diff options
Diffstat (limited to 'src/video_core/rasterizer.cpp')
| -rw-r--r-- | src/video_core/rasterizer.cpp | 120 |
1 files changed, 113 insertions, 7 deletions
diff --git a/src/video_core/rasterizer.cpp b/src/video_core/rasterizer.cpp index 025d4e484..845f1c4b2 100644 --- a/src/video_core/rasterizer.cpp +++ b/src/video_core/rasterizer.cpp @@ -431,6 +431,47 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0, combiner_output = Math::MakeVec(color_output, alpha_output); } + if (registers.output_merger.alpha_test.enable) { + bool pass = false; + + switch (registers.output_merger.alpha_test.func) { + case registers.output_merger.Never: + pass = false; + break; + + case registers.output_merger.Always: + pass = true; + break; + + case registers.output_merger.Equal: + pass = combiner_output.a() == registers.output_merger.alpha_test.ref; + break; + + case registers.output_merger.NotEqual: + pass = combiner_output.a() != registers.output_merger.alpha_test.ref; + break; + + case registers.output_merger.LessThan: + pass = combiner_output.a() < registers.output_merger.alpha_test.ref; + break; + + case registers.output_merger.LessThanOrEqual: + pass = combiner_output.a() <= registers.output_merger.alpha_test.ref; + break; + + case registers.output_merger.GreaterThan: + pass = combiner_output.a() > registers.output_merger.alpha_test.ref; + break; + + case registers.output_merger.GreaterThanOrEqual: + pass = combiner_output.a() >= registers.output_merger.alpha_test.ref; + break; + } + + if (!pass) + continue; + } + // 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 + @@ -441,20 +482,36 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0, bool pass = false; switch (registers.output_merger.depth_test_func) { + case registers.output_merger.Never: + pass = false; + break; + case registers.output_merger.Always: pass = true; break; + case registers.output_merger.Equal: + pass = z == ref_z; + break; + + case registers.output_merger.NotEqual: + pass = z != ref_z; + break; + case registers.output_merger.LessThan: pass = z < ref_z; break; + case registers.output_merger.LessThanOrEqual: + pass = z <= ref_z; + break; + case registers.output_merger.GreaterThan: pass = z > ref_z; break; - default: - LOG_ERROR(HW_GPU, "Unknown depth test function %x", registers.output_merger.depth_test_func.Value()); + case registers.output_merger.GreaterThanOrEqual: + pass = z >= ref_z; break; } @@ -471,18 +528,48 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0, auto params = registers.output_merger.alpha_blending; auto LookupFactorRGB = [&](decltype(params)::BlendFactor factor) -> Math::Vec3<u8> { - switch(factor) { + switch (factor) { case params.Zero: return Math::Vec3<u8>(0, 0, 0); case params.One: return Math::Vec3<u8>(255, 255, 255); + case params.SourceColor: + return combiner_output.rgb(); + + case params.OneMinusSourceColor: + return Math::Vec3<u8>(255 - combiner_output.r(), 255 - combiner_output.g(), 255 - combiner_output.b()); + + case params.DestColor: + return dest.rgb(); + + case params.OneMinusDestColor: + return Math::Vec3<u8>(255 - dest.r(), 255 - dest.g(), 255 - dest.b()); + case params.SourceAlpha: - return Math::MakeVec(combiner_output.a(), combiner_output.a(), combiner_output.a()); + return Math::Vec3<u8>(combiner_output.a(), combiner_output.a(), combiner_output.a()); case params.OneMinusSourceAlpha: - return Math::Vec3<u8>(255-combiner_output.a(), 255-combiner_output.a(), 255-combiner_output.a()); + return Math::Vec3<u8>(255 - combiner_output.a(), 255 - combiner_output.a(), 255 - combiner_output.a()); + + case params.DestAlpha: + return Math::Vec3<u8>(dest.a(), dest.a(), dest.a()); + + case params.OneMinusDestAlpha: + return Math::Vec3<u8>(255 - dest.a(), 255 - dest.a(), 255 - dest.a()); + + case params.ConstantColor: + return Math::Vec3<u8>(registers.output_merger.blend_const.r, registers.output_merger.blend_const.g, registers.output_merger.blend_const.b); + + case params.OneMinusConstantColor: + return Math::Vec3<u8>(255 - registers.output_merger.blend_const.r, 255 - registers.output_merger.blend_const.g, 255 - registers.output_merger.blend_const.b); + + case params.ConstantAlpha: + return Math::Vec3<u8>(registers.output_merger.blend_const.a, registers.output_merger.blend_const.a, registers.output_merger.blend_const.a); + + case params.OneMinusConstantAlpha: + return Math::Vec3<u8>(255 - registers.output_merger.blend_const.a, 255 - registers.output_merger.blend_const.a, 255 - registers.output_merger.blend_const.a); default: LOG_CRITICAL(HW_GPU, "Unknown color blend factor %x", factor); @@ -492,7 +579,7 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0, }; auto LookupFactorA = [&](decltype(params)::BlendFactor factor) -> u8 { - switch(factor) { + switch (factor) { case params.Zero: return 0; @@ -505,6 +592,18 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0, case params.OneMinusSourceAlpha: return 255 - combiner_output.a(); + case params.DestAlpha: + return dest.a(); + + case params.OneMinusDestAlpha: + return 255 - dest.a(); + + case params.ConstantAlpha: + return registers.output_merger.blend_const.a; + + case params.OneMinusConstantAlpha: + return 255 - registers.output_merger.blend_const.a; + default: LOG_CRITICAL(HW_GPU, "Unknown alpha blend factor %x", factor); exit(0); @@ -537,7 +636,14 @@ 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); } } } |