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shader: Implement NDC [-1, 1], attribute types and default varying initialization

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This commit is contained in:
ReinUsesLisp 2021-03-24 01:33:45 -03:00 • committed by ameerj
parent 1d2db78398
commit 68a9505d8a
15 changed files with 186 additions and 43 deletions
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35
src/shader_recompiler/backend/spirv/emit_context.cpp
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@ -67,6 +67,18 @@ Id DefineInput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin =
Id DefineOutput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin = std::nullopt) {
return DefineVariable(ctx, type, builtin, spv::StorageClass::Output);
}
Id GetAttributeType(EmitContext& ctx, AttributeType type) {
switch (type) {
case AttributeType::Float:
return ctx.F32[4];
case AttributeType::SignedInt:
return ctx.TypeVector(ctx.TypeInt(32, true), 4);
case AttributeType::UnsignedInt:
return ctx.U32[4];
}
throw InvalidArgument("Invalid attribute type {}", type);
}
} // Anonymous namespace
void VectorTypes::Define(Sirit::Module& sirit_ctx, Id base_type, std::string_view name) {
@ -82,11 +94,11 @@ void VectorTypes::Define(Sirit::Module& sirit_ctx, Id base_type, std::string_vie
}
EmitContext::EmitContext(const Profile& profile_, IR::Program& program, u32& binding)
: Sirit::Module(0x00010000), profile{profile_} {
: Sirit::Module(0x00010000), profile{profile_}, stage{program.stage} {
AddCapability(spv::Capability::Shader);
DefineCommonTypes(program.info);
DefineCommonConstants();
DefineInterfaces(program.info, program.stage);
DefineInterfaces(program.info);
DefineConstantBuffers(program.info, binding);
DefineStorageBuffers(program.info, binding);
DefineTextures(program.info, binding);
@ -130,6 +142,9 @@ void EmitContext::DefineCommonTypes(const Info& info) {
U32.Define(*this, TypeInt(32, false), "u32");
input_f32 = Name(TypePointer(spv::StorageClass::Input, F32[1]), "input_f32");
input_u32 = Name(TypePointer(spv::StorageClass::Input, U32[1]), "input_u32");
input_s32 = Name(TypePointer(spv::StorageClass::Input, TypeInt(32, true)), "input_s32");
output_f32 = Name(TypePointer(spv::StorageClass::Output, F32[1]), "output_f32");
if (info.uses_int8) {
@ -162,9 +177,9 @@ void EmitContext::DefineCommonConstants() {
u32_zero_value = Constant(U32[1], 0U);
}
void EmitContext::DefineInterfaces(const Info& info, Stage stage) {
DefineInputs(info, stage);
DefineOutputs(info, stage);
void EmitContext::DefineInterfaces(const Info& info) {
DefineInputs(info);
DefineOutputs(info);
}
void EmitContext::DefineConstantBuffers(const Info& info, u32& binding) {
@ -252,7 +267,7 @@ void EmitContext::DefineLabels(IR::Program& program) {
}
}
void EmitContext::DefineInputs(const Info& info, Stage stage) {
void EmitContext::DefineInputs(const Info& info) {
if (info.uses_workgroup_id) {
workgroup_id = DefineInput(*this, U32[3], spv::BuiltIn::WorkgroupId);
}
@ -288,8 +303,8 @@ void EmitContext::DefineInputs(const Info& info, Stage stage) {
if (!info.loads_generics[index]) {
continue;
}
// FIXME: Declare size from input
const Id id{DefineInput(*this, F32[4])};
const Id type{GetAttributeType(*this, profile.generic_input_types[index])};
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;
@ -323,8 +338,8 @@ void EmitContext::DefineConstantBuffers(const Info& info, Id UniformDefinitions:
}
}
void EmitContext::DefineOutputs(const Info& info, Stage stage) {
if (info.stores_position) {
void EmitContext::DefineOutputs(const Info& info) {
if (info.stores_position || stage == Stage::VertexB) {
output_position = DefineOutput(*this, F32[4], spv::BuiltIn::Position);
}
for (size_t i = 0; i < info.stores_generics.size(); ++i) {