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interpolated colors are rounded up if >= .5

This commit is contained in:
Jaklyy 2024-05-29 13:16:58 -04:00
parent b96d7c5fad
commit 0d11ead1b2
1 changed files with 9 additions and 9 deletions
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18
src/GPU3D_Soft.cpp
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@ -317,9 +317,9 @@ void SoftRenderer::TextureLookup(const GPU& gpu, u32 texparam, u32 texpal, s16 s
u32 g1 = color1 & 0x03E0;
u32 b1 = color1 & 0x7C00;
*tr = (r0 + r1) & 0x3E;
*tg = ((g0 + g1) >> 5) & 0x3E;
*tb = ((b0 + b1) >> 10) & 0x3E;
*tr = (r0 + r1) + 1 & 0x3E;
*tg = ((g0 + g1) >> 5) + 1 & 0x3E;
*tb = ((b0 + b1) >> 10) + 1 & 0x3E;
}
else if ((palinfo >> 14) == 3)
{
@ -333,9 +333,9 @@ void SoftRenderer::TextureLookup(const GPU& gpu, u32 texparam, u32 texpal, s16 s
u32 g1 = color1 & 0x03E0;
u32 b1 = color1 & 0x7C00;
*tr = ((r0*5 + r1*3) >> 2) & 0x3E;
*tg = ((g0*5 + g1*3) >> 7) & 0x3E;
*tb = ((b0*5 + b1*3) >> 12) & 0x3E;
*tr = ((r0*5 + r1*3) >> 2) + 1 & 0x3E;
*tg = ((g0*5 + g1*3) >> 7) + 1 & 0x3E;
*tb = ((b0*5 + b1*3) >> 12) + 1 & 0x3E;
}
else
{
@ -364,9 +364,9 @@ void SoftRenderer::TextureLookup(const GPU& gpu, u32 texparam, u32 texpal, s16 s
u32 g1 = color1 & 0x03E0;
u32 b1 = color1 & 0x7C00;
*tr = ((r0*3 + r1*5) >> 2) & 0x3E;
*tg = ((g0*3 + g1*5) >> 7) & 0x3E;
*tb = ((b0*3 + b1*5) >> 12) & 0x3E;
*tr = ((r0*3 + r1*5) >> 2) + 1 & 0x3E;
*tg = ((g0*3 + g1*5) >> 7) + 1 & 0x3E;
*tb = ((b0*3 + b1*5) >> 12) + 1 & 0x3E;
*alpha = 31;
}