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include/Nazara/Renderer/VertexDeclaration.hpp

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+// Copyright (C) 2012 Jérôme Leclercq
+// This file is part of the "Nazara Engine".
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#ifndef NAZARA_VERTEXDECLARATION_HPP
+#define NAZARA_VERTEXDECLARATION_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <vector>
+
+enum nzElementType
+{
+	nzElementType_Color,
+	nzElementType_Double1,
+	nzElementType_Double2,
+	nzElementType_Double3,
+	nzElementType_Double4,
+	nzElementType_Float1,
+	nzElementType_Float2,
+	nzElementType_Float3,
+	nzElementType_Float4
+};
+
+enum nzElementUsage
+{
+	nzElementType_Diffuse,
+	nzElementType_Normal,
+	nzElementType_Position,
+	nzElementType_Tangent,
+	nzElementType_TexCoord
+};
+
+struct NzVertexElement
+{
+	NzVertexElement() : stream(0), usageIndex(0) {}
+
+	unsigned int offset;
+	unsigned int stream;
+	unsigned int usageIndex;
+	nzElementType type;
+	nzElementUsage usage;
+};
+
+class NAZARA_API NzVertexDeclaration
+{
+	public:
+		struct Element
+		{
+			unsigned int offset;
+			unsigned int usageIndex;
+			nzElementType type;
+			nzElementUsage usage;
+		};
+
+		NzVertexDeclaration() = default;
+		~NzVertexDeclaration() = default;
+
+		bool Create(const NzVertexElement* elements, unsigned int elementCount);
+
+		const Element* GetElement(unsigned int i, unsigned int stream = 0) const;
+		unsigned int GetElementCount(unsigned int stream = 0) const;
+		unsigned int GetStreamCount() const;
+		unsigned int GetStride(unsigned int stream = 0) const;
+
+	private:
+		struct Stream
+		{
+			std::vector<Element> elements;
+			unsigned int stride;
+		};
+
+		std::vector<Stream> m_streams;
+};
+
+#endif // NAZARA_VERTEXDECLARATION_HPP