Shader: First working version on both Vulkan & OpenGL (ES)

include/Nazara/Shader/Ast/TransformVisitor.inl

@@ -0,0 +1,62 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Shader generator"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Shader/Ast/TransformVisitor.hpp>
+#include <Nazara/Shader/Debug.hpp>
+
+namespace Nz::ShaderAst
+{
+	inline TransformVisitor::TransformVisitor() :
+	m_nextFuncIndex(0),
+	m_nextVarIndex(0)
+	{
+	}
+
+	inline auto TransformVisitor::FindIdentifier(const std::string_view& identifierName) const -> const Identifier*
+	{
+		auto it = std::find_if(m_identifiersInScope.rbegin(), m_identifiersInScope.rend(), [&](const Identifier& identifier) { return identifier.name == identifierName; });
+		if (it == m_identifiersInScope.rend())
+			return nullptr;
+
+		return &*it;
+	}
+
+	inline std::size_t TransformVisitor::RegisterFunction(std::string name)
+	{
+		std::size_t funcIndex = m_nextFuncIndex++;
+		return funcIndex;
+	}
+
+
+	inline std::size_t TransformVisitor::RegisterStruct(std::string name, StructDescription description)
+	{
+		std::size_t structIndex = m_structs.size();
+		m_structs.emplace_back(std::move(description));
+
+		m_identifiersInScope.push_back({
+			std::move(name),
+			Struct {
+				structIndex
+			}
+		});
+
+		return structIndex;
+	}
+
+	inline std::size_t TransformVisitor::RegisterVariable(std::string name)
+	{
+		std::size_t varIndex = m_nextVarIndex++;
+
+		m_identifiersInScope.push_back({
+			std::move(name),
+			Variable {
+				varIndex
+			}
+		});
+
+		return varIndex;
+	}
+}
+
+#include <Nazara/Shader/DebugOff.hpp>