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#ifndef __OPENCV_CORE_DIRECTX_HPP__
#define __OPENCV_CORE_DIRECTX_HPP__

#include "mat.hpp"
#include "ocl.hpp"

#if !defined(__d3d11_h__)
struct ID3D11Device;
struct ID3D11Texture2D;
#endif

#if !defined(__d3d10_h__)
struct ID3D10Device;
struct ID3D10Texture2D;
#endif

#if !defined(_D3D9_H_)
struct IDirect3DDevice9;
struct IDirect3DDevice9Ex;
struct IDirect3DSurface9;
#endif


namespace cv { namespace directx {

namespace ocl {
using namespace cv::ocl;

//! @addtogroup core_directx
//! @{

// TODO static functions in the Context class
CV_EXPORTS Context& initializeContextFromD3D11Device(ID3D11Device* pD3D11Device);
CV_EXPORTS Context& initializeContextFromD3D10Device(ID3D10Device* pD3D10Device);
CV_EXPORTS Context& initializeContextFromDirect3DDevice9Ex(IDirect3DDevice9Ex* pDirect3DDevice9Ex);
CV_EXPORTS Context& initializeContextFromDirect3DDevice9(IDirect3DDevice9* pDirect3DDevice9);

//! @}

} // namespace cv::directx::ocl

//! @addtogroup core_directx
//! @{

CV_EXPORTS void convertToD3D11Texture2D(InputArray src, ID3D11Texture2D* pD3D11Texture2D);
CV_EXPORTS void convertFromD3D11Texture2D(ID3D11Texture2D* pD3D11Texture2D, OutputArray dst);

CV_EXPORTS void convertToD3D10Texture2D(InputArray src, ID3D10Texture2D* pD3D10Texture2D);
CV_EXPORTS void convertFromD3D10Texture2D(ID3D10Texture2D* pD3D10Texture2D, OutputArray dst);

CV_EXPORTS void convertToDirect3DSurface9(InputArray src, IDirect3DSurface9* pDirect3DSurface9, void* surfaceSharedHandle = NULL);
CV_EXPORTS void convertFromDirect3DSurface9(IDirect3DSurface9* pDirect3DSurface9, OutputArray dst, void* surfaceSharedHandle = NULL);

// Get OpenCV type from DirectX type, return -1 if there is no equivalent
CV_EXPORTS int getTypeFromDXGI_FORMAT(const int iDXGI_FORMAT); // enum DXGI_FORMAT for D3D10/D3D11

// Get OpenCV type from DirectX type, return -1 if there is no equivalent
CV_EXPORTS int getTypeFromD3DFORMAT(const int iD3DFORMAT); // enum D3DTYPE for D3D9

//! @}

} } // namespace cv::directx

#endif // __OPENCV_CORE_DIRECTX_HPP__