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Corrected the RGB values generated for a given EGA palette index

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svn-id: r30224
This commit is contained in:
Paul Gilbert 2008-01-05 07:20:26 +00:00
parent b75d196e88
commit 610880dc67
1 changed files with 19 additions and 3 deletions
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22
engines/lure/palette.cpp
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@ -119,14 +119,30 @@ void Palette::convertRgb64Palette(const byte *srcPalette, uint16 srcNumEntries)
}
}
// EGA palette definition copied from DOSBox 0.72
static byte ega_palette[64][3] =
{
{0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a},
{0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a},
{0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f},
{0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f},
{0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a},
{0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a},
{0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f},
{0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f}
};
void Palette::convertEGAPalette(const byte *srcPalette) {
byte *pDest = _palette->data();
const byte *pSrc = srcPalette;
for (int index = 0; index < 16; ++index, ++pSrc) {
*pDest++ = (((*pSrc >> 5) & 1) | ((*pSrc >> 1) & 2)) * 0x55;
*pDest++ = (((*pSrc >> 4) & 1) | (*pSrc & 2)) * 0x55;
*pDest++ = (((*pSrc >> 3) & 1) | ((*pSrc << 1) & 2)) * 0x55;
// Handle RGB components of entry
assert(*pSrc < 64);
byte *v = &ega_palette[*pSrc][0];
*pDest++ = *v++ * 4;
*pDest++ = *v++ * 4;
*pDest++ = *v++ * 4;
*pDest++ = 0;
}
}