Image* CSSCrossfadeValue::image(RenderElement& renderer, const FloatSize& size)
{
if (size.isEmpty())
return nullptr;
// FIXME: Skip Content Security Policy check when cross fade is applied to an element in a user agent shadow tree.
// See <https://bugs.webkit.org/show_bug.cgi?id=146663>.
auto options = CachedResourceLoader::defaultCachedResourceOptions();
auto& cachedResourceLoader = renderer.document().cachedResourceLoader();
auto* cachedFromImage = cachedImageForCSSValue(m_fromValue, cachedResourceLoader, options);
auto* cachedToImage = cachedImageForCSSValue(m_toValue, cachedResourceLoader, options);
if (!cachedFromImage || !cachedToImage)
return Image::nullImage();
auto* fromImage = cachedFromImage->imageForRenderer(&renderer);
auto* toImage = cachedToImage->imageForRenderer(&renderer);
if (!fromImage || !toImage)
return Image::nullImage();
m_generatedImage = CrossfadeGeneratedImage::create(*fromImage, *toImage, m_percentageValue->floatValue(), fixedSize(renderer), size);
return m_generatedImage.get();
}
FloatSize CSSCrossfadeValue::fixedSize(const RenderElement& renderer)
{
float percentage = m_percentageValue->floatValue();
float inversePercentage = 1 - percentage;
// FIXME: Skip Content Security Policy check when cross fade is applied to an element in a user agent shadow tree.
// See <https://bugs.webkit.org/show_bug.cgi?id=146663>.
auto options = CachedResourceLoader::defaultCachedResourceOptions();
auto& cachedResourceLoader = renderer.document().cachedResourceLoader();
auto* cachedFromImage = cachedImageForCSSValue(m_fromValue, cachedResourceLoader, options);
auto* cachedToImage = cachedImageForCSSValue(m_toValue, cachedResourceLoader, options);
if (!cachedFromImage || !cachedToImage)
return FloatSize();
FloatSize fromImageSize = cachedFromImage->imageForRenderer(&renderer)->size();
FloatSize toImageSize = cachedToImage->imageForRenderer(&renderer)->size();
// 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;
return fromImageSize * inversePercentage + toImageSize * percentage;
}
void CSSCrossfadeValue::loadSubimages(CachedResourceLoader* cachedResourceLoader)
{
m_cachedFromImage = cachedImageForCSSValue(m_fromValue.get(), cachedResourceLoader);
m_cachedToImage = cachedImageForCSSValue(m_toValue.get(), cachedResourceLoader);
if (m_cachedFromImage)
m_cachedFromImage->addClient(&m_crossfadeSubimageObserver);
if (m_cachedToImage)
m_cachedToImage->addClient(&m_crossfadeSubimageObserver);
m_crossfadeSubimageObserver.setReady(true);
}
PassRefPtr<Image> CSSFilterImageValue::image(RenderObject* renderer, const IntSize& size)
{
if (size.isEmpty())
return 0;
CachedResourceLoader* cachedResourceLoader = renderer->document()->cachedResourceLoader();
CachedImage* cachedImage = cachedImageForCSSValue(m_imageValue.get(), cachedResourceLoader);
if (!cachedImage)
return Image::nullImage();
Image* image = cachedImage->imageForRenderer(renderer);
if (!image)
return Image::nullImage();
// Transform Image into ImageBuffer.
OwnPtr<ImageBuffer> texture = ImageBuffer::create(size);
if (!texture)
return Image::nullImage();
texture->context()->drawImage(image, ColorSpaceDeviceRGB, IntPoint());
RefPtr<FilterEffectRenderer> filterRenderer = FilterEffectRenderer::create();
filterRenderer->setSourceImage(texture.release());
filterRenderer->setSourceImageRect(FloatRect(FloatPoint(), size));
filterRenderer->setFilterRegion(FloatRect(FloatPoint(), size));
// FIXME: SVG Filter don't work at the moment.
if (!filterRenderer->build(0, m_filterOperations, true))
return Image::nullImage();
filterRenderer->apply();
m_generatedImage = filterRenderer->output()->copyImage();
return m_generatedImage.release();
}
IntSize CSSFilterImageValue::fixedSize(const RenderObject* renderer)
{
CachedResourceLoader* cachedResourceLoader = renderer->document()->cachedResourceLoader();
CachedImage* cachedImage = cachedImageForCSSValue(m_imageValue.get(), cachedResourceLoader);
if (!cachedImage)
return IntSize();
return cachedImage->imageForRenderer(renderer)->size();
}
static Image* renderableImageForCSSValue(CSSValue* value,
const LayoutObject& layoutObject) {
ImageResourceContent* cachedImage =
cachedImageForCSSValue(value, layoutObject.document());
if (!cachedImage || cachedImage->errorOccurred() ||
cachedImage->getImage()->isNull())
return nullptr;
return cachedImage->getImage();
}
PassRefPtr<Image> CSSCrossfadeValue::image(RenderObject* renderer, const IntSize& size)
{
if (size.isEmpty())
return 0;
CachedResourceLoader* cachedResourceLoader = renderer->document()->cachedResourceLoader();
CachedImage* cachedFromImage = cachedImageForCSSValue(m_fromValue.get(), cachedResourceLoader);
CachedImage* cachedToImage = cachedImageForCSSValue(m_toValue.get(), cachedResourceLoader);
if (!cachedFromImage || !cachedToImage)
return Image::nullImage();
Image* fromImage = cachedFromImage->imageForRenderer(renderer);
Image* toImage = cachedToImage->imageForRenderer(renderer);
if (!fromImage || !toImage)
return Image::nullImage();
m_generatedImage = CrossfadeGeneratedImage::create(fromImage, toImage, m_percentageValue->getFloatValue(), fixedSize(renderer), size);
return m_generatedImage.release();
}
PassRefPtr<Image> CSSCrossfadeValue::image(LayoutObject* renderer, const IntSize& size)
{
if (size.isEmpty())
return nullptr;
Document* document = &renderer->document();
ImageResource* cachedFromImage = cachedImageForCSSValue(m_fromValue.get(), document);
ImageResource* cachedToImage = cachedImageForCSSValue(m_toValue.get(), document);
if (!cachedFromImage || !cachedToImage)
return Image::nullImage();
Image* fromImage = cachedFromImage->imageForLayoutObject(renderer);
Image* toImage = cachedToImage->imageForLayoutObject(renderer);
if (!fromImage || !toImage)
return Image::nullImage();
m_generatedImage = CrossfadeGeneratedImage::create(fromImage, toImage, m_percentageValue->getFloatValue(), fixedSize(renderer), size);
return m_generatedImage.release();
}
void CSSCrossfadeValue::loadSubimages(const Document& document) {
ImageResourceContent* oldCachedFromImage = m_cachedFromImage;
ImageResourceContent* oldCachedToImage = m_cachedToImage;
m_cachedFromImage = cachedImageForCSSValue(m_fromValue.get(), document);
m_cachedToImage = cachedImageForCSSValue(m_toValue.get(), document);
if (m_cachedFromImage != oldCachedFromImage) {
if (oldCachedFromImage)
oldCachedFromImage->removeObserver(&m_crossfadeSubimageObserver);
if (m_cachedFromImage)
m_cachedFromImage->addObserver(&m_crossfadeSubimageObserver);
}
if (m_cachedToImage != oldCachedToImage) {
if (oldCachedToImage)
oldCachedToImage->removeObserver(&m_crossfadeSubimageObserver);
if (m_cachedToImage)
m_cachedToImage->addObserver(&m_crossfadeSubimageObserver);
}
m_crossfadeSubimageObserver.setReady(true);
}
IntSize CSSCrossfadeValue::fixedSize(const RenderObject* renderer)
{
float percentage = m_percentageValue->getFloatValue();
float inversePercentage = 1 - percentage;
CachedResourceLoader* cachedResourceLoader = renderer->document()->cachedResourceLoader();
CachedImage* cachedFromImage = cachedImageForCSSValue(m_fromValue.get(), cachedResourceLoader);
CachedImage* cachedToImage = cachedImageForCSSValue(m_toValue.get(), cachedResourceLoader);
if (!cachedFromImage || !cachedToImage)
return IntSize();
IntSize fromImageSize = cachedFromImage->imageForRenderer(renderer)->size();
IntSize toImageSize = cachedToImage->imageForRenderer(renderer)->size();
// 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;
return IntSize(fromImageSize.width() * inversePercentage + toImageSize.width() * percentage,
fromImageSize.height() * inversePercentage + toImageSize.height() * percentage);
}
FloatSize CSSFilterImageValue::fixedSize(const RenderElement* renderer)
{
// FIXME: Skip Content Security Policy check when filter is applied to an element in a user agent shadow tree.
// See <https://bugs.webkit.org/show_bug.cgi?id=146663>.
ResourceLoaderOptions options = CachedResourceLoader::defaultCachedResourceOptions();
CachedResourceLoader& cachedResourceLoader = renderer->document().cachedResourceLoader();
CachedImage* cachedImage = cachedImageForCSSValue(m_imageValue.get(), cachedResourceLoader, options);
if (!cachedImage)
return FloatSize();
return cachedImage->imageForRenderer(renderer)->size();
}
void CSSCrossfadeValue::loadSubimages(CachedResourceLoader* cachedResourceLoader)
{
CachedResourceHandle<CachedImage> oldCachedFromImage = m_cachedFromImage;
CachedResourceHandle<CachedImage> oldCachedToImage = m_cachedToImage;
m_cachedFromImage = cachedImageForCSSValue(m_fromValue.get(), cachedResourceLoader);
m_cachedToImage = cachedImageForCSSValue(m_toValue.get(), cachedResourceLoader);
if (m_cachedFromImage != oldCachedFromImage) {
if (oldCachedFromImage)
oldCachedFromImage->removeClient(&m_crossfadeSubimageObserver);
if (m_cachedFromImage)
m_cachedFromImage->addClient(&m_crossfadeSubimageObserver);
}
if (m_cachedToImage != oldCachedToImage) {
if (oldCachedToImage)
oldCachedToImage->removeClient(&m_crossfadeSubimageObserver);
if (m_cachedToImage)
m_cachedToImage->addClient(&m_crossfadeSubimageObserver);
}
m_crossfadeSubimageObserver.setReady(true);
}
void CSSCrossfadeValue::loadSubimages(ResourceFetcher* fetcher)
{
ResourcePtr<ImageResource> oldCachedFromImage = m_cachedFromImage;
ResourcePtr<ImageResource> oldCachedToImage = m_cachedToImage;
m_cachedFromImage = cachedImageForCSSValue(m_fromValue.get(), fetcher);
m_cachedToImage = cachedImageForCSSValue(m_toValue.get(), fetcher);
if (m_cachedFromImage != oldCachedFromImage) {
if (oldCachedFromImage)
oldCachedFromImage->removeClient(&m_crossfadeSubimageObserver);
if (m_cachedFromImage)
m_cachedFromImage->addClient(&m_crossfadeSubimageObserver);
}
if (m_cachedToImage != oldCachedToImage) {
if (oldCachedToImage)
oldCachedToImage->removeClient(&m_crossfadeSubimageObserver);
if (m_cachedToImage)
m_cachedToImage->addClient(&m_crossfadeSubimageObserver);
}
m_crossfadeSubimageObserver.setReady(true);
}
RefPtr<Image> CSSFilterImageValue::image(RenderElement* renderer, const FloatSize& size)
{
if (size.isEmpty())
return nullptr;
// FIXME: Skip Content Security Policy check when filter is applied to an element in a user agent shadow tree.
// See <https://bugs.webkit.org/show_bug.cgi?id=146663>.
ResourceLoaderOptions options = CachedResourceLoader::defaultCachedResourceOptions();
CachedResourceLoader& cachedResourceLoader = renderer->document().cachedResourceLoader();
CachedImage* cachedImage = cachedImageForCSSValue(m_imageValue.get(), cachedResourceLoader, options);
if (!cachedImage)
return Image::nullImage();
Image* image = cachedImage->imageForRenderer(renderer);
if (!image)
return Image::nullImage();
// Transform Image into ImageBuffer.
std::unique_ptr<ImageBuffer> texture = ImageBuffer::create(size);
if (!texture)
return Image::nullImage();
FloatRect imageRect = FloatRect(FloatPoint(), size);
texture->context().drawImage(image, ColorSpaceDeviceRGB, imageRect);
RefPtr<FilterEffectRenderer> filterRenderer = FilterEffectRenderer::create();
filterRenderer->setSourceImage(WTF::move(texture));
filterRenderer->setSourceImageRect(imageRect);
filterRenderer->setFilterRegion(imageRect);
if (!filterRenderer->build(renderer, m_filterOperations, FilterFunction))
return Image::nullImage();
filterRenderer->apply();
m_generatedImage = filterRenderer->output()->copyImage();
return m_generatedImage.release();
}
