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LibWeb: Don't encode painting limitations in RecordingPainter API
The current set of stacking context commands do not encode the information needed to correctly paint the stacking context, instead, they're based on the limitations of the current CPU renderer. Stacking contexts should be able to be transformed by an arbitrary 3D transformation matrix, not just scaled from a source to a destination rect. The `_with_mask()` stacking context also should not be separate from the regular stacking context. ```c++ push_stacking_context( bool semitransparent_or_has_non_identity_transform, float opacity, Gfx::FloatRect const& source_rect, Gfx::FloatRect const& transformed_destination_rect, Gfx::IntPoint const& painter_location); pop_stacking_context( bool semitransparent_or_has_non_identity_transform, Gfx::Painter::ScalingMode scaling_mode); push_stacking_context_with_mask( Gfx::IntRect const& paint_rect); pop_stacking_context_with_mask( Gfx::IntRect const& paint_rect, RefPtr<Gfx::Bitmap> const& mask_bitmap, Gfx::Bitmap::MaskKind mask_kind, float opacity); ``` This patch replaces this APIs with just: ```c++ push_stacking_context( float opacity, bool is_fixed_position, Gfx::IntRect const& source_paintable_rect, Gfx::IntPoint post_transform_translation, CSS::ImageRendering image_rendering, StackingContextTransform transform, Optional<StackingContextMask> mask); pop_stacking_context() ``` And moves the implementation details into the executor, this should allow future backends to implement stacking contexts without these limitations.
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parent
848b0d9c81
commit
4e04f81626
7 changed files with 189 additions and 253 deletions
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@ -75,25 +75,13 @@ CommandResult PaintingCommandExecutorGPU::set_font(Gfx::Font const&)
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return CommandResult::Continue;
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}
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CommandResult PaintingCommandExecutorGPU::push_stacking_context(bool, float, Gfx::FloatRect const&, Gfx::FloatRect const&, Gfx::IntPoint const&)
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CommandResult PaintingCommandExecutorGPU::push_stacking_context(float, bool, Gfx::IntRect const&, Gfx::IntPoint, CSS::ImageRendering, StackingContextTransform, Optional<StackingContextMask>)
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{
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// FIXME
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return CommandResult::Continue;
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}
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CommandResult PaintingCommandExecutorGPU::pop_stacking_context(bool, Gfx::Painter::ScalingMode)
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{
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// FIXME
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return CommandResult::Continue;
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}
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CommandResult PaintingCommandExecutorGPU::push_stacking_context_with_mask(Gfx::IntRect const&)
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{
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// FIXME
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return CommandResult::Continue;
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}
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CommandResult PaintingCommandExecutorGPU::pop_stacking_context_with_mask(Gfx::IntRect const&, RefPtr<Gfx::Bitmap> const&, Gfx::Bitmap::MaskKind, float)
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CommandResult PaintingCommandExecutorGPU::pop_stacking_context()
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{
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// FIXME
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return CommandResult::Continue;
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