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-rw-r--r--krfb/libvncserver/translate.c484
1 files changed, 0 insertions, 484 deletions
diff --git a/krfb/libvncserver/translate.c b/krfb/libvncserver/translate.c
deleted file mode 100644
index a690321f..00000000
--- a/krfb/libvncserver/translate.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/*
- * translate.c - translate between different pixel formats
- */
-
-/*
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
- * 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");
- }
- }
-}
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