/* * 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(SKIA) #include "FEGaussianBlur.h" #include "BitmapImageSingleFrameSkia.h" #include "SkBlurImageFilter.h" namespace WebCore { bool FEGaussianBlur::platformApplySkia() { ImageBuffer* resultImage = createImageBufferResult(); if (!resultImage) return false; FilterEffect* in = inputEffect(0); IntRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect()); setIsAlphaImage(in->isAlphaImage()); float stdX = filter()->applyHorizontalScale(m_stdX); float stdY = filter()->applyVerticalScale(m_stdY); RefPtr<Image> image = in->asImageBuffer()->copyImage(DontCopyBackingStore); SkPaint paint; GraphicsContext* dstContext = resultImage->context(); PlatformContextSkia* platformContext = dstContext->platformContext(); paint.setImageFilter(new SkBlurImageFilter(stdX, stdY))->unref(); platformContext->saveLayer(0, &paint); paint.setColor(0xFFFFFFFF); dstContext->drawImage(image.get(), ColorSpaceDeviceRGB, drawingRegion.location(), CompositeCopy); platformContext->restoreLayer(); return true; } }; #endif