1 /* 2 * Copyright (c) 2014 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include <arm_neon.h> 12 #include "./vp9_rtcd.h" 13 #include "./vpx_config.h" 14 15 #include "vpx/vpx_integer.h" 16 17 static INLINE unsigned int horizontal_long_add_16x8(const uint16x8_t vec_lo, 18 const uint16x8_t vec_hi) { 19 const uint32x4_t vec_l_lo = vaddl_u16(vget_low_u16(vec_lo), 20 vget_high_u16(vec_lo)); 21 const uint32x4_t vec_l_hi = vaddl_u16(vget_low_u16(vec_hi), 22 vget_high_u16(vec_hi)); 23 const uint32x4_t a = vaddq_u32(vec_l_lo, vec_l_hi); 24 const uint64x2_t b = vpaddlq_u32(a); 25 const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)), 26 vreinterpret_u32_u64(vget_high_u64(b))); 27 return vget_lane_u32(c, 0); 28 } 29 static INLINE unsigned int horizontal_add_16x8(const uint16x8_t vec_16x8) { 30 const uint32x4_t a = vpaddlq_u16(vec_16x8); 31 const uint64x2_t b = vpaddlq_u32(a); 32 const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)), 33 vreinterpret_u32_u64(vget_high_u64(b))); 34 return vget_lane_u32(c, 0); 35 } 36 37 unsigned int vp9_sad64x64_neon(const uint8_t *src, int src_stride, 38 const uint8_t *ref, int ref_stride) { 39 int i; 40 uint16x8_t vec_accum_lo = vdupq_n_u16(0); 41 uint16x8_t vec_accum_hi = vdupq_n_u16(0); 42 for (i = 0; i < 64; ++i) { 43 const uint8x16_t vec_src_00 = vld1q_u8(src); 44 const uint8x16_t vec_src_16 = vld1q_u8(src + 16); 45 const uint8x16_t vec_src_32 = vld1q_u8(src + 32); 46 const uint8x16_t vec_src_48 = vld1q_u8(src + 48); 47 const uint8x16_t vec_ref_00 = vld1q_u8(ref); 48 const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16); 49 const uint8x16_t vec_ref_32 = vld1q_u8(ref + 32); 50 const uint8x16_t vec_ref_48 = vld1q_u8(ref + 48); 51 src += src_stride; 52 ref += ref_stride; 53 vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_00), 54 vget_low_u8(vec_ref_00)); 55 vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_00), 56 vget_high_u8(vec_ref_00)); 57 vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_16), 58 vget_low_u8(vec_ref_16)); 59 vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_16), 60 vget_high_u8(vec_ref_16)); 61 vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_32), 62 vget_low_u8(vec_ref_32)); 63 vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_32), 64 vget_high_u8(vec_ref_32)); 65 vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_48), 66 vget_low_u8(vec_ref_48)); 67 vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_48), 68 vget_high_u8(vec_ref_48)); 69 } 70 return horizontal_long_add_16x8(vec_accum_lo, vec_accum_hi); 71 } 72 73 unsigned int vp9_sad32x32_neon(const uint8_t *src, int src_stride, 74 const uint8_t *ref, int ref_stride) { 75 int i; 76 uint16x8_t vec_accum_lo = vdupq_n_u16(0); 77 uint16x8_t vec_accum_hi = vdupq_n_u16(0); 78 79 for (i = 0; i < 32; ++i) { 80 const uint8x16_t vec_src_00 = vld1q_u8(src); 81 const uint8x16_t vec_src_16 = vld1q_u8(src + 16); 82 const uint8x16_t vec_ref_00 = vld1q_u8(ref); 83 const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16); 84 src += src_stride; 85 ref += ref_stride; 86 vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_00), 87 vget_low_u8(vec_ref_00)); 88 vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_00), 89 vget_high_u8(vec_ref_00)); 90 vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_16), 91 vget_low_u8(vec_ref_16)); 92 vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_16), 93 vget_high_u8(vec_ref_16)); 94 } 95 return horizontal_add_16x8(vaddq_u16(vec_accum_lo, vec_accum_hi)); 96 } 97 98 unsigned int vp9_sad16x16_neon(const uint8_t *src, int src_stride, 99 const uint8_t *ref, int ref_stride) { 100 int i; 101 uint16x8_t vec_accum_lo = vdupq_n_u16(0); 102 uint16x8_t vec_accum_hi = vdupq_n_u16(0); 103 104 for (i = 0; i < 16; ++i) { 105 const uint8x16_t vec_src = vld1q_u8(src); 106 const uint8x16_t vec_ref = vld1q_u8(ref); 107 src += src_stride; 108 ref += ref_stride; 109 vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src), 110 vget_low_u8(vec_ref)); 111 vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src), 112 vget_high_u8(vec_ref)); 113 } 114 return horizontal_add_16x8(vaddq_u16(vec_accum_lo, vec_accum_hi)); 115 } 116 117 unsigned int vp9_sad8x8_neon(const uint8_t *src, int src_stride, 118 const uint8_t *ref, int ref_stride) { 119 int i; 120 uint16x8_t vec_accum = vdupq_n_u16(0); 121 122 for (i = 0; i < 8; ++i) { 123 const uint8x8_t vec_src = vld1_u8(src); 124 const uint8x8_t vec_ref = vld1_u8(ref); 125 src += src_stride; 126 ref += ref_stride; 127 vec_accum = vabal_u8(vec_accum, vec_src, vec_ref); 128 } 129 return horizontal_add_16x8(vec_accum); 130 } 131
