| /* |
| * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> |
| * Copyright (C) 2005 Eric Seidel <eric@webkit.org> |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| |
| #include "core/platform/graphics/filters/FEMerge.h" |
| |
| #include "SkMergeImageFilter.h" |
| #include "core/platform/graphics/GraphicsContext.h" |
| #include "core/platform/graphics/filters/Filter.h" |
| #include "core/platform/graphics/filters/SkiaImageFilterBuilder.h" |
| #include "core/platform/text/TextStream.h" |
| #include "core/rendering/RenderTreeAsText.h" |
| #include "wtf/OwnArrayPtr.h" |
| |
| namespace WebCore { |
| |
| FEMerge::FEMerge(Filter* filter) |
| : FilterEffect(filter) |
| { |
| } |
| |
| PassRefPtr<FEMerge> FEMerge::create(Filter* filter) |
| { |
| return adoptRef(new FEMerge(filter)); |
| } |
| |
| void FEMerge::applySoftware() |
| { |
| unsigned size = numberOfEffectInputs(); |
| ASSERT(size > 0); |
| |
| ImageBuffer* resultImage = createImageBufferResult(); |
| if (!resultImage) |
| return; |
| |
| GraphicsContext* filterContext = resultImage->context(); |
| for (unsigned i = 0; i < size; ++i) { |
| FilterEffect* in = inputEffect(i); |
| filterContext->drawImageBuffer(in->asImageBuffer(), drawingRegionOfInputImage(in->absolutePaintRect())); |
| } |
| } |
| |
| SkImageFilter* FEMerge::createImageFilter(SkiaImageFilterBuilder* builder) |
| { |
| unsigned size = numberOfEffectInputs(); |
| |
| OwnArrayPtr<SkAutoTUnref<SkImageFilter> > inputRefs = adoptArrayPtr(new SkAutoTUnref<SkImageFilter>[size]); |
| OwnArrayPtr<SkImageFilter*> inputs = adoptArrayPtr(new SkImageFilter*[size]); |
| for (unsigned i = 0; i < size; ++i) { |
| inputRefs[i].reset(builder->build(inputEffect(i), operatingColorSpace())); |
| inputs[i] = inputRefs[i].get(); |
| } |
| return new SkMergeImageFilter(inputs.get(), size); |
| } |
| |
| TextStream& FEMerge::externalRepresentation(TextStream& ts, int indent) const |
| { |
| writeIndent(ts, indent); |
| ts << "[feMerge"; |
| FilterEffect::externalRepresentation(ts); |
| unsigned size = numberOfEffectInputs(); |
| ASSERT(size > 0); |
| ts << " mergeNodes=\"" << size << "\"]\n"; |
| for (unsigned i = 0; i < size; ++i) |
| inputEffect(i)->externalRepresentation(ts, indent + 1); |
| return ts; |
| } |
| |
| } // namespace WebCore |