rfbBool
rfbSetTranslateFunction(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->serverFormat.bitsPerPixel != 8) &&
(cl->screen->serverFormat.bitsPerPixel != 16) &&
#ifdef LIBVNCSERVER_ALLOW24BPP
(cl->screen->serverFormat.bitsPerPixel != 24) &&
#endif
(cl->screen->serverFormat.bitsPerPixel != 32))
{
///rfbErr("%s: server bits per pixel not 8, 16 or 32 (is %d)\n",
/// "rfbSetTranslateFunction",
/// cl->screen->serverFormat.bitsPerPixel);
rfbCloseClient(cl);
return FALSE;
}
if ((cl->format.bitsPerPixel != 8) &&
(cl->format.bitsPerPixel != 16) &&
#ifdef LIBVNCSERVER_ALLOW24BPP
(cl->format.bitsPerPixel != 24) &&
#endif
(cl->format.bitsPerPixel != 32))
{
///rfbErr("%s: client bits per pixel not 8, 16 or 32\n",
/// "rfbSetTranslateFunction");
rfbCloseClient(cl);
return FALSE;
}
if (!cl->format.trueColour && (cl->format.bitsPerPixel != 8))
{
///rfbErr("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->serverFormat))
{
/* client & server the same */
///rfbLog("no translation needed\n");
cl->translateFn = rfbTranslateNone;
return TRUE;
}
if ((cl->screen->serverFormat.bitsPerPixel < 16) ||
((!cl->screen->serverFormat.trueColour || !rfbEconomicTranslate) &&
(cl->screen->serverFormat.bitsPerPixel == 16)))
{
/* we can use a single lookup table for <= 16 bpp */
cl->translateFn = rfbTranslateWithSingleTableFns
[BPP2OFFSET(cl->screen->serverFormat.bitsPerPixel)]
[BPP2OFFSET(cl->format.bitsPerPixel)];
if(cl->screen->serverFormat.trueColour)
(*rfbInitTrueColourSingleTableFns
[BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable,
&(cl->screen->serverFormat), &cl->format);
else
(*rfbInitColourMapSingleTableFns
[BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable,
&(cl->screen->serverFormat), &cl->format,&cl->screen->colourMap);
}
else
{
/* otherwise we use three separate tables for red, green and blue */
cl->translateFn = rfbTranslateWithRGBTablesFns
[BPP2OFFSET(cl->screen->serverFormat.bitsPerPixel)]
[BPP2OFFSET(cl->format.bitsPerPixel)];
(*rfbInitTrueColourRGBTablesFns
[BPP2OFFSET(cl->format.bitsPerPixel)]) (&cl->translateLookupTable,
&(cl->screen->serverFormat), &cl->format);
}
return TRUE;
}
Bool rfbSetTranslateFunctionUsingFormat(rfbClientPtr cl, rfbPixelFormat inFormat) {
/*
* Check that bits per pixel values are valid
*/
if ((inFormat.bitsPerPixel != 8) &&
(inFormat.bitsPerPixel != 16) &&
(inFormat.bitsPerPixel != 32))
{
rfbLog("%s: server bits per pixel not 8, 16 or 32\n",
"rfbSetTranslateFunction");
rfbCloseClient(cl);
return FALSE;
}
if ((cl->format.bitsPerPixel != 8) &&
(cl->format.bitsPerPixel != 16) &&
(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
*/
rfbLog("setting the client's color map to BGR233\n");
if (!rfbSetClientColourMapBGR233(cl))
return FALSE;
cl->format = BGR233Format;
}
/* truecolour -> truecolour */
if (PF_EQ(cl->format,inFormat)) {
/* client & server the same */
//rfbLog("no translation needed\n");
cl->translateFn = rfbTranslateNone;
return TRUE;
}
if ((inFormat.bitsPerPixel < 16) ||
(!rfbEconomicTranslate && (inFormat.bitsPerPixel == 16))) {
/* we can use a single lookup table for <= 16 bpp */
//rfbLog("single lookup table translation, function [%d][%d]\n", inFormat.bitsPerPixel / 16, cl->format.bitsPerPixel / 16);
cl->translateFn = rfbTranslateWithSingleTableFns
[inFormat.bitsPerPixel / 16]
[cl->format.bitsPerPixel / 16];
(*rfbInitTrueColourSingleTableFns
[cl->format.bitsPerPixel / 16]) (&cl->translateLookupTable,
&inFormat, &cl->format);
}
else {
//rfbLog("three tables for R, G, B\n");
/* otherwise we use three separate tables for red, green and blue */
cl->translateFn = rfbTranslateWithRGBTablesFns
[inFormat.bitsPerPixel / 16]
[cl->format.bitsPerPixel / 16];
(*rfbInitTrueColourRGBTablesFns
[cl->format.bitsPerPixel / 16]) (&cl->translateLookupTable,
&inFormat, &cl->format);
}
return TRUE;
}
