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spirv: Flush denormals if possible (#1302)

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TheTurtle 2024-10-10 17:47:39 +03:00 • committed by GitHub
parent 56e8ed7833
commit 100036aecf
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GPG key ID: B5690EEEBB952194
14 changed files with 130 additions and 98 deletions
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50
src/shader_recompiler/backend/spirv/emit_spirv.cpp
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@ -206,10 +206,7 @@ Id DefineMain(EmitContext& ctx, const IR::Program& program) {
return main;
}
void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
const auto& info = program.info;
const std::span interfaces(ctx.interfaces.data(), ctx.interfaces.size());
spv::ExecutionModel execution_model{};
void SetupCapabilities(const Info& info, EmitContext& ctx) {
ctx.AddCapability(spv::Capability::Image1D);
ctx.AddCapability(spv::Capability::Sampled1D);
ctx.AddCapability(spv::Capability::ImageQuery);
@ -247,6 +244,19 @@ void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
if (info.uses_group_ballot) {
ctx.AddCapability(spv::Capability::GroupNonUniformBallot);
}
if (info.stage == Stage::Export || info.stage == Stage::Vertex) {
ctx.AddExtension("SPV_KHR_shader_draw_parameters");
ctx.AddCapability(spv::Capability::DrawParameters);
}
if (info.stage == Stage::Geometry) {
ctx.AddCapability(spv::Capability::Geometry);
}
}
void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
const auto& info = program.info;
const std::span interfaces(ctx.interfaces.data(), ctx.interfaces.size());
spv::ExecutionModel execution_model{};
switch (program.info.stage) {
case Stage::Compute: {
const std::array<u32, 3> workgroup_size{ctx.runtime_info.cs_info.workgroup_size};
@ -290,6 +300,24 @@ void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
ctx.AddEntryPoint(execution_model, main, "main", interfaces);
}
void SetupFloatMode(EmitContext& ctx, const Profile& profile, const RuntimeInfo& runtime_info,
Id main_func) {
ctx.AddExtension("SPV_KHR_float_controls");
const auto fp_denorm_mode = runtime_info.fp_denorm_mode32;
if (fp_denorm_mode == AmdGpu::FpDenormMode::InOutFlush) {
if (profile.support_fp32_denorm_flush) {
ctx.AddCapability(spv::Capability::DenormFlushToZero);
ctx.AddExecutionMode(main_func, spv::ExecutionMode::DenormFlushToZero, 32U);
}
} else {
LOG_WARNING(Render_Vulkan, "Unknown FP denorm mode {}", u32(fp_denorm_mode));
}
const auto fp_round_mode = runtime_info.fp_round_mode32;
if (fp_round_mode != AmdGpu::FpRoundMode::NearestEven) {
LOG_WARNING(Render_Vulkan, "Unknown FP rounding mode {}", u32(fp_round_mode));
}
}
void PatchPhiNodes(const IR::Program& program, EmitContext& ctx) {
auto inst{program.blocks.front()->begin()};
size_t block_index{0};
@ -314,18 +342,8 @@ std::vector<u32> EmitSPIRV(const Profile& profile, const RuntimeInfo& runtime_in
EmitContext ctx{profile, runtime_info, program.info, binding};
const Id main{DefineMain(ctx, program)};
DefineEntryPoint(program, ctx, main);
switch (program.info.stage) {
case Stage::Export:
case Stage::Vertex:
ctx.AddExtension("SPV_KHR_shader_draw_parameters");
ctx.AddCapability(spv::Capability::DrawParameters);
break;
case Stage::Geometry:
ctx.AddCapability(spv::Capability::Geometry);
break;
default:
break;
}
SetupCapabilities(program.info, ctx);
SetupFloatMode(ctx, profile, runtime_info, main);
PatchPhiNodes(program, ctx);
binding.user_data += program.info.ud_mask.NumRegs();
return ctx.Assemble();