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
12namespace gfx {
13
14class GLSurface;
15
16// Encapsulates a CGL OpenGL context.
17class GLContextCGL : public GLContextReal {
18 public:
19  explicit GLContextCGL(GLShareGroup* share_group);
20
21  // Implement GLContext.
22  virtual bool Initialize(GLSurface* compatible_surface,
23                          GpuPreference gpu_preference) OVERRIDE;
24  virtual void Destroy() OVERRIDE;
25  virtual bool MakeCurrent(GLSurface* surface) OVERRIDE;
26  virtual void ReleaseCurrent(GLSurface* surface) OVERRIDE;
27  virtual bool IsCurrent(GLSurface* surface) OVERRIDE;
28  virtual void* GetHandle() OVERRIDE;
29  virtual void SetSwapInterval(int interval) OVERRIDE;
30  virtual bool GetTotalGpuMemory(size_t* bytes) OVERRIDE;
31  virtual void SetSafeToForceGpuSwitch() OVERRIDE;
32
33 protected:
34  virtual ~GLContextCGL();
35
36 private:
37  GpuPreference GetGpuPreference();
38
39  void* context_;
40  GpuPreference gpu_preference_;
41
42  CGLPixelFormatObj discrete_pixelformat_;
43
44  int screen_;
45  int renderer_id_;
46  bool safe_to_force_gpu_switch_;
47
48  DISALLOW_COPY_AND_ASSIGN(GLContextCGL);
49};
50
51}  // namespace gfx
52
53#endif  // UI_GL_GL_CONTEXT_CGL_H_
54