GHOST_ContextD3D.h

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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
 
#pragma once
 
#ifndef WIN32
#  error WIN32 only!
#endif  // WIN32
 
#include <D3D11.h>
 
#include "GHOST_Context.h"
 
class GHOST_ContextD3D : public GHOST_Context {
  /* XR code needs low level graphics data to send to OpenXR. */
  friend class GHOST_XrGraphicsBindingD3D;
 
 public:
  GHOST_ContextD3D(bool stereoVisual, HWND hWnd);
  ~GHOST_ContextD3D();
 
  GHOST_TSuccess swapBuffers();
 
  GHOST_TSuccess activateDrawingContext();
 
  GHOST_TSuccess releaseDrawingContext();
 
  GHOST_TSuccess initializeDrawingContext();
 
  GHOST_TSuccess updateDrawingContext()
  {
    return GHOST_kFailure;
  }
 
  GHOST_TSuccess releaseNativeHandles();
 
  GHOST_TSuccess setSwapInterval(int /*interval*/)
  {
    return GHOST_kFailure;
  }
 
  GHOST_TSuccess getSwapInterval(int &)
  {
    return GHOST_kFailure;
  }
 
  unsigned int getDefaultFramebuffer()
  {
    return 0;
  }
 
  class GHOST_SharedOpenGLResource *createSharedOpenGLResource(
      unsigned int width, unsigned int height, ID3D11RenderTargetView *render_target);
  class GHOST_SharedOpenGLResource *createSharedOpenGLResource(unsigned int width,
                                                               unsigned int height);
  void disposeSharedOpenGLResource(class GHOST_SharedOpenGLResource *shared_res);
  GHOST_TSuccess blitFromOpenGLContext(class GHOST_SharedOpenGLResource *shared_res,
                                       unsigned int width,
                                       unsigned int height);
  ID3D11Texture2D *getSharedTexture2D(class GHOST_SharedOpenGLResource *shared_res);
 
  bool isUpsideDown() const
  {
    return true;
  }
 
 private:
  GHOST_TSuccess setupD3DLib();
 
  static HMODULE s_d3d_lib;
  static PFN_D3D11_CREATE_DEVICE s_D3D11CreateDeviceFn;
 
  HWND m_hWnd;
 
  ID3D11Device *m_device;
  ID3D11DeviceContext *m_device_ctx;
};