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| 1 // Copyright (c) 2013 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 "content/browser/compositor/io_surface_context_mac.h" | |
| 6 | |
| 7 #include <OpenGL/gl.h> | |
| 8 #include <OpenGL/OpenGL.h> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/command_line.h" | |
| 12 #include "base/debug/trace_event.h" | |
| 13 #include "base/logging.h" | |
| 14 #include "ui/base/ui_base_switches.h" | |
| 15 #include "ui/gl/gl_switches.h" | |
| 16 #include "ui/gl/gpu_switching_manager.h" | |
| 17 | |
| 18 namespace content { | |
| 19 | |
| 20 // static | |
| 21 scoped_refptr<IOSurfaceContext> | |
| 22 IOSurfaceContext::Get(Type type) { | |
| 23 TRACE_EVENT0("browser", "IOSurfaceContext::Get"); | |
| 24 | |
| 25 // Return the context for this type, if it exists. | |
| 26 TypeMap::iterator found = type_map()->find(type); | |
| 27 if (found != type_map()->end()) { | |
| 28 DCHECK(!found->second->poisoned_); | |
| 29 return found->second; | |
| 30 } | |
| 31 | |
| 32 base::ScopedTypeRef<CGLContextObj> cgl_context; | |
| 33 CGLError error = kCGLNoError; | |
| 34 | |
| 35 // Create the pixel format object for the context. | |
| 36 std::vector<CGLPixelFormatAttribute> attribs; | |
| 37 attribs.push_back(kCGLPFADepthSize); | |
| 38 attribs.push_back(static_cast<CGLPixelFormatAttribute>(0)); | |
| 39 if (ui::GpuSwitchingManager::GetInstance()->SupportsDualGpus()) { | |
| 40 attribs.push_back(kCGLPFAAllowOfflineRenderers); | |
| 41 attribs.push_back(static_cast<CGLPixelFormatAttribute>(1)); | |
| 42 } | |
| 43 attribs.push_back(static_cast<CGLPixelFormatAttribute>(0)); | |
| 44 GLint number_virtual_screens = 0; | |
| 45 base::ScopedTypeRef<CGLPixelFormatObj> pixel_format; | |
| 46 error = CGLChoosePixelFormat(&attribs.front(), | |
| 47 pixel_format.InitializeInto(), | |
| 48 &number_virtual_screens); | |
| 49 if (error != kCGLNoError) { | |
| 50 LOG(ERROR) << "Failed to create pixel format object."; | |
| 51 return NULL; | |
| 52 } | |
| 53 | |
| 54 // Create all contexts in the same share group so that the textures don't | |
| 55 // need to be recreated when transitioning contexts. | |
| 56 CGLContextObj share_context = NULL; | |
| 57 if (!type_map()->empty()) | |
| 58 share_context = type_map()->begin()->second->cgl_context(); | |
| 59 error = CGLCreateContext( | |
| 60 pixel_format, share_context, cgl_context.InitializeInto()); | |
| 61 if (error != kCGLNoError) { | |
| 62 LOG(ERROR) << "Failed to create context object."; | |
| 63 return NULL; | |
| 64 } | |
| 65 | |
| 66 return new IOSurfaceContext(type, cgl_context); | |
| 67 } | |
| 68 | |
| 69 void IOSurfaceContext::PoisonContextAndSharegroup() { | |
| 70 if (poisoned_) | |
| 71 return; | |
| 72 | |
| 73 for (TypeMap::iterator it = type_map()->begin(); | |
| 74 it != type_map()->end(); | |
| 75 ++it) { | |
| 76 it->second->poisoned_ = true; | |
| 77 } | |
| 78 type_map()->clear(); | |
| 79 } | |
| 80 | |
| 81 IOSurfaceContext::IOSurfaceContext( | |
| 82 Type type, base::ScopedTypeRef<CGLContextObj> cgl_context) | |
| 83 : type_(type), cgl_context_(cgl_context), poisoned_(false) { | |
| 84 DCHECK(type_map()->find(type_) == type_map()->end()); | |
| 85 type_map()->insert(std::make_pair(type_, this)); | |
| 86 | |
| 87 ui::GpuSwitchingManager::GetInstance()->AddObserver(this); | |
| 88 } | |
| 89 | |
| 90 IOSurfaceContext::~IOSurfaceContext() { | |
| 91 ui::GpuSwitchingManager::GetInstance()->RemoveObserver(this); | |
| 92 | |
| 93 if (!poisoned_) { | |
| 94 DCHECK(type_map()->find(type_) != type_map()->end()); | |
| 95 DCHECK(type_map()->find(type_)->second == this); | |
| 96 type_map()->erase(type_); | |
| 97 } else { | |
| 98 TypeMap::const_iterator found = type_map()->find(type_); | |
| 99 if (found != type_map()->end()) | |
| 100 DCHECK(found->second != this); | |
| 101 } | |
| 102 } | |
| 103 | |
| 104 void IOSurfaceContext::OnGpuSwitched() { | |
| 105 // Recreate all browser-side GL contexts whenever the GPU switches. If this | |
| 106 // is not done, performance will suffer. | |
| 107 // http://crbug.com/361493 | |
| 108 PoisonContextAndSharegroup(); | |
| 109 } | |
| 110 | |
| 111 // static | |
| 112 IOSurfaceContext::TypeMap* | |
| 113 IOSurfaceContext::type_map() { | |
| 114 return type_map_.Pointer(); | |
| 115 } | |
| 116 | |
| 117 // static | |
| 118 base::LazyInstance<IOSurfaceContext::TypeMap> | |
| 119 IOSurfaceContext::type_map_; | |
| 120 | |
| 121 } // namespace content | |
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Chromium Code Reviews
Issue 753933002:
MacViews: Move content::AcceleratedWidget to new component, ui/accelerated_widget_mac (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@20141124-MacViews-MoveSoftwareLayerMac-fromcl