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Shader/SPIRV: Fix structs being always decorated as block 

They are now only decorated as blocks when used as uniform buffers, which fixes structure nesting
This commit is contained in:
Jérôme Leclercq 2021-12-23 17:36:40 +01:00
parent ed3ee34565
commit a5cc915948
3 changed files with 36 additions and 5 deletions
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4
include/Nazara/Shader/SpirvConstantCache.hpp
View File

@ -105,6 +105,7 @@ namespace Nz
std::string name;
std::vector<Member> members;
std::vector<SpirvDecoration> decorations;
};
using AnyType = std::variant<Bool, Float, Function, Image, Integer, Matrix, Pointer, SampledImage, Structure, Vector, Void>;
@ -166,6 +167,7 @@ namespace Nz
TypePtr BuildFunctionType(const ShaderAst::ExpressionType& retType, const std::vector<ShaderAst::ExpressionType>& parameters) const;
TypePtr BuildPointerType(const ShaderAst::PrimitiveType& type, SpirvStorageClass storageClass) const;
TypePtr BuildPointerType(const ShaderAst::ExpressionType& type, SpirvStorageClass storageClass) const;
TypePtr BuildPointerType(const TypePtr& type, SpirvStorageClass storageClass) const;
TypePtr BuildType(const ShaderAst::ExpressionType& type) const;
TypePtr BuildType(const ShaderAst::IdentifierType& type) const;
TypePtr BuildType(const ShaderAst::MatrixType& type) const;
@ -173,7 +175,7 @@ namespace Nz
TypePtr BuildType(const ShaderAst::PrimitiveType& type) const;
TypePtr BuildType(const ShaderAst::SamplerType& type) const;
TypePtr BuildType(const ShaderAst::StructType& type) const;
TypePtr BuildType(const ShaderAst::StructDescription& structDesc) const;
TypePtr BuildType(const ShaderAst::StructDescription& structDesc, std::vector<SpirvDecoration> decorations = {}) const;
TypePtr BuildType(const ShaderAst::VectorType& type) const;
TypePtr BuildType(const ShaderAst::UniformType& type) const;

17
src/Nazara/Shader/SpirvConstantCache.cpp
View File

@ -87,6 +87,9 @@ namespace Nz
if (lhs.name != rhs.name)
return false;
if (lhs.decorations != rhs.decorations)
return false;
if (!Compare(lhs.members, rhs.members))
return false;
@ -484,6 +487,14 @@ namespace Nz
});
}
auto SpirvConstantCache::BuildPointerType(const TypePtr& type, SpirvStorageClass storageClass) const -> TypePtr
{
return std::make_shared<Type>(Pointer{
type,
storageClass
});
}
auto SpirvConstantCache::BuildPointerType(const ShaderAst::PrimitiveType& type, SpirvStorageClass storageClass) const -> TypePtr
{
return std::make_shared<Type>(Pointer{
@ -583,10 +594,11 @@ namespace Nz
return BuildType(m_internal->structCallback(type.structIndex));
}
auto SpirvConstantCache::BuildType(const ShaderAst::StructDescription& structDesc) const -> TypePtr
auto SpirvConstantCache::BuildType(const ShaderAst::StructDescription& structDesc, std::vector<SpirvDecoration> decorations) const -> TypePtr
{
Structure sType;
sType.name = structDesc.name;
sType.decorations = std::move(decorations);
for (const auto& member : structDesc.members)
{
@ -864,7 +876,8 @@ namespace Nz
debugInfos.Append(SpirvOp::OpName, resultId, structData.name);
annotations.Append(SpirvOp::OpDecorate, resultId, SpirvDecoration::Block);
for (SpirvDecoration decoration : structData.decorations)
annotations.Append(SpirvOp::OpDecorate, resultId, decoration);
FieldOffsets structOffsets(StructLayout::Std140);

20
src/Nazara/Shader/SpirvWriter.cpp
View File

@ -143,8 +143,24 @@ namespace Nz
{
SpirvConstantCache::Variable variable;
variable.debugName = extVar.name;
variable.storageClass = (ShaderAst::IsSamplerType(extVar.type)) ? SpirvStorageClass::UniformConstant : SpirvStorageClass::Uniform;
variable.type = m_constantCache.BuildPointerType(extVar.type, variable.storageClass);
if (ShaderAst::IsSamplerType(extVar.type))
{
variable.storageClass = SpirvStorageClass::UniformConstant;
variable.type = m_constantCache.BuildPointerType(extVar.type, variable.storageClass);
}
else
{
assert(ShaderAst::IsUniformType(extVar.type));
const auto& uniformType = std::get<ShaderAst::UniformType>(extVar.type);
assert(std::holds_alternative<ShaderAst::StructType>(uniformType.containedType));
const auto& structType = std::get<ShaderAst::StructType>(uniformType.containedType);
assert(structType.structIndex < declaredStructs.size());
const auto& type = m_constantCache.BuildType(*declaredStructs[structType.structIndex], { SpirvDecoration::Block });
variable.storageClass = SpirvStorageClass::Uniform;
variable.type = m_constantCache.BuildPointerType(type, variable.storageClass);
}
assert(extVar.bindingIndex.IsResultingValue());