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ladybird/Libraries/LibWeb/Painting/GradientPainting.h

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LibWeb: Add GradientPainting for painting linear-gradients This implements support for painting linear-gradients in a spec correct way :^). Right now it supports: - Multi-stop gradients - Color stop fixups - Using pre-multiplied alpha mixing when required - Painting gradients at arbitrary angles It still needs to support: - Transition hints - Double position color stops However what is implemented now seems to be accurate to other browsers, and covers the most common use cases.
2022-07-17 19:47:43 +01:00
/*
LibWeb+LibGfx: Migrate (most of) the CSS gradient painting to LibGfx This moves the CSS gradient painting to the painter creating: - Painter::fill_rect_with_linear_gradient() - Painter::fill_rect_with_conic_gradient() - Painter::fill_rect_with_radial_gradient() This has a few benefits: - The gradients can now easily respect the painter scale - The Painter::fill_pixels() escape hatch can be removed - We can remove the old fixed color stop gradient code - The old functions are now just a shim - Anywhere can now easily use this gradient painting code! This only leaves the color stop resolution in LibWeb (which is fine). Just means in LibGfx you have to actually specify color stop positions. (Also while here add a small optimization to avoid generating excessively long gradient lines)
2023-01-10 01:07:06 +00:00
* Copyright (c) 2023, MacDue <macdue@dueutil.tech>
LibWeb: Add GradientPainting for painting linear-gradients This implements support for painting linear-gradients in a spec correct way :^). Right now it supports: - Multi-stop gradients - Color stop fixups - Using pre-multiplied alpha mixing when required - Painting gradients at arbitrary angles It still needs to support: - Transition hints - Double position color stops However what is implemented now seems to be accurate to other browsers, and covers the most common use cases.
2022-07-17 19:47:43 +01:00
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Span.h>
#include <AK/Vector.h>
#include <LibGfx/Color.h>
LibJS+LibWeb: Add a bunch of missing includes
2023-02-25 10:42:45 -07:00
#include <LibGfx/Gradients.h>
LibWeb: Add GradientPainting for painting linear-gradients This implements support for painting linear-gradients in a spec correct way :^). Right now it supports: - Multi-stop gradients - Color stop fixups - Using pre-multiplied alpha mixing when required - Painting gradients at arbitrary angles It still needs to support: - Transition hints - Double position color stops However what is implemented now seems to be accurate to other browsers, and covers the most common use cases.
2022-07-17 19:47:43 +01:00
#include <LibWeb/Forward.h>
LibWeb: Introduce RecordingPainter to serialize painting commands This modification introduces a new layer to the painting process. The stacking context traversal no longer immediately calls the Gfx::Painter methods. Instead, it writes serialized painting commands into newly introduced RecordingPainter. Created list of commands is executed later to produce resulting bitmap. Producing painting command list will make it easier to add new optimizations: - It's simpler to check if the painting result is not visible in the viewport at the command level rather than during stacking context traversal. - Run painting in a separate thread. The painting thread can process serialized painting commands, while the main thread can work on the next paintable tree and safely invalidate the previous one. - As we consider GPU-accelerated painting support, it would be easier to back each painting command rather than constructing an alternative for the entire Gfx::Painter API.
2023-10-15 04:27:48 +02:00
#include <LibWeb/Painting/GradientData.h>
LibWeb: Add GradientPainting for painting linear-gradients This implements support for painting linear-gradients in a spec correct way :^). Right now it supports: - Multi-stop gradients - Color stop fixups - Using pre-multiplied alpha mixing when required - Painting gradients at arbitrary angles It still needs to support: - Transition hints - Double position color stops However what is implemented now seems to be accurate to other browsers, and covers the most common use cases.
2022-07-17 19:47:43 +01:00
#include <LibWeb/Painting/PaintContext.h>
namespace Web::Painting {
LibWeb: Only require NodeWithStyle for gradient size resolution None of the code here actually needs a NodeWithStyleAndBoxModelMetrics, and we'll need to be able to resolve images from inside NodeWithStyle::apply_style().
2025-02-18 16:13:37 +00:00
LinearGradientData resolve_linear_gradient_data(Layout::NodeWithStyle const&, CSSPixelSize, CSS::LinearGradientStyleValue const&);
ConicGradientData resolve_conic_gradient_data(Layout::NodeWithStyle const&, CSS::ConicGradientStyleValue const&);
RadialGradientData resolve_radial_gradient_data(Layout::NodeWithStyle const&, CSSPixelSize, CSS::RadialGradientStyleValue const&);
LibWeb: Add GradientPainting for painting linear-gradients This implements support for painting linear-gradients in a spec correct way :^). Right now it supports: - Multi-stop gradients - Color stop fixups - Using pre-multiplied alpha mixing when required - Painting gradients at arbitrary angles It still needs to support: - Transition hints - Double position color stops However what is implemented now seems to be accurate to other browsers, and covers the most common use cases.
2022-07-17 19:47:43 +01:00
}
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