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| 1 /* | |
| 2 * Copyright (C) 2010 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 #ifndef GraphicsContext3DPrivate_h | |
| 27 #define GraphicsContext3DPrivate_h | |
| 28 | |
| 29 #include "SkBitmap.h" | |
| 30 #include "core/platform/graphics/Extensions3D.h" | |
| 31 #include "core/platform/graphics/GraphicsContext3D.h" | |
| 32 #include <wtf/HashSet.h> | |
| 33 #include <wtf/OwnArrayPtr.h> | |
| 34 #include <wtf/OwnPtr.h> | |
| 35 | |
| 36 class GrContext; | |
| 37 | |
| 38 namespace WebKit { | |
| 39 class WebGraphicsContext3D; | |
| 40 class WebGraphicsContext3DProvider; | |
| 41 } | |
| 42 | |
| 43 namespace WebCore { | |
| 44 | |
| 45 class DrawingBuffer; | |
| 46 class Extensions3D; | |
| 47 class GraphicsContext3DContextLostCallbackAdapter; | |
| 48 class GraphicsContext3DErrorMessageCallbackAdapter; | |
| 49 class GrMemoryAllocationChangedCallbackAdapter; | |
| 50 | |
| 51 class GraphicsContext3DPrivate { | |
| 52 public: | |
| 53 // Callers must make the context current before using it AND check that the
context was created successfully | |
| 54 // via ContextLost before using the context in any way. Once made current on
a thread, the context cannot | |
| 55 // be used on any other thread. | |
| 56 static PassRefPtr<GraphicsContext3D> createGraphicsContextFromWebContext(Pas
sOwnPtr<WebKit::WebGraphicsContext3D>, bool preserveDrawingBuffer = false); | |
| 57 | |
| 58 static PassRefPtr<GraphicsContext3D> createGraphicsContextFromProvider(PassO
wnPtr<WebKit::WebGraphicsContext3DProvider>, bool preserveDrawingBuffer = false)
; | |
| 59 | |
| 60 // Helper function to provide access to the lower-level WebGraphicsContext3D
, | |
| 61 // which is needed for subordinate contexts like WebGL's to share resources | |
| 62 // with the compositor's context. | |
| 63 static WebKit::WebGraphicsContext3D* extractWebGraphicsContext3D(GraphicsCon
text3D*); | |
| 64 | |
| 65 virtual ~GraphicsContext3DPrivate(); | |
| 66 | |
| 67 WebKit::WebGraphicsContext3D* webContext() const { return m_impl; } | |
| 68 | |
| 69 GrContext* grContext(); | |
| 70 | |
| 71 void markContextChanged(); | |
| 72 bool layerComposited() const; | |
| 73 void markLayerComposited(); | |
| 74 | |
| 75 void paintFramebufferToCanvas(int framebuffer, int width, int height, bool p
remultiplyAlpha, ImageBuffer*); | |
| 76 | |
| 77 void setContextLostCallback(PassOwnPtr<GraphicsContext3D::ContextLostCallbac
k>); | |
| 78 void setErrorMessageCallback(PassOwnPtr<GraphicsContext3D::ErrorMessageCallb
ack>); | |
| 79 | |
| 80 // Extensions3D support. | |
| 81 Extensions3D* getExtensions(); | |
| 82 bool supportsExtension(const String& name); | |
| 83 bool ensureExtensionEnabled(const String& name); | |
| 84 bool isExtensionEnabled(const String& name); | |
| 85 | |
| 86 bool isResourceSafe(); | |
| 87 | |
| 88 bool preserveDrawingBuffer() const { return m_preserveDrawingBuffer; } | |
| 89 | |
| 90 private: | |
| 91 GraphicsContext3DPrivate(PassOwnPtr<WebKit::WebGraphicsContext3D>, bool pres
erveDrawingBuffer); | |
| 92 GraphicsContext3DPrivate(PassOwnPtr<WebKit::WebGraphicsContext3DProvider>, b
ool preserveDrawingBuffer); | |
| 93 | |
| 94 void initializeExtensions(); | |
| 95 | |
| 96 OwnPtr<WebKit::WebGraphicsContext3DProvider> m_provider; | |
| 97 WebKit::WebGraphicsContext3D* m_impl; | |
| 98 OwnPtr<WebKit::WebGraphicsContext3D> m_ownedWebContext; | |
| 99 OwnPtr<Extensions3D> m_extensions; | |
| 100 OwnPtr<GraphicsContext3DContextLostCallbackAdapter> m_contextLostCallbackAda
pter; | |
| 101 OwnPtr<GraphicsContext3DErrorMessageCallbackAdapter> m_errorMessageCallbackA
dapter; | |
| 102 OwnPtr<GrMemoryAllocationChangedCallbackAdapter> m_grContextMemoryAllocation
CallbackAdapter; | |
| 103 bool m_initializedAvailableExtensions; | |
| 104 HashSet<String> m_enabledExtensions; | |
| 105 HashSet<String> m_requestableExtensions; | |
| 106 bool m_layerComposited; | |
| 107 bool m_preserveDrawingBuffer; | |
| 108 | |
| 109 enum ResourceSafety { | |
| 110 ResourceSafetyUnknown, | |
| 111 ResourceSafe, | |
| 112 ResourceUnsafe | |
| 113 }; | |
| 114 ResourceSafety m_resourceSafety; | |
| 115 | |
| 116 // If the width and height of the Canvas's backing store don't | |
| 117 // match those that we were given in the most recent call to | |
| 118 // reshape(), then we need an intermediate bitmap to read back the | |
| 119 // frame buffer into. This seems to happen when CSS styles are | |
| 120 // used to resize the Canvas. | |
| 121 SkBitmap m_resizingBitmap; | |
| 122 | |
| 123 GrContext* m_grContext; | |
| 124 SkAutoTUnref<GrContext> m_ownedGrContext; | |
| 125 }; | |
| 126 | |
| 127 } // namespace WebCore | |
| 128 | |
| 129 #endif // GraphicsContext3DPrivate_h | |
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Chromium Code Reviews
Issue 15301006:
Merged GraphicsContext3DPrivate into GraphicsContext3D (Closed)
Base URL: svn://svn.chromium.org/blink/trunk