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sw_engine: support trimmed fill

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Until now, only stroke trimming was possible,
but the Lottie standard requires support for
trimming both (if present), stroke and fill.
This commit changes the API behavior.

@Issue: https://github.com/thorvg/thorvg/issues/3118
This commit is contained in:
Mira Grudzinska 2025-02-12 19:35:39 +01:00 • committed by Hermet Park
parent b939a60bfa
commit c4747e6802
2 changed files with 8 additions and 14 deletions
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2
src/renderer/sw_engine/tvgSwCommon.h
View file

@ -288,7 +288,7 @@ struct SwMpool
{
SwOutline* outline;
SwOutline* strokeOutline;
SwOutline* dashOutline; //Trimming treated as a special case of dashing
SwOutline* dashOutline;
unsigned allocSize;
};

18
src/renderer/sw_engine/tvgSwShape.cpp
View file

@ -374,7 +374,7 @@ static SwOutline* _genOutline(SwShape* shape, const RenderShape* rshape, const M
//No actual shape data
if (cmdCnt == 0 || ptsCnt == 0) return nullptr;
auto outline = trimmed ? mpoolReqDashOutline(mpool, tid) : mpoolReqOutline(mpool, tid);
auto outline = mpoolReqOutline(mpool, tid);
auto closed = false;
//Generate Outlines
@ -412,7 +412,7 @@ static SwOutline* _genOutline(SwShape* shape, const RenderShape* rshape, const M
tvg::free(trimmedCmds);
tvg::free(trimmedPts);
if (!trimmed) shape->fastTrack = (!hasComposite && _axisAlignedRect(outline));
shape->fastTrack = (!hasComposite && _axisAlignedRect(outline));
return outline;
}
@ -423,7 +423,7 @@ static SwOutline* _genOutline(SwShape* shape, const RenderShape* rshape, const M
bool shapePrepare(SwShape* shape, const RenderShape* rshape, const Matrix& transform, const SwBBox& clipRegion, SwBBox& renderRegion, SwMpool* mpool, unsigned tid, bool hasComposite)
{
if (auto out = _genOutline(shape, rshape, transform, mpool, tid, hasComposite)) shape->outline = out;
if (auto out = _genOutline(shape, rshape, transform, mpool, tid, hasComposite, rshape->trimpath())) shape->outline = out;
else return false;
if (!mathUpdateOutlineBBox(shape->outline, clipRegion, renderRegion, shape->fastTrack)) return false;
@ -510,20 +510,14 @@ bool shapeGenStrokeRle(SwShape* shape, const RenderShape* rshape, const Matrix&
auto ret = true;
//Dash style with/without trimming
auto trimmed = rshape->trimpath();
if (rshape->stroke->dashCnt > 0) {
shapeOutline = _genDashOutline(rshape, transform, mpool, tid, trimmed);
shapeOutline = _genDashOutline(rshape, transform, mpool, tid, rshape->trimpath());
if (!shapeOutline) return false;
dashStroking = true;
//Trimming
} else if (trimmed) {
shapeOutline = _genOutline(shape, rshape, transform, mpool, tid, false, true);
if (!shapeOutline) return false;
dashStroking = true;
//Normal style
//Trimming & Normal style
} else {
if (!shape->outline) {
if (auto out = _genOutline(shape, rshape, transform, mpool, tid, false)) shape->outline = out;
if (auto out = _genOutline(shape, rshape, transform, mpool, tid, false, rshape->trimpath())) shape->outline = out;
else return false;
}
shapeOutline = shape->outline;