Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 770 insertions, 0 deletions

diff --git a/kfax/viewfax.cpp b/kfax/viewfax.cpp
new file mode 100644
index 00000000..fe1e4246
--- /dev/null
+++ b/kfax/viewfax.cpp
@@ -0,0 +1,770 @@
+/*
+
+ KFax -- A G3/G4 Fax Viewer
+
+ Copyrigh (C) 1997 Bernd Johannes Wuebben
+ wuebben@math.cornell.edu
+ wuebben@kde.org
+
+ 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