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Initialize native NGG vertex launch state and wave size

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This commit is contained in:
nmzik
2026-09-21 09:49:46 +04:00
parent f9e56ef8a0
commit 476204cd4b
5 changed files with 69 additions and 0 deletions
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src/graphics/host_gpu/renderer/pipeline/pipelineCache.cpp
+1
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@@ -337,6 +337,7 @@ struct PipelineCache::ProgramCache {
if constexpr (std::is_same_v<InputInfo, ShaderVertexInputInfo>) {
options.user_data_base = 8;
options.wave_size = input_info.wave_size;
if (stage == ShaderType::Mesh || stage == ShaderType::TessellationControl) {
options.user_data_base = 0;
options.wave_size = stage == ShaderType::Mesh ? input_info.mesh.wave_size : 64u;
src/graphics/shader/recompiler/frontend/translate/Translate.cpp
+6
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@@ -1225,6 +1225,12 @@ IR::Program TranslateProgram(const Decoder::Program& decoded, const CFG::Graph&
builtin(IR::StageInputKind::PackedAncillary));
}
} else if (options.stage == ShaderType::Vertex) {
// Vulkan owns primitive assembly; each vertex subgroup is one NGG wave.
// Keep its full lane extent: mbcnt(-1) uses lane ordinals, not active counts.
entry_ir.SetScalarReg(static_cast<IR::ScalarReg>(2),
IR::U32(IR::Value(options.wave_size << 12u)));
entry_ir.SetScalarReg(static_cast<IR::ScalarReg>(3),
IR::U32(IR::Value((1u << 28u) | options.wave_size)));
entry_ir.SetVectorReg(static_cast<IR::VectorReg>(5),
builtin(IR::StageInputKind::VertexIndex));
entry_ir.SetVectorReg(static_cast<IR::VectorReg>(8),
src/graphics/shader/shader.cpp
+2
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@@ -651,6 +651,7 @@ void BuildStageStaticKey(const ShaderVertexInputInfo& info, std::vector<uint32_t
key.push_back(static_cast<uint32_t>(info.fetch_attrib_reg));
key.push_back(static_cast<uint32_t>(info.fetch_buffer_reg));
key.push_back(info.resources_num);
key.push_back(info.wave_size);
key.push_back(info.scratch_size_dwords);
key.push_back(info.pa_cl_vs_out_cntl);
key.push_back(static_cast<uint32_t>(info.clip_space.enabled));
@@ -764,6 +765,7 @@ ShaderParams PrepareProgram(const HW::VertexShaderInfo& regs, const HW::Context&
regs.gs_regs.rsrc2.user_sgpr, sh, data, info)) {
EXIT("failed to prepare vertex shader program\n");
}
info.wave_size = (context.GetShaderStages() & 0x00400000u) != 0 ? 32u : 64u;
return params;
}
// NGG user SGPRs start at s8; a separately compiled GS back half also receives
src/graphics/shader/shader.h
+1
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@@ -134,6 +134,7 @@ struct ShaderVertexInputInfo {
int fetch_attrib_reg = 0;
int fetch_buffer_reg = 0;
int buffers_num = 0;
uint32_t wave_size = 64;
uint32_t scratch_size_dwords = 0;
uint32_t pa_cl_vs_out_cntl = 0;
ShaderClipSpaceTransform clip_space;