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| 1 /* | 1 /* |
| 2 * Copyright (C) 2008, 2009, 2010, 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2008, 2009, 2010, 2012 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| (...skipping 14 matching lines...) Expand all Loading... |
| 25 | 25 |
| 26 #include "config.h" | 26 #include "config.h" |
| 27 #include "core/platform/graphics/GeneratorGeneratedImage.h" | 27 #include "core/platform/graphics/GeneratorGeneratedImage.h" |
| 28 | 28 |
| 29 #include "core/platform/PlatformMemoryInstrumentation.h" | 29 #include "core/platform/PlatformMemoryInstrumentation.h" |
| 30 #include "core/platform/graphics/FloatRect.h" | 30 #include "core/platform/graphics/FloatRect.h" |
| 31 #include "core/platform/graphics/GraphicsContextStateSaver.h" | 31 #include "core/platform/graphics/GraphicsContextStateSaver.h" |
| 32 | 32 |
| 33 namespace WebCore { | 33 namespace WebCore { |
| 34 | 34 |
| 35 void GeneratorGeneratedImage::draw(GraphicsContext* destContext, const FloatRect
& destRect, const FloatRect& srcRect, ColorSpace, CompositeOperator compositeOp,
BlendMode) | 35 void GeneratorGeneratedImage::draw(GraphicsContext* destContext, const FloatRect
& destRect, const FloatRect& srcRect, CompositeOperator compositeOp, BlendMode) |
| 36 { | 36 { |
| 37 GraphicsContextStateSaver stateSaver(*destContext); | 37 GraphicsContextStateSaver stateSaver(*destContext); |
| 38 destContext->setCompositeOperation(compositeOp); | 38 destContext->setCompositeOperation(compositeOp); |
| 39 destContext->clip(destRect); | 39 destContext->clip(destRect); |
| 40 destContext->translate(destRect.x(), destRect.y()); | 40 destContext->translate(destRect.x(), destRect.y()); |
| 41 if (destRect.size() != srcRect.size()) | 41 if (destRect.size() != srcRect.size()) |
| 42 destContext->scale(FloatSize(destRect.width() / srcRect.width(), destRec
t.height() / srcRect.height())); | 42 destContext->scale(FloatSize(destRect.width() / srcRect.width(), destRec
t.height() / srcRect.height())); |
| 43 destContext->translate(-srcRect.x(), -srcRect.y()); | 43 destContext->translate(-srcRect.x(), -srcRect.y()); |
| 44 destContext->fillRect(FloatRect(FloatPoint(), m_size), *m_gradient.get()); | 44 destContext->fillRect(FloatRect(FloatPoint(), m_size), *m_gradient.get()); |
| 45 } | 45 } |
| 46 | 46 |
| 47 void GeneratorGeneratedImage::drawPattern(GraphicsContext* destContext, const Fl
oatRect& srcRect, const AffineTransform& patternTransform, | 47 void GeneratorGeneratedImage::drawPattern(GraphicsContext* destContext, const Fl
oatRect& srcRect, const AffineTransform& patternTransform, |
| 48 const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator compo
siteOp, const FloatRect& destRect, BlendMode) | 48 const FloatPoint& phase, CompositeOperator compositeOp, const FloatRect& des
tRect, BlendMode) |
| 49 { | 49 { |
| 50 // Allow the generator to provide visually-equivalent tiling parameters for
better performance. | 50 // Allow the generator to provide visually-equivalent tiling parameters for
better performance. |
| 51 IntSize adjustedSize = m_size; | 51 IntSize adjustedSize = m_size; |
| 52 FloatRect adjustedSrcRect = srcRect; | 52 FloatRect adjustedSrcRect = srcRect; |
| 53 m_gradient->adjustParametersForTiledDrawing(adjustedSize, adjustedSrcRect); | 53 m_gradient->adjustParametersForTiledDrawing(adjustedSize, adjustedSrcRect); |
| 54 | 54 |
| 55 // Factor in the destination context's scale to generate at the best resolut
ion | 55 // Factor in the destination context's scale to generate at the best resolut
ion |
| 56 AffineTransform destContextCTM = destContext->getCTM(GraphicsContext::Defini
telyIncludeDeviceScale); | 56 AffineTransform destContextCTM = destContext->getCTM(GraphicsContext::Defini
telyIncludeDeviceScale); |
| 57 double xScale = fabs(destContextCTM.xScale()); | 57 double xScale = fabs(destContextCTM.xScale()); |
| 58 double yScale = fabs(destContextCTM.yScale()); | 58 double yScale = fabs(destContextCTM.yScale()); |
| 59 AffineTransform adjustedPatternCTM = patternTransform; | 59 AffineTransform adjustedPatternCTM = patternTransform; |
| 60 adjustedPatternCTM.scale(1.0 / xScale, 1.0 / yScale); | 60 adjustedPatternCTM.scale(1.0 / xScale, 1.0 / yScale); |
| 61 adjustedSrcRect.scale(xScale, yScale); | 61 adjustedSrcRect.scale(xScale, yScale); |
| 62 | 62 |
| 63 unsigned generatorHash = m_gradient->hash(); | 63 unsigned generatorHash = m_gradient->hash(); |
| 64 | 64 |
| 65 if (!m_cachedImageBuffer || m_cachedGeneratorHash != generatorHash || m_cach
edAdjustedSize != adjustedSize || !destContext->isCompatibleWithBuffer(m_cachedI
mageBuffer.get())) { | 65 if (!m_cachedImageBuffer || m_cachedGeneratorHash != generatorHash || m_cach
edAdjustedSize != adjustedSize || !destContext->isCompatibleWithBuffer(m_cachedI
mageBuffer.get())) { |
| 66 m_cachedImageBuffer = destContext->createCompatibleBuffer(adjustedSize,
m_gradient->hasAlpha()); | 66 m_cachedImageBuffer = destContext->createCompatibleBuffer(adjustedSize,
m_gradient->hasAlpha()); |
| 67 if (!m_cachedImageBuffer) | 67 if (!m_cachedImageBuffer) |
| 68 return; | 68 return; |
| 69 | 69 |
| 70 // Fill with the generated image. | 70 // Fill with the generated image. |
| 71 m_cachedImageBuffer->context()->fillRect(FloatRect(FloatPoint(), adjuste
dSize), *m_gradient); | 71 m_cachedImageBuffer->context()->fillRect(FloatRect(FloatPoint(), adjuste
dSize), *m_gradient); |
| 72 | 72 |
| 73 m_cachedGeneratorHash = generatorHash; | 73 m_cachedGeneratorHash = generatorHash; |
| 74 m_cachedAdjustedSize = adjustedSize; | 74 m_cachedAdjustedSize = adjustedSize; |
| 75 } | 75 } |
| 76 | 76 |
| 77 // Tile the image buffer into the context. | 77 // Tile the image buffer into the context. |
| 78 m_cachedImageBuffer->drawPattern(destContext, adjustedSrcRect, adjustedPatte
rnCTM, phase, styleColorSpace, compositeOp, destRect); | 78 m_cachedImageBuffer->drawPattern(destContext, adjustedSrcRect, adjustedPatte
rnCTM, phase, compositeOp, destRect); |
| 79 m_cacheTimer.restart(); | 79 m_cacheTimer.restart(); |
| 80 } | 80 } |
| 81 | 81 |
| 82 void GeneratorGeneratedImage::invalidateCacheTimerFired(DeferrableOneShotTimer<G
eneratorGeneratedImage>*) | 82 void GeneratorGeneratedImage::invalidateCacheTimerFired(DeferrableOneShotTimer<G
eneratorGeneratedImage>*) |
| 83 { | 83 { |
| 84 m_cachedImageBuffer.clear(); | 84 m_cachedImageBuffer.clear(); |
| 85 m_cachedAdjustedSize = IntSize(); | 85 m_cachedAdjustedSize = IntSize(); |
| 86 } | 86 } |
| 87 | 87 |
| 88 void GeneratorGeneratedImage::reportMemoryUsage(MemoryObjectInfo* memoryObjectIn
fo) const | 88 void GeneratorGeneratedImage::reportMemoryUsage(MemoryObjectInfo* memoryObjectIn
fo) const |
| 89 { | 89 { |
| 90 MemoryClassInfo info(memoryObjectInfo, this, PlatformMemoryTypes::Image); | 90 MemoryClassInfo info(memoryObjectInfo, this, PlatformMemoryTypes::Image); |
| 91 GeneratedImage::reportMemoryUsage(memoryObjectInfo); | 91 GeneratedImage::reportMemoryUsage(memoryObjectInfo); |
| 92 info.addMember(m_gradient, "gradient"); | 92 info.addMember(m_gradient, "gradient"); |
| 93 info.addMember(m_cachedImageBuffer, "cachedImageBuffer"); | 93 info.addMember(m_cachedImageBuffer, "cachedImageBuffer"); |
| 94 info.addMember(m_cacheTimer, "cacheTimer"); | 94 info.addMember(m_cacheTimer, "cacheTimer"); |
| 95 } | 95 } |
| 96 | 96 |
| 97 } | 97 } |
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