DX12RenderTarget.h

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#pragma once
 
#include "Target/DirectX/DX12Common.h"
#include "Target/DirectX/DX12SwapChain.h"
 
#include <DirectXMath.h>
#include <d3d12.h>
 
namespace z8 {
 
class DX12RenderTarget : public DX12Common {
public:
  ComPtr<ID3D12Resource> Buffer[DX12SwapChain::BufferCount];
  ComPtr<ID3D12Resource> MsaaBuffer;
  ComPtr<ID3D12DescriptorHeap> RtvHeap;
  D3D12_CPU_DESCRIPTOR_HANDLE CurrentRtv{};
  D3D12_CPU_DESCRIPTOR_HANDLE MsaaRtv{};
  DXGI_FORMAT Format = DXGI_FORMAT_R8G8B8A8_UNORM;
  int CurrentBufferIndex = 0;
 
private:
  DirectX::XMFLOAT4 ClearColor{};
  unsigned RtvSize = 0;
  unsigned SampleCount = 1;
  unsigned SampleQuality = 0;
 
public:
  explicit DX12RenderTarget(DX12Render *render) : DX12Common(render) {}
 
  void Bind(const D3D12_CPU_DESCRIPTOR_HANDLE *depth = nullptr) const;
  void ClearBuffer() const;
  ID3D12Resource *GetBuffer() const;
  void InitBuffer(DX12SwapChain &swapChain, int width, int height,
                  unsigned sampleCount, unsigned sampleQuality,
                  const DirectX::XMFLOAT4 &clearColor);
  void InitDescriptor();
  bool IsMultisampled() const { return SampleCount > 1; }
  void ResetBuffer();
  void Resolve() const;
  void SelectBuffer(int index);
  void Transition(bool toPresent = true) const;
};
 
} // namespace z8