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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_surface.h" | 5 #include "ui/gl/gl_surface.h" |
6 | 6 |
| 7 #include <OpenGL/CGLRenderers.h> |
| 8 |
| 9 #include "base/basictypes.h" |
7 #include "base/debug/trace_event.h" | 10 #include "base/debug/trace_event.h" |
8 #include "base/logging.h" | 11 #include "base/logging.h" |
| 12 #include "base/mac/mac_util.h" |
9 #include "base/memory/scoped_ptr.h" | 13 #include "base/memory/scoped_ptr.h" |
10 #include "third_party/mesa/src/include/GL/osmesa.h" | 14 #include "third_party/mesa/src/include/GL/osmesa.h" |
11 #include "ui/gl/gl_bindings.h" | 15 #include "ui/gl/gl_bindings.h" |
| 16 #include "ui/gl/gl_context.h" |
12 #include "ui/gl/gl_implementation.h" | 17 #include "ui/gl/gl_implementation.h" |
13 #include "ui/gl/gl_surface_cgl.h" | |
14 #include "ui/gl/gl_surface_osmesa.h" | 18 #include "ui/gl/gl_surface_osmesa.h" |
15 #include "ui/gl/gl_surface_stub.h" | 19 #include "ui/gl/gl_surface_stub.h" |
| 20 #include "ui/gl/gpu_switching_manager.h" |
16 | 21 |
17 namespace gfx { | 22 namespace gfx { |
| 23 namespace { |
| 24 |
| 25 // A "no-op" surface. It is not required that a CGLContextObj have an |
| 26 // associated drawable (pbuffer or fullscreen context) in order to be |
| 27 // made current. Everywhere this surface type is used, we allocate an |
| 28 // FBO at the user level as the drawable of the associated context. |
| 29 class GL_EXPORT NoOpGLSurface : public GLSurface { |
| 30 public: |
| 31 explicit NoOpGLSurface(const gfx::Size& size) : size_(size) {} |
| 32 |
| 33 // Implement GLSurface. |
| 34 virtual bool Initialize() OVERRIDE { return true; } |
| 35 virtual void Destroy() OVERRIDE {} |
| 36 virtual bool IsOffscreen() OVERRIDE { return true; } |
| 37 virtual bool SwapBuffers() OVERRIDE { |
| 38 NOTREACHED() << "Cannot call SwapBuffers on a NoOpGLSurface."; |
| 39 return false; |
| 40 } |
| 41 virtual gfx::Size GetSize() OVERRIDE { return size_; } |
| 42 virtual void* GetHandle() OVERRIDE { return NULL; } |
| 43 virtual void* GetDisplay() OVERRIDE { return NULL; } |
| 44 |
| 45 protected: |
| 46 virtual ~NoOpGLSurface() {} |
| 47 |
| 48 private: |
| 49 gfx::Size size_; |
| 50 |
| 51 DISALLOW_COPY_AND_ASSIGN(NoOpGLSurface); |
| 52 }; |
| 53 |
| 54 // static |
| 55 bool InitializeOneOffForSandbox() { |
| 56 static bool initialized = false; |
| 57 if (initialized) |
| 58 return true; |
| 59 |
| 60 // This is called from the sandbox warmup code on Mac OS X. |
| 61 // GPU-related stuff is very slow without this, probably because |
| 62 // the sandbox prevents loading graphics drivers or some such. |
| 63 std::vector<CGLPixelFormatAttribute> attribs; |
| 64 if (ui::GpuSwitchingManager::GetInstance()->SupportsDualGpus()) { |
| 65 // Avoid switching to the discrete GPU just for this pixel |
| 66 // format selection. |
| 67 attribs.push_back(kCGLPFAAllowOfflineRenderers); |
| 68 } |
| 69 if (GetGLImplementation() == kGLImplementationAppleGL) { |
| 70 attribs.push_back(kCGLPFARendererID); |
| 71 attribs.push_back(static_cast<CGLPixelFormatAttribute>( |
| 72 kCGLRendererGenericFloatID)); |
| 73 } |
| 74 attribs.push_back(static_cast<CGLPixelFormatAttribute>(0)); |
| 75 |
| 76 CGLPixelFormatObj format; |
| 77 GLint num_pixel_formats; |
| 78 if (CGLChoosePixelFormat(&attribs.front(), |
| 79 &format, |
| 80 &num_pixel_formats) != kCGLNoError) { |
| 81 LOG(ERROR) << "Error choosing pixel format."; |
| 82 return false; |
| 83 } |
| 84 if (!format) { |
| 85 LOG(ERROR) << "format == 0."; |
| 86 return false; |
| 87 } |
| 88 CGLReleasePixelFormat(format); |
| 89 DCHECK_NE(num_pixel_formats, 0); |
| 90 initialized = true; |
| 91 return true; |
| 92 } |
| 93 |
| 94 } // namespace |
18 | 95 |
19 bool GLSurface::InitializeOneOffInternal() { | 96 bool GLSurface::InitializeOneOffInternal() { |
20 switch (GetGLImplementation()) { | 97 switch (GetGLImplementation()) { |
21 case kGLImplementationDesktopGL: | 98 case kGLImplementationDesktopGL: |
22 case kGLImplementationAppleGL: | 99 case kGLImplementationAppleGL: |
23 if (!GLSurfaceCGL::InitializeOneOff()) { | 100 if (!InitializeOneOffForSandbox()) { |
24 LOG(ERROR) << "GLSurfaceCGL::InitializeOneOff failed."; | 101 LOG(ERROR) << "GLSurfaceCGL::InitializeOneOff failed."; |
25 return false; | 102 return false; |
26 } | 103 } |
27 break; | 104 break; |
28 default: | 105 default: |
29 break; | 106 break; |
30 } | 107 } |
31 return true; | 108 return true; |
32 } | 109 } |
33 | 110 |
(...skipping 21 matching lines...) Expand all Loading... |
55 case kGLImplementationOSMesaGL: { | 132 case kGLImplementationOSMesaGL: { |
56 scoped_refptr<GLSurface> surface(new GLSurfaceOSMesa(OSMESA_RGBA, | 133 scoped_refptr<GLSurface> surface(new GLSurfaceOSMesa(OSMESA_RGBA, |
57 size)); | 134 size)); |
58 if (!surface->Initialize()) | 135 if (!surface->Initialize()) |
59 return NULL; | 136 return NULL; |
60 | 137 |
61 return surface; | 138 return surface; |
62 } | 139 } |
63 case kGLImplementationDesktopGL: | 140 case kGLImplementationDesktopGL: |
64 case kGLImplementationAppleGL: { | 141 case kGLImplementationAppleGL: { |
65 scoped_refptr<GLSurface> surface(new NoOpGLSurfaceCGL(size)); | 142 scoped_refptr<GLSurface> surface(new NoOpGLSurface(size)); |
66 if (!surface->Initialize()) | 143 if (!surface->Initialize()) |
67 return NULL; | 144 return NULL; |
68 | 145 |
69 return surface; | 146 return surface; |
70 } | 147 } |
71 case kGLImplementationMockGL: | 148 case kGLImplementationMockGL: |
72 return new GLSurfaceStub; | 149 return new GLSurfaceStub; |
73 default: | 150 default: |
74 NOTREACHED(); | 151 NOTREACHED(); |
75 return NULL; | 152 return NULL; |
76 } | 153 } |
77 } | 154 } |
78 | 155 |
79 } // namespace gfx | 156 } // namespace gfx |
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