diff options
Diffstat (limited to 'krfb/libvncserver')
49 files changed, 17962 insertions, 0 deletions
diff --git a/krfb/libvncserver/1instance.c b/krfb/libvncserver/1instance.c new file mode 100644 index 00000000..8feadb53 --- /dev/null +++ b/krfb/libvncserver/1instance.c @@ -0,0 +1,141 @@ +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> +#include <string.h> +#include <unistd.h> +#include <stdio.h> + +typedef struct { + char* filename; /* this file is the pipe (set by user) */ + char is_server; /* this is set by open_control_file */ + int fd; /* this is set by open_control_file */ +} single_instance_struct; + +/* returns fd, is_server is set to -1 if server, 0 if client */ +int open_control_file(single_instance_struct* str) +{ + struct stat buf; + + if(stat(str->filename,&buf)) { + mkfifo(str->filename,128|256); + str->is_server=-1; + str->fd=open(str->filename,O_NONBLOCK|O_RDONLY); + } else { + str->fd=open(str->filename,O_NONBLOCK|O_WRONLY); + if(errno==ENXIO) { + str->is_server=-1; + str->fd=open(str->filename,O_NONBLOCK|O_RDONLY); + } else + str->is_server=0; + } + + return(str->fd); +} + +void delete_control_file(single_instance_struct* str) +{ + remove(str->filename); +} + +void close_control_file(single_instance_struct* str) +{ + close(str->fd); +} + +typedef void (*event_dispatcher)(char* message); + +int get_next_message(char* buffer,int len,single_instance_struct* str,int usecs) +{ + struct timeval tv; + fd_set fdset; + int num_fds; + + FD_ZERO(&fdset); + FD_SET(str->fd,&fdset); + tv.tv_sec=0; + tv.tv_usec=usecs; + + num_fds=select(str->fd+1,&fdset,NULL,NULL,&tv); + if(num_fds) { + int reallen; + + reallen=read(str->fd,buffer,len); + if(reallen==0) { + close(str->fd); + str->fd=open(str->filename,O_NONBLOCK|O_RDONLY); + num_fds--; + } + buffer[reallen]=0; +#ifdef DEBUG_1INSTANCE + if(reallen!=0) fprintf(stderr,"message received: %s.\n",buffer); +#endif + } + + return(num_fds); +} + +int dispatch_event(single_instance_struct* str,event_dispatcher dispatcher,int usecs) +{ + char buffer[1024]; + int num_fds; + + if((num_fds=get_next_message(buffer,1024,str,usecs)) && buffer[0]) + dispatcher(buffer); + + return(num_fds); +} + +int loop_if_server(single_instance_struct* str,event_dispatcher dispatcher) +{ + open_control_file(str); + if(str->is_server) { + while(1) + dispatch_event(str,dispatcher,50); + } + + return(str->fd); +} + +void send_message(single_instance_struct* str,char* message) +{ +#ifdef DEBUG_1INSTANCE + int i= +#endif + write(str->fd,message,strlen(message)); +#ifdef DEBUG_1INSTANCE + fprintf(stderr,"send: %s => %d(%d)\n",message,i,strlen(message)); +#endif +} + +#ifdef DEBUG_MAIN + +#include <stdio.h> +#include <stdlib.h> + +single_instance_struct str1 = { "/tmp/1instance" }; + +void my_dispatcher(char* message) +{ +#ifdef DEBUG_1INSTANCE + fprintf(stderr,"Message arrived: %s.\n",message); +#endif + if(!strcmp(message,"quit")) { + delete_control_file(str1); + exit(0); + } +} + +int main(int argc,char** argv) +{ + int i; + + loop_if_server(str1,my_dispatcher); + + for(i=1;i<argc;i++) + send_event(str1,argv[i]); + + return(0); +} + +#endif diff --git a/krfb/libvncserver/CHANGES b/krfb/libvncserver/CHANGES new file mode 100644 index 00000000..8767a12a --- /dev/null +++ b/krfb/libvncserver/CHANGES @@ -0,0 +1,75 @@ + memory leaks squashed (localtime pseudo leak is still there :-) + small improvements for OSXvnc (still not working correctly) + synced with TightVNC 1.2.3 + solaris compile cleanups + many x11vnc improvements + added backchannel, an encoding which needs special clients to pass + arbitrary data to the client + changes from Tim Jansen regarding multi threading and client blocking + as well as C++ compliancy + x11vnc can be controlled by starting again with special options if compiling + with LOCAL_CONTROL defined +0.3 + added x11vnc, a x0rfbserver clone + regard deferUpdateTime in processEvents, if usec<0 + initialize deferUpdateTime (memory "leak"!) + changed command line handling (arguments are parsed and then removed) + added very simple example: zippy + added rfbDrawLine, rfbDrawPixel +0.2 + inserted a deferUpdate mechanism (X11 independent). + removed deletion of requestedRegion + added rfbLoadConsoleFont + fixed font colour handling. + added rfbSelectBox + added rfbDrawCharWithClip to allow for clipping and a background colour. + fixed font colours + added rfbFillRect + added IO function to check password. + rfbNewClient now sets the socket in the fd_set (for the select() call) + when compiling the library with HAVE_PTHREADS and an application + which includes "rfb.h" without, the structures got mixed up. + So, the pthreads section is now always at the end, and also + you get a linker error for rfbInitServer when using two different + pthread setups. + fixed two deadlocks: when setting a cursor and when using CopyRect + fixed CopyRect when copying modified regions (they lost the modified + property) + WIN32 target compiles and works for example :-) + fixed CopyRect (was using the wrong order of rectangles...) + should also work with pthreads, because copyrects are + always sent immediately (so that two consecutive copy rects + cannot conflict). + changed rfbUndrawCursor(rfbClientPtr) to (rfbScreenInfoPtr), because + this makes more sense! + flag backgroundLoop in rfbScreenInfo (if having pthreads) + CopyRect & CopyRegion were implemented. + if you use a rfbDoCopyR* function, it copies the data in the + framebuffer. If you prefer to do that yourself, use rfbScheduleCopyR* + instead; this doesn't modify the frameBuffer. + added flag to optionally not send XCursor updates, but only RichCursor, + or if that is not possible, fall back to server side cursor. + This is useful if your cursor has many nice colours. + fixed java viewer on server side: + SendCursorUpdate would send data even before the client pixel format + was set, but the java applet doesn't like the server's format. + fixed two pthread issues: + rfbSendFramebuffer was sent by a ProcessClientMessage function + (unprotected by updateMutex). + cursor coordinates were set without protection by cursorMutex + source is now equivalent to TridiaVNC 1.2.1 + pthreads now work (use iterators!) + cursors are supported (rfbSetCursor automatically undraws cursor) + support for 3 bytes/pixel (slow!) + server side colourmap support + fixed rfbCloseClient not to close the connection (pthreads!) + this is done lazily (and with proper signalling). + cleaned up mac.c (from original OSXvnc); now compiles (untested!) + compiles cleanly on Linux, IRIX, BSD, Apple (Darwin) + fixed prototypes +0.1 + rewrote API to use pseudo-methods instead of required functions. + lots of clean up. + Example can show symbols now. + All encodings + HTTP diff --git a/krfb/libvncserver/COPYING b/krfb/libvncserver/COPYING new file mode 100644 index 00000000..a3f6b12e --- /dev/null +++ b/krfb/libvncserver/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + <signature of Ty Coon>, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/krfb/libvncserver/Makefile.am b/krfb/libvncserver/Makefile.am new file mode 100644 index 00000000..ed8e22d2 --- /dev/null +++ b/krfb/libvncserver/Makefile.am @@ -0,0 +1,14 @@ +INCLUDES = $(all_includes) + +noinst_LTLIBRARIES = libvncserver.la + +libvncserver_la_SOURCES = main.c rfbserver.c sraRegion.c auth.c sockets.c \ + stats.c corre.c hextile.c rre.c translate.c cutpaste.c \ + zlib.c tight.c httpd.c cursor.c font.c \ + draw.c selbox.c d3des.c vncauth.c cargs.c + +EXTRA_DIST = CHANGES COPYING README TODO + +AM_CPPFLAGS = -DHAVE_PTHREADS -DALLOW24BPP +AM_CFLAGS = -Wno-unused + diff --git a/krfb/libvncserver/README b/krfb/libvncserver/README new file mode 100644 index 00000000..fe6d0c01 --- /dev/null +++ b/krfb/libvncserver/README @@ -0,0 +1,417 @@ +LibVNCServer: a library for easy implementation of a RDP/VNC server. +Copyright (C) 2001 Johannes E. Schindelin + +What is it? +----------- + +VNC is a set of programs using the RFB (Remote Frame Buffer) protocol. They +are designed to "export" a frame buffer via net (if you don't know VNC, I +suggest you read "Basics" below). It is already in wide use for +administration, but it is not that easy to program a server yourself. + +This has been changed by LibVNCServer. + +There are two examples included: + - example, a shared scribble sheet + - pnmshow, a program to show PNMs (pictures) over the net. + +The examples are not too well documented, but easy straight forward and a +good starting point. + +Try example: it outputs on which port it listens (default: 5900), so it is +display 0. To view, call + vncviewer :0 +You should see a sheet with a gradient and "Hello World!" written on it. Try +to paint something. Note that everytime you click, there is some bigger blot. +The size depends on the mouse button you click. Open a second vncviewer with +the same parameters and watch it as you paint in the other window. This also +works over internet. You just have to know either the name or the IP of your +machine. Then it is + vncviewer machine.where.example.runs.com:0 +or similar for the remote client. Now you are ready to type something. Be sure +that your mouse sits still, because everytime the mouse moves, the cursor is +reset! If you are done with that demo, just press Escape in the viewer. Note +that the server still runs, even if you closed both windows. When you +reconnect now, everything you painted and wrote is still there. So you press +"Page Up" for a blank page. + +The demo pnmshow is much simpler: you either provide a filename as argument +or pipe a file through stdin. Note that the file has to be a raw pnm/ppm file, +i.e. a truecolour graphics. Only the Escape key is implemented. This may be +the best starting point if you want to learn how to use LibVNCServer. You +are confronted with the fact that the bytes per pixel can only be 8, 16 or 32. + +How to use +---------- + +To make a server, you just have to initialise a server structure using the +function rfbDefaultScreenInit, like + rfbScreenInfoPtr rfbScreen = + rfbGetScreen(argc,argv,width,height,8,3,bpp); +where byte per pixel should be 1, 2 or 4. If performance doesn't matter, +you may try bpp=3 (internally one cannot use native data types in this +case; if you want to use this, look at pnmshow24). + + +You then can set hooks and io functions (see below) or other +options (see below). + +And you allocate the frame buffer like this: + rfbScreen->frameBuffer = (char*)malloc(width*height*bpp); + +After that, you initialize the server, like + rfbInitServer(rfbScreen); + +You can use a blocking event loop, a background (pthread based) event loop, +or implement your own using the rfbProcessEvents function. + +Making it interactive +--------------------- + +Input is handled by IO functions (see below). + +Whenever you change something in the frame buffer, call rfbMarkRectAsModified. +You should make sure that the cursor is not drawn before drawing yourself +by calling rfbUndrawCursor. You can also draw the cursor using rfbDrawCursor, +but it hardly seems necessary. For cursor details, see below. + +Utility functions +----------------- + +Whenever you draw something, you have to call + rfbMarkRectAsModified(screen,x1,y1,x2,y2). +This tells LibVNCServer to send updates to all connected clients. + +Before you draw something, be sure to call + rfbUndrawCursor(screen). +This tells LibVNCServer to hide the cursor. +Remark: There are vncviewers out there, which know a cursor encoding, so +that network traffic is low, and also the cursor doesn't need to be +drawn the cursor everytime an update is sent. LibVNCServer handles +all the details. Just set the cursor and don't bother any more. + +To set the mouse coordinates (or emulate mouse clicks), call + defaultPtrAddEvent(buttonMask,x,y,cl); +However, this works only if your client doesn't do local cursor drawing. There +is no way (to my knowledge) to set the pointer of a client via RFB protocol. +IMPORTANT: do this at the end of your function, because this actually draws +the cursor if no cursor encoding is active. + +What is the difference between rfbScreenInfoPtr and rfbClientPtr? +----------------------------------------------------------------- + +The rfbScreenInfoPtr is a pointer to a rfbScreenInfo structure, which +holds information about the server, like pixel format, io functions, +frame buffer etc. + +The rfbClientPtr is a pointer to an rfbClientRec structure, which holds +information about a client, like pixel format, socket of the +connection, etc. + +A server can have several clients, but needn't have any. So, if you +have a server and three clients are connected, you have one instance +of a rfbScreenInfo and three instances of rfbClientRec's. + +The rfbClientRec structure holds a member + rfbScreenInfoPtr screen +which points to the server and a member + rfbClientPtr next +to the next client. + +The rfbScreenInfo structure holds a member + rfbClientPtr rfbClientHead +which points to the first client. + +So, to access the server from the client structure, you use client->screen. +To access all clients from a server, get screen->rfbClientHead and +iterate using client->next. + +If you change client settings, be sure to use the provided iterator + rfbGetClientIterator(rfbScreen) +with + rfbClientIteratorNext(iterator) +and + rfbReleaseClientIterator +to prevent thread clashes. + +Other options +------------- + +These options have to be set between rfbGetScreen and rfbInitServer. + +If you already have a socket to talk to, just set rfbScreen->inetdSock +(originally this is for inetd handling, but why not use it for your purpose?). + +To also start an HTTP server (running on port 5800+display_number), you have +to set rfbScreen->httpdDir to a directory containing vncviewer.jar and +index.vnc (like the included "classes" directory). + +Hooks and IO functions +---------------------- + +There exist the following IO functions as members of rfbScreen: +kbdAddEvent, kbdReleaseAllKeys, ptrAddEvent and setXCutText + +kbdAddEvent(Bool down,KeySym key,rfbClientPtr cl) + is called when a key is pressed. +kbdReleaseAllKeys(rfbClientPtr cl) + is not called at all (maybe in the future). +ptrAddEvent(int buttonMask,int x,int y,rfbClientPtr cl) + is called when the mouse moves or a button is pressed. + WARNING: if you want to have proper cursor handling, call + defaultPtrAddEvent(buttonMask,x,y,cl) + in your own function. This sets the coordinates of the cursor. +setXCutText(char* str,int len,rfbClientPtr cl) + is called when the selection changes. + +There are only two hooks: +newClientHook(rfbClientPtr cl) + is called when a new client has connected. +displayHook + is called just before a frame buffer update is sent. + +You can also override the following methods: +getCursorPtr(rfbClientPtr cl) + This could be used to make an animated cursor (if you really want ...) +setTranslateFunction(rfbClientPtr cl) + If you insist on colour maps or something more obscure, you have to + implement this. Default is a trueColour mapping. + +Cursor handling +--------------- + +The screen holds a pointer + rfbCursorPtr cursor +to the current cursor. Whenever you set it, remember that any dynamically +created cursor (like return value from rfbMakeXCursor) is not free'd! + +The rfbCursor structure consists mainly of a mask and a source. The mask +describes, which pixels are drawn for the cursor (a cursor needn't be +rectangular). The source describes, which colour those pixels should have. + +The standard is an XCursor: a cursor with a foreground and a background +colour (stored in backRed,backGreen,backBlue and the same for foreground +in a range from 0-0xffff). Therefore, the arrays "mask" and "source" +contain pixels as single bits stored in bytes in MSB order. The rows are +padded, such that each row begins with a new byte (i.e. a 10x4 +cursor's mask has 2x4 bytes, because 2 bytes are needed to hold 10 bits). + +It is however very easy to make a cursor like this: + +char* cur=" " + " xx " + " x " + " "; +char* mask="xxxx" + "xxxx" + "xxxx" + "xxx "; +rfbCursorPtr c=rfbMakeXCursor(4,4,cur,mask); + +You can even set "mask" to NULL in this call and LibVNCServer will calculate +a mask for you (dynamically, so you have to free it yourself). + +There is also an array named "richSource" for colourful cursors. They have +the same format as the frameBuffer (i.e. if the server is 32 bit, +a 10x4 cursor has 4x10x4 bytes). + +History +------- + +LibVNCServer is based on Tridia VNC and OSXvnc, which in turn are based on +the original code from ORL/AT&T. + +When I began hacking with computers, my first interest was speed. So, when I +got around assembler, I programmed the floppy to do much of the work, because +it's clock rate was higher than that of my C64. This was my first experience +with client/server techniques. + +When I came around Xwindows (much later), I was at once intrigued by the +elegance of such connectedness between the different computers. I used it +a lot - not the least priority lay on games. However, when I tried it over +modem from home, it was no longer that much fun. + +When I started working with ASP (Application Service Provider) programs, I +tumbled across Tarantella and Citrix. Being a security fanatic, the idea of +running a server on windows didn't appeal to me, so Citrix went down the +basket. However, Tarantella has it's own problems (security as well as the +high price). But at the same time somebody told me about this "great little +administrator's tool" named VNC. Being used to windows programs' sizes, the +surprise was reciprocal inverse to the size of VNC! + +At the same time, the program "rdesktop" (a native Linux client for the +Terminal Services of Windows servers) came to my attention. There where even +works under way to make a protocol converter "rdp2vnc" out of this. However, +my primary goal was a slow connection and rdp2vnc could only speak RRE +encoding, which is not that funny with just 5kB/s. Tim Edmonds, the original +author of rdp2vnc, suggested that I adapt it to Hextile Encoding, which is +better. I first tried that, but had no success at all (crunchy pictures). + +Also, I liked the idea of an HTTP server included and possibly other +encodings like the Tight Encodings from Const Kaplinsky. So I started looking +for libraries implementing a VNC server where I could steal what I can't make. +I found some programs based on the demo server from AT&T, which was also the +basis for rdp2vnc (can only speak Raw and RRE encoding). There were some +rumors that GGI has a VNC backend, but I didn't find any code, so probably +there wasn't a working version anyway. + +All of a sudden, everything changed: I read on freshmeat that "OSXvnc" was +released. I looked at the code and it was not much of a problem to work out +a simple server - using every functionality there is in Xvnc. It became clear +to me that I *had* to build a library out of it, so everybody can use it. +Every change, every new feature can propagate to every user of it. + +It also makes everything easier: + You don't care about the cursor, once set (or use the standard cursor). +You don't care about those sockets. You don't care about encodings. +You just change your frame buffer and inform the library about it. Every once +in a while you call rfbProcessEvents and that's it. + +Basics +------ + +VNC (Virtual network computing) works like this: You set up a server and can +connect to it via vncviewers. The communication uses a protocol named RFB +(Remote Frame Buffer). If the server supports HTTP, you can also connect +using a java enabled browser. In this case, the server sends back a +vncviewer applet with the correct settings. + +There exist several encodings for VNC, which are used to compress the regions +which have changed before they are sent to the client. A client need not be +able to understand every encoding, but at least Raw encoding. Which encoding +it understands is negotiated by the RFB protocol. + +The following encodings are known to me: +Raw, RRE, CoRRE, Hextile, CopyRect from the original AT&T code and +Tight, ZLib, LastRect, XCursor, RichCursor from Const Kaplinsky et al. + +If you are using a modem, you want to try the "new" encodings. Especially +with my 56k modem I like ZLib or Tight with Quality 0. In my tests, it even +beats Tarantella. + +There is the possibility to set a password, which is also negotiated by the +RFB protocol, but IT IS NOT SECURE. Anybody sniffing your net can get the +password. You really should tunnel through SSH. + +Windows or: why do you do that to me? +-------------------------------------------- + +If you love products from Redmod, you better skip this paragraph. +I am always amazed how people react whenever Microsoft(tm) puts in some +features into their products which were around for a long time. Especially +reporters seem to not know dick about what they are reporting about! But +what is everytime annoying again, is that they don't do it right. Every +concept has it's new name (remember what enumerators used to be until +Mickeysoft(tm) claimed that enumerators are what we thought were iterators. +Yeah right, enumerators are also containers. They are not separate. Muddy.) + +There are three packages you want to get hold of: zlib, jpeg and pthreads. +The latter is not strictly necessary, but when you put something like this +into your source: + +#define MUTEX(s) + struct { + int something; + MUTEX(latex); + } + +Microsoft's C++ compiler doesn't do it. It complains that this is an error. + +You can find the packages at +http://www.gimp.org/win32/extralibs-dev-20001007.zip + +Thanks go to all the GIMP team! + +What are those other targets in the Makefile? +--------------------------------------------- + +OSXvnc-server is the original OSXvnc adapted to use the library, which was in +turn adapted from OSXvnc. As you easily can see, the OSX dependend part is +minimal. + +storepasswd is the original program to save a vnc style password in a file. +Unfortunately, authentication as every vncviewer speaks it means the server +has to know the plain password. You really should tunnel via ssh or use +your own PasswordCheck to build a PIN/TAN system. + +sratest is a test unit. Run it to assert correct behaviour of sraRegion. I +wrote this to test my iterator implementation. + +blooptest is a test of pthreads. It is just the example, but with a background +loop to hunt down thread lockups. + +pnmshow24 is like pnmshow, but it uses 3 bytes/pixel internally, which is not +as efficient as 4 bytes/pixel for translation, because there is no native data +type of that size, so you have to memcpy pixels and be real cautious with +endianness. Anyway, it works. + +fontsel is a test for rfbSelectBox and rfbLoadConsoleFont. If you have Linux +console fonts, you can browse them via VNC. Directory browsing not implemented +yet :-( + +Why I don't feel bad about GPL +------------------------------ + +At the beginning of this projects I would have liked to make it a BSD +license. However, it is based on plenty of GPL'ed code, so it has to be +a GPL. I hear BeeGee complaining: "but that's invasive, every derivative +work, even just linking, makes my software GPL!" + +Yeah. That's right. It is because there are nasty jarheads out there who +would take anybody's work and claim it their own, selling it for much too +much money, stealing freedom and innovation from others, saying they were +the maintainers of innovation, lying, making money with that. + +The people at AT&T worked really well to produce something as clean and lean +as VNC. The managers decided that for their fame, they would release the +program for free. But not only that! They realized that by releasing also +the code for free, VNC would become an evolving little child, conquering +new worlds, making it's parents very proud. As well they can be! To protect +this innovation, they decided to make it GPL, not BSD. The principal +difference is: You can make closed source programs deriving from BSD, not +from GPL. You have to give proper credit with both. + +Now, why not BSD? Well, imagine your child being some famous actor. Along +comes a manager who exploits your child exclusively, that is: nobody else +can profit from the child, it itself included. Got it? + +What reason do you have now to use this library commercially? + +Several: You don't have to give away your product. Then you have effectively +circumvented the GPL, because you have the benefits of other's work and you +don't give back anything and you will be in hell for that. In fact, this +library, as my other projects, is a payback for all the free software I can +use (and sometimes, make better). For example, just now, I am using XEmacs +on top X11, all running under Linux. + +Better: Use a concept like MySQL. This is free software, however, they make +money with it. If you want something implemented, you have the choice: +Ask them to do it (and pay a fair price), or do it yourself, normally giving +back your enhancements to the free world of computing. + +Learn from it: If you like the style this is written, learn how to imitate +it. If you don't like the style, learn how to avoid those things you don't +like. I learnt so much, just from looking at code like Linux, XEmacs, +LilyPond, STL, etc. + +License +------- + +This program is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public License +as published by the Free Software Foundation; either version 2 +of the License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.dfdf + +Contact +------- + +To contact me, mail me: Johannes dot Schindelin at gmx dot de diff --git a/krfb/libvncserver/TODO b/krfb/libvncserver/TODO new file mode 100644 index 00000000..70dae90d --- /dev/null +++ b/krfb/libvncserver/TODO @@ -0,0 +1,80 @@ +immediate: +---------- + +x11vnc: clipboard, cursor, updates interruptible by input (doesn't work yet) +extra_bytes in rfbDrawCharWithClip. +tested mouse buttons make copy rect, but text is not marked as mod. +cursor drawing: set optional grain to mark bigger rectangles as drawn (else + you end up with thousands of one-pixel-rectangles to encode). +selectbox: scroll bars +documentation + hint that to mark very tiny regions as + modified is possibly inefficient for the encodings. + (a trail of points could better be a small rectangle). + +later: +------ + +authentification schemes (secure vnc) + IO function ptr exists; now explain how to tunnel and implement a + client address restriction scheme. +autoconf? at least Sun Solaris and Windows compilation + (maybe Michael makes a small autconf) +using Hermes library for fast colour translations. +CORBA +internal HTTP tunnelling feature (needs a special GET target and a few + changes to java applet). + +done: +----- + +.x11vnc: sometimes XTest fails (but doesn't with x0rfbserver) +.DeferUpdateTime (timing problems!) +.empty cursor sending doesn't work. +.udp (need an rfbClientPtr udpClient in rfbScreen) + input only; nearly untested (don't have the clients). +.font handling: bpp>1 +.test copyRect and pthreads. +.optionally dont draw rich cursors as xcursors +.cursor smears on IRIX with pthreads, then has bus error. has to be a mutex + problem in cursor routines. +.fix bug in http (java) client with big endian server: byte swapping is broken + (was a cursorshape which was sent too soon; java vncviewer assumes + a rich cursor shape to be always 1 byte per pixel, however, framebuffer + updates before setting the pixel format can be server format) +.rfbConnect, ConnectToTcpAddr +.update to newest TridiaVNC version (1.2.1). +.adapt rdp2vnc (rdesktop) +.pthreads concept: How to iterate over rfbClientPtr's? So that it can be + either called from rfbProcessEvents (which locks the list mutex) + or from the main thread (where the background loop sometimes + locks the list mutex). + - cursor drawing! + - cursor setting! + - rfbMarkRectAsModified + (did that by adding a refcount to clients secured by refCountMutex; + it also was necessary to check for cl->sock<0 in SendUpdateBuf) +.translate.c: warning about non 8-bit colourmaps + 16-bit colourmaps are 192k -> no use without fast net. +.rfbCloseClient +.set colourmap +.support 3 bytes per pixel +.cursors +.cutpaste +.httpd +.other encodings +.test drawing of cursors when not using xcursor or rich cursor encoding +fix bug with odd width (depends on client depth: width has to be multiple of server.bytesPerPixel/client.bytesPerPixel). only raw!! -> bug of vncviewer! +.use sraRegion from Wez instead of miregion, because it is much smaller +. - connection gone and then reconnect is a problem + the reason: there are in fact three threads accessing + the clientPtr: input, output and the application thread. + if you kill the viewer or do rfbCloseClient, all of those + three have to be warned that this is happening. + -> rfbClientConnectionGone can only be called by the outer loop + (with background loop, it is input, else it is processEvents). +. fixed pthreads issues: + cursor deadlock, + CopyRect deadlock. +. when copying a region with modified parts, they were not marked + as modified diff --git a/krfb/libvncserver/auth.c b/krfb/libvncserver/auth.c new file mode 100644 index 00000000..35657b8f --- /dev/null +++ b/krfb/libvncserver/auth.c @@ -0,0 +1,109 @@ +/* + * auth.c - deal with authentication. + * + * This file implements the VNC authentication protocol when setting up an RFB + * connection. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include "rfb.h" + +static int rfbMaxPasswordWait = 120000; /* password timeout (ms) */ + +/* + * rfbAuthNewClient is called when we reach the point of authenticating + * a new client. If authentication isn't being used then we simply send + * rfbNoAuth. Otherwise we send rfbVncAuth plus the challenge. + */ + +void +rfbAuthNewClient(cl) + rfbClientPtr cl; +{ + char buf[4 + CHALLENGESIZE]; + int len; + + cl->state = RFB_AUTHENTICATION; + + if (cl->screen->rfbAuthPasswdData && !cl->reverseConnection) { + *(CARD32 *)buf = Swap32IfLE(rfbVncAuth); + vncRandomBytes(cl->authChallenge); + memcpy(&buf[4], (char *)cl->authChallenge, CHALLENGESIZE); + len = 4 + CHALLENGESIZE; + } else { + *(CARD32 *)buf = Swap32IfLE(rfbNoAuth); + len = 4; + cl->state = RFB_INITIALISATION; + } + + if (WriteExact(cl, buf, len) < 0) { + rfbLogPerror("rfbAuthNewClient: write"); + rfbCloseClient(cl); + return; + } +} + + +/* + * rfbAuthProcessClientMessage is called when the client sends its + * authentication response. + */ + +void +rfbAuthProcessClientMessage(cl) + rfbClientPtr cl; +{ + int n; + CARD8 response[CHALLENGESIZE]; + CARD32 authResult; + + if ((n = ReadExactTimeout(cl, (char *)response, CHALLENGESIZE, + rfbMaxPasswordWait)) <= 0) { + if (n != 0) + rfbLogPerror("rfbAuthProcessClientMessage: read"); + rfbCloseClient(cl); + return; + } + + if(!cl->screen->passwordCheck(cl,response,CHALLENGESIZE)) { + rfbLog("rfbAuthProcessClientMessage: password check failed\n"); + authResult = Swap32IfLE(rfbVncAuthFailed); + if (WriteExact(cl, (char *)&authResult, 4) < 0) { + rfbLogPerror("rfbAuthProcessClientMessage: write"); + } + rfbCloseClient(cl); + return; + } + + authResult = Swap32IfLE(rfbVncAuthOK); + + if (WriteExact(cl, (char *)&authResult, 4) < 0) { + rfbLogPerror("rfbAuthProcessClientMessage: write"); + rfbCloseClient(cl); + return; + } + + cl->state = RFB_INITIALISATION; +} diff --git a/krfb/libvncserver/bdf2c.pl b/krfb/libvncserver/bdf2c.pl new file mode 100644 index 00000000..fc437127 --- /dev/null +++ b/krfb/libvncserver/bdf2c.pl @@ -0,0 +1,60 @@ +#!/usr/bin/perl + +@encodings=(); +for($i=0;$i<256*5;$i++) { + $encodings[$i]="0"; +} + +$out=""; +$counter=0; +$fontname="default"; + +$i=0; +$searchfor=""; +$nullx="0x"; + +while(<>) { + if(/^FONT (.*)$/) { + $fontname=$1; + $fontname=~y/\"//d; + } elsif(/^ENCODING (.*)$/) { + $glyphindex=$1; + $searchfor="BBX"; + $dwidth=0; + } elsif(/^DWIDTH (.*) (.*)/) { + $dwidth=$1; + } elsif(/^BBX (.*) (.*) (.*) (.*)$/) { + ($width,$height,$x,$y)=($1,$2,$3,$4); + @encodings[$glyphindex*5..($glyphindex*5+4)]=($counter,$width,$height,$x,$y); + if($dwidth != 0) { + $encodings[$glyphindex*5+1]=$dwidth; + } else { + $dwidth=$width; + } + $searchfor="BITMAP"; + } elsif(/^BITMAP/) { + $i=1; + } elsif($i>0) { + if($i>$height) { + $i=0; + $out.=" /* $glyphindex */\n"; + } else { + if(int(($dwidth+7)/8) > int(($width+7)/8)) { + $_ .= "00"x(int(($dwidth+7)/8)-int(($width+7)/8)); + } + $_=substr($_,0,(int(($dwidth+7)/8)*2)); + $counter+=(int(($dwidth+7)/8)); + s/(..)/$nullx$1,/g; + $out.=$_; + $i++; + } + } +} + +print "unsigned char " . $fontname . "FontData[$counter]={\n" . $out; +print "};\nint " . $fontname . "FontMetaData[256*5]={\n"; +for($i=0;$i<256*5;$i++) { + print $encodings[$i] . ","; +} +print "};\nrfbFontData " . $fontname . "Font={" . + $fontname . "FontData, " . $fontname . "FontMetaData};\n"; diff --git a/krfb/libvncserver/cargs.c b/krfb/libvncserver/cargs.c new file mode 100644 index 00000000..03696a31 --- /dev/null +++ b/krfb/libvncserver/cargs.c @@ -0,0 +1,135 @@ +/* + * This parses the command line arguments. It was seperated from main.c by + * Justin Dearing <[email protected]>. + */ + +/* + * LibVNCServer (C) 2001 Johannes E. Schindelin <[email protected]> + * Original OSXvnc (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * see GPL (latest version) for full details + */ + +#include "rfb.h" + +void +rfbUsage(void) +{ + fprintf(stderr, "-rfbport port TCP port for RFB protocol\n"); + fprintf(stderr, "-rfbwait time max time in ms to wait for RFB client\n"); + fprintf(stderr, "-rfbauth passwd-file use authentication on RFB protocol\n" + " (use 'storepasswd' to create a password file)\n"); + fprintf(stderr, "-passwd plain-password use authentication \n" + " (use plain-password as password, USE AT YOUR RISK)\n"); + fprintf(stderr, "-deferupdate time time in ms to defer updates " + "(default 40)\n"); + fprintf(stderr, "-desktop name VNC desktop name (default \"LibVNCServer\")\n"); + fprintf(stderr, "-alwaysshared always treat new clients as shared\n"); + fprintf(stderr, "-nevershared never treat new clients as shared\n"); + fprintf(stderr, "-dontdisconnect don't disconnect existing clients when a " + "new non-shared\n" + " connection comes in (refuse new connection " + "instead)\n"); + exit(1); +} + +/* purges COUNT arguments from ARGV at POSITION and decrements ARGC. + POSITION points to the first non purged argument afterwards. */ +void rfbPurgeArguments(int* argc,int* position,int count,char *argv[]) +{ + int amount=(*argc)-(*position)-count; + if(amount) + memmove(argv+(*position),argv+(*position)+count,sizeof(char*)*amount); + (*argc)-=count; + (*position)--; +} + +void +rfbProcessArguments(rfbScreenInfoPtr rfbScreen,int* argc, char *argv[]) +{ + int i,i1; + + if(!argc) return; + + for (i = i1 = 1; i < *argc; i++) { + if (strcmp(argv[i], "-help") == 0) { + rfbUsage(); + exit(1); + } else if (strcmp(argv[i], "-rfbport") == 0) { /* -rfbport port */ + if (i + 1 >= *argc) rfbUsage(); + rfbScreen->rfbPort = atoi(argv[++i]); + } else if (strcmp(argv[i], "-rfbwait") == 0) { /* -rfbwait ms */ + if (i + 1 >= *argc) rfbUsage(); + rfbScreen->rfbMaxClientWait = atoi(argv[++i]); + } else if (strcmp(argv[i], "-rfbauth") == 0) { /* -rfbauth passwd-file */ + if (i + 1 >= *argc) rfbUsage(); + rfbScreen->rfbAuthPasswdData = argv[++i]; + } else if (strcmp(argv[i], "-passwd") == 0) { /* -passwd password */ + char **passwds = malloc(sizeof(char**)*2); + if (i + 1 >= *argc) rfbUsage(); + passwds[0] = argv[++i]; + passwds[1] = 0; + rfbScreen->rfbAuthPasswdData = (void*)passwds; + rfbScreen->passwordCheck = rfbCheckPasswordByList; + } else if (strcmp(argv[i], "-deferupdate") == 0) { /* -desktop desktop-name */ + if (i + 1 >= *argc) rfbUsage(); + rfbScreen->rfbDeferUpdateTime = atoi(argv[++i]); + } else if (strcmp(argv[i], "-desktop") == 0) { /* -desktop desktop-name */ + if (i + 1 >= *argc) rfbUsage(); + rfbScreen->desktopName = argv[++i]; + } else if (strcmp(argv[i], "-alwaysshared") == 0) { + rfbScreen->rfbAlwaysShared = TRUE; + } else if (strcmp(argv[i], "-nevershared") == 0) { + rfbScreen->rfbNeverShared = TRUE; + } else if (strcmp(argv[i], "-dontdisconnect") == 0) { + rfbScreen->rfbDontDisconnect = TRUE; + } else if (strcmp(argv[i], "-width") == 0) { + rfbScreen->width = atoi(argv[++i]); + } else if (strcmp(argv[i], "-height") == 0) { + rfbScreen->height = atoi(argv[++i]); + } else { + /* we just remove the processed arguments from the list */ + if(i != i1) + rfbPurgeArguments(argc,&i,i1-i,argv); + i1++; + i++; + } + } + *argc -= i-i1; +} + +void rfbSizeUsage() +{ + fprintf(stderr, "-width sets the width of the framebuffer\n"); + fprintf(stderr, "-height sets the height of the framebuffer\n"); + exit(1); +} + +void +rfbProcessSizeArguments(int* width,int* height,int* bpp,int* argc, char *argv[]) +{ + int i,i1; + + if(!argc) return; + for (i = i1 = 1; i < *argc-1; i++) { + if (strcmp(argv[i], "-bpp") == 0) { + *bpp = atoi(argv[++i]); + } else if (strcmp(argv[i], "-width") == 0) { + *width = atoi(argv[++i]); + } else if (strcmp(argv[i], "-height") == 0) { + *height = atoi(argv[++i]); + } else { + /* we just remove the processed arguments from the list */ + if(i != i1) { + memmove(argv+i1,argv+i,sizeof(char*)*(*argc-i)); + *argc -= i-i1; + } + i1++; + i = i1-1; + } + } + *argc -= i-i1; +} + diff --git a/krfb/libvncserver/corre.c b/krfb/libvncserver/corre.c new file mode 100644 index 00000000..d6329a10 --- /dev/null +++ b/krfb/libvncserver/corre.c @@ -0,0 +1,355 @@ +/* + * corre.c + * + * Routines to implement Compact Rise-and-Run-length Encoding (CoRRE). This + * code is based on krw's original javatel rfbserver. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include "rfb.h" + +/* + * rreBeforeBuf contains pixel data in the client's format. + * rreAfterBuf contains the RRE encoded version. If the RRE encoded version is + * larger than the raw data or if it exceeds rreAfterBufSize then + * raw encoding is used instead. + */ + +static int rreBeforeBufSize = 0; +static char *rreBeforeBuf = NULL; + +static int rreAfterBufSize = 0; +static char *rreAfterBuf = NULL; +static int rreAfterBufLen; + +static int subrectEncode8(CARD8 *data, int w, int h); +static int subrectEncode16(CARD16 *data, int w, int h); +static int subrectEncode32(CARD32 *data, int w, int h); +static CARD32 getBgColour(char *data, int size, int bpp); +static Bool rfbSendSmallRectEncodingCoRRE(rfbClientPtr cl, int x, int y, + int w, int h); + + +/* + * rfbSendRectEncodingCoRRE - send an arbitrary size rectangle using CoRRE + * encoding. + */ + +Bool +rfbSendRectEncodingCoRRE(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + if (h > cl->correMaxHeight) { + rfbSendRectEncodingCoRRE(cl, x, y, w, cl->correMaxHeight ); + rfbSendRectEncodingCoRRE(cl, x, y + cl->correMaxHeight, w, + h - cl->correMaxHeight); + return FALSE; + } + + if (w > cl->correMaxWidth) { + rfbSendRectEncodingCoRRE(cl, x, y, cl->correMaxWidth, h); + rfbSendRectEncodingCoRRE(cl, x + cl->correMaxWidth, y, + w - cl->correMaxWidth, h); + return FALSE; + } + + rfbSendSmallRectEncodingCoRRE(cl, x, y, w, h); + return TRUE; +} + + + +/* + * rfbSendSmallRectEncodingCoRRE - send a small (guaranteed < 256x256) + * rectangle using CoRRE encoding. + */ + +static Bool +rfbSendSmallRectEncodingCoRRE(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + rfbFramebufferUpdateRectHeader rect; + rfbRREHeader hdr; + int nSubrects; + int i; + char *fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y) + + (x * (cl->screen->bitsPerPixel / 8))); + + int maxRawSize = (cl->screen->width * cl->screen->height + * (cl->format.bitsPerPixel / 8)); + + if (rreBeforeBufSize < maxRawSize) { + rreBeforeBufSize = maxRawSize; + if (rreBeforeBuf == NULL) + rreBeforeBuf = (char *)malloc(rreBeforeBufSize); + else + rreBeforeBuf = (char *)realloc(rreBeforeBuf, rreBeforeBufSize); + } + + if (rreAfterBufSize < maxRawSize) { + rreAfterBufSize = maxRawSize; + if (rreAfterBuf == NULL) + rreAfterBuf = (char *)malloc(rreAfterBufSize); + else + rreAfterBuf = (char *)realloc(rreAfterBuf, rreAfterBufSize); + } + + (*cl->translateFn)(cl->translateLookupTable,&(cl->screen->rfbServerFormat), + &cl->format, fbptr, rreBeforeBuf, + cl->screen->paddedWidthInBytes, w, h); + + switch (cl->format.bitsPerPixel) { + case 8: + nSubrects = subrectEncode8((CARD8 *)rreBeforeBuf, w, h); + break; + case 16: + nSubrects = subrectEncode16((CARD16 *)rreBeforeBuf, w, h); + break; + case 32: + nSubrects = subrectEncode32((CARD32 *)rreBeforeBuf, w, h); + break; + default: + rfbLog("getBgColour: bpp %d?\n",cl->format.bitsPerPixel); + exit(1); + } + + if (nSubrects < 0) { + + /* RRE encoding was too large, use raw */ + + return rfbSendRectEncodingRaw(cl, x, y, w, h); + } + + cl->rfbRectanglesSent[rfbEncodingCoRRE]++; + cl->rfbBytesSent[rfbEncodingCoRRE] += (sz_rfbFramebufferUpdateRectHeader + + sz_rfbRREHeader + rreAfterBufLen); + + if (cl->ublen + sz_rfbFramebufferUpdateRectHeader + sz_rfbRREHeader + > UPDATE_BUF_SIZE) + { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + rect.r.x = Swap16IfLE(x); + rect.r.y = Swap16IfLE(y); + rect.r.w = Swap16IfLE(w); + rect.r.h = Swap16IfLE(h); + rect.encoding = Swap32IfLE(rfbEncodingCoRRE); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect, + sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + hdr.nSubrects = Swap32IfLE(nSubrects); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&hdr, sz_rfbRREHeader); + cl->ublen += sz_rfbRREHeader; + + for (i = 0; i < rreAfterBufLen;) { + + int bytesToCopy = UPDATE_BUF_SIZE - cl->ublen; + + if (i + bytesToCopy > rreAfterBufLen) { + bytesToCopy = rreAfterBufLen - i; + } + + memcpy(&cl->updateBuf[cl->ublen], &rreAfterBuf[i], bytesToCopy); + + cl->ublen += bytesToCopy; + i += bytesToCopy; + + if (cl->ublen == UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + } + + return TRUE; +} + + + +/* + * subrectEncode() encodes the given multicoloured rectangle as a background + * colour overwritten by single-coloured rectangles. It returns the number + * of subrectangles in the encoded buffer, or -1 if subrect encoding won't + * fit in the buffer. It puts the encoded rectangles in rreAfterBuf. The + * single-colour rectangle partition is not optimal, but does find the biggest + * horizontal or vertical rectangle top-left anchored to each consecutive + * coordinate position. + * + * The coding scheme is simply [<bgcolour><subrect><subrect>...] where each + * <subrect> is [<colour><x><y><w><h>]. + */ + +#define DEFINE_SUBRECT_ENCODE(bpp) \ +static int \ +subrectEncode##bpp(data,w,h) \ + CARD##bpp *data; \ + int w; \ + int h; \ +{ \ + CARD##bpp cl; \ + rfbCoRRERectangle subrect; \ + int x,y; \ + int i,j; \ + int hx=0,hy,vx=0,vy; \ + int hyflag; \ + CARD##bpp *seg; \ + CARD##bpp *line; \ + int hw,hh,vw,vh; \ + int thex,they,thew,theh; \ + int numsubs = 0; \ + int newLen; \ + CARD##bpp bg = (CARD##bpp)getBgColour((char*)data,w*h,bpp); \ + \ + *((CARD##bpp*)rreAfterBuf) = bg; \ + \ + rreAfterBufLen = (bpp/8); \ + \ + for (y=0; y<h; y++) { \ + line = data+(y*w); \ + for (x=0; x<w; x++) { \ + if (line[x] != bg) { \ + cl = line[x]; \ + hy = y-1; \ + hyflag = 1; \ + for (j=y; j<h; j++) { \ + seg = data+(j*w); \ + if (seg[x] != cl) {break;} \ + i = x; \ + while ((seg[i] == cl) && (i < w)) i += 1; \ + i -= 1; \ + if (j == y) vx = hx = i; \ + if (i < vx) vx = i; \ + if ((hyflag > 0) && (i >= hx)) {hy += 1;} else {hyflag = 0;} \ + } \ + vy = j-1; \ + \ + /* We now have two possible subrects: (x,y,hx,hy) and (x,y,vx,vy) \ + * We'll choose the bigger of the two. \ + */ \ + hw = hx-x+1; \ + hh = hy-y+1; \ + vw = vx-x+1; \ + vh = vy-y+1; \ + \ + thex = x; \ + they = y; \ + \ + if ((hw*hh) > (vw*vh)) { \ + thew = hw; \ + theh = hh; \ + } else { \ + thew = vw; \ + theh = vh; \ + } \ + \ + subrect.x = thex; \ + subrect.y = they; \ + subrect.w = thew; \ + subrect.h = theh; \ + \ + newLen = rreAfterBufLen + (bpp/8) + sz_rfbCoRRERectangle; \ + if ((newLen > (w * h * (bpp/8))) || (newLen > rreAfterBufSize)) \ + return -1; \ + \ + numsubs += 1; \ + *((CARD##bpp*)(rreAfterBuf + rreAfterBufLen)) = cl; \ + rreAfterBufLen += (bpp/8); \ + memcpy(&rreAfterBuf[rreAfterBufLen],&subrect,sz_rfbCoRRERectangle); \ + rreAfterBufLen += sz_rfbCoRRERectangle; \ + \ + /* \ + * Now mark the subrect as done. \ + */ \ + for (j=they; j < (they+theh); j++) { \ + for (i=thex; i < (thex+thew); i++) { \ + data[j*w+i] = bg; \ + } \ + } \ + } \ + } \ + } \ + \ + return numsubs; \ +} + +DEFINE_SUBRECT_ENCODE(8) +DEFINE_SUBRECT_ENCODE(16) +DEFINE_SUBRECT_ENCODE(32) + + +/* + * getBgColour() gets the most prevalent colour in a byte array. + */ +static CARD32 +getBgColour(data,size,bpp) + char *data; + int size; + int bpp; +{ + +#define NUMCLRS 256 + + static int counts[NUMCLRS]; + int i,j,k; + + int maxcount = 0; + CARD8 maxclr = 0; + + if (bpp != 8) { + if (bpp == 16) { + return ((CARD16 *)data)[0]; + } else if (bpp == 32) { + return ((CARD32 *)data)[0]; + } else { + rfbLog("getBgColour: bpp %d?\n",bpp); + exit(1); + } + } + + for (i=0; i<NUMCLRS; i++) { + counts[i] = 0; + } + + for (j=0; j<size; j++) { + k = (int)(((CARD8 *)data)[j]); + if (k >= NUMCLRS) { + rfbLog("getBgColour: unusual colour = %d\n", k); + exit(1); + } + counts[k] += 1; + if (counts[k] > maxcount) { + maxcount = counts[k]; + maxclr = ((CARD8 *)data)[j]; + } + } + + return maxclr; +} diff --git a/krfb/libvncserver/cursor.c b/krfb/libvncserver/cursor.c new file mode 100644 index 00000000..13175118 --- /dev/null +++ b/krfb/libvncserver/cursor.c @@ -0,0 +1,678 @@ +/* + * cursor.c - support for cursor shape updates. + */ + +/* + * Copyright (C) 2000, 2001 Const Kaplinsky. All Rights Reserved. + * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include "rfb.h" + +/* + * Send cursor shape either in X-style format or in client pixel format. + */ + +Bool +rfbSendCursorShape(cl) + rfbClientPtr cl; +{ + rfbCursorPtr pCursor; + rfbFramebufferUpdateRectHeader rect; + rfbXCursorColors colors; + int saved_ublen; + int bitmapRowBytes, maskBytes, dataBytes; + int i, j; + CARD8 *bitmapData; + CARD8 bitmapByte; + + pCursor = cl->screen->getCursorPtr(cl); + /*if(!pCursor) return TRUE;*/ + + if (cl->useRichCursorEncoding) { + if(pCursor && !pCursor->richSource) + MakeRichCursorFromXCursor(cl->screen,pCursor); + rect.encoding = Swap32IfLE(rfbEncodingRichCursor); + } else { + if(pCursor && !pCursor->source) + MakeXCursorFromRichCursor(cl->screen,pCursor); + rect.encoding = Swap32IfLE(rfbEncodingXCursor); + } + + /* If there is no cursor, send update with empty cursor data. */ + + if ( pCursor && pCursor->width == 1 && + pCursor->height == 1 && + pCursor->mask[0] == 0 ) { + pCursor = NULL; + } + + if (pCursor == NULL) { + if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE ) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + rect.r.x = rect.r.y = 0; + rect.r.w = rect.r.h = 0; + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect, + sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + cl->rfbCursorBytesSent += sz_rfbFramebufferUpdateRectHeader; + cl->rfbCursorUpdatesSent++; + + if (!rfbSendUpdateBuf(cl)) + return FALSE; + + return TRUE; + } + + /* Calculate data sizes. */ + + bitmapRowBytes = (pCursor->width + 7) / 8; + maskBytes = bitmapRowBytes * pCursor->height; + dataBytes = (cl->useRichCursorEncoding) ? + (pCursor->width * pCursor->height * + (cl->format.bitsPerPixel / 8)) : maskBytes; + + /* Send buffer contents if needed. */ + + if ( cl->ublen + sz_rfbFramebufferUpdateRectHeader + + sz_rfbXCursorColors + maskBytes + dataBytes > UPDATE_BUF_SIZE ) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + if ( cl->ublen + sz_rfbFramebufferUpdateRectHeader + + sz_rfbXCursorColors + maskBytes + dataBytes > UPDATE_BUF_SIZE ) { + return FALSE; /* FIXME. */ + } + + saved_ublen = cl->ublen; + + /* Prepare rectangle header. */ + + rect.r.x = Swap16IfLE(pCursor->xhot); + rect.r.y = Swap16IfLE(pCursor->yhot); + rect.r.w = Swap16IfLE(pCursor->width); + rect.r.h = Swap16IfLE(pCursor->height); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + /* Prepare actual cursor data (depends on encoding used). */ + + if (!cl->useRichCursorEncoding) { + /* XCursor encoding. */ + colors.foreRed = (char)(pCursor->foreRed >> 8); + colors.foreGreen = (char)(pCursor->foreGreen >> 8); + colors.foreBlue = (char)(pCursor->foreBlue >> 8); + colors.backRed = (char)(pCursor->backRed >> 8); + colors.backGreen = (char)(pCursor->backGreen >> 8); + colors.backBlue = (char)(pCursor->backBlue >> 8); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&colors, sz_rfbXCursorColors); + cl->ublen += sz_rfbXCursorColors; + + bitmapData = (CARD8 *)pCursor->source; + + for (i = 0; i < pCursor->height; i++) { + for (j = 0; j < bitmapRowBytes; j++) { + bitmapByte = bitmapData[i * bitmapRowBytes + j]; + cl->updateBuf[cl->ublen++] = (char)bitmapByte; + } + } + } else { + /* RichCursor encoding. */ + int bpp1=cl->screen->rfbServerFormat.bitsPerPixel/8, + bpp2=cl->format.bitsPerPixel/8; + (*cl->translateFn)(cl->translateLookupTable, + &(cl->screen->rfbServerFormat), + &cl->format, pCursor->richSource, + &cl->updateBuf[cl->ublen], + pCursor->width*bpp1, pCursor->width, pCursor->height); + + cl->ublen += pCursor->width*bpp2*pCursor->height; + } + + /* Prepare transparency mask. */ + + bitmapData = (CARD8 *)pCursor->mask; + + for (i = 0; i < pCursor->height; i++) { + for (j = 0; j < bitmapRowBytes; j++) { + bitmapByte = bitmapData[i * bitmapRowBytes + j]; + cl->updateBuf[cl->ublen++] = (char)bitmapByte; + } + } + + /* Send everything we have prepared in the cl->updateBuf[]. */ + + cl->rfbCursorBytesSent += (cl->ublen - saved_ublen); + cl->rfbCursorUpdatesSent++; + + if (!rfbSendUpdateBuf(cl)) + return FALSE; + + return TRUE; +} + +/* + * Send soft cursor state and possibly image + */ + +Bool +rfbSendSoftCursor(rfbClientPtr cl, Bool cursorWasChanged) +{ + rfbCursorPtr pCursor; + rfbSoftCursorSetImage setImage; + rfbSoftCursorMove moveMsg; + rfbFramebufferUpdateRectHeader rect; + int saved_ublen, i, scOindex, scNindex, nlen, imgLen; + + pCursor = cl->screen->getCursorPtr(cl); + if (cursorWasChanged && cl->softSource) { + free(cl->softSource); + cl->softSource = 0; + } + if (!cl->softSource) + MakeSoftCursor(cl, pCursor); + + imgLen = cl->softSourceLen; + + /* If there is no cursor, send update with empty cursor data. */ + + if ( pCursor && pCursor->width <= 1 && + pCursor->height <= 1 && + pCursor->mask[0] == 0 ) { + pCursor = NULL; + } + + setImage.imageLength = Swap16IfLE(imgLen); + + scOindex = -1; + scNindex = -1; + for (i = 0; i < rfbSoftCursorMaxImages; i++) { + rfbSoftCursorSetImage *scsi = cl->softCursorImages[i]; + if (!scsi) { + scNindex = i; + break; + } + + setImage.imageIndex = scsi->imageIndex; + if (!memcmp((char*)scsi, (char*)&setImage, sizeof(setImage))) { + if (imgLen && !memcmp(((char*)scsi)+sizeof(rfbSoftCursorSetImage), + cl->softSource, + imgLen)) { + scOindex = i; + break; + } + } + } + + nlen = 0; + if (scOindex < 0) { + if (scNindex < 0) { + scNindex = cl->nextUnusedSoftCursorImage; + cl->nextUnusedSoftCursorImage = (cl->nextUnusedSoftCursorImage+1) + % rfbSoftCursorMaxImages; + free(cl->softCursorImages[scNindex]); + } + + scOindex = scNindex; + setImage.imageIndex = scNindex + rfbSoftCursorSetIconOffset; + nlen = sizeof(setImage) + imgLen; + cl->softCursorImages[scNindex] = calloc(1, nlen); + memcpy((char*)cl->softCursorImages[scNindex], (char*)&setImage, + sizeof(setImage)); + if (imgLen) + memcpy(((char*)cl->softCursorImages[scNindex])+sizeof(setImage), + (char*)cl->softSource, imgLen); + } + + /* Send buffer contents if needed. */ + + if ( cl->ublen + sizeof(rfbSoftCursorMove) + + ((scNindex >= 0 && cursorWasChanged) ? + (sizeof(rfbSoftCursorSetImage) + imgLen) : 0) > UPDATE_BUF_SIZE) { + + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + saved_ublen = cl->ublen; + + if (scNindex >= 0 && cursorWasChanged) { + rect.encoding = Swap32IfLE(rfbEncodingSoftCursor); + if (pCursor) { + rect.r.x = Swap16IfLE(pCursor->xhot); + rect.r.y = Swap16IfLE(pCursor->yhot); + rect.r.w = Swap16IfLE(pCursor->width); + rect.r.h = Swap16IfLE(pCursor->height); + } + else { + rect.r.x = 0; + rect.r.y = 0; + rect.r.w = 0; + rect.r.h = 0; + } + + memcpy(&cl->updateBuf[cl->ublen], + (char *)&rect,sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + memcpy(&cl->updateBuf[cl->ublen], (char*)cl->softCursorImages[scNindex], nlen); + cl->ublen += nlen; + cl->rfbCursorUpdatesSent++; + } + + rect.encoding = Swap32IfLE(rfbEncodingSoftCursor); + rect.r.x = 0; + rect.r.y = 0; + rect.r.w = Swap16IfLE(cl->screen->cursorX); + rect.r.h = Swap16IfLE(cl->screen->cursorY); + moveMsg.imageIndex = scOindex; + moveMsg.buttonMask = 0; /* todo */ + memcpy(&cl->updateBuf[cl->ublen], + (char *)&rect,sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + memcpy(&cl->updateBuf[cl->ublen], (char*)&moveMsg, sizeof(moveMsg)); + cl->ublen += sizeof(moveMsg); + + /* Send everything we have prepared in the cl->updateBuf[]. */ + + cl->rfbCursorBytesSent += (cl->ublen - saved_ublen); + cl->rfbCursorUpdatesSent++; + + return rfbSendUpdateBuf(cl); +} + +/* conversion routine for predefined cursors in LSB order */ +unsigned char rfbReverseByte[0x100] = { + /* copied from Xvnc/lib/font/util/utilbitmap.c */ + 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, + 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, + 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, + 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, + 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, + 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, + 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, + 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, + 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, + 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, + 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, + 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, + 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, + 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, + 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, + 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, + 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, + 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, + 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, + 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, + 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, + 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, + 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, + 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, + 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, + 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, + 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, + 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, + 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, + 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, + 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, + 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff +}; + +void rfbConvertLSBCursorBitmapOrMask(int width,int height,unsigned char* bitmap) +{ + int i,t=(width+7)/8*height; + for(i=0;i<t;i++) + bitmap[i]=rfbReverseByte[(int)bitmap[i]]; +} + +/* Cursor creation. You "paint" a cursor and let these routines do the work */ + +rfbCursorPtr rfbMakeXCursor(int width,int height,char* cursorString,char* maskString) +{ + int i,j,w=(width+7)/8; + rfbCursorPtr cursor = (rfbCursorPtr)calloc(1,sizeof(rfbCursor)); + char* cp; + unsigned char bit; + + cursor->width=width; + cursor->height=height; + /*cursor->backRed=cursor->backGreen=cursor->backBlue=0xffff;*/ + cursor->foreRed=cursor->foreGreen=cursor->foreBlue=0xffff; + + cursor->source = (unsigned char*)calloc(w,height); + for(j=0,cp=cursorString;j<height;j++) + for(i=0,bit=0x80;i<width;i++,bit=(bit&1)?0x80:bit>>1,cp++) + if(*cp!=' ') cursor->source[j*w+i/8]|=bit; + + if(maskString) { + cursor->mask = (unsigned char*)calloc(w,height); + for(j=0,cp=maskString;j<height;j++) + for(i=0,bit=0x80;i<width;i++,bit=(bit&1)?0x80:bit>>1,cp++) + if(*cp!=' ') cursor->mask[j*w+i/8]|=bit; + } else + cursor->mask = (unsigned char*)rfbMakeMaskForXCursor(width,height,cursor->source); + + return(cursor); +} + +char* rfbMakeMaskForXCursor(int width,int height,char* source) +{ + int i,j,w=(width+7)/8; + char* mask=(char*)calloc(w,height); + unsigned char c; + + for(j=0;j<height;j++) + for(i=w-1;i>=0;i--) { + c=source[j*w+i]; + if(j>0) c|=source[(j-1)*w+i]; + if(j<height-1) c|=source[(j+1)*w+i]; + + if(i>0 && (c&0x80)) + mask[j*w+i-1]|=0x01; + if(i<w-1 && (c&0x01)) + mask[j*w+i+1]|=0x80; + + mask[j*w+i]|=(c<<1)|c|(c>>1); + } + + return(mask); +} + +void rfbFreeCursor(rfbCursorPtr cursor) +{ + if(cursor) { + if(cursor->richSource) + free(cursor->richSource); + free(cursor->source); + free(cursor->mask); + free(cursor); + } + +} + +/* background and foregroud colour have to be set beforehand */ +void MakeXCursorFromRichCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor) +{ + rfbPixelFormat* format=&rfbScreen->rfbServerFormat; + int i,j,w=(cursor->width+7)/8,bpp=format->bitsPerPixel/8, + width=cursor->width*bpp; + CARD32 background; + char *back=(char*)&background; + unsigned char bit; + + cursor->source=(unsigned char*)calloc(w,cursor->height); + + if(format->bigEndian) + back+=4-bpp; + + background=cursor->backRed<<format->redShift| + cursor->backGreen<<format->greenShift|cursor->backBlue<<format->blueShift; + + for(j=0;j<cursor->height;j++) + for(i=0,bit=0x80;i<cursor->width;i++,bit=(bit&1)?0x80:bit>>1) + if(memcmp(cursor->richSource+j*width+i*bpp,back,bpp)) + cursor->source[j*w+i/8]|=bit; +} + +void MakeRichCursorFromXCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor) +{ + rfbPixelFormat* format=&rfbScreen->rfbServerFormat; + int i,j,w=(cursor->width+7)/8,bpp=format->bitsPerPixel/8; + CARD32 background,foreground; + char *back=(char*)&background,*fore=(char*)&foreground; + unsigned char *cp; + unsigned char bit; + + cp=cursor->richSource=(unsigned char*)calloc(cursor->width*bpp,cursor->height); + + if(format->bigEndian) { + back+=4-bpp; + fore+=4-bpp; + } + + background=cursor->backRed<<format->redShift| + cursor->backGreen<<format->greenShift|cursor->backBlue<<format->blueShift; + foreground=cursor->foreRed<<format->redShift| + cursor->foreGreen<<format->greenShift|cursor->foreBlue<<format->blueShift; + + for(j=0;j<cursor->height;j++) + for(i=0,bit=0x80;i<cursor->height;i++,bit=(bit&1)?0x80:bit>>1,cp+=bpp) + if(cursor->source[j*w+i/8]&bit) memcpy(cp,fore,bpp); + else memcpy(cp,back,bpp); +} + +void MakeSoftCursor(rfbClientPtr cl, rfbCursorPtr cursor) +{ + int w = (cursor->width+7)/8; + int bpp = cl->format.bitsPerPixel/8; + int sbpp= cl->screen->rfbServerFormat.bitsPerPixel/8; + unsigned char *cp, *sp, *translatedCursor; + int state; /* 0 = transparent, 1 otherwise */ + CARD8 *counter; + unsigned char bit; + int i,j; + + if ((!cursor) || (cl->softSource)) { + cl->softSourceLen = 0; + return; + } + + if (!cursor->richSource) + MakeRichCursorFromXCursor(cl->screen, cursor); + + sp = malloc(cursor->width*bpp*cursor->height); + + (*cl->translateFn)(cl->translateLookupTable, + &(cl->screen->rfbServerFormat), + &cl->format, cursor->richSource, + sp, cursor->width*sbpp, + cursor->width, cursor->height); + + translatedCursor = sp; + cp=cl->softSource=(unsigned char*)calloc(cursor->width*(bpp+2),cursor->height); + + state = 0; + counter = cp++; + *counter = 0; + + for(j=0;j<cursor->height;j++) + for(i=0,bit=0x80;i<cursor->width;i++,bit=(bit&1)?0x80:bit>>1) + if(cursor->mask[j*w+i/8]&bit) { + if (state) { + memcpy(cp,sp,bpp); + cp += bpp; + sp += bpp; + (*counter)++; + if (*counter == 255) { + state = 0; + counter = cp++; + *counter = 0; + } + } + else { + state = 1; + counter = cp++; + *counter = 1; + memcpy(cp,sp,bpp); + cp += bpp; + sp += bpp; + } + } + else { + if (!state) { + (*counter)++; + if (*counter == 255) { + state = 1; + counter = cp++; + *counter = 0; + } + } + else { + state = 0; + counter = cp++; + *counter = 1; + } + sp += bpp; + } + + free(translatedCursor); + cl->softSourceLen = cp - cl->softSource; +} + + +/* functions to draw/hide cursor directly in the frame buffer */ + +void rfbUndrawCursor(rfbScreenInfoPtr s) +{ + rfbCursorPtr c=s->cursor; + int j,x1,x2,y1,y2,bpp=s->rfbServerFormat.bitsPerPixel/8, + rowstride=s->paddedWidthInBytes; + LOCK(s->cursorMutex); + if(!s->cursorIsDrawn) { + UNLOCK(s->cursorMutex); + return; + } + + /* restore what is under the cursor */ + x1=s->cursorX-c->xhot; + x2=x1+c->width; + if(x1<0) x1=0; + if(x2>=s->width) x2=s->width-1; + x2-=x1; if(x2<=0) { + UNLOCK(s->cursorMutex); + return; + } + y1=s->cursorY-c->yhot; + y2=y1+c->height; + if(y1<0) y1=0; + if(y2>=s->height) y2=s->height-1; + y2-=y1; if(y2<=0) { + UNLOCK(s->cursorMutex); + return; + } + + /* get saved data */ + for(j=0;j<y2;j++) + memcpy(s->frameBuffer+(y1+j)*rowstride+x1*bpp, + s->underCursorBuffer+j*x2*bpp, + x2*bpp); + + rfbMarkRectAsModified(s,x1,y1,x1+x2,y1+y2); + s->cursorIsDrawn = FALSE; + UNLOCK(s->cursorMutex); +} + +void rfbDrawCursor(rfbScreenInfoPtr s) +{ + rfbCursorPtr c=s->cursor; + int i,j,x1,x2,y1,y2,i1,j1,bpp=s->rfbServerFormat.bitsPerPixel/8, + rowstride=s->paddedWidthInBytes, + bufSize,w; + if(!c) return; + LOCK(s->cursorMutex); + if(s->cursorIsDrawn) { + /* is already drawn */ + UNLOCK(s->cursorMutex); + return; + } + bufSize=c->width*c->height*bpp; + w=(c->width+7)/8; + if(s->underCursorBufferLen<bufSize) { + if(s->underCursorBuffer!=NULL) + free(s->underCursorBuffer); + s->underCursorBuffer=malloc(bufSize); + s->underCursorBufferLen=bufSize; + } + /* save what is under the cursor */ + i1=j1=0; /* offset in cursor */ + x1=s->cursorX-c->xhot; + x2=x1+c->width; + if(x1<0) { i1=-x1; x1=0; } + if(x2>=s->width) x2=s->width-1; + x2-=x1; if(x2<=0) { + UNLOCK(s->cursorMutex); + return; /* nothing to do */ + } + y1=s->cursorY-c->yhot; + y2=y1+c->height; + if(y1<0) { j1=-y1; y1=0; } + if(y2>=s->height) y2=s->height-1; + y2-=y1; if(y2<=0) { + UNLOCK(s->cursorMutex); + return; /* nothing to do */ + } + + /* save data */ + for(j=0;j<y2;j++) + memcpy(s->underCursorBuffer+j*x2*bpp, + s->frameBuffer+(y1+j)*rowstride+x1*bpp, + x2*bpp); + + if(!c->richSource) + MakeRichCursorFromXCursor(s,c); + + /* now the cursor has to be drawn */ + for(j=0;j<y2;j++) + for(i=0;i<x2;i++) + if((c->mask[(j+j1)*w+(i+i1)/8]<<((i+i1)&7))&0x80) + memcpy(s->frameBuffer+(j+y1)*rowstride+(i+x1)*bpp, + c->richSource+(j+j1)*c->width*bpp+(i+i1)*bpp,bpp); + + + rfbMarkRectAsModified(s,x1,y1,x1+x2,y1+y2); + s->cursorIsDrawn = TRUE; + UNLOCK(s->cursorMutex); +} + +/* for debugging */ + +void rfbPrintXCursor(rfbCursorPtr cursor) +{ + int i,i1,j,w=(cursor->width+7)/8; + unsigned char bit; + for(j=0;j<cursor->height;j++) { + for(i=0,i1=0,bit=0x80;i1<cursor->width;i1++,i+=(bit&1)?1:0,bit=(bit&1)?0x80:bit>>1) + if(cursor->source[j*w+i]&bit) putchar('#'); else putchar(' '); + putchar(':'); + for(i=0,i1=0,bit=0x80;i1<cursor->width;i1++,i+=(bit&1)?1:0,bit=(bit&1)?0x80:bit>>1) + if(cursor->mask[j*w+i]&bit) putchar('#'); else putchar(' '); + putchar('\n'); + } +} + +extern void rfbSetCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr c,Bool freeOld) +{ + LOCK(rfbScreen->cursorMutex); + while(rfbScreen->cursorIsDrawn) { + UNLOCK(rfbScreen->cursorMutex); + rfbUndrawCursor(rfbScreen); + LOCK(rfbScreen->cursorMutex); + } + + if(freeOld && rfbScreen->cursor) + rfbFreeCursor(rfbScreen->cursor); + + rfbScreen->cursor = c; + + UNLOCK(rfbScreen->cursorMutex); +} diff --git a/krfb/libvncserver/cutpaste.c b/krfb/libvncserver/cutpaste.c new file mode 100644 index 00000000..7dcefe7f --- /dev/null +++ b/krfb/libvncserver/cutpaste.c @@ -0,0 +1,39 @@ +/* + * cutpaste.c - routines to deal with cut & paste buffers / selection. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include "rfb.h" + + +/* + * rfbSetXCutText sets the cut buffer to be the given string. We also clear + * the primary selection. Ideally we'd like to set it to the same thing, but I + * can't work out how to do that without some kind of helper X client. + */ + +void rfbGotXCutText(rfbScreenInfoPtr rfbScreen, char *str, int len) +{ + rfbSendServerCutText(rfbScreen, str, len); +} diff --git a/krfb/libvncserver/d3des.c b/krfb/libvncserver/d3des.c new file mode 100644 index 00000000..4994afb1 --- /dev/null +++ b/krfb/libvncserver/d3des.c @@ -0,0 +1,442 @@ +/* + * This is D3DES (V5.09) by Richard Outerbridge with the double and + * triple-length support removed for use in VNC. Also the bytebit[] array + * has been reversed so that the most significant bit in each byte of the + * key is ignored, not the least significant. + * + * These changes are: + * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + */ + +/* D3DES (V5.09) - + * + * A portable, public domain, version of the Data Encryption Standard. + * + * Written with Symantec's THINK (Lightspeed) C by Richard Outerbridge. + * Thanks to: Dan Hoey for his excellent Initial and Inverse permutation + * code; Jim Gillogly & Phil Karn for the DES key schedule code; Dennis + * Ferguson, Eric Young and Dana How for comparing notes; and Ray Lau, + * for humouring me on. + * + * Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge. + * (GEnie : OUTER; CIS : [71755,204]) Graven Imagery, 1992. + */ + +#include "d3des.h" + +static void scrunch(unsigned char *, unsigned long *); +static void unscrun(unsigned long *, unsigned char *); +static void desfunc(unsigned long *, unsigned long *); +static void cookey(unsigned long *); + +static unsigned long KnL[32] = { 0L }; +/* +static unsigned long KnR[32] = { 0L }; +static unsigned long Kn3[32] = { 0L }; +static unsigned char Df_Key[24] = { + 0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef, + 0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10, + 0x89,0xab,0xcd,0xef,0x01,0x23,0x45,0x67 }; +*/ + +static unsigned short bytebit[8] = { + 01, 02, 04, 010, 020, 040, 0100, 0200 }; + +static unsigned long bigbyte[24] = { + 0x800000L, 0x400000L, 0x200000L, 0x100000L, + 0x80000L, 0x40000L, 0x20000L, 0x10000L, + 0x8000L, 0x4000L, 0x2000L, 0x1000L, + 0x800L, 0x400L, 0x200L, 0x100L, + 0x80L, 0x40L, 0x20L, 0x10L, + 0x8L, 0x4L, 0x2L, 0x1L }; + +/* Use the key schedule specified in the Standard (ANSI X3.92-1981). */ + +static unsigned char pc1[56] = { + 56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17, + 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35, + 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, + 13, 5, 60, 52, 44, 36, 28, 20, 12, 4, 27, 19, 11, 3 }; + +static unsigned char totrot[16] = { + 1,2,4,6,8,10,12,14,15,17,19,21,23,25,27,28 }; + +static unsigned char pc2[48] = { + 13, 16, 10, 23, 0, 4, 2, 27, 14, 5, 20, 9, + 22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1, + 40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47, + 43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31 }; + +void deskey(key, edf) /* Thanks to James Gillogly & Phil Karn! */ +unsigned char *key; +int edf; +{ + register int i, j, l, m, n; + unsigned char pc1m[56], pcr[56]; + unsigned long kn[32]; + + for ( j = 0; j < 56; j++ ) { + l = pc1[j]; + m = l & 07; + pc1m[j] = (key[l >> 3] & bytebit[m]) ? 1 : 0; + } + for( i = 0; i < 16; i++ ) { + if( edf == DE1 ) m = (15 - i) << 1; + else m = i << 1; + n = m + 1; + kn[m] = kn[n] = 0L; + for( j = 0; j < 28; j++ ) { + l = j + totrot[i]; + if( l < 28 ) pcr[j] = pc1m[l]; + else pcr[j] = pc1m[l - 28]; + } + for( j = 28; j < 56; j++ ) { + l = j + totrot[i]; + if( l < 56 ) pcr[j] = pc1m[l]; + else pcr[j] = pc1m[l - 28]; + } + for( j = 0; j < 24; j++ ) { + if( pcr[pc2[j]] ) kn[m] |= bigbyte[j]; + if( pcr[pc2[j+24]] ) kn[n] |= bigbyte[j]; + } + } + cookey(kn); + return; + } + +static void cookey(raw1) +register unsigned long *raw1; +{ + register unsigned long *cook, *raw0; + unsigned long dough[32]; + register int i; + + cook = dough; + for( i = 0; i < 16; i++, raw1++ ) { + raw0 = raw1++; + *cook = (*raw0 & 0x00fc0000L) << 6; + *cook |= (*raw0 & 0x00000fc0L) << 10; + *cook |= (*raw1 & 0x00fc0000L) >> 10; + *cook++ |= (*raw1 & 0x00000fc0L) >> 6; + *cook = (*raw0 & 0x0003f000L) << 12; + *cook |= (*raw0 & 0x0000003fL) << 16; + *cook |= (*raw1 & 0x0003f000L) >> 4; + *cook++ |= (*raw1 & 0x0000003fL); + } + usekey(dough); + return; + } + +void cpkey(into) +register unsigned long *into; +{ + register unsigned long *from, *endp; + + from = KnL, endp = &KnL[32]; + while( from < endp ) *into++ = *from++; + return; + } + +void usekey(from) +register unsigned long *from; +{ + register unsigned long *to, *endp; + + to = KnL, endp = &KnL[32]; + while( to < endp ) *to++ = *from++; + return; + } + +void des(inblock, outblock) +unsigned char *inblock, *outblock; +{ + unsigned long work[2]; + + scrunch(inblock, work); + desfunc(work, KnL); + unscrun(work, outblock); + return; + } + +static void scrunch(outof, into) +register unsigned char *outof; +register unsigned long *into; +{ + *into = (*outof++ & 0xffL) << 24; + *into |= (*outof++ & 0xffL) << 16; + *into |= (*outof++ & 0xffL) << 8; + *into++ |= (*outof++ & 0xffL); + *into = (*outof++ & 0xffL) << 24; + *into |= (*outof++ & 0xffL) << 16; + *into |= (*outof++ & 0xffL) << 8; + *into |= (*outof & 0xffL); + return; + } + +static void unscrun(outof, into) +register unsigned long *outof; +register unsigned char *into; +{ + *into++ = (unsigned char)((*outof >> 24) & 0xffL); + *into++ = (unsigned char)((*outof >> 16) & 0xffL); + *into++ = (unsigned char)((*outof >> 8) & 0xffL); + *into++ = (unsigned char)( *outof++ & 0xffL); + *into++ = (unsigned char)((*outof >> 24) & 0xffL); + *into++ = (unsigned char)((*outof >> 16) & 0xffL); + *into++ = (unsigned char)((*outof >> 8) & 0xffL); + *into = (unsigned char)( *outof & 0xffL); + return; + } + +static unsigned long SP1[64] = { + 0x01010400L, 0x00000000L, 0x00010000L, 0x01010404L, + 0x01010004L, 0x00010404L, 0x00000004L, 0x00010000L, + 0x00000400L, 0x01010400L, 0x01010404L, 0x00000400L, + 0x01000404L, 0x01010004L, 0x01000000L, 0x00000004L, + 0x00000404L, 0x01000400L, 0x01000400L, 0x00010400L, + 0x00010400L, 0x01010000L, 0x01010000L, 0x01000404L, + 0x00010004L, 0x01000004L, 0x01000004L, 0x00010004L, + 0x00000000L, 0x00000404L, 0x00010404L, 0x01000000L, + 0x00010000L, 0x01010404L, 0x00000004L, 0x01010000L, + 0x01010400L, 0x01000000L, 0x01000000L, 0x00000400L, + 0x01010004L, 0x00010000L, 0x00010400L, 0x01000004L, + 0x00000400L, 0x00000004L, 0x01000404L, 0x00010404L, + 0x01010404L, 0x00010004L, 0x01010000L, 0x01000404L, + 0x01000004L, 0x00000404L, 0x00010404L, 0x01010400L, + 0x00000404L, 0x01000400L, 0x01000400L, 0x00000000L, + 0x00010004L, 0x00010400L, 0x00000000L, 0x01010004L }; + +static unsigned long SP2[64] = { + 0x80108020L, 0x80008000L, 0x00008000L, 0x00108020L, + 0x00100000L, 0x00000020L, 0x80100020L, 0x80008020L, + 0x80000020L, 0x80108020L, 0x80108000L, 0x80000000L, + 0x80008000L, 0x00100000L, 0x00000020L, 0x80100020L, + 0x00108000L, 0x00100020L, 0x80008020L, 0x00000000L, + 0x80000000L, 0x00008000L, 0x00108020L, 0x80100000L, + 0x00100020L, 0x80000020L, 0x00000000L, 0x00108000L, + 0x00008020L, 0x80108000L, 0x80100000L, 0x00008020L, + 0x00000000L, 0x00108020L, 0x80100020L, 0x00100000L, + 0x80008020L, 0x80100000L, 0x80108000L, 0x00008000L, + 0x80100000L, 0x80008000L, 0x00000020L, 0x80108020L, + 0x00108020L, 0x00000020L, 0x00008000L, 0x80000000L, + 0x00008020L, 0x80108000L, 0x00100000L, 0x80000020L, + 0x00100020L, 0x80008020L, 0x80000020L, 0x00100020L, + 0x00108000L, 0x00000000L, 0x80008000L, 0x00008020L, + 0x80000000L, 0x80100020L, 0x80108020L, 0x00108000L }; + +static unsigned long SP3[64] = { + 0x00000208L, 0x08020200L, 0x00000000L, 0x08020008L, + 0x08000200L, 0x00000000L, 0x00020208L, 0x08000200L, + 0x00020008L, 0x08000008L, 0x08000008L, 0x00020000L, + 0x08020208L, 0x00020008L, 0x08020000L, 0x00000208L, + 0x08000000L, 0x00000008L, 0x08020200L, 0x00000200L, + 0x00020200L, 0x08020000L, 0x08020008L, 0x00020208L, + 0x08000208L, 0x00020200L, 0x00020000L, 0x08000208L, + 0x00000008L, 0x08020208L, 0x00000200L, 0x08000000L, + 0x08020200L, 0x08000000L, 0x00020008L, 0x00000208L, + 0x00020000L, 0x08020200L, 0x08000200L, 0x00000000L, + 0x00000200L, 0x00020008L, 0x08020208L, 0x08000200L, + 0x08000008L, 0x00000200L, 0x00000000L, 0x08020008L, + 0x08000208L, 0x00020000L, 0x08000000L, 0x08020208L, + 0x00000008L, 0x00020208L, 0x00020200L, 0x08000008L, + 0x08020000L, 0x08000208L, 0x00000208L, 0x08020000L, + 0x00020208L, 0x00000008L, 0x08020008L, 0x00020200L }; + +static unsigned long SP4[64] = { + 0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, + 0x00802080L, 0x00800081L, 0x00800001L, 0x00002001L, + 0x00000000L, 0x00802000L, 0x00802000L, 0x00802081L, + 0x00000081L, 0x00000000L, 0x00800080L, 0x00800001L, + 0x00000001L, 0x00002000L, 0x00800000L, 0x00802001L, + 0x00000080L, 0x00800000L, 0x00002001L, 0x00002080L, + 0x00800081L, 0x00000001L, 0x00002080L, 0x00800080L, + 0x00002000L, 0x00802080L, 0x00802081L, 0x00000081L, + 0x00800080L, 0x00800001L, 0x00802000L, 0x00802081L, + 0x00000081L, 0x00000000L, 0x00000000L, 0x00802000L, + 0x00002080L, 0x00800080L, 0x00800081L, 0x00000001L, + 0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, + 0x00802081L, 0x00000081L, 0x00000001L, 0x00002000L, + 0x00800001L, 0x00002001L, 0x00802080L, 0x00800081L, + 0x00002001L, 0x00002080L, 0x00800000L, 0x00802001L, + 0x00000080L, 0x00800000L, 0x00002000L, 0x00802080L }; + +static unsigned long SP5[64] = { + 0x00000100L, 0x02080100L, 0x02080000L, 0x42000100L, + 0x00080000L, 0x00000100L, 0x40000000L, 0x02080000L, + 0x40080100L, 0x00080000L, 0x02000100L, 0x40080100L, + 0x42000100L, 0x42080000L, 0x00080100L, 0x40000000L, + 0x02000000L, 0x40080000L, 0x40080000L, 0x00000000L, + 0x40000100L, 0x42080100L, 0x42080100L, 0x02000100L, + 0x42080000L, 0x40000100L, 0x00000000L, 0x42000000L, + 0x02080100L, 0x02000000L, 0x42000000L, 0x00080100L, + 0x00080000L, 0x42000100L, 0x00000100L, 0x02000000L, + 0x40000000L, 0x02080000L, 0x42000100L, 0x40080100L, + 0x02000100L, 0x40000000L, 0x42080000L, 0x02080100L, + 0x40080100L, 0x00000100L, 0x02000000L, 0x42080000L, + 0x42080100L, 0x00080100L, 0x42000000L, 0x42080100L, + 0x02080000L, 0x00000000L, 0x40080000L, 0x42000000L, + 0x00080100L, 0x02000100L, 0x40000100L, 0x00080000L, + 0x00000000L, 0x40080000L, 0x02080100L, 0x40000100L }; + +static unsigned long SP6[64] = { + 0x20000010L, 0x20400000L, 0x00004000L, 0x20404010L, + 0x20400000L, 0x00000010L, 0x20404010L, 0x00400000L, + 0x20004000L, 0x00404010L, 0x00400000L, 0x20000010L, + 0x00400010L, 0x20004000L, 0x20000000L, 0x00004010L, + 0x00000000L, 0x00400010L, 0x20004010L, 0x00004000L, + 0x00404000L, 0x20004010L, 0x00000010L, 0x20400010L, + 0x20400010L, 0x00000000L, 0x00404010L, 0x20404000L, + 0x00004010L, 0x00404000L, 0x20404000L, 0x20000000L, + 0x20004000L, 0x00000010L, 0x20400010L, 0x00404000L, + 0x20404010L, 0x00400000L, 0x00004010L, 0x20000010L, + 0x00400000L, 0x20004000L, 0x20000000L, 0x00004010L, + 0x20000010L, 0x20404010L, 0x00404000L, 0x20400000L, + 0x00404010L, 0x20404000L, 0x00000000L, 0x20400010L, + 0x00000010L, 0x00004000L, 0x20400000L, 0x00404010L, + 0x00004000L, 0x00400010L, 0x20004010L, 0x00000000L, + 0x20404000L, 0x20000000L, 0x00400010L, 0x20004010L }; + +static unsigned long SP7[64] = { + 0x00200000L, 0x04200002L, 0x04000802L, 0x00000000L, + 0x00000800L, 0x04000802L, 0x00200802L, 0x04200800L, + 0x04200802L, 0x00200000L, 0x00000000L, 0x04000002L, + 0x00000002L, 0x04000000L, 0x04200002L, 0x00000802L, + 0x04000800L, 0x00200802L, 0x00200002L, 0x04000800L, + 0x04000002L, 0x04200000L, 0x04200800L, 0x00200002L, + 0x04200000L, 0x00000800L, 0x00000802L, 0x04200802L, + 0x00200800L, 0x00000002L, 0x04000000L, 0x00200800L, + 0x04000000L, 0x00200800L, 0x00200000L, 0x04000802L, + 0x04000802L, 0x04200002L, 0x04200002L, 0x00000002L, + 0x00200002L, 0x04000000L, 0x04000800L, 0x00200000L, + 0x04200800L, 0x00000802L, 0x00200802L, 0x04200800L, + 0x00000802L, 0x04000002L, 0x04200802L, 0x04200000L, + 0x00200800L, 0x00000000L, 0x00000002L, 0x04200802L, + 0x00000000L, 0x00200802L, 0x04200000L, 0x00000800L, + 0x04000002L, 0x04000800L, 0x00000800L, 0x00200002L }; + +static unsigned long SP8[64] = { + 0x10001040L, 0x00001000L, 0x00040000L, 0x10041040L, + 0x10000000L, 0x10001040L, 0x00000040L, 0x10000000L, + 0x00040040L, 0x10040000L, 0x10041040L, 0x00041000L, + 0x10041000L, 0x00041040L, 0x00001000L, 0x00000040L, + 0x10040000L, 0x10000040L, 0x10001000L, 0x00001040L, + 0x00041000L, 0x00040040L, 0x10040040L, 0x10041000L, + 0x00001040L, 0x00000000L, 0x00000000L, 0x10040040L, + 0x10000040L, 0x10001000L, 0x00041040L, 0x00040000L, + 0x00041040L, 0x00040000L, 0x10041000L, 0x00001000L, + 0x00000040L, 0x10040040L, 0x00001000L, 0x00041040L, + 0x10001000L, 0x00000040L, 0x10000040L, 0x10040000L, + 0x10040040L, 0x10000000L, 0x00040000L, 0x10001040L, + 0x00000000L, 0x10041040L, 0x00040040L, 0x10000040L, + 0x10040000L, 0x10001000L, 0x10001040L, 0x00000000L, + 0x10041040L, 0x00041000L, 0x00041000L, 0x00001040L, + 0x00001040L, 0x00040040L, 0x10000000L, 0x10041000L }; + +static void desfunc(block, keys) +register unsigned long *block, *keys; +{ + register unsigned long fval, work, right, leftt; + register int round; + + leftt = block[0]; + right = block[1]; + work = ((leftt >> 4) ^ right) & 0x0f0f0f0fL; + right ^= work; + leftt ^= (work << 4); + work = ((leftt >> 16) ^ right) & 0x0000ffffL; + right ^= work; + leftt ^= (work << 16); + work = ((right >> 2) ^ leftt) & 0x33333333L; + leftt ^= work; + right ^= (work << 2); + work = ((right >> 8) ^ leftt) & 0x00ff00ffL; + leftt ^= work; + right ^= (work << 8); + right = ((right << 1) | ((right >> 31) & 1L)) & 0xffffffffL; + work = (leftt ^ right) & 0xaaaaaaaaL; + leftt ^= work; + right ^= work; + leftt = ((leftt << 1) | ((leftt >> 31) & 1L)) & 0xffffffffL; + + for( round = 0; round < 8; round++ ) { + work = (right << 28) | (right >> 4); + work ^= *keys++; + fval = SP7[ work & 0x3fL]; + fval |= SP5[(work >> 8) & 0x3fL]; + fval |= SP3[(work >> 16) & 0x3fL]; + fval |= SP1[(work >> 24) & 0x3fL]; + work = right ^ *keys++; + fval |= SP8[ work & 0x3fL]; + fval |= SP6[(work >> 8) & 0x3fL]; + fval |= SP4[(work >> 16) & 0x3fL]; + fval |= SP2[(work >> 24) & 0x3fL]; + leftt ^= fval; + work = (leftt << 28) | (leftt >> 4); + work ^= *keys++; + fval = SP7[ work & 0x3fL]; + fval |= SP5[(work >> 8) & 0x3fL]; + fval |= SP3[(work >> 16) & 0x3fL]; + fval |= SP1[(work >> 24) & 0x3fL]; + work = leftt ^ *keys++; + fval |= SP8[ work & 0x3fL]; + fval |= SP6[(work >> 8) & 0x3fL]; + fval |= SP4[(work >> 16) & 0x3fL]; + fval |= SP2[(work >> 24) & 0x3fL]; + right ^= fval; + } + + right = (right << 31) | (right >> 1); + work = (leftt ^ right) & 0xaaaaaaaaL; + leftt ^= work; + right ^= work; + leftt = (leftt << 31) | (leftt >> 1); + work = ((leftt >> 8) ^ right) & 0x00ff00ffL; + right ^= work; + leftt ^= (work << 8); + work = ((leftt >> 2) ^ right) & 0x33333333L; + right ^= work; + leftt ^= (work << 2); + work = ((right >> 16) ^ leftt) & 0x0000ffffL; + leftt ^= work; + right ^= (work << 16); + work = ((right >> 4) ^ leftt) & 0x0f0f0f0fL; + leftt ^= work; + right ^= (work << 4); + *block++ = right; + *block = leftt; + return; + } + +/* Validation sets: + * + * Single-length key, single-length plaintext - + * Key : 0123 4567 89ab cdef + * Plain : 0123 4567 89ab cde7 + * Cipher : c957 4425 6a5e d31d + * + * Double-length key, single-length plaintext - + * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 + * Plain : 0123 4567 89ab cde7 + * Cipher : 7f1d 0a77 826b 8aff + * + * Double-length key, double-length plaintext - + * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 + * Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff + * Cipher : 27a0 8440 406a df60 278f 47cf 42d6 15d7 + * + * Triple-length key, single-length plaintext - + * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567 + * Plain : 0123 4567 89ab cde7 + * Cipher : de0b 7c06 ae5e 0ed5 + * + * Triple-length key, double-length plaintext - + * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567 + * Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff + * Cipher : ad0d 1b30 ac17 cf07 0ed1 1c63 81e4 4de5 + * + * d3des V5.0a rwo 9208.07 18:44 Graven Imagery + **********************************************************************/ diff --git a/krfb/libvncserver/d3des.h b/krfb/libvncserver/d3des.h new file mode 100644 index 00000000..b2f97247 --- /dev/null +++ b/krfb/libvncserver/d3des.h @@ -0,0 +1,56 @@ +#ifndef D3DES_H +#define D3DES_H + +/* + * This is D3DES (V5.09) by Richard Outerbridge with the double and + * triple-length support removed for use in VNC. + * + * These changes are: + * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + */ + +/* d3des.h - + * + * Headers and defines for d3des.c + * Graven Imagery, 1992. + * + * Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge + * (GEnie : OUTER; CIS : [71755,204]) + */ + +#define EN0 0 /* MODE == encrypt */ +#define DE1 1 /* MODE == decrypt */ + +extern void deskey(unsigned char *, int); +/* hexkey[8] MODE + * Sets the internal key register according to the hexadecimal + * key contained in the 8 bytes of hexkey, according to the DES, + * for encryption or decryption according to MODE. + */ + +extern void usekey(unsigned long *); +/* cookedkey[32] + * Loads the internal key register with the data in cookedkey. + */ + +extern void cpkey(unsigned long *); +/* cookedkey[32] + * Copies the contents of the internal key register into the storage + * located at &cookedkey[0]. + */ + +extern void des(unsigned char *, unsigned char *); +/* from[8] to[8] + * Encrypts/Decrypts (according to the key currently loaded in the + * internal key register) one block of eight bytes at address 'from' + * into the block at address 'to'. They can be the same. + */ + +/* d3des.h V5.09 rwo 9208.04 15:06 Graven Imagery + ********************************************************************/ + +#endif diff --git a/krfb/libvncserver/default8x16.h b/krfb/libvncserver/default8x16.h new file mode 100644 index 00000000..d557d478 --- /dev/null +++ b/krfb/libvncserver/default8x16.h @@ -0,0 +1,261 @@ +unsigned char default8x16FontData[4096+1]={ +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x7e,0x81,0xa5,0x81,0x81,0xbd,0x99,0x81,0x81,0x7e,0x00,0x00,0x00,0x00, +0x00,0x00,0x7e,0xff,0xdb,0xff,0xff,0xc3,0xe7,0xff,0xff,0x7e,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x6c,0xfe,0xfe,0xfe,0xfe,0x7c,0x38,0x10,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x10,0x38,0x7c,0xfe,0x7c,0x38,0x10,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x18,0x3c,0x3c,0xe7,0xe7,0xe7,0x18,0x18,0x3c,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x18,0x3c,0x7e,0xff,0xff,0x7e,0x18,0x18,0x3c,0x00,0x00,0x00,0x00, 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+0x00,0x00,0x00,0x00,0x00,0x76,0xdc,0x00,0x76,0xdc,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x38,0x6c,0x6c,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x0f,0x0c,0x0c,0x0c,0x0c,0x0c,0xec,0x6c,0x6c,0x3c,0x1c,0x00,0x00,0x00,0x00, +0x00,0xd8,0x6c,0x6c,0x6c,0x6c,0x6c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x70,0xd8,0x30,0x60,0xc8,0xf8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x7c,0x7c,0x7c,0x7c,0x7c,0x7c,0x7c,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +}; +int default8x16FontMetaData[256*5+1]={ +0,8,16,0,0,16,8,16,0,0,32,8,16,0,0,48,8,16,0,0,64,8,16,0,0,80,8,16,0,0,96,8,16,0,0,112,8,16,0,0,128,8,16,0,0,144,8,16,0,0,160,8,16,0,0,176,8,16,0,0,192,8,16,0,0,208,8,16,0,0,224,8,16,0,0,240,8,16,0,0,256,8,16,0,0,272,8,16,0,0,288,8,16,0,0,304,8,16,0,0,320,8,16,0,0,336,8,16,0,0,352,8,16,0,0,368,8,16,0,0,384,8,16,0,0,400,8,16,0,0,416,8,16,0,0,432,8,16,0,0,448,8,16,0,0,464,8,16,0,0,480,8,16,0,0,496,8,16,0,0,512,8,16,0,0,528,8,16,0,0,544,8,16,0,0,560,8,16,0,0,576,8,16,0,0,592,8,16,0,0,608,8,16,0,0,624,8,16,0,0,640,8,16,0,0,656,8,16,0,0,672,8,16,0,0,688,8,16,0,0,704,8,16,0,0,720,8,16,0,0,736,8,16,0,0,752,8,16,0,0,768,8,16,0,0,784,8,16,0,0,800,8,16,0,0,816,8,16,0,0,832,8,16,0,0,848,8,16,0,0,864,8,16,0,0,880,8,16,0,0,896,8,16,0,0,912,8,16,0,0,928,8,16,0,0,944,8,16,0,0,960,8,16,0,0,976,8,16,0,0,992,8,16,0,0,1008,8,16,0,0,1024,8,16,0,0,1040,8,16,0,0,1056,8,16,0,0,1072,8,16,0,0,1088,8,16,0,0,1104,8,16,0,0,1120,8,16,0,0,1136,8,16,0,0,1152,8,16,0,0,1168,8,16,0,0,1184,8,16,0,0,1200,8,16,0,0,1216,8,16,0,0,1232,8,16,0,0,1248,8,16,0,0,1264,8,16,0,0,1280,8,16,0,0,1296,8,16,0,0,1312,8,16,0,0,1328,8,16,0,0,1344,8,16,0,0,1360,8,16,0,0,1376,8,16,0,0,1392,8,16,0,0,1408,8,16,0,0,1424,8,16,0,0,1440,8,16,0,0,1456,8,16,0,0,1472,8,16,0,0,1488,8,16,0,0,1504,8,16,0,0,1520,8,16,0,0,1536,8,16,0,0,1552,8,16,0,0,1568,8,16,0,0,1584,8,16,0,0,1600,8,16,0,0,1616,8,16,0,0,1632,8,16,0,0,1648,8,16,0,0,1664,8,16,0,0,1680,8,16,0,0,1696,8,16,0,0,1712,8,16,0,0,1728,8,16,0,0,1744,8,16,0,0,1760,8,16,0,0,1776,8,16,0,0,1792,8,16,0,0,1808,8,16,0,0,1824,8,16,0,0,1840,8,16,0,0,1856,8,16,0,0,1872,8,16,0,0,1888,8,16,0,0,1904,8,16,0,0,1920,8,16,0,0,1936,8,16,0,0,1952,8,16,0,0,1968,8,16,0,0,1984,8,16,0,0,2000,8,16,0,0,2016,8,16,0,0,2032,8,16,0,0,2048,8,16,0,0,2064,8,16,0,0,2080,8,16,0,0,2096,8,16,0,0,2112,8,16,0,0,2128,8,16,0,0,2144,8,16,0,0,2160,8,16,0,0,2176,8,16,0,0,2192,8,16,0,0,2208,8,16,0,0,2224,8,16,0,0,2240,8,16,0,0,2256,8,16,0,0,2272,8,16,0,0,2288,8,16,0,0,2304,8,16,0,0,2320,8,16,0,0,2336,8,16,0,0,2352,8,16,0,0,2368,8,16,0,0,2384,8,16,0,0,2400,8,16,0,0,2416,8,16,0,0,2432,8,16,0,0,2448,8,16,0,0,2464,8,16,0,0,2480,8,16,0,0,2496,8,16,0,0,2512,8,16,0,0,2528,8,16,0,0,2544,8,16,0,0,2560,8,16,0,0,2576,8,16,0,0,2592,8,16,0,0,2608,8,16,0,0,2624,8,16,0,0,2640,8,16,0,0,2656,8,16,0,0,2672,8,16,0,0,2688,8,16,0,0,2704,8,16,0,0,2720,8,16,0,0,2736,8,16,0,0,2752,8,16,0,0,2768,8,16,0,0,2784,8,16,0,0,2800,8,16,0,0,2816,8,16,0,0,2832,8,16,0,0,2848,8,16,0,0,2864,8,16,0,0,2880,8,16,0,0,2896,8,16,0,0,2912,8,16,0,0,2928,8,16,0,0,2944,8,16,0,0,2960,8,16,0,0,2976,8,16,0,0,2992,8,16,0,0,3008,8,16,0,0,3024,8,16,0,0,3040,8,16,0,0,3056,8,16,0,0,3072,8,16,0,0,3088,8,16,0,0,3104,8,16,0,0,3120,8,16,0,0,3136,8,16,0,0,3152,8,16,0,0,3168,8,16,0,0,3184,8,16,0,0,3200,8,16,0,0,3216,8,16,0,0,3232,8,16,0,0,3248,8,16,0,0,3264,8,16,0,0,3280,8,16,0,0,3296,8,16,0,0,3312,8,16,0,0,3328,8,16,0,0,3344,8,16,0,0,3360,8,16,0,0,3376,8,16,0,0,3392,8,16,0,0,3408,8,16,0,0,3424,8,16,0,0,3440,8,16,0,0,3456,8,16,0,0,3472,8,16,0,0,3488,8,16,0,0,3504,8,16,0,0,3520,8,16,0,0,3536,8,16,0,0,3552,8,16,0,0,3568,8,16,0,0,3584,8,16,0,0,3600,8,16,0,0,3616,8,16,0,0,3632,8,16,0,0,3648,8,16,0,0,3664,8,16,0,0,3680,8,16,0,0,3696,8,16,0,0,3712,8,16,0,0,3728,8,16,0,0,3744,8,16,0,0,3760,8,16,0,0,3776,8,16,0,0,3792,8,16,0,0,3808,8,16,0,0,3824,8,16,0,0,3840,8,16,0,0,3856,8,16,0,0,3872,8,16,0,0,3888,8,16,0,0,3904,8,16,0,0,3920,8,16,0,0,3936,8,16,0,0,3952,8,16,0,0,3968,8,16,0,0,3984,8,16,0,0,4000,8,16,0,0,4016,8,16,0,0,4032,8,16,0,0,4048,8,16,0,0,4064,8,16,0,0,4080,8,16,0,0,}; +rfbFontData default8x16Font = { default8x16FontData, default8x16FontMetaData }; diff --git a/krfb/libvncserver/draw.c b/krfb/libvncserver/draw.c new file mode 100644 index 00000000..24c41bd4 --- /dev/null +++ b/krfb/libvncserver/draw.c @@ -0,0 +1,61 @@ +#include "rfb.h" + +void rfbFillRect(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,Pixel col) +{ + int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3; + int i,j; + char* colour=(char*)&col; + + if(!rfbEndianTest) + colour += 4-bpp; + for(j=y1;j<y2;j++) + for(i=x1;i<x2;i++) + memcpy(s->frameBuffer+j*rowstride+i*bpp,colour,bpp); + rfbMarkRectAsModified(s,x1,y1,x2,y2); +} + +#define SETPIXEL(x,y) \ + memcpy(s->frameBuffer+(y)*rowstride+(x)*bpp,colour,bpp) + +void rfbDrawPixel(rfbScreenInfoPtr s,int x,int y,Pixel col) +{ + int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3; + char* colour=(char*)&col; + + if(!rfbEndianTest) + colour += 4-bpp; + SETPIXEL(x,y); + rfbMarkRectAsModified(s,x,y,x+1,y+1); +} + +void rfbDrawLine(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,Pixel col) +{ + int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3; + int i; + char* colour=(char*)&col; + + if(!rfbEndianTest) + colour += 4-bpp; + +#define SWAPPOINTS { i=x1; x1=x2; x2=i; i=y1; y1=y2; y2=i; } + if(abs(x1-x2)<abs(y1-y2)) { + if(y1>y2) + SWAPPOINTS + for(i=y1;i<=y2;i++) + SETPIXEL(x1+(i-y1)*(x2-x1)/(y2-y1),i); + /* TODO: Maybe make this more intelligently? */ + if(x2<x1) { i=x1; x1=x2; x2=i; } + rfbMarkRectAsModified(s,x1,y1,x2+1,y2+1); + } else { + if(x1>x2) + SWAPPOINTS + else if(x1==x2) { + rfbDrawPixel(s,x1,y1,col); + return; + } + for(i=x1;i<=x2;i++) + SETPIXEL(i,y1+(i-x1)*(y2-y1)/(x2-x1)); + if(y2<y1) { i=y1; y1=y2; y2=i; } + rfbMarkRectAsModified(s,x1,y1,x2+1,y2+1); + } +} diff --git a/krfb/libvncserver/example.c b/krfb/libvncserver/example.c new file mode 100644 index 00000000..41165c7b --- /dev/null +++ b/krfb/libvncserver/example.c @@ -0,0 +1,279 @@ +/* + * + * This is an example of how to use libvncserver. + * + * libvncserver example + * Copyright (C) 2001 Johannes E. Schindelin <[email protected]> + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#ifdef WIN32 +#define sleep Sleep +#else +#include <unistd.h> +#endif + +#ifdef __IRIX__ +#include <netdb.h> +#endif + +#include "rfb.h" +#include "keysym.h" + +const int maxx=640, maxy=480, bpp=4; +/* TODO: odd maxx doesn't work (vncviewer bug) */ + +/* This initializes a nice (?) background */ + +void initBuffer(unsigned char* buffer) +{ + int i,j; + for(j=0;j<maxy;++j) { + for(i=0;i<maxx;++i) { + buffer[(j*maxx+i)*bpp+0]=(i+j)*128/(maxx+maxy); /* red */ + buffer[(j*maxx+i)*bpp+1]=i*128/maxx; /* green */ + buffer[(j*maxx+i)*bpp+2]=j*256/maxy; /* blue */ + } + buffer[j*maxx*bpp+0]=0xff; + buffer[j*maxx*bpp+1]=0xff; + buffer[j*maxx*bpp+2]=0xff; + buffer[j*maxx*bpp+3]=0xff; + } +} + +/* Here we create a structure so that every client has it's own pointer */ + +typedef struct ClientData { + Bool oldButton; + int oldx,oldy; +} ClientData; + +void clientgone(rfbClientPtr cl) +{ + free(cl->clientData); +} + +enum rfbNewClientAction newclient(rfbClientPtr cl) +{ + cl->clientData = (void*)calloc(sizeof(ClientData),1); + cl->clientGoneHook = clientgone; + return RFB_CLIENT_ACCEPT; +} + +/* aux function to draw a line */ + +void drawline(unsigned char* buffer,int rowstride,int bpp,int x1,int y1,int x2,int y2) +{ + int i,j; + i=x1-x2; j=y1-y2; + if(i==0 && j==0) { + for(i=0;i<bpp;i++) + buffer[y1*rowstride+x1*bpp+i]=0xff; + return; + } + if(i<0) i=-i; + if(j<0) j=-j; + if(i<j) { + if(y1>y2) { i=y2; y2=y1; y1=i; i=x2; x2=x1; x1=i; } + if(y2==y1) { if(y2>0) y1--; else y2++; } + for(j=y1;j<=y2;j++) + for(i=0;i<bpp;i++) + buffer[j*rowstride+(x1+(j-y1)*(x2-x1)/(y2-y1))*bpp+i]=0xff; + } else { + if(x1>x2) { i=y2; y2=y1; y1=i; i=x2; x2=x1; x1=i; } + for(i=x1;i<=x2;i++) + for(j=0;j<bpp;j++) + buffer[(y1+(i-x1)*(y2-y1)/(x2-x1))*rowstride+i*bpp+j]=0xff; + } +} + +/* Here the pointer events are handled */ + +void doptr(int buttonMask,int x,int y,rfbClientPtr cl) +{ + ClientData* cd=cl->clientData; + + if(cl->screen->cursorIsDrawn) + rfbUndrawCursor(cl->screen); + + if(x>=0 && y>=0 && x<maxx && y<maxy) { + if(buttonMask) { + int i,j,x1,x2,y1,y2; + + if(cd->oldButton==buttonMask) { /* draw a line */ + drawline(cl->screen->frameBuffer,cl->screen->paddedWidthInBytes,bpp, + x,y,cd->oldx,cd->oldy); + rfbMarkRectAsModified(cl->screen,x,y,cd->oldx,cd->oldy); + } else { /* draw a point (diameter depends on button) */ + int w=cl->screen->paddedWidthInBytes; + x1=x-buttonMask; if(x1<0) x1=0; + x2=x+buttonMask; if(x2>maxx) x2=maxx; + y1=y-buttonMask; if(y1<0) y1=0; + y2=y+buttonMask; if(y2>maxy) y2=maxy; + + for(i=x1*bpp;i<x2*bpp;i++) + for(j=y1;j<y2;j++) + cl->screen->frameBuffer[j*w+i]=(char)0xff; + rfbMarkRectAsModified(cl->screen,x1,y1,x2-1,y2-1); + } + + /* we could get a selection like that: + rfbGotXCutText(cl->screen,"Hallo",5); + */ + } else + cd->oldButton=0; + + cd->oldx=x; cd->oldy=y; cd->oldButton=buttonMask; + } + defaultPtrAddEvent(buttonMask,x,y,cl); +} + +/* aux function to draw a character to x, y */ + +#include "radon.h" + +/* Here the key events are handled */ + +void dokey(Bool down,KeySym key,rfbClientPtr cl) +{ + if(down) { + if(key==XK_Escape) + rfbCloseClient(cl); + else if(key==XK_Page_Up) { + if(cl->screen->cursorIsDrawn) + rfbUndrawCursor(cl->screen); + initBuffer(cl->screen->frameBuffer); + rfbMarkRectAsModified(cl->screen,0,0,maxx,maxy); + } else if(key>=' ' && key<0x100) { + ClientData* cd=cl->clientData; + int x1=cd->oldx,y1=cd->oldy,x2,y2; + if(cl->screen->cursorIsDrawn) + rfbUndrawCursor(cl->screen); + cd->oldx+=rfbDrawChar(cl->screen,&radonFont,cd->oldx,cd->oldy,(char)key,0x00ffffff); + rfbFontBBox(&radonFont,(char)key,&x1,&y1,&x2,&y2); + rfbMarkRectAsModified(cl->screen,x1,y1,x2-1,y2-1); + } + } +} + +/* Example for an XCursor (foreground/background only) */ + +int exampleXCursorWidth=9,exampleXCursorHeight=7; +char exampleXCursor[]= + " " + " xx xx " + " xx xx " + " xxx " + " xx xx " + " xx xx " + " "; + +/* Example for a rich cursor (full-colour) */ + +void MakeRichCursor(rfbScreenInfoPtr rfbScreen) +{ + int i,j,w=32,h=32; + rfbCursorPtr c = rfbScreen->cursor; + char bitmap[]= + " " + " xxxxxx " + " xxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxxxxxxxxx " + " xxxxx xxxxxxxx xxxxxxxx " + " xxxxxxxxxxxxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxxxxxxxxxxxxxxxx " + " xxxxx xxxxxxxxxxx xxxxxxx " + " xxxx xxxxxxxxx xxxxxx " + " xxxxx xxxxxxxxxxx xxxxxxx " + " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxx xxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxxxxxxxxxxxxxxx " + " xxxxxxxxxxx xxxxxxxxxxxxxx " + " xxxxxxxxxx xxxxxxxxxxxx " + " xxxxxxxxx xxxxxxxxx " + " xxxxxxxxxx xxxxxxxxx " + " xxxxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxx " + " xxxx xxxxxxxxxxxxx " + " xx x xxxxxxxxxxx " + " xxx xxxxxxxxxxx " + " xxxx xxxxxxxxxxx " + " xxxxxx xxxxxxxxxxxx " + " xxxxxxxxxxxxxxxxxxxxxx " + " xxxxxxxxxxxxxxxx " + " "; + c=rfbScreen->cursor = rfbMakeXCursor(w,h,bitmap,bitmap); + c->xhot = 16; c->yhot = 24; + + c->richSource = malloc(w*h*bpp); + for(j=0;j<h;j++) { + for(i=0;i<w;i++) { + c->richSource[j*w*bpp+i*bpp+0]=i*0xff/w; + c->richSource[j*w*bpp+i*bpp+1]=(i+j)*0xff/(w+h); + c->richSource[j*w*bpp+i*bpp+2]=j*0xff/h; + c->richSource[j*w*bpp+i*bpp+3]=0; + } + } +} + +/* Initialization */ + +int main(int argc,char** argv) +{ + rfbScreenInfoPtr rfbScreen = + rfbGetScreen(&argc,argv,maxx,maxy,8,3,bpp); + rfbScreen->desktopName = "LibVNCServer Example"; + rfbScreen->frameBuffer = (char*)malloc(maxx*maxy*bpp); + rfbScreen->rfbAlwaysShared = TRUE; + rfbScreen->ptrAddEvent = doptr; + rfbScreen->kbdAddEvent = dokey; + rfbScreen->newClientHook = newclient; + rfbScreen->httpDir = "./classes"; + + initBuffer(rfbScreen->frameBuffer); + rfbDrawString(rfbScreen,&radonFont,20,100,"Hello, World!",0xffffff); + + /* This call creates a mask and then a cursor: */ + /* rfbScreen->defaultCursor = + rfbMakeXCursor(exampleCursorWidth,exampleCursorHeight,exampleCursor,0); + */ + + MakeRichCursor(rfbScreen); + + /* initialize the server */ + rfbInitServer(rfbScreen); + +#ifndef BACKGROUND_LOOP_TEST + /* this is the blocking event loop, i.e. it never returns */ + /* 40000 are the microseconds, i.e. 0.04 seconds */ + rfbRunEventLoop(rfbScreen,40000,FALSE); +#elif !defined(HAVE_PTHREADS) +#error "I need pthreads for that." +#endif + + /* this is the non-blocking event loop; a background thread is started */ + rfbRunEventLoop(rfbScreen,-1,TRUE); + /* now we could do some cool things like rendering */ + while(1) sleep(5); /* render(); */ + + return(0); +} diff --git a/krfb/libvncserver/font.c b/krfb/libvncserver/font.c new file mode 100644 index 00000000..b9d68d0f --- /dev/null +++ b/krfb/libvncserver/font.c @@ -0,0 +1,192 @@ +#include "rfb.h" + +int rfbDrawChar(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font, + int x,int y,unsigned char c,Pixel col) +{ + int i,j,width,height; + unsigned char* data=font->data+font->metaData[c*5]; + unsigned char d=*data; + int rowstride=rfbScreen->paddedWidthInBytes; + int bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8; + char *colour=(char*)&col; + + if(!rfbEndianTest) + colour += 4-bpp; + + width=font->metaData[c*5+1]; + height=font->metaData[c*5+2]; + x+=font->metaData[c*5+3]; + y+=-font->metaData[c*5+4]-height+1; + + for(j=0;j<height;j++) { + for(i=0;i<width;i++) { + if((i&7)==0) { + d=*data; + data++; + } + if(d&0x80) + memcpy(rfbScreen->frameBuffer+(y+j)*rowstride+(x+i)*bpp,colour,bpp); + d<<=1; + } + /* if((i&7)!=0) data++; */ + } + return(width); +} + +void rfbDrawString(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font, + int x,int y,const char* string,Pixel colour) +{ + while(*string) { + x+=rfbDrawChar(rfbScreen,font,x,y,*string,colour); + string++; + } +} + +/* TODO: these two functions need to be more efficient */ +int rfbDrawCharWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font, + int x,int y,unsigned char c, + int x1,int y1,int x2,int y2, + Pixel col,Pixel bcol) +{ + int i,j,width,height; + unsigned char* data=font->data+font->metaData[c*5]; + unsigned char d; + int rowstride=rfbScreen->paddedWidthInBytes; + int bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8,extra_bytes=0; + char* colour=(char*)&col; + char* bcolour=(char*)&bcol; + + if(!rfbEndianTest) { + colour+=4-bpp; + bcolour+=4-bpp; + } + + width=font->metaData[c*5+1]; + height=font->metaData[c*5+2]; + x+=font->metaData[c*5+3]; + y+=-font->metaData[c*5+4]-height+1; + + /* after clipping, x2 will be count of bytes between rows, + * x1 start of i, y1 start of j, width and height will be adjusted. */ + if(y1>y) { y1-=y; data+=(width+7)/8; height-=y1; y+=y1; } else y1=0; + if(x1>x) { x1-=x; data+=x1; width-=x1; x+=x1; extra_bytes+=x1/8; } else x1=0; + if(y2<y+height) height-=y+height-y2; + if(x2<x+width) { extra_bytes+=(x1+width)/8-(x+width-x2+7)/8; width-=x+width-x2; } + + d=*data; + for(j=y1;j<height;j++) { + if((x1&7)!=0) + d=data[-1]; /* TODO: check if in this case extra_bytes is correct! */ + for(i=x1;i<width;i++) { + if((i&7)==0) { + d=*data; + data++; + } + /* if(x+i>=x1 && x+i<x2 && y+j>=y1 && y+j<y2) */ { + if(d&0x80) { + memcpy(rfbScreen->frameBuffer+(y+j)*rowstride+(x+i)*bpp, + colour,bpp); + } else if(bcol!=col) { + memcpy(rfbScreen->frameBuffer+(y+j)*rowstride+(x+i)*bpp, + bcolour,bpp); + } + } + d<<=1; + } + /* if((i&7)==0) data++; */ + data += extra_bytes; + } + return(width); +} + +void rfbDrawStringWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font, + int x,int y,const char* string, + int x1,int y1,int x2,int y2, + Pixel colour,Pixel backColour) +{ + while(*string) { + x+=rfbDrawCharWithClip(rfbScreen,font,x,y,*string,x1,y1,x2,y2, + colour,backColour); + string++; + } +} + +int rfbWidthOfString(rfbFontDataPtr font,const char* string) +{ + int i=0; + while(*string) { + i+=font->metaData[*string*5+1]; + string++; + } + return(i); +} + +int rfbWidthOfChar(rfbFontDataPtr font,unsigned char c) +{ + return(font->metaData[c*5+1]+font->metaData[c*5+3]); +} + +void rfbFontBBox(rfbFontDataPtr font,unsigned char c,int* x1,int* y1,int* x2,int* y2) +{ + *x1+=font->metaData[c*5+3]; + *y1+=-font->metaData[c*5+4]-font->metaData[c*5+2]+1; + *x2=*x1+font->metaData[c*5+1]; + *y2=*y1+font->metaData[c*5+2]; +} + +#ifndef INT_MAX +#define INT_MAX 0x7fffffff +#endif + +void rfbWholeFontBBox(rfbFontDataPtr font, + int *x1, int *y1, int *x2, int *y2) +{ + int i; + int* m=font->metaData; + + (*x1)=(*y1)=INT_MAX; (*x2)=(*y2)=-INT_MAX+1; + for(i=0;i<256;i++) { + if(m[i*5+1]-m[i*5+3]>(*x2)) + (*x2)=m[i*5+1]-m[i*5+3]; + if(-m[i*5+2]+m[i*5+4]<(*y1)) + (*y1)=-m[i*5+2]+m[i*5+4]; + if(m[i*5+3]<(*x1)) + (*x1)=m[i*5+3]; + if(-m[i*5+4]>(*y2)) + (*y2)=-m[i*5+4]; + } +} + +rfbFontDataPtr rfbLoadConsoleFont(char *filename) +{ + FILE *f=fopen(filename,"rb"); + rfbFontDataPtr p; + int i; + + if(!f) return(0); + + p=(rfbFontDataPtr)malloc(sizeof(rfbFontData)); + p->data=(unsigned char*)malloc(4096); + if(1!=fread(p->data,4096,1,f)) { + free(p->data); + free(p); + return(0); + } + fclose(f); + p->metaData=(int*)malloc(256*5*sizeof(int)); + for(i=0;i<256;i++) { + p->metaData[i*5+0]=i*16; /* offset */ + p->metaData[i*5+1]=8; /* width */ + p->metaData[i*5+2]=16; /* height */ + p->metaData[i*5+3]=0; /* xhot */ + p->metaData[i*5+4]=0; /* yhot */ + } + return(p); +} + +void rfbFreeFont(rfbFontDataPtr f) +{ + free(f->data); + free(f->metaData); + free(f); +} diff --git a/krfb/libvncserver/fontsel.c b/krfb/libvncserver/fontsel.c new file mode 100644 index 00000000..100db817 --- /dev/null +++ b/krfb/libvncserver/fontsel.c @@ -0,0 +1,71 @@ +#include "rfb.h" + +#define FONTDIR "/usr/lib/kbd/consolefonts/" +#define DEFAULTFONT FONTDIR "default8x16" + +char *fontlist[50]={ +"8x16alt", "b.fnt", "c.fnt", "default8x16", "m.fnt", "ml.fnt", "mod_d.fnt", +"mod_s.fnt", "mr.fnt", "mu.fnt", "r.fnt", "rl.fnt", "ro.fnt", "s.fnt", +"sc.fnt", "scrawl_s.fnt", "scrawl_w.fnt", "sd.fnt", "t.fnt", + 0 +}; + +rfbScreenInfoPtr rfbScreen = 0; +rfbFontDataPtr curFont = 0; +void showFont(int index) +{ + char buffer[1024]; + + if(!rfbScreen) return; + + if(curFont) + rfbFreeFont(curFont); + + strcpy(buffer,FONTDIR); + strcat(buffer,fontlist[index]); + curFont = rfbLoadConsoleFont(buffer); + + rfbFillRect(rfbScreen,210,30-20,210+10*16,30-20+256*20/16,0xb77797); + if(curFont) { + int i,j; + for(j=0;j<256;j+=16) + for(i=0;i<16;i++) + rfbDrawCharWithClip(rfbScreen,curFont,210+10*i,30+j*20/16,j+i, + 0,0,640,480,0xffffff,0x000000); + } +} + +int main(int argc,char** argv) +{ + rfbFontDataPtr font; + rfbScreenInfoPtr s=rfbGetScreen(&argc,argv,640,480,8,3,3); + int i,j; + + s->frameBuffer=(char*)malloc(640*480*3); + rfbInitServer(s); + + for(j=0;j<480;j++) + for(i=0;i<640;i++) { + s->frameBuffer[(j*640+i)*3+0]=j*256/480; + s->frameBuffer[(j*640+i)*3+1]=i*256/640; + s->frameBuffer[(j*640+i)*3+2]=(i+j)*256/(480+640); + } + + rfbScreen = s; + font=rfbLoadConsoleFont(DEFAULTFONT); + if(!font) { + fprintf(stderr,"Couldn't find %s\n",DEFAULTFONT); + exit(1); + } + + for(j=0;j<0;j++) + rfbProcessEvents(s,900000); + + i = rfbSelectBox(s,font,fontlist,10,20,200,300,0xffdfdf,0x602040,2,showFont); + fprintf(stderr,"Selection: %d: %s\n",i,(i>=0)?fontlist[i]:"cancelled"); + + rfbFreeFont(font); + + return(0); +} + diff --git a/krfb/libvncserver/hextile.c b/krfb/libvncserver/hextile.c new file mode 100644 index 00000000..6166844e --- /dev/null +++ b/krfb/libvncserver/hextile.c @@ -0,0 +1,347 @@ +/* + * hextile.c + * + * Routines to implement Hextile Encoding + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include "rfb.h" + +static Bool sendHextiles8(rfbClientPtr cl, int x, int y, int w, int h); +static Bool sendHextiles16(rfbClientPtr cl, int x, int y, int w, int h); +static Bool sendHextiles32(rfbClientPtr cl, int x, int y, int w, int h); + + +/* + * rfbSendRectEncodingHextile - send a rectangle using hextile encoding. + */ + +Bool +rfbSendRectEncodingHextile(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + rfbFramebufferUpdateRectHeader rect; + + if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + rect.r.x = Swap16IfLE(x); + rect.r.y = Swap16IfLE(y); + rect.r.w = Swap16IfLE(w); + rect.r.h = Swap16IfLE(h); + rect.encoding = Swap32IfLE(rfbEncodingHextile); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect, + sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + cl->rfbRectanglesSent[rfbEncodingHextile]++; + cl->rfbBytesSent[rfbEncodingHextile] += sz_rfbFramebufferUpdateRectHeader; + + switch (cl->format.bitsPerPixel) { + case 8: + return sendHextiles8(cl, x, y, w, h); + case 16: + return sendHextiles16(cl, x, y, w, h); + case 32: + return sendHextiles32(cl, x, y, w, h); + } + + rfbLog("rfbSendRectEncodingHextile: bpp %d?\n", cl->format.bitsPerPixel); + return FALSE; +} + + +#define PUT_PIXEL8(pix) (cl->updateBuf[cl->ublen++] = (pix)) + +#define PUT_PIXEL16(pix) (cl->updateBuf[cl->ublen++] = ((char*)&(pix))[0], \ + cl->updateBuf[cl->ublen++] = ((char*)&(pix))[1]) + +#define PUT_PIXEL32(pix) (cl->updateBuf[cl->ublen++] = ((char*)&(pix))[0], \ + cl->updateBuf[cl->ublen++] = ((char*)&(pix))[1], \ + cl->updateBuf[cl->ublen++] = ((char*)&(pix))[2], \ + cl->updateBuf[cl->ublen++] = ((char*)&(pix))[3]) + + +#define DEFINE_SEND_HEXTILES(bpp) \ + \ + \ +static Bool subrectEncode##bpp(rfbClientPtr cli, CARD##bpp *data, int w, int h, \ + CARD##bpp bg, CARD##bpp fg, Bool mono); \ +static void testColours##bpp(CARD##bpp *data, int size, Bool *mono, \ + Bool *solid, CARD##bpp *bg, CARD##bpp *fg); \ + \ + \ +/* \ + * rfbSendHextiles \ + */ \ + \ +static Bool \ +sendHextiles##bpp(cl, rx, ry, rw, rh) \ + rfbClientPtr cl; \ + int rx, ry, rw, rh; \ +{ \ + int x, y, w, h; \ + int startUblen; \ + char *fbptr; \ + CARD##bpp bg = 0, fg = 0, newBg, newFg; \ + Bool mono, solid; \ + Bool validBg = FALSE; \ + Bool validFg = FALSE; \ + CARD##bpp clientPixelData[16*16*(bpp/8)]; \ + \ + for (y = ry; y < ry+rh; y += 16) { \ + for (x = rx; x < rx+rw; x += 16) { \ + w = h = 16; \ + if (rx+rw - x < 16) \ + w = rx+rw - x; \ + if (ry+rh - y < 16) \ + h = ry+rh - y; \ + \ + if ((cl->ublen + 1 + (2 + 16 * 16) * (bpp/8)) > \ + UPDATE_BUF_SIZE) { \ + if (!rfbSendUpdateBuf(cl)) \ + return FALSE; \ + } \ + \ + fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y) \ + + (x * (cl->screen->bitsPerPixel / 8))); \ + \ + (*cl->translateFn)(cl->translateLookupTable, &(cl->screen->rfbServerFormat), \ + &cl->format, fbptr, (char *)clientPixelData, \ + cl->screen->paddedWidthInBytes, w, h); \ + \ + startUblen = cl->ublen; \ + cl->updateBuf[startUblen] = 0; \ + cl->ublen++; \ + \ + testColours##bpp(clientPixelData, w * h, \ + &mono, &solid, &newBg, &newFg); \ + \ + if (!validBg || (newBg != bg)) { \ + validBg = TRUE; \ + bg = newBg; \ + cl->updateBuf[startUblen] |= rfbHextileBackgroundSpecified; \ + PUT_PIXEL##bpp(bg); \ + } \ + \ + if (solid) { \ + cl->rfbBytesSent[rfbEncodingHextile] += cl->ublen - startUblen; \ + continue; \ + } \ + \ + cl->updateBuf[startUblen] |= rfbHextileAnySubrects; \ + \ + if (mono) { \ + if (!validFg || (newFg != fg)) { \ + validFg = TRUE; \ + fg = newFg; \ + cl->updateBuf[startUblen] |= rfbHextileForegroundSpecified; \ + PUT_PIXEL##bpp(fg); \ + } \ + } else { \ + validFg = FALSE; \ + cl->updateBuf[startUblen] |= rfbHextileSubrectsColoured; \ + } \ + \ + if (!subrectEncode##bpp(cl, clientPixelData, w, h, bg, fg, mono)) { \ + /* encoding was too large, use raw */ \ + validBg = FALSE; \ + validFg = FALSE; \ + cl->ublen = startUblen; \ + cl->updateBuf[cl->ublen++] = rfbHextileRaw; \ + (*cl->translateFn)(cl->translateLookupTable, \ + &(cl->screen->rfbServerFormat), &cl->format, fbptr, \ + (char *)clientPixelData, \ + cl->screen->paddedWidthInBytes, w, h); \ + \ + memcpy(&cl->updateBuf[cl->ublen], (char *)clientPixelData, \ + w * h * (bpp/8)); \ + \ + cl->ublen += w * h * (bpp/8); \ + } \ + \ + cl->rfbBytesSent[rfbEncodingHextile] += cl->ublen - startUblen; \ + } \ + } \ + \ + return TRUE; \ +} \ + \ + \ +static Bool \ +subrectEncode##bpp(rfbClientPtr cl, CARD##bpp *data, int w, int h, \ + CARD##bpp bg, CARD##bpp fg, Bool mono) \ +{ \ + CARD##bpp cl2; \ + int x,y; \ + int i,j; \ + int hx=0,hy,vx=0,vy; \ + int hyflag; \ + CARD##bpp *seg; \ + CARD##bpp *line; \ + int hw,hh,vw,vh; \ + int thex,they,thew,theh; \ + int numsubs = 0; \ + int newLen; \ + int nSubrectsUblen; \ + \ + nSubrectsUblen = cl->ublen; \ + cl->ublen++; \ + \ + for (y=0; y<h; y++) { \ + line = data+(y*w); \ + for (x=0; x<w; x++) { \ + if (line[x] != bg) { \ + cl2 = line[x]; \ + hy = y-1; \ + hyflag = 1; \ + for (j=y; j<h; j++) { \ + seg = data+(j*w); \ + if (seg[x] != cl2) {break;} \ + i = x; \ + while ((seg[i] == cl2) && (i < w)) i += 1; \ + i -= 1; \ + if (j == y) vx = hx = i; \ + if (i < vx) vx = i; \ + if ((hyflag > 0) && (i >= hx)) { \ + hy += 1; \ + } else { \ + hyflag = 0; \ + } \ + } \ + vy = j-1; \ + \ + /* We now have two possible subrects: (x,y,hx,hy) and \ + * (x,y,vx,vy). We'll choose the bigger of the two. \ + */ \ + hw = hx-x+1; \ + hh = hy-y+1; \ + vw = vx-x+1; \ + vh = vy-y+1; \ + \ + thex = x; \ + they = y; \ + \ + if ((hw*hh) > (vw*vh)) { \ + thew = hw; \ + theh = hh; \ + } else { \ + thew = vw; \ + theh = vh; \ + } \ + \ + if (mono) { \ + newLen = cl->ublen - nSubrectsUblen + 2; \ + } else { \ + newLen = cl->ublen - nSubrectsUblen + bpp/8 + 2; \ + } \ + \ + if (newLen > (w * h * (bpp/8))) \ + return FALSE; \ + \ + numsubs += 1; \ + \ + if (!mono) PUT_PIXEL##bpp(cl2); \ + \ + cl->updateBuf[cl->ublen++] = rfbHextilePackXY(thex,they); \ + cl->updateBuf[cl->ublen++] = rfbHextilePackWH(thew,theh); \ + \ + /* \ + * Now mark the subrect as done. \ + */ \ + for (j=they; j < (they+theh); j++) { \ + for (i=thex; i < (thex+thew); i++) { \ + data[j*w+i] = bg; \ + } \ + } \ + } \ + } \ + } \ + \ + cl->updateBuf[nSubrectsUblen] = numsubs; \ + \ + return TRUE; \ +} \ + \ + \ +/* \ + * testColours() tests if there are one (solid), two (mono) or more \ + * colours in a tile and gets a reasonable guess at the best background \ + * pixel, and the foreground pixel for mono. \ + */ \ + \ +static void \ +testColours##bpp(data,size,mono,solid,bg,fg) \ + CARD##bpp *data; \ + int size; \ + Bool *mono; \ + Bool *solid; \ + CARD##bpp *bg; \ + CARD##bpp *fg; \ +{ \ + CARD##bpp colour1 = 0, colour2 = 0; \ + int n1 = 0, n2 = 0; \ + *mono = TRUE; \ + *solid = TRUE; \ + \ + for (; size > 0; size--, data++) { \ + \ + if (n1 == 0) \ + colour1 = *data; \ + \ + if (*data == colour1) { \ + n1++; \ + continue; \ + } \ + \ + if (n2 == 0) { \ + *solid = FALSE; \ + colour2 = *data; \ + } \ + \ + if (*data == colour2) { \ + n2++; \ + continue; \ + } \ + \ + *mono = FALSE; \ + break; \ + } \ + \ + if (n1 > n2) { \ + *bg = colour1; \ + *fg = colour2; \ + } else { \ + *bg = colour2; \ + *fg = colour1; \ + } \ +} + +DEFINE_SEND_HEXTILES(8) +DEFINE_SEND_HEXTILES(16) +DEFINE_SEND_HEXTILES(32) diff --git a/krfb/libvncserver/httpd.c b/krfb/libvncserver/httpd.c new file mode 100644 index 00000000..72019b64 --- /dev/null +++ b/krfb/libvncserver/httpd.c @@ -0,0 +1,423 @@ +/* + * httpd.c - a simple HTTP server + */ + +/* + * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include <sys/types.h> +#ifdef WIN32 +#include <winsock.h> +#define close closesocket +#else +#include <sys/time.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <netinet/tcp.h> +#include <netdb.h> +#include <pwd.h> +#include <arpa/inet.h> +#include <unistd.h> +#endif +#include <fcntl.h> +#include <errno.h> +#ifdef __osf__ +typedef int socklen_t; +#endif + +#ifdef USE_LIBWRAP +#include <tcpd.h> +#endif + +#include "rfb.h" + +#define NOT_FOUND_STR "HTTP/1.0 404 Not found\n\n" \ + "<HEAD><TITLE>File Not Found</TITLE></HEAD>\n" \ + "<BODY><H1>File Not Found</H1></BODY>\n" + +#define OK_STR "HTTP/1.0 200 OK\nContent-Type: text/html\n\n" + +static void httpProcessInput(); +static Bool compareAndSkip(char **ptr, const char *str); + +/* +int httpPort = 0; +char *httpDir = NULL; + +int httpListenSock = -1; +int httpSock = -1; +FILE* httpFP = NULL; +*/ + +#define BUF_SIZE 32768 + +static char buf[BUF_SIZE]; +static size_t buf_filled=0; + + +/* + * httpInitSockets sets up the TCP socket to listen for HTTP connections. + */ + +void +httpInitSockets(rfbScreenInfoPtr rfbScreen) +{ + if (rfbScreen->httpInitDone) + return; + + rfbScreen->httpInitDone = TRUE; + + if (!rfbScreen->httpDir) + return; + + if (rfbScreen->httpPort == 0) { + rfbScreen->httpPort = rfbScreen->rfbPort-100; + } + + rfbLog("Listening for HTTP connections on TCP port %d\n", rfbScreen->httpPort); + + rfbLog(" URL http://%s:%d\n",rfbScreen->rfbThisHost,rfbScreen->httpPort); + + if ((rfbScreen->httpListenSock = ListenOnTCPPort(rfbScreen->httpPort)) < 0) { + rfbLogPerror("ListenOnTCPPort"); + exit(1); + } + + /*AddEnabledDevice(httpListenSock);*/ +} + + +/* + * httpCheckFds is called from ProcessInputEvents to check for input on the + * HTTP socket(s). If there is input to process, httpProcessInput is called. + */ + +void +httpCheckFds(rfbScreenInfoPtr rfbScreen) +{ + int nfds; + fd_set fds; + struct timeval tv; + struct sockaddr_in addr; + size_t addrlen = sizeof(addr); + + if (!rfbScreen->httpDir) + return; + + FD_ZERO(&fds); + FD_SET(rfbScreen->httpListenSock, &fds); + if (rfbScreen->httpSock >= 0) { + FD_SET(rfbScreen->httpSock, &fds); + } + tv.tv_sec = 0; + tv.tv_usec = 0; + nfds = select(max(rfbScreen->httpSock,rfbScreen->httpListenSock) + 1, &fds, NULL, NULL, &tv); + if (nfds == 0) { + return; + } + if (nfds < 0) { +#ifdef WIN32 + errno = WSAGetLastError(); +#endif + rfbLogPerror("httpCheckFds: select"); + return; + } + + if ((rfbScreen->httpSock >= 0) && FD_ISSET(rfbScreen->httpSock, &fds)) { + httpProcessInput(rfbScreen); + } + + if (FD_ISSET(rfbScreen->httpListenSock, &fds)) { + int flags; + if (rfbScreen->httpSock >= 0) close(rfbScreen->httpSock); + + if ((rfbScreen->httpSock = accept(rfbScreen->httpListenSock, + (struct sockaddr *)&addr, &addrlen)) < 0) { + rfbLogPerror("httpCheckFds: accept"); + return; + } +#ifdef USE_LIBWRAP + if(!hosts_ctl("vnc",STRING_UNKNOWN,inet_ntoa(addr.sin_addr), + STRING_UNKNOWN)) { + rfbLog("Rejected connection from client %s\n", + inet_ntoa(addr.sin_addr)); +#else + if ((rfbScreen->httpFP = fdopen(rfbScreen->httpSock, "r+")) == NULL) { + rfbLogPerror("httpCheckFds: fdopen"); +#endif + close(rfbScreen->httpSock); + rfbScreen->httpSock = -1; + return; + } + flags=fcntl(rfbScreen->httpSock,F_GETFL); + if(flags==-1 || + fcntl(rfbScreen->httpSock,F_SETFL,flags|O_NONBLOCK)==-1) { + rfbLogPerror("httpCheckFds: fcntl"); + close(rfbScreen->httpSock); + rfbScreen->httpSock=-1; + return; + } + + /*AddEnabledDevice(httpSock);*/ + } +} + + +static void +httpCloseSock(rfbScreenInfoPtr rfbScreen) +{ + fclose(rfbScreen->httpFP); + rfbScreen->httpFP = NULL; + /*RemoveEnabledDevice(httpSock);*/ + rfbScreen->httpSock = -1; +} + +static rfbClientRec cl; + +/* + * httpProcessInput is called when input is received on the HTTP socket. + */ + +static void +httpProcessInput(rfbScreenInfoPtr rfbScreen) +{ + struct sockaddr_in addr; + size_t addrlen = sizeof(addr); + char fullFname[256]; + char *fname; + unsigned int maxFnameLen; + FILE* fd; + Bool performSubstitutions = FALSE; + char str[256]; +#ifndef WIN32 + struct passwd *user = getpwuid(getuid()); +#endif + + cl.sock=rfbScreen->httpSock; + + if (strlen(rfbScreen->httpDir) > 200) { + rfbLog("-httpd directory too long\n"); + httpCloseSock(rfbScreen); + return; + } + strcpy(fullFname, rfbScreen->httpDir); + fname = &fullFname[strlen(fullFname)]; + maxFnameLen = 255 - strlen(fullFname); + + /* Read data from the HTTP client until we get a complete request. */ + while (1) { + ssize_t got = read (rfbScreen->httpSock, buf + buf_filled, + sizeof (buf) - buf_filled - 1); + + if (got <= 0) { + if (got == 0) { + rfbLog("httpd: premature connection close\n"); + } else { + if (errno == EAGAIN) { + return; + } + rfbLogPerror("httpProcessInput: read"); + } + httpCloseSock(rfbScreen); + return; + } + + buf_filled += got; + buf[buf_filled] = '\0'; + + /* Is it complete yet (is there a blank line)? */ + if (strstr (buf, "\r\r") || strstr (buf, "\n\n") || + strstr (buf, "\r\n\r\n") || strstr (buf, "\n\r\n\r")) + break; + } + + + /* Process the request. */ + if (strncmp(buf, "GET ", 4)) { + rfbLog("no GET line\n"); + httpCloseSock(rfbScreen); + return; + } else { + /* Only use the first line. */ + buf[strcspn(buf, "\n\r")] = '\0'; + } + + if (strlen(buf) > maxFnameLen) { + rfbLog("GET line too long\n"); + httpCloseSock(rfbScreen); + return; + } + + if (sscanf(buf, "GET %s HTTP/1.0", fname) != 1) { + rfbLog("couldn't parse GET line\n"); + httpCloseSock(rfbScreen); + return; + } + + if (fname[0] != '/') { + rfbLog("filename didn't begin with '/'\n"); + WriteExact(&cl, NOT_FOUND_STR, strlen(NOT_FOUND_STR)); + httpCloseSock(rfbScreen); + return; + } + + if (strchr(fname+1, '/') != NULL) { + rfbLog("asking for file in other directory\n"); + WriteExact(&cl, NOT_FOUND_STR, strlen(NOT_FOUND_STR)); + httpCloseSock(rfbScreen); + return; + } + + getpeername(rfbScreen->httpSock, (struct sockaddr *)&addr, &addrlen); + rfbLog("httpd: get '%s' for %s\n", fname+1, + inet_ntoa(addr.sin_addr)); + + /* If we were asked for '/', actually read the file index.vnc */ + + if (strcmp(fname, "/") == 0) { + strcpy(fname, "/index.vnc"); + rfbLog("httpd: defaulting to '%s'\n", fname+1); + } + + /* Substitutions are performed on files ending .vnc */ + + if (strlen(fname) >= 4 && strcmp(&fname[strlen(fname)-4], ".vnc") == 0) { + performSubstitutions = TRUE; + } + + /* Open the file */ + + if ((fd = fopen(fullFname, "r")) <= 0) { + rfbLogPerror("httpProcessInput: open"); + WriteExact(&cl, NOT_FOUND_STR, strlen(NOT_FOUND_STR)); + httpCloseSock(rfbScreen); + return; + } + + WriteExact(&cl, OK_STR, strlen(OK_STR)); + + while (1) { + int n = fread(buf, 1, BUF_SIZE-1, fd); + if (n < 0) { + rfbLogPerror("httpProcessInput: read"); + fclose(fd); + httpCloseSock(rfbScreen); + return; + } + + if (n == 0) + break; + + if (performSubstitutions) { + + /* Substitute $WIDTH, $HEIGHT, etc with the appropriate values. + This won't quite work properly if the .vnc file is longer than + BUF_SIZE, but it's reasonable to assume that .vnc files will + always be short. */ + + char *ptr = buf; + char *dollar; + buf[n] = 0; /* make sure it's null-terminated */ + + while ((dollar = strchr(ptr, '$'))!=NULL) { + WriteExact(&cl, ptr, (dollar - ptr)); + + ptr = dollar; + + if (compareAndSkip(&ptr, "$WIDTH")) { + + sprintf(str, "%d", rfbScreen->width); + WriteExact(&cl, str, strlen(str)); + + } else if (compareAndSkip(&ptr, "$HEIGHT")) { + + sprintf(str, "%d", rfbScreen->height); + WriteExact(&cl, str, strlen(str)); + + } else if (compareAndSkip(&ptr, "$APPLETWIDTH")) { + + sprintf(str, "%d", rfbScreen->width); + WriteExact(&cl, str, strlen(str)); + + } else if (compareAndSkip(&ptr, "$APPLETHEIGHT")) { + + sprintf(str, "%d", rfbScreen->height + 32); + WriteExact(&cl, str, strlen(str)); + + } else if (compareAndSkip(&ptr, "$PORT")) { + + sprintf(str, "%d", rfbScreen->rfbPort); + WriteExact(&cl, str, strlen(str)); + + } else if (compareAndSkip(&ptr, "$DESKTOP")) { + + WriteExact(&cl, rfbScreen->desktopName, strlen(rfbScreen->desktopName)); + + } else if (compareAndSkip(&ptr, "$DISPLAY")) { + + sprintf(str, "%s:%d", rfbScreen->rfbThisHost, rfbScreen->rfbPort-5900); + WriteExact(&cl, str, strlen(str)); + + } else if (compareAndSkip(&ptr, "$USER")) { +#ifndef WIN32 + if (user) { + WriteExact(&cl, user->pw_name, + strlen(user->pw_name)); + } else +#endif + WriteExact(&cl, "?", 1); + } else { + if (!compareAndSkip(&ptr, "$$")) + ptr++; + + if (WriteExact(&cl, "$", 1) < 0) { + fclose(fd); + httpCloseSock(rfbScreen); + return; + } + } + } + if (WriteExact(&cl, ptr, (&buf[n] - ptr)) < 0) + break; + + } else { + + /* For files not ending .vnc, just write out the buffer */ + + if (WriteExact(&cl, buf, n) < 0) + break; + } + } + + fclose(fd); + httpCloseSock(rfbScreen); +} + + +static Bool +compareAndSkip(char **ptr, const char *str) +{ + if (strncmp(*ptr, str, strlen(str)) == 0) { + *ptr += strlen(str); + return TRUE; + } + + return FALSE; +} diff --git a/krfb/libvncserver/keysym.h b/krfb/libvncserver/keysym.h new file mode 100644 index 00000000..dc165b3b --- /dev/null +++ b/krfb/libvncserver/keysym.h @@ -0,0 +1,1639 @@ +#ifndef KEYSYM_H +#define KEYSYM_H + +/* $XConsortium: keysym.h,v 1.15 94/04/17 20:10:55 rws Exp $ */ + +/*********************************************************** + +Copyright (c) 1987 X Consortium + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of the X Consortium shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from the X Consortium. + + +Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +******************************************************************/ + +/* default keysyms */ +#define XK_MISCELLANY +#define XK_XKB_KEYS +#define XK_LATIN1 +#define XK_LATIN2 +#define XK_LATIN3 +#define XK_LATIN4 +#define XK_GREEK + +/* $TOG: keysymdef.h /main/25 1997/06/21 10:54:51 kaleb $ */ + +/*********************************************************** +Copyright (c) 1987, 1994 X Consortium + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of the X Consortium shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization +from the X Consortium. + + +Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +******************************************************************/ + +#define XK_VoidSymbol 0xFFFFFF /* void symbol */ + +#ifdef XK_MISCELLANY +/* + * TTY Functions, cleverly chosen to map to ascii, for convenience of + * programming, but could have been arbitrary (at the cost of lookup + * tables in client code. + */ + +#define XK_BackSpace 0xFF08 /* back space, back char */ +#define XK_Tab 0xFF09 +#define XK_Linefeed 0xFF0A /* Linefeed, LF */ +#define XK_Clear 0xFF0B +#define XK_Return 0xFF0D /* Return, enter */ +#define XK_Pause 0xFF13 /* Pause, hold */ +#define XK_Scroll_Lock 0xFF14 +#define XK_Sys_Req 0xFF15 +#define XK_Escape 0xFF1B +#define XK_Delete 0xFFFF /* Delete, rubout */ + + + +/* International & multi-key character composition */ + +#define XK_Multi_key 0xFF20 /* Multi-key character compose */ +#define XK_SingleCandidate 0xFF3C +#define XK_MultipleCandidate 0xFF3D +#define XK_PreviousCandidate 0xFF3E + +/* Japanese keyboard support */ + +#define XK_Kanji 0xFF21 /* Kanji, Kanji convert */ +#define XK_Muhenkan 0xFF22 /* Cancel Conversion */ +#define XK_Henkan_Mode 0xFF23 /* Start/Stop Conversion */ +#define XK_Henkan 0xFF23 /* Alias for Henkan_Mode */ +#define XK_Romaji 0xFF24 /* to Romaji */ +#define XK_Hiragana 0xFF25 /* to Hiragana */ +#define XK_Katakana 0xFF26 /* to Katakana */ +#define XK_Hiragana_Katakana 0xFF27 /* Hiragana/Katakana toggle */ +#define XK_Zenkaku 0xFF28 /* to Zenkaku */ +#define XK_Hankaku 0xFF29 /* to Hankaku */ +#define XK_Zenkaku_Hankaku 0xFF2A /* Zenkaku/Hankaku toggle */ +#define XK_Touroku 0xFF2B /* Add to Dictionary */ +#define XK_Massyo 0xFF2C /* Delete from Dictionary */ +#define XK_Kana_Lock 0xFF2D /* Kana Lock */ +#define XK_Kana_Shift 0xFF2E /* Kana Shift */ +#define XK_Eisu_Shift 0xFF2F /* Alphanumeric Shift */ +#define XK_Eisu_toggle 0xFF30 /* Alphanumeric toggle */ +#define XK_Zen_Koho 0xFF3D /* Multiple/All Candidate(s) */ +#define XK_Mae_Koho 0xFF3E /* Previous Candidate */ + +/* 0xFF31 thru 0xFF3F are under XK_KOREAN */ + +/* Cursor control & motion */ + +#define XK_Home 0xFF50 +#define XK_Left 0xFF51 /* Move left, left arrow */ +#define XK_Up 0xFF52 /* Move up, up arrow */ +#define XK_Right 0xFF53 /* Move right, right arrow */ +#define XK_Down 0xFF54 /* Move down, down arrow */ +#define XK_Prior 0xFF55 /* Prior, previous */ +#define XK_Page_Up 0xFF55 +#define XK_Next 0xFF56 /* Next */ +#define XK_Page_Down 0xFF56 +#define XK_End 0xFF57 /* EOL */ +#define XK_Begin 0xFF58 /* BOL */ + + +/* Misc Functions */ + +#define XK_Select 0xFF60 /* Select, mark */ +#define XK_Print 0xFF61 +#define XK_Execute 0xFF62 /* Execute, run, do */ +#define XK_Insert 0xFF63 /* Insert, insert here */ +#define XK_Undo 0xFF65 /* Undo, oops */ +#define XK_Redo 0xFF66 /* redo, again */ +#define XK_Menu 0xFF67 +#define XK_Find 0xFF68 /* Find, search */ +#define XK_Cancel 0xFF69 /* Cancel, stop, abort, exit */ +#define XK_Help 0xFF6A /* Help */ +#define XK_Break 0xFF6B +#define XK_Mode_switch 0xFF7E /* Character set switch */ +#define XK_script_switch 0xFF7E /* Alias for mode_switch */ +#define XK_Num_Lock 0xFF7F + +/* Keypad Functions, keypad numbers cleverly chosen to map to ascii */ + +#define XK_KP_Space 0xFF80 /* space */ +#define XK_KP_Tab 0xFF89 +#define XK_KP_Enter 0xFF8D /* enter */ +#define XK_KP_F1 0xFF91 /* PF1, KP_A, ... */ +#define XK_KP_F2 0xFF92 +#define XK_KP_F3 0xFF93 +#define XK_KP_F4 0xFF94 +#define XK_KP_Home 0xFF95 +#define XK_KP_Left 0xFF96 +#define XK_KP_Up 0xFF97 +#define XK_KP_Right 0xFF98 +#define XK_KP_Down 0xFF99 +#define XK_KP_Prior 0xFF9A +#define XK_KP_Page_Up 0xFF9A +#define XK_KP_Next 0xFF9B +#define XK_KP_Page_Down 0xFF9B +#define XK_KP_End 0xFF9C +#define XK_KP_Begin 0xFF9D +#define XK_KP_Insert 0xFF9E +#define XK_KP_Delete 0xFF9F +#define XK_KP_Equal 0xFFBD /* equals */ +#define XK_KP_Multiply 0xFFAA +#define XK_KP_Add 0xFFAB +#define XK_KP_Separator 0xFFAC /* separator, often comma */ +#define XK_KP_Subtract 0xFFAD +#define XK_KP_Decimal 0xFFAE +#define XK_KP_Divide 0xFFAF + +#define XK_KP_0 0xFFB0 +#define XK_KP_1 0xFFB1 +#define XK_KP_2 0xFFB2 +#define XK_KP_3 0xFFB3 +#define XK_KP_4 0xFFB4 +#define XK_KP_5 0xFFB5 +#define XK_KP_6 0xFFB6 +#define XK_KP_7 0xFFB7 +#define XK_KP_8 0xFFB8 +#define XK_KP_9 0xFFB9 + + + +/* + * Auxilliary Functions; note the duplicate definitions for left and right + * function keys; Sun keyboards and a few other manufactures have such + * function key groups on the left and/or right sides of the keyboard. + * We've not found a keyboard with more than 35 function keys total. + */ + +#define XK_F1 0xFFBE +#define XK_F2 0xFFBF +#define XK_F3 0xFFC0 +#define XK_F4 0xFFC1 +#define XK_F5 0xFFC2 +#define XK_F6 0xFFC3 +#define XK_F7 0xFFC4 +#define XK_F8 0xFFC5 +#define XK_F9 0xFFC6 +#define XK_F10 0xFFC7 +#define XK_F11 0xFFC8 +#define XK_L1 0xFFC8 +#define XK_F12 0xFFC9 +#define XK_L2 0xFFC9 +#define XK_F13 0xFFCA +#define XK_L3 0xFFCA +#define XK_F14 0xFFCB +#define XK_L4 0xFFCB +#define XK_F15 0xFFCC +#define XK_L5 0xFFCC +#define XK_F16 0xFFCD +#define XK_L6 0xFFCD +#define XK_F17 0xFFCE +#define XK_L7 0xFFCE +#define XK_F18 0xFFCF +#define XK_L8 0xFFCF +#define XK_F19 0xFFD0 +#define XK_L9 0xFFD0 +#define XK_F20 0xFFD1 +#define XK_L10 0xFFD1 +#define XK_F21 0xFFD2 +#define XK_R1 0xFFD2 +#define XK_F22 0xFFD3 +#define XK_R2 0xFFD3 +#define XK_F23 0xFFD4 +#define XK_R3 0xFFD4 +#define XK_F24 0xFFD5 +#define XK_R4 0xFFD5 +#define XK_F25 0xFFD6 +#define XK_R5 0xFFD6 +#define XK_F26 0xFFD7 +#define XK_R6 0xFFD7 +#define XK_F27 0xFFD8 +#define XK_R7 0xFFD8 +#define XK_F28 0xFFD9 +#define XK_R8 0xFFD9 +#define XK_F29 0xFFDA +#define XK_R9 0xFFDA +#define XK_F30 0xFFDB +#define XK_R10 0xFFDB +#define XK_F31 0xFFDC +#define XK_R11 0xFFDC +#define XK_F32 0xFFDD +#define XK_R12 0xFFDD +#define XK_F33 0xFFDE +#define XK_R13 0xFFDE +#define XK_F34 0xFFDF +#define XK_R14 0xFFDF +#define XK_F35 0xFFE0 +#define XK_R15 0xFFE0 + +/* Modifiers */ + +#define XK_Shift_L 0xFFE1 /* Left shift */ +#define XK_Shift_R 0xFFE2 /* Right shift */ +#define XK_Control_L 0xFFE3 /* Left control */ +#define XK_Control_R 0xFFE4 /* Right control */ +#define XK_Caps_Lock 0xFFE5 /* Caps lock */ +#define XK_Shift_Lock 0xFFE6 /* Shift lock */ + +#define XK_Meta_L 0xFFE7 /* Left meta */ +#define XK_Meta_R 0xFFE8 /* Right meta */ +#define XK_Alt_L 0xFFE9 /* Left alt */ +#define XK_Alt_R 0xFFEA /* Right alt */ +#define XK_Super_L 0xFFEB /* Left super */ +#define XK_Super_R 0xFFEC /* Right super */ +#define XK_Hyper_L 0xFFED /* Left hyper */ +#define XK_Hyper_R 0xFFEE /* Right hyper */ +#endif /* XK_MISCELLANY */ + +/* + * ISO 9995 Function and Modifier Keys + * Byte 3 = 0xFE + */ + +#ifdef XK_XKB_KEYS +#define XK_ISO_Lock 0xFE01 +#define XK_ISO_Level2_Latch 0xFE02 +#define XK_ISO_Level3_Shift 0xFE03 +#define XK_ISO_Level3_Latch 0xFE04 +#define XK_ISO_Level3_Lock 0xFE05 +#define XK_ISO_Group_Shift 0xFF7E /* Alias for mode_switch */ +#define XK_ISO_Group_Latch 0xFE06 +#define XK_ISO_Group_Lock 0xFE07 +#define XK_ISO_Next_Group 0xFE08 +#define XK_ISO_Next_Group_Lock 0xFE09 +#define XK_ISO_Prev_Group 0xFE0A +#define XK_ISO_Prev_Group_Lock 0xFE0B +#define XK_ISO_First_Group 0xFE0C +#define XK_ISO_First_Group_Lock 0xFE0D +#define XK_ISO_Last_Group 0xFE0E +#define XK_ISO_Last_Group_Lock 0xFE0F + +#define XK_ISO_Left_Tab 0xFE20 +#define XK_ISO_Move_Line_Up 0xFE21 +#define XK_ISO_Move_Line_Down 0xFE22 +#define XK_ISO_Partial_Line_Up 0xFE23 +#define XK_ISO_Partial_Line_Down 0xFE24 +#define XK_ISO_Partial_Space_Left 0xFE25 +#define XK_ISO_Partial_Space_Right 0xFE26 +#define XK_ISO_Set_Margin_Left 0xFE27 +#define XK_ISO_Set_Margin_Right 0xFE28 +#define XK_ISO_Release_Margin_Left 0xFE29 +#define XK_ISO_Release_Margin_Right 0xFE2A +#define XK_ISO_Release_Both_Margins 0xFE2B +#define XK_ISO_Fast_Cursor_Left 0xFE2C +#define XK_ISO_Fast_Cursor_Right 0xFE2D +#define XK_ISO_Fast_Cursor_Up 0xFE2E +#define XK_ISO_Fast_Cursor_Down 0xFE2F +#define XK_ISO_Continuous_Underline 0xFE30 +#define XK_ISO_Discontinuous_Underline 0xFE31 +#define XK_ISO_Emphasize 0xFE32 +#define XK_ISO_Center_Object 0xFE33 +#define XK_ISO_Enter 0xFE34 + +#define XK_dead_grave 0xFE50 +#define XK_dead_acute 0xFE51 +#define XK_dead_circumflex 0xFE52 +#define XK_dead_tilde 0xFE53 +#define XK_dead_macron 0xFE54 +#define XK_dead_breve 0xFE55 +#define XK_dead_abovedot 0xFE56 +#define XK_dead_diaeresis 0xFE57 +#define XK_dead_abovering 0xFE58 +#define XK_dead_doubleacute 0xFE59 +#define XK_dead_caron 0xFE5A +#define XK_dead_cedilla 0xFE5B +#define XK_dead_ogonek 0xFE5C +#define XK_dead_iota 0xFE5D +#define XK_dead_voiced_sound 0xFE5E +#define XK_dead_semivoiced_sound 0xFE5F +#define XK_dead_belowdot 0xFE60 + +#define XK_First_Virtual_Screen 0xFED0 +#define XK_Prev_Virtual_Screen 0xFED1 +#define XK_Next_Virtual_Screen 0xFED2 +#define XK_Last_Virtual_Screen 0xFED4 +#define XK_Terminate_Server 0xFED5 + +#define XK_AccessX_Enable 0xFE70 +#define XK_AccessX_Feedback_Enable 0xFE71 +#define XK_RepeatKeys_Enable 0xFE72 +#define XK_SlowKeys_Enable 0xFE73 +#define XK_BounceKeys_Enable 0xFE74 +#define XK_StickyKeys_Enable 0xFE75 +#define XK_MouseKeys_Enable 0xFE76 +#define XK_MouseKeys_Accel_Enable 0xFE77 +#define XK_Overlay1_Enable 0xFE78 +#define XK_Overlay2_Enable 0xFE79 +#define XK_AudibleBell_Enable 0xFE7A + +#define XK_Pointer_Left 0xFEE0 +#define XK_Pointer_Right 0xFEE1 +#define XK_Pointer_Up 0xFEE2 +#define XK_Pointer_Down 0xFEE3 +#define XK_Pointer_UpLeft 0xFEE4 +#define XK_Pointer_UpRight 0xFEE5 +#define XK_Pointer_DownLeft 0xFEE6 +#define XK_Pointer_DownRight 0xFEE7 +#define XK_Pointer_Button_Dflt 0xFEE8 +#define XK_Pointer_Button1 0xFEE9 +#define XK_Pointer_Button2 0xFEEA +#define XK_Pointer_Button3 0xFEEB +#define XK_Pointer_Button4 0xFEEC +#define XK_Pointer_Button5 0xFEED +#define XK_Pointer_DblClick_Dflt 0xFEEE +#define XK_Pointer_DblClick1 0xFEEF +#define XK_Pointer_DblClick2 0xFEF0 +#define XK_Pointer_DblClick3 0xFEF1 +#define XK_Pointer_DblClick4 0xFEF2 +#define XK_Pointer_DblClick5 0xFEF3 +#define XK_Pointer_Drag_Dflt 0xFEF4 +#define XK_Pointer_Drag1 0xFEF5 +#define XK_Pointer_Drag2 0xFEF6 +#define XK_Pointer_Drag3 0xFEF7 +#define XK_Pointer_Drag4 0xFEF8 +#define XK_Pointer_Drag5 0xFEFD + +#define XK_Pointer_EnableKeys 0xFEF9 +#define XK_Pointer_Accelerate 0xFEFA +#define XK_Pointer_DfltBtnNext 0xFEFB +#define XK_Pointer_DfltBtnPrev 0xFEFC + +#endif + +/* + * 3270 Terminal Keys + * Byte 3 = 0xFD + */ + +#ifdef XK_3270 +#define XK_3270_Duplicate 0xFD01 +#define XK_3270_FieldMark 0xFD02 +#define XK_3270_Right2 0xFD03 +#define XK_3270_Left2 0xFD04 +#define XK_3270_BackTab 0xFD05 +#define XK_3270_EraseEOF 0xFD06 +#define XK_3270_EraseInput 0xFD07 +#define XK_3270_Reset 0xFD08 +#define XK_3270_Quit 0xFD09 +#define XK_3270_PA1 0xFD0A +#define XK_3270_PA2 0xFD0B +#define XK_3270_PA3 0xFD0C +#define XK_3270_Test 0xFD0D +#define XK_3270_Attn 0xFD0E +#define XK_3270_CursorBlink 0xFD0F +#define XK_3270_AltCursor 0xFD10 +#define XK_3270_KeyClick 0xFD11 +#define XK_3270_Jump 0xFD12 +#define XK_3270_Ident 0xFD13 +#define XK_3270_Rule 0xFD14 +#define XK_3270_Copy 0xFD15 +#define XK_3270_Play 0xFD16 +#define XK_3270_Setup 0xFD17 +#define XK_3270_Record 0xFD18 +#define XK_3270_ChangeScreen 0xFD19 +#define XK_3270_DeleteWord 0xFD1A +#define XK_3270_ExSelect 0xFD1B +#define XK_3270_CursorSelect 0xFD1C +#define XK_3270_PrintScreen 0xFD1D +#define XK_3270_Enter 0xFD1E +#endif + +/* + * Latin 1 + * Byte 3 = 0 + */ +#ifdef XK_LATIN1 +#define XK_space 0x020 +#define XK_exclam 0x021 +#define XK_quotedbl 0x022 +#define XK_numbersign 0x023 +#define XK_dollar 0x024 +#define XK_percent 0x025 +#define XK_ampersand 0x026 +#define XK_apostrophe 0x027 +#define XK_quoteright 0x027 /* deprecated */ +#define XK_parenleft 0x028 +#define XK_parenright 0x029 +#define XK_asterisk 0x02a +#define XK_plus 0x02b +#define XK_comma 0x02c +#define XK_minus 0x02d +#define XK_period 0x02e +#define XK_slash 0x02f +#define XK_0 0x030 +#define XK_1 0x031 +#define XK_2 0x032 +#define XK_3 0x033 +#define XK_4 0x034 +#define XK_5 0x035 +#define XK_6 0x036 +#define XK_7 0x037 +#define XK_8 0x038 +#define XK_9 0x039 +#define XK_colon 0x03a +#define XK_semicolon 0x03b +#define XK_less 0x03c +#define XK_equal 0x03d +#define XK_greater 0x03e +#define XK_question 0x03f +#define XK_at 0x040 +#define XK_A 0x041 +#define XK_B 0x042 +#define XK_C 0x043 +#define XK_D 0x044 +#define XK_E 0x045 +#define XK_F 0x046 +#define XK_G 0x047 +#define XK_H 0x048 +#define XK_I 0x049 +#define XK_J 0x04a +#define XK_K 0x04b +#define XK_L 0x04c +#define XK_M 0x04d +#define XK_N 0x04e +#define XK_O 0x04f +#define XK_P 0x050 +#define XK_Q 0x051 +#define XK_R 0x052 +#define XK_S 0x053 +#define XK_T 0x054 +#define XK_U 0x055 +#define XK_V 0x056 +#define XK_W 0x057 +#define XK_X 0x058 +#define XK_Y 0x059 +#define XK_Z 0x05a +#define XK_bracketleft 0x05b +#define XK_backslash 0x05c +#define XK_bracketright 0x05d +#define XK_asciicircum 0x05e +#define XK_underscore 0x05f +#define XK_grave 0x060 +#define XK_quoteleft 0x060 /* deprecated */ +#define XK_a 0x061 +#define XK_b 0x062 +#define XK_c 0x063 +#define XK_d 0x064 +#define XK_e 0x065 +#define XK_f 0x066 +#define XK_g 0x067 +#define XK_h 0x068 +#define XK_i 0x069 +#define XK_j 0x06a +#define XK_k 0x06b +#define XK_l 0x06c +#define XK_m 0x06d +#define XK_n 0x06e +#define XK_o 0x06f +#define XK_p 0x070 +#define XK_q 0x071 +#define XK_r 0x072 +#define XK_s 0x073 +#define XK_t 0x074 +#define XK_u 0x075 +#define XK_v 0x076 +#define XK_w 0x077 +#define XK_x 0x078 +#define XK_y 0x079 +#define XK_z 0x07a +#define XK_braceleft 0x07b +#define XK_bar 0x07c +#define XK_braceright 0x07d +#define XK_asciitilde 0x07e + +#define XK_nobreakspace 0x0a0 +#define XK_exclamdown 0x0a1 +#define XK_cent 0x0a2 +#define XK_sterling 0x0a3 +#define XK_currency 0x0a4 +#define XK_yen 0x0a5 +#define XK_brokenbar 0x0a6 +#define XK_section 0x0a7 +#define XK_diaeresis 0x0a8 +#define XK_copyright 0x0a9 +#define XK_ordfeminine 0x0aa +#define XK_guillemotleft 0x0ab /* left angle quotation mark */ +#define XK_notsign 0x0ac +#define XK_hyphen 0x0ad +#define XK_registered 0x0ae +#define XK_macron 0x0af +#define XK_degree 0x0b0 +#define XK_plusminus 0x0b1 +#define XK_twosuperior 0x0b2 +#define XK_threesuperior 0x0b3 +#define XK_acute 0x0b4 +#define XK_mu 0x0b5 +#define XK_paragraph 0x0b6 +#define XK_periodcentered 0x0b7 +#define XK_cedilla 0x0b8 +#define XK_onesuperior 0x0b9 +#define XK_masculine 0x0ba +#define XK_guillemotright 0x0bb /* right angle quotation mark */ +#define XK_onequarter 0x0bc +#define XK_onehalf 0x0bd +#define XK_threequarters 0x0be +#define XK_questiondown 0x0bf +#define XK_Agrave 0x0c0 +#define XK_Aacute 0x0c1 +#define XK_Acircumflex 0x0c2 +#define XK_Atilde 0x0c3 +#define XK_Adiaeresis 0x0c4 +#define XK_Aring 0x0c5 +#define XK_AE 0x0c6 +#define XK_Ccedilla 0x0c7 +#define XK_Egrave 0x0c8 +#define XK_Eacute 0x0c9 +#define XK_Ecircumflex 0x0ca +#define XK_Ediaeresis 0x0cb +#define XK_Igrave 0x0cc +#define XK_Iacute 0x0cd +#define XK_Icircumflex 0x0ce +#define XK_Idiaeresis 0x0cf +#define XK_ETH 0x0d0 +#define XK_Eth 0x0d0 /* deprecated */ +#define XK_Ntilde 0x0d1 +#define XK_Ograve 0x0d2 +#define XK_Oacute 0x0d3 +#define XK_Ocircumflex 0x0d4 +#define XK_Otilde 0x0d5 +#define XK_Odiaeresis 0x0d6 +#define XK_multiply 0x0d7 +#define XK_Ooblique 0x0d8 +#define XK_Ugrave 0x0d9 +#define XK_Uacute 0x0da +#define XK_Ucircumflex 0x0db +#define XK_Udiaeresis 0x0dc +#define XK_Yacute 0x0dd +#define XK_THORN 0x0de +#define XK_Thorn 0x0de /* deprecated */ +#define XK_ssharp 0x0df +#define XK_agrave 0x0e0 +#define XK_aacute 0x0e1 +#define XK_acircumflex 0x0e2 +#define XK_atilde 0x0e3 +#define XK_adiaeresis 0x0e4 +#define XK_aring 0x0e5 +#define XK_ae 0x0e6 +#define XK_ccedilla 0x0e7 +#define XK_egrave 0x0e8 +#define XK_eacute 0x0e9 +#define XK_ecircumflex 0x0ea +#define XK_ediaeresis 0x0eb +#define XK_igrave 0x0ec +#define XK_iacute 0x0ed +#define XK_icircumflex 0x0ee +#define XK_idiaeresis 0x0ef +#define XK_eth 0x0f0 +#define XK_ntilde 0x0f1 +#define XK_ograve 0x0f2 +#define XK_oacute 0x0f3 +#define XK_ocircumflex 0x0f4 +#define XK_otilde 0x0f5 +#define XK_odiaeresis 0x0f6 +#define XK_division 0x0f7 +#define XK_oslash 0x0f8 +#define XK_ugrave 0x0f9 +#define XK_uacute 0x0fa +#define XK_ucircumflex 0x0fb +#define XK_udiaeresis 0x0fc +#define XK_yacute 0x0fd +#define XK_thorn 0x0fe +#define XK_ydiaeresis 0x0ff +#endif /* XK_LATIN1 */ + +/* + * Latin 2 + * Byte 3 = 1 + */ + +#ifdef XK_LATIN2 +#define XK_Aogonek 0x1a1 +#define XK_breve 0x1a2 +#define XK_Lstroke 0x1a3 +#define XK_Lcaron 0x1a5 +#define XK_Sacute 0x1a6 +#define XK_Scaron 0x1a9 +#define XK_Scedilla 0x1aa +#define XK_Tcaron 0x1ab +#define XK_Zacute 0x1ac +#define XK_Zcaron 0x1ae +#define XK_Zabovedot 0x1af +#define XK_aogonek 0x1b1 +#define XK_ogonek 0x1b2 +#define XK_lstroke 0x1b3 +#define XK_lcaron 0x1b5 +#define XK_sacute 0x1b6 +#define XK_caron 0x1b7 +#define XK_scaron 0x1b9 +#define XK_scedilla 0x1ba +#define XK_tcaron 0x1bb +#define XK_zacute 0x1bc +#define XK_doubleacute 0x1bd +#define XK_zcaron 0x1be +#define XK_zabovedot 0x1bf +#define XK_Racute 0x1c0 +#define XK_Abreve 0x1c3 +#define XK_Lacute 0x1c5 +#define XK_Cacute 0x1c6 +#define XK_Ccaron 0x1c8 +#define XK_Eogonek 0x1ca +#define XK_Ecaron 0x1cc +#define XK_Dcaron 0x1cf +#define XK_Dstroke 0x1d0 +#define XK_Nacute 0x1d1 +#define XK_Ncaron 0x1d2 +#define XK_Odoubleacute 0x1d5 +#define XK_Rcaron 0x1d8 +#define XK_Uring 0x1d9 +#define XK_Udoubleacute 0x1db +#define XK_Tcedilla 0x1de +#define XK_racute 0x1e0 +#define XK_abreve 0x1e3 +#define XK_lacute 0x1e5 +#define XK_cacute 0x1e6 +#define XK_ccaron 0x1e8 +#define XK_eogonek 0x1ea +#define XK_ecaron 0x1ec +#define XK_dcaron 0x1ef +#define XK_dstroke 0x1f0 +#define XK_nacute 0x1f1 +#define XK_ncaron 0x1f2 +#define XK_odoubleacute 0x1f5 +#define XK_udoubleacute 0x1fb +#define XK_rcaron 0x1f8 +#define XK_uring 0x1f9 +#define XK_tcedilla 0x1fe +#define XK_abovedot 0x1ff +#endif /* XK_LATIN2 */ + +/* + * Latin 3 + * Byte 3 = 2 + */ + +#ifdef XK_LATIN3 +#define XK_Hstroke 0x2a1 +#define XK_Hcircumflex 0x2a6 +#define XK_Iabovedot 0x2a9 +#define XK_Gbreve 0x2ab +#define XK_Jcircumflex 0x2ac +#define XK_hstroke 0x2b1 +#define XK_hcircumflex 0x2b6 +#define XK_idotless 0x2b9 +#define XK_gbreve 0x2bb +#define XK_jcircumflex 0x2bc +#define XK_Cabovedot 0x2c5 +#define XK_Ccircumflex 0x2c6 +#define XK_Gabovedot 0x2d5 +#define XK_Gcircumflex 0x2d8 +#define XK_Ubreve 0x2dd +#define XK_Scircumflex 0x2de +#define XK_cabovedot 0x2e5 +#define XK_ccircumflex 0x2e6 +#define XK_gabovedot 0x2f5 +#define XK_gcircumflex 0x2f8 +#define XK_ubreve 0x2fd +#define XK_scircumflex 0x2fe +#endif /* XK_LATIN3 */ + + +/* + * Latin 4 + * Byte 3 = 3 + */ + +#ifdef XK_LATIN4 +#define XK_kra 0x3a2 +#define XK_kappa 0x3a2 /* deprecated */ +#define XK_Rcedilla 0x3a3 +#define XK_Itilde 0x3a5 +#define XK_Lcedilla 0x3a6 +#define XK_Emacron 0x3aa +#define XK_Gcedilla 0x3ab +#define XK_Tslash 0x3ac +#define XK_rcedilla 0x3b3 +#define XK_itilde 0x3b5 +#define XK_lcedilla 0x3b6 +#define XK_emacron 0x3ba +#define XK_gcedilla 0x3bb +#define XK_tslash 0x3bc +#define XK_ENG 0x3bd +#define XK_eng 0x3bf +#define XK_Amacron 0x3c0 +#define XK_Iogonek 0x3c7 +#define XK_Eabovedot 0x3cc +#define XK_Imacron 0x3cf +#define XK_Ncedilla 0x3d1 +#define XK_Omacron 0x3d2 +#define XK_Kcedilla 0x3d3 +#define XK_Uogonek 0x3d9 +#define XK_Utilde 0x3dd +#define XK_Umacron 0x3de +#define XK_amacron 0x3e0 +#define XK_iogonek 0x3e7 +#define XK_eabovedot 0x3ec +#define XK_imacron 0x3ef +#define XK_ncedilla 0x3f1 +#define XK_omacron 0x3f2 +#define XK_kcedilla 0x3f3 +#define XK_uogonek 0x3f9 +#define XK_utilde 0x3fd +#define XK_umacron 0x3fe +#endif /* XK_LATIN4 */ + +/* + * Katakana + * Byte 3 = 4 + */ + +#ifdef XK_KATAKANA +#define XK_overline 0x47e +#define XK_kana_fullstop 0x4a1 +#define XK_kana_openingbracket 0x4a2 +#define XK_kana_closingbracket 0x4a3 +#define XK_kana_comma 0x4a4 +#define XK_kana_conjunctive 0x4a5 +#define XK_kana_middledot 0x4a5 /* deprecated */ +#define XK_kana_WO 0x4a6 +#define XK_kana_a 0x4a7 +#define XK_kana_i 0x4a8 +#define XK_kana_u 0x4a9 +#define XK_kana_e 0x4aa +#define XK_kana_o 0x4ab +#define XK_kana_ya 0x4ac +#define XK_kana_yu 0x4ad +#define XK_kana_yo 0x4ae +#define XK_kana_tsu 0x4af +#define XK_kana_tu 0x4af /* deprecated */ +#define XK_prolongedsound 0x4b0 +#define XK_kana_A 0x4b1 +#define XK_kana_I 0x4b2 +#define XK_kana_U 0x4b3 +#define XK_kana_E 0x4b4 +#define XK_kana_O 0x4b5 +#define XK_kana_KA 0x4b6 +#define XK_kana_KI 0x4b7 +#define XK_kana_KU 0x4b8 +#define XK_kana_KE 0x4b9 +#define XK_kana_KO 0x4ba +#define XK_kana_SA 0x4bb +#define XK_kana_SHI 0x4bc +#define XK_kana_SU 0x4bd +#define XK_kana_SE 0x4be +#define XK_kana_SO 0x4bf +#define XK_kana_TA 0x4c0 +#define XK_kana_CHI 0x4c1 +#define XK_kana_TI 0x4c1 /* deprecated */ +#define XK_kana_TSU 0x4c2 +#define XK_kana_TU 0x4c2 /* deprecated */ +#define XK_kana_TE 0x4c3 +#define XK_kana_TO 0x4c4 +#define XK_kana_NA 0x4c5 +#define XK_kana_NI 0x4c6 +#define XK_kana_NU 0x4c7 +#define XK_kana_NE 0x4c8 +#define XK_kana_NO 0x4c9 +#define XK_kana_HA 0x4ca +#define XK_kana_HI 0x4cb +#define XK_kana_FU 0x4cc +#define XK_kana_HU 0x4cc /* deprecated */ +#define XK_kana_HE 0x4cd +#define XK_kana_HO 0x4ce +#define XK_kana_MA 0x4cf +#define XK_kana_MI 0x4d0 +#define XK_kana_MU 0x4d1 +#define XK_kana_ME 0x4d2 +#define XK_kana_MO 0x4d3 +#define XK_kana_YA 0x4d4 +#define XK_kana_YU 0x4d5 +#define XK_kana_YO 0x4d6 +#define XK_kana_RA 0x4d7 +#define XK_kana_RI 0x4d8 +#define XK_kana_RU 0x4d9 +#define XK_kana_RE 0x4da +#define XK_kana_RO 0x4db +#define XK_kana_WA 0x4dc +#define XK_kana_N 0x4dd +#define XK_voicedsound 0x4de +#define XK_semivoicedsound 0x4df +#define XK_kana_switch 0xFF7E /* Alias for mode_switch */ +#endif /* XK_KATAKANA */ + +/* + * Arabic + * Byte 3 = 5 + */ + +#ifdef XK_ARABIC +#define XK_Arabic_comma 0x5ac +#define XK_Arabic_semicolon 0x5bb +#define XK_Arabic_question_mark 0x5bf +#define XK_Arabic_hamza 0x5c1 +#define XK_Arabic_maddaonalef 0x5c2 +#define XK_Arabic_hamzaonalef 0x5c3 +#define XK_Arabic_hamzaonwaw 0x5c4 +#define XK_Arabic_hamzaunderalef 0x5c5 +#define XK_Arabic_hamzaonyeh 0x5c6 +#define XK_Arabic_alef 0x5c7 +#define XK_Arabic_beh 0x5c8 +#define XK_Arabic_tehmarbuta 0x5c9 +#define XK_Arabic_teh 0x5ca +#define XK_Arabic_theh 0x5cb +#define XK_Arabic_jeem 0x5cc +#define XK_Arabic_hah 0x5cd +#define XK_Arabic_khah 0x5ce +#define XK_Arabic_dal 0x5cf +#define XK_Arabic_thal 0x5d0 +#define XK_Arabic_ra 0x5d1 +#define XK_Arabic_zain 0x5d2 +#define XK_Arabic_seen 0x5d3 +#define XK_Arabic_sheen 0x5d4 +#define XK_Arabic_sad 0x5d5 +#define XK_Arabic_dad 0x5d6 +#define XK_Arabic_tah 0x5d7 +#define XK_Arabic_zah 0x5d8 +#define XK_Arabic_ain 0x5d9 +#define XK_Arabic_ghain 0x5da +#define XK_Arabic_tatweel 0x5e0 +#define XK_Arabic_feh 0x5e1 +#define XK_Arabic_qaf 0x5e2 +#define XK_Arabic_kaf 0x5e3 +#define XK_Arabic_lam 0x5e4 +#define XK_Arabic_meem 0x5e5 +#define XK_Arabic_noon 0x5e6 +#define XK_Arabic_ha 0x5e7 +#define XK_Arabic_heh 0x5e7 /* deprecated */ +#define XK_Arabic_waw 0x5e8 +#define XK_Arabic_alefmaksura 0x5e9 +#define XK_Arabic_yeh 0x5ea +#define XK_Arabic_fathatan 0x5eb +#define XK_Arabic_dammatan 0x5ec +#define XK_Arabic_kasratan 0x5ed +#define XK_Arabic_fatha 0x5ee +#define XK_Arabic_damma 0x5ef +#define XK_Arabic_kasra 0x5f0 +#define XK_Arabic_shadda 0x5f1 +#define XK_Arabic_sukun 0x5f2 +#define XK_Arabic_switch 0xFF7E /* Alias for mode_switch */ +#endif /* XK_ARABIC */ + +/* + * Cyrillic + * Byte 3 = 6 + */ +#ifdef XK_CYRILLIC +#define XK_Serbian_dje 0x6a1 +#define XK_Macedonia_gje 0x6a2 +#define XK_Cyrillic_io 0x6a3 +#define XK_Ukrainian_ie 0x6a4 +#define XK_Ukranian_je 0x6a4 /* deprecated */ +#define XK_Macedonia_dse 0x6a5 +#define XK_Ukrainian_i 0x6a6 +#define XK_Ukranian_i 0x6a6 /* deprecated */ +#define XK_Ukrainian_yi 0x6a7 +#define XK_Ukranian_yi 0x6a7 /* deprecated */ +#define XK_Cyrillic_je 0x6a8 +#define XK_Serbian_je 0x6a8 /* deprecated */ +#define XK_Cyrillic_lje 0x6a9 +#define XK_Serbian_lje 0x6a9 /* deprecated */ +#define XK_Cyrillic_nje 0x6aa +#define XK_Serbian_nje 0x6aa /* deprecated */ +#define XK_Serbian_tshe 0x6ab +#define XK_Macedonia_kje 0x6ac +#define XK_Byelorussian_shortu 0x6ae +#define XK_Cyrillic_dzhe 0x6af +#define XK_Serbian_dze 0x6af /* deprecated */ +#define XK_numerosign 0x6b0 +#define XK_Serbian_DJE 0x6b1 +#define XK_Macedonia_GJE 0x6b2 +#define XK_Cyrillic_IO 0x6b3 +#define XK_Ukrainian_IE 0x6b4 +#define XK_Ukranian_JE 0x6b4 /* deprecated */ +#define XK_Macedonia_DSE 0x6b5 +#define XK_Ukrainian_I 0x6b6 +#define XK_Ukranian_I 0x6b6 /* deprecated */ +#define XK_Ukrainian_YI 0x6b7 +#define XK_Ukranian_YI 0x6b7 /* deprecated */ +#define XK_Cyrillic_JE 0x6b8 +#define XK_Serbian_JE 0x6b8 /* deprecated */ +#define XK_Cyrillic_LJE 0x6b9 +#define XK_Serbian_LJE 0x6b9 /* deprecated */ +#define XK_Cyrillic_NJE 0x6ba +#define XK_Serbian_NJE 0x6ba /* deprecated */ +#define XK_Serbian_TSHE 0x6bb +#define XK_Macedonia_KJE 0x6bc +#define XK_Byelorussian_SHORTU 0x6be +#define XK_Cyrillic_DZHE 0x6bf +#define XK_Serbian_DZE 0x6bf /* deprecated */ +#define XK_Cyrillic_yu 0x6c0 +#define XK_Cyrillic_a 0x6c1 +#define XK_Cyrillic_be 0x6c2 +#define XK_Cyrillic_tse 0x6c3 +#define XK_Cyrillic_de 0x6c4 +#define XK_Cyrillic_ie 0x6c5 +#define XK_Cyrillic_ef 0x6c6 +#define XK_Cyrillic_ghe 0x6c7 +#define XK_Cyrillic_ha 0x6c8 +#define XK_Cyrillic_i 0x6c9 +#define XK_Cyrillic_shorti 0x6ca +#define XK_Cyrillic_ka 0x6cb +#define XK_Cyrillic_el 0x6cc +#define XK_Cyrillic_em 0x6cd +#define XK_Cyrillic_en 0x6ce +#define XK_Cyrillic_o 0x6cf +#define XK_Cyrillic_pe 0x6d0 +#define XK_Cyrillic_ya 0x6d1 +#define XK_Cyrillic_er 0x6d2 +#define XK_Cyrillic_es 0x6d3 +#define XK_Cyrillic_te 0x6d4 +#define XK_Cyrillic_u 0x6d5 +#define XK_Cyrillic_zhe 0x6d6 +#define XK_Cyrillic_ve 0x6d7 +#define XK_Cyrillic_softsign 0x6d8 +#define XK_Cyrillic_yeru 0x6d9 +#define XK_Cyrillic_ze 0x6da +#define XK_Cyrillic_sha 0x6db +#define XK_Cyrillic_e 0x6dc +#define XK_Cyrillic_shcha 0x6dd +#define XK_Cyrillic_che 0x6de +#define XK_Cyrillic_hardsign 0x6df +#define XK_Cyrillic_YU 0x6e0 +#define XK_Cyrillic_A 0x6e1 +#define XK_Cyrillic_BE 0x6e2 +#define XK_Cyrillic_TSE 0x6e3 +#define XK_Cyrillic_DE 0x6e4 +#define XK_Cyrillic_IE 0x6e5 +#define XK_Cyrillic_EF 0x6e6 +#define XK_Cyrillic_GHE 0x6e7 +#define XK_Cyrillic_HA 0x6e8 +#define XK_Cyrillic_I 0x6e9 +#define XK_Cyrillic_SHORTI 0x6ea +#define XK_Cyrillic_KA 0x6eb +#define XK_Cyrillic_EL 0x6ec +#define XK_Cyrillic_EM 0x6ed +#define XK_Cyrillic_EN 0x6ee +#define XK_Cyrillic_O 0x6ef +#define XK_Cyrillic_PE 0x6f0 +#define XK_Cyrillic_YA 0x6f1 +#define XK_Cyrillic_ER 0x6f2 +#define XK_Cyrillic_ES 0x6f3 +#define XK_Cyrillic_TE 0x6f4 +#define XK_Cyrillic_U 0x6f5 +#define XK_Cyrillic_ZHE 0x6f6 +#define XK_Cyrillic_VE 0x6f7 +#define XK_Cyrillic_SOFTSIGN 0x6f8 +#define XK_Cyrillic_YERU 0x6f9 +#define XK_Cyrillic_ZE 0x6fa +#define XK_Cyrillic_SHA 0x6fb +#define XK_Cyrillic_E 0x6fc +#define XK_Cyrillic_SHCHA 0x6fd +#define XK_Cyrillic_CHE 0x6fe +#define XK_Cyrillic_HARDSIGN 0x6ff +#endif /* XK_CYRILLIC */ + +/* + * Greek + * Byte 3 = 7 + */ + +#ifdef XK_GREEK +#define XK_Greek_ALPHAaccent 0x7a1 +#define XK_Greek_EPSILONaccent 0x7a2 +#define XK_Greek_ETAaccent 0x7a3 +#define XK_Greek_IOTAaccent 0x7a4 +#define XK_Greek_IOTAdiaeresis 0x7a5 +#define XK_Greek_OMICRONaccent 0x7a7 +#define XK_Greek_UPSILONaccent 0x7a8 +#define XK_Greek_UPSILONdieresis 0x7a9 +#define XK_Greek_OMEGAaccent 0x7ab +#define XK_Greek_accentdieresis 0x7ae +#define XK_Greek_horizbar 0x7af +#define XK_Greek_alphaaccent 0x7b1 +#define XK_Greek_epsilonaccent 0x7b2 +#define XK_Greek_etaaccent 0x7b3 +#define XK_Greek_iotaaccent 0x7b4 +#define XK_Greek_iotadieresis 0x7b5 +#define XK_Greek_iotaaccentdieresis 0x7b6 +#define XK_Greek_omicronaccent 0x7b7 +#define XK_Greek_upsilonaccent 0x7b8 +#define XK_Greek_upsilondieresis 0x7b9 +#define XK_Greek_upsilonaccentdieresis 0x7ba +#define XK_Greek_omegaaccent 0x7bb +#define XK_Greek_ALPHA 0x7c1 +#define XK_Greek_BETA 0x7c2 +#define XK_Greek_GAMMA 0x7c3 +#define XK_Greek_DELTA 0x7c4 +#define XK_Greek_EPSILON 0x7c5 +#define XK_Greek_ZETA 0x7c6 +#define XK_Greek_ETA 0x7c7 +#define XK_Greek_THETA 0x7c8 +#define XK_Greek_IOTA 0x7c9 +#define XK_Greek_KAPPA 0x7ca +#define XK_Greek_LAMDA 0x7cb +#define XK_Greek_LAMBDA 0x7cb +#define XK_Greek_MU 0x7cc +#define XK_Greek_NU 0x7cd +#define XK_Greek_XI 0x7ce +#define XK_Greek_OMICRON 0x7cf +#define XK_Greek_PI 0x7d0 +#define XK_Greek_RHO 0x7d1 +#define XK_Greek_SIGMA 0x7d2 +#define XK_Greek_TAU 0x7d4 +#define XK_Greek_UPSILON 0x7d5 +#define XK_Greek_PHI 0x7d6 +#define XK_Greek_CHI 0x7d7 +#define XK_Greek_PSI 0x7d8 +#define XK_Greek_OMEGA 0x7d9 +#define XK_Greek_alpha 0x7e1 +#define XK_Greek_beta 0x7e2 +#define XK_Greek_gamma 0x7e3 +#define XK_Greek_delta 0x7e4 +#define XK_Greek_epsilon 0x7e5 +#define XK_Greek_zeta 0x7e6 +#define XK_Greek_eta 0x7e7 +#define XK_Greek_theta 0x7e8 +#define XK_Greek_iota 0x7e9 +#define XK_Greek_kappa 0x7ea +#define XK_Greek_lamda 0x7eb +#define XK_Greek_lambda 0x7eb +#define XK_Greek_mu 0x7ec +#define XK_Greek_nu 0x7ed +#define XK_Greek_xi 0x7ee +#define XK_Greek_omicron 0x7ef +#define XK_Greek_pi 0x7f0 +#define XK_Greek_rho 0x7f1 +#define XK_Greek_sigma 0x7f2 +#define XK_Greek_finalsmallsigma 0x7f3 +#define XK_Greek_tau 0x7f4 +#define XK_Greek_upsilon 0x7f5 +#define XK_Greek_phi 0x7f6 +#define XK_Greek_chi 0x7f7 +#define XK_Greek_psi 0x7f8 +#define XK_Greek_omega 0x7f9 +#define XK_Greek_switch 0xFF7E /* Alias for mode_switch */ +#endif /* XK_GREEK */ + +/* + * Technical + * Byte 3 = 8 + */ + +#ifdef XK_TECHNICAL +#define XK_leftradical 0x8a1 +#define XK_topleftradical 0x8a2 +#define XK_horizconnector 0x8a3 +#define XK_topintegral 0x8a4 +#define XK_botintegral 0x8a5 +#define XK_vertconnector 0x8a6 +#define XK_topleftsqbracket 0x8a7 +#define XK_botleftsqbracket 0x8a8 +#define XK_toprightsqbracket 0x8a9 +#define XK_botrightsqbracket 0x8aa +#define XK_topleftparens 0x8ab +#define XK_botleftparens 0x8ac +#define XK_toprightparens 0x8ad +#define XK_botrightparens 0x8ae +#define XK_leftmiddlecurlybrace 0x8af +#define XK_rightmiddlecurlybrace 0x8b0 +#define XK_topleftsummation 0x8b1 +#define XK_botleftsummation 0x8b2 +#define XK_topvertsummationconnector 0x8b3 +#define XK_botvertsummationconnector 0x8b4 +#define XK_toprightsummation 0x8b5 +#define XK_botrightsummation 0x8b6 +#define XK_rightmiddlesummation 0x8b7 +#define XK_lessthanequal 0x8bc +#define XK_notequal 0x8bd +#define XK_greaterthanequal 0x8be +#define XK_integral 0x8bf +#define XK_therefore 0x8c0 +#define XK_variation 0x8c1 +#define XK_infinity 0x8c2 +#define XK_nabla 0x8c5 +#define XK_approximate 0x8c8 +#define XK_similarequal 0x8c9 +#define XK_ifonlyif 0x8cd +#define XK_implies 0x8ce +#define XK_identical 0x8cf +#define XK_radical 0x8d6 +#define XK_includedin 0x8da +#define XK_includes 0x8db +#define XK_intersection 0x8dc +#define XK_union 0x8dd +#define XK_logicaland 0x8de +#define XK_logicalor 0x8df +#define XK_partialderivative 0x8ef +#define XK_function 0x8f6 +#define XK_leftarrow 0x8fb +#define XK_uparrow 0x8fc +#define XK_rightarrow 0x8fd +#define XK_downarrow 0x8fe +#endif /* XK_TECHNICAL */ + +/* + * Special + * Byte 3 = 9 + */ + +#ifdef XK_SPECIAL +#define XK_blank 0x9df +#define XK_soliddiamond 0x9e0 +#define XK_checkerboard 0x9e1 +#define XK_ht 0x9e2 +#define XK_ff 0x9e3 +#define XK_cr 0x9e4 +#define XK_lf 0x9e5 +#define XK_nl 0x9e8 +#define XK_vt 0x9e9 +#define XK_lowrightcorner 0x9ea +#define XK_uprightcorner 0x9eb +#define XK_upleftcorner 0x9ec +#define XK_lowleftcorner 0x9ed +#define XK_crossinglines 0x9ee +#define XK_horizlinescan1 0x9ef +#define XK_horizlinescan3 0x9f0 +#define XK_horizlinescan5 0x9f1 +#define XK_horizlinescan7 0x9f2 +#define XK_horizlinescan9 0x9f3 +#define XK_leftt 0x9f4 +#define XK_rightt 0x9f5 +#define XK_bott 0x9f6 +#define XK_topt 0x9f7 +#define XK_vertbar 0x9f8 +#endif /* XK_SPECIAL */ + +/* + * Publishing + * Byte 3 = a + */ + +#ifdef XK_PUBLISHING +#define XK_emspace 0xaa1 +#define XK_enspace 0xaa2 +#define XK_em3space 0xaa3 +#define XK_em4space 0xaa4 +#define XK_digitspace 0xaa5 +#define XK_punctspace 0xaa6 +#define XK_thinspace 0xaa7 +#define XK_hairspace 0xaa8 +#define XK_emdash 0xaa9 +#define XK_endash 0xaaa +#define XK_signifblank 0xaac +#define XK_ellipsis 0xaae +#define XK_doubbaselinedot 0xaaf +#define XK_onethird 0xab0 +#define XK_twothirds 0xab1 +#define XK_onefifth 0xab2 +#define XK_twofifths 0xab3 +#define XK_threefifths 0xab4 +#define XK_fourfifths 0xab5 +#define XK_onesixth 0xab6 +#define XK_fivesixths 0xab7 +#define XK_careof 0xab8 +#define XK_figdash 0xabb +#define XK_leftanglebracket 0xabc +#define XK_decimalpoint 0xabd +#define XK_rightanglebracket 0xabe +#define XK_marker 0xabf +#define XK_oneeighth 0xac3 +#define XK_threeeighths 0xac4 +#define XK_fiveeighths 0xac5 +#define XK_seveneighths 0xac6 +#define XK_trademark 0xac9 +#define XK_signaturemark 0xaca +#define XK_trademarkincircle 0xacb +#define XK_leftopentriangle 0xacc +#define XK_rightopentriangle 0xacd +#define XK_emopencircle 0xace +#define XK_emopenrectangle 0xacf +#define XK_leftsinglequotemark 0xad0 +#define XK_rightsinglequotemark 0xad1 +#define XK_leftdoublequotemark 0xad2 +#define XK_rightdoublequotemark 0xad3 +#define XK_prescription 0xad4 +#define XK_minutes 0xad6 +#define XK_seconds 0xad7 +#define XK_latincross 0xad9 +#define XK_hexagram 0xada +#define XK_filledrectbullet 0xadb +#define XK_filledlefttribullet 0xadc +#define XK_filledrighttribullet 0xadd +#define XK_emfilledcircle 0xade +#define XK_emfilledrect 0xadf +#define XK_enopencircbullet 0xae0 +#define XK_enopensquarebullet 0xae1 +#define XK_openrectbullet 0xae2 +#define XK_opentribulletup 0xae3 +#define XK_opentribulletdown 0xae4 +#define XK_openstar 0xae5 +#define XK_enfilledcircbullet 0xae6 +#define XK_enfilledsqbullet 0xae7 +#define XK_filledtribulletup 0xae8 +#define XK_filledtribulletdown 0xae9 +#define XK_leftpointer 0xaea +#define XK_rightpointer 0xaeb +#define XK_club 0xaec +#define XK_diamond 0xaed +#define XK_heart 0xaee +#define XK_maltesecross 0xaf0 +#define XK_dagger 0xaf1 +#define XK_doubledagger 0xaf2 +#define XK_checkmark 0xaf3 +#define XK_ballotcross 0xaf4 +#define XK_musicalsharp 0xaf5 +#define XK_musicalflat 0xaf6 +#define XK_malesymbol 0xaf7 +#define XK_femalesymbol 0xaf8 +#define XK_telephone 0xaf9 +#define XK_telephonerecorder 0xafa +#define XK_phonographcopyright 0xafb +#define XK_caret 0xafc +#define XK_singlelowquotemark 0xafd +#define XK_doublelowquotemark 0xafe +#define XK_cursor 0xaff +#endif /* XK_PUBLISHING */ + +/* + * APL + * Byte 3 = b + */ + +#ifdef XK_APL +#define XK_leftcaret 0xba3 +#define XK_rightcaret 0xba6 +#define XK_downcaret 0xba8 +#define XK_upcaret 0xba9 +#define XK_overbar 0xbc0 +#define XK_downtack 0xbc2 +#define XK_upshoe 0xbc3 +#define XK_downstile 0xbc4 +#define XK_underbar 0xbc6 +#define XK_jot 0xbca +#define XK_quad 0xbcc +#define XK_uptack 0xbce +#define XK_circle 0xbcf +#define XK_upstile 0xbd3 +#define XK_downshoe 0xbd6 +#define XK_rightshoe 0xbd8 +#define XK_leftshoe 0xbda +#define XK_lefttack 0xbdc +#define XK_righttack 0xbfc +#endif /* XK_APL */ + +/* + * Hebrew + * Byte 3 = c + */ + +#ifdef XK_HEBREW +#define XK_hebrew_doublelowline 0xcdf +#define XK_hebrew_aleph 0xce0 +#define XK_hebrew_bet 0xce1 +#define XK_hebrew_beth 0xce1 /* deprecated */ +#define XK_hebrew_gimel 0xce2 +#define XK_hebrew_gimmel 0xce2 /* deprecated */ +#define XK_hebrew_dalet 0xce3 +#define XK_hebrew_daleth 0xce3 /* deprecated */ +#define XK_hebrew_he 0xce4 +#define XK_hebrew_waw 0xce5 +#define XK_hebrew_zain 0xce6 +#define XK_hebrew_zayin 0xce6 /* deprecated */ +#define XK_hebrew_chet 0xce7 +#define XK_hebrew_het 0xce7 /* deprecated */ +#define XK_hebrew_tet 0xce8 +#define XK_hebrew_teth 0xce8 /* deprecated */ +#define XK_hebrew_yod 0xce9 +#define XK_hebrew_finalkaph 0xcea +#define XK_hebrew_kaph 0xceb +#define XK_hebrew_lamed 0xcec +#define XK_hebrew_finalmem 0xced +#define XK_hebrew_mem 0xcee +#define XK_hebrew_finalnun 0xcef +#define XK_hebrew_nun 0xcf0 +#define XK_hebrew_samech 0xcf1 +#define XK_hebrew_samekh 0xcf1 /* deprecated */ +#define XK_hebrew_ayin 0xcf2 +#define XK_hebrew_finalpe 0xcf3 +#define XK_hebrew_pe 0xcf4 +#define XK_hebrew_finalzade 0xcf5 +#define XK_hebrew_finalzadi 0xcf5 /* deprecated */ +#define XK_hebrew_zade 0xcf6 +#define XK_hebrew_zadi 0xcf6 /* deprecated */ +#define XK_hebrew_qoph 0xcf7 +#define XK_hebrew_kuf 0xcf7 /* deprecated */ +#define XK_hebrew_resh 0xcf8 +#define XK_hebrew_shin 0xcf9 +#define XK_hebrew_taw 0xcfa +#define XK_hebrew_taf 0xcfa /* deprecated */ +#define XK_Hebrew_switch 0xFF7E /* Alias for mode_switch */ +#endif /* XK_HEBREW */ + +/* + * Thai + * Byte 3 = d + */ + +#ifdef XK_THAI +#define XK_Thai_kokai 0xda1 +#define XK_Thai_khokhai 0xda2 +#define XK_Thai_khokhuat 0xda3 +#define XK_Thai_khokhwai 0xda4 +#define XK_Thai_khokhon 0xda5 +#define XK_Thai_khorakhang 0xda6 +#define XK_Thai_ngongu 0xda7 +#define XK_Thai_chochan 0xda8 +#define XK_Thai_choching 0xda9 +#define XK_Thai_chochang 0xdaa +#define XK_Thai_soso 0xdab +#define XK_Thai_chochoe 0xdac +#define XK_Thai_yoying 0xdad +#define XK_Thai_dochada 0xdae +#define XK_Thai_topatak 0xdaf +#define XK_Thai_thothan 0xdb0 +#define XK_Thai_thonangmontho 0xdb1 +#define XK_Thai_thophuthao 0xdb2 +#define XK_Thai_nonen 0xdb3 +#define XK_Thai_dodek 0xdb4 +#define XK_Thai_totao 0xdb5 +#define XK_Thai_thothung 0xdb6 +#define XK_Thai_thothahan 0xdb7 +#define XK_Thai_thothong 0xdb8 +#define XK_Thai_nonu 0xdb9 +#define XK_Thai_bobaimai 0xdba +#define XK_Thai_popla 0xdbb +#define XK_Thai_phophung 0xdbc +#define XK_Thai_fofa 0xdbd +#define XK_Thai_phophan 0xdbe +#define XK_Thai_fofan 0xdbf +#define XK_Thai_phosamphao 0xdc0 +#define XK_Thai_moma 0xdc1 +#define XK_Thai_yoyak 0xdc2 +#define XK_Thai_rorua 0xdc3 +#define XK_Thai_ru 0xdc4 +#define XK_Thai_loling 0xdc5 +#define XK_Thai_lu 0xdc6 +#define XK_Thai_wowaen 0xdc7 +#define XK_Thai_sosala 0xdc8 +#define XK_Thai_sorusi 0xdc9 +#define XK_Thai_sosua 0xdca +#define XK_Thai_hohip 0xdcb +#define XK_Thai_lochula 0xdcc +#define XK_Thai_oang 0xdcd +#define XK_Thai_honokhuk 0xdce +#define XK_Thai_paiyannoi 0xdcf +#define XK_Thai_saraa 0xdd0 +#define XK_Thai_maihanakat 0xdd1 +#define XK_Thai_saraaa 0xdd2 +#define XK_Thai_saraam 0xdd3 +#define XK_Thai_sarai 0xdd4 +#define XK_Thai_saraii 0xdd5 +#define XK_Thai_saraue 0xdd6 +#define XK_Thai_sarauee 0xdd7 +#define XK_Thai_sarau 0xdd8 +#define XK_Thai_sarauu 0xdd9 +#define XK_Thai_phinthu 0xdda +#define XK_Thai_maihanakat_maitho 0xdde +#define XK_Thai_baht 0xddf +#define XK_Thai_sarae 0xde0 +#define XK_Thai_saraae 0xde1 +#define XK_Thai_sarao 0xde2 +#define XK_Thai_saraaimaimuan 0xde3 +#define XK_Thai_saraaimaimalai 0xde4 +#define XK_Thai_lakkhangyao 0xde5 +#define XK_Thai_maiyamok 0xde6 +#define XK_Thai_maitaikhu 0xde7 +#define XK_Thai_maiek 0xde8 +#define XK_Thai_maitho 0xde9 +#define XK_Thai_maitri 0xdea +#define XK_Thai_maichattawa 0xdeb +#define XK_Thai_thanthakhat 0xdec +#define XK_Thai_nikhahit 0xded +#define XK_Thai_leksun 0xdf0 +#define XK_Thai_leknung 0xdf1 +#define XK_Thai_leksong 0xdf2 +#define XK_Thai_leksam 0xdf3 +#define XK_Thai_leksi 0xdf4 +#define XK_Thai_lekha 0xdf5 +#define XK_Thai_lekhok 0xdf6 +#define XK_Thai_lekchet 0xdf7 +#define XK_Thai_lekpaet 0xdf8 +#define XK_Thai_lekkao 0xdf9 +#endif /* XK_THAI */ + +/* + * Korean + * Byte 3 = e + */ + +#ifdef XK_KOREAN + +#define XK_Hangul 0xff31 /* Hangul start/stop(toggle) */ +#define XK_Hangul_Start 0xff32 /* Hangul start */ +#define XK_Hangul_End 0xff33 /* Hangul end, English start */ +#define XK_Hangul_Hanja 0xff34 /* Start Hangul->Hanja Conversion */ +#define XK_Hangul_Jamo 0xff35 /* Hangul Jamo mode */ +#define XK_Hangul_Romaja 0xff36 /* Hangul Romaja mode */ +#define XK_Hangul_Codeinput 0xff37 /* Hangul code input mode */ +#define XK_Hangul_Jeonja 0xff38 /* Jeonja mode */ +#define XK_Hangul_Banja 0xff39 /* Banja mode */ +#define XK_Hangul_PreHanja 0xff3a /* Pre Hanja conversion */ +#define XK_Hangul_PostHanja 0xff3b /* Post Hanja conversion */ +#define XK_Hangul_SingleCandidate 0xff3c /* Single candidate */ +#define XK_Hangul_MultipleCandidate 0xff3d /* Multiple candidate */ +#define XK_Hangul_PreviousCandidate 0xff3e /* Previous candidate */ +#define XK_Hangul_Special 0xff3f /* Special symbols */ +#define XK_Hangul_switch 0xFF7E /* Alias for mode_switch */ + +/* Hangul Consonant Characters */ +#define XK_Hangul_Kiyeog 0xea1 +#define XK_Hangul_SsangKiyeog 0xea2 +#define XK_Hangul_KiyeogSios 0xea3 +#define XK_Hangul_Nieun 0xea4 +#define XK_Hangul_NieunJieuj 0xea5 +#define XK_Hangul_NieunHieuh 0xea6 +#define XK_Hangul_Dikeud 0xea7 +#define XK_Hangul_SsangDikeud 0xea8 +#define XK_Hangul_Rieul 0xea9 +#define XK_Hangul_RieulKiyeog 0xeaa +#define XK_Hangul_RieulMieum 0xeab +#define XK_Hangul_RieulPieub 0xeac +#define XK_Hangul_RieulSios 0xead +#define XK_Hangul_RieulTieut 0xeae +#define XK_Hangul_RieulPhieuf 0xeaf +#define XK_Hangul_RieulHieuh 0xeb0 +#define XK_Hangul_Mieum 0xeb1 +#define XK_Hangul_Pieub 0xeb2 +#define XK_Hangul_SsangPieub 0xeb3 +#define XK_Hangul_PieubSios 0xeb4 +#define XK_Hangul_Sios 0xeb5 +#define XK_Hangul_SsangSios 0xeb6 +#define XK_Hangul_Ieung 0xeb7 +#define XK_Hangul_Jieuj 0xeb8 +#define XK_Hangul_SsangJieuj 0xeb9 +#define XK_Hangul_Cieuc 0xeba +#define XK_Hangul_Khieuq 0xebb +#define XK_Hangul_Tieut 0xebc +#define XK_Hangul_Phieuf 0xebd +#define XK_Hangul_Hieuh 0xebe + +/* Hangul Vowel Characters */ +#define XK_Hangul_A 0xebf +#define XK_Hangul_AE 0xec0 +#define XK_Hangul_YA 0xec1 +#define XK_Hangul_YAE 0xec2 +#define XK_Hangul_EO 0xec3 +#define XK_Hangul_E 0xec4 +#define XK_Hangul_YEO 0xec5 +#define XK_Hangul_YE 0xec6 +#define XK_Hangul_O 0xec7 +#define XK_Hangul_WA 0xec8 +#define XK_Hangul_WAE 0xec9 +#define XK_Hangul_OE 0xeca +#define XK_Hangul_YO 0xecb +#define XK_Hangul_U 0xecc +#define XK_Hangul_WEO 0xecd +#define XK_Hangul_WE 0xece +#define XK_Hangul_WI 0xecf +#define XK_Hangul_YU 0xed0 +#define XK_Hangul_EU 0xed1 +#define XK_Hangul_YI 0xed2 +#define XK_Hangul_I 0xed3 + +/* Hangul syllable-final (JongSeong) Characters */ +#define XK_Hangul_J_Kiyeog 0xed4 +#define XK_Hangul_J_SsangKiyeog 0xed5 +#define XK_Hangul_J_KiyeogSios 0xed6 +#define XK_Hangul_J_Nieun 0xed7 +#define XK_Hangul_J_NieunJieuj 0xed8 +#define XK_Hangul_J_NieunHieuh 0xed9 +#define XK_Hangul_J_Dikeud 0xeda +#define XK_Hangul_J_Rieul 0xedb +#define XK_Hangul_J_RieulKiyeog 0xedc +#define XK_Hangul_J_RieulMieum 0xedd +#define XK_Hangul_J_RieulPieub 0xede +#define XK_Hangul_J_RieulSios 0xedf +#define XK_Hangul_J_RieulTieut 0xee0 +#define XK_Hangul_J_RieulPhieuf 0xee1 +#define XK_Hangul_J_RieulHieuh 0xee2 +#define XK_Hangul_J_Mieum 0xee3 +#define XK_Hangul_J_Pieub 0xee4 +#define XK_Hangul_J_PieubSios 0xee5 +#define XK_Hangul_J_Sios 0xee6 +#define XK_Hangul_J_SsangSios 0xee7 +#define XK_Hangul_J_Ieung 0xee8 +#define XK_Hangul_J_Jieuj 0xee9 +#define XK_Hangul_J_Cieuc 0xeea +#define XK_Hangul_J_Khieuq 0xeeb +#define XK_Hangul_J_Tieut 0xeec +#define XK_Hangul_J_Phieuf 0xeed +#define XK_Hangul_J_Hieuh 0xeee + +/* Ancient Hangul Consonant Characters */ +#define XK_Hangul_RieulYeorinHieuh 0xeef +#define XK_Hangul_SunkyeongeumMieum 0xef0 +#define XK_Hangul_SunkyeongeumPieub 0xef1 +#define XK_Hangul_PanSios 0xef2 +#define XK_Hangul_KkogjiDalrinIeung 0xef3 +#define XK_Hangul_SunkyeongeumPhieuf 0xef4 +#define XK_Hangul_YeorinHieuh 0xef5 + +/* Ancient Hangul Vowel Characters */ +#define XK_Hangul_AraeA 0xef6 +#define XK_Hangul_AraeAE 0xef7 + +/* Ancient Hangul syllable-final (JongSeong) Characters */ +#define XK_Hangul_J_PanSios 0xef8 +#define XK_Hangul_J_KkogjiDalrinIeung 0xef9 +#define XK_Hangul_J_YeorinHieuh 0xefa + +/* Korean currency symbol */ +#define XK_Korean_Won 0xeff + +#endif /* XK_KOREAN */ + +/* Euro currency symbol */ +#define XK_EuroSign 0x20ac + +#endif diff --git a/krfb/libvncserver/mac.c b/krfb/libvncserver/mac.c new file mode 100644 index 00000000..a3c4f3c6 --- /dev/null +++ b/krfb/libvncserver/mac.c @@ -0,0 +1,604 @@ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * Cut in two parts by Johannes Schindelin (2001): libvncserver and OSXvnc. + * + * + * This file implements every system specific function for Mac OS X. + * + * It includes the keyboard functions: + * + void KbdAddEvent(down, keySym, cl) + Bool down; + KeySym keySym; + rfbClientPtr cl; + void KbdReleaseAllKeys() + * + * the mouse functions: + * + void PtrAddEvent(buttonMask, x, y, cl) + int buttonMask; + int x; + int y; + rfbClientPtr cl; + * + */ + +#define LOCAL_CONTROL + +#ifdef LOCAL_CONTROL +#include "1instance.c" +#endif + +#include <unistd.h> +#include <ApplicationServices/ApplicationServices.h> +#include <Carbon/Carbon.h> +/* zlib doesn't like Byte already defined */ +#undef Byte +#undef TRUE +#undef Bool +#include "rfb.h" +#include "keysym.h" + +#include <IOKit/pwr_mgt/IOPMLib.h> +#include <IOKit/pwr_mgt/IOPM.h> +#include <stdio.h> +#include <signal.h> +#include <pthread.h> + +Bool rfbNoDimming = FALSE; +Bool rfbNoSleep = TRUE; + +static pthread_mutex_t dimming_mutex; +static unsigned long dim_time; +static unsigned long sleep_time; +static mach_port_t master_dev_port; +static io_connect_t power_mgt; +static Bool initialized = FALSE; +static Bool dim_time_saved = FALSE; +static Bool sleep_time_saved = FALSE; + +static int +saveDimSettings(void) +{ + if (IOPMGetAggressiveness(power_mgt, + kPMMinutesToDim, + &dim_time) != kIOReturnSuccess) + return -1; + + dim_time_saved = TRUE; + return 0; +} + +static int +restoreDimSettings(void) +{ + if (!dim_time_saved) + return -1; + + if (IOPMSetAggressiveness(power_mgt, + kPMMinutesToDim, + dim_time) != kIOReturnSuccess) + return -1; + + dim_time_saved = FALSE; + dim_time = 0; + return 0; +} + +static int +saveSleepSettings(void) +{ + if (IOPMGetAggressiveness(power_mgt, + kPMMinutesToSleep, + &sleep_time) != kIOReturnSuccess) + return -1; + + sleep_time_saved = TRUE; + return 0; +} + +static int +restoreSleepSettings(void) +{ + if (!sleep_time_saved) + return -1; + + if (IOPMSetAggressiveness(power_mgt, + kPMMinutesToSleep, + sleep_time) != kIOReturnSuccess) + return -1; + + sleep_time_saved = FALSE; + sleep_time = 0; + return 0; +} + + +int +rfbDimmingInit(void) +{ + pthread_mutex_init(&dimming_mutex, NULL); + + if (IOMasterPort(bootstrap_port, &master_dev_port) != kIOReturnSuccess) + return -1; + + if (!(power_mgt = IOPMFindPowerManagement(master_dev_port))) + return -1; + + if (rfbNoDimming) { + if (saveDimSettings() < 0) + return -1; + if (IOPMSetAggressiveness(power_mgt, + kPMMinutesToDim, 0) != kIOReturnSuccess) + return -1; + } + + if (rfbNoSleep) { + if (saveSleepSettings() < 0) + return -1; + if (IOPMSetAggressiveness(power_mgt, + kPMMinutesToSleep, 0) != kIOReturnSuccess) + return -1; + } + + initialized = TRUE; + return 0; +} + + +int +rfbUndim(void) +{ + int result = -1; + + pthread_mutex_lock(&dimming_mutex); + + if (!initialized) + goto DONE; + + if (!rfbNoDimming) { + if (saveDimSettings() < 0) + goto DONE; + if (IOPMSetAggressiveness(power_mgt, kPMMinutesToDim, 0) != kIOReturnSuccess) + goto DONE; + if (restoreDimSettings() < 0) + goto DONE; + } + + if (!rfbNoSleep) { + if (saveSleepSettings() < 0) + goto DONE; + if (IOPMSetAggressiveness(power_mgt, kPMMinutesToSleep, 0) != kIOReturnSuccess) + goto DONE; + if (restoreSleepSettings() < 0) + goto DONE; + } + + result = 0; + + DONE: + pthread_mutex_unlock(&dimming_mutex); + return result; +} + + +int +rfbDimmingShutdown(void) +{ + int result = -1; + + if (!initialized) + goto DONE; + + pthread_mutex_lock(&dimming_mutex); + if (dim_time_saved) + if (restoreDimSettings() < 0) + goto DONE; + if (sleep_time_saved) + if (restoreSleepSettings() < 0) + goto DONE; + + result = 0; + + DONE: + pthread_mutex_unlock(&dimming_mutex); + return result; +} + +rfbScreenInfoPtr rfbScreen; + +void rfbShutdown(rfbClientPtr cl); + +/* some variables to enable special behaviour */ +int startTime = -1, maxSecsToConnect = 0; +Bool disconnectAfterFirstClient = TRUE; + +/* Where do I get the "official" list of Mac key codes? + Ripped these out of a Mac II emulator called Basilisk II + that I found on the net. */ +static int keyTable[] = { + /* The alphabet */ + XK_A, 0, /* A */ + XK_B, 11, /* B */ + XK_C, 8, /* C */ + XK_D, 2, /* D */ + XK_E, 14, /* E */ + XK_F, 3, /* F */ + XK_G, 5, /* G */ + XK_H, 4, /* H */ + XK_I, 34, /* I */ + XK_J, 38, /* J */ + XK_K, 40, /* K */ + XK_L, 37, /* L */ + XK_M, 46, /* M */ + XK_N, 45, /* N */ + XK_O, 31, /* O */ + XK_P, 35, /* P */ + XK_Q, 12, /* Q */ + XK_R, 15, /* R */ + XK_S, 1, /* S */ + XK_T, 17, /* T */ + XK_U, 32, /* U */ + XK_V, 9, /* V */ + XK_W, 13, /* W */ + XK_X, 7, /* X */ + XK_Y, 16, /* Y */ + XK_Z, 6, /* Z */ + XK_a, 0, /* a */ + XK_b, 11, /* b */ + XK_c, 8, /* c */ + XK_d, 2, /* d */ + XK_e, 14, /* e */ + XK_f, 3, /* f */ + XK_g, 5, /* g */ + XK_h, 4, /* h */ + XK_i, 34, /* i */ + XK_j, 38, /* j */ + XK_k, 40, /* k */ + XK_l, 37, /* l */ + XK_m, 46, /* m */ + XK_n, 45, /* n */ + XK_o, 31, /* o */ + XK_p, 35, /* p */ + XK_q, 12, /* q */ + XK_r, 15, /* r */ + XK_s, 1, /* s */ + XK_t, 17, /* t */ + XK_u, 32, /* u */ + XK_v, 9, /* v */ + XK_w, 13, /* w */ + XK_x, 7, /* x */ + XK_y, 16, /* y */ + XK_z, 6, /* z */ + + /* Numbers */ + XK_0, 29, /* 0 */ + XK_1, 18, /* 1 */ + XK_2, 19, /* 2 */ + XK_3, 20, /* 3 */ + XK_4, 21, /* 4 */ + XK_5, 23, /* 5 */ + XK_6, 22, /* 6 */ + XK_7, 26, /* 7 */ + XK_8, 28, /* 8 */ + XK_9, 25, /* 9 */ + + /* Symbols */ + XK_exclam, 18, /* ! */ + XK_at, 19, /* @ */ + XK_numbersign, 20, /* # */ + XK_dollar, 21, /* $ */ + XK_percent, 23, /* % */ + XK_asciicircum, 22, /* ^ */ + XK_ampersand, 26, /* & */ + XK_asterisk, 28, /* * */ + XK_parenleft, 25, /* ( */ + XK_parenright, 29, /* ) */ + XK_minus, 27, /* - */ + XK_underscore, 27, /* _ */ + XK_equal, 24, /* = */ + XK_plus, 24, /* + */ + XK_grave, 10, /* ` */ /* XXX ? */ + XK_asciitilde, 10, /* ~ */ + XK_bracketleft, 33, /* [ */ + XK_braceleft, 33, /* { */ + XK_bracketright, 30, /* ] */ + XK_braceright, 30, /* } */ + XK_semicolon, 41, /* ; */ + XK_colon, 41, /* : */ + XK_apostrophe, 39, /* ' */ + XK_quotedbl, 39, /* " */ + XK_comma, 43, /* , */ + XK_less, 43, /* < */ + XK_period, 47, /* . */ + XK_greater, 47, /* > */ + XK_slash, 44, /* / */ + XK_question, 44, /* ? */ + XK_backslash, 42, /* \ */ + XK_bar, 42, /* | */ + + /* "Special" keys */ + XK_space, 49, /* Space */ + XK_Return, 36, /* Return */ + XK_Delete, 117, /* Delete */ + XK_Tab, 48, /* Tab */ + XK_Escape, 53, /* Esc */ + XK_Caps_Lock, 57, /* Caps Lock */ + XK_Num_Lock, 71, /* Num Lock */ + XK_Scroll_Lock, 107, /* Scroll Lock */ + XK_Pause, 113, /* Pause */ + XK_BackSpace, 51, /* Backspace */ + XK_Insert, 114, /* Insert */ + + /* Cursor movement */ + XK_Up, 126, /* Cursor Up */ + XK_Down, 125, /* Cursor Down */ + XK_Left, 123, /* Cursor Left */ + XK_Right, 124, /* Cursor Right */ + XK_Page_Up, 116, /* Page Up */ + XK_Page_Down, 121, /* Page Down */ + XK_Home, 115, /* Home */ + XK_End, 119, /* End */ + + /* Numeric keypad */ + XK_KP_0, 82, /* KP 0 */ + XK_KP_1, 83, /* KP 1 */ + XK_KP_2, 84, /* KP 2 */ + XK_KP_3, 85, /* KP 3 */ + XK_KP_4, 86, /* KP 4 */ + XK_KP_5, 87, /* KP 5 */ + XK_KP_6, 88, /* KP 6 */ + XK_KP_7, 89, /* KP 7 */ + XK_KP_8, 91, /* KP 8 */ + XK_KP_9, 92, /* KP 9 */ + XK_KP_Enter, 76, /* KP Enter */ + XK_KP_Decimal, 65, /* KP . */ + XK_KP_Add, 69, /* KP + */ + XK_KP_Subtract, 78, /* KP - */ + XK_KP_Multiply, 67, /* KP * */ + XK_KP_Divide, 75, /* KP / */ + + /* Function keys */ + XK_F1, 122, /* F1 */ + XK_F2, 120, /* F2 */ + XK_F3, 99, /* F3 */ + XK_F4, 118, /* F4 */ + XK_F5, 96, /* F5 */ + XK_F6, 97, /* F6 */ + XK_F7, 98, /* F7 */ + XK_F8, 100, /* F8 */ + XK_F9, 101, /* F9 */ + XK_F10, 109, /* F10 */ + XK_F11, 103, /* F11 */ + XK_F12, 111, /* F12 */ + + /* Modifier keys */ + XK_Shift_L, 56, /* Shift Left */ + XK_Shift_R, 56, /* Shift Right */ + XK_Control_L, 59, /* Ctrl Left */ + XK_Control_R, 59, /* Ctrl Right */ + XK_Meta_L, 58, /* Logo Left (-> Option) */ + XK_Meta_R, 58, /* Logo Right (-> Option) */ + XK_Alt_L, 55, /* Alt Left (-> Command) */ + XK_Alt_R, 55, /* Alt Right (-> Command) */ + + /* Weirdness I can't figure out */ + /* XK_3270_PrintScreen, 105, /* PrintScrn */ /* XXX ? */ + /* ??? 94, 50, /* International */ + XK_Menu, 50, /* Menu (-> International) */ +}; + +void +KbdAddEvent(Bool down, KeySym keySym, struct _rfbClientRec* cl) +{ + int i; + CGKeyCode keyCode = -1; + int found = 0; + + if(((int)cl->clientData)==-1) return; /* viewOnly */ + + rfbUndim(); + + for (i = 0; i < (sizeof(keyTable) / sizeof(int)); i += 2) { + if (keyTable[i] == keySym) { + keyCode = keyTable[i+1]; + found = 1; + break; + } + } + + if (!found) { + rfbLog("warning: couldn't figure out keycode for X keysym %d (0x%x)\n", + (int)keySym, (int)keySym); + } else { + /* Hopefully I can get away with not specifying a CGCharCode. + (Why would you need both?) */ + CGPostKeyboardEvent((CGCharCode)0, keyCode, down); + } +} + +void +PtrAddEvent(buttonMask, x, y, cl) + int buttonMask; + int x; + int y; + rfbClientPtr cl; +{ + CGPoint position; + + if(((int)cl->clientData)==-1) return; /* viewOnly */ + + rfbUndim(); + + position.x = x; + position.y = y; + + CGPostMouseEvent(position, TRUE, 8, + (buttonMask & (1 << 0)) ? TRUE : FALSE, + (buttonMask & (1 << 1)) ? TRUE : FALSE, + (buttonMask & (1 << 2)) ? TRUE : FALSE, + (buttonMask & (1 << 3)) ? TRUE : FALSE, + (buttonMask & (1 << 4)) ? TRUE : FALSE, + (buttonMask & (1 << 5)) ? TRUE : FALSE, + (buttonMask & (1 << 6)) ? TRUE : FALSE, + (buttonMask & (1 << 7)) ? TRUE : FALSE); +} + +Bool viewOnly = FALSE, sharedMode = FALSE; + +void +ScreenInit(int argc, char**argv) +{ + int bitsPerSample=CGDisplayBitsPerSample(kCGDirectMainDisplay); + rfbScreen = rfbGetScreen(&argc,argv, + CGDisplayPixelsWide(kCGDirectMainDisplay), + CGDisplayPixelsHigh(kCGDirectMainDisplay), + bitsPerSample, + CGDisplaySamplesPerPixel(kCGDirectMainDisplay),4); + rfbScreen->rfbServerFormat.redShift = bitsPerSample*2; + rfbScreen->rfbServerFormat.greenShift = bitsPerSample*1; + rfbScreen->rfbServerFormat.blueShift = 0; + + gethostname(rfbScreen->rfbThisHost, 255); + rfbScreen->paddedWidthInBytes = CGDisplayBytesPerRow(kCGDirectMainDisplay); + rfbScreen->frameBuffer = + (char *)CGDisplayBaseAddress(kCGDirectMainDisplay); + + rfbScreen->ptrAddEvent = PtrAddEvent; + rfbScreen->kbdAddEvent = KbdAddEvent; + + if(sharedMode) { + rfbScreen->rfbAlwaysShared = TRUE; + } + + rfbInitServer(rfbScreen); +} + +#ifdef LOCAL_CONTROL +single_instance_struct single_instance = { "/tmp/OSXvnc_control" }; +#endif + +static void +refreshCallback(CGRectCount count, const CGRect *rectArray, void *ignore) +{ + int i; + +#ifdef LOCAL_CONTROL + char message[1024]; + + if(get_next_message(message,1024,&single_instance,50)) { + if(message[0]=='l' && message[1]==0) { + rfbClientPtr cl; + int i; + for(i=0,cl=rfbScreen->rfbClientHead;cl;cl=cl->next,i++) + fprintf(stderr,"%02d: %s\n",i,cl->host); + } else if(message[0]=='t') { + rfbClientPtr cl; + for(cl=rfbScreen->rfbClientHead;cl;cl=cl->next) + if(!strcmp(message+1,cl->host)) { + cl->clientData=(void*)((cl->clientData==0)?-1:0); + break; + } + } +#ifdef BACKCHANNEL + else if(message[0]=='b') + rfbSendBackChannel(rfbScreen,message+1,strlen(message+1)); +#endif + } +#endif + + if(startTime>0 && time(0)>startTime+maxSecsToConnect) + rfbShutdown(0); + + for (i = 0; i < count; i++) + rfbMarkRectAsModified(rfbScreen, + rectArray[i].origin.x,rectArray[i].origin.y, + rectArray[i].origin.x + rectArray[i].size.width, + rectArray[i].origin.y + rectArray[i].size.height); +} + +void clientGone(rfbClientPtr cl) +{ + rfbShutdown(cl); +} + +enum rfbNewClientAction newClient(rfbClientPtr cl) +{ + if(startTime>0 && time(0)>startTime+maxSecsToConnect) + rfbShutdown(cl); + + if(disconnectAfterFirstClient) + cl->clientGoneHook = clientGone; + + cl->clientData=(void*)((viewOnly)?-1:0); + + return(RFB_CLIENT_ACCEPT); +} + +int main(int argc,char *argv[]) +{ + int i; + +#ifdef LOCAL_CONTROL + char message[1024]; + + open_control_file(&single_instance); +#endif + + for(i=argc-1;i>0;i--) +#ifdef LOCAL_CONTROL + if(i<argc-1 && !strcmp(argv[i],"-toggleviewonly")) { + snprintf(message, sizeof(message), "t%s",argv[i+1]); + send_message(&single_instance,message); + exit(0); + } else if(!strcmp(argv[i],"-listclients")) { + fprintf(stderr,"list clients\n"); + send_message(&single_instance,"l"); + exit(0); + } else +#ifdef BACKCHANNEL + if(i<argc-1 && !strcmp(argv[i],"-backchannel")) { + snprintf(message, sizeof(message), "b%s",argv[i+1]); + send_message(&single_instance,message); + exit(0); + } else +#endif +#endif + if(i<argc-1 && strcmp(argv[i],"-wait4client")==0) { + maxSecsToConnect = atoi(argv[i+1])/1000; + startTime = time(0); + } else if(strcmp(argv[i],"-runforever")==0) { + disconnectAfterFirstClient = FALSE; + } else if(strcmp(argv[i],"-viewonly")==0) { + viewOnly=TRUE; + } else if(strcmp(argv[i],"-shared")==0) { + sharedMode=TRUE; + } + + rfbDimmingInit(); + + ScreenInit(argc,argv); + rfbScreen->newClientHook = newClient; + + /* enter background event loop */ + rfbRunEventLoop(rfbScreen,40,TRUE); + + /* enter OS X loop */ + CGRegisterScreenRefreshCallback(refreshCallback, NULL); + RunApplicationEventLoop(); + + rfbDimmingShutdown(); + + return(0); /* never ... */ +} + +void rfbShutdown(rfbClientPtr cl) +{ + rfbScreenCleanup(rfbScreen); + rfbDimmingShutdown(); + exit(0); +} diff --git a/krfb/libvncserver/main.c b/krfb/libvncserver/main.c new file mode 100644 index 00000000..207e512d --- /dev/null +++ b/krfb/libvncserver/main.c @@ -0,0 +1,729 @@ +/* + * This file is called main.c, because it contains most of the new functions + * for use with LibVNCServer. + * + * LibVNCServer (C) 2001 Johannes E. Schindelin <[email protected]> + * Original OSXvnc (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * see GPL (latest version) for full details + */ + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <errno.h> + +#ifndef false +#define false 0 +#define true -1 +#endif + +#include <sys/types.h> +#ifdef __osf__ +typedef int socklen_t; +#endif +#ifndef WIN32 +#include <sys/socket.h> +#include <netinet/in.h> +#include <unistd.h> +#endif +#include <signal.h> +#include <time.h> + +#include "rfb.h" +#include "sraRegion.h" + +/* minimum interval between attempts to send something */ +#define PING_MS 10000 + +MUTEX(logMutex); + +int rfbEnableLogging=1; + +/* we cannot compare to _LITTLE_ENDIAN, because some systems + (as Solaris) assume little endian if _LITTLE_ENDIAN is + defined, even if _BYTE_ORDER is not _LITTLE_ENDIAN */ +char rfbEndianTest = (_BYTE_ORDER == 1234); + +/* from rfbserver.c */ +void rfbIncrClientRef(rfbClientPtr cl); +void rfbDecrClientRef(rfbClientPtr cl); + +void rfbLogEnable(int enabled) { + rfbEnableLogging=enabled; +} + +/* + * rfbLog prints a time-stamped message to the log file (stderr). + */ + +void +rfbLog(const char *format, ...) +{ + va_list args; + char buf[256]; + time_t log_clock; + + if(!rfbEnableLogging) + return; + + LOCK(logMutex); + va_start(args, format); + + time(&log_clock); + strftime(buf, 255, "%d/%m/%Y %T ", localtime(&log_clock)); + fprintf(stderr, "%s", buf); + + vfprintf(stderr, format, args); + fflush(stderr); + + va_end(args); + UNLOCK(logMutex); +} + +void rfbLogPerror(const char *str) +{ + rfbLog("%s: %s\n", str, strerror(errno)); +} + +void rfbScheduleCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy) +{ + rfbClientIteratorPtr iterator; + rfbClientPtr cl; + + rfbUndrawCursor(rfbScreen); + + iterator=rfbGetClientIterator(rfbScreen); + while((cl=rfbClientIteratorNext(iterator))) { + LOCK(cl->updateMutex); + if(cl->useCopyRect) { + sraRegionPtr modifiedRegionBackup; + if(!sraRgnEmpty(cl->copyRegion)) { + if(cl->copyDX!=dx || cl->copyDY!=dy) { + /* if a copyRegion was not yet executed, treat it as a + * modifiedRegion. The idea: in this case it could be + * source of the new copyRect or modified anyway. */ + sraRgnOr(cl->modifiedRegion,cl->copyRegion); + sraRgnMakeEmpty(cl->copyRegion); + } else { + /* we have to set the intersection of the source of the copy + * and the old copy to modified. */ + modifiedRegionBackup=sraRgnCreateRgn(copyRegion); + sraRgnOffset(modifiedRegionBackup,-dx,-dy); + sraRgnAnd(modifiedRegionBackup,cl->copyRegion); + sraRgnOr(cl->modifiedRegion,modifiedRegionBackup); + sraRgnDestroy(modifiedRegionBackup); + } + } + + sraRgnOr(cl->copyRegion,copyRegion); + cl->copyDX = dx; + cl->copyDY = dy; + + /* if there were modified regions, which are now copied, + * mark them as modified, because the source of these can be overlapped + * either by new modified or now copied regions. */ + modifiedRegionBackup=sraRgnCreateRgn(cl->modifiedRegion); + sraRgnOffset(modifiedRegionBackup,dx,dy); + sraRgnAnd(modifiedRegionBackup,cl->copyRegion); + sraRgnOr(cl->modifiedRegion,modifiedRegionBackup); + sraRgnDestroy(modifiedRegionBackup); + +#if 0 +//TODO: is this needed? Or does it mess up deferring? + /* while(!sraRgnEmpty(cl->copyRegion)) */ { +#ifdef HAVE_PTHREADS + if(!cl->screen->backgroundLoop) +#endif + { + sraRegionPtr updateRegion = sraRgnCreateRgn(cl->modifiedRegion); + sraRgnOr(updateRegion,cl->copyRegion); + UNLOCK(cl->updateMutex); + rfbSendFramebufferUpdate(cl,updateRegion); + sraRgnDestroy(updateRegion); + continue; + } + } +#endif + } else { + sraRgnOr(cl->modifiedRegion,copyRegion); + } + TSIGNAL(cl->updateCond); + UNLOCK(cl->updateMutex); + } + + rfbReleaseClientIterator(iterator); +} + +void rfbDoCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy) +{ + sraRectangleIterator* i; + sraRect rect; + int j,widthInBytes,bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8, + rowstride=rfbScreen->paddedWidthInBytes; + char *in,*out; + + rfbUndrawCursor(rfbScreen); + + /* copy it, really */ + i = sraRgnGetReverseIterator(copyRegion,dx<0,dy<0); + while(sraRgnIteratorNext(i,&rect)) { + widthInBytes = (rect.x2-rect.x1)*bpp; + out = rfbScreen->frameBuffer+rect.x1*bpp+rect.y1*rowstride; + in = rfbScreen->frameBuffer+(rect.x1-dx)*bpp+(rect.y1-dy)*rowstride; + if(dy<0) + for(j=rect.y1;j<rect.y2;j++,out+=rowstride,in+=rowstride) + memmove(out,in,widthInBytes); + else { + out += rowstride*(rect.y2-rect.y1-1); + in += rowstride*(rect.y2-rect.y1-1); + for(j=rect.y2-1;j>=rect.y1;j--,out-=rowstride,in-=rowstride) + memmove(out,in,widthInBytes); + } + } + + rfbScheduleCopyRegion(rfbScreen,copyRegion,dx,dy); +} + +void rfbDoCopyRect(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2,int dx,int dy) +{ + sraRegionPtr region = sraRgnCreateRect(x1,y1,x2,y2); + rfbDoCopyRegion(rfbScreen,region,dx,dy); +} + +void rfbScheduleCopyRect(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2,int dx,int dy) +{ + sraRegionPtr region = sraRgnCreateRect(x1,y1,x2,y2); + rfbScheduleCopyRegion(rfbScreen,region,dx,dy); +} + +void rfbMarkRegionAsModified(rfbScreenInfoPtr rfbScreen,sraRegionPtr modRegion) +{ + rfbClientIteratorPtr iterator; + rfbClientPtr cl; + + iterator=rfbGetClientIterator(rfbScreen); + while((cl=rfbClientIteratorNext(iterator))) { + LOCK(cl->updateMutex); + sraRgnOr(cl->modifiedRegion,modRegion); + TSIGNAL(cl->updateCond); + UNLOCK(cl->updateMutex); + } + + rfbReleaseClientIterator(iterator); +} + +void rfbMarkRectAsModified(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2) +{ + sraRegionPtr region; + int i; + + if(x1>x2) { i=x1; x1=x2; x2=i; } + if(x1<0) x1=0; + if(x2>=rfbScreen->width) x2=rfbScreen->width-1; + if(x1==x2) return; + + if(y1>y2) { i=y1; y1=y2; y2=i; } + if(y1<0) y1=0; + if(y2>=rfbScreen->height) y2=rfbScreen->height-1; + if(y1==y2) return; + + region = sraRgnCreateRect(x1,y1,x2,y2); + rfbMarkRegionAsModified(rfbScreen,region); + sraRgnDestroy(region); +} + +#ifdef HAVE_PTHREADS +static void * +clientOutput(void *data) +{ + rfbClientPtr cl = (rfbClientPtr)data; + Bool haveUpdate; + sraRegion* updateRegion; + + while (1) { + haveUpdate = false; + while (!haveUpdate) { + if (cl->sock == -1) { + /* Client has disconnected. */ + return NULL; + } + LOCK(cl->updateMutex); + haveUpdate = FB_UPDATE_PENDING(cl); + if(!haveUpdate) { + updateRegion = sraRgnCreateRgn(cl->modifiedRegion); + haveUpdate = sraRgnAnd(updateRegion,cl->requestedRegion); + sraRgnDestroy(updateRegion); + } + UNLOCK(cl->updateMutex); + + if (!haveUpdate) { + LOCK(cl->updateMutex); + TIMEDWAIT(cl->updateCond, cl->updateMutex, PING_MS); + UNLOCK(cl->updateMutex); /* we really needn't lock now. */ + if (!haveUpdate) + rfbSendPing(cl); + } + } + + /* OK, now, to save bandwidth, wait a little while for more + updates to come along. */ + usleep(cl->screen->rfbDeferUpdateTime * 1000); + + /* Now, get the region we're going to update, and remove + it from cl->modifiedRegion _before_ we send the update. + That way, if anything that overlaps the region we're sending + is updated, we'll be sure to do another update later. */ + LOCK(cl->updateMutex); + updateRegion = sraRgnCreateRgn(cl->modifiedRegion); + UNLOCK(cl->updateMutex); + + /* Now actually send the update. */ + rfbIncrClientRef(cl); + rfbSendFramebufferUpdate(cl, updateRegion); + rfbDecrClientRef(cl); + + sraRgnDestroy(updateRegion); + } + + return NULL; +} + +static void * +clientInput(void *data) +{ + rfbClientPtr cl = (rfbClientPtr)data; + pthread_t output_thread; + pthread_create(&output_thread, NULL, clientOutput, (void *)cl); + + while (1) { + rfbProcessClientMessage(cl); + if (cl->sock == -1) { + /* Client has disconnected. */ + break; + } + } + + /* Get rid of the output thread. */ + LOCK(cl->updateMutex); + TSIGNAL(cl->updateCond); + UNLOCK(cl->updateMutex); + IF_PTHREADS(pthread_join(output_thread, NULL)); + + rfbClientConnectionGone(cl); + + return NULL; +} + +static void* +listenerRun(void *data) +{ + rfbScreenInfoPtr rfbScreen=(rfbScreenInfoPtr)data; + int client_fd; + struct sockaddr_in peer; + rfbClientPtr cl; + size_t len; + + if (rfbScreen->inetdSock != -1) { + cl = rfbNewClient(rfbScreen, rfbScreen->inetdSock); + if (cl && !cl->onHold) + rfbStartOnHoldClient(cl); + else if (rfbScreen->inetdDisconnectHook && !cl) + rfbScreen->inetdDisconnectHook(); + return 0; + } + + len = sizeof(peer); + + /* TODO: this thread wont die by restarting the server */ + while ((client_fd = accept(rfbScreen->rfbListenSock, + (struct sockaddr*)&peer, &len)) >= 0) { + cl = rfbNewClient(rfbScreen,client_fd); + len = sizeof(peer); + + if (cl && !cl->onHold ) + rfbStartOnHoldClient(cl); + } + return NULL; +} + +void +rfbStartOnHoldClient(rfbClientPtr cl) +{ + pthread_create(&cl->client_thread, NULL, clientInput, (void *)cl); +} + +#else + +void +rfbStartOnHoldClient(rfbClientPtr cl) +{ + cl->onHold = FALSE; +} + +#endif + +void +rfbRefuseOnHoldClient(rfbClientPtr cl) +{ + rfbCloseClient(cl); + rfbClientConnectionGone(cl); +} + +static void +defaultKbdAddEvent(Bool down, KeySym keySym, rfbClientPtr cl) +{ +} + +void +defaultPtrAddEvent(int buttonMask, int x, int y, rfbClientPtr cl) +{ + if(x!=cl->screen->cursorX || y!=cl->screen->cursorY) { + cl->cursorWasMoved = TRUE; + if(cl->screen->cursorIsDrawn) + rfbUndrawCursor(cl->screen); + LOCK(cl->screen->cursorMutex); + if(!cl->screen->cursorIsDrawn) { + cl->screen->cursorX = x; + cl->screen->cursorY = y; + } + UNLOCK(cl->screen->cursorMutex); + } +} + +void defaultSetXCutText(char* text, int len, rfbClientPtr cl) +{ +} + +/* TODO: add a nice VNC or RFB cursor */ + +#if defined(WIN32) || defined(sparc) || defined(_AIX) || defined(__osf__) +static rfbCursor myCursor = +{ + "\000\102\044\030\044\102\000", + "\347\347\176\074\176\347\347", + 8, 7, 3, 3, + 0, 0, 0, + 0xffff, 0xffff, 0xffff, + 0 +}; +#else +static rfbCursor myCursor = +{ + source: "\000\102\044\030\044\102\000", + mask: "\347\347\176\074\176\347\347", + width: 8, height: 7, xhot: 3, yhot: 3, + /* + width: 8, height: 7, xhot: 0, yhot: 0, + source: "\000\074\176\146\176\074\000", + mask: "\176\377\377\377\377\377\176", + */ + foreRed: 0, foreGreen: 0, foreBlue: 0, + backRed: 0xffff, backGreen: 0xffff, backBlue: 0xffff, + richSource: 0 +}; +#endif + +rfbCursorPtr defaultGetCursorPtr(rfbClientPtr cl) +{ + return(cl->screen->cursor); +} + +/* response is cl->authChallenge vncEncrypted with passwd */ +Bool defaultPasswordCheck(rfbClientPtr cl,const char* response,int len) +{ + int i; + char *passwd=vncDecryptPasswdFromFile(cl->screen->rfbAuthPasswdData); + + if(!passwd) { + rfbLog("Couldn't read password file: %s\n",cl->screen->rfbAuthPasswdData); + return(FALSE); + } + + vncEncryptBytes(cl->authChallenge, passwd); + + /* Lose the password from memory */ + for (i = strlen(passwd); i >= 0; i--) { + passwd[i] = '\0'; + } + + free(passwd); + + if (memcmp(cl->authChallenge, response, len) != 0) { + rfbLog("rfbAuthProcessClientMessage: authentication failed from %s\n", + cl->host); + return(FALSE); + } + + return(TRUE); +} + +/* for this method, rfbAuthPasswdData is really a pointer to an array + of char*'s, where the last pointer is 0. */ +Bool rfbCheckPasswordByList(rfbClientPtr cl,const char* response,int len) +{ + char **passwds; + + for(passwds=(char**)cl->screen->rfbAuthPasswdData;*passwds;passwds++) { + vncEncryptBytes(cl->authChallenge, *passwds); + + if (memcmp(cl->authChallenge, response, len) == 0) + return(TRUE); + } + + rfbLog("rfbAuthProcessClientMessage: authentication failed from %s\n", + cl->host); + return(FALSE); +} + +void doNothingWithClient(rfbClientPtr cl) +{ +} + +enum rfbNewClientAction defaultNewClientHook(rfbClientPtr cl) +{ + return RFB_CLIENT_ACCEPT; +} + +rfbScreenInfoPtr rfbGetScreen(int* argc,char** argv, + int width,int height,int bitsPerSample,int samplesPerPixel, + int bytesPerPixel) +{ + rfbScreenInfoPtr rfbScreen=malloc(sizeof(rfbScreenInfo)); + rfbPixelFormat* format=&rfbScreen->rfbServerFormat; + + INIT_MUTEX(logMutex); + + if(width&3) + fprintf(stderr,"WARNING: Width (%d) is not a multiple of 4. VncViewer has problems with that.\n",width); + + rfbScreen->autoPort=FALSE; + rfbScreen->rfbClientHead=0; + rfbScreen->rfbPort=5900; + rfbScreen->socketInitDone=FALSE; + + rfbScreen->inetdInitDone = FALSE; + rfbScreen->inetdSock=-1; + + rfbScreen->udpSock=-1; + rfbScreen->udpSockConnected=FALSE; + rfbScreen->udpPort=0; + rfbScreen->udpClient=0; + + rfbScreen->maxFd=0; + rfbScreen->rfbListenSock=-1; + + rfbScreen->httpInitDone=FALSE; + rfbScreen->httpPort=0; + rfbScreen->httpDir=NULL; + rfbScreen->httpListenSock=-1; + rfbScreen->httpSock=-1; + rfbScreen->httpFP=NULL; + + rfbScreen->desktopName = "LibVNCServer"; + rfbScreen->rfbAlwaysShared = FALSE; + rfbScreen->rfbNeverShared = FALSE; + rfbScreen->rfbDontDisconnect = FALSE; + rfbScreen->rfbAuthPasswdData = 0; + + rfbScreen->width = width; + rfbScreen->height = height; + rfbScreen->bitsPerPixel = rfbScreen->depth = 8*bytesPerPixel; + + rfbScreen->passwordCheck = defaultPasswordCheck; + + rfbProcessArguments(rfbScreen,argc,argv); + +#ifdef WIN32 + { + DWORD dummy=255; + GetComputerName(rfbScreen->rfbThisHost,&dummy); + } +#else + gethostname(rfbScreen->rfbThisHost, 255); +#endif + + rfbScreen->paddedWidthInBytes = width*bytesPerPixel; + + /* format */ + + format->bitsPerPixel = rfbScreen->bitsPerPixel; + format->depth = rfbScreen->depth; + format->bigEndian = rfbEndianTest?FALSE:TRUE; + format->trueColour = TRUE; + rfbScreen->colourMap.count = 0; + rfbScreen->colourMap.is16 = 0; + rfbScreen->colourMap.data.bytes = NULL; + + if(bytesPerPixel == 1) { + format->redMax = 7; + format->greenMax = 7; + format->blueMax = 3; + format->redShift = 0; + format->greenShift = 3; + format->blueShift = 6; + } else { + format->redMax = (1 << bitsPerSample) - 1; + format->greenMax = (1 << bitsPerSample) - 1; + format->blueMax = (1 << bitsPerSample) - 1; + if(rfbEndianTest) { + format->redShift = 0; + format->greenShift = bitsPerSample; + format->blueShift = bitsPerSample * 2; + } else { + if(bytesPerPixel==3) { + format->redShift = bitsPerSample*2; + format->greenShift = bitsPerSample*1; + format->blueShift = 0; + } else { + format->redShift = bitsPerSample*3; + format->greenShift = bitsPerSample*2; + format->blueShift = bitsPerSample; + } + } + } + + /* cursor */ + + rfbScreen->cursorIsDrawn = FALSE; + rfbScreen->dontSendFramebufferUpdate = FALSE; + rfbScreen->cursorX=rfbScreen->cursorY=rfbScreen->underCursorBufferLen=0; + rfbScreen->underCursorBuffer=NULL; + rfbScreen->dontConvertRichCursorToXCursor = FALSE; + rfbScreen->cursor = &myCursor; + INIT_MUTEX(rfbScreen->cursorMutex); + + IF_PTHREADS(rfbScreen->backgroundLoop = FALSE); + + rfbScreen->rfbDeferUpdateTime=5; + + /* proc's and hook's */ + + rfbScreen->kbdAddEvent = defaultKbdAddEvent; + rfbScreen->kbdReleaseAllKeys = doNothingWithClient; + rfbScreen->ptrAddEvent = defaultPtrAddEvent; + rfbScreen->setXCutText = defaultSetXCutText; + rfbScreen->getCursorPtr = defaultGetCursorPtr; + rfbScreen->setTranslateFunction = rfbSetTranslateFunction; + rfbScreen->newClientHook = defaultNewClientHook; + rfbScreen->displayHook = 0; + rfbScreen->inetdDisconnectHook = 0; + + /* initialize client list and iterator mutex */ + rfbClientListInit(rfbScreen); + + return(rfbScreen); +} + +void rfbScreenCleanup(rfbScreenInfoPtr rfbScreen) +{ + rfbClientIteratorPtr i=rfbGetClientIterator(rfbScreen); + rfbClientPtr cl,cl1=rfbClientIteratorNext(i); + while(cl1) { + cl=rfbClientIteratorNext(i); + rfbClientConnectionGone(cl1); + cl1=cl; + } + rfbReleaseClientIterator(i); + + /* TODO: hang up on all clients and free all reserved memory */ +#define FREE_IF(x) if(rfbScreen->x) free(rfbScreen->x) + FREE_IF(colourMap.data.bytes); + FREE_IF(underCursorBuffer); + TINI_MUTEX(rfbScreen->cursorMutex); + free(rfbScreen); +} + +void rfbInitServer(rfbScreenInfoPtr rfbScreen) +{ +#ifdef WIN32 + WSADATA trash; + int i=WSAStartup(MAKEWORD(2,2),&trash); +#endif + rfbInitSockets(rfbScreen); + httpInitSockets(rfbScreen); +} + +#ifdef WIN32 +#include <fcntl.h> +#include <conio.h> +#include <sys/timeb.h> + +void gettimeofday(struct timeval* tv,char* dummy) +{ + SYSTEMTIME t; + GetSystemTime(&t); + tv->tv_sec=t.wHour*3600+t.wMinute*60+t.wSecond; + tv->tv_usec=t.wMilliseconds*1000; +} +#endif + +void +rfbProcessEvents(rfbScreenInfoPtr rfbScreen,long usec) +{ + rfbClientIteratorPtr i; + rfbClientPtr cl,clPrev; + struct timeval tv; + + if(usec<0) + usec=rfbScreen->rfbDeferUpdateTime*1000; + + rfbCheckFds(rfbScreen,usec); + httpCheckFds(rfbScreen); +#ifdef CORBA + corbaCheckFds(rfbScreen); +#endif + + i = rfbGetClientIterator(rfbScreen); + cl=rfbClientIteratorNext(i); + while(cl) { + if(cl->sock>=0 && (!cl->onHold) && FB_UPDATE_PENDING(cl)) { + if(cl->screen->rfbDeferUpdateTime == 0) { + rfbSendFramebufferUpdate(cl,cl->modifiedRegion); + } else if(cl->startDeferring.tv_usec == 0) { + gettimeofday(&cl->startDeferring,NULL); + if(cl->startDeferring.tv_usec == 0) + cl->startDeferring.tv_usec++; + } else { + gettimeofday(&tv,NULL); + if(tv.tv_sec < cl->startDeferring.tv_sec /* at midnight */ + || ((tv.tv_sec-cl->startDeferring.tv_sec)*1000 + +(tv.tv_usec-cl->startDeferring.tv_usec)/1000) + > cl->screen->rfbDeferUpdateTime) { + cl->startDeferring.tv_usec = 0; + rfbSendFramebufferUpdate(cl,cl->modifiedRegion); + } + } + } + clPrev=cl; + cl=rfbClientIteratorNext(i); + if(clPrev->sock==-1) + rfbClientConnectionGone(clPrev); + } + rfbReleaseClientIterator(i); +} + +void rfbRunEventLoop(rfbScreenInfoPtr rfbScreen, long usec, Bool runInBackground) +{ + if(runInBackground) { +#ifdef HAVE_PTHREADS + pthread_t listener_thread; + + rfbScreen->backgroundLoop = TRUE; + + pthread_create(&listener_thread, NULL, listenerRun, rfbScreen); + return; +#else + fprintf(stderr,"Can't run in background, because I don't have PThreads!\n"); + exit(-1); +#endif + } + + if(usec<0) + usec=rfbScreen->rfbDeferUpdateTime*1000; + + while(1) + rfbProcessEvents(rfbScreen,usec); +} diff --git a/krfb/libvncserver/pnmshow.c b/krfb/libvncserver/pnmshow.c new file mode 100644 index 00000000..05e45b9c --- /dev/null +++ b/krfb/libvncserver/pnmshow.c @@ -0,0 +1,81 @@ +#include <stdio.h> +#include "rfb.h" +#include "keysym.h" + +void HandleKey(Bool down,KeySym key,rfbClientPtr cl) +{ + if(down && (key==XK_Escape || key=='q' || key=='Q')) + rfbCloseClient(cl); +} + +int main(int argc,char** argv) +{ + FILE* in=stdin; + int i,j,k,width,height,paddedWidth; + unsigned char buffer[1024]; + rfbScreenInfoPtr rfbScreen; + + if(argc>1) { + in=fopen(argv[1],"rb"); + if(!in) { + printf("Couldn't find file %s.\n",argv[1]); + exit(1); + } + } + + fgets(buffer,1024,in); + if(strncmp(buffer,"P6",2)) { + printf("Not a ppm.\n"); + exit(2); + } + + /* skip comments */ + do { + fgets(buffer,1024,in); + } while(buffer[0]=='#'); + + /* get width & height */ + sscanf(buffer,"%d %d",&width,&height); + fprintf(stderr,"Got width %d and height %d.\n",width,height); + fgets(buffer,1024,in); + + /* vncviewers have problems with widths which are no multiple of 4. */ + paddedWidth = width; + if(width&3) + paddedWidth+=4-(width&3); + + /* initialize data for vnc server */ + rfbScreen = rfbGetScreen(&argc,argv,paddedWidth,height,8,3,4); + if(argc>1) + rfbScreen->desktopName = argv[1]; + else + rfbScreen->desktopName = "Picture"; + rfbScreen->rfbAlwaysShared = TRUE; + rfbScreen->kbdAddEvent = HandleKey; + + /* enable http */ + rfbScreen->httpDir = "./classes"; + + /* allocate picture and read it */ + rfbScreen->frameBuffer = (char*)malloc(paddedWidth*4*height); + fread(rfbScreen->frameBuffer,width*3,height,in); + fclose(in); + + /* correct the format to 4 bytes instead of 3 (and pad to paddedWidth) */ + for(j=height-1;j>=0;j--) { + for(i=width-1;i>=0;i--) + for(k=2;k>=0;k--) + rfbScreen->frameBuffer[(j*paddedWidth+i)*4+k]= + rfbScreen->frameBuffer[(j*width+i)*3+k]; + for(i=width*4;i<paddedWidth*4;i++) + rfbScreen->frameBuffer[j*paddedWidth*4+i]=0; + } + + /* initialize server */ + rfbInitServer(rfbScreen); + + /* run event loop */ + rfbRunEventLoop(rfbScreen,40000,FALSE); + + return(0); +} diff --git a/krfb/libvncserver/pnmshow24.c b/krfb/libvncserver/pnmshow24.c new file mode 100644 index 00000000..3978f00e --- /dev/null +++ b/krfb/libvncserver/pnmshow24.c @@ -0,0 +1,90 @@ +#ifndef ALLOW24BPP +#error "I need the ALLOW24BPP flag to work" +#endif + +#include <stdio.h> +#include "rfb.h" +#include "keysym.h" + +void HandleKey(Bool down,KeySym key,rfbClientPtr cl) +{ + if(down && (key==XK_Escape || key=='q' || key=='Q')) + rfbCloseClient(cl); +} + +int main(int argc,char** argv) +{ + FILE* in=stdin; + int j,width,height,paddedWidth; + unsigned char buffer[1024]; + rfbScreenInfoPtr rfbScreen; + + if(argc>1) { + in=fopen(argv[1],"rb"); + if(!in) { + printf("Couldn't find file %s.\n",argv[1]); + exit(1); + } + } + + fgets(buffer,1024,in); + if(strncmp(buffer,"P6",2)) { + printf("Not a ppm.\n"); + exit(2); + } + + /* skip comments */ + do { + fgets(buffer,1024,in); + } while(buffer[0]=='#'); + + /* get width & height */ + sscanf(buffer,"%d %d",&width,&height); + fprintf(stderr,"Got width %d and height %d.\n",width,height); + fgets(buffer,1024,in); + + /* vncviewers have problems with widths which are no multiple of 4. */ + paddedWidth = width; + + /* if your vncviewer doesn't have problems with a width + which is not a multiple of 4, you can comment this. */ + if(width&3) + paddedWidth+=4-(width&3); + + /* initialize data for vnc server */ + rfbScreen = rfbGetScreen(&argc,argv,paddedWidth,height,8,3,3); + if(argc>1) + rfbScreen->desktopName = argv[1]; + else + rfbScreen->desktopName = "Picture"; + rfbScreen->rfbAlwaysShared = TRUE; + rfbScreen->kbdAddEvent = HandleKey; + + /* enable http */ + rfbScreen->httpDir = "./classes"; + + /* allocate picture and read it */ + rfbScreen->frameBuffer = (char*)malloc(paddedWidth*3*height); + fread(rfbScreen->frameBuffer,width*3,height,in); + fclose(in); + + /* pad to paddedWidth */ + if(width != paddedWidth) { + int padCount = 3*(paddedWidth - width); + for(j=height-1;j>=0;j--) { + memmove(rfbScreen->frameBuffer+3*paddedWidth*j, + rfbScreen->frameBuffer+3*width*j, + 3*width); + memset(rfbScreen->frameBuffer+3*paddedWidth*(j+1)-padCount, + 0,padCount); + } + } + + /* initialize server */ + rfbInitServer(rfbScreen); + + /* run event loop */ + rfbRunEventLoop(rfbScreen,40000,FALSE); + + return(0); +} diff --git a/krfb/libvncserver/radon.h b/krfb/libvncserver/radon.h new file mode 100644 index 00000000..6aa5242f --- /dev/null +++ b/krfb/libvncserver/radon.h @@ -0,0 +1,195 @@ +unsigned char radonFontData[2280]={ +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 32 */ +0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x10,0x10,0x00,0x00, /* 33 */ +0x00,0x28,0x28,0x28,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 34 */ +0x00,0x44,0x44,0xba,0x44,0x44,0x44,0xba,0x44,0x44,0x00,0x00, /* 35 */ +0x10,0x7e,0x80,0x90,0x80,0x7c,0x02,0x12,0x02,0xfc,0x10,0x00, /* 36 */ +0x00,0x62,0x92,0x94,0x68,0x10,0x2c,0x52,0x92,0x8c,0x00,0x00, /* 37 */ +0x00,0x60,0x90,0x90,0x40,0x20,0x90,0x8a,0x84,0x7a,0x00,0x00, /* 38 */ +0x00,0x10,0x10,0x10,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 39 */ +0x00,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x08,0x00,0x00, /* 40 */ +0x00,0x10,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x10,0x00,0x00, /* 41 */ +0x00,0x10,0x92,0x54,0x10,0x10,0x54,0x92,0x10,0x00,0x00,0x00, /* 42 */ +0x00,0x00,0x10,0x10,0x10,0xd6,0x10,0x10,0x10,0x00,0x00,0x00, /* 43 */ +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x08,0x30,0x00, /* 44 */ +0x00,0x00,0x00,0x00,0x00,0xfe,0x00,0x00,0x00,0x00,0x00,0x00, /* 45 */ +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x00,0x00, /* 46 */ +0x00,0x02,0x02,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x00,0x00, /* 47 */ +0x00,0x7c,0x82,0x82,0x82,0xba,0x82,0x82,0x82,0x7c,0x00,0x00, /* 48 */ +0x00,0x08,0x28,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x00,0x00, /* 49 */ +0x00,0xfc,0x02,0x02,0x02,0x7c,0x80,0x80,0x00,0xfe,0x00,0x00, /* 50 */ +0x00,0xfc,0x02,0x02,0x02,0x3c,0x02,0x02,0x02,0xfc,0x00,0x00, /* 51 */ +0x00,0x82,0x82,0x82,0x82,0x7a,0x02,0x02,0x02,0x02,0x00,0x00, /* 52 */ +0x00,0xfe,0x00,0x80,0x80,0x7c,0x02,0x02,0x02,0xfc,0x00,0x00, /* 53 */ +0x00,0x7c,0x80,0x80,0xbc,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 54 */ +0x00,0xfc,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00,0x00, /* 55 */ +0x00,0x7c,0x82,0x82,0x82,0x7c,0x82,0x82,0x82,0x7c,0x00,0x00, /* 56 */ +0x00,0x7c,0x82,0x82,0x82,0x82,0x7a,0x02,0x02,0xfc,0x00,0x00, /* 57 */ +0x00,0x00,0x10,0x10,0x00,0x00,0x00,0x10,0x10,0x00,0x00,0x00, /* 58 */ +0x00,0x00,0x10,0x10,0x00,0x00,0x00,0x10,0x10,0x60,0x00,0x00, /* 59 */ +0x00,0x08,0x08,0x10,0x20,0x40,0x20,0x10,0x08,0x08,0x00,0x00, /* 60 */ +0x00,0x00,0x00,0x00,0xfe,0x00,0xfe,0x00,0x00,0x00,0x00,0x00, /* 61 */ +0x00,0x10,0x10,0x08,0x04,0x02,0x04,0x08,0x10,0x10,0x00,0x00, /* 62 */ +0x00,0xfc,0x02,0x02,0x02,0x1c,0x20,0x20,0x00,0x20,0x00,0x00, /* 63 */ +0x00,0x7c,0x82,0x8a,0x92,0x92,0x92,0x8c,0x80,0x7c,0x00,0x00, /* 64 */ +0x00,0x7c,0x82,0x82,0x82,0x82,0xba,0x82,0x82,0x82,0x00,0x00, /* 65 */ +0x00,0xbc,0x82,0x82,0x82,0xbc,0x82,0x82,0x82,0xbc,0x00,0x00, /* 66 */ +0x00,0x7c,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x7c,0x00,0x00, /* 67 */ +0x00,0xbc,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0xbc,0x00,0x00, /* 68 */ +0x00,0x7c,0x80,0x80,0x80,0xb8,0x80,0x80,0x80,0x7c,0x00,0x00, /* 69 */ +0x00,0x7c,0x80,0x80,0x80,0xb8,0x80,0x80,0x80,0x80,0x00,0x00, /* 70 */ +0x00,0x7c,0x80,0x80,0x80,0x80,0x9a,0x82,0x82,0x7c,0x00,0x00, /* 71 */ +0x00,0x82,0x82,0x82,0x82,0xba,0x82,0x82,0x82,0x82,0x00,0x00, /* 72 */ +0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 73 */ +0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x84,0x78,0x00,0x00, /* 74 */ +0x00,0x82,0x82,0x82,0x82,0xbc,0x82,0x82,0x82,0x82,0x00,0x00, /* 75 */ +0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x7e,0x00,0x00, /* 76 */ +0x00,0x7c,0x82,0x92,0x92,0x92,0x92,0x82,0x82,0x82,0x00,0x00, /* 77 */ +0x00,0x7c,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x00,0x00, /* 78 */ +0x00,0x7c,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 79 */ +0x00,0xbc,0x82,0x82,0x82,0xbc,0x80,0x80,0x80,0x80,0x00,0x00, /* 80 */ +0x00,0x7c,0x82,0x82,0x82,0x82,0x8a,0x8a,0x82,0x7c,0x00,0x00, /* 81 */ +0x00,0xbc,0x82,0x82,0x82,0xbc,0x82,0x82,0x82,0x82,0x00,0x00, /* 82 */ +0x00,0x7e,0x80,0x80,0x80,0x7c,0x02,0x02,0x02,0xfc,0x00,0x00, /* 83 */ +0x00,0xfe,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 84 */ +0x00,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 85 */ +0x00,0x82,0x82,0x82,0x82,0x82,0x84,0x88,0x90,0xa0,0x00,0x00, /* 86 */ +0x00,0x82,0x82,0x82,0x82,0x92,0x92,0x92,0x82,0x7c,0x00,0x00, /* 87 */ +0x00,0x82,0x82,0x82,0x82,0x7c,0x82,0x82,0x82,0x82,0x00,0x00, /* 88 */ +0x00,0x82,0x82,0x82,0x82,0x7c,0x00,0x10,0x10,0x10,0x00,0x00, /* 89 */ +0x00,0xfc,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x7e,0x00,0x00, /* 90 */ +0x00,0x1c,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x1c,0x00,0x00, /* 91 */ +0x00,0x80,0x80,0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x00,0x00, /* 92 */ +0x00,0x38,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x38,0x00,0x00, /* 93 */ +0x00,0x38,0x44,0x44,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 94 */ +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x00, /* 95 */ +0x00,0x08,0x08,0x08,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 96 */ +0x00,0x00,0x00,0x00,0x3c,0x02,0x3a,0x42,0x42,0x3c,0x00,0x00, /* 97 */ +0x00,0x00,0x40,0x40,0x5c,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 98 */ +0x00,0x00,0x00,0x00,0x3c,0x40,0x40,0x40,0x40,0x3c,0x00,0x00, /* 99 */ +0x00,0x00,0x02,0x02,0x3a,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 100 */ +0x00,0x00,0x00,0x00,0x3c,0x42,0x42,0x5c,0x40,0x3c,0x00,0x00, /* 101 */ +0x00,0x00,0x0c,0x10,0x10,0x10,0x54,0x10,0x10,0x10,0x00,0x00, /* 102 */ +0x00,0x00,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x3a,0x02,0x3c, /* 103 */ +0x00,0x00,0x40,0x40,0x5c,0x42,0x42,0x42,0x42,0x42,0x00,0x00, /* 104 */ +0x00,0x00,0x08,0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x00,0x00, /* 105 */ +0x00,0x00,0x08,0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x30, /* 106 */ +0x00,0x00,0x40,0x40,0x42,0x42,0x5c,0x42,0x42,0x42,0x00,0x00, /* 107 */ +0x00,0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x00,0x00, /* 108 */ +0x00,0x00,0x00,0x00,0x7c,0x82,0x92,0x92,0x92,0x92,0x00,0x00, /* 109 */ +0x00,0x00,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x42,0x00,0x00, /* 110 */ +0x00,0x00,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 111 */ +0x00,0x00,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x5c,0x40,0x40, /* 112 */ +0x00,0x00,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x3a,0x02,0x02, /* 113 */ +0x00,0x00,0x00,0x00,0x0c,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 114 */ +0x00,0x00,0x00,0x00,0x3e,0x40,0x3c,0x02,0x02,0x7c,0x00,0x00, /* 115 */ +0x00,0x00,0x10,0x10,0x10,0x54,0x10,0x10,0x10,0x0c,0x00,0x00, /* 116 */ +0x00,0x00,0x00,0x00,0x42,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 117 */ +0x00,0x00,0x00,0x00,0x42,0x42,0x42,0x44,0x48,0x50,0x00,0x00, /* 118 */ +0x00,0x00,0x00,0x00,0x92,0x92,0x92,0x92,0x82,0x7c,0x00,0x00, /* 119 */ +0x00,0x00,0x00,0x00,0x42,0x42,0x3c,0x42,0x42,0x42,0x00,0x00, /* 120 */ +0x00,0x00,0x00,0x00,0x42,0x42,0x42,0x42,0x42,0x3a,0x02,0x3c, /* 121 */ +0x00,0x00,0x00,0x00,0x7c,0x02,0x0c,0x30,0x40,0x3e,0x00,0x00, /* 122 */ +0x00,0x1c,0x20,0x20,0x20,0x40,0x20,0x20,0x20,0x1c,0x00,0x00, /* 123 */ +0x00,0x10,0x10,0x10,0x10,0x00,0x10,0x10,0x10,0x10,0x00,0x00, /* 124 */ +0x00,0x38,0x04,0x04,0x04,0x02,0x04,0x04,0x04,0x38,0x00,0x00, /* 125 */ +0x00,0x04,0x38,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 126 */ +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 160 */ +0x00,0x10,0x10,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 161 */ +0x00,0x00,0x08,0x3e,0x40,0x48,0x48,0x40,0x3e,0x08,0x00,0x00, /* 162 */ +0x00,0x1c,0x20,0x20,0x20,0xa8,0x20,0x20,0x42,0xbc,0x00,0x00, /* 163 */ +0x00,0x00,0x82,0x38,0x44,0x44,0x44,0x38,0x82,0x00,0x00,0x00, /* 164 */ +0x00,0x82,0x82,0x82,0x7c,0x00,0x54,0x10,0x54,0x10,0x00,0x00, /* 165 */ +0x00,0x10,0x10,0x10,0x00,0x00,0x00,0x10,0x10,0x10,0x00,0x00, /* 166 */ +0x00,0x38,0x40,0x38,0x44,0x44,0x44,0x44,0x38,0x04,0x38,0x00, /* 167 */ +0x6c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 168 */ +0x00,0x7c,0x82,0x9a,0xa2,0xa2,0xa2,0x9a,0x82,0x7c,0x00,0x00, /* 169 */ +0x38,0x04,0x34,0x44,0x38,0x00,0x7c,0x00,0x00,0x00,0x00,0x00, /* 170 */ +0x00,0x00,0x00,0x24,0x48,0x00,0x48,0x24,0x00,0x00,0x00,0x00, /* 171 */ +0x00,0x00,0x00,0x00,0x00,0xfc,0x02,0x02,0x02,0x00,0x00,0x00, /* 172 */ +0x00,0x00,0x00,0x00,0x00,0x7c,0x00,0x00,0x00,0x00,0x00,0x00, /* 173 */ +0x00,0x7c,0x82,0x92,0xaa,0xb2,0xaa,0xaa,0x82,0x7c,0x00,0x00, /* 174 */ +0x7c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 175 */ +0x38,0x44,0x44,0x44,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 176 */ +0x00,0x10,0x10,0xd6,0x10,0x10,0x00,0xfe,0x00,0x00,0x00,0x00, /* 177 */ +0x38,0x04,0x18,0x20,0x3c,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 178 */ +0x38,0x04,0x38,0x04,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 179 */ +0x18,0x20,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 180 */ +0x00,0x00,0x00,0x00,0x44,0x44,0x44,0x44,0x44,0x58,0x40,0x40, /* 181 */ +0x00,0x79,0xfa,0xfa,0xfa,0x7a,0x02,0x0a,0x0a,0x0a,0x0a,0x00, /* 182 */ +0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00, /* 183 */ +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x10,0x00, /* 184 */ +0x08,0x18,0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 185 */ +0x38,0x44,0x44,0x38,0x00,0x7c,0x00,0x00,0x00,0x00,0x00,0x00, /* 186 */ +0x00,0x00,0x00,0x48,0x24,0x00,0x24,0x48,0x00,0x00,0x00,0x00, /* 187 */ +0x20,0xa2,0x22,0x22,0x24,0x08,0x10,0x29,0x49,0x85,0x01,0x01, /* 188 */ +0x20,0xa2,0x22,0x22,0x24,0x08,0x10,0x2e,0x41,0x86,0x08,0x0f, /* 189 */ +0xe0,0x12,0xe2,0x12,0xe4,0x08,0x10,0x29,0x49,0x85,0x01,0x01, /* 190 */ +0x00,0x08,0x00,0x08,0x08,0x70,0x80,0x80,0x80,0x7e,0x00,0x00, /* 191 */ +0x20,0x18,0x00,0x7c,0x82,0x82,0x82,0xba,0x82,0x82,0x00,0x00, /* 192 */ +0x08,0x30,0x00,0x7c,0x82,0x82,0x82,0xba,0x82,0x82,0x00,0x00, /* 193 */ +0x38,0x44,0x00,0x7c,0x82,0x82,0x82,0xba,0x82,0x82,0x00,0x00, /* 194 */ +0x32,0x4c,0x00,0x7c,0x82,0x82,0x82,0xba,0x82,0x82,0x00,0x00, /* 195 */ +0x6c,0x00,0x00,0x7c,0x82,0x82,0x82,0xba,0x82,0x82,0x00,0x00, /* 196 */ +0x38,0x44,0x38,0x7c,0x82,0x82,0x82,0xba,0x82,0x82,0x00,0x00, /* 197 */ +0x00,0x77,0x88,0x88,0x88,0x8b,0xa8,0x88,0x88,0x8b,0x00,0x00, /* 198 */ +0x00,0x7c,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x6c,0x10,0x20, /* 199 */ +0x20,0x18,0x00,0x7c,0x80,0x80,0xb8,0x80,0x80,0x7c,0x00,0x00, /* 200 */ +0x08,0x30,0x00,0x7c,0x80,0x80,0xb8,0x80,0x80,0x7c,0x00,0x00, /* 201 */ +0x38,0x44,0x00,0x7c,0x80,0x80,0xb8,0x80,0x80,0x7c,0x00,0x00, /* 202 */ +0x6c,0x00,0x00,0x7c,0x80,0x80,0xb8,0x80,0x80,0x7c,0x00,0x00, /* 203 */ +0x20,0x18,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 204 */ +0x08,0x30,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 205 */ +0x38,0x44,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 206 */ +0x6c,0x00,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 207 */ +0x00,0xbc,0x82,0x82,0x82,0xb2,0x82,0x82,0x82,0xbc,0x00,0x00, /* 208 */ +0x32,0x4c,0x00,0x7c,0x82,0x82,0x82,0x82,0x82,0x82,0x00,0x00, /* 209 */ +0x20,0x18,0x00,0x7c,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 210 */ +0x08,0x30,0x00,0x7c,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 211 */ +0x38,0x44,0x00,0x7c,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 212 */ +0x32,0x4c,0x00,0x7c,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 213 */ +0x6c,0x00,0x00,0x7c,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 214 */ +0x00,0x00,0x00,0x00,0x44,0x28,0x00,0x28,0x44,0x00,0x00,0x00, /* 215 */ +0x00,0x7a,0x84,0x82,0x8a,0x92,0xa2,0x82,0x42,0xbc,0x00,0x00, /* 216 */ +0x20,0x18,0x00,0x82,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 217 */ +0x08,0x30,0x00,0x82,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 218 */ +0x38,0x44,0x00,0x82,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 219 */ +0x6c,0x00,0x00,0x82,0x82,0x82,0x82,0x82,0x82,0x7c,0x00,0x00, /* 220 */ +0x08,0xb2,0x82,0x82,0x82,0x7c,0x00,0x10,0x10,0x10,0x00,0x00, /* 221 */ +0x00,0x80,0x80,0xbc,0x82,0x82,0x82,0xbc,0x80,0x80,0x00,0x00, /* 222 */ +0x00,0x3c,0x42,0x42,0x42,0x5c,0x42,0x42,0x42,0x9c,0x00,0x00, /* 223 */ +0x20,0x18,0x00,0x00,0x3c,0x02,0x3a,0x42,0x42,0x3c,0x00,0x00, /* 224 */ +0x08,0x30,0x00,0x00,0x3c,0x02,0x3a,0x42,0x42,0x3c,0x00,0x00, /* 225 */ +0x38,0x44,0x00,0x00,0x3c,0x02,0x3a,0x42,0x42,0x3c,0x00,0x00, /* 226 */ +0x32,0x4c,0x00,0x00,0x3c,0x02,0x3a,0x42,0x42,0x3c,0x00,0x00, /* 227 */ +0x6c,0x00,0x00,0x00,0x3c,0x02,0x3a,0x42,0x42,0x3c,0x00,0x00, /* 228 */ +0x18,0x24,0x18,0x00,0x3c,0x02,0x3a,0x42,0x42,0x3c,0x00,0x00, /* 229 */ +0x00,0x00,0x00,0x00,0x6c,0x12,0x52,0x94,0x90,0x6e,0x00,0x00, /* 230 */ +0x00,0x00,0x00,0x00,0x3c,0x40,0x40,0x40,0x40,0x34,0x08,0x10, /* 231 */ +0x20,0x18,0x00,0x00,0x3c,0x42,0x42,0x5c,0x40,0x3c,0x00,0x00, /* 232 */ +0x08,0x30,0x00,0x00,0x3c,0x42,0x42,0x5c,0x40,0x3c,0x00,0x00, /* 233 */ +0x38,0x44,0x00,0x00,0x3c,0x42,0x42,0x5c,0x40,0x3c,0x00,0x00, /* 234 */ +0x6c,0x00,0x00,0x00,0x3c,0x42,0x42,0x5c,0x40,0x3c,0x00,0x00, /* 235 */ +0x20,0x18,0x00,0x10,0x00,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 236 */ +0x08,0x30,0x00,0x10,0x00,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 237 */ +0x38,0x44,0x00,0x10,0x00,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 238 */ +0x6c,0x00,0x00,0x10,0x00,0x10,0x10,0x10,0x10,0x10,0x00,0x00, /* 239 */ +0x00,0x14,0x08,0x14,0x02,0x3a,0x42,0x42,0x42,0x3c,0x00,0x00, /* 240 */ +0x00,0x32,0x4c,0x00,0x3c,0x42,0x42,0x42,0x42,0x42,0x00,0x00, /* 241 */ +0x20,0x18,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 242 */ +0x08,0x30,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 243 */ +0x38,0x44,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 244 */ +0x32,0x4c,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 245 */ +0x6c,0x00,0x00,0x00,0x3c,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 246 */ +0x00,0x00,0x00,0x00,0x38,0x00,0xfe,0x00,0x38,0x00,0x00,0x00, /* 247 */ +0x00,0x00,0x00,0x00,0x3a,0x44,0x4a,0x52,0x22,0x5c,0x00,0x00, /* 248 */ +0x20,0x18,0x00,0x00,0x42,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 249 */ +0x08,0x30,0x00,0x00,0x42,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 250 */ +0x38,0x44,0x00,0x00,0x42,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 251 */ +0x6c,0x00,0x00,0x00,0x42,0x42,0x42,0x42,0x42,0x3c,0x00,0x00, /* 252 */ +0x04,0x18,0x00,0x00,0x42,0x42,0x42,0x42,0x42,0x3a,0x02,0x3c, /* 253 */ +0x00,0x80,0x80,0x9c,0xa2,0x82,0xa2,0x9c,0x80,0x80,0x00,0x00, /* 254 */ +}; +int radonFontMetaData[256*5]={ 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+rfbFontData radonFont={radonFontData, radonFontMetaData}; diff --git a/krfb/libvncserver/rfb.h b/krfb/libvncserver/rfb.h new file mode 100644 index 00000000..53996812 --- /dev/null +++ b/krfb/libvncserver/rfb.h @@ -0,0 +1,865 @@ +#ifndef RFB_H +#define RFB_H + +/* + * rfb.h - header file for RFB DDX implementation. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#if(defined __cplusplus) +extern "C" +{ +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <zlib.h> +#include "keysym.h" + +/* TODO: this stuff has to go into autoconf */ +typedef unsigned char CARD8; +typedef unsigned short CARD16; + +#ifdef LONG64 +typedef unsigned long CARD64; +typedef unsigned int CARD32; +#else +typedef unsigned long CARD32; +#endif + +typedef CARD32 Pixel; +/* typedef CARD32 KeySym; */ +#ifndef __osf__ +typedef unsigned long KeySym; +#endif +#define SIGNED signed +/* for some strange reason, "typedef signed char Bool;" yields a four byte + signed int on IRIX, but only for rfbserver.o!!! */ +#ifdef Bool +#undef Bool +#endif +#define Bool signed char +#undef FALSE +#define FALSE 0 +#undef TRUE +#define TRUE -1 + +#include "rfbproto.h" + +#ifdef __linux__ +#include <endian.h> +#elif defined(__APPLE__) || defined(__FreeBSD__) +#include <sys/types.h> +#include <machine/endian.h> +#ifndef _BYTE_ORDER +#define _BYTE_ORDER BYTE_ORDER +#endif +#ifndef _LITTLE_ENDIAN +#define _LITTLE_ENDIAN LITTLE_ENDIAN +#endif +#elif defined (__SVR4) && defined (__sun) /* Solaris */ +#include <sys/types.h> +#if defined(__sparc) + /* SPARC here (big endian) */ +#define _BYTE_ORDER 4321 +#elif defined(__i386) +#define _BYTE_ORDER 1234 +#else +#error Solaris 2.5.1 had ppc support did it not? :-) +#endif +#undef Bool +#define Bool char +#undef SIGNED +#define SIGNED +#include <sys/types.h> +/* typedef unsigned int pthread_t; */ +#elif defined(WIN32) +#define _LITTLE_ENDIAN 1234 +#define _BYTE_ORDER _LITTLE_ENDIAN +#undef Bool +#define Bool int +#elif defined(_AIX) +#define _BYTE_ORDER 4321 +#undef Bool +#define Bool int +#else +#ifdef __osf__ +#include <machine/endian.h> +#define _BYTE_ORDER BYTE_ORDER +#else +#include <sys/endian.h> +#endif +#endif + +#ifndef _BYTE_ORDER +#define _BYTE_ORDER __BYTE_ORDER +#endif + +#if !defined(_LITTLE_ENDIAN) && defined(__LITTLE_ENDIAN) +#define _LITTLE_ENDIAN __LITTLE_ENDIAN +#endif + +#ifdef WIN32 +#include <sys/timeb.h> +#include <winsock.h> +#undef SOCKET +#define SOCKET int +#else +#define max(a,b) (((a)>(b))?(a):(b)) +#include <sys/time.h> +#include <netinet/in.h> +#define SOCKET int +#endif + +#ifndef INADDR_NONE +#define INADDR_NONE ((in_addr_t) 0xffffffff) +#endif + +#ifdef HAVE_PTHREADS +#include <pthread.h> +#if 0 /* debugging */ +#define LOCK(mutex) fprintf(stderr,"%s:%d LOCK(%s,0x%x)\n",__FILE__,__LINE__,#mutex,&(mutex)) +#define UNLOCK(mutex) fprintf(stderr,"%s:%d UNLOCK(%s,0x%x)\n",__FILE__,__LINE__,#mutex,&(mutex)) +#define MUTEX(mutex) int mutex +#define INIT_MUTEX(mutex) fprintf(stderr,"%s:%d INIT_MUTEX(%s,0x%x)\n",__FILE__,__LINE__,#mutex,&(mutex)) +#define TINI_MUTEX(mutex) fprintf(stderr,"%s:%d TINI_MUTEX(%s)\n",__FILE__,__LINE__,#mutex) +#define SIGNAL(cond) fprintf(stderr,"%s:%d SIGNAL(%s)\n",__FILE__,__LINE__,#cond) +#define WAIT(cond,mutex) /* fprintf(stderr,"%s:%d WAIT(%s,%s)\n",__FILE__,__LINE__,#cond,#mutex) */ +#define COND(cond) +#define INIT_COND(cond) fprintf(stderr,"%s:%d INIT_COND(%s)\n",__FILE__,__LINE__,#cond) +#define TINI_COND(cond) fprintf(stderr,"%s:%d TINI_COND(%s)\n",__FILE__,__LINE__,#cond) +#define IF_PTHREADS(x) +#else +#define LOCK(mutex) pthread_mutex_lock(&(mutex)); +#define UNLOCK(mutex) pthread_mutex_unlock(&(mutex)); +#define MUTEX(mutex) pthread_mutex_t (mutex) +#define INIT_MUTEX(mutex) pthread_mutex_init(&(mutex),NULL) +#define TINI_MUTEX(mutex) pthread_mutex_destroy(&(mutex)) +#define TSIGNAL(cond) pthread_cond_signal(&(cond)) +#define WAIT(cond,mutex) pthread_cond_wait(&(cond),&(mutex)) +#define TIMEDWAIT(cond,mutex,t) {struct timeval tv;\ + tv.tv_sec = (t) / 1000;\ + tv.tv_usec = ((t) % 1000) * 1000;\ + pthread_cond_timedwait(&(cond),&(mutex),&tv);} +#define COND(cond) pthread_cond_t (cond) +#define INIT_COND(cond) pthread_cond_init(&(cond),NULL) +#define TINI_COND(cond) pthread_cond_destroy(&(cond)) +#define IF_PTHREADS(x) x +#endif +#else +#define LOCK(mutex) +#define UNLOCK(mutex) +#define MUTEX(mutex) +#define INIT_MUTEX(mutex) +#define TINI_MUTEX(mutex) +#define TSIGNAL(cond) +#define WAIT(cond,mutex) this_is_unsupported +#define COND(cond) +#define INIT_COND(cond) +#define TINI_COND(cond) +#define IF_PTHREADS(x) +#endif + +/* end of stuff for autoconf */ + +/* if you use pthreads, but don't define HAVE_PTHREADS, the structs + get all mixed up. So this gives a linker error reminding you to compile + the library and your application (at least the parts including rfb.h) + with the same support for pthreads. */ +#ifdef HAVE_PTHREADS +#define rfbInitServer rfbInitServerWithPthreads +#else +#define rfbInitServer rfbInitServerWithoutPthreads +#endif + +#define MAX_ENCODINGS 10 + +struct _rfbClientRec; +struct _rfbScreenInfo; +struct rfbCursor; + +enum rfbNewClientAction { + RFB_CLIENT_ACCEPT, + RFB_CLIENT_ON_HOLD, + RFB_CLIENT_REFUSE +}; + +typedef void (*KbdAddEventProcPtr) (Bool down, KeySym keySym, struct _rfbClientRec* cl); +typedef void (*KbdReleaseAllKeysProcPtr) (struct _rfbClientRec* cl); +typedef void (*PtrAddEventProcPtr) (int buttonMask, int x, int y, struct _rfbClientRec* cl); +typedef void (*SetXCutTextProcPtr) (char* str,int len, struct _rfbClientRec* cl); +typedef struct rfbCursor* (*GetCursorProcPtr) (struct _rfbClientRec* pScreen); +typedef Bool (*SetTranslateFunctionProcPtr)(struct _rfbClientRec* cl); +typedef Bool (*PasswordCheckProcPtr)(struct _rfbClientRec* cl,const char* encryptedPassWord,int len); +typedef enum rfbNewClientAction (*NewClientHookPtr)(struct _rfbClientRec* cl); +typedef void (*DisplayHookPtr)(struct _rfbClientRec* cl); +typedef void (*InetdDisconnectPtr)(); + +typedef struct { + CARD32 count; + Bool is16; /* is the data format short? */ + union { + CARD8* bytes; + CARD16* shorts; + } data; /* there have to be count*3 entries */ +} rfbColourMap; + +/* + * Per-screen (framebuffer) structure. There can be as many as you wish, + * each serving different clients. However, you have to call + * rfbProcessEvents for each of these. + */ + +typedef struct _rfbScreenInfo +{ + int width; + int paddedWidthInBytes; + int height; + int depth; + int bitsPerPixel; + int sizeInBytes; + + Pixel blackPixel; + Pixel whitePixel; + + /* some screen specific data can be put into a struct where screenData + * points to. You need this if you have more than one screen at the + * same time while using the same functions. + */ + void* screenData; + + /* The following two members are used to minimise the amount of unnecessary + drawing caused by cursor movement. Whenever any drawing affects the + part of the screen where the cursor is, the cursor is removed first and + then the drawing is done (this is what the sprite routines test for). + Afterwards, however, we do not replace the cursor, even when the cursor + is logically being moved across the screen. We only draw the cursor + again just as we are about to send the client a framebuffer update. + + We need to be careful when removing and drawing the cursor because of + their relationship with the normal drawing routines. The drawing + routines can invoke the cursor routines, but also the cursor routines + themselves end up invoking drawing routines. + + Removing the cursor (rfbUndrawCursor) is eventually achieved by + doing a CopyArea from a pixmap to the screen, where the pixmap contains + the saved contents of the screen under the cursor. Before doing this, + however, we set cursorIsDrawn to FALSE. Then, when CopyArea is called, + it sees that cursorIsDrawn is FALSE and so doesn't feel the need to + (recursively!) remove the cursor before doing it. + + Putting up the cursor (rfbDrawCursor) involves a call to + PushPixels. While this is happening, cursorIsDrawn must be FALSE so + that PushPixels doesn't think it has to remove the cursor first. + Obviously cursorIsDrawn is set to TRUE afterwards. + + Another problem we face is that drawing routines sometimes cause a + framebuffer update to be sent to the RFB client. When the RFB client is + already waiting for a framebuffer update and some drawing to the + framebuffer then happens, the drawing routine sees that the client is + ready, so it calls rfbSendFramebufferUpdate. If the cursor is not drawn + at this stage, it must be put up, and so rfbSpriteRestoreCursor is + called. However, if the original drawing routine was actually called + from within rfbSpriteRestoreCursor or rfbSpriteRemoveCursor we don't + want this to happen. So both the cursor routines set + dontSendFramebufferUpdate to TRUE, and all the drawing routines check + this before calling rfbSendFramebufferUpdate. */ + + Bool cursorIsDrawn; /* TRUE if the cursor is currently drawn */ + Bool dontSendFramebufferUpdate; /* TRUE while removing or drawing the + cursor */ + + /* additions by libvncserver */ + + rfbPixelFormat rfbServerFormat; + rfbColourMap colourMap; /* set this if rfbServerFormat.trueColour==FALSE */ + const char* desktopName; + char rfbThisHost[255]; + + Bool autoPort; + int rfbPort; + SOCKET rfbListenSock; + int maxSock; + int maxFd; + fd_set allFds; + + Bool socketInitDone; + SOCKET inetdSock; + Bool inetdInitDone; + + int udpPort; + SOCKET udpSock; + struct _rfbClientRec* udpClient; + Bool udpSockConnected; + struct sockaddr_in udpRemoteAddr; + + int rfbMaxClientWait; + + /* http stuff */ + Bool httpInitDone; + int httpPort; + char* httpDir; + SOCKET httpListenSock; + SOCKET httpSock; + FILE* httpFP; + + PasswordCheckProcPtr passwordCheck; + void* rfbAuthPasswdData; + + /* this is the amount of milliseconds to wait at least before sending + * an update. */ + int rfbDeferUpdateTime; + char* rfbScreen; + Bool rfbAlwaysShared; + Bool rfbNeverShared; + Bool rfbDontDisconnect; + struct _rfbClientRec* rfbClientHead; + + /* cursor */ + int cursorX, cursorY,underCursorBufferLen; + char* underCursorBuffer; + Bool dontConvertRichCursorToXCursor; + struct rfbCursor* cursor; + + /* the frameBufferhas to be supplied by the serving process. + * The buffer will not be freed by + */ + char* frameBuffer; + KbdAddEventProcPtr kbdAddEvent; + KbdReleaseAllKeysProcPtr kbdReleaseAllKeys; + PtrAddEventProcPtr ptrAddEvent; + SetXCutTextProcPtr setXCutText; + GetCursorProcPtr getCursorPtr; + SetTranslateFunctionProcPtr setTranslateFunction; + + /* newClientHook is called just after a new client is created */ + NewClientHookPtr newClientHook; + /* displayHook is called just before a frame buffer update */ + DisplayHookPtr displayHook; + /* inetdDisconnectHook is called when the connection has been + interrupted before a client could connect. */ + InetdDisconnectPtr inetdDisconnectHook; +#ifdef HAVE_PTHREADS + MUTEX(cursorMutex); + Bool backgroundLoop; +#endif + +} rfbScreenInfo, *rfbScreenInfoPtr; + + +/* + * rfbTranslateFnType is the type of translation functions. + */ + +typedef void (*rfbTranslateFnType)(char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height); + + +/* + * vncauth.h - describes the functions provided by the vncauth library. + */ + +#define MAXPWLEN 8 +#define CHALLENGESIZE 16 + +extern int vncEncryptAndStorePasswd(char *passwd, char *fname); +extern char *vncDecryptPasswdFromFile(char *fname); +extern void vncRandomBytes(unsigned char *bytes); +extern void vncEncryptBytes(unsigned char *bytes, char *passwd); + +/* region stuff */ + +struct sraRegion; +typedef struct sraRegion* sraRegionPtr; + +/* + * Per-client structure. + */ + +typedef void (*ClientGoneHookPtr)(struct _rfbClientRec* cl); +typedef void (*NegotiationFinishedHookPtr)(struct _rfbClientRec* cl); + +typedef struct _rfbClientRec { + + /* back pointer to the screen */ + rfbScreenInfoPtr screen; + + /* private data. You should put any application client specific data + * into a struct and let clientData point to it. Don't forget to + * free the struct via clientGoneHook! + * + * This is useful if the IO functions have to behave client specific. + */ + void* clientData; + + ClientGoneHookPtr clientGoneHook; + + /* negotiationFinishedHook is called when the negotiation phase has ended */ + NegotiationFinishedHookPtr negotiationFinishedHook; + + SOCKET sock; + char *host; + +#ifdef HAVE_PTHREADS + pthread_t client_thread; +#endif + /* Possible client states: */ + enum { + RFB_PROTOCOL_VERSION, /* establishing protocol version */ + RFB_AUTHENTICATION, /* authenticating */ + RFB_INITIALISATION, /* sending initialisation messages */ + RFB_NORMAL /* normal protocol messages */ + } state; + + Bool reverseConnection; + Bool onHold; + Bool readyForSetColourMapEntries; + Bool useCopyRect; + int preferredEncoding; + int correMaxWidth, correMaxHeight; + + /* The following member is only used during VNC authentication */ + CARD8 authChallenge[CHALLENGESIZE]; + + /* The following members represent the update needed to get the client's + framebuffer from its present state to the current state of our + framebuffer. + + If the client does not accept CopyRect encoding then the update is + simply represented as the region of the screen which has been modified + (modifiedRegion). + + If the client does accept CopyRect encoding, then the update consists of + two parts. First we have a single copy from one region of the screen to + another (the destination of the copy is copyRegion), and second we have + the region of the screen which has been modified in some other way + (modifiedRegion). + + Although the copy is of a single region, this region may have many + rectangles. When sending an update, the copyRegion is always sent + before the modifiedRegion. This is because the modifiedRegion may + overlap parts of the screen which are in the source of the copy. + + In fact during normal processing, the modifiedRegion may even overlap + the destination copyRegion. Just before an update is sent we remove + from the copyRegion anything in the modifiedRegion. */ + + sraRegionPtr copyRegion; /* the destination region of the copy */ + int copyDX, copyDY; /* the translation by which the copy happens */ + + sraRegionPtr modifiedRegion; + + /* As part of the FramebufferUpdateRequest, a client can express interest + in a subrectangle of the whole framebuffer. This is stored in the + requestedRegion member. In the normal case this is the whole + framebuffer if the client is ready, empty if it's not. */ + + sraRegionPtr requestedRegion; + + /* The following member represents the state of the "deferred update" timer + - when the framebuffer is modified and the client is ready, in most + cases it is more efficient to defer sending the update by a few + milliseconds so that several changes to the framebuffer can be combined + into a single update. */ + + struct timeval startDeferring; + + /* translateFn points to the translation function which is used to copy + and translate a rectangle from the framebuffer to an output buffer. */ + + rfbTranslateFnType translateFn; + char *translateLookupTable; + rfbPixelFormat format; + + /* + * UPDATE_BUF_SIZE must be big enough to send at least one whole line of the + * framebuffer. So for a max screen width of say 2K with 32-bit pixels this + * means 8K minimum. + */ + +#define UPDATE_BUF_SIZE 30000 + + char updateBuf[UPDATE_BUF_SIZE]; + int ublen; + + /* statistics */ + + int rfbBytesSent[MAX_ENCODINGS]; + int rfbRectanglesSent[MAX_ENCODINGS]; + int rfbLastRectMarkersSent; + int rfbLastRectBytesSent; + int rfbCursorBytesSent; + int rfbCursorUpdatesSent; + int rfbFramebufferUpdateMessagesSent; + int rfbRawBytesEquivalent; + int rfbKeyEventsRcvd; + int rfbPointerEventsRcvd; + + /* zlib encoding -- necessary compression state info per client */ + + struct z_stream_s compStream; + Bool compStreamInited; + CARD32 zlibCompressLevel; + + /* tight encoding -- preserve zlib streams' state for each client */ + + z_stream zsStruct[4]; + Bool zsActive[4]; + int zsLevel[4]; + int tightCompressLevel; + int tightQualityLevel; + + /* soft cursor images */ + unsigned char *softSource; + int softSourceLen; + rfbSoftCursorSetImage *softCursorImages[rfbSoftCursorMaxImages]; + int nextUnusedSoftCursorImage; + + Bool enableLastRectEncoding; /* client supports LastRect encoding */ + Bool enableSoftCursorUpdates; /* client supports softcursor updates */ + Bool disableBackground; /* client wants to disable background */ + Bool enableCursorShapeUpdates; /* client supports cursor shape updates */ + Bool useRichCursorEncoding; /* rfbEncodingRichCursor is preferred */ + Bool cursorWasChanged; /* cursor shape update should be sent */ + Bool cursorWasMoved; /* cursor move shape update should be sent */ +#ifdef BACKCHANNEL + Bool enableBackChannel; +#endif + + struct _rfbClientRec *prev; + struct _rfbClientRec *next; + +#ifdef HAVE_PTHREADS + /* whenever a client is referenced, the refCount has to be incremented + and afterwards decremented, so that the client is not cleaned up + while being referenced. + Use the functions rfbIncrClientRef(cl) and rfbDecrClientRef(cl); + */ + int refCount; + MUTEX(refCountMutex); + COND(deleteCond); + + MUTEX(outputMutex); + MUTEX(updateMutex); + COND(updateCond); +#endif + +} rfbClientRec, *rfbClientPtr; + +/* + * This macro is used to test whether there is a framebuffer update needing to + * be sent to the client. + */ + +#define FB_UPDATE_PENDING(cl) \ + ((!(cl)->enableCursorShapeUpdates && !(cl)->screen->cursorIsDrawn) || \ + ((cl)->enableCursorShapeUpdates && (cl)->cursorWasChanged) || \ + !sraRgnEmpty((cl)->copyRegion) || !sraRgnEmpty((cl)->modifiedRegion)) + +/* + * Macros for endian swapping. + */ + +#define Swap16(s) ((((s) & 0xff) << 8) | (((s) >> 8) & 0xff)) + +#define Swap24(l) ((((l) & 0xff) << 16) | (((l) >> 16) & 0xff) | \ + (((l) & 0x00ff00))) + +#define Swap32(l) (((l) >> 24) | \ + (((l) & 0x00ff0000) >> 8) | \ + (((l) & 0x0000ff00) << 8) | \ + ((l) << 24)) + + +extern char rfbEndianTest; + +#define Swap16IfLE(s) (rfbEndianTest ? Swap16(s) : (s)) +#define Swap24IfLE(l) (rfbEndianTest ? Swap24(l) : (l)) +#define Swap32IfLE(l) (rfbEndianTest ? Swap32(l) : (l)) + +/* sockets.c */ + +extern int rfbMaxClientWait; + +extern void rfbInitSockets(rfbScreenInfoPtr rfbScreen); +extern void rfbDisconnectUDPSock(rfbScreenInfoPtr rfbScreen); +extern void rfbCloseClient(rfbClientPtr cl); +extern int ReadExact(rfbClientPtr cl, char *buf, int len); +extern int ReadExactTimeout(rfbClientPtr cl, char *buf, int len,int timeout); +extern int WriteExact(rfbClientPtr cl, const char *buf, int len); +extern void rfbCheckFds(rfbScreenInfoPtr rfbScreen,long usec); +extern int rfbConnect(rfbScreenInfoPtr rfbScreen, char* host, int port); +extern int ConnectToTcpAddr(char* host, int port); +extern int ListenOnTCPPort(int port); +extern int ListenOnUDPPort(int port); + +/* rfbserver.c */ + +extern rfbClientPtr pointerClient; + + +/* Routines to iterate over the client list in a thread-safe way. + Only a single iterator can be in use at a time process-wide. */ +typedef struct rfbClientIterator *rfbClientIteratorPtr; + +extern void rfbClientListInit(rfbScreenInfoPtr rfbScreen); +extern rfbClientIteratorPtr rfbGetClientIterator(rfbScreenInfoPtr rfbScreen); +extern rfbClientPtr rfbClientIteratorNext(rfbClientIteratorPtr iterator); +extern void rfbReleaseClientIterator(rfbClientIteratorPtr iterator); + +extern void rfbNewClientConnection(rfbScreenInfoPtr rfbScreen,int sock); +extern rfbClientPtr rfbNewClient(rfbScreenInfoPtr rfbScreen,int sock); +extern rfbClientPtr rfbNewUDPClient(rfbScreenInfoPtr rfbScreen); +extern rfbClientPtr rfbReverseConnection(rfbScreenInfoPtr rfbScreen,char *host, int port); +extern void rfbClientConnectionGone(rfbClientPtr cl); +extern void rfbProcessClientMessage(rfbClientPtr cl); +extern void rfbClientConnFailed(rfbClientPtr cl, char *reason); +extern void rfbNewUDPConnection(rfbScreenInfoPtr rfbScreen,int sock); +extern void rfbProcessUDPInput(rfbScreenInfoPtr rfbScreen); +extern Bool rfbSendPing(rfbClientPtr cl); +extern Bool rfbSendFramebufferUpdate(rfbClientPtr cl, sraRegionPtr updateRegion); +extern Bool rfbSendRectEncodingRaw(rfbClientPtr cl, int x,int y,int w,int h); +extern Bool rfbSendUpdateBuf(rfbClientPtr cl); +extern void rfbSendServerCutText(rfbScreenInfoPtr rfbScreen,char *str, int len); +extern Bool rfbSendCopyRegion(rfbClientPtr cl,sraRegionPtr reg,int dx,int dy); +extern Bool rfbSendLastRectMarker(rfbClientPtr cl); +extern Bool rfbSendSetColourMapEntries(rfbClientPtr cl, int firstColour, int nColours); +extern void rfbSendBell(rfbScreenInfoPtr rfbScreen); + +void rfbGotXCutText(rfbScreenInfoPtr rfbScreen, char *str, int len); + +#ifdef BACKCHANNEL +extern void rfbSendBackChannel(rfbScreenInfoPtr s,char* message,int len); +#endif + +/* translate.c */ + +extern Bool rfbEconomicTranslate; + +extern void rfbTranslateNone(char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height); +extern Bool rfbSetTranslateFunction(rfbClientPtr cl); +extern Bool rfbSetClientColourMap(rfbClientPtr cl, int firstColour, int nColours); +extern void rfbSetClientColourMaps(rfbScreenInfoPtr rfbScreen, int firstColour, int nColours); + +/* httpd.c */ + +extern int httpPort; +extern char *httpDir; + +extern void httpInitSockets(rfbScreenInfoPtr rfbScreen); +extern void httpCheckFds(rfbScreenInfoPtr rfbScreen); + + + +/* auth.c */ + +extern void rfbAuthNewClient(rfbClientPtr cl); +extern void rfbAuthProcessClientMessage(rfbClientPtr cl); + + +/* rre.c */ + +extern Bool rfbSendRectEncodingRRE(rfbClientPtr cl, int x,int y,int w,int h); + + +/* corre.c */ + +extern Bool rfbSendRectEncodingCoRRE(rfbClientPtr cl, int x,int y,int w,int h); + + +/* hextile.c */ + +extern Bool rfbSendRectEncodingHextile(rfbClientPtr cl, int x, int y, int w, + int h); + + +/* zlib.c */ + +/* Minimum zlib rectangle size in bytes. Anything smaller will + * not compress well due to overhead. + */ +#define VNC_ENCODE_ZLIB_MIN_COMP_SIZE (17) + +/* Set maximum zlib rectangle size in pixels. Always allow at least + * two scan lines. + */ +#define ZLIB_MAX_RECT_SIZE (128*256) +#define ZLIB_MAX_SIZE(min) ((( min * 2 ) > ZLIB_MAX_RECT_SIZE ) ? \ + ( min * 2 ) : ZLIB_MAX_RECT_SIZE ) + +extern Bool rfbSendRectEncodingZlib(rfbClientPtr cl, int x, int y, int w, + int h); + + +/* tight.c */ + +#define TIGHT_DEFAULT_COMPRESSION 6 + +extern Bool rfbTightDisableGradient; + +extern int rfbNumCodedRectsTight(rfbClientPtr cl, int x,int y,int w,int h); +extern Bool rfbSendRectEncodingTight(rfbClientPtr cl, int x,int y,int w,int h); + + +/* cursor.c */ + +typedef struct rfbCursor { + unsigned char *source; /* points to bits */ + unsigned char *mask; /* points to bits */ + unsigned short width, height, xhot, yhot; /* metrics */ + unsigned short foreRed, foreGreen, foreBlue; /* device-independent colour */ + unsigned short backRed, backGreen, backBlue; /* device-independent colour */ + unsigned char *richSource; /* source bytes for a rich cursor */ +} rfbCursor, *rfbCursorPtr; + +extern Bool rfbSendCursorShape(rfbClientPtr cl/*, rfbScreenInfoPtr pScreen*/); +extern Bool rfbSendSoftCursor(rfbClientPtr cl, Bool cursorWasChanged); +extern unsigned char rfbReverseByte[0x100]; +extern void rfbConvertLSBCursorBitmapOrMask(int width,int height,unsigned char* bitmap); +extern rfbCursorPtr rfbMakeXCursor(int width,int height,char* cursorString,char* maskString); +extern char* rfbMakeMaskForXCursor(int width,int height,char* cursorString); +extern void MakeXCursorFromRichCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor); +extern void MakeRichCursorFromXCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor); +extern void MakeSoftCursor(rfbClientPtr cl,rfbCursorPtr cursor); +extern void rfbFreeCursor(rfbCursorPtr cursor); +extern void rfbDrawCursor(rfbScreenInfoPtr rfbScreen); +extern void rfbUndrawCursor(rfbScreenInfoPtr rfbScreen); +extern void rfbSetCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr c,Bool freeOld); + +/* cursor handling for the pointer */ +extern void defaultPtrAddEvent(int buttonMask,int x,int y,rfbClientPtr cl); + +/* stats.c */ + +extern void rfbResetStats(rfbClientPtr cl); +extern void rfbPrintStats(rfbClientPtr cl); + +/* font.c */ + +typedef struct rfbFontData { + unsigned char* data; + /* + metaData is a 256*5 array: + for each character + (offset,width,height,x,y) + */ + int* metaData; +} rfbFontData,* rfbFontDataPtr; + +int rfbDrawChar(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,int x,int y,unsigned char c,Pixel colour); +void rfbDrawString(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,int x,int y,const char* string,Pixel colour); +/* if colour==backColour, background is transparent */ +int rfbDrawCharWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,int x,int y,unsigned char c,int x1,int y1,int x2,int y2,Pixel colour,Pixel backColour); +void rfbDrawStringWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,int x,int y,const char* string,int x1,int y1,int x2,int y2,Pixel colour,Pixel backColour); +int rfbWidthOfString(rfbFontDataPtr font,const char* string); +int rfbWidthOfChar(rfbFontDataPtr font,unsigned char c); +void rfbFontBBox(rfbFontDataPtr font,unsigned char c,int* x1,int* y1,int* x2,int* y2); +/* this returns the smallest box enclosing any character of font. */ +void rfbWholeFontBBox(rfbFontDataPtr font,int *x1, int *y1, int *x2, int *y2); + +/* dynamically load a linux console font (4096 bytes, 256 glyphs a 8x16 */ +rfbFontDataPtr rfbLoadConsoleFont(char *filename); +/* free a dynamically loaded font */ +void rfbFreeFont(rfbFontDataPtr font); + +/* draw.c */ + +/* You have to call rfbUndrawCursor before using these functions */ +void rfbFillRect(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,Pixel col); +void rfbDrawPixel(rfbScreenInfoPtr s,int x,int y,Pixel col); +void rfbDrawLine(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,Pixel col); + +/* selbox.c */ + +/* this opens a modal select box. list is an array of strings, the end marked + with a NULL. + It returns the index in the list or -1 if cancelled or something else + wasn't kosher. */ +typedef void (*SelectionChangedHookPtr)(int _index); +extern int rfbSelectBox(rfbScreenInfoPtr rfbScreen, + rfbFontDataPtr font, char** list, + int x1, int y1, int x2, int y2, + Pixel foreColour, Pixel backColour, + int border,SelectionChangedHookPtr selChangedHook); + +/* cargs.c */ + +extern void rfbUsage(void); +extern void rfbPurgeArguments(int* argc,int* position,int count,char *argv[]); +extern void rfbProcessArguments(rfbScreenInfoPtr rfbScreen,int* argc, char *argv[]); +extern void rfbProcessSizeArguments(int* width,int* height,int* bpp,int* argc, char *argv[]); + +/* main.c */ + +extern void rfbLogEnable(int enabled); +extern void rfbLog(const char *format, ...); +extern void rfbLogPerror(const char *str); + +void rfbScheduleCopyRect(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2,int dx,int dy); +void rfbScheduleCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy); + +void rfbDoCopyRect(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2,int dx,int dy); +void rfbDoCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy); + +void rfbMarkRectAsModified(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2); +void rfbMarkRegionAsModified(rfbScreenInfoPtr rfbScreen,sraRegionPtr modRegion); +void doNothingWithClient(rfbClientPtr cl); +enum rfbNewClientAction defaultNewClientHook(rfbClientPtr cl); + +/* to check against plain passwords */ +Bool rfbCheckPasswordByList(rfbClientPtr cl,const char* response,int len); + +/* functions to make a vnc server */ +extern rfbScreenInfoPtr rfbGetScreen(int* argc,char** argv, + int width,int height,int bitsPerSample,int samplesPerPixel, + int bytesPerPixel); +extern void rfbInitServer(rfbScreenInfoPtr rfbScreen); +extern void rfbScreenCleanup(rfbScreenInfoPtr screenInfo); + +/* functions to accept/refuse a client that has been put on hold + by a NewClientHookPtr function. Must not be called in other + situations. */ +extern void rfbStartOnHoldClient(rfbClientPtr cl); +extern void rfbRefuseOnHoldClient(rfbClientPtr cl); + +/* call one of these two functions to service the vnc clients. + usec are the microseconds the select on the fds waits. + if you are using the event loop, set this to some value > 0, so the + server doesn't get a high load just by listening. */ + +extern void rfbRunEventLoop(rfbScreenInfoPtr screenInfo, long usec, Bool runInBackground); +extern void rfbProcessEvents(rfbScreenInfoPtr screenInfo,long usec); + +#endif + +#if(defined __cplusplus) +} +#endif diff --git a/krfb/libvncserver/rfbproto.h b/krfb/libvncserver/rfbproto.h new file mode 100644 index 00000000..9f9f6bc9 --- /dev/null +++ b/krfb/libvncserver/rfbproto.h @@ -0,0 +1,848 @@ +#ifndef RFBPROTO_H +#define RFBPROTO_H + +/* + * Copyright (C) 2000, 2001 Const Kaplinsky. All Rights Reserved. + * Copyright (C) 2000 Tridia Corporation. All Rights Reserved. + * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +/* + * rfbproto.h - header file for the RFB protocol version 3.3 + * + * Uses types CARD<n> for an n-bit unsigned integer, INT<n> for an n-bit signed + * integer (for n = 8, 16 and 32). + * + * All multiple byte integers are in big endian (network) order (most + * significant byte first). Unless noted otherwise there is no special + * alignment of protocol structures. + * + * + * Once the initial handshaking is done, all messages start with a type byte, + * (usually) followed by message-specific data. The order of definitions in + * this file is as follows: + * + * (1) Structures used in several types of message. + * (2) Structures used in the initial handshaking. + * (3) Message types. + * (4) Encoding types. + * (5) For each message type, the form of the data following the type byte. + * Sometimes this is defined by a single structure but the more complex + * messages have to be explained by comments. + */ + + +/***************************************************************************** + * + * Structures used in several messages + * + *****************************************************************************/ + +/*----------------------------------------------------------------------------- + * Structure used to specify a rectangle. This structure is a multiple of 4 + * bytes so that it can be interspersed with 32-bit pixel data without + * affecting alignment. + */ + +typedef struct { + CARD16 x; + CARD16 y; + CARD16 w; + CARD16 h; +} rfbRectangle; + +#define sz_rfbRectangle 8 + + +/*----------------------------------------------------------------------------- + * Structure used to specify pixel format. + */ + +typedef struct { + + CARD8 bitsPerPixel; /* 8,16,32 only */ + + CARD8 depth; /* 8 to 32 */ + + CARD8 bigEndian; /* True if multi-byte pixels are interpreted + as big endian, or if single-bit-per-pixel + has most significant bit of the byte + corresponding to first (leftmost) pixel. Of + course this is meaningless for 8 bits/pix */ + + CARD8 trueColour; /* If false then we need a "colour map" to + convert pixels to RGB. If true, xxxMax and + xxxShift specify bits used for red, green + and blue */ + + /* the following fields are only meaningful if trueColour is true */ + + CARD16 redMax; /* maximum red value (= 2^n - 1 where n is the + number of bits used for red). Note this + value is always in big endian order. */ + + CARD16 greenMax; /* similar for green */ + + CARD16 blueMax; /* and blue */ + + CARD8 redShift; /* number of shifts needed to get the red + value in a pixel to the least significant + bit. To find the red value from a given + pixel, do the following: + 1) Swap pixel value according to bigEndian + (e.g. if bigEndian is false and host byte + order is big endian, then swap). + 2) Shift right by redShift. + 3) AND with redMax (in host byte order). + 4) You now have the red value between 0 and + redMax. */ + + CARD8 greenShift; /* similar for green */ + + CARD8 blueShift; /* and blue */ + + CARD8 pad1; + CARD16 pad2; + +} rfbPixelFormat; + +#define sz_rfbPixelFormat 16 + + + +/***************************************************************************** + * + * Initial handshaking messages + * + *****************************************************************************/ + +/*----------------------------------------------------------------------------- + * Protocol Version + * + * The server always sends 12 bytes to start which identifies the latest RFB + * protocol version number which it supports. These bytes are interpreted + * as a string of 12 ASCII characters in the format "RFB xxx.yyy\n" where + * xxx and yyy are the major and minor version numbers (for version 3.3 + * this is "RFB 003.003\n"). + * + * The client then replies with a similar 12-byte message giving the version + * number of the protocol which should actually be used (which may be different + * to that quoted by the server). + * + * It is intended that both clients and servers may provide some level of + * backwards compatibility by this mechanism. Servers in particular should + * attempt to provide backwards compatibility, and even forwards compatibility + * to some extent. For example if a client demands version 3.1 of the + * protocol, a 3.0 server can probably assume that by ignoring requests for + * encoding types it doesn't understand, everything will still work OK. This + * will probably not be the case for changes in the major version number. + * + * The format string below can be used in sprintf or sscanf to generate or + * decode the version string respectively. + */ + +#define rfbProtocolVersionFormat "RFB %03d.%03d\n" +#define rfbProtocolMajorVersion 3 +#define rfbProtocolMinorVersion 3 + +typedef char rfbProtocolVersionMsg[13]; /* allow extra byte for null */ + +#define sz_rfbProtocolVersionMsg 12 + + +/*----------------------------------------------------------------------------- + * Authentication + * + * Once the protocol version has been decided, the server then sends a 32-bit + * word indicating whether any authentication is needed on the connection. + * The value of this word determines the authentication scheme in use. For + * version 3.0 of the protocol this may have one of the following values: + */ + +#define rfbConnFailed 0 +#define rfbNoAuth 1 +#define rfbVncAuth 2 + +/* + * rfbConnFailed: For some reason the connection failed (e.g. the server + * cannot support the desired protocol version). This is + * followed by a string describing the reason (where a + * string is specified as a 32-bit length followed by that + * many ASCII characters). + * + * rfbNoAuth: No authentication is needed. + * + * rfbVncAuth: The VNC authentication scheme is to be used. A 16-byte + * challenge follows, which the client encrypts as + * appropriate using the password and sends the resulting + * 16-byte response. If the response is correct, the + * server sends the 32-bit word rfbVncAuthOK. If a simple + * failure happens, the server sends rfbVncAuthFailed and + * closes the connection. If the server decides that too + * many failures have occurred, it sends rfbVncAuthTooMany + * and closes the connection. In the latter case, the + * server should not allow an immediate reconnection by + * the client. + */ + +#define rfbVncAuthOK 0 +#define rfbVncAuthFailed 1 +#define rfbVncAuthTooMany 2 + + +/*----------------------------------------------------------------------------- + * Client Initialisation Message + * + * Once the client and server are sure that they're happy to talk to one + * another, the client sends an initialisation message. At present this + * message only consists of a boolean indicating whether the server should try + * to share the desktop by leaving other clients connected, or give exclusive + * access to this client by disconnecting all other clients. + */ + +typedef struct { + CARD8 shared; +} rfbClientInitMsg; + +#define sz_rfbClientInitMsg 1 + + +/*----------------------------------------------------------------------------- + * Server Initialisation Message + * + * After the client initialisation message, the server sends one of its own. + * This tells the client the width and height of the server's framebuffer, + * its pixel format and the name associated with the desktop. + */ + +typedef struct { + CARD16 framebufferWidth; + CARD16 framebufferHeight; + rfbPixelFormat format; /* the server's preferred pixel format */ + CARD32 nameLength; + /* followed by char name[nameLength] */ +} rfbServerInitMsg; + +#define sz_rfbServerInitMsg (8 + sz_rfbPixelFormat) + + +/* + * Following the server initialisation message it's up to the client to send + * whichever protocol messages it wants. Typically it will send a + * SetPixelFormat message and a SetEncodings message, followed by a + * FramebufferUpdateRequest. From then on the server will send + * FramebufferUpdate messages in response to the client's + * FramebufferUpdateRequest messages. The client should send + * FramebufferUpdateRequest messages with incremental set to true when it has + * finished processing one FramebufferUpdate and is ready to process another. + * With a fast client, the rate at which FramebufferUpdateRequests are sent + * should be regulated to avoid hogging the network. + */ + + + +/***************************************************************************** + * + * Message types + * + *****************************************************************************/ + +/* server -> client */ + +#define rfbFramebufferUpdate 0 +#define rfbSetColourMapEntries 1 +#define rfbBell 2 +#define rfbServerCutText 3 +#ifdef BACKCHANNEL +#define rfbBackChannel 15 +#endif + +/* client -> server */ + +#define rfbSetPixelFormat 0 +#define rfbFixColourMapEntries 1 /* not currently supported */ +#define rfbSetEncodings 2 +#define rfbFramebufferUpdateRequest 3 +#define rfbKeyEvent 4 +#define rfbPointerEvent 5 +#define rfbClientCutText 6 + + + + +/***************************************************************************** + * + * Encoding types + * + *****************************************************************************/ + +#define rfbEncodingRaw 0 +#define rfbEncodingCopyRect 1 +#define rfbEncodingRRE 2 +#define rfbEncodingCoRRE 4 +#define rfbEncodingHextile 5 +#define rfbEncodingZlib 6 +#define rfbEncodingTight 7 +#define rfbEncodingZlibHex 8 +#ifdef BACKCHANNEL +#define rfbEncodingBackChannel 15 +#endif + +/* + * Special encoding numbers: + * 0xFFFFFF00 .. 0xFFFFFF0F -- encoding-specific compression levels; + * 0xFFFFFF10 .. 0xFFFFFF1F -- mouse cursor shape data; + * 0xFFFFFF20 .. 0xFFFFFF2F -- various protocol extensions; + * 0xFFFFFF30 .. 0xFFFFFFDF -- not allocated yet; + * 0xFFFFFFE0 .. 0xFFFFFFEF -- quality level for JPEG compressor; + * 0xFFFFFFF0 .. 0xFFFFFFFF -- cross-encoding compression levels. + */ + +#define rfbEncodingCompressLevel0 0xFFFFFF00 +#define rfbEncodingCompressLevel1 0xFFFFFF01 +#define rfbEncodingCompressLevel2 0xFFFFFF02 +#define rfbEncodingCompressLevel3 0xFFFFFF03 +#define rfbEncodingCompressLevel4 0xFFFFFF04 +#define rfbEncodingCompressLevel5 0xFFFFFF05 +#define rfbEncodingCompressLevel6 0xFFFFFF06 +#define rfbEncodingCompressLevel7 0xFFFFFF07 +#define rfbEncodingCompressLevel8 0xFFFFFF08 +#define rfbEncodingCompressLevel9 0xFFFFFF09 + +#define rfbEncodingXCursor 0xFFFFFF10 +#define rfbEncodingRichCursor 0xFFFFFF11 +#define rfbEncodingSoftCursor 0xFFFFFF12 + +#define rfbEncodingLastRect 0xFFFFFF20 +#define rfbEncodingBackground 0xFFFFFF25 + +#define rfbEncodingQualityLevel0 0xFFFFFFE0 +#define rfbEncodingQualityLevel1 0xFFFFFFE1 +#define rfbEncodingQualityLevel2 0xFFFFFFE2 +#define rfbEncodingQualityLevel3 0xFFFFFFE3 +#define rfbEncodingQualityLevel4 0xFFFFFFE4 +#define rfbEncodingQualityLevel5 0xFFFFFFE5 +#define rfbEncodingQualityLevel6 0xFFFFFFE6 +#define rfbEncodingQualityLevel7 0xFFFFFFE7 +#define rfbEncodingQualityLevel8 0xFFFFFFE8 +#define rfbEncodingQualityLevel9 0xFFFFFFE9 + + +/***************************************************************************** + * + * Server -> client message definitions + * + *****************************************************************************/ + + +/*----------------------------------------------------------------------------- + * FramebufferUpdate - a block of rectangles to be copied to the framebuffer. + * + * This message consists of a header giving the number of rectangles of pixel + * data followed by the rectangles themselves. The header is padded so that + * together with the type byte it is an exact multiple of 4 bytes (to help + * with alignment of 32-bit pixels): + */ + +typedef struct { + CARD8 type; /* always rfbFramebufferUpdate */ + CARD8 pad; + CARD16 nRects; + /* followed by nRects rectangles */ +} rfbFramebufferUpdateMsg; + +#define sz_rfbFramebufferUpdateMsg 4 + +/* + * Each rectangle of pixel data consists of a header describing the position + * and size of the rectangle and a type word describing the encoding of the + * pixel data, followed finally by the pixel data. Note that if the client has + * not sent a SetEncodings message then it will only receive raw pixel data. + * Also note again that this structure is a multiple of 4 bytes. + */ + +typedef struct { + rfbRectangle r; + CARD32 encoding; /* one of the encoding types rfbEncoding... */ +} rfbFramebufferUpdateRectHeader; + +#define sz_rfbFramebufferUpdateRectHeader (sz_rfbRectangle + 4) + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * Raw Encoding. Pixels are sent in top-to-bottom scanline order, + * left-to-right within a scanline with no padding in between. + */ + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * CopyRect Encoding. The pixels are specified simply by the x and y position + * of the source rectangle. + */ + +typedef struct { + CARD16 srcX; + CARD16 srcY; +} rfbCopyRect; + +#define sz_rfbCopyRect 4 + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * RRE - Rise-and-Run-length Encoding. We have an rfbRREHeader structure + * giving the number of subrectangles following. Finally the data follows in + * the form [<bgpixel><subrect><subrect>...] where each <subrect> is + * [<pixel><rfbRectangle>]. + */ + +typedef struct { + CARD32 nSubrects; +} rfbRREHeader; + +#define sz_rfbRREHeader 4 + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * CoRRE - Compact RRE Encoding. We have an rfbRREHeader structure giving + * the number of subrectangles following. Finally the data follows in the form + * [<bgpixel><subrect><subrect>...] where each <subrect> is + * [<pixel><rfbCoRRERectangle>]. This means that + * the whole rectangle must be at most 255x255 pixels. + */ + +typedef struct { + CARD8 x; + CARD8 y; + CARD8 w; + CARD8 h; +} rfbCoRRERectangle; + +#define sz_rfbCoRRERectangle 4 + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * Hextile Encoding. The rectangle is divided up into "tiles" of 16x16 pixels, + * starting at the top left going in left-to-right, top-to-bottom order. If + * the width of the rectangle is not an exact multiple of 16 then the width of + * the last tile in each row will be correspondingly smaller. Similarly if the + * height is not an exact multiple of 16 then the height of each tile in the + * final row will also be smaller. Each tile begins with a "subencoding" type + * byte, which is a mask made up of a number of bits. If the Raw bit is set + * then the other bits are irrelevant; w*h pixel values follow (where w and h + * are the width and height of the tile). Otherwise the tile is encoded in a + * similar way to RRE, except that the position and size of each subrectangle + * can be specified in just two bytes. The other bits in the mask are as + * follows: + * + * BackgroundSpecified - if set, a pixel value follows which specifies + * the background colour for this tile. The first non-raw tile in a + * rectangle must have this bit set. If this bit isn't set then the + * background is the same as the last tile. + * + * ForegroundSpecified - if set, a pixel value follows which specifies + * the foreground colour to be used for all subrectangles in this tile. + * If this bit is set then the SubrectsColoured bit must be zero. + * + * AnySubrects - if set, a single byte follows giving the number of + * subrectangles following. If not set, there are no subrectangles (i.e. + * the whole tile is just solid background colour). + * + * SubrectsColoured - if set then each subrectangle is preceded by a pixel + * value giving the colour of that subrectangle. If not set, all + * subrectangles are the same colour, the foreground colour; if the + * ForegroundSpecified bit wasn't set then the foreground is the same as + * the last tile. + * + * The position and size of each subrectangle is specified in two bytes. The + * Pack macros below can be used to generate the two bytes from x, y, w, h, + * and the Extract macros can be used to extract the x, y, w, h values from + * the two bytes. + */ + +#define rfbHextileRaw (1 << 0) +#define rfbHextileBackgroundSpecified (1 << 1) +#define rfbHextileForegroundSpecified (1 << 2) +#define rfbHextileAnySubrects (1 << 3) +#define rfbHextileSubrectsColoured (1 << 4) + +#define rfbHextilePackXY(x,y) (((x) << 4) | (y)) +#define rfbHextilePackWH(w,h) ((((w)-1) << 4) | ((h)-1)) +#define rfbHextileExtractX(byte) ((byte) >> 4) +#define rfbHextileExtractY(byte) ((byte) & 0xf) +#define rfbHextileExtractW(byte) (((byte) >> 4) + 1) +#define rfbHextileExtractH(byte) (((byte) & 0xf) + 1) + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * zlib - zlib compressed Encoding. We have an rfbZlibHeader structure + * giving the number of bytes following. Finally the data follows is + * zlib compressed version of the raw pixel data as negotiated. + */ + +typedef struct { + CARD32 nBytes; +} rfbZlibHeader; + +#define sz_rfbZlibHeader 4 + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * Tight Encoding. FIXME: Add more documentation. + */ + +#define rfbTightExplicitFilter 0x04 +#define rfbTightFill 0x08 +#define rfbTightJpeg 0x09 +#define rfbTightMaxSubencoding 0x09 + +/* Filters to improve compression efficiency */ +#define rfbTightFilterCopy 0x00 +#define rfbTightFilterPalette 0x01 +#define rfbTightFilterGradient 0x02 + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * XCursor encoding. This is a special encoding used to transmit X-style + * cursor shapes from server to clients. Note that for this encoding, + * coordinates in rfbFramebufferUpdateRectHeader structure hold hotspot + * position (r.x, r.y) and cursor size (r.w, r.h). If (w * h != 0), two RGB + * samples are sent after header in the rfbXCursorColors structure. They + * denote foreground and background colors of the cursor. If a client + * supports only black-and-white cursors, it should ignore these colors and + * assume that foreground is black and background is white. Next, two bitmaps + * (1 bits per pixel) follow: first one with actual data (value 0 denotes + * background color, value 1 denotes foreground color), second one with + * transparency data (bits with zero value mean that these pixels are + * transparent). Both bitmaps represent cursor data in a byte stream, from + * left to right, from top to bottom, and each row is byte-aligned. Most + * significant bits correspond to leftmost pixels. The number of bytes in + * each row can be calculated as ((w + 7) / 8). If (w * h == 0), cursor + * should be hidden (or default local cursor should be set by the client). + */ + +typedef struct { + CARD8 foreRed; + CARD8 foreGreen; + CARD8 foreBlue; + CARD8 backRed; + CARD8 backGreen; + CARD8 backBlue; +} rfbXCursorColors; + +#define sz_rfbXCursorColors 6 + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * RichCursor encoding. This is a special encoding used to transmit cursor + * shapes from server to clients. It is similar to the XCursor encoding but + * uses client pixel format instead of two RGB colors to represent cursor + * image. For this encoding, coordinates in rfbFramebufferUpdateRectHeader + * structure hold hotspot position (r.x, r.y) and cursor size (r.w, r.h). + * After header, two pixmaps follow: first one with cursor image in current + * client pixel format (like in raw encoding), second with transparency data + * (1 bit per pixel, exactly the same format as used for transparency bitmap + * in the XCursor encoding). If (w * h == 0), cursor should be hidden (or + * default local cursor should be set by the client). + */ + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + * SoftCursor encoding. This encoding is used to transmit image and position + * of the remote cursor. It has two sub-messages: SetImage is used to upload + * one of 16 images, and Move selects the image and sets the position of the + * cursor. + * Each SoftCursor message starts with a CARD8. If it is in the 0-15 range + * it specifies the number of the cursor image and is followed by the + * rfbSoftCursorMove message. If the given cursor has not been set yet the + * message will be ignored. If the first CARD8 is in the 128-143 range it + * specifies the cursor that will be set in the following + * rfbSoftCursorSetImage message. To hide the cursor send a SetImage + * message with width and height 0 and imageLength 0. + * SetImage transmits the hotspot coordinates in the x/y fields of the + * rfbFramebufferUpdateRectHeader, width and height of the image are in the + * header's width and height fields. + * Move transmits the pointer coordinates in the w/h fields of the + * header, x/y are always 0. + */ + +typedef struct { + CARD8 imageIndex; + CARD8 buttonMask; /* bits 0-7 are buttons 1-8, 0=up, 1=down */ +} rfbSoftCursorMove; + +typedef struct { + CARD8 imageIndex; + CARD8 padding; + CARD16 imageLength; + /* + * Followed by an image of the cursor in the client's image format + * with the following RLE mask compression. It begins with CARD8 that + * specifies the number of mask'ed pixels that will be NOT transmitted. + * Then follows a CARD8 that specified by the number of unmask'd pixels + * that will be transmitted next. Then a CARD8 with the number of mask'd + * pixels and so on. + */ +} rfbSoftCursorSetImage; + +typedef union { + CARD8 type; + rfbSoftCursorMove move; + rfbSoftCursorSetImage setImage; +} rfbSoftCursorMsg; + +#define rfbSoftCursorMaxImages 16 +#define rfbSoftCursorSetIconOffset 128 + + +/*----------------------------------------------------------------------------- + * SetColourMapEntries - these messages are only sent if the pixel + * format uses a "colour map" (i.e. trueColour false) and the client has not + * fixed the entire colour map using FixColourMapEntries. In addition they + * will only start being sent after the client has sent its first + * FramebufferUpdateRequest. So if the client always tells the server to use + * trueColour then it never needs to process this type of message. + */ + +typedef struct { + CARD8 type; /* always rfbSetColourMapEntries */ + CARD8 pad; + CARD16 firstColour; + CARD16 nColours; + + /* Followed by nColours * 3 * CARD16 + r1, g1, b1, r2, g2, b2, r3, g3, b3, ..., rn, bn, gn */ + +} rfbSetColourMapEntriesMsg; + +#define sz_rfbSetColourMapEntriesMsg 6 + + + +/*----------------------------------------------------------------------------- + * Bell - ring a bell on the client if it has one. + */ + +typedef struct { + CARD8 type; /* always rfbBell */ +} rfbBellMsg; + +#define sz_rfbBellMsg 1 + + + +/*----------------------------------------------------------------------------- + * ServerCutText - the server has new text in its cut buffer. + */ + +typedef struct { + CARD8 type; /* always rfbServerCutText */ + CARD8 pad1; + CARD16 pad2; + CARD32 length; + /* followed by char text[length] */ +} rfbServerCutTextMsg; + +#define sz_rfbServerCutTextMsg 8 + +#ifdef BACKCHANNEL +typedef rfbServerCutTextMsg rfbBackChannelMsg; +#define sz_rfbBackChannelMsg 8 +#endif + + +/*----------------------------------------------------------------------------- + * Union of all server->client messages. + */ + +typedef union { + CARD8 type; + rfbFramebufferUpdateMsg fu; + rfbSetColourMapEntriesMsg scme; + rfbBellMsg b; + rfbServerCutTextMsg sct; +} rfbServerToClientMsg; + + + +/***************************************************************************** + * + * Message definitions (client -> server) + * + *****************************************************************************/ + + +/*----------------------------------------------------------------------------- + * SetPixelFormat - tell the RFB server the format in which the client wants + * pixels sent. + */ + +typedef struct { + CARD8 type; /* always rfbSetPixelFormat */ + CARD8 pad1; + CARD16 pad2; + rfbPixelFormat format; +} rfbSetPixelFormatMsg; + +#define sz_rfbSetPixelFormatMsg (sz_rfbPixelFormat + 4) + + +/*----------------------------------------------------------------------------- + * FixColourMapEntries - when the pixel format uses a "colour map", fix + * read-only colour map entries. + * + * ***************** NOT CURRENTLY SUPPORTED ***************** + */ + +typedef struct { + CARD8 type; /* always rfbFixColourMapEntries */ + CARD8 pad; + CARD16 firstColour; + CARD16 nColours; + + /* Followed by nColours * 3 * CARD16 + r1, g1, b1, r2, g2, b2, r3, g3, b3, ..., rn, bn, gn */ + +} rfbFixColourMapEntriesMsg; + +#define sz_rfbFixColourMapEntriesMsg 6 + + +/*----------------------------------------------------------------------------- + * SetEncodings - tell the RFB server which encoding types we accept. Put them + * in order of preference, if we have any. We may always receive raw + * encoding, even if we don't specify it here. + */ + +typedef struct { + CARD8 type; /* always rfbSetEncodings */ + CARD8 pad; + CARD16 nEncodings; + /* followed by nEncodings * CARD32 encoding types */ +} rfbSetEncodingsMsg; + +#define sz_rfbSetEncodingsMsg 4 + + +/*----------------------------------------------------------------------------- + * FramebufferUpdateRequest - request for a framebuffer update. If incremental + * is true then the client just wants the changes since the last update. If + * false then it wants the whole of the specified rectangle. + */ + +typedef struct { + CARD8 type; /* always rfbFramebufferUpdateRequest */ + CARD8 incremental; + CARD16 x; + CARD16 y; + CARD16 w; + CARD16 h; +} rfbFramebufferUpdateRequestMsg; + +#define sz_rfbFramebufferUpdateRequestMsg 10 + + +/*----------------------------------------------------------------------------- + * KeyEvent - key press or release + * + * Keys are specified using the "keysym" values defined by the X Window System. + * For most ordinary keys, the keysym is the same as the corresponding ASCII + * value. Other common keys are: + * + * BackSpace 0xff08 + * Tab 0xff09 + * Return or Enter 0xff0d + * Escape 0xff1b + * Insert 0xff63 + * Delete 0xffff + * Home 0xff50 + * End 0xff57 + * Page Up 0xff55 + * Page Down 0xff56 + * Left 0xff51 + * Up 0xff52 + * Right 0xff53 + * Down 0xff54 + * F1 0xffbe + * F2 0xffbf + * ... ... + * F12 0xffc9 + * Shift 0xffe1 + * Control 0xffe3 + * Meta 0xffe7 + * Alt 0xffe9 + */ + +typedef struct { + CARD8 type; /* always rfbKeyEvent */ + CARD8 down; /* true if down (press), false if up */ + CARD16 pad; + CARD32 key; /* key is specified as an X keysym */ +} rfbKeyEventMsg; + +#define sz_rfbKeyEventMsg 8 + + +/*----------------------------------------------------------------------------- + * PointerEvent - mouse/pen move and/or button press. + */ + +typedef struct { + CARD8 type; /* always rfbPointerEvent */ + CARD8 buttonMask; /* bits 0-7 are buttons 1-8, 0=up, 1=down */ + CARD16 x; + CARD16 y; +} rfbPointerEventMsg; + +#define rfbButton1Mask 1 +#define rfbButton2Mask 2 +#define rfbButton3Mask 4 + +#define sz_rfbPointerEventMsg 6 + + + +/*----------------------------------------------------------------------------- + * ClientCutText - the client has new text in its cut buffer. + */ + +typedef struct { + CARD8 type; /* always rfbClientCutText */ + CARD8 pad1; + CARD16 pad2; + CARD32 length; + /* followed by char text[length] */ +} rfbClientCutTextMsg; + +#define sz_rfbClientCutTextMsg 8 + + + +/*----------------------------------------------------------------------------- + * Union of all client->server messages. + */ + +typedef union { + CARD8 type; + rfbSetPixelFormatMsg spf; + rfbFixColourMapEntriesMsg fcme; + rfbSetEncodingsMsg se; + rfbFramebufferUpdateRequestMsg fur; + rfbKeyEventMsg ke; + rfbPointerEventMsg pe; + rfbClientCutTextMsg cct; +} rfbClientToServerMsg; + +#endif diff --git a/krfb/libvncserver/rfbserver.c b/krfb/libvncserver/rfbserver.c new file mode 100644 index 00000000..78d40798 --- /dev/null +++ b/krfb/libvncserver/rfbserver.c @@ -0,0 +1,1590 @@ +/* + * rfbserver.c - deal with server-side of the RFB protocol. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include "rfb.h" +#include "sraRegion.h" +#ifdef WIN32 +#define write(sock,buf,len) send(sock,buf,len,0) +#else +#include <unistd.h> +#include <pwd.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#endif +#include <sys/types.h> +#ifdef __osf__ +typedef int socklen_t; +#endif + +#ifdef CORBA +#include <vncserverctrl.h> +#endif + +#ifdef DEBUGPROTO +#undef DEBUGPROTO +#define DEBUGPROTO(x) x +#else +#define DEBUGPROTO(x) +#endif + +rfbClientPtr pointerClient = NULL; /* Mutex for pointer events */ + +static void rfbProcessClientProtocolVersion(rfbClientPtr cl); +static void rfbProcessClientNormalMessage(rfbClientPtr cl); +static void rfbProcessClientInitMessage(rfbClientPtr cl); + +#ifdef HAVE_PTHREADS +void rfbIncrClientRef(rfbClientPtr cl) +{ + LOCK(cl->refCountMutex); + cl->refCount++; + UNLOCK(cl->refCountMutex); +} + +void rfbDecrClientRef(rfbClientPtr cl) +{ + LOCK(cl->refCountMutex); + cl->refCount--; + if(cl->refCount<=0) /* just to be sure also < 0 */ + TSIGNAL(cl->deleteCond); + UNLOCK(cl->refCountMutex); +} +#else +void rfbIncrClientRef(rfbClientPtr cl) +{ +} + +void rfbDecrClientRef(rfbClientPtr cl) +{ +} +#endif + +MUTEX(rfbClientListMutex); + +struct rfbClientIterator { + rfbClientPtr next; + rfbScreenInfoPtr screen; +}; + +void +rfbClientListInit(rfbScreenInfoPtr rfbScreen) +{ + rfbScreen->rfbClientHead = NULL; + INIT_MUTEX(rfbClientListMutex); +} + +rfbClientIteratorPtr +rfbGetClientIterator(rfbScreenInfoPtr rfbScreen) +{ + rfbClientIteratorPtr i = + (rfbClientIteratorPtr)malloc(sizeof(struct rfbClientIterator)); + i->next = 0; + i->screen = rfbScreen; + return i; +} + +rfbClientPtr +rfbClientIteratorNext(rfbClientIteratorPtr i) +{ + if(i->next == 0) { + LOCK(rfbClientListMutex); + i->next = i->screen->rfbClientHead; + UNLOCK(rfbClientListMutex); + } else { + IF_PTHREADS(rfbClientPtr cl = i->next); + i->next = i->next->next; + IF_PTHREADS(rfbDecrClientRef(cl)); + } + +#ifdef HAVE_PTHREADS + while(i->next && i->next->sock<0) + i->next = i->next->next; + if(i->next) + rfbIncrClientRef(i->next); +#endif + + return i->next; +} + +void +rfbReleaseClientIterator(rfbClientIteratorPtr iterator) +{ + IF_PTHREADS(if(iterator->next) rfbDecrClientRef(iterator->next)); +} + + +/* + * rfbNewClientConnection is called from sockets.c when a new connection + * comes in. + */ + +void +rfbNewClientConnection(rfbScreen,sock) + rfbScreenInfoPtr rfbScreen; + int sock; +{ + rfbClientPtr cl; + + cl = rfbNewClient(rfbScreen,sock); +#ifdef CORBA + if(cl!=NULL) + newConnection(cl, (KEYBOARD_DEVICE|POINTER_DEVICE),1,1,1); +#endif +} + + +/* + * rfbReverseConnection is called by the CORBA stuff to make an outward + * connection to a "listening" RFB client. + */ + +rfbClientPtr +rfbReverseConnection(rfbScreen,host, port) + rfbScreenInfoPtr rfbScreen; + char *host; + int port; +{ + int sock; + rfbClientPtr cl; + + if ((sock = rfbConnect(rfbScreen, host, port)) < 0) + return (rfbClientPtr)NULL; + + cl = rfbNewClient(rfbScreen, sock); + + if (cl) { + cl->reverseConnection = TRUE; + } + + return cl; +} + + +/* + * rfbNewClient is called when a new connection has been made by whatever + * means. + */ + +static rfbClientPtr +rfbNewTCPOrUDPClient(rfbScreen,sock,isUDP) + rfbScreenInfoPtr rfbScreen; + int sock; + Bool isUDP; +{ + rfbProtocolVersionMsg pv; + rfbClientIteratorPtr iterator; + rfbClientPtr cl,cl_; + struct sockaddr_in addr; + size_t addrlen = sizeof(struct sockaddr_in); + int i; + + cl = (rfbClientPtr)calloc(sizeof(rfbClientRec),1); + + cl->screen = rfbScreen; + cl->sock = sock; + rfbResetStats(cl); + + if(isUDP) { + rfbLog(" accepted UDP client\n"); + } else { + getpeername(sock, (struct sockaddr *)&addr, &addrlen); + cl->host = strdup(inet_ntoa(addr.sin_addr)); + + rfbLog(" other clients:\n"); + iterator = rfbGetClientIterator(rfbScreen); + while ((cl_ = rfbClientIteratorNext(iterator)) != NULL) { + rfbLog(" %s\n",cl_->host); + } + rfbReleaseClientIterator(iterator); + + FD_SET(sock,&(rfbScreen->allFds)); + rfbScreen->maxFd = max(sock,rfbScreen->maxFd); + + INIT_MUTEX(cl->outputMutex); + INIT_MUTEX(cl->refCountMutex); + INIT_COND(cl->deleteCond); + + cl->state = RFB_PROTOCOL_VERSION; + + cl->reverseConnection = FALSE; + cl->readyForSetColourMapEntries = FALSE; + cl->useCopyRect = FALSE; + cl->preferredEncoding = rfbEncodingRaw; + cl->correMaxWidth = 48; + cl->correMaxHeight = 48; + + cl->copyRegion = sraRgnCreate(); + cl->copyDX = 0; + cl->copyDY = 0; + + cl->modifiedRegion = + sraRgnCreateRect(0,0,rfbScreen->width,rfbScreen->height); + + INIT_MUTEX(cl->updateMutex); + INIT_COND(cl->updateCond); + + cl->requestedRegion = sraRgnCreate(); + + cl->format = cl->screen->rfbServerFormat; + cl->translateFn = rfbTranslateNone; + cl->translateLookupTable = NULL; + + LOCK(rfbClientListMutex); + + IF_PTHREADS(cl->refCount = 0); + cl->next = rfbScreen->rfbClientHead; + cl->prev = NULL; + if (rfbScreen->rfbClientHead) + rfbScreen->rfbClientHead->prev = cl; + + rfbScreen->rfbClientHead = cl; + UNLOCK(rfbClientListMutex); + + cl->tightCompressLevel = TIGHT_DEFAULT_COMPRESSION; + cl->tightQualityLevel = -1; + for (i = 0; i < 4; i++) + cl->zsActive[i] = FALSE; + + cl->enableCursorShapeUpdates = FALSE; + cl->useRichCursorEncoding = FALSE; + cl->enableLastRectEncoding = FALSE; + cl->disableBackground = FALSE; + + cl->compStreamInited = FALSE; + cl->compStream.total_in = 0; + cl->compStream.total_out = 0; + cl->compStream.zalloc = Z_NULL; + cl->compStream.zfree = Z_NULL; + cl->compStream.opaque = Z_NULL; + + cl->zlibCompressLevel = 5; + + sprintf(pv,rfbProtocolVersionFormat,rfbProtocolMajorVersion, + rfbProtocolMinorVersion); + + if (WriteExact(cl, pv, sz_rfbProtocolVersionMsg) < 0) { + rfbLogPerror("rfbNewClient: write"); + rfbCloseClient(cl); + /* TODO: memory leak here (cl is never freed) + * can rfbClientConnectionGone called at this time? + */ + return NULL; + } + } + + cl->clientData = NULL; + cl->clientGoneHook = doNothingWithClient; + cl->negotiationFinishedHook = doNothingWithClient; + switch (cl->screen->newClientHook(cl)) { + case RFB_CLIENT_ON_HOLD: + cl->onHold = TRUE; + break; + case RFB_CLIENT_ACCEPT: + cl->onHold = FALSE; + break; + case RFB_CLIENT_REFUSE: + rfbCloseClient(cl); + rfbClientConnectionGone(cl); + cl = NULL; + break; + } + return cl; +} + +rfbClientPtr +rfbNewClient(rfbScreen,sock) + rfbScreenInfoPtr rfbScreen; + int sock; +{ + return(rfbNewTCPOrUDPClient(rfbScreen,sock,FALSE)); +} + +rfbClientPtr +rfbNewUDPClient(rfbScreen) + rfbScreenInfoPtr rfbScreen; +{ + return((rfbScreen->udpClient= + rfbNewTCPOrUDPClient(rfbScreen,rfbScreen->udpSock,TRUE))); +} + +/* + * rfbClientConnectionGone is called from sockets.c just after a connection + * has gone away. + */ + +void +rfbClientConnectionGone(cl) + rfbClientPtr cl; +{ + int i; + + LOCK(rfbClientListMutex); + + if (cl->prev) + cl->prev->next = cl->next; + else + cl->screen->rfbClientHead = cl->next; + if (cl->next) + cl->next->prev = cl->prev; + +#ifdef HAVE_PTHREADS + LOCK(cl->refCountMutex); + if(cl->refCount) { + UNLOCK(cl->refCountMutex); + WAIT(cl->deleteCond,cl->refCountMutex); + } else { + UNLOCK(cl->refCountMutex); + } +#endif + + if(cl->sock>=0) + FD_CLR(cl->sock,&(cl->screen->allFds)); + + cl->clientGoneHook(cl); + + rfbLog("Client %s gone\n",cl->host); + free(cl->host); + + /* Release the compression state structures if any. */ + if ( cl->compStreamInited ) { + deflateEnd( &(cl->compStream) ); + } + + for (i = 0; i < 4; i++) { + if (cl->zsActive[i]) + deflateEnd(&cl->zsStruct[i]); + } + + if (pointerClient == cl) + pointerClient = NULL; + + sraRgnDestroy(cl->modifiedRegion); + + UNLOCK(rfbClientListMutex); + + if (cl->translateLookupTable) free(cl->translateLookupTable); + + TINI_COND(cl->updateCond); + TINI_MUTEX(cl->updateMutex); + + LOCK(cl->outputMutex); + TINI_MUTEX(cl->outputMutex); + +#ifdef CORBA + destroyConnection(cl); +#endif + + rfbPrintStats(cl); + + free(cl); +} + + +/* + * rfbProcessClientMessage is called when there is data to read from a client. + */ + +void +rfbProcessClientMessage(cl) + rfbClientPtr cl; +{ + switch (cl->state) { + case RFB_PROTOCOL_VERSION: + rfbProcessClientProtocolVersion(cl); + return; + case RFB_AUTHENTICATION: + rfbAuthProcessClientMessage(cl); + return; + case RFB_INITIALISATION: + rfbProcessClientInitMessage(cl); + return; + default: + rfbProcessClientNormalMessage(cl); + return; + } +} + + +/* + * rfbProcessClientProtocolVersion is called when the client sends its + * protocol version. + */ + +static void +rfbProcessClientProtocolVersion(cl) + rfbClientPtr cl; +{ + rfbProtocolVersionMsg pv; + int n, major_, minor_; + char failureReason[256]; + + if ((n = ReadExact(cl, pv, sz_rfbProtocolVersionMsg)) <= 0) { + if (n == 0) + rfbLog("rfbProcessClientProtocolVersion: client gone\n"); + else + rfbLogPerror("rfbProcessClientProtocolVersion: read"); + rfbCloseClient(cl); + return; + } + + pv[sz_rfbProtocolVersionMsg] = 0; + if (sscanf(pv,rfbProtocolVersionFormat,&major_,&minor_) != 2) { + rfbLog("rfbProcessClientProtocolVersion: not a valid RFB client\n"); + rfbCloseClient(cl); + return; + } + rfbLog("Protocol version %d.%d\n", major_, minor_); + + if (major_ != rfbProtocolMajorVersion) { + /* Major version mismatch - send a ConnFailed message */ + + rfbLog("Major version mismatch\n"); + sprintf(failureReason, + "RFB protocol version mismatch - server %d.%d, client %d.%d", + rfbProtocolMajorVersion,rfbProtocolMinorVersion,major_,minor_); + rfbClientConnFailed(cl, failureReason); + return; + } + + if (minor_ != rfbProtocolMinorVersion) { + /* Minor version mismatch - warn but try to continue */ + rfbLog("Ignoring minor version mismatch\n"); + } + + rfbAuthNewClient(cl); +} + + +/* + * rfbClientConnFailed is called when a client connection has failed either + * because it talks the wrong protocol or it has failed authentication. + */ + +void +rfbClientConnFailed(cl, reason) + rfbClientPtr cl; + char *reason; +{ + char *buf; + int len = strlen(reason); + + buf = (char *)malloc(8 + len); + ((CARD32 *)buf)[0] = Swap32IfLE(rfbConnFailed); + ((CARD32 *)buf)[1] = Swap32IfLE(len); + memcpy(buf + 8, reason, len); + + if (WriteExact(cl, buf, 8 + len) < 0) + rfbLogPerror("rfbClientConnFailed: write"); + free(buf); + rfbCloseClient(cl); +} + + +/* + * rfbProcessClientInitMessage is called when the client sends its + * initialisation message. + */ + +static void +rfbProcessClientInitMessage(cl) + rfbClientPtr cl; +{ + rfbClientInitMsg ci; + char buf[256]; + rfbServerInitMsg *si = (rfbServerInitMsg *)buf; + int len, n; + rfbClientIteratorPtr iterator; + rfbClientPtr otherCl; + + if ((n = ReadExact(cl, (char *)&ci,sz_rfbClientInitMsg)) <= 0) { + if (n == 0) + rfbLog("rfbProcessClientInitMessage: client gone\n"); + else + rfbLogPerror("rfbProcessClientInitMessage: read"); + rfbCloseClient(cl); + return; + } + + si->framebufferWidth = Swap16IfLE(cl->screen->width); + si->framebufferHeight = Swap16IfLE(cl->screen->height); + si->format = cl->screen->rfbServerFormat; + si->format.redMax = Swap16IfLE(si->format.redMax); + si->format.greenMax = Swap16IfLE(si->format.greenMax); + si->format.blueMax = Swap16IfLE(si->format.blueMax); + + if (strlen(cl->screen->desktopName) > 128) /* sanity check on desktop name len */ + ((char*)cl->screen->desktopName)[128] = 0; + + strcpy(buf + sz_rfbServerInitMsg, cl->screen->desktopName); + len = strlen(buf + sz_rfbServerInitMsg); + si->nameLength = Swap32IfLE(len); + + if (WriteExact(cl, buf, sz_rfbServerInitMsg + len) < 0) { + rfbLogPerror("rfbProcessClientInitMessage: write"); + rfbCloseClient(cl); + return; + } + + cl->state = RFB_NORMAL; + + if (!cl->reverseConnection && + (cl->screen->rfbNeverShared || (!cl->screen->rfbAlwaysShared && !ci.shared))) { + + if (cl->screen->rfbDontDisconnect) { + iterator = rfbGetClientIterator(cl->screen); + while ((otherCl = rfbClientIteratorNext(iterator)) != NULL) { + if ((otherCl != cl) && (otherCl->state == RFB_NORMAL)) { + rfbLog("-dontdisconnect: Not shared & existing client\n"); + rfbLog(" refusing new client %s\n", cl->host); + rfbCloseClient(cl); + rfbReleaseClientIterator(iterator); + return; + } + } + rfbReleaseClientIterator(iterator); + } else { + iterator = rfbGetClientIterator(cl->screen); + while ((otherCl = rfbClientIteratorNext(iterator)) != NULL) { + if ((otherCl != cl) && (otherCl->state == RFB_NORMAL)) { + rfbLog("Not shared - closing connection to client %s\n", + otherCl->host); + rfbCloseClient(otherCl); + } + } + rfbReleaseClientIterator(iterator); + } + } +} + + +/* + * rfbProcessClientNormalMessage is called when the client has sent a normal + * protocol message. + */ + +static void +rfbProcessClientNormalMessage(cl) + rfbClientPtr cl; +{ + int n=0; + rfbClientToServerMsg msg; + char *str; + + if ((n = ReadExact(cl, (char *)&msg, 1)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + rfbCloseClient(cl); + return; + } + + switch (msg.type) { + + case rfbSetPixelFormat: + + if ((n = ReadExact(cl, ((char *)&msg) + 1, + sz_rfbSetPixelFormatMsg - 1)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + rfbCloseClient(cl); + return; + } + + cl->format.bitsPerPixel = msg.spf.format.bitsPerPixel; + cl->format.depth = msg.spf.format.depth; + cl->format.bigEndian = (msg.spf.format.bigEndian ? TRUE : FALSE); + cl->format.trueColour = (msg.spf.format.trueColour ? TRUE : FALSE); + cl->format.redMax = Swap16IfLE(msg.spf.format.redMax); + cl->format.greenMax = Swap16IfLE(msg.spf.format.greenMax); + cl->format.blueMax = Swap16IfLE(msg.spf.format.blueMax); + cl->format.redShift = msg.spf.format.redShift; + cl->format.greenShift = msg.spf.format.greenShift; + cl->format.blueShift = msg.spf.format.blueShift; + + cl->readyForSetColourMapEntries = TRUE; + cl->screen->setTranslateFunction(cl); + + return; + + + case rfbFixColourMapEntries: + if ((n = ReadExact(cl, ((char *)&msg) + 1, + sz_rfbFixColourMapEntriesMsg - 1)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + rfbCloseClient(cl); + return; + } + rfbLog("rfbProcessClientNormalMessage: %s", + "FixColourMapEntries unsupported\n"); + rfbCloseClient(cl); + return; + + + case rfbSetEncodings: + { + int i; + CARD32 enc; + + if ((n = ReadExact(cl, ((char *)&msg) + 1, + sz_rfbSetEncodingsMsg - 1)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + rfbCloseClient(cl); + return; + } + + msg.se.nEncodings = Swap16IfLE(msg.se.nEncodings); + + cl->preferredEncoding = -1; + cl->useCopyRect = FALSE; + cl->enableCursorShapeUpdates = FALSE; + cl->enableLastRectEncoding = FALSE; + cl->disableBackground = FALSE; + + for (i = 0; i < msg.se.nEncodings; i++) { + if ((n = ReadExact(cl, (char *)&enc, 4)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + rfbCloseClient(cl); + return; + } + enc = Swap32IfLE(enc); + + switch (enc) { + + case rfbEncodingCopyRect: + cl->useCopyRect = TRUE; + break; + case rfbEncodingRaw: + if (cl->preferredEncoding == -1) { + cl->preferredEncoding = enc; + rfbLog("Using raw encoding for client %s\n", + cl->host); + } + break; + case rfbEncodingRRE: + if (cl->preferredEncoding == -1) { + cl->preferredEncoding = enc; + rfbLog("Using rre encoding for client %s\n", + cl->host); + } + break; + case rfbEncodingCoRRE: + if (cl->preferredEncoding == -1) { + cl->preferredEncoding = enc; + rfbLog("Using CoRRE encoding for client %s\n", + cl->host); + } + break; + case rfbEncodingHextile: + if (cl->preferredEncoding == -1) { + cl->preferredEncoding = enc; + rfbLog("Using hextile encoding for client %s\n", + cl->host); + } + break; + case rfbEncodingZlib: + if (cl->preferredEncoding == -1) { + cl->preferredEncoding = enc; + rfbLog("Using zlib encoding for client %s\n", + cl->host); + } + break; + case rfbEncodingTight: + if (cl->preferredEncoding == -1) { + cl->preferredEncoding = enc; + rfbLog("Using tight encoding for client %s\n", + cl->host); + } + break; + case rfbEncodingXCursor: + if (cl->enableSoftCursorUpdates) + break; + if(!cl->screen->dontConvertRichCursorToXCursor) { + rfbLog("Enabling X-style cursor updates for client %s\n", + cl->host); + cl->enableCursorShapeUpdates = TRUE; + cl->cursorWasChanged = TRUE; + } + break; + case rfbEncodingRichCursor: + rfbLog("Enabling full-color cursor updates for client " + "%s\n", cl->host); + if (cl->enableSoftCursorUpdates) + break; + cl->enableCursorShapeUpdates = TRUE; + cl->useRichCursorEncoding = TRUE; + cl->cursorWasChanged = TRUE; + break; + case rfbEncodingSoftCursor: + rfbLog("Enabling soft cursor updates for client " + "%s\n", cl->host); + cl->enableSoftCursorUpdates = TRUE; + cl->cursorWasChanged = TRUE; + cl->cursorWasMoved = TRUE; + cl->enableCursorShapeUpdates = FALSE; + cl->useRichCursorEncoding = FALSE; + break; + case rfbEncodingLastRect: + if (!cl->enableLastRectEncoding) { + rfbLog("Enabling LastRect protocol extension for client " + "%s\n", cl->host); + cl->enableLastRectEncoding = TRUE; + } + break; + case rfbEncodingBackground: + rfbLog("Disabling background for client " + "%s\n", cl->host); + cl->disableBackground = TRUE; + break; +#ifdef BACKCHANNEL + case rfbEncodingBackChannel: + if (!cl->enableBackChannel) { + rfbLog("Enabling BackChannel protocol extension for " + "client %s\n", cl->host); + cl->enableBackChannel = TRUE; + } + break; +#endif + default: + if ( enc >= (CARD32)rfbEncodingCompressLevel0 && + enc <= (CARD32)rfbEncodingCompressLevel9 ) { + cl->zlibCompressLevel = enc & 0x0F; + cl->tightCompressLevel = enc & 0x0F; + rfbLog("Using compression level %d for client %s\n", + cl->tightCompressLevel, cl->host); + } else if ( enc >= (CARD32)rfbEncodingQualityLevel0 && + enc <= (CARD32)rfbEncodingQualityLevel9 ) { + cl->tightQualityLevel = enc & 0x0F; + rfbLog("Using image quality level %d for client %s\n", + cl->tightQualityLevel, cl->host); + } else + rfbLog("rfbProcessClientNormalMessage: ignoring unknown " + "encoding type %d\n", (int)enc); + } + } + + if (cl->preferredEncoding == -1) { + cl->preferredEncoding = rfbEncodingRaw; + } + + cl->negotiationFinishedHook(cl); + + return; + } + + + case rfbFramebufferUpdateRequest: + { + sraRegionPtr tmpRegion; + + if ((n = ReadExact(cl, ((char *)&msg) + 1, + sz_rfbFramebufferUpdateRequestMsg-1)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + rfbCloseClient(cl); + return; + } + + tmpRegion = + sraRgnCreateRect(Swap16IfLE(msg.fur.x), + Swap16IfLE(msg.fur.y), + Swap16IfLE(msg.fur.x)+Swap16IfLE(msg.fur.w), + Swap16IfLE(msg.fur.y)+Swap16IfLE(msg.fur.h)); + + LOCK(cl->updateMutex); + sraRgnOr(cl->requestedRegion,tmpRegion); + + if (!cl->readyForSetColourMapEntries) { + /* client hasn't sent a SetPixelFormat so is using server's */ + cl->readyForSetColourMapEntries = TRUE; + if (!cl->format.trueColour) { + if (!rfbSetClientColourMap(cl, 0, 0)) { + sraRgnDestroy(tmpRegion); + UNLOCK(cl->updateMutex); + return; + } + } + } + + if (!msg.fur.incremental) { + sraRgnOr(cl->modifiedRegion,tmpRegion); + sraRgnSubtract(cl->copyRegion,tmpRegion); + } + TSIGNAL(cl->updateCond); + UNLOCK(cl->updateMutex); + + sraRgnDestroy(tmpRegion); + + return; + } + + case rfbKeyEvent: + + cl->rfbKeyEventsRcvd++; + + if ((n = ReadExact(cl, ((char *)&msg) + 1, + sz_rfbKeyEventMsg - 1)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + rfbCloseClient(cl); + return; + } + + cl->screen->kbdAddEvent(msg.ke.down, (KeySym)Swap32IfLE(msg.ke.key), cl); + return; + + + case rfbPointerEvent: + + cl->rfbPointerEventsRcvd++; + + if ((n = ReadExact(cl, ((char *)&msg) + 1, + sz_rfbPointerEventMsg - 1)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + rfbCloseClient(cl); + return; + } + + if (pointerClient && (pointerClient != cl)) + return; + + if (msg.pe.buttonMask == 0) + pointerClient = NULL; + else + pointerClient = cl; + + cl->screen->ptrAddEvent(msg.pe.buttonMask, + Swap16IfLE(msg.pe.x), Swap16IfLE(msg.pe.y), cl); + return; + + + case rfbClientCutText: + + if ((n = ReadExact(cl, ((char *)&msg) + 1, + sz_rfbClientCutTextMsg - 1)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + rfbCloseClient(cl); + return; + } + + msg.cct.length = Swap32IfLE(msg.cct.length); + + str = (char *)malloc(msg.cct.length); + + if ((n = ReadExact(cl, str, msg.cct.length)) <= 0) { + if (n != 0) + rfbLogPerror("rfbProcessClientNormalMessage: read"); + free(str); + rfbCloseClient(cl); + return; + } + + cl->screen->setXCutText(str, msg.cct.length, cl); + + free(str); + return; + + + default: + + rfbLog("rfbProcessClientNormalMessage: unknown message type %d\n", + msg.type); + rfbLog(" ... closing connection\n"); + rfbCloseClient(cl); + return; + } +} + + +/* + * rfbSendPing - send an empty framebuffer request + */ + +Bool +rfbSendPing(cl) + rfbClientPtr cl; +{ + rfbFramebufferUpdateMsg *fu = (rfbFramebufferUpdateMsg *)cl->updateBuf; + cl->rfbFramebufferUpdateMessagesSent++; + fu->type = rfbFramebufferUpdate; + fu->nRects = Swap16IfLE((CARD16)0); + cl->ublen = sz_rfbFramebufferUpdateMsg; + return TRUE; +} + + +/* + * rfbSendFramebufferUpdate - send the currently pending framebuffer update to + * the RFB client. + * givenUpdateRegion is not changed. + */ + +Bool +rfbSendFramebufferUpdate(cl, givenUpdateRegion) + rfbClientPtr cl; + sraRegionPtr givenUpdateRegion; +{ + sraRectangleIterator* i; + sraRect rect; + int nUpdateRegionRects; + rfbFramebufferUpdateMsg *fu = (rfbFramebufferUpdateMsg *)cl->updateBuf; + sraRegionPtr updateRegion,updateCopyRegion,tmpRegion; + int dx, dy; + Bool sendCursorShape = FALSE; + int sendSoftCursorRects = 0; + + if(cl->screen->displayHook) + cl->screen->displayHook(cl); + + /* + * If this client understands cursor shape updates, cursor should be + * removed from the framebuffer. Otherwise, make sure it's put up. + */ + + if (cl->enableCursorShapeUpdates) { + if (cl->screen->cursorIsDrawn) { + rfbUndrawCursor(cl->screen); + } + if (!cl->screen->cursorIsDrawn && cl->cursorWasChanged && + cl->readyForSetColourMapEntries) + sendCursorShape = TRUE; + } + else if (cl->enableSoftCursorUpdates) { + if (cl->screen->cursorIsDrawn) { + rfbUndrawCursor(cl->screen); + } + if (cl->cursorWasChanged) + sendSoftCursorRects=2; + else if (cl->cursorWasMoved) + sendSoftCursorRects=1; + } else { + if (!cl->screen->cursorIsDrawn) { + rfbDrawCursor(cl->screen); + } + } + + LOCK(cl->updateMutex); + + /* + * The modifiedRegion may overlap the destination copyRegion. We remove + * any overlapping bits from the copyRegion (since they'd only be + * overwritten anyway). + */ + + sraRgnSubtract(cl->copyRegion,cl->modifiedRegion); + + /* + * The client is interested in the region requestedRegion. The region + * which should be updated now is the intersection of requestedRegion + * and the union of modifiedRegion and copyRegion. If it's empty then + * no update is needed. + */ + + updateRegion = sraRgnCreateRgn(givenUpdateRegion); + sraRgnOr(updateRegion,cl->copyRegion); + if(!sraRgnAnd(updateRegion,cl->requestedRegion) && + !(sendCursorShape || sendSoftCursorRects)) { + sraRgnDestroy(updateRegion); + UNLOCK(cl->updateMutex); + return TRUE; + } + + /* + * We assume that the client doesn't have any pixel data outside the + * requestedRegion. In other words, both the source and destination of a + * copy must lie within requestedRegion. So the region we can send as a + * copy is the intersection of the copyRegion with both the requestedRegion + * and the requestedRegion translated by the amount of the copy. We set + * updateCopyRegion to this. + */ + + updateCopyRegion = sraRgnCreateRgn(cl->copyRegion); + sraRgnAnd(updateCopyRegion,cl->requestedRegion); + tmpRegion = sraRgnCreateRgn(cl->requestedRegion); + sraRgnOffset(tmpRegion,cl->copyDX,cl->copyDY); + sraRgnAnd(updateCopyRegion,tmpRegion); + sraRgnDestroy(tmpRegion); + dx = cl->copyDX; + dy = cl->copyDY; + + /* + * Next we remove updateCopyRegion from updateRegion so that updateRegion + * is the part of this update which is sent as ordinary pixel data (i.e not + * a copy). + */ + + sraRgnSubtract(updateRegion,updateCopyRegion); + + /* + * Finally we leave modifiedRegion to be the remainder (if any) of parts of + * the screen which are modified but outside the requestedRegion. We also + * empty both the requestedRegion and the copyRegion - note that we never + * carry over a copyRegion for a future update. + */ + + + sraRgnOr(cl->modifiedRegion,cl->copyRegion); + sraRgnSubtract(cl->modifiedRegion,updateRegion); + sraRgnSubtract(cl->modifiedRegion,updateCopyRegion); + + /* sraRgnMakeEmpty(cl->requestedRegion); */ + sraRgnMakeEmpty(cl->copyRegion); + cl->copyDX = 0; + cl->copyDY = 0; + + UNLOCK(cl->updateMutex); + + /* + * Now send the update. + */ + + cl->rfbFramebufferUpdateMessagesSent++; + + if (cl->preferredEncoding == rfbEncodingCoRRE) { + nUpdateRegionRects = 0; + + for(i = sraRgnGetIterator(updateRegion); sraRgnIteratorNext(i,&rect);){ + int x = rect.x1; + int y = rect.y1; + int w = rect.x2 - x; + int h = rect.y2 - y; + nUpdateRegionRects += (((w-1) / cl->correMaxWidth + 1) + * ((h-1) / cl->correMaxHeight + 1)); + } + } else if (cl->preferredEncoding == rfbEncodingZlib) { + nUpdateRegionRects = 0; + + for(i = sraRgnGetIterator(updateRegion); sraRgnIteratorNext(i,&rect);){ + int x = rect.x1; + int y = rect.y1; + int w = rect.x2 - x; + int h = rect.y2 - y; + nUpdateRegionRects += (((h-1) / (ZLIB_MAX_SIZE( w ) / w)) + 1); + } + } else if (cl->preferredEncoding == rfbEncodingTight) { + nUpdateRegionRects = 0; + + for(i = sraRgnGetIterator(updateRegion); sraRgnIteratorNext(i,&rect);){ + int x = rect.x1; + int y = rect.y1; + int w = rect.x2 - x; + int h = rect.y2 - y; + int n = rfbNumCodedRectsTight(cl, x, y, w, h); + if (n == 0) { + nUpdateRegionRects = 0xFFFF; + break; + } + nUpdateRegionRects += n; + } + } else { + nUpdateRegionRects = sraRgnCountRects(updateRegion); + } + + fu->type = rfbFramebufferUpdate; + if (nUpdateRegionRects != 0xFFFF) { + fu->nRects = Swap16IfLE((CARD16)(sraRgnCountRects(updateCopyRegion) + + nUpdateRegionRects + + !!sendCursorShape + sendSoftCursorRects)); + } else { + fu->nRects = 0xFFFF; + } + cl->ublen = sz_rfbFramebufferUpdateMsg; + + if (sendCursorShape) { + cl->cursorWasChanged = FALSE; + if (!rfbSendCursorShape(cl)) { + sraRgnDestroy(updateRegion); + return FALSE; + } + } + + if (sendSoftCursorRects) { + if (!rfbSendSoftCursor(cl, cl->cursorWasChanged)) { + sraRgnDestroy(updateRegion); + return FALSE; + } + cl->cursorWasChanged = FALSE; + cl->cursorWasMoved = FALSE; + } + + if (!sraRgnEmpty(updateCopyRegion)) { + if (!rfbSendCopyRegion(cl,updateCopyRegion,dx,dy)) { + sraRgnDestroy(updateRegion); + sraRgnDestroy(updateCopyRegion); + return FALSE; + } + } + + sraRgnDestroy(updateCopyRegion); + + for(i = sraRgnGetIterator(updateRegion); sraRgnIteratorNext(i,&rect);){ + int x = rect.x1; + int y = rect.y1; + int w = rect.x2 - x; + int h = rect.y2 - y; + + cl->rfbRawBytesEquivalent += (sz_rfbFramebufferUpdateRectHeader + + w * (cl->format.bitsPerPixel / 8) * h); + + switch (cl->preferredEncoding) { + case rfbEncodingRaw: + if (!rfbSendRectEncodingRaw(cl, x, y, w, h)) { + sraRgnDestroy(updateRegion); + return FALSE; + } + break; + case rfbEncodingRRE: + if (!rfbSendRectEncodingRRE(cl, x, y, w, h)) { + sraRgnDestroy(updateRegion); + return FALSE; + } + break; + case rfbEncodingCoRRE: + if (!rfbSendRectEncodingCoRRE(cl, x, y, w, h)) { + sraRgnDestroy(updateRegion); + return FALSE; + } + break; + case rfbEncodingHextile: + if (!rfbSendRectEncodingHextile(cl, x, y, w, h)) { + sraRgnDestroy(updateRegion); + return FALSE; + } + break; + case rfbEncodingZlib: + if (!rfbSendRectEncodingZlib(cl, x, y, w, h)) { + sraRgnDestroy(updateRegion); + return FALSE; + } + break; + case rfbEncodingTight: + if (!rfbSendRectEncodingTight(cl, x, y, w, h)) { + sraRgnDestroy(updateRegion); + return FALSE; + } + break; + } + } + + if ( nUpdateRegionRects == 0xFFFF && + !rfbSendLastRectMarker(cl) ) { + sraRgnDestroy(updateRegion); + return FALSE; + } + + if (!rfbSendUpdateBuf(cl)) { + sraRgnDestroy(updateRegion); + return FALSE; + } + + sraRgnDestroy(updateRegion); + return TRUE; +} + + +/* + * Send the copy region as a string of CopyRect encoded rectangles. + * The only slightly tricky thing is that we should send the messages in + * the correct order so that an earlier CopyRect will not corrupt the source + * of a later one. + */ + +Bool +rfbSendCopyRegion(cl, reg, dx, dy) + rfbClientPtr cl; + sraRegionPtr reg; + int dx, dy; +{ + int x, y, w, h; + rfbFramebufferUpdateRectHeader rect; + rfbCopyRect cr; + sraRectangleIterator* i; + sraRect rect1; + + /* printf("copyrect: "); sraRgnPrint(reg); putchar('\n');fflush(stdout); */ + i = sraRgnGetReverseIterator(reg,dx>0,dy>0); + + while(sraRgnIteratorNext(i,&rect1)) { + x = rect1.x1; + y = rect1.y1; + w = rect1.x2 - x; + h = rect1.y2 - y; + + rect.r.x = Swap16IfLE(x); + rect.r.y = Swap16IfLE(y); + rect.r.w = Swap16IfLE(w); + rect.r.h = Swap16IfLE(h); + rect.encoding = Swap32IfLE(rfbEncodingCopyRect); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect, + sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + cr.srcX = Swap16IfLE(x - dx); + cr.srcY = Swap16IfLE(y - dy); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&cr, sz_rfbCopyRect); + cl->ublen += sz_rfbCopyRect; + + cl->rfbRectanglesSent[rfbEncodingCopyRect]++; + cl->rfbBytesSent[rfbEncodingCopyRect] + += sz_rfbFramebufferUpdateRectHeader + sz_rfbCopyRect; + + } + + return TRUE; +} + +/* + * Send a given rectangle in raw encoding (rfbEncodingRaw). + */ + +Bool +rfbSendRectEncodingRaw(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + rfbFramebufferUpdateRectHeader rect; + int nlines; + int bytesPerLine = w * (cl->format.bitsPerPixel / 8); + char *fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y) + + (x * (cl->screen->bitsPerPixel / 8))); + + if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + rect.r.x = Swap16IfLE(x); + rect.r.y = Swap16IfLE(y); + rect.r.w = Swap16IfLE(w); + rect.r.h = Swap16IfLE(h); + rect.encoding = Swap32IfLE(rfbEncodingRaw); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + cl->rfbRectanglesSent[rfbEncodingRaw]++; + cl->rfbBytesSent[rfbEncodingRaw] + += sz_rfbFramebufferUpdateRectHeader + bytesPerLine * h; + + nlines = (UPDATE_BUF_SIZE - cl->ublen) / bytesPerLine; + + while (TRUE) { + if (nlines > h) + nlines = h; + + (*cl->translateFn)(cl->translateLookupTable, + &(cl->screen->rfbServerFormat), + &cl->format, fbptr, &cl->updateBuf[cl->ublen], + cl->screen->paddedWidthInBytes, w, nlines); + + cl->ublen += nlines * bytesPerLine; + h -= nlines; + + if (h == 0) /* rect fitted in buffer, do next one */ + return TRUE; + + /* buffer full - flush partial rect and do another nlines */ + + if (!rfbSendUpdateBuf(cl)) + return FALSE; + + fbptr += (cl->screen->paddedWidthInBytes * nlines); + + nlines = (UPDATE_BUF_SIZE - cl->ublen) / bytesPerLine; + if (nlines == 0) { + rfbLog("rfbSendRectEncodingRaw: send buffer too small for %d " + "bytes per line\n", bytesPerLine); + rfbCloseClient(cl); + return FALSE; + } + } +} + + + +/* + * Send an empty rectangle with encoding field set to value of + * rfbEncodingLastRect to notify client that this is the last + * rectangle in framebuffer update ("LastRect" extension of RFB + * protocol). + */ + +Bool +rfbSendLastRectMarker(cl) + rfbClientPtr cl; +{ + rfbFramebufferUpdateRectHeader rect; + + if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + rect.encoding = Swap32IfLE(rfbEncodingLastRect); + rect.r.x = 0; + rect.r.y = 0; + rect.r.w = 0; + rect.r.h = 0; + + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect,sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + cl->rfbLastRectMarkersSent++; + cl->rfbLastRectBytesSent += sz_rfbFramebufferUpdateRectHeader; + + return TRUE; +} + + +/* + * Send the contents of cl->updateBuf. Returns 1 if successful, -1 if + * not (errno should be set). + */ + +Bool +rfbSendUpdateBuf(cl) + rfbClientPtr cl; +{ + if(cl->sock<0) + return FALSE; + + if (WriteExact(cl, cl->updateBuf, cl->ublen) < 0) { + rfbLogPerror("rfbSendUpdateBuf: write"); + rfbCloseClient(cl); + return FALSE; + } + + cl->ublen = 0; + return TRUE; +} + +/* + * rfbSendSetColourMapEntries sends a SetColourMapEntries message to the + * client, using values from the currently installed colormap. + */ + +Bool +rfbSendSetColourMapEntries(cl, firstColour, nColours) + rfbClientPtr cl; + int firstColour; + int nColours; +{ + char buf[sz_rfbSetColourMapEntriesMsg + 256 * 3 * 2]; + rfbSetColourMapEntriesMsg *scme = (rfbSetColourMapEntriesMsg *)buf; + CARD16 *rgb = (CARD16 *)(&buf[sz_rfbSetColourMapEntriesMsg]); + rfbColourMap* cm = &cl->screen->colourMap; + + int i, len; + + scme->type = rfbSetColourMapEntries; + + scme->firstColour = Swap16IfLE(firstColour); + scme->nColours = Swap16IfLE(nColours); + + len = sz_rfbSetColourMapEntriesMsg; + + for (i = 0; i < nColours; i++) { + if(i<(int)cm->count) { + if(cm->is16) { + rgb[i*3] = Swap16IfLE(cm->data.shorts[i*3]); + rgb[i*3+1] = Swap16IfLE(cm->data.shorts[i*3+1]); + rgb[i*3+2] = Swap16IfLE(cm->data.shorts[i*3+2]); + } else { + rgb[i*3] = Swap16IfLE(cm->data.bytes[i*3]); + rgb[i*3+1] = Swap16IfLE(cm->data.bytes[i*3+1]); + rgb[i*3+2] = Swap16IfLE(cm->data.bytes[i*3+2]); + } + } + } + + len += nColours * 3 * 2; + + if (WriteExact(cl, buf, len) < 0) { + rfbLogPerror("rfbSendSetColourMapEntries: write"); + rfbCloseClient(cl); + return FALSE; + } + return TRUE; +} + +/* + * rfbSendBell sends a Bell message to all the clients. + */ + +void +rfbSendBell(rfbScreenInfoPtr rfbScreen) +{ + rfbClientIteratorPtr i; + rfbClientPtr cl; + rfbBellMsg b; + + i = rfbGetClientIterator(rfbScreen); + while((cl=rfbClientIteratorNext(i))) { + b.type = rfbBell; + if (WriteExact(cl, (char *)&b, sz_rfbBellMsg) < 0) { + rfbLogPerror("rfbSendBell: write"); + rfbCloseClient(cl); + } + } + rfbReleaseClientIterator(i); +} + + +/* + * rfbSendServerCutText sends a ServerCutText message to all the clients. + */ + +void +rfbSendServerCutText(rfbScreenInfoPtr rfbScreen,char *str, int len) +{ + rfbClientPtr cl; + rfbServerCutTextMsg sct; + rfbClientIteratorPtr iterator; + + iterator = rfbGetClientIterator(rfbScreen); + while ((cl = rfbClientIteratorNext(iterator)) != NULL) { + sct.type = rfbServerCutText; + sct.length = Swap32IfLE(len); + if (WriteExact(cl, (char *)&sct, + sz_rfbServerCutTextMsg) < 0) { + rfbLogPerror("rfbSendServerCutText: write"); + rfbCloseClient(cl); + continue; + } + if (WriteExact(cl, str, len) < 0) { + rfbLogPerror("rfbSendServerCutText: write"); + rfbCloseClient(cl); + } + } + rfbReleaseClientIterator(iterator); +} + +/***************************************************************************** + * + * UDP can be used for keyboard and pointer events when the underlying + * network is highly reliable. This is really here to support ORL's + * videotile, whose TCP implementation doesn't like sending lots of small + * packets (such as 100s of pen readings per second!). + */ + +unsigned char ptrAcceleration = 50; + +void +rfbNewUDPConnection(rfbScreenInfoPtr rfbScreen, int sock) +{ + if (write(sock, &ptrAcceleration, 1) < 0) { + rfbLogPerror("rfbNewUDPConnection: write"); + } +} + +/* + * Because UDP is a message based service, we can't read the first byte and + * then the rest of the packet separately like we do with TCP. We will always + * get a whole packet delivered in one go, so we ask read() for the maximum + * number of bytes we can possibly get. + */ + +void +rfbProcessUDPInput(rfbScreenInfoPtr rfbScreen) +{ + int n; + rfbClientPtr cl=rfbScreen->udpClient; + rfbClientToServerMsg msg; + + if((!cl) || cl->onHold) + return; + + if ((n = read(rfbScreen->udpSock, (char *)&msg, sizeof(msg))) <= 0) { + if (n < 0) { + rfbLogPerror("rfbProcessUDPInput: read"); + } + rfbDisconnectUDPSock(rfbScreen); + return; + } + + switch (msg.type) { + + case rfbKeyEvent: + if (n != sz_rfbKeyEventMsg) { + rfbLog("rfbProcessUDPInput: key event incorrect length\n"); + rfbDisconnectUDPSock(rfbScreen); + return; + } + cl->screen->kbdAddEvent(msg.ke.down, (KeySym)Swap32IfLE(msg.ke.key), cl); + break; + + case rfbPointerEvent: + if (n != sz_rfbPointerEventMsg) { + rfbLog("rfbProcessUDPInput: ptr event incorrect length\n"); + rfbDisconnectUDPSock(rfbScreen); + return; + } + cl->screen->ptrAddEvent(msg.pe.buttonMask, + Swap16IfLE(msg.pe.x), Swap16IfLE(msg.pe.y), cl); + break; + + default: + rfbLog("rfbProcessUDPInput: unknown message type %d\n", + msg.type); + rfbDisconnectUDPSock(rfbScreen); + } +} + +#ifdef BACKCHANNEL +void rfbSendBackChannel(rfbScreenInfoPtr rfbScreen,char* str,int len) +{ + rfbClientPtr cl; + rfbBackChannelMsg sct; + rfbClientIteratorPtr iterator; + + iterator = rfbGetClientIterator(rfbScreen); + while ((cl = rfbClientIteratorNext(iterator)) != NULL) { + if (cl->enableBackChannel) { + sct.type = rfbBackChannel; + sct.length = Swap32IfLE(len); + if (WriteExact(cl, (char *)&sct, + sz_rfbBackChannelMsg) < 0) { + rfbLogPerror("rfbSendBackChannel: write"); + rfbCloseClient(cl); + continue; + } + if (WriteExact(cl, str, len) < 0) { + rfbLogPerror("rfbSendBackChannel: write"); + rfbCloseClient(cl); + } + } + } + rfbReleaseClientIterator(iterator); +} +#endif diff --git a/krfb/libvncserver/rre.c b/krfb/libvncserver/rre.c new file mode 100644 index 00000000..9a552cb0 --- /dev/null +++ b/krfb/libvncserver/rre.c @@ -0,0 +1,322 @@ +/* + * rre.c + * + * Routines to implement Rise-and-Run-length Encoding (RRE). This + * code is based on krw's original javatel rfbserver. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include "rfb.h" + +/* + * rreBeforeBuf contains pixel data in the client's format. + * rreAfterBuf contains the RRE encoded version. If the RRE encoded version is + * larger than the raw data or if it exceeds rreAfterBufSize then + * raw encoding is used instead. + */ + +static int rreBeforeBufSize = 0; +static char *rreBeforeBuf = NULL; + +static int rreAfterBufSize = 0; +static char *rreAfterBuf = NULL; +static int rreAfterBufLen; + +static int subrectEncode8(CARD8 *data, int w, int h); +static int subrectEncode16(CARD16 *data, int w, int h); +static int subrectEncode32(CARD32 *data, int w, int h); +static CARD32 getBgColour(char *data, int size, int bpp); + + +/* + * rfbSendRectEncodingRRE - send a given rectangle using RRE encoding. + */ + +Bool +rfbSendRectEncodingRRE(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + rfbFramebufferUpdateRectHeader rect; + rfbRREHeader hdr; + int nSubrects; + int i; + char *fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y) + + (x * (cl->screen->bitsPerPixel / 8))); + + int maxRawSize = (cl->screen->width * cl->screen->height + * (cl->format.bitsPerPixel / 8)); + + if (rreBeforeBufSize < maxRawSize) { + rreBeforeBufSize = maxRawSize; + if (rreBeforeBuf == NULL) + rreBeforeBuf = (char *)malloc(rreBeforeBufSize); + else + rreBeforeBuf = (char *)realloc(rreBeforeBuf, rreBeforeBufSize); + } + + if (rreAfterBufSize < maxRawSize) { + rreAfterBufSize = maxRawSize; + if (rreAfterBuf == NULL) + rreAfterBuf = (char *)malloc(rreAfterBufSize); + else + rreAfterBuf = (char *)realloc(rreAfterBuf, rreAfterBufSize); + } + + (*cl->translateFn)(cl->translateLookupTable, + &(cl->screen->rfbServerFormat), + &cl->format, fbptr, rreBeforeBuf, + cl->screen->paddedWidthInBytes, w, h); + + switch (cl->format.bitsPerPixel) { + case 8: + nSubrects = subrectEncode8((CARD8 *)rreBeforeBuf, w, h); + break; + case 16: + nSubrects = subrectEncode16((CARD16 *)rreBeforeBuf, w, h); + break; + case 32: + nSubrects = subrectEncode32((CARD32 *)rreBeforeBuf, w, h); + break; + default: + rfbLog("getBgColour: bpp %d?\n",cl->format.bitsPerPixel); + exit(1); + } + + if (nSubrects < 0) { + + /* RRE encoding was too large, use raw */ + + return rfbSendRectEncodingRaw(cl, x, y, w, h); + } + + cl->rfbRectanglesSent[rfbEncodingRRE]++; + cl->rfbBytesSent[rfbEncodingRRE] += (sz_rfbFramebufferUpdateRectHeader + + sz_rfbRREHeader + rreAfterBufLen); + + if (cl->ublen + sz_rfbFramebufferUpdateRectHeader + sz_rfbRREHeader + > UPDATE_BUF_SIZE) + { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + rect.r.x = Swap16IfLE(x); + rect.r.y = Swap16IfLE(y); + rect.r.w = Swap16IfLE(w); + rect.r.h = Swap16IfLE(h); + rect.encoding = Swap32IfLE(rfbEncodingRRE); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect, + sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + hdr.nSubrects = Swap32IfLE(nSubrects); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&hdr, sz_rfbRREHeader); + cl->ublen += sz_rfbRREHeader; + + for (i = 0; i < rreAfterBufLen;) { + + int bytesToCopy = UPDATE_BUF_SIZE - cl->ublen; + + if (i + bytesToCopy > rreAfterBufLen) { + bytesToCopy = rreAfterBufLen - i; + } + + memcpy(&cl->updateBuf[cl->ublen], &rreAfterBuf[i], bytesToCopy); + + cl->ublen += bytesToCopy; + i += bytesToCopy; + + if (cl->ublen == UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + } + + return TRUE; +} + + + +/* + * subrectEncode() encodes the given multicoloured rectangle as a background + * colour overwritten by single-coloured rectangles. It returns the number + * of subrectangles in the encoded buffer, or -1 if subrect encoding won't + * fit in the buffer. It puts the encoded rectangles in rreAfterBuf. The + * single-colour rectangle partition is not optimal, but does find the biggest + * horizontal or vertical rectangle top-left anchored to each consecutive + * coordinate position. + * + * The coding scheme is simply [<bgcolour><subrect><subrect>...] where each + * <subrect> is [<colour><x><y><w><h>]. + */ + +#define DEFINE_SUBRECT_ENCODE(bpp) \ +static int \ +subrectEncode##bpp(data,w,h) \ + CARD##bpp *data; \ + int w; \ + int h; \ +{ \ + CARD##bpp cl; \ + rfbRectangle subrect; \ + int x,y; \ + int i,j; \ + int hx=0,hy,vx=0,vy; \ + int hyflag; \ + CARD##bpp *seg; \ + CARD##bpp *line; \ + int hw,hh,vw,vh; \ + int thex,they,thew,theh; \ + int numsubs = 0; \ + int newLen; \ + CARD##bpp bg = (CARD##bpp)getBgColour((char*)data,w*h,bpp); \ + \ + *((CARD##bpp*)rreAfterBuf) = bg; \ + \ + rreAfterBufLen = (bpp/8); \ + \ + for (y=0; y<h; y++) { \ + line = data+(y*w); \ + for (x=0; x<w; x++) { \ + if (line[x] != bg) { \ + cl = line[x]; \ + hy = y-1; \ + hyflag = 1; \ + for (j=y; j<h; j++) { \ + seg = data+(j*w); \ + if (seg[x] != cl) {break;} \ + i = x; \ + while ((seg[i] == cl) && (i < w)) i += 1; \ + i -= 1; \ + if (j == y) vx = hx = i; \ + if (i < vx) vx = i; \ + if ((hyflag > 0) && (i >= hx)) {hy += 1;} else {hyflag = 0;} \ + } \ + vy = j-1; \ + \ + /* We now have two possible subrects: (x,y,hx,hy) and (x,y,vx,vy) \ + * We'll choose the bigger of the two. \ + */ \ + hw = hx-x+1; \ + hh = hy-y+1; \ + vw = vx-x+1; \ + vh = vy-y+1; \ + \ + thex = x; \ + they = y; \ + \ + if ((hw*hh) > (vw*vh)) { \ + thew = hw; \ + theh = hh; \ + } else { \ + thew = vw; \ + theh = vh; \ + } \ + \ + subrect.x = Swap16IfLE(thex); \ + subrect.y = Swap16IfLE(they); \ + subrect.w = Swap16IfLE(thew); \ + subrect.h = Swap16IfLE(theh); \ + \ + newLen = rreAfterBufLen + (bpp/8) + sz_rfbRectangle; \ + if ((newLen > (w * h * (bpp/8))) || (newLen > rreAfterBufSize)) \ + return -1; \ + \ + numsubs += 1; \ + *((CARD##bpp*)(rreAfterBuf + rreAfterBufLen)) = cl; \ + rreAfterBufLen += (bpp/8); \ + memcpy(&rreAfterBuf[rreAfterBufLen],&subrect,sz_rfbRectangle); \ + rreAfterBufLen += sz_rfbRectangle; \ + \ + /* \ + * Now mark the subrect as done. \ + */ \ + for (j=they; j < (they+theh); j++) { \ + for (i=thex; i < (thex+thew); i++) { \ + data[j*w+i] = bg; \ + } \ + } \ + } \ + } \ + } \ + \ + return numsubs; \ +} + +DEFINE_SUBRECT_ENCODE(8) +DEFINE_SUBRECT_ENCODE(16) +DEFINE_SUBRECT_ENCODE(32) + + +/* + * getBgColour() gets the most prevalent colour in a byte array. + */ +static CARD32 +getBgColour(data,size,bpp) + char *data; + int size; + int bpp; +{ + +#define NUMCLRS 256 + + static int counts[NUMCLRS]; + int i,j,k; + + int maxcount = 0; + CARD8 maxclr = 0; + + if (bpp != 8) { + if (bpp == 16) { + return ((CARD16 *)data)[0]; + } else if (bpp == 32) { + return ((CARD32 *)data)[0]; + } else { + rfbLog("getBgColour: bpp %d?\n",bpp); + exit(1); + } + } + + for (i=0; i<NUMCLRS; i++) { + counts[i] = 0; + } + + for (j=0; j<size; j++) { + k = (int)(((CARD8 *)data)[j]); + if (k >= NUMCLRS) { + rfbLog("getBgColour: unusual colour = %d\n", k); + exit(1); + } + counts[k] += 1; + if (counts[k] > maxcount) { + maxcount = counts[k]; + maxclr = ((CARD8 *)data)[j]; + } + } + + return maxclr; +} diff --git a/krfb/libvncserver/selbox.c b/krfb/libvncserver/selbox.c new file mode 100644 index 00000000..6cdb4590 --- /dev/null +++ b/krfb/libvncserver/selbox.c @@ -0,0 +1,301 @@ +#include <ctype.h> +#include "rfb.h" +#include "keysym.h" + +typedef struct { + rfbScreenInfoPtr screen; + rfbFontDataPtr font; + char** list; + int listSize; + int selected; + int displayStart; + int x1,y1,x2,y2,textH,pageH; + int xhot,yhot; + int buttonWidth,okBX,cancelBX,okX,cancelX,okY; + Bool okInverted,cancelInverted; + int lastButtons; + Pixel colour,backColour; + SelectionChangedHookPtr selChangedHook; + enum { SELECTING, OK, CANCEL } state; +} rfbSelectData; + +static const char okStr[] = "OK"; +static const char cancelStr[] = "Cancel"; + +static void selPaintButtons(rfbSelectData* m,Bool invertOk,Bool invertCancel) +{ + rfbScreenInfoPtr s = m->screen; + Pixel bcolour = m->backColour; + Pixel colour = m->colour; + + rfbFillRect(s,m->x1,m->okY-m->textH,m->x2,m->okY,bcolour); + + if(invertOk) { + rfbFillRect(s,m->okBX,m->okY-m->textH,m->okBX+m->buttonWidth,m->okY,colour); + rfbDrawStringWithClip(s,m->font,m->okX+m->xhot,m->okY-1+m->yhot,okStr, + m->x1,m->okY-m->textH,m->x2,m->okY, + bcolour,colour); + } else + rfbDrawString(s,m->font,m->okX+m->xhot,m->okY-1+m->yhot,okStr,colour); + + if(invertCancel) { + rfbFillRect(s,m->cancelBX,m->okY-m->textH, + m->cancelBX+m->buttonWidth,m->okY,colour); + rfbDrawStringWithClip(s,m->font,m->cancelX+m->xhot,m->okY-1+m->yhot, + cancelStr,m->x1,m->okY-m->textH,m->x2,m->okY, + bcolour,colour); + } else + rfbDrawString(s,m->font,m->cancelX+m->xhot,m->okY-1+m->yhot,cancelStr,colour); + + m->okInverted = invertOk; + m->cancelInverted = invertCancel; +} + +/* line is relative to displayStart */ +static void selPaintLine(rfbSelectData* m,int line,Bool invert) +{ + int y1 = m->y1+line*m->textH, y2 = y1+m->textH; + if(y2>m->y2) + y2=m->y2; + rfbFillRect(m->screen,m->x1,y1,m->x2,y2,invert?m->colour:m->backColour); + if(m->displayStart+line<m->listSize) + rfbDrawStringWithClip(m->screen,m->font,m->x1+m->xhot,y2-1+m->yhot, + m->list[m->displayStart+line], + m->x1,y1,m->x2,y2, + invert?m->backColour:m->colour, + invert?m->backColour:m->colour); +} + +static void selSelect(rfbSelectData* m,int _index) +{ + int delta; + + if(_index==m->selected || _index<0 || _index>=m->listSize) + return; + + if(m->selected>=0) + selPaintLine(m,m->selected-m->displayStart,FALSE); + + if(_index<m->displayStart || _index>=m->displayStart+m->pageH) { + /* targetLine is the screen line in which the selected line will + be displayed. + targetLine = m->pageH/2 doesn't look so nice */ + int targetLine = m->selected-m->displayStart; + int lineStart,lineEnd; + + /* scroll */ + if(_index<targetLine) + targetLine = _index; + else if(_index+m->pageH-targetLine>=m->listSize) + targetLine = _index+m->pageH-m->listSize; + delta = _index-(m->displayStart+targetLine); + + if(delta>-m->pageH && delta<m->pageH) { + if(delta>0) { + lineStart = m->pageH-delta; + lineEnd = m->pageH; + rfbDoCopyRect(m->screen,m->x1,m->y1,m->x2,m->y1+lineStart*m->textH, + 0,-delta*m->textH); + } else { + lineStart = 0; + lineEnd = -delta; + rfbDoCopyRect(m->screen, + m->x1,m->y1+lineEnd*m->textH,m->x2,m->y2, + 0,-delta*m->textH); + } + } else { + lineStart = 0; + lineEnd = m->pageH; + } + m->displayStart += delta; + for(delta=lineStart;delta<lineEnd;delta++) + if(delta!=_index) + selPaintLine(m,delta,FALSE); + } + + m->selected = _index; + selPaintLine(m,m->selected-m->displayStart,TRUE); + + if(m->selChangedHook) + m->selChangedHook(_index); + + /* todo: scrollbars */ +} + +static void selKbdAddEvent(Bool down,KeySym keySym,rfbClientPtr cl) +{ + if(down) { + if(keySym>' ' && keySym<0xff) { + int i; + rfbSelectData* m = (rfbSelectData*)cl->screen->screenData; + char c = tolower(keySym); + + for(i=m->selected+1;m->list[i] && tolower(m->list[i][0])!=c;i++); + if(!m->list[i]) + for(i=0;i<m->selected && tolower(m->list[i][0])!=c;i++); + selSelect(m,i); + } else if(keySym==XK_Escape) { + rfbSelectData* m = (rfbSelectData*)cl->screen->screenData; + m->state = CANCEL; + } else if(keySym==XK_Return) { + rfbSelectData* m = (rfbSelectData*)cl->screen->screenData; + m->state = OK; + } else { + rfbSelectData* m = (rfbSelectData*)cl->screen->screenData; + int curSel=m->selected; + if(keySym==XK_Up) { + if(curSel>0) + selSelect(m,curSel-1); + } else if(keySym==XK_Down) { + if(curSel+1<m->listSize) + selSelect(m,curSel+1); + } else { + if(keySym==XK_Page_Down) { + if(curSel+m->pageH<m->listSize) + selSelect(m,curSel+m->pageH); + else + selSelect(m,m->listSize-1); + } else if(keySym==XK_Page_Up) { + if(curSel-m->pageH>=0) + selSelect(m,curSel-m->pageH); + else + selSelect(m,0); + } + } + } + } +} + +static void selPtrAddEvent(int buttonMask,int x,int y,rfbClientPtr cl) +{ + rfbSelectData* m = (rfbSelectData*)cl->screen->screenData; + if(y<m->okY && y>=m->okY-m->textH) { + if(x>=m->okBX && x<m->okBX+m->buttonWidth) { + if(!m->okInverted) + selPaintButtons(m,TRUE,FALSE); + if(buttonMask) + m->state = OK; + } else if(x>=m->cancelBX && x<m->cancelBX+m->buttonWidth) { + if(!m->cancelInverted) + selPaintButtons(m,FALSE,TRUE); + if(buttonMask) + m->state = CANCEL; + } else if(m->okInverted || m->cancelInverted) + selPaintButtons(m,FALSE,FALSE); + } else { + if(m->okInverted || m->cancelInverted) + selPaintButtons(m,FALSE,FALSE); + if(!m->lastButtons && buttonMask) { + if(x>=m->x1 && x<m->x2 && y>=m->y1 && y<m->y2) + selSelect(m,m->displayStart+(y-m->y1)/m->textH); + } + } + m->lastButtons = buttonMask; + + /* todo: scrollbars */ +} + +static rfbCursorPtr selGetCursorPtr(rfbClientPtr cl) +{ + return(0); +} + +int rfbSelectBox(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font, + char** list, + int x1,int y1,int x2,int y2, + Pixel colour,Pixel backColour, + int border,SelectionChangedHookPtr selChangedHook) +{ + int bpp = rfbScreen->bitsPerPixel/8; + char* frameBufferBackup; + void* screenDataBackup = rfbScreen->screenData; + KbdAddEventProcPtr kbdAddEventBackup = rfbScreen->kbdAddEvent; + PtrAddEventProcPtr ptrAddEventBackup = rfbScreen->ptrAddEvent; + GetCursorProcPtr getCursorPtrBackup = rfbScreen->getCursorPtr; + DisplayHookPtr displayHookBackup = rfbScreen->displayHook; + rfbSelectData selData; + int i,j,k; + int fx1,fy1,fx2,fy2; /* for font bbox */ + + if(list==0 || *list==0) + return(-1); + + rfbWholeFontBBox(font, &fx1, &fy1, &fx2, &fy2); + selData.textH = fy2-fy1; + /* I need at least one line for the choice and one for the buttons */ + if(y2-y1<selData.textH*2+3*border) + return(-1); + selData.xhot = -fx1; + selData.yhot = -fy2; + selData.x1 = x1+border; + selData.y1 = y1+border; + selData.y2 = y2-selData.textH-3*border; + selData.x2 = x2-2*border; + selData.pageH = (selData.y2-selData.y1)/selData.textH; + + i = rfbWidthOfString(font,okStr); + j = rfbWidthOfString(font,cancelStr); + selData.buttonWidth= k = 4*border+(i<j)?j:i; + selData.okBX = x1+(x2-x1-2*k)/3; + if(selData.okBX<x1+border) /* too narrow! */ + return(-1); + selData.cancelBX = x1+k+(x2-x1-2*k)*2/3; + selData.okX = selData.okBX+(k-i)/2; + selData.cancelX = selData.cancelBX+(k-j)/2; + selData.okY = y2-border; + + rfbUndrawCursor(rfbScreen); + frameBufferBackup = (char*)malloc(bpp*(x2-x1)*(y2-y1)); + + selData.state = SELECTING; + selData.screen = rfbScreen; + selData.font = font; + selData.list = list; + selData.colour = colour; + selData.backColour = backColour; + for(i=0;list[i];i++); + selData.selected = i; + selData.listSize = i; + selData.displayStart = i; + selData.lastButtons = 0; + selData.selChangedHook = selChangedHook; + + rfbScreen->screenData = &selData; + rfbScreen->kbdAddEvent = selKbdAddEvent; + rfbScreen->ptrAddEvent = selPtrAddEvent; + rfbScreen->getCursorPtr = selGetCursorPtr; + rfbScreen->displayHook = 0; + + /* backup screen */ + for(j=0;j<y2-y1;j++) + memcpy(frameBufferBackup+j*(x2-x1)*bpp, + rfbScreen->frameBuffer+j*rfbScreen->paddedWidthInBytes+x1*bpp, + (x2-x1)*bpp); + + /* paint list and buttons */ + rfbFillRect(rfbScreen,x1,y1,x2,y2,colour); + selPaintButtons(&selData,FALSE,FALSE); + selSelect(&selData,0); + + /* modal loop */ + while(selData.state == SELECTING) + rfbProcessEvents(rfbScreen,20000); + + /* copy back screen data */ + for(j=0;j<y2-y1;j++) + memcpy(rfbScreen->frameBuffer+j*rfbScreen->paddedWidthInBytes+x1*bpp, + frameBufferBackup+j*(x2-x1)*bpp, + (x2-x1)*bpp); + free(frameBufferBackup); + rfbMarkRectAsModified(rfbScreen,x1,y1,x2,y2); + rfbScreen->screenData = screenDataBackup; + rfbScreen->kbdAddEvent = kbdAddEventBackup; + rfbScreen->ptrAddEvent = ptrAddEventBackup; + rfbScreen->getCursorPtr = getCursorPtrBackup; + rfbScreen->displayHook = displayHookBackup; + + if(selData.state==CANCEL) + selData.selected=-1; + return(selData.selected); +} + diff --git a/krfb/libvncserver/sockets.c b/krfb/libvncserver/sockets.c new file mode 100644 index 00000000..69c4810a --- /dev/null +++ b/krfb/libvncserver/sockets.c @@ -0,0 +1,592 @@ +/* + * sockets.c - deal with TCP & UDP sockets. + * + * This code should be independent of any changes in the RFB protocol. It just + * deals with the X server scheduling stuff, calling rfbNewClientConnection and + * rfbProcessClientMessage to actually deal with the protocol. If a socket + * needs to be closed for any reason then rfbCloseClient should be called, and + * this in turn will call rfbClientConnectionGone. To make an active + * connection out, call rfbConnect - note that this does _not_ call + * rfbNewClientConnection. + * + * This file is divided into two types of function. Those beginning with + * "rfb" are specific to sockets using the RFB protocol. Those without the + * "rfb" prefix are more general socket routines (which are used by the http + * code). + * + * Thanks to Karl Hakimian for pointing out that some platforms return EAGAIN + * not EWOULDBLOCK. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include <sys/types.h> +#ifdef WIN32 +#pragma warning (disable: 4018 4761) +#define close closesocket +#define read(sock,buf,len) recv(sock,buf,len,0) +#define EWOULDBLOCK WSAEWOULDBLOCK +#define ETIMEDOUT WSAETIMEDOUT +#define write(sock,buf,len) send(sock,buf,len,0) +#else +#include <sys/time.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <netinet/tcp.h> +#include <netdb.h> +#include <unistd.h> +#include <arpa/inet.h> +#endif +#if defined(__osf__) +typedef int socklen_t; +#endif +#if defined(__linux__) && defined(NEED_TIMEVAL) +struct timeval +{ + long int tv_sec,tv_usec; +} +; +#endif +#include <fcntl.h> +#include <errno.h> + +#ifdef USE_LIBWRAP +#include <syslog.h> +#include <tcpd.h> +int allow_severity=LOG_INFO; +int deny_severity=LOG_WARNING; +#endif + +#include "rfb.h" + +/*#ifndef WIN32 +int max(int i,int j) { return(i<j?j:i); } +#endif +*/ + +int rfbMaxClientWait = 20000; /* time (ms) after which we decide client has + gone away - needed to stop us hanging */ + +/* + * rfbInitSockets sets up the TCP and UDP sockets to listen for RFB + * connections. It does nothing if called again. + */ + +void +rfbInitSockets(rfbScreenInfoPtr rfbScreen) +{ + if (rfbScreen->socketInitDone) + return; + + rfbScreen->socketInitDone = TRUE; + + if (rfbScreen->inetdSock != -1) { + const int one = 1; + +#ifndef WIN32 + if (fcntl(rfbScreen->inetdSock, F_SETFL, O_NONBLOCK) < 0) { + rfbLogPerror("fcntl"); + exit(1); + } +#endif + + if (setsockopt(rfbScreen->inetdSock, IPPROTO_TCP, TCP_NODELAY, + (char *)&one, sizeof(one)) < 0) { + rfbLogPerror("setsockopt"); + exit(1); + } + + FD_ZERO(&(rfbScreen->allFds)); + FD_SET(rfbScreen->inetdSock, &(rfbScreen->allFds)); + rfbScreen->maxFd = rfbScreen->inetdSock; + return; + } + + if(rfbScreen->autoPort) { + int i; + rfbLog("Autoprobing TCP port \n"); + + for (i = 5900; i < 6000; i++) { + if ((rfbScreen->rfbListenSock = ListenOnTCPPort(i)) >= 0) { + rfbScreen->rfbPort = i; + break; + } + } + + if (i >= 6000) { + rfbLogPerror("Failure autoprobing"); + exit(1); + } + + rfbLog("Autoprobing selected port %d\n", rfbScreen->rfbPort); + FD_ZERO(&(rfbScreen->allFds)); + FD_SET(rfbScreen->rfbListenSock, &(rfbScreen->allFds)); + rfbScreen->maxFd = rfbScreen->rfbListenSock; + } + else if(rfbScreen->rfbPort>0) { + rfbLog("Listening for VNC connections on TCP port %d\n", rfbScreen->rfbPort); + + if ((rfbScreen->rfbListenSock = ListenOnTCPPort(rfbScreen->rfbPort)) < 0) { + rfbLogPerror("ListenOnTCPPort"); + exit(1); + } + + FD_ZERO(&(rfbScreen->allFds)); + FD_SET(rfbScreen->rfbListenSock, &(rfbScreen->allFds)); + rfbScreen->maxFd = rfbScreen->rfbListenSock; + } + + if (rfbScreen->udpPort != 0) { + rfbLog("rfbInitSockets: listening for input on UDP port %d\n",rfbScreen->udpPort); + + if ((rfbScreen->udpSock = ListenOnUDPPort(rfbScreen->udpPort)) < 0) { + rfbLogPerror("ListenOnUDPPort"); + exit(1); + } + FD_SET(rfbScreen->udpSock, &(rfbScreen->allFds)); + rfbScreen->maxFd = max((int)rfbScreen->udpSock,rfbScreen->maxFd); + } +} + + +/* + * rfbCheckFds is called from ProcessInputEvents to check for input on the RFB + * socket(s). If there is input to process, the appropriate function in the + * RFB server code will be called (rfbNewClientConnection, + * rfbProcessClientMessage, etc). + */ + +void +rfbCheckFds(rfbScreenInfoPtr rfbScreen,long usec) +{ + int nfds; + fd_set fds; + struct timeval tv; + struct sockaddr_in addr; + size_t addrlen = sizeof(addr); + char buf[6]; + const int one = 1; + int sock; + rfbClientIteratorPtr i; + rfbClientPtr cl; + + if (!rfbScreen->inetdInitDone && rfbScreen->inetdSock != -1) { + rfbNewClientConnection(rfbScreen,rfbScreen->inetdSock); + rfbScreen->inetdInitDone = TRUE; + } + + memcpy((char *)&fds, (char *)&(rfbScreen->allFds), sizeof(fd_set)); + tv.tv_sec = 0; + tv.tv_usec = usec; + nfds = select(rfbScreen->maxFd + 1, &fds, NULL, NULL /* &fds */, &tv); + if (nfds == 0) { + return; + } + if (nfds < 0) { +#ifdef WIN32 + errno = WSAGetLastError(); +#endif + rfbLogPerror("rfbCheckFds: select"); + return; + } + + if (rfbScreen->rfbListenSock != -1 && FD_ISSET(rfbScreen->rfbListenSock, &fds)) { + + if ((sock = accept(rfbScreen->rfbListenSock, + (struct sockaddr *)&addr, &addrlen)) < 0) { + rfbLogPerror("rfbCheckFds: accept"); + return; + } + +#ifndef WIN32 + if (fcntl(sock, F_SETFL, O_NONBLOCK) < 0) { + rfbLogPerror("rfbCheckFds: fcntl"); + close(sock); + return; + } +#endif + + if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, + (char *)&one, sizeof(one)) < 0) { + rfbLogPerror("rfbCheckFds: setsockopt"); + close(sock); + return; + } + +#ifdef USE_LIBWRAP + if(!hosts_ctl("vnc",STRING_UNKNOWN,inet_ntoa(addr.sin_addr), + STRING_UNKNOWN)) { + rfbLog("Rejected connection from client %s\n", + inet_ntoa(addr.sin_addr)); + close(sock); + return; + } +#endif + + rfbLog("Got connection from client %s\n", inet_ntoa(addr.sin_addr)); + + rfbNewClient(rfbScreen,sock); + + FD_CLR(rfbScreen->rfbListenSock, &fds); + if (--nfds == 0) + return; + } + + if ((rfbScreen->udpSock != -1) && FD_ISSET(rfbScreen->udpSock, &fds)) { + if(!rfbScreen->udpClient) + rfbNewUDPClient(rfbScreen); + if (recvfrom(rfbScreen->udpSock, buf, 1, MSG_PEEK, + (struct sockaddr *)&addr, &addrlen) < 0) { + rfbLogPerror("rfbCheckFds: UDP: recvfrom"); + rfbDisconnectUDPSock(rfbScreen); + rfbScreen->udpSockConnected = FALSE; + } else { + if (!rfbScreen->udpSockConnected || + (memcmp(&addr, &rfbScreen->udpRemoteAddr, addrlen) != 0)) + { + /* new remote end */ + rfbLog("rfbCheckFds: UDP: got connection\n"); + + memcpy(&rfbScreen->udpRemoteAddr, &addr, addrlen); + rfbScreen->udpSockConnected = TRUE; + + if (connect(rfbScreen->udpSock, + (struct sockaddr *)&addr, addrlen) < 0) { + rfbLogPerror("rfbCheckFds: UDP: connect"); + rfbDisconnectUDPSock(rfbScreen); + return; + } + + rfbNewUDPConnection(rfbScreen,rfbScreen->udpSock); + } + + rfbProcessUDPInput(rfbScreen); + } + + FD_CLR(rfbScreen->udpSock, &fds); + if (--nfds == 0) + return; + } + + i = rfbGetClientIterator(rfbScreen); + while((cl = rfbClientIteratorNext(i))) { + if (cl->onHold) + continue; + if (FD_ISSET(cl->sock, &fds) && FD_ISSET(cl->sock, &(rfbScreen->allFds))) + rfbProcessClientMessage(cl); + } + rfbReleaseClientIterator(i); +} + + +void +rfbDisconnectUDPSock(rfbScreenInfoPtr rfbScreen) +{ + rfbScreen->udpSockConnected = FALSE; +} + + + +void +rfbCloseClient(cl) + rfbClientPtr cl; +{ + LOCK(cl->updateMutex); + if (cl->sock != -1) { + FD_CLR(cl->sock,&(cl->screen->allFds)); + shutdown(cl->sock,SHUT_RDWR); + close(cl->sock); + cl->sock = -1; + } + TSIGNAL(cl->updateCond); + UNLOCK(cl->updateMutex); +} + + +/* + * rfbConnect is called to make a connection out to a given TCP address. + */ + +int +rfbConnect(rfbScreen, host, port) + rfbScreenInfoPtr rfbScreen; + char *host; + int port; +{ + int sock; + int one = 1; + + rfbLog("Making connection to client on host %s port %d\n", + host,port); + + if ((sock = ConnectToTcpAddr(host, port)) < 0) { + rfbLogPerror("connection failed"); + return -1; + } + +#ifndef WIN32 + if (fcntl(sock, F_SETFL, O_NONBLOCK) < 0) { + rfbLogPerror("fcntl failed"); + close(sock); + return -1; + } +#endif + + if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, + (char *)&one, sizeof(one)) < 0) { + rfbLogPerror("setsockopt failed"); + close(sock); + return -1; + } + + /* AddEnabledDevice(sock); */ + FD_SET(sock, &rfbScreen->allFds); + rfbScreen->maxFd = max(sock,rfbScreen->maxFd); + + return sock; +} + +/* + * ReadExact reads an exact number of bytes from a client. Returns 1 if + * those bytes have been read, 0 if the other end has closed, or -1 if an error + * occurred (errno is set to ETIMEDOUT if it timed out). + * timeout is the timeout in ms, 0 for no timeout. + */ + +int +ReadExactTimeout(rfbClientPtr cl, char* buf, int len, int timeout) +{ + int sock = cl->sock; + int n; + fd_set fds; + struct timeval tv; + int to = 20000; + if (timeout) + to = timeout; + + while (len > 0) { + n = read(sock, buf, len); + + if (n > 0) { + + buf += n; + len -= n; + + } else if (n == 0) { + + return 0; + + } else { +#ifdef WIN32 + errno = WSAGetLastError(); +#endif + if (errno != EWOULDBLOCK && errno != EAGAIN) { + return n; + } + + FD_ZERO(&fds); + FD_SET(sock, &fds); + tv.tv_sec = to / 1000; + tv.tv_usec = (to % 1000) * 1000; + n = select(sock+1, &fds, NULL, &fds, &tv); + if (n < 0) { + rfbLogPerror("ReadExact: select"); + return n; + } + if ((n == 0) && timeout) { + errno = ETIMEDOUT; + return -1; + } + } + } + return 1; +} + +int ReadExact(rfbClientPtr cl,char* buf,int len) +{ + return ReadExactTimeout(cl, buf, len, 0); +} + +/* + * WriteExact writes an exact number of bytes to a client. Returns 1 if + * those bytes have been written, or -1 if an error occurred (errno is set to + * ETIMEDOUT if it timed out). + */ + +int +WriteExact(cl, buf, len) + rfbClientPtr cl; + const char *buf; + int len; +{ + int sock = cl->sock; + int n; + fd_set fds; + struct timeval tv; + int totalTimeWaited = 0; + + LOCK(cl->outputMutex); + while (len > 0) { + n = write(sock, buf, len); + + if (n > 0) { + + buf += n; + len -= n; + + } else if (n == 0) { + + rfbLog("WriteExact: write returned 0?\n"); + exit(1); + + } else { +#ifdef WIN32 + errno = WSAGetLastError(); +#endif + if (errno != EWOULDBLOCK && errno != EAGAIN) { + UNLOCK(cl->outputMutex); + return n; + } + + /* Retry every 5 seconds until we exceed rfbMaxClientWait. We + need to do this because select doesn't necessarily return + immediately when the other end has gone away */ + + FD_ZERO(&fds); + FD_SET(sock, &fds); + tv.tv_sec = 5; + tv.tv_usec = 0; + n = select(sock+1, NULL, &fds, NULL /* &fds */, &tv); + if (n < 0) { + rfbLogPerror("WriteExact: select"); + UNLOCK(cl->outputMutex); + return n; + } + if (n == 0) { + totalTimeWaited += 5000; + if (totalTimeWaited >= rfbMaxClientWait) { + errno = ETIMEDOUT; + UNLOCK(cl->outputMutex); + return -1; + } + } else { + totalTimeWaited = 0; + } + } + } + UNLOCK(cl->outputMutex); + return 1; +} + +int +ListenOnTCPPort(port) + int port; +{ + struct sockaddr_in addr; + int sock; + int one = 1; + + addr.sin_family = AF_INET; + addr.sin_port = htons(port); + /* addr.sin_addr.s_addr = interface.s_addr; */ + addr.sin_addr.s_addr = INADDR_ANY; + + if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { + return -1; + } + if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, + (char *)&one, sizeof(one)) < 0) { + close(sock); + return -1; + } + if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) { + close(sock); + return -1; + } + if (listen(sock, 5) < 0) { + close(sock); + return -1; + } + + return sock; +} + +int +ConnectToTcpAddr(host, port) + char *host; + int port; +{ + struct hostent *hp; + int sock; + struct sockaddr_in addr; + + addr.sin_family = AF_INET; + addr.sin_port = htons(port); + + if ((addr.sin_addr.s_addr = inet_addr(host)) == INADDR_NONE) + { + if (!(hp = gethostbyname(host))) { + errno = EINVAL; + return -1; + } + addr.sin_addr.s_addr = *(unsigned long *)hp->h_addr; + } + + if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { + return -1; + } + + if (connect(sock, (struct sockaddr *)&addr, (sizeof(addr))) < 0) { + close(sock); + return -1; + } + + return sock; +} + +int +ListenOnUDPPort(port) + int port; +{ + struct sockaddr_in addr; + int sock; + int one = 1; + + addr.sin_family = AF_INET; + addr.sin_port = htons(port); + /* addr.sin_addr.s_addr = interface.s_addr; */ + addr.sin_addr.s_addr = INADDR_ANY; + + if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { + return -1; + } + if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, + (char *)&one, sizeof(one)) < 0) { + return -1; + } + if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) { + return -1; + } + + return sock; +} diff --git a/krfb/libvncserver/sraRegion.c b/krfb/libvncserver/sraRegion.c new file mode 100644 index 00000000..315ce5b1 --- /dev/null +++ b/krfb/libvncserver/sraRegion.c @@ -0,0 +1,889 @@ +/* -=- sraRegion.c + * Copyright (c) 2001 James "Wez" Weatherall, Johannes E. Schindelin + * + * A general purpose region clipping library + * Only deals with rectangular regions, though. + */ + +#include "rfb.h" +#include "sraRegion.h" + +#include <stdlib.h> +#include <stdio.h> + +/* -=- Internal Span structure */ + +struct sraRegion; + +typedef struct sraSpan { + struct sraSpan *_next; + struct sraSpan *_prev; + int start; + int end; + struct sraRegion *subspan; +} sraSpan; + +typedef struct sraRegion { + sraSpan front; + sraSpan back; +} sraSpanList; + +/* -=- Span routines */ + +sraSpanList *sraSpanListDup(const sraSpanList *src); +void sraSpanListDestroy(sraSpanList *list); + +static sraSpan * +sraSpanCreate(int start, int end, const sraSpanList *subspan) { + sraSpan *item = (sraSpan*)malloc(sizeof(sraSpan)); + item->_next = item->_prev = NULL; + item->start = start; + item->end = end; + item->subspan = sraSpanListDup(subspan); + return item; +} + +static sraSpan * +sraSpanDup(const sraSpan *src) { + sraSpan *span; + if (!src) return NULL; + span = sraSpanCreate(src->start, src->end, src->subspan); + return span; +} + +static void +sraSpanInsertAfter(sraSpan *newspan, sraSpan *after) { + newspan->_next = after->_next; + newspan->_prev = after; + after->_next->_prev = newspan; + after->_next = newspan; +} + +static void +sraSpanInsertBefore(sraSpan *newspan, sraSpan *before) { + newspan->_next = before; + newspan->_prev = before->_prev; + before->_prev->_next = newspan; + before->_prev = newspan; +} + +static void +sraSpanRemove(sraSpan *span) { + span->_prev->_next = span->_next; + span->_next->_prev = span->_prev; +} + +static void +sraSpanDestroy(sraSpan *span) { + if (span->subspan) sraSpanListDestroy(span->subspan); + free(span); +} + +#ifdef DEBUG +static void +sraSpanCheck(const sraSpan *span, const char *text) { + /* Check the span is valid! */ + if (span->start == span->end) { + printf(text); + printf(":%d-%d\n", span->start, span->end); + } +} +#endif + +/* -=- SpanList routines */ + +static void sraSpanPrint(const sraSpan *s); + +static void +sraSpanListPrint(const sraSpanList *l) { + sraSpan *curr; + if (!l) { + printf("NULL"); + return; + } + curr = l->front._next; + printf("["); + while (curr != &(l->back)) { + sraSpanPrint(curr); + curr = curr->_next; + } + printf("]"); +} + +void +sraSpanPrint(const sraSpan *s) { + printf("(%d-%d)", (s->start), (s->end)); + if (s->subspan) + sraSpanListPrint(s->subspan); +} + +static sraSpanList * +sraSpanListCreate(void) { + sraSpanList *item = (sraSpanList*)malloc(sizeof(sraSpanList)); + item->front._next = &(item->back); + item->front._prev = NULL; + item->back._prev = &(item->front); + item->back._next = NULL; + return item; +} + +sraSpanList * +sraSpanListDup(const sraSpanList *src) { + sraSpanList *newlist; + sraSpan *newspan, *curr; + + if (!src) return NULL; + newlist = sraSpanListCreate(); + curr = src->front._next; + while (curr != &(src->back)) { + newspan = sraSpanDup(curr); + sraSpanInsertBefore(newspan, &(newlist->back)); + curr = curr->_next; + } + + return newlist; +} + +void +sraSpanListDestroy(sraSpanList *list) { + sraSpan *curr, *next; + while (list->front._next != &(list->back)) { + curr = list->front._next; + next = curr->_next; + sraSpanRemove(curr); + sraSpanDestroy(curr); + curr = next; + } + free(list); +} + +static void +sraSpanListMakeEmpty(sraSpanList *list) { + sraSpan *curr, *next; + while (list->front._next != &(list->back)) { + curr = list->front._next; + next = curr->_next; + sraSpanRemove(curr); + sraSpanDestroy(curr); + curr = next; + } + list->front._next = &(list->back); + list->front._prev = NULL; + list->back._prev = &(list->front); + list->back._next = NULL; +} + +static Bool +sraSpanListEqual(const sraSpanList *s1, const sraSpanList *s2) { + sraSpan *sp1, *sp2; + + if (!s1) { + if (!s2) { + return 1; + } else { + printf("sraSpanListEqual:incompatible spans (only one NULL!)\n"); + return FALSE; + } + } + + sp1 = s1->front._next; + sp2 = s2->front._next; + while ((sp1 != &(s1->back)) && + (sp2 != &(s2->back))) { + if ((sp1->start != sp2->start) || + (sp1->end != sp2->end) || + (!sraSpanListEqual(sp1->subspan, sp2->subspan))) { + return 0; + } + sp1 = sp1->_next; + sp2 = sp2->_next; + } + + if ((sp1 == &(s1->back)) && (sp2 == &(s2->back))) { + return 1; + } else { + return 0; + } +} + +static Bool +sraSpanListEmpty(const sraSpanList *list) { + return (list->front._next == &(list->back)); +} + +static unsigned long +sraSpanListCount(const sraSpanList *list) { + sraSpan *curr = list->front._next; + unsigned long count = 0; + while (curr != &(list->back)) { + if (curr->subspan) { + count += sraSpanListCount(curr->subspan); + } else { + count += 1; + } + curr = curr->_next; + } + return count; +} + +static void +sraSpanMergePrevious(sraSpan *dest) { + sraSpan *prev = dest->_prev; + + while ((prev->_prev) && + (prev->end == dest->start) && + (sraSpanListEqual(prev->subspan, dest->subspan))) { + /* + printf("merge_prev:"); + sraSpanPrint(prev); + printf(" & "); + sraSpanPrint(dest); + printf("\n"); + */ + dest->start = prev->start; + sraSpanRemove(prev); + sraSpanDestroy(prev); + prev = dest->_prev; + } +} + +static void +sraSpanMergeNext(sraSpan *dest) { + sraSpan *next = dest->_next; + while ((next->_next) && + (next->start == dest->end) && + (sraSpanListEqual(next->subspan, dest->subspan))) { +/* + printf("merge_next:"); + sraSpanPrint(dest); + printf(" & "); + sraSpanPrint(next); + printf("\n"); + */ + dest->end = next->end; + sraSpanRemove(next); + sraSpanDestroy(next); + next = dest->_next; + } +} + +static void +sraSpanListOr(sraSpanList *dest, const sraSpanList *src) { + sraSpan *d_curr, *s_curr; + int s_start, s_end; + + if (!dest) { + if (!src) { + return; + } else { + printf("sraSpanListOr:incompatible spans (only one NULL!)\n"); + return; + } + } + + d_curr = dest->front._next; + s_curr = src->front._next; + s_start = s_curr->start; + s_end = s_curr->end; + while (s_curr != &(src->back)) { + + /* - If we are at end of destination list OR + If the new span comes before the next destination one */ + if ((d_curr == &(dest->back)) || + (d_curr->start >= s_end)) { + /* - Add the span */ + sraSpanInsertBefore(sraSpanCreate(s_start, s_end, + s_curr->subspan), + d_curr); + if (d_curr != &(dest->back)) + sraSpanMergePrevious(d_curr); + s_curr = s_curr->_next; + s_start = s_curr->start; + s_end = s_curr->end; + } else { + + /* - If the new span overlaps the existing one */ + if ((s_start < d_curr->end) && + (s_end > d_curr->start)) { + + /* - Insert new span before the existing destination one? */ + if (s_start < d_curr->start) { + sraSpanInsertBefore(sraSpanCreate(s_start, + d_curr->start, + s_curr->subspan), + d_curr); + sraSpanMergePrevious(d_curr); + } + + /* Split the existing span if necessary */ + if (s_end < d_curr->end) { + sraSpanInsertAfter(sraSpanCreate(s_end, + d_curr->end, + d_curr->subspan), + d_curr); + d_curr->end = s_end; + } + if (s_start > d_curr->start) { + sraSpanInsertBefore(sraSpanCreate(d_curr->start, + s_start, + d_curr->subspan), + d_curr); + d_curr->start = s_start; + } + + /* Recursively OR subspans */ + sraSpanListOr(d_curr->subspan, s_curr->subspan); + + /* Merge this span with previous or next? */ + if (d_curr->_prev != &(dest->front)) + sraSpanMergePrevious(d_curr); + if (d_curr->_next != &(dest->back)) + sraSpanMergeNext(d_curr); + + /* Move onto the next pair to compare */ + if (s_end > d_curr->end) { + s_start = d_curr->end; + d_curr = d_curr->_next; + } else { + s_curr = s_curr->_next; + s_start = s_curr->start; + s_end = s_curr->end; + } + } else { + /* - No overlap. Move to the next destination span */ + d_curr = d_curr->_next; + } + } + } +} + +static Bool +sraSpanListAnd(sraSpanList *dest, const sraSpanList *src) { + sraSpan *d_curr, *s_curr, *d_next; + + if (!dest) { + if (!src) { + return 1; + } else { + printf("sraSpanListAnd:incompatible spans (only one NULL!)\n"); + return FALSE; + } + } + + d_curr = dest->front._next; + s_curr = src->front._next; + while ((s_curr != &(src->back)) && (d_curr != &(dest->back))) { + + /* - If we haven't reached a destination span yet then move on */ + if (d_curr->start >= s_curr->end) { + s_curr = s_curr->_next; + continue; + } + + /* - If we are beyond the current destination span then remove it */ + if (d_curr->end <= s_curr->start) { + sraSpan *next = d_curr->_next; + sraSpanRemove(d_curr); + sraSpanDestroy(d_curr); + d_curr = next; + continue; + } + + /* - If we partially overlap a span then split it up or remove bits */ + if (s_curr->start > d_curr->start) { + /* - The top bit of the span does not match */ + d_curr->start = s_curr->start; + } + if (s_curr->end < d_curr->end) { + /* - The end of the span does not match */ + sraSpanInsertAfter(sraSpanCreate(s_curr->end, + d_curr->end, + d_curr->subspan), + d_curr); + d_curr->end = s_curr->end; + } + + /* - Now recursively process the affected span */ + if (!sraSpanListAnd(d_curr->subspan, s_curr->subspan)) { + /* - The destination subspan is now empty, so we should remove it */ + sraSpan *next = d_curr->_next; + sraSpanRemove(d_curr); + sraSpanDestroy(d_curr); + d_curr = next; + } else { + /* Merge this span with previous or next? */ + if (d_curr->_prev != &(dest->front)) + sraSpanMergePrevious(d_curr); + + /* - Move on to the next span */ + d_next = d_curr; + if (s_curr->end >= d_curr->end) { + d_next = d_curr->_next; + } + if (s_curr->end <= d_curr->end) { + s_curr = s_curr->_next; + } + d_curr = d_next; + } + } + + while (d_curr != &(dest->back)) { + sraSpan *next = d_curr->_next; + sraSpanRemove(d_curr); + sraSpanDestroy(d_curr); + d_curr=next; + } + + return !sraSpanListEmpty(dest); +} + +static Bool +sraSpanListSubtract(sraSpanList *dest, const sraSpanList *src) { + sraSpan *d_curr, *s_curr; + + if (!dest) { + if (!src) { + return 1; + } else { + printf("sraSpanListSubtract:incompatible spans (only one NULL!)\n"); + return FALSE; + } + } + + d_curr = dest->front._next; + s_curr = src->front._next; + while ((s_curr != &(src->back)) && (d_curr != &(dest->back))) { + + /* - If we haven't reached a destination span yet then move on */ + if (d_curr->start >= s_curr->end) { + s_curr = s_curr->_next; + continue; + } + + /* - If we are beyond the current destination span then skip it */ + if (d_curr->end <= s_curr->start) { + d_curr = d_curr->_next; + continue; + } + + /* - If we partially overlap the current span then split it up */ + if (s_curr->start > d_curr->start) { + sraSpanInsertBefore(sraSpanCreate(d_curr->start, + s_curr->start, + d_curr->subspan), + d_curr); + d_curr->start = s_curr->start; + } + if (s_curr->end < d_curr->end) { + sraSpanInsertAfter(sraSpanCreate(s_curr->end, + d_curr->end, + d_curr->subspan), + d_curr); + d_curr->end = s_curr->end; + } + + /* - Now recursively process the affected span */ + if ((!d_curr->subspan) || !sraSpanListSubtract(d_curr->subspan, s_curr->subspan)) { + /* - The destination subspan is now empty, so we should remove it */ + sraSpan *next = d_curr->_next; + sraSpanRemove(d_curr); + sraSpanDestroy(d_curr); + d_curr = next; + } else { + /* Merge this span with previous or next? */ + if (d_curr->_prev != &(dest->front)) + sraSpanMergePrevious(d_curr); + if (d_curr->_next != &(dest->back)) + sraSpanMergeNext(d_curr); + + /* - Move on to the next span */ + if (s_curr->end > d_curr->end) { + d_curr = d_curr->_next; + } else { + s_curr = s_curr->_next; + } + } + } + + return !sraSpanListEmpty(dest); +} + +/* -=- Region routines */ + +sraRegion * +sraRgnCreate() { + return (sraRegion*)sraSpanListCreate(); +} + +sraRegion * +sraRgnCreateRect(int x1, int y1, int x2, int y2) { + sraSpanList *vlist, *hlist; + sraSpan *vspan, *hspan; + + /* - Build the horizontal portion of the span */ + hlist = sraSpanListCreate(); + hspan = sraSpanCreate(x1, x2, NULL); + sraSpanInsertAfter(hspan, &(hlist->front)); + + /* - Build the vertical portion of the span */ + vlist = sraSpanListCreate(); + vspan = sraSpanCreate(y1, y2, hlist); + sraSpanInsertAfter(vspan, &(vlist->front)); + + sraSpanListDestroy(hlist); + + return (sraRegion*)vlist; +} + +sraRegion * +sraRgnCreateRgn(const sraRegion *src) { + return (sraRegion*)sraSpanListDup((sraSpanList*)src); +} + +void +sraRgnDestroy(sraRegion *rgn) { + sraSpanListDestroy((sraSpanList*)rgn); +} + +void +sraRgnMakeEmpty(sraRegion *rgn) { + sraSpanListMakeEmpty((sraSpanList*)rgn); +} + +/* -=- Boolean Region ops */ + +Bool +sraRgnAnd(sraRegion *dst, const sraRegion *src) { + return sraSpanListAnd((sraSpanList*)dst, (sraSpanList*)src); +} + +void +sraRgnOr(sraRegion *dst, const sraRegion *src) { + sraSpanListOr((sraSpanList*)dst, (sraSpanList*)src); +} + +Bool +sraRgnSubtract(sraRegion *dst, const sraRegion *src) { + return sraSpanListSubtract((sraSpanList*)dst, (sraSpanList*)src); +} + +void +sraRgnOffset(sraRegion *dst, int dx, int dy) { + sraSpan *vcurr, *hcurr; + + vcurr = ((sraSpanList*)dst)->front._next; + while (vcurr != &(((sraSpanList*)dst)->back)) { + vcurr->start += dy; + vcurr->end += dy; + + hcurr = vcurr->subspan->front._next; + while (hcurr != &(vcurr->subspan->back)) { + hcurr->start += dx; + hcurr->end += dx; + hcurr = hcurr->_next; + } + + vcurr = vcurr->_next; + } +} + +sraRegion *sraRgnBBox(const sraRegion *src) { + int xmin=((unsigned int)(int)-1)>>1,ymin=xmin,xmax=1-xmin,ymax=xmax; + sraSpan *vcurr, *hcurr; + + if(!src) + return sraRgnCreate(); + + vcurr = ((sraSpanList*)src)->front._next; + while (vcurr != &(((sraSpanList*)src)->back)) { + if(vcurr->start<ymin) + ymin=vcurr->start; + if(vcurr->end>ymax) + ymax=vcurr->end; + + hcurr = vcurr->subspan->front._next; + while (hcurr != &(vcurr->subspan->back)) { + if(hcurr->start<xmin) + xmin=hcurr->start; + if(hcurr->end>xmax) + xmax=hcurr->end; + hcurr = hcurr->_next; + } + + vcurr = vcurr->_next; + } + + if(xmax<xmin || ymax<ymin) + return sraRgnCreate(); + + return sraRgnCreateRect(xmin,ymin,xmax,ymax); +} + +Bool +sraRgnPopRect(sraRegion *rgn, sraRect *rect, unsigned long flags) { + sraSpan *vcurr, *hcurr; + sraSpan *vend, *hend; + Bool right2left = flags & 2; + Bool bottom2top = flags & 1; + + /* - Pick correct order */ + if (bottom2top) { + vcurr = ((sraSpanList*)rgn)->back._prev; + vend = &(((sraSpanList*)rgn)->front); + } else { + vcurr = ((sraSpanList*)rgn)->front._next; + vend = &(((sraSpanList*)rgn)->back); + } + + if (vcurr != vend) { + rect->y1 = vcurr->start; + rect->y2 = vcurr->end; + + /* - Pick correct order */ + if (right2left) { + hcurr = vcurr->subspan->back._prev; + hend = &(vcurr->subspan->front); + } else { + hcurr = vcurr->subspan->front._next; + hend = &(vcurr->subspan->back); + } + + if (hcurr != hend) { + rect->x1 = hcurr->start; + rect->x2 = hcurr->end; + + sraSpanRemove(hcurr); + sraSpanDestroy(hcurr); + + if (sraSpanListEmpty(vcurr->subspan)) { + sraSpanRemove(vcurr); + sraSpanDestroy(vcurr); + } + +#if 0 + printf("poprect:(%dx%d)-(%dx%d)\n", + rect->x1, rect->y1, rect->x2, rect->y2); +#endif + return 1; + } + } + + return 0; +} + +unsigned long +sraRgnCountRects(const sraRegion *rgn) { + unsigned long count = sraSpanListCount((sraSpanList*)rgn); + return count; +} + +Bool +sraRgnEmpty(const sraRegion *rgn) { + return sraSpanListEmpty((sraSpanList*)rgn); +} + +/* iterator stuff */ +sraRectangleIterator *sraRgnGetIterator(sraRegion *s) +{ + /* these values have to be multiples of 4 */ +#define DEFSIZE 4 +#define DEFSTEP 8 + sraRectangleIterator *i = + (sraRectangleIterator*)malloc(sizeof(sraRectangleIterator)); + if(!i) + return NULL; + + /* we have to recurse eventually. So, the first sPtr is the pointer to + the sraSpan in the first level. the second sPtr is the pointer to + the sraRegion.back. The third and fourth sPtr are for the second + recursion level and so on. */ + i->sPtrs = (sraSpan**)malloc(sizeof(sraSpan*)*DEFSIZE); + if(!i->sPtrs) { + free(i); + return NULL; + } + i->ptrSize = DEFSIZE; + i->sPtrs[0] = &(s->front); + i->sPtrs[1] = &(s->back); + i->ptrPos = 0; + i->reverseX = 0; + i->reverseY = 0; + return i; +} + +sraRectangleIterator *sraRgnGetReverseIterator(sraRegion *s,Bool reverseX,Bool reverseY) +{ + sraRectangleIterator *i = sraRgnGetIterator(s); + if(reverseY) { + i->sPtrs[1] = &(s->front); + i->sPtrs[0] = &(s->back); + } + i->reverseX = reverseX; + i->reverseY = reverseY; + return(i); +} + +static Bool sraReverse(sraRectangleIterator *i) +{ + return( ((i->ptrPos&2) && i->reverseX) || + (!(i->ptrPos&2) && i->reverseY)); +} + +static sraSpan* sraNextSpan(sraRectangleIterator *i) +{ + if(sraReverse(i)) + return(i->sPtrs[i->ptrPos]->_prev); + else + return(i->sPtrs[i->ptrPos]->_next); +} + +Bool sraRgnIteratorNext(sraRectangleIterator* i,sraRect* r) +{ + /* is the subspan finished? */ + while(sraNextSpan(i) == i->sPtrs[i->ptrPos+1]) { + i->ptrPos -= 2; + if(i->ptrPos < 0) /* the end */ + return(0); + } + + i->sPtrs[i->ptrPos] = sraNextSpan(i); + + /* is this a new subspan? */ + while(i->sPtrs[i->ptrPos]->subspan) { + if(i->ptrPos+2 > i->ptrSize) { /* array is too small */ + i->ptrSize += DEFSTEP; + i->sPtrs = (sraSpan**)realloc(i->sPtrs, sizeof(sraSpan*)*i->ptrSize); + } + i->ptrPos =+ 2; + if(sraReverse(i)) { + i->sPtrs[i->ptrPos] = i->sPtrs[i->ptrPos-2]->subspan->back._prev; + i->sPtrs[i->ptrPos+1] = &(i->sPtrs[i->ptrPos-2]->subspan->front); + } else { + i->sPtrs[i->ptrPos] = i->sPtrs[i->ptrPos-2]->subspan->front._next; + i->sPtrs[i->ptrPos+1] = &(i->sPtrs[i->ptrPos-2]->subspan->back); + } + } + + if((i->ptrPos%4)!=2) { + printf("sraRgnIteratorNext: offset is wrong (%d%%4!=2)\n",i->ptrPos); + return FALSE; + } + + r->y1 = i->sPtrs[i->ptrPos-2]->start; + r->y2 = i->sPtrs[i->ptrPos-2]->end; + r->x1 = i->sPtrs[i->ptrPos]->start; + r->x2 = i->sPtrs[i->ptrPos]->end; + + return(-1); +} + +void sraRgnReleaseIterator(sraRectangleIterator* i) +{ + free(i->sPtrs); + free(i); +} + +void +sraRgnPrint(const sraRegion *rgn) { + sraSpanListPrint((sraSpanList*)rgn); +} + +Bool +sraClipRect(int *x, int *y, int *w, int *h, + int cx, int cy, int cw, int ch) { + if (*x < cx) { + *w -= (cx-*x); + *x = cx; + } + if (*y < cy) { + *h -= (cy-*y); + *y = cy; + } + if (*x+*w > cx+cw) { + *w = (cx+cw)-*x; + } + if (*y+*h > cy+ch) { + *h = (cy+ch)-*y; + } + return (*w>0) && (*h>0); +} + +Bool +sraClipRect2(int *x, int *y, int *x2, int *y2, + int cx, int cy, int cx2, int cy2) { + if (*x < cx) + *x = cx; + if (*y < cy) + *y = cy; + if (*x >= cx2) + *x = cx2-1; + if (*y >= cy2) + *y = cy2-1; + if (*x2 <= cx) + *x2 = cx+1; + if (*y2 <= cy) + *y2 = cy+1; + if (*x2 > cx2) + *x2 = cx2; + if (*y2 > cy2) + *y2 = cy2; + return (*x2>*x) && (*y2>*y); +} + +/* test */ + +#ifdef SRA_TEST +/* pipe the output to sort|uniq -u and you'll get the errors. */ +int main(int argc, char** argv) +{ + sraRegionPtr region, region1, region2; + sraRectangleIterator* i; + sraRect rect; + Bool b; + + region = sraRgnCreateRect(10, 10, 600, 300); + region1 = sraRgnCreateRect(40, 50, 350, 200); + region2 = sraRgnCreateRect(0, 0, 20, 40); + + sraRgnPrint(region); + printf("\n[(10-300)[(10-600)]]\n\n"); + + b = sraRgnSubtract(region, region1); + printf("%s ",b?"true":"false"); + sraRgnPrint(region); + printf("\ntrue [(10-50)[(10-600)](50-200)[(10-40)(350-600)](200-300)[(10-600)]]\n\n"); + + sraRgnOr(region, region2); + printf("%ld\n6\n\n", sraRgnCountRects(region)); + + i = sraRgnGetIterator(region); + while(sraRgnIteratorNext(i, &rect)) + printf("%dx%d+%d+%d ", + rect.x2-rect.x1,rect.y2-rect.y1, + rect.x1,rect.y1); + sraRgnReleaseIterator(i); + printf("\n20x10+0+0 600x30+0+10 590x10+10+40 30x150+10+50 250x150+350+50 590x100+10+200 \n\n"); + + i = sraRgnGetReverseIterator(region,1,0); + while(sraRgnIteratorNext(i, &rect)) + printf("%dx%d+%d+%d ", + rect.x2-rect.x1,rect.y2-rect.y1, + rect.x1,rect.y1); + sraRgnReleaseIterator(i); + printf("\n20x10+0+0 600x30+0+10 590x10+10+40 250x150+350+50 30x150+10+50 590x100+10+200 \n\n"); + + i = sraRgnGetReverseIterator(region,1,1); + while(sraRgnIteratorNext(i, &rect)) + printf("%dx%d+%d+%d ", + rect.x2-rect.x1,rect.y2-rect.y1, + rect.x1,rect.y1); + sraRgnReleaseIterator(i); + printf("\n590x100+10+200 250x150+350+50 30x150+10+50 590x10+10+40 600x30+0+10 20x10+0+0 \n\n"); + + sraRgnDestroy(region); + sraRgnDestroy(region1); + sraRgnDestroy(region2); + + return(0); +} +#endif diff --git a/krfb/libvncserver/sraRegion.h b/krfb/libvncserver/sraRegion.h new file mode 100644 index 00000000..9526ac37 --- /dev/null +++ b/krfb/libvncserver/sraRegion.h @@ -0,0 +1,65 @@ +#ifndef SRAREGION_H +#define SRAREGION_H + +/* -=- SRA - Simple Region Algorithm + * A simple rectangular region implementation. + * Copyright (c) 2001 James "Wez" Weatherall, Johannes E. Schindelin + */ + +/* -=- sraRect */ + +typedef struct _rect { + int x1; + int y1; + int x2; + int y2; +} sraRect; + +typedef struct sraRegion sraRegion; + +/* -=- Region manipulation functions */ + +extern sraRegion *sraRgnCreate(); +extern sraRegion *sraRgnCreateRect(int x1, int y1, int x2, int y2); +extern sraRegion *sraRgnCreateRgn(const sraRegion *src); + +extern void sraRgnDestroy(sraRegion *rgn); +extern void sraRgnMakeEmpty(sraRegion *rgn); +extern Bool sraRgnAnd(sraRegion *dst, const sraRegion *src); +extern void sraRgnOr(sraRegion *dst, const sraRegion *src); +extern Bool sraRgnSubtract(sraRegion *dst, const sraRegion *src); + +extern void sraRgnOffset(sraRegion *dst, int dx, int dy); + +extern Bool sraRgnPopRect(sraRegion *region, sraRect *rect, + unsigned long flags); + +extern unsigned long sraRgnCountRects(const sraRegion *rgn); +extern Bool sraRgnEmpty(const sraRegion *rgn); + +extern sraRegion *sraRgnBBox(const sraRegion *src); + +/* -=- rectangle iterator */ + +typedef struct sraRectangleIterator { + Bool reverseX,reverseY; + int ptrSize,ptrPos; + struct sraSpan** sPtrs; +} sraRectangleIterator; + +extern sraRectangleIterator *sraRgnGetIterator(sraRegion *s); +extern sraRectangleIterator *sraRgnGetReverseIterator(sraRegion *s,Bool reverseX,Bool reverseY); +extern Bool sraRgnIteratorNext(sraRectangleIterator *i,sraRect *r); +extern void sraRgnReleaseIterator(sraRectangleIterator *i); + +void sraRgnPrint(const sraRegion *s); + +/* -=- Rectangle clipper (for speed) */ + +extern Bool sraClipRect(int *x, int *y, int *w, int *h, + int cx, int cy, int cw, int ch); + +extern Bool sraClipRect2(int *x, int *y, int *x2, int *y2, + int cx, int cy, int cx2, int cy2); + +#endif diff --git a/krfb/libvncserver/stats.c b/krfb/libvncserver/stats.c new file mode 100644 index 00000000..7774d2fa --- /dev/null +++ b/krfb/libvncserver/stats.c @@ -0,0 +1,103 @@ +/* + * stats.c + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include "rfb.h" + +static const char* encNames[] = { + "raw", "copyRect", "RRE", "[encoding 3]", "CoRRE", "hextile", + "zlib", "tight", "[encoding 8]", "[encoding 9]" +}; + + +void +rfbResetStats(rfbClientPtr cl) +{ + int i; + for (i = 0; i < MAX_ENCODINGS; i++) { + cl->rfbBytesSent[i] = 0; + cl->rfbRectanglesSent[i] = 0; + } + cl->rfbLastRectMarkersSent = 0; + cl->rfbLastRectBytesSent = 0; + cl->rfbCursorBytesSent = 0; + cl->rfbCursorUpdatesSent = 0; + cl->rfbFramebufferUpdateMessagesSent = 0; + cl->rfbRawBytesEquivalent = 0; + cl->rfbKeyEventsRcvd = 0; + cl->rfbPointerEventsRcvd = 0; +} + +void +rfbPrintStats(rfbClientPtr cl) +{ + int i; + int totalRectanglesSent = 0; + int totalBytesSent = 0; + + rfbLog("Statistics:\n"); + + if ((cl->rfbKeyEventsRcvd != 0) || (cl->rfbPointerEventsRcvd != 0)) + rfbLog(" key events received %d, pointer events %d\n", + cl->rfbKeyEventsRcvd, cl->rfbPointerEventsRcvd); + + for (i = 0; i < MAX_ENCODINGS; i++) { + totalRectanglesSent += cl->rfbRectanglesSent[i]; + totalBytesSent += cl->rfbBytesSent[i]; + } + + totalRectanglesSent += (cl->rfbCursorUpdatesSent + + cl->rfbLastRectMarkersSent); + totalBytesSent += (cl->rfbCursorBytesSent + cl->rfbLastRectBytesSent); + + rfbLog(" framebuffer updates %d, rectangles %d, bytes %d\n", + cl->rfbFramebufferUpdateMessagesSent, totalRectanglesSent, + totalBytesSent); + + if (cl->rfbLastRectMarkersSent != 0) + rfbLog(" LastRect markers %d, bytes %d\n", + cl->rfbLastRectMarkersSent, cl->rfbLastRectBytesSent); + + if (cl->rfbCursorUpdatesSent != 0) + rfbLog(" cursor shape updates %d, bytes %d\n", + cl->rfbCursorUpdatesSent, cl->rfbCursorBytesSent); + + for (i = 0; i < MAX_ENCODINGS; i++) { + if (cl->rfbRectanglesSent[i] != 0) + rfbLog(" %s rectangles %d, bytes %d\n", + encNames[i], cl->rfbRectanglesSent[i], cl->rfbBytesSent[i]); + } + + if ((totalBytesSent - cl->rfbBytesSent[rfbEncodingCopyRect]) != 0) { + rfbLog(" raw bytes equivalent %d, compression ratio %f\n", + cl->rfbRawBytesEquivalent, + (double)cl->rfbRawBytesEquivalent + / (double)(totalBytesSent + - cl->rfbBytesSent[rfbEncodingCopyRect]- + cl->rfbCursorBytesSent - + cl->rfbLastRectBytesSent)); + } +} diff --git a/krfb/libvncserver/storepasswd.c b/krfb/libvncserver/storepasswd.c new file mode 100644 index 00000000..1470e4db --- /dev/null +++ b/krfb/libvncserver/storepasswd.c @@ -0,0 +1,46 @@ +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include "rfb.h" + +void usage(void) +{ + printf("\nusage: storepasswd <password> <filename>\n\n"); + + printf("Stores a password in encrypted format.\n"); + printf("The resulting file can be used with the -rfbauth argument to OSXvnc.\n\n"); + exit(1); +} + +int main(int argc, char *argv[]) +{ + if (argc != 3) + usage(); + + if (vncEncryptAndStorePasswd(argv[1], argv[2]) != 0) { + printf("storing password failed.\n"); + return 1; + } else { + printf("storing password succeeded.\n"); + return 0; + } +} diff --git a/krfb/libvncserver/tableinit24.c b/krfb/libvncserver/tableinit24.c new file mode 100644 index 00000000..f1e63a50 --- /dev/null +++ b/krfb/libvncserver/tableinit24.c @@ -0,0 +1,157 @@ +/* + 24 bit + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +static void +rfbInitOneRGBTable24 (CARD8 *table, int inMax, int outMax, int outShift,int swap); + + +static void +rfbInitColourMapSingleTable24(char **table, rfbPixelFormat *in, + rfbPixelFormat *out,rfbColourMap* colourMap) +{ + CARD32 i, r, g, b, outValue; + CARD8 *t; + CARD8 c; + unsigned int nEntries = 1 << in->bitsPerPixel; + int shift = colourMap->is16?16:8; + + if (*table) free(*table); + *table = (char *)malloc(nEntries * 3 + 1); + t = (CARD8 *)*table; + + for (i = 0; i < nEntries; i++) { + r = g = b = 0; + if(i < colourMap->count) { + if(colourMap->is16) { + r = colourMap->data.shorts[3*i+0]; + g = colourMap->data.shorts[3*i+1]; + b = colourMap->data.shorts[3*i+2]; + } else { + r = colourMap->data.bytes[3*i+0]; + g = colourMap->data.bytes[3*i+1]; + b = colourMap->data.bytes[3*i+2]; + } + } + outValue = ((((r * (1 + out->redMax)) >> shift) << out->redShift) | + (((g * (1 + out->greenMax)) >> shift) << out->greenShift) | + (((b * (1 + out->blueMax)) >> shift) << out->blueShift)); + *(CARD32*)&t[3*i] = outValue; + if(!rfbEndianTest) + memmove(t+3*i,t+3*i+1,3); + if (out->bigEndian != in->bigEndian) { + c = t[3*i]; t[3*i] = t[3*i+2]; t[3*i+2] = c; + } + } +} + +/* + * rfbInitTrueColourSingleTable sets up a single lookup table for truecolour + * translation. + */ + +static void +rfbInitTrueColourSingleTable24 (char **table, rfbPixelFormat *in, + rfbPixelFormat *out) +{ + int i,outValue; + int inRed, inGreen, inBlue, outRed, outGreen, outBlue; + CARD8 *t; + CARD8 c; + int nEntries = 1 << in->bitsPerPixel; + + if (*table) free(*table); + *table = (char *)malloc(nEntries * 3 + 1); + t = (CARD8 *)*table; + + for (i = 0; i < nEntries; i++) { + inRed = (i >> in->redShift) & in->redMax; + inGreen = (i >> in->greenShift) & in->greenMax; + inBlue = (i >> in->blueShift) & in->blueMax; + + outRed = (inRed * out->redMax + in->redMax / 2) / in->redMax; + outGreen = (inGreen * out->greenMax + in->greenMax / 2) / in->greenMax; + outBlue = (inBlue * out->blueMax + in->blueMax / 2) / in->blueMax; + + outValue = ((outRed << out->redShift) | + (outGreen << out->greenShift) | + (outBlue << out->blueShift)); + *(CARD32*)&t[3*i] = outValue; + if(!rfbEndianTest) + memmove(t+3*i,t+3*i+1,3); + if (out->bigEndian != in->bigEndian) { + c = t[3*i]; t[3*i] = t[3*i+2]; t[3*i+2] = c; + } + } +} + + +/* + * rfbInitTrueColourRGBTables sets up three separate lookup tables for the + * red, green and blue values. + */ + +static void +rfbInitTrueColourRGBTables24 (char **table, rfbPixelFormat *in, + rfbPixelFormat *out) +{ + CARD8 *redTable; + CARD8 *greenTable; + CARD8 *blueTable; + + if (*table) free(*table); + *table = (char *)malloc((in->redMax + in->greenMax + in->blueMax + 3) + * 3 + 1); + redTable = (CARD8 *)*table; + greenTable = redTable + 3*(in->redMax + 1); + blueTable = greenTable + 3*(in->greenMax + 1); + + rfbInitOneRGBTable24 (redTable, in->redMax, out->redMax, + out->redShift, (out->bigEndian != in->bigEndian)); + rfbInitOneRGBTable24 (greenTable, in->greenMax, out->greenMax, + out->greenShift, (out->bigEndian != in->bigEndian)); + rfbInitOneRGBTable24 (blueTable, in->blueMax, out->blueMax, + out->blueShift, (out->bigEndian != in->bigEndian)); +} + +static void +rfbInitOneRGBTable24 (CARD8 *table, int inMax, int outMax, int outShift, + int swap) +{ + int i; + int nEntries = inMax + 1; + CARD32 outValue; + CARD8 c; + + for (i = 0; i < nEntries; i++) { + outValue = ((i * outMax + inMax / 2) / inMax) << outShift; + *(CARD32 *)&table[3*i] = outValue; + if(!rfbEndianTest) + memmove(table+3*i,table+3*i+1,3); + if (swap) { + c = table[3*i]; table[3*i] = table[3*i+2]; + table[3*i+2] = c; + } + } +} diff --git a/krfb/libvncserver/tableinitcmtemplate.c b/krfb/libvncserver/tableinitcmtemplate.c new file mode 100644 index 00000000..2d10ea57 --- /dev/null +++ b/krfb/libvncserver/tableinitcmtemplate.c @@ -0,0 +1,84 @@ +/* + * tableinitcmtemplate.c - template for initialising lookup tables for + * translation from a colour map to true colour. + * + * This file shouldn't be compiled. It is included multiple times by + * translate.c, each time with a different definition of the macro OUT. + * For each value of OUT, this file defines a function which allocates an + * appropriately sized lookup table and initialises it. + * + * I know this code isn't nice to read because of all the macros, but + * efficiency is important here. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#if !defined(OUT) +#error "This file shouldn't be compiled." +#error "It is included as part of translate.c" +#endif + +#define OUT_T CONCAT2E(CARD,OUT) +#define SwapOUT(x) CONCAT2E(Swap,OUT(x)) +#define rfbInitColourMapSingleTableOUT \ + CONCAT2E(rfbInitColourMapSingleTable,OUT) + +static void +rfbInitColourMapSingleTableOUT(char **table, rfbPixelFormat *in, + rfbPixelFormat *out,rfbColourMap* colourMap) +{ + CARD32 i, r, g, b; + OUT_T *t; + CARD32 nEntries = 1 << in->bitsPerPixel; + int shift = colourMap->is16?16:8; + + if (*table) free(*table); + *table = (char *)malloc(nEntries * sizeof(OUT_T)); + t = (OUT_T *)*table; + + for (i = 0; i < nEntries; i++) { + r = g = b = 0; + if(i < colourMap->count) { + if(colourMap->is16) { + r = colourMap->data.shorts[3*i+0]; + g = colourMap->data.shorts[3*i+1]; + b = colourMap->data.shorts[3*i+2]; + } else { + r = colourMap->data.bytes[3*i+0]; + g = colourMap->data.bytes[3*i+1]; + b = colourMap->data.bytes[3*i+2]; + } + } + t[i] = ((((r * (1 + out->redMax)) >> shift) << out->redShift) | + (((g * (1 + out->greenMax)) >> shift) << out->greenShift) | + (((b * (1 + out->blueMax)) >> shift) << out->blueShift)); +#if (OUT != 8) + if (out->bigEndian != in->bigEndian) { + t[i] = SwapOUT(t[i]); + } +#endif + } +} + +#undef OUT_T +#undef SwapOUT +#undef rfbInitColourMapSingleTableOUT diff --git a/krfb/libvncserver/tableinittctemplate.c b/krfb/libvncserver/tableinittctemplate.c new file mode 100644 index 00000000..93223d97 --- /dev/null +++ b/krfb/libvncserver/tableinittctemplate.c @@ -0,0 +1,142 @@ +/* + * tableinittctemplate.c - template for initialising lookup tables for + * truecolour to truecolour translation. + * + * This file shouldn't be compiled. It is included multiple times by + * translate.c, each time with a different definition of the macro OUT. + * For each value of OUT, this file defines two functions for initialising + * lookup tables. One is for truecolour translation using a single lookup + * table, the other is for truecolour translation using three separate + * lookup tables for the red, green and blue values. + * + * I know this code isn't nice to read because of all the macros, but + * efficiency is important here. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#if !defined(OUT) +#error "This file shouldn't be compiled." +#error "It is included as part of translate.c" +#endif + +#define OUT_T CONCAT2E(CARD,OUT) +#define SwapOUT(x) CONCAT2E(Swap,OUT(x)) +#define rfbInitTrueColourSingleTableOUT \ + CONCAT2E(rfbInitTrueColourSingleTable,OUT) +#define rfbInitTrueColourRGBTablesOUT CONCAT2E(rfbInitTrueColourRGBTables,OUT) +#define rfbInitOneRGBTableOUT CONCAT2E(rfbInitOneRGBTable,OUT) + +static void +rfbInitOneRGBTableOUT (OUT_T *table, int inMax, int outMax, int outShift, + int swap); + + +/* + * rfbInitTrueColourSingleTable sets up a single lookup table for truecolour + * translation. + */ + +static void +rfbInitTrueColourSingleTableOUT (char **table, rfbPixelFormat *in, + rfbPixelFormat *out) +{ + int i; + int inRed, inGreen, inBlue, outRed, outGreen, outBlue; + OUT_T *t; + int nEntries = 1 << in->bitsPerPixel; + + if (*table) free(*table); + *table = (char *)malloc(nEntries * sizeof(OUT_T)); + t = (OUT_T *)*table; + + for (i = 0; i < nEntries; i++) { + inRed = (i >> in->redShift) & in->redMax; + inGreen = (i >> in->greenShift) & in->greenMax; + inBlue = (i >> in->blueShift) & in->blueMax; + + outRed = (inRed * out->redMax + in->redMax / 2) / in->redMax; + outGreen = (inGreen * out->greenMax + in->greenMax / 2) / in->greenMax; + outBlue = (inBlue * out->blueMax + in->blueMax / 2) / in->blueMax; + + t[i] = ((outRed << out->redShift) | + (outGreen << out->greenShift) | + (outBlue << out->blueShift)); +#if (OUT != 8) + if (out->bigEndian != in->bigEndian) { + t[i] = SwapOUT(t[i]); + } +#endif + } +} + + +/* + * rfbInitTrueColourRGBTables sets up three separate lookup tables for the + * red, green and blue values. + */ + +static void +rfbInitTrueColourRGBTablesOUT (char **table, rfbPixelFormat *in, + rfbPixelFormat *out) +{ + OUT_T *redTable; + OUT_T *greenTable; + OUT_T *blueTable; + + if (*table) free(*table); + *table = (char *)malloc((in->redMax + in->greenMax + in->blueMax + 3) + * sizeof(OUT_T)); + redTable = (OUT_T *)*table; + greenTable = redTable + in->redMax + 1; + blueTable = greenTable + in->greenMax + 1; + + rfbInitOneRGBTableOUT (redTable, in->redMax, out->redMax, + out->redShift, (out->bigEndian != in->bigEndian)); + rfbInitOneRGBTableOUT (greenTable, in->greenMax, out->greenMax, + out->greenShift, (out->bigEndian != in->bigEndian)); + rfbInitOneRGBTableOUT (blueTable, in->blueMax, out->blueMax, + out->blueShift, (out->bigEndian != in->bigEndian)); +} + +static void +rfbInitOneRGBTableOUT (OUT_T *table, int inMax, int outMax, int outShift, + int swap) +{ + int i; + int nEntries = inMax + 1; + + for (i = 0; i < nEntries; i++) { + table[i] = ((i * outMax + inMax / 2) / inMax) << outShift; +#if (OUT != 8) + if (swap) { + table[i] = SwapOUT(table[i]); + } +#endif + } +} + +#undef OUT_T +#undef SwapOUT +#undef rfbInitTrueColourSingleTableOUT +#undef rfbInitTrueColourRGBTablesOUT +#undef rfbInitOneRGBTableOUT diff --git a/krfb/libvncserver/tabletrans24template.c b/krfb/libvncserver/tabletrans24template.c new file mode 100644 index 00000000..44a37cb7 --- /dev/null +++ b/krfb/libvncserver/tabletrans24template.c @@ -0,0 +1,281 @@ +/* + * tabletranstemplate.c - template for translation using lookup tables. + * + * This file shouldn't be compiled. It is included multiple times by + * translate.c, each time with different definitions of the macros IN and OUT. + * + * For each pair of values IN and OUT, this file defines two functions for + * translating a given rectangle of pixel data. One uses a single lookup + * table, and the other uses three separate lookup tables for the red, green + * and blue values. + * + * I know this code isn't nice to read because of all the macros, but + * efficiency is important here. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#if !defined(BPP) +#error "This file shouldn't be compiled." +#error "It is included as part of translate.c" +#endif + +#if BPP == 24 + +/* + * rfbTranslateWithSingleTableINtoOUT translates a rectangle of pixel data + * using a single lookup table. + */ + +static void +rfbTranslateWithSingleTable24to24 (char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height) +{ + CARD8 *ip = (CARD8 *)iptr; + CARD8 *op = (CARD8 *)optr; + int ipextra = bytesBetweenInputLines - width * 3; + CARD8 *opLineEnd; + CARD8 *t = (CARD8 *)table; + int shift = rfbEndianTest?0:8; + CARD8 c; + + while (height > 0) { + opLineEnd = op + width*3; + + while (op < opLineEnd) { + *(CARD32*)op = t[((*(CARD32 *)ip)>>shift)&0x00ffffff]; + if(!rfbEndianTest) + memmove(op,op+1,3); + if (out->bigEndian != in->bigEndian) { + c = op[0]; op[0] = op[2]; op[2] = c; + } + op += 3; + ip += 3; + } + + ip += ipextra; + height--; + } +} + +/* + * rfbTranslateWithRGBTablesINtoOUT translates a rectangle of pixel data + * using three separate lookup tables for the red, green and blue values. + */ + +static void +rfbTranslateWithRGBTables24to24 (char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height) +{ + CARD8 *ip = (CARD8 *)iptr; + CARD8 *op = (CARD8 *)optr; + int ipextra = bytesBetweenInputLines - width*3; + CARD8 *opLineEnd; + CARD8 *redTable = (CARD8 *)table; + CARD8 *greenTable = redTable + 3*(in->redMax + 1); + CARD8 *blueTable = greenTable + 3*(in->greenMax + 1); + CARD32 outValue,inValue; + int shift = rfbEndianTest?0:8; + + while (height > 0) { + opLineEnd = op+3*width; + + while (op < opLineEnd) { + inValue = ((*(CARD32 *)ip)>>shift)&0x00ffffff; + outValue = (redTable[(inValue >> in->redShift) & in->redMax] | + greenTable[(inValue >> in->greenShift) & in->greenMax] | + blueTable[(inValue >> in->blueShift) & in->blueMax]); + memcpy(op,&outValue,3); + op += 3; + ip+=3; + } + ip += ipextra; + height--; + } +} + +#else + +#define IN_T CONCAT2E(CARD,BPP) +#define OUT_T CONCAT2E(CARD,BPP) +#define rfbTranslateWithSingleTable24toOUT \ + CONCAT4E(rfbTranslateWithSingleTable,24,to,BPP) +#define rfbTranslateWithSingleTableINto24 \ + CONCAT4E(rfbTranslateWithSingleTable,BPP,to,24) +#define rfbTranslateWithRGBTables24toOUT \ + CONCAT4E(rfbTranslateWithRGBTables,24,to,BPP) +#define rfbTranslateWithRGBTablesINto24 \ + CONCAT4E(rfbTranslateWithRGBTables,BPP,to,24) + +/* + * rfbTranslateWithSingleTableINtoOUT translates a rectangle of pixel data + * using a single lookup table. + */ + +static void +rfbTranslateWithSingleTable24toOUT (char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height) +{ + CARD8 *ip = (CARD8 *)iptr; + OUT_T *op = (OUT_T *)optr; + int ipextra = bytesBetweenInputLines - width*3; + OUT_T *opLineEnd; + OUT_T *t = (OUT_T *)table; + int shift = rfbEndianTest?0:8; + + while (height > 0) { + opLineEnd = op + width; + + while (op < opLineEnd) { + *(op++) = t[((*(CARD32 *)ip)>>shift)&0x00ffffff]; + ip+=3; + } + + ip += ipextra; + height--; + } +} + + +/* + * rfbTranslateWithRGBTablesINtoOUT translates a rectangle of pixel data + * using three separate lookup tables for the red, green and blue values. + */ + +static void +rfbTranslateWithRGBTables24toOUT (char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height) +{ + CARD8 *ip = (CARD8 *)iptr; + OUT_T *op = (OUT_T *)optr; + int ipextra = bytesBetweenInputLines - width*3; + OUT_T *opLineEnd; + OUT_T *redTable = (OUT_T *)table; + OUT_T *greenTable = redTable + in->redMax + 1; + OUT_T *blueTable = greenTable + in->greenMax + 1; + CARD32 inValue; + int shift = rfbEndianTest?0:8; + + while (height > 0) { + opLineEnd = &op[width]; + + while (op < opLineEnd) { + inValue = ((*(CARD32 *)ip)>>shift)&0x00ffffff; + *(op++) = (redTable[(inValue >> in->redShift) & in->redMax] | + greenTable[(inValue >> in->greenShift) & in->greenMax] | + blueTable[(inValue >> in->blueShift) & in->blueMax]); + ip+=3; + } + ip += ipextra; + height--; + } +} + +/* + * rfbTranslateWithSingleTableINto24 translates a rectangle of pixel data + * using a single lookup table. + */ + +static void +rfbTranslateWithSingleTableINto24 (char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height) +{ + IN_T *ip = (IN_T *)iptr; + CARD8 *op = (CARD8 *)optr; + int ipextra = bytesBetweenInputLines / sizeof(IN_T) - width; + CARD8 *opLineEnd; + CARD8 *t = (CARD8 *)table; + + while (height > 0) { + opLineEnd = op + width * 3; + + while (op < opLineEnd) { + memcpy(op,&t[3*(*(ip++))],3); + op += 3; + } + + ip += ipextra; + height--; + } +} + + +/* + * rfbTranslateWithRGBTablesINto24 translates a rectangle of pixel data + * using three separate lookup tables for the red, green and blue values. + */ + +static void +rfbTranslateWithRGBTablesINto24 (char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height) +{ + IN_T *ip = (IN_T *)iptr; + CARD8 *op = (CARD8 *)optr; + int ipextra = bytesBetweenInputLines / sizeof(IN_T) - width; + CARD8 *opLineEnd; + CARD8 *redTable = (CARD8 *)table; + CARD8 *greenTable = redTable + 3*(in->redMax + 1); + CARD8 *blueTable = greenTable + 3*(in->greenMax + 1); + CARD32 outValue; + + while (height > 0) { + opLineEnd = op+3*width; + + while (op < opLineEnd) { + outValue = (redTable[(*ip >> in->redShift) & in->redMax] | + greenTable[(*ip >> in->greenShift) & in->greenMax] | + blueTable[(*ip >> in->blueShift) & in->blueMax]); + memcpy(op,&outValue,3); + op += 3; + ip++; + } + ip += ipextra; + height--; + } +} + +#undef IN_T +#undef OUT_T +#undef rfbTranslateWithSingleTable24toOUT +#undef rfbTranslateWithRGBTables24toOUT +#undef rfbTranslateWithSingleTableINto24 +#undef rfbTranslateWithRGBTablesINto24 + +#endif diff --git a/krfb/libvncserver/tabletranstemplate.c b/krfb/libvncserver/tabletranstemplate.c new file mode 100644 index 00000000..0aafff0f --- /dev/null +++ b/krfb/libvncserver/tabletranstemplate.c @@ -0,0 +1,117 @@ +/* + * tabletranstemplate.c - template for translation using lookup tables. + * + * This file shouldn't be compiled. It is included multiple times by + * translate.c, each time with different definitions of the macros IN and OUT. + * + * For each pair of values IN and OUT, this file defines two functions for + * translating a given rectangle of pixel data. One uses a single lookup + * table, and the other uses three separate lookup tables for the red, green + * and blue values. + * + * I know this code isn't nice to read because of all the macros, but + * efficiency is important here. + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#if !defined(IN) || !defined(OUT) +#error "This file shouldn't be compiled." +#error "It is included as part of translate.c" +#endif + +#define IN_T CONCAT2E(CARD,IN) +#define OUT_T CONCAT2E(CARD,OUT) +#define rfbTranslateWithSingleTableINtoOUT \ + CONCAT4E(rfbTranslateWithSingleTable,IN,to,OUT) +#define rfbTranslateWithRGBTablesINtoOUT \ + CONCAT4E(rfbTranslateWithRGBTables,IN,to,OUT) + +/* + * rfbTranslateWithSingleTableINtoOUT translates a rectangle of pixel data + * using a single lookup table. + */ + +static void +rfbTranslateWithSingleTableINtoOUT (char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height) +{ + IN_T *ip = (IN_T *)iptr; + OUT_T *op = (OUT_T *)optr; + int ipextra = bytesBetweenInputLines / sizeof(IN_T) - width; + OUT_T *opLineEnd; + OUT_T *t = (OUT_T *)table; + + while (height > 0) { + opLineEnd = op + width; + + while (op < opLineEnd) { + *(op++) = t[*(ip++)]; + } + + ip += ipextra; + height--; + } +} + + +/* + * rfbTranslateWithRGBTablesINtoOUT translates a rectangle of pixel data + * using three separate lookup tables for the red, green and blue values. + */ + +static void +rfbTranslateWithRGBTablesINtoOUT (char *table, rfbPixelFormat *in, + rfbPixelFormat *out, + char *iptr, char *optr, + int bytesBetweenInputLines, + int width, int height) +{ + IN_T *ip = (IN_T *)iptr; + OUT_T *op = (OUT_T *)optr; + int ipextra = bytesBetweenInputLines / sizeof(IN_T) - width; + OUT_T *opLineEnd; + OUT_T *redTable = (OUT_T *)table; + OUT_T *greenTable = redTable + in->redMax + 1; + OUT_T *blueTable = greenTable + in->greenMax + 1; + + while (height > 0) { + opLineEnd = &op[width]; + + while (op < opLineEnd) { + *(op++) = (redTable[(*ip >> in->redShift) & in->redMax] | + greenTable[(*ip >> in->greenShift) & in->greenMax] | + blueTable[(*ip >> in->blueShift) & in->blueMax]); + ip++; + } + ip += ipextra; + height--; + } +} + +#undef IN_T +#undef OUT_T +#undef rfbTranslateWithSingleTableINtoOUT +#undef rfbTranslateWithRGBTablesINtoOUT diff --git a/krfb/libvncserver/tight.c b/krfb/libvncserver/tight.c new file mode 100644 index 00000000..8b57f82a --- /dev/null +++ b/krfb/libvncserver/tight.c @@ -0,0 +1,1809 @@ +/* + * tight.c + * + * Routines to implement Tight Encoding + */ + +/* + * Copyright (C) 2000, 2001 Const Kaplinsky. All Rights Reserved. + * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +/*#include <stdio.h>*/ +#include "rfb.h" + +#ifdef WIN32 +#define XMD_H +#undef FAR +#define NEEDFAR_POINTERS +#endif + +#include <jpeglib.h> + +/* Note: The following constant should not be changed. */ +#define TIGHT_MIN_TO_COMPRESS 12 + +/* The parameters below may be adjusted. */ +#define MIN_SPLIT_RECT_SIZE 4096 +#define MIN_SOLID_SUBRECT_SIZE 2048 +#define MAX_SPLIT_TILE_SIZE 16 + +/* May be set to TRUE with "-lazytight" Xvnc option. */ +Bool rfbTightDisableGradient = FALSE; + +/* This variable is set on every rfbSendRectEncodingTight() call. */ +static Bool usePixelFormat24; + + +/* Compression level stuff. The following array contains various + encoder parameters for each of 10 compression levels (0..9). + Last three parameters correspond to JPEG quality levels (0..9). */ + +typedef struct TIGHT_CONF_s { + int maxRectSize, maxRectWidth; + int monoMinRectSize, gradientMinRectSize; + int idxZlibLevel, monoZlibLevel, rawZlibLevel, gradientZlibLevel; + int gradientThreshold, gradientThreshold24; + int idxMaxColorsDivisor; + int jpegQuality, jpegThreshold, jpegThreshold24; +} TIGHT_CONF; + +static TIGHT_CONF tightConf[10] = { + { 512, 32, 6, 65536, 0, 0, 0, 0, 0, 0, 4, 20, 10000, 23000 }, + { 2048, 128, 6, 65536, 1, 1, 1, 0, 0, 0, 8, 30, 8000, 18000 }, + { 6144, 256, 8, 65536, 3, 3, 2, 0, 0, 0, 24, 40, 6500, 15000 }, + { 10240, 1024, 12, 65536, 5, 5, 3, 0, 0, 0, 32, 50, 5000, 12000 }, + { 16384, 2048, 12, 65536, 6, 6, 4, 0, 0, 0, 32, 55, 4000, 10000 }, + { 32768, 2048, 12, 4096, 7, 7, 5, 4, 150, 380, 32, 60, 3000, 8000 }, + { 65536, 2048, 16, 4096, 7, 7, 6, 4, 170, 420, 48, 65, 2000, 5000 }, + { 65536, 2048, 16, 4096, 8, 8, 7, 5, 180, 450, 64, 70, 1000, 2500 }, + { 65536, 2048, 32, 8192, 9, 9, 8, 6, 190, 475, 64, 75, 500, 1200 }, + { 65536, 2048, 32, 8192, 9, 9, 9, 6, 200, 500, 96, 80, 200, 500 } +}; + +static int compressLevel; +static int qualityLevel; + +/* Stuff dealing with palettes. */ + +typedef struct COLOR_LIST_s { + struct COLOR_LIST_s *next; + int idx; + CARD32 rgb; +} COLOR_LIST; + +typedef struct PALETTE_ENTRY_s { + COLOR_LIST *listNode; + int numPixels; +} PALETTE_ENTRY; + +typedef struct PALETTE_s { + PALETTE_ENTRY entry[256]; + COLOR_LIST *hash[256]; + COLOR_LIST list[256]; +} PALETTE; + +static int paletteNumColors, paletteMaxColors; +static CARD32 monoBackground, monoForeground; +static PALETTE palette; + +/* Pointers to dynamically-allocated buffers. */ + +static int tightBeforeBufSize = 0; +static char *tightBeforeBuf = NULL; + +static int tightAfterBufSize = 0; +static char *tightAfterBuf = NULL; + +static int *prevRowBuf = NULL; + + +/* Prototypes for static functions. */ + +static void FindBestSolidArea (rfbClientPtr cl, int x, int y, int w, int h, + CARD32 colorValue, int *w_ptr, int *h_ptr); +static void ExtendSolidArea (rfbClientPtr cl, int x, int y, int w, int h, + CARD32 colorValue, + int *x_ptr, int *y_ptr, int *w_ptr, int *h_ptr); +static Bool CheckSolidTile (rfbClientPtr cl, int x, int y, int w, int h, + CARD32 *colorPtr, Bool needSameColor); +static Bool CheckSolidTile8 (rfbClientPtr cl, int x, int y, int w, int h, + CARD32 *colorPtr, Bool needSameColor); +static Bool CheckSolidTile16 (rfbClientPtr cl, int x, int y, int w, int h, + CARD32 *colorPtr, Bool needSameColor); +static Bool CheckSolidTile32 (rfbClientPtr cl, int x, int y, int w, int h, + CARD32 *colorPtr, Bool needSameColor); + +static Bool SendRectSimple (rfbClientPtr cl, int x, int y, int w, int h); +static Bool SendSubrect (rfbClientPtr cl, int x, int y, int w, int h); +static Bool SendTightHeader (rfbClientPtr cl, int x, int y, int w, int h); + +static Bool SendSolidRect (rfbClientPtr cl); +static Bool SendMonoRect (rfbClientPtr cl, int w, int h); +static Bool SendIndexedRect (rfbClientPtr cl, int w, int h); +static Bool SendFullColorRect (rfbClientPtr cl, int w, int h); +static Bool SendGradientRect (rfbClientPtr cl, int w, int h); + +static Bool CompressData(rfbClientPtr cl, int streamId, int dataLen, + int zlibLevel, int zlibStrategy); +static Bool SendCompressedData(rfbClientPtr cl, int compressedLen); + +static void FillPalette8(int count); +static void FillPalette16(int count); +static void FillPalette32(int count); + +static void PaletteReset(void); +static int PaletteInsert(CARD32 rgb, int numPixels, int bpp); + +static void Pack24(rfbClientPtr cl, char *buf, rfbPixelFormat *fmt, int count); + +static void EncodeIndexedRect16(CARD8 *buf, int count); +static void EncodeIndexedRect32(CARD8 *buf, int count); + +static void EncodeMonoRect8(CARD8 *buf, int w, int h); +static void EncodeMonoRect16(CARD8 *buf, int w, int h); +static void EncodeMonoRect32(CARD8 *buf, int w, int h); + +static void FilterGradient24(rfbClientPtr cl, char *buf, rfbPixelFormat *fmt, int w, int h); +static void FilterGradient16(rfbClientPtr cl, CARD16 *buf, rfbPixelFormat *fmt, int w, int h); +static void FilterGradient32(rfbClientPtr cl, CARD32 *buf, rfbPixelFormat *fmt, int w, int h); + +static int DetectSmoothImage(rfbClientPtr cl, rfbPixelFormat *fmt, int w, int h); +static unsigned long DetectSmoothImage24(rfbClientPtr cl, rfbPixelFormat *fmt, int w, int h); +static unsigned long DetectSmoothImage16(rfbClientPtr cl, rfbPixelFormat *fmt, int w, int h); +static unsigned long DetectSmoothImage32(rfbClientPtr cl, rfbPixelFormat *fmt, int w, int h); + +static Bool SendJpegRect(rfbClientPtr cl, int x, int y, int w, int h, + int quality); +static void PrepareRowForJpeg(rfbClientPtr cl, CARD8 *dst, int x, int y, int count); +static void PrepareRowForJpeg24(rfbClientPtr cl, CARD8 *dst, int x, int y, int count); +static void PrepareRowForJpeg16(rfbClientPtr cl, CARD8 *dst, int x, int y, int count); +static void PrepareRowForJpeg32(rfbClientPtr cl, CARD8 *dst, int x, int y, int count); + +static void JpegInitDestination(j_compress_ptr cinfo); +static boolean JpegEmptyOutputBuffer(j_compress_ptr cinfo); +static void JpegTermDestination(j_compress_ptr cinfo); +static void JpegSetDstManager(j_compress_ptr cinfo); + + +/* + * Tight encoding implementation. + */ + +int +rfbNumCodedRectsTight(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + int maxRectSize, maxRectWidth; + int subrectMaxWidth, subrectMaxHeight; + + /* No matter how many rectangles we will send if LastRect markers + are used to terminate rectangle stream. */ + if (cl->enableLastRectEncoding && w * h >= MIN_SPLIT_RECT_SIZE) + return 0; + + maxRectSize = tightConf[cl->tightCompressLevel].maxRectSize; + maxRectWidth = tightConf[cl->tightCompressLevel].maxRectWidth; + + if (w > maxRectWidth || w * h > maxRectSize) { + subrectMaxWidth = (w > maxRectWidth) ? maxRectWidth : w; + subrectMaxHeight = maxRectSize / subrectMaxWidth; + return (((w - 1) / maxRectWidth + 1) * + ((h - 1) / subrectMaxHeight + 1)); + } else { + return 1; + } +} + +Bool +rfbSendRectEncodingTight(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + int nMaxRows; + CARD32 colorValue; + int dx, dy, dw, dh; + int x_best, y_best, w_best, h_best; + char *fbptr; + + compressLevel = cl->tightCompressLevel; + qualityLevel = cl->tightQualityLevel; + + if ( cl->format.depth == 24 && cl->format.redMax == 0xFF && + cl->format.greenMax == 0xFF && cl->format.blueMax == 0xFF ) { + usePixelFormat24 = TRUE; + } else { + usePixelFormat24 = FALSE; + } + + if (!cl->enableLastRectEncoding || w * h < MIN_SPLIT_RECT_SIZE) + return SendRectSimple(cl, x, y, w, h); + + /* Make sure we can write at least one pixel into tightBeforeBuf. */ + + if (tightBeforeBufSize < 4) { + tightBeforeBufSize = 4; + if (tightBeforeBuf == NULL) + tightBeforeBuf = (char *)malloc(tightBeforeBufSize); + else + tightBeforeBuf = (char *)realloc(tightBeforeBuf, + tightBeforeBufSize); + } + + /* Calculate maximum number of rows in one non-solid rectangle. */ + + { + int maxRectSize, maxRectWidth, nMaxWidth; + + maxRectSize = tightConf[compressLevel].maxRectSize; + maxRectWidth = tightConf[compressLevel].maxRectWidth; + nMaxWidth = (w > maxRectWidth) ? maxRectWidth : w; + nMaxRows = maxRectSize / nMaxWidth; + } + + /* Try to find large solid-color areas and send them separately. */ + + for (dy = y; dy < y + h; dy += MAX_SPLIT_TILE_SIZE) { + + /* If a rectangle becomes too large, send its upper part now. */ + + if (dy - y >= nMaxRows) { + if (!SendRectSimple(cl, x, y, w, nMaxRows)) + return 0; + y += nMaxRows; + h -= nMaxRows; + } + + dh = (dy + MAX_SPLIT_TILE_SIZE <= y + h) ? + MAX_SPLIT_TILE_SIZE : (y + h - dy); + + for (dx = x; dx < x + w; dx += MAX_SPLIT_TILE_SIZE) { + + dw = (dx + MAX_SPLIT_TILE_SIZE <= x + w) ? + MAX_SPLIT_TILE_SIZE : (x + w - dx); + + if (CheckSolidTile(cl, dx, dy, dw, dh, &colorValue, FALSE)) { + + /* Get dimensions of solid-color area. */ + + FindBestSolidArea(cl, dx, dy, w - (dx - x), h - (dy - y), + colorValue, &w_best, &h_best); + + /* Make sure a solid rectangle is large enough + (or the whole rectangle is of the same color). */ + + if ( w_best * h_best != w * h && + w_best * h_best < MIN_SOLID_SUBRECT_SIZE ) + continue; + + /* Try to extend solid rectangle to maximum size. */ + + x_best = dx; y_best = dy; + ExtendSolidArea(cl, x, y, w, h, colorValue, + &x_best, &y_best, &w_best, &h_best); + + /* Send rectangles at top and left to solid-color area. */ + + if ( y_best != y && + !SendRectSimple(cl, x, y, w, y_best-y) ) + return FALSE; + if ( x_best != x && + !rfbSendRectEncodingTight(cl, x, y_best, + x_best-x, h_best) ) + return FALSE; + + /* Send solid-color rectangle. */ + + if (!SendTightHeader(cl, x_best, y_best, w_best, h_best)) + return FALSE; + + fbptr = (cl->screen->frameBuffer + + (cl->screen->paddedWidthInBytes * y_best) + + (x_best * (cl->screen->bitsPerPixel / 8))); + + (*cl->translateFn)(cl->translateLookupTable, &cl->screen->rfbServerFormat, + &cl->format, fbptr, tightBeforeBuf, + cl->screen->paddedWidthInBytes, 1, 1); + + if (!SendSolidRect(cl)) + return FALSE; + + /* Send remaining rectangles (at right and bottom). */ + + if ( x_best + w_best != x + w && + !rfbSendRectEncodingTight(cl, x_best+w_best, y_best, + w-(x_best-x)-w_best, h_best) ) + return FALSE; + if ( y_best + h_best != y + h && + !rfbSendRectEncodingTight(cl, x, y_best+h_best, + w, h-(y_best-y)-h_best) ) + return FALSE; + + /* Return after all recursive calls are done. */ + + return TRUE; + } + + } + + } + + /* No suitable solid-color rectangles found. */ + + return SendRectSimple(cl, x, y, w, h); +} + +static void +FindBestSolidArea(cl, x, y, w, h, colorValue, w_ptr, h_ptr) + rfbClientPtr cl; + int x, y, w, h; + CARD32 colorValue; + int *w_ptr, *h_ptr; +{ + int dx, dy, dw, dh; + int w_prev; + int w_best = 0, h_best = 0; + + w_prev = w; + + for (dy = y; dy < y + h; dy += MAX_SPLIT_TILE_SIZE) { + + dh = (dy + MAX_SPLIT_TILE_SIZE <= y + h) ? + MAX_SPLIT_TILE_SIZE : (y + h - dy); + dw = (w_prev > MAX_SPLIT_TILE_SIZE) ? + MAX_SPLIT_TILE_SIZE : w_prev; + + if (!CheckSolidTile(cl, x, dy, dw, dh, &colorValue, TRUE)) + break; + + for (dx = x + dw; dx < x + w_prev;) { + dw = (dx + MAX_SPLIT_TILE_SIZE <= x + w_prev) ? + MAX_SPLIT_TILE_SIZE : (x + w_prev - dx); + if (!CheckSolidTile(cl, dx, dy, dw, dh, &colorValue, TRUE)) + break; + dx += dw; + } + + w_prev = dx - x; + if (w_prev * (dy + dh - y) > w_best * h_best) { + w_best = w_prev; + h_best = dy + dh - y; + } + } + + *w_ptr = w_best; + *h_ptr = h_best; +} + +static void +ExtendSolidArea(cl, x, y, w, h, colorValue, x_ptr, y_ptr, w_ptr, h_ptr) + rfbClientPtr cl; + int x, y, w, h; + CARD32 colorValue; + int *x_ptr, *y_ptr, *w_ptr, *h_ptr; +{ + int cx, cy; + + /* Try to extend the area upwards. */ + for ( cy = *y_ptr - 1; + cy >= y && CheckSolidTile(cl, *x_ptr, cy, *w_ptr, 1, &colorValue, TRUE); + cy-- ); + *h_ptr += *y_ptr - (cy + 1); + *y_ptr = cy + 1; + + /* ... downwards. */ + for ( cy = *y_ptr + *h_ptr; + cy < y + h && + CheckSolidTile(cl, *x_ptr, cy, *w_ptr, 1, &colorValue, TRUE); + cy++ ); + *h_ptr += cy - (*y_ptr + *h_ptr); + + /* ... to the left. */ + for ( cx = *x_ptr - 1; + cx >= x && CheckSolidTile(cl, cx, *y_ptr, 1, *h_ptr, &colorValue, TRUE); + cx-- ); + *w_ptr += *x_ptr - (cx + 1); + *x_ptr = cx + 1; + + /* ... to the right. */ + for ( cx = *x_ptr + *w_ptr; + cx < x + w && + CheckSolidTile(cl, cx, *y_ptr, 1, *h_ptr, &colorValue, TRUE); + cx++ ); + *w_ptr += cx - (*x_ptr + *w_ptr); +} + +static Bool +CheckSolidTile(cl, x, y, w, h, colorPtr, needSameColor) + rfbClientPtr cl; + int x, y, w, h; + CARD32 *colorPtr; + Bool needSameColor; +{ + switch(cl->screen->rfbServerFormat.bitsPerPixel) { + case 32: + return CheckSolidTile32(cl, x, y, w, h, colorPtr, needSameColor); + case 16: + return CheckSolidTile16(cl, x, y, w, h, colorPtr, needSameColor); + default: + return CheckSolidTile8(cl, x, y, w, h, colorPtr, needSameColor); + } +} + +#define DEFINE_CHECK_SOLID_FUNCTION(bpp) \ + \ +static Bool \ +CheckSolidTile##bpp(cl, x, y, w, h, colorPtr, needSameColor) \ + rfbClientPtr cl; \ + int x, y, w, h; \ + CARD32 *colorPtr; \ + Bool needSameColor; \ +{ \ + CARD##bpp *fbptr; \ + CARD##bpp colorValue; \ + int dx, dy; \ + \ + fbptr = (CARD##bpp *) \ + &cl->screen->frameBuffer[y * cl->screen->paddedWidthInBytes + x * (bpp/8)]; \ + \ + colorValue = *fbptr; \ + if (needSameColor && (CARD32)colorValue != *colorPtr) \ + return FALSE; \ + \ + for (dy = 0; dy < h; dy++) { \ + for (dx = 0; dx < w; dx++) { \ + if (colorValue != fbptr[dx]) \ + return FALSE; \ + } \ + fbptr = (CARD##bpp *)((CARD8 *)fbptr + cl->screen->paddedWidthInBytes); \ + } \ + \ + *colorPtr = (CARD32)colorValue; \ + return TRUE; \ +} + +DEFINE_CHECK_SOLID_FUNCTION(8) +DEFINE_CHECK_SOLID_FUNCTION(16) +DEFINE_CHECK_SOLID_FUNCTION(32) + +static Bool +SendRectSimple(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + int maxBeforeSize, maxAfterSize; + int maxRectSize, maxRectWidth; + int subrectMaxWidth, subrectMaxHeight; + int dx, dy; + int rw, rh; + + maxRectSize = tightConf[compressLevel].maxRectSize; + maxRectWidth = tightConf[compressLevel].maxRectWidth; + + maxBeforeSize = maxRectSize * (cl->format.bitsPerPixel / 8); + maxAfterSize = maxBeforeSize + (maxBeforeSize + 99) / 100 + 12; + + if (tightBeforeBufSize < maxBeforeSize) { + tightBeforeBufSize = maxBeforeSize; + if (tightBeforeBuf == NULL) + tightBeforeBuf = (char *)malloc(tightBeforeBufSize); + else + tightBeforeBuf = (char *)realloc(tightBeforeBuf, + tightBeforeBufSize); + } + + if (tightAfterBufSize < maxAfterSize) { + tightAfterBufSize = maxAfterSize; + if (tightAfterBuf == NULL) + tightAfterBuf = (char *)malloc(tightAfterBufSize); + else + tightAfterBuf = (char *)realloc(tightAfterBuf, + tightAfterBufSize); + } + + if (w > maxRectWidth || w * h > maxRectSize) { + subrectMaxWidth = (w > maxRectWidth) ? maxRectWidth : w; + subrectMaxHeight = maxRectSize / subrectMaxWidth; + + for (dy = 0; dy < h; dy += subrectMaxHeight) { + for (dx = 0; dx < w; dx += maxRectWidth) { + rw = (dx + maxRectWidth < w) ? maxRectWidth : w - dx; + rh = (dy + subrectMaxHeight < h) ? subrectMaxHeight : h - dy; + if (!SendSubrect(cl, x+dx, y+dy, rw, rh)) + return FALSE; + } + } + } else { + if (!SendSubrect(cl, x, y, w, h)) + return FALSE; + } + + return TRUE; +} + +static Bool +SendSubrect(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + char *fbptr; + Bool success = FALSE; + + /* Send pending data if there is more than 128 bytes. */ + if (cl->ublen > 128) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + if (!SendTightHeader(cl, x, y, w, h)) + return FALSE; + + fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y) + + (x * (cl->screen->bitsPerPixel / 8))); + + (*cl->translateFn)(cl->translateLookupTable, &cl->screen->rfbServerFormat, + &cl->format, fbptr, tightBeforeBuf, + cl->screen->paddedWidthInBytes, w, h); + + paletteMaxColors = w * h / tightConf[compressLevel].idxMaxColorsDivisor; + if ( paletteMaxColors < 2 && + w * h >= tightConf[compressLevel].monoMinRectSize ) { + paletteMaxColors = 2; + } + switch (cl->format.bitsPerPixel) { + case 8: + FillPalette8(w * h); + break; + case 16: + FillPalette16(w * h); + break; + default: + FillPalette32(w * h); + } + + switch (paletteNumColors) { + case 0: + /* Truecolor image */ + if (DetectSmoothImage(cl, &cl->format, w, h)) { + if (qualityLevel != -1) { + success = SendJpegRect(cl, x, y, w, h, + tightConf[qualityLevel].jpegQuality); + } else { + success = SendGradientRect(cl, w, h); + } + } else { + success = SendFullColorRect(cl, w, h); + } + break; + case 1: + /* Solid rectangle */ + success = SendSolidRect(cl); + break; + case 2: + /* Two-color rectangle */ + success = SendMonoRect(cl, w, h); + break; + default: + /* Up to 256 different colors */ + if ( paletteNumColors > 96 && + qualityLevel != -1 && qualityLevel <= 3 && + DetectSmoothImage(cl, &cl->format, w, h) ) { + success = SendJpegRect(cl, x, y, w, h, + tightConf[qualityLevel].jpegQuality); + } else { + success = SendIndexedRect(cl, w, h); + } + } + return success; +} + +static Bool +SendTightHeader(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + rfbFramebufferUpdateRectHeader rect; + + if (cl->ublen + sz_rfbFramebufferUpdateRectHeader > UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + rect.r.x = Swap16IfLE(x); + rect.r.y = Swap16IfLE(y); + rect.r.w = Swap16IfLE(w); + rect.r.h = Swap16IfLE(h); + rect.encoding = Swap32IfLE(rfbEncodingTight); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect, + sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + cl->rfbRectanglesSent[rfbEncodingTight]++; + cl->rfbBytesSent[rfbEncodingTight] += sz_rfbFramebufferUpdateRectHeader; + + return TRUE; +} + +/* + * Subencoding implementations. + */ + +static Bool +SendSolidRect(cl) + rfbClientPtr cl; +{ + int len; + + if (usePixelFormat24) { + Pack24(cl, tightBeforeBuf, &cl->format, 1); + len = 3; + } else + len = cl->format.bitsPerPixel / 8; + + if (cl->ublen + 1 + len > UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + cl->updateBuf[cl->ublen++] = (char)(rfbTightFill << 4); + memcpy (&cl->updateBuf[cl->ublen], tightBeforeBuf, len); + cl->ublen += len; + + cl->rfbBytesSent[rfbEncodingTight] += len + 1; + + return TRUE; +} + +static Bool +SendMonoRect(cl, w, h) + rfbClientPtr cl; + int w, h; +{ + int streamId = 1; + int paletteLen, dataLen; + + if ( cl->ublen + TIGHT_MIN_TO_COMPRESS + 6 + + 2 * cl->format.bitsPerPixel / 8 > UPDATE_BUF_SIZE ) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + /* Prepare tight encoding header. */ + dataLen = (w + 7) / 8; + dataLen *= h; + + cl->updateBuf[cl->ublen++] = (streamId | rfbTightExplicitFilter) << 4; + cl->updateBuf[cl->ublen++] = rfbTightFilterPalette; + cl->updateBuf[cl->ublen++] = 1; + + /* Prepare palette, convert image. */ + switch (cl->format.bitsPerPixel) { + + case 32: + EncodeMonoRect32((CARD8 *)tightBeforeBuf, w, h); + + ((CARD32 *)tightAfterBuf)[0] = monoBackground; + ((CARD32 *)tightAfterBuf)[1] = monoForeground; + if (usePixelFormat24) { + Pack24(cl, tightAfterBuf, &cl->format, 2); + paletteLen = 6; + } else + paletteLen = 8; + + memcpy(&cl->updateBuf[cl->ublen], tightAfterBuf, paletteLen); + cl->ublen += paletteLen; + cl->rfbBytesSent[rfbEncodingTight] += 3 + paletteLen; + break; + + case 16: + EncodeMonoRect16((CARD8 *)tightBeforeBuf, w, h); + + ((CARD16 *)tightAfterBuf)[0] = (CARD16)monoBackground; + ((CARD16 *)tightAfterBuf)[1] = (CARD16)monoForeground; + + memcpy(&cl->updateBuf[cl->ublen], tightAfterBuf, 4); + cl->ublen += 4; + cl->rfbBytesSent[rfbEncodingTight] += 7; + break; + + default: + EncodeMonoRect8((CARD8 *)tightBeforeBuf, w, h); + + cl->updateBuf[cl->ublen++] = (char)monoBackground; + cl->updateBuf[cl->ublen++] = (char)monoForeground; + cl->rfbBytesSent[rfbEncodingTight] += 5; + } + + return CompressData(cl, streamId, dataLen, + tightConf[compressLevel].monoZlibLevel, + Z_DEFAULT_STRATEGY); +} + +static Bool +SendIndexedRect(cl, w, h) + rfbClientPtr cl; + int w, h; +{ + int streamId = 2; + int i, entryLen; + + if ( cl->ublen + TIGHT_MIN_TO_COMPRESS + 6 + + paletteNumColors * cl->format.bitsPerPixel / 8 > + UPDATE_BUF_SIZE ) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + /* Prepare tight encoding header. */ + cl->updateBuf[cl->ublen++] = (streamId | rfbTightExplicitFilter) << 4; + cl->updateBuf[cl->ublen++] = rfbTightFilterPalette; + cl->updateBuf[cl->ublen++] = (char)(paletteNumColors - 1); + + /* Prepare palette, convert image. */ + switch (cl->format.bitsPerPixel) { + + case 32: + EncodeIndexedRect32((CARD8 *)tightBeforeBuf, w * h); + + for (i = 0; i < paletteNumColors; i++) { + ((CARD32 *)tightAfterBuf)[i] = + palette.entry[i].listNode->rgb; + } + if (usePixelFormat24) { + Pack24(cl, tightAfterBuf, &cl->format, paletteNumColors); + entryLen = 3; + } else + entryLen = 4; + + memcpy(&cl->updateBuf[cl->ublen], tightAfterBuf, paletteNumColors * entryLen); + cl->ublen += paletteNumColors * entryLen; + cl->rfbBytesSent[rfbEncodingTight] += 3 + paletteNumColors * entryLen; + break; + + case 16: + EncodeIndexedRect16((CARD8 *)tightBeforeBuf, w * h); + + for (i = 0; i < paletteNumColors; i++) { + ((CARD16 *)tightAfterBuf)[i] = + (CARD16)palette.entry[i].listNode->rgb; + } + + memcpy(&cl->updateBuf[cl->ublen], tightAfterBuf, paletteNumColors * 2); + cl->ublen += paletteNumColors * 2; + cl->rfbBytesSent[rfbEncodingTight] += 3 + paletteNumColors * 2; + break; + + default: + return FALSE; /* Should never happen. */ + } + + return CompressData(cl, streamId, w * h, + tightConf[compressLevel].idxZlibLevel, + Z_DEFAULT_STRATEGY); +} + +static Bool +SendFullColorRect(cl, w, h) + rfbClientPtr cl; + int w, h; +{ + int streamId = 0; + int len; + + if (cl->ublen + TIGHT_MIN_TO_COMPRESS + 1 > UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + cl->updateBuf[cl->ublen++] = 0x00; /* stream id = 0, no flushing, no filter */ + cl->rfbBytesSent[rfbEncodingTight]++; + + if (usePixelFormat24) { + Pack24(cl, tightBeforeBuf, &cl->format, w * h); + len = 3; + } else + len = cl->format.bitsPerPixel / 8; + + return CompressData(cl, streamId, w * h * len, + tightConf[compressLevel].rawZlibLevel, + Z_DEFAULT_STRATEGY); +} + +static Bool +SendGradientRect(cl, w, h) + rfbClientPtr cl; + int w, h; +{ + int streamId = 3; + int len; + + if (cl->format.bitsPerPixel == 8) + return SendFullColorRect(cl, w, h); + + if (cl->ublen + TIGHT_MIN_TO_COMPRESS + 2 > UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + if (prevRowBuf == NULL) + prevRowBuf = (int *)malloc(2048 * 3 * sizeof(int)); + + cl->updateBuf[cl->ublen++] = (streamId | rfbTightExplicitFilter) << 4; + cl->updateBuf[cl->ublen++] = rfbTightFilterGradient; + cl->rfbBytesSent[rfbEncodingTight] += 2; + + if (usePixelFormat24) { + FilterGradient24(cl, tightBeforeBuf, &cl->format, w, h); + len = 3; + } else if (cl->format.bitsPerPixel == 32) { + FilterGradient32(cl, (CARD32 *)tightBeforeBuf, &cl->format, w, h); + len = 4; + } else { + FilterGradient16(cl, (CARD16 *)tightBeforeBuf, &cl->format, w, h); + len = 2; + } + + return CompressData(cl, streamId, w * h * len, + tightConf[compressLevel].gradientZlibLevel, + Z_FILTERED); +} + +static Bool +CompressData(cl, streamId, dataLen, zlibLevel, zlibStrategy) + rfbClientPtr cl; + int streamId, dataLen, zlibLevel, zlibStrategy; +{ + z_streamp pz; + int err; + + if (dataLen < TIGHT_MIN_TO_COMPRESS) { + memcpy(&cl->updateBuf[cl->ublen], tightBeforeBuf, dataLen); + cl->ublen += dataLen; + cl->rfbBytesSent[rfbEncodingTight] += dataLen; + return TRUE; + } + + pz = &cl->zsStruct[streamId]; + + /* Initialize compression stream if needed. */ + if (!cl->zsActive[streamId]) { + pz->zalloc = Z_NULL; + pz->zfree = Z_NULL; + pz->opaque = Z_NULL; + + err = deflateInit2 (pz, zlibLevel, Z_DEFLATED, MAX_WBITS, + MAX_MEM_LEVEL, zlibStrategy); + if (err != Z_OK) + return FALSE; + + cl->zsActive[streamId] = TRUE; + cl->zsLevel[streamId] = zlibLevel; + } + + /* Prepare buffer pointers. */ + pz->next_in = (Bytef *)tightBeforeBuf; + pz->avail_in = dataLen; + pz->next_out = (Bytef *)tightAfterBuf; + pz->avail_out = tightAfterBufSize; + + /* Change compression parameters if needed. */ + if (zlibLevel != cl->zsLevel[streamId]) { + if (deflateParams (pz, zlibLevel, zlibStrategy) != Z_OK) { + return FALSE; + } + cl->zsLevel[streamId] = zlibLevel; + } + + /* Actual compression. */ + if ( deflate (pz, Z_SYNC_FLUSH) != Z_OK || + pz->avail_in != 0 || pz->avail_out == 0 ) { + return FALSE; + } + + return SendCompressedData(cl, tightAfterBufSize - pz->avail_out); +} + +static Bool SendCompressedData(cl, compressedLen) + rfbClientPtr cl; + int compressedLen; +{ + int i, portionLen; + + cl->updateBuf[cl->ublen++] = compressedLen & 0x7F; + cl->rfbBytesSent[rfbEncodingTight]++; + if (compressedLen > 0x7F) { + cl->updateBuf[cl->ublen-1] |= 0x80; + cl->updateBuf[cl->ublen++] = compressedLen >> 7 & 0x7F; + cl->rfbBytesSent[rfbEncodingTight]++; + if (compressedLen > 0x3FFF) { + cl->updateBuf[cl->ublen-1] |= 0x80; + cl->updateBuf[cl->ublen++] = compressedLen >> 14 & 0xFF; + cl->rfbBytesSent[rfbEncodingTight]++; + } + } + + portionLen = UPDATE_BUF_SIZE; + for (i = 0; i < compressedLen; i += portionLen) { + if (i + portionLen > compressedLen) { + portionLen = compressedLen - i; + } + if (cl->ublen + portionLen > UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + memcpy(&cl->updateBuf[cl->ublen], &tightAfterBuf[i], portionLen); + cl->ublen += portionLen; + } + portionLen = UPDATE_BUF_SIZE; + cl->rfbBytesSent[rfbEncodingTight] += compressedLen; + return TRUE; +} + +/* + * Code to determine how many different colors used in rectangle. + */ + +static void +FillPalette8(count) + int count; +{ + CARD8 *data = (CARD8 *)tightBeforeBuf; + CARD8 c0, c1; + int i, n0, n1; + + paletteNumColors = 0; + + c0 = data[0]; + for (i = 1; i < count && data[i] == c0; i++); + if (i == count) { + paletteNumColors = 1; + return; /* Solid rectangle */ + } + + if (paletteMaxColors < 2) + return; + + n0 = i; + c1 = data[i]; + n1 = 0; + for (i++; i < count; i++) { + if (data[i] == c0) { + n0++; + } else if (data[i] == c1) { + n1++; + } else + break; + } + if (i == count) { + if (n0 > n1) { + monoBackground = (CARD32)c0; + monoForeground = (CARD32)c1; + } else { + monoBackground = (CARD32)c1; + monoForeground = (CARD32)c0; + } + paletteNumColors = 2; /* Two colors */ + } +} + +#define DEFINE_FILL_PALETTE_FUNCTION(bpp) \ + \ +static void \ +FillPalette##bpp(count) \ + int count; \ +{ \ + CARD##bpp *data = (CARD##bpp *)tightBeforeBuf; \ + CARD##bpp c0, c1, ci; \ + int i, n0, n1, ni; \ + \ + c0 = data[0]; \ + for (i = 1; i < count && data[i] == c0; i++); \ + if (i >= count) { \ + paletteNumColors = 1; /* Solid rectangle */ \ + return; \ + } \ + \ + if (paletteMaxColors < 2) { \ + paletteNumColors = 0; /* Full-color encoding preferred */ \ + return; \ + } \ + \ + n0 = i; \ + c1 = data[i]; \ + n1 = 0; \ + for (i++; i < count; i++) { \ + ci = data[i]; \ + if (ci == c0) { \ + n0++; \ + } else if (ci == c1) { \ + n1++; \ + } else \ + break; \ + } \ + if (i >= count) { \ + if (n0 > n1) { \ + monoBackground = (CARD32)c0; \ + monoForeground = (CARD32)c1; \ + } else { \ + monoBackground = (CARD32)c1; \ + monoForeground = (CARD32)c0; \ + } \ + paletteNumColors = 2; /* Two colors */ \ + return; \ + } \ + \ + PaletteReset(); \ + PaletteInsert (c0, (CARD32)n0, bpp); \ + PaletteInsert (c1, (CARD32)n1, bpp); \ + \ + ni = 1; \ + for (i++; i < count; i++) { \ + if (data[i] == ci) { \ + ni++; \ + } else { \ + if (!PaletteInsert (ci, (CARD32)ni, bpp)) \ + return; \ + ci = data[i]; \ + ni = 1; \ + } \ + } \ + PaletteInsert (ci, (CARD32)ni, bpp); \ +} + +DEFINE_FILL_PALETTE_FUNCTION(16) +DEFINE_FILL_PALETTE_FUNCTION(32) + + +/* + * Functions to operate with palette structures. + */ + +#define HASH_FUNC16(rgb) ((int)(((rgb >> 8) + rgb) & 0xFF)) +#define HASH_FUNC32(rgb) ((int)(((rgb >> 16) + (rgb >> 8)) & 0xFF)) + +static void +PaletteReset(void) +{ + paletteNumColors = 0; + memset(palette.hash, 0, 256 * sizeof(COLOR_LIST *)); +} + +static int +PaletteInsert(rgb, numPixels, bpp) + CARD32 rgb; + int numPixels; + int bpp; +{ + COLOR_LIST *pnode; + COLOR_LIST *prev_pnode = NULL; + int hash_key, idx, new_idx, count; + + hash_key = (bpp == 16) ? HASH_FUNC16(rgb) : HASH_FUNC32(rgb); + + pnode = palette.hash[hash_key]; + + while (pnode != NULL) { + if (pnode->rgb == rgb) { + /* Such palette entry already exists. */ + new_idx = idx = pnode->idx; + count = palette.entry[idx].numPixels + numPixels; + if (new_idx && palette.entry[new_idx-1].numPixels < count) { + do { + palette.entry[new_idx] = palette.entry[new_idx-1]; + palette.entry[new_idx].listNode->idx = new_idx; + new_idx--; + } + while (new_idx && palette.entry[new_idx-1].numPixels < count); + palette.entry[new_idx].listNode = pnode; + pnode->idx = new_idx; + } + palette.entry[new_idx].numPixels = count; + return paletteNumColors; + } + prev_pnode = pnode; + pnode = pnode->next; + } + + /* Check if palette is full. */ + if (paletteNumColors == 256 || paletteNumColors == paletteMaxColors) { + paletteNumColors = 0; + return 0; + } + + /* Move palette entries with lesser pixel counts. */ + for ( idx = paletteNumColors; + idx > 0 && palette.entry[idx-1].numPixels < numPixels; + idx-- ) { + palette.entry[idx] = palette.entry[idx-1]; + palette.entry[idx].listNode->idx = idx; + } + + /* Add new palette entry into the freed slot. */ + pnode = &palette.list[paletteNumColors]; + if (prev_pnode != NULL) { + prev_pnode->next = pnode; + } else { + palette.hash[hash_key] = pnode; + } + pnode->next = NULL; + pnode->idx = idx; + pnode->rgb = rgb; + palette.entry[idx].listNode = pnode; + palette.entry[idx].numPixels = numPixels; + + return (++paletteNumColors); +} + + +/* + * Converting 32-bit color samples into 24-bit colors. + * Should be called only when redMax, greenMax and blueMax are 255. + * Color components assumed to be byte-aligned. + */ + +static void Pack24(cl, buf, fmt, count) + rfbClientPtr cl; + char *buf; + rfbPixelFormat *fmt; + int count; +{ + CARD32 *buf32; + CARD32 pix; + int r_shift, g_shift, b_shift; + + buf32 = (CARD32 *)buf; + + if (!cl->screen->rfbServerFormat.bigEndian == !fmt->bigEndian) { + r_shift = fmt->redShift; + g_shift = fmt->greenShift; + b_shift = fmt->blueShift; + } else { + r_shift = 24 - fmt->redShift; + g_shift = 24 - fmt->greenShift; + b_shift = 24 - fmt->blueShift; + } + + while (count--) { + pix = *buf32++; + *buf++ = (char)(pix >> r_shift); + *buf++ = (char)(pix >> g_shift); + *buf++ = (char)(pix >> b_shift); + } +} + + +/* + * Converting truecolor samples into palette indices. + */ + +#define DEFINE_IDX_ENCODE_FUNCTION(bpp) \ + \ +static void \ +EncodeIndexedRect##bpp(buf, count) \ + CARD8 *buf; \ + int count; \ +{ \ + COLOR_LIST *pnode; \ + CARD##bpp *src; \ + CARD##bpp rgb; \ + int rep = 0; \ + \ + src = (CARD##bpp *) buf; \ + \ + while (count--) { \ + rgb = *src++; \ + while (count && *src == rgb) { \ + rep++, src++, count--; \ + } \ + pnode = palette.hash[HASH_FUNC##bpp(rgb)]; \ + while (pnode != NULL) { \ + if ((CARD##bpp)pnode->rgb == rgb) { \ + *buf++ = (CARD8)pnode->idx; \ + while (rep) { \ + *buf++ = (CARD8)pnode->idx; \ + rep--; \ + } \ + break; \ + } \ + pnode = pnode->next; \ + } \ + } \ +} + +DEFINE_IDX_ENCODE_FUNCTION(16) +DEFINE_IDX_ENCODE_FUNCTION(32) + +#define DEFINE_MONO_ENCODE_FUNCTION(bpp) \ + \ +static void \ +EncodeMonoRect##bpp(buf, w, h) \ + CARD8 *buf; \ + int w, h; \ +{ \ + CARD##bpp *ptr; \ + CARD##bpp bg; \ + unsigned int value, mask; \ + int aligned_width; \ + int x, y, bg_bits; \ + \ + ptr = (CARD##bpp *) buf; \ + bg = (CARD##bpp) monoBackground; \ + aligned_width = w - w % 8; \ + \ + for (y = 0; y < h; y++) { \ + for (x = 0; x < aligned_width; x += 8) { \ + for (bg_bits = 0; bg_bits < 8; bg_bits++) { \ + if (*ptr++ != bg) \ + break; \ + } \ + if (bg_bits == 8) { \ + *buf++ = 0; \ + continue; \ + } \ + mask = 0x80 >> bg_bits; \ + value = mask; \ + for (bg_bits++; bg_bits < 8; bg_bits++) { \ + mask >>= 1; \ + if (*ptr++ != bg) { \ + value |= mask; \ + } \ + } \ + *buf++ = (CARD8)value; \ + } \ + \ + mask = 0x80; \ + value = 0; \ + if (x >= w) \ + continue; \ + \ + for (; x < w; x++) { \ + if (*ptr++ != bg) { \ + value |= mask; \ + } \ + mask >>= 1; \ + } \ + *buf++ = (CARD8)value; \ + } \ +} + +DEFINE_MONO_ENCODE_FUNCTION(8) +DEFINE_MONO_ENCODE_FUNCTION(16) +DEFINE_MONO_ENCODE_FUNCTION(32) + + +/* + * ``Gradient'' filter for 24-bit color samples. + * Should be called only when redMax, greenMax and blueMax are 255. + * Color components assumed to be byte-aligned. + */ + +static void +FilterGradient24(cl, buf, fmt, w, h) + rfbClientPtr cl; + char *buf; + rfbPixelFormat *fmt; + int w, h; +{ + CARD32 *buf32; + CARD32 pix32; + int *prevRowPtr; + int shiftBits[3]; + int pixHere[3], pixUpper[3], pixLeft[3], pixUpperLeft[3]; + int prediction; + int x, y, c; + + buf32 = (CARD32 *)buf; + memset (prevRowBuf, 0, w * 3 * sizeof(int)); + + if (!cl->screen->rfbServerFormat.bigEndian == !fmt->bigEndian) { + shiftBits[0] = fmt->redShift; + shiftBits[1] = fmt->greenShift; + shiftBits[2] = fmt->blueShift; + } else { + shiftBits[0] = 24 - fmt->redShift; + shiftBits[1] = 24 - fmt->greenShift; + shiftBits[2] = 24 - fmt->blueShift; + } + + for (y = 0; y < h; y++) { + for (c = 0; c < 3; c++) { + pixUpper[c] = 0; + pixHere[c] = 0; + } + prevRowPtr = prevRowBuf; + for (x = 0; x < w; x++) { + pix32 = *buf32++; + for (c = 0; c < 3; c++) { + pixUpperLeft[c] = pixUpper[c]; + pixLeft[c] = pixHere[c]; + pixUpper[c] = *prevRowPtr; + pixHere[c] = (int)(pix32 >> shiftBits[c] & 0xFF); + *prevRowPtr++ = pixHere[c]; + + prediction = pixLeft[c] + pixUpper[c] - pixUpperLeft[c]; + if (prediction < 0) { + prediction = 0; + } else if (prediction > 0xFF) { + prediction = 0xFF; + } + *buf++ = (char)(pixHere[c] - prediction); + } + } + } +} + + +/* + * ``Gradient'' filter for other color depths. + */ + +#define DEFINE_GRADIENT_FILTER_FUNCTION(bpp) \ + \ +static void \ +FilterGradient##bpp(cl, buf, fmt, w, h) \ + rfbClientPtr cl; \ + CARD##bpp *buf; \ + rfbPixelFormat *fmt; \ + int w, h; \ +{ \ + CARD##bpp pix, diff; \ + Bool endianMismatch; \ + int *prevRowPtr; \ + int maxColor[3], shiftBits[3]; \ + int pixHere[3], pixUpper[3], pixLeft[3], pixUpperLeft[3]; \ + int prediction; \ + int x, y, c; \ + \ + memset (prevRowBuf, 0, w * 3 * sizeof(int)); \ + \ + endianMismatch = (!cl->screen->rfbServerFormat.bigEndian != !fmt->bigEndian); \ + \ + maxColor[0] = fmt->redMax; \ + maxColor[1] = fmt->greenMax; \ + maxColor[2] = fmt->blueMax; \ + shiftBits[0] = fmt->redShift; \ + shiftBits[1] = fmt->greenShift; \ + shiftBits[2] = fmt->blueShift; \ + \ + for (y = 0; y < h; y++) { \ + for (c = 0; c < 3; c++) { \ + pixUpper[c] = 0; \ + pixHere[c] = 0; \ + } \ + prevRowPtr = prevRowBuf; \ + for (x = 0; x < w; x++) { \ + pix = *buf; \ + if (endianMismatch) { \ + pix = Swap##bpp(pix); \ + } \ + diff = 0; \ + for (c = 0; c < 3; c++) { \ + pixUpperLeft[c] = pixUpper[c]; \ + pixLeft[c] = pixHere[c]; \ + pixUpper[c] = *prevRowPtr; \ + pixHere[c] = (int)(pix >> shiftBits[c] & maxColor[c]); \ + *prevRowPtr++ = pixHere[c]; \ + \ + prediction = pixLeft[c] + pixUpper[c] - pixUpperLeft[c]; \ + if (prediction < 0) { \ + prediction = 0; \ + } else if (prediction > maxColor[c]) { \ + prediction = maxColor[c]; \ + } \ + diff |= ((pixHere[c] - prediction) & maxColor[c]) \ + << shiftBits[c]; \ + } \ + if (endianMismatch) { \ + diff = Swap##bpp(diff); \ + } \ + *buf++ = diff; \ + } \ + } \ +} + +DEFINE_GRADIENT_FILTER_FUNCTION(16) +DEFINE_GRADIENT_FILTER_FUNCTION(32) + + +/* + * Code to guess if given rectangle is suitable for smooth image + * compression (by applying "gradient" filter or JPEG coder). + */ + +#define JPEG_MIN_RECT_SIZE 4096 + +#define DETECT_SUBROW_WIDTH 7 +#define DETECT_MIN_WIDTH 8 +#define DETECT_MIN_HEIGHT 8 + +static int +DetectSmoothImage (cl, fmt, w, h) + rfbClientPtr cl; + rfbPixelFormat *fmt; + int w, h; +{ + long avgError; + + if ( cl->screen->rfbServerFormat.bitsPerPixel == 8 || fmt->bitsPerPixel == 8 || + w < DETECT_MIN_WIDTH || h < DETECT_MIN_HEIGHT ) { + return 0; + } + + if (qualityLevel != -1) { + if (w * h < JPEG_MIN_RECT_SIZE) { + return 0; + } + } else { + if ( rfbTightDisableGradient || + w * h < tightConf[compressLevel].gradientMinRectSize ) { + return 0; + } + } + + if (fmt->bitsPerPixel == 32) { + if (usePixelFormat24) { + avgError = DetectSmoothImage24(cl, fmt, w, h); + if (qualityLevel != -1) { + return (avgError < tightConf[qualityLevel].jpegThreshold24); + } + return (avgError < tightConf[compressLevel].gradientThreshold24); + } else { + avgError = DetectSmoothImage32(cl, fmt, w, h); + } + } else { + avgError = DetectSmoothImage16(cl, fmt, w, h); + } + if (qualityLevel != -1) { + return (avgError < tightConf[qualityLevel].jpegThreshold); + } + return (avgError < tightConf[compressLevel].gradientThreshold); +} + +static unsigned long +DetectSmoothImage24 (cl, fmt, w, h) + rfbClientPtr cl; + rfbPixelFormat *fmt; + int w, h; +{ + int off; + int x, y, d, dx, c; + int diffStat[256]; + int pixelCount = 0; + int pix, left[3]; + unsigned long avgError; + + /* If client is big-endian, color samples begin from the second + byte (offset 1) of a 32-bit pixel value. */ + off = (fmt->bigEndian != 0); + + memset(diffStat, 0, 256*sizeof(int)); + + y = 0, x = 0; + while (y < h && x < w) { + for (d = 0; d < h - y && d < w - x - DETECT_SUBROW_WIDTH; d++) { + for (c = 0; c < 3; c++) { + left[c] = (int)tightBeforeBuf[((y+d)*w+x+d)*4+off+c] & 0xFF; + } + for (dx = 1; dx <= DETECT_SUBROW_WIDTH; dx++) { + for (c = 0; c < 3; c++) { + pix = (int)tightBeforeBuf[((y+d)*w+x+d+dx)*4+off+c] & 0xFF; + diffStat[abs(pix - left[c])]++; + left[c] = pix; + } + pixelCount++; + } + } + if (w > h) { + x += h; + y = 0; + } else { + x = 0; + y += w; + } + } + + if (diffStat[0] * 33 / pixelCount >= 95) + return 0; + + avgError = 0; + for (c = 1; c < 8; c++) { + avgError += (unsigned long)diffStat[c] * (unsigned long)(c * c); + if (diffStat[c] == 0 || diffStat[c] > diffStat[c-1] * 2) + return 0; + } + for (; c < 256; c++) { + avgError += (unsigned long)diffStat[c] * (unsigned long)(c * c); + } + avgError /= (pixelCount * 3 - diffStat[0]); + + return avgError; +} + +#define DEFINE_DETECT_FUNCTION(bpp) \ + \ +static unsigned long \ +DetectSmoothImage##bpp (cl, fmt, w, h) \ + rfbClientPtr cl; \ + rfbPixelFormat *fmt; \ + int w, h; \ +{ \ + Bool endianMismatch; \ + CARD##bpp pix; \ + int maxColor[3], shiftBits[3]; \ + int x, y, d, dx, c; \ + int diffStat[256]; \ + int pixelCount = 0; \ + int sample, sum, left[3]; \ + unsigned long avgError; \ + \ + endianMismatch = (!cl->screen->rfbServerFormat.bigEndian != !fmt->bigEndian); \ + \ + maxColor[0] = fmt->redMax; \ + maxColor[1] = fmt->greenMax; \ + maxColor[2] = fmt->blueMax; \ + shiftBits[0] = fmt->redShift; \ + shiftBits[1] = fmt->greenShift; \ + shiftBits[2] = fmt->blueShift; \ + \ + memset(diffStat, 0, 256*sizeof(int)); \ + \ + y = 0, x = 0; \ + while (y < h && x < w) { \ + for (d = 0; d < h - y && d < w - x - DETECT_SUBROW_WIDTH; d++) { \ + pix = ((CARD##bpp *)tightBeforeBuf)[(y+d)*w+x+d]; \ + if (endianMismatch) { \ + pix = Swap##bpp(pix); \ + } \ + for (c = 0; c < 3; c++) { \ + left[c] = (int)(pix >> shiftBits[c] & maxColor[c]); \ + } \ + for (dx = 1; dx <= DETECT_SUBROW_WIDTH; dx++) { \ + pix = ((CARD##bpp *)tightBeforeBuf)[(y+d)*w+x+d+dx]; \ + if (endianMismatch) { \ + pix = Swap##bpp(pix); \ + } \ + sum = 0; \ + for (c = 0; c < 3; c++) { \ + sample = (int)(pix >> shiftBits[c] & maxColor[c]); \ + sum += abs(sample - left[c]); \ + left[c] = sample; \ + } \ + if (sum > 255) \ + sum = 255; \ + diffStat[sum]++; \ + pixelCount++; \ + } \ + } \ + if (w > h) { \ + x += h; \ + y = 0; \ + } else { \ + x = 0; \ + y += w; \ + } \ + } \ + \ + if ((diffStat[0] + diffStat[1]) * 100 / pixelCount >= 90) \ + return 0; \ + \ + avgError = 0; \ + for (c = 1; c < 8; c++) { \ + avgError += (unsigned long)diffStat[c] * (unsigned long)(c * c); \ + if (diffStat[c] == 0 || diffStat[c] > diffStat[c-1] * 2) \ + return 0; \ + } \ + for (; c < 256; c++) { \ + avgError += (unsigned long)diffStat[c] * (unsigned long)(c * c); \ + } \ + avgError /= (pixelCount - diffStat[0]); \ + \ + return avgError; \ +} + +DEFINE_DETECT_FUNCTION(16) +DEFINE_DETECT_FUNCTION(32) + + +/* + * JPEG compression stuff. + */ + +static struct jpeg_destination_mgr jpegDstManager; +static Bool jpegError; +static int jpegDstDataLen; + +static Bool +SendJpegRect(cl, x, y, w, h, quality) + rfbClientPtr cl; + int x, y, w, h; + int quality; +{ + struct jpeg_compress_struct cinfo; + struct jpeg_error_mgr jerr; + CARD8 *srcBuf; + JSAMPROW rowPointer[1]; + int dy; + + if (cl->screen->rfbServerFormat.bitsPerPixel == 8) + return SendFullColorRect(cl, w, h); + + srcBuf = (CARD8 *)malloc(w * 3); + if (srcBuf == NULL) { + return SendFullColorRect(cl, w, h); + } + rowPointer[0] = srcBuf; + + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_compress(&cinfo); + + cinfo.image_width = w; + cinfo.image_height = h; + cinfo.input_components = 3; + cinfo.in_color_space = JCS_RGB; + + jpeg_set_defaults(&cinfo); + jpeg_set_quality(&cinfo, quality, TRUE); + + JpegSetDstManager (&cinfo); + + jpeg_start_compress(&cinfo, TRUE); + + for (dy = 0; dy < h; dy++) { + PrepareRowForJpeg(cl, srcBuf, x, y + dy, w); + jpeg_write_scanlines(&cinfo, rowPointer, 1); + if (jpegError) + break; + } + + if (!jpegError) + jpeg_finish_compress(&cinfo); + + jpeg_destroy_compress(&cinfo); + free(srcBuf); + + if (jpegError) + return SendFullColorRect(cl, w, h); + + if (cl->ublen + TIGHT_MIN_TO_COMPRESS + 1 > UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + cl->updateBuf[cl->ublen++] = (char)(rfbTightJpeg << 4); + cl->rfbBytesSent[rfbEncodingTight]++; + + return SendCompressedData(cl, jpegDstDataLen); +} + +static void +PrepareRowForJpeg(cl, dst, x, y, count) + rfbClientPtr cl; + CARD8 *dst; + int x, y, count; +{ + if (cl->screen->rfbServerFormat.bitsPerPixel == 32) { + if ( cl->screen->rfbServerFormat.redMax == 0xFF && + cl->screen->rfbServerFormat.greenMax == 0xFF && + cl->screen->rfbServerFormat.blueMax == 0xFF ) { + PrepareRowForJpeg24(cl, dst, x, y, count); + } else { + PrepareRowForJpeg32(cl, dst, x, y, count); + } + } else { + /* 16 bpp assumed. */ + PrepareRowForJpeg16(cl, dst, x, y, count); + } +} + +static void +PrepareRowForJpeg24(cl, dst, x, y, count) + rfbClientPtr cl; + CARD8 *dst; + int x, y, count; +{ + CARD32 *fbptr; + CARD32 pix; + + fbptr = (CARD32 *) + &cl->screen->frameBuffer[y * cl->screen->paddedWidthInBytes + x * 4]; + + while (count--) { + pix = *fbptr++; + *dst++ = (CARD8)(pix >> cl->screen->rfbServerFormat.redShift); + *dst++ = (CARD8)(pix >> cl->screen->rfbServerFormat.greenShift); + *dst++ = (CARD8)(pix >> cl->screen->rfbServerFormat.blueShift); + } +} + +#define DEFINE_JPEG_GET_ROW_FUNCTION(bpp) \ + \ +static void \ +PrepareRowForJpeg##bpp(cl, dst, x, y, count) \ + rfbClientPtr cl; \ + CARD8 *dst; \ + int x, y, count; \ +{ \ + CARD##bpp *fbptr; \ + CARD##bpp pix; \ + int inRed, inGreen, inBlue; \ + \ + fbptr = (CARD##bpp *) \ + &cl->screen->frameBuffer[y * cl->screen->paddedWidthInBytes + \ + x * (bpp / 8)]; \ + \ + while (count--) { \ + pix = *fbptr++; \ + \ + inRed = (int) \ + (pix >> cl->screen->rfbServerFormat.redShift & cl->screen->rfbServerFormat.redMax); \ + inGreen = (int) \ + (pix >> cl->screen->rfbServerFormat.greenShift & cl->screen->rfbServerFormat.greenMax); \ + inBlue = (int) \ + (pix >> cl->screen->rfbServerFormat.blueShift & cl->screen->rfbServerFormat.blueMax); \ + \ + *dst++ = (CARD8)((inRed * 255 + cl->screen->rfbServerFormat.redMax / 2) / \ + cl->screen->rfbServerFormat.redMax); \ + *dst++ = (CARD8)((inGreen * 255 + cl->screen->rfbServerFormat.greenMax / 2) / \ + cl->screen->rfbServerFormat.greenMax); \ + *dst++ = (CARD8)((inBlue * 255 + cl->screen->rfbServerFormat.blueMax / 2) / \ + cl->screen->rfbServerFormat.blueMax); \ + } \ +} + +DEFINE_JPEG_GET_ROW_FUNCTION(16) +DEFINE_JPEG_GET_ROW_FUNCTION(32) + +/* + * Destination manager implementation for JPEG library. + */ + +static void +JpegInitDestination(j_compress_ptr cinfo) +{ + jpegError = FALSE; + jpegDstManager.next_output_byte = (JOCTET *)tightAfterBuf; + jpegDstManager.free_in_buffer = (size_t)tightAfterBufSize; +} + +static boolean +JpegEmptyOutputBuffer(j_compress_ptr cinfo) +{ + jpegError = TRUE; + jpegDstManager.next_output_byte = (JOCTET *)tightAfterBuf; + jpegDstManager.free_in_buffer = (size_t)tightAfterBufSize; + + return TRUE; +} + +static void +JpegTermDestination(j_compress_ptr cinfo) +{ + jpegDstDataLen = tightAfterBufSize - jpegDstManager.free_in_buffer; +} + +static void +JpegSetDstManager(j_compress_ptr cinfo) +{ + jpegDstManager.init_destination = JpegInitDestination; + jpegDstManager.empty_output_buffer = JpegEmptyOutputBuffer; + jpegDstManager.term_destination = JpegTermDestination; + cinfo->dest = &jpegDstManager; +} + diff --git a/krfb/libvncserver/translate.c b/krfb/libvncserver/translate.c new file mode 100644 index 00000000..d6021d57 --- /dev/null +++ b/krfb/libvncserver/translate.c @@ -0,0 +1,484 @@ +/* + * translate.c - translate between different pixel formats + */ + +/* + * OSXvnc Copyright (C) 2001 Dan McGuirk <[email protected]>. + * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. + * All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include "rfb.h" +#include "sraRegion.h" + +static void PrintPixelFormat(rfbPixelFormat *pf); +static Bool rfbSetClientColourMapBGR233(rfbClientPtr cl); + +Bool rfbEconomicTranslate = FALSE; + +/* + * Some standard pixel formats. + */ + +static const rfbPixelFormat BGR233Format = { + 8, 8, 0, 1, 7, 7, 3, 0, 3, 6, 0, 0 +}; + + +/* + * Macro to compare pixel formats. + */ + +#define PF_EQ(x,y) \ + ((x.bitsPerPixel == y.bitsPerPixel) && \ + (x.depth == y.depth) && \ + ((x.bigEndian == y.bigEndian) || (x.bitsPerPixel == 8)) && \ + (x.trueColour == y.trueColour) && \ + (!x.trueColour || ((x.redMax == y.redMax) && \ + (x.greenMax == y.greenMax) && \ + (x.blueMax == y.blueMax) && \ + (x.redShift == y.redShift) && \ + (x.greenShift == y.greenShift) && \ + (x.blueShift == y.blueShift)))) + +#define CONCAT2(a,b) a##b +#define CONCAT2E(a,b) CONCAT2(a,b) +#define CONCAT4(a,b,c,d) a##b##c##d +#define CONCAT4E(a,b,c,d) CONCAT4(a,b,c,d) + +#undef OUT +#undef IN + +#define OUT 8 +#include "tableinitcmtemplate.c" +#include "tableinittctemplate.c" +#define IN 8 +#include "tabletranstemplate.c" +#undef IN +#define IN 16 +#include "tabletranstemplate.c" +#undef IN +#define IN 32 +#include "tabletranstemplate.c" +#undef IN +#undef OUT + +#define OUT 16 +#include "tableinitcmtemplate.c" +#include "tableinittctemplate.c" +#define IN 8 +#include "tabletranstemplate.c" +#undef IN +#define IN 16 +#include "tabletranstemplate.c" +#undef IN +#define IN 32 +#include "tabletranstemplate.c" +#undef IN +#undef OUT + +#define OUT 32 +#include "tableinitcmtemplate.c" +#include "tableinittctemplate.c" +#define IN 8 +#include "tabletranstemplate.c" +#undef IN +#define IN 16 +#include "tabletranstemplate.c" +#undef IN +#define IN 32 +#include "tabletranstemplate.c" +#undef IN +#undef OUT + +#ifdef ALLOW24BPP +#define COUNT_OFFSETS 4 +#define BPP2OFFSET(bpp) ((bpp)/8-1) +#include "tableinit24.c" +#define BPP 8 +#include "tabletrans24template.c" +#undef BPP +#define BPP 16 +#include "tabletrans24template.c" +#undef BPP +#define BPP 24 +#include "tabletrans24template.c" +#undef BPP +#define BPP 32 +#include "tabletrans24template.c" +#undef BPP +#else +#define COUNT_OFFSETS 3 +#define BPP2OFFSET(bpp) ((int)(bpp)/16) +#endif + +typedef void (*rfbInitCMTableFnType)(char **table, rfbPixelFormat *in, + rfbPixelFormat *out,rfbColourMap* cm); +typedef void (*rfbInitTableFnType)(char **table, rfbPixelFormat *in, + rfbPixelFormat *out); + +rfbInitCMTableFnType rfbInitColourMapSingleTableFns[COUNT_OFFSETS] = { + rfbInitColourMapSingleTable8, + rfbInitColourMapSingleTable16, +#ifdef ALLOW24BPP + rfbInitColourMapSingleTable24, +#endif + rfbInitColourMapSingleTable32 +}; + +rfbInitTableFnType rfbInitTrueColourSingleTableFns[COUNT_OFFSETS] = { + rfbInitTrueColourSingleTable8, + rfbInitTrueColourSingleTable16, +#ifdef ALLOW24BPP + rfbInitTrueColourSingleTable24, +#endif + rfbInitTrueColourSingleTable32 +}; + +rfbInitTableFnType rfbInitTrueColourRGBTablesFns[COUNT_OFFSETS] = { + rfbInitTrueColourRGBTables8, + rfbInitTrueColourRGBTables16, +#ifdef ALLOW24BPP + rfbInitTrueColourRGBTables24, +#endif + rfbInitTrueColourRGBTables32 +}; + +rfbTranslateFnType rfbTranslateWithSingleTableFns[COUNT_OFFSETS][COUNT_OFFSETS] = { + { rfbTranslateWithSingleTable8to8, + rfbTranslateWithSingleTable8to16, +#ifdef ALLOW24BPP + rfbTranslateWithSingleTable8to24, +#endif + rfbTranslateWithSingleTable8to32 }, + { rfbTranslateWithSingleTable16to8, + rfbTranslateWithSingleTable16to16, +#ifdef ALLOW24BPP + rfbTranslateWithSingleTable16to24, +#endif + rfbTranslateWithSingleTable16to32 }, +#ifdef ALLOW24BPP + { rfbTranslateWithSingleTable24to8, + rfbTranslateWithSingleTable24to16, + rfbTranslateWithSingleTable24to24, + rfbTranslateWithSingleTable24to32 }, +#endif + { rfbTranslateWithSingleTable32to8, + rfbTranslateWithSingleTable32to16, +#ifdef ALLOW24BPP + rfbTranslateWithSingleTable32to24, +#endif + rfbTranslateWithSingleTable32to32 } +}; + +rfbTranslateFnType rfbTranslateWithRGBTablesFns[COUNT_OFFSETS][COUNT_OFFSETS] = { + { rfbTranslateWithRGBTables8to8, + rfbTranslateWithRGBTables8to16, +#ifdef ALLOW24BPP + rfbTranslateWithRGBTables8to24, +#endif + rfbTranslateWithRGBTables8to32 }, + { rfbTranslateWithRGBTables16to8, + rfbTranslateWithRGBTables16to16, +#ifdef ALLOW24BPP + rfbTranslateWithRGBTables16to24, +#endif + rfbTranslateWithRGBTables16to32 }, +#ifdef ALLOW24BPP + { rfbTranslateWithRGBTables24to8, + rfbTranslateWithRGBTables24to16, + rfbTranslateWithRGBTables24to24, + rfbTranslateWithRGBTables24to32 }, +#endif + { rfbTranslateWithRGBTables32to8, + rfbTranslateWithRGBTables32to16, +#ifdef ALLOW24BPP + rfbTranslateWithRGBTables32to24, +#endif + rfbTranslateWithRGBTables32to32 } +}; + + + +/* + * rfbTranslateNone is used when no translation is required. + */ + +void +rfbTranslateNone(char *table, rfbPixelFormat *in, rfbPixelFormat *out, + char *iptr, char *optr, int bytesBetweenInputLines, + int width, int height) +{ + int bytesPerOutputLine = width * (out->bitsPerPixel / 8); + + while (height > 0) { + memcpy(optr, iptr, bytesPerOutputLine); + iptr += bytesBetweenInputLines; + optr += bytesPerOutputLine; + height--; + } +} + + +/* + * rfbSetTranslateFunction sets the translation function. + */ + +Bool +rfbSetTranslateFunction(cl) + rfbClientPtr cl; +{ + rfbLog("Pixel format for client %s:\n",cl->host); + PrintPixelFormat(&cl->format); + + /* + * Check that bits per pixel values are valid + */ + + if ((cl->screen->rfbServerFormat.bitsPerPixel != 8) && + (cl->screen->rfbServerFormat.bitsPerPixel != 16) && +#ifdef ALLOW24BPP + (cl->screen->rfbServerFormat.bitsPerPixel != 24) && +#endif + (cl->screen->rfbServerFormat.bitsPerPixel != 32)) + { + rfbLog("%s: server bits per pixel not 8, 16 or 32 (is %d)\n", + "rfbSetTranslateFunction", + cl->screen->rfbServerFormat.bitsPerPixel); + rfbCloseClient(cl); + return FALSE; + } + + if ((cl->format.bitsPerPixel != 8) && + (cl->format.bitsPerPixel != 16) && +#ifdef ALLOW24BPP + (cl->format.bitsPerPixel != 24) && +#endif + (cl->format.bitsPerPixel != 32)) + { + rfbLog("%s: client bits per pixel not 8, 16 or 32\n", + "rfbSetTranslateFunction"); + rfbCloseClient(cl); + return FALSE; + } + + if (!cl->format.trueColour && (cl->format.bitsPerPixel != 8)) { + rfbLog("rfbSetTranslateFunction: client has colour map " + "but %d-bit - can only cope with 8-bit colour maps\n", + cl->format.bitsPerPixel); + rfbCloseClient(cl); + return FALSE; + } + + /* + * bpp is valid, now work out how to translate + */ + + if (!cl->format.trueColour) { + /* + * truecolour -> colour map + * + * Set client's colour map to BGR233, then effectively it's + * truecolour as well + */ + + if (!rfbSetClientColourMapBGR233(cl)) + return FALSE; + + cl->format = BGR233Format; + } + + /* truecolour -> truecolour */ + + if (PF_EQ(cl->format,cl->screen->rfbServerFormat)) { + + /* client & server the same */ + + rfbLog("no translation needed\n"); + cl->translateFn = rfbTranslateNone; + return TRUE; + } + + if ((cl->screen->rfbServerFormat.bitsPerPixel < 16) || + ((!cl->screen->rfbServerFormat.trueColour || !rfbEconomicTranslate) && + (cl->screen->rfbServerFormat.bitsPerPixel == 16))) { + + /* we can use a single lookup table for <= 16 bpp */ + + cl->translateFn = rfbTranslateWithSingleTableFns + [BPP2OFFSET(cl->screen->rfbServerFormat.bitsPerPixel)] + [BPP2OFFSET(cl->format.bitsPerPixel)]; + + if(cl->screen->rfbServerFormat.trueColour) + (*rfbInitTrueColourSingleTableFns + [BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable, + &(cl->screen->rfbServerFormat), &cl->format); + else + (*rfbInitColourMapSingleTableFns + [BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable, + &(cl->screen->rfbServerFormat), &cl->format,&cl->screen->colourMap); + + } else { + + /* otherwise we use three separate tables for red, green and blue */ + + cl->translateFn = rfbTranslateWithRGBTablesFns + [BPP2OFFSET(cl->screen->rfbServerFormat.bitsPerPixel)] + [BPP2OFFSET(cl->format.bitsPerPixel)]; + + (*rfbInitTrueColourRGBTablesFns + [BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable, + &(cl->screen->rfbServerFormat), &cl->format); + } + + return TRUE; +} + + + +/* + * rfbSetClientColourMapBGR233 sets the client's colour map so that it's + * just like an 8-bit BGR233 true colour client. + */ + +static Bool +rfbSetClientColourMapBGR233(cl) + rfbClientPtr cl; +{ + char buf[sz_rfbSetColourMapEntriesMsg + 256 * 3 * 2]; + rfbSetColourMapEntriesMsg *scme = (rfbSetColourMapEntriesMsg *)buf; + CARD16 *rgb = (CARD16 *)(&buf[sz_rfbSetColourMapEntriesMsg]); + int i, len; + int r, g, b; + + if (cl->format.bitsPerPixel != 8 ) { + rfbLog("%s: client not 8 bits per pixel\n", + "rfbSetClientColourMapBGR233"); + rfbCloseClient(cl); + return FALSE; + } + + scme->type = rfbSetColourMapEntries; + + scme->firstColour = Swap16IfLE(0); + scme->nColours = Swap16IfLE(256); + + len = sz_rfbSetColourMapEntriesMsg; + + i = 0; + + for (b = 0; b < 4; b++) { + for (g = 0; g < 8; g++) { + for (r = 0; r < 8; r++) { + rgb[i++] = Swap16IfLE(r * 65535 / 7); + rgb[i++] = Swap16IfLE(g * 65535 / 7); + rgb[i++] = Swap16IfLE(b * 65535 / 3); + } + } + } + + len += 256 * 3 * 2; + + if (WriteExact(cl, buf, len) < 0) { + rfbLogPerror("rfbSetClientColourMapBGR233: write"); + rfbCloseClient(cl); + return FALSE; + } + return TRUE; +} + +/* this function is not called very often, so it needn't be + efficient. */ + +/* + * rfbSetClientColourMap is called to set the client's colour map. If the + * client is a true colour client, we simply update our own translation table + * and mark the whole screen as having been modified. + */ + +Bool +rfbSetClientColourMap(cl, firstColour, nColours) + rfbClientPtr cl; + int firstColour; + int nColours; +{ + if (cl->screen->rfbServerFormat.trueColour || !cl->readyForSetColourMapEntries) { + return TRUE; + } + + if (nColours == 0) { + nColours = cl->screen->colourMap.count; + } + + if (cl->format.trueColour) { + (*rfbInitColourMapSingleTableFns + [BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable, + &cl->screen->rfbServerFormat, &cl->format,&cl->screen->colourMap); + + sraRgnDestroy(cl->modifiedRegion); + cl->modifiedRegion = + sraRgnCreateRect(0,0,cl->screen->width,cl->screen->height); + + return TRUE; + } + + return rfbSendSetColourMapEntries(cl, firstColour, nColours); +} + + +/* + * rfbSetClientColourMaps sets the colour map for each RFB client. + */ + +void +rfbSetClientColourMaps(rfbScreen, firstColour, nColours) + rfbScreenInfoPtr rfbScreen; + int firstColour; + int nColours; +{ + rfbClientIteratorPtr i; + rfbClientPtr cl; + + i = rfbGetClientIterator(rfbScreen); + while((cl = rfbClientIteratorNext(i))) + rfbSetClientColourMap(cl, firstColour, nColours); + rfbReleaseClientIterator(i); +} + +static void +PrintPixelFormat(pf) + rfbPixelFormat *pf; +{ + if (pf->bitsPerPixel == 1) { + rfbLog(" 1 bpp, %s sig bit in each byte is leftmost on the screen.\n", + (pf->bigEndian ? "most" : "least")); + } else { + rfbLog(" %d bpp, depth %d%s\n",pf->bitsPerPixel,pf->depth, + ((pf->bitsPerPixel == 8) ? "" + : (pf->bigEndian ? ", big endian" : ", little endian"))); + if (pf->trueColour) { + rfbLog(" true colour: max r %d g %d b %d, shift r %d g %d b %d\n", + pf->redMax, pf->greenMax, pf->blueMax, + pf->redShift, pf->greenShift, pf->blueShift); + } else { + rfbLog(" uses a colour map (not true colour).\n"); + } + } +} diff --git a/krfb/libvncserver/vncauth.c b/krfb/libvncserver/vncauth.c new file mode 100644 index 00000000..ef27e356 --- /dev/null +++ b/krfb/libvncserver/vncauth.c @@ -0,0 +1,171 @@ +/* + * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +/* + * vncauth.c - Functions for VNC password management and authentication. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <time.h> +#ifdef WIN32 +#define srandom srand +#define random rand +#else +#include <sys/time.h> +#endif +#include "rfb.h" +#include "d3des.h" + + +/* + * We use a fixed key to store passwords, since we assume that our local + * file system is secure but nonetheless don't want to store passwords + * as plaintext. + */ + +unsigned char fixedkey[8] = {23,82,107,6,35,78,88,7}; + + +/* + * Encrypt a password and store it in a file. Returns 0 if successful, + * 1 if the file could not be written. + */ + +int +vncEncryptAndStorePasswd(char *passwd, char *fname) +{ + FILE *fp; + unsigned int i; + unsigned char encryptedPasswd[8]; + + if ((fp = fopen(fname,"w")) == NULL) return 1; + + /* windows security sux */ +#ifndef WIN32 + chmod(fname, S_IRUSR|S_IWUSR); +#endif + + /* pad password with nulls */ + + for (i = 0; i < 8; i++) { + if (i < strlen(passwd)) { + encryptedPasswd[i] = passwd[i]; + } else { + encryptedPasswd[i] = 0; + } + } + + /* Do encryption in-place - this way we overwrite our copy of the plaintext + password */ + + deskey(fixedkey, EN0); + des(encryptedPasswd, encryptedPasswd); + + for (i = 0; i < 8; i++) { + putc(encryptedPasswd[i], fp); + } + + fclose(fp); + return 0; +} + + +/* + * Decrypt a password from a file. Returns a pointer to a newly allocated + * string containing the password or a null pointer if the password could + * not be retrieved for some reason. + */ + +char * +vncDecryptPasswdFromFile(char *fname) +{ + FILE *fp; + int i, ch; + unsigned char *passwd = (unsigned char *)malloc(9); + + if ((fp = fopen(fname,"r")) == NULL) return NULL; + + for (i = 0; i < 8; i++) { + ch = getc(fp); + if (ch == EOF) { + fclose(fp); + return NULL; + } + passwd[i] = ch; + } + + fclose(fp); + + deskey(fixedkey, DE1); + des(passwd, passwd); + + passwd[8] = 0; + + return (char *)passwd; +} + + +/* + * Generate CHALLENGESIZE random bytes for use in challenge-response + * authentication. + */ + +void +vncRandomBytes(unsigned char *bytes) +{ + int i; + unsigned int seed = (unsigned int) time(0); + + srandom(seed); + for (i = 0; i < CHALLENGESIZE; i++) { + bytes[i] = (unsigned char)(random() & 255); + } +} + + +/* + * Encrypt CHALLENGESIZE bytes in memory using a password. + */ + +void +vncEncryptBytes(unsigned char *bytes, char *passwd) +{ + unsigned char key[8]; + unsigned int i; + + /* key is simply password padded with nulls */ + + for (i = 0; i < 8; i++) { + if (i < strlen(passwd)) { + key[i] = passwd[i]; + } else { + key[i] = 0; + } + } + + deskey(key, EN0); + + for (i = 0; i < CHALLENGESIZE; i += 8) { + des(bytes+i, bytes+i); + } +} diff --git a/krfb/libvncserver/vncev.c b/krfb/libvncserver/vncev.c new file mode 100644 index 00000000..ba00f9c8 --- /dev/null +++ b/krfb/libvncserver/vncev.c @@ -0,0 +1,119 @@ +/* This program is a simple server to show events coming from the client */ +#include <stdio.h> +#include <stdlib.h> +#include <sys/socket.h> +#include "rfb.h" +#include "default8x16.h" + +char f[640*480]; +char* keys[0x400]; + +int hex2number(unsigned char c) +{ + if(c>'f') return(-1); + else if(c>'F') + return(10+c-'a'); + else if(c>'9') + return(10+c-'A'); + else + return(c-'0'); +} + +void read_keys() +{ + int i,j,k; + char buffer[1024]; + FILE* keysyms=fopen("keysym.h","r"); + + memset(keys,0,0x400*sizeof(char*)); + + if(!keysyms) + return; + + while(!feof(keysyms)) { + fgets(buffer,1024,keysyms); + if(!strncmp(buffer,"#define XK_",strlen("#define XK_"))) { + for(i=strlen("#define XK_");buffer[i] && buffer[i]!=' ' + && buffer[i]!='\t';i++); + if(buffer[i]==0) /* don't support wrapped lines */ + continue; + buffer[i]=0; + for(i++;buffer[i] && buffer[i]!='0';i++); + if(buffer[i]==0 || buffer[i+1]!='x') continue; + for(j=0,i+=2;(k=hex2number(buffer[i]))>=0;i++) + j=j*16+k; + if(keys[j&0x3ff]) { + char* x=malloc(1+strlen(keys[j&0x3ff])+1+strlen(buffer+strlen("#define "))); + strcpy(x,keys[j&0x3ff]); + strcat(x,","); + strcat(x,buffer+strlen("#define ")); + free(keys[j&0x3ff]); + keys[j&0x3ff]=x; + } else + keys[j&0x3ff] = strdup(buffer+strlen("#define ")); + } + + } + fclose(keysyms); +} + +int lineHeight=16,lineY=480-16; +void output(rfbScreenInfoPtr s,char* line) +{ + rfbDoCopyRect(s,0,0,640,480-lineHeight,0,-lineHeight); + rfbDrawString(s,&default8x16Font,10,lineY,line,0x01); + fprintf(stderr,"%s\n",line); +} + +void dokey(Bool down,KeySym k,rfbClientPtr cl) +{ + char buffer[1024]; + + sprintf(buffer,"%s: %s (0x%x)", + down?"down":"up",keys[k&0x3ff]?keys[k&0x3ff]:"",k); + output(cl->screen,buffer); +} + +void doptr(int buttonMask,int x,int y,rfbClientPtr cl) +{ + char buffer[1024]; + if(buttonMask) { + sprintf(buffer,"Ptr: mouse button mask 0x%x at %d,%d",buttonMask,x,y); + output(cl->screen,buffer); + } + +} + +void newclient(rfbClientPtr cl) +{ + char buffer[1024]; + struct sockaddr_in addr; + int len=sizeof(addr),ip; + + getpeername(cl->sock,&addr,&len); + ip=ntohl(addr.sin_addr.s_addr); + sprintf(buffer,"Client connected from ip %d.%d.%d.%d", + (ip>>24)&0xff,(ip>>16)&0xff,(ip>>8)&0xff,ip&0xff); + output(cl->screen,buffer); +} + +int main(int argc,char** argv) +{ + rfbScreenInfoPtr s=rfbGetScreen(&argc,argv,640,480,8,1,1); + s->colourMap.is16=FALSE; + s->colourMap.count=2; + s->colourMap.data.bytes="\xd0\xd0\xd0\x30\x01\xe0"; + s->rfbServerFormat.trueColour=FALSE; + s->frameBuffer=f; + s->kbdAddEvent=dokey; + s->ptrAddEvent=doptr; + s->newClientHook=newclient; + + memset(f,0,640*480); + read_keys(); + rfbInitServer(s); + + while(1) { + rfbProcessEvents(s,999999); + } +} diff --git a/krfb/libvncserver/x11vnc.c b/krfb/libvncserver/x11vnc.c new file mode 100644 index 00000000..4e298f4a --- /dev/null +++ b/krfb/libvncserver/x11vnc.c @@ -0,0 +1,578 @@ +/* This file (x11vnc.c) is part of LibVNCServer. + It is a small clone of x0rfbserver by HexoNet, demonstrating the + capabilities of LibVNCServer. +*/ + +#include <X11/Xlib.h> +#include <X11/keysym.h> +#include <X11/extensions/XTest.h> +#ifndef NO_SHM +#include <X11/extensions/XShm.h> +#include <sys/shm.h> +#endif +#define KEYSYM_H +#undef Bool +#define KeySym RFBKeySym +#include "rfb.h" + +Display *dpy = 0; +int window; +int c=0,blockLength = 32; +int tileX=0,tileY=0,tileWidth=32,tileHeight=32*2,dontTile=TRUE; +Bool gotInput = FALSE; +Bool viewOnly = FALSE; +Bool sharedMode = FALSE; + +Bool disconnectAfterFirstClient = TRUE; + +/* keyboard handling */ +#define KBDDEBUG + +char modifiers[0x100]; +KeyCode keycodes[0x100],leftShiftCode,rightShiftCode,altGrCode; + +void init_keycodes() +{ + KeySym key,*keymap; + int i,j,minkey,maxkey,syms_per_keycode; + + memset(modifiers,-1,sizeof(modifiers)); + + XDisplayKeycodes(dpy,&minkey,&maxkey); + keymap=XGetKeyboardMapping(dpy,minkey,(maxkey - minkey + 1),&syms_per_keycode); + +#ifdef KBDDEBUG + fprintf(stderr,"minkey=%d, maxkey=%d, syms_per_keycode=%d\n", + minkey,maxkey,syms_per_keycode); +#endif + for (i = minkey; i <= maxkey; i++) + for(j=0;j<syms_per_keycode;j++) { + key=keymap[(i-minkey)*syms_per_keycode+j]; +#ifdef KBDDEBUG + fprintf(stderr,"keymap(i=0x%x,j=%d)==0x%lx\n",i,j,key); +#endif + if(key>=' ' && key<0x100 && i==XKeysymToKeycode(dpy,key)) { + keycodes[key]=i; + modifiers[key]=j; +#ifdef KBDDEBUG + fprintf(stderr,"key 0x%lx (%c): keycode=0x%x, modifier=%d\n", + key,(char)key,i,j); +#endif + } + } + + leftShiftCode=XKeysymToKeycode(dpy,XK_Shift_L); + rightShiftCode=XKeysymToKeycode(dpy,XK_Shift_R); + altGrCode=XKeysymToKeycode(dpy,XK_Mode_switch); + +#ifdef KBDDEBUG + fprintf(stderr,"leftShift=0x%x, rightShift=0x%x, altGr=0x%x\n", + leftShiftCode,rightShiftCode,altGrCode); +#endif + + XFree ((char *) keymap); +} + +static Bool shutDownServer=0; + +/* the hooks */ + +void clientGone(rfbClientPtr cl) +{ + shutDownServer=-1; +} + +enum rfbNewClientAction newClient(rfbClientPtr cl) +{ + if(disconnectAfterFirstClient) + cl->clientGoneHook = clientGone; + if(viewOnly) + cl->clientData = (void*)-1; + else + cl->clientData = (void*)0; + return(RFB_CLIENT_ACCEPT); +} + +#define LEFTSHIFT 1 +#define RIGHTSHIFT 2 +#define ALTGR 4 +char ModifierState = 0; + +/* this function adjusts the modifiers according to mod (as from modifiers) and ModifierState */ + +void tweakModifiers(char mod,Bool down) +{ + Bool isShift=ModifierState&(LEFTSHIFT|RIGHTSHIFT); +#ifdef KBDDEBUG + fprintf(stderr,"tweakModifiers: 0x%x %s\n", + mod,down?"down":"up"); +#endif + if(mod<0) return; + if(isShift && mod!=1) { + if(ModifierState&LEFTSHIFT) + XTestFakeKeyEvent(dpy,leftShiftCode,!down,CurrentTime); + if(ModifierState&RIGHTSHIFT) + XTestFakeKeyEvent(dpy,rightShiftCode,!down,CurrentTime); + } + if(!isShift && mod==1) + XTestFakeKeyEvent(dpy,leftShiftCode,down,CurrentTime); + + if(ModifierState&ALTGR && mod!=2) + XTestFakeKeyEvent(dpy,altGrCode,!down,CurrentTime); + if(!(ModifierState&ALTGR) && mod==2) + XTestFakeKeyEvent(dpy,altGrCode,down,CurrentTime); +} + +void keyboard(Bool down,KeySym keySym,rfbClientPtr cl) +{ + if(((int)cl->clientData)==-1) return; /* viewOnly */ + +#define ADJUSTMOD(sym,state) \ + if(keySym==sym) { if(down) ModifierState|=state; else ModifierState&=~state; } + + ADJUSTMOD(XK_Shift_L,LEFTSHIFT) + ADJUSTMOD(XK_Shift_R,RIGHTSHIFT) + ADJUSTMOD(XK_Mode_switch,ALTGR) + +#ifdef KBDDEBUG + fprintf(stderr,"keyboard: down=%s, keySym=0x%lx (%s), ModState=0x%x\n", + down?"down":"up",keySym,XKeysymToString(keySym),ModifierState); +#endif + + if(keySym>=' ' && keySym<0x100) { + KeyCode k; + if(down) + tweakModifiers(modifiers[keySym],True); + //tweakModifiers(modifiers[keySym],down); + //k = XKeysymToKeycode( dpy,keySym ); + k = keycodes[keySym]; + if(k!=NoSymbol) { + XTestFakeKeyEvent(dpy,k,down,CurrentTime); + gotInput = TRUE; + } + if(down) + tweakModifiers(modifiers[keySym],False); + gotInput = TRUE; + } else { + KeyCode k = XKeysymToKeycode( dpy,keySym ); + if(k!=NoSymbol) { + XTestFakeKeyEvent(dpy,k,down,CurrentTime); + gotInput = TRUE; + } + } +} + +int oldButtonMask = 0; + +void mouse(int buttonMask,int x,int y,rfbClientPtr cl) +{ + int i=0; + + if(((int)cl->clientData)==-1) return; /* viewOnly */ + + XTestFakeMotionEvent(dpy,0,x,y,CurrentTime ); + while(i<5) { + if ((oldButtonMask&(1<<i))!=(buttonMask&(1<<i))) + XTestFakeButtonEvent(dpy,i+1,(buttonMask&(1<<i))?True:False,CurrentTime); + i++; + } + oldButtonMask = buttonMask; + //fprintf(stderr,"-"); + gotInput = TRUE; +} + +/* the X11 interaction */ + +#ifndef NO_SHM +Bool useSHM = TRUE; +XShmSegmentInfo shminfo; +#else +Bool useSHM = FALSE; +#endif + +void getImage(int bpp,Display *dpy,int xscreen,XImage **i,int x,int y,int width,int height) +{ + if(width<=0) width=DisplayWidth(dpy,xscreen); + if(height<=0) height=DisplayHeight(dpy,xscreen); + if(useSHM && bpp>0) { + static Bool firstTime = TRUE; + if(firstTime) { + firstTime = FALSE; + *i = XShmCreateImage(dpy, + DefaultVisual( dpy, xscreen ), + bpp, + ZPixmap, + NULL, + &shminfo, + width,height); + + if(*i == 0) { + useSHM = FALSE; + getImage(bpp,dpy,xscreen,i,x,y,width,height); + return; + } + + shminfo.shmid = shmget( IPC_PRIVATE, + (*i)->bytes_per_line * (*i)->height, + IPC_CREAT | 0777 ); + shminfo.shmaddr = (*i)->data = (char *) shmat( shminfo.shmid, 0, 0 ); + shminfo.readOnly = False; + XShmAttach( dpy, &shminfo ); + } + + if(x==0 && y==0 && width==DisplayWidth(dpy,xscreen) && height==DisplayHeight(dpy,xscreen)) + XShmGetImage(dpy,window,*i,0,0,AllPlanes); + else + XGetSubImage(dpy,window,x,y,width,height,AllPlanes,ZPixmap,*i,0,0); + } else { + *i = XGetImage(dpy,window,x,y,width,height,AllPlanes,ZPixmap ); + } +} + +void checkForImageUpdates(rfbScreenInfoPtr s,char *b,int rowstride,int x,int y,int width,int height) +{ + Bool changed; + int i,j,k,l1,l2,x1,y1; + int bpp=s->bitsPerPixel/8; + + for(j=0;j<height;j+=blockLength) + for(i=0;i<width;i+=blockLength) { + y1=j+blockLength; if(y1>height) y1=height; + x1=i+blockLength; if(x1>width) x1=width; + y1*=rowstride; + x1*=bpp; + changed=FALSE; + for(l1=j*rowstride,l2=(j+y)*s->paddedWidthInBytes+x*bpp;l1<y1;l1+=rowstride,l2+=s->paddedWidthInBytes) + for(k=i*bpp;k<x1;k++) + if(s->frameBuffer[l2+k]!=b[l1+k]) { + // fprintf(stderr,"changed: %d, %d\n",k,l); + changed=TRUE; + goto changed_p; + } + if(changed) { + changed_p: + for(l1+=i*bpp,l2+=i*bpp;l1<y1;l1+=rowstride,l2+=s->paddedWidthInBytes) + memcpy(/*b+l,*/s->frameBuffer+l2,b+l1,x1-i*bpp); + rfbMarkRectAsModified(s,x+i,y+j,x+i+blockLength,y+j+blockLength); + } + } +} + +int probeX=0,probeY=0; + +void probeScreen(rfbScreenInfoPtr s,int xscreen) +{ + int i,j,/*pixel,i1,*/j1, + bpp=s->rfbServerFormat.bitsPerPixel/8,/*mask=(1<<bpp)-1,*/ + rstride=s->paddedWidthInBytes; + XImage* im; + //fprintf(stderr,"/%d,%d",probeX,probeY); +#if 0 + probeX++; + if(probeX>=tileWidth) { + probeX=0; + probeY++; + if(probeY>=tileHeight) + probeY=0; + } +#else + probeX=(rand()%tileWidth); + probeY=(rand()%tileHeight); +#endif + + for(j=probeY;j<s->height;j+=tileHeight) + for(i=0/*probeX*/;i<s->width;i+=tileWidth) { + im=XGetImage(dpy,window,i,j,tileWidth/*1*/,1,AllPlanes,ZPixmap); + /* for(i1=0;i1<bpp && im->data[i1]==(s->frameBuffer+i*bpp+j*rstride)[i1];i1++); + if(i1<bpp) { */ + if(memcmp(im->data,s->frameBuffer+i*bpp+j*rstride,tileWidth*bpp)) { + /* do update */ + int x=i/*-probeX*/,w=(x+tileWidth>s->width)?s->width-x:tileWidth, + y=j-probeY,h=(y+tileHeight>s->height)?s->height-y:tileHeight; + + XDestroyImage(im); + //getImage(bpp,dpy,xscreen,&im,x,y,w,h); + //fprintf(stderr,"GetImage(%d,%d,%d,%d)",x,y,w,h); + im = XGetImage(dpy,window,x,y,w,h,AllPlanes,ZPixmap ); + for(j1=0;j1<h;j1++) + memcpy(s->frameBuffer+x*bpp+(y+j1)*rstride, + im->data+j1*im->bytes_per_line,bpp*w); + //checkForImageUpdates(s,im->data,rstride,x,y,w,h); + //if(0 && !useSHM) + XDestroyImage(im); + //memcpy(s->frameBuffer+i*bpp+j*rstride,&pixel,bpp); + rfbMarkRectAsModified(s,x,y,x+w,y+h); + //fprintf(stderr,"%d:%d:%x\n",i,j,pixel); + //fprintf(stderr,"*"); + } else + XDestroyImage(im); + } +} + +#define LOCAL_CONTROL + +#ifdef LOCAL_CONTROL +#include "1instance.c" +#endif + +/* the main program */ + +int main(int argc,char** argv) +{ + //Screen *sc; + //Colormap cm; + XImage *framebufferImage; + char *backupImage; + int xscreen,i; + rfbScreenInfoPtr screen; + int maxMsecsToConnect = 5000; /* a maximum of 5 seconds to connect */ + int updateCounter; /* about every 50 ms a screen update should be made. */ + +#ifdef LOCAL_CONTROL + char message[1024]; + single_instance_struct single_instance = { "/tmp/x11vnc_control" }; + + open_control_file(&single_instance); +#endif + + for(i=argc-1;i>0;i--) +#ifdef LOCAL_CONTROL + if(i<argc-1 && !strcmp(argv[i],"-toggleviewonly")) { + snprintf(message, sizeof(message), "t%s",argv[i+1]); + send_message(&single_instance,message); + exit(0); + } else if(!strcmp(argv[i],"-listclients")) { + fprintf(stderr,"list clients\n"); + send_message(&single_instance,"l"); + exit(0); + } else +#ifdef BACKCHANNEL + if(i<argc-1 && !strcmp(argv[i],"-backchannel")) { + snprintf(message, sizeof(message), "b%s",argv[i+1]); + send_message(&single_instance,message); + exit(0); + } else +#endif +#endif + if(i<argc-1 && strcmp(argv[i],"-display")==0) { + fprintf(stderr,"Using display %s\n",argv[i+1]); + dpy = XOpenDisplay(argv[i+1]); + if(dpy==0) { + fprintf(stderr,"Couldn't connect to display \"%s\".\n",argv[i+1]); + exit(1); + } + } else if(i<argc-1 && strcmp(argv[i],"-wait4client")==0) { + maxMsecsToConnect = atoi(argv[i+1]); + } else if(i<argc-1 && strcmp(argv[i],"-update")==0) { + updateCounter = atoi(argv[i+1]); + } else if(strcmp(argv[i],"-noshm")==0) { + useSHM = FALSE; + } else if(strcmp(argv[i],"-runforever")==0) { + disconnectAfterFirstClient = FALSE; + } else if(strcmp(argv[i],"-tile")==0) { + dontTile=FALSE; + } else if(strcmp(argv[i],"-viewonly")==0) { + viewOnly=TRUE; + } else if(strcmp(argv[i],"-shared")==0) { + sharedMode=TRUE; + } + + updateCounter = dontTile?20:1; + + if(dpy==0) + dpy = XOpenDisplay(""); + if(dpy==0) { + fprintf(stderr,"Couldn't open display!\n"); + exit(2); + } + + xscreen = DefaultScreen(dpy); + window = RootWindow(dpy,xscreen); + //XTestGrabControl(dpy,True); + + init_keycodes(); + + getImage(0,dpy,xscreen,&framebufferImage,0,0,-1,-1); + + screen = rfbGetScreen(&argc,argv,framebufferImage->width, + framebufferImage->height, + framebufferImage->bits_per_pixel, + 8, + framebufferImage->bits_per_pixel/8); + + screen->paddedWidthInBytes = framebufferImage->bytes_per_line; + + screen->rfbServerFormat.bitsPerPixel = framebufferImage->bits_per_pixel; + screen->rfbServerFormat.depth = framebufferImage->depth; + //rfbEndianTest = framebufferImage->bitmap_bit_order != MSBFirst; + screen->rfbServerFormat.trueColour = TRUE; + + if ( screen->rfbServerFormat.bitsPerPixel == 8 ) { + if(CellsOfScreen(ScreenOfDisplay(dpy,xscreen))) { + XColor color[256]; + int i; + screen->colourMap.count = 256; + screen->rfbServerFormat.trueColour = FALSE; + screen->colourMap.is16 = TRUE; + for(i=0;i<256;i++) + color[i].pixel=i; + XQueryColors(dpy,DefaultColormap(dpy,xscreen),color,256); + screen->colourMap.data.shorts = (short*)malloc(3*sizeof(short)*screen->colourMap.count); + for(i=0;i<screen->colourMap.count;i++) { + screen->colourMap.data.shorts[i*3+0] = color[i].red; + screen->colourMap.data.shorts[i*3+1] = color[i].green; + screen->colourMap.data.shorts[i*3+2] = color[i].blue; + } + } else { + screen->rfbServerFormat.redShift = 0; + screen->rfbServerFormat.greenShift = 2; + screen->rfbServerFormat.blueShift = 5; + screen->rfbServerFormat.redMax = 3; + screen->rfbServerFormat.greenMax = 7; + screen->rfbServerFormat.blueMax = 3; + } + } else { + screen->rfbServerFormat.redShift = 0; + if ( framebufferImage->red_mask ) + while ( ! ( framebufferImage->red_mask & (1 << screen->rfbServerFormat.redShift) ) ) + screen->rfbServerFormat.redShift++; + screen->rfbServerFormat.greenShift = 0; + if ( framebufferImage->green_mask ) + while ( ! ( framebufferImage->green_mask & (1 << screen->rfbServerFormat.greenShift) ) ) + screen->rfbServerFormat.greenShift++; + screen->rfbServerFormat.blueShift = 0; + if ( framebufferImage->blue_mask ) + while ( ! ( framebufferImage->blue_mask & (1 << screen->rfbServerFormat.blueShift) ) ) + screen->rfbServerFormat.blueShift++; + screen->rfbServerFormat.redMax = framebufferImage->red_mask >> screen->rfbServerFormat.redShift; + screen->rfbServerFormat.greenMax = framebufferImage->green_mask >> screen->rfbServerFormat.greenShift; + screen->rfbServerFormat.blueMax = framebufferImage->blue_mask >> screen->rfbServerFormat.blueShift; + } + + backupImage = malloc(screen->height*screen->paddedWidthInBytes); + memcpy(backupImage,framebufferImage->data,screen->height*screen->paddedWidthInBytes); + + screen->frameBuffer = backupImage; + screen->cursor = 0; + screen->newClientHook = newClient; + + screen->kbdAddEvent = keyboard; + screen->ptrAddEvent = mouse; + + if(sharedMode) { + screen->rfbAlwaysShared = TRUE; + } + + screen->rfbDeferUpdateTime = 1; + updateCounter /= screen->rfbDeferUpdateTime; + + rfbInitServer(screen); + + c=0; + while(1) { + if(screen->rfbClientHead) + maxMsecsToConnect = 1<<16; + else { + maxMsecsToConnect -= screen->rfbDeferUpdateTime; + if(maxMsecsToConnect<0) { + fprintf(stderr,"Maximum time to connect reached. Exiting.\n"); + XTestDiscard(dpy); + exit(2); + } + } + +#ifdef LOCAL_CONTROL + if(get_next_message(message,1024,&single_instance,50)) { + if(message[0]=='l' && message[1]==0) { + rfbClientPtr cl; + int i; + for(i=0,cl=screen->rfbClientHead;cl;cl=cl->next,i++) + fprintf(stderr,"%02d: %s\n",i,cl->host); + } else if(message[0]=='t') { + rfbClientPtr cl; + for(cl=screen->rfbClientHead;cl;cl=cl->next) + if(!strcmp(message+1,cl->host)) { + cl->clientData=(void*)((cl->clientData==0)?-1:0); + break; + } + } +#ifdef BACKCHANNEL + else if(message[0]=='b') + rfbSendBackChannel(screen,message+1,strlen(message+1)); +#endif + } +#endif + + rfbProcessEvents(screen,-1); + if(shutDownServer) { + free(backupImage); + rfbScreenCleanup(screen); + XFree(dpy); +#ifndef NO_SHM + XShmDetach(dpy,framebufferImage); +#endif + exit(0); + } + + if(dontTile) { + if(gotInput) { + gotInput = FALSE; + c=updateCounter; + } else if(screen->rfbClientHead && c++>updateCounter) { + c=0; + //fprintf(stderr,"*"); + if(!useSHM) + framebufferImage->f.destroy_image(framebufferImage); + if(dontTile) { + getImage(screen->rfbServerFormat.bitsPerPixel,dpy,xscreen,&framebufferImage,0,0,screen->width,screen->height); + checkForImageUpdates(screen,framebufferImage->data,framebufferImage->bytes_per_line, + 0,0,screen->width,screen->height); + } else { + /* old tile code. Eventually to be removed (TODO) */ + char isRightEdge = tileX+tileWidth>=screen->width; + char isLowerEdge = tileY+tileHeight>=screen->height; + getImage(screen->rfbServerFormat.bitsPerPixel,dpy,xscreen,&framebufferImage,tileX,tileY, + isRightEdge?screen->width-tileX:tileWidth, + isLowerEdge?screen->height-tileY:tileHeight); + checkForImageUpdates(screen,framebufferImage->data,framebufferImage->bytes_per_line, + tileX,tileY, + isRightEdge?screen->width-tileX:tileWidth, + isLowerEdge?screen->height-tileY:tileHeight); + if(isRightEdge) { + tileX=0; + if(isLowerEdge) + tileY=0; + else + tileY+=tileHeight; + } else + tileX+=tileWidth; + } + } + } else if(c++>updateCounter) { + c=0; + probeScreen(screen,xscreen); + } + +#ifdef WRITE_SNAPS + { + int i,j,r,g,b; + FILE* f=fopen("test.pnm","wb"); + fprintf(f,"P6\n%d %d\n255\n",screen->width,screen->height); + for(j=0;j<screen->height;j++) + for(i=0;i<screen->width;i++) { + //r=screen->frameBuffer[j*screen->paddedWidthInBytes+i*2]; + r=framebufferImage->data[j*screen->paddedWidthInBytes+i*2]; + fputc(((r>>screen->rfbServerFormat.redShift)&screen->rfbServerFormat.redMax)*255/screen->rfbServerFormat.redMax,f); + fputc(((r>>screen->rfbServerFormat.greenShift)&screen->rfbServerFormat.greenMax)*255/screen->rfbServerFormat.greenMax,f); + fputc(((r>>screen->rfbServerFormat.blueShift)&screen->rfbServerFormat.blueMax)*255/screen->rfbServerFormat.blueMax,f); + } + fclose(f); + } +#endif + } +#ifndef NO_SHM + //XShmDetach(dpy,framebufferImage); +#endif + + return(0); +} diff --git a/krfb/libvncserver/zippy.c b/krfb/libvncserver/zippy.c new file mode 100644 index 00000000..2f35059d --- /dev/null +++ b/krfb/libvncserver/zippy.c @@ -0,0 +1,182 @@ +#include <stdio.h> +#include <stdlib.h> +#include <rfb.h> +#include <keysym.h> +#include "radon.h" + +int maxx=400, maxy=400, bpp=4; +/* odd maxx doesn't work (vncviewer bug) */ + +/* Here we create a structure so that every client has it's own pointer */ + +/* turns the framebuffer black */ +void blank_framebuffer(char* frame_buffer, int x1, int y1, int x2, int y2); +/* displays a red bar, a green bar, and a blue bar */ +void draw_primary_colors (char* frame_buffer, int x1, int y1, int x2, int y2); +void linecount (char* frame_buffer); +/* handles mouse events */ +void on_mouse_event (int buttonMask,int x,int y,rfbClientPtr cl); +/* handles keyboard events */ +void on_key_press (Bool down,KeySym key,rfbClientPtr cl); + +int main (int argc, char **argv) +{ + int i; + rfbScreenInfoPtr server; + + rfbProcessSizeArguments(&maxx,&maxy,&bpp,&argc,argv); + + server = rfbGetScreen (&argc, argv, maxx, maxy, 8, 3, bpp); + server->desktopName = "Zippy das wundersquirrel\'s VNC server"; + server->frameBuffer = (char*)malloc(maxx*maxy*bpp); + server->rfbAlwaysShared = TRUE; + server->kbdAddEvent = on_key_press; + server->ptrAddEvent = on_mouse_event; + + rfbInitServer (server); + + blank_framebuffer(server->frameBuffer, 0, 0, maxx, maxy); + rfbRunEventLoop (server, -1, FALSE); + free(server->frameBuffer); + rfbScreenCleanup (server); + return 0; +} + +void blank_framebuffer(char* frame_buffer, int x1, int y1, int x2, int y2) +{ + int i; + for (i=0; i < maxx * maxy * bpp; i++) frame_buffer[i]=(char) 0; +} + +void draw_primary_colors (char* frame_buffer, int x1, int y1, int x2, int y2) +{ + int i, j, current_pixel; + for (i=y1; i < y2; i++){ + for (j=x1; j < x2; j++) { + current_pixel = (i*x2 + j) * bpp; + if (i < y2 ) { + frame_buffer[current_pixel+0] = (char) 128; + frame_buffer[current_pixel+1] = (char) 0; + frame_buffer[current_pixel+2] = (char) 0; + } + if (i < y2/3*2) { + frame_buffer[current_pixel+0] = (char) 0; + frame_buffer[current_pixel+1] = (char) 128; + frame_buffer[current_pixel+2] = (char) 0; + } + if (i < y2/3) { + frame_buffer[current_pixel+0] = (char) 0; + frame_buffer[current_pixel+1] = (char) 0; + frame_buffer[current_pixel+2] = (char) 128; + } + } + } + } + +/* Dscho's versions (slower, but works for bpp != 3 or 4) */ +void draw_primary_colours_generic(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2) +{ + rfbPixelFormat f=s->rfbServerFormat; + int i,j; + for(j=y1;j<y2;j++) + for(i=x1;i<x2;i++) + if(j<y1*2/3+y2/3) + rfbDrawPixel(s,i,j,f.redMax<<f.redShift); + else if(j<y1/3+y2*2/3) + rfbDrawPixel(s,i,j,f.greenMax<<f.greenShift); + else + rfbDrawPixel(s,i,j,f.blueMax<<f.blueShift); +} + +void draw_primary_colours_generic_fast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2) +{ + rfbPixelFormat f=s->rfbServerFormat; + int i,j,y3=(y1*2+y2)/3,y4=(y1+y2*2)/3; + /* draw first pixel */ + rfbDrawPixel(s,x1,y1,f.redMax<<f.redShift); + rfbDrawPixel(s,x1,y3,f.greenMax<<f.greenShift); + rfbDrawPixel(s,x1,y4,f.blueMax<<f.blueShift); + /* then copy stripes */ + for(j=0;j<y2-y4;j++) + for(i=x1;i<x2;i++) { +#define ADDR(x,y) s->frameBuffer+(x)*bpp+(y)*s->paddedWidthInBytes + memcpy(ADDR(i,j+y1),ADDR(x1,y1),bpp); + memcpy(ADDR(i,j+y3),ADDR(x1,y3),bpp); + memcpy(ADDR(i,j+y4),ADDR(x1,y4),bpp); + } +} + +void draw_primary_colours_generic_ultrafast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2) +{ + rfbPixelFormat f=s->rfbServerFormat; + int i,j,y3=(y1*2+y2)/3,y4=(y1+y2*2)/3; + /* fill rectangles */ + rfbFillRect(s,x1,y1,x2,y3,f.redMax<<f.redShift); + rfbFillRect(s,x1,y3,x2,y4,f.greenMax<<f.greenShift); + rfbFillRect(s,x1,y4,x2,y2,f.blueMax<<f.blueShift); +} + +void linecount (char* frame_buffer) +{ + int i,j,k, current_pixel; + for (i=maxy-4; i>maxy-20; i-=4) + for (j=0; j<4; j++) for (k=0; k < maxx; k++) { + current_pixel = (i*j*maxx + k) * bpp; + if (i%2 == 0) { + frame_buffer[current_pixel+0] = (char) 0; + frame_buffer[current_pixel+1] = (char) 0; + frame_buffer[current_pixel+2] = (char) 128; + } + + if (i%2 == 1) { + frame_buffer[current_pixel+0] = (char) 128; + frame_buffer[current_pixel+1] = (char) 0; + frame_buffer[current_pixel+2] = (char) 0; + } + } + +} + + +void on_key_press (Bool down,KeySym key,rfbClientPtr cl) +{ + if (down) //or else the action occurs on both the press and depress + switch (key) { + + case XK_b: + case XK_B: + rfbUndrawCursor(cl->screen); + blank_framebuffer(cl->screen->frameBuffer, 0, 0, maxx, maxy); + rfbDrawString(cl->screen,&radonFont,20,maxy-20,"Hello, World!",0xffffff); + rfbMarkRectAsModified(cl->screen,0, 0,maxx,maxy); + fprintf (stderr, "Framebuffer blanked\n"); + break; + case XK_p: + case XK_P: + rfbUndrawCursor(cl->screen); + /* draw_primary_colors (cl->screen->frameBuffer, 0, 0, maxx, maxy); */ + draw_primary_colours_generic_ultrafast (cl->screen, 0, 0, maxx, maxy); + rfbMarkRectAsModified(cl->screen,0, 0,maxx,maxy); + fprintf (stderr, "Primary colors displayed\n"); + break; + case XK_Q: + case XK_q: + fprintf (stderr, "Exiting now\n"); + exit(0); + case XK_C: + case XK_c: + rfbUndrawCursor(cl->screen); + rfbDrawString(cl->screen,&radonFont,20,100,"Hello, World!",0xffffff); + rfbMarkRectAsModified(cl->screen,0, 0,maxx,maxy); + break; + default: + fprintf (stderr, "The %c key was pressed\n", (char) key); + } +} + + +void on_mouse_event (int buttonMask,int x,int y,rfbClientPtr cl) +{ + printf("buttonMask: %i\n" + "x: %i\n" "y: %i\n", buttonMask, x, y); +} diff --git a/krfb/libvncserver/zlib.c b/krfb/libvncserver/zlib.c new file mode 100644 index 00000000..1eac366d --- /dev/null +++ b/krfb/libvncserver/zlib.c @@ -0,0 +1,304 @@ +/* + * zlib.c + * + * Routines to implement zlib based encoding (deflate). + */ + +/* + * Copyright (C) 2000 Tridia Corporation. All Rights Reserved. + * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + * + * For the latest source code, please check: + * + * http://www.developVNC.org/ + * + * or send email to [email protected]. + */ + +#include <stdio.h> +#include "rfb.h" + +/* + * zlibBeforeBuf contains pixel data in the client's format. + * zlibAfterBuf contains the zlib (deflated) encoding version. + * If the zlib compressed/encoded version is + * larger than the raw data or if it exceeds zlibAfterBufSize then + * raw encoding is used instead. + */ + +static int zlibBeforeBufSize = 0; +static char *zlibBeforeBuf = NULL; + +static int zlibAfterBufSize = 0; +static char *zlibAfterBuf = NULL; +static int zlibAfterBufLen; + +/* + * rfbSendOneRectEncodingZlib - send a given rectangle using one Zlib + * rectangle encoding. + */ + +Bool +rfbSendOneRectEncodingZlib(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + rfbFramebufferUpdateRectHeader rect; + rfbZlibHeader hdr; + int deflateResult; + int previousOut; + int i; + char *fbptr = (cl->screen->frameBuffer + (cl->screen->paddedWidthInBytes * y) + + (x * (cl->screen->bitsPerPixel / 8))); + + int maxRawSize; + int maxCompSize; + + maxRawSize = (cl->screen->width * cl->screen->height + * (cl->format.bitsPerPixel / 8)); + + if (zlibBeforeBufSize < maxRawSize) { + zlibBeforeBufSize = maxRawSize; + if (zlibBeforeBuf == NULL) + zlibBeforeBuf = (char *)malloc(zlibBeforeBufSize); + else + zlibBeforeBuf = (char *)realloc(zlibBeforeBuf, zlibBeforeBufSize); + } + + /* zlib compression is not useful for very small data sets. + * So, we just send these raw without any compression. + */ + if (( w * h * (cl->screen->bitsPerPixel / 8)) < + VNC_ENCODE_ZLIB_MIN_COMP_SIZE ) { + + int result; + + /* The translation function (used also by the in raw encoding) + * requires 4/2/1 byte alignment in the output buffer (which is + * updateBuf for the raw encoding) based on the bitsPerPixel of + * the viewer/client. This prevents SIGBUS errors on some + * architectures like SPARC, PARISC... + */ + if (( cl->format.bitsPerPixel > 8 ) && + ( cl->ublen % ( cl->format.bitsPerPixel / 8 )) != 0 ) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + result = rfbSendRectEncodingRaw(cl, x, y, w, h); + + return result; + + } + + /* + * zlib requires output buffer to be slightly larger than the input + * buffer, in the worst case. + */ + maxCompSize = maxRawSize + (( maxRawSize + 99 ) / 100 ) + 12; + + if (zlibAfterBufSize < maxCompSize) { + zlibAfterBufSize = maxCompSize; + if (zlibAfterBuf == NULL) + zlibAfterBuf = (char *)malloc(zlibAfterBufSize); + else + zlibAfterBuf = (char *)realloc(zlibAfterBuf, zlibAfterBufSize); + } + + /* + * Convert pixel data to client format. + */ + (*cl->translateFn)(cl->translateLookupTable, &cl->screen->rfbServerFormat, + &cl->format, fbptr, zlibBeforeBuf, + cl->screen->paddedWidthInBytes, w, h); + + cl->compStream.next_in = ( Bytef * )zlibBeforeBuf; + cl->compStream.avail_in = w * h * (cl->format.bitsPerPixel / 8); + cl->compStream.next_out = ( Bytef * )zlibAfterBuf; + cl->compStream.avail_out = maxCompSize; + cl->compStream.data_type = Z_BINARY; + + /* Initialize the deflation state. */ + if ( cl->compStreamInited == FALSE ) { + + cl->compStream.total_in = 0; + cl->compStream.total_out = 0; + cl->compStream.zalloc = Z_NULL; + cl->compStream.zfree = Z_NULL; + cl->compStream.opaque = Z_NULL; + + deflateInit2( &(cl->compStream), + cl->zlibCompressLevel, + Z_DEFLATED, + MAX_WBITS, + MAX_MEM_LEVEL, + Z_DEFAULT_STRATEGY ); + /* deflateInit( &(cl->compStream), Z_BEST_COMPRESSION ); */ + /* deflateInit( &(cl->compStream), Z_BEST_SPEED ); */ + cl->compStreamInited = TRUE; + + } + + previousOut = cl->compStream.total_out; + + /* Perform the compression here. */ + deflateResult = deflate( &(cl->compStream), Z_SYNC_FLUSH ); + + /* Find the total size of the resulting compressed data. */ + zlibAfterBufLen = cl->compStream.total_out - previousOut; + + if ( deflateResult != Z_OK ) { + rfbLog("zlib deflation error: %s\n", cl->compStream.msg); + return FALSE; + } + + /* Note that it is not possible to switch zlib parameters based on + * the results of the compression pass. The reason is + * that we rely on the compressor and decompressor states being + * in sync. Compressing and then discarding the results would + * cause lose of synchronization. + */ + + /* Update statics */ + cl->rfbRectanglesSent[rfbEncodingZlib]++; + cl->rfbBytesSent[rfbEncodingZlib] += (sz_rfbFramebufferUpdateRectHeader + + sz_rfbZlibHeader + zlibAfterBufLen); + + if (cl->ublen + sz_rfbFramebufferUpdateRectHeader + sz_rfbZlibHeader + > UPDATE_BUF_SIZE) + { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + + rect.r.x = Swap16IfLE(x); + rect.r.y = Swap16IfLE(y); + rect.r.w = Swap16IfLE(w); + rect.r.h = Swap16IfLE(h); + rect.encoding = Swap32IfLE(rfbEncodingZlib); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&rect, + sz_rfbFramebufferUpdateRectHeader); + cl->ublen += sz_rfbFramebufferUpdateRectHeader; + + hdr.nBytes = Swap32IfLE(zlibAfterBufLen); + + memcpy(&cl->updateBuf[cl->ublen], (char *)&hdr, sz_rfbZlibHeader); + cl->ublen += sz_rfbZlibHeader; + + for (i = 0; i < zlibAfterBufLen;) { + + int bytesToCopy = UPDATE_BUF_SIZE - cl->ublen; + + if (i + bytesToCopy > zlibAfterBufLen) { + bytesToCopy = zlibAfterBufLen - i; + } + + memcpy(&cl->updateBuf[cl->ublen], &zlibAfterBuf[i], bytesToCopy); + + cl->ublen += bytesToCopy; + i += bytesToCopy; + + if (cl->ublen == UPDATE_BUF_SIZE) { + if (!rfbSendUpdateBuf(cl)) + return FALSE; + } + } + + return TRUE; + +} + + +/* + * rfbSendRectEncodingZlib - send a given rectangle using one or more + * Zlib encoding rectangles. + */ + +Bool +rfbSendRectEncodingZlib(cl, x, y, w, h) + rfbClientPtr cl; + int x, y, w, h; +{ + int maxLines; + int linesRemaining; + rfbRectangle partialRect; + + partialRect.x = x; + partialRect.y = y; + partialRect.w = w; + partialRect.h = h; + + /* Determine maximum pixel/scan lines allowed per rectangle. */ + maxLines = ( ZLIB_MAX_SIZE(w) / w ); + + /* Initialize number of scan lines left to do. */ + linesRemaining = h; + + /* Loop until all work is done. */ + while ( linesRemaining > 0 ) { + + int linesToComp; + + if ( maxLines < linesRemaining ) + linesToComp = maxLines; + else + linesToComp = linesRemaining; + + partialRect.h = linesToComp; + + /* Encode (compress) and send the next rectangle. */ + if ( ! rfbSendOneRectEncodingZlib( cl, + partialRect.x, + partialRect.y, + partialRect.w, + partialRect.h )) { + + return FALSE; + } + + /* Technically, flushing the buffer here is not extrememly + * efficient. However, this improves the overall throughput + * of the system over very slow networks. By flushing + * the buffer with every maximum size zlib rectangle, we + * improve the pipelining usage of the server CPU, network, + * and viewer CPU components. Insuring that these components + * are working in parallel actually improves the performance + * seen by the user. + * Since, zlib is most useful for slow networks, this flush + * is appropriate for the desired behavior of the zlib encoding. + */ + if (( cl->ublen > 0 ) && + ( linesToComp == maxLines )) { + if (!rfbSendUpdateBuf(cl)) { + + return FALSE; + } + } + + /* Update remaining and incremental rectangle location. */ + linesRemaining -= linesToComp; + partialRect.y += linesToComp; + + } + + return TRUE; + +} + + |