| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| inline SkPMFloat::SkPMFloat(SkPMColor c) { |
| *this = SkPMFloat::FromARGB(SkGetPackedA32(c), |
| SkGetPackedR32(c), |
| SkGetPackedG32(c), |
| SkGetPackedB32(c)); |
| SkASSERT(this->isValid()); |
| } |
| |
| inline SkPMColor SkPMFloat::trunc() const { |
| return SkPackARGB32(this->a(), this->r(), this->g(), this->b()); |
| } |
| |
| inline SkPMColor SkPMFloat::round() const { |
| SkPMColor c = SkPackARGB32(this->a()+0.5f, this->r()+0.5f, this->g()+0.5f, this->b()+0.5f); |
| SkPMColorAssert(c); |
| return c; |
| } |
| |
| inline SkPMColor SkPMFloat::roundClamp() const { |
| float a = this->a(), |
| r = this->r(), |
| g = this->g(), |
| b = this->b(); |
| a = a < 0 ? 0 : (a > 255 ? 255 : a); |
| r = r < 0 ? 0 : (r > 255 ? 255 : r); |
| g = g < 0 ? 0 : (g > 255 ? 255 : g); |
| b = b < 0 ? 0 : (b > 255 ? 255 : b); |
| SkPMColor c = SkPackARGB32(a+0.5f, r+0.5f, g+0.5f, b+0.5f); |
| SkPMColorAssert(c); |
| return c; |
| } |
| |
| inline void SkPMFloat::From4PMColors(const SkPMColor colors[4], |
| SkPMFloat* a, SkPMFloat* b, SkPMFloat* c, SkPMFloat* d) { |
| *a = FromPMColor(colors[0]); |
| *b = FromPMColor(colors[1]); |
| *c = FromPMColor(colors[2]); |
| *d = FromPMColor(colors[3]); |
| } |
| |
| inline void SkPMFloat::RoundTo4PMColors( |
| const SkPMFloat& a, const SkPMFloat& b, const SkPMFloat&c, const SkPMFloat& d, |
| SkPMColor colors[4]) { |
| colors[0] = a.round(); |
| colors[1] = b.round(); |
| colors[2] = c.round(); |
| colors[3] = d.round(); |
| } |
| |
| inline void SkPMFloat::RoundClampTo4PMColors( |
| const SkPMFloat& a, const SkPMFloat& b, const SkPMFloat&c, const SkPMFloat& d, |
| SkPMColor colors[4]) { |
| colors[0] = a.roundClamp(); |
| colors[1] = b.roundClamp(); |
| colors[2] = c.roundClamp(); |
| colors[3] = d.roundClamp(); |
| } |