18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 2dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> 3dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> 4dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * Copyright (C) 2005 Eric Seidel <eric@webkit.org> 5dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> 6a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch * Copyright (C) Research In Motion Limited 2010. All rights reserved. 7dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * 8dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * This library is free software; you can redistribute it and/or 9dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * modify it under the terms of the GNU Library General Public 10dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * License as published by the Free Software Foundation; either 11dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * version 2 of the License, or (at your option) any later version. 12dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * 13dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * This library is distributed in the hope that it will be useful, 14dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * but WITHOUT ANY WARRANTY; without even the implied warranty of 15dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * Library General Public License for more details. 17dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * 18dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * You should have received a copy of the GNU Library General Public License 19dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * along with this library; see the file COPYING.LIB. If not, write to 20dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch * Boston, MA 02110-1301, USA. 22dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch */ 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "config.h" 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen#if ENABLE(FILTERS) 27bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen#include "FEOffset.h" 280bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 295f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include "Filter.h" 300bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch#include "GraphicsContext.h" 3165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "RenderTreeAsText.h" 3265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "TextStream.h" 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WebCore { 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 364576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) WangFEOffset::FEOffset(Filter* filter, float dx, float dy) 374576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang : FilterEffect(filter) 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_dx(dx) 398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_dy(dy) 408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 434576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) WangPassRefPtr<FEOffset> FEOffset::create(Filter* filter, float dx, float dy) 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 454576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang return adoptRef(new FEOffset(filter, dx, dy)); 468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectfloat FEOffset::dx() const 498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return m_dx; 518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid FEOffset::setDx(float dx) 548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_dx = dx; 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectfloat FEOffset::dy() const 598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return m_dy; 618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid FEOffset::setDy(float dy) 648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_dy = dy; 668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 684576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wangvoid FEOffset::determineAbsolutePaintRect() 69a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 70a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch FloatRect paintRect = inputEffect(0)->absolutePaintRect(); 714576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang Filter* filter = this->filter(); 72a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch paintRect.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy)); 73a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch paintRect.intersect(maxEffectRect()); 74a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setAbsolutePaintRect(enclosingIntRect(paintRect)); 75a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 76a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 774576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wangvoid FEOffset::apply() 788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 79f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasResult()) 80f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch return; 8168513a70bcd92384395513322f1b801e7bf9c729Steve Block FilterEffect* in = inputEffect(0); 824576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang in->apply(); 83f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!in->hasResult()) 840bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return; 850bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 86f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch ImageBuffer* resultImage = createImageBufferResult(); 87f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!resultImage) 880bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return; 890bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 9068513a70bcd92384395513322f1b801e7bf9c729Steve Block setIsAlphaImage(in->isAlphaImage()); 91d0825bca7fe65beaee391d30da42e937db621564Steve Block 92a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect()); 934576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang Filter* filter = this->filter(); 94a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch drawingRegion.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy)); 95f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch resultImage->context()->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegion); 968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid FEOffset::dump() 998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1026c2af9490927c3c5959b5cb07461b646f8b32f6cKristian MonsenTextStream& FEOffset::externalRepresentation(TextStream& ts, int indent) const 1038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1046c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen writeIndent(ts, indent); 1056c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen ts << "[feOffset"; 1068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FilterEffect::externalRepresentation(ts); 1076c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen ts << " dx=\"" << dx() << "\" dy=\"" << dy() << "\"]\n"; 10868513a70bcd92384395513322f1b801e7bf9c729Steve Block inputEffect(0)->externalRepresentation(ts, indent + 1); 1098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return ts; 1108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace WebCore 1138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 114bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen#endif // ENABLE(FILTERS) 115