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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/gl/gl_context_egl.h" | 5 #include "ui/gl/gl_context_egl.h" |
6 | 6 |
7 #include "base/debug/trace_event.h" | 7 #include "base/debug/trace_event.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
10 #include "build/build_config.h" | 10 #include "build/build_config.h" |
11 #include "third_party/angle/include/EGL/egl.h" | 11 #include "third_party/angle/include/EGL/egl.h" |
| 12 #include "third_party/angle/include/EGL/eglext.h" |
12 #include "ui/gl/egl_util.h" | 13 #include "ui/gl/egl_util.h" |
13 #include "ui/gl/gl_surface.h" | 14 #include "ui/gl/gl_surface_egl.h" |
14 | 15 |
15 // This header must come after the above third-party include, as | 16 // This header must come after the above third-party include, as |
16 // it brings in #defines that cause conflicts. | 17 // it brings in #defines that cause conflicts. |
17 #include "ui/gl/gl_bindings.h" | 18 #include "ui/gl/gl_bindings.h" |
18 | 19 |
19 #if defined(USE_X11) | 20 #if defined(USE_X11) |
20 extern "C" { | 21 extern "C" { |
21 #include <X11/Xlib.h> | 22 #include <X11/Xlib.h> |
22 } | 23 } |
23 #endif | 24 #endif |
24 | 25 |
25 namespace gfx { | 26 namespace gfx { |
26 | 27 |
27 GLContextEGL::GLContextEGL(GLShareGroup* share_group) | 28 GLContextEGL::GLContextEGL(GLShareGroup* share_group) |
28 : GLContext(share_group), | 29 : GLContext(share_group), |
29 context_(NULL), | 30 context_(NULL), |
30 display_(NULL), | 31 display_(NULL), |
31 config_(NULL) { | 32 config_(NULL) { |
32 } | 33 } |
33 | 34 |
34 bool GLContextEGL::Initialize( | 35 bool GLContextEGL::Initialize( |
35 GLSurface* compatible_surface, GpuPreference gpu_preference) { | 36 GLSurface* compatible_surface, GpuPreference gpu_preference) { |
36 DCHECK(compatible_surface); | 37 DCHECK(compatible_surface); |
37 DCHECK(!context_); | 38 DCHECK(!context_); |
38 | 39 |
39 static const EGLint kContextAttributes[] = { | 40 static const EGLint kContextAttributes[] = { |
40 EGL_CONTEXT_CLIENT_VERSION, 2, | 41 EGL_CONTEXT_CLIENT_VERSION, 2, |
41 EGL_NONE | 42 EGL_NONE |
42 }; | 43 }; |
| 44 static const EGLint kContextRobustnessAttributes[] = { |
| 45 EGL_CONTEXT_CLIENT_VERSION, 2, |
| 46 EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT, |
| 47 EGL_LOSE_CONTEXT_ON_RESET_EXT, |
| 48 EGL_NONE |
| 49 }; |
43 | 50 |
44 display_ = compatible_surface->GetDisplay(); | 51 display_ = compatible_surface->GetDisplay(); |
45 config_ = compatible_surface->GetConfig(); | 52 config_ = compatible_surface->GetConfig(); |
46 | 53 |
| 54 const EGLint* context_attributes = NULL; |
| 55 if (GLSurfaceEGL::IsCreateContextRobustnessSupported()) { |
| 56 DVLOG(1) << "EGL_EXT_create_context_robustness supported."; |
| 57 context_attributes = kContextRobustnessAttributes; |
| 58 } else { |
| 59 // At some point we should require the presence of the robustness |
| 60 // extension and remove this code path. |
| 61 DVLOG(1) << "EGL_EXT_create_context_robustness NOT supported."; |
| 62 context_attributes = kContextAttributes; |
| 63 } |
| 64 |
47 context_ = eglCreateContext( | 65 context_ = eglCreateContext( |
48 display_, | 66 display_, |
49 config_, | 67 config_, |
50 share_group() ? share_group()->GetHandle() : NULL, | 68 share_group() ? share_group()->GetHandle() : NULL, |
51 kContextAttributes); | 69 context_attributes); |
| 70 |
52 if (!context_) { | 71 if (!context_) { |
53 LOG(ERROR) << "eglCreateContext failed with error " | 72 LOG(ERROR) << "eglCreateContext failed with error " |
54 << GetLastEGLErrorString(); | 73 << GetLastEGLErrorString(); |
55 Destroy(); | 74 Destroy(); |
56 return false; | 75 return false; |
57 } | 76 } |
58 | 77 |
59 return true; | 78 return true; |
60 } | 79 } |
61 | 80 |
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148 | 167 |
149 std::string GLContextEGL::GetExtensions() { | 168 std::string GLContextEGL::GetExtensions() { |
150 const char* extensions = eglQueryString(display_, | 169 const char* extensions = eglQueryString(display_, |
151 EGL_EXTENSIONS); | 170 EGL_EXTENSIONS); |
152 if (!extensions) | 171 if (!extensions) |
153 return GLContext::GetExtensions(); | 172 return GLContext::GetExtensions(); |
154 | 173 |
155 return GLContext::GetExtensions() + " " + extensions; | 174 return GLContext::GetExtensions() + " " + extensions; |
156 } | 175 } |
157 | 176 |
| 177 bool GLContextEGL::WasAllocatedUsingRobustnessExtension() { |
| 178 return GLSurfaceEGL::IsCreateContextRobustnessSupported(); |
| 179 } |
| 180 |
158 GLContextEGL::~GLContextEGL() { | 181 GLContextEGL::~GLContextEGL() { |
159 Destroy(); | 182 Destroy(); |
160 } | 183 } |
161 | 184 |
162 } // namespace gfx | 185 } // namespace gfx |
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