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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_cgl.h" | |
| 6 | |
| 7 #include <OpenGL/CGLRenderers.h> | |
| 8 | |
| 9 #include "base/basictypes.h" | |
| 10 #include "base/logging.h" | |
| 11 #include "base/mac/mac_util.h" | |
| 12 #include "ui/gl/gl_bindings.h" | |
| 13 #include "ui/gl/gl_context.h" | |
| 14 #include "ui/gl/gl_implementation.h" | |
| 15 #include "ui/gl/gpu_switching_manager.h" | |
| 16 | |
| 17 namespace gfx { | |
| 18 | |
| 19 namespace { | |
| 20 CGLPixelFormatObj g_pixel_format; | |
| 21 } | |
| 22 | |
| 23 GLSurfaceCGL::GLSurfaceCGL() {} | |
| 24 | |
| 25 bool GLSurfaceCGL::InitializeOneOff() { | |
| 26 static bool initialized = false; | |
| 27 if (initialized) | |
| 28 return true; | |
| 29 | |
| 30 // This is called from the sandbox warmup code on Mac OS X. | |
| 31 // GPU-related stuff is very slow without this, probably because | |
| 32 // the sandbox prevents loading graphics drivers or some such. | |
| 33 std::vector<CGLPixelFormatAttribute> attribs; | |
| 34 if (ui::GpuSwitchingManager::GetInstance()->SupportsDualGpus()) { | |
| 35 // Avoid switching to the discrete GPU just for this pixel | |
| 36 // format selection. | |
| 37 attribs.push_back(kCGLPFAAllowOfflineRenderers); | |
| 38 } | |
| 39 if (GetGLImplementation() == kGLImplementationAppleGL) { | |
| 40 attribs.push_back(kCGLPFARendererID); | |
| 41 attribs.push_back(static_cast<CGLPixelFormatAttribute>( | |
| 42 kCGLRendererGenericFloatID)); | |
| 43 } | |
| 44 attribs.push_back(static_cast<CGLPixelFormatAttribute>(0)); | |
| 45 | |
| 46 CGLPixelFormatObj format; | |
| 47 GLint num_pixel_formats; | |
| 48 if (CGLChoosePixelFormat(&attribs.front(), | |
| 49 &format, | |
| 50 &num_pixel_formats) != kCGLNoError) { | |
| 51 LOG(ERROR) << "Error choosing pixel format."; | |
| 52 return false; | |
| 53 } | |
| 54 if (!format) { | |
| 55 LOG(ERROR) << "format == 0."; | |
| 56 return false; | |
| 57 } | |
| 58 CGLReleasePixelFormat(format); | |
| 59 DCHECK_NE(num_pixel_formats, 0); | |
| 60 initialized = true; | |
| 61 return true; | |
| 62 } | |
| 63 | |
| 64 void* GLSurfaceCGL::GetPixelFormat() { | |
| 65 return g_pixel_format; | |
| 66 } | |
| 67 | |
| 68 GLSurfaceCGL::~GLSurfaceCGL() {} | |
| 69 | |
| 70 NoOpGLSurfaceCGL::NoOpGLSurfaceCGL(const gfx::Size& size) | |
| 71 : size_(size) { | |
| 72 } | |
| 73 | |
| 74 bool NoOpGLSurfaceCGL::Initialize() { | |
| 75 return true; | |
| 76 } | |
| 77 | |
| 78 void NoOpGLSurfaceCGL::Destroy() { | |
| 79 } | |
| 80 | |
| 81 bool NoOpGLSurfaceCGL::IsOffscreen() { | |
| 82 return true; | |
| 83 } | |
| 84 | |
| 85 bool NoOpGLSurfaceCGL::SwapBuffers() { | |
| 86 NOTREACHED() << "Cannot call SwapBuffers on a NoOpGLSurfaceCGL."; | |
| 87 return false; | |
| 88 } | |
| 89 | |
| 90 gfx::Size NoOpGLSurfaceCGL::GetSize() { | |
| 91 return size_; | |
| 92 } | |
| 93 | |
| 94 void* NoOpGLSurfaceCGL::GetHandle() { | |
| 95 return NULL; | |
| 96 } | |
| 97 | |
| 98 void* NoOpGLSurfaceCGL::GetDisplay() { | |
| 99 return NULL; | |
| 100 } | |
| 101 | |
| 102 NoOpGLSurfaceCGL::~NoOpGLSurfaceCGL() { | |
| 103 Destroy(); | |
| 104 } | |
| 105 | |
| 106 } // namespace gfx | |
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Chromium Code Reviews
Issue 334173006:
Clean up GLSurfaceCGL (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master