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 8inline Sk4px::Sk4px(SkPMColor px) : INHERITED((uint8x16_t)vdupq_n_u32(px)) {} 9 10inline Sk4px Sk4px::Load4(const SkPMColor px[4]) { 11 return Sk16b((uint8x16_t)vld1q_u32(px)); 12} 13inline Sk4px Sk4px::Load2(const SkPMColor px[2]) { 14 uint32x2_t px2 = vld1_u32(px); 15 return Sk16b((uint8x16_t)vcombine_u32(px2, px2)); 16} 17inline Sk4px Sk4px::Load1(const SkPMColor px[1]) { 18 return Sk16b((uint8x16_t)vdupq_n_u32(*px)); 19} 20 21inline void Sk4px::store4(SkPMColor px[4]) const { 22 vst1q_u32(px, (uint32x4_t)this->fVec); 23} 24inline void Sk4px::store2(SkPMColor px[2]) const { 25 vst1_u32(px, (uint32x2_t)vget_low_u8(this->fVec)); 26} 27inline void Sk4px::store1(SkPMColor px[1]) const { 28 vst1q_lane_u32(px, (uint32x4_t)this->fVec, 0); 29} 30 31inline 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 36inline 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 41inline 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 46inline 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 52inline 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 60inline 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 72inline 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 82inline Sk4px Sk4px::zeroColors() const { 83 return Sk16b(vandq_u8(this->fVec, (uint8x16_t)vdupq_n_u32(0xFF << SK_A32_SHIFT))); 84} 85 86inline 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