| /* |
| * Copyright (c) 2014 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <arm_neon.h> |
| |
| #include "./vpx_config.h" |
| |
| #include "vpx/vpx_integer.h" |
| |
| unsigned int vpx_sad8x16_neon( |
| unsigned char *src_ptr, |
| int src_stride, |
| unsigned char *ref_ptr, |
| int ref_stride) { |
| uint8x8_t d0, d8; |
| uint16x8_t q12; |
| uint32x4_t q1; |
| uint64x2_t q3; |
| uint32x2_t d5; |
| int i; |
| |
| d0 = vld1_u8(src_ptr); |
| src_ptr += src_stride; |
| d8 = vld1_u8(ref_ptr); |
| ref_ptr += ref_stride; |
| q12 = vabdl_u8(d0, d8); |
| |
| for (i = 0; i < 15; i++) { |
| d0 = vld1_u8(src_ptr); |
| src_ptr += src_stride; |
| d8 = vld1_u8(ref_ptr); |
| ref_ptr += ref_stride; |
| q12 = vabal_u8(q12, d0, d8); |
| } |
| |
| q1 = vpaddlq_u16(q12); |
| q3 = vpaddlq_u32(q1); |
| d5 = vadd_u32(vreinterpret_u32_u64(vget_low_u64(q3)), |
| vreinterpret_u32_u64(vget_high_u64(q3))); |
| |
| return vget_lane_u32(d5, 0); |
| } |
| |
| unsigned int vpx_sad4x4_neon( |
| unsigned char *src_ptr, |
| int src_stride, |
| unsigned char *ref_ptr, |
| int ref_stride) { |
| uint8x8_t d0, d8; |
| uint16x8_t q12; |
| uint32x2_t d1; |
| uint64x1_t d3; |
| int i; |
| |
| d0 = vld1_u8(src_ptr); |
| src_ptr += src_stride; |
| d8 = vld1_u8(ref_ptr); |
| ref_ptr += ref_stride; |
| q12 = vabdl_u8(d0, d8); |
| |
| for (i = 0; i < 3; i++) { |
| d0 = vld1_u8(src_ptr); |
| src_ptr += src_stride; |
| d8 = vld1_u8(ref_ptr); |
| ref_ptr += ref_stride; |
| q12 = vabal_u8(q12, d0, d8); |
| } |
| |
| d1 = vpaddl_u16(vget_low_u16(q12)); |
| d3 = vpaddl_u32(d1); |
| |
| return vget_lane_u32(vreinterpret_u32_u64(d3), 0); |
| } |
| |
| unsigned int vpx_sad16x8_neon( |
| unsigned char *src_ptr, |
| int src_stride, |
| unsigned char *ref_ptr, |
| int ref_stride) { |
| uint8x16_t q0, q4; |
| uint16x8_t q12, q13; |
| uint32x4_t q1; |
| uint64x2_t q3; |
| uint32x2_t d5; |
| int i; |
| |
| q0 = vld1q_u8(src_ptr); |
| src_ptr += src_stride; |
| q4 = vld1q_u8(ref_ptr); |
| ref_ptr += ref_stride; |
| q12 = vabdl_u8(vget_low_u8(q0), vget_low_u8(q4)); |
| q13 = vabdl_u8(vget_high_u8(q0), vget_high_u8(q4)); |
| |
| for (i = 0; i < 7; i++) { |
| q0 = vld1q_u8(src_ptr); |
| src_ptr += src_stride; |
| q4 = vld1q_u8(ref_ptr); |
| ref_ptr += ref_stride; |
| q12 = vabal_u8(q12, vget_low_u8(q0), vget_low_u8(q4)); |
| q13 = vabal_u8(q13, vget_high_u8(q0), vget_high_u8(q4)); |
| } |
| |
| q12 = vaddq_u16(q12, q13); |
| q1 = vpaddlq_u16(q12); |
| q3 = vpaddlq_u32(q1); |
| d5 = vadd_u32(vreinterpret_u32_u64(vget_low_u64(q3)), |
| vreinterpret_u32_u64(vget_high_u64(q3))); |
| |
| return vget_lane_u32(d5, 0); |
| } |
| |
| static INLINE unsigned int horizontal_long_add_16x8(const uint16x8_t vec_lo, |
| const uint16x8_t vec_hi) { |
| const uint32x4_t vec_l_lo = vaddl_u16(vget_low_u16(vec_lo), |
| vget_high_u16(vec_lo)); |
| const uint32x4_t vec_l_hi = vaddl_u16(vget_low_u16(vec_hi), |
| vget_high_u16(vec_hi)); |
| const uint32x4_t a = vaddq_u32(vec_l_lo, vec_l_hi); |
| const uint64x2_t b = vpaddlq_u32(a); |
| const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)), |
| vreinterpret_u32_u64(vget_high_u64(b))); |
| return vget_lane_u32(c, 0); |
| } |
| static INLINE unsigned int horizontal_add_16x8(const uint16x8_t vec_16x8) { |
| const uint32x4_t a = vpaddlq_u16(vec_16x8); |
| const uint64x2_t b = vpaddlq_u32(a); |
| const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)), |
| vreinterpret_u32_u64(vget_high_u64(b))); |
| return vget_lane_u32(c, 0); |
| } |
| |
| unsigned int vpx_sad64x64_neon(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride) { |
| int i; |
| uint16x8_t vec_accum_lo = vdupq_n_u16(0); |
| uint16x8_t vec_accum_hi = vdupq_n_u16(0); |
| for (i = 0; i < 64; ++i) { |
| const uint8x16_t vec_src_00 = vld1q_u8(src); |
| const uint8x16_t vec_src_16 = vld1q_u8(src + 16); |
| const uint8x16_t vec_src_32 = vld1q_u8(src + 32); |
| const uint8x16_t vec_src_48 = vld1q_u8(src + 48); |
| const uint8x16_t vec_ref_00 = vld1q_u8(ref); |
| const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16); |
| const uint8x16_t vec_ref_32 = vld1q_u8(ref + 32); |
| const uint8x16_t vec_ref_48 = vld1q_u8(ref + 48); |
| src += src_stride; |
| ref += ref_stride; |
| vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_00), |
| vget_low_u8(vec_ref_00)); |
| vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_00), |
| vget_high_u8(vec_ref_00)); |
| vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_16), |
| vget_low_u8(vec_ref_16)); |
| vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_16), |
| vget_high_u8(vec_ref_16)); |
| vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_32), |
| vget_low_u8(vec_ref_32)); |
| vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_32), |
| vget_high_u8(vec_ref_32)); |
| vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_48), |
| vget_low_u8(vec_ref_48)); |
| vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_48), |
| vget_high_u8(vec_ref_48)); |
| } |
| return horizontal_long_add_16x8(vec_accum_lo, vec_accum_hi); |
| } |
| |
| unsigned int vpx_sad32x32_neon(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride) { |
| int i; |
| uint16x8_t vec_accum_lo = vdupq_n_u16(0); |
| uint16x8_t vec_accum_hi = vdupq_n_u16(0); |
| |
| for (i = 0; i < 32; ++i) { |
| const uint8x16_t vec_src_00 = vld1q_u8(src); |
| const uint8x16_t vec_src_16 = vld1q_u8(src + 16); |
| const uint8x16_t vec_ref_00 = vld1q_u8(ref); |
| const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16); |
| src += src_stride; |
| ref += ref_stride; |
| vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_00), |
| vget_low_u8(vec_ref_00)); |
| vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_00), |
| vget_high_u8(vec_ref_00)); |
| vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_16), |
| vget_low_u8(vec_ref_16)); |
| vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_16), |
| vget_high_u8(vec_ref_16)); |
| } |
| return horizontal_add_16x8(vaddq_u16(vec_accum_lo, vec_accum_hi)); |
| } |
| |
| unsigned int vpx_sad16x16_neon(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride) { |
| int i; |
| uint16x8_t vec_accum_lo = vdupq_n_u16(0); |
| uint16x8_t vec_accum_hi = vdupq_n_u16(0); |
| |
| for (i = 0; i < 16; ++i) { |
| const uint8x16_t vec_src = vld1q_u8(src); |
| const uint8x16_t vec_ref = vld1q_u8(ref); |
| src += src_stride; |
| ref += ref_stride; |
| vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src), |
| vget_low_u8(vec_ref)); |
| vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src), |
| vget_high_u8(vec_ref)); |
| } |
| return horizontal_add_16x8(vaddq_u16(vec_accum_lo, vec_accum_hi)); |
| } |
| |
| unsigned int vpx_sad8x8_neon(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride) { |
| int i; |
| uint16x8_t vec_accum = vdupq_n_u16(0); |
| |
| for (i = 0; i < 8; ++i) { |
| const uint8x8_t vec_src = vld1_u8(src); |
| const uint8x8_t vec_ref = vld1_u8(ref); |
| src += src_stride; |
| ref += ref_stride; |
| vec_accum = vabal_u8(vec_accum, vec_src, vec_ref); |
| } |
| return horizontal_add_16x8(vec_accum); |
| } |
