Merge image sizing algorithms

third_party/WebKit/Source/core/css/CSSCrossfadeValue.cpp

 /*
  * Copyright (C) 2011 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 141 matching lines @@
 {
     RefPtrWillBeRawPtr<CSSValue> fromValue = m_fromValue;
     if (m_fromValue->isImageValue())
         fromValue = toCSSImageValue(*m_fromValue).valueWithURLMadeAbsolute();
     RefPtrWillBeRawPtr<CSSValue> toValue = m_toValue;
     if (m_toValue->isImageValue())
         toValue = toCSSImageValue(*m_toValue).valueWithURLMadeAbsolute();
     return CSSCrossfadeValue::create(fromValue.release(), toValue.release(), m_percentageValue);
 }
 
-IntSize CSSCrossfadeValue::fixedSize(const LayoutObject* layoutObject)
+IntSize CSSCrossfadeValue::fixedSize(const LayoutObject* layoutObject, const FloatSize& defaultObjectSize)
 {
     Image* fromImage = renderableImageForCSSValue(m_fromValue.get(), layoutObject);
     Image* toImage = renderableImageForCSSValue(m_toValue.get(), layoutObject);
 
     if (!fromImage || !toImage)
         return IntSize();
 
     IntSize fromImageSize = fromImage->size();
     IntSize toImageSize = toImage->size();
 
+    if (fromImage->isSVGImage())
+        fromImageSize = roundedIntSize(toSVGImage(fromImage)->calculateConcreteObjectSize(defaultObjectSize));
+
+    if (toImage->isSVGImage())
+        toImageSize = roundedIntSize(toSVGImage(toImage)->calculateConcreteObjectSize(defaultObjectSize));
+
     // Rounding issues can cause transitions between images of equal size to return
     // a different fixed size; avoid performing the interpolation if the images are the same size.
     if (fromImageSize == toImageSize)
         return fromImageSize;
 
     float percentage = m_percentageValue->getFloatValue();
     float inversePercentage = 1 - percentage;
 
     return IntSize(fromImageSize.width() * inversePercentage + toImageSize.width() * percentage,
         fromImageSize.height() * inversePercentage + toImageSize.height() * percentage);
@@ skipping 47 matching lines @@
 
     RefPtr<Image> fromImageRef(fromImage);
     RefPtr<Image> toImageRef(toImage);
 
     if (fromImage->isSVGImage())
         fromImageRef = SVGImageForContainer::create(toSVGImage(fromImage), size, 1, urlForCSSValue(m_fromValue.get()));
 
     if (toImage->isSVGImage())
         toImageRef = SVGImageForContainer::create(toSVGImage(toImage), size, 1, urlForCSSValue(m_toValue.get()));
 
-    m_generatedImage = CrossfadeGeneratedImage::create(fromImageRef, toImageRef, m_percentageValue->getFloatValue(), fixedSize(layoutObject), size);
+    m_generatedImage = CrossfadeGeneratedImage::create(fromImageRef, toImageRef, m_percentageValue->getFloatValue(), fixedSize(layoutObject, FloatSize(size)), size);
 
     return m_generatedImage.release();
 }
 
 void CSSCrossfadeValue::crossfadeChanged(const IntRect&)
 {
     for (const auto& curr : clients()) {
         LayoutObject* client = const_cast<LayoutObject*>(curr.key);
         client->imageChanged(static_cast<WrappedImagePtr>(this));
     }
@@ skipping 26 matching lines @@
     visitor->trace(m_fromValue);
     visitor->trace(m_toValue);
     visitor->trace(m_percentageValue);
     visitor->trace(m_cachedFromImage);
     visitor->trace(m_cachedToImage);
     visitor->trace(m_crossfadeSubimageObserver);
     CSSImageGeneratorValue::traceAfterDispatch(visitor);
 }
 
 } // namespace blink