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| 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 #include "ui/gl/gl_surface.h" | |
| 6 | |
| 7 #include <OpenGL/CGLRenderers.h> | |
| 8 | |
| 9 #include "base/basictypes.h" | |
| 10 #include "base/logging.h" | |
| 11 #include "base/memory/scoped_ptr.h" | |
| 12 #include "base/trace_event/trace_event.h" | |
| 13 #include "ui/gl/gl_bindings.h" | |
| 14 #include "ui/gl/gl_context.h" | |
| 15 #include "ui/gl/gl_implementation.h" | |
| 16 #include "ui/gl/gl_surface_osmesa.h" | |
| 17 #include "ui/gl/gl_surface_stub.h" | |
| 18 #include "ui/gl/gpu_switching_manager.h" | |
| 19 | |
| 20 namespace gfx { | |
| 21 namespace { | |
| 22 | |
| 23 // A "no-op" surface. It is not required that a CGLContextObj have an | |
| 24 // associated drawable (pbuffer or fullscreen context) in order to be | |
| 25 // made current. Everywhere this surface type is used, we allocate an | |
| 26 // FBO at the user level as the drawable of the associated context. | |
| 27 class GL_EXPORT NoOpGLSurface : public GLSurface { | |
| 28 public: | |
| 29 explicit NoOpGLSurface(const gfx::Size& size) : size_(size) {} | |
| 30 | |
| 31 // Implement GLSurface. | |
| 32 bool Initialize() override { return true; } | |
| 33 void Destroy() override {} | |
| 34 bool IsOffscreen() override { return true; } | |
| 35 bool SwapBuffers() override { | |
| 36 NOTREACHED() << "Cannot call SwapBuffers on a NoOpGLSurface."; | |
| 37 return false; | |
| 38 } | |
| 39 gfx::Size GetSize() override { return size_; } | |
| 40 void* GetHandle() override { return NULL; } | |
| 41 void* GetDisplay() override { return NULL; } | |
| 42 bool IsSurfaceless() const override { return true; } | |
| 43 | |
| 44 protected: | |
| 45 ~NoOpGLSurface() override {} | |
| 46 | |
| 47 private: | |
| 48 gfx::Size size_; | |
| 49 | |
| 50 DISALLOW_COPY_AND_ASSIGN(NoOpGLSurface); | |
| 51 }; | |
| 52 | |
| 53 // static | |
| 54 bool InitializeOneOffForSandbox() { | |
| 55 static bool initialized = false; | |
| 56 if (initialized) | |
| 57 return true; | |
| 58 | |
| 59 // This is called from the sandbox warmup code on Mac OS X. | |
| 60 // GPU-related stuff is very slow without this, probably because | |
| 61 // the sandbox prevents loading graphics drivers or some such. | |
| 62 std::vector<CGLPixelFormatAttribute> attribs; | |
| 63 if (ui::GpuSwitchingManager::GetInstance()->SupportsDualGpus()) { | |
| 64 // Avoid switching to the discrete GPU just for this pixel | |
| 65 // format selection. | |
| 66 attribs.push_back(kCGLPFAAllowOfflineRenderers); | |
| 67 } | |
| 68 if (GetGLImplementation() == kGLImplementationAppleGL) { | |
| 69 attribs.push_back(kCGLPFARendererID); | |
| 70 attribs.push_back(static_cast<CGLPixelFormatAttribute>( | |
| 71 kCGLRendererGenericFloatID)); | |
| 72 } | |
| 73 attribs.push_back(static_cast<CGLPixelFormatAttribute>(0)); | |
| 74 | |
| 75 CGLPixelFormatObj format; | |
| 76 GLint num_pixel_formats; | |
| 77 if (CGLChoosePixelFormat(&attribs.front(), | |
| 78 &format, | |
| 79 &num_pixel_formats) != kCGLNoError) { | |
| 80 LOG(ERROR) << "Error choosing pixel format."; | |
| 81 return false; | |
| 82 } | |
| 83 if (!format) { | |
| 84 LOG(ERROR) << "format == 0."; | |
| 85 return false; | |
| 86 } | |
| 87 CGLReleasePixelFormat(format); | |
| 88 DCHECK_NE(num_pixel_formats, 0); | |
| 89 initialized = true; | |
| 90 return true; | |
| 91 } | |
| 92 | |
| 93 } // namespace | |
| 94 | |
| 95 bool GLSurface::InitializeOneOffInternal() { | |
| 96 switch (GetGLImplementation()) { | |
| 97 case kGLImplementationDesktopGL: | |
| 98 case kGLImplementationAppleGL: | |
| 99 if (!InitializeOneOffForSandbox()) { | |
| 100 LOG(ERROR) << "GLSurfaceCGL::InitializeOneOff failed."; | |
| 101 return false; | |
| 102 } | |
| 103 break; | |
| 104 default: | |
| 105 break; | |
| 106 } | |
| 107 return true; | |
| 108 } | |
| 109 | |
| 110 scoped_refptr<GLSurface> GLSurface::CreateViewGLSurface( | |
| 111 gfx::AcceleratedWidget window) { | |
| 112 TRACE_EVENT0("gpu", "GLSurface::CreateViewGLSurface"); | |
| 113 switch (GetGLImplementation()) { | |
| 114 case kGLImplementationDesktopGL: | |
| 115 case kGLImplementationAppleGL: { | |
| 116 NOTIMPLEMENTED() << "No onscreen support on Mac."; | |
| 117 return NULL; | |
| 118 } | |
| 119 case kGLImplementationOSMesaGL: { | |
| 120 scoped_refptr<GLSurface> surface(new GLSurfaceOSMesaHeadless()); | |
| 121 if (!surface->Initialize()) | |
| 122 return NULL; | |
| 123 return surface; | |
| 124 } | |
| 125 case kGLImplementationMockGL: | |
| 126 return new GLSurfaceStub; | |
| 127 default: | |
| 128 NOTREACHED(); | |
| 129 return NULL; | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 scoped_refptr<GLSurface> GLSurface::CreateOffscreenGLSurface( | |
| 134 const gfx::Size& size) { | |
| 135 TRACE_EVENT0("gpu", "GLSurface::CreateOffscreenGLSurface"); | |
| 136 switch (GetGLImplementation()) { | |
| 137 case kGLImplementationOSMesaGL: { | |
| 138 scoped_refptr<GLSurface> surface( | |
| 139 new GLSurfaceOSMesa(OSMesaSurfaceFormatRGBA, size)); | |
| 140 if (!surface->Initialize()) | |
| 141 return NULL; | |
| 142 | |
| 143 return surface; | |
| 144 } | |
| 145 case kGLImplementationDesktopGL: | |
| 146 case kGLImplementationAppleGL: { | |
| 147 scoped_refptr<GLSurface> surface(new NoOpGLSurface(size)); | |
| 148 if (!surface->Initialize()) | |
| 149 return NULL; | |
| 150 | |
| 151 return surface; | |
| 152 } | |
| 153 case kGLImplementationMockGL: | |
| 154 return new GLSurfaceStub; | |
| 155 default: | |
| 156 NOTREACHED(); | |
| 157 return NULL; | |
| 158 } | |
| 159 } | |
| 160 | |
| 161 } // namespace gfx | |
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Chromium Code Reviews
Issue 1061733002:
Remove windows/mac/ios specific code from //ui (Closed)
Base URL: git@github.com:domokit/mojo.git@master