GHOST_ContextCGL.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.
 *
 * The Original Code is Copyright (C) 2014 Blender Foundation.
 * All rights reserved.
 */
 
#pragma once
 
#include "GHOST_Context.h"
 
@class CAMetalLayer;
@class MTLCommandQueue;
@class MTLRenderPipelineState;
@class MTLTexture;
@class NSOpenGLContext;
@class NSOpenGLView;
@class NSView;
 
class GHOST_ContextCGL : public GHOST_Context {
 public:
  GHOST_ContextCGL(bool stereoVisual,
                   NSView *metalView,
                   CAMetalLayer *metalLayer,
                   NSOpenGLView *openglView);
 
  ~GHOST_ContextCGL();
 
  GHOST_TSuccess swapBuffers();
 
  GHOST_TSuccess activateDrawingContext();
 
  GHOST_TSuccess releaseDrawingContext();
 
  unsigned int getDefaultFramebuffer();
 
  GHOST_TSuccess initializeDrawingContext();
 
  GHOST_TSuccess releaseNativeHandles();
 
  GHOST_TSuccess setSwapInterval(int interval);
 
  GHOST_TSuccess getSwapInterval(int &);
 
  GHOST_TSuccess updateDrawingContext();
 
 private:
  NSView *m_metalView;
  CAMetalLayer *m_metalLayer;
  MTLCommandQueue *m_metalCmdQueue;
  MTLRenderPipelineState *m_metalRenderPipeline;
 
  NSOpenGLView *m_openGLView;
 
  NSOpenGLContext *m_openGLContext;
 
  unsigned int m_defaultFramebuffer;
 
  MTLTexture *m_defaultFramebufferMetalTexture;
 
  bool m_coreProfile;
 
  const bool m_debug;
 
  static NSOpenGLContext *s_sharedOpenGLContext;
  static int s_sharedCount;
 
  /* Metal functions */
  void metalInit();
  void metalFree();
  void metalInitFramebuffer();
  void metalUpdateFramebuffer();
  void metalSwapBuffers();
};