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LibWeb: Use box sampling instead of bilinear scaling when downscaling
As a heuristic, either the width or height of the scaled image should decrease for box sampling to be used. Otherwise, we use bilinear scaling.
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5 changed files with 13 additions and 6 deletions
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@ -41,7 +41,8 @@ void CanvasPaintable::paint(PaintContext& context, PaintPhase phase) const
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if (layout_box().dom_node().bitmap()) {
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// FIXME: Remove this const_cast.
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const_cast<HTML::HTMLCanvasElement&>(layout_box().dom_node()).present();
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context.painter().draw_scaled_bitmap(canvas_rect.to_type<int>(), *layout_box().dom_node().bitmap(), layout_box().dom_node().bitmap()->rect(), 1.0f, to_gfx_scaling_mode(computed_values().image_rendering()));
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auto scaling_mode = to_gfx_scaling_mode(computed_values().image_rendering(), layout_box().dom_node().bitmap()->rect(), canvas_rect.to_type<int>());
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context.painter().draw_scaled_bitmap(canvas_rect.to_type<int>(), *layout_box().dom_node().bitmap(), layout_box().dom_node().bitmap()->rect(), 1.0f, scaling_mode);
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}
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}
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}
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