static bool operator==(const SkRasterClip& a, const SkRasterClip& b) {
if (a.isEmpty()) {
return b.isEmpty();
}
if (b.isEmpty()) {
return false;
}
SkMask ma, mb;
copyToMask(a, &ma);
copyToMask(b, &mb);
SkAutoMaskFreeImage aCleanUp(ma.fImage);
SkAutoMaskFreeImage bCleanUp(mb.fImage);
return ma == mb;
}
SkRasterClip::SkRasterClip(const SkRasterClip& src) {
AUTO_RASTERCLIP_VALIDATE(src);
fIsBW = src.fIsBW;
if (fIsBW) {
fBW = src.fBW;
} else {
fAA = src.fAA;
}
fIsEmpty = src.isEmpty();
fIsRect = src.isRect();
SkDEBUGCODE(this->validate();)
}
void SkScan::FillXRect(const SkXRect& xr, const SkRasterClip& clip,
SkBlitter* blitter) {
if (clip.isEmpty() || xr.isEmpty()) {
return;
}
if (clip.isBW()) {
FillXRect(xr, &clip.bwRgn(), blitter);
return;
}
SkAAClipBlitterWrapper wrapper(clip, blitter);
FillXRect(xr, &wrapper.getRgn(), wrapper.getBlitter());
}
void SkScan::FillTriangle(const SkPoint pts[], const SkRasterClip& clip,
SkBlitter* blitter) {
if (clip.isEmpty()) {
return;
}
SkRect r;
r.set(pts, 3);
// If r is too large (larger than can easily fit in SkFixed) then we need perform geometric
// clipping. This is a bit of work, so we just call the general FillPath() to handle it.
// Use FixedMax/2 as the limit so we can subtract two edges and still store that in Fixed.
const SkScalar limit = SK_MaxS16 >> 1;
if (!SkRect::MakeLTRB(-limit, -limit, limit, limit).contains(r)) {
SkPath path;
path.addPoly(pts, 3, false);
FillPath(path, clip, blitter);
return;
}
SkIRect ir = conservative_round_to_int(r);
if (ir.isEmpty() || !SkIRect::Intersects(ir, clip.getBounds())) {
return;
}
SkAAClipBlitterWrapper wrap;
const SkRegion* clipRgn;
if (clip.isBW()) {
clipRgn = &clip.bwRgn();
} else {
wrap.init(clip, blitter);
clipRgn = &wrap.getRgn();
blitter = wrap.getBlitter();
}
SkScanClipper clipper(blitter, clipRgn, ir);
blitter = clipper.getBlitter();
if (blitter) {
sk_fill_triangle(pts, clipper.getClipRect(), blitter, ir);
}
}
