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https://github.com/yuzu-emu/yuzu.git
synced 2024-08-23 19:27:20 +02:00
commit
9f93367aa0
@ -310,7 +310,7 @@ struct Regs {
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};
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struct {
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enum DepthFunc : u32 {
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enum CompareFunc : u32 {
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Never = 0,
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Always = 1,
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Equal = 2,
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@ -357,11 +357,19 @@ struct Regs {
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BitField<0, 4, Op> op;
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} logic_op;
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INSERT_PADDING_WORDS(0x4);
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INSERT_PADDING_WORDS(0x1);
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union {
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BitField< 0, 1, u32> enable;
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BitField< 4, 3, CompareFunc> func;
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BitField< 8, 8, u32> ref;
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} alpha_test;
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INSERT_PADDING_WORDS(0x2);
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union {
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BitField< 0, 1, u32> depth_test_enable;
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BitField< 4, 3, DepthFunc> depth_test_func;
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BitField< 4, 3, CompareFunc> depth_test_func;
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BitField<12, 1, u32> depth_write_enable;
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};
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@ -431,6 +431,47 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
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combiner_output = Math::MakeVec(color_output, alpha_output);
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}
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if (registers.output_merger.alpha_test.enable) {
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bool pass = false;
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switch (registers.output_merger.alpha_test.func) {
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case registers.output_merger.Never:
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pass = false;
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break;
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case registers.output_merger.Always:
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pass = true;
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break;
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case registers.output_merger.Equal:
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pass = combiner_output.a() == registers.output_merger.alpha_test.ref;
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break;
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case registers.output_merger.NotEqual:
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pass = combiner_output.a() != registers.output_merger.alpha_test.ref;
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break;
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case registers.output_merger.LessThan:
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pass = combiner_output.a() < registers.output_merger.alpha_test.ref;
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break;
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case registers.output_merger.LessThanOrEqual:
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pass = combiner_output.a() <= registers.output_merger.alpha_test.ref;
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break;
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case registers.output_merger.GreaterThan:
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pass = combiner_output.a() > registers.output_merger.alpha_test.ref;
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break;
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case registers.output_merger.GreaterThanOrEqual:
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pass = combiner_output.a() >= registers.output_merger.alpha_test.ref;
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break;
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}
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if (!pass)
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continue;
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}
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// TODO: Does depth indeed only get written even if depth testing is enabled?
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if (registers.output_merger.depth_test_enable) {
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u16 z = (u16)(-(v0.screenpos[2].ToFloat32() * w0 +
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@ -472,10 +513,6 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
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case registers.output_merger.GreaterThanOrEqual:
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pass = z >= ref_z;
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break;
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default:
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LOG_ERROR(HW_GPU, "Unknown depth test function %x", registers.output_merger.depth_test_func.Value());
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break;
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}
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if (!pass)
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