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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /media/libvpx/libvpx/vpx_dsp/arm/vpx_convolve8_neon.c | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'media/libvpx/libvpx/vpx_dsp/arm/vpx_convolve8_neon.c')
-rw-r--r-- | media/libvpx/libvpx/vpx_dsp/arm/vpx_convolve8_neon.c | 2110 |
1 files changed, 2110 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/arm/vpx_convolve8_neon.c b/media/libvpx/libvpx/vpx_dsp/arm/vpx_convolve8_neon.c new file mode 100644 index 0000000000..b312cc747c --- /dev/null +++ b/media/libvpx/libvpx/vpx_dsp/arm/vpx_convolve8_neon.c @@ -0,0 +1,2110 @@ +/* + * 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 <assert.h> + +#include "./vpx_config.h" +#include "./vpx_dsp_rtcd.h" +#include "vpx/vpx_integer.h" +#include "vpx_dsp/arm/mem_neon.h" +#include "vpx_dsp/arm/transpose_neon.h" +#include "vpx_dsp/arm/vpx_convolve8_neon.h" +#include "vpx_ports/mem.h" + +// Note: +// 1. src is not always 32-bit aligned, so don't call vld1_lane_u32(src). +// 2. After refactoring the shared code in kernel loops with inline functions, +// the decoder speed dropped a lot when using gcc compiler. Therefore there is +// no refactoring for those parts by now. +// 3. For horizontal convolve, there is an alternative optimization that +// convolves a single row in each loop. For each row, 8 sample banks with 4 or 8 +// samples in each are read from memory: src, (src+1), (src+2), (src+3), +// (src+4), (src+5), (src+6), (src+7), or prepared by vector extract +// instructions. This optimization is much faster in speed unit test, but slowed +// down the whole decoder by 5%. + +#if VPX_ARCH_AARCH64 && \ + (defined(__ARM_FEATURE_DOTPROD) || defined(__ARM_FEATURE_MATMUL_INT8)) + +DECLARE_ALIGNED(16, static const uint8_t, dot_prod_permute_tbl[48]) = { + 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6, + 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10, + 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 +}; + +DECLARE_ALIGNED(16, static const uint8_t, dot_prod_tran_concat_tbl[32]) = { + 0, 8, 16, 24, 1, 9, 17, 25, 2, 10, 18, 26, 3, 11, 19, 27, + 4, 12, 20, 28, 5, 13, 21, 29, 6, 14, 22, 30, 7, 15, 23, 31 +}; + +DECLARE_ALIGNED(16, static const uint8_t, dot_prod_merge_block_tbl[48]) = { + /* Shift left and insert new last column in transposed 4x4 block. */ + 1, 2, 3, 16, 5, 6, 7, 20, 9, 10, 11, 24, 13, 14, 15, 28, + /* Shift left and insert two new columns in transposed 4x4 block. */ + 2, 3, 16, 17, 6, 7, 20, 21, 10, 11, 24, 25, 14, 15, 28, 29, + /* Shift left and insert three new columns in transposed 4x4 block. */ + 3, 16, 17, 18, 7, 20, 21, 22, 11, 24, 25, 26, 15, 28, 29, 30 +}; + +#if defined(__ARM_FEATURE_MATMUL_INT8) + +void vpx_convolve8_horiz_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, int w, + int h) { + const int8x8_t filters = vmovn_s16(vld1q_s16(filter[x0_q4])); + uint8x16_t s0, s1, s2, s3; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(x_step_q4 == 16); + + (void)x_step_q4; + (void)y0_q4; + (void)y_step_q4; + + src -= 3; + + if (w == 4) { + const uint8x16x2_t permute_tbl = vld1q_u8_x2(dot_prod_permute_tbl); + do { + int32x4_t t0, t1, t2, t3; + int16x8_t t01, t23; + uint8x8_t d01, d23; + + load_u8_16x4(src, src_stride, &s0, &s1, &s2, &s3); + + t0 = convolve8_4_usdot(s0, filters, permute_tbl); + t1 = convolve8_4_usdot(s1, filters, permute_tbl); + t2 = convolve8_4_usdot(s2, filters, permute_tbl); + t3 = convolve8_4_usdot(s3, filters, permute_tbl); + t01 = vcombine_s16(vqmovn_s32(t0), vqmovn_s32(t1)); + t23 = vcombine_s16(vqmovn_s32(t2), vqmovn_s32(t3)); + d01 = vqrshrun_n_s16(t01, 7); + d23 = vqrshrun_n_s16(t23, 7); + + store_u8(dst + 0 * dst_stride, dst_stride, d01); + store_u8(dst + 2 * dst_stride, dst_stride, d23); + + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } else { + const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); + const uint8_t *s; + uint8_t *d; + int width; + uint8x8_t d0, d1, d2, d3; + + do { + width = w; + s = src; + d = dst; + do { + load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); + + d0 = convolve8_8_usdot(s0, filters, permute_tbl); + d1 = convolve8_8_usdot(s1, filters, permute_tbl); + d2 = convolve8_8_usdot(s2, filters, permute_tbl); + d3 = convolve8_8_usdot(s3, filters, permute_tbl); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + s += 8; + d += 8; + width -= 8; + } while (width > 0); + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } +} + +void vpx_convolve8_avg_horiz_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, + int w, int h) { + const int8x8_t filters = vmovn_s16(vld1q_s16(filter[x0_q4])); + uint8x16_t s0, s1, s2, s3; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(x_step_q4 == 16); + + (void)x_step_q4; + (void)y0_q4; + (void)y_step_q4; + + src -= 3; + + if (w == 4) { + const uint8x16x2_t permute_tbl = vld1q_u8_x2(dot_prod_permute_tbl); + do { + int32x4_t t0, t1, t2, t3; + int16x8_t t01, t23; + uint8x8_t d01, d23, dd01, dd23; + dd01 = vdup_n_u8(0); + dd23 = vdup_n_u8(0); + + load_u8_16x4(src, src_stride, &s0, &s1, &s2, &s3); + + t0 = convolve8_4_usdot(s0, filters, permute_tbl); + t1 = convolve8_4_usdot(s1, filters, permute_tbl); + t2 = convolve8_4_usdot(s2, filters, permute_tbl); + t3 = convolve8_4_usdot(s3, filters, permute_tbl); + t01 = vcombine_s16(vqmovn_s32(t0), vqmovn_s32(t1)); + t23 = vcombine_s16(vqmovn_s32(t2), vqmovn_s32(t3)); + d01 = vqrshrun_n_s16(t01, 7); + d23 = vqrshrun_n_s16(t23, 7); + + dd01 = load_u8(dst + 0 * dst_stride, dst_stride); + dd23 = load_u8(dst + 2 * dst_stride, dst_stride); + + d01 = vrhadd_u8(d01, dd01); + d23 = vrhadd_u8(d23, dd23); + + store_u8(dst + 0 * dst_stride, dst_stride, d01); + store_u8(dst + 2 * dst_stride, dst_stride, d23); + + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } else { + const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); + const uint8_t *s; + uint8_t *d; + int width; + uint8x8_t d0, d1, d2, d3, dd0, dd1, dd2, dd3; + + do { + width = w; + s = src; + d = dst; + do { + load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); + + d0 = convolve8_8_usdot(s0, filters, permute_tbl); + d1 = convolve8_8_usdot(s1, filters, permute_tbl); + d2 = convolve8_8_usdot(s2, filters, permute_tbl); + d3 = convolve8_8_usdot(s3, filters, permute_tbl); + + load_u8_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3); + + d0 = vrhadd_u8(d0, dd0); + d1 = vrhadd_u8(d1, dd1); + d2 = vrhadd_u8(d2, dd2); + d3 = vrhadd_u8(d3, dd3); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + s += 8; + d += 8; + width -= 8; + } while (width > 0); + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } +} + +static INLINE void transpose_concat_4x4(uint8x8_t a0, uint8x8_t a1, + uint8x8_t a2, uint8x8_t a3, + uint8x16_t *b, + const uint8x16_t permute_tbl) { + /* Transpose 8-bit elements and concatenate result rows as follows: + * a0: 00, 01, 02, 03, XX, XX, XX, XX + * a1: 10, 11, 12, 13, XX, XX, XX, XX + * a2: 20, 21, 22, 23, XX, XX, XX, XX + * a3: 30, 31, 32, 33, XX, XX, XX, XX + * + * b: 00, 10, 20, 30, 01, 11, 21, 31, 02, 12, 22, 32, 03, 13, 23, 33 + * + * The 'permute_tbl' is always 'dot_prod_tran_concat_tbl' above. Passing it + * as an argument is preferable to loading it directly from memory as this + * inline helper is called many times from the same parent function. + */ + + uint8x16x2_t samples = { { vcombine_u8(a0, a1), vcombine_u8(a2, a3) } }; + *b = vqtbl2q_u8(samples, permute_tbl); +} + +static INLINE void transpose_concat_8x4(uint8x8_t a0, uint8x8_t a1, + uint8x8_t a2, uint8x8_t a3, + uint8x16_t *b0, uint8x16_t *b1, + const uint8x16x2_t permute_tbl) { + /* Transpose 8-bit elements and concatenate result rows as follows: + * a0: 00, 01, 02, 03, 04, 05, 06, 07 + * a1: 10, 11, 12, 13, 14, 15, 16, 17 + * a2: 20, 21, 22, 23, 24, 25, 26, 27 + * a3: 30, 31, 32, 33, 34, 35, 36, 37 + * + * b0: 00, 10, 20, 30, 01, 11, 21, 31, 02, 12, 22, 32, 03, 13, 23, 33 + * b1: 04, 14, 24, 34, 05, 15, 25, 35, 06, 16, 26, 36, 07, 17, 27, 37 + * + * The 'permute_tbl' is always 'dot_prod_tran_concat_tbl' above. Passing it + * as an argument is preferable to loading it directly from memory as this + * inline helper is called many times from the same parent function. + */ + + uint8x16x2_t samples = { { vcombine_u8(a0, a1), vcombine_u8(a2, a3) } }; + *b0 = vqtbl2q_u8(samples, permute_tbl.val[0]); + *b1 = vqtbl2q_u8(samples, permute_tbl.val[1]); +} + +void vpx_convolve8_vert_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, int w, + int h) { + const int8x8_t filters = vmovn_s16(vld1q_s16(filter[y0_q4])); + const uint8x16x3_t merge_block_tbl = vld1q_u8_x3(dot_prod_merge_block_tbl); + uint8x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + uint8x16x2_t samples_LUT; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(y_step_q4 == 16); + + (void)x0_q4; + (void)x_step_q4; + (void)y_step_q4; + + src -= 3 * src_stride; + + if (w == 4) { + const uint8x16_t tran_concat_tbl = vld1q_u8(dot_prod_tran_concat_tbl); + uint8x16_t s0123, s1234, s2345, s3456, s4567, s5678, s6789, s78910; + int32x4_t d0, d1, d2, d3; + uint8x8_t d01, d23; + + load_u8_8x7(src, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); + src += 7 * src_stride; + + s7 = vdup_n_u8(0); + s8 = vdup_n_u8(0); + s9 = vdup_n_u8(0); + + /* This operation combines a conventional transpose and the sample permute + * (see horizontal case) required before computing the dot product. + */ + transpose_concat_4x4(s0, s1, s2, s3, &s0123, tran_concat_tbl); + transpose_concat_4x4(s1, s2, s3, s4, &s1234, tran_concat_tbl); + transpose_concat_4x4(s2, s3, s4, s5, &s2345, tran_concat_tbl); + transpose_concat_4x4(s3, s4, s5, s6, &s3456, tran_concat_tbl); + transpose_concat_4x4(s4, s5, s6, s7, &s4567, tran_concat_tbl); + transpose_concat_4x4(s5, s6, s7, s8, &s5678, tran_concat_tbl); + transpose_concat_4x4(s6, s7, s8, s9, &s6789, tran_concat_tbl); + + do { + load_u8_8x4(src, src_stride, &s7, &s8, &s9, &s10); + + transpose_concat_4x4(s7, s8, s9, s10, &s78910, tran_concat_tbl); + + /* Merge new data into block from previous iteration. */ + samples_LUT.val[0] = s3456; + samples_LUT.val[1] = s78910; + s4567 = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[0]); + s5678 = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[1]); + s6789 = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[2]); + + d0 = convolve8_4_usdot_partial(s0123, s4567, filters); + d1 = convolve8_4_usdot_partial(s1234, s5678, filters); + d2 = convolve8_4_usdot_partial(s2345, s6789, filters); + d3 = convolve8_4_usdot_partial(s3456, s78910, filters); + d01 = vqrshrun_n_s16(vcombine_s16(vqmovn_s32(d0), vqmovn_s32(d1)), 7); + d23 = vqrshrun_n_s16(vcombine_s16(vqmovn_s32(d2), vqmovn_s32(d3)), 7); + + store_u8(dst + 0 * dst_stride, dst_stride, d01); + store_u8(dst + 2 * dst_stride, dst_stride, d23); + + /* Prepare block for next iteration - re-using as much as possible. */ + /* Shuffle everything up four rows. */ + s0123 = s4567; + s1234 = s5678; + s2345 = s6789; + s3456 = s78910; + + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } else { + const uint8x16x2_t tran_concat_tbl = vld1q_u8_x2(dot_prod_tran_concat_tbl); + uint8x16_t s0123_lo, s0123_hi, s1234_lo, s1234_hi, s2345_lo, s2345_hi, + s3456_lo, s3456_hi, s4567_lo, s4567_hi, s5678_lo, s5678_hi, s6789_lo, + s6789_hi, s78910_lo, s78910_hi; + uint8x8_t d0, d1, d2, d3; + const uint8_t *s; + uint8_t *d; + int height; + + do { + height = h; + s = src; + d = dst; + + load_u8_8x7(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); + s += 7 * src_stride; + + s7 = vdup_n_u8(0); + s8 = vdup_n_u8(0); + s9 = vdup_n_u8(0); + + /* This operation combines a conventional transpose and the sample permute + * (see horizontal case) required before computing the dot product. + */ + transpose_concat_8x4(s0, s1, s2, s3, &s0123_lo, &s0123_hi, + tran_concat_tbl); + transpose_concat_8x4(s1, s2, s3, s4, &s1234_lo, &s1234_hi, + tran_concat_tbl); + transpose_concat_8x4(s2, s3, s4, s5, &s2345_lo, &s2345_hi, + tran_concat_tbl); + transpose_concat_8x4(s3, s4, s5, s6, &s3456_lo, &s3456_hi, + tran_concat_tbl); + transpose_concat_8x4(s4, s5, s6, s7, &s4567_lo, &s4567_hi, + tran_concat_tbl); + transpose_concat_8x4(s5, s6, s7, s8, &s5678_lo, &s5678_hi, + tran_concat_tbl); + transpose_concat_8x4(s6, s7, s8, s9, &s6789_lo, &s6789_hi, + tran_concat_tbl); + + do { + load_u8_8x4(s, src_stride, &s7, &s8, &s9, &s10); + + transpose_concat_8x4(s7, s8, s9, s10, &s78910_lo, &s78910_hi, + tran_concat_tbl); + + /* Merge new data into block from previous iteration. */ + samples_LUT.val[0] = s3456_lo; + samples_LUT.val[1] = s78910_lo; + s4567_lo = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[0]); + s5678_lo = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[1]); + s6789_lo = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[2]); + + samples_LUT.val[0] = s3456_hi; + samples_LUT.val[1] = s78910_hi; + s4567_hi = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[0]); + s5678_hi = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[1]); + s6789_hi = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[2]); + + d0 = convolve8_8_usdot_partial(s0123_lo, s4567_lo, s0123_hi, s4567_hi, + filters); + d1 = convolve8_8_usdot_partial(s1234_lo, s5678_lo, s1234_hi, s5678_hi, + filters); + d2 = convolve8_8_usdot_partial(s2345_lo, s6789_lo, s2345_hi, s6789_hi, + filters); + d3 = convolve8_8_usdot_partial(s3456_lo, s78910_lo, s3456_hi, s78910_hi, + filters); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + /* Prepare block for next iteration - re-using as much as possible. */ + /* Shuffle everything up four rows. */ + s0123_lo = s4567_lo; + s0123_hi = s4567_hi; + s1234_lo = s5678_lo; + s1234_hi = s5678_hi; + s2345_lo = s6789_lo; + s2345_hi = s6789_hi; + s3456_lo = s78910_lo; + s3456_hi = s78910_hi; + + s += 4 * src_stride; + d += 4 * dst_stride; + height -= 4; + } while (height > 0); + src += 8; + dst += 8; + w -= 8; + } while (w > 0); + } +} + +void vpx_convolve8_avg_vert_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, int w, + int h) { + const int8x8_t filters = vmovn_s16(vld1q_s16(filter[y0_q4])); + const uint8x16x3_t merge_block_tbl = vld1q_u8_x3(dot_prod_merge_block_tbl); + uint8x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + uint8x16x2_t samples_LUT; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(y_step_q4 == 16); + + (void)x0_q4; + (void)x_step_q4; + (void)y_step_q4; + + src -= 3 * src_stride; + + if (w == 4) { + const uint8x16_t tran_concat_tbl = vld1q_u8(dot_prod_tran_concat_tbl); + uint8x16_t s0123, s1234, s2345, s3456, s4567, s5678, s6789, s78910; + int32x4_t d0, d1, d2, d3; + uint8x8_t d01, d23, dd01, dd23; + + load_u8_8x7(src, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); + src += 7 * src_stride; + + s7 = vdup_n_u8(0); + s8 = vdup_n_u8(0); + s9 = vdup_n_u8(0); + + /* This operation combines a conventional transpose and the sample permute + * (see horizontal case) required before computing the dot product. + */ + transpose_concat_4x4(s0, s1, s2, s3, &s0123, tran_concat_tbl); + transpose_concat_4x4(s1, s2, s3, s4, &s1234, tran_concat_tbl); + transpose_concat_4x4(s2, s3, s4, s5, &s2345, tran_concat_tbl); + transpose_concat_4x4(s3, s4, s5, s6, &s3456, tran_concat_tbl); + transpose_concat_4x4(s4, s5, s6, s7, &s4567, tran_concat_tbl); + transpose_concat_4x4(s5, s6, s7, s8, &s5678, tran_concat_tbl); + transpose_concat_4x4(s6, s7, s8, s9, &s6789, tran_concat_tbl); + + do { + load_u8_8x4(src, src_stride, &s7, &s8, &s9, &s10); + + transpose_concat_4x4(s7, s8, s9, s10, &s78910, tran_concat_tbl); + + /* Merge new data into block from previous iteration. */ + samples_LUT.val[0] = s3456; + samples_LUT.val[1] = s78910; + s4567 = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[0]); + s5678 = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[1]); + s6789 = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[2]); + + d0 = convolve8_4_usdot_partial(s0123, s4567, filters); + d1 = convolve8_4_usdot_partial(s1234, s5678, filters); + d2 = convolve8_4_usdot_partial(s2345, s6789, filters); + d3 = convolve8_4_usdot_partial(s3456, s78910, filters); + d01 = vqrshrun_n_s16(vcombine_s16(vqmovn_s32(d0), vqmovn_s32(d1)), 7); + d23 = vqrshrun_n_s16(vcombine_s16(vqmovn_s32(d2), vqmovn_s32(d3)), 7); + + dd01 = load_u8(dst + 0 * dst_stride, dst_stride); + dd23 = load_u8(dst + 2 * dst_stride, dst_stride); + + d01 = vrhadd_u8(d01, dd01); + d23 = vrhadd_u8(d23, dd23); + + store_u8(dst + 0 * dst_stride, dst_stride, d01); + store_u8(dst + 2 * dst_stride, dst_stride, d23); + + /* Prepare block for next iteration - re-using as much as possible. */ + /* Shuffle everything up four rows. */ + s0123 = s4567; + s1234 = s5678; + s2345 = s6789; + s3456 = s78910; + + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } else { + const uint8x16x2_t tran_concat_tbl = vld1q_u8_x2(dot_prod_tran_concat_tbl); + uint8x16_t s0123_lo, s0123_hi, s1234_lo, s1234_hi, s2345_lo, s2345_hi, + s3456_lo, s3456_hi, s4567_lo, s4567_hi, s5678_lo, s5678_hi, s6789_lo, + s6789_hi, s78910_lo, s78910_hi; + uint8x8_t d0, d1, d2, d3, dd0, dd1, dd2, dd3; + const uint8_t *s; + uint8_t *d; + int height; + + do { + height = h; + s = src; + d = dst; + + load_u8_8x7(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); + s += 7 * src_stride; + + s7 = vdup_n_u8(0); + s8 = vdup_n_u8(0); + s9 = vdup_n_u8(0); + + /* This operation combines a conventional transpose and the sample permute + * (see horizontal case) required before computing the dot product. + */ + transpose_concat_8x4(s0, s1, s2, s3, &s0123_lo, &s0123_hi, + tran_concat_tbl); + transpose_concat_8x4(s1, s2, s3, s4, &s1234_lo, &s1234_hi, + tran_concat_tbl); + transpose_concat_8x4(s2, s3, s4, s5, &s2345_lo, &s2345_hi, + tran_concat_tbl); + transpose_concat_8x4(s3, s4, s5, s6, &s3456_lo, &s3456_hi, + tran_concat_tbl); + transpose_concat_8x4(s4, s5, s6, s7, &s4567_lo, &s4567_hi, + tran_concat_tbl); + transpose_concat_8x4(s5, s6, s7, s8, &s5678_lo, &s5678_hi, + tran_concat_tbl); + transpose_concat_8x4(s6, s7, s8, s9, &s6789_lo, &s6789_hi, + tran_concat_tbl); + + do { + load_u8_8x4(s, src_stride, &s7, &s8, &s9, &s10); + + transpose_concat_8x4(s7, s8, s9, s10, &s78910_lo, &s78910_hi, + tran_concat_tbl); + + /* Merge new data into block from previous iteration. */ + samples_LUT.val[0] = s3456_lo; + samples_LUT.val[1] = s78910_lo; + s4567_lo = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[0]); + s5678_lo = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[1]); + s6789_lo = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[2]); + + samples_LUT.val[0] = s3456_hi; + samples_LUT.val[1] = s78910_hi; + s4567_hi = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[0]); + s5678_hi = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[1]); + s6789_hi = vqtbl2q_u8(samples_LUT, merge_block_tbl.val[2]); + + d0 = convolve8_8_usdot_partial(s0123_lo, s4567_lo, s0123_hi, s4567_hi, + filters); + d1 = convolve8_8_usdot_partial(s1234_lo, s5678_lo, s1234_hi, s5678_hi, + filters); + d2 = convolve8_8_usdot_partial(s2345_lo, s6789_lo, s2345_hi, s6789_hi, + filters); + d3 = convolve8_8_usdot_partial(s3456_lo, s78910_lo, s3456_hi, s78910_hi, + filters); + + load_u8_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3); + + d0 = vrhadd_u8(d0, dd0); + d1 = vrhadd_u8(d1, dd1); + d2 = vrhadd_u8(d2, dd2); + d3 = vrhadd_u8(d3, dd3); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + /* Prepare block for next iteration - re-using as much as possible. */ + /* Shuffle everything up four rows. */ + s0123_lo = s4567_lo; + s0123_hi = s4567_hi; + s1234_lo = s5678_lo; + s1234_hi = s5678_hi; + s2345_lo = s6789_lo; + s2345_hi = s6789_hi; + s3456_lo = s78910_lo; + s3456_hi = s78910_hi; + + s += 4 * src_stride; + d += 4 * dst_stride; + height -= 4; + } while (height > 0); + src += 8; + dst += 8; + w -= 8; + } while (w > 0); + } +} + +#else // !defined(__ARM_FEATURE_MATMUL_INT8) + +void vpx_convolve8_horiz_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, int w, + int h) { + const int8x8_t filters = vmovn_s16(vld1q_s16(filter[x0_q4])); + const int16x8_t correct_tmp = vmulq_n_s16(vld1q_s16(filter[x0_q4]), 128); + const int32x4_t correction = vdupq_n_s32((int32_t)vaddvq_s16(correct_tmp)); + const uint8x16_t range_limit = vdupq_n_u8(128); + uint8x16_t s0, s1, s2, s3; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(x_step_q4 == 16); + + (void)x_step_q4; + (void)y0_q4; + (void)y_step_q4; + + src -= 3; + + if (w == 4) { + const uint8x16x2_t permute_tbl = vld1q_u8_x2(dot_prod_permute_tbl); + do { + int32x4_t t0, t1, t2, t3; + int16x8_t t01, t23; + uint8x8_t d01, d23; + + load_u8_16x4(src, src_stride, &s0, &s1, &s2, &s3); + + t0 = convolve8_4_sdot(s0, filters, correction, range_limit, permute_tbl); + t1 = convolve8_4_sdot(s1, filters, correction, range_limit, permute_tbl); + t2 = convolve8_4_sdot(s2, filters, correction, range_limit, permute_tbl); + t3 = convolve8_4_sdot(s3, filters, correction, range_limit, permute_tbl); + t01 = vcombine_s16(vqmovn_s32(t0), vqmovn_s32(t1)); + t23 = vcombine_s16(vqmovn_s32(t2), vqmovn_s32(t3)); + d01 = vqrshrun_n_s16(t01, 7); + d23 = vqrshrun_n_s16(t23, 7); + + store_u8(dst + 0 * dst_stride, dst_stride, d01); + store_u8(dst + 2 * dst_stride, dst_stride, d23); + + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } else { + const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); + const uint8_t *s; + uint8_t *d; + int width; + uint8x8_t d0, d1, d2, d3; + + do { + width = w; + s = src; + d = dst; + do { + load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); + + d0 = + convolve8_8_sdot(s0, filters, correction, range_limit, permute_tbl); + d1 = + convolve8_8_sdot(s1, filters, correction, range_limit, permute_tbl); + d2 = + convolve8_8_sdot(s2, filters, correction, range_limit, permute_tbl); + d3 = + convolve8_8_sdot(s3, filters, correction, range_limit, permute_tbl); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + s += 8; + d += 8; + width -= 8; + } while (width > 0); + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } +} + +void vpx_convolve8_avg_horiz_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, + int w, int h) { + const int8x8_t filters = vmovn_s16(vld1q_s16(filter[x0_q4])); + const int16x8_t correct_tmp = vmulq_n_s16(vld1q_s16(filter[x0_q4]), 128); + const int32x4_t correction = vdupq_n_s32((int32_t)vaddvq_s16(correct_tmp)); + const uint8x16_t range_limit = vdupq_n_u8(128); + uint8x16_t s0, s1, s2, s3; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(x_step_q4 == 16); + + (void)x_step_q4; + (void)y0_q4; + (void)y_step_q4; + + src -= 3; + + if (w == 4) { + const uint8x16x2_t permute_tbl = vld1q_u8_x2(dot_prod_permute_tbl); + do { + int32x4_t t0, t1, t2, t3; + int16x8_t t01, t23; + uint8x8_t d01, d23, dd01, dd23; + dd01 = vdup_n_u8(0); + dd23 = vdup_n_u8(0); + + load_u8_16x4(src, src_stride, &s0, &s1, &s2, &s3); + + t0 = convolve8_4_sdot(s0, filters, correction, range_limit, permute_tbl); + t1 = convolve8_4_sdot(s1, filters, correction, range_limit, permute_tbl); + t2 = convolve8_4_sdot(s2, filters, correction, range_limit, permute_tbl); + t3 = convolve8_4_sdot(s3, filters, correction, range_limit, permute_tbl); + t01 = vcombine_s16(vqmovn_s32(t0), vqmovn_s32(t1)); + t23 = vcombine_s16(vqmovn_s32(t2), vqmovn_s32(t3)); + d01 = vqrshrun_n_s16(t01, 7); + d23 = vqrshrun_n_s16(t23, 7); + + dd01 = load_u8(dst + 0 * dst_stride, dst_stride); + dd23 = load_u8(dst + 2 * dst_stride, dst_stride); + + d01 = vrhadd_u8(d01, dd01); + d23 = vrhadd_u8(d23, dd23); + + store_u8(dst + 0 * dst_stride, dst_stride, d01); + store_u8(dst + 2 * dst_stride, dst_stride, d23); + + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } else { + const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); + const uint8_t *s; + uint8_t *d; + int width; + uint8x8_t d0, d1, d2, d3, dd0, dd1, dd2, dd3; + + do { + width = w; + s = src; + d = dst; + do { + load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); + + d0 = + convolve8_8_sdot(s0, filters, correction, range_limit, permute_tbl); + d1 = + convolve8_8_sdot(s1, filters, correction, range_limit, permute_tbl); + d2 = + convolve8_8_sdot(s2, filters, correction, range_limit, permute_tbl); + d3 = + convolve8_8_sdot(s3, filters, correction, range_limit, permute_tbl); + + load_u8_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3); + + d0 = vrhadd_u8(d0, dd0); + d1 = vrhadd_u8(d1, dd1); + d2 = vrhadd_u8(d2, dd2); + d3 = vrhadd_u8(d3, dd3); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + s += 8; + d += 8; + width -= 8; + } while (width > 0); + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } +} + +static INLINE void transpose_concat_4x4(int8x8_t a0, int8x8_t a1, int8x8_t a2, + int8x8_t a3, int8x16_t *b, + const uint8x16_t permute_tbl) { + /* Transpose 8-bit elements and concatenate result rows as follows: + * a0: 00, 01, 02, 03, XX, XX, XX, XX + * a1: 10, 11, 12, 13, XX, XX, XX, XX + * a2: 20, 21, 22, 23, XX, XX, XX, XX + * a3: 30, 31, 32, 33, XX, XX, XX, XX + * + * b: 00, 10, 20, 30, 01, 11, 21, 31, 02, 12, 22, 32, 03, 13, 23, 33 + * + * The 'permute_tbl' is always 'dot_prod_tran_concat_tbl' above. Passing it + * as an argument is preferable to loading it directly from memory as this + * inline helper is called many times from the same parent function. + */ + + int8x16x2_t samples = { { vcombine_s8(a0, a1), vcombine_s8(a2, a3) } }; + *b = vqtbl2q_s8(samples, permute_tbl); +} + +static INLINE void transpose_concat_8x4(int8x8_t a0, int8x8_t a1, int8x8_t a2, + int8x8_t a3, int8x16_t *b0, + int8x16_t *b1, + const uint8x16x2_t permute_tbl) { + /* Transpose 8-bit elements and concatenate result rows as follows: + * a0: 00, 01, 02, 03, 04, 05, 06, 07 + * a1: 10, 11, 12, 13, 14, 15, 16, 17 + * a2: 20, 21, 22, 23, 24, 25, 26, 27 + * a3: 30, 31, 32, 33, 34, 35, 36, 37 + * + * b0: 00, 10, 20, 30, 01, 11, 21, 31, 02, 12, 22, 32, 03, 13, 23, 33 + * b1: 04, 14, 24, 34, 05, 15, 25, 35, 06, 16, 26, 36, 07, 17, 27, 37 + * + * The 'permute_tbl' is always 'dot_prod_tran_concat_tbl' above. Passing it + * as an argument is preferable to loading it directly from memory as this + * inline helper is called many times from the same parent function. + */ + + int8x16x2_t samples = { { vcombine_s8(a0, a1), vcombine_s8(a2, a3) } }; + *b0 = vqtbl2q_s8(samples, permute_tbl.val[0]); + *b1 = vqtbl2q_s8(samples, permute_tbl.val[1]); +} + +void vpx_convolve8_vert_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, int w, + int h) { + const int8x8_t filters = vmovn_s16(vld1q_s16(filter[y0_q4])); + const int16x8_t correct_tmp = vmulq_n_s16(vld1q_s16(filter[y0_q4]), 128); + const int32x4_t correction = vdupq_n_s32((int32_t)vaddvq_s16(correct_tmp)); + const uint8x8_t range_limit = vdup_n_u8(128); + const uint8x16x3_t merge_block_tbl = vld1q_u8_x3(dot_prod_merge_block_tbl); + uint8x8_t t0, t1, t2, t3, t4, t5, t6; + int8x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + int8x16x2_t samples_LUT; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(y_step_q4 == 16); + + (void)x0_q4; + (void)x_step_q4; + (void)y_step_q4; + + src -= 3 * src_stride; + + if (w == 4) { + const uint8x16_t tran_concat_tbl = vld1q_u8(dot_prod_tran_concat_tbl); + int8x16_t s0123, s1234, s2345, s3456, s4567, s5678, s6789, s78910; + int32x4_t d0, d1, d2, d3; + uint8x8_t d01, d23; + + load_u8_8x7(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6); + src += 7 * src_stride; + + /* Clamp sample range to [-128, 127] for 8-bit signed dot product. */ + s0 = vreinterpret_s8_u8(vsub_u8(t0, range_limit)); + s1 = vreinterpret_s8_u8(vsub_u8(t1, range_limit)); + s2 = vreinterpret_s8_u8(vsub_u8(t2, range_limit)); + s3 = vreinterpret_s8_u8(vsub_u8(t3, range_limit)); + s4 = vreinterpret_s8_u8(vsub_u8(t4, range_limit)); + s5 = vreinterpret_s8_u8(vsub_u8(t5, range_limit)); + s6 = vreinterpret_s8_u8(vsub_u8(t6, range_limit)); + s7 = vdup_n_s8(0); + s8 = vdup_n_s8(0); + s9 = vdup_n_s8(0); + + /* This operation combines a conventional transpose and the sample permute + * (see horizontal case) required before computing the dot product. + */ + transpose_concat_4x4(s0, s1, s2, s3, &s0123, tran_concat_tbl); + transpose_concat_4x4(s1, s2, s3, s4, &s1234, tran_concat_tbl); + transpose_concat_4x4(s2, s3, s4, s5, &s2345, tran_concat_tbl); + transpose_concat_4x4(s3, s4, s5, s6, &s3456, tran_concat_tbl); + transpose_concat_4x4(s4, s5, s6, s7, &s4567, tran_concat_tbl); + transpose_concat_4x4(s5, s6, s7, s8, &s5678, tran_concat_tbl); + transpose_concat_4x4(s6, s7, s8, s9, &s6789, tran_concat_tbl); + + do { + uint8x8_t t7, t8, t9, t10; + + load_u8_8x4(src, src_stride, &t7, &t8, &t9, &t10); + + s7 = vreinterpret_s8_u8(vsub_u8(t7, range_limit)); + s8 = vreinterpret_s8_u8(vsub_u8(t8, range_limit)); + s9 = vreinterpret_s8_u8(vsub_u8(t9, range_limit)); + s10 = vreinterpret_s8_u8(vsub_u8(t10, range_limit)); + + transpose_concat_4x4(s7, s8, s9, s10, &s78910, tran_concat_tbl); + + /* Merge new data into block from previous iteration. */ + samples_LUT.val[0] = s3456; + samples_LUT.val[1] = s78910; + s4567 = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[0]); + s5678 = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[1]); + s6789 = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[2]); + + d0 = convolve8_4_sdot_partial(s0123, s4567, correction, filters); + d1 = convolve8_4_sdot_partial(s1234, s5678, correction, filters); + d2 = convolve8_4_sdot_partial(s2345, s6789, correction, filters); + d3 = convolve8_4_sdot_partial(s3456, s78910, correction, filters); + d01 = vqrshrun_n_s16(vcombine_s16(vqmovn_s32(d0), vqmovn_s32(d1)), 7); + d23 = vqrshrun_n_s16(vcombine_s16(vqmovn_s32(d2), vqmovn_s32(d3)), 7); + + store_u8(dst + 0 * dst_stride, dst_stride, d01); + store_u8(dst + 2 * dst_stride, dst_stride, d23); + + /* Prepare block for next iteration - re-using as much as possible. */ + /* Shuffle everything up four rows. */ + s0123 = s4567; + s1234 = s5678; + s2345 = s6789; + s3456 = s78910; + + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } else { + const uint8x16x2_t tran_concat_tbl = vld1q_u8_x2(dot_prod_tran_concat_tbl); + int8x16_t s0123_lo, s0123_hi, s1234_lo, s1234_hi, s2345_lo, s2345_hi, + s3456_lo, s3456_hi, s4567_lo, s4567_hi, s5678_lo, s5678_hi, s6789_lo, + s6789_hi, s78910_lo, s78910_hi; + uint8x8_t d0, d1, d2, d3; + const uint8_t *s; + uint8_t *d; + int height; + + do { + height = h; + s = src; + d = dst; + + load_u8_8x7(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6); + s += 7 * src_stride; + + /* Clamp sample range to [-128, 127] for 8-bit signed dot product. */ + s0 = vreinterpret_s8_u8(vsub_u8(t0, range_limit)); + s1 = vreinterpret_s8_u8(vsub_u8(t1, range_limit)); + s2 = vreinterpret_s8_u8(vsub_u8(t2, range_limit)); + s3 = vreinterpret_s8_u8(vsub_u8(t3, range_limit)); + s4 = vreinterpret_s8_u8(vsub_u8(t4, range_limit)); + s5 = vreinterpret_s8_u8(vsub_u8(t5, range_limit)); + s6 = vreinterpret_s8_u8(vsub_u8(t6, range_limit)); + s7 = vdup_n_s8(0); + s8 = vdup_n_s8(0); + s9 = vdup_n_s8(0); + + /* This operation combines a conventional transpose and the sample permute + * (see horizontal case) required before computing the dot product. + */ + transpose_concat_8x4(s0, s1, s2, s3, &s0123_lo, &s0123_hi, + tran_concat_tbl); + transpose_concat_8x4(s1, s2, s3, s4, &s1234_lo, &s1234_hi, + tran_concat_tbl); + transpose_concat_8x4(s2, s3, s4, s5, &s2345_lo, &s2345_hi, + tran_concat_tbl); + transpose_concat_8x4(s3, s4, s5, s6, &s3456_lo, &s3456_hi, + tran_concat_tbl); + transpose_concat_8x4(s4, s5, s6, s7, &s4567_lo, &s4567_hi, + tran_concat_tbl); + transpose_concat_8x4(s5, s6, s7, s8, &s5678_lo, &s5678_hi, + tran_concat_tbl); + transpose_concat_8x4(s6, s7, s8, s9, &s6789_lo, &s6789_hi, + tran_concat_tbl); + + do { + uint8x8_t t7, t8, t9, t10; + + load_u8_8x4(s, src_stride, &t7, &t8, &t9, &t10); + + s7 = vreinterpret_s8_u8(vsub_u8(t7, range_limit)); + s8 = vreinterpret_s8_u8(vsub_u8(t8, range_limit)); + s9 = vreinterpret_s8_u8(vsub_u8(t9, range_limit)); + s10 = vreinterpret_s8_u8(vsub_u8(t10, range_limit)); + + transpose_concat_8x4(s7, s8, s9, s10, &s78910_lo, &s78910_hi, + tran_concat_tbl); + + /* Merge new data into block from previous iteration. */ + samples_LUT.val[0] = s3456_lo; + samples_LUT.val[1] = s78910_lo; + s4567_lo = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[0]); + s5678_lo = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[1]); + s6789_lo = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[2]); + + samples_LUT.val[0] = s3456_hi; + samples_LUT.val[1] = s78910_hi; + s4567_hi = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[0]); + s5678_hi = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[1]); + s6789_hi = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[2]); + + d0 = convolve8_8_sdot_partial(s0123_lo, s4567_lo, s0123_hi, s4567_hi, + correction, filters); + d1 = convolve8_8_sdot_partial(s1234_lo, s5678_lo, s1234_hi, s5678_hi, + correction, filters); + d2 = convolve8_8_sdot_partial(s2345_lo, s6789_lo, s2345_hi, s6789_hi, + correction, filters); + d3 = convolve8_8_sdot_partial(s3456_lo, s78910_lo, s3456_hi, s78910_hi, + correction, filters); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + /* Prepare block for next iteration - re-using as much as possible. */ + /* Shuffle everything up four rows. */ + s0123_lo = s4567_lo; + s0123_hi = s4567_hi; + s1234_lo = s5678_lo; + s1234_hi = s5678_hi; + s2345_lo = s6789_lo; + s2345_hi = s6789_hi; + s3456_lo = s78910_lo; + s3456_hi = s78910_hi; + + s += 4 * src_stride; + d += 4 * dst_stride; + height -= 4; + } while (height > 0); + src += 8; + dst += 8; + w -= 8; + } while (w > 0); + } +} + +void vpx_convolve8_avg_vert_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, int w, + int h) { + const int8x8_t filters = vmovn_s16(vld1q_s16(filter[y0_q4])); + const int16x8_t correct_tmp = vmulq_n_s16(vld1q_s16(filter[y0_q4]), 128); + const int32x4_t correction = vdupq_n_s32((int32_t)vaddvq_s16(correct_tmp)); + const uint8x8_t range_limit = vdup_n_u8(128); + const uint8x16x3_t merge_block_tbl = vld1q_u8_x3(dot_prod_merge_block_tbl); + uint8x8_t t0, t1, t2, t3, t4, t5, t6; + int8x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + int8x16x2_t samples_LUT; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(y_step_q4 == 16); + + (void)x0_q4; + (void)x_step_q4; + (void)y_step_q4; + + src -= 3 * src_stride; + + if (w == 4) { + const uint8x16_t tran_concat_tbl = vld1q_u8(dot_prod_tran_concat_tbl); + int8x16_t s0123, s1234, s2345, s3456, s4567, s5678, s6789, s78910; + int32x4_t d0, d1, d2, d3; + uint8x8_t d01, d23, dd01, dd23; + + load_u8_8x7(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6); + src += 7 * src_stride; + + /* Clamp sample range to [-128, 127] for 8-bit signed dot product. */ + s0 = vreinterpret_s8_u8(vsub_u8(t0, range_limit)); + s1 = vreinterpret_s8_u8(vsub_u8(t1, range_limit)); + s2 = vreinterpret_s8_u8(vsub_u8(t2, range_limit)); + s3 = vreinterpret_s8_u8(vsub_u8(t3, range_limit)); + s4 = vreinterpret_s8_u8(vsub_u8(t4, range_limit)); + s5 = vreinterpret_s8_u8(vsub_u8(t5, range_limit)); + s6 = vreinterpret_s8_u8(vsub_u8(t6, range_limit)); + s7 = vdup_n_s8(0); + s8 = vdup_n_s8(0); + s9 = vdup_n_s8(0); + + /* This operation combines a conventional transpose and the sample permute + * (see horizontal case) required before computing the dot product. + */ + transpose_concat_4x4(s0, s1, s2, s3, &s0123, tran_concat_tbl); + transpose_concat_4x4(s1, s2, s3, s4, &s1234, tran_concat_tbl); + transpose_concat_4x4(s2, s3, s4, s5, &s2345, tran_concat_tbl); + transpose_concat_4x4(s3, s4, s5, s6, &s3456, tran_concat_tbl); + transpose_concat_4x4(s4, s5, s6, s7, &s4567, tran_concat_tbl); + transpose_concat_4x4(s5, s6, s7, s8, &s5678, tran_concat_tbl); + transpose_concat_4x4(s6, s7, s8, s9, &s6789, tran_concat_tbl); + + do { + uint8x8_t t7, t8, t9, t10; + + load_u8_8x4(src, src_stride, &t7, &t8, &t9, &t10); + + s7 = vreinterpret_s8_u8(vsub_u8(t7, range_limit)); + s8 = vreinterpret_s8_u8(vsub_u8(t8, range_limit)); + s9 = vreinterpret_s8_u8(vsub_u8(t9, range_limit)); + s10 = vreinterpret_s8_u8(vsub_u8(t10, range_limit)); + + transpose_concat_4x4(s7, s8, s9, s10, &s78910, tran_concat_tbl); + + /* Merge new data into block from previous iteration. */ + samples_LUT.val[0] = s3456; + samples_LUT.val[1] = s78910; + s4567 = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[0]); + s5678 = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[1]); + s6789 = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[2]); + + d0 = convolve8_4_sdot_partial(s0123, s4567, correction, filters); + d1 = convolve8_4_sdot_partial(s1234, s5678, correction, filters); + d2 = convolve8_4_sdot_partial(s2345, s6789, correction, filters); + d3 = convolve8_4_sdot_partial(s3456, s78910, correction, filters); + d01 = vqrshrun_n_s16(vcombine_s16(vqmovn_s32(d0), vqmovn_s32(d1)), 7); + d23 = vqrshrun_n_s16(vcombine_s16(vqmovn_s32(d2), vqmovn_s32(d3)), 7); + + dd01 = load_u8(dst + 0 * dst_stride, dst_stride); + dd23 = load_u8(dst + 2 * dst_stride, dst_stride); + + d01 = vrhadd_u8(d01, dd01); + d23 = vrhadd_u8(d23, dd23); + + store_u8(dst + 0 * dst_stride, dst_stride, d01); + store_u8(dst + 2 * dst_stride, dst_stride, d23); + + /* Prepare block for next iteration - re-using as much as possible. */ + /* Shuffle everything up four rows. */ + s0123 = s4567; + s1234 = s5678; + s2345 = s6789; + s3456 = s78910; + + src += 4 * src_stride; + dst += 4 * dst_stride; + h -= 4; + } while (h > 0); + } else { + const uint8x16x2_t tran_concat_tbl = vld1q_u8_x2(dot_prod_tran_concat_tbl); + int8x16_t s0123_lo, s0123_hi, s1234_lo, s1234_hi, s2345_lo, s2345_hi, + s3456_lo, s3456_hi, s4567_lo, s4567_hi, s5678_lo, s5678_hi, s6789_lo, + s6789_hi, s78910_lo, s78910_hi; + uint8x8_t d0, d1, d2, d3, dd0, dd1, dd2, dd3; + const uint8_t *s; + uint8_t *d; + int height; + + do { + height = h; + s = src; + d = dst; + + load_u8_8x7(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6); + s += 7 * src_stride; + + /* Clamp sample range to [-128, 127] for 8-bit signed dot product. */ + s0 = vreinterpret_s8_u8(vsub_u8(t0, range_limit)); + s1 = vreinterpret_s8_u8(vsub_u8(t1, range_limit)); + s2 = vreinterpret_s8_u8(vsub_u8(t2, range_limit)); + s3 = vreinterpret_s8_u8(vsub_u8(t3, range_limit)); + s4 = vreinterpret_s8_u8(vsub_u8(t4, range_limit)); + s5 = vreinterpret_s8_u8(vsub_u8(t5, range_limit)); + s6 = vreinterpret_s8_u8(vsub_u8(t6, range_limit)); + s7 = vdup_n_s8(0); + s8 = vdup_n_s8(0); + s9 = vdup_n_s8(0); + + /* This operation combines a conventional transpose and the sample permute + * (see horizontal case) required before computing the dot product. + */ + transpose_concat_8x4(s0, s1, s2, s3, &s0123_lo, &s0123_hi, + tran_concat_tbl); + transpose_concat_8x4(s1, s2, s3, s4, &s1234_lo, &s1234_hi, + tran_concat_tbl); + transpose_concat_8x4(s2, s3, s4, s5, &s2345_lo, &s2345_hi, + tran_concat_tbl); + transpose_concat_8x4(s3, s4, s5, s6, &s3456_lo, &s3456_hi, + tran_concat_tbl); + transpose_concat_8x4(s4, s5, s6, s7, &s4567_lo, &s4567_hi, + tran_concat_tbl); + transpose_concat_8x4(s5, s6, s7, s8, &s5678_lo, &s5678_hi, + tran_concat_tbl); + transpose_concat_8x4(s6, s7, s8, s9, &s6789_lo, &s6789_hi, + tran_concat_tbl); + + do { + uint8x8_t t7, t8, t9, t10; + + load_u8_8x4(s, src_stride, &t7, &t8, &t9, &t10); + + s7 = vreinterpret_s8_u8(vsub_u8(t7, range_limit)); + s8 = vreinterpret_s8_u8(vsub_u8(t8, range_limit)); + s9 = vreinterpret_s8_u8(vsub_u8(t9, range_limit)); + s10 = vreinterpret_s8_u8(vsub_u8(t10, range_limit)); + + transpose_concat_8x4(s7, s8, s9, s10, &s78910_lo, &s78910_hi, + tran_concat_tbl); + + /* Merge new data into block from previous iteration. */ + samples_LUT.val[0] = s3456_lo; + samples_LUT.val[1] = s78910_lo; + s4567_lo = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[0]); + s5678_lo = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[1]); + s6789_lo = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[2]); + + samples_LUT.val[0] = s3456_hi; + samples_LUT.val[1] = s78910_hi; + s4567_hi = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[0]); + s5678_hi = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[1]); + s6789_hi = vqtbl2q_s8(samples_LUT, merge_block_tbl.val[2]); + + d0 = convolve8_8_sdot_partial(s0123_lo, s4567_lo, s0123_hi, s4567_hi, + correction, filters); + d1 = convolve8_8_sdot_partial(s1234_lo, s5678_lo, s1234_hi, s5678_hi, + correction, filters); + d2 = convolve8_8_sdot_partial(s2345_lo, s6789_lo, s2345_hi, s6789_hi, + correction, filters); + d3 = convolve8_8_sdot_partial(s3456_lo, s78910_lo, s3456_hi, s78910_hi, + correction, filters); + + load_u8_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3); + + d0 = vrhadd_u8(d0, dd0); + d1 = vrhadd_u8(d1, dd1); + d2 = vrhadd_u8(d2, dd2); + d3 = vrhadd_u8(d3, dd3); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + /* Prepare block for next iteration - re-using as much as possible. */ + /* Shuffle everything up four rows. */ + s0123_lo = s4567_lo; + s0123_hi = s4567_hi; + s1234_lo = s5678_lo; + s1234_hi = s5678_hi; + s2345_lo = s6789_lo; + s2345_hi = s6789_hi; + s3456_lo = s78910_lo; + s3456_hi = s78910_hi; + + s += 4 * src_stride; + d += 4 * dst_stride; + height -= 4; + } while (height > 0); + src += 8; + dst += 8; + w -= 8; + } while (w > 0); + } +} + +#endif // defined(__ARM_FEATURE_MATMUL_INT8) + +#else // !(VPX_ARCH_AARCH64 && + // (defined(__ARM_FEATURE_DOTPROD) || + // defined(__ARM_FEATURE_MATMUL_INT8))) + +void vpx_convolve8_horiz_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, int w, + int h) { + const int16x8_t filters = vld1q_s16(filter[x0_q4]); + uint8x8_t t0, t1, t2, t3; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(x_step_q4 == 16); + + (void)x_step_q4; + (void)y0_q4; + (void)y_step_q4; + + src -= 3; + + if (h == 4) { + uint8x8_t d01, d23; + int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3; + int16x8_t tt0, tt1, tt2, tt3; + + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + load_u8_8x4(src, src_stride, &t0, &t1, &t2, &t3); + transpose_u8_8x4(&t0, &t1, &t2, &t3); + tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); + tt1 = vreinterpretq_s16_u16(vmovl_u8(t1)); + tt2 = vreinterpretq_s16_u16(vmovl_u8(t2)); + tt3 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s0 = vget_low_s16(tt0); + s1 = vget_low_s16(tt1); + s2 = vget_low_s16(tt2); + s3 = vget_low_s16(tt3); + s4 = vget_high_s16(tt0); + s5 = vget_high_s16(tt1); + s6 = vget_high_s16(tt2); + __builtin_prefetch(dst + 0 * dst_stride); + __builtin_prefetch(dst + 1 * dst_stride); + __builtin_prefetch(dst + 2 * dst_stride); + __builtin_prefetch(dst + 3 * dst_stride); + src += 7; + + do { + load_u8_8x4(src, src_stride, &t0, &t1, &t2, &t3); + transpose_u8_8x4(&t0, &t1, &t2, &t3); + tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); + tt1 = vreinterpretq_s16_u16(vmovl_u8(t1)); + tt2 = vreinterpretq_s16_u16(vmovl_u8(t2)); + tt3 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s7 = vget_low_s16(tt0); + s8 = vget_low_s16(tt1); + s9 = vget_low_s16(tt2); + s10 = vget_low_s16(tt3); + + d0 = convolve8_4(s0, s1, s2, s3, s4, s5, s6, s7, filters); + d1 = convolve8_4(s1, s2, s3, s4, s5, s6, s7, s8, filters); + d2 = convolve8_4(s2, s3, s4, s5, s6, s7, s8, s9, filters); + d3 = convolve8_4(s3, s4, s5, s6, s7, s8, s9, s10, filters); + + d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), 7); + d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), 7); + transpose_u8_4x4(&d01, &d23); + + vst1_lane_u32((uint32_t *)(dst + 0 * dst_stride), + vreinterpret_u32_u8(d01), 0); + vst1_lane_u32((uint32_t *)(dst + 1 * dst_stride), + vreinterpret_u32_u8(d23), 0); + vst1_lane_u32((uint32_t *)(dst + 2 * dst_stride), + vreinterpret_u32_u8(d01), 1); + vst1_lane_u32((uint32_t *)(dst + 3 * dst_stride), + vreinterpret_u32_u8(d23), 1); + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + src += 4; + dst += 4; + w -= 4; + } while (w != 0); + } else { + int width; + const uint8_t *s; + uint8x8_t t4, t5, t6, t7; + int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + + if (w == 4) { + do { + load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); + s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); + s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); + s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); + s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); + s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); + + load_u8_8x8(src + 7, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, + &t7); + src += 8 * src_stride; + __builtin_prefetch(dst + 0 * dst_stride); + __builtin_prefetch(dst + 1 * dst_stride); + __builtin_prefetch(dst + 2 * dst_stride); + __builtin_prefetch(dst + 3 * dst_stride); + __builtin_prefetch(dst + 4 * dst_stride); + __builtin_prefetch(dst + 5 * dst_stride); + __builtin_prefetch(dst + 6 * dst_stride); + __builtin_prefetch(dst + 7 * dst_stride); + transpose_u8_4x8(&t0, &t1, &t2, &t3, t4, t5, t6, t7); + s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); + s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); + s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); + s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); + + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + __builtin_prefetch(src + 4 * src_stride); + __builtin_prefetch(src + 5 * src_stride); + __builtin_prefetch(src + 6 * src_stride); + __builtin_prefetch(src + 7 * src_stride); + t0 = convolve8_8(s0, s1, s2, s3, s4, s5, s6, s7, filters); + t1 = convolve8_8(s1, s2, s3, s4, s5, s6, s7, s8, filters); + t2 = convolve8_8(s2, s3, s4, s5, s6, s7, s8, s9, filters); + t3 = convolve8_8(s3, s4, s5, s6, s7, s8, s9, s10, filters); + + transpose_u8_8x4(&t0, &t1, &t2, &t3); + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0), 0); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t1), 0); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t2), 0); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t3), 0); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0), 1); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t1), 1); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t2), 1); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t3), 1); + dst += dst_stride; + h -= 8; + } while (h > 0); + } else { + uint8_t *d; + int16x8_t s11, s12, s13, s14; + + do { + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + __builtin_prefetch(src + 4 * src_stride); + __builtin_prefetch(src + 5 * src_stride); + __builtin_prefetch(src + 6 * src_stride); + __builtin_prefetch(src + 7 * src_stride); + load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); + s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); + s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); + s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); + s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); + s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); + + width = w; + s = src + 7; + d = dst; + __builtin_prefetch(dst + 0 * dst_stride); + __builtin_prefetch(dst + 1 * dst_stride); + __builtin_prefetch(dst + 2 * dst_stride); + __builtin_prefetch(dst + 3 * dst_stride); + __builtin_prefetch(dst + 4 * dst_stride); + __builtin_prefetch(dst + 5 * dst_stride); + __builtin_prefetch(dst + 6 * dst_stride); + __builtin_prefetch(dst + 7 * dst_stride); + + do { + load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); + s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); + s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); + s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s11 = vreinterpretq_s16_u16(vmovl_u8(t4)); + s12 = vreinterpretq_s16_u16(vmovl_u8(t5)); + s13 = vreinterpretq_s16_u16(vmovl_u8(t6)); + s14 = vreinterpretq_s16_u16(vmovl_u8(t7)); + + t0 = convolve8_8(s0, s1, s2, s3, s4, s5, s6, s7, filters); + t1 = convolve8_8(s1, s2, s3, s4, s5, s6, s7, s8, filters); + t2 = convolve8_8(s2, s3, s4, s5, s6, s7, s8, s9, filters); + t3 = convolve8_8(s3, s4, s5, s6, s7, s8, s9, s10, filters); + t4 = convolve8_8(s4, s5, s6, s7, s8, s9, s10, s11, filters); + t5 = convolve8_8(s5, s6, s7, s8, s9, s10, s11, s12, filters); + t6 = convolve8_8(s6, s7, s8, s9, s10, s11, s12, s13, filters); + t7 = convolve8_8(s7, s8, s9, s10, s11, s12, s13, s14, filters); + + transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + store_u8_8x8(d, dst_stride, t0, t1, t2, t3, t4, t5, t6, t7); + + s0 = s8; + s1 = s9; + s2 = s10; + s3 = s11; + s4 = s12; + s5 = s13; + s6 = s14; + s += 8; + d += 8; + width -= 8; + } while (width != 0); + src += 8 * src_stride; + dst += 8 * dst_stride; + h -= 8; + } while (h > 0); + } + } +} + +void vpx_convolve8_avg_horiz_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, + int w, int h) { + const int16x8_t filters = vld1q_s16(filter[x0_q4]); + uint8x8_t t0, t1, t2, t3; + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(x_step_q4 == 16); + + (void)x_step_q4; + (void)y0_q4; + (void)y_step_q4; + + src -= 3; + + if (h == 4) { + uint8x8_t d01, d23; + int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3; + int16x8_t tt0, tt1, tt2, tt3; + uint32x4_t d0123 = vdupq_n_u32(0); + + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + load_u8_8x4(src, src_stride, &t0, &t1, &t2, &t3); + transpose_u8_8x4(&t0, &t1, &t2, &t3); + tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); + tt1 = vreinterpretq_s16_u16(vmovl_u8(t1)); + tt2 = vreinterpretq_s16_u16(vmovl_u8(t2)); + tt3 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s0 = vget_low_s16(tt0); + s1 = vget_low_s16(tt1); + s2 = vget_low_s16(tt2); + s3 = vget_low_s16(tt3); + s4 = vget_high_s16(tt0); + s5 = vget_high_s16(tt1); + s6 = vget_high_s16(tt2); + __builtin_prefetch(dst + 0 * dst_stride); + __builtin_prefetch(dst + 1 * dst_stride); + __builtin_prefetch(dst + 2 * dst_stride); + __builtin_prefetch(dst + 3 * dst_stride); + src += 7; + + do { + load_u8_8x4(src, src_stride, &t0, &t1, &t2, &t3); + transpose_u8_8x4(&t0, &t1, &t2, &t3); + tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); + tt1 = vreinterpretq_s16_u16(vmovl_u8(t1)); + tt2 = vreinterpretq_s16_u16(vmovl_u8(t2)); + tt3 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s7 = vget_low_s16(tt0); + s8 = vget_low_s16(tt1); + s9 = vget_low_s16(tt2); + s10 = vget_low_s16(tt3); + + d0 = convolve8_4(s0, s1, s2, s3, s4, s5, s6, s7, filters); + d1 = convolve8_4(s1, s2, s3, s4, s5, s6, s7, s8, filters); + d2 = convolve8_4(s2, s3, s4, s5, s6, s7, s8, s9, filters); + d3 = convolve8_4(s3, s4, s5, s6, s7, s8, s9, s10, filters); + + d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), 7); + d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), 7); + transpose_u8_4x4(&d01, &d23); + + d0123 = vld1q_lane_u32((uint32_t *)(dst + 0 * dst_stride), d0123, 0); + d0123 = vld1q_lane_u32((uint32_t *)(dst + 1 * dst_stride), d0123, 2); + d0123 = vld1q_lane_u32((uint32_t *)(dst + 2 * dst_stride), d0123, 1); + d0123 = vld1q_lane_u32((uint32_t *)(dst + 3 * dst_stride), d0123, 3); + d0123 = vreinterpretq_u32_u8( + vrhaddq_u8(vreinterpretq_u8_u32(d0123), vcombine_u8(d01, d23))); + + vst1q_lane_u32((uint32_t *)(dst + 0 * dst_stride), d0123, 0); + vst1q_lane_u32((uint32_t *)(dst + 1 * dst_stride), d0123, 2); + vst1q_lane_u32((uint32_t *)(dst + 2 * dst_stride), d0123, 1); + vst1q_lane_u32((uint32_t *)(dst + 3 * dst_stride), d0123, 3); + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + src += 4; + dst += 4; + w -= 4; + } while (w != 0); + } else { + int width; + const uint8_t *s; + uint8x8_t t4, t5, t6, t7; + int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + + if (w == 4) { + uint32x4_t d0415 = vdupq_n_u32(0); + uint32x4_t d2637 = vdupq_n_u32(0); + do { + load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); + s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); + s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); + s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); + s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); + s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); + + load_u8_8x8(src + 7, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, + &t7); + src += 8 * src_stride; + __builtin_prefetch(dst + 0 * dst_stride); + __builtin_prefetch(dst + 1 * dst_stride); + __builtin_prefetch(dst + 2 * dst_stride); + __builtin_prefetch(dst + 3 * dst_stride); + __builtin_prefetch(dst + 4 * dst_stride); + __builtin_prefetch(dst + 5 * dst_stride); + __builtin_prefetch(dst + 6 * dst_stride); + __builtin_prefetch(dst + 7 * dst_stride); + transpose_u8_4x8(&t0, &t1, &t2, &t3, t4, t5, t6, t7); + s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); + s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); + s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); + s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); + + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + __builtin_prefetch(src + 4 * src_stride); + __builtin_prefetch(src + 5 * src_stride); + __builtin_prefetch(src + 6 * src_stride); + __builtin_prefetch(src + 7 * src_stride); + t0 = convolve8_8(s0, s1, s2, s3, s4, s5, s6, s7, filters); + t1 = convolve8_8(s1, s2, s3, s4, s5, s6, s7, s8, filters); + t2 = convolve8_8(s2, s3, s4, s5, s6, s7, s8, s9, filters); + t3 = convolve8_8(s3, s4, s5, s6, s7, s8, s9, s10, filters); + + transpose_u8_8x4(&t0, &t1, &t2, &t3); + + d0415 = vld1q_lane_u32((uint32_t *)(dst + 0 * dst_stride), d0415, 0); + d0415 = vld1q_lane_u32((uint32_t *)(dst + 1 * dst_stride), d0415, 2); + d2637 = vld1q_lane_u32((uint32_t *)(dst + 2 * dst_stride), d2637, 0); + d2637 = vld1q_lane_u32((uint32_t *)(dst + 3 * dst_stride), d2637, 2); + d0415 = vld1q_lane_u32((uint32_t *)(dst + 4 * dst_stride), d0415, 1); + d0415 = vld1q_lane_u32((uint32_t *)(dst + 5 * dst_stride), d0415, 3); + d2637 = vld1q_lane_u32((uint32_t *)(dst + 6 * dst_stride), d2637, 1); + d2637 = vld1q_lane_u32((uint32_t *)(dst + 7 * dst_stride), d2637, 3); + d0415 = vreinterpretq_u32_u8( + vrhaddq_u8(vreinterpretq_u8_u32(d0415), vcombine_u8(t0, t1))); + d2637 = vreinterpretq_u32_u8( + vrhaddq_u8(vreinterpretq_u8_u32(d2637), vcombine_u8(t2, t3))); + + vst1q_lane_u32((uint32_t *)dst, d0415, 0); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d0415, 2); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d2637, 0); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d2637, 2); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d0415, 1); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d0415, 3); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d2637, 1); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d2637, 3); + dst += dst_stride; + h -= 8; + } while (h > 0); + } else { + uint8_t *d; + int16x8_t s11, s12, s13, s14; + uint8x16_t d01, d23, d45, d67; + + do { + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + __builtin_prefetch(src + 4 * src_stride); + __builtin_prefetch(src + 5 * src_stride); + __builtin_prefetch(src + 6 * src_stride); + __builtin_prefetch(src + 7 * src_stride); + load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); + s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); + s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); + s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); + s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); + s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); + + width = w; + s = src + 7; + d = dst; + __builtin_prefetch(dst + 0 * dst_stride); + __builtin_prefetch(dst + 1 * dst_stride); + __builtin_prefetch(dst + 2 * dst_stride); + __builtin_prefetch(dst + 3 * dst_stride); + __builtin_prefetch(dst + 4 * dst_stride); + __builtin_prefetch(dst + 5 * dst_stride); + __builtin_prefetch(dst + 6 * dst_stride); + __builtin_prefetch(dst + 7 * dst_stride); + + do { + load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); + s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); + s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); + s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); + s11 = vreinterpretq_s16_u16(vmovl_u8(t4)); + s12 = vreinterpretq_s16_u16(vmovl_u8(t5)); + s13 = vreinterpretq_s16_u16(vmovl_u8(t6)); + s14 = vreinterpretq_s16_u16(vmovl_u8(t7)); + + t0 = convolve8_8(s0, s1, s2, s3, s4, s5, s6, s7, filters); + t1 = convolve8_8(s1, s2, s3, s4, s5, s6, s7, s8, filters); + t2 = convolve8_8(s2, s3, s4, s5, s6, s7, s8, s9, filters); + t3 = convolve8_8(s3, s4, s5, s6, s7, s8, s9, s10, filters); + t4 = convolve8_8(s4, s5, s6, s7, s8, s9, s10, s11, filters); + t5 = convolve8_8(s5, s6, s7, s8, s9, s10, s11, s12, filters); + t6 = convolve8_8(s6, s7, s8, s9, s10, s11, s12, s13, filters); + t7 = convolve8_8(s7, s8, s9, s10, s11, s12, s13, s14, filters); + + transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); + + d01 = vcombine_u8(vld1_u8(d + 0 * dst_stride), + vld1_u8(d + 1 * dst_stride)); + d23 = vcombine_u8(vld1_u8(d + 2 * dst_stride), + vld1_u8(d + 3 * dst_stride)); + d45 = vcombine_u8(vld1_u8(d + 4 * dst_stride), + vld1_u8(d + 5 * dst_stride)); + d67 = vcombine_u8(vld1_u8(d + 6 * dst_stride), + vld1_u8(d + 7 * dst_stride)); + d01 = vrhaddq_u8(d01, vcombine_u8(t0, t1)); + d23 = vrhaddq_u8(d23, vcombine_u8(t2, t3)); + d45 = vrhaddq_u8(d45, vcombine_u8(t4, t5)); + d67 = vrhaddq_u8(d67, vcombine_u8(t6, t7)); + + store_u8_8x8(d, dst_stride, vget_low_u8(d01), vget_high_u8(d01), + vget_low_u8(d23), vget_high_u8(d23), vget_low_u8(d45), + vget_high_u8(d45), vget_low_u8(d67), vget_high_u8(d67)); + + s0 = s8; + s1 = s9; + s2 = s10; + s3 = s11; + s4 = s12; + s5 = s13; + s6 = s14; + s += 8; + d += 8; + width -= 8; + } while (width != 0); + src += 8 * src_stride; + dst += 8 * dst_stride; + h -= 8; + } while (h > 0); + } + } +} + +void vpx_convolve8_vert_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, int w, + int h) { + const int16x8_t filters = vld1q_s16(filter[y0_q4]); + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(y_step_q4 == 16); + + (void)x0_q4; + (void)x_step_q4; + (void)y_step_q4; + + src -= 3 * src_stride; + + if (w == 4) { + uint8x8_t d01, d23; + int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3; + + s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + + do { + s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s9 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s10 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + + __builtin_prefetch(dst + 0 * dst_stride); + __builtin_prefetch(dst + 1 * dst_stride); + __builtin_prefetch(dst + 2 * dst_stride); + __builtin_prefetch(dst + 3 * dst_stride); + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + d0 = convolve8_4(s0, s1, s2, s3, s4, s5, s6, s7, filters); + d1 = convolve8_4(s1, s2, s3, s4, s5, s6, s7, s8, filters); + d2 = convolve8_4(s2, s3, s4, s5, s6, s7, s8, s9, filters); + d3 = convolve8_4(s3, s4, s5, s6, s7, s8, s9, s10, filters); + + d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), 7); + d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), 7); + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01), 0); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01), 1); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d23), 0); + dst += dst_stride; + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d23), 1); + dst += dst_stride; + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + h -= 4; + } while (h != 0); + } else { + int height; + const uint8_t *s; + uint8_t *d; + uint8x8_t t0, t1, t2, t3; + int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + + do { + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + __builtin_prefetch(src + 4 * src_stride); + __builtin_prefetch(src + 5 * src_stride); + __builtin_prefetch(src + 6 * src_stride); + s = src; + s0 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s1 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s2 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s3 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s4 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s5 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s6 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + d = dst; + height = h; + + do { + s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s8 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s9 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s10 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + + __builtin_prefetch(d + 0 * dst_stride); + __builtin_prefetch(d + 1 * dst_stride); + __builtin_prefetch(d + 2 * dst_stride); + __builtin_prefetch(d + 3 * dst_stride); + __builtin_prefetch(s + 0 * src_stride); + __builtin_prefetch(s + 1 * src_stride); + __builtin_prefetch(s + 2 * src_stride); + __builtin_prefetch(s + 3 * src_stride); + t0 = convolve8_8(s0, s1, s2, s3, s4, s5, s6, s7, filters); + t1 = convolve8_8(s1, s2, s3, s4, s5, s6, s7, s8, filters); + t2 = convolve8_8(s2, s3, s4, s5, s6, s7, s8, s9, filters); + t3 = convolve8_8(s3, s4, s5, s6, s7, s8, s9, s10, filters); + + vst1_u8(d, t0); + d += dst_stride; + vst1_u8(d, t1); + d += dst_stride; + vst1_u8(d, t2); + d += dst_stride; + vst1_u8(d, t3); + d += dst_stride; + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + height -= 4; + } while (height != 0); + src += 8; + dst += 8; + w -= 8; + } while (w != 0); + } +} + +void vpx_convolve8_avg_vert_neon(const uint8_t *src, ptrdiff_t src_stride, + uint8_t *dst, ptrdiff_t dst_stride, + const InterpKernel *filter, int x0_q4, + int x_step_q4, int y0_q4, int y_step_q4, int w, + int h) { + const int16x8_t filters = vld1q_s16(filter[y0_q4]); + + assert(!((intptr_t)dst & 3)); + assert(!(dst_stride & 3)); + assert(y_step_q4 == 16); + + (void)x0_q4; + (void)x_step_q4; + (void)y_step_q4; + + src -= 3 * src_stride; + + if (w == 4) { + uint8x8_t d01, d23; + int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3; + uint32x4_t d0123 = vdupq_n_u32(0); + + s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + + do { + s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s9 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + s10 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src)))); + src += src_stride; + + __builtin_prefetch(dst + 0 * dst_stride); + __builtin_prefetch(dst + 1 * dst_stride); + __builtin_prefetch(dst + 2 * dst_stride); + __builtin_prefetch(dst + 3 * dst_stride); + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + d0 = convolve8_4(s0, s1, s2, s3, s4, s5, s6, s7, filters); + d1 = convolve8_4(s1, s2, s3, s4, s5, s6, s7, s8, filters); + d2 = convolve8_4(s2, s3, s4, s5, s6, s7, s8, s9, filters); + d3 = convolve8_4(s3, s4, s5, s6, s7, s8, s9, s10, filters); + + d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), 7); + d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), 7); + + d0123 = vld1q_lane_u32((uint32_t *)(dst + 0 * dst_stride), d0123, 0); + d0123 = vld1q_lane_u32((uint32_t *)(dst + 1 * dst_stride), d0123, 1); + d0123 = vld1q_lane_u32((uint32_t *)(dst + 2 * dst_stride), d0123, 2); + d0123 = vld1q_lane_u32((uint32_t *)(dst + 3 * dst_stride), d0123, 3); + d0123 = vreinterpretq_u32_u8( + vrhaddq_u8(vreinterpretq_u8_u32(d0123), vcombine_u8(d01, d23))); + + vst1q_lane_u32((uint32_t *)dst, d0123, 0); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d0123, 1); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d0123, 2); + dst += dst_stride; + vst1q_lane_u32((uint32_t *)dst, d0123, 3); + dst += dst_stride; + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + h -= 4; + } while (h != 0); + } else { + int height; + const uint8_t *s; + uint8_t *d; + uint8x8_t t0, t1, t2, t3; + uint8x16_t d01, d23, dd01, dd23; + int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + + do { + __builtin_prefetch(src + 0 * src_stride); + __builtin_prefetch(src + 1 * src_stride); + __builtin_prefetch(src + 2 * src_stride); + __builtin_prefetch(src + 3 * src_stride); + __builtin_prefetch(src + 4 * src_stride); + __builtin_prefetch(src + 5 * src_stride); + __builtin_prefetch(src + 6 * src_stride); + s = src; + s0 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s1 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s2 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s3 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s4 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s5 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s6 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + d = dst; + height = h; + + do { + s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s8 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s9 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + s10 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); + s += src_stride; + + __builtin_prefetch(d + 0 * dst_stride); + __builtin_prefetch(d + 1 * dst_stride); + __builtin_prefetch(d + 2 * dst_stride); + __builtin_prefetch(d + 3 * dst_stride); + __builtin_prefetch(s + 0 * src_stride); + __builtin_prefetch(s + 1 * src_stride); + __builtin_prefetch(s + 2 * src_stride); + __builtin_prefetch(s + 3 * src_stride); + t0 = convolve8_8(s0, s1, s2, s3, s4, s5, s6, s7, filters); + t1 = convolve8_8(s1, s2, s3, s4, s5, s6, s7, s8, filters); + t2 = convolve8_8(s2, s3, s4, s5, s6, s7, s8, s9, filters); + t3 = convolve8_8(s3, s4, s5, s6, s7, s8, s9, s10, filters); + + d01 = vcombine_u8(t0, t1); + d23 = vcombine_u8(t2, t3); + dd01 = vcombine_u8(vld1_u8(d + 0 * dst_stride), + vld1_u8(d + 1 * dst_stride)); + dd23 = vcombine_u8(vld1_u8(d + 2 * dst_stride), + vld1_u8(d + 3 * dst_stride)); + dd01 = vrhaddq_u8(dd01, d01); + dd23 = vrhaddq_u8(dd23, d23); + + vst1_u8(d, vget_low_u8(dd01)); + d += dst_stride; + vst1_u8(d, vget_high_u8(dd01)); + d += dst_stride; + vst1_u8(d, vget_low_u8(dd23)); + d += dst_stride; + vst1_u8(d, vget_high_u8(dd23)); + d += dst_stride; + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + height -= 4; + } while (height != 0); + src += 8; + dst += 8; + w -= 8; + } while (w != 0); + } +} + +#endif // #if VPX_ARCH_AARCH64 && + // (defined(__ARM_FEATURE_DOTPROD) || + // defined(__ARM_FEATURE_MATMUL_INT8)) |