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More accurate 2D colours. White should map to 255 not 248

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This commit is contained in:
Ian Curtis 2016-11-15 12:44:47 +00:00
parent 483ba2f398
commit 10dd530cde
1 changed files with 5 additions and 4 deletions
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9
Src/Model3/TileGen.cpp
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@ -320,6 +320,7 @@ static inline UINT32 AddColorOffset(UINT8 r, UINT8 g, UINT8 b, UINT8 a, UINT32 o
* value might have to be multiplied by 2. That is assumed here. In either
* case, the signed addition should be saturated.
*/
ib = (INT32) (INT8)((offsetReg>>16)&0xFF);
ig = (INT32) (INT8)((offsetReg>>8)&0xFF);
ir = (INT32) (INT8)((offsetReg>>0)&0xFF);
@ -356,11 +357,11 @@ void CTileGen::WritePalette(unsigned color, UINT32 data)
r = g = b = 0;
else
{
b = (data>>7)&0xF8;
g = (data>>2)&0xF8;
r = (data<<3)&0xF8;
b = (((data >> 10) & 0x1F) * 255) / 31;
g = (((data >> 5) & 0x1F) * 255) / 31;
r = ((data & 0x1F) * 255) / 31;
}
pal[0][color] = AddColorOffset(r, g, b, a, regs[0x40/4]); // A/A'
pal[1][color] = AddColorOffset(r, g, b, a, regs[0x44/4]); // B/B'
}