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e0fd75b5ab
This caused us to lose our gn check certification. :( Turns out gn check was just ignoring all the header paths it didn't understand and so gn check passing for sky wasn't meaning much. I tried to straighten out some of the mess in this CL, but its going to take several more rounds of massaging before gn check passes again. On the bright side (almost) all of our headers are absolute now. Turns out my script (attached to the bug) didn't notice ../ includes but I'll fix that in the next patch. R=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/746023002
113 lines
4.5 KiB
C++
113 lines
4.5 KiB
C++
/*
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* Copyright (C) 2011 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/config.h"
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#include "sky/engine/platform/graphics/CrossfadeGeneratedImage.h"
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#include "sky/engine/platform/geometry/FloatRect.h"
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#include "sky/engine/platform/graphics/GraphicsContextStateSaver.h"
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#include "sky/engine/platform/graphics/ImageBuffer.h"
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namespace blink {
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CrossfadeGeneratedImage::CrossfadeGeneratedImage(Image* fromImage, Image* toImage, float percentage, IntSize crossfadeSize, const IntSize& size)
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: m_fromImage(fromImage)
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, m_toImage(toImage)
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, m_percentage(percentage)
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, m_crossfadeSize(crossfadeSize)
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{
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m_size = size;
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}
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void CrossfadeGeneratedImage::drawCrossfade(GraphicsContext* context)
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{
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float inversePercentage = 1 - m_percentage;
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IntSize fromImageSize = m_fromImage->size();
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IntSize toImageSize = m_toImage->size();
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// Draw nothing if either of the images hasn't loaded yet.
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if (m_fromImage == Image::nullImage() || m_toImage == Image::nullImage())
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return;
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GraphicsContextStateSaver stateSaver(*context);
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context->clip(IntRect(IntPoint(), m_crossfadeSize));
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context->beginTransparencyLayer(1);
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// Draw the image we're fading away from.
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context->save();
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if (m_crossfadeSize != fromImageSize) {
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context->scale(
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static_cast<float>(m_crossfadeSize.width()) / fromImageSize.width(),
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static_cast<float>(m_crossfadeSize.height()) / fromImageSize.height());
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}
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context->setAlphaAsFloat(inversePercentage);
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context->drawImage(m_fromImage, IntPoint());
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context->restore();
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// Draw the image we're fading towards.
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context->save();
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if (m_crossfadeSize != toImageSize) {
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context->scale(
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static_cast<float>(m_crossfadeSize.width()) / toImageSize.width(),
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static_cast<float>(m_crossfadeSize.height()) / toImageSize.height());
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}
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context->setAlphaAsFloat(m_percentage);
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context->drawImage(m_toImage, IntPoint(), CompositePlusLighter);
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context->restore();
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context->endLayer();
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}
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void CrossfadeGeneratedImage::draw(GraphicsContext* context, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator compositeOp, WebBlendMode blendMode)
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{
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GraphicsContextStateSaver stateSaver(*context);
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context->setCompositeOperation(compositeOp, blendMode);
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context->clip(dstRect);
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context->translate(dstRect.x(), dstRect.y());
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if (dstRect.size() != srcRect.size())
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context->scale(dstRect.width() / srcRect.width(), dstRect.height() / srcRect.height());
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context->translate(-srcRect.x(), -srcRect.y());
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drawCrossfade(context);
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}
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void CrossfadeGeneratedImage::drawPattern(GraphicsContext* context, const FloatRect& srcRect, const FloatSize& scale, const FloatPoint& phase, CompositeOperator compositeOp, const FloatRect& dstRect, WebBlendMode blendMode, const IntSize& repeatSpacing)
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{
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OwnPtr<ImageBuffer> imageBuffer = context->createRasterBuffer(m_size);
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if (!imageBuffer)
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return;
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// Fill with the cross-faded image.
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GraphicsContext* graphicsContext = imageBuffer->context();
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drawCrossfade(graphicsContext);
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// Tile the image buffer into the context.
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imageBuffer->drawPattern(context, srcRect, scale, phase, compositeOp, dstRect, blendMode, repeatSpacing);
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}
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} // namespace blink
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