| /* |
| * |
| * 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_ports/mem.h" |
| #include "av1/common/convolve.h" |
| #include "av1/common/filter.h" |
| #include "av1/common/arm/convolve_neon.h" |
| #include "av1/common/arm/mem_neon.h" |
| #include "av1/common/arm/transpose_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 int16_t *filter) { |
| int16x4_t sum; |
| |
| sum = vmul_n_s16(s0, filter[0]); |
| sum = vmla_n_s16(sum, s1, filter[1]); |
| sum = vmla_n_s16(sum, s2, filter[2]); |
| sum = vmla_n_s16(sum, s5, filter[5]); |
| sum = vmla_n_s16(sum, s6, filter[6]); |
| sum = vmla_n_s16(sum, s7, filter[7]); |
| /* filter[3] can take a max value of 128. So the max value of the result : |
| * 128*255 + sum > 16 bits |
| */ |
| sum = vqadd_s16(sum, vmul_n_s16(s3, filter[3])); |
| sum = vqadd_s16(sum, vmul_n_s16(s4, filter[4])); |
| |
| return sum; |
| } |
| |
| 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 int16_t *filter, |
| const int16x8_t shift_round_0, const int16x8_t shift_by_bits) { |
| int16x8_t sum; |
| |
| sum = vmulq_n_s16(s0, filter[0]); |
| sum = vmlaq_n_s16(sum, s1, filter[1]); |
| sum = vmlaq_n_s16(sum, s2, filter[2]); |
| sum = vmlaq_n_s16(sum, s5, filter[5]); |
| sum = vmlaq_n_s16(sum, s6, filter[6]); |
| sum = vmlaq_n_s16(sum, s7, filter[7]); |
| /* filter[3] can take a max value of 128. So the max value of the result : |
| * 128*255 + sum > 16 bits |
| */ |
| sum = vqaddq_s16(sum, vmulq_n_s16(s3, filter[3])); |
| sum = vqaddq_s16(sum, vmulq_n_s16(s4, filter[4])); |
| |
| sum = vqrshlq_s16(sum, shift_round_0); |
| sum = vqrshlq_s16(sum, shift_by_bits); |
| |
| return vqmovun_s16(sum); |
| } |
| |
| #if !defined(__aarch64__) |
| static INLINE uint8x8_t convolve8_horiz_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 int16_t *filter, |
| const int16x4_t shift_round_0, const int16x4_t shift_by_bits) { |
| int16x4_t sum; |
| |
| sum = vmul_n_s16(s0, filter[0]); |
| sum = vmla_n_s16(sum, s1, filter[1]); |
| sum = vmla_n_s16(sum, s2, filter[2]); |
| sum = vmla_n_s16(sum, s5, filter[5]); |
| sum = vmla_n_s16(sum, s6, filter[6]); |
| sum = vmla_n_s16(sum, s7, filter[7]); |
| /* filter[3] can take a max value of 128. So the max value of the result : |
| * 128*255 + sum > 16 bits |
| */ |
| sum = vqadd_s16(sum, vmul_n_s16(s3, filter[3])); |
| sum = vqadd_s16(sum, vmul_n_s16(s4, filter[4])); |
| |
| sum = vqrshl_s16(sum, shift_round_0); |
| sum = vqrshl_s16(sum, shift_by_bits); |
| |
| return vqmovun_s16(vcombine_s16(sum, sum)); |
| } |
| #endif // !defined(__arch64__) |
| |
| 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 int16_t *filter) { |
| int16x8_t sum; |
| |
| sum = vmulq_n_s16(s0, filter[0]); |
| sum = vmlaq_n_s16(sum, s1, filter[1]); |
| sum = vmlaq_n_s16(sum, s2, filter[2]); |
| sum = vmlaq_n_s16(sum, s5, filter[5]); |
| sum = vmlaq_n_s16(sum, s6, filter[6]); |
| sum = vmlaq_n_s16(sum, s7, filter[7]); |
| /* filter[3] can take a max value of 128. So the max value of the result : |
| * 128*255 + sum > 16 bits |
| */ |
| sum = vqaddq_s16(sum, vmulq_n_s16(s3, filter[3])); |
| sum = vqaddq_s16(sum, vmulq_n_s16(s4, filter[4])); |
| |
| return vqrshrun_n_s16(sum, FILTER_BITS); |
| } |
| |
| static INLINE uint16x4_t convolve8_vert_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 int16_t *y_filter, |
| const int32x4_t round_shift_vec, const int32x4_t offset_const, |
| const int32x4_t sub_const_vec) { |
| int32x4_t sum0; |
| uint16x4_t res; |
| const int32x4_t zero = vdupq_n_s32(0); |
| |
| sum0 = vmull_n_s16(s0, y_filter[0]); |
| sum0 = vmlal_n_s16(sum0, s1, y_filter[1]); |
| sum0 = vmlal_n_s16(sum0, s2, y_filter[2]); |
| sum0 = vmlal_n_s16(sum0, s3, y_filter[3]); |
| sum0 = vmlal_n_s16(sum0, s4, y_filter[4]); |
| sum0 = vmlal_n_s16(sum0, s5, y_filter[5]); |
| sum0 = vmlal_n_s16(sum0, s6, y_filter[6]); |
| sum0 = vmlal_n_s16(sum0, s7, y_filter[7]); |
| |
| sum0 = vaddq_s32(sum0, offset_const); |
| sum0 = vqrshlq_s32(sum0, round_shift_vec); |
| sum0 = vsubq_s32(sum0, sub_const_vec); |
| sum0 = vmaxq_s32(sum0, zero); |
| |
| res = vmovn_u32(vreinterpretq_u32_s32(sum0)); |
| |
| return res; |
| } |
| |
| static INLINE uint8x8_t convolve8_vert_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 int16_t *y_filter, |
| const int32x4_t round_shift_vec, const int32x4_t offset_const, |
| const int32x4_t sub_const_vec, const int16x8_t vec_round_bits) { |
| int32x4_t sum0, sum1; |
| uint16x8_t res; |
| const int32x4_t zero = vdupq_n_s32(0); |
| |
| sum0 = vmull_n_s16(vget_low_s16(s0), y_filter[0]); |
| sum0 = vmlal_n_s16(sum0, vget_low_s16(s1), y_filter[1]); |
| sum0 = vmlal_n_s16(sum0, vget_low_s16(s2), y_filter[2]); |
| sum0 = vmlal_n_s16(sum0, vget_low_s16(s3), y_filter[3]); |
| sum0 = vmlal_n_s16(sum0, vget_low_s16(s4), y_filter[4]); |
| sum0 = vmlal_n_s16(sum0, vget_low_s16(s5), y_filter[5]); |
| sum0 = vmlal_n_s16(sum0, vget_low_s16(s6), y_filter[6]); |
| sum0 = vmlal_n_s16(sum0, vget_low_s16(s7), y_filter[7]); |
| |
| sum1 = vmull_n_s16(vget_high_s16(s0), y_filter[0]); |
| sum1 = vmlal_n_s16(sum1, vget_high_s16(s1), y_filter[1]); |
| sum1 = vmlal_n_s16(sum1, vget_high_s16(s2), y_filter[2]); |
| sum1 = vmlal_n_s16(sum1, vget_high_s16(s3), y_filter[3]); |
| sum1 = vmlal_n_s16(sum1, vget_high_s16(s4), y_filter[4]); |
| sum1 = vmlal_n_s16(sum1, vget_high_s16(s5), y_filter[5]); |
| sum1 = vmlal_n_s16(sum1, vget_high_s16(s6), y_filter[6]); |
| sum1 = vmlal_n_s16(sum1, vget_high_s16(s7), y_filter[7]); |
| |
| sum0 = vaddq_s32(sum0, offset_const); |
| sum1 = vaddq_s32(sum1, offset_const); |
| sum0 = vqrshlq_s32(sum0, round_shift_vec); |
| sum1 = vqrshlq_s32(sum1, round_shift_vec); |
| sum0 = vsubq_s32(sum0, sub_const_vec); |
| sum1 = vsubq_s32(sum1, sub_const_vec); |
| sum0 = vmaxq_s32(sum0, zero); |
| sum1 = vmaxq_s32(sum1, zero); |
| res = vcombine_u16(vqmovn_u32(vreinterpretq_u32_s32(sum0)), |
| vqmovn_u32(vreinterpretq_u32_s32(sum1))); |
| |
| res = vqrshlq_u16(res, vec_round_bits); |
| |
| return vqmovn_u16(res); |
| } |
| |
| 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) { |
| if (filter_params_x->taps > 8) { |
| av1_convolve_x_sr_c(src, src_stride, dst, dst_stride, w, h, filter_params_x, |
| subpel_x_qn, conv_params); |
| return; |
| } |
| const uint8_t horiz_offset = filter_params_x->taps / 2 - 1; |
| const int8_t bits = FILTER_BITS - conv_params->round_0; |
| |
| uint8x8_t t0; |
| #if defined(__aarch64__) |
| uint8x8_t t1, t2, t3; |
| #endif |
| |
| assert(bits >= 0); |
| assert((FILTER_BITS - conv_params->round_1) >= 0 || |
| ((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS)); |
| |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| |
| const int16x8_t shift_round_0 = vdupq_n_s16(-conv_params->round_0); |
| const int16x8_t shift_by_bits = vdupq_n_s16(-bits); |
| |
| src -= horiz_offset; |
| #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 = vqrshlq_s16(vcombine_s16(d0, d1), shift_round_0); |
| d23_temp = vqrshlq_s16(vcombine_s16(d2, d3), shift_round_0); |
| |
| d01_temp = vqrshlq_s16(d01_temp, shift_by_bits); |
| d23_temp = vqrshlq_s16(d23_temp, shift_by_bits); |
| |
| d01 = vqmovun_s16(d01_temp); |
| d23 = vqmovun_s16(d23_temp); |
| |
| transpose_u8_4x4(&d01, &d23); |
| |
| if (w != 2) { |
| vst1_lane_u32((uint32_t *)(dst + 0 * dst_stride), // 00 01 02 03 |
| vreinterpret_u32_u8(d01), 0); |
| vst1_lane_u32((uint32_t *)(dst + 1 * dst_stride), // 10 11 12 13 |
| vreinterpret_u32_u8(d23), 0); |
| vst1_lane_u32((uint32_t *)(dst + 2 * dst_stride), // 20 21 22 23 |
| vreinterpret_u32_u8(d01), 1); |
| vst1_lane_u32((uint32_t *)(dst + 3 * dst_stride), // 30 31 32 33 |
| vreinterpret_u32_u8(d23), 1); |
| } else { |
| vst1_lane_u16((uint16_t *)(dst + 0 * dst_stride), // 00 01 |
| vreinterpret_u16_u8(d01), 0); |
| vst1_lane_u16((uint16_t *)(dst + 1 * dst_stride), // 10 11 |
| vreinterpret_u16_u8(d23), 0); |
| vst1_lane_u16((uint16_t *)(dst + 2 * dst_stride), // 20 21 |
| vreinterpret_u16_u8(d01), 2); |
| vst1_lane_u16((uint16_t *)(dst + 3 * dst_stride), // 30 31 |
| vreinterpret_u16_u8(d23), 2); |
| } |
| |
| 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, |
| shift_round_0, shift_by_bits); |
| t1 = convolve8_horiz_8x8(s1, s2, s3, s4, s5, s6, s7, s8, x_filter, |
| shift_round_0, shift_by_bits); |
| t2 = convolve8_horiz_8x8(s2, s3, s4, s5, s6, s7, s8, s9, x_filter, |
| shift_round_0, shift_by_bits); |
| t3 = convolve8_horiz_8x8(s3, s4, s5, s6, s7, s8, s9, s10, x_filter, |
| shift_round_0, shift_by_bits); |
| |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| if ((w == 4) && (h > 4)) { |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0), |
| 0); // 00 01 02 03 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t1), |
| 0); // 10 11 12 13 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t2), |
| 0); // 20 21 22 23 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t3), |
| 0); // 30 31 32 33 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0), |
| 1); // 40 41 42 43 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t1), |
| 1); // 50 51 52 53 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t2), |
| 1); // 60 61 62 63 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t3), |
| 1); // 70 71 72 73 |
| dst += dst_stride; |
| } else if ((w == 4) && (h == 2)) { |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0), |
| 0); // 00 01 02 03 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t1), |
| 0); // 10 11 12 13 |
| dst += dst_stride; |
| } else if ((w == 2) && (h > 4)) { |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t0), |
| 0); // 00 01 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t1), |
| 0); // 10 11 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t2), |
| 0); // 20 21 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t3), |
| 0); // 30 31 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t0), |
| 2); // 40 41 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t1), |
| 2); // 50 51 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t2), |
| 2); // 60 61 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t3), |
| 2); // 70 71 |
| dst += dst_stride; |
| } else if ((w == 2) && (h == 2)) { |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t0), |
| 0); // 00 01 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t1), |
| 0); // 10 11 |
| dst += dst_stride; |
| } |
| h -= 8; |
| } while (h > 0); |
| #else |
| int16x8_t tt0; |
| int16x4_t x0, x1, x2, x3, x4, x5, x6, x7; |
| const int16x4_t shift_round_0_low = vget_low_s16(shift_round_0); |
| const int16x4_t shift_by_bits_low = vget_low_s16(shift_by_bits); |
| 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_horiz_4x1(x0, x1, x2, x3, x4, x5, x6, x7, x_filter, |
| shift_round_0_low, shift_by_bits_low); |
| |
| if (w == 4) { |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0), |
| 0); // 00 01 02 03 |
| dst += dst_stride; |
| } else if (w == 2) { |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t0), 0); // 00 01 |
| 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, |
| shift_round_0, shift_by_bits); |
| |
| t1 = convolve8_horiz_8x8(s1, s2, s3, s4, s5, s6, s7, s8, x_filter, |
| shift_round_0, shift_by_bits); |
| |
| t2 = convolve8_horiz_8x8(s2, s3, s4, s5, s6, s7, s8, s9, x_filter, |
| shift_round_0, shift_by_bits); |
| |
| t3 = convolve8_horiz_8x8(s3, s4, s5, s6, s7, s8, s9, s10, x_filter, |
| shift_round_0, shift_by_bits); |
| |
| t4 = convolve8_horiz_8x8(s4, s5, s6, s7, s8, s9, s10, s11, x_filter, |
| shift_round_0, shift_by_bits); |
| |
| t5 = convolve8_horiz_8x8(s5, s6, s7, s8, s9, s10, s11, s12, x_filter, |
| shift_round_0, shift_by_bits); |
| |
| t6 = convolve8_horiz_8x8(s6, s7, s8, s9, s10, s11, s12, s13, x_filter, |
| shift_round_0, shift_by_bits); |
| |
| t7 = convolve8_horiz_8x8(s7, s8, s9, s10, s11, s12, s13, s14, |
| x_filter, shift_round_0, shift_by_bits); |
| |
| 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_row2_u8_8x8(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 |
| 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, |
| shift_round_0, shift_by_bits); |
| 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 |
| } |
| |
| 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) { |
| if (filter_params_y->taps > 8) { |
| av1_convolve_y_sr_c(src, src_stride, dst, dst_stride, w, h, filter_params_y, |
| subpel_y_qn); |
| return; |
| } |
| const int vert_offset = filter_params_y->taps / 2 - 1; |
| |
| src -= vert_offset * src_stride; |
| |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| filter_params_y, subpel_y_qn & SUBPEL_MASK); |
| |
| 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); |
| d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), FILTER_BITS); |
| if ((w == 4) && (h != 2)) { |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01), |
| 0); // 00 01 02 03 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01), |
| 1); // 10 11 12 13 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d23), |
| 0); // 20 21 22 23 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d23), |
| 1); // 30 31 32 33 |
| dst += dst_stride; |
| } else if ((w == 4) && (h == 2)) { |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01), |
| 0); // 00 01 02 03 |
| dst += dst_stride; |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01), |
| 1); // 10 11 12 13 |
| dst += dst_stride; |
| } else if ((w == 2) && (h != 2)) { |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 0); // 00 01 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 2); // 10 11 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d23), 0); // 20 21 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d23), 2); // 30 31 |
| dst += dst_stride; |
| } else if ((w == 2) && (h == 2)) { |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 0); // 00 01 |
| dst += dst_stride; |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 2); // 10 11 |
| dst += dst_stride; |
| } |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| 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); |
| |
| if (w == 4) { |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01), 0); |
| dst += dst_stride; |
| } else if (w == 2) { |
| vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 0); |
| dst += dst_stride; |
| } |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s5 = s6; |
| s6 = s7; |
| 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) { |
| vst1_u8(d, t0); |
| d += dst_stride; |
| vst1_u8(d, t1); |
| d += dst_stride; |
| vst1_u8(d, t2); |
| d += dst_stride; |
| vst1_u8(d, t3); |
| d += dst_stride; |
| } else { |
| vst1_u8(d, t0); |
| d += dst_stride; |
| vst1_u8(d, t1); |
| d += dst_stride; |
| } |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| 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); |
| } |
| } |
| |
| // 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 int16_t *x_filter, |
| const int16x8_t horiz_const, const int16x8_t shift_round_0) { |
| 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_8x8_s16(sum, s1, s2, s3, s4, s5, s6, s7, |
| x_filter, horiz_const, shift_round_0); |
| |
| 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 int16_t *x_filter, |
| const int16x4_t horiz_const, const int16x4_t shift_round_0) { |
| 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_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter, |
| horiz_const, shift_round_0); |
| |
| if (width == 4) { |
| vst1_s16(dst_ptr, d0); |
| dst_ptr += dst_stride; |
| } else if (width == 2) { |
| vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_s16(d0), 0); |
| dst_ptr += dst_stride; |
| } |
| |
| src_ptr += src_stride; |
| height--; |
| } while (height > 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) { |
| if (filter_params_x->taps > 8) { |
| av1_convolve_2d_sr_c(src, src_stride, dst, dst_stride, w, h, |
| filter_params_x, filter_params_y, subpel_x_qn, |
| subpel_y_qn, conv_params); |
| return; |
| } |
| int im_dst_stride; |
| int width, height; |
| #if defined(__aarch64__) |
| uint8x8_t t0; |
| uint8x8_t t1, t2, t3, t4, t5, t6, t7; |
| const uint8_t *s; |
| #endif |
| |
| DECLARE_ALIGNED(16, int16_t, |
| im_block[(MAX_SB_SIZE + HORIZ_EXTRA_ROWS) * MAX_SB_SIZE]); |
| |
| const int bd = 8; |
| const int im_h = h + filter_params_y->taps - 1; |
| const int im_stride = MAX_SB_SIZE; |
| const int vert_offset = filter_params_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; |
| |
| int16_t *dst_ptr; |
| |
| dst_ptr = im_block; |
| im_dst_stride = im_stride; |
| height = im_h; |
| width = w; |
| |
| const int16_t round_bits = |
| FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1; |
| const int16x8_t vec_round_bits = vdupq_n_s16(-round_bits); |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| |
| int16_t x_filter_tmp[8]; |
| int16x8_t filter_x_coef = vld1q_s16(x_filter); |
| |
| // filter coeffs are even, so downshifting by 1 to reduce intermediate |
| // precision requirements. |
| filter_x_coef = vshrq_n_s16(filter_x_coef, 1); |
| vst1q_s16(&x_filter_tmp[0], filter_x_coef); |
| |
| assert(conv_params->round_0 > 0); |
| |
| if (w <= 4) { |
| const int16x4_t horiz_const = vdup_n_s16((1 << (bd + FILTER_BITS - 2))); |
| const int16x4_t shift_round_0 = vdup_n_s16(-(conv_params->round_0 - 1)); |
| |
| #if defined(__aarch64__) |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3; |
| do { |
| assert(height >= 4); |
| s = src_ptr; |
| __builtin_prefetch(s + 0 * src_stride); |
| __builtin_prefetch(s + 1 * src_stride); |
| __builtin_prefetch(s + 2 * src_stride); |
| __builtin_prefetch(s + 3 * src_stride); |
| |
| 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))); |
| |
| __builtin_prefetch(dst_ptr + 0 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 1 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 2 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 3 * im_dst_stride); |
| 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_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp, |
| horiz_const, shift_round_0); |
| d1 = convolve8_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp, |
| horiz_const, shift_round_0); |
| d2 = convolve8_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp, |
| horiz_const, shift_round_0); |
| d3 = convolve8_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp, |
| horiz_const, shift_round_0); |
| |
| transpose_s16_4x4d(&d0, &d1, &d2, &d3); |
| if (w == 4) { |
| vst1_s16((dst_ptr + 0 * im_dst_stride), d0); |
| vst1_s16((dst_ptr + 1 * im_dst_stride), d1); |
| vst1_s16((dst_ptr + 2 * im_dst_stride), d2); |
| vst1_s16((dst_ptr + 3 * im_dst_stride), d3); |
| } else if (w == 2) { |
| vst1_lane_u32((uint32_t *)(dst_ptr + 0 * im_dst_stride), |
| vreinterpret_u32_s16(d0), 0); |
| vst1_lane_u32((uint32_t *)(dst_ptr + 1 * im_dst_stride), |
| vreinterpret_u32_s16(d1), 0); |
| vst1_lane_u32((uint32_t *)(dst_ptr + 2 * im_dst_stride), |
| vreinterpret_u32_s16(d2), 0); |
| vst1_lane_u32((uint32_t *)(dst_ptr + 3 * im_dst_stride), |
| vreinterpret_u32_s16(d3), 0); |
| } |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * im_dst_stride; |
| height -= 4; |
| } while (height >= 4); |
| |
| if (height) { |
| assert(height < 4); |
| horiz_filter_w4_single_row(src_ptr, src_stride, dst_ptr, im_dst_stride, w, |
| height, x_filter_tmp, horiz_const, |
| shift_round_0); |
| } |
| #else |
| horiz_filter_w4_single_row(src_ptr, src_stride, dst_ptr, im_dst_stride, w, |
| height, x_filter_tmp, horiz_const, |
| shift_round_0); |
| #endif |
| |
| } else { |
| const int16x8_t horiz_const = vdupq_n_s16((1 << (bd + FILTER_BITS - 2))); |
| const int16x8_t shift_round_0 = vdupq_n_s16(-(conv_params->round_0 - 1)); |
| |
| #if defined(__aarch64__) |
| int16_t *d_tmp; |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14; |
| int16x8_t res0, res1, res2, res3, res4, res5, res6, res7; |
| do { |
| assert(height >= 8); |
| __builtin_prefetch(src_ptr + 0 * src_stride); |
| __builtin_prefetch(src_ptr + 1 * src_stride); |
| __builtin_prefetch(src_ptr + 2 * src_stride); |
| __builtin_prefetch(src_ptr + 3 * src_stride); |
| __builtin_prefetch(src_ptr + 4 * src_stride); |
| __builtin_prefetch(src_ptr + 5 * src_stride); |
| __builtin_prefetch(src_ptr + 6 * src_stride); |
| __builtin_prefetch(src_ptr + 7 * src_stride); |
| |
| load_u8_8x8(src_ptr, 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_ptr + 7; |
| d_tmp = dst_ptr; |
| |
| __builtin_prefetch(dst_ptr + 0 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 1 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 2 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 3 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 4 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 5 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 6 * im_dst_stride); |
| __builtin_prefetch(dst_ptr + 7 * im_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)); |
| |
| res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp, |
| horiz_const, shift_round_0); |
| res1 = convolve8_8x8_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp, |
| horiz_const, shift_round_0); |
| res2 = convolve8_8x8_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp, |
| horiz_const, shift_round_0); |
| res3 = convolve8_8x8_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp, |
| horiz_const, shift_round_0); |
| res4 = convolve8_8x8_s16(s4, s5, s6, s7, s8, s9, s10, s11, x_filter_tmp, |
| horiz_const, shift_round_0); |
| res5 = convolve8_8x8_s16(s5, s6, s7, s8, s9, s10, s11, s12, |
| x_filter_tmp, horiz_const, shift_round_0); |
| res6 = convolve8_8x8_s16(s6, s7, s8, s9, s10, s11, s12, s13, |
| x_filter_tmp, horiz_const, shift_round_0); |
| res7 = convolve8_8x8_s16(s7, s8, s9, s10, s11, s12, s13, s14, |
| x_filter_tmp, horiz_const, shift_round_0); |
| |
| transpose_s16_8x8(&res0, &res1, &res2, &res3, &res4, &res5, &res6, |
| &res7); |
| |
| store_s16_8x8(d_tmp, im_dst_stride, res0, res1, res2, res3, res4, res5, |
| res6, res7); |
| |
| s0 = s8; |
| s1 = s9; |
| s2 = s10; |
| s3 = s11; |
| s4 = s12; |
| s5 = s13; |
| s6 = s14; |
| s += 8; |
| d_tmp += 8; |
| width -= 8; |
| } while (width > 0); |
| src_ptr += 8 * src_stride; |
| dst_ptr += 8 * im_dst_stride; |
| height -= 8; |
| } while (height >= 8); |
| |
| if (height >= 4) { |
| assert(height < 8); |
| int16x4_t reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7, reg8, reg9, |
| reg10, reg11, reg12, reg13, reg14; |
| int16x4_t d0, d1, d2, d3, d4, d5, d6, d7; |
| int16x8_t out0, out1, out2, out3; |
| |
| __builtin_prefetch(src_ptr + 0 * src_stride); |
| __builtin_prefetch(src_ptr + 1 * src_stride); |
| __builtin_prefetch(src_ptr + 2 * src_stride); |
| __builtin_prefetch(src_ptr + 3 * src_stride); |
| |
| load_u8_8x4(src_ptr, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| reg0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| reg1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| reg2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| reg3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| reg4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| reg5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| reg6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| |
| __builtin_prefetch(dst_ptr + 0 * dst_stride); |
| __builtin_prefetch(dst_ptr + 1 * dst_stride); |
| __builtin_prefetch(dst_ptr + 2 * dst_stride); |
| __builtin_prefetch(dst_ptr + 3 * dst_stride); |
| |
| s = src_ptr + 7; |
| d_tmp = dst_ptr; |
| width = w; |
| |
| do { |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| reg7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| reg8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| reg9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| reg10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| reg11 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| reg12 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| reg13 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| reg14 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| d0 = convolve8_4x4(reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7, |
| x_filter_tmp); |
| |
| d1 = convolve8_4x4(reg1, reg2, reg3, reg4, reg5, reg6, reg7, reg8, |
| x_filter_tmp); |
| |
| d2 = convolve8_4x4(reg2, reg3, reg4, reg5, reg6, reg7, reg8, reg9, |
| x_filter_tmp); |
| |
| d3 = convolve8_4x4(reg3, reg4, reg5, reg6, reg7, reg8, reg9, reg10, |
| x_filter_tmp); |
| |
| d4 = convolve8_4x4(reg4, reg5, reg6, reg7, reg8, reg9, reg10, reg11, |
| x_filter_tmp); |
| |
| d5 = convolve8_4x4(reg5, reg6, reg7, reg8, reg9, reg10, reg11, reg12, |
| x_filter_tmp); |
| |
| d6 = convolve8_4x4(reg6, reg7, reg8, reg9, reg10, reg11, reg12, reg13, |
| x_filter_tmp); |
| |
| d7 = convolve8_4x4(reg7, reg8, reg9, reg10, reg11, reg12, reg13, reg14, |
| x_filter_tmp); |
| |
| transpose_s16_4x8(&d0, &d1, &d2, &d3, &d4, &d5, &d6, &d7, &out0, &out1, |
| &out2, &out3); |
| |
| out0 = vaddq_s16(out0, horiz_const); |
| out0 = vqrshlq_s16(out0, shift_round_0); |
| |
| out1 = vaddq_s16(out1, horiz_const); |
| out1 = vqrshlq_s16(out1, shift_round_0); |
| |
| out2 = vaddq_s16(out2, horiz_const); |
| out2 = vqrshlq_s16(out2, shift_round_0); |
| |
| out3 = vaddq_s16(out3, horiz_const); |
| out3 = vqrshlq_s16(out3, shift_round_0); |
| |
| store_s16_8x4(d_tmp, im_dst_stride, out0, out1, out2, out3); |
| |
| reg0 = reg8; |
| reg1 = reg9; |
| reg2 = reg10; |
| reg3 = reg11; |
| reg4 = reg12; |
| reg5 = reg13; |
| reg6 = reg14; |
| s += 8; |
| d_tmp += 8; |
| width -= 8; |
| } while (width > 0); |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * im_dst_stride; |
| height -= 4; |
| } |
| |
| if (height) { |
| assert(height < 4); |
| horiz_filter_w8_single_row(src_ptr, src_stride, dst_ptr, im_stride, w, |
| height, x_filter_tmp, horiz_const, |
| shift_round_0); |
| } |
| #else |
| |
| horiz_filter_w8_single_row(src_ptr, src_stride, dst_ptr, im_stride, w, |
| height, x_filter_tmp, horiz_const, |
| shift_round_0); |
| #endif |
| } |
| |
| // vertical |
| { |
| uint8_t *dst_u8_ptr, *d_u8; |
| int16_t *v_src_ptr, *v_s; |
| |
| const int32_t sub_const = (1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)); |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| filter_params_y, subpel_y_qn & SUBPEL_MASK); |
| |
| const int32x4_t round_shift_vec = vdupq_n_s32(-(conv_params->round_1)); |
| const int32x4_t offset_const = vdupq_n_s32(1 << offset_bits); |
| const int32x4_t sub_const_vec = vdupq_n_s32(sub_const); |
| |
| src_stride = im_stride; |
| v_src_ptr = im_block; |
| dst_u8_ptr = dst; |
| |
| height = h; |
| width = w; |
| |
| if (width <= 4) { |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7; |
| uint16x4_t d0; |
| uint16x8_t dd0; |
| uint8x8_t d01; |
| |
| #if defined(__aarch64__) |
| int16x4_t s8, s9, s10; |
| uint16x4_t d1, d2, d3; |
| uint16x8_t dd1; |
| uint8x8_t d23; |
| #endif |
| |
| d_u8 = dst_u8_ptr; |
| v_s = v_src_ptr; |
| |
| __builtin_prefetch(v_s + 0 * im_stride); |
| __builtin_prefetch(v_s + 1 * im_stride); |
| __builtin_prefetch(v_s + 2 * im_stride); |
| __builtin_prefetch(v_s + 3 * im_stride); |
| __builtin_prefetch(v_s + 4 * im_stride); |
| __builtin_prefetch(v_s + 5 * im_stride); |
| __builtin_prefetch(v_s + 6 * im_stride); |
| __builtin_prefetch(v_s + 7 * im_stride); |
| |
| load_s16_4x8(v_s, im_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| v_s += (7 * im_stride); |
| |
| do { |
| #if defined(__aarch64__) |
| load_s16_4x4(v_s, im_stride, &s7, &s8, &s9, &s10); |
| v_s += (im_stride << 2); |
| |
| __builtin_prefetch(d_u8 + 0 * dst_stride); |
| __builtin_prefetch(d_u8 + 1 * dst_stride); |
| __builtin_prefetch(d_u8 + 2 * dst_stride); |
| __builtin_prefetch(d_u8 + 3 * dst_stride); |
| |
| d0 = convolve8_vert_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, |
| round_shift_vec, offset_const, |
| sub_const_vec); |
| d1 = convolve8_vert_4x4_s32(s1, s2, s3, s4, s5, s6, s7, s8, y_filter, |
| round_shift_vec, offset_const, |
| sub_const_vec); |
| d2 = convolve8_vert_4x4_s32(s2, s3, s4, s5, s6, s7, s8, s9, y_filter, |
| round_shift_vec, offset_const, |
| sub_const_vec); |
| d3 = convolve8_vert_4x4_s32(s3, s4, s5, s6, s7, s8, s9, s10, y_filter, |
| round_shift_vec, offset_const, |
| sub_const_vec); |
| |
| dd0 = vqrshlq_u16(vcombine_u16(d0, d1), vec_round_bits); |
| dd1 = vqrshlq_u16(vcombine_u16(d2, d3), vec_round_bits); |
| |
| d01 = vqmovn_u16(dd0); |
| d23 = vqmovn_u16(dd1); |
| |
| if ((w == 4) && (h != 2)) { |
| vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01), |
| 0); // 00 01 02 03 |
| d_u8 += dst_stride; |
| vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01), |
| 1); // 10 11 12 13 |
| d_u8 += dst_stride; |
| vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d23), |
| 0); // 20 21 22 23 |
| d_u8 += dst_stride; |
| vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d23), |
| 1); // 30 31 32 33 |
| d_u8 += dst_stride; |
| } else if ((w == 2) && (h != 2)) { |
| vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01), |
| 0); // 00 01 |
| d_u8 += dst_stride; |
| vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01), |
| 2); // 10 11 |
| d_u8 += dst_stride; |
| vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d23), |
| 0); // 20 21 |
| d_u8 += dst_stride; |
| vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d23), |
| 2); // 30 31 |
| d_u8 += dst_stride; |
| } else if ((w == 4) && (h == 2)) { |
| vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01), |
| 0); // 00 01 02 03 |
| d_u8 += dst_stride; |
| vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01), |
| 1); // 10 11 12 13 |
| d_u8 += dst_stride; |
| } else if ((w == 2) && (h == 2)) { |
| vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01), |
| 0); // 00 01 |
| d_u8 += dst_stride; |
| vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01), |
| 2); // 10 11 |
| d_u8 += dst_stride; |
| } |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| height -= 4; |
| #else |
| s7 = vld1_s16(v_s); |
| v_s += im_stride; |
| |
| __builtin_prefetch(d_u8 + 0 * dst_stride); |
| |
| d0 = convolve8_vert_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, |
| round_shift_vec, offset_const, |
| sub_const_vec); |
| |
| dd0 = vqrshlq_u16(vcombine_u16(d0, d0), vec_round_bits); |
| d01 = vqmovn_u16(dd0); |
| |
| if (w == 4) { |
| vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01), |
| 0); // 00 01 02 03 |
| d_u8 += dst_stride; |
| |
| } else if (w == 2) { |
| vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01), |
| 0); // 00 01 |
| d_u8 += dst_stride; |
| } |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s5 = s6; |
| s6 = s7; |
| height -= 1; |
| #endif |
| } while (height > 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 res0; |
| #if defined(__aarch64__) |
| int16x8_t s8, s9, s10; |
| uint8x8_t res1, res2, res3; |
| #endif |
| |
| do { |
| __builtin_prefetch(v_src_ptr + 0 * im_stride); |
| __builtin_prefetch(v_src_ptr + 1 * im_stride); |
| __builtin_prefetch(v_src_ptr + 2 * im_stride); |
| __builtin_prefetch(v_src_ptr + 3 * im_stride); |
| __builtin_prefetch(v_src_ptr + 4 * im_stride); |
| __builtin_prefetch(v_src_ptr + 5 * im_stride); |
| __builtin_prefetch(v_src_ptr + 6 * im_stride); |
| __builtin_prefetch(v_src_ptr + 7 * im_stride); |
| |
| v_s = v_src_ptr; |
| load_s16_8x8(v_s, im_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| v_s += (7 * im_stride); |
| |
| d_u8 = dst_u8_ptr; |
| height = h; |
| |
| do { |
| #if defined(__aarch64__) |
| load_s16_8x4(v_s, im_stride, &s7, &s8, &s9, &s10); |
| v_s += (im_stride << 2); |
| |
| __builtin_prefetch(d_u8 + 4 * dst_stride); |
| __builtin_prefetch(d_u8 + 5 * dst_stride); |
| __builtin_prefetch(d_u8 + 6 * dst_stride); |
| __builtin_prefetch(d_u8 + 7 * dst_stride); |
| |
| res0 = convolve8_vert_8x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, |
| y_filter, round_shift_vec, offset_const, |
| sub_const_vec, vec_round_bits); |
| res1 = convolve8_vert_8x4_s32(s1, s2, s3, s4, s5, s6, s7, s8, |
| y_filter, round_shift_vec, offset_const, |
| sub_const_vec, vec_round_bits); |
| res2 = convolve8_vert_8x4_s32(s2, s3, s4, s5, s6, s7, s8, s9, |
| y_filter, round_shift_vec, offset_const, |
| sub_const_vec, vec_round_bits); |
| res3 = convolve8_vert_8x4_s32(s3, s4, s5, s6, s7, s8, s9, s10, |
| y_filter, round_shift_vec, offset_const, |
| sub_const_vec, vec_round_bits); |
| |
| if (h != 2) { |
| vst1_u8(d_u8, res0); |
| d_u8 += dst_stride; |
| vst1_u8(d_u8, res1); |
| d_u8 += dst_stride; |
| vst1_u8(d_u8, res2); |
| d_u8 += dst_stride; |
| vst1_u8(d_u8, res3); |
| d_u8 += dst_stride; |
| } else { |
| vst1_u8(d_u8, res0); |
| d_u8 += dst_stride; |
| vst1_u8(d_u8, res1); |
| d_u8 += dst_stride; |
| } |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| height -= 4; |
| #else |
| s7 = vld1q_s16(v_s); |
| v_s += im_stride; |
| |
| __builtin_prefetch(d_u8 + 0 * dst_stride); |
| |
| res0 = convolve8_vert_8x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, |
| y_filter, round_shift_vec, offset_const, |
| sub_const_vec, vec_round_bits); |
| |
| vst1_u8(d_u8, res0); |
| d_u8 += dst_stride; |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s5 = s6; |
| s6 = s7; |
| height -= 1; |
| #endif |
| } while (height > 0); |
| v_src_ptr += 8; |
| dst_u8_ptr += 8; |
| w -= 8; |
| } while (w > 0); |
| } |
| } |
| } |
| |
| 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]); |
| const int16x4_t filter3 = vdup_lane_s16(vget_low_s16(filters), 3); |
| const int16x4_t filter4 = vdup_lane_s16(vget_high_s16(filters), 0); |
| 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, filter3, filter4); |
| d = vqrshrun_n_s16(vcombine_s16(tt, tt), 7); |
| vst1_lane_u32((uint32_t *)&temp[4 * z], vreinterpret_u32_u8(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); |
| vst1_lane_u32((uint32_t *)&dst[x + 0 * dst_stride], |
| vreinterpret_u32_u8(d4.val[0]), 0); |
| vst1_lane_u32((uint32_t *)&dst[x + 1 * dst_stride], |
| vreinterpret_u32_u8(d4.val[1]), 0); |
| vst1_lane_u32((uint32_t *)&dst[x + 2 * dst_stride], |
| vreinterpret_u32_u8(d4.val[2]), 0); |
| vst1_lane_u32((uint32_t *)&dst[x + 3 * dst_stride], |
| vreinterpret_u32_u8(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]); |
| vst1_u8(&dst[x + 0 * dst_stride], d[0]); |
| vst1_u8(&dst[x + 1 * dst_stride], d[1]); |
| vst1_u8(&dst[x + 2 * dst_stride], d[2]); |
| vst1_u8(&dst[x + 3 * dst_stride], d[3]); |
| vst1_u8(&dst[x + 4 * dst_stride], d[4]); |
| vst1_u8(&dst[x + 5 * dst_stride], d[5]); |
| vst1_u8(&dst[x + 6 * dst_stride], d[6]); |
| vst1_u8(&dst[x + 7 * dst_stride], 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]); |
| const int16x4_t filter3 = vdup_lane_s16(vget_low_s16(filters), 3); |
| const int16x4_t filter4 = vdup_lane_s16(vget_high_s16(filters), 0); |
| 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, |
| filter3, filter4); |
| d = vqrshrun_n_s16(vcombine_s16(tt, tt), 7); |
| vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(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); |
| } |
| } |
