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Add conditional expression/statement support for shaders

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This commit is contained in:
Jérôme Leclercq
2020-11-19 13:56:54 +01:00
parent ad88561245
commit 960817a1f1
45 changed files with 996 additions and 56 deletions
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7
include/Nazara/Shader/SpirvWriter.hpp
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@@ -23,7 +23,7 @@ namespace Nz
{
class SpirvSection;
class NAZARA_SHADER_API SpirvWriter
class NAZARA_SHADER_API SpirvWriter : public ShaderWriter
{
friend class SpirvAstVisitor;
friend class SpirvExpressionLoad;
@@ -38,7 +38,7 @@ namespace Nz
SpirvWriter(SpirvWriter&&) = delete;
~SpirvWriter() = default;
std::vector<UInt32> Generate(const ShaderAst& shader);
std::vector<UInt32> Generate(const ShaderAst& shader, const States& conditions = {});
void SetEnv(Environment environment);
@@ -66,6 +66,8 @@ namespace Nz
UInt32 GetPointerTypeId(const ShaderExpressionType& type, SpirvStorageClass storageClass) const;
UInt32 GetTypeId(const ShaderExpressionType& type) const;
inline bool IsConditionEnabled(const std::string& condition) const;
UInt32 ReadInputVariable(const std::string& name);
std::optional<UInt32> ReadInputVariable(const std::string& name, OnlyCache);
UInt32 ReadLocalVariable(const std::string& name);
@@ -88,6 +90,7 @@ namespace Nz
{
const ShaderAst* shader = nullptr;
const ShaderAst::Function* currentFunction = nullptr;
const States* states = nullptr;
};
struct ExtVar