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softgpu: Working ARGB4444 texture support.

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Tony Wasserka 2013-06-25 19:46:21 +02:00 • committed by neobrain
parent 7899a9b9c9
commit f6b51dcd55
1 changed files with 7 additions and 4 deletions
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11
GPU/Software/Rasterizer.cpp
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@ -47,12 +47,15 @@ u32 SampleNearest(int level, float s, float t)
// TODO: Assert tmap.tmn == 0 (uv texture mapping mode)
if (texfmt == GE_TFMT_4444) {
// TODO: no idea if this is correct
srcptr += 2 * v * width + 2 * u;
u8 r = (*srcptr) >> 4;
u8 g = (*srcptr) & 0xFF;
u8 g = (*srcptr) & 0xF;
u8 b = (*(srcptr+1)) >> 4;
u8 a = (*(srcptr+1)) & 0xFF;
u8 a = (*(srcptr+1)) & 0xF;
r = (r << 4) | r;
g = (g << 4) | g;
b = (b << 4) | b;
a = (a << 4) | a;
return (r << 24) | (g << 16) | (b << 8) | a;
}
}
@ -94,7 +97,7 @@ void DrawTriangle(VertexData vertexdata[3])
float s = vertexdata[0].texturecoords.s() * w0 / w + vertexdata[1].texturecoords.s() * w1 / w + vertexdata[2].texturecoords.s() * w2 / w;
float t = vertexdata[0].texturecoords.t() * w0 / w + vertexdata[1].texturecoords.t() * w1 / w + vertexdata[2].texturecoords.t() * w2 / w;
u32 color = /*TextureDecoder::*/SampleNearest(0, s, t);
*(u32*)&fb[p.x*4+p.y*FB_WIDTH*4] = color | 0xff007f00; // first: purple, second: dark blue, third: greenish, fourth: red-ish
*(u32*)&fb[p.x*4+p.y*FB_WIDTH*4] = color | 0xff7f0000;
}
}
}