/*
* This method traverses the clip stack to see if the GrSoftwarePathRenderer
* will be used on any element. If so, it returns true to indicate that the
* entire clip should be rendered in SW and then uploaded en masse to the gpu.
*/
bool GrClipMaskManager::useSWOnlyPath(const SkClipStack& clipIn) {
// TODO: generalize this function so that when
// a clip gets complex enough it can just be done in SW regardless
// of whether it would invoke the GrSoftwarePathRenderer.
bool useSW = false;
SkClipStack::Iter iter(clipIn, SkClipStack::Iter::kBottom_IterStart);
const SkClipStack::Iter::Clip* clip = NULL;
for (clip = iter.skipToTopmost(SkRegion::kReplace_Op);
NULL != clip;
clip = iter.nextCombined()) {
// rects can always be drawn directly w/o using the software path
// so only paths need to be checked
if (NULL != clip->fPath &&
path_needs_SW_renderer(this->getContext(), fGpu,
*clip->fPath,
get_path_fill(*clip->fPath),
clip->fDoAA)) {
useSW = true;
}
}
return useSW;
}
/*
* This method traverses the clip stack to see if the GrSoftwarePathRenderer
* will be used on any element. If so, it returns true to indicate that the
* entire clip should be rendered in SW and then uploaded en masse to the gpu.
*/
bool GrClipMaskManager::useSWOnlyPath(const GrPipelineBuilder& pipelineBuilder,
const SkVector& clipToMaskOffset,
const GrReducedClip::ElementList& elements) {
// TODO: generalize this function so that when
// a clip gets complex enough it can just be done in SW regardless
// of whether it would invoke the GrSoftwarePathRenderer.
GrStrokeInfo stroke(SkStrokeRec::kFill_InitStyle);
// Set the matrix so that rendered clip elements are transformed to mask space from clip
// space.
SkMatrix translate;
translate.setTranslate(clipToMaskOffset);
for (GrReducedClip::ElementList::Iter iter(elements.headIter()); iter.get(); iter.next()) {
const Element* element = iter.get();
// rects can always be drawn directly w/o using the software path
// Skip rrects once we're drawing them directly.
if (Element::kRect_Type != element->getType()) {
SkPath path;
element->asPath(&path);
if (path_needs_SW_renderer(this->getContext(), fDrawTarget, pipelineBuilder, translate,
path, stroke, element->isAA())) {
return true;
}
}
}
return false;
}
