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| 1 /* | |
| 2 * Copyright (C) 2011 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
| 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
| 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 | |
| 27 #include "config.h" | |
| 28 | |
| 29 #include "core/platform/graphics/gpu/SharedGraphicsContext3D.h" | |
| 30 | |
| 31 #include "core/platform/graphics/Extensions3D.h" | |
| 32 #include "public/platform/Platform.h" | |
| 33 #include "public/platform/WebGraphicsContext3D.h" | |
| 34 #include "public/platform/WebGraphicsContext3DProvider.h" | |
| 35 #include "wtf/MainThread.h" | |
| 36 | |
| 37 namespace WebCore { | |
| 38 | |
| 39 class SharedGraphicsContext3DImpl { | |
| 40 public: | |
| 41 SharedGraphicsContext3DImpl() : m_context(0) { } | |
| 42 | |
| 43 PassRefPtr<GraphicsContext3D> getOrCreateContext() | |
| 44 { | |
| 45 bool wasCreated = false; | |
| 46 | |
| 47 OwnPtr<blink::WebGraphicsContext3DProvider> provider = adoptPtr(blink::P
latform::current()->createSharedOffscreenGraphicsContext3DProvider()); | |
| 48 | |
| 49 blink::WebGraphicsContext3D* webContext = 0; | |
| 50 GrContext* grContext = 0; | |
| 51 | |
| 52 if (provider) { | |
| 53 webContext = provider->context3d(); | |
| 54 grContext = provider->grContext(); | |
| 55 } | |
| 56 | |
| 57 if (webContext && grContext) { | |
| 58 blink::WebGraphicsContext3D* oldWebContext = m_context ? m_context->
webContext() : 0; | |
| 59 GrContext* oldGrContext = m_context ? m_context->grContext() : 0; | |
| 60 if (webContext != oldWebContext || grContext != oldGrContext) | |
| 61 m_context.clear(); | |
| 62 | |
| 63 if (!m_context) { | |
| 64 m_context = GraphicsContext3D::createGraphicsContextFromProvider
(provider.release()); | |
| 65 wasCreated = true; | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 if (m_context && wasCreated) | |
| 70 m_context->extensions()->pushGroupMarkerEXT("SharedGraphicsContext")
; | |
| 71 return m_context; | |
| 72 } | |
| 73 | |
| 74 private: | |
| 75 RefPtr<GraphicsContext3D> m_context; | |
| 76 }; | |
| 77 | |
| 78 PassRefPtr<GraphicsContext3D> SharedGraphicsContext3D::get() | |
| 79 { | |
| 80 DEFINE_STATIC_LOCAL(SharedGraphicsContext3DImpl, impl, ()); | |
| 81 return impl.getOrCreateContext(); | |
| 82 } | |
| 83 | |
| 84 } // namespace WebCore | |
| 85 | |
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Chromium Code Reviews
Issue 99103006:
Moving GraphicsContext and dependencies from core to platform. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk