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shader_recompiler: Replace buffer pulling with attribute divisor for instance step rates (#3238)

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* shader_recompiler: Replace buffer pulling with attribute divisor for instance step rates

* flatten_extended_userdata: Remove special step rate buffer handling

* Review comments

* spirv_emit_context: Name all instance rate attribs properly

* spirv: Merge ReadConstBuffer again

template function only has 1 user now

* attribute: Add missing attributes

* translate: Reimplement step rate instance id

* Resolve validation warnings

* shader_recompiler: Separate vertex inputs from LS stage, cleanup tess
This commit is contained in:
TheTurtle
2025-07-14 00:32:02 +03:00
committed by GitHub
parent b403e1be33
commit 399a725343
22 changed files with 208 additions and 274 deletions
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74
src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
View File

@@ -377,35 +377,13 @@ void EmitContext::DefineInputs() {
ASSERT(attrib.semantic < IR::NumParams);
const auto sharp = attrib.GetSharp(info);
const Id type{GetAttributeType(*this, sharp.GetNumberFmt())[4]};
if (attrib.UsesStepRates()) {
const u32 rate_idx =
attrib.GetStepRate() == Gcn::VertexAttribute::InstanceIdType::OverStepRate0 ? 0
: 1;
const u32 num_components = AmdGpu::NumComponents(sharp.GetDataFmt());
const auto buffer =
std::ranges::find_if(info.buffers, [&attrib](const auto& buffer) {
return buffer.instance_attrib == attrib.semantic;
});
// Note that we pass index rather than Id
input_params[attrib.semantic] = SpirvAttribute{
.id = {rate_idx},
.pointer_type = input_u32,
.component_type = U32[1],
.num_components = std::min<u16>(attrib.num_elements, num_components),
.is_integer = true,
.is_loaded = false,
.buffer_handle = int(buffer - info.buffers.begin()),
};
Id id{DefineInput(type, attrib.semantic)};
if (attrib.GetStepRate() != Gcn::VertexAttribute::InstanceIdType::None) {
Name(id, fmt::format("vs_instance_attr{}", attrib.semantic));
} else {
Id id{DefineInput(type, attrib.semantic)};
if (attrib.GetStepRate() == Gcn::VertexAttribute::InstanceIdType::Plain) {
Name(id, fmt::format("vs_instance_attr{}", attrib.semantic));
} else {
Name(id, fmt::format("vs_in_attr{}", attrib.semantic));
}
input_params[attrib.semantic] =
GetAttributeInfo(sharp.GetNumberFmt(), id, 4, false);
Name(id, fmt::format("vs_in_attr{}", attrib.semantic));
}
input_params[attrib.semantic] = GetAttributeInfo(sharp.GetNumberFmt(), id, 4, false);
}
break;
}
@@ -573,7 +551,7 @@ void EmitContext::DefineOutputs() {
cull_distances =
DefineVariable(type, spv::BuiltIn::CullDistance, spv::StorageClass::Output);
}
if (stage == Shader::Stage::Local && runtime_info.ls_info.links_with_tcs) {
if (stage == Stage::Local) {
const u32 num_attrs = Common::AlignUp(runtime_info.ls_info.ls_stride, 16) >> 4;
if (num_attrs > 0) {
const Id type{TypeArray(F32[4], ConstU32(num_attrs))};
@@ -700,12 +678,10 @@ void EmitContext::DefineOutputs() {
void EmitContext::DefinePushDataBlock() {
// Create push constants block for instance steps rates
const Id struct_type{Name(TypeStruct(U32[1], U32[1], F32[1], F32[1], F32[1], F32[1], U32[4],
U32[4], U32[4], U32[4], U32[4], U32[4], U32[2]),
const Id struct_type{Name(TypeStruct(F32[1], F32[1], F32[1], F32[1], U32[4], U32[4], U32[4],
U32[4], U32[4], U32[4], U32[2]),
"AuxData")};
Decorate(struct_type, spv::Decoration::Block);
MemberName(struct_type, PushData::Step0Index, "sr0");
MemberName(struct_type, PushData::Step1Index, "sr1");
MemberName(struct_type, PushData::XOffsetIndex, "xoffset");
MemberName(struct_type, PushData::YOffsetIndex, "yoffset");
MemberName(struct_type, PushData::XScaleIndex, "xscale");
@@ -717,19 +693,17 @@ void EmitContext::DefinePushDataBlock() {
MemberName(struct_type, PushData::BufOffsetIndex + 0, "buf_offsets0");
MemberName(struct_type, PushData::BufOffsetIndex + 1, "buf_offsets1");
MemberName(struct_type, PushData::BufOffsetIndex + 2, "buf_offsets2");
MemberDecorate(struct_type, PushData::Step0Index, spv::Decoration::Offset, 0U);
MemberDecorate(struct_type, PushData::Step1Index, spv::Decoration::Offset, 4U);
MemberDecorate(struct_type, PushData::XOffsetIndex, spv::Decoration::Offset, 8U);
MemberDecorate(struct_type, PushData::YOffsetIndex, spv::Decoration::Offset, 12U);
MemberDecorate(struct_type, PushData::XScaleIndex, spv::Decoration::Offset, 16U);
MemberDecorate(struct_type, PushData::YScaleIndex, spv::Decoration::Offset, 20U);
MemberDecorate(struct_type, PushData::UdRegsIndex + 0, spv::Decoration::Offset, 24U);
MemberDecorate(struct_type, PushData::UdRegsIndex + 1, spv::Decoration::Offset, 40U);
MemberDecorate(struct_type, PushData::UdRegsIndex + 2, spv::Decoration::Offset, 56U);
MemberDecorate(struct_type, PushData::UdRegsIndex + 3, spv::Decoration::Offset, 72U);
MemberDecorate(struct_type, PushData::BufOffsetIndex + 0, spv::Decoration::Offset, 88U);
MemberDecorate(struct_type, PushData::BufOffsetIndex + 1, spv::Decoration::Offset, 104U);
MemberDecorate(struct_type, PushData::BufOffsetIndex + 2, spv::Decoration::Offset, 120U);
MemberDecorate(struct_type, PushData::XOffsetIndex, spv::Decoration::Offset, 0U);
MemberDecorate(struct_type, PushData::YOffsetIndex, spv::Decoration::Offset, 4U);
MemberDecorate(struct_type, PushData::XScaleIndex, spv::Decoration::Offset, 8U);
MemberDecorate(struct_type, PushData::YScaleIndex, spv::Decoration::Offset, 12U);
MemberDecorate(struct_type, PushData::UdRegsIndex + 0, spv::Decoration::Offset, 16U);
MemberDecorate(struct_type, PushData::UdRegsIndex + 1, spv::Decoration::Offset, 32U);
MemberDecorate(struct_type, PushData::UdRegsIndex + 2, spv::Decoration::Offset, 48U);
MemberDecorate(struct_type, PushData::UdRegsIndex + 3, spv::Decoration::Offset, 64U);
MemberDecorate(struct_type, PushData::BufOffsetIndex + 0, spv::Decoration::Offset, 80U);
MemberDecorate(struct_type, PushData::BufOffsetIndex + 1, spv::Decoration::Offset, 96U);
MemberDecorate(struct_type, PushData::BufOffsetIndex + 2, spv::Decoration::Offset, 112U);
push_data_block = DefineVar(struct_type, spv::StorageClass::PushConstant);
Name(push_data_block, "push_data");
interfaces.push_back(push_data_block);
@@ -763,19 +737,19 @@ EmitContext::BufferSpv EmitContext::DefineBuffer(bool is_storage, bool is_writte
Decorate(id, spv::Decoration::NonWritable);
}
switch (buffer_type) {
case Shader::BufferType::GdsBuffer:
case BufferType::GdsBuffer:
Name(id, "gds_buffer");
break;
case Shader::BufferType::Flatbuf:
case BufferType::Flatbuf:
Name(id, "srt_flatbuf");
break;
case Shader::BufferType::BdaPagetable:
case BufferType::BdaPagetable:
Name(id, "bda_pagetable");
break;
case Shader::BufferType::FaultBuffer:
case BufferType::FaultBuffer:
Name(id, "fault_buffer");
break;
case Shader::BufferType::SharedMemory:
case BufferType::SharedMemory:
Name(id, "ssbo_shmem");
break;
default: