2 Commits

Author	SHA1	Message	Date
Florin Malita	c75e2401a8	[sksg] Refine invalidation logic ... We need to discriminate between nodes whose bounds updates contribute to the dirty region, and nodes whose bounds changes do not. E.g. animated shape in a group: the animated shape node bounds should yield damage, but the ancestor group bounds should not. To accomplish this, we refine the invalidation state: 1) self invalidation == the node itself was invalidated, and its bounds updates yield damage. 2) descendant invalidation == the node has some (self-)invalidated descendant, but its own bounds are not contributing damage. Also: * hoist the bounding box invalidation logic into the base class (Node::revalidate) and update to respect the states described above. * remove (now-redundant) GeometryNode bbox logic. * update revalidation methods to return the node bbox instead of void TBR= Change-Id: I8023d1793fb501c945a53f2dc2d2983e5b620ade Reviewed-on: https://skia-review.googlesource.com/90581 Reviewed-by: Florin Malita <fmalita@chromium.org> Commit-Queue: Florin Malita <fmalita@chromium.org>	2018-01-04 00:59:20 +00:00
Florin Malita	4aa4441186	Initial scene graph (SkSG) ... Sketching a thin (as in close-to-skia-semantics) scene graph API, focused on external animation, inval tracking and minimal repaint. Only a few concrete classes/features so far: * Rect/Color/Transform/Group * basic inval tracking * a trivial animated sample with inval visualization Pretty much everything (especially naming) is volatile, so treat accordingly. The interesting bits to review are likely in Node.{h,cpp} for inval and SampleSGInval.cpp for usage. Initial class hierarchy: * Node: invalidation/ancestors tracking | -- * RenderNode: onRender(SkCanvas) | | | -- * Draw (concrete): rendering a [geometry, paint] tuple | | | -- * Group (concrete): grouping multiple RenderNodes | | | -- * EffectNode: single-descendant effect wrapper | | | -- * Transform (concrete): transform effect | -- * PaintNode: onMakePaint() | | | -- * Color (concrete): SkColor paint wrapper | -- * GeometryNode: onComputeBounds(), onDraw(SkCanvas, SkPaint) | -- * Rect (concrete): SkRect wrapper TBR= Change-Id: Iacf9b773c181a7582ecd31ee968562f179d1aa1b Reviewed-on: https://skia-review.googlesource.com/85502 Reviewed-by: Florin Malita <fmalita@chromium.org> Commit-Queue: Florin Malita <fmalita@chromium.org>	2017-12-21 20:56:32 +00:00