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