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| 1 /* | |
| 2 * Copyright (C) 2011 Apple 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 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef SKY_ENGINE_CORE_HTML_CANVAS_WEBGLCONTEXTGROUP_H_ | |
| 27 #define SKY_ENGINE_CORE_HTML_CANVAS_WEBGLCONTEXTGROUP_H_ | |
| 28 | |
| 29 #include "sky/engine/core/html/canvas/WebGLRenderingContextBase.h" | |
| 30 #include "sky/engine/wtf/HashSet.h" | |
| 31 #include "sky/engine/wtf/PassRefPtr.h" | |
| 32 #include "sky/engine/wtf/RefCounted.h" | |
| 33 | |
| 34 namespace blink { | |
| 35 class WebGraphicsContext3D; | |
| 36 } | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 class WebGLExtension; | |
| 41 class WebGLSharedObject; | |
| 42 class WebGLRenderingContextBase; | |
| 43 | |
| 44 typedef int ExceptionCode; | |
| 45 | |
| 46 class WebGLContextGroup final : public RefCounted<WebGLContextGroup> { | |
| 47 public: | |
| 48 static PassRefPtr<WebGLContextGroup> create(); | |
| 49 ~WebGLContextGroup(); | |
| 50 | |
| 51 void addContext(WebGLRenderingContextBase*); | |
| 52 void removeContext(WebGLRenderingContextBase*); | |
| 53 | |
| 54 void addObject(WebGLSharedObject*); | |
| 55 void removeObject(WebGLSharedObject*); | |
| 56 | |
| 57 blink::WebGraphicsContext3D* getAWebGraphicsContext3D(); | |
| 58 | |
| 59 void loseContextGroup(WebGLRenderingContextBase::LostContextMode, WebGLRende
ringContextBase::AutoRecoveryMethod); | |
| 60 | |
| 61 private: | |
| 62 friend class WebGLObject; | |
| 63 | |
| 64 WebGLContextGroup(); | |
| 65 | |
| 66 void detachAndRemoveAllObjects(); | |
| 67 | |
| 68 // FIXME: Oilpan: this object is not on the heap, but keeps bare | |
| 69 // pointers to garbage collected objects in the two hash sets | |
| 70 // below. The objects are responsible for managing their | |
| 71 // registration with WebGLContextGroup, and vice versa, the | |
| 72 // WebGLContextGroup takes care of detaching the group objects if | |
| 73 // the set of WebGLRenderingContextBase contexts becomes empty. | |
| 74 HashSet<WebGLRenderingContextBase*> m_contexts; | |
| 75 HashSet<WebGLSharedObject*> m_groupObjects; | |
| 76 }; | |
| 77 | |
| 78 } // namespace blink | |
| 79 | |
| 80 #endif // SKY_ENGINE_CORE_HTML_CANVAS_WEBGLCONTEXTGROUP_H_ | |
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