Texture.h

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#pragma once
#include "Prerequisites.h"
 
class Device;
class DeviceContext;
 
class 
Texture {
public:
  Texture()  = default;
 
  ~Texture() = default;
 
  HRESULT 
  init(Device & device,
       const std::string & textureName,
       ExtensionType extensionType);
 
  HRESULT 
  init(Device & device,
       unsigned int width,
       unsigned int height,
       DXGI_FORMAT Format,
       unsigned int BindFlags,
       unsigned int sampleCount = 1,
       unsigned int qualityLevels = 0);
 
  HRESULT 
  init(Device& device, Texture& textureRef, DXGI_FORMAT format);
 
  void 
  update();
 
  void 
  render(DeviceContext & deviceContext, unsigned int StartSlot, unsigned int NumViews);
 
  void 
  destroy();
 
  HRESULT 
  CreateCubemap(Device& device,
                DeviceContext& deviceContext,
                const std::array<std::string, 6>& facePaths,
                bool generateMips /*= false*/);
 
  ID3D11ShaderResourceView* CreateCubemapFaceSRV(
    ID3D11Device* device,
    ID3D11Texture2D* cubemapTex,
    DXGI_FORMAT format,
    UINT faceIndex,
    UINT mipLevels = 1
  )
  {
    D3D11_SHADER_RESOURCE_VIEW_DESC d{};
    d.Format = format;
    d.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2DARRAY;
    d.Texture2DArray.MostDetailedMip = 0;
    d.Texture2DArray.MipLevels = mipLevels;       // usa 1 para vista simple
    d.Texture2DArray.FirstArraySlice = faceIndex; // cara
    d.Texture2DArray.ArraySize = 1;               // solo esa cara
 
    ID3D11ShaderResourceView* srv = nullptr;
    if (FAILED(device->CreateShaderResourceView(cubemapTex, &d, &srv)))
      return nullptr;
 
    return srv;
  }
 
public:
  ID3D11Texture2D* m_texture = nullptr;
 
  ID3D11ShaderResourceView* m_textureFromImg = nullptr;
 
  std::string m_textureName;
};