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LibGfx+LibWeb: Add ImmutableBitmap for images bitmap caching in painter

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Before this change, we used Gfx::Bitmap to represent both decoded
images that are not going to be mutated and bitmaps corresponding
to canvases that could be mutated.

This change introduces a wrapper for bitmaps that are not going to be
mutated, so the painter could do caching: texture caching in the case
of GPU painter and potentially scaled bitmap caching in the case of CPU
painter.
This commit is contained in:
Aliaksandr Kalenik 2023-11-24 14:45:45 +01:00 • committed by Andreas Kling
parent abcf71a8ca
commit f4a5c136c3
24 changed files with 146 additions and 35 deletions
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13
Userland/Libraries/LibWeb/Painting/RecordingPainter.cpp
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@ -157,6 +157,16 @@ void RecordingPainter::draw_scaled_bitmap(Gfx::IntRect const& dst_rect, Gfx::Bit
});
}
void RecordingPainter::draw_scaled_immutable_bitmap(Gfx::IntRect const& dst_rect, Gfx::ImmutableBitmap const& bitmap, Gfx::IntRect const& src_rect, Gfx::Painter::ScalingMode scaling_mode)
{
push_command(DrawScaledImmutableBitmap {
.dst_rect = state().translation.map(dst_rect),
.bitmap = bitmap,
.src_rect = src_rect,
.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 {
@ -436,6 +446,9 @@ void RecordingPainter::execute(PaintingCommandExecutor& executor)
[&](DrawScaledBitmap const& command) {
return executor.draw_scaled_bitmap(command.dst_rect, command.bitmap, command.src_rect, command.scaling_mode);
},
[&](DrawScaledImmutableBitmap const& command) {
return executor.draw_scaled_immutable_bitmap(command.dst_rect, command.bitmap, command.src_rect, command.scaling_mode);
},
[&](SetClipRect const& command) {
return executor.set_clip_rect(command.rect);
},