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ShaderLang: Proof of concept (add support for a lot of things)

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This commit is contained in:
Jérôme Leclercq
2021-03-31 10:21:35 +02:00
parent 2a73005295
commit c1d1838336
37 changed files with 2259 additions and 908 deletions
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34
include/Nazara/Shader/ShaderNodes.hpp
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@@ -12,9 +12,10 @@
#include <Nazara/Math/Vector3.hpp>
#include <Nazara/Math/Vector4.hpp>
#include <Nazara/Shader/Config.hpp>
#include <Nazara/Shader/ShaderAstTypes.hpp>
#include <Nazara/Shader/ShaderConstantValue.hpp>
#include <Nazara/Shader/ShaderEnums.hpp>
#include <Nazara/Shader/Ast/Attribute.hpp>
#include <Nazara/Shader/Ast/ExpressionType.hpp>
#include <array>
#include <memory>
#include <optional>
@@ -25,12 +26,6 @@ namespace Nz::ShaderAst
class AstExpressionVisitor;
class AstStatementVisitor;
struct Attribute
{
AttributeType type;
std::string args;
};
struct NAZARA_SHADER_API Node
{
Node() = default;
@@ -97,7 +92,7 @@ namespace Nz::ShaderAst
NodeType GetType() const override;
void Visit(AstExpressionVisitor& visitor) override;
BasicType targetType;
ExpressionType targetType;
std::array<ExpressionPtr, 4> expressions;
};
@@ -189,6 +184,22 @@ namespace Nz::ShaderAst
StatementPtr statement;
};
struct NAZARA_SHADER_API DeclareExternalStatement : Statement
{
NodeType GetType() const override;
void Visit(AstStatementVisitor& visitor) override;
struct ExternalVar
{
std::vector<Attribute> attributes;
std::string name;
ExpressionType type;
};
std::vector<Attribute> attributes;
std::vector<ExternalVar> externalVars;
};
struct NAZARA_SHADER_API DeclareFunctionStatement : Statement
{
NodeType GetType() const override;
@@ -197,14 +208,14 @@ namespace Nz::ShaderAst
struct Parameter
{
std::string name;
ShaderExpressionType type;
ExpressionType type;
};
std::string name;
std::vector<Attribute> attributes;
std::vector<Parameter> parameters;
std::vector<StatementPtr> statements;
ShaderExpressionType returnType = BasicType::Void;
ExpressionType returnType;
};
struct NAZARA_SHADER_API DeclareStructStatement : Statement
@@ -212,6 +223,7 @@ namespace Nz::ShaderAst
NodeType GetType() const override;
void Visit(AstStatementVisitor& visitor) override;
std::vector<Attribute> attributes;
StructDescription description;
};
@@ -222,7 +234,7 @@ namespace Nz::ShaderAst
std::string varName;
ExpressionPtr initialExpression;
ShaderExpressionType varType;
ExpressionType varType;
};
struct NAZARA_SHADER_API DiscardStatement : Statement