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shader: Implement PrimitiveId

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This commit is contained in:
ReinUsesLisp 2021-04-16 01:55:06 -03:00 committed by ameerj
parent 183855e396
commit b0f1255c8c
5 changed files with 10 additions and 0 deletions
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3
src/shader_recompiler/backend/spirv/emit_context.cpp
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@ -1021,6 +1021,9 @@ void EmitContext::DefineInputs(const Info& info) {
fswzadd_lut_b =
ConstantComposite(F32[4], f32_minus_one, f32_minus_one, f32_one, f32_minus_one);
}
if (info.loads_primitive_id) {
primitive_id = DefineInput(*this, U32[1], false, spv::BuiltIn::PrimitiveId);
}
if (info.loads_position) {
const bool is_fragment{stage != Stage::Fragment};
const spv::BuiltIn built_in{is_fragment ? spv::BuiltIn::Position : spv::BuiltIn::FragCoord};

1
src/shader_recompiler/backend/spirv/emit_context.h
View file

@ -167,6 +167,7 @@ public:
Id clip_distances{};
Id layer{};
Id viewport_index{};
Id primitive_id{};
Id fswzadd_lut_a{};
Id fswzadd_lut_b{};

2
src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
View file

@ -210,6 +210,8 @@ Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, Id vertex) {
return type->needs_cast ? ctx.OpBitcast(ctx.F32[1], value) : value;
}
switch (attr) {
case IR::Attribute::PrimitiveId:
return ctx.OpLoad(ctx.U32[1], ctx.primitive_id);
case IR::Attribute::PositionX:
case IR::Attribute::PositionY:
case IR::Attribute::PositionZ:

3
src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
View file

@ -34,6 +34,9 @@ void GetAttribute(Info& info, IR::Attribute attribute) {
return;
}
switch (attribute) {
case IR::Attribute::PrimitiveId:
info.loads_primitive_id = true;
break;
case IR::Attribute::PositionX:
case IR::Attribute::PositionY:
case IR::Attribute::PositionZ:

1
src/shader_recompiler/shader_info.h
View file

@ -107,6 +107,7 @@ struct Info {
std::array<bool, 30> uses_patches{};
std::array<InputVarying, 32> input_generics{};
bool loads_primitive_id{};
bool loads_position{};
bool loads_instance_id{};
bool loads_vertex_id{};