| /* |
| * Copyright (C) 2014 Apple, Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef AcceleratedCompositingContext_h |
| #define AcceleratedCompositingContext_h |
| |
| #if USE(TEXTURE_MAPPER_GL) |
| |
| #include <WebCore/FloatRect.h> |
| #include <WebCore/GLContext.h> |
| #include <WebCore/GraphicsLayer.h> |
| #include <WebCore/GraphicsLayerClient.h> |
| #include <WebCore/IntRect.h> |
| #include <WebCore/IntSize.h> |
| #include <WebCore/TextureMapperFPSCounter.h> |
| #include <WebCore/Timer.h> |
| |
| class WebView; |
| |
| class AcceleratedCompositingContext : public WebCore::GraphicsLayerClient { |
| WTF_MAKE_NONCOPYABLE(AcceleratedCompositingContext); |
| public: |
| explicit AcceleratedCompositingContext(WebView&); |
| virtual ~AcceleratedCompositingContext(); |
| |
| void setRootCompositingLayer(WebCore::GraphicsLayer*); |
| void setNonCompositedContentsNeedDisplay(const WebCore::IntRect&); |
| void scheduleLayerFlush(); |
| void resizeRootLayer(const WebCore::IntSize&); |
| bool enabled(); |
| |
| // GraphicsLayerClient |
| void paintContents(const WebCore::GraphicsLayer*, WebCore::GraphicsContext&, OptionSet<WebCore::GraphicsLayerPaintingPhase>, const WebCore::FloatRect& rectToPaint, WebCore::GraphicsLayerPaintBehavior) override; |
| float deviceScaleFactor() const override; |
| |
| void initialize(); |
| |
| enum CompositePurpose { ForResize, NotForResize }; |
| void compositeLayersToContext(CompositePurpose = NotForResize); |
| |
| void flushAndRenderLayers(); |
| bool flushPendingLayerChanges(); |
| bool flushPendingLayerChangesSoon(); |
| void scrollNonCompositedContents(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset); |
| |
| static bool acceleratedCompositingAvailable(); |
| |
| private: |
| WebView& m_webView; |
| std::unique_ptr<WebCore::GLContext> m_context; |
| HWND m_window; |
| RefPtr<WebCore::GraphicsLayer> m_rootLayer; |
| RefPtr<WebCore::GraphicsLayer> m_nonCompositedContentLayer; |
| std::unique_ptr<WebCore::TextureMapper> m_textureMapper; |
| WebCore::TextureMapperFPSCounter m_fpsCounter; |
| |
| class LayerFlushTimer : public WebCore::TimerBase { |
| public: |
| LayerFlushTimer(AcceleratedCompositingContext& context) |
| : m_context(context) |
| { |
| } |
| |
| private: |
| virtual void fired() |
| { |
| m_context.layerFlushTimerFired(); |
| } |
| |
| AcceleratedCompositingContext& m_context; |
| } m_layerFlushTimer; |
| |
| void layerFlushTimerFired(); |
| void stopAnyPendingLayerFlush(); |
| bool prepareForRendering(); |
| bool startedAnimation(WebCore::GraphicsLayer*); |
| void applyDeviceScaleFactor(); |
| }; |
| |
| #endif // TEXTURE_MAPPER_GL |
| |
| #endif // AcceleratedCompositingContext_h |