ref: 14bc7731996cd27f1d2193d2f841e92ae8fad703
dir: /vp8/common/arm/neon/vp8_subpixelvariance_neon.c/
/* * 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_ports/mem.h" #include "vpx/vpx_integer.h" static const uint16_t bilinear_taps_coeff[8][2] = { {128, 0}, {112, 16}, { 96, 32}, { 80, 48}, { 64, 64}, { 48, 80}, { 32, 96}, { 16, 112} }; unsigned int vp8_sub_pixel_variance16x16_neon_func( const unsigned char *src_ptr, int src_pixels_per_line, int xoffset, int yoffset, const unsigned char *dst_ptr, int dst_pixels_per_line, unsigned int *sse) { int i; DECLARE_ALIGNED_ARRAY(16, unsigned char, tmp, 528); unsigned char *tmpp; unsigned char *tmpp2; uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8; uint8x8_t d10u8, d11u8, d12u8, d13u8, d14u8, d15u8, d16u8, d17u8, d18u8; uint8x8_t d19u8, d20u8, d21u8; int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16; uint32x2_t d0u32, d10u32; int64x1_t d0s64, d1s64, d2s64, d3s64; uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8, q7u8, q8u8, q9u8; uint8x16_t q10u8, q11u8, q12u8, q13u8, q14u8, q15u8; uint16x8_t q1u16, q2u16, q3u16, q4u16, q5u16, q6u16, q7u16, q8u16; uint16x8_t q9u16, q10u16, q11u16, q12u16, q13u16, q14u16; int32x4_t q8s32, q9s32, q10s32; int64x2_t q0s64, q1s64, q5s64; tmpp2 = tmp + 272; tmpp = tmp; if (xoffset == 0) { // secondpass_bfilter16x16_only d0u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][0]); d1u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][1]); q11u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line; for (i = 4; i > 0; i--) { q12u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line; q13u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line; q14u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line; q15u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line; __builtin_prefetch(src_ptr); __builtin_prefetch(src_ptr + src_pixels_per_line); __builtin_prefetch(src_ptr + src_pixels_per_line * 2); q1u16 = vmull_u8(vget_low_u8(q11u8), d0u8); q2u16 = vmull_u8(vget_high_u8(q11u8), d0u8); q3u16 = vmull_u8(vget_low_u8(q12u8), d0u8); q4u16 = vmull_u8(vget_high_u8(q12u8), d0u8); q5u16 = vmull_u8(vget_low_u8(q13u8), d0u8); q6u16 = vmull_u8(vget_high_u8(q13u8), d0u8); q7u16 = vmull_u8(vget_low_u8(q14u8), d0u8); q8u16 = vmull_u8(vget_high_u8(q14u8), d0u8); q1u16 = vmlal_u8(q1u16, vget_low_u8(q12u8), d1u8); q2u16 = vmlal_u8(q2u16, vget_high_u8(q12u8), d1u8); q3u16 = vmlal_u8(q3u16, vget_low_u8(q13u8), d1u8); q4u16 = vmlal_u8(q4u16, vget_high_u8(q13u8), d1u8); q5u16 = vmlal_u8(q5u16, vget_low_u8(q14u8), d1u8); q6u16 = vmlal_u8(q6u16, vget_high_u8(q14u8), d1u8); q7u16 = vmlal_u8(q7u16, vget_low_u8(q15u8), d1u8); q8u16 = vmlal_u8(q8u16, vget_high_u8(q15u8), d1u8); d2u8 = vqrshrn_n_u16(q1u16, 7); d3u8 = vqrshrn_n_u16(q2u16, 7); d4u8 = vqrshrn_n_u16(q3u16, 7); d5u8 = vqrshrn_n_u16(q4u16, 7); d6u8 = vqrshrn_n_u16(q5u16, 7); d7u8 = vqrshrn_n_u16(q6u16, 7); d8u8 = vqrshrn_n_u16(q7u16, 7); d9u8 = vqrshrn_n_u16(q8u16, 7); q1u8 = vcombine_u8(d2u8, d3u8); q2u8 = vcombine_u8(d4u8, d5u8); q3u8 = vcombine_u8(d6u8, d7u8); q4u8 = vcombine_u8(d8u8, d9u8); q11u8 = q15u8; vst1q_u8((uint8_t *)tmpp2, q1u8); tmpp2 += 16; vst1q_u8((uint8_t *)tmpp2, q2u8); tmpp2 += 16; vst1q_u8((uint8_t *)tmpp2, q3u8); tmpp2 += 16; vst1q_u8((uint8_t *)tmpp2, q4u8); tmpp2 += 16; } } else if (yoffset == 0) { // firstpass_bfilter16x16_only d0u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][0]); d1u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][1]); for (i = 4; i > 0 ; i--) { d2u8 = vld1_u8(src_ptr); d3u8 = vld1_u8(src_ptr + 8); d4u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; d5u8 = vld1_u8(src_ptr); d6u8 = vld1_u8(src_ptr + 8); d7u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; d8u8 = vld1_u8(src_ptr); d9u8 = vld1_u8(src_ptr + 8); d10u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; d11u8 = vld1_u8(src_ptr); d12u8 = vld1_u8(src_ptr + 8); d13u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; __builtin_prefetch(src_ptr); __builtin_prefetch(src_ptr + src_pixels_per_line); __builtin_prefetch(src_ptr + src_pixels_per_line * 2); q7u16 = vmull_u8(d2u8, d0u8); q8u16 = vmull_u8(d3u8, d0u8); q9u16 = vmull_u8(d5u8, d0u8); q10u16 = vmull_u8(d6u8, d0u8); q11u16 = vmull_u8(d8u8, d0u8); q12u16 = vmull_u8(d9u8, d0u8); q13u16 = vmull_u8(d11u8, d0u8); q14u16 = vmull_u8(d12u8, d0u8); d2u8 = vext_u8(d2u8, d3u8, 1); d5u8 = vext_u8(d5u8, d6u8, 1); d8u8 = vext_u8(d8u8, d9u8, 1); d11u8 = vext_u8(d11u8, d12u8, 1); q7u16 = vmlal_u8(q7u16, d2u8, d1u8); q9u16 = vmlal_u8(q9u16, d5u8, d1u8); q11u16 = vmlal_u8(q11u16, d8u8, d1u8); q13u16 = vmlal_u8(q13u16, d11u8, d1u8); d3u8 = vext_u8(d3u8, d4u8, 1); d6u8 = vext_u8(d6u8, d7u8, 1); d9u8 = vext_u8(d9u8, d10u8, 1); d12u8 = vext_u8(d12u8, d13u8, 1); q8u16 = vmlal_u8(q8u16, d3u8, d1u8); q10u16 = vmlal_u8(q10u16, d6u8, d1u8); q12u16 = vmlal_u8(q12u16, d9u8, d1u8); q14u16 = vmlal_u8(q14u16, d12u8, d1u8); d14u8 = vqrshrn_n_u16(q7u16, 7); d15u8 = vqrshrn_n_u16(q8u16, 7); d16u8 = vqrshrn_n_u16(q9u16, 7); d17u8 = vqrshrn_n_u16(q10u16, 7); d18u8 = vqrshrn_n_u16(q11u16, 7); d19u8 = vqrshrn_n_u16(q12u16, 7); d20u8 = vqrshrn_n_u16(q13u16, 7); d21u8 = vqrshrn_n_u16(q14u16, 7); q7u8 = vcombine_u8(d14u8, d15u8); q8u8 = vcombine_u8(d16u8, d17u8); q9u8 = vcombine_u8(d18u8, d19u8); q10u8 = vcombine_u8(d20u8, d21u8); vst1q_u8((uint8_t *)tmpp2, q7u8); tmpp2 += 16; vst1q_u8((uint8_t *)tmpp2, q8u8); tmpp2 += 16; vst1q_u8((uint8_t *)tmpp2, q9u8); tmpp2 += 16; vst1q_u8((uint8_t *)tmpp2, q10u8); tmpp2 += 16; } } else { d0u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][0]); d1u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][1]); d2u8 = vld1_u8(src_ptr); d3u8 = vld1_u8(src_ptr + 8); d4u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; d5u8 = vld1_u8(src_ptr); d6u8 = vld1_u8(src_ptr + 8); d7u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; d8u8 = vld1_u8(src_ptr); d9u8 = vld1_u8(src_ptr + 8); d10u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; d11u8 = vld1_u8(src_ptr); d12u8 = vld1_u8(src_ptr + 8); d13u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; // First Pass: output_height lines x output_width columns (17x16) for (i = 3; i > 0; i--) { q7u16 = vmull_u8(d2u8, d0u8); q8u16 = vmull_u8(d3u8, d0u8); q9u16 = vmull_u8(d5u8, d0u8); q10u16 = vmull_u8(d6u8, d0u8); q11u16 = vmull_u8(d8u8, d0u8); q12u16 = vmull_u8(d9u8, d0u8); q13u16 = vmull_u8(d11u8, d0u8); q14u16 = vmull_u8(d12u8, d0u8); d2u8 = vext_u8(d2u8, d3u8, 1); d5u8 = vext_u8(d5u8, d6u8, 1); d8u8 = vext_u8(d8u8, d9u8, 1); d11u8 = vext_u8(d11u8, d12u8, 1); q7u16 = vmlal_u8(q7u16, d2u8, d1u8); q9u16 = vmlal_u8(q9u16, d5u8, d1u8); q11u16 = vmlal_u8(q11u16, d8u8, d1u8); q13u16 = vmlal_u8(q13u16, d11u8, d1u8); d3u8 = vext_u8(d3u8, d4u8, 1); d6u8 = vext_u8(d6u8, d7u8, 1); d9u8 = vext_u8(d9u8, d10u8, 1); d12u8 = vext_u8(d12u8, d13u8, 1); q8u16 = vmlal_u8(q8u16, d3u8, d1u8); q10u16 = vmlal_u8(q10u16, d6u8, d1u8); q12u16 = vmlal_u8(q12u16, d9u8, d1u8); q14u16 = vmlal_u8(q14u16, d12u8, d1u8); d14u8 = vqrshrn_n_u16(q7u16, 7); d15u8 = vqrshrn_n_u16(q8u16, 7); d16u8 = vqrshrn_n_u16(q9u16, 7); d17u8 = vqrshrn_n_u16(q10u16, 7); d18u8 = vqrshrn_n_u16(q11u16, 7); d19u8 = vqrshrn_n_u16(q12u16, 7); d20u8 = vqrshrn_n_u16(q13u16, 7); d21u8 = vqrshrn_n_u16(q14u16, 7); d2u8 = vld1_u8(src_ptr); d3u8 = vld1_u8(src_ptr + 8); d4u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; d5u8 = vld1_u8(src_ptr); d6u8 = vld1_u8(src_ptr + 8); d7u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; d8u8 = vld1_u8(src_ptr); d9u8 = vld1_u8(src_ptr + 8); d10u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; d11u8 = vld1_u8(src_ptr); d12u8 = vld1_u8(src_ptr + 8); d13u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; q7u8 = vcombine_u8(d14u8, d15u8); q8u8 = vcombine_u8(d16u8, d17u8); q9u8 = vcombine_u8(d18u8, d19u8); q10u8 = vcombine_u8(d20u8, d21u8); vst1q_u8((uint8_t *)tmpp, q7u8); tmpp += 16; vst1q_u8((uint8_t *)tmpp, q8u8); tmpp += 16; vst1q_u8((uint8_t *)tmpp, q9u8); tmpp += 16; vst1q_u8((uint8_t *)tmpp, q10u8); tmpp += 16; } // First-pass filtering for rest 5 lines d14u8 = vld1_u8(src_ptr); d15u8 = vld1_u8(src_ptr + 8); d16u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line; q9u16 = vmull_u8(d2u8, d0u8); q10u16 = vmull_u8(d3u8, d0u8); q11u16 = vmull_u8(d5u8, d0u8); q12u16 = vmull_u8(d6u8, d0u8); q13u16 = vmull_u8(d8u8, d0u8); q14u16 = vmull_u8(d9u8, d0u8); d2u8 = vext_u8(d2u8, d3u8, 1); d5u8 = vext_u8(d5u8, d6u8, 1); d8u8 = vext_u8(d8u8, d9u8, 1); q9u16 = vmlal_u8(q9u16, d2u8, d1u8); q11u16 = vmlal_u8(q11u16, d5u8, d1u8); q13u16 = vmlal_u8(q13u16, d8u8, d1u8); d3u8 = vext_u8(d3u8, d4u8, 1); d6u8 = vext_u8(d6u8, d7u8, 1); d9u8 = vext_u8(d9u8, d10u8, 1); q10u16 = vmlal_u8(q10u16, d3u8, d1u8); q12u16 = vmlal_u8(q12u16, d6u8, d1u8); q14u16 = vmlal_u8(q14u16, d9u8, d1u8); q1u16 = vmull_u8(d11u8, d0u8); q2u16 = vmull_u8(d12u8, d0u8); q3u16 = vmull_u8(d14u8, d0u8); q4u16 = vmull_u8(d15u8, d0u8); d11u8 = vext_u8(d11u8, d12u8, 1); d14u8 = vext_u8(d14u8, d15u8, 1); q1u16 = vmlal_u8(q1u16, d11u8, d1u8); q3u16 = vmlal_u8(q3u16, d14u8, d1u8); d12u8 = vext_u8(d12u8, d13u8, 1); d15u8 = vext_u8(d15u8, d16u8, 1); q2u16 = vmlal_u8(q2u16, d12u8, d1u8); q4u16 = vmlal_u8(q4u16, d15u8, d1u8); d10u8 = vqrshrn_n_u16(q9u16, 7); d11u8 = vqrshrn_n_u16(q10u16, 7); d12u8 = vqrshrn_n_u16(q11u16, 7); d13u8 = vqrshrn_n_u16(q12u16, 7); d14u8 = vqrshrn_n_u16(q13u16, 7); d15u8 = vqrshrn_n_u16(q14u16, 7); d16u8 = vqrshrn_n_u16(q1u16, 7); d17u8 = vqrshrn_n_u16(q2u16, 7); d18u8 = vqrshrn_n_u16(q3u16, 7); d19u8 = vqrshrn_n_u16(q4u16, 7); q5u8 = vcombine_u8(d10u8, d11u8); q6u8 = vcombine_u8(d12u8, d13u8); q7u8 = vcombine_u8(d14u8, d15u8); q8u8 = vcombine_u8(d16u8, d17u8); q9u8 = vcombine_u8(d18u8, d19u8); vst1q_u8((uint8_t *)tmpp, q5u8); tmpp += 16; vst1q_u8((uint8_t *)tmpp, q6u8); tmpp += 16; vst1q_u8((uint8_t *)tmpp, q7u8); tmpp += 16; vst1q_u8((uint8_t *)tmpp, q8u8); tmpp += 16; vst1q_u8((uint8_t *)tmpp, q9u8); // secondpass_filter d0u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][0]); d1u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][1]); tmpp = tmp; tmpp2 = tmpp + 272; q11u8 = vld1q_u8(tmpp); tmpp += 16; for (i = 4; i > 0; i--) { q12u8 = vld1q_u8(tmpp); tmpp += 16; q13u8 = vld1q_u8(tmpp); tmpp += 16; q14u8 = vld1q_u8(tmpp); tmpp += 16; q15u8 = vld1q_u8(tmpp); tmpp += 16; q1u16 = vmull_u8(vget_low_u8(q11u8), d0u8); q2u16 = vmull_u8(vget_high_u8(q11u8), d0u8); q3u16 = vmull_u8(vget_low_u8(q12u8), d0u8); q4u16 = vmull_u8(vget_high_u8(q12u8), d0u8); q5u16 = vmull_u8(vget_low_u8(q13u8), d0u8); q6u16 = vmull_u8(vget_high_u8(q13u8), d0u8); q7u16 = vmull_u8(vget_low_u8(q14u8), d0u8); q8u16 = vmull_u8(vget_high_u8(q14u8), d0u8); q1u16 = vmlal_u8(q1u16, vget_low_u8(q12u8), d1u8); q2u16 = vmlal_u8(q2u16, vget_high_u8(q12u8), d1u8); q3u16 = vmlal_u8(q3u16, vget_low_u8(q13u8), d1u8); q4u16 = vmlal_u8(q4u16, vget_high_u8(q13u8), d1u8); q5u16 = vmlal_u8(q5u16, vget_low_u8(q14u8), d1u8); q6u16 = vmlal_u8(q6u16, vget_high_u8(q14u8), d1u8); q7u16 = vmlal_u8(q7u16, vget_low_u8(q15u8), d1u8); q8u16 = vmlal_u8(q8u16, vget_high_u8(q15u8), d1u8); d2u8 = vqrshrn_n_u16(q1u16, 7); d3u8 = vqrshrn_n_u16(q2u16, 7); d4u8 = vqrshrn_n_u16(q3u16, 7); d5u8 = vqrshrn_n_u16(q4u16, 7); d6u8 = vqrshrn_n_u16(q5u16, 7); d7u8 = vqrshrn_n_u16(q6u16, 7); d8u8 = vqrshrn_n_u16(q7u16, 7); d9u8 = vqrshrn_n_u16(q8u16, 7); q1u8 = vcombine_u8(d2u8, d3u8); q2u8 = vcombine_u8(d4u8, d5u8); q3u8 = vcombine_u8(d6u8, d7u8); q4u8 = vcombine_u8(d8u8, d9u8); q11u8 = q15u8; vst1q_u8((uint8_t *)tmpp2, q1u8); tmpp2 += 16; vst1q_u8((uint8_t *)tmpp2, q2u8); tmpp2 += 16; vst1q_u8((uint8_t *)tmpp2, q3u8); tmpp2 += 16; vst1q_u8((uint8_t *)tmpp2, q4u8); tmpp2 += 16; } } // sub_pixel_variance16x16_neon q8s32 = vdupq_n_s32(0); q9s32 = vdupq_n_s32(0); q10s32 = vdupq_n_s32(0); tmpp = tmp + 272; for (i = 0; i < 8; i++) { // sub_pixel_variance16x16_neon_loop q0u8 = vld1q_u8(tmpp); tmpp += 16; q1u8 = vld1q_u8(tmpp); tmpp += 16; q2u8 = vld1q_u8(dst_ptr); dst_ptr += dst_pixels_per_line; q3u8 = vld1q_u8(dst_ptr); dst_ptr += dst_pixels_per_line; d0u8 = vget_low_u8(q0u8); d1u8 = vget_high_u8(q0u8); d2u8 = vget_low_u8(q1u8); d3u8 = vget_high_u8(q1u8); q11u16 = vsubl_u8(d0u8, vget_low_u8(q2u8)); q12u16 = vsubl_u8(d1u8, vget_high_u8(q2u8)); q13u16 = vsubl_u8(d2u8, vget_low_u8(q3u8)); q14u16 = vsubl_u8(d3u8, vget_high_u8(q3u8)); d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16)); d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16)); q9s32 = vmlal_s16(q9s32, d22s16, d22s16); q10s32 = vmlal_s16(q10s32, d23s16, d23s16); d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16)); d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16)); q9s32 = vmlal_s16(q9s32, d24s16, d24s16); q10s32 = vmlal_s16(q10s32, d25s16, d25s16); d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16)); d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q13u16)); q9s32 = vmlal_s16(q9s32, d26s16, d26s16); q10s32 = vmlal_s16(q10s32, d27s16, d27s16); d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16)); d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q14u16)); q9s32 = vmlal_s16(q9s32, d28s16, d28s16); q10s32 = vmlal_s16(q10s32, d29s16, d29s16); } q10s32 = vaddq_s32(q10s32, q9s32); q0s64 = vpaddlq_s32(q8s32); q1s64 = vpaddlq_s32(q10s32); d0s64 = vget_low_s64(q0s64); d1s64 = vget_high_s64(q0s64); d2s64 = vget_low_s64(q1s64); d3s64 = vget_high_s64(q1s64); d0s64 = vadd_s64(d0s64, d1s64); d1s64 = vadd_s64(d2s64, d3s64); q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64), vreinterpret_s32_s64(d0s64)); vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0); d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8); d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32); return vget_lane_u32(d0u32, 0); } unsigned int vp8_variance_halfpixvar16x16_h_neon( const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int recon_stride, unsigned int *sse) { int i; uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8; int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16; int16x4_t d8s16, d9s16, d10s16, d11s16, d12s16, d13s16, d14s16, d15s16; uint32x2_t d0u32, d10u32; int64x1_t d0s64, d1s64, d2s64, d3s64; uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8; uint8x16_t q7u8, q11u8, q12u8, q13u8, q14u8; uint16x8_t q0u16, q1u16, q2u16, q3u16, q4u16, q5u16, q6u16, q7u16; int32x4_t q8s32, q9s32, q10s32; int64x2_t q0s64, q1s64, q5s64; q8s32 = vdupq_n_s32(0); q9s32 = vdupq_n_s32(0); q10s32 = vdupq_n_s32(0); for (i = 0; i < 4; i++) { // vp8_filt_fpo16x16s_4_0_loop_neon q0u8 = vld1q_u8(src_ptr); q1u8 = vld1q_u8(src_ptr + 16); src_ptr += source_stride; q2u8 = vld1q_u8(src_ptr); q3u8 = vld1q_u8(src_ptr + 16); src_ptr += source_stride; q4u8 = vld1q_u8(src_ptr); q5u8 = vld1q_u8(src_ptr + 16); src_ptr += source_stride; q6u8 = vld1q_u8(src_ptr); q7u8 = vld1q_u8(src_ptr + 16); src_ptr += source_stride; q11u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q12u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q13u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q14u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q1u8 = vextq_u8(q0u8, q1u8, 1); q3u8 = vextq_u8(q2u8, q3u8, 1); q5u8 = vextq_u8(q4u8, q5u8, 1); q7u8 = vextq_u8(q6u8, q7u8, 1); q0u8 = vrhaddq_u8(q0u8, q1u8); q1u8 = vrhaddq_u8(q2u8, q3u8); q2u8 = vrhaddq_u8(q4u8, q5u8); q3u8 = vrhaddq_u8(q6u8, q7u8); d0u8 = vget_low_u8(q0u8); d1u8 = vget_high_u8(q0u8); d2u8 = vget_low_u8(q1u8); d3u8 = vget_high_u8(q1u8); d4u8 = vget_low_u8(q2u8); d5u8 = vget_high_u8(q2u8); d6u8 = vget_low_u8(q3u8); d7u8 = vget_high_u8(q3u8); q4u16 = vsubl_u8(d0u8, vget_low_u8(q11u8)); q5u16 = vsubl_u8(d1u8, vget_high_u8(q11u8)); q6u16 = vsubl_u8(d2u8, vget_low_u8(q12u8)); q7u16 = vsubl_u8(d3u8, vget_high_u8(q12u8)); q0u16 = vsubl_u8(d4u8, vget_low_u8(q13u8)); q1u16 = vsubl_u8(d5u8, vget_high_u8(q13u8)); q2u16 = vsubl_u8(d6u8, vget_low_u8(q14u8)); q3u16 = vsubl_u8(d7u8, vget_high_u8(q14u8)); d8s16 = vreinterpret_s16_u16(vget_low_u16(q4u16)); d9s16 = vreinterpret_s16_u16(vget_high_u16(q4u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q4u16)); q9s32 = vmlal_s16(q9s32, d8s16, d8s16); q10s32 = vmlal_s16(q10s32, d9s16, d9s16); d10s16 = vreinterpret_s16_u16(vget_low_u16(q5u16)); d11s16 = vreinterpret_s16_u16(vget_high_u16(q5u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q5u16)); q9s32 = vmlal_s16(q9s32, d10s16, d10s16); q10s32 = vmlal_s16(q10s32, d11s16, d11s16); d12s16 = vreinterpret_s16_u16(vget_low_u16(q6u16)); d13s16 = vreinterpret_s16_u16(vget_high_u16(q6u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q6u16)); q9s32 = vmlal_s16(q9s32, d12s16, d12s16); q10s32 = vmlal_s16(q10s32, d13s16, d13s16); d14s16 = vreinterpret_s16_u16(vget_low_u16(q7u16)); d15s16 = vreinterpret_s16_u16(vget_high_u16(q7u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q7u16)); q9s32 = vmlal_s16(q9s32, d14s16, d14s16); q10s32 = vmlal_s16(q10s32, d15s16, d15s16); d0s16 = vreinterpret_s16_u16(vget_low_u16(q0u16)); d1s16 = vreinterpret_s16_u16(vget_high_u16(q0u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q0u16)); q9s32 = vmlal_s16(q9s32, d0s16, d0s16); q10s32 = vmlal_s16(q10s32, d1s16, d1s16); d2s16 = vreinterpret_s16_u16(vget_low_u16(q1u16)); d3s16 = vreinterpret_s16_u16(vget_high_u16(q1u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q1u16)); q9s32 = vmlal_s16(q9s32, d2s16, d2s16); q10s32 = vmlal_s16(q10s32, d3s16, d3s16); d4s16 = vreinterpret_s16_u16(vget_low_u16(q2u16)); d5s16 = vreinterpret_s16_u16(vget_high_u16(q2u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q2u16)); q9s32 = vmlal_s16(q9s32, d4s16, d4s16); q10s32 = vmlal_s16(q10s32, d5s16, d5s16); d6s16 = vreinterpret_s16_u16(vget_low_u16(q3u16)); d7s16 = vreinterpret_s16_u16(vget_high_u16(q3u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q3u16)); q9s32 = vmlal_s16(q9s32, d6s16, d6s16); q10s32 = vmlal_s16(q10s32, d7s16, d7s16); } q10s32 = vaddq_s32(q10s32, q9s32); q0s64 = vpaddlq_s32(q8s32); q1s64 = vpaddlq_s32(q10s32); d0s64 = vget_low_s64(q0s64); d1s64 = vget_high_s64(q0s64); d2s64 = vget_low_s64(q1s64); d3s64 = vget_high_s64(q1s64); d0s64 = vadd_s64(d0s64, d1s64); d1s64 = vadd_s64(d2s64, d3s64); q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64), vreinterpret_s32_s64(d0s64)); vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0); d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8); d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32); return vget_lane_u32(d0u32, 0); } unsigned int vp8_variance_halfpixvar16x16_v_neon( const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int recon_stride, unsigned int *sse) { int i; uint8x8_t d0u8, d1u8, d4u8, d5u8, d8u8, d9u8, d12u8, d13u8; int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16; int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16; uint32x2_t d0u32, d10u32; int64x1_t d0s64, d1s64, d2s64, d3s64; uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8, q7u8, q15u8; uint16x8_t q0u16, q1u16, q2u16, q3u16, q11u16, q12u16, q13u16, q14u16; int32x4_t q8s32, q9s32, q10s32; int64x2_t q0s64, q1s64, q5s64; q8s32 = vdupq_n_s32(0); q9s32 = vdupq_n_s32(0); q10s32 = vdupq_n_s32(0); q0u8 = vld1q_u8(src_ptr); src_ptr += source_stride; for (i = 0; i < 4; i++) { // vp8_filt_fpo16x16s_4_0_loop_neon q2u8 = vld1q_u8(src_ptr); src_ptr += source_stride; q4u8 = vld1q_u8(src_ptr); src_ptr += source_stride; q6u8 = vld1q_u8(src_ptr); src_ptr += source_stride; q15u8 = vld1q_u8(src_ptr); src_ptr += source_stride; q1u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q3u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q5u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q7u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q0u8 = vrhaddq_u8(q0u8, q2u8); q2u8 = vrhaddq_u8(q2u8, q4u8); q4u8 = vrhaddq_u8(q4u8, q6u8); q6u8 = vrhaddq_u8(q6u8, q15u8); d0u8 = vget_low_u8(q0u8); d1u8 = vget_high_u8(q0u8); d4u8 = vget_low_u8(q2u8); d5u8 = vget_high_u8(q2u8); d8u8 = vget_low_u8(q4u8); d9u8 = vget_high_u8(q4u8); d12u8 = vget_low_u8(q6u8); d13u8 = vget_high_u8(q6u8); q11u16 = vsubl_u8(d0u8, vget_low_u8(q1u8)); q12u16 = vsubl_u8(d1u8, vget_high_u8(q1u8)); q13u16 = vsubl_u8(d4u8, vget_low_u8(q3u8)); q14u16 = vsubl_u8(d5u8, vget_high_u8(q3u8)); q0u16 = vsubl_u8(d8u8, vget_low_u8(q5u8)); q1u16 = vsubl_u8(d9u8, vget_high_u8(q5u8)); q2u16 = vsubl_u8(d12u8, vget_low_u8(q7u8)); q3u16 = vsubl_u8(d13u8, vget_high_u8(q7u8)); d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16)); d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16)); q9s32 = vmlal_s16(q9s32, d22s16, d22s16); q10s32 = vmlal_s16(q10s32, d23s16, d23s16); d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16)); d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16)); q9s32 = vmlal_s16(q9s32, d24s16, d24s16); q10s32 = vmlal_s16(q10s32, d25s16, d25s16); d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16)); d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q13u16)); q9s32 = vmlal_s16(q9s32, d26s16, d26s16); q10s32 = vmlal_s16(q10s32, d27s16, d27s16); d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16)); d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q14u16)); q9s32 = vmlal_s16(q9s32, d28s16, d28s16); q10s32 = vmlal_s16(q10s32, d29s16, d29s16); d0s16 = vreinterpret_s16_u16(vget_low_u16(q0u16)); d1s16 = vreinterpret_s16_u16(vget_high_u16(q0u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q0u16)); q9s32 = vmlal_s16(q9s32, d0s16, d0s16); q10s32 = vmlal_s16(q10s32, d1s16, d1s16); d2s16 = vreinterpret_s16_u16(vget_low_u16(q1u16)); d3s16 = vreinterpret_s16_u16(vget_high_u16(q1u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q1u16)); q9s32 = vmlal_s16(q9s32, d2s16, d2s16); q10s32 = vmlal_s16(q10s32, d3s16, d3s16); d4s16 = vreinterpret_s16_u16(vget_low_u16(q2u16)); d5s16 = vreinterpret_s16_u16(vget_high_u16(q2u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q2u16)); q9s32 = vmlal_s16(q9s32, d4s16, d4s16); q10s32 = vmlal_s16(q10s32, d5s16, d5s16); d6s16 = vreinterpret_s16_u16(vget_low_u16(q3u16)); d7s16 = vreinterpret_s16_u16(vget_high_u16(q3u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q3u16)); q9s32 = vmlal_s16(q9s32, d6s16, d6s16); q10s32 = vmlal_s16(q10s32, d7s16, d7s16); q0u8 = q15u8; } q10s32 = vaddq_s32(q10s32, q9s32); q0s64 = vpaddlq_s32(q8s32); q1s64 = vpaddlq_s32(q10s32); d0s64 = vget_low_s64(q0s64); d1s64 = vget_high_s64(q0s64); d2s64 = vget_low_s64(q1s64); d3s64 = vget_high_s64(q1s64); d0s64 = vadd_s64(d0s64, d1s64); d1s64 = vadd_s64(d2s64, d3s64); q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64), vreinterpret_s32_s64(d0s64)); vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0); d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8); d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32); return vget_lane_u32(d0u32, 0); } unsigned int vp8_variance_halfpixvar16x16_hv_neon( const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int recon_stride, unsigned int *sse) { int i; uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8; int16x4_t d0s16, d1s16, d2s16, d3s16, d10s16, d11s16, d12s16, d13s16; int16x4_t d18s16, d19s16, d20s16, d21s16, d22s16, d23s16, d24s16, d25s16; uint32x2_t d0u32, d10u32; int64x1_t d0s64, d1s64, d2s64, d3s64; uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8, q7u8, q8u8, q9u8; uint16x8_t q0u16, q1u16, q5u16, q6u16, q9u16, q10u16, q11u16, q12u16; int32x4_t q13s32, q14s32, q15s32; int64x2_t q0s64, q1s64, q5s64; q13s32 = vdupq_n_s32(0); q14s32 = vdupq_n_s32(0); q15s32 = vdupq_n_s32(0); q0u8 = vld1q_u8(src_ptr); q1u8 = vld1q_u8(src_ptr + 16); src_ptr += source_stride; q1u8 = vextq_u8(q0u8, q1u8, 1); q0u8 = vrhaddq_u8(q0u8, q1u8); for (i = 0; i < 4; i++) { // vp8_filt_fpo16x16s_4_0_loop_neon q2u8 = vld1q_u8(src_ptr); q3u8 = vld1q_u8(src_ptr + 16); src_ptr += source_stride; q4u8 = vld1q_u8(src_ptr); q5u8 = vld1q_u8(src_ptr + 16); src_ptr += source_stride; q6u8 = vld1q_u8(src_ptr); q7u8 = vld1q_u8(src_ptr + 16); src_ptr += source_stride; q8u8 = vld1q_u8(src_ptr); q9u8 = vld1q_u8(src_ptr + 16); src_ptr += source_stride; q3u8 = vextq_u8(q2u8, q3u8, 1); q5u8 = vextq_u8(q4u8, q5u8, 1); q7u8 = vextq_u8(q6u8, q7u8, 1); q9u8 = vextq_u8(q8u8, q9u8, 1); q1u8 = vrhaddq_u8(q2u8, q3u8); q2u8 = vrhaddq_u8(q4u8, q5u8); q3u8 = vrhaddq_u8(q6u8, q7u8); q4u8 = vrhaddq_u8(q8u8, q9u8); q0u8 = vrhaddq_u8(q0u8, q1u8); q1u8 = vrhaddq_u8(q1u8, q2u8); q2u8 = vrhaddq_u8(q2u8, q3u8); q3u8 = vrhaddq_u8(q3u8, q4u8); q5u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q6u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q7u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q8u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; d0u8 = vget_low_u8(q0u8); d1u8 = vget_high_u8(q0u8); d2u8 = vget_low_u8(q1u8); d3u8 = vget_high_u8(q1u8); d4u8 = vget_low_u8(q2u8); d5u8 = vget_high_u8(q2u8); d6u8 = vget_low_u8(q3u8); d7u8 = vget_high_u8(q3u8); q9u16 = vsubl_u8(d0u8, vget_low_u8(q5u8)); q10u16 = vsubl_u8(d1u8, vget_high_u8(q5u8)); q11u16 = vsubl_u8(d2u8, vget_low_u8(q6u8)); q12u16 = vsubl_u8(d3u8, vget_high_u8(q6u8)); q0u16 = vsubl_u8(d4u8, vget_low_u8(q7u8)); q1u16 = vsubl_u8(d5u8, vget_high_u8(q7u8)); q5u16 = vsubl_u8(d6u8, vget_low_u8(q8u8)); q6u16 = vsubl_u8(d7u8, vget_high_u8(q8u8)); d18s16 = vreinterpret_s16_u16(vget_low_u16(q9u16)); d19s16 = vreinterpret_s16_u16(vget_high_u16(q9u16)); q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q9u16)); q14s32 = vmlal_s16(q14s32, d18s16, d18s16); q15s32 = vmlal_s16(q15s32, d19s16, d19s16); d20s16 = vreinterpret_s16_u16(vget_low_u16(q10u16)); d21s16 = vreinterpret_s16_u16(vget_high_u16(q10u16)); q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q10u16)); q14s32 = vmlal_s16(q14s32, d20s16, d20s16); q15s32 = vmlal_s16(q15s32, d21s16, d21s16); d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16)); d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16)); q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q11u16)); q14s32 = vmlal_s16(q14s32, d22s16, d22s16); q15s32 = vmlal_s16(q15s32, d23s16, d23s16); d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16)); d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16)); q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q12u16)); q14s32 = vmlal_s16(q14s32, d24s16, d24s16); q15s32 = vmlal_s16(q15s32, d25s16, d25s16); d0s16 = vreinterpret_s16_u16(vget_low_u16(q0u16)); d1s16 = vreinterpret_s16_u16(vget_high_u16(q0u16)); q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q0u16)); q14s32 = vmlal_s16(q14s32, d0s16, d0s16); q15s32 = vmlal_s16(q15s32, d1s16, d1s16); d2s16 = vreinterpret_s16_u16(vget_low_u16(q1u16)); d3s16 = vreinterpret_s16_u16(vget_high_u16(q1u16)); q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q1u16)); q14s32 = vmlal_s16(q14s32, d2s16, d2s16); q15s32 = vmlal_s16(q15s32, d3s16, d3s16); d10s16 = vreinterpret_s16_u16(vget_low_u16(q5u16)); d11s16 = vreinterpret_s16_u16(vget_high_u16(q5u16)); q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q5u16)); q14s32 = vmlal_s16(q14s32, d10s16, d10s16); q15s32 = vmlal_s16(q15s32, d11s16, d11s16); d12s16 = vreinterpret_s16_u16(vget_low_u16(q6u16)); d13s16 = vreinterpret_s16_u16(vget_high_u16(q6u16)); q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q6u16)); q14s32 = vmlal_s16(q14s32, d12s16, d12s16); q15s32 = vmlal_s16(q15s32, d13s16, d13s16); q0u8 = q4u8; } q15s32 = vaddq_s32(q14s32, q15s32); q0s64 = vpaddlq_s32(q13s32); q1s64 = vpaddlq_s32(q15s32); d0s64 = vget_low_s64(q0s64); d1s64 = vget_high_s64(q0s64); d2s64 = vget_low_s64(q1s64); d3s64 = vget_high_s64(q1s64); d0s64 = vadd_s64(d0s64, d1s64); d1s64 = vadd_s64(d2s64, d3s64); q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64), vreinterpret_s32_s64(d0s64)); vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0); d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8); d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32); return vget_lane_u32(d0u32, 0); } enum { kWidth8 = 8 }; enum { kHeight8 = 8 }; enum { kHeight8PlusOne = 9 }; enum { kPixelStepOne = 1 }; enum { kAlign16 = 16 }; #define FILTER_BITS 7 static INLINE int horizontal_add_s16x8(const int16x8_t v_16x8) { const int32x4_t a = vpaddlq_s16(v_16x8); const int64x2_t b = vpaddlq_s32(a); const int32x2_t c = vadd_s32(vreinterpret_s32_s64(vget_low_s64(b)), vreinterpret_s32_s64(vget_high_s64(b))); return vget_lane_s32(c, 0); } static INLINE int horizontal_add_s32x4(const int32x4_t v_32x4) { const int64x2_t b = vpaddlq_s32(v_32x4); const int32x2_t c = vadd_s32(vreinterpret_s32_s64(vget_low_s64(b)), vreinterpret_s32_s64(vget_high_s64(b))); return vget_lane_s32(c, 0); } static void variance_neon_w8(const uint8_t *a, int a_stride, const uint8_t *b, int b_stride, int w, int h, unsigned int *sse, int *sum) { int i, j; int16x8_t v_sum = vdupq_n_s16(0); int32x4_t v_sse_lo = vdupq_n_s32(0); int32x4_t v_sse_hi = vdupq_n_s32(0); for (i = 0; i < h; ++i) { for (j = 0; j < w; j += 8) { const uint8x8_t v_a = vld1_u8(&a[j]); const uint8x8_t v_b = vld1_u8(&b[j]); const uint16x8_t v_diff = vsubl_u8(v_a, v_b); const int16x8_t sv_diff = vreinterpretq_s16_u16(v_diff); v_sum = vaddq_s16(v_sum, sv_diff); v_sse_lo = vmlal_s16(v_sse_lo, vget_low_s16(sv_diff), vget_low_s16(sv_diff)); v_sse_hi = vmlal_s16(v_sse_hi, vget_high_s16(sv_diff), vget_high_s16(sv_diff)); } a += a_stride; b += b_stride; } *sum = horizontal_add_s16x8(v_sum); *sse = (unsigned int)horizontal_add_s32x4(vaddq_s32(v_sse_lo, v_sse_hi)); } static unsigned int variance8x8_neon(const uint8_t *a, int a_stride, const uint8_t *b, int b_stride, unsigned int *sse) { int sum; variance_neon_w8(a, a_stride, b, b_stride, kWidth8, kHeight8, sse, &sum); return *sse - (((int64_t)sum * sum) / (kWidth8 * kHeight8)); } static void var_filter_block2d_bil_w8(const uint8_t *src_ptr, uint8_t *output_ptr, unsigned int src_pixels_per_line, int pixel_step, unsigned int output_height, unsigned int output_width, const uint16_t *vpx_filter) { const uint8x8_t f0 = vmov_n_u8((uint8_t)vpx_filter[0]); const uint8x8_t f1 = vmov_n_u8((uint8_t)vpx_filter[1]); unsigned int i; for (i = 0; i < output_height; ++i) { const uint8x8_t src_0 = vld1_u8(&src_ptr[0]); const uint8x8_t src_1 = vld1_u8(&src_ptr[pixel_step]); const uint16x8_t a = vmull_u8(src_0, f0); const uint16x8_t b = vmlal_u8(a, src_1, f1); const uint8x8_t out = vrshrn_n_u16(b, FILTER_BITS); vst1_u8(&output_ptr[0], out); // Next row... src_ptr += src_pixels_per_line; output_ptr += output_width; } } unsigned int vp8_sub_pixel_variance8x8_neon( const unsigned char *src, int src_stride, int xoffset, int yoffset, const unsigned char *dst, int dst_stride, unsigned int *sse) { DECLARE_ALIGNED_ARRAY(kAlign16, uint8_t, temp2, kHeight8 * kWidth8); DECLARE_ALIGNED_ARRAY(kAlign16, uint8_t, fdata3, kHeight8PlusOne * kWidth8); if (xoffset == 0) { var_filter_block2d_bil_w8(src, temp2, src_stride, kWidth8, kHeight8, kWidth8, bilinear_taps_coeff[yoffset]); } else if (yoffset == 0) { var_filter_block2d_bil_w8(src, temp2, src_stride, kPixelStepOne, kHeight8PlusOne, kWidth8, bilinear_taps_coeff[xoffset]); } else { var_filter_block2d_bil_w8(src, fdata3, src_stride, kPixelStepOne, kHeight8PlusOne, kWidth8, bilinear_taps_coeff[xoffset]); var_filter_block2d_bil_w8(fdata3, temp2, kWidth8, kWidth8, kHeight8, kWidth8, bilinear_taps_coeff[yoffset]); } return variance8x8_neon(temp2, kWidth8, dst, dst_stride, sse); }