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/*
* tableinitcmtemplate.c - template for initialising lookup tables for
* translation from a colour map to true colour.
*
* This file shouldn't be compiled. It is included multiple times by
* translate.c, each time with a different definition of the macro OUTBPP.
* For each value of OUTBPP, this file defines a function which allocates an
* appropriately sized lookup table and initialises it.
*
* I know this code isn't nice to read because of all the macros, but
* efficiency is important here.
*/
#if !defined(OUTBPP)
#error "This file shouldn't be compiled."
#error "It is included as part of translate.c"
#endif
#define OUT_T CONCAT2E(CARD,OUTBPP)
#define SwapOUT(x) CONCAT2E(Swap,OUTBPP) (x)
#define rfbInitColourMapSingleTableOUT \
CONCAT2E(rfbInitColourMapSingleTable,OUTBPP)
#include <vdr/plugin.h>
#include "osdworker.h"
// THIS CODE HAS BEEN MODIFIED FROM THE ORIGINAL UNIX SOURCE
// TO WORK FOR WINVNC. THE PALETTE SHOULD REALLY BE RETRIEVED
// FROM THE VNCDESKTOP OBJECT, RATHER THAN FROM THE OS DIRECTLY
static void
rfbInitColourMapSingleTableOUT (char **table,
rfbPixelFormat *in,
rfbPixelFormat *out)
{
fprintf(stderr, "[ffnetdev] VNC: rfbInitColourMapSingleTable called\n");
// ALLOCATE SPACE FOR COLOUR TABLE
int nEntries = 1 << in->bitsPerPixel;
// Allocate the table
if (*table) free(*table);
*table = (char *)malloc(nEntries * sizeof(OUT_T));
if (*table == NULL)
{
fprintf(stderr, "[ffnetdev] VNC: failed to allocate translation table\n");
return;
}
// Obtain the system palette
/*
HDC hDC = GetDC(NULL);
PALETTEENTRY palette[256];
if (GetSystemPaletteEntries(hDC,
0, 256, palette) == 0)
{
fprintf(stderr, "[ffnetdev] VNC: failed to get system palette, error=%d\n",
GetLastError());
ReleaseDC(NULL, hDC);
return;
}
ReleaseDC(NULL, hDC);
*/
const tColor *pColors;
int NumColors;
cOSDWorker::GetOSDColors(&pColors, &NumColors);
// COLOUR TRANSLATION
// We now have the colour table intact. Map it into a translation table
int i, r, g, b;
OUT_T outRed, outGreen, outBlue;
OUT_T *t = (OUT_T *)*table;
const tColor *pColor = pColors;
for (i = 0; i < NumColors; i++)
{
// Split down the RGB data
r = (((tColor)*pColor) >> in->redShift) & in->redMax;
g = (((tColor)*pColor) >> in->greenShift) & in->greenMax;
b = (((tColor)*pColor) >> in->blueShift) & in->blueMax;
outRed = (r / (256 / (1 + Swap16IfLE(out->redMax )))) & Swap16IfLE(out->redMax);
outGreen = (g / (256 / (1 + Swap16IfLE(out->greenMax)))) & Swap16IfLE(out->greenMax);
outBlue = (b / (256 / (1 + Swap16IfLE(out->blueMax )))) & Swap16IfLE(out->blueMax);
// Now translate it
t[i] = ((outRed << out->redShift) |
(outGreen << out->greenShift) |
(outBlue << out->blueShift));
#if (OUTBPP != 8)
if (out->bigEndian != in->bigEndian)
{
t[i] = SwapOUT(t[i]);
}
#endif
pColor++;
}
fprintf(stderr, "[ffnetdev] VNC: rfbInitColourMapSingleTable done\n");
}
#undef OUT_T
#undef SwapOUT
#undef rfbInitColourMapSingleTableOUT
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