glasm: Implement forced early Z
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6bc54e12a0
commit
84feabac88
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@ -261,7 +261,8 @@ void EmitCode(EmitContext& ctx, const IR::Program& program) {
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}
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}
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void SetupOptions(const IR::Program& program, const Profile& profile, std::string& header) {
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void SetupOptions(const IR::Program& program, const Profile& profile,
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const RuntimeInfo& runtime_info, std::string& header) {
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const Info& info{program.info};
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const Stage stage{program.stage};
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@ -296,6 +297,9 @@ void SetupOptions(const IR::Program& program, const Profile& profile, std::strin
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header += "OPTION NV_viewport_array2;";
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}
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}
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if (stage == Stage::Fragment && runtime_info.force_early_z != 0) {
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header += "OPTION NV_early_fragment_tests;";
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}
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const auto non_zero_frag_colors{info.stores_frag_color | std::views::drop(1)};
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if (std::ranges::find(non_zero_frag_colors, true) != non_zero_frag_colors.end()) {
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header += "OPTION ARB_draw_buffers;";
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@ -380,7 +384,7 @@ std::string EmitGLASM(const Profile& profile, const RuntimeInfo& runtime_info, I
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Precolor(ctx, program);
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EmitCode(ctx, program);
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std::string header{StageHeader(program.stage)};
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SetupOptions(program, profile, header);
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SetupOptions(program, profile, runtime_info, header);
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switch (program.stage) {
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case Stage::TessellationControl:
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header += fmt::format("VERTICES_OUT {};", program.invocations);
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@ -219,8 +219,8 @@ Shader::RuntimeInfo MakeRuntimeInfo(const GraphicsProgramKey& key,
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return Shader::TessSpacing::Equal;
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}();
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break;
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case Shader::Stage::Geometry:
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case Shader::Stage::Fragment:
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info.force_early_z = key.early_z != 0;
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break;
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default:
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break;
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