Commit Graph

5 Commits

Author SHA1 Message Date
Tyler Denniston
62a683e476 [svg] Prep work for filter primitive subregion
- Add primitiveUnits attribute to SkSVGFilter class
- Add optional x, y, width, height attributes to filter effect base
  class (SkSVGFe)
- Add function to return list of inputs for all filter effects
- Add function to compute filter primitive subregion and use it in all
  filter effect classes.

Currently the "primitive subregion" just returns the entire filter
effect region, so there should be no diffs on gold with this change.

Bug: skia:10841
Change-Id: I1de283bebe302c0710d6b09d62a2472787820a49
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/343107
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Tyler Denniston <tdenniston@google.com>
2020-12-11 18:21:21 +00:00
Tyler Denniston
b2d1a3bdd7 [svg] Minor cleanups
- Consolidate SVGColor resolution into one method in render context, now
  that it's a shared type.
- Remove all instances of `~TypeName() override = default;`. The only
  thing this provides is slight/unreliable protection against someone
  inadvertently removing 'virtual' from the base class destructor. In
  our case that is SkRefCnt, which I'm assuming has very low risk of
  that happening.
- Clean up some .h copy/paste issues of the form
  `#endif  // Typename_DEFINED`

Change-Id: I67fb40b2828b010fb7fdd83046bc1eae1a476267
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/343421
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Tyler Denniston <tdenniston@google.com>
2020-12-11 16:25:20 +00:00
Florin Malita
401321d98e [svg] Minor parser tweaks
- remove the custom-func SkSVGAttributeParser::parse version and always
  dispatch via SkSVGAttributeParser::parse<T>(T*) - this should
  avoid adding any other parse helper declarations in the future
- relocate the turbulence parse helpers to SkSVGAttributeParser (while
  keeping the definition in SkSVGFETurbulence.cpp)
- update ParseResult initialization to use move semantics

Change-Id: I8ed9811671a6fbc5971f9d1f14e7b9c07da7dec0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/332540
Commit-Queue: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@google.com>
Reviewed-by: Tyler Denniston <tdenniston@google.com>
2020-11-05 17:12:06 +00:00
Tyler Denniston
57154998a8 [svg] Add plumbing for bottom-up attribute parsing
One significant source of boilerplate in the SVG frontend is the
plumbing to ensure type safety all the way down from the XML layer to
the SkSVGNode layer. This is mostly an artifact of the top-down parsing
approach currently used by the SkDOM -> SkSVGDom building process.

One way to help remove some boilerplate is to perform attribute parsing
bottom-up, where each SVG node knows how to parse and populate its own
attribute values from a string-valued KV pair.

Additionally, bottom-up parsing allows us to support the case of the
same SVG attribute name having different meanings on different nodes
(e.g. the "type" attribute has different meaning on <feTurbulence>
versus <feColorMatrix>).

This CL adds some initial work to start us down that road, and ports the
attributes previously added for <feTurbulence> to use the new code path.

Change-Id: I2973cfab96891475d05ebf1228117626ca48ef4d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/331477
Commit-Queue: Tyler Denniston <tdenniston@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2020-11-04 21:48:03 +00:00
Tyler Denniston
dada960d79 [svg] Add feTurbulence filter (incomplete)
This was the simplest one to start with. I need to add support for the
"filter effect subregion" in order to handle tile stitching property,
so this isn't quite complete. But I believe this is enough for the
basic filters-turb-01-f test to pass, which gives us a baseline for
further filter work.

Summary of changes:
- Added attribute type and parsing for SVG integer datatype
- Added new node class for feTurbulence
- Added several new properties and parsing for feTurbulence

Bug: skia:10841
Change-Id: I8c877a5e1a837bfd527782253062eeb58febdde6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/330621
Commit-Queue: Tyler Denniston <tdenniston@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2020-11-03 15:41:41 +00:00