forgot files for 3 bpp

pnmshow24.c

+#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);
+}

tableinit24.c

+/*
+  24 bit
+ */
+
+/*
+ *  OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
+ *  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;
+    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 *)xalloc(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 *)xalloc((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;
+        }
+    }
+}

tabletrans24template.c

+/*
+ * 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 <mcguirk@incompleteness.net>.
+ *  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 / 3 - width;
+    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 / 3 - width;
+    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 / 3 - width;
+    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 / 3 - width;
+    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