| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkUtils.h" |
| |
| namespace { // See Sk4px.h |
| |
| static_assert(sizeof(Sk4px) == 16, "This file uses memcpy / sk_memset32, so exact size matters."); |
| |
| inline Sk4px Sk4px::DupPMColor(SkPMColor px) { |
| Sk4px px4 = Sk16b(); |
| sk_memset32((uint32_t*)&px4, px, 4); |
| return px4; |
| } |
| |
| inline Sk4px Sk4px::Load4(const SkPMColor px[4]) { |
| Sk4px px4 = Sk16b(); |
| memcpy(&px4, px, 16); |
| return px4; |
| } |
| |
| inline Sk4px Sk4px::Load2(const SkPMColor px[2]) { |
| Sk4px px2 = Sk16b(); |
| memcpy(&px2, px, 8); |
| return px2; |
| } |
| |
| inline Sk4px Sk4px::Load1(const SkPMColor px[1]) { |
| Sk4px px1 = Sk16b(); |
| memcpy(&px1, px, 4); |
| return px1; |
| } |
| |
| inline void Sk4px::store4(SkPMColor px[4]) const { memcpy(px, this, 16); } |
| inline void Sk4px::store2(SkPMColor px[2]) const { memcpy(px, this, 8); } |
| inline void Sk4px::store1(SkPMColor px[1]) const { memcpy(px, this, 4); } |
| |
| inline Sk4px::Wide Sk4px::widenLo() const { |
| return Sk16h(this->kth< 0>(), this->kth< 1>(), this->kth< 2>(), this->kth< 3>(), |
| this->kth< 4>(), this->kth< 5>(), this->kth< 6>(), this->kth< 7>(), |
| this->kth< 8>(), this->kth< 9>(), this->kth<10>(), this->kth<11>(), |
| this->kth<12>(), this->kth<13>(), this->kth<14>(), this->kth<15>()); |
| } |
| |
| inline Sk4px::Wide Sk4px::widenHi() const { return this->widenLo() << 8; } |
| |
| inline Sk4px::Wide Sk4px::mulWiden(const Sk16b& other) const { |
| return this->widenLo() * Sk4px(other).widenLo(); |
| } |
| |
| inline Sk4px Sk4px::Wide::addNarrowHi(const Sk16h& other) const { |
| Sk4px::Wide r = (*this + other) >> 8; |
| return Sk16b(r.kth< 0>(), r.kth< 1>(), r.kth< 2>(), r.kth< 3>(), |
| r.kth< 4>(), r.kth< 5>(), r.kth< 6>(), r.kth< 7>(), |
| r.kth< 8>(), r.kth< 9>(), r.kth<10>(), r.kth<11>(), |
| r.kth<12>(), r.kth<13>(), r.kth<14>(), r.kth<15>()); |
| } |
| |
| inline Sk4px Sk4px::alphas() const { |
| static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian."); |
| return Sk16b(this->kth< 3>(), this->kth< 3>(), this->kth< 3>(), this->kth< 3>(), |
| this->kth< 7>(), this->kth< 7>(), this->kth< 7>(), this->kth< 7>(), |
| this->kth<11>(), this->kth<11>(), this->kth<11>(), this->kth<11>(), |
| this->kth<15>(), this->kth<15>(), this->kth<15>(), this->kth<15>()); |
| } |
| |
| inline Sk4px Sk4px::Load4Alphas(const SkAlpha a[4]) { |
| return Sk16b(a[0], a[0], a[0], a[0], |
| a[1], a[1], a[1], a[1], |
| a[2], a[2], a[2], a[2], |
| a[3], a[3], a[3], a[3]); |
| } |
| |
| inline Sk4px Sk4px::Load2Alphas(const SkAlpha a[2]) { |
| return Sk16b(a[0], a[0], a[0], a[0], |
| a[1], a[1], a[1], a[1], |
| 0,0,0,0, |
| 0,0,0,0); |
| } |
| |
| inline Sk4px Sk4px::zeroAlphas() const { |
| static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian."); |
| return Sk16b(this->kth< 0>(), this->kth< 1>(), this->kth< 2>(), 0, |
| this->kth< 4>(), this->kth< 5>(), this->kth< 6>(), 0, |
| this->kth< 8>(), this->kth< 9>(), this->kth<10>(), 0, |
| this->kth<12>(), this->kth<13>(), this->kth<14>(), 0); |
| } |
| |
| inline Sk4px Sk4px::zeroColors() const { |
| static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian."); |
| return Sk16b(0,0,0, this->kth< 3>(), |
| 0,0,0, this->kth< 7>(), |
| 0,0,0, this->kth<11>(), |
| 0,0,0, this->kth<15>()); |
| } |
| |
| } // namespace |