131 lines
5.4 KiB
C
131 lines
5.4 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 "./vp9_rtcd.h"
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#include "./vpx_config.h"
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#include "vpx/vpx_integer.h"
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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 = vaddl_u16(vget_low_u16(vec_lo),
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vget_high_u16(vec_lo));
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const uint32x4_t vec_l_hi = vaddl_u16(vget_low_u16(vec_hi),
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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 vp9_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 vp9_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 vp9_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 = vabal_u8(vec_accum_lo, vget_low_u8(vec_src),
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vget_low_u8(vec_ref));
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vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src),
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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 vp9_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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