GLBuffer.hpp

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//
//  CeresEngine - A game development framework
//
//  Created by Rogiel Sulzbach.
//  Copyright (c) 2018-2022 Rogiel Sulzbach. All rights reserved.
//
 
#pragma once
 
#include "OpenGL.hpp"
 
#include "CeresEngine/RenderAPI/GPUBuffer.hpp"
 
namespace CeresEngine {
 
    class GLDeviceMemoryManager;
 
    class GLBuffer : public GPUBuffer, public GLDeviceObject<GLBuffer, GPUBuffer> {
    private:
        const GPUBufferDescriptor descriptor;
 
        GLenum mType;
 
        GLuint mBuffer;
 
        GLsizei mSize;
 
        void* mData = nullptr;
 
    public:
        GLBuffer(GLDevicePtr device, const GPUBufferDescriptor& descriptor, GLenum type);
 
        ~GLBuffer() override;
 
    public:
        GPUBufferData map() final;
 
        void unmap() final;
 
        [[nodiscard]] GPUBufferSize getSize() const final;
 
        void flush(GPUBufferSize offset = 0, GPUBufferSize size = whole) final;
 
        void invalidate(GPUBufferSize offset = 0, GPUBufferSize size = whole) final;
 
    public:
        [[nodiscard]] GLuint handle() const { return mBuffer; }
 
        [[nodiscard]] GLenum getType() const { return mType; };
    };
 
    class GLVertexBuffer final : public GLBuffer {
    public:
        GLVertexBuffer(GLDevicePtr device, const GPUBufferDescriptor& descriptor);
    };
 
    class GLIndexBuffer final : public GLBuffer {
    public:
        GLIndexBuffer(GLDevicePtr device, const GPUBufferDescriptor& descriptor);
    };
 
    class GLUniformBuffer final : public GLBuffer {
    public:
        GLUniformBuffer(GLDevicePtr device, const GPUBufferDescriptor& descriptor);
    };
 
    class GLStorageBuffer final : public GLBuffer {
    public:
        GLStorageBuffer(GLDevicePtr device, const GPUBufferDescriptor& descriptor);
    };
 
} // namespace CeresEngine