DX12TextRenderer.h

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#pragma once
 
#include "Target/DirectX/DX12Common.h"
 
#include <d2d1_3.h>
#include <d3d11on12.h>
#include <dwrite.h>
#include <unordered_map>
#include <vector>
 
namespace z8::ui {
class TextNode;
}
 
namespace z8 {
 
class DX12TextRenderer : public DX12Common {
private:
  ComPtr<ID3D11Device> D3D11Device;
  ComPtr<ID3D11DeviceContext> D3D11Context;
  ComPtr<ID3D11On12Device> D3D11On12Device;
  ComPtr<ID2D1Factory3> D2DFactory;
  ComPtr<ID2D1Device2> D2DDevice;
  ComPtr<ID2D1DeviceContext2> D2DContext;
  ComPtr<IDWriteFactory> WriteFactory;
  ComPtr<ID3D11Resource> WrappedBuffers[2];
  ComPtr<ID2D1Bitmap1> Targets[2];
  std::unordered_map<unsigned, ComPtr<IDWriteTextFormat>> Formats;
  bool Initialized = false;
 
public:
  explicit DX12TextRenderer(DX12Render *render);
 
  void Draw(const std::vector<ui::TextNode *> &texts, int bufferIndex,
            float originX, float originY);
  void Init(ID3D12Resource *const buffers[2], DXGI_FORMAT format,
            float dpiScale);
  void PrepareResize();
  void Resize(ID3D12Resource *const buffers[2], DXGI_FORMAT format,
              float dpiScale);
  void Shutdown();
 
private:
  void CreateDevices();
  void CreateTargets(ID3D12Resource *const buffers[2], DXGI_FORMAT format,
                     float dpiScale);
  IDWriteTextFormat *GetFormat(const ui::TextNode &node);
};
 
} // namespace z8