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pica: Implement fragment lighting LUTs.

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This commit is contained in:
bunnei 2015-09-12 18:56:12 -04:00
parent 4369767c72
commit 281bc90ad2
2 changed files with 34 additions and 0 deletions
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15
src/video_core/command_processor.cpp
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@ -464,6 +464,21 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
break;
}
case PICA_REG_INDEX_WORKAROUND(lighting.lut_data[0], 0x1c8):
case PICA_REG_INDEX_WORKAROUND(lighting.lut_data[1], 0x1c9):
case PICA_REG_INDEX_WORKAROUND(lighting.lut_data[2], 0x1ca):
case PICA_REG_INDEX_WORKAROUND(lighting.lut_data[3], 0x1cb):
case PICA_REG_INDEX_WORKAROUND(lighting.lut_data[4], 0x1cc):
case PICA_REG_INDEX_WORKAROUND(lighting.lut_data[5], 0x1cd):
case PICA_REG_INDEX_WORKAROUND(lighting.lut_data[6], 0x1ce):
case PICA_REG_INDEX_WORKAROUND(lighting.lut_data[7], 0x1cf):
{
auto& lut_config = regs.lighting.lut_config;
g_state.lighting.luts[lut_config.type][lut_config.index].raw = value;
lut_config.index = lut_config.index + 1;
break;
}
default:
break;
}

19
src/video_core/pica.h
View file

@ -1156,6 +1156,25 @@ struct State {
ShaderSetup vs;
ShaderSetup gs;
struct {
union LutEntry {
// Used for raw access
u32 raw;
// LUT value, encoded as 12-bit fixed point, with 12 fraction bits
BitField< 0, 12, u32> value;
// Used by HW for efficient interpolation, Citra does not use these
BitField<12, 12, u32> difference;
float ToFloat() {
return static_cast<float>(value) / 4095.f;
}
};
std::array<LutEntry, 256> luts[24];
} lighting;
/// Current Pica command list
struct {
const u32* head_ptr;