74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
// Copyright (C) 2015 Jérôme Leclercq
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// This file is part of the "Nazara Engine - OpenGL Renderer"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef NAZARA_OPENGLRENDERER_OPENGLVAOCACHE_HPP
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#define NAZARA_OPENGLRENDERER_OPENGLVAOCACHE_HPP
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#include <Nazara/Prerequisites.hpp>
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#include <Nazara/OpenGLRenderer/Config.hpp>
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#include <Nazara/OpenGLRenderer/Wrapper/CoreFunctions.hpp>
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#include <array>
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#include <memory>
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#include <optional>
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#include <unordered_map>
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namespace Nz::GL
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{
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struct OpenGLVaoSetup
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{
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struct Attribs
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{
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GLuint vertexBuffer;
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GLint size;
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GLenum type;
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GLboolean normalized;
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GLsizei stride;
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const void* pointer;
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};
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GLuint indexBuffer = 0;
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std::array<std::optional<Attribs>, 16> vertexAttribs;
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inline friend bool operator==(const OpenGLVaoSetup& lhs, const OpenGLVaoSetup& rhs);
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};
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struct OpenGLVaoSetupHasher
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{
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inline std::size_t operator()(const OpenGLVaoSetup& setup) const;
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};
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class Context;
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class VertexArray;
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class NAZARA_OPENGLRENDERER_API OpenGLVaoCache
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{
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friend Context;
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public:
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OpenGLVaoCache(Context& owner);
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OpenGLVaoCache(const OpenGLVaoCache&) = delete;
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OpenGLVaoCache(OpenGLVaoCache&&) = delete;
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~OpenGLVaoCache();
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void Clear();
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const VertexArray& Get(const OpenGLVaoSetup& setup) const;
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OpenGLVaoCache& operator=(const OpenGLVaoCache&) = delete;
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OpenGLVaoCache& operator=(OpenGLVaoCache&&) = delete;
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private:
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void NotifyBufferDestruction(GLuint buffer);
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mutable std::unordered_map<OpenGLVaoSetup, std::unique_ptr<VertexArray>, OpenGLVaoSetupHasher> m_vertexArrays;
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Context& m_context;
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};
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}
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#include <Nazara/OpenGLRenderer/OpenGLVaoCache.inl>
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#endif
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