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* Copyright (C) 2012 Google Inc. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef WebCompositorSupport_h
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#define WebCompositorSupport_h
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#include "WebAnimation.h"
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#include "WebCommon.h"
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#include "WebLayerTreeView.h"
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#include "WebScrollbarThemePainter.h"
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class WebAnimationCurve;
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class WebContentLayer;
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class WebContentLayerClient;
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class WebDelegatedRendererLayer;
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class WebExternalTextureLayer;
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class WebExternalTextureLayerClient;
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class WebFloatAnimationCurve;
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class WebIOSurfaceLayer;
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class WebScrollbarLayer;
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class WebScrollbarThemeGeometry;
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class WebSolidColorLayer;
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class WebTransformAnimationCurve;
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class WebVideoFrameProvider;
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class WebCompositorSupport {
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// Initializes the compositor. Threaded compositing is enabled by passing in
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// a non-null WebThread. No compositor classes or methods should be used
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// prior to calling initialize.
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virtual void initialize(WebThread*) { }
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// Returns whether the compositor was initialized with threading enabled.
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virtual bool isThreadingEnabled() { return false; }
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// Shuts down the compositor. This must be called when all compositor data
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// types have been deleted. No compositor classes or methods should be used
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virtual void shutdown() { }
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// May return 0 if initialization fails.
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virtual WebLayerTreeView* createLayerTreeView(WebLayerTreeViewClient*, const WebLayer& root, const WebLayerTreeView::Settings&) { return 0; }
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// Layers -------------------------------------------------------
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virtual WebLayer* createLayer() { return 0; }
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virtual WebContentLayer* createContentLayer(WebContentLayerClient*) { return 0; }
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virtual WebDelegatedRendererLayer* createDelegatedRendererLayer() { return 0; }
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virtual WebExternalTextureLayer* createExternalTextureLayer(WebExternalTextureLayerClient* = 0) { return 0; }
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virtual WebIOSurfaceLayer* createIOSurfaceLayer() { return 0; }
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virtual WebImageLayer* createImageLayer() { return 0; }
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virtual WebSolidColorLayer* createSolidColorLayer() { return 0; }
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virtual WebVideoLayer* createVideoLayer(WebVideoFrameProvider*) { return 0; }
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virtual WebScrollbarLayer* createScrollbarLayer(WebScrollbar*, WebScrollbarThemePainter, WebScrollbarThemeGeometry*) { return 0; }
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// Animation ----------------------------------------------------
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virtual WebAnimation* createAnimation(const WebAnimationCurve&, WebAnimation::TargetProperty, int animationId = 0) { return 0; }
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virtual WebFloatAnimationCurve* createFloatAnimationCurve() { return 0; }
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virtual WebTransformAnimationCurve* createTransformAnimationCurve() { return 0; }
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virtual ~WebCompositorSupport() { }
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#endif // WebCompositorSupport_h