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Specialize vertex attributes on dst_sel (#2580)

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* Specialize vertex attributes on dst_sel

* compare vs attrib specs by default, ignore NumberFmt when vertex input dynamic state is supported

* specialize data_format when attribute uses step rates

* use num_components in data fmt instead of fmt itself
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baggins183 2025-03-02 19:17:11 -08:00 • committed by GitHub
parent 951128389d
commit c59d5eef45
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1 changed files with 11 additions and 4 deletions
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15
src/shader_recompiler/specialization.h
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@ -13,7 +13,9 @@
namespace Shader {
struct VsAttribSpecialization {
s32 num_components{};
AmdGpu::NumberClass num_class{};
AmdGpu::CompMapping dst_select{};
auto operator<=>(const VsAttribSpecialization&) const = default;
};
@ -89,12 +91,17 @@ struct StageSpecialization {
Backend::Bindings start_)
: info{&info_}, runtime_info{runtime_info_}, start{start_} {
fetch_shader_data = Gcn::ParseFetchShader(info_);
if (info_.stage == Stage::Vertex && fetch_shader_data &&
!profile_.support_legacy_vertex_attributes) {
if (info_.stage == Stage::Vertex && fetch_shader_data) {
// Specialize shader on VS input number types to follow spec.
ForEachSharp(vs_attribs, fetch_shader_data->attributes,
[](auto& spec, const auto& desc, AmdGpu::Buffer sharp) {
spec.num_class = AmdGpu::GetNumberClass(sharp.GetNumberFmt());
[&profile_](auto& spec, const auto& desc, AmdGpu::Buffer sharp) {
spec.num_components = desc.UsesStepRates()
? AmdGpu::NumComponents(sharp.GetDataFmt())
: 0;
spec.num_class = profile_.support_legacy_vertex_attributes
? AmdGpu::NumberClass{}
: AmdGpu::GetNumberClass(sharp.GetNumberFmt());
spec.dst_select = sharp.DstSelect();
});
}
u32 binding{};