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Revert "LibWeb/CSS: Implement 'background-blend-mode'"

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This reverts commit a73cd88f0c.

Emitting SaveLayer for each paintable made rasterization a lot slower
on every website because now Skia has to allocate enormous amounts of
temporary surfaces. Let's revert it for now and figure how to implement
it with less aggressive SaveLayer usage.
This commit is contained in:
Aliaksandr Kalenik 2025-03-28 13:45:50 +00:00 • committed by Alexander Kalenik
parent 2462a6b0fa
commit 552dd18696
Notes: github-actions[bot] 2025-03-28 16:49:06 +00:00
27 changed files with 199 additions and 303 deletions
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48
Libraries/LibWeb/Painting/Blending.h
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@ -1,48 +0,0 @@
/*
* Copyright (c) 2025, Glenn Skrzypczak <glenn.skrzypczak@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGfx/CompositingAndBlendingOperator.h>
#include <LibWeb/CSS/Enums.h>
namespace Web::Painting {
#define ENUMERATE_MIX_BLEND_MODES(E) \
E(Normal) \
E(Multiply) \
E(Screen) \
E(Overlay) \
E(Darken) \
E(Lighten) \
E(ColorDodge) \
E(ColorBurn) \
E(HardLight) \
E(SoftLight) \
E(Difference) \
E(Exclusion) \
E(Hue) \
E(Saturation) \
E(Color) \
E(Luminosity) \
E(PlusDarker) \
E(PlusLighter)
static Gfx::CompositingAndBlendingOperator mix_blend_mode_to_compositing_and_blending_operator(CSS::MixBlendMode blend_mode)
{
switch (blend_mode) {
#undef __ENUMERATE
#define __ENUMERATE(blend_mode) \
case CSS::MixBlendMode::blend_mode: \
return Gfx::CompositingAndBlendingOperator::blend_mode;
ENUMERATE_MIX_BLEND_MODES(__ENUMERATE)
#undef __ENUMERATE
default:
VERIFY_NOT_REACHED();
}
}
}