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softgpu: Fix vertex color decoding.

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Tony Wasserka 2013-06-26 23:00:11 +02:00 committed by neobrain
parent 02f41ecbd6
commit ed5fa1f4ff
1 changed files with 4 additions and 4 deletions
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8
GPU/Software/Rasterizer.cpp
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@ -118,10 +118,10 @@ void DrawTriangle(VertexData vertexdata[3])
float den = 1.0f/vertexdata[0].clippos.w * w0 + 1.0f/vertexdata[1].clippos.w * w1 + 1.0f/vertexdata[2].clippos.w * w2;
float s = (vertexdata[0].texturecoords.s() * w0 / vertexdata[0].clippos.w + vertexdata[1].texturecoords.s() * w1 / vertexdata[1].clippos.w + vertexdata[2].texturecoords.s() * w2 / vertexdata[2].clippos.w) / den;
float t = (vertexdata[0].texturecoords.t() * w0 / vertexdata[0].clippos.w + vertexdata[1].texturecoords.t() * w1 / vertexdata[1].clippos.w + vertexdata[2].texturecoords.t() * w2 / vertexdata[2].clippos.w) / den;
u32 vcol0 = (int)((vertexdata[0].color0.x * w0 / vertexdata[0].clippos.w + vertexdata[1].color0.x * w1 / vertexdata[1].clippos.w + vertexdata[2].color0.x * w2 / vertexdata[2].clippos.w) / den * 255)*256*256*256 +
(int)((vertexdata[0].color0.y * w0 / vertexdata[0].clippos.w + vertexdata[1].color0.y * w1 / vertexdata[1].clippos.w + vertexdata[2].color0.y * w2 / vertexdata[2].clippos.w) / den * 255)*256*256 +
(int)((vertexdata[0].color0.z * w0 / vertexdata[0].clippos.w + vertexdata[1].color0.z * w1 / vertexdata[1].clippos.w + vertexdata[2].color0.z * w2 / vertexdata[2].clippos.w) / den * 255)*256 +
(int)((vertexdata[0].color0.w * w0 / vertexdata[0].clippos.w + vertexdata[1].color0.w * w1 / vertexdata[1].clippos.w + vertexdata[2].color0.w * w2 / vertexdata[2].clippos.w) / den * 255);
u32 vcol0 = (int)((vertexdata[0].color0.r() * w0 / vertexdata[0].clippos.w + vertexdata[1].color0.r() * w1 / vertexdata[1].clippos.w + vertexdata[2].color0.r() * w2 / vertexdata[2].clippos.w) / den * 255) +
(int)((vertexdata[0].color0.g() * w0 / vertexdata[0].clippos.w + vertexdata[1].color0.g() * w1 / vertexdata[1].clippos.w + vertexdata[2].color0.g() * w2 / vertexdata[2].clippos.w) / den * 255)*256 +
(int)((vertexdata[0].color0.b() * w0 / vertexdata[0].clippos.w + vertexdata[1].color0.b() * w1 / vertexdata[1].clippos.w + vertexdata[2].color0.b() * w2 / vertexdata[2].clippos.w) / den * 255)*256*256 +
(int)((vertexdata[0].color0.a() * w0 / vertexdata[0].clippos.w + vertexdata[1].color0.a() * w1 / vertexdata[1].clippos.w + vertexdata[2].color0.a() * w2 / vertexdata[2].clippos.w) / den * 255)*256*256*256;
u32 color = /*TextureDecoder::*/SampleNearest(0, s, t);
*(u32*)&fb[p.x*4+p.y*FB_WIDTH*4] = color | vcol0;
}