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Shader: Add initial support for options (WIP)

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This commit is contained in:
Jérôme Leclercq
2021-04-17 14:43:00 +02:00
parent 7da02c8708
commit 87ce2edc6e
45 changed files with 586 additions and 113 deletions
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16
include/Nazara/Shader/ShaderBuilder.hpp
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@@ -44,12 +44,12 @@ namespace Nz::ShaderBuilder
struct ConditionalExpression
{
inline std::unique_ptr<ShaderAst::ConditionalExpression> operator()(std::string conditionName, ShaderAst::ExpressionPtr truePath, ShaderAst::ExpressionPtr falsePath) const;
inline std::unique_ptr<ShaderAst::ConditionalExpression> operator()(std::size_t optionIndex, ShaderAst::ExpressionPtr truePath, ShaderAst::ExpressionPtr falsePath) const;
};
struct ConditionalStatement
{
inline std::unique_ptr<ShaderAst::ConditionalStatement> operator()(std::string conditionName, ShaderAst::StatementPtr statement) const;
inline std::unique_ptr<ShaderAst::ConditionalStatement> operator()(std::size_t optionIndex, ShaderAst::StatementPtr statement) const;
};
struct Constant
@@ -64,6 +64,11 @@ namespace Nz::ShaderBuilder
inline std::unique_ptr<ShaderAst::DeclareFunctionStatement> operator()(std::optional<ShaderStageType> entryStage, std::string name, std::vector<ShaderAst::DeclareFunctionStatement::Parameter> parameters, std::vector<ShaderAst::StatementPtr> statements, ShaderAst::ExpressionType returnType = ShaderAst::NoType{}) const;
};
struct DeclareOption
{
inline std::unique_ptr<ShaderAst::DeclareOptionStatement> operator()(std::string name, ShaderAst::ExpressionType type, ShaderAst::ExpressionPtr initialValue = nullptr) const;
};
struct DeclareStruct
{
inline std::unique_ptr<ShaderAst::DeclareStructStatement> operator()(ShaderAst::StructDescription description) const;
@@ -106,6 +111,11 @@ namespace Nz::ShaderBuilder
inline std::unique_ptr<ShaderAst::ReturnStatement> operator()(ShaderAst::ExpressionPtr expr = nullptr) const;
};
struct SelectOption
{
inline std::unique_ptr<ShaderAst::SelectOptionExpression> operator()(std::string optionName, ShaderAst::ExpressionPtr truePath, ShaderAst::ExpressionPtr falsePath) const;
};
struct Swizzle
{
inline std::unique_ptr<ShaderAst::SwizzleExpression> operator()(ShaderAst::ExpressionPtr expression, std::vector<ShaderAst::SwizzleComponent> swizzleComponents) const;
@@ -121,6 +131,7 @@ namespace Nz::ShaderBuilder
constexpr Impl::ConditionalStatement ConditionalStatement;
constexpr Impl::Constant Constant;
constexpr Impl::DeclareFunction DeclareFunction;
constexpr Impl::DeclareOption DeclareOption;
constexpr Impl::DeclareStruct DeclareStruct;
constexpr Impl::DeclareVariable DeclareVariable;
constexpr Impl::ExpressionStatement ExpressionStatement;
@@ -130,6 +141,7 @@ namespace Nz::ShaderBuilder
constexpr Impl::Multi MultiStatement;
constexpr Impl::NoParam<ShaderAst::NoOpStatement> NoOp;
constexpr Impl::Return Return;
constexpr Impl::SelectOption SelectOption;
constexpr Impl::Swizzle Swizzle;
}