diff options
Diffstat (limited to '')
-rw-r--r-- | src/video_core/rasterizer.cpp | 49 |
1 files changed, 41 insertions, 8 deletions
diff --git a/src/video_core/rasterizer.cpp b/src/video_core/rasterizer.cpp index 3b3fef484..46a326bb4 100644 --- a/src/video_core/rasterizer.cpp +++ b/src/video_core/rasterizer.cpp @@ -90,7 +90,7 @@ static const Math::Vec4<u8> GetPixel(int x, int y) { UNIMPLEMENTED(); } - return {}; + return {0, 0, 0, 0}; } static u32 GetDepth(int x, int y) { @@ -376,7 +376,13 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0, // with some basic arithmetic. Alpha combiners can be configured separately but work // analogously. Math::Vec4<u8> combiner_output; - for (const auto& tev_stage : tev_stages) { + Math::Vec4<u8> combiner_buffer = { + registers.tev_combiner_buffer_color.r, registers.tev_combiner_buffer_color.g, + registers.tev_combiner_buffer_color.b, registers.tev_combiner_buffer_color.a + }; + + for (unsigned tev_stage_index = 0; tev_stage_index < tev_stages.size(); ++tev_stage_index) { + const auto& tev_stage = tev_stages[tev_stage_index]; using Source = Regs::TevStageConfig::Source; using ColorModifier = Regs::TevStageConfig::ColorModifier; using AlphaModifier = Regs::TevStageConfig::AlphaModifier; @@ -398,6 +404,9 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0, case Source::Texture2: return texture_color[2]; + case Source::PreviousBuffer: + return combiner_buffer; + case Source::Constant: return {tev_stage.const_r, tev_stage.const_g, tev_stage.const_b, tev_stage.const_a}; @@ -407,7 +416,7 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0, default: LOG_ERROR(HW_GPU, "Unknown color combiner source %d\n", (int)source); UNIMPLEMENTED(); - return {}; + return {0, 0, 0, 0}; } }; @@ -490,6 +499,16 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0, return result.Cast<u8>(); } + case Operation::AddSigned: + { + // TODO(bunnei): Verify that the color conversion from (float) 0.5f to (byte) 128 is correct + auto result = input[0].Cast<int>() + input[1].Cast<int>() - Math::MakeVec<int>(128, 128, 128); + result.r() = MathUtil::Clamp<int>(result.r(), 0, 255); + result.g() = MathUtil::Clamp<int>(result.g(), 0, 255); + result.b() = MathUtil::Clamp<int>(result.b(), 0, 255); + return result.Cast<u8>(); + } + case Operation::Lerp: return ((input[0] * input[2] + input[1] * (Math::MakeVec<u8>(255, 255, 255) - input[2]).Cast<u8>()) / 255).Cast<u8>(); @@ -524,7 +543,7 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0, default: LOG_ERROR(HW_GPU, "Unknown color combiner operation %d\n", (int)op); UNIMPLEMENTED(); - return {}; + return {0, 0, 0}; } }; @@ -578,7 +597,20 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0, }; auto alpha_output = AlphaCombine(tev_stage.alpha_op, alpha_result); - combiner_output = Math::MakeVec(color_output, alpha_output); + combiner_output[0] = std::min((unsigned)255, color_output.r() * tev_stage.GetColorMultiplier()); + combiner_output[1] = std::min((unsigned)255, color_output.g() * tev_stage.GetColorMultiplier()); + combiner_output[2] = std::min((unsigned)255, color_output.b() * tev_stage.GetColorMultiplier()); + combiner_output[3] = std::min((unsigned)255, alpha_output * tev_stage.GetAlphaMultiplier()); + + if (registers.tev_combiner_buffer_input.TevStageUpdatesCombinerBufferColor(tev_stage_index)) { + combiner_buffer.r() = combiner_output.r(); + combiner_buffer.g() = combiner_output.g(); + combiner_buffer.b() = combiner_output.b(); + } + + if (registers.tev_combiner_buffer_input.TevStageUpdatesCombinerBufferAlpha(tev_stage_index)) { + combiner_buffer.a() = combiner_output.a(); + } } if (registers.output_merger.alpha_test.enable) { @@ -624,9 +656,10 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0, // TODO: Does depth indeed only get written even if depth testing is enabled? if (registers.output_merger.depth_test_enable) { - u16 z = (u16)((v0.screenpos[2].ToFloat32() * w0 + - v1.screenpos[2].ToFloat32() * w1 + - v2.screenpos[2].ToFloat32() * w2) * 65535.f / wsum); + unsigned num_bits = Pica::Regs::DepthBitsPerPixel(registers.framebuffer.depth_format); + u32 z = (u32)((v0.screenpos[2].ToFloat32() * w0 + + v1.screenpos[2].ToFloat32() * w1 + + v2.screenpos[2].ToFloat32() * w2) * ((1 << num_bits) - 1) / wsum); u32 ref_z = GetDepth(x >> 4, y >> 4); bool pass = false; |