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shader: run merged geometry stages as mesh shaders

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Co-authored-by: Brandon Strong <brandostrong@gmail.com>
Co-authored-by: fxpw <fxpw@outlook.com>
Co-authored-by: shadowbeat070 <70843316+shadowbeat070@users.noreply.github.com>
This commit is contained in:
nmzik
2026-09-05 08:32:23 +04:00
parent 246212789f
commit 3213934d42
39 changed files with 1403 additions and 858 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterInternal.h
+23 -3
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@@ -198,6 +198,7 @@ enum : uint32_t {
OpIMul = 132,
OpFMul = 133,
OpUDiv = 134,
OpUMod = 137,
OpFDiv = 136,
OpIAddCarry = 149,
OpUMulExtended = 151,
@@ -318,6 +319,7 @@ struct OutputBinding {
uint32_t location = 0;
uint32_t variable_id = 0;
std::string debug_name;
uint32_t mesh_data_variable = 0;
};
using ImageDimension = Decoder::ImageDimension;
@@ -345,8 +347,8 @@ const ImageDimensionInfo& ImageDimensionInfoFor(ImageDimension dimension);
struct EmitterState {
EmitterState(const IR::Program& program_, ShaderStageInputInfo input_info_)
: program(program_), input_info(input_info_),
requirements(*program_.spirv_requirements) {}
: builder(program_.stage == ShaderType::Mesh ? 0x00010400u : 0x00010300u),
program(program_), input_info(input_info_), requirements(*program_.spirv_requirements) {}
Builder builder;
const IR::Program& program;
@@ -354,6 +356,8 @@ struct EmitterState {
const IR::SpirvRequirements& requirements;
ShaderType stage = ShaderType::Unknown;
uint32_t wave_size = 64;
uint32_t lane_count = 1;
uint32_t lane_half = 0;
uint32_t storage_buffer_variable = 0;
uint32_t storage_buffer_u64_variable = 0;
std::array<uint32_t, IR::ShaderInfo::MaxBuffers> memory_byte_offsets {};
@@ -366,10 +370,15 @@ struct EmitterState {
uint32_t shader_data_storage_variable = 0;
uint32_t flattened_srt_variable = 0;
uint32_t lds_variable = 0;
uint32_t scratch_variable = 0;
std::array<uint32_t, 2> scratch_variable {};
std::array<uint32_t, IR::ImageBindingCount> image_variables {};
uint32_t sampler_variable = 0;
uint32_t main_func = 0;
uint32_t mesh_guest_func = 0;
uint32_t mesh_allocation = 0;
uint32_t mesh_primitive_data = 0;
uint32_t mesh_primitives = 0;
uint32_t mesh_cull = 0;
uint32_t entry_label = 0;
uint32_t current_label = 0;
uint32_t pixel_valid_mask_variable = 0;
@@ -427,6 +436,10 @@ struct ValueEmitContext {
uint32_t Def(IR::Value value);
uint32_t Arg(const IR::Inst& inst, size_t index);
uint32_t HalfArg(const IR::Inst& inst, size_t index, uint32_t half);
uint32_t Ballot(IR::Value predicate);
uint32_t FirstLane(uint32_t ballot);
uint32_t Shuffle(const IR::Inst& inst, size_t index, uint32_t lane);
uint32_t Result(const IR::Inst& inst);
uint32_t TypeId(IR::Type type) const;
uint32_t Emit(const IR::Inst& inst, uint32_t opcode, IR::Type type,
@@ -448,6 +461,8 @@ struct ValueEmitContext {
std::unordered_map<const IR::Inst*, std::pair<uint32_t, uint32_t>> dispatcher_block_loads;
const IR::Block* current_block = nullptr;
uint32_t scratch_u32_variable = 0;
ValueEmitContext* other_half = nullptr;
uint32_t half = 0;
};
enum class VertexInputScalarKind { Float, Sint, Uint };
@@ -575,6 +590,11 @@ void DecorateDescriptor(EmitterState& state, uint32_t variable, const char* name
void AddDescriptorAnnotationsAndNames(EmitterState& state);
void DefineModule(EmitterState& state);
void DefineMeshOutputs(EmitterState& state);
void EmitMeshEntryPoint(EmitterState& state);
void EmitMeshAllocate(ValueEmitContext& ctx, const IR::Inst& inst);
uint32_t MeshOutputPointer(EmitterState& state, IR::StageOutputKind kind, uint32_t index = 0);
uint32_t MeshPrimitivePointer(EmitterState& state);
uint32_t EmitTrueBool(EmitterState& state);