gfx/gl/GLContextCGL.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef GLCONTEXTCGL_H_
   8 #define GLCONTEXTCGL_H_
   9
  10 #include "GLContext.h"
  11
  12 #include "OpenGL/OpenGL.h"
  13
  14 #ifdef __OBJC__
  15 #  include <AppKit/NSOpenGL.h>
  16 #else
  17 typedef void NSOpenGLContext;
  18 #endif
  19
  20 #include <CoreGraphics/CGDisplayConfiguration.h>
  21
  22 #include "mozilla/Atomics.h"
  23
  24 class nsIWidget;
  25
  26 namespace mozilla {
  27 namespace gl {
  28
  29 class GLContextCGL : public GLContext {
  30   friend class GLContextProviderCGL;
  31
  32   NSOpenGLContext* mContext;
  33
  34   mozilla::Atomic<bool> mActiveGPUSwitchMayHaveOccurred;
  35
  36  public:
  37   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextCGL, override)
  38   GLContextCGL(const GLContextDesc&, NSOpenGLContext* context);
  39
  40   ~GLContextCGL();
  41
  42   virtual GLContextType GetContextType() const override {
  43     return GLContextType::CGL;
  44   }
  45
  46   static GLContextCGL* Cast(GLContext* gl) {
  47     MOZ_ASSERT(gl->GetContextType() == GLContextType::CGL);
  48     return static_cast<GLContextCGL*>(gl);
  49   }
  50
  51   NSOpenGLContext* GetNSOpenGLContext() const { return mContext; }
  52   CGLContextObj GetCGLContext() const;
  53
  54   // Can be called on any thread
  55   static void DisplayReconfigurationCallback(CGDirectDisplayID aDisplay,
  56                                              CGDisplayChangeSummaryFlags aFlags,
  57                                              void* aUserInfo);
  58
  59   // Call at the beginning of a frame, on contexts that should stay on the
  60   // active GPU. This method will migrate the context to the new active GPU, if
  61   // the active GPU has changed since the last call.
  62   void MigrateToActiveGPU();
  63
  64   virtual bool MakeCurrentImpl() const override;
  65
  66   virtual bool IsCurrentImpl() const override;
  67
  68   virtual GLenum GetPreferredARGB32Format() const override;
  69
  70   virtual bool SwapBuffers() override;
  71
  72   virtual void GetWSIInfo(nsCString* const out) const override;
  73
  74   Maybe<SymbolLoader> GetSymbolLoader() const override;
  75 };
  76
  77 }  // namespace gl
  78 }  // namespace mozilla
  79
  80 #endif  // GLCONTEXTCGL_H_