| /* |
| * |
| * Copyright (c) 2018, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #include <assert.h> |
| #include <arm_neon.h> |
| |
| #include "config/av1_rtcd.h" |
| |
| #include "aom_dsp/aom_dsp_common.h" |
| #include "aom_dsp/arm/mem_neon.h" |
| #include "aom_dsp/arm/transpose_neon.h" |
| #include "aom_ports/mem.h" |
| #include "av1/common/convolve.h" |
| #include "av1/common/filter.h" |
| #include "av1/common/arm/convolve_neon.h" |
| |
| static INLINE int16x4_t convolve8_4x4(const int16x4_t s0, const int16x4_t s1, |
| const int16x4_t s2, const int16x4_t s3, |
| const int16x4_t s4, const int16x4_t s5, |
| const int16x4_t s6, const int16x4_t s7, |
| const int16x8_t filter) { |
| const int16x4_t filter_lo = vget_low_s16(filter); |
| const int16x4_t filter_hi = vget_high_s16(filter); |
| int16x4_t sum; |
| |
| sum = vmul_lane_s16(s0, filter_lo, 0); |
| sum = vmla_lane_s16(sum, s1, filter_lo, 1); |
| sum = vmla_lane_s16(sum, s2, filter_lo, 2); |
| sum = vmla_lane_s16(sum, s3, filter_lo, 3); |
| sum = vmla_lane_s16(sum, s4, filter_hi, 0); |
| sum = vmla_lane_s16(sum, s5, filter_hi, 1); |
| sum = vmla_lane_s16(sum, s6, filter_hi, 2); |
| sum = vmla_lane_s16(sum, s7, filter_hi, 3); |
| |
| return sum; |
| } |
| |
| #if !defined(__aarch64__) |
| static INLINE uint8x8_t convolve8_x_4x1(const int16x4_t s0, const int16x4_t s1, |
| const int16x4_t s2, const int16x4_t s3, |
| const int16x4_t s4, const int16x4_t s5, |
| const int16x4_t s6, const int16x4_t s7, |
| const int16x8_t filter, |
| const int16x4_t horiz_const) { |
| const int16x4_t filter_lo = vget_low_s16(filter); |
| const int16x4_t filter_hi = vget_high_s16(filter); |
| int16x4_t sum = horiz_const; |
| |
| sum = vmla_lane_s16(sum, s0, filter_lo, 0); |
| sum = vmla_lane_s16(sum, s1, filter_lo, 1); |
| sum = vmla_lane_s16(sum, s2, filter_lo, 2); |
| sum = vmla_lane_s16(sum, s3, filter_lo, 3); |
| sum = vmla_lane_s16(sum, s4, filter_hi, 0); |
| sum = vmla_lane_s16(sum, s5, filter_hi, 1); |
| sum = vmla_lane_s16(sum, s6, filter_hi, 2); |
| sum = vmla_lane_s16(sum, s7, filter_hi, 3); |
| |
| // We halved the convolution filter values so - 1 from the right shift. |
| return vqrshrun_n_s16(vcombine_s16(sum, vdup_n_s16(0)), FILTER_BITS - 1); |
| } |
| #endif // !defined(__arch64__) |
| |
| #if defined(__aarch64__) && defined(__ARM_FEATURE_MATMUL_INT8) |
| |
| static INLINE int32x4_t convolve12_4_usdot(uint8x16_t samples, |
| const int8x16_t filters, |
| const uint8x16x3_t permute_tbl, |
| const int32x4_t horiz_const) { |
| uint8x16_t permuted_samples[3]; |
| int32x4_t sum; |
| |
| /* Permute samples ready for dot product. */ |
| /* { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } */ |
| permuted_samples[0] = vqtbl1q_u8(samples, permute_tbl.val[0]); |
| /* { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } */ |
| permuted_samples[1] = vqtbl1q_u8(samples, permute_tbl.val[1]); |
| /* { 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 } */ |
| permuted_samples[2] = vqtbl1q_u8(samples, permute_tbl.val[2]); |
| |
| /* First 4 output values. */ |
| sum = vusdotq_laneq_s32(horiz_const, permuted_samples[0], filters, 0); |
| sum = vusdotq_laneq_s32(sum, permuted_samples[1], filters, 1); |
| sum = vusdotq_laneq_s32(sum, permuted_samples[2], filters, 2); |
| |
| return sum; |
| } |
| |
| static INLINE int16x8_t convolve12_8_usdot(uint8x16_t samples0, |
| uint8x16_t samples1, |
| const int8x16_t filters, |
| const uint8x16x3_t permute_tbl, |
| const int32x4_t horiz_const) { |
| uint8x16_t permuted_samples[4]; |
| int32x4_t sum[2]; |
| |
| /* Permute samples ready for dot product. */ |
| /* { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } */ |
| permuted_samples[0] = vqtbl1q_u8(samples0, permute_tbl.val[0]); |
| /* { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } */ |
| permuted_samples[1] = vqtbl1q_u8(samples0, permute_tbl.val[1]); |
| /* { 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 } */ |
| permuted_samples[2] = vqtbl1q_u8(samples0, permute_tbl.val[2]); |
| /* {12, 13, 14, 15, 13, 14, 15, 16, 14, 15, 16, 17, 15, 16, 17, 18 } */ |
| permuted_samples[3] = vqtbl1q_u8(samples1, permute_tbl.val[2]); |
| |
| /* First 4 output values. */ |
| sum[0] = vusdotq_laneq_s32(horiz_const, permuted_samples[0], filters, 0); |
| sum[0] = vusdotq_laneq_s32(sum[0], permuted_samples[1], filters, 1); |
| sum[0] = vusdotq_laneq_s32(sum[0], permuted_samples[2], filters, 2); |
| /* Second 4 output values. */ |
| sum[1] = vusdotq_laneq_s32(horiz_const, permuted_samples[1], filters, 0); |
| sum[1] = vusdotq_laneq_s32(sum[1], permuted_samples[2], filters, 1); |
| sum[1] = vusdotq_laneq_s32(sum[1], permuted_samples[3], filters, 2); |
| |
| /* Narrow and re-pack. */ |
| return vcombine_s16(vqrshrn_n_s32(sum[0], FILTER_BITS), |
| vqrshrn_n_s32(sum[1], FILTER_BITS)); |
| } |
| |
| #elif defined(__aarch64__) && defined(__ARM_FEATURE_DOTPROD) |
| |
| static INLINE int16x4_t convolve12_horiz_4_sdot( |
| uint8x16_t samples, const int8x16_t filters, const int32x4_t correction, |
| const uint8x16_t range_limit, const uint8x16x3_t permute_tbl) { |
| int8x16_t clamped_samples, permuted_samples[3]; |
| int32x4_t sum; |
| |
| /* Clamp sample range to [-128, 127] for 8-bit signed dot product. */ |
| clamped_samples = vreinterpretq_s8_u8(vsubq_u8(samples, range_limit)); |
| |
| /* Permute samples ready for dot product. */ |
| /* { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } */ |
| permuted_samples[0] = vqtbl1q_s8(clamped_samples, permute_tbl.val[0]); |
| /* { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } */ |
| permuted_samples[1] = vqtbl1q_s8(clamped_samples, permute_tbl.val[1]); |
| /* { 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 } */ |
| permuted_samples[2] = vqtbl1q_s8(clamped_samples, permute_tbl.val[2]); |
| |
| /* Accumulate dot product into 'correction' to account for range clamp. */ |
| /* First 4 output values. */ |
| sum = vdotq_laneq_s32(correction, permuted_samples[0], filters, 0); |
| sum = vdotq_laneq_s32(sum, permuted_samples[1], filters, 1); |
| sum = vdotq_laneq_s32(sum, permuted_samples[2], filters, 2); |
| |
| /* Narrow and re-pack. */ |
| return vshrn_n_s32(sum, ROUND0_BITS); |
| } |
| |
| static INLINE int16x8_t convolve12_horiz_8_sdot( |
| uint8x16_t samples0, uint8x16_t samples1, const int8x16_t filters, |
| const int32x4_t correction, const uint8x16_t range_limit, |
| const uint8x16x3_t permute_tbl) { |
| int8x16_t clamped_samples[2], permuted_samples[4]; |
| int32x4_t sum[2]; |
| |
| /* Clamp sample range to [-128, 127] for 8-bit signed dot product. */ |
| clamped_samples[0] = vreinterpretq_s8_u8(vsubq_u8(samples0, range_limit)); |
| clamped_samples[1] = vreinterpretq_s8_u8(vsubq_u8(samples1, range_limit)); |
| |
| /* Permute samples ready for dot product. */ |
| /* { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } */ |
| permuted_samples[0] = vqtbl1q_s8(clamped_samples[0], permute_tbl.val[0]); |
| /* { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } */ |
| permuted_samples[1] = vqtbl1q_s8(clamped_samples[0], permute_tbl.val[1]); |
| /* { 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 } */ |
| permuted_samples[2] = vqtbl1q_s8(clamped_samples[0], permute_tbl.val[2]); |
| /* {12, 13, 14, 15, 13, 14, 15, 16, 14, 15, 16, 17, 15, 16, 17, 18 } */ |
| permuted_samples[3] = vqtbl1q_s8(clamped_samples[1], permute_tbl.val[2]); |
| |
| /* Accumulate dot product into 'correction' to account for range clamp. */ |
| /* First 4 output values. */ |
| sum[0] = vdotq_laneq_s32(correction, permuted_samples[0], filters, 0); |
| sum[0] = vdotq_laneq_s32(sum[0], permuted_samples[1], filters, 1); |
| sum[0] = vdotq_laneq_s32(sum[0], permuted_samples[2], filters, 2); |
| /* Second 4 output values. */ |
| sum[1] = vdotq_laneq_s32(correction, permuted_samples[1], filters, 0); |
| sum[1] = vdotq_laneq_s32(sum[1], permuted_samples[2], filters, 1); |
| sum[1] = vdotq_laneq_s32(sum[1], permuted_samples[3], filters, 2); |
| |
| /* Narrow and re-pack. */ |
| return vcombine_s16(vshrn_n_s32(sum[0], ROUND0_BITS), |
| vshrn_n_s32(sum[1], ROUND0_BITS)); |
| } |
| |
| static INLINE int32x4_t convolve12_4_sdot(uint8x16_t samples, |
| const int8x16_t filters, |
| const int32x4_t correction, |
| const uint8x16_t range_limit, |
| const uint8x16x3_t permute_tbl) { |
| int8x16_t clamped_samples, permuted_samples[3]; |
| int32x4_t sum; |
| |
| /* Clamp sample range to [-128, 127] for 8-bit signed dot product. */ |
| clamped_samples = vreinterpretq_s8_u8(vsubq_u8(samples, range_limit)); |
| |
| /* Permute samples ready for dot product. */ |
| /* { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } */ |
| permuted_samples[0] = vqtbl1q_s8(clamped_samples, permute_tbl.val[0]); |
| /* { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } */ |
| permuted_samples[1] = vqtbl1q_s8(clamped_samples, permute_tbl.val[1]); |
| /* { 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 } */ |
| permuted_samples[2] = vqtbl1q_s8(clamped_samples, permute_tbl.val[2]); |
| |
| /* Accumulate dot product into 'correction' to account for range clamp. */ |
| /* First 4 output values. */ |
| sum = vdotq_laneq_s32(correction, permuted_samples[0], filters, 0); |
| sum = vdotq_laneq_s32(sum, permuted_samples[1], filters, 1); |
| sum = vdotq_laneq_s32(sum, permuted_samples[2], filters, 2); |
| |
| return sum; |
| } |
| |
| static INLINE int16x8_t convolve12_8_sdot(uint8x16_t samples0, |
| uint8x16_t samples1, |
| const int8x16_t filters, |
| const int32x4_t correction, |
| const uint8x16_t range_limit, |
| const uint8x16x3_t permute_tbl) { |
| int8x16_t clamped_samples[2], permuted_samples[4]; |
| int32x4_t sum[2]; |
| |
| /* Clamp sample range to [-128, 127] for 8-bit signed dot product. */ |
| clamped_samples[0] = vreinterpretq_s8_u8(vsubq_u8(samples0, range_limit)); |
| clamped_samples[1] = vreinterpretq_s8_u8(vsubq_u8(samples1, range_limit)); |
| |
| /* Permute samples ready for dot product. */ |
| /* { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } */ |
| permuted_samples[0] = vqtbl1q_s8(clamped_samples[0], permute_tbl.val[0]); |
| /* { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } */ |
| permuted_samples[1] = vqtbl1q_s8(clamped_samples[0], permute_tbl.val[1]); |
| /* { 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 } */ |
| permuted_samples[2] = vqtbl1q_s8(clamped_samples[0], permute_tbl.val[2]); |
| /* {12, 13, 14, 15, 13, 14, 15, 16, 14, 15, 16, 17, 15, 16, 17, 18 } */ |
| permuted_samples[3] = vqtbl1q_s8(clamped_samples[1], permute_tbl.val[2]); |
| |
| /* Accumulate dot product into 'correction' to account for range clamp. */ |
| /* First 4 output values. */ |
| sum[0] = vdotq_laneq_s32(correction, permuted_samples[0], filters, 0); |
| sum[0] = vdotq_laneq_s32(sum[0], permuted_samples[1], filters, 1); |
| sum[0] = vdotq_laneq_s32(sum[0], permuted_samples[2], filters, 2); |
| /* Second 4 output values. */ |
| sum[1] = vdotq_laneq_s32(correction, permuted_samples[1], filters, 0); |
| sum[1] = vdotq_laneq_s32(sum[1], permuted_samples[2], filters, 1); |
| sum[1] = vdotq_laneq_s32(sum[1], permuted_samples[3], filters, 2); |
| |
| /* Narrow and re-pack. */ |
| return vcombine_s16(vqrshrn_n_s32(sum[0], FILTER_BITS), |
| vqrshrn_n_s32(sum[1], FILTER_BITS)); |
| } |
| |
| #endif // defined(__aarch64__) && defined(__ARM_FEATURE_MATMUL_INT8) |
| |
| static INLINE uint8x8_t convolve8_vert_8x4( |
| const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, |
| const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, |
| const int16x8_t s6, const int16x8_t s7, const int16x8_t filter) { |
| const int16x4_t filter_lo = vget_low_s16(filter); |
| const int16x4_t filter_hi = vget_high_s16(filter); |
| int16x8_t sum; |
| |
| sum = vmulq_lane_s16(s0, filter_lo, 0); |
| sum = vmlaq_lane_s16(sum, s1, filter_lo, 1); |
| sum = vmlaq_lane_s16(sum, s2, filter_lo, 2); |
| sum = vmlaq_lane_s16(sum, s3, filter_lo, 3); |
| sum = vmlaq_lane_s16(sum, s4, filter_hi, 0); |
| sum = vmlaq_lane_s16(sum, s5, filter_hi, 1); |
| sum = vmlaq_lane_s16(sum, s6, filter_hi, 2); |
| sum = vmlaq_lane_s16(sum, s7, filter_hi, 3); |
| |
| return vqrshrun_n_s16(sum, FILTER_BITS - 1); |
| } |
| |
| static INLINE int16x4_t convolve8_vert_4_s32( |
| const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, |
| const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, |
| const int16x4_t s6, const int16x4_t s7, const int16x8_t y_filter) { |
| const int16x4_t y_filter_lo = vget_low_s16(y_filter); |
| const int16x4_t y_filter_hi = vget_high_s16(y_filter); |
| int32x4_t sum; |
| |
| sum = vmull_lane_s16(s0, y_filter_lo, 0); |
| sum = vmlal_lane_s16(sum, s1, y_filter_lo, 1); |
| sum = vmlal_lane_s16(sum, s2, y_filter_lo, 2); |
| sum = vmlal_lane_s16(sum, s3, y_filter_lo, 3); |
| sum = vmlal_lane_s16(sum, s4, y_filter_hi, 0); |
| sum = vmlal_lane_s16(sum, s5, y_filter_hi, 1); |
| sum = vmlal_lane_s16(sum, s6, y_filter_hi, 2); |
| sum = vmlal_lane_s16(sum, s7, y_filter_hi, 3); |
| |
| return vqrshrn_n_s32(sum, 2 * FILTER_BITS - ROUND0_BITS); |
| } |
| |
| static INLINE uint8x8_t |
| convolve8_vert_8_s32(const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, |
| const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, |
| const int16x8_t s6, const int16x8_t s7, |
| const int16x8_t y_filter, const int16x8_t sub_const) { |
| const int16x4_t y_filter_lo = vget_low_s16(y_filter); |
| const int16x4_t y_filter_hi = vget_high_s16(y_filter); |
| int32x4_t sum0, sum1; |
| int16x8_t res; |
| |
| sum0 = vmull_lane_s16(vget_low_s16(s0), y_filter_lo, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_lo, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_lo, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_lo, 3); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_hi, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_hi, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), y_filter_hi, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), y_filter_hi, 3); |
| |
| sum1 = vmull_lane_s16(vget_high_s16(s0), y_filter_lo, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_lo, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_lo, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_lo, 3); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_hi, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_hi, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), y_filter_hi, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), y_filter_hi, 3); |
| |
| res = vcombine_s16(vqrshrn_n_s32(sum0, 2 * FILTER_BITS - ROUND0_BITS), |
| vqrshrn_n_s32(sum1, 2 * FILTER_BITS - ROUND0_BITS)); |
| res = vsubq_s16(res, sub_const); |
| |
| return vqmovun_s16(res); |
| } |
| |
| #if defined(__aarch64__) && defined(__ARM_FEATURE_MATMUL_INT8) |
| |
| void convolve_x_sr_12tap_neon(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const int16_t *x_filter_ptr) { |
| const int16x8_t filter_0_7 = vld1q_s16(x_filter_ptr); |
| const int16x4_t filter_8_11 = vld1_s16(x_filter_ptr + 8); |
| const int16x8_t filter_8_15 = vcombine_s16(filter_8_11, vdup_n_s16(0)); |
| const int8x16_t filter = |
| vcombine_s8(vmovn_s16(filter_0_7), vmovn_s16(filter_8_15)); |
| |
| // Special case the following no-op filter as 128 won't fit into the |
| // 8-bit signed dot-product instruction: |
| // { 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 } |
| if (vgetq_lane_s16(filter_0_7, 5) == 128) { |
| uint8x8_t d0; |
| |
| // Undo the horizontal offset in the calling function. |
| src += 5; |
| |
| for (int i = 0; i < h; i++) { |
| for (int j = 0; j < w; j += 8) { |
| d0 = vld1_u8(src + i * src_stride + j); |
| if (w == 2) { |
| store_u8_2x1(dst + i * dst_stride, d0, 0); |
| } else if (w == 4) { |
| store_u8_4x1(dst + i * dst_stride, d0, 0); |
| } else { |
| vst1_u8(dst + i * dst_stride + j, d0); |
| } |
| } |
| } |
| } else { |
| const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); |
| // This shim of 1 << (ROUND0_BITS - 1) enables us to use a single rounding |
| // right shift by FILTER_BITS - instead of a first rounding right shift by |
| // ROUND0_BITS, followed by second rounding right shift by FILTER_BITS - |
| // ROUND0_BITS. |
| const int32x4_t horiz_const = vdupq_n_s32(1 << (ROUND0_BITS - 1)); |
| |
| if (w <= 4) { |
| uint8x16_t s0, s1, s2, s3; |
| int32x4_t d0, d1, d2, d3; |
| int16x8_t t01, t23; |
| uint8x8_t d01, d23; |
| |
| do { |
| load_u8_16x4(src, src_stride, &s0, &s1, &s2, &s3); |
| |
| d0 = convolve12_4_usdot(s0, filter, permute_tbl, horiz_const); |
| d1 = convolve12_4_usdot(s1, filter, permute_tbl, horiz_const); |
| d2 = convolve12_4_usdot(s2, filter, permute_tbl, horiz_const); |
| d3 = convolve12_4_usdot(s3, filter, permute_tbl, horiz_const); |
| |
| t01 = vcombine_s16(vqrshrn_n_s32(d0, FILTER_BITS), |
| vqrshrn_n_s32(d1, FILTER_BITS)); |
| t23 = vcombine_s16(vqrshrn_n_s32(d2, FILTER_BITS), |
| vqrshrn_n_s32(d3, FILTER_BITS)); |
| |
| d01 = vqmovun_s16(t01); |
| d23 = vqmovun_s16(t23); |
| |
| if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_2x1(dst + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_2x1(dst + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_4x1(dst + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_4x1(dst + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| dst += 4 * dst_stride; |
| src += 4 * src_stride; |
| h -= 4; |
| } while (h > 0); |
| } else { |
| uint8x16_t s0, s1, s2, s3, s4, s5, s6, s7; |
| int16x8_t d0, d1, d2, d3; |
| uint8x8_t dd0, dd1, dd2, dd3; |
| |
| do { |
| const uint8_t *s = src; |
| uint8_t *d = dst; |
| int width = w; |
| |
| do { |
| load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); |
| load_u8_16x4(s + 4, src_stride, &s4, &s5, &s6, &s7); |
| |
| d0 = convolve12_8_usdot(s0, s4, filter, permute_tbl, horiz_const); |
| d1 = convolve12_8_usdot(s1, s5, filter, permute_tbl, horiz_const); |
| d2 = convolve12_8_usdot(s2, s6, filter, permute_tbl, horiz_const); |
| d3 = convolve12_8_usdot(s3, s7, filter, permute_tbl, horiz_const); |
| |
| dd0 = vqmovun_s16(d0); |
| dd1 = vqmovun_s16(d1); |
| dd2 = vqmovun_s16(d2); |
| dd3 = vqmovun_s16(d3); |
| |
| store_u8_8x2(d + 0 * dst_stride, dst_stride, dd0, dd1); |
| if (h != 2) { |
| store_u8_8x2(d + 2 * dst_stride, dst_stride, dd2, dd3); |
| } |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| src += 4 * src_stride; |
| dst += 4 * dst_stride; |
| h -= 4; |
| } while (h > 0); |
| } |
| } |
| } |
| |
| void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const int subpel_x_qn, |
| ConvolveParams *conv_params) { |
| (void)conv_params; |
| const uint8_t horiz_offset = filter_params_x->taps / 2 - 1; |
| |
| const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| src -= horiz_offset; |
| |
| if (filter_params_x->taps > 8) { |
| convolve_x_sr_12tap_neon(src, src_stride, dst, dst_stride, w, h, |
| x_filter_ptr); |
| return; |
| } |
| |
| // Filter values are even, so downshift by 1 to reduce intermediate precision |
| // requirements. |
| const int8x8_t x_filter = vshrn_n_s16(vld1q_s16(x_filter_ptr), 1); |
| // This shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use a single |
| // rounding right shift by FILTER_BITS - instead of a first rounding right |
| // shift by ROUND0_BITS, followed by second rounding right shift by |
| // FILTER_BITS - ROUND0_BITS. |
| // The outermost -1 is needed because we halved the filter values. |
| const int32x4_t horiz_const = vdupq_n_s32(1 << ((ROUND0_BITS - 1) - 1)); |
| |
| if (w <= 4) { |
| const uint8x16x2_t permute_tbl = vld1q_u8_x2(dot_prod_permute_tbl); |
| uint8x16_t s0, s1, s2, s3; |
| int32x4_t t0, t1, t2, t3; |
| int16x8_t t01, t23; |
| uint8x8_t d01, d23; |
| |
| do { |
| load_u8_16x4(src, src_stride, &s0, &s1, &s2, &s3); |
| |
| t0 = convolve8_4_usdot(s0, x_filter, permute_tbl, horiz_const); |
| t1 = convolve8_4_usdot(s1, x_filter, permute_tbl, horiz_const); |
| t2 = convolve8_4_usdot(s2, x_filter, permute_tbl, horiz_const); |
| t3 = convolve8_4_usdot(s3, x_filter, permute_tbl, horiz_const); |
| |
| t01 = vcombine_s16(vmovn_s32(t0), vmovn_s32(t1)); |
| t23 = vcombine_s16(vmovn_s32(t2), vmovn_s32(t3)); |
| |
| // We halved the convolution filter values so - 1 from the right shift. |
| d01 = vqrshrun_n_s16(t01, FILTER_BITS - 1); |
| d23 = vqrshrun_n_s16(t23, FILTER_BITS - 1); |
| |
| if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_2x1(dst + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_2x1(dst + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_4x1(dst + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_4x1(dst + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| h -= 4; |
| src += 4 * src_stride; |
| dst += 4 * dst_stride; |
| } while (h > 0); |
| |
| } else { |
| const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); |
| uint8x16_t s0, s1, s2, s3; |
| int16x8_t t0, t1, t2, t3; |
| uint8x8_t d0, d1, d2, d3; |
| |
| do { |
| int width = w; |
| const uint8_t *s = src; |
| uint8_t *d = dst; |
| |
| do { |
| load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); |
| |
| t0 = convolve8_x_8_usdot(s0, x_filter, permute_tbl, horiz_const); |
| t1 = convolve8_x_8_usdot(s1, x_filter, permute_tbl, horiz_const); |
| t2 = convolve8_x_8_usdot(s2, x_filter, permute_tbl, horiz_const); |
| t3 = convolve8_x_8_usdot(s3, x_filter, permute_tbl, horiz_const); |
| |
| // We halved the convolution filter values so - 1 from the right shift. |
| d0 = vqrshrun_n_s16(t0, FILTER_BITS - 1); |
| d1 = vqrshrun_n_s16(t1, FILTER_BITS - 1); |
| d2 = vqrshrun_n_s16(t2, FILTER_BITS - 1); |
| d3 = vqrshrun_n_s16(t3, FILTER_BITS - 1); |
| |
| vst1_u8(d + 0 * dst_stride, d0); |
| vst1_u8(d + 1 * dst_stride, d1); |
| if (h != 2) { |
| vst1_u8(d + 2 * dst_stride, d2); |
| vst1_u8(d + 3 * dst_stride, d3); |
| } |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src += 4 * src_stride; |
| dst += 4 * dst_stride; |
| h -= 4; |
| } while (h > 0); |
| } |
| } |
| |
| #elif defined(__aarch64__) && defined(__ARM_FEATURE_DOTPROD) |
| |
| void convolve_x_sr_12tap_neon(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const int16_t *x_filter_ptr) { |
| const int16x8_t filter_0_7 = vld1q_s16(x_filter_ptr); |
| const int16x4_t filter_8_11 = vld1_s16(x_filter_ptr + 8); |
| const int16x8_t filter_8_15 = vcombine_s16(filter_8_11, vdup_n_s16(0)); |
| const int8x16_t filter = |
| vcombine_s8(vmovn_s16(filter_0_7), vmovn_s16(filter_8_15)); |
| |
| const int32x4_t correct_tmp = |
| vaddq_s32(vpaddlq_s16(vshlq_n_s16(filter_0_7, 7)), |
| vpaddlq_s16(vshlq_n_s16(filter_8_15, 7))); |
| // This shim of 1 << (ROUND0_BITS - 1) enables us to use a single rounding |
| // right shift by FILTER_BITS - instead of a first rounding right shift by |
| // ROUND0_BITS, followed by second rounding right shift by FILTER_BITS - |
| // ROUND0_BITS. |
| int32x4_t correction = |
| vdupq_n_s32(vaddvq_s32(correct_tmp) + (1 << (ROUND0_BITS - 1))); |
| const uint8x16_t range_limit = vdupq_n_u8(128); |
| const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); |
| |
| // Special case the following no-op filter as 128 won't fit into the |
| // 8-bit signed dot-product instruction: |
| // { 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 } |
| if (vgetq_lane_s16(filter_0_7, 5) == 128) { |
| uint8x8_t d0; |
| |
| // Undo the horizontal offset in the calling function. |
| src += 5; |
| |
| for (int i = 0; i < h; i++) { |
| for (int j = 0; j < w; j += 8) { |
| d0 = vld1_u8(src + i * src_stride + j); |
| if (w == 2) { |
| store_u8_2x1(dst + i * dst_stride, d0, 0); |
| } else if (w == 4) { |
| store_u8_4x1(dst + i * dst_stride, d0, 0); |
| } else { |
| vst1_u8(dst + i * dst_stride + j, d0); |
| } |
| } |
| } |
| } else { |
| if (w <= 4) { |
| uint8x16_t s0, s1, s2, s3; |
| int32x4_t d0, d1, d2, d3; |
| int16x8_t t01, t23; |
| uint8x8_t d01, d23; |
| |
| do { |
| load_u8_16x4(src, src_stride, &s0, &s1, &s2, &s3); |
| |
| d0 = |
| convolve12_4_sdot(s0, filter, correction, range_limit, permute_tbl); |
| d1 = |
| convolve12_4_sdot(s1, filter, correction, range_limit, permute_tbl); |
| d2 = |
| convolve12_4_sdot(s2, filter, correction, range_limit, permute_tbl); |
| d3 = |
| convolve12_4_sdot(s3, filter, correction, range_limit, permute_tbl); |
| |
| t01 = vcombine_s16(vqrshrn_n_s32(d0, FILTER_BITS), |
| vqrshrn_n_s32(d1, FILTER_BITS)); |
| t23 = vcombine_s16(vqrshrn_n_s32(d2, FILTER_BITS), |
| vqrshrn_n_s32(d3, FILTER_BITS)); |
| |
| d01 = vqmovun_s16(t01); |
| d23 = vqmovun_s16(t23); |
| |
| if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_2x1(dst + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_2x1(dst + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_4x1(dst + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_4x1(dst + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| dst += 4 * dst_stride; |
| src += 4 * src_stride; |
| h -= 4; |
| } while (h > 0); |
| } else { |
| uint8x16_t s0, s1, s2, s3, s4, s5, s6, s7; |
| int16x8_t d0, d1, d2, d3; |
| uint8x8_t dd0, dd1, dd2, dd3; |
| |
| do { |
| const uint8_t *s = src; |
| uint8_t *d = dst; |
| int width = w; |
| |
| do { |
| load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); |
| load_u8_16x4(s + 4, src_stride, &s4, &s5, &s6, &s7); |
| |
| d0 = convolve12_8_sdot(s0, s4, filter, correction, range_limit, |
| permute_tbl); |
| d1 = convolve12_8_sdot(s1, s5, filter, correction, range_limit, |
| permute_tbl); |
| d2 = convolve12_8_sdot(s2, s6, filter, correction, range_limit, |
| permute_tbl); |
| d3 = convolve12_8_sdot(s3, s7, filter, correction, range_limit, |
| permute_tbl); |
| |
| dd0 = vqmovun_s16(d0); |
| dd1 = vqmovun_s16(d1); |
| dd2 = vqmovun_s16(d2); |
| dd3 = vqmovun_s16(d3); |
| |
| store_u8_8x2(d + 0 * dst_stride, dst_stride, dd0, dd1); |
| if (h != 2) { |
| store_u8_8x2(d + 2 * dst_stride, dst_stride, dd2, dd3); |
| } |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| src += 4 * src_stride; |
| dst += 4 * dst_stride; |
| h -= 4; |
| } while (h > 0); |
| } |
| } |
| } |
| |
| void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const int subpel_x_qn, |
| ConvolveParams *conv_params) { |
| (void)conv_params; |
| const uint8_t horiz_offset = filter_params_x->taps / 2 - 1; |
| |
| const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| src -= horiz_offset; |
| |
| if (filter_params_x->taps > 8) { |
| convolve_x_sr_12tap_neon(src, src_stride, dst, dst_stride, w, h, |
| x_filter_ptr); |
| return; |
| } |
| |
| // Filter values are even, so downshift by 1 to reduce intermediate precision |
| // requirements. |
| const int8x8_t x_filter = vshrn_n_s16(vld1q_s16(x_filter_ptr), 1); |
| // Dot product constants. |
| const int16x8_t correct_tmp = vshll_n_s8(x_filter, 7); |
| // This shim of (1 << ((ROUND0_BITS - 1) - 1) enables us to use a single |
| // rounding right shift by FILTER_BITS - instead of a first rounding right |
| // shift by ROUND0_BITS, followed by second rounding right shift by |
| // FILTER_BITS - ROUND0_BITS. |
| // The outermost -1 is needed because we halved the filter values. |
| const int32x4_t correction = |
| vdupq_n_s32(vaddlvq_s16(correct_tmp) + (1 << ((ROUND0_BITS - 1) - 1))); |
| const uint8x16_t range_limit = vdupq_n_u8(128); |
| |
| if (w <= 4) { |
| const uint8x16x2_t permute_tbl = vld1q_u8_x2(dot_prod_permute_tbl); |
| uint8x16_t s0, s1, s2, s3; |
| int32x4_t t0, t1, t2, t3; |
| int16x8_t t01, t23; |
| uint8x8_t d01, d23; |
| |
| do { |
| load_u8_16x4(src, src_stride, &s0, &s1, &s2, &s3); |
| |
| t0 = convolve8_4_sdot(s0, x_filter, correction, range_limit, permute_tbl); |
| t1 = convolve8_4_sdot(s1, x_filter, correction, range_limit, permute_tbl); |
| t2 = convolve8_4_sdot(s2, x_filter, correction, range_limit, permute_tbl); |
| t3 = convolve8_4_sdot(s3, x_filter, correction, range_limit, permute_tbl); |
| |
| t01 = vcombine_s16(vmovn_s32(t0), vmovn_s32(t1)); |
| t23 = vcombine_s16(vmovn_s32(t2), vmovn_s32(t3)); |
| |
| // We halved the convolution filter values so - 1 from the right shift. |
| d01 = vqrshrun_n_s16(t01, FILTER_BITS - 1); |
| d23 = vqrshrun_n_s16(t23, FILTER_BITS - 1); |
| |
| if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_2x1(dst + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_2x1(dst + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_4x1(dst + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_4x1(dst + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| h -= 4; |
| src += 4 * src_stride; |
| dst += 4 * dst_stride; |
| } while (h > 0); |
| } else { |
| const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); |
| uint8x16_t s0, s1, s2, s3; |
| int16x8_t t0, t1, t2, t3; |
| uint8x8_t d0, d1, d2, d3; |
| |
| do { |
| int width = w; |
| const uint8_t *s = src; |
| uint8_t *d = dst; |
| |
| do { |
| load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); |
| |
| t0 = convolve8_x_8_sdot(s0, x_filter, correction, range_limit, |
| permute_tbl); |
| t1 = convolve8_x_8_sdot(s1, x_filter, correction, range_limit, |
| permute_tbl); |
| t2 = convolve8_x_8_sdot(s2, x_filter, correction, range_limit, |
| permute_tbl); |
| t3 = convolve8_x_8_sdot(s3, x_filter, correction, range_limit, |
| permute_tbl); |
| |
| // We halved the convolution filter values so - 1 from the right shift. |
| d0 = vqrshrun_n_s16(t0, FILTER_BITS - 1); |
| d1 = vqrshrun_n_s16(t1, FILTER_BITS - 1); |
| d2 = vqrshrun_n_s16(t2, FILTER_BITS - 1); |
| d3 = vqrshrun_n_s16(t3, FILTER_BITS - 1); |
| |
| vst1_u8(d + 0 * dst_stride, d0); |
| vst1_u8(d + 1 * dst_stride, d1); |
| if (h != 2) { |
| vst1_u8(d + 2 * dst_stride, d2); |
| vst1_u8(d + 3 * dst_stride, d3); |
| } |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src += 4 * src_stride; |
| dst += 4 * dst_stride; |
| h -= 4; |
| } while (h > 0); |
| } |
| } |
| |
| #else // !(defined(__aarch64__) && defined(__ARM_FEATURE_DOTPROD)) |
| |
| static INLINE uint8x8_t |
| convolve8_horiz_8x8(const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, |
| const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, |
| const int16x8_t s6, const int16x8_t s7, |
| const int16x8_t filter, const int16x8_t horiz_const) { |
| const int16x4_t filter_lo = vget_low_s16(filter); |
| const int16x4_t filter_hi = vget_high_s16(filter); |
| int16x8_t sum = horiz_const; |
| |
| sum = vmlaq_lane_s16(sum, s0, filter_lo, 0); |
| sum = vmlaq_lane_s16(sum, s1, filter_lo, 1); |
| sum = vmlaq_lane_s16(sum, s2, filter_lo, 2); |
| sum = vmlaq_lane_s16(sum, s3, filter_lo, 3); |
| sum = vmlaq_lane_s16(sum, s4, filter_hi, 0); |
| sum = vmlaq_lane_s16(sum, s5, filter_hi, 1); |
| sum = vmlaq_lane_s16(sum, s6, filter_hi, 2); |
| sum = vmlaq_lane_s16(sum, s7, filter_hi, 3); |
| |
| // We halved the convolution filter values so - 1 from the right shift. |
| return vqrshrun_n_s16(sum, FILTER_BITS - 1); |
| } |
| |
| static INLINE int16x4_t convolve12_x_4x4_s16( |
| const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, |
| const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, |
| const int16x4_t s6, const int16x4_t s7, const int16x4_t s8, |
| const int16x4_t s9, const int16x4_t s10, const int16x4_t s11, |
| const int16x8_t x_filter_0_7, const int16x4_t x_filter_8_11, |
| const int32x4_t horiz_const) { |
| const int16x4_t x_filter_0_3 = vget_low_s16(x_filter_0_7); |
| const int16x4_t x_filter_4_7 = vget_high_s16(x_filter_0_7); |
| int32x4_t sum = horiz_const; |
| |
| sum = vmlal_lane_s16(sum, s0, x_filter_0_3, 0); |
| sum = vmlal_lane_s16(sum, s1, x_filter_0_3, 1); |
| sum = vmlal_lane_s16(sum, s2, x_filter_0_3, 2); |
| sum = vmlal_lane_s16(sum, s3, x_filter_0_3, 3); |
| sum = vmlal_lane_s16(sum, s4, x_filter_4_7, 0); |
| sum = vmlal_lane_s16(sum, s5, x_filter_4_7, 1); |
| sum = vmlal_lane_s16(sum, s6, x_filter_4_7, 2); |
| sum = vmlal_lane_s16(sum, s7, x_filter_4_7, 3); |
| sum = vmlal_lane_s16(sum, s8, x_filter_8_11, 0); |
| sum = vmlal_lane_s16(sum, s9, x_filter_8_11, 1); |
| sum = vmlal_lane_s16(sum, s10, x_filter_8_11, 2); |
| sum = vmlal_lane_s16(sum, s11, x_filter_8_11, 3); |
| |
| return vqrshrn_n_s32(sum, FILTER_BITS); |
| } |
| |
| // 4 column per iteration filtering for 12-tap convolve_x_sr. |
| // Processes one row at a time. |
| static INLINE void x_filter_12tap_w4_single_row( |
| const uint8_t *src_ptr, int src_stride, uint8_t *dst_ptr, |
| const int dst_stride, int w, int h, const int16x8_t x_filter_0_7, |
| const int16x4_t x_filter_8_11) { |
| // This shim of 1 << (ROUND0_BITS - 1) enables us to use a single |
| // rounding right shift by FILTER_BITS - instead of a first rounding right |
| // shift by ROUND0_BITS, followed by second rounding right shift by |
| // FILTER_BITS - ROUND0_BITS. |
| const int32x4_t horiz_const = vdupq_n_s32(1 << (ROUND0_BITS - 1)); |
| |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x8_t dd0; |
| uint8x16_t t0; |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, d0; |
| int16x8_t tt0, tt1; |
| |
| t0 = vld1q_u8(s); |
| tt0 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(t0))); |
| tt1 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(t0))); |
| |
| s0 = vget_low_s16(tt0); |
| s4 = vget_high_s16(tt0); |
| s8 = vget_low_s16(tt1); |
| s12 = vget_high_s16(tt1); |
| |
| s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4 |
| s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5 |
| s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6 |
| s5 = vext_s16(s4, s8, 1); // a5 a6 a7 a8 |
| s6 = vext_s16(s4, s8, 2); // a6 a7 a8 a9 |
| s7 = vext_s16(s4, s8, 3); // a7 a8 a9 a10 |
| s9 = vext_s16(s8, s12, 1); // a9 a10 a11 a12 |
| s10 = vext_s16(s8, s12, 2); // a10 a11 a12 a13 |
| s11 = vext_s16(s8, s12, 3); // a11 a12 a13 a14 |
| |
| d0 = convolve12_x_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, x_filter_0_7, x_filter_8_11, horiz_const); |
| |
| dd0 = vqmovun_s16(vcombine_s16(d0, vdup_n_s16(0))); |
| |
| if (w == 2) { |
| store_u8_2x1(d, dd0, 0); |
| } else { |
| store_u8_4x1(d, dd0, 0); |
| } |
| |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width > 0); |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } while (--h != 0); |
| } |
| |
| static INLINE void convolve_x_sr_12tap_neon(const uint8_t *src_ptr, |
| int src_stride, uint8_t *dst_ptr, |
| const int dst_stride, int w, int h, |
| const int16_t *x_filter_ptr) { |
| const int16x8_t x_filter_0_7 = vld1q_s16(x_filter_ptr); |
| const int16x4_t x_filter_8_11 = vld1_s16(x_filter_ptr + 8); |
| |
| #if defined(__aarch64__) |
| // This shim of 1 << (ROUND0_BITS - 1) enables us to use a single |
| // rounding right shift by FILTER_BITS - instead of a first rounding right |
| // shift by ROUND0_BITS, followed by second rounding right shift by |
| // FILTER_BITS - ROUND0_BITS. |
| const int32x4_t horiz_const = vdupq_n_s32(1 << (ROUND0_BITS - 1)); |
| |
| do { |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; |
| uint8x8_t t0, t1, t2, t3; |
| |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int width = w; |
| |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s7 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| load_u8_8x4(s + 8, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| |
| s += 11; |
| |
| do { |
| int16x4_t s11, s12, s13, s14, d0, d1, d2, d3; |
| int16x8_t d01, d23; |
| uint8x8_t dd01, dd23; |
| |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s11 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s12 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s13 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s14 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| d0 = convolve12_x_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, x_filter_0_7, x_filter_8_11, horiz_const); |
| d1 = convolve12_x_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| s12, x_filter_0_7, x_filter_8_11, horiz_const); |
| d2 = convolve12_x_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, x_filter_0_7, x_filter_8_11, horiz_const); |
| d3 = convolve12_x_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, |
| s14, x_filter_0_7, x_filter_8_11, horiz_const); |
| |
| transpose_s16_4x4d(&d0, &d1, &d2, &d3); |
| |
| d01 = vcombine_s16(d0, d1); |
| d23 = vcombine_s16(d2, d3); |
| |
| dd01 = vqmovun_s16(d01); |
| dd23 = vqmovun_s16(d23); |
| |
| if (w == 2) { |
| store_u8_2x1(d + 0 * dst_stride, dd01, 0); |
| store_u8_2x1(d + 1 * dst_stride, dd01, 2); |
| if (h != 2) { |
| store_u8_2x1(d + 2 * dst_stride, dd23, 0); |
| store_u8_2x1(d + 3 * dst_stride, dd23, 2); |
| } |
| } else { |
| store_u8_4x1(d + 0 * dst_stride, dd01, 0); |
| store_u8_4x1(d + 1 * dst_stride, dd01, 1); |
| if (h != 2) { |
| store_u8_4x1(d + 2 * dst_stride, dd23, 0); |
| store_u8_4x1(d + 3 * dst_stride, dd23, 1); |
| } |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| s7 = s11; |
| s8 = s12; |
| s9 = s13; |
| s10 = s14; |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width > 0); |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| } while (h >= 4); |
| |
| if (h > 0) { |
| x_filter_12tap_w4_single_row(src_ptr, src_stride, dst_ptr, dst_stride, w, h, |
| x_filter_0_7, x_filter_8_11); |
| } |
| #else // !defined(__aarch64__) |
| x_filter_12tap_w4_single_row(src_ptr, src_stride, dst_ptr, dst_stride, w, h, |
| x_filter_0_7, x_filter_8_11); |
| #endif // defined(__aarch64__) |
| } |
| |
| void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const int subpel_x_qn, |
| ConvolveParams *conv_params) { |
| (void)conv_params; |
| const uint8_t horiz_offset = filter_params_x->taps / 2 - 1; |
| |
| const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| src -= horiz_offset; |
| |
| if (filter_params_x->taps > 8) { |
| convolve_x_sr_12tap_neon(src, src_stride, dst, dst_stride, w, h, |
| x_filter_ptr); |
| return; |
| } |
| |
| uint8x8_t t0; |
| #if defined(__aarch64__) |
| uint8x8_t t1, t2, t3; |
| // This shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use a single |
| // rounding right shift by FILTER_BITS - instead of a first rounding right |
| // shift by ROUND0_BITS, followed by second rounding right shift by |
| // FILTER_BITS - ROUND0_BITS. |
| // The outermost -1 is needed because we halved the filter values. |
| const int16x8_t horiz_const = vdupq_n_s16(1 << ((ROUND0_BITS - 1) - 1)); |
| #endif |
| // Filter values are even so downshift by 1 to reduce precision requirements. |
| const int16x8_t x_filter = vshrq_n_s16(vld1q_s16(x_filter_ptr), 1); |
| |
| #if defined(__aarch64__) |
| 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 d01_temp, d23_temp; |
| |
| __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); |
| |
| s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| __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); |
| |
| s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| d0 = convolve8_4x4(s0, s1, s2, s3, s4, s5, s6, s7, x_filter); |
| d1 = convolve8_4x4(s1, s2, s3, s4, s5, s6, s7, s8, x_filter); |
| d2 = convolve8_4x4(s2, s3, s4, s5, s6, s7, s8, s9, x_filter); |
| d3 = convolve8_4x4(s3, s4, s5, s6, s7, s8, s9, s10, x_filter); |
| |
| d01_temp = vcombine_s16(d0, d1); |
| d23_temp = vcombine_s16(d2, d3); |
| |
| d01_temp = vaddq_s16(d01_temp, horiz_const); |
| d23_temp = vaddq_s16(d23_temp, horiz_const); |
| |
| // We halved the convolution filter values so - 1 from the right shift. |
| d01 = vqrshrun_n_s16(d01_temp, FILTER_BITS - 1); |
| d23 = vqrshrun_n_s16(d23_temp, FILTER_BITS - 1); |
| |
| transpose_u8_4x4(&d01, &d23); |
| |
| if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_2x1(dst + 1 * dst_stride, d23, 0); |
| store_u8_2x1(dst + 2 * dst_stride, d01, 2); |
| store_u8_2x1(dst + 3 * dst_stride, d23, 2); |
| } else { |
| store_u8_4x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_4x1(dst + 1 * dst_stride, d23, 0); |
| store_u8_4x1(dst + 2 * dst_stride, d01, 1); |
| store_u8_4x1(dst + 3 * dst_stride, 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 { |
| #endif |
| int width; |
| const uint8_t *s; |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; |
| |
| #if defined(__aarch64__) |
| int16x8_t s8, s9, s10; |
| uint8x8_t t4, t5, t6, t7; |
| #endif |
| |
| if (w <= 4) { |
| #if defined(__aarch64__) |
| 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_horiz_8x8(s0, s1, s2, s3, s4, s5, s6, s7, x_filter, |
| horiz_const); |
| t1 = convolve8_horiz_8x8(s1, s2, s3, s4, s5, s6, s7, s8, x_filter, |
| horiz_const); |
| t2 = convolve8_horiz_8x8(s2, s3, s4, s5, s6, s7, s8, s9, x_filter, |
| horiz_const); |
| t3 = convolve8_horiz_8x8(s3, s4, s5, s6, s7, s8, s9, s10, x_filter, |
| horiz_const); |
| |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| if (w == 4) { |
| store_u8_4x1(dst + 0 * dst_stride, t0, 0); |
| store_u8_4x1(dst + 1 * dst_stride, t1, 0); |
| if (h > 4) { |
| store_u8_4x1(dst + 2 * dst_stride, t2, 0); |
| store_u8_4x1(dst + 3 * dst_stride, t3, 0); |
| store_u8_4x1(dst + 4 * dst_stride, t0, 1); |
| store_u8_4x1(dst + 5 * dst_stride, t1, 1); |
| store_u8_4x1(dst + 6 * dst_stride, t2, 1); |
| store_u8_4x1(dst + 7 * dst_stride, t3, 1); |
| } |
| } else if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, t0, 0); |
| store_u8_2x1(dst + 1 * dst_stride, t1, 0); |
| if (h > 4) { |
| store_u8_2x1(dst + 2 * dst_stride, t2, 0); |
| store_u8_2x1(dst + 3 * dst_stride, t3, 0); |
| store_u8_2x1(dst + 4 * dst_stride, t0, 2); |
| store_u8_2x1(dst + 5 * dst_stride, t1, 2); |
| store_u8_2x1(dst + 6 * dst_stride, t2, 2); |
| store_u8_2x1(dst + 7 * dst_stride, t3, 2); |
| } |
| } |
| |
| dst += 8 * dst_stride; |
| h -= 8; |
| } while (h > 0); |
| #else |
| // This shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use a single |
| // rounding right shift by FILTER_BITS - instead of a first rounding right |
| // shift by ROUND0_BITS, followed by second rounding right shift by |
| // FILTER_BITS - ROUND0_BITS. |
| // The outermost -1 is needed because we halved the filter values. |
| const int16x4_t horiz_const = vdup_n_s16(1 << ((ROUND0_BITS - 1) - 1)); |
| int16x8_t tt0; |
| int16x4_t x0, x1, x2, x3, x4, x5, x6, x7; |
| |
| do { |
| t0 = vld1_u8(src); // a0 a1 a2 a3 a4 a5 a6 a7 |
| tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| x0 = vget_low_s16(tt0); // a0 a1 a2 a3 |
| x4 = vget_high_s16(tt0); // a4 a5 a6 a7 |
| |
| t0 = vld1_u8(src + 8); // a8 a9 a10 a11 a12 a13 a14 a15 |
| tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| x7 = vget_low_s16(tt0); // a8 a9 a10 a11 |
| |
| x1 = vext_s16(x0, x4, 1); // a1 a2 a3 a4 |
| x2 = vext_s16(x0, x4, 2); // a2 a3 a4 a5 |
| x3 = vext_s16(x0, x4, 3); // a3 a4 a5 a6 |
| x5 = vext_s16(x4, x7, 1); // a5 a6 a7 a8 |
| x6 = vext_s16(x4, x7, 2); // a6 a7 a8 a9 |
| x7 = vext_s16(x4, x7, 3); // a7 a8 a9 a10 |
| |
| src += src_stride; |
| |
| t0 = convolve8_x_4x1(x0, x1, x2, x3, x4, x5, x6, x7, x_filter, |
| horiz_const); |
| |
| if (w == 4) { |
| store_u8_4x1(dst, t0, 0); |
| dst += dst_stride; |
| } else if (w == 2) { |
| store_u8_2x1(dst, t0, 0); |
| dst += dst_stride; |
| } |
| h -= 1; |
| } while (h > 0); |
| #endif |
| } else { |
| uint8_t *d; |
| int16x8_t s11; |
| #if defined(__aarch64__) |
| int16x8_t 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_horiz_8x8(s0, s1, s2, s3, s4, s5, s6, s7, x_filter, |
| horiz_const); |
| t1 = convolve8_horiz_8x8(s1, s2, s3, s4, s5, s6, s7, s8, x_filter, |
| horiz_const); |
| t2 = convolve8_horiz_8x8(s2, s3, s4, s5, s6, s7, s8, s9, x_filter, |
| horiz_const); |
| t3 = convolve8_horiz_8x8(s3, s4, s5, s6, s7, s8, s9, s10, x_filter, |
| horiz_const); |
| t4 = convolve8_horiz_8x8(s4, s5, s6, s7, s8, s9, s10, s11, x_filter, |
| horiz_const); |
| t5 = convolve8_horiz_8x8(s5, s6, s7, s8, s9, s10, s11, s12, x_filter, |
| horiz_const); |
| t6 = convolve8_horiz_8x8(s6, s7, s8, s9, s10, s11, s12, s13, x_filter, |
| horiz_const); |
| t7 = convolve8_horiz_8x8(s7, s8, s9, s10, s11, s12, s13, s14, |
| x_filter, horiz_const); |
| |
| transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| |
| if (h != 2) { |
| store_u8_8x8(d, dst_stride, t0, t1, t2, t3, t4, t5, t6, t7); |
| } else { |
| store_u8_8x2(d, dst_stride, t0, t1); |
| } |
| |
| 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); |
| #else |
| // This shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use a single |
| // rounding right shift by FILTER_BITS - instead of a first rounding right |
| // shift by ROUND0_BITS, followed by second rounding right shift by |
| // FILTER_BITS - ROUND0_BITS. |
| // The outermost -1 is needed because we halved the filter values. |
| const int16x8_t horiz_const = vdupq_n_s16(1 << ((ROUND0_BITS - 1) - 1)); |
| |
| do { |
| t0 = vld1_u8(src); // a0 a1 a2 a3 a4 a5 a6 a7 |
| s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| |
| width = w; |
| s = src + 8; |
| d = dst; |
| __builtin_prefetch(dst); |
| |
| do { |
| t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15 |
| s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| s11 = s0; |
| s0 = s7; |
| |
| s1 = vextq_s16(s11, s7, 1); // a1 a2 a3 a4 a5 a6 a7 a8 |
| s2 = vextq_s16(s11, s7, 2); // a2 a3 a4 a5 a6 a7 a8 a9 |
| s3 = vextq_s16(s11, s7, 3); // a3 a4 a5 a6 a7 a8 a9 a10 |
| s4 = vextq_s16(s11, s7, 4); // a4 a5 a6 a7 a8 a9 a10 a11 |
| s5 = vextq_s16(s11, s7, 5); // a5 a6 a7 a8 a9 a10 a11 a12 |
| s6 = vextq_s16(s11, s7, 6); // a6 a7 a8 a9 a10 a11 a12 a13 |
| s7 = vextq_s16(s11, s7, 7); // a7 a8 a9 a10 a11 a12 a13 a14 |
| |
| t0 = convolve8_horiz_8x8(s11, s1, s2, s3, s4, s5, s6, s7, x_filter, |
| horiz_const); |
| |
| vst1_u8(d, t0); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| src += src_stride; |
| dst += dst_stride; |
| h -= 1; |
| } while (h > 0); |
| #endif |
| } |
| #if defined(__aarch64__) |
| } |
| #endif |
| } |
| |
| #endif // defined(__aarch64__) && defined(__ARM_FEATURE_MATMUL_INT8) |
| |
| static INLINE void convolve_y_sr_6tap_neon(const uint8_t *src_ptr, |
| int src_stride, uint8_t *dst_ptr, |
| const int dst_stride, int w, int h, |
| const int16x8_t y_filter_0_7) { |
| if (w <= 4) { |
| uint8x8_t t0, t1, t2, t3, t4, t5; |
| int16x4_t s0, s1, s2, s3, s4, s5, d0; |
| uint8x8_t d01; |
| |
| #if defined(__aarch64__) |
| uint8x8_t t6, t7, t8; |
| int16x4_t s6, s7, s8, d1, d2, d3; |
| uint8x8_t d23; |
| #endif // defined(__aarch64__) |
| |
| const uint8_t *s = src_ptr + src_stride; |
| uint8_t *d = dst_ptr; |
| |
| load_u8_8x5(s, src_stride, &t0, &t1, &t2, &t3, &t4); |
| s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| s4 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t4))); |
| s += 5 * src_stride; |
| |
| do { |
| #if defined(__aarch64__) |
| load_u8_8x4(s, src_stride, &t5, &t6, &t7, &t8); |
| s5 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t5))); |
| s6 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t6))); |
| s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t7))); |
| s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t8))); |
| |
| d0 = convolve6_4x4(s0, s1, s2, s3, s4, s5, y_filter_0_7); |
| d1 = convolve6_4x4(s1, s2, s3, s4, s5, s6, y_filter_0_7); |
| d2 = convolve6_4x4(s2, s3, s4, s5, s6, s7, y_filter_0_7); |
| d3 = convolve6_4x4(s3, s4, s5, s6, s7, s8, y_filter_0_7); |
| |
| d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), FILTER_BITS - 1); |
| d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), FILTER_BITS - 1); |
| |
| if (w == 2) { |
| store_u8_2x1(d + 0 * dst_stride, d01, 0); |
| store_u8_2x1(d + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(d + 2 * dst_stride, d23, 0); |
| store_u8_2x1(d + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(d + 0 * dst_stride, d01, 0); |
| store_u8_4x1(d + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(d + 2 * dst_stride, d23, 0); |
| store_u8_4x1(d + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| h -= 4; |
| #else // !defined(__aarch64__) |
| t5 = vld1_u8(s); |
| s5 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t5))); |
| |
| d0 = convolve6_4x4(s0, s1, s2, s3, s4, s5, y_filter_0_7); |
| d01 = vqrshrun_n_s16(vcombine_s16(d0, vdup_n_s16(0)), FILTER_BITS - 1); |
| |
| if (w == 2) { |
| store_u8_2x1(d, d01, 0); |
| } else { |
| store_u8_4x1(d, d01, 0); |
| } |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s += src_stride; |
| d += dst_stride; |
| h--; |
| #endif // defined(__aarch64__) |
| } while (h > 0); |
| } else { |
| // if width is a multiple of 8 & height is a multiple of 4 |
| uint8x8_t t0, t1, t2, t3, t4, t5; |
| int16x8_t s0, s1, s2, s3, s4, s5, dd0; |
| uint8x8_t d0; |
| #if defined(__aarch64__) |
| uint8x8_t t6, t7, t8; |
| int16x8_t s6, s7, s8, dd1, dd2, dd3; |
| uint8x8_t d1, d2, d3; |
| #endif // defined(__aarch64__) |
| |
| do { |
| int height = h; |
| const uint8_t *s = src_ptr + src_stride; |
| uint8_t *d = dst_ptr; |
| |
| load_u8_8x5(s, src_stride, &t0, &t1, &t2, &t3, &t4); |
| 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)); |
| s += 5 * src_stride; |
| |
| do { |
| #if defined(__aarch64__) |
| load_u8_8x4(s, src_stride, &t5, &t6, &t7, &t8); |
| s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); |
| s7 = vreinterpretq_s16_u16(vmovl_u8(t7)); |
| s8 = vreinterpretq_s16_u16(vmovl_u8(t8)); |
| |
| dd0 = convolve6_8x4(s0, s1, s2, s3, s4, s5, y_filter_0_7); |
| dd1 = convolve6_8x4(s1, s2, s3, s4, s5, s6, y_filter_0_7); |
| dd2 = convolve6_8x4(s2, s3, s4, s5, s6, s7, y_filter_0_7); |
| dd3 = convolve6_8x4(s3, s4, s5, s6, s7, s8, y_filter_0_7); |
| |
| d0 = vqrshrun_n_s16(dd0, FILTER_BITS - 1); |
| d1 = vqrshrun_n_s16(dd1, FILTER_BITS - 1); |
| d2 = vqrshrun_n_s16(dd2, FILTER_BITS - 1); |
| d3 = vqrshrun_n_s16(dd3, FILTER_BITS - 1); |
| |
| if (h != 2) { |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3); |
| } else { |
| store_u8_8x2(d, dst_stride, d0, d1); |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| #else // !defined(__aarch64__) |
| t5 = vld1_u8(s); |
| s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| |
| dd0 = convolve6_8x4(s0, s1, s2, s3, s4, s5, y_filter_0_7); |
| d0 = vqrshrun_n_s16(dd0, FILTER_BITS - 1); |
| |
| vst1_u8(d, d0); |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s += src_stride; |
| d += dst_stride; |
| height--; |
| #endif // defined(__aarch64__) |
| } while (height > 0); |
| |
| src_ptr += 8; |
| dst_ptr += 8; |
| w -= 8; |
| } while (w > 0); |
| } |
| } |
| |
| static INLINE int16x4_t convolve12_y_4x4_s32( |
| const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, |
| const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, |
| const int16x4_t s6, const int16x4_t s7, const int16x4_t s8, |
| const int16x4_t s9, const int16x4_t s10, const int16x4_t s11, |
| const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11) { |
| const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); |
| const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); |
| int16x4_t sum; |
| |
| sum = vmul_lane_s16(s0, y_filter_0_3, 0); |
| sum = vmla_lane_s16(sum, s1, y_filter_0_3, 1); |
| sum = vmla_lane_s16(sum, s2, y_filter_0_3, 2); |
| sum = vmla_lane_s16(sum, s3, y_filter_0_3, 3); |
| sum = vmla_lane_s16(sum, s4, y_filter_4_7, 0); |
| |
| sum = vmla_lane_s16(sum, s7, y_filter_4_7, 3); |
| sum = vmla_lane_s16(sum, s8, y_filter_8_11, 0); |
| sum = vmla_lane_s16(sum, s9, y_filter_8_11, 1); |
| sum = vmla_lane_s16(sum, s10, y_filter_8_11, 2); |
| sum = vmla_lane_s16(sum, s11, y_filter_8_11, 3); |
| |
| // Separate out the two filter values in the middle of the kernel that have |
| // the largest magnitude and use saturating addition to prevent overflow. This |
| // means we can stay at 16-bit elements, rather than having to widen |
| // everything to a 32-bit result, requiring twice the number of instructions. |
| sum = vqadd_s16(sum, vmul_lane_s16(s5, y_filter_4_7, 1)); |
| sum = vqadd_s16(sum, vmul_lane_s16(s6, y_filter_4_7, 2)); |
| |
| return sum; |
| } |
| |
| static INLINE uint8x8_t convolve12_y_8x4_s32( |
| const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, |
| const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, |
| const int16x8_t s6, const int16x8_t s7, const int16x8_t s8, |
| const int16x8_t s9, const int16x8_t s10, const int16x8_t s11, |
| const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11) { |
| const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); |
| const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); |
| int16x8_t sum; |
| |
| sum = vmulq_lane_s16(s0, y_filter_0_3, 0); |
| sum = vmlaq_lane_s16(sum, s1, y_filter_0_3, 1); |
| sum = vmlaq_lane_s16(sum, s2, y_filter_0_3, 2); |
| sum = vmlaq_lane_s16(sum, s3, y_filter_0_3, 3); |
| sum = vmlaq_lane_s16(sum, s4, y_filter_4_7, 0); |
| |
| sum = vmlaq_lane_s16(sum, s7, y_filter_4_7, 3); |
| sum = vmlaq_lane_s16(sum, s8, y_filter_8_11, 0); |
| sum = vmlaq_lane_s16(sum, s9, y_filter_8_11, 1); |
| sum = vmlaq_lane_s16(sum, s10, y_filter_8_11, 2); |
| sum = vmlaq_lane_s16(sum, s11, y_filter_8_11, 3); |
| |
| // Separate out the two filter values in the middle of the kernel that have |
| // the largest magnitude and use saturating addition to prevent overflow. This |
| // means we can stay at 16-bit elements, rather than having to widen |
| // everything to a 32-bit result, requiring twice the number of instructions. |
| sum = vqaddq_s16(sum, vmulq_lane_s16(s5, y_filter_4_7, 1)); |
| sum = vqaddq_s16(sum, vmulq_lane_s16(s6, y_filter_4_7, 2)); |
| |
| return vqrshrun_n_s16(sum, FILTER_BITS); |
| } |
| |
| static INLINE void convolve_y_sr_12tap_neon(const uint8_t *src_ptr, |
| int src_stride, uint8_t *dst_ptr, |
| int dst_stride, int w, int h, |
| const int16_t *y_filter_ptr) { |
| // Special case the following no-op filter as 128 won't fit into the |
| // 8-bit signed dot-product instruction: |
| // { 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 } |
| if (y_filter_ptr[5] == 128) { |
| // Undo the horizontal offset in the calling function |
| src_ptr += 5 * src_stride; |
| |
| if (w <= 4) { |
| for (int i = 0; i < h; i += 2) { |
| uint8x8_t d0 = load_unaligned_u8(src_ptr + i * src_stride, src_stride); |
| if (w == 2) { |
| store_u8_2x1(dst_ptr + i * dst_stride, d0, 0); |
| store_u8_2x1(dst_ptr + (i + 1) * dst_stride, d0, 1); |
| } else if (w == 4) { |
| store_u8_4x1(dst_ptr + i * dst_stride, d0, 0); |
| store_u8_4x1(dst_ptr + (i + 1) * dst_stride, d0, 1); |
| } |
| } |
| } else { |
| for (int i = 0; i < h; i++) { |
| for (int j = 0; j < w; j += 8) { |
| uint8x8_t d0 = vld1_u8(src_ptr + i * src_stride + j); |
| vst1_u8(dst_ptr + i * dst_stride + j, d0); |
| } |
| } |
| } |
| return; |
| } |
| |
| const int16x8_t y_filter_0_7 = vld1q_s16(y_filter_ptr); |
| const int16x4_t y_filter_8_11 = vld1_s16(y_filter_ptr + 8); |
| |
| if (w <= 4) { |
| uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14; |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14; |
| int16x4_t d0, d1, d2, d3; |
| int16x8_t dd01, dd23; |
| uint8x8_t d01, d23; |
| |
| load_u8_8x11(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7, |
| &t8, &t9, &t10); |
| s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| s4 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t4))); |
| s5 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t5))); |
| s6 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t6))); |
| s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t7))); |
| s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t8))); |
| s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t9))); |
| s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t10))); |
| |
| src_ptr += 11 * src_stride; |
| |
| do { |
| load_u8_8x4(src_ptr, src_stride, &t11, &t12, &t13, &t14); |
| s11 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t11))); |
| s12 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t12))); |
| s13 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t13))); |
| s14 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t14))); |
| |
| d0 = convolve12_y_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, y_filter_0_7, y_filter_8_11); |
| d1 = convolve12_y_4x4_s32(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| s12, y_filter_0_7, y_filter_8_11); |
| d2 = convolve12_y_4x4_s32(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, y_filter_0_7, y_filter_8_11); |
| d3 = convolve12_y_4x4_s32(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, |
| s14, y_filter_0_7, y_filter_8_11); |
| |
| dd01 = vcombine_s16(d0, d1); |
| dd23 = vcombine_s16(d2, d3); |
| |
| d01 = vqrshrun_n_s16(dd01, FILTER_BITS); |
| d23 = vqrshrun_n_s16(dd23, FILTER_BITS); |
| |
| if (w == 2) { |
| store_u8_2x1(dst_ptr + 0 * dst_stride, d01, 0); |
| store_u8_2x1(dst_ptr + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(dst_ptr + 2 * dst_stride, d23, 0); |
| store_u8_2x1(dst_ptr + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(dst_ptr + 0 * dst_stride, d01, 0); |
| store_u8_4x1(dst_ptr + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(dst_ptr + 2 * dst_stride, d23, 0); |
| store_u8_4x1(dst_ptr + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| s7 = s11; |
| s8 = s12; |
| s9 = s13; |
| s10 = s14; |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| } while (h > 0); |
| } else { |
| uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14; |
| uint8x8_t d0, d1, d2, d3; |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14; |
| |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int height = h; |
| |
| load_u8_8x11(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7, &t8, |
| &t9, &t10); |
| 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)); |
| s7 = vreinterpretq_s16_u16(vmovl_u8(t7)); |
| s8 = vreinterpretq_s16_u16(vmovl_u8(t8)); |
| s9 = vreinterpretq_s16_u16(vmovl_u8(t9)); |
| s10 = vreinterpretq_s16_u16(vmovl_u8(t10)); |
| |
| s += 11 * src_stride; |
| |
| do { |
| load_u8_8x4(s, src_stride, &t11, &t12, &t13, &t14); |
| s11 = vreinterpretq_s16_u16(vmovl_u8(t11)); |
| s12 = vreinterpretq_s16_u16(vmovl_u8(t12)); |
| s13 = vreinterpretq_s16_u16(vmovl_u8(t13)); |
| s14 = vreinterpretq_s16_u16(vmovl_u8(t14)); |
| |
| d0 = convolve12_y_8x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, y_filter_0_7, y_filter_8_11); |
| d1 = convolve12_y_8x4_s32(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| s12, y_filter_0_7, y_filter_8_11); |
| d2 = convolve12_y_8x4_s32(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, y_filter_0_7, y_filter_8_11); |
| d3 = convolve12_y_8x4_s32(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, s14, y_filter_0_7, y_filter_8_11); |
| |
| if (h != 2) { |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3); |
| } else { |
| store_u8_8x2(d, dst_stride, d0, d1); |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| s7 = s11; |
| s8 = s12; |
| s9 = s13; |
| s10 = s14; |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| } while (height > 0); |
| |
| src_ptr += 8; |
| dst_ptr += 8; |
| w -= 8; |
| } while (w > 0); |
| } |
| } |
| |
| void av1_convolve_y_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_y, |
| const int subpel_y_qn) { |
| const int y_filter_taps = get_filter_tap(filter_params_y, subpel_y_qn); |
| const int vert_offset = filter_params_y->taps / 2 - 1; |
| |
| src -= vert_offset * src_stride; |
| |
| const int16_t *y_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_y, subpel_y_qn & SUBPEL_MASK); |
| |
| if (y_filter_taps > 8) { |
| convolve_y_sr_12tap_neon(src, src_stride, dst, dst_stride, w, h, |
| y_filter_ptr); |
| return; |
| } |
| |
| // Filter values are even so downshift by 1 to reduce precision requirements. |
| const int16x8_t y_filter = vshrq_n_s16(vld1q_s16(y_filter_ptr), 1); |
| |
| if (y_filter_taps < 8) { |
| convolve_y_sr_6tap_neon(src, src_stride, dst, dst_stride, w, h, y_filter); |
| return; |
| } |
| |
| if (w <= 4) { |
| uint8x8_t d01; |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0; |
| #if defined(__aarch64__) |
| uint8x8_t d23; |
| int16x4_t s8, s9, s10, d1, d2, d3; |
| #endif |
| 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; |
| #if defined(__aarch64__) |
| 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_4x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| d1 = convolve8_4x4(s1, s2, s3, s4, s5, s6, s7, s8, y_filter); |
| d2 = convolve8_4x4(s2, s3, s4, s5, s6, s7, s8, s9, y_filter); |
| d3 = convolve8_4x4(s3, s4, s5, s6, s7, s8, s9, s10, y_filter); |
| |
| d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), FILTER_BITS - 1); |
| d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), FILTER_BITS - 1); |
| |
| if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_2x1(dst + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_2x1(dst + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(dst + 0 * dst_stride, d01, 0); |
| store_u8_4x1(dst + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(dst + 2 * dst_stride, d23, 0); |
| store_u8_4x1(dst + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| dst += 4 * dst_stride; |
| h -= 4; |
| #else |
| __builtin_prefetch(dst + 0 * dst_stride); |
| __builtin_prefetch(src + 0 * src_stride); |
| |
| d0 = convolve8_4x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| |
| d01 = vqrshrun_n_s16(vcombine_s16(d0, d0), FILTER_BITS - 1); |
| |
| if (w == 4) { |
| store_u8_4x1(dst, d01, 0); |
| } else if (w == 2) { |
| store_u8_2x1(dst, d01, 0); |
| } |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s5 = s6; |
| s6 = s7; |
| dst += dst_stride; |
| h -= 1; |
| #endif |
| } while (h > 0); |
| } else { |
| int height; |
| const uint8_t *s; |
| uint8_t *d; |
| uint8x8_t t0; |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; |
| #if defined(__aarch64__) |
| uint8x8_t t1, t2, t3; |
| int16x8_t s8, s9, s10; |
| #endif |
| 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; |
| #if defined(__aarch64__) |
| 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_vert_8x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| t1 = convolve8_vert_8x4(s1, s2, s3, s4, s5, s6, s7, s8, y_filter); |
| t2 = convolve8_vert_8x4(s2, s3, s4, s5, s6, s7, s8, s9, y_filter); |
| t3 = convolve8_vert_8x4(s3, s4, s5, s6, s7, s8, s9, s10, y_filter); |
| |
| if (h != 2) { |
| store_u8_8x4(d, dst_stride, t0, t1, t2, t3); |
| } else { |
| store_u8_8x2(d, dst_stride, t0, t1); |
| } |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| d += 4 * dst_stride; |
| height -= 4; |
| #else |
| __builtin_prefetch(d); |
| __builtin_prefetch(s); |
| |
| t0 = convolve8_vert_8x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| |
| vst1_u8(d, t0); |
| d += dst_stride; |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s5 = s6; |
| s6 = s7; |
| height -= 1; |
| #endif |
| } while (height > 0); |
| src += 8; |
| dst += 8; |
| w -= 8; |
| } while (w > 0); |
| } |
| } |
| |
| #if defined(__aarch64__) && defined(__ARM_FEATURE_MATMUL_INT8) |
| |
| static INLINE int16x4_t convolve12_horiz_4_usdot(uint8x16_t samples, |
| const int8x16_t filters, |
| const uint8x16x3_t permute_tbl, |
| int32x4_t horiz_const) { |
| uint8x16_t permuted_samples[3]; |
| int32x4_t sum; |
| |
| /* Permute samples ready for dot product. */ |
| /* { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } */ |
| permuted_samples[0] = vqtbl1q_u8(samples, permute_tbl.val[0]); |
| /* { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } */ |
| permuted_samples[1] = vqtbl1q_u8(samples, permute_tbl.val[1]); |
| /* { 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 } */ |
| permuted_samples[2] = vqtbl1q_u8(samples, permute_tbl.val[2]); |
| |
| /* First 4 output values. */ |
| sum = vusdotq_laneq_s32(horiz_const, permuted_samples[0], filters, 0); |
| sum = vusdotq_laneq_s32(sum, permuted_samples[1], filters, 1); |
| sum = vusdotq_laneq_s32(sum, permuted_samples[2], filters, 2); |
| |
| /* Narrow and re-pack. */ |
| return vshrn_n_s32(sum, ROUND0_BITS); |
| } |
| |
| static INLINE int16x8_t convolve12_horiz_8_usdot(uint8x16_t samples0, |
| uint8x16_t samples1, |
| const int8x16_t filters, |
| const uint8x16x3_t permute_tbl, |
| const int32x4_t horiz_const) { |
| uint8x16_t permuted_samples[4]; |
| int32x4_t sum[2]; |
| |
| /* Permute samples ready for dot product. */ |
| /* { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } */ |
| permuted_samples[0] = vqtbl1q_u8(samples0, permute_tbl.val[0]); |
| /* { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } */ |
| permuted_samples[1] = vqtbl1q_u8(samples0, permute_tbl.val[1]); |
| /* { 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 } */ |
| permuted_samples[2] = vqtbl1q_u8(samples0, permute_tbl.val[2]); |
| /* {12, 13, 14, 15, 13, 14, 15, 16, 14, 15, 16, 17, 15, 16, 17, 18 } */ |
| permuted_samples[3] = vqtbl1q_u8(samples1, permute_tbl.val[2]); |
| |
| /* First 4 output values. */ |
| sum[0] = vusdotq_laneq_s32(horiz_const, permuted_samples[0], filters, 0); |
| sum[0] = vusdotq_laneq_s32(sum[0], permuted_samples[1], filters, 1); |
| sum[0] = vusdotq_laneq_s32(sum[0], permuted_samples[2], filters, 2); |
| /* Second 4 output values. */ |
| sum[1] = vusdotq_laneq_s32(horiz_const, permuted_samples[1], filters, 0); |
| sum[1] = vusdotq_laneq_s32(sum[1], permuted_samples[2], filters, 1); |
| sum[1] = vusdotq_laneq_s32(sum[1], permuted_samples[3], filters, 2); |
| |
| /* Narrow and re-pack. */ |
| return vcombine_s16(vshrn_n_s32(sum[0], ROUND0_BITS), |
| vshrn_n_s32(sum[1], ROUND0_BITS)); |
| } |
| |
| static INLINE void convolve_2d_sr_horiz_12tap_neon( |
| const uint8_t *src_ptr, int src_stride, int16_t *dst_ptr, |
| const int dst_stride, int w, int h, const int16x8_t x_filter_0_7, |
| const int16x4_t x_filter_8_11) { |
| const int bd = 8; |
| |
| // Special case the following no-op filter as 128 won't fit into the |
| // 8-bit signed dot-product instruction: |
| // { 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 } |
| if (vgetq_lane_s16(x_filter_0_7, 5) == 128) { |
| const int16x8_t horiz_const = vdupq_n_s16((1 << (bd - 1))); |
| // Undo the horizontal offset in the calling function. |
| src_ptr += 5; |
| |
| for (int i = 0; i < h; i++) { |
| for (int j = 0; j < w; j += 8) { |
| uint8x8_t s0 = vld1_u8(src_ptr + i * src_stride + j); |
| uint16x8_t t0 = vaddw_u8(vreinterpretq_u16_s16(horiz_const), s0); |
| int16x8_t d0 = |
| vshlq_n_s16(vreinterpretq_s16_u16(t0), FILTER_BITS - ROUND0_BITS); |
| if (w == 2) { |
| store_s16_2x1(dst_ptr + i * dst_stride, vget_low_s16(d0), 0); |
| } else if (w == 4) { |
| vst1_s16(dst_ptr + i * dst_stride, vget_low_s16(d0)); |
| } else { |
| vst1q_s16(dst_ptr + i * dst_stride + j, d0); |
| } |
| } |
| } |
| } else { |
| // Narrow filter values to 8-bit. |
| const int16x8x2_t x_filter_s16 = { |
| { x_filter_0_7, vcombine_s16(x_filter_8_11, vdup_n_s16(0)) } |
| }; |
| const int8x16_t x_filter = vcombine_s8(vmovn_s16(x_filter_s16.val[0]), |
| vmovn_s16(x_filter_s16.val[1])); |
| // This shim of 1 << (ROUND0_BITS - 1) enables us to use non-rounding shifts |
| // - which are generally faster than rounding shifts on modern CPUs. |
| const int32x4_t horiz_const = |
| vdupq_n_s32((1 << (bd + FILTER_BITS - 1)) + (1 << (ROUND0_BITS - 1))); |
| const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); |
| |
| if (w <= 4) { |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t s0, s1, s2, s3; |
| int16x4_t d0, d1, d2, d3; |
| |
| load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); |
| |
| d0 = convolve12_horiz_4_usdot(s0, x_filter, permute_tbl, horiz_const); |
| d1 = convolve12_horiz_4_usdot(s1, x_filter, permute_tbl, horiz_const); |
| d2 = convolve12_horiz_4_usdot(s2, x_filter, permute_tbl, horiz_const); |
| d3 = convolve12_horiz_4_usdot(s3, x_filter, permute_tbl, horiz_const); |
| |
| if (w == 2) { |
| store_s16_2x1(d + 0 * dst_stride, d0, 0); |
| store_s16_2x1(d + 1 * dst_stride, d1, 0); |
| store_s16_2x1(d + 2 * dst_stride, d2, 0); |
| store_s16_2x1(d + 3 * dst_stride, d3, 0); |
| } else { |
| store_s16_4x4(d, dst_stride, d0, d1, d2, d3); |
| } |
| |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width > 0); |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| } while (h >= 4); |
| |
| for (; h > 0; h--) { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t s0; |
| int16x4_t d0; |
| |
| s0 = vld1q_u8(s); |
| |
| d0 = convolve12_horiz_4_usdot(s0, x_filter, permute_tbl, horiz_const); |
| |
| if (w == 2) { |
| store_s16_2x1(d, d0, 0); |
| } else { |
| vst1_s16(d, d0); |
| } |
| |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width > 0); |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } |
| } else { |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t s0[2], s1[2], s2[2], s3[2]; |
| int16x8_t d0, d1, d2, d3; |
| |
| load_u8_16x4(s, src_stride, &s0[0], &s1[0], &s2[0], &s3[0]); |
| load_u8_16x4(s + 4, src_stride, &s0[1], &s1[1], &s2[1], &s3[1]); |
| |
| d0 = convolve12_horiz_8_usdot(s0[0], s0[1], x_filter, permute_tbl, |
| horiz_const); |
| d1 = convolve12_horiz_8_usdot(s1[0], s1[1], x_filter, permute_tbl, |
| horiz_const); |
| d2 = convolve12_horiz_8_usdot(s2[0], s2[1], x_filter, permute_tbl, |
| horiz_const); |
| d3 = convolve12_horiz_8_usdot(s3[0], s3[1], x_filter, permute_tbl, |
| horiz_const); |
| |
| store_s16_8x4(d, dst_stride, d0, d1, d2, d3); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| } while (h >= 4); |
| |
| for (; h > 0; h--) { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t s0[2]; |
| int16x8_t d0; |
| |
| s0[0] = vld1q_u8(s); |
| s0[1] = vld1q_u8(s + 4); |
| |
| d0 = convolve12_horiz_8_usdot(s0[0], s0[1], x_filter, permute_tbl, |
| horiz_const); |
| |
| vst1q_s16(d, d0); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } |
| } |
| } |
| } |
| |
| #elif defined(__aarch64__) && defined(__ARM_FEATURE_DOTPROD) |
| |
| static INLINE void convolve_2d_sr_horiz_12tap_neon( |
| const uint8_t *src_ptr, int src_stride, int16_t *dst_ptr, |
| const int dst_stride, int w, int h, const int16x8_t x_filter_0_7, |
| const int16x4_t x_filter_8_11) { |
| const int bd = 8; |
| |
| // Special case the following no-op filter as 128 won't fit into the |
| // 8-bit signed dot-product instruction: |
| // { 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 } |
| if (vgetq_lane_s16(x_filter_0_7, 5) == 128) { |
| const int16x8_t horiz_const = vdupq_n_s16((1 << (bd - 1))); |
| // Undo the horizontal offset in the calling function. |
| src_ptr += 5; |
| |
| for (int i = 0; i < h; i++) { |
| for (int j = 0; j < w; j += 8) { |
| uint8x8_t s0 = vld1_u8(src_ptr + i * src_stride + j); |
| uint16x8_t t0 = vaddw_u8(vreinterpretq_u16_s16(horiz_const), s0); |
| int16x8_t d0 = |
| vshlq_n_s16(vreinterpretq_s16_u16(t0), FILTER_BITS - ROUND0_BITS); |
| if (w == 2) { |
| store_s16_2x1(dst_ptr + i * dst_stride, vget_low_s16(d0), 0); |
| } else if (w == 4) { |
| vst1_s16(dst_ptr + i * dst_stride, vget_low_s16(d0)); |
| } else { |
| vst1q_s16(dst_ptr + i * dst_stride + j, d0); |
| } |
| } |
| } |
| } else { |
| // Narrow filter values to 8-bit. |
| const int16x8x2_t x_filter_s16 = { |
| { x_filter_0_7, vcombine_s16(x_filter_8_11, vdup_n_s16(0)) } |
| }; |
| const int8x16_t x_filter = vcombine_s8(vmovn_s16(x_filter_s16.val[0]), |
| vmovn_s16(x_filter_s16.val[1])); |
| |
| // This shim of 1 << (ROUND0_BITS - 1) enables us to use non-rounding shifts |
| // - which are generally faster than rounding shifts on modern CPUs. |
| const int32_t horiz_const = |
| ((1 << (bd + FILTER_BITS - 1)) + (1 << (ROUND0_BITS - 1))); |
| // Dot product constants. |
| const int32x4_t correct_tmp = |
| vaddq_s32(vpaddlq_s16(vshlq_n_s16(x_filter_s16.val[0], 7)), |
| vpaddlq_s16(vshlq_n_s16(x_filter_s16.val[1], 7))); |
| const int32x4_t correction = |
| vdupq_n_s32(vaddvq_s32(correct_tmp) + horiz_const); |
| const uint8x16_t range_limit = vdupq_n_u8(128); |
| const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); |
| |
| if (w <= 4) { |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t s0, s1, s2, s3; |
| int16x4_t d0, d1, d2, d3; |
| |
| load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); |
| |
| d0 = convolve12_horiz_4_sdot(s0, x_filter, correction, range_limit, |
| permute_tbl); |
| d1 = convolve12_horiz_4_sdot(s1, x_filter, correction, range_limit, |
| permute_tbl); |
| d2 = convolve12_horiz_4_sdot(s2, x_filter, correction, range_limit, |
| permute_tbl); |
| d3 = convolve12_horiz_4_sdot(s3, x_filter, correction, range_limit, |
| permute_tbl); |
| |
| if (w == 2) { |
| store_s16_2x1(d + 0 * dst_stride, d0, 0); |
| store_s16_2x1(d + 1 * dst_stride, d1, 0); |
| store_s16_2x1(d + 2 * dst_stride, d2, 0); |
| store_s16_2x1(d + 3 * dst_stride, d3, 0); |
| } else { |
| store_s16_4x4(d, dst_stride, d0, d1, d2, d3); |
| } |
| |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width > 0); |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| } while (h >= 4); |
| |
| for (; h > 0; h--) { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t s0; |
| int16x4_t d0; |
| |
| s0 = vld1q_u8(s); |
| |
| d0 = convolve12_horiz_4_sdot(s0, x_filter, correction, range_limit, |
| permute_tbl); |
| |
| if (w == 2) { |
| store_s16_2x1(d, d0, 0); |
| } else { |
| vst1_s16(d, d0); |
| } |
| |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width > 0); |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } |
| } else { |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t s0[2], s1[2], s2[2], s3[2]; |
| int16x8_t d0, d1, d2, d3; |
| |
| load_u8_16x4(s, src_stride, &s0[0], &s1[0], &s2[0], &s3[0]); |
| load_u8_16x4(s + 4, src_stride, &s0[1], &s1[1], &s2[1], &s3[1]); |
| |
| d0 = convolve12_horiz_8_sdot(s0[0], s0[1], x_filter, correction, |
| range_limit, permute_tbl); |
| d1 = convolve12_horiz_8_sdot(s1[0], s1[1], x_filter, correction, |
| range_limit, permute_tbl); |
| d2 = convolve12_horiz_8_sdot(s2[0], s2[1], x_filter, correction, |
| range_limit, permute_tbl); |
| d3 = convolve12_horiz_8_sdot(s3[0], s3[1], x_filter, correction, |
| range_limit, permute_tbl); |
| |
| store_s16_8x4(d, dst_stride, d0, d1, d2, d3); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| } while (h >= 4); |
| |
| for (; h > 0; h--) { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t s0[2]; |
| int16x8_t d0; |
| |
| s0[0] = vld1q_u8(s); |
| s0[1] = vld1q_u8(s + 4); |
| |
| d0 = convolve12_horiz_8_sdot(s0[0], s0[1], x_filter, correction, |
| range_limit, permute_tbl); |
| |
| vst1q_s16(d, d0); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } |
| } |
| } |
| } |
| |
| #else // !(defined(__aarch64__) && defined(__ARM_FEATURE_DOTPROD)) |
| |
| static INLINE int16x4_t convolve12_horiz_4x4_s16( |
| const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, |
| const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, |
| const int16x4_t s6, const int16x4_t s7, const int16x4_t s8, |
| const int16x4_t s9, const int16x4_t s10, const int16x4_t s11, |
| const int16x8_t x_filter_0_7, const int16x4_t x_filter_8_11, |
| const int32x4_t horiz_const) { |
| const int16x4_t x_filter_0_3 = vget_low_s16(x_filter_0_7); |
| const int16x4_t x_filter_4_7 = vget_high_s16(x_filter_0_7); |
| int32x4_t sum; |
| |
| sum = horiz_const; |
| sum = vmlal_lane_s16(sum, s0, x_filter_0_3, 0); |
| sum = vmlal_lane_s16(sum, s1, x_filter_0_3, 1); |
| sum = vmlal_lane_s16(sum, s2, x_filter_0_3, 2); |
| sum = vmlal_lane_s16(sum, s3, x_filter_0_3, 3); |
| sum = vmlal_lane_s16(sum, s4, x_filter_4_7, 0); |
| sum = vmlal_lane_s16(sum, s5, x_filter_4_7, 1); |
| sum = vmlal_lane_s16(sum, s6, x_filter_4_7, 2); |
| sum = vmlal_lane_s16(sum, s7, x_filter_4_7, 3); |
| sum = vmlal_lane_s16(sum, s8, x_filter_8_11, 0); |
| sum = vmlal_lane_s16(sum, s9, x_filter_8_11, 1); |
| sum = vmlal_lane_s16(sum, s10, x_filter_8_11, 2); |
| sum = vmlal_lane_s16(sum, s11, x_filter_8_11, 3); |
| |
| return vshrn_n_s32(sum, ROUND0_BITS); |
| } |
| |
| // 4 column per iteration horizontal filtering for 12-tap convolve_2d_sr. |
| // Processes one row at a time. |
| static INLINE void horiz_filter_12tap_w4_single_row( |
| const uint8_t *src_ptr, int src_stride, int16_t *dst_ptr, |
| const int dst_stride, int w, int h, const int16x8_t x_filter_0_7, |
| const int16x4_t x_filter_8_11, const int32x4_t horiz_const) { |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, d0; |
| uint8x16_t t0; |
| int16x8_t tt0, tt1; |
| |
| t0 = vld1q_u8(s); |
| tt0 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(t0))); |
| tt1 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(t0))); |
| |
| s0 = vget_low_s16(tt0); |
| s4 = vget_high_s16(tt0); |
| s8 = vget_low_s16(tt1); |
| s12 = vget_high_s16(tt1); |
| |
| s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4 |
| s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5 |
| s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6 |
| s5 = vext_s16(s4, s8, 1); // a5 a6 a7 a8 |
| s6 = vext_s16(s4, s8, 2); // a6 a7 a8 a9 |
| s7 = vext_s16(s4, s8, 3); // a7 a8 a9 a10 |
| s9 = vext_s16(s8, s12, 1); // a9 a10 a11 a12 |
| s10 = vext_s16(s8, s12, 2); // a10 a11 a12 a13 |
| s11 = vext_s16(s8, s12, 3); // a11 a12 a13 a14 |
| |
| d0 = convolve12_horiz_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, x_filter_0_7, x_filter_8_11, |
| horiz_const); |
| |
| if (w == 2) { |
| store_s16_2x1(d, d0, 0); |
| } else { |
| vst1_s16(d, d0); |
| } |
| |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width > 0); |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| h--; |
| } while (h > 0); |
| } |
| |
| static INLINE void convolve_2d_sr_horiz_12tap_neon( |
| const uint8_t *src_ptr, int src_stride, int16_t *dst_ptr, |
| const int dst_stride, int w, int h, const int16x8_t x_filter_0_7, |
| const int16x4_t x_filter_8_11) { |
| const int bd = 8; |
| // This shim of 1 << (ROUND0_BITS - 1) enables us to use non-rounding shifts - |
| // which are generally faster than rounding shifts on modern CPUs. |
| const int32x4_t horiz_const = |
| vdupq_n_s32((1 << (bd + FILTER_BITS - 1)) + (1 << (ROUND0_BITS - 1))); |
| |
| #if defined(__aarch64__) |
| do { |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; |
| uint8x8_t t0, t1, t2, t3; |
| |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s7 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| load_u8_8x4(s + 8, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| |
| s += 11; |
| |
| do { |
| int16x4_t s11, s12, s13, s14, d0, d1, d2, d3; |
| |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s11 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s12 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s13 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s14 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| d0 = convolve12_horiz_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, x_filter_0_7, x_filter_8_11, |
| horiz_const); |
| d1 = convolve12_horiz_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, s12, x_filter_0_7, x_filter_8_11, |
| horiz_const); |
| d2 = convolve12_horiz_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| s12, s13, x_filter_0_7, x_filter_8_11, |
| horiz_const); |
| d3 = convolve12_horiz_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, s14, x_filter_0_7, x_filter_8_11, |
| horiz_const); |
| |
| transpose_s16_4x4d(&d0, &d1, &d2, &d3); |
| |
| if (w == 2) { |
| store_s16_2x1(d + 0 * dst_stride, d0, 0); |
| store_s16_2x1(d + 1 * dst_stride, d1, 0); |
| store_s16_2x1(d + 2 * dst_stride, d2, 0); |
| store_s16_2x1(d + 3 * dst_stride, d3, 0); |
| } else { |
| store_s16_4x4(d, dst_stride, d0, d1, d2, d3); |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| s7 = s11; |
| s8 = s12; |
| s9 = s13; |
| s10 = s14; |
| |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width > 0); |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| } while (h >= 4); |
| |
| if (h) { |
| horiz_filter_12tap_w4_single_row(src_ptr, src_stride, dst_ptr, dst_stride, |
| w, h, x_filter_0_7, x_filter_8_11, |
| horiz_const); |
| } |
| #else // !defined(__aarch64__) |
| horiz_filter_12tap_w4_single_row(src_ptr, src_stride, dst_ptr, dst_stride, w, |
| h, x_filter_0_7, x_filter_8_11, horiz_const); |
| #endif // defined(__aarch64__) |
| } |
| |
| #endif // defined(__aarch64__) && defined(__ARM_FEATURE_DOTPROD) |
| |
| #if defined(__aarch64__) && defined(__ARM_FEATURE_MATMUL_INT8) |
| |
| static INLINE void convolve_2d_sr_horiz_8tap_neon( |
| const uint8_t *src, int src_stride, int16_t *im_block, int im_stride, int w, |
| int im_h, const int16x8_t x_filter_s16) { |
| const int bd = 8; |
| |
| const uint8_t *src_ptr = src; |
| int16_t *dst_ptr = im_block; |
| int dst_stride = im_stride; |
| |
| int height = im_h; |
| |
| // Filter values are even, so downshift by 1 to reduce intermediate precision |
| // requirements. |
| const int8x8_t x_filter = vshrn_n_s16(x_filter_s16, 1); |
| // This shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use non-rounding |
| // shifts - which are generally faster than rounding shifts on modern CPUs. |
| // The outermost -1 is needed because we halved the filter values. |
| const int32x4_t horiz_const = vdupq_n_s32((1 << (bd + FILTER_BITS - 2)) + |
| (1 << ((ROUND0_BITS - 1) - 1))); |
| |
| if (w <= 4) { |
| const uint8x16x2_t permute_tbl = vld1q_u8_x2(dot_prod_permute_tbl); |
| uint8x16_t s0, s1, s2, s3; |
| int32x4_t t0, t1, t2, t3; |
| int16x4_t d0, d1, d2, d3; |
| |
| do { |
| assert(height >= 4); |
| |
| load_u8_16x4(src_ptr, src_stride, &s0, &s1, &s2, &s3); |
| |
| t0 = convolve8_4_usdot(s0, x_filter, permute_tbl, horiz_const); |
| t1 = convolve8_4_usdot(s1, x_filter, permute_tbl, horiz_const); |
| t2 = convolve8_4_usdot(s2, x_filter, permute_tbl, horiz_const); |
| t3 = convolve8_4_usdot(s3, x_filter, permute_tbl, horiz_const); |
| |
| // We halved the convolution filter values so -1 from the right shift. |
| d0 = vshrn_n_s32(t0, ROUND0_BITS - 1); |
| d1 = vshrn_n_s32(t1, ROUND0_BITS - 1); |
| d2 = vshrn_n_s32(t2, ROUND0_BITS - 1); |
| d3 = vshrn_n_s32(t3, ROUND0_BITS - 1); |
| |
| if (w == 2) { |
| store_s16_2x1(dst_ptr + 0 * dst_stride, d0, 0); |
| store_s16_2x1(dst_ptr + 1 * dst_stride, d1, 0); |
| store_s16_2x1(dst_ptr + 2 * dst_stride, d2, 0); |
| store_s16_2x1(dst_ptr + 3 * dst_stride, d3, 0); |
| } else { |
| store_s16_4x4(dst_ptr, dst_stride, d0, d1, d2, d3); |
| } |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| height -= 4; |
| } while (height >= 4); |
| |
| if (height) { |
| assert(height < 4); |
| |
| do { |
| s0 = vld1q_u8(src_ptr); |
| t0 = convolve8_4_usdot(s0, x_filter, permute_tbl, horiz_const); |
| // We halved the convolution filter values so -1 from the right shift. |
| d0 = vshrn_n_s32(t0, ROUND0_BITS - 1); |
| |
| if (w == 2) { |
| store_s16_2x1(dst_ptr, d0, 0); |
| } else { |
| vst1_s16(dst_ptr, d0); |
| } |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| height--; |
| } while (height > 0); |
| } |
| } else { |
| const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); |
| uint8x16_t s0, s1, s2, s3; |
| int16x8_t d0, d1, d2, d3; |
| |
| do { |
| assert(height >= 4); |
| |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); |
| |
| d0 = convolve8_horiz_8_usdot(s0, x_filter, permute_tbl, horiz_const); |
| d1 = convolve8_horiz_8_usdot(s1, x_filter, permute_tbl, horiz_const); |
| d2 = convolve8_horiz_8_usdot(s2, x_filter, permute_tbl, horiz_const); |
| d3 = convolve8_horiz_8_usdot(s3, x_filter, permute_tbl, horiz_const); |
| |
| store_s16_8x4(d, dst_stride, d0, d1, d2, d3); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| height -= 4; |
| } while (height >= 4); |
| |
| if (height) { |
| assert(height < 4); |
| |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| s0 = vld1q_u8(s); |
| d0 = convolve8_horiz_8_usdot(s0, x_filter, permute_tbl, horiz_const); |
| vst1q_s16(d, d0); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| height--; |
| } while (height > 0); |
| } |
| } |
| } |
| |
| #elif defined(__aarch64__) && defined(__ARM_FEATURE_DOTPROD) |
| |
| static INLINE void convolve_2d_sr_horiz_8tap_neon( |
| const uint8_t *src, int src_stride, int16_t *im_block, int im_stride, int w, |
| int im_h, const int16x8_t x_filter_s16) { |
| const int bd = 8; |
| |
| const uint8_t *src_ptr = src; |
| int16_t *dst_ptr = im_block; |
| int dst_stride = im_stride; |
| |
| int height = im_h; |
| |
| // Filter values are even, so downshift by 1 to reduce intermediate precision |
| // requirements. |
| const int8x8_t x_filter = vshrn_n_s16(x_filter_s16, 1); |
| // This shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use non-rounding |
| // shifts - which are generally faster than rounding shifts on modern CPUs. |
| // The outermost -1 is needed because we halved the filter values. |
| const int32_t horiz_const = |
| ((1 << (bd + FILTER_BITS - 2)) + (1 << ((ROUND0_BITS - 1) - 1))); |
| // Dot product constants. |
| const int16x8_t correct_tmp = vshlq_n_s16(x_filter_s16, 6); |
| int32x4_t correction = vdupq_n_s32(vaddlvq_s16(correct_tmp) + horiz_const); |
| const uint8x16_t range_limit = vdupq_n_u8(128); |
| |
| if (w <= 4) { |
| const uint8x16x2_t permute_tbl = vld1q_u8_x2(dot_prod_permute_tbl); |
| uint8x16_t s0, s1, s2, s3; |
| int32x4_t t0, t1, t2, t3; |
| int16x4_t d0, d1, d2, d3; |
| |
| do { |
| assert(height >= 4); |
| |
| load_u8_16x4(src_ptr, src_stride, &s0, &s1, &s2, &s3); |
| |
| t0 = convolve8_4_sdot(s0, x_filter, correction, range_limit, permute_tbl); |
| t1 = convolve8_4_sdot(s1, x_filter, correction, range_limit, permute_tbl); |
| t2 = convolve8_4_sdot(s2, x_filter, correction, range_limit, permute_tbl); |
| t3 = convolve8_4_sdot(s3, x_filter, correction, range_limit, permute_tbl); |
| |
| // We halved the convolution filter values so -1 from the right shift. |
| d0 = vshrn_n_s32(t0, ROUND0_BITS - 1); |
| d1 = vshrn_n_s32(t1, ROUND0_BITS - 1); |
| d2 = vshrn_n_s32(t2, ROUND0_BITS - 1); |
| d3 = vshrn_n_s32(t3, ROUND0_BITS - 1); |
| |
| if (w == 2) { |
| store_s16_2x1(dst_ptr + 0 * dst_stride, d0, 0); |
| store_s16_2x1(dst_ptr + 1 * dst_stride, d1, 0); |
| store_s16_2x1(dst_ptr + 2 * dst_stride, d2, 0); |
| store_s16_2x1(dst_ptr + 3 * dst_stride, d3, 0); |
| } else { |
| store_s16_4x4(dst_ptr, dst_stride, d0, d1, d2, d3); |
| } |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| height -= 4; |
| } while (height >= 4); |
| |
| if (height) { |
| assert(height < 4); |
| |
| do { |
| s0 = vld1q_u8(src_ptr); |
| t0 = convolve8_4_sdot(s0, x_filter, correction, range_limit, |
| permute_tbl); |
| // We halved the convolution filter values so -1 from the right shift. |
| d0 = vshrn_n_s32(t0, ROUND0_BITS - 1); |
| |
| if (w == 2) { |
| store_s16_2x1(dst_ptr, d0, 0); |
| } else { |
| vst1_s16(dst_ptr, d0); |
| } |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| height--; |
| } while (height > 0); |
| } |
| } else { |
| const uint8x16x3_t permute_tbl = vld1q_u8_x3(dot_prod_permute_tbl); |
| uint8x16_t s0, s1, s2, s3; |
| int16x8_t d0, d1, d2, d3; |
| |
| do { |
| assert(height >= 4); |
| |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| load_u8_16x4(s, src_stride, &s0, &s1, &s2, &s3); |
| |
| d0 = convolve8_horiz_8_sdot(s0, x_filter, correction, range_limit, |
| permute_tbl); |
| d1 = convolve8_horiz_8_sdot(s1, x_filter, correction, range_limit, |
| permute_tbl); |
| d2 = convolve8_horiz_8_sdot(s2, x_filter, correction, range_limit, |
| permute_tbl); |
| d3 = convolve8_horiz_8_sdot(s3, x_filter, correction, range_limit, |
| permute_tbl); |
| |
| // We halved the convolution filter values so -1 from the right shift. |
| d0 = vshrq_n_s16(d0, ROUND0_BITS - 1); |
| d1 = vshrq_n_s16(d1, ROUND0_BITS - 1); |
| d2 = vshrq_n_s16(d2, ROUND0_BITS - 1); |
| d3 = vshrq_n_s16(d3, ROUND0_BITS - 1); |
| |
| store_s16_8x4(d, dst_stride, d0, d1, d2, d3); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| height -= 4; |
| } while (height >= 4); |
| |
| if (height) { |
| assert(height < 4); |
| |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| s0 = vld1q_u8(s); |
| d0 = convolve8_8_sdot(s0, x_filter, correction, range_limit, |
| permute_tbl, vdupq_n_s16(0)); |
| // We halved the convolution filter values so -1 from the right shift. |
| d0 = vshrq_n_s16(d0, ROUND0_BITS - 1); |
| vst1q_s16(d, d0); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| height--; |
| } while (height > 0); |
| } |
| } |
| } |
| |
| #else // !(defined(__aarch64__) && defined(__ARM_FEATURE_DOTPROD)) |
| |
| // Horizontal filtering for convolve_2d_sr for width multiple of 8 |
| // Processes one row at a time |
| static INLINE void horiz_filter_w8_single_row(const uint8_t *src_ptr, |
| int src_stride, int16_t *dst_ptr, |
| const int dst_stride, int width, |
| int height, |
| const int16x8_t x_filter, |
| const int16x8_t horiz_const) { |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; |
| do { |
| uint8x8_t t0 = vld1_u8(src_ptr); |
| s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); // a0 a1 a2 a3 a4 a5 a6 a7 |
| |
| int width_tmp = width; |
| const uint8_t *s = src_ptr + 8; |
| int16_t *dst_tmp = dst_ptr; |
| |
| __builtin_prefetch(dst_ptr); |
| |
| do { |
| t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15 |
| s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| int16x8_t sum = s0; |
| s0 = s7; |
| |
| s1 = vextq_s16(sum, s7, 1); // a1 a2 a3 a4 a5 a6 a7 a8 |
| s2 = vextq_s16(sum, s7, 2); // a2 a3 a4 a5 a6 a7 a8 a9 |
| s3 = vextq_s16(sum, s7, 3); // a3 a4 a5 a6 a7 a8 a9 a10 |
| s4 = vextq_s16(sum, s7, 4); // a4 a5 a6 a7 a8 a9 a10 a11 |
| s5 = vextq_s16(sum, s7, 5); // a5 a6 a7 a8 a9 a10 a11 a12 |
| s6 = vextq_s16(sum, s7, 6); // a6 a7 a8 a9 a10 a11 a12 a13 |
| s7 = vextq_s16(sum, s7, 7); // a7 a8 a9 a10 a11 a12 a13 a14 |
| |
| int16x8_t res0 = convolve8_horiz_8x8_s16(sum, s1, s2, s3, s4, s5, s6, s7, |
| x_filter, horiz_const); |
| |
| vst1q_s16(dst_tmp, res0); |
| |
| s += 8; |
| dst_tmp += 8; |
| width_tmp -= 8; |
| } while (width_tmp > 0); |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| height--; |
| } while (height > 0); |
| } |
| |
| // Horizontal filtering for convolve_2d_sr for width <= 4 |
| // Processes one row at a time |
| static INLINE void horiz_filter_w4_single_row(const uint8_t *src_ptr, |
| int src_stride, int16_t *dst_ptr, |
| const int dst_stride, int width, |
| int height, |
| const int16x8_t x_filter, |
| const int16x4_t horiz_const) { |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7; |
| do { |
| const uint8_t *s = src_ptr; |
| |
| __builtin_prefetch(s); |
| |
| uint8x8_t t0 = vld1_u8(s); // a0 a1 a2 a3 a4 a5 a6 a7 |
| int16x8_t tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| s0 = vget_low_s16(tt0); |
| s4 = vget_high_s16(tt0); |
| |
| __builtin_prefetch(dst_ptr); |
| s += 8; |
| |
| t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15 |
| s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| |
| s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4 |
| s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5 |
| s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6 |
| s5 = vext_s16(s4, s7, 1); // a5 a6 a7 a8 |
| s6 = vext_s16(s4, s7, 2); // a6 a7 a8 a9 |
| s7 = vext_s16(s4, s7, 3); // a7 a8 a9 a10 |
| |
| int16x4_t d0 = convolve8_horiz_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, |
| x_filter, horiz_const); |
| |
| if (width == 2) { |
| store_s16_2x1(dst_ptr, d0, 0); |
| } else { |
| vst1_s16(dst_ptr, d0); |
| } |
| |
| dst_ptr += dst_stride; |
| src_ptr += src_stride; |
| height--; |
| } while (height > 0); |
| } |
| |
| static INLINE void convolve_2d_sr_horiz_8tap_neon( |
| const uint8_t *src, int src_stride, int16_t *im_block, int im_stride, int w, |
| int im_h, const int16x8_t x_filter_s16) { |
| const int bd = 8; |
| |
| const uint8_t *src_ptr = src; |
| int16_t *dst_ptr = im_block; |
| int dst_stride = im_stride; |
| |
| int height = im_h; |
| |
| // Filter values are even, so downshift by 1 to reduce intermediate precision |
| // requirements. |
| const int16x8_t x_filter = vshrq_n_s16(x_filter_s16, 1); |
| |
| if (w <= 4) { |
| // This shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use non-rounding |
| // shifts - which are generally faster than rounding shifts on modern CPUs. |
| // The outermost -1 is needed because we halved the filter values. |
| const int16x4_t horiz_const = vdup_n_s16((1 << (bd + FILTER_BITS - 2)) + |
| (1 << ((ROUND0_BITS - 1) - 1))); |
| |
| #if defined(__aarch64__) |
| do { |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3; |
| uint8x8_t t0, t1, t2, t3; |
| const uint8_t *s = src_ptr; |
| |
| assert(height >= 4); |
| |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| |
| s += 7; |
| |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| d0 = convolve8_horiz_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter, |
| horiz_const); |
| d1 = convolve8_horiz_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter, |
| horiz_const); |
| d2 = convolve8_horiz_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter, |
| horiz_const); |
| d3 = convolve8_horiz_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter, |
| horiz_const); |
| |
| transpose_s16_4x4d(&d0, &d1, &d2, &d3); |
| |
| if (w == 2) { |
| store_s16_2x1(dst_ptr + 0 * dst_stride, d0, 0); |
| store_s16_2x1(dst_ptr + 1 * dst_stride, d1, 0); |
| store_s16_2x1(dst_ptr + 2 * dst_stride, d2, 0); |
| store_s16_2x1(dst_ptr + 3 * dst_stride, d3, 0); |
| } else { |
| store_s16_4x4(dst_ptr, dst_stride, d0, d1, d2, d3); |
| } |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| height -= 4; |
| } while (height >= 4); |
| |
| if (height) { |
| assert(height < 4); |
| horiz_filter_w4_single_row(src_ptr, src_stride, dst_ptr, dst_stride, w, |
| height, x_filter, horiz_const); |
| } |
| |
| #else // !defined(__aarch64__) |
| horiz_filter_w4_single_row(src_ptr, src_stride, dst_ptr, dst_stride, w, |
| height, x_filter, horiz_const); |
| #endif // defined(__aarch64__) |
| |
| } else { |
| // This shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use non-rounding |
| // shifts - which are generally faster than rounding shifts on modern CPUs. |
| // The outermost -1 is needed because we halved the filter values. |
| const int16x8_t horiz_const = vdupq_n_s16((1 << (bd + FILTER_BITS - 2)) + |
| (1 << ((ROUND0_BITS - 1) - 1))); |
| |
| #if defined(__aarch64__) |
| |
| for (; height >= 8; height -= 8) { |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, |
| d0, d1, d2, d3, d4, d5, d6, d7; |
| uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7; |
| |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| 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); |
| |
| 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)); |
| |
| s += 7; |
| |
| 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)); |
| |
| d0 = convolve8_horiz_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter, |
| horiz_const); |
| d1 = convolve8_horiz_8x8_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter, |
| horiz_const); |
| d2 = convolve8_horiz_8x8_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter, |
| horiz_const); |
| d3 = convolve8_horiz_8x8_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter, |
| horiz_const); |
| d4 = convolve8_horiz_8x8_s16(s4, s5, s6, s7, s8, s9, s10, s11, x_filter, |
| horiz_const); |
| d5 = convolve8_horiz_8x8_s16(s5, s6, s7, s8, s9, s10, s11, s12, |
| x_filter, horiz_const); |
| d6 = convolve8_horiz_8x8_s16(s6, s7, s8, s9, s10, s11, s12, s13, |
| x_filter, horiz_const); |
| d7 = convolve8_horiz_8x8_s16(s7, s8, s9, s10, s11, s12, s13, s14, |
| x_filter, horiz_const); |
| |
| transpose_s16_8x8(&d0, &d1, &d2, &d3, &d4, &d5, &d6, &d7); |
| |
| store_s16_8x8(d, dst_stride, d0, d1, d2, d3, d4, d5, d6, d7); |
| |
| s0 = s8; |
| s1 = s9; |
| s2 = s10; |
| s3 = s11; |
| s4 = s12; |
| s5 = s13; |
| s6 = s14; |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += 8 * src_stride; |
| dst_ptr += 8 * dst_stride; |
| } |
| |
| for (; height >= 4; height -= 4) { |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, |
| dd0, dd1, dd2, dd3, dd4, dd5, dd6, dd7; |
| int16x8_t d0, d1, d2, d3; |
| uint8x8_t t0, t1, t2, t3; |
| |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| load_u8_8x4(src_ptr, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| |
| s += 7; |
| |
| do { |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| s11 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| s12 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| s13 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| s14 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| dd0 = convolve8_4x4(s0, s1, s2, s3, s4, s5, s6, s7, x_filter); |
| dd1 = convolve8_4x4(s1, s2, s3, s4, s5, s6, s7, s8, x_filter); |
| dd2 = convolve8_4x4(s2, s3, s4, s5, s6, s7, s8, s9, x_filter); |
| dd3 = convolve8_4x4(s3, s4, s5, s6, s7, s8, s9, s10, x_filter); |
| dd4 = convolve8_4x4(s4, s5, s6, s7, s8, s9, s10, s11, x_filter); |
| dd5 = convolve8_4x4(s5, s6, s7, s8, s9, s10, s11, s12, x_filter); |
| dd6 = convolve8_4x4(s6, s7, s8, s9, s10, s11, s12, s13, x_filter); |
| dd7 = convolve8_4x4(s7, s8, s9, s10, s11, s12, s13, s14, x_filter); |
| |
| transpose_s16_4x8(&dd0, &dd1, &dd2, &dd3, &dd4, &dd5, &dd6, &dd7, &d0, |
| &d1, &d2, &d3); |
| |
| d0 = vaddq_s16(d0, horiz_const); |
| d1 = vaddq_s16(d1, horiz_const); |
| d2 = vaddq_s16(d2, horiz_const); |
| d3 = vaddq_s16(d3, horiz_const); |
| |
| // We halved the convolution filter values so -1 from the right shift. |
| d0 = vshrq_n_s16(d0, ROUND0_BITS - 1); |
| d1 = vshrq_n_s16(d1, ROUND0_BITS - 1); |
| d2 = vshrq_n_s16(d2, ROUND0_BITS - 1); |
| d3 = vshrq_n_s16(d3, ROUND0_BITS - 1); |
| |
| store_s16_8x4(d, dst_stride, d0, d1, d2, d3); |
| |
| s0 = s8; |
| s1 = s9; |
| s2 = s10; |
| s3 = s11; |
| s4 = s12; |
| s5 = s13; |
| s6 = s14; |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width > 0); |
| |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| } |
| |
| if (height) { |
| assert(height < 4); |
| horiz_filter_w8_single_row(src_ptr, src_stride, dst_ptr, dst_stride, w, |
| height, x_filter, horiz_const); |
| } |
| |
| #else // !defined(__aarch64__) |
| horiz_filter_w8_single_row(src_ptr, src_stride, dst_ptr, dst_stride, w, |
| height, x_filter, horiz_const); |
| #endif // defined(__aarch64__) |
| } |
| } |
| |
| #endif // defined(__aarch64__) && defined(__ARM_FEATURE_DOTPROD) |
| |
| static INLINE int32x4_t convolve12_vert_4_s32( |
| const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, |
| const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, |
| const int16x4_t s6, const int16x4_t s7, const int16x4_t s8, |
| const int16x4_t s9, const int16x4_t s10, const int16x4_t s11, |
| const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11) { |
| const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); |
| const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); |
| int32x4_t sum; |
| |
| sum = vmull_lane_s16(s0, y_filter_0_3, 0); |
| sum = vmlal_lane_s16(sum, s1, y_filter_0_3, 1); |
| sum = vmlal_lane_s16(sum, s2, y_filter_0_3, 2); |
| sum = vmlal_lane_s16(sum, s3, y_filter_0_3, 3); |
| sum = vmlal_lane_s16(sum, s4, y_filter_4_7, 0); |
| sum = vmlal_lane_s16(sum, s5, y_filter_4_7, 1); |
| sum = vmlal_lane_s16(sum, s6, y_filter_4_7, 2); |
| sum = vmlal_lane_s16(sum, s7, y_filter_4_7, 3); |
| sum = vmlal_lane_s16(sum, s8, y_filter_8_11, 0); |
| sum = vmlal_lane_s16(sum, s9, y_filter_8_11, 1); |
| sum = vmlal_lane_s16(sum, s10, y_filter_8_11, 2); |
| sum = vmlal_lane_s16(sum, s11, y_filter_8_11, 3); |
| |
| return sum; |
| } |
| |
| static INLINE uint8x8_t convolve12_vert_8_s32( |
| const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, |
| const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, |
| const int16x8_t s6, const int16x8_t s7, const int16x8_t s8, |
| const int16x8_t s9, const int16x8_t s10, const int16x8_t s11, |
| const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11, |
| const int16x8_t sub_const) { |
| const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); |
| const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); |
| int32x4_t sum0, sum1; |
| int16x8_t res; |
| |
| sum0 = vmull_lane_s16(vget_low_s16(s0), y_filter_0_3, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_0_3, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_0_3, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_0_3, 3); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_4_7, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_4_7, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), y_filter_4_7, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), y_filter_4_7, 3); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s8), y_filter_8_11, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s9), y_filter_8_11, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s10), y_filter_8_11, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s11), y_filter_8_11, 3); |
| |
| sum1 = vmull_lane_s16(vget_high_s16(s0), y_filter_0_3, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_0_3, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_0_3, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_0_3, 3); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_4_7, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_4_7, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), y_filter_4_7, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), y_filter_4_7, 3); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s8), y_filter_8_11, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s9), y_filter_8_11, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s10), y_filter_8_11, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s11), y_filter_8_11, 3); |
| |
| res = vcombine_s16(vqrshrn_n_s32(sum0, 2 * FILTER_BITS - ROUND0_BITS), |
| vqrshrn_n_s32(sum1, 2 * FILTER_BITS - ROUND0_BITS)); |
| res = vsubq_s16(res, sub_const); |
| |
| return vqmovun_s16(res); |
| } |
| |
| static INLINE void convolve_2d_sr_vert_12tap_neon( |
| int16_t *src_ptr, int src_stride, uint8_t *dst_ptr, int dst_stride, int w, |
| int h, const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11) { |
| const int bd = 8; |
| const int16x8_t sub_const = vdupq_n_s16(1 << (bd - 1)); |
| |
| if (w <= 4) { |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14; |
| int32x4_t d0, d1, d2, d3; |
| int16x8_t dd01, dd23; |
| uint8x8_t d01, d23; |
| |
| load_s16_4x11(src_ptr, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7, |
| &s8, &s9, &s10); |
| src_ptr += 11 * src_stride; |
| |
| do { |
| load_s16_4x4(src_ptr, src_stride, &s11, &s12, &s13, &s14); |
| |
| d0 = convolve12_vert_4_s32(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, y_filter_0_7, y_filter_8_11); |
| d1 = convolve12_vert_4_s32(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| s12, y_filter_0_7, y_filter_8_11); |
| d2 = convolve12_vert_4_s32(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, y_filter_0_7, y_filter_8_11); |
| d3 = convolve12_vert_4_s32(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, |
| s14, y_filter_0_7, y_filter_8_11); |
| |
| dd01 = vcombine_s16(vqrshrn_n_s32(d0, 2 * FILTER_BITS - ROUND0_BITS), |
| vqrshrn_n_s32(d1, 2 * FILTER_BITS - ROUND0_BITS)); |
| dd23 = vcombine_s16(vqrshrn_n_s32(d2, 2 * FILTER_BITS - ROUND0_BITS), |
| vqrshrn_n_s32(d3, 2 * FILTER_BITS - ROUND0_BITS)); |
| |
| dd01 = vsubq_s16(dd01, sub_const); |
| dd23 = vsubq_s16(dd23, sub_const); |
| |
| d01 = vqmovun_s16(dd01); |
| d23 = vqmovun_s16(dd23); |
| |
| if (w == 2) { |
| store_u8_2x1(dst_ptr + 0 * dst_stride, d01, 0); |
| store_u8_2x1(dst_ptr + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(dst_ptr + 2 * dst_stride, d23, 0); |
| store_u8_2x1(dst_ptr + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(dst_ptr + 0 * dst_stride, d01, 0); |
| store_u8_4x1(dst_ptr + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(dst_ptr + 2 * dst_stride, d23, 0); |
| store_u8_4x1(dst_ptr + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| s7 = s11; |
| s8 = s12; |
| s9 = s13; |
| s10 = s14; |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| } while (h > 0); |
| |
| } else { |
| do { |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14; |
| uint8x8_t d0, d1, d2, d3; |
| |
| int16_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| |
| int height = h; |
| |
| load_s16_8x11(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7, &s8, |
| &s9, &s10); |
| s += 11 * src_stride; |
| |
| do { |
| load_s16_8x4(s, src_stride, &s11, &s12, &s13, &s14); |
| |
| d0 = convolve12_vert_8_s32(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, y_filter_0_7, y_filter_8_11, sub_const); |
| d1 = convolve12_vert_8_s32(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| s12, y_filter_0_7, y_filter_8_11, sub_const); |
| d2 = |
| convolve12_vert_8_s32(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, y_filter_0_7, y_filter_8_11, sub_const); |
| d3 = convolve12_vert_8_s32(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, s14, y_filter_0_7, y_filter_8_11, |
| sub_const); |
| |
| if (h != 2) { |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3); |
| } else { |
| store_u8_8x2(d, dst_stride, d0, d1); |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| s7 = s11; |
| s8 = s12; |
| s9 = s13; |
| s10 = s14; |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| } while (height > 0); |
| |
| src_ptr += 8; |
| dst_ptr += 8; |
| w -= 8; |
| } while (w > 0); |
| } |
| } |
| |
| static INLINE void convolve_2d_sr_vert_8tap_neon(int16_t *src_ptr, |
| int src_stride, |
| uint8_t *dst_ptr, |
| int dst_stride, int w, int h, |
| const int16x8_t y_filter) { |
| const int bd = 8; |
| const int16x8_t sub_const = vdupq_n_s16(1 << (bd - 1)); |
| |
| if (w <= 4) { |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0; |
| uint8x8_t d01; |
| |
| #if defined(__aarch64__) |
| int16x4_t s8, s9, s10, d1, d2, d3; |
| uint8x8_t d23; |
| #endif // defined(__aarch64__) |
| |
| int16_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| |
| load_s16_4x7(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); |
| s += 7 * src_stride; |
| |
| do { |
| #if defined(__aarch64__) |
| load_s16_4x4(s, src_stride, &s7, &s8, &s9, &s10); |
| |
| d0 = convolve8_vert_4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| d1 = convolve8_vert_4_s32(s1, s2, s3, s4, s5, s6, s7, s8, y_filter); |
| d2 = convolve8_vert_4_s32(s2, s3, s4, s5, s6, s7, s8, s9, y_filter); |
| d3 = convolve8_vert_4_s32(s3, s4, s5, s6, s7, s8, s9, s10, y_filter); |
| |
| d01 = vqmovun_s16(vsubq_s16(vcombine_s16(d0, d1), sub_const)); |
| d23 = vqmovun_s16(vsubq_s16(vcombine_s16(d2, d3), sub_const)); |
| |
| if (w == 2) { |
| store_u8_2x1(d + 0 * dst_stride, d01, 0); |
| store_u8_2x1(d + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(d + 2 * dst_stride, d23, 0); |
| store_u8_2x1(d + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(d + 0 * dst_stride, d01, 0); |
| store_u8_4x1(d + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(d + 2 * dst_stride, d23, 0); |
| store_u8_4x1(d + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| h -= 4; |
| #else // !defined(__aarch64__) |
| s7 = vld1_s16(s); |
| s += src_stride; |
| |
| d0 = convolve8_vert_4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| |
| d01 = vqmovun_s16(vsubq_s16(vcombine_s16(d0, vdup_n_s16(0)), sub_const)); |
| |
| if (w == 2) { |
| store_u8_2x1(d, d01, 0); |
| } else { |
| store_u8_4x1(d, d01, 0); |
| } |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s5 = s6; |
| s6 = s7; |
| d += dst_stride; |
| h--; |
| #endif // defined(__aarch64__) |
| } while (h > 0); |
| } else { |
| // if width is a multiple of 8 & height is a multiple of 4 |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; |
| uint8x8_t d0; |
| #if defined(__aarch64__) |
| int16x8_t s8, s9, s10; |
| uint8x8_t d1, d2, d3; |
| #endif // defined(__aarch64__) |
| |
| do { |
| int height = h; |
| int16_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| |
| load_s16_8x7(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); |
| s += 7 * src_stride; |
| |
| do { |
| #if defined(__aarch64__) |
| load_s16_8x4(s, src_stride, &s7, &s8, &s9, &s10); |
| |
| d0 = convolve8_vert_8_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, |
| sub_const); |
| d1 = convolve8_vert_8_s32(s1, s2, s3, s4, s5, s6, s7, s8, y_filter, |
| sub_const); |
| d2 = convolve8_vert_8_s32(s2, s3, s4, s5, s6, s7, s8, s9, y_filter, |
| sub_const); |
| d3 = convolve8_vert_8_s32(s3, s4, s5, s6, s7, s8, s9, s10, y_filter, |
| sub_const); |
| |
| if (h != 2) { |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3); |
| } else { |
| store_u8_8x2(d, dst_stride, d0, d1); |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| #else // !defined(__aarch64__) |
| s7 = vld1q_s16(s); |
| |
| d0 = convolve8_vert_8_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, |
| sub_const); |
| |
| vst1_u8(d, d0); |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s5 = s6; |
| s6 = s7; |
| s += src_stride; |
| d += dst_stride; |
| height--; |
| #endif // defined(__aarch64__) |
| } while (height > 0); |
| |
| src_ptr += 8; |
| dst_ptr += 8; |
| w -= 8; |
| } while (w > 0); |
| } |
| } |
| |
| static INLINE int16x4_t |
| convolve6_vert_4_s32(const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, |
| const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, |
| const int16x8_t y_filter) { |
| const int16x4_t y_filter_lo = vget_low_s16(y_filter); |
| const int16x4_t y_filter_hi = vget_high_s16(y_filter); |
| int32x4_t sum; |
| |
| sum = vmull_lane_s16(s0, y_filter_lo, 1); |
| sum = vmlal_lane_s16(sum, s1, y_filter_lo, 2); |
| sum = vmlal_lane_s16(sum, s2, y_filter_lo, 3); |
| sum = vmlal_lane_s16(sum, s3, y_filter_hi, 0); |
| sum = vmlal_lane_s16(sum, s4, y_filter_hi, 1); |
| sum = vmlal_lane_s16(sum, s5, y_filter_hi, 2); |
| |
| return vqrshrn_n_s32(sum, 2 * FILTER_BITS - ROUND0_BITS); |
| } |
| |
| static INLINE uint8x8_t |
| convolve6_vert_8_s32(const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, |
| const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, |
| const int16x8_t y_filter, const int16x8_t sub_const) { |
| const int16x4_t y_filter_lo = vget_low_s16(y_filter); |
| const int16x4_t y_filter_hi = vget_high_s16(y_filter); |
| int32x4_t sum0, sum1; |
| int16x8_t res; |
| |
| sum0 = vmull_lane_s16(vget_low_s16(s0), y_filter_lo, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_lo, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_lo, 3); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_hi, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_hi, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_hi, 2); |
| |
| sum1 = vmull_lane_s16(vget_high_s16(s0), y_filter_lo, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_lo, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_lo, 3); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_hi, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_hi, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_hi, 2); |
| |
| res = vcombine_s16(vqrshrn_n_s32(sum0, 2 * FILTER_BITS - ROUND0_BITS), |
| vqrshrn_n_s32(sum1, 2 * FILTER_BITS - ROUND0_BITS)); |
| res = vsubq_s16(res, sub_const); |
| |
| return vqmovun_s16(res); |
| } |
| |
| static INLINE void convolve_2d_sr_vert_6tap_neon(int16_t *src_ptr, |
| int src_stride, |
| uint8_t *dst_ptr, |
| int dst_stride, int w, int h, |
| const int16x8_t y_filter) { |
| const int bd = 8; |
| const int16x8_t sub_const = vdupq_n_s16(1 << (bd - 1)); |
| |
| if (w <= 4) { |
| int16x4_t s0, s1, s2, s3, s4, s5, d0; |
| uint8x8_t d01; |
| |
| #if defined(__aarch64__) |
| int16x4_t s6, s7, s8, d1, d2, d3; |
| uint8x8_t d23; |
| #endif // defined(__aarch64__) |
| |
| int16_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| |
| load_s16_4x5(s, src_stride, &s0, &s1, &s2, &s3, &s4); |
| s += 5 * src_stride; |
| |
| do { |
| #if defined(__aarch64__) |
| load_s16_4x4(s, src_stride, &s5, &s6, &s7, &s8); |
| |
| d0 = convolve6_vert_4_s32(s0, s1, s2, s3, s4, s5, y_filter); |
| d1 = convolve6_vert_4_s32(s1, s2, s3, s4, s5, s6, y_filter); |
| d2 = convolve6_vert_4_s32(s2, s3, s4, s5, s6, s7, y_filter); |
| d3 = convolve6_vert_4_s32(s3, s4, s5, s6, s7, s8, y_filter); |
| |
| d01 = vqmovun_s16(vsubq_s16(vcombine_s16(d0, d1), sub_const)); |
| d23 = vqmovun_s16(vsubq_s16(vcombine_s16(d2, d3), sub_const)); |
| |
| if (w == 2) { |
| store_u8_2x1(d + 0 * dst_stride, d01, 0); |
| store_u8_2x1(d + 1 * dst_stride, d01, 2); |
| if (h != 2) { |
| store_u8_2x1(d + 2 * dst_stride, d23, 0); |
| store_u8_2x1(d + 3 * dst_stride, d23, 2); |
| } |
| } else { |
| store_u8_4x1(d + 0 * dst_stride, d01, 0); |
| store_u8_4x1(d + 1 * dst_stride, d01, 1); |
| if (h != 2) { |
| store_u8_4x1(d + 2 * dst_stride, d23, 0); |
| store_u8_4x1(d + 3 * dst_stride, d23, 1); |
| } |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| h -= 4; |
| #else // !defined(__aarch64__) |
| s5 = vld1_s16(s); |
| |
| d0 = convolve6_vert_4_s32(s0, s1, s2, s3, s4, s5, y_filter); |
| d01 = vqmovun_s16(vsubq_s16(vcombine_s16(d0, vdup_n_s16(0)), sub_const)); |
| |
| if (w == 2) { |
| store_u8_2x1(d, d01, 0); |
| } else { |
| store_u8_4x1(d, d01, 0); |
| } |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s += src_stride; |
| d += dst_stride; |
| h--; |
| #endif // defined(__aarch64__) |
| } while (h > 0); |
| } else { |
| // if width is a multiple of 8 & height is a multiple of 4 |
| int16x8_t s0, s1, s2, s3, s4, s5; |
| uint8x8_t d0; |
| #if defined(__aarch64__) |
| int16x8_t s6, s7, s8; |
| uint8x8_t d1, d2, d3; |
| #endif // defined(__aarch64__) |
| |
| do { |
| int height = h; |
| int16_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| |
| load_s16_8x5(s, src_stride, &s0, &s1, &s2, &s3, &s4); |
| s += 5 * src_stride; |
| |
| do { |
| #if defined(__aarch64__) |
| load_s16_8x4(s, src_stride, &s5, &s6, &s7, &s8); |
| |
| d0 = convolve6_vert_8_s32(s0, s1, s2, s3, s4, s5, y_filter, sub_const); |
| d1 = convolve6_vert_8_s32(s1, s2, s3, s4, s5, s6, y_filter, sub_const); |
| d2 = convolve6_vert_8_s32(s2, s3, s4, s5, s6, s7, y_filter, sub_const); |
| d3 = convolve6_vert_8_s32(s3, s4, s5, s6, s7, s8, y_filter, sub_const); |
| |
| if (h != 2) { |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3); |
| } else { |
| store_u8_8x2(d, dst_stride, d0, d1); |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| #else // !defined(__aarch64__) |
| s5 = vld1q_s16(s); |
| |
| d0 = convolve6_vert_8_s32(s0, s1, s2, s3, s4, s5, y_filter, sub_const); |
| |
| vst1_u8(d, d0); |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s += src_stride; |
| d += dst_stride; |
| height--; |
| #endif // defined(__aarch64__) |
| } while (height > 0); |
| |
| src_ptr += 8; |
| dst_ptr += 8; |
| w -= 8; |
| } while (w > 0); |
| } |
| } |
| |
| void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const InterpFilterParams *filter_params_y, |
| const int subpel_x_qn, const int subpel_y_qn, |
| ConvolveParams *conv_params) { |
| (void)conv_params; |
| const int y_filter_taps = get_filter_tap(filter_params_y, subpel_y_qn); |
| const int clamped_y_taps = y_filter_taps < 6 ? 6 : y_filter_taps; |
| const int im_h = h + clamped_y_taps - 1; |
| const int im_stride = MAX_SB_SIZE; |
| const int vert_offset = clamped_y_taps / 2 - 1; |
| const int horiz_offset = filter_params_x->taps / 2 - 1; |
| const uint8_t *src_ptr = src - vert_offset * src_stride - horiz_offset; |
| |
| const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| const int16_t *y_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_y, subpel_y_qn & SUBPEL_MASK); |
| |
| if (filter_params_x->taps > 8) { |
| DECLARE_ALIGNED(16, int16_t, |
| im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]); |
| |
| const int16x8_t x_filter_0_7 = vld1q_s16(x_filter_ptr); |
| const int16x4_t x_filter_8_11 = vld1_s16(x_filter_ptr + 8); |
| const int16x8_t y_filter_0_7 = vld1q_s16(y_filter_ptr); |
| const int16x4_t y_filter_8_11 = vld1_s16(y_filter_ptr + 8); |
| |
| convolve_2d_sr_horiz_12tap_neon(src_ptr, src_stride, im_block, im_stride, w, |
| im_h, x_filter_0_7, x_filter_8_11); |
| |
| convolve_2d_sr_vert_12tap_neon(im_block, im_stride, dst, dst_stride, w, h, |
| y_filter_0_7, y_filter_8_11); |
| } else { |
| DECLARE_ALIGNED(16, int16_t, |
| im_block[(MAX_SB_SIZE + HORIZ_EXTRA_ROWS) * MAX_SB_SIZE]); |
| |
| const int16x8_t x_filter = vld1q_s16(x_filter_ptr); |
| const int16x8_t y_filter = vld1q_s16(y_filter_ptr); |
| |
| convolve_2d_sr_horiz_8tap_neon(src_ptr, src_stride, im_block, im_stride, w, |
| im_h, x_filter); |
| |
| if (clamped_y_taps <= 6) { |
| convolve_2d_sr_vert_6tap_neon(im_block, im_stride, dst, dst_stride, w, h, |
| y_filter); |
| } else { |
| convolve_2d_sr_vert_8tap_neon(im_block, im_stride, dst, dst_stride, w, h, |
| y_filter); |
| } |
| } |
| } |
| |
| static INLINE void scaledconvolve_horiz_w4( |
| const uint8_t *src, const ptrdiff_t src_stride, uint8_t *dst, |
| const ptrdiff_t dst_stride, const InterpKernel *const x_filters, |
| const int x0_q4, const int x_step_q4, const int w, const int h) { |
| DECLARE_ALIGNED(16, uint8_t, temp[4 * 4]); |
| int x, y, z; |
| |
| src -= SUBPEL_TAPS / 2 - 1; |
| |
| y = h; |
| do { |
| int x_q4 = x0_q4; |
| x = 0; |
| do { |
| // process 4 src_x steps |
| for (z = 0; z < 4; ++z) { |
| const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; |
| if (x_q4 & SUBPEL_MASK) { |
| const int16x8_t filters = vld1q_s16(x_filters[x_q4 & SUBPEL_MASK]); |
| uint8x8_t s[8], d; |
| int16x8_t ss[4]; |
| int16x4_t t[8], tt; |
| |
| load_u8_8x4(src_x, src_stride, &s[0], &s[1], &s[2], &s[3]); |
| transpose_u8_8x4(&s[0], &s[1], &s[2], &s[3]); |
| |
| ss[0] = vreinterpretq_s16_u16(vmovl_u8(s[0])); |
| ss[1] = vreinterpretq_s16_u16(vmovl_u8(s[1])); |
| ss[2] = vreinterpretq_s16_u16(vmovl_u8(s[2])); |
| ss[3] = vreinterpretq_s16_u16(vmovl_u8(s[3])); |
| t[0] = vget_low_s16(ss[0]); |
| t[1] = vget_low_s16(ss[1]); |
| t[2] = vget_low_s16(ss[2]); |
| t[3] = vget_low_s16(ss[3]); |
| t[4] = vget_high_s16(ss[0]); |
| t[5] = vget_high_s16(ss[1]); |
| t[6] = vget_high_s16(ss[2]); |
| t[7] = vget_high_s16(ss[3]); |
| |
| tt = convolve8_4(t[0], t[1], t[2], t[3], t[4], t[5], t[6], t[7], |
| filters); |
| d = vqrshrun_n_s16(vcombine_s16(tt, tt), 7); |
| store_u8_4x1(&temp[4 * z], d, 0); |
| } else { |
| int i; |
| for (i = 0; i < 4; ++i) { |
| temp[z * 4 + i] = src_x[i * src_stride + 3]; |
| } |
| } |
| x_q4 += x_step_q4; |
| } |
| |
| // transpose the 4x4 filters values back to dst |
| { |
| const uint8x8x4_t d4 = vld4_u8(temp); |
| store_u8_4x1(&dst[x + 0 * dst_stride], d4.val[0], 0); |
| store_u8_4x1(&dst[x + 1 * dst_stride], d4.val[1], 0); |
| store_u8_4x1(&dst[x + 2 * dst_stride], d4.val[2], 0); |
| store_u8_4x1(&dst[x + 3 * dst_stride], d4.val[3], 0); |
| } |
| x += 4; |
| } while (x < w); |
| |
| src += src_stride * 4; |
| dst += dst_stride * 4; |
| y -= 4; |
| } while (y > 0); |
| } |
| |
| static INLINE void scaledconvolve_horiz_w8( |
| const uint8_t *src, const ptrdiff_t src_stride, uint8_t *dst, |
| const ptrdiff_t dst_stride, const InterpKernel *const x_filters, |
| const int x0_q4, const int x_step_q4, const int w, const int h) { |
| DECLARE_ALIGNED(16, uint8_t, temp[8 * 8]); |
| int x, y, z; |
| src -= SUBPEL_TAPS / 2 - 1; |
| |
| // This function processes 8x8 areas. The intermediate height is not always |
| // a multiple of 8, so force it to be a multiple of 8 here. |
| y = (h + 7) & ~7; |
| |
| do { |
| int x_q4 = x0_q4; |
| x = 0; |
| do { |
| uint8x8_t d[8]; |
| // process 8 src_x steps |
| for (z = 0; z < 8; ++z) { |
| const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; |
| |
| if (x_q4 & SUBPEL_MASK) { |
| const int16x8_t filters = vld1q_s16(x_filters[x_q4 & SUBPEL_MASK]); |
| uint8x8_t s[8]; |
| load_u8_8x8(src_x, src_stride, &s[0], &s[1], &s[2], &s[3], &s[4], |
| &s[5], &s[6], &s[7]); |
| transpose_u8_8x8(&s[0], &s[1], &s[2], &s[3], &s[4], &s[5], &s[6], |
| &s[7]); |
| d[0] = scale_filter_8(s, filters); |
| vst1_u8(&temp[8 * z], d[0]); |
| } else { |
| int i; |
| for (i = 0; i < 8; ++i) { |
| temp[z * 8 + i] = src_x[i * src_stride + 3]; |
| } |
| } |
| x_q4 += x_step_q4; |
| } |
| |
| // transpose the 8x8 filters values back to dst |
| load_u8_8x8(temp, 8, &d[0], &d[1], &d[2], &d[3], &d[4], &d[5], &d[6], |
| &d[7]); |
| transpose_u8_8x8(&d[0], &d[1], &d[2], &d[3], &d[4], &d[5], &d[6], &d[7]); |
| store_u8_8x8(dst + x, dst_stride, d[0], d[1], d[2], d[3], d[4], d[5], |
| d[6], d[7]); |
| x += 8; |
| } while (x < w); |
| |
| src += src_stride * 8; |
| dst += dst_stride * 8; |
| } while (y -= 8); |
| } |
| |
| static INLINE void scaledconvolve_vert_w4( |
| const uint8_t *src, const ptrdiff_t src_stride, uint8_t *dst, |
| const ptrdiff_t dst_stride, const InterpKernel *const y_filters, |
| const int y0_q4, const int y_step_q4, const int w, const int h) { |
| int y; |
| int y_q4 = y0_q4; |
| |
| src -= src_stride * (SUBPEL_TAPS / 2 - 1); |
| y = h; |
| do { |
| const unsigned char *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; |
| |
| if (y_q4 & SUBPEL_MASK) { |
| const int16x8_t filters = vld1q_s16(y_filters[y_q4 & SUBPEL_MASK]); |
| uint8x8_t s[8], d; |
| int16x4_t t[8], tt; |
| |
| load_u8_8x8(src_y, src_stride, &s[0], &s[1], &s[2], &s[3], &s[4], &s[5], |
| &s[6], &s[7]); |
| t[0] = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(s[0]))); |
| t[1] = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(s[1]))); |
| t[2] = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(s[2]))); |
| t[3] = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(s[3]))); |
| t[4] = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(s[4]))); |
| t[5] = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(s[5]))); |
| t[6] = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(s[6]))); |
| t[7] = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(s[7]))); |
| |
| tt = convolve8_4(t[0], t[1], t[2], t[3], t[4], t[5], t[6], t[7], filters); |
| d = vqrshrun_n_s16(vcombine_s16(tt, tt), 7); |
| store_u8_4x1(dst, d, 0); |
| } else { |
| memcpy(dst, &src_y[3 * src_stride], w); |
| } |
| |
| dst += dst_stride; |
| y_q4 += y_step_q4; |
| } while (--y); |
| } |
| |
| static INLINE void scaledconvolve_vert_w8( |
| const uint8_t *src, const ptrdiff_t src_stride, uint8_t *dst, |
| const ptrdiff_t dst_stride, const InterpKernel *const y_filters, |
| const int y0_q4, const int y_step_q4, const int w, const int h) { |
| int y; |
| int y_q4 = y0_q4; |
| |
| src -= src_stride * (SUBPEL_TAPS / 2 - 1); |
| y = h; |
| do { |
| const unsigned char *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; |
| if (y_q4 & SUBPEL_MASK) { |
| const int16x8_t filters = vld1q_s16(y_filters[y_q4 & SUBPEL_MASK]); |
| uint8x8_t s[8], d; |
| load_u8_8x8(src_y, src_stride, &s[0], &s[1], &s[2], &s[3], &s[4], &s[5], |
| &s[6], &s[7]); |
| d = scale_filter_8(s, filters); |
| vst1_u8(dst, d); |
| } else { |
| memcpy(dst, &src_y[3 * src_stride], w); |
| } |
| dst += dst_stride; |
| y_q4 += y_step_q4; |
| } while (--y); |
| } |
| |
| static INLINE void scaledconvolve_vert_w16( |
| const uint8_t *src, const ptrdiff_t src_stride, uint8_t *dst, |
| const ptrdiff_t dst_stride, const InterpKernel *const y_filters, |
| const int y0_q4, const int y_step_q4, const int w, const int h) { |
| int x, y; |
| int y_q4 = y0_q4; |
| |
| src -= src_stride * (SUBPEL_TAPS / 2 - 1); |
| y = h; |
| do { |
| const unsigned char *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; |
| if (y_q4 & SUBPEL_MASK) { |
| x = 0; |
| do { |
| const int16x8_t filters = vld1q_s16(y_filters[y_q4 & SUBPEL_MASK]); |
| uint8x16_t ss[8]; |
| uint8x8_t s[8], d[2]; |
| load_u8_16x8(src_y, src_stride, &ss[0], &ss[1], &ss[2], &ss[3], &ss[4], |
| &ss[5], &ss[6], &ss[7]); |
| s[0] = vget_low_u8(ss[0]); |
| s[1] = vget_low_u8(ss[1]); |
| s[2] = vget_low_u8(ss[2]); |
| s[3] = vget_low_u8(ss[3]); |
| s[4] = vget_low_u8(ss[4]); |
| s[5] = vget_low_u8(ss[5]); |
| s[6] = vget_low_u8(ss[6]); |
| s[7] = vget_low_u8(ss[7]); |
| d[0] = scale_filter_8(s, filters); |
| |
| s[0] = vget_high_u8(ss[0]); |
| s[1] = vget_high_u8(ss[1]); |
| s[2] = vget_high_u8(ss[2]); |
| s[3] = vget_high_u8(ss[3]); |
| s[4] = vget_high_u8(ss[4]); |
| s[5] = vget_high_u8(ss[5]); |
| s[6] = vget_high_u8(ss[6]); |
| s[7] = vget_high_u8(ss[7]); |
| d[1] = scale_filter_8(s, filters); |
| vst1q_u8(&dst[x], vcombine_u8(d[0], d[1])); |
| src_y += 16; |
| x += 16; |
| } while (x < w); |
| } else { |
| memcpy(dst, &src_y[3 * src_stride], w); |
| } |
| dst += dst_stride; |
| y_q4 += y_step_q4; |
| } while (--y); |
| } |
| |
| void aom_scaled_2d_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) { |
| // Note: Fixed size intermediate buffer, temp, places limits on parameters. |
| // 2d filtering proceeds in 2 steps: |
| // (1) Interpolate horizontally into an intermediate buffer, temp. |
| // (2) Interpolate temp vertically to derive the sub-pixel result. |
| // Deriving the maximum number of rows in the temp buffer (135): |
| // --Smallest scaling factor is x1/2 ==> y_step_q4 = 32 (Normative). |
| // --Largest block size is 64x64 pixels. |
| // --64 rows in the downscaled frame span a distance of (64 - 1) * 32 in the |
| // original frame (in 1/16th pixel units). |
| // --Must round-up because block may be located at sub-pixel position. |
| // --Require an additional SUBPEL_TAPS rows for the 8-tap filter tails. |
| // --((64 - 1) * 32 + 15) >> 4 + 8 = 135. |
| // --Require an additional 8 rows for the horiz_w8 transpose tail. |
| // When calling in frame scaling function, the smallest scaling factor is x1/4 |
| // ==> y_step_q4 = 64. Since w and h are at most 16, the temp buffer is still |
| // big enough. |
| DECLARE_ALIGNED(16, uint8_t, temp[(135 + 8) * 64]); |
| const int intermediate_height = |
| (((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS; |
| |
| assert(w <= 64); |
| assert(h <= 64); |
| assert(y_step_q4 <= 32 || (y_step_q4 <= 64 && h <= 32)); |
| assert(x_step_q4 <= 64); |
| |
| if (w >= 8) { |
| scaledconvolve_horiz_w8(src - src_stride * (SUBPEL_TAPS / 2 - 1), |
| src_stride, temp, 64, filter, x0_q4, x_step_q4, w, |
| intermediate_height); |
| } else { |
| scaledconvolve_horiz_w4(src - src_stride * (SUBPEL_TAPS / 2 - 1), |
| src_stride, temp, 64, filter, x0_q4, x_step_q4, w, |
| intermediate_height); |
| } |
| |
| if (w >= 16) { |
| scaledconvolve_vert_w16(temp + 64 * (SUBPEL_TAPS / 2 - 1), 64, dst, |
| dst_stride, filter, y0_q4, y_step_q4, w, h); |
| } else if (w == 8) { |
| scaledconvolve_vert_w8(temp + 64 * (SUBPEL_TAPS / 2 - 1), 64, dst, |
| dst_stride, filter, y0_q4, y_step_q4, w, h); |
| } else { |
| scaledconvolve_vert_w4(temp + 64 * (SUBPEL_TAPS / 2 - 1), 64, dst, |
| dst_stride, filter, y0_q4, y_step_q4, w, h); |
| } |
| } |
