ui/gl/gl_context_cgl.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_GL_GL_CONTEXT_CGL_H_
   6 #define UI_GL_GL_CONTEXT_CGL_H_
   7
   8 #include <OpenGL/CGLTypes.h>
   9
  10 #include "ui/gl/gl_context.h"
  11
  12 namespace gfx {
  13
  14 class GLSurface;
  15
  16 // Encapsulates a CGL OpenGL context.
  17 class GLContextCGL : public GLContextReal {
  18  public:
  19   explicit GLContextCGL(GLShareGroup* share_group);
  20
  21   // Implement GLContext.
  22   bool Initialize(GLSurface* compatible_surface,
  23                   GpuPreference gpu_preference) override;
  24   bool MakeCurrent(GLSurface* surface) override;
  25   void ReleaseCurrent(GLSurface* surface) override;
  26   bool IsCurrent(GLSurface* surface) override;
  27   void* GetHandle() override;
  28   void OnSetSwapInterval(int interval) override;
  29   bool GetTotalGpuMemory(size_t* bytes) override;
  30   void SetSafeToForceGpuSwitch() override;
  31   bool ForceGpuSwitchIfNeeded() override;
  32
  33  protected:
  34   ~GLContextCGL() override;
  35
  36  private:
  37   void Destroy();
  38   GpuPreference GetGpuPreference();
  39
  40   void* context_;
  41   GpuPreference gpu_preference_;
  42
  43   CGLPixelFormatObj discrete_pixelformat_;
  44
  45   int screen_;
  46   int renderer_id_;
  47   bool safe_to_force_gpu_switch_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(GLContextCGL);
  50 };
  51
  52 }  // namespace gfx
  53
  54 #endif  // UI_GL_GL_CONTEXT_CGL_H_