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shader: Better interpolation and disabled attributes support

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This commit is contained in:
ReinUsesLisp 2021-03-27 04:59:58 -03:00 • committed by ameerj
parent 675a82416d
commit dbd882ddeb
9 changed files with 101 additions and 25 deletions
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29
src/shader_recompiler/backend/spirv/emit_context.cpp
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@ -76,6 +76,8 @@ Id GetAttributeType(EmitContext& ctx, AttributeType type) {
return ctx.TypeVector(ctx.TypeInt(32, true), 4);
case AttributeType::UnsignedInt:
return ctx.U32[4];
case AttributeType::Disabled:
break;
}
throw InvalidArgument("Invalid attribute type {}", type);
}
@ -305,15 +307,36 @@ void EmitContext::DefineInputs(const Info& info) {
if (info.loads_front_face) {
front_face = DefineInput(*this, U1, spv::BuiltIn::FrontFacing);
}
for (size_t index = 0; index < info.loads_generics.size(); ++index) {
if (!info.loads_generics[index]) {
for (size_t index = 0; index < info.input_generics.size(); ++index) {
const InputVarying generic{info.input_generics[index]};
if (!generic.used) {
continue;
}
const Id type{GetAttributeType(*this, profile.generic_input_types[index])};
const AttributeType input_type{profile.generic_input_types[index]};
if (input_type == AttributeType::Disabled) {
continue;
}
const Id type{GetAttributeType(*this, input_type)};
const Id id{DefineInput(*this, type)};
Decorate(id, spv::Decoration::Location, static_cast<u32>(index));
Name(id, fmt::format("in_attr{}", index));
input_generics[index] = id;
if (stage != Stage::Fragment) {
continue;
}
switch (generic.interpolation) {
case Interpolation::Smooth:
// Default
// Decorate(id, spv::Decoration::Smooth);
break;
case Interpolation::NoPerspective:
Decorate(id, spv::Decoration::NoPerspective);
break;
case Interpolation::Flat:
Decorate(id, spv::Decoration::Flat);
break;
}
}
}