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https://github.com/RGBCube/serenity
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063e66cae9
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.
883 lines
31 KiB
C++
883 lines
31 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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#include <LibGfx/Filters/StackBlurFilter.h>
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#include <LibGfx/StylePainter.h>
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#include <LibWeb/Painting/BorderRadiusCornerClipper.h>
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#include <LibWeb/Painting/FilterPainting.h>
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#include <LibWeb/Painting/RecordingPainter.h>
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#include <LibWeb/Painting/ShadowPainting.h>
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namespace Web::Painting {
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struct CommandExecutionState {
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struct StackingContext {
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Gfx::Painter painter;
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Gfx::IntRect destination;
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float opacity;
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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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[[nodiscard]] bool would_be_fully_clipped_by_painter(Gfx::IntRect rect) const
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{
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return !painter().clip_rect().intersects(rect.translated(painter().translation()));
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}
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Vector<StackingContext> stacking_contexts;
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};
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CommandResult ClearRect::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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state.painter().clear_rect(rect, color);
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return CommandResult::Continue;
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}
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CommandResult FillRectWithRoundedCorners::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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;
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auto& painter = state.painter();
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Gfx::AntiAliasingPainter aa_painter(painter);
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if (aa_translation.has_value())
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aa_painter.translate(*aa_translation);
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aa_painter.fill_rect_with_rounded_corners(
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rect,
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color,
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top_left_radius,
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top_right_radius,
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bottom_right_radius,
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bottom_left_radius);
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return CommandResult::Continue;
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}
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CommandResult DrawText::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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;
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auto& painter = state.painter();
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if (font.has_value()) {
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painter.draw_text(rect, raw_text, *font, alignment, color, elision, wrapping);
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} else {
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painter.draw_text(rect, raw_text, alignment, color, elision, wrapping);
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}
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return CommandResult::Continue;
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}
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CommandResult DrawTextRun::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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;
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auto& painter = state.painter();
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painter.draw_text_run(baseline_start, Utf8View(string), font, color);
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return CommandResult::Continue;
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}
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CommandResult FillPathUsingColor::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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Gfx::AntiAliasingPainter aa_painter(painter);
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if (aa_translation.has_value())
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aa_painter.translate(*aa_translation);
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aa_painter.fill_path(path, color, winding_rule);
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return CommandResult::Continue;
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}
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CommandResult FillPathUsingPaintStyle::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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Gfx::AntiAliasingPainter aa_painter(painter);
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if (aa_translation.has_value())
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aa_painter.translate(*aa_translation);
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aa_painter.fill_path(path, paint_style, opacity, winding_rule);
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return CommandResult::Continue;
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}
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CommandResult StrokePathUsingColor::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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Gfx::AntiAliasingPainter aa_painter(painter);
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if (aa_translation.has_value())
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aa_painter.translate(*aa_translation);
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aa_painter.stroke_path(path, color, thickness);
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return CommandResult::Continue;
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}
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CommandResult StrokePathUsingPaintStyle::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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Gfx::AntiAliasingPainter aa_painter(painter);
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if (aa_translation.has_value())
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aa_painter.translate(*aa_translation);
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aa_painter.stroke_path(path, paint_style, thickness, opacity);
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return CommandResult::Continue;
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}
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CommandResult FillRect::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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auto& painter = state.painter();
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painter.fill_rect(rect, color);
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return CommandResult::Continue;
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}
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CommandResult DrawScaledBitmap::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(dst_rect))
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return CommandResult::Continue;
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auto& painter = state.painter();
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painter.draw_scaled_bitmap(dst_rect, bitmap, src_rect, opacity, scaling_mode);
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return CommandResult::Continue;
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}
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CommandResult Translate::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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painter.translate(translation_delta);
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return CommandResult::Continue;
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}
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CommandResult SaveState::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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painter.save();
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return CommandResult::Continue;
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}
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CommandResult RestoreState::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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painter.restore();
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return CommandResult::Continue;
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}
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CommandResult AddClipRect::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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painter.add_clip_rect(rect);
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return CommandResult::Continue;
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}
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CommandResult ClearClipRect::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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painter.clear_clip_rect();
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return CommandResult::Continue;
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}
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CommandResult SetFont::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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painter.set_font(font);
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return CommandResult::Continue;
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}
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CommandResult PushStackingContext::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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if (has_fixed_position) {
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painter.translate(-painter.translation());
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}
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if (semitransparent_or_has_non_identity_transform) {
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auto destination_rect = transformed_destination_rect.to_rounded<int>();
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// FIXME: We should find a way to scale the paintable, rather than paint into a separate bitmap,
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// then scale it. This snippet now copies the background at the destination, then scales it down/up
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// to the size of the source (which could add some artefacts, though just scaling the bitmap already does that).
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// We need to copy the background at the destination because a bunch of our rendering effects now rely on
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// being able to sample the painter (see border radii, shadows, filters, etc).
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Gfx::FloatPoint destination_clipped_fixup {};
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auto try_get_scaled_destination_bitmap = [&]() -> ErrorOr<NonnullRefPtr<Gfx::Bitmap>> {
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Gfx::IntRect actual_destination_rect;
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auto bitmap = TRY(painter.get_region_bitmap(destination_rect, Gfx::BitmapFormat::BGRA8888, actual_destination_rect));
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// get_region_bitmap() may clip to a smaller region if the requested rect goes outside the painter, so we need to account for that.
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destination_clipped_fixup = Gfx::FloatPoint { destination_rect.location() - actual_destination_rect.location() };
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destination_rect = actual_destination_rect;
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if (source_rect.size() != transformed_destination_rect.size()) {
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auto sx = static_cast<float>(source_rect.width()) / transformed_destination_rect.width();
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auto sy = static_cast<float>(source_rect.height()) / transformed_destination_rect.height();
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bitmap = TRY(bitmap->scaled(sx, sy));
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destination_clipped_fixup.scale_by(sx, sy);
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}
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return bitmap;
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};
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auto bitmap_or_error = try_get_scaled_destination_bitmap();
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if (bitmap_or_error.is_error()) {
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// NOTE: If the creation of the bitmap fails, we need to skip all painting commands that belong to this stacking context.
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// We don't interrupt the execution of painting commands because get_region_bitmap() returns an error if the requested
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// region is outside of the viewport (mmap fails to allocate a zero-size region), which means we can safely proceed
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// with execution of commands outside of this stacking context.
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// FIXME: Change the get_region_bitmap() API to return ErrorOr<Optional<Bitmap>> and exit the execution of commands here
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// if we run out of memory.
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return CommandResult::SkipStackingContext;
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}
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auto bitmap = bitmap_or_error.release_value_but_fixme_should_propagate_errors();
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Gfx::Painter stacking_context_painter(bitmap);
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stacking_context_painter.translate(painter_location.to_type<int>() + destination_clipped_fixup.to_type<int>());
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state.stacking_contexts.append(CommandExecutionState::StackingContext {
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.painter = stacking_context_painter,
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.destination = destination_rect,
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.opacity = opacity,
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});
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} else {
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state.painter().save();
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}
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return CommandResult::Continue;
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}
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CommandResult PopStackingContext::execute(CommandExecutionState& state) const
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{
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if (semitransparent_or_has_non_identity_transform) {
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auto stacking_context = state.stacking_contexts.take_last();
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auto bitmap = stacking_context.painter.target();
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auto destination_rect = stacking_context.destination;
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if (destination_rect.size() == bitmap->size()) {
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state.painter().blit(destination_rect.location(), *bitmap, bitmap->rect(), stacking_context.opacity);
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} else {
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state.painter().draw_scaled_bitmap(destination_rect, *bitmap, bitmap->rect(), stacking_context.opacity, scaling_mode);
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}
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} else {
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state.painter().restore();
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}
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return CommandResult::Continue;
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}
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CommandResult PushStackingContextWithMask::execute(CommandExecutionState& state) const
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{
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auto bitmap_or_error = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRA8888, paint_rect.size().to_type<int>());
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if (bitmap_or_error.is_error())
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return CommandResult::Continue;
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;
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auto bitmap = bitmap_or_error.release_value();
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Gfx::Painter stacking_context_painter(bitmap);
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stacking_context_painter.translate(-paint_rect.location().to_type<int>());
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state.stacking_contexts.append(CommandExecutionState::StackingContext {
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.painter = stacking_context_painter,
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.destination = {},
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.opacity = 1,
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});
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return CommandResult::Continue;
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}
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CommandResult PopStackingContextWithMask::execute(CommandExecutionState& state) const
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{
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auto stacking_context = state.stacking_contexts.take_last();
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auto bitmap = stacking_context.painter.target();
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if (mask_bitmap)
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bitmap->apply_mask(*mask_bitmap, mask_kind);
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state.painter().blit(paint_rect.location().to_type<int>(), *bitmap, bitmap->rect(), opacity);
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return CommandResult::Continue;
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}
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CommandResult PaintLinearGradient::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(gradient_rect))
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return CommandResult::Continue;
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auto const& data = linear_gradient_data;
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state.painter().fill_rect_with_linear_gradient(
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gradient_rect, data.color_stops.list,
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data.gradient_angle, data.color_stops.repeat_length);
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return CommandResult::Continue;
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}
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CommandResult PaintRadialGradient::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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;
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auto& painter = state.painter();
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painter.fill_rect_with_radial_gradient(rect, radial_gradient_data.color_stops.list, center, size, radial_gradient_data.color_stops.repeat_length);
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return CommandResult::Continue;
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}
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CommandResult PaintConicGradient::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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;
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auto& painter = state.painter();
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painter.fill_rect_with_conic_gradient(rect, conic_gradient_data.color_stops.list, position, conic_gradient_data.start_angle, conic_gradient_data.color_stops.repeat_length);
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return CommandResult::Continue;
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}
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CommandResult PaintOuterBoxShadow::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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paint_outer_box_shadow(painter, outer_box_shadow_params);
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return CommandResult::Continue;
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}
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CommandResult PaintInnerBoxShadow::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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paint_inner_box_shadow(painter, outer_box_shadow_params);
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return CommandResult::Continue;
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}
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CommandResult PaintTextShadow::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(text_rect.to_type<int>()))
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return CommandResult::Continue;
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;
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// FIXME: Figure out the maximum bitmap size for all shadows and then allocate it once and reuse it?
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auto maybe_shadow_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRA8888, bounding_rect.size().to_type<int>());
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if (maybe_shadow_bitmap.is_error()) {
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dbgln("Unable to allocate temporary bitmap {} for text-shadow rendering: {}", bounding_rect.size(), maybe_shadow_bitmap.error());
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return CommandResult::Continue;
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;
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}
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auto shadow_bitmap = maybe_shadow_bitmap.release_value();
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Gfx::Painter shadow_painter { *shadow_bitmap };
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// FIXME: "Spread" the shadow somehow.
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DevicePixelPoint baseline_start(text_rect.x(), text_rect.y() + fragment_baseline);
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shadow_painter.draw_text_run(baseline_start.to_type<int>(), Utf8View(text), font, color);
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// Blur
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Gfx::StackBlurFilter filter(*shadow_bitmap);
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filter.process_rgba(blur_radius.value(), color);
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auto& painter = state.painter();
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painter.blit(draw_location.to_type<int>(), *shadow_bitmap, bounding_rect.to_type<int>());
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return CommandResult::Continue;
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}
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CommandResult DrawEllipse::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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;
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auto& painter = state.painter();
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Gfx::AntiAliasingPainter aa_painter(painter);
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aa_painter.draw_ellipse(rect, color, thickness);
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return CommandResult::Continue;
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}
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CommandResult FillElipse::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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;
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auto& painter = state.painter();
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Gfx::AntiAliasingPainter aa_painter(painter);
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aa_painter.fill_ellipse(rect, color, blend_mode);
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return CommandResult::Continue;
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}
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CommandResult DrawLine::execute(CommandExecutionState& state) const
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{
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if (style == Gfx::Painter::LineStyle::Dotted) {
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Gfx::AntiAliasingPainter aa_painter(state.painter());
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aa_painter.draw_line(from, to, color, thickness, style, alternate_color);
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} else {
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state.painter().draw_line(from, to, color, thickness, style, alternate_color);
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}
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return CommandResult::Continue;
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}
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CommandResult DrawSignedDistanceField::execute(CommandExecutionState& state) const
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{
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if (state.would_be_fully_clipped_by_painter(rect))
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return CommandResult::Continue;
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;
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auto& painter = state.painter();
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painter.draw_signed_distance_field(rect, color, sdf, smoothing);
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return CommandResult::Continue;
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}
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CommandResult PaintProgressbar::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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Gfx::StylePainter::paint_progressbar(painter, progress_rect, palette, min, max, value, text);
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Gfx::StylePainter::paint_frame(painter, frame_rect, palette, Gfx::FrameStyle::RaisedBox);
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return CommandResult::Continue;
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}
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CommandResult PaintFrame::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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Gfx::StylePainter::paint_frame(painter, rect, palette, style);
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return CommandResult::Continue;
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}
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CommandResult ApplyBackdropFilter::execute(CommandExecutionState& state) const
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{
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auto& painter = state.painter();
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// This performs the backdrop filter operation: https://drafts.fxtf.org/filter-effects-2/#backdrop-filter-operation
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// Note: The region bitmap can be smaller than the backdrop_region if it's at the edge of canvas.
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// Note: This is in DevicePixels, but we use an IntRect because `get_region_bitmap()` below writes to it.
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// FIXME: Go through the steps to find the "Backdrop Root Image"
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// https://drafts.fxtf.org/filter-effects-2/#BackdropRoot
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// 1. Copy the Backdrop Root Image into a temporary buffer, such as a raster image. Call this buffer T’.
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Gfx::IntRect actual_region {};
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auto maybe_backdrop_bitmap = painter.get_region_bitmap(backdrop_region, Gfx::BitmapFormat::BGRA8888, actual_region);
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if (actual_region.is_empty())
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return CommandResult::Continue;
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;
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if (maybe_backdrop_bitmap.is_error()) {
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dbgln("Failed get region bitmap for backdrop-filter");
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return CommandResult::Continue;
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}
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auto backdrop_bitmap = maybe_backdrop_bitmap.release_value();
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// 2. Apply the backdrop-filter’s filter operations to the entire contents of T'.
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apply_filter_list(*backdrop_bitmap, backdrop_filter.filters);
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// FIXME: 3. If element B has any transforms (between B and the Backdrop Root), apply the inverse of those transforms to the contents of T’.
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// 4. Apply a clip to the contents of T’, using the border box of element B, including border-radius if specified. Note that the children of B are not considered for the sizing or location of this clip.
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// FIXME: 5. Draw all of element B, including its background, border, and any children elements, into T’.
|
||
// FXIME: 6. If element B has any transforms, effects, or clips, apply those to T’.
|
||
|
||
// 7. Composite the contents of T’ into element B’s parent, using source-over compositing.
|
||
painter.blit(actual_region.location(), *backdrop_bitmap, backdrop_bitmap->rect());
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DrawRect::execute(CommandExecutionState& state) const
|
||
{
|
||
if (state.would_be_fully_clipped_by_painter(rect))
|
||
return CommandResult::Continue;
|
||
;
|
||
auto& painter = state.painter();
|
||
painter.draw_rect(rect, color, rough);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DrawTriangleWave::execute(CommandExecutionState& state) const
|
||
{
|
||
auto& painter = state.painter();
|
||
painter.draw_triangle_wave(p1, p2, color, amplitude, thickness);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult SampleUnderCorners::execute(CommandExecutionState& state) const
|
||
{
|
||
auto& painter = state.painter();
|
||
corner_clipper->sample_under_corners(painter);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult BlitCornerClipping::execute(CommandExecutionState& state) const
|
||
{
|
||
auto& painter = state.painter();
|
||
corner_clipper->blit_corner_clipping(painter);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
void RecordingPainter::sample_under_corners(NonnullRefPtr<BorderRadiusCornerClipper> corner_clipper)
|
||
{
|
||
push_command(SampleUnderCorners { corner_clipper });
|
||
}
|
||
|
||
void RecordingPainter::blit_corner_clipping(NonnullRefPtr<BorderRadiusCornerClipper> corner_clipper)
|
||
{
|
||
push_command(BlitCornerClipping { corner_clipper });
|
||
}
|
||
|
||
void RecordingPainter::clear_rect(Gfx::IntRect const& rect, Color color)
|
||
{
|
||
push_command(ClearRect {
|
||
.rect = rect,
|
||
.color = color,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::fill_rect(Gfx::IntRect const& rect, Color color)
|
||
{
|
||
push_command(FillRect {
|
||
.rect = rect,
|
||
.color = color,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::fill_path(FillPathUsingColorParams params)
|
||
{
|
||
push_command(FillPathUsingColor {
|
||
.path = params.path,
|
||
.color = params.color,
|
||
.winding_rule = params.winding_rule,
|
||
.aa_translation = params.translation,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::fill_path(FillPathUsingPaintStyleParams params)
|
||
{
|
||
push_command(FillPathUsingPaintStyle {
|
||
.path = params.path,
|
||
.paint_style = params.paint_style,
|
||
.winding_rule = params.winding_rule,
|
||
.opacity = params.opacity,
|
||
.aa_translation = params.translation,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::stroke_path(StrokePathUsingColorParams params)
|
||
{
|
||
push_command(StrokePathUsingColor {
|
||
.path = params.path,
|
||
.color = params.color,
|
||
.thickness = params.thickness,
|
||
.aa_translation = params.translation,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::stroke_path(StrokePathUsingPaintStyleParams params)
|
||
{
|
||
push_command(StrokePathUsingPaintStyle {
|
||
.path = params.path,
|
||
.paint_style = params.paint_style,
|
||
.thickness = params.thickness,
|
||
.aa_translation = params.translation,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::draw_ellipse(Gfx::IntRect const& a_rect, Color color, int thickness)
|
||
{
|
||
push_command(DrawEllipse {
|
||
.rect = a_rect,
|
||
.color = color,
|
||
.thickness = thickness,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::fill_ellipse(Gfx::IntRect const& a_rect, Color color, Gfx::AntiAliasingPainter::BlendMode blend_mode)
|
||
{
|
||
push_command(FillElipse {
|
||
.rect = a_rect,
|
||
.color = color,
|
||
.blend_mode = blend_mode,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::fill_rect_with_linear_gradient(Gfx::IntRect const& gradient_rect, LinearGradientData const& data)
|
||
{
|
||
push_command(PaintLinearGradient {
|
||
.gradient_rect = gradient_rect,
|
||
.linear_gradient_data = data,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::fill_rect_with_conic_gradient(Gfx::IntRect const& rect, ConicGradientData const& data, Gfx::IntPoint const& position)
|
||
{
|
||
push_command(PaintConicGradient {
|
||
.rect = rect,
|
||
.conic_gradient_data = data,
|
||
.position = position });
|
||
}
|
||
|
||
void RecordingPainter::fill_rect_with_radial_gradient(Gfx::IntRect const& rect, RadialGradientData const& data, DevicePixelPoint center, DevicePixelSize size)
|
||
{
|
||
push_command(PaintRadialGradient {
|
||
.rect = rect,
|
||
.radial_gradient_data = data,
|
||
.center = center.to_type<int>(),
|
||
.size = size.to_type<int>() });
|
||
}
|
||
|
||
void RecordingPainter::draw_rect(Gfx::IntRect const& rect, Color color, bool rough)
|
||
{
|
||
push_command(DrawRect {
|
||
.rect = rect,
|
||
.color = color,
|
||
.rough = rough });
|
||
}
|
||
|
||
void RecordingPainter::draw_scaled_bitmap(Gfx::IntRect const& dst_rect, Gfx::Bitmap const& bitmap, Gfx::IntRect const& src_rect, float opacity, Gfx::Painter::ScalingMode scaling_mode)
|
||
{
|
||
push_command(DrawScaledBitmap {
|
||
.dst_rect = dst_rect,
|
||
.bitmap = bitmap,
|
||
.src_rect = src_rect,
|
||
.opacity = opacity,
|
||
.scaling_mode = scaling_mode,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::draw_line(Gfx::IntPoint from, Gfx::IntPoint to, Color color, int thickness, Gfx::Painter::LineStyle style, Color alternate_color)
|
||
{
|
||
push_command(DrawLine {
|
||
.color = color,
|
||
.from = from,
|
||
.to = to,
|
||
.thickness = thickness,
|
||
.style = style,
|
||
.alternate_color = alternate_color,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::draw_text(Gfx::IntRect const& rect, StringView raw_text, Gfx::TextAlignment alignment, Color color, Gfx::TextElision elision, Gfx::TextWrapping wrapping)
|
||
{
|
||
push_command(DrawText {
|
||
.rect = rect,
|
||
.raw_text = String::from_utf8(raw_text).release_value_but_fixme_should_propagate_errors(),
|
||
.alignment = alignment,
|
||
.color = color,
|
||
.elision = elision,
|
||
.wrapping = wrapping,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::draw_text(Gfx::IntRect const& rect, StringView raw_text, Gfx::Font const& font, Gfx::TextAlignment alignment, Color color, Gfx::TextElision elision, Gfx::TextWrapping wrapping)
|
||
{
|
||
push_command(DrawText {
|
||
.rect = rect,
|
||
.raw_text = String::from_utf8(raw_text).release_value_but_fixme_should_propagate_errors(),
|
||
.alignment = alignment,
|
||
.color = color,
|
||
.elision = elision,
|
||
.wrapping = wrapping,
|
||
.font = font,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::draw_signed_distance_field(Gfx::IntRect const& dst_rect, Color color, Gfx::GrayscaleBitmap const& sdf, float smoothing)
|
||
{
|
||
push_command(DrawSignedDistanceField {
|
||
.rect = dst_rect,
|
||
.color = color,
|
||
.sdf = sdf,
|
||
.smoothing = smoothing,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::draw_text_run(Gfx::IntPoint baseline_start, Utf8View string, Gfx::Font const& font, Color color, Gfx::IntRect const& rect)
|
||
{
|
||
push_command(DrawTextRun {
|
||
.color = color,
|
||
.baseline_start = baseline_start,
|
||
.string = String::from_utf8(string.as_string()).release_value_but_fixme_should_propagate_errors(),
|
||
.font = font,
|
||
.rect = rect,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::add_clip_rect(Gfx::IntRect const& rect)
|
||
{
|
||
push_command(AddClipRect {
|
||
.rect = rect,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::clear_clip_rect()
|
||
{
|
||
push_command(ClearClipRect {});
|
||
}
|
||
|
||
void RecordingPainter::translate(int dx, int dy)
|
||
{
|
||
push_command(Translate {
|
||
.translation_delta = Gfx::IntPoint { dx, dy },
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::translate(Gfx::IntPoint delta)
|
||
{
|
||
push_command(Translate {
|
||
.translation_delta = delta,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::set_font(Gfx::Font const& font)
|
||
{
|
||
push_command(SetFont { .font = font });
|
||
}
|
||
|
||
void RecordingPainter::save()
|
||
{
|
||
push_command(SaveState {});
|
||
}
|
||
|
||
void RecordingPainter::restore()
|
||
{
|
||
push_command(RestoreState {});
|
||
}
|
||
|
||
void RecordingPainter::push_stacking_context(PushStackingContextParams params)
|
||
{
|
||
push_command(PushStackingContext {
|
||
.semitransparent_or_has_non_identity_transform = params.semitransparent_or_has_non_identity_transform,
|
||
.has_fixed_position = params.has_fixed_position,
|
||
.opacity = params.opacity,
|
||
.source_rect = params.source_rect,
|
||
.transformed_destination_rect = params.transformed_destination_rect,
|
||
.painter_location = params.painter_location,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::pop_stacking_context(PopStackingContextParams params)
|
||
{
|
||
push_command(PopStackingContext {
|
||
.semitransparent_or_has_non_identity_transform = params.semitransparent_or_has_non_identity_transform,
|
||
.scaling_mode = params.scaling_mode,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::paint_progressbar(Gfx::IntRect frame_rect, Gfx::IntRect progress_rect, Palette palette, int min, int max, int value, StringView text)
|
||
{
|
||
push_command(PaintProgressbar {
|
||
.frame_rect = frame_rect,
|
||
.progress_rect = progress_rect,
|
||
.palette = palette,
|
||
.min = min,
|
||
.max = max,
|
||
.value = value,
|
||
.text = text,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::paint_frame(Gfx::IntRect rect, Palette palette, Gfx::FrameStyle style)
|
||
{
|
||
push_command(PaintFrame { rect, palette, style });
|
||
}
|
||
|
||
void RecordingPainter::apply_backdrop_filter(DevicePixelRect const& backdrop_region, BorderRadiiData const& border_radii_data, CSS::ResolvedBackdropFilter const& backdrop_filter)
|
||
{
|
||
push_command(ApplyBackdropFilter {
|
||
.backdrop_region = backdrop_region.to_type<int>(),
|
||
.border_radii_data = border_radii_data,
|
||
.backdrop_filter = backdrop_filter,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::paint_outer_box_shadow_params(PaintOuterBoxShadowParams params)
|
||
{
|
||
push_command(PaintOuterBoxShadow {
|
||
.outer_box_shadow_params = params,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::paint_inner_box_shadow_params(PaintOuterBoxShadowParams params)
|
||
{
|
||
push_command(PaintInnerBoxShadow {
|
||
.outer_box_shadow_params = params,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::paint_text_shadow(DevicePixels blur_radius, DevicePixelRect bounding_rect, DevicePixelRect text_rect, Utf8View text, Gfx::Font const& font, Color color, DevicePixels fragment_baseline, DevicePixelPoint draw_location)
|
||
{
|
||
push_command(PaintTextShadow {
|
||
.blur_radius = blur_radius,
|
||
.bounding_rect = bounding_rect,
|
||
.text_rect = text_rect,
|
||
.text = String::from_utf8(text.as_string()).release_value_but_fixme_should_propagate_errors(),
|
||
.font = font,
|
||
.color = color,
|
||
.fragment_baseline = fragment_baseline,
|
||
.draw_location = draw_location });
|
||
}
|
||
|
||
void RecordingPainter::fill_rect_with_rounded_corners(Gfx::IntRect const& rect, Color color, Gfx::AntiAliasingPainter::CornerRadius top_left_radius, Gfx::AntiAliasingPainter::CornerRadius top_right_radius, Gfx::AntiAliasingPainter::CornerRadius bottom_right_radius, Gfx::AntiAliasingPainter::CornerRadius bottom_left_radius)
|
||
{
|
||
push_command(FillRectWithRoundedCorners {
|
||
.rect = rect,
|
||
.color = color,
|
||
.top_left_radius = top_left_radius,
|
||
.top_right_radius = top_right_radius,
|
||
.bottom_left_radius = bottom_left_radius,
|
||
.bottom_right_radius = bottom_right_radius,
|
||
});
|
||
}
|
||
|
||
void RecordingPainter::fill_rect_with_rounded_corners(Gfx::IntRect const& a_rect, Color color, int radius)
|
||
{
|
||
fill_rect_with_rounded_corners(a_rect, color, radius, radius, radius, radius);
|
||
}
|
||
|
||
void RecordingPainter::fill_rect_with_rounded_corners(Gfx::IntRect const& a_rect, Color color, int top_left_radius, int top_right_radius, int bottom_right_radius, int bottom_left_radius)
|
||
{
|
||
fill_rect_with_rounded_corners(a_rect, color,
|
||
{ top_left_radius, top_left_radius },
|
||
{ top_right_radius, top_right_radius },
|
||
{ bottom_right_radius, bottom_right_radius },
|
||
{ bottom_left_radius, bottom_left_radius });
|
||
}
|
||
|
||
void RecordingPainter::push_stacking_context_with_mask(DevicePixelRect paint_rect)
|
||
{
|
||
push_command(PushStackingContextWithMask { .paint_rect = paint_rect });
|
||
}
|
||
|
||
void RecordingPainter::pop_stacking_context_with_mask(RefPtr<Gfx::Bitmap> mask_bitmap, Gfx::Bitmap::MaskKind mask_kind, DevicePixelRect paint_rect, float opacity)
|
||
{
|
||
push_command(PopStackingContextWithMask {
|
||
.paint_rect = paint_rect,
|
||
.mask_bitmap = mask_bitmap,
|
||
.mask_kind = mask_kind,
|
||
.opacity = opacity });
|
||
}
|
||
|
||
void RecordingPainter::draw_triangle_wave(Gfx::IntPoint a_p1, Gfx::IntPoint a_p2, Color color, int amplitude, int thickness = 1)
|
||
{
|
||
push_command(DrawTriangleWave {
|
||
.p1 = a_p1,
|
||
.p2 = a_p2,
|
||
.color = color,
|
||
.amplitude = amplitude,
|
||
.thickness = thickness });
|
||
}
|
||
|
||
void RecordingPainter::execute(Gfx::Bitmap& bitmap)
|
||
{
|
||
CommandExecutionState state;
|
||
state.stacking_contexts.append(CommandExecutionState::StackingContext {
|
||
.painter = Gfx::Painter(bitmap),
|
||
.destination = Gfx::IntRect { 0, 0, 0, 0 },
|
||
.opacity = 1,
|
||
});
|
||
|
||
size_t next_command_index = 0;
|
||
while (next_command_index < m_painting_commands.size()) {
|
||
auto& command = m_painting_commands[next_command_index++];
|
||
auto result = command.visit([&](auto const& command) { return command.execute(state); });
|
||
|
||
if (result == CommandResult::SkipStackingContext) {
|
||
auto stacking_context_nesting_level = 1;
|
||
while (next_command_index < m_painting_commands.size()) {
|
||
if (m_painting_commands[next_command_index].has<PushStackingContext>()) {
|
||
stacking_context_nesting_level++;
|
||
} else if (m_painting_commands[next_command_index].has<PopStackingContext>()) {
|
||
stacking_context_nesting_level--;
|
||
}
|
||
|
||
next_command_index++;
|
||
|
||
if (stacking_context_nesting_level == 0)
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
VERIFY(state.stacking_contexts.size() == 1);
|
||
}
|
||
|
||
}
|