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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 <string> | |
| 6 | |
| 7 #include "base/command_line.h" | |
| 8 #include "base/lazy_instance.h" | |
| 9 #include "base/logging.h" | |
| 10 #include "base/threading/thread_local.h" | |
| 11 #include "ui/gfx/gl/gl_context.h" | |
| 12 #include "ui/gfx/gl/gl_bindings.h" | |
| 13 #include "ui/gfx/gl/gl_implementation.h" | |
| 14 #include "ui/gfx/gl/gl_surface.h" | |
| 15 #include "ui/gfx/gl/gl_switches.h" | |
| 16 | |
| 17 namespace gfx { | |
| 18 | |
| 19 namespace { | |
| 20 base::LazyInstance<base::ThreadLocalPointer<GLContext> >::Leaky | |
| 21 current_context_ = LAZY_INSTANCE_INITIALIZER; | |
| 22 } // namespace | |
| 23 | |
| 24 GLContext::GLContext(GLShareGroup* share_group) : share_group_(share_group) { | |
| 25 if (!share_group_.get()) | |
| 26 share_group_ = new GLShareGroup; | |
| 27 | |
| 28 share_group_->AddContext(this); | |
| 29 } | |
| 30 | |
| 31 GLContext::~GLContext() { | |
| 32 share_group_->RemoveContext(this); | |
| 33 if (GetCurrent() == this) { | |
| 34 SetCurrent(NULL, NULL); | |
| 35 } | |
| 36 } | |
| 37 | |
| 38 std::string GLContext::GetExtensions() { | |
| 39 DCHECK(IsCurrent(NULL)); | |
| 40 | |
| 41 std::string extensions; | |
| 42 if (GLSurface::GetCurrent()) { | |
| 43 extensions = GLSurface::GetCurrent()->GetExtensions(); | |
| 44 } | |
| 45 | |
| 46 const char* gl_ext = reinterpret_cast<const char*>( | |
| 47 glGetString(GL_EXTENSIONS)); | |
| 48 if (gl_ext) { | |
| 49 extensions += (!extensions.empty() && gl_ext[0]) ? " " : ""; | |
| 50 extensions += gl_ext; | |
| 51 } | |
| 52 | |
| 53 return extensions; | |
| 54 } | |
| 55 | |
| 56 bool GLContext::HasExtension(const char* name) { | |
| 57 std::string extensions = GetExtensions(); | |
| 58 extensions += " "; | |
| 59 | |
| 60 std::string delimited_name(name); | |
| 61 delimited_name += " "; | |
| 62 | |
| 63 return extensions.find(delimited_name) != std::string::npos; | |
| 64 } | |
| 65 | |
| 66 GLShareGroup* GLContext::share_group() { | |
| 67 return share_group_.get(); | |
| 68 } | |
| 69 | |
| 70 bool GLContext::LosesAllContextsOnContextLost() { | |
| 71 switch (GetGLImplementation()) { | |
| 72 case kGLImplementationDesktopGL: | |
| 73 return false; | |
| 74 case kGLImplementationEGLGLES2: | |
| 75 return true; | |
| 76 case kGLImplementationOSMesaGL: | |
| 77 case kGLImplementationAppleGL: | |
| 78 return false; | |
| 79 case kGLImplementationMockGL: | |
| 80 return false; | |
| 81 default: | |
| 82 NOTREACHED(); | |
| 83 return true; | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 GLContext* GLContext::GetCurrent() { | |
| 88 return current_context_.Pointer()->Get(); | |
| 89 } | |
| 90 | |
| 91 void GLContext::SetCurrent(GLContext* context, GLSurface* surface) { | |
| 92 current_context_.Pointer()->Set(context); | |
| 93 GLSurface::SetCurrent(surface); | |
| 94 } | |
| 95 | |
| 96 bool GLContext::WasAllocatedUsingARBRobustness() { | |
| 97 return false; | |
| 98 } | |
| 99 | |
| 100 bool GLContext::InitializeExtensionBindings() { | |
| 101 DCHECK(IsCurrent(NULL)); | |
| 102 static bool initialized = false; | |
| 103 if (initialized) | |
| 104 return initialized; | |
| 105 initialized = InitializeGLExtensionBindings(GetGLImplementation(), this); | |
| 106 if (!initialized) | |
| 107 LOG(ERROR) << "Could not initialize extension bindings."; | |
| 108 return initialized; | |
| 109 } | |
| 110 | |
| 111 } // namespace gfx | |
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Chromium Code Reviews
Issue 10392068:
ui: Move gl/ directory out of gfx/, up to ui/. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src