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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
namespace { // See SkPMFloat.h
inline SkPMFloat::SkPMFloat(SkPMColor c) {
float inv255 = 1.0f/255;
*this = SkPMFloat::FromARGB(SkGetPackedA32(c) * inv255,
SkGetPackedR32(c) * inv255,
SkGetPackedG32(c) * inv255,
SkGetPackedB32(c) * inv255);
SkASSERT(this->isValid());
}
inline SkPMColor SkPMFloat::round() const {
float a = this->a(),
r = this->r(),
g = this->g(),
b = this->b();
a = a < 0 ? 0 : (a > 1 ? 1 : a);
r = r < 0 ? 0 : (r > 1 ? 1 : r);
g = g < 0 ? 0 : (g > 1 ? 1 : g);
b = b < 0 ? 0 : (b > 1 ? 1 : b);
SkPMColor c = SkPackARGB32(255*a+0.5f, 255*r+0.5f, 255*g+0.5f, 255*b+0.5f);
SkPMColorAssert(c);
return c;
}
inline Sk4f SkPMFloat::alphas() const {
return Sk4f(this->a());
}
inline SkPMFloat SkPMFloat::FromBGRx(SkColor c) {
float inv255 = 1.0f / 255;
SkPMFloat pmf = SkPMFloat::FromARGB(1.0f,
SkGetPackedR32(c) * inv255,
SkGetPackedG32(c) * inv255,
SkGetPackedB32(c) * inv255);
SkASSERT(pmf.isValid());
return pmf;
}
} // namespace
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