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LibGfx+LibWeb: Add ImmutableBitmap for images bitmap caching in painter
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.
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24 changed files with 146 additions and 35 deletions
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@ -175,7 +175,7 @@ void ImagePaintable::paint(PaintContext& context, PaintPhase phase) const
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(int)scaled_bitmap_height
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};
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context.painter().draw_scaled_bitmap(draw_rect.intersected(image_int_rect), *bitmap, bitmap_rect.intersected(bitmap_intersect), scaling_mode);
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context.painter().draw_scaled_immutable_bitmap(draw_rect.intersected(image_int_rect), *bitmap, bitmap_rect.intersected(bitmap_intersect), scaling_mode);
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}
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}
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}
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