From 281bc90ad2afe16853178a56e0127cff8b53eb14 Mon Sep 17 00:00:00 2001 From: bunnei Date: Sat, 12 Sep 2015 18:56:12 -0400 Subject: [PATCH] pica: Implement fragment lighting LUTs. --- src/video_core/command_processor.cpp | 15 +++++++++++++++ src/video_core/pica.h | 19 +++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/src/video_core/command_processor.cpp b/src/video_core/command_processor.cpp index 59c75042c7..7409534b6f 100644 --- a/src/video_core/command_processor.cpp +++ b/src/video_core/command_processor.cpp @@ -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; } diff --git a/src/video_core/pica.h b/src/video_core/pica.h index 81a568e885..b09484de43 100644 --- a/src/video_core/pica.h +++ b/src/video_core/pica.h @@ -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(value) / 4095.f; + } + }; + + std::array luts[24]; + } lighting; + /// Current Pica command list struct { const u32* head_ptr;