glasm: Implement forced early Z

master
ReinUsesLisp 2021-05-21 18:27:37 +07:00 committed by ameerj
parent 6bc54e12a0
commit 84feabac88
2 changed files with 8 additions and 4 deletions

@ -261,7 +261,8 @@ void EmitCode(EmitContext& ctx, const IR::Program& program) {
}
}
void SetupOptions(const IR::Program& program, const Profile& profile, std::string& header) {
void SetupOptions(const IR::Program& program, const Profile& profile,
const RuntimeInfo& runtime_info, std::string& header) {
const Info& info{program.info};
const Stage stage{program.stage};
@ -296,6 +297,9 @@ void SetupOptions(const IR::Program& program, const Profile& profile, std::strin
header += "OPTION NV_viewport_array2;";
}
}
if (stage == Stage::Fragment && runtime_info.force_early_z != 0) {
header += "OPTION NV_early_fragment_tests;";
}
const auto non_zero_frag_colors{info.stores_frag_color | std::views::drop(1)};
if (std::ranges::find(non_zero_frag_colors, true) != non_zero_frag_colors.end()) {
header += "OPTION ARB_draw_buffers;";
@ -380,7 +384,7 @@ std::string EmitGLASM(const Profile& profile, const RuntimeInfo& runtime_info, I
Precolor(ctx, program);
EmitCode(ctx, program);
std::string header{StageHeader(program.stage)};
SetupOptions(program, profile, header);
SetupOptions(program, profile, runtime_info, header);
switch (program.stage) {
case Stage::TessellationControl:
header += fmt::format("VERTICES_OUT {};", program.invocations);

@ -219,8 +219,8 @@ Shader::RuntimeInfo MakeRuntimeInfo(const GraphicsProgramKey& key,
return Shader::TessSpacing::Equal;
}();
break;
case Shader::Stage::Geometry:
case Shader::Stage::Fragment:
info.force_early_z = key.early_z != 0;
break;
default:
break;