DX12ConstBuf.h

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//
// Created by zhou_zhengming on 2026/5/12.
//
 
#pragma once
 
#include "DX12Common.h"
#include "d3d12.h"
 
namespace z8
{
class DX12ConstBuf: public DX12Common
{
  unsigned SingleBufSize = 0;
  unsigned StepSize = 0;
public:
  ComPtr<ID3D12Resource> Buffer;
  char* ConstBufCPU;
  ComPtr<ID3D12DescriptorHeap> DptHeap;
  unsigned DptSize = 0;
  D3D12_CPU_DESCRIPTOR_HANDLE Dpt;
  unsigned DptCount = 0;
 
  DX12ConstBuf(DX12Render* R) : DX12Common(R){}
  ~DX12ConstBuf() override;
 
  void InitDescriptor();
  void InitBuffer();
  D3D12_GPU_DESCRIPTOR_HANDLE GetGPUDescriptor(int index) const;
  char* GetCPUOffset(unsigned index) const;
  unsigned AlignSize(unsigned size) const;
};
}