#include <stdio.h> #include <stdlib.h> #include <rfb/rfb.h> #include <rfb/keysym.h> #include "default8x16.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) { 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 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,&default8x16Font,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,&default8x16Font,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); }