gl_surface_egl.h revision 90dce4d38c5ff5333bea97d859d4e484e27edf0c 
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_SURFACE_EGL_H_
6#define UI_GL_GL_SURFACE_EGL_H_
7
8#if defined(OS_WIN)
9#include <windows.h>
10#endif
11
12#include <string>
13
14#include "base/compiler_specific.h"
15#include "base/time.h"
16#include "ui/gfx/native_widget_types.h"
17#include "ui/gfx/size.h"
18#include "ui/gl/gl_bindings.h"
19#include "ui/gl/gl_surface.h"
20#include "ui/gl/vsync_provider.h"
21
22namespace gfx {
23
24// Interface for EGL surface.
25class GL_EXPORT GLSurfaceEGL : public GLSurface {
26 public:
27  GLSurfaceEGL();
28
29  // Implement GLSurface.
30  virtual EGLDisplay GetDisplay() OVERRIDE;
31
32  static bool InitializeOneOff();
33  static EGLDisplay GetHardwareDisplay();
34  static EGLDisplay GetSoftwareDisplay();
35  static EGLNativeDisplayType GetNativeDisplay();
36
37  // These aren't particularly tied to surfaces, but since we already
38  // have the static InitializeOneOff here, it's easiest to reuse its
39  // initialization guards.
40  static const char* GetEGLExtensions();
41  static bool HasEGLExtension(const char* name);
42  static bool IsCreateContextRobustnessSupported();
43
44 protected:
45  virtual ~GLSurfaceEGL();
46
47  bool software_;
48
49 private:
50  DISALLOW_COPY_AND_ASSIGN(GLSurfaceEGL);
51};
52
53// Encapsulates an EGL surface bound to a view.
54class GL_EXPORT NativeViewGLSurfaceEGL : public GLSurfaceEGL {
55 public:
56  NativeViewGLSurfaceEGL(bool software, gfx::AcceleratedWidget window);
57
58  // Implement GLSurface.
59  virtual EGLConfig GetConfig() OVERRIDE;
60  virtual bool Initialize() OVERRIDE;
61  virtual void Destroy() OVERRIDE;
62  virtual bool Resize(const gfx::Size& size) OVERRIDE;
63  virtual bool Recreate() OVERRIDE;
64  virtual bool IsOffscreen() OVERRIDE;
65  virtual bool SwapBuffers() OVERRIDE;
66  virtual gfx::Size GetSize() OVERRIDE;
67  virtual EGLSurface GetHandle() OVERRIDE;
68  virtual std::string GetExtensions() OVERRIDE;
69  virtual bool PostSubBuffer(int x, int y, int width, int height) OVERRIDE;
70  virtual VSyncProvider* GetVSyncProvider() OVERRIDE;
71
72  // Create a NativeViewGLSurfaceEGL with an externally provided VSyncProvider.
73  virtual bool Initialize(VSyncProvider* sync_provider);
74
75 protected:
76  virtual ~NativeViewGLSurfaceEGL();
77  void SetHandle(EGLSurface surface);
78
79 private:
80  gfx::AcceleratedWidget window_;
81  EGLSurface surface_;
82  bool supports_post_sub_buffer_;
83  EGLConfig config_;
84
85  scoped_ptr<VSyncProvider> vsync_provider_;
86
87  DISALLOW_COPY_AND_ASSIGN(NativeViewGLSurfaceEGL);
88};
89
90// Encapsulates a pbuffer EGL surface.
91class GL_EXPORT PbufferGLSurfaceEGL : public GLSurfaceEGL {
92 public:
93  PbufferGLSurfaceEGL(bool software, const gfx::Size& size);
94
95  // Implement GLSurface.
96  virtual EGLConfig GetConfig() OVERRIDE;
97  virtual bool Initialize() OVERRIDE;
98  virtual void Destroy() OVERRIDE;
99  virtual bool IsOffscreen() OVERRIDE;
100  virtual bool SwapBuffers() OVERRIDE;
101  virtual gfx::Size GetSize() OVERRIDE;
102  virtual bool Resize(const gfx::Size& size) OVERRIDE;
103  virtual EGLSurface GetHandle() OVERRIDE;
104  virtual void* GetShareHandle() OVERRIDE;
105
106 protected:
107  virtual ~PbufferGLSurfaceEGL();
108
109 private:
110  gfx::Size size_;
111  EGLSurface surface_;
112
113  DISALLOW_COPY_AND_ASSIGN(PbufferGLSurfaceEGL);
114};
115
116}  // namespace gfx
117
118#endif  // UI_GL_GL_SURFACE_EGL_H_
119