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author | Ben Murdoch <benm@google.com> | 2011-05-13 16:23:25 +0100 |
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committer | Ben Murdoch <benm@google.com> | 2011-05-16 11:35:02 +0100 |
commit | 65f03d4f644ce73618e5f4f50dd694b26f55ae12 (patch) | |
tree | f478babb801e720de7bfaee23443ffe029f58731 /Source/WebCore/rendering/RenderSVGResourceMasker.cpp | |
parent | 47de4a2fb7262c7ebdb9cd133ad2c54c187454d0 (diff) | |
download | external_webkit-65f03d4f644ce73618e5f4f50dd694b26f55ae12.zip external_webkit-65f03d4f644ce73618e5f4f50dd694b26f55ae12.tar.gz external_webkit-65f03d4f644ce73618e5f4f50dd694b26f55ae12.tar.bz2 |
Merge WebKit at r75993: Initial merge by git.
Change-Id: I602bbdc3974787a3b0450456a30a7868286921c3
Diffstat (limited to 'Source/WebCore/rendering/RenderSVGResourceMasker.cpp')
-rw-r--r-- | Source/WebCore/rendering/RenderSVGResourceMasker.cpp | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/Source/WebCore/rendering/RenderSVGResourceMasker.cpp b/Source/WebCore/rendering/RenderSVGResourceMasker.cpp deleted file mode 100644 index ebbbe93..0000000 --- a/Source/WebCore/rendering/RenderSVGResourceMasker.cpp +++ /dev/null @@ -1,224 +0,0 @@ -/* - * Copyright (C) Research In Motion Limited 2009-2010. 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" - -#if ENABLE(SVG) -#include "RenderSVGResourceMasker.h" - -#include "AffineTransform.h" -#include "Element.h" -#include "FloatPoint.h" -#include "FloatRect.h" -#include "GraphicsContext.h" -#include "Image.h" -#include "ImageBuffer.h" -#include "IntRect.h" -#include "RenderSVGResource.h" -#include "SVGElement.h" -#include "SVGImageBufferTools.h" -#include "SVGMaskElement.h" -#include "SVGStyledElement.h" -#include "SVGUnitTypes.h" - -#include <wtf/ByteArray.h> -#include <wtf/Vector.h> -#include <wtf/UnusedParam.h> - -namespace WebCore { - -RenderSVGResourceType RenderSVGResourceMasker::s_resourceType = MaskerResourceType; - -RenderSVGResourceMasker::RenderSVGResourceMasker(SVGMaskElement* node) - : RenderSVGResourceContainer(node) -{ -} - -RenderSVGResourceMasker::~RenderSVGResourceMasker() -{ - if (m_masker.isEmpty()) - return; - - deleteAllValues(m_masker); - m_masker.clear(); -} - -void RenderSVGResourceMasker::removeAllClientsFromCache(bool markForInvalidation) -{ - m_maskContentBoundaries = FloatRect(); - if (!m_masker.isEmpty()) { - deleteAllValues(m_masker); - m_masker.clear(); - } - - markAllClientsForInvalidation(markForInvalidation ? LayoutAndBoundariesInvalidation : ParentOnlyInvalidation); -} - -void RenderSVGResourceMasker::removeClientFromCache(RenderObject* client, bool markForInvalidation) -{ - ASSERT(client); - - if (m_masker.contains(client)) - delete m_masker.take(client); - - markClientForInvalidation(client, markForInvalidation ? BoundariesInvalidation : ParentOnlyInvalidation); -} - -bool RenderSVGResourceMasker::applyResource(RenderObject* object, RenderStyle*, GraphicsContext*& context, unsigned short resourceMode) -{ - ASSERT(object); - ASSERT(context); -#ifndef NDEBUG - ASSERT(resourceMode == ApplyToDefaultMode); -#else - UNUSED_PARAM(resourceMode); -#endif - - if (!m_masker.contains(object)) - m_masker.set(object, new MaskerData); - - MaskerData* maskerData = m_masker.get(object); - - AffineTransform absoluteTransform; - SVGImageBufferTools::calculateTransformationToOutermostSVGCoordinateSystem(object, absoluteTransform); - - FloatRect absoluteTargetRect = absoluteTransform.mapRect(object->repaintRectInLocalCoordinates()); - FloatRect clampedAbsoluteTargetRect = SVGImageBufferTools::clampedAbsoluteTargetRectForRenderer(object, absoluteTargetRect); - - if (!maskerData->maskImage && !clampedAbsoluteTargetRect.isEmpty()) { - SVGMaskElement* maskElement = static_cast<SVGMaskElement*>(node()); - if (!maskElement) - return false; - - if (!SVGImageBufferTools::createImageBuffer(absoluteTargetRect, clampedAbsoluteTargetRect, maskerData->maskImage, ColorSpaceLinearRGB)) - return false; - - GraphicsContext* maskImageContext = maskerData->maskImage->context(); - ASSERT(maskImageContext); - - // The save/restore pair is needed for clipToImageBuffer - it doesn't work without it on non-Cg platforms. - maskImageContext->save(); - maskImageContext->translate(-clampedAbsoluteTargetRect.x(), -clampedAbsoluteTargetRect.y()); - maskImageContext->concatCTM(absoluteTransform); - - drawContentIntoMaskImage(maskerData, maskElement, object); - } - - if (!maskerData->maskImage) - return false; - - SVGImageBufferTools::clipToImageBuffer(context, absoluteTransform, clampedAbsoluteTargetRect, maskerData->maskImage); - return true; -} - -void RenderSVGResourceMasker::drawContentIntoMaskImage(MaskerData* maskerData, const SVGMaskElement* maskElement, RenderObject* object) -{ - GraphicsContext* maskImageContext = maskerData->maskImage->context(); - ASSERT(maskImageContext); - - // Eventually adjust the mask image context according to the target objectBoundingBox. - AffineTransform maskContentTransformation; - if (maskElement->maskContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) { - FloatRect objectBoundingBox = object->objectBoundingBox(); - maskContentTransformation.translate(objectBoundingBox.x(), objectBoundingBox.y()); - maskContentTransformation.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height()); - maskImageContext->concatCTM(maskContentTransformation); - } - - // Draw the content into the ImageBuffer. - for (Node* node = maskElement->firstChild(); node; node = node->nextSibling()) { - RenderObject* renderer = node->renderer(); - if (!node->isSVGElement() || !static_cast<SVGElement*>(node)->isStyled() || !renderer) - continue; - RenderStyle* style = renderer->style(); - if (!style || style->display() == NONE || style->visibility() != VISIBLE) - continue; - SVGImageBufferTools::renderSubtreeToImageBuffer(maskerData->maskImage.get(), renderer, maskContentTransformation); - } - - maskImageContext->restore(); - -#if !PLATFORM(CG) - maskerData->maskImage->transformColorSpace(ColorSpaceDeviceRGB, ColorSpaceLinearRGB); -#endif - - // Create the luminance mask. - IntRect maskImageRect(IntPoint(), maskerData->maskImage->size()); - RefPtr<ByteArray> srcPixelArray = maskerData->maskImage->getUnmultipliedImageData(maskImageRect); - - unsigned pixelArrayLength = srcPixelArray->length(); - for (unsigned pixelOffset = 0; pixelOffset < pixelArrayLength; pixelOffset += 4) { - unsigned char a = srcPixelArray->get(pixelOffset + 3); - if (!a) - continue; - unsigned char r = srcPixelArray->get(pixelOffset); - unsigned char g = srcPixelArray->get(pixelOffset + 1); - unsigned char b = srcPixelArray->get(pixelOffset + 2); - - double luma = (r * 0.2125 + g * 0.7154 + b * 0.0721) * ((double)a / 255.0); - srcPixelArray->set(pixelOffset + 3, luma); - } - - maskerData->maskImage->putUnmultipliedImageData(srcPixelArray.get(), maskImageRect.size(), maskImageRect, IntPoint()); -} - -void RenderSVGResourceMasker::calculateMaskContentRepaintRect() -{ - for (Node* childNode = node()->firstChild(); childNode; childNode = childNode->nextSibling()) { - RenderObject* renderer = childNode->renderer(); - if (!childNode->isSVGElement() || !static_cast<SVGElement*>(childNode)->isStyled() || !renderer) - continue; - RenderStyle* style = renderer->style(); - if (!style || style->display() == NONE || style->visibility() != VISIBLE) - continue; - m_maskContentBoundaries.unite(renderer->localToParentTransform().mapRect(renderer->repaintRectInLocalCoordinates())); - } -} - -FloatRect RenderSVGResourceMasker::resourceBoundingBox(RenderObject* object) -{ - SVGMaskElement* maskElement = static_cast<SVGMaskElement*>(node()); - ASSERT(maskElement); - - FloatRect objectBoundingBox = object->objectBoundingBox(); - FloatRect maskBoundaries = maskElement->maskBoundingBox(objectBoundingBox); - - // Resource was not layouted yet. Give back clipping rect of the mask. - if (selfNeedsLayout()) - return maskBoundaries; - - if (m_maskContentBoundaries.isEmpty()) - calculateMaskContentRepaintRect(); - - FloatRect maskRect = m_maskContentBoundaries; - if (maskElement->maskContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) { - AffineTransform transform; - transform.translate(objectBoundingBox.x(), objectBoundingBox.y()); - transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height()); - maskRect = transform.mapRect(maskRect); - } - - maskRect.intersect(maskBoundaries); - return maskRect; -} - -} - -#endif // ENABLE(SVG) |