1fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/* 2fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Copyright 2015 Google Inc. 3fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * 4fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Use of this source code is governed by a BSD-style license that can be 5fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * found in the LICENSE file. 6fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 7fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 8fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkUtils.h" 9fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 10fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotnamespace { // See Sk4px.h 11fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 12fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstatic_assert(sizeof(Sk4px) == 16, "This file uses memcpy / sk_memset32, so exact size matters."); 13fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 14fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::DupPMColor(SkPMColor px) { 15fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot Sk4px px4 = Sk16b(); 16fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_memset32((uint32_t*)&px4, px, 4); 17fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return px4; 18fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 19fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 20fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::Load4(const SkPMColor px[4]) { 21fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot Sk4px px4 = Sk16b(); 22fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot memcpy(&px4, px, 16); 23fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return px4; 24fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 25fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 26fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::Load2(const SkPMColor px[2]) { 27fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot Sk4px px2 = Sk16b(); 28fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot memcpy(&px2, px, 8); 29fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return px2; 30fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 31fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 32fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::Load1(const SkPMColor px[1]) { 33fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot Sk4px px1 = Sk16b(); 34fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot memcpy(&px1, px, 4); 35fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return px1; 36fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 37fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 38fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline void Sk4px::store4(SkPMColor px[4]) const { memcpy(px, this, 16); } 39fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline void Sk4px::store2(SkPMColor px[2]) const { memcpy(px, this, 8); } 40fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline void Sk4px::store1(SkPMColor px[1]) const { memcpy(px, this, 4); } 41fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 42fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px::Wide Sk4px::widenLo() const { 43fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return Sk16h((*this)[ 0], (*this)[ 1], (*this)[ 2], (*this)[ 3], 44fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (*this)[ 4], (*this)[ 5], (*this)[ 6], (*this)[ 7], 45fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (*this)[ 8], (*this)[ 9], (*this)[10], (*this)[11], 46fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (*this)[12], (*this)[13], (*this)[14], (*this)[15]); 47fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 48fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 49fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px::Wide Sk4px::widenHi() const { return this->widenLo() << 8; } 50fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 51fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px::Wide Sk4px::widenLoHi() const { return this->widenLo() + this->widenHi(); } 52fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 53fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px::Wide Sk4px::mulWiden(const Sk16b& other) const { 54fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return this->widenLo() * Sk4px(other).widenLo(); 55fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 56fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 57fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::Wide::addNarrowHi(const Sk16h& other) const { 58fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot Sk4px::Wide r = (*this + other) >> 8; 59fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return Sk16b(r[ 0], r[ 1], r[ 2], r[ 3], 60fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot r[ 4], r[ 5], r[ 6], r[ 7], 61fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot r[ 8], r[ 9], r[10], r[11], 62fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot r[12], r[13], r[14], r[15]); 63fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 64fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 65fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::Wide::div255() const { 66fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Calculated as ((x+128) + ((x+128)>>8)) >> 8. 67fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot auto v = *this + Sk16h(128); 68fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return v.addNarrowHi(v>>8); 69fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 70fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 71fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::alphas() const { 72fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian."); 73fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return Sk16b((*this)[ 3], (*this)[ 3], (*this)[ 3], (*this)[ 3], 74fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (*this)[ 7], (*this)[ 7], (*this)[ 7], (*this)[ 7], 75fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (*this)[11], (*this)[11], (*this)[11], (*this)[11], 76fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (*this)[15], (*this)[15], (*this)[15], (*this)[15]); 77fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 78fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 79fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::Load4Alphas(const SkAlpha a[4]) { 80fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return Sk16b(a[0], a[0], a[0], a[0], 81fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot a[1], a[1], a[1], a[1], 82fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot a[2], a[2], a[2], a[2], 83fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot a[3], a[3], a[3], a[3]); 84fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 85fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 86fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::Load2Alphas(const SkAlpha a[2]) { 87fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return Sk16b(a[0], a[0], a[0], a[0], 88fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot a[1], a[1], a[1], a[1], 89fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 0,0,0,0, 90fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 0,0,0,0); 91fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 92fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 93fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::zeroAlphas() const { 94fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian."); 95fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return Sk16b((*this)[ 0], (*this)[ 1], (*this)[ 2], 0, 96fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (*this)[ 4], (*this)[ 5], (*this)[ 6], 0, 97fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (*this)[ 8], (*this)[ 9], (*this)[10], 0, 98fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (*this)[12], (*this)[13], (*this)[14], 0); 99fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 100fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 101fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotinline Sk4px Sk4px::zeroColors() const { 102fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian."); 103fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return Sk16b(0,0,0, (*this)[ 3], 104fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 0,0,0, (*this)[ 7], 105fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 0,0,0, (*this)[11], 106fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 0,0,0, (*this)[15]); 107fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 108fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 109fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} // namespace 110