1d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein/*
2d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein * Copyright 2015 Google Inc.
3d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein *
4d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein * Use of this source code is governed by a BSD-style license that can be
5d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein * found in the LICENSE file.
6d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein */
7d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
8d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein#include "SkUtils.h"
9d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
10d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleinstatic_assert(sizeof(Sk4px) == 16, "This file uses memcpy / sk_memset32, so exact size matters.");
11d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
12d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline Sk4px::Sk4px(SkPMColor px) {
13d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    sk_memset32((uint32_t*)this, px, 4);
14d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein}
15d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
16d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline Sk4px Sk4px::Load4(const SkPMColor px[4]) {
17d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    Sk4px px4 = Sk16b();
18d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    memcpy(&px4, px, 16);
19d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    return px4;
20d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein}
21d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
22d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline Sk4px Sk4px::Load2(const SkPMColor px[2]) {
23d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    Sk4px px2 = Sk16b();
24d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    memcpy(&px2, px, 8);
25d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    return px2;
26d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein}
27d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
28d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline Sk4px Sk4px::Load1(const SkPMColor px[1]) {
29d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    Sk4px px1 = Sk16b();
30d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    memcpy(&px1, px, 4);
31d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    return px1;
32d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein}
33d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
34d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline void Sk4px::store4(SkPMColor px[4]) const { memcpy(px, this, 16); }
35d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline void Sk4px::store2(SkPMColor px[2]) const { memcpy(px, this,  8); }
36d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline void Sk4px::store1(SkPMColor px[1]) const { memcpy(px, this,  4); }
37d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
38d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline Sk4px::Wide Sk4px::widenLo() const {
39d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    return Sk16h(this->kth< 0>(), this->kth< 1>(), this->kth< 2>(), this->kth< 3>(),
40d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein                 this->kth< 4>(), this->kth< 5>(), this->kth< 6>(), this->kth< 7>(),
41d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein                 this->kth< 8>(), this->kth< 9>(), this->kth<10>(), this->kth<11>(),
42d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein                 this->kth<12>(), this->kth<13>(), this->kth<14>(), this->kth<15>());
43d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein}
44d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
45d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline Sk4px::Wide Sk4px::widenHi() const { return this->widenLo() << 8; }
46d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
47d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline Sk4px::Wide Sk4px::mulWiden(const Sk16b& other) const {
48d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    return this->widenLo() * Sk4px(other).widenLo();
49d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein}
50d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein
51d2ffd36eb62e99abe2920369d1e040954cc2044fmtkleininline Sk4px Sk4px::Wide::addNarrowHi(const Sk16h& other) const {
52d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    Sk4px::Wide r = (*this + other) >> 8;
53d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein    return Sk16b(r.kth< 0>(), r.kth< 1>(), r.kth< 2>(), r.kth< 3>(),
54d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein                 r.kth< 4>(), r.kth< 5>(), r.kth< 6>(), r.kth< 7>(),
55d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein                 r.kth< 8>(), r.kth< 9>(), r.kth<10>(), r.kth<11>(),
56d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein                 r.kth<12>(), r.kth<13>(), r.kth<14>(), r.kth<15>());
57d2ffd36eb62e99abe2920369d1e040954cc2044fmtklein}
588a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein
598a90edc2a58a4f8a4b4da73eb08e943be09538c0mtkleininline Sk4px Sk4px::alphas() const {
608a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein    static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian.");
618a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein    return Sk16b(this->kth< 3>(), this->kth< 3>(), this->kth< 3>(), this->kth< 3>(),
628a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein                 this->kth< 7>(), this->kth< 7>(), this->kth< 7>(), this->kth< 7>(),
638a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein                 this->kth<11>(), this->kth<11>(), this->kth<11>(), this->kth<11>(),
648a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein                 this->kth<15>(), this->kth<15>(), this->kth<15>(), this->kth<15>());
658a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein}
668a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein
678a90edc2a58a4f8a4b4da73eb08e943be09538c0mtkleininline Sk4px Sk4px::Load4Alphas(const SkAlpha a[4]) {
688a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein    return Sk16b(a[0], a[0], a[0], a[0],
698a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein                 a[1], a[1], a[1], a[1],
708a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein                 a[2], a[2], a[2], a[2],
718a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein                 a[3], a[3], a[3], a[3]);
728a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein}
738a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein
748a90edc2a58a4f8a4b4da73eb08e943be09538c0mtkleininline Sk4px Sk4px::Load2Alphas(const SkAlpha a[2]) {
758a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein    return Sk16b(a[0], a[0], a[0], a[0],
768a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein                 a[1], a[1], a[1], a[1],
778a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein                 0,0,0,0,
788a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein                 0,0,0,0);
798a90edc2a58a4f8a4b4da73eb08e943be09538c0mtklein}
800135a41e095a433414e21e37b277dab7dcbec373mtklein
810135a41e095a433414e21e37b277dab7dcbec373mtkleininline Sk4px Sk4px::zeroAlphas() const {
820135a41e095a433414e21e37b277dab7dcbec373mtklein    static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian.");
830135a41e095a433414e21e37b277dab7dcbec373mtklein    return Sk16b(this->kth< 0>(), this->kth< 1>(), this->kth< 2>(), 0,
840135a41e095a433414e21e37b277dab7dcbec373mtklein                 this->kth< 4>(), this->kth< 5>(), this->kth< 6>(), 0,
850135a41e095a433414e21e37b277dab7dcbec373mtklein                 this->kth< 8>(), this->kth< 9>(), this->kth<10>(), 0,
860135a41e095a433414e21e37b277dab7dcbec373mtklein                 this->kth<12>(), this->kth<13>(), this->kth<14>(), 0);
870135a41e095a433414e21e37b277dab7dcbec373mtklein}
880135a41e095a433414e21e37b277dab7dcbec373mtklein
890135a41e095a433414e21e37b277dab7dcbec373mtkleininline Sk4px Sk4px::zeroColors() const {
900135a41e095a433414e21e37b277dab7dcbec373mtklein    static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian.");
910135a41e095a433414e21e37b277dab7dcbec373mtklein    return Sk16b(0,0,0, this->kth< 3>(),
920135a41e095a433414e21e37b277dab7dcbec373mtklein                 0,0,0, this->kth< 7>(),
930135a41e095a433414e21e37b277dab7dcbec373mtklein                 0,0,0, this->kth<11>(),
940135a41e095a433414e21e37b277dab7dcbec373mtklein                 0,0,0, this->kth<15>());
950135a41e095a433414e21e37b277dab7dcbec373mtklein}
960135a41e095a433414e21e37b277dab7dcbec373mtklein
97