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https://github.com/fergalmoran/ladybird.git
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8a7cd8055f
This change is a preparation before introducing Skia painter in an upcoming change. It's needed because Skia does not have an API to implement ClearClipRect command. It only allows to return previous clip rect by popping from its internal state stack. A bit more context: initially we had save and restore commands, but their frequent use led to many reallocations of vector during painting commands recording. To resolve this, we switched to SegmentedVector to store commands list, which allows fast appends. Now, having many save and restore commands no longer causes noticeable performance issue.
87 lines
3.8 KiB
C++
87 lines
3.8 KiB
C++
/*
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* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/MaybeOwned.h>
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#include <LibGfx/ScalingMode.h>
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#include <LibWeb/Painting/AffineCommandExecutorCPU.h>
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#include <LibWeb/Painting/RecordingPainter.h>
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namespace Web::Painting {
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class CommandExecutorCPU : public CommandExecutor {
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public:
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CommandResult draw_glyph_run(DrawGlyphRun const&) override;
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CommandResult draw_text(DrawText const&) override;
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CommandResult fill_rect(FillRect const&) override;
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CommandResult draw_scaled_bitmap(DrawScaledBitmap const&) override;
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CommandResult draw_scaled_immutable_bitmap(DrawScaledImmutableBitmap const&) override;
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CommandResult save(Save const&) override;
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CommandResult restore(Restore const&) override;
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CommandResult add_clip_rect(AddClipRect const&) override;
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CommandResult push_stacking_context(PushStackingContext const&) override;
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CommandResult pop_stacking_context(PopStackingContext const&) override;
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CommandResult paint_linear_gradient(PaintLinearGradient const&) override;
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CommandResult paint_outer_box_shadow(PaintOuterBoxShadow const&) override;
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CommandResult paint_inner_box_shadow(PaintInnerBoxShadow const&) override;
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CommandResult paint_text_shadow(PaintTextShadow const&) override;
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CommandResult fill_rect_with_rounded_corners(FillRectWithRoundedCorners const&) override;
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CommandResult fill_path_using_color(FillPathUsingColor const&) override;
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CommandResult fill_path_using_paint_style(FillPathUsingPaintStyle const&) override;
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CommandResult stroke_path_using_color(StrokePathUsingColor const&) override;
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CommandResult stroke_path_using_paint_style(StrokePathUsingPaintStyle const&) override;
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CommandResult draw_ellipse(DrawEllipse const&) override;
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CommandResult fill_ellipse(FillEllipse const&) override;
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CommandResult draw_line(DrawLine const&) override;
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CommandResult apply_backdrop_filter(ApplyBackdropFilter const&) override;
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CommandResult draw_rect(DrawRect const&) override;
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CommandResult paint_radial_gradient(PaintRadialGradient const&) override;
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CommandResult paint_conic_gradient(PaintConicGradient const&) override;
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CommandResult draw_triangle_wave(DrawTriangleWave const&) override;
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CommandResult sample_under_corners(SampleUnderCorners const&) override;
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CommandResult blit_corner_clipping(BlitCornerClipping const&) override;
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bool would_be_fully_clipped_by_painter(Gfx::IntRect) const override;
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bool needs_prepare_glyphs_texture() const override { return false; }
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void prepare_glyph_texture(HashMap<Gfx::Font const*, HashTable<u32>> const&) override {};
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virtual void prepare_to_execute(size_t corner_clip_max_depth) override;
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bool needs_update_immutable_bitmap_texture_cache() const override { return false; }
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void update_immutable_bitmap_texture_cache(HashMap<u32, Gfx::ImmutableBitmap const*>&) override {};
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CommandExecutorCPU(Gfx::Bitmap& bitmap, bool enable_affine_command_executor = false);
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CommandExecutor& nested_executor() override
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{
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return *m_affine_command_executor;
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}
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private:
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Gfx::Bitmap& m_target_bitmap;
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bool m_enable_affine_command_executor { false };
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Vector<RefPtr<BorderRadiusCornerClipper>> m_corner_clippers_stack;
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struct StackingContext {
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MaybeOwned<Gfx::Painter> painter;
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float opacity;
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Gfx::IntRect destination;
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Gfx::ScalingMode scaling_mode;
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Optional<StackingContextMask> mask = {};
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};
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[[nodiscard]] Gfx::Painter const& painter() const { return *stacking_contexts.last().painter; }
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[[nodiscard]] Gfx::Painter& painter() { return *stacking_contexts.last().painter; }
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Vector<StackingContext> stacking_contexts;
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Optional<AffineCommandExecutorCPU> m_affine_command_executor;
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};
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}
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