/* * Copyright (C) 2011 Google Inc. All rights reserved. * * 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 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 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. */ #include "config.h" #if USE(ACCELERATED_COMPOSITING) #include "SkPictureCanvasLayerTextureUpdater.h" #include "GraphicsContext.h" #include "LayerPainterChromium.h" #include "PlatformContextSkia.h" #include "SkCanvas.h" #include "TraceEvent.h" namespace WebCore { SkPictureCanvasLayerTextureUpdater::SkPictureCanvasLayerTextureUpdater(PassOwnPtr<LayerPainterChromium> painter) : CanvasLayerTextureUpdater(painter) , m_layerIsOpaque(false) { } SkPictureCanvasLayerTextureUpdater::~SkPictureCanvasLayerTextureUpdater() { } void SkPictureCanvasLayerTextureUpdater::prepareToUpdate(const IntRect& contentRect, const IntSize& /* tileSize */, int borderTexels, float contentsScale, IntRect& resultingOpaqueRect) { SkCanvas* canvas = m_picture.beginRecording(contentRect.width(), contentRect.height()); PlatformContextSkia platformContext(canvas); platformContext.setDeferred(true); platformContext.setTrackOpaqueRegion(!m_layerIsOpaque); // Assumption: if a tiler is using border texels, then it is because the // layer is likely to be filtered or transformed. Because it might be // transformed, set image buffer flag to draw the text in grayscale // instead of using subpixel antialiasing. platformContext.setDrawingToImageBuffer(borderTexels ? true : false); GraphicsContext graphicsContext(&platformContext); paintContents(graphicsContext, platformContext, contentRect, contentsScale, resultingOpaqueRect); m_picture.endRecording(); } void SkPictureCanvasLayerTextureUpdater::drawPicture(SkCanvas* canvas) { TRACE_EVENT("SkPictureCanvasLayerTextureUpdater::drawPicture", this, 0); canvas->drawPicture(m_picture); } void SkPictureCanvasLayerTextureUpdater::setOpaque(bool opaque) { m_layerIsOpaque = opaque; } } // namespace WebCore #endif // USE(ACCELERATED_COMPOSITING)