diff options
Diffstat (limited to 'vp10/encoder/arm/neon/avg_neon.c')
| -rw-r--r-- | vp10/encoder/arm/neon/avg_neon.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/vp10/encoder/arm/neon/avg_neon.c b/vp10/encoder/arm/neon/avg_neon.c deleted file mode 100644 index c4ec5c4a7..000000000 --- a/vp10/encoder/arm/neon/avg_neon.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * Copyright (c) 2015 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 <assert.h> - -#include "./vp10_rtcd.h" -#include "./vpx_config.h" - -#include "vpx/vpx_integer.h" - -static INLINE unsigned int horizontal_add_u16x8(const uint16x8_t v_16x8) { - const uint32x4_t a = vpaddlq_u16(v_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 vp10_avg_8x8_neon(const uint8_t *s, int p) { - uint8x8_t v_s0 = vld1_u8(s); - const uint8x8_t v_s1 = vld1_u8(s + p); - uint16x8_t v_sum = vaddl_u8(v_s0, v_s1); - - v_s0 = vld1_u8(s + 2 * p); - v_sum = vaddw_u8(v_sum, v_s0); - - v_s0 = vld1_u8(s + 3 * p); - v_sum = vaddw_u8(v_sum, v_s0); - - v_s0 = vld1_u8(s + 4 * p); - v_sum = vaddw_u8(v_sum, v_s0); - - v_s0 = vld1_u8(s + 5 * p); - v_sum = vaddw_u8(v_sum, v_s0); - - v_s0 = vld1_u8(s + 6 * p); - v_sum = vaddw_u8(v_sum, v_s0); - - v_s0 = vld1_u8(s + 7 * p); - v_sum = vaddw_u8(v_sum, v_s0); - - return (horizontal_add_u16x8(v_sum) + 32) >> 6; -} - -void vp10_int_pro_row_neon(int16_t hbuf[16], uint8_t const *ref, - const int ref_stride, const int height) { - int i; - uint16x8_t vec_sum_lo = vdupq_n_u16(0); - uint16x8_t vec_sum_hi = vdupq_n_u16(0); - const int shift_factor = ((height >> 5) + 3) * -1; - const int16x8_t vec_shift = vdupq_n_s16(shift_factor); - - for (i = 0; i < height; i += 8) { - const uint8x16_t vec_row1 = vld1q_u8(ref); - const uint8x16_t vec_row2 = vld1q_u8(ref + ref_stride); - const uint8x16_t vec_row3 = vld1q_u8(ref + ref_stride * 2); - const uint8x16_t vec_row4 = vld1q_u8(ref + ref_stride * 3); - const uint8x16_t vec_row5 = vld1q_u8(ref + ref_stride * 4); - const uint8x16_t vec_row6 = vld1q_u8(ref + ref_stride * 5); - const uint8x16_t vec_row7 = vld1q_u8(ref + ref_stride * 6); - const uint8x16_t vec_row8 = vld1q_u8(ref + ref_stride * 7); - - vec_sum_lo = vaddw_u8(vec_sum_lo, vget_low_u8(vec_row1)); - vec_sum_hi = vaddw_u8(vec_sum_hi, vget_high_u8(vec_row1)); - - vec_sum_lo = vaddw_u8(vec_sum_lo, vget_low_u8(vec_row2)); - vec_sum_hi = vaddw_u8(vec_sum_hi, vget_high_u8(vec_row2)); - - vec_sum_lo = vaddw_u8(vec_sum_lo, vget_low_u8(vec_row3)); - vec_sum_hi = vaddw_u8(vec_sum_hi, vget_high_u8(vec_row3)); - - vec_sum_lo = vaddw_u8(vec_sum_lo, vget_low_u8(vec_row4)); - vec_sum_hi = vaddw_u8(vec_sum_hi, vget_high_u8(vec_row4)); - - vec_sum_lo = vaddw_u8(vec_sum_lo, vget_low_u8(vec_row5)); - vec_sum_hi = vaddw_u8(vec_sum_hi, vget_high_u8(vec_row5)); - - vec_sum_lo = vaddw_u8(vec_sum_lo, vget_low_u8(vec_row6)); - vec_sum_hi = vaddw_u8(vec_sum_hi, vget_high_u8(vec_row6)); - - vec_sum_lo = vaddw_u8(vec_sum_lo, vget_low_u8(vec_row7)); - vec_sum_hi = vaddw_u8(vec_sum_hi, vget_high_u8(vec_row7)); - - vec_sum_lo = vaddw_u8(vec_sum_lo, vget_low_u8(vec_row8)); - vec_sum_hi = vaddw_u8(vec_sum_hi, vget_high_u8(vec_row8)); - - ref += ref_stride * 8; - } - - vec_sum_lo = vshlq_u16(vec_sum_lo, vec_shift); - vec_sum_hi = vshlq_u16(vec_sum_hi, vec_shift); - - vst1q_s16(hbuf, vreinterpretq_s16_u16(vec_sum_lo)); - hbuf += 8; - vst1q_s16(hbuf, vreinterpretq_s16_u16(vec_sum_hi)); -} - -int16_t vp10_int_pro_col_neon(uint8_t const *ref, const int width) { - int i; - uint16x8_t vec_sum = vdupq_n_u16(0); - - for (i = 0; i < width; i += 16) { - const uint8x16_t vec_row = vld1q_u8(ref); - vec_sum = vaddw_u8(vec_sum, vget_low_u8(vec_row)); - vec_sum = vaddw_u8(vec_sum, vget_high_u8(vec_row)); - ref += 16; - } - - return horizontal_add_u16x8(vec_sum); -} - -// ref, src = [0, 510] - max diff = 16-bits -// bwl = {2, 3, 4}, width = {16, 32, 64} -int vp10_vector_var_neon(int16_t const *ref, int16_t const *src, const int bwl) { - int width = 4 << bwl; - int32x4_t sse = vdupq_n_s32(0); - int16x8_t total = vdupq_n_s16(0); - - assert(width >= 8); - assert((width % 8) == 0); - - do { - const int16x8_t r = vld1q_s16(ref); - const int16x8_t s = vld1q_s16(src); - const int16x8_t diff = vsubq_s16(r, s); // [-510, 510], 10 bits. - const int16x4_t diff_lo = vget_low_s16(diff); - const int16x4_t diff_hi = vget_high_s16(diff); - sse = vmlal_s16(sse, diff_lo, diff_lo); // dynamic range 26 bits. - sse = vmlal_s16(sse, diff_hi, diff_hi); - total = vaddq_s16(total, diff); // dynamic range 16 bits. - - ref += 8; - src += 8; - width -= 8; - } while (width != 0); - - { - // Note: 'total''s pairwise addition could be implemented similarly to - // horizontal_add_u16x8(), but one less vpaddl with 'total' when paired - // with the summation of 'sse' performed better on a Cortex-A15. - const int32x4_t t0 = vpaddlq_s16(total); // cascading summation of 'total' - const int32x2_t t1 = vadd_s32(vget_low_s32(t0), vget_high_s32(t0)); - const int32x2_t t2 = vpadd_s32(t1, t1); - const int t = vget_lane_s32(t2, 0); - const int64x2_t s0 = vpaddlq_s32(sse); // cascading summation of 'sse'. - const int32x2_t s1 = vadd_s32(vreinterpret_s32_s64(vget_low_s64(s0)), - vreinterpret_s32_s64(vget_high_s64(s0))); - const int s = vget_lane_s32(s1, 0); - const int shift_factor = bwl + 2; - return s - ((t * t) >> shift_factor); - } -} |