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+/*
+
+ KFax -- A G3/G4 Fax Viewer
+
+ Copyrigh (C) 1997 Bernd Johannes Wuebben
+ [email protected]
+ [email protected]
+
+ Based on:
+
+ viewfax - g3/g4 fax processing software.
+ Copyright (C) 1990, 1995 Frank D. Cringle.
+
+ This file is part of viewfax - g3/g4 fax processing software.
+
+ viewfax 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+*/
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include <qglobal.h>
+#include <qdir.h>
+#include <qfile.h>
+#include <qevent.h>
+#include <qprinter.h>
+#include <qstring.h>
+
+#include <kcmdlineargs.h>
+#include <klocale.h>
+
+#include "kfax.h"
+#include "faxexpand.h"
+#include "version.h"
+#include "viewfax.h"
+
+/* NewImage() needs to fiddle with the Display structure */
+#define XLIB_ILLEGAL_ACCESS
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#include <X11/keysym.h>
+#include <X11/keysymdef.h>
+#include <X11/cursorfont.h>
+
+
+#define VIEWFAXVERSION "2.3"
+
+
+/* If moving the image around with the middle mouse button is jerky or
+ slow, try defining USE_MOTIONHINT. It may help (it may also make
+ things worse - it depends on the server implementation) */
+#undef USE_MOTIONHINT
+
+
+
+/* access the 'extra' field in a pagenode */
+
+#define Pimage(p) ((XImage *)(p)->extra)
+
+
+/* forward declarations */
+
+XImage *FlipImage(XImage *xi);
+XImage *MirrorImage(XImage *xi);
+XImage *NewImage(int w, int h, char *data, int bit_order);
+XImage *RotImage(XImage *Image);
+XImage *ZoomImage(XImage *Big);
+
+void FreeImage(XImage *Image);
+
+static int release(int quit);
+
+
+/* X variables */
+
+extern Cursor WorkCursor;
+extern Cursor ReadyCursor;
+extern Cursor MoveCursor;
+extern Cursor LRCursor;
+extern Cursor UDCursor;
+
+extern bool have_no_fax;
+extern Display* qtdisplay ;
+extern Window qtwin;
+extern Window Win;
+extern int qwindow_width;
+extern int qwindow_height;
+
+struct pagenode *firstpage, *lastpage, *thispage, *helppage, *auxpage;
+struct pagenode defaultpage;
+
+Display *Disp;
+
+int Default_Screen;
+int verbose = 0;
+
+int abell = 1; /* audio bell */
+int vbell = 0; /* visual bell */
+bool have_cmd_opt = FALSE;
+
+size_t Memused = 0; /* image memory usage */
+static size_t Memlimit = 8*1024*1024; /* try not to exceed */
+
+#undef min
+#undef max
+#define min(a,b) ((a)<(b)?(a):(b))
+#define max(a,b) ((a)>(b)?(a):(b))
+
+#ifndef EXIT_FAILURE
+#define EXIT_FAILURE 1
+#endif
+
+/* OK, OK - this is a dreadful hack. But it adequately distinguishes
+ modern big- and little- endian hosts. We only need this to set the
+ byte order in XImage structures */
+
+static union { t32bits i; unsigned char b[4]; } bo;
+#define ByteOrder bo.b[3]
+
+static char Banner[] =
+"KFax version " KFAXVERSION "\tCopyright (C) 1997, Bernd Johannes Wuebben\n";
+
+/*"KFax is based on:\n"
+"viewfax " VERSION ":\t\tCopyright (c) 1990, 1995 Frank D. Cringle.\n"
+"libtiff v 3.4beta:\tCopyright (c) 1988 - 1955 Sam Leffler\n"
+" \tCopyright (c) 1991 - 1995 Silicon Graphics, Inc.\n\n"
+"KFax comes with ABSOLUTELY NO WARRANTY; for details see the\n"
+"file \"COPYING\" in the distribution directory.\n";*/
+
+XEvent Event;
+XImage *Image, *Images[MAXZOOM];
+XSizeHints size_hints;
+
+Time Lasttime = 0;
+
+struct pagenode *viewpage = 0;
+
+int viewfaxmain()
+{
+ int banner = 0;
+ int have_height = 0;
+
+ bo.i = 1;
+ defaultpage.vres = -1;
+ have_no_fax = TRUE;
+
+ /* TODO Do I need to know this: */
+ defaultpage.expander = g31expand;
+
+ KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
+
+ if (args->isSet("height"))
+ {
+ have_height = 1;
+ defaultpage.height = args->getOption("height").toInt();
+ }
+
+ if (args->isSet("2"))
+ {
+ defaultpage.expander = g32expand;
+ if(!have_height)
+ defaultpage.height = 2339;
+ }
+
+ if (args->isSet("4"))
+ {
+ defaultpage.expander = g4expand;
+ if(!have_height)
+ defaultpage.height = 2155;
+ }
+
+ if (args->isSet("invert"))
+ {
+ defaultpage.inverse = 1;
+ }
+
+ if (args->isSet("landscape"))
+ {
+ defaultpage.orient |= TURN_L;
+ }
+
+ if (args->isSet("fine"))
+ {
+ defaultpage.vres = 1;
+ }
+
+ if (!args->isSet("rmal")) // "normal" is interpreted as "no"+"rmal" :-)
+ {
+ defaultpage.vres = 0;
+ }
+
+ if (args->isSet("reverse"))
+ {
+ defaultpage.lsbfirst = 1;
+ }
+
+ if (args->isSet("upsidedown"))
+ {
+ defaultpage.orient |= TURN_U;
+ }
+
+ if (args->isSet("width"))
+ {
+ defaultpage.width = args->getOption("width").toInt();
+ }
+
+ QCString mem = args->getOption("mem");
+ Memlimit = atoi(mem.data());
+ switch(mem[mem.length()-1]) {
+ case 'M':
+ case 'm':
+ Memlimit *= 1024;
+ case 'K':
+ case 'k':
+ Memlimit *= 1024;
+ }
+
+ if (defaultpage.expander == g4expand && defaultpage.height == 0) {
+ KCmdLineArgs::usage("--height value is required to interpret raw g4 faxes\n");
+ }
+
+ firstpage = lastpage = thispage = helppage = auxpage = 0;
+
+ for (int i = 0; i < args->count(); i++){
+ loadfile(QFile::decodeName(args->arg(i)));
+ }
+ args->clear();
+
+ if (banner ) {
+ fputs(Banner, stderr);
+ exit(1);
+ }
+
+ have_no_fax = (firstpage == 0);
+
+ Disp = qtdisplay;
+ Default_Screen = XDefaultScreen(qtdisplay);
+
+ return 1;
+}
+
+
+/* Change orientation of all following pages */
+void TurnFollowing(int How, struct pagenode *pn)
+{
+ while (pn) {
+ if (Pimage(pn)) {
+ FreeImage(Pimage(pn));
+ pn->extra = 0;
+ }
+ pn->orient ^= How;
+ pn = pn->next;
+ }
+}
+
+static void
+drawline(pixnum *run, int LineNum, struct pagenode *pn)
+{
+ t32bits *p, *p1; /* p - current line, p1 - low-res duplicate */
+ pixnum *r; /* pointer to run-lengths */
+ t32bits pix; /* current pixel value */
+ t32bits acc; /* pixel accumulator */
+ int nacc; /* number of valid bits in acc */
+ int tot; /* total pixels in line */
+ int n;
+
+ LineNum += pn->stripnum * pn->rowsperstrip;
+ if (LineNum >= pn->height) {
+ if (verbose && LineNum == pn->height)
+ fputs("Height exceeded\n", stderr);
+ return;
+ }
+
+ p = (t32bits *) (Pimage(pn)->data + LineNum*(2-pn->vres)*Pimage(pn)->bytes_per_line);
+ p1 =(t32bits *)( pn->vres ? 0 : p + Pimage(pn)->bytes_per_line/sizeof(*p));
+ r = run;
+ acc = 0;
+ nacc = 0;
+ pix = pn->inverse ? ~0 : 0;
+ tot = 0;
+ while (tot < pn->width) {
+ n = *r++;
+ tot += n;
+ /* Watch out for buffer overruns, e.g. when n == 65535. */
+ if (tot > pn->width)
+ break;
+ if (pix)
+ acc |= (~(t32bits)0 >> nacc);
+ else if (nacc)
+ acc &= (~(t32bits)0 << (32 - nacc));
+ else
+ acc = 0;
+ if (nacc + n < 32) {
+ nacc += n;
+ pix = ~pix;
+ continue;
+ }
+ *p++ = acc;
+ if (p1)
+ *p1++ = acc;
+ n -= 32 - nacc;
+ while (n >= 32) {
+ n -= 32;
+ *p++ = pix;
+ if (p1)
+ *p1++ = pix;
+ }
+ acc = pix;
+ nacc = n;
+ pix = ~pix;
+ }
+ if (nacc) {
+ *p++ = acc;
+ if (p1)
+ *p1++ = acc;
+ }
+}
+
+static int
+GetPartImage(struct pagenode *pn, int n)
+{
+ unsigned char *Data = getstrip(pn, n);
+
+ if (Data == 0)
+ return 3;
+ pn->stripnum = n;
+ (*pn->expander)(pn, drawline);
+ free(Data);
+ return 1;
+}
+
+int GetImage(struct pagenode *pn){
+ int i;
+
+ if (pn->strips == 0) {
+
+ /*printf("RAW fax file\n");*/
+
+ /* raw file; maybe we don't have the height yet */
+ unsigned char *Data = getstrip(pn, 0);
+ if (Data == 0){
+
+ return 0;
+ }
+ pn->extra = NewImage(pn->width, pn->vres ?
+ pn->height : 2*pn->height, 0, 1);
+
+//printf("height = %d\n",pn->height);
+//printf("setting height to %d\n", pn->vres ? pn->height : 2*pn->height);
+
+ if(pn->extra == 0)
+ return 0;
+
+ (*pn->expander)(pn, drawline);
+ }
+ else {
+ /* multi-strip tiff */
+ /*printf("MULTI STRIP TIFF fax file\n");*/
+
+ pn->extra = NewImage(pn->width, pn->vres ?
+ pn->height : 2*pn->height, 0, 1);
+
+ if(pn->extra == 0)
+ return 0;
+ pn->stripnum = 0;
+ for (i = 0; i < pn->nstrips; i++){
+
+ int k =GetPartImage(pn, i);
+
+ if ( k == 3 ){
+ FreeImage(Pimage(pn));
+ return k;
+ }
+
+ }
+ }
+ if (pn->orient & TURN_U)
+ pn->extra = FlipImage(Pimage(pn));
+ if (pn->orient & TURN_M)
+ pn->extra = MirrorImage(Pimage(pn));
+ if (pn->orient & TURN_L)
+ pn->extra = RotImage(Pimage(pn));
+ if (verbose) printf("\tmemused = %d\n", Memused);
+
+/*
+if(pn->extra)
+ printf("pn->extra !=0 %s\n",pn->name);
+else
+ printf("pn->extra ==0 %s\n",pn->name);
+ */
+
+ return 1;
+}
+
+
+
+/* run this region through perl to generate the zoom table:
+$lim = 1;
+@c = ("0", "1", "1", "2");
+print "static unsigned char Z[] = {\n";
+for ($i = 0; $i < 16; $i++) {
+ for ($j = 0; $j < 16; $j++) {
+ $b1 = ($c[$j&3]+$c[$i&3]) > $lim;
+ $b2 = ($c[($j>>2)&3]+$c[($i>>2)&3]) > $lim;
+ printf " %X,", ($b2 << 1) | $b1;
+ }
+ print "\n";
+}
+print "};\n";
+*/
+
+static unsigned char Z[] = {
+ 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 2, 2, 2, 3,
+ 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 2, 3, 3, 3,
+ 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 2, 3, 3, 3,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 3,
+ 0, 0, 0, 1, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3,
+ 0, 1, 1, 1, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3,
+ 0, 1, 1, 1, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3,
+ 1, 1, 1, 1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 0, 0, 0, 1, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3,
+ 0, 1, 1, 1, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3,
+ 0, 1, 1, 1, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3,
+ 1, 1, 1, 1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3,
+ 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3,
+ 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+};
+
+#define nib(n,w) (((w)>>((n)<<2))&15)
+#define zak(a,b) Z[(a<<4)|b]
+
+/* 2 -> 1 zoom, 4 pixels -> 1 pixel
+ if #pixels <= $lim (see above), new pixel is white,
+ else black.
+*/
+
+XImage *ZoomImage(XImage *Big){
+
+ XImage *Small;
+ int w, h;
+ int i, j;
+
+ XDefineCursor(Disp, Win, WorkCursor);
+ XFlush(Disp);
+ w = (Big->width+1) / 2;
+ h = (Big->height+1) / 2;
+ Small = NewImage(w, h, 0, Big->bitmap_bit_order);
+ if(Small == 0)
+ return 0;
+
+ Small->xoffset = (Big->xoffset+1)/2;
+ for (i = 0; i < Big->height; i += 2) {
+ t32bits *pb0 = (t32bits *) (Big->data + i * Big->bytes_per_line);
+ t32bits *pb1 = pb0 + ((i == Big->height-1) ? 0 : Big->bytes_per_line/4);
+ t32bits *ps = (t32bits *) (Small->data + i * Small->bytes_per_line / 2);
+ for (j = 0; j < Big->bytes_per_line/8; j++) {
+ t32bits r1, r2;
+ t32bits t0 = *pb0++;
+ t32bits t1 = *pb1++;
+ r1 = (zak(nib(7,t0),nib(7,t1))<<14) |
+ (zak(nib(6,t0),nib(6,t1))<<12) |
+ (zak(nib(5,t0),nib(5,t1))<<10) |
+ (zak(nib(4,t0),nib(4,t1))<<8) |
+ (zak(nib(3,t0),nib(3,t1))<<6) |
+ (zak(nib(2,t0),nib(2,t1))<<4) |
+ (zak(nib(1,t0),nib(1,t1))<<2) |
+ (zak(nib(0,t0),nib(0,t1)));
+ t0 = *pb0++;
+ t1 = *pb1++;
+ r2 = (zak(nib(7,t0),nib(7,t1))<<14) |
+ (zak(nib(6,t0),nib(6,t1))<<12) |
+ (zak(nib(5,t0),nib(5,t1))<<10) |
+ (zak(nib(4,t0),nib(4,t1))<<8) |
+ (zak(nib(3,t0),nib(3,t1))<<6) |
+ (zak(nib(2,t0),nib(2,t1))<<4) |
+ (zak(nib(1,t0),nib(1,t1))<<2) |
+ (zak(nib(0,t0),nib(0,t1)));
+ *ps++ = (Big->bitmap_bit_order) ?
+ (r1<<16)|r2 : (r2<<16)|r1;
+ }
+ for ( ; j < Small->bytes_per_line/4; j++) {
+ t32bits r1;
+ t32bits t0 = *pb0++;
+ t32bits t1 = *pb1++;
+ r1 = (zak(nib(7,t0),nib(7,t1))<<14) |
+ (zak(nib(6,t0),nib(6,t1))<<12) |
+ (zak(nib(5,t0),nib(5,t1))<<10) |
+ (zak(nib(4,t0),nib(4,t1))<<8) |
+ (zak(nib(3,t0),nib(3,t1))<<6) |
+ (zak(nib(2,t0),nib(2,t1))<<4) |
+ (zak(nib(1,t0),nib(1,t1))<<2) |
+ (zak(nib(0,t0),nib(0,t1)));
+ *ps++ = (Big->bitmap_bit_order) ?
+ (r1<<16) : r1;
+ }
+ }
+ XDefineCursor(Disp, Win, ReadyCursor);
+ return Small;
+}
+
+XImage *FlipImage(XImage *Image){
+
+ XImage *New = NewImage(Image->width, Image->height,
+ Image->data, !Image->bitmap_bit_order);
+ if(New == 0)
+ return 0;
+
+ t32bits *p1 = (t32bits *) Image->data;
+ t32bits *p2 = (t32bits *) (Image->data + Image->height *
+ Image->bytes_per_line - 4);
+
+ /* the first shall be last ... */
+ while (p1 < p2) {
+ t32bits t = *p1;
+ *p1++ = *p2;
+ *p2-- = t;
+ }
+
+ /* let Xlib twiddle the bits */
+ New->xoffset = 32 - (Image->width & 31) - Image->xoffset;
+ New->xoffset &= 31;
+
+ Image->data = 0;
+ FreeImage(Image);
+ return New;
+}
+
+XImage *MirrorImage(XImage *Image){
+
+ int i;
+ XImage *New = NewImage(Image->width, Image->height,
+ Image->data, !Image->bitmap_bit_order);
+ if(New == 0)
+ return 0;
+
+ /* reverse order of 32-bit words in each line */
+ for (i = 0; i < Image->height; i++) {
+ t32bits *p1 = (t32bits *) (Image->data + Image->bytes_per_line * i);
+ t32bits *p2 = p1 + Image->bytes_per_line/4 - 1;
+ while (p1 < p2) {
+ t32bits t = *p1;
+ *p1++ = *p2;
+ *p2-- = t;
+ }
+ }
+
+ /* let Xlib twiddle the bits */
+ New->xoffset = 32 - (Image->width & 31) - Image->xoffset;
+ New->xoffset &= 31;
+
+ Image->data = 0;
+ FreeImage(Image);
+ return New;
+}
+
+XImage *RotImage(XImage *Image){
+
+ XImage *New;
+ int w = Image->height;
+ int h = Image->width;
+ int i, j, k, shift;
+ int order = Image->bitmap_bit_order;
+ int offs = h+Image->xoffset-1;
+
+ New = NewImage(w, h, 0, 1);
+ if (New == 0)
+ return 0;
+
+ k = (32 - Image->xoffset) & 3;
+ for (i = h - 1; i && k; i--, k--) {
+ t32bits *sp = (t32bits *) Image->data + (offs-i)/32;
+ t32bits *dp = (t32bits *) (New->data+i*New->bytes_per_line);
+ t32bits d0 =0;
+ shift = (offs-i)&31;
+ if (order) shift = 31-shift;
+ for (j = 0; j < w; j++) {
+ t32bits t = *sp;
+ sp += Image->bytes_per_line/4;
+ d0 |= ((t >> shift) & 1);
+ if ((j & 31) == 31)
+ *dp++ = d0;
+ d0 <<= 1;;
+ }
+ if (j & 31)
+ *dp++ = d0<<(31-j);
+ }
+ for ( ; i >= 3; i-=4) {
+ t32bits *sp = (t32bits *) Image->data + (offs-i)/32;
+ t32bits *dp0 = (t32bits *) (New->data+i*New->bytes_per_line);
+ t32bits *dp1 = dp0 - New->bytes_per_line/4;
+ t32bits *dp2 = dp1 - New->bytes_per_line/4;
+ t32bits *dp3 = dp2 - New->bytes_per_line/4;
+ t32bits d0=0 , d1=0, d2 =0, d3 =0;
+ shift = (offs-i)&31;
+ if (order) shift = 28-shift;
+ for (j = 0; j < w; j++) {
+ t32bits t = *sp >> shift;
+ sp += Image->bytes_per_line/4;
+ d0 |= t & 1; t >>= 1;
+ d1 |= t & 1; t >>= 1;
+ d2 |= t & 1; t >>= 1;
+ d3 |= t & 1; t >>= 1;
+ if ((j & 31) == 31) {
+ if (order) {
+ *dp0++ = d3;
+ *dp1++ = d2;
+ *dp2++ = d1;
+ *dp3++ = d0;
+ }
+ else {
+ *dp0++ = d0;
+ *dp1++ = d1;
+ *dp2++ = d2;
+ *dp3++ = d3;
+ }
+ }
+ d0 <<= 1; d1 <<= 1; d2 <<= 1; d3 <<= 1;
+ }
+ if (j & 31) {
+ if (order) {
+ *dp0++ = d3<<(31-j);
+ *dp1++ = d2<<(31-j);
+ *dp2++ = d1<<(31-j);
+ *dp3++ = d0<<(31-j);
+ }
+ else {
+ *dp0++ = d0<<(31-j);
+ *dp1++ = d1<<(31-j);
+ *dp2++ = d2<<(31-j);
+ *dp3++ = d3<<(31-j);
+ }
+ }
+ }
+ for (; i >= 0; i--) {
+ t32bits *sp = (t32bits *) Image->data + (offs-i)/32;
+ t32bits *dp = (t32bits *) (New->data+i*New->bytes_per_line);
+ t32bits d0=0;
+ shift = (offs-i)&31;
+ if (order) shift = 31-shift;
+ for (j = 0; j < w; j++) {
+ t32bits t = *sp;
+ sp += Image->bytes_per_line/4;
+ d0 |= ((t >> shift) & 1);
+ if ((j & 31) == 31)
+ *dp++ = d0;
+ d0 <<= 1;;
+ }
+ if (j & 31)
+ *dp++ = d0<<(31-j);
+ }
+ FreeImage(Image);
+ return New;
+}
+
+/* release some non-essential memory or abort */
+#define Try(n) \
+ if (n && n != thispage && n->extra) { \
+ FreeImage((XImage*)n->extra); \
+ n->extra = 0; \
+ return 1; \
+ }
+
+static int
+release(int quit)
+{
+ (void) quit;
+
+ struct pagenode *pn;
+
+ if (thispage) {
+ /* first consider "uninteresting" pages */
+ for (pn = firstpage->next; pn; pn = pn->next)
+ if (pn->extra && pn != thispage && pn != thispage->prev &&
+ pn != thispage->next && pn != lastpage) {
+ FreeImage(Pimage(pn));
+ pn->extra = 0;
+ return 1;
+ }
+ Try(lastpage);
+ Try(firstpage);
+ Try(thispage->prev);
+ Try(thispage->next);
+ }
+
+ return 0;
+
+}
+
+XImage *NewImage(int w, int h, char *data, int bit_order){
+
+ XImage *newimage;
+ /* This idea is taken from xwud/xpr. Use a fake display with the
+ desired bit/byte order to get the image routines initialised
+ correctly */
+ Display fake;
+
+ fake = *Disp;
+ if (data == 0)
+ data = xmalloc(((w + 31) & ~31) * h / 8);
+ fake.byte_order = ByteOrder;
+ fake.bitmap_unit = 32;
+ fake.bitmap_bit_order = bit_order;
+
+ int returncode = -1;
+ while ((newimage = XCreateImage(&fake, DefaultVisual(Disp, Default_Screen),
+ 1, XYBitmap, 0, data, w, h, 32, 0)) == 0 ){
+
+ returncode = release(1);
+ if (returncode == 0)
+ break;
+ }
+
+ if (returncode == 0){
+ kfaxerror("Sorry","Can not allocate Memory for a new Fax Image\n");
+ return 0;
+ }
+
+ Memused += newimage->bytes_per_line * newimage->height;
+ /*printf("allocating %d bytes for %ld\n",
+ newimage->bytes_per_line * newimage->height,
+ newimage);*/
+
+
+ return newimage;
+}
+
+void FreeImage(XImage *Image){
+
+ if (Image->data){
+ Memused -= Image->bytes_per_line * Image->height;
+/*printf("deallocating %d bytes for %ld\n",
+ Image->bytes_per_line * Image->height,
+ Image);*/
+ }
+ XDestroyImage(Image);
+}
+
+#ifndef xmalloc
+char *
+xmalloc(unsigned int size)
+{
+ char *p;
+
+ while (Memused + size > Memlimit && release(0))
+ ;
+ while ((p = (char*) malloc(size)) == 0)
+ (void) release(1);
+ return p;
+}
+#endif
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-13 16:29:28 +0000