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LibWeb: Share decoded images at the Resource level :^)

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This patch adds ImageResource as a subclass of Resource. This new class
also keeps a Gfx::ImageDecoder so that we can share decoded bitmaps
between all clients of an image resource inside LibWeb.

With this, we now share both encoded and decoded data for images. :^)

I had to change how the purgeable-volatile flag is updated to keep the
volatile-images-outside-the-visible-viewport optimization working.
HTMLImageElement now inherits from ImageResourceClient (a subclass of
ResourceClient with additional image-specific stuff) and informs its
ImageResource about whether it's inside the viewport or outside.

This is pretty awesome! :^)
This commit is contained in:
Andreas Kling 2020-06-02 20:27:26 +02:00
parent 1c6e4e04a8
commit d4ddb0013c
14 changed files with 200 additions and 30 deletions
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2
Libraries/LibWeb/CSS/StyleValue.cpp
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@ -293,7 +293,7 @@ ImageStyleValue::ImageStyleValue(const URL& url, Document& document)
{
LoadRequest request;
request.set_url(url);
set_resource(ResourceLoader::the().load_resource(request));
set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
}
void ImageStyleValue::resource_did_load()