Sk4fGradientInterval::Sk4fGradientInterval(const Sk4f& c0, SkScalar t0,
const Sk4f& c1, SkScalar t1)
: fT0(t0)
- , fT1(t1)
- , fZeroRamp((c0 == c1).allTrue()) {
+ , fT1(t1) {
SkASSERT(t0 != t1);
// Either p0 or p1 can be (-)inf for synthetic clamp edge intervals.
SkASSERT(SkScalarIsFinite(t0) || SkScalarIsFinite(t1));
const auto dt = t1 - t0;
// Clamp edge intervals are always zero-ramp.
- SkASSERT(SkScalarIsFinite(dt) || fZeroRamp);
- SkASSERT(SkScalarIsFinite(t0) || fZeroRamp);
+ SkASSERT(SkScalarIsFinite(dt) || (c0 == c1).allTrue());
+ SkASSERT(SkScalarIsFinite(t0) || (c0 == c1).allTrue());
const Sk4f dc = SkScalarIsFinite(dt) ? (c1 - c0) / dt : 0;
const Sk4f bias = c0 - (SkScalarIsFinite(t0) ? t0 * dc : 0);
void compute_interval_props(SkScalar t) {
SkASSERT(in_range(t, fInterval->fT0, fInterval->fT1));
- fZeroRamp = fIsVertical || fInterval->fZeroRamp;
- fCc = DstTraits<dstType, premul>::load(fInterval->fCb);
-
- if (fInterval->fZeroRamp) {
- fDcDx = 0;
- } else {
- const Sk4f dC = DstTraits<dstType, premul>::load(fInterval->fCg);
- fCc = fCc + dC * Sk4f(t);
- fDcDx = dC * fDx;
- }
+ const Sk4f dc = DstTraits<dstType, premul>::load(fInterval->fCg);
+ fCc = DstTraits<dstType, premul>::load(fInterval->fCb) + dc * Sk4f(t);
+ fDcDx = dc * fDx;
+ fZeroRamp = fIsVertical || (dc == 0).allTrue();
}
void init_average_props() {
//
// Avg += C * (t1 - t0)
//
- auto c = DstTraits<dstType, premul>::load(i->fCb);
- if (!i->fZeroRamp) {
- c = c + DstTraits<dstType, premul>::load(i->fCg) * (i->fT0 + i->fT1) * 0.5f;
- }
+ const auto c = DstTraits<dstType, premul>::load(i->fCb)
+ + DstTraits<dstType, premul>::load(i->fCg) * (i->fT0 + i->fT1) * 0.5f;
fCc = fCc + c * (i->fT1 - i->fT0);
}
}