GLCommandList.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_GLCOMMANDLIST_HPP
#define BERSERK_GLCOMMANDLIST_HPP
 
#include <rhi/RHICommandList.hpp>
#include <rhi/RHIDefs.hpp>
#include <rhi/opengl/GLDefs.hpp>
#include <rhi/opengl/GLGraphicsPipeline.hpp>
#include <rhi/opengl/GLRenderPass.hpp>
#include <rhi/opengl/GLResourceSet.hpp>
#include <rhi/opengl/GLVaoCache.hpp>
 
#include <array>
 
BRK_NS_BEGIN
 
class GLCommandList final : public RHICommandList {
public:
    BRK_API GLCommandList() = default;
    BRK_API ~GLCommandList() override = default;
 
    BRK_API void UpdateVertexBuffer(const Ref<RHIVertexBuffer> &buffer, uint32 byteOffset, uint32 byteSize, const Ref<Data> &data) override;
    BRK_API void UpdateIndexBuffer(const Ref<RHIIndexBuffer> &buffer, uint32 byteOffset, uint32 byteSize, const Ref<Data> &data) override;
    BRK_API void UpdateUniformBuffer(const Ref<RHIUniformBuffer> &buffer, uint32 byteOffset, uint32 byteSize, const Ref<Data> &data) override;
    BRK_API void UpdateTexture2D(const Ref<RHITexture> &texture, uint32 mipLevel, const Rect2u &region, const Ref<Data> &data) override;
    BRK_API void UpdateTexture2DArray(const Ref<RHITexture> &texture, uint32 arrayIndex, uint32 mipLevel, const Rect2u &region, const Ref<Data> &data) override;
    BRK_API void UpdateTextureCube(const Ref<RHITexture> &texture, RHITextureCubemapFace face, uint32 mipLevel, const Rect2u &region, const Ref<Data> &data) override;
    BRK_API void GenerateMipMaps(const Ref<RHITexture> &texture) override;
 
    BRK_API void BeginRenderPass(const Ref<RHIRenderPass> &renderPass, const RHIRenderPassBeginInfo &beginInfo) override;
    BRK_API void BindGraphicsPipeline(const Ref<RHIGraphicsPipeline> &pipeline) override;
    BRK_API void BindVertexBuffers(const std::vector<Ref<RHIVertexBuffer>> &buffers) override;
    BRK_API void BindIndexBuffer(const Ref<RHIIndexBuffer> &buffer, RHIIndexType indexType) override;
    BRK_API void BindResourceSet(const Ref<RHIResourceSet> &resourceSet, uint32 set) override;
    BRK_API void Draw(uint32 verticesCount, uint32 baseVertex, uint32 instancesCount) override;
    BRK_API void DrawIndexed(uint32 indexCount, uint32 baseVertex, uint32 instanceCount) override;
    BRK_API void EndRenderPass() override;
 
    BRK_API void SwapBuffers(const Ref<Window> &window) override;
    BRK_API void Submit() override;
 
private:
    void PipelineCleanUp();
 
private:
    GLResourceBindingState mResourceBindingState;
    GLRenderPassStateVars mStateVars;
    GLVaoCache mVaoCache;
 
    std::array<Ref<GLResourceSet>, RHILimits::MAX_RESOURCE_SETS> mSets;
    Ref<GLGraphicsPipeline> mGraphicsPipeline;
    Ref<GLRenderPass> mRenderPass;
    Ref<GLShader> mShader;
    GLVaoDescriptor mVaoDesc;
    GLuint mCurrentVao = GL_NONE;
    GLenum mIndexType = GL_NONE;
    GLenum mPrimitivesType = GL_NONE;
 
    bool mInRenderPass = false;
    bool mPipelineBound = false;
    bool mNeedUpdateVao = true;
 
    size_t mSubmitCount = 0;
};
 
BRK_NS_END
 
#endif//BERSERK_GLCOMMANDLIST_HPP