GLBuffer.hpp

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/* This file is part of Berserk Engine project                                    */
/* https://github.com/EgorOrachyov/Berserk                                        */
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/* Copyright (c) 2018 - 2021 Egor Orachyov                                        */
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#ifndef BERSERK_GLBUFFER_HPP
#define BERSERK_GLBUFFER_HPP
 
#include <rhi/RHIBuffer.hpp>
#include <rhi/opengl/GLDefs.hpp>
 
BRK_NS_BEGIN
 
class GLBuffer {
protected:
    void Initialize(GLenum type, uint32 size, RHIBufferUsage usage);
    void Finalize();
    void Update(uint32 size, uint32 byteOffset, uint32 byteSize, const void *memory);
 
public:
    GLuint GetHandle() const { return mHandle; }
 
private:
    GLuint mHandle = 0;
    GLenum mType = GL_INVALID_ENUM;
};
 
class GLVertexBuffer final : public RHIVertexBuffer, public GLBuffer {
public:
    BRK_API explicit GLVertexBuffer(const RHIBufferDesc &desc);
    BRK_API ~GLVertexBuffer() override;
 
    BRK_API void Initialize();
    BRK_API void Update(uint32 byteOffset, uint32 byteSize, const void *memory) { GLBuffer::Update(GetSize(), byteOffset, byteSize, memory); };
};
 
class GLIndexBuffer final : public RHIIndexBuffer, public GLBuffer {
public:
    BRK_API explicit GLIndexBuffer(const RHIBufferDesc &desc);
    BRK_API ~GLIndexBuffer() override;
 
    BRK_API void Initialize();
    BRK_API void Update(uint32 byteOffset, uint32 byteSize, const void *memory) { GLBuffer::Update(GetSize(), byteOffset, byteSize, memory); };
};
 
class GLUniformBuffer final : public RHIUniformBuffer, public GLBuffer {
public:
    BRK_API explicit GLUniformBuffer(const RHIBufferDesc &desc);
    BRK_API ~GLUniformBuffer() override;
 
    BRK_API void Initialize();
    BRK_API void Update(uint32 byteOffset, uint32 byteSize, const void *memory) { GLBuffer::Update(GetSize(), byteOffset, byteSize, memory); };
    BRK_API void Bind(uint32 location, uint32 offset, uint32 range);
};
 
BRK_NS_END
 
#endif//BERSERK_GLBUFFER_HPP