Deleted: branches/subpixellayout/Source/WebCore/rendering/svg/SVGImageBufferTools.cpp (112329 => 112330)
--- branches/subpixellayout/Source/WebCore/rendering/svg/SVGImageBufferTools.cpp 2012-03-27 23:21:14 UTC (rev 112329)
+++ branches/subpixellayout/Source/WebCore/rendering/svg/SVGImageBufferTools.cpp 2012-03-27 23:25:25 UTC (rev 112330)
@@ -1,165 +0,0 @@
-/*
- * Copyright (C) Research In Motion Limited 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 "SVGImageBufferTools.h"
-
-#include "FrameView.h"
-#include "GraphicsContext.h"
-#include "RenderObject.h"
-#include "RenderSVGContainer.h"
-#include "RenderSVGRoot.h"
-
-static int kMaxImageBufferSize = 4096;
-
-namespace WebCore {
-
-static AffineTransform& currentContentTransformation()
-{
- DEFINE_STATIC_LOCAL(AffineTransform, s_currentContentTransformation, ());
- return s_currentContentTransformation;
-}
-
-void SVGImageBufferTools::calculateTransformationToOutermostSVGCoordinateSystem(const RenderObject* renderer, AffineTransform& absoluteTransform)
-{
- const RenderObject* current = renderer;
- ASSERT(current);
-
- absoluteTransform = currentContentTransformation();
- while (current) {
- absoluteTransform = current->localToParentTransform() * absoluteTransform;
- if (current->isSVGRoot())
- break;
- current = current->parent();
- }
-}
-
-bool SVGImageBufferTools::createImageBuffer(const FloatRect& targetRect, const AffineTransform& absoluteTransform, OwnPtr<ImageBuffer>& imageBuffer, ColorSpace colorSpace, RenderingMode renderingMode)
-{
- IntRect paintRect = calculateImageBufferRect(targetRect, absoluteTransform);
- // Don't create empty ImageBuffers.
- if (paintRect.isEmpty())
- return false;
-
- IntSize clampedSize = clampedAbsoluteSize(paintRect.size());
- OwnPtr<ImageBuffer> image = ImageBuffer::create(clampedSize, 1, colorSpace, renderingMode);
- if (!image)
- return false;
-
- GraphicsContext* imageContext = image->context();
- ASSERT(imageContext);
-
- // This is done in absolute coordinates.
- imageContext->translate(-paintRect.x(), -paintRect.y());
-
- imageContext->concatCTM(absoluteTransform);
-
- // This happens in local coordinates.
- imageContext->scale(FloatSize(static_cast<float>(clampedSize.width()) / paintRect.width(),
- static_cast<float>(clampedSize.height()) / paintRect.height()));
-
- imageBuffer = image.release();
- return true;
-}
-
-bool SVGImageBufferTools::createImageBufferForPattern(const FloatRect& absoluteTargetRect, const FloatRect& clampedAbsoluteTargetRect, OwnPtr<ImageBuffer>& imageBuffer, ColorSpace colorSpace, RenderingMode renderingMode)
-{
- IntSize imageSize(roundedIntSize(clampedAbsoluteTargetRect.size()));
- IntSize unclampedImageSize(roundedIntSize(absoluteTargetRect.size()));
-
- // Don't create empty ImageBuffers.
- if (imageSize.isEmpty())
- return false;
-
- OwnPtr<ImageBuffer> image = ImageBuffer::create(imageSize, 1, colorSpace, renderingMode);
- if (!image)
- return false;
-
- GraphicsContext* imageContext = image->context();
- ASSERT(imageContext);
-
- // Compensate rounding effects, as the absolute target rect is using floating-point numbers and the image buffer size is integer.
- imageContext->scale(FloatSize(unclampedImageSize.width() / absoluteTargetRect.width(), unclampedImageSize.height() / absoluteTargetRect.height()));
-
- imageBuffer = image.release();
- return true;
-}
-
-void SVGImageBufferTools::renderSubtreeToImageBuffer(ImageBuffer* image, RenderObject* item, const AffineTransform& subtreeContentTransformation)
-{
- ASSERT(item);
- ASSERT(image);
- ASSERT(image->context());
-
- PaintInfo info(image->context(), IntRect(PaintInfo::infiniteRect()), PaintPhaseForeground, 0, 0, 0, 0);
-
- AffineTransform& contentTransformation = currentContentTransformation();
- AffineTransform savedContentTransformation = contentTransformation;
- contentTransformation = subtreeContentTransformation * contentTransformation;
-
- ASSERT(!item->needsLayout());
- item->paint(info, IntPoint());
-
- contentTransformation = savedContentTransformation;
-}
-
-void SVGImageBufferTools::clipToImageBuffer(GraphicsContext* context, const AffineTransform& absoluteTransform, const FloatRect& targetRect, OwnPtr<ImageBuffer>& imageBuffer, bool safeToClear)
-{
- ASSERT(context);
- ASSERT(imageBuffer);
-
- FloatRect absoluteTargetRect = calculateImageBufferRect(targetRect, absoluteTransform);
-
- // The mask image has been created in the absolute coordinate space, as the image should not be scaled.
- // So the actual masking process has to be done in the absolute coordinate space as well.
- context->concatCTM(absoluteTransform.inverse());
- context->clipToImageBuffer(imageBuffer.get(), absoluteTargetRect);
- context->concatCTM(absoluteTransform);
-
- // When nesting resources, with objectBoundingBox as content unit types, there's no use in caching the
- // resulting image buffer as the parent resource already caches the result.
- if (safeToClear && !currentContentTransformation().isIdentity())
- imageBuffer.clear();
-}
-
-FloatRect SVGImageBufferTools::clampedAbsoluteTargetRect(const FloatRect& absoluteTargetRect)
-{
- const FloatSize maxImageBufferSize(kMaxImageBufferSize, kMaxImageBufferSize);
- return FloatRect(absoluteTargetRect.location(), absoluteTargetRect.size().shrunkTo(maxImageBufferSize));
-}
-
-IntSize SVGImageBufferTools::clampedAbsoluteSize(const IntSize& absoluteSize)
-{
- const IntSize maxImageBufferSize(kMaxImageBufferSize, kMaxImageBufferSize);
- return absoluteSize.shrunkTo(maxImageBufferSize);
-}
-
-void SVGImageBufferTools::clear2DRotation(AffineTransform& transform)
-{
- AffineTransform::DecomposedType decomposition;
- transform.decompose(decomposition);
- decomposition.angle = 0;
- transform.recompose(decomposition);
-}
-
-}
-
-#endif // ENABLE(SVG)
