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LibWeb: Remove glyph run allocation in paint_text_fragment()

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Instead of allocating a new glyph run to scale glyph positions and
fonts, a scale factor could be encoded in a paint command and applied
later during command execution.
This commit is contained in:
Aliaksandr Kalenik 2024-03-01 14:14:47 +01:00 • committed by Andreas Kling
parent aeb5a0d9e8
commit cf6999f5f3
11 changed files with 25 additions and 27 deletions
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7
Userland/Libraries/LibWeb/Painting/CommandExecutorGPU.cpp
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@ -31,13 +31,16 @@ CommandExecutorGPU::~CommandExecutorGPU()
painter().flush(m_target_bitmap);
}
CommandResult CommandExecutorGPU::draw_glyph_run(Vector<Gfx::DrawGlyphOrEmoji> const& glyph_run, Color const& color, Gfx::FloatPoint translation)
CommandResult CommandExecutorGPU::draw_glyph_run(Vector<Gfx::DrawGlyphOrEmoji> const& glyph_run, Color const& color, Gfx::FloatPoint translation, double scale)
{
Vector<Gfx::DrawGlyphOrEmoji> transformed_glyph_run;
transformed_glyph_run.ensure_capacity(glyph_run.size());
for (auto& glyph : glyph_run) {
auto transformed_glyph = glyph;
transformed_glyph.visit([&](auto& glyph) { glyph.position.translate_by(translation); });
transformed_glyph.visit([&](auto& glyph) {
glyph.position = glyph.position.scaled(scale).translated(translation);
glyph.font = *glyph.font->with_size(glyph.font->point_size() * static_cast<float>(scale));
});
transformed_glyph_run.append(transformed_glyph);
}
painter().draw_glyph_run(transformed_glyph_run, color);