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Pica: Implement color/alpha channel enable.

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This commit is contained in:
bunnei 2015-01-27 17:26:09 -05:00
parent 9f93367aa0
commit b522cf4e6a
2 changed files with 12 additions and 1 deletions
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4
src/video_core/pica.h
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@ -370,6 +370,10 @@ struct Regs {
union {
BitField< 0, 1, u32> depth_test_enable;
BitField< 4, 3, CompareFunc> depth_test_func;
BitField< 8, 1, u32> red_enable;
BitField< 9, 1, u32> green_enable;
BitField<10, 1, u32> blue_enable;
BitField<11, 1, u32> alpha_enable;
BitField<12, 1, u32> depth_write_enable;
};

9
src/video_core/rasterizer.cpp
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@ -594,7 +594,14 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
exit(0);
}
DrawPixel(x >> 4, y >> 4, combiner_output);
const Math::Vec4<u8> result = {
registers.output_merger.red_enable ? combiner_output.r() : dest.r(),
registers.output_merger.green_enable ? combiner_output.g() : dest.g(),
registers.output_merger.blue_enable ? combiner_output.b() : dest.b(),
registers.output_merger.alpha_enable ? combiner_output.a() : dest.a()
};
DrawPixel(x >> 4, y >> 4, result);
}
}
}