1 /*
2 * Copyright 2015 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
Sk4px(SkPMColor px)8 inline Sk4px::Sk4px(SkPMColor px) : INHERITED((uint8x16_t)vdupq_n_u32(px)) {}
9
Load4(const SkPMColor px[4])10 inline Sk4px Sk4px::Load4(const SkPMColor px[4]) {
11 return Sk16b((uint8x16_t)vld1q_u32(px));
12 }
Load2(const SkPMColor px[2])13 inline Sk4px Sk4px::Load2(const SkPMColor px[2]) {
14 uint32x2_t px2 = vld1_u32(px);
15 return Sk16b((uint8x16_t)vcombine_u32(px2, px2));
16 }
Load1(const SkPMColor px[1])17 inline Sk4px Sk4px::Load1(const SkPMColor px[1]) {
18 return Sk16b((uint8x16_t)vdupq_n_u32(*px));
19 }
20
store4(SkPMColor px[4])21 inline void Sk4px::store4(SkPMColor px[4]) const {
22 vst1q_u32(px, (uint32x4_t)this->fVec);
23 }
store2(SkPMColor px[2])24 inline void Sk4px::store2(SkPMColor px[2]) const {
25 vst1_u32(px, (uint32x2_t)vget_low_u8(this->fVec));
26 }
store1(SkPMColor px[1])27 inline void Sk4px::store1(SkPMColor px[1]) const {
28 vst1q_lane_u32(px, (uint32x4_t)this->fVec, 0);
29 }
30
widenLo()31 inline Sk4px::Wide Sk4px::widenLo() const {
32 return Sk16h(vmovl_u8(vget_low_u8 (this->fVec)),
33 vmovl_u8(vget_high_u8(this->fVec)));
34 }
35
widenHi()36 inline Sk4px::Wide Sk4px::widenHi() const {
37 return Sk16h(vshll_n_u8(vget_low_u8 (this->fVec), 8),
38 vshll_n_u8(vget_high_u8(this->fVec), 8));
39 }
40
mulWiden(const Sk16b & other)41 inline Sk4px::Wide Sk4px::mulWiden(const Sk16b& other) const {
42 return Sk16h(vmull_u8(vget_low_u8 (this->fVec), vget_low_u8 (other.fVec)),
43 vmull_u8(vget_high_u8(this->fVec), vget_high_u8(other.fVec)));
44 }
45
addNarrowHi(const Sk16h & other)46 inline Sk4px Sk4px::Wide::addNarrowHi(const Sk16h& other) const {
47 const Sk4px::Wide o(other); // Should be no code, but allows us to access fLo, fHi.
48 return Sk16b(vcombine_u8(vaddhn_u16(this->fLo.fVec, o.fLo.fVec),
49 vaddhn_u16(this->fHi.fVec, o.fHi.fVec)));
50 }
51
alphas()52 inline Sk4px Sk4px::alphas() const {
53 static_assert(SK_A32_SHIFT == 24, "This method assumes little-endian.");
54 auto as = vshrq_n_u32((uint32x4_t)this->fVec, 24); // ___3 ___2 ___1 ___0
55 as = vorrq_u32(as, vshlq_n_u32(as, 8)); // __33 __22 __11 __11
56 as = vorrq_u32(as, vshlq_n_u32(as, 16)); // 3333 2222 1111 1111
57 return Sk16b((uint8x16_t)as);
58 }
59
Load4Alphas(const SkAlpha a[4])60 inline Sk4px Sk4px::Load4Alphas(const SkAlpha a[4]) {
61 uint8x16_t a8 = vdupq_n_u8(0); // ____ ____ ____ ____
62 a8 = vld1q_lane_u8(a+0, a8, 0); // ____ ____ ____ ___0
63 a8 = vld1q_lane_u8(a+1, a8, 4); // ____ ____ ___1 ___0
64 a8 = vld1q_lane_u8(a+2, a8, 8); // ____ ___2 ___1 ___0
65 a8 = vld1q_lane_u8(a+3, a8, 12); // ___3 ___2 ___1 ___0
66 auto a32 = (uint32x4_t)a8; //
67 a32 = vorrq_u32(a32, vshlq_n_u32(a32, 8)); // __33 __22 __11 __00
68 a32 = vorrq_u32(a32, vshlq_n_u32(a32, 16)); // 3333 2222 1111 0000
69 return Sk16b((uint8x16_t)a32);
70 }
71
Load2Alphas(const SkAlpha a[2])72 inline Sk4px Sk4px::Load2Alphas(const SkAlpha a[2]) {
73 uint8x16_t a8 = vdupq_n_u8(0); // ____ ____ ____ ____
74 a8 = vld1q_lane_u8(a+0, a8, 0); // ____ ____ ____ ___0
75 a8 = vld1q_lane_u8(a+1, a8, 4); // ____ ____ ___1 ___0
76 auto a32 = (uint32x4_t)a8; //
77 a32 = vorrq_u32(a32, vshlq_n_u32(a32, 8)); // ____ ____ __11 __00
78 a32 = vorrq_u32(a32, vshlq_n_u32(a32, 16)); // ____ ____ 1111 0000
79 return Sk16b((uint8x16_t)a32);
80 }
81
zeroColors()82 inline Sk4px Sk4px::zeroColors() const {
83 return Sk16b(vandq_u8(this->fVec, (uint8x16_t)vdupq_n_u32(0xFF << SK_A32_SHIFT)));
84 }
85
zeroAlphas()86 inline Sk4px Sk4px::zeroAlphas() const {
87 // vbic(a,b) == a & ~b
88 return Sk16b(vbicq_u8(this->fVec, (uint8x16_t)vdupq_n_u32(0xFF << SK_A32_SHIFT)));
89 }
90
91