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LibGfx+LibWeb: Add ImmutableBitmap for images bitmap caching in painter

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Before this change, we used Gfx::Bitmap to represent both decoded
images that are not going to be mutated and bitmaps corresponding
to canvases that could be mutated.

This change introduces a wrapper for bitmaps that are not going to be
mutated, so the painter could do caching: texture caching in the case
of GPU painter and potentially scaled bitmap caching in the case of CPU
painter.
This commit is contained in:
Aliaksandr Kalenik 2023-11-24 14:45:45 +01:00 • committed by Andreas Kling
parent abcf71a8ca
commit f4a5c136c3
24 changed files with 146 additions and 35 deletions
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6
Userland/Libraries/LibWeb/HTML/HTMLImageElement.h
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@ -9,6 +9,7 @@
#include <AK/ByteBuffer.h>
#include <AK/OwnPtr.h>
#include <LibGfx/Forward.h>
#include <LibGfx/ImmutableBitmap.h>
#include <LibJS/Heap/HeapFunction.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/DocumentLoadEventDelayer.h>
@ -38,7 +39,8 @@ public:
DeprecatedString alt() const { return deprecated_attribute(HTML::AttributeNames::alt); }
DeprecatedString src() const { return deprecated_attribute(HTML::AttributeNames::src); }
RefPtr<Gfx::Bitmap const> bitmap() const;
RefPtr<Gfx::ImmutableBitmap> immutable_bitmap() const;
RefPtr<Gfx::Bitmap const> bitmap() const { return immutable_bitmap()->bitmap(); }
unsigned width() const;
WebIDL::ExceptionOr<void> set_width(unsigned);
@ -89,7 +91,7 @@ public:
virtual Optional<CSSPixels> intrinsic_width() const override;
virtual Optional<CSSPixels> intrinsic_height() const override;
virtual Optional<CSSPixelFraction> intrinsic_aspect_ratio() const override;
virtual RefPtr<Gfx::Bitmap const> current_image_bitmap(Gfx::IntSize = {}) const override;
virtual RefPtr<Gfx::ImmutableBitmap> current_image_bitmap(Gfx::IntSize = {}) const override;
virtual void set_visible_in_viewport(bool) override;
void set_lazy_load_resumption_steps(Function<void()>);