Class Buffer

SampleFramework12/v1.00/Graphics/GraphicsTypes.h:92–132

};

struct Buffer
{
    ID3D12Resource* Resource = nullptr;
    uint64 CurrBuffer = 0;
    uint8* CPUAddress = 0;
    uint64 GPUAddress = 0;
    uint64 Alignment = 0;
    uint64 Size = 0;
    bool32 Dynamic = false;
    BufferLifetime Lifetime = BufferLifetime::Persistent;

    #if UseAsserts_
        uint64 UploadFrame = uint64(-1);
    #endif

    Buffer();
    ~Buffer();

    void Initialize(uint64 size, uint64 alignment, bool32 dynamic, BufferLifetime lifetime, bool32 allowUAV, const void* initData, D3D12_RESOURCE_STATES initialState);
    void Shutdown();

    MapResult Map();
    MapResult MapAndSetData(const void* data, uint64 dataSize);
    template<typename T> MapResult MapAndSetData(const T& data) { return MapAndSetData(&data, sizeof(T)); }
    void UpdateData(const void* srcData, uint64 srcSize, uint64 dstOffset);

    void Transition(ID3D12GraphicsCommandList* cmdList, D3D12_RESOURCE_STATES before, D3D12_RESOURCE_STATES after) const;
    void MakeReadable(ID3D12GraphicsCommandList* cmdList) const;
    void MakeWritable(ID3D12GraphicsCommandList* cmdList) const;
    void UAVBarrier(ID3D12GraphicsCommandList* cmdList) const;

    bool Initialized() const { return Size > 0; }

    #if UseAsserts_
        bool ReadyForBinding() const;
    #endif

private:

    Buffer(const Buffer& other) { }
};

// For aligning to float4 boundaries
#define Float4Align __declspec(align(16))