| /* |
| * |
| * 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 "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/mem_neon.h" |
| #include "av1/common/arm/transpose_neon.h" |
| |
| static INLINE int16x4_t convolve8_horiz_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); |
| } |
| |
| void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| const uint8_t horiz_offset = filter_params_x->taps / 2 - 1; |
| const uint8_t bits = FILTER_BITS - conv_params->round_0; |
| |
| (void)subpel_y_q4; |
| (void)conv_params; |
| (void)filter_params_y; |
| |
| uint8x8_t t0, t1, t2, t3; |
| |
| 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_q4 & 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 (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_horiz_4x4(s0, s1, s2, s3, s4, s5, s6, s7, x_filter); |
| |
| d1 = convolve8_horiz_4x4(s1, s2, s3, s4, s5, s6, s7, s8, x_filter); |
| |
| d2 = convolve8_horiz_4x4(s2, s3, s4, s5, s6, s7, s8, s9, x_filter); |
| |
| d3 = convolve8_horiz_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 { |
| int width; |
| const uint8_t *s; |
| uint8x8_t t4, t5, t6, t7; |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; |
| |
| if (w <= 4) { |
| do { |
| load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); |
| s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); |
| |
| load_u8_8x8(src + 7, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, |
| &t7); |
| src += 8 * src_stride; |
| __builtin_prefetch(dst + 0 * dst_stride); |
| __builtin_prefetch(dst + 1 * dst_stride); |
| __builtin_prefetch(dst + 2 * dst_stride); |
| __builtin_prefetch(dst + 3 * dst_stride); |
| __builtin_prefetch(dst + 4 * dst_stride); |
| __builtin_prefetch(dst + 5 * dst_stride); |
| __builtin_prefetch(dst + 6 * dst_stride); |
| __builtin_prefetch(dst + 7 * dst_stride); |
| |
| transpose_u8_4x8(&t0, &t1, &t2, &t3, t4, t5, t6, t7); |
| |
| s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| |
| __builtin_prefetch(src + 0 * src_stride); |
| __builtin_prefetch(src + 1 * src_stride); |
| __builtin_prefetch(src + 2 * src_stride); |
| __builtin_prefetch(src + 3 * src_stride); |
| __builtin_prefetch(src + 4 * src_stride); |
| __builtin_prefetch(src + 5 * src_stride); |
| __builtin_prefetch(src + 6 * src_stride); |
| __builtin_prefetch(src + 7 * src_stride); |
| t0 = convolve8_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 { |
| uint8_t *d; |
| int16x8_t s11, s12, s13, s14; |
| |
| do { |
| __builtin_prefetch(src + 0 * src_stride); |
| __builtin_prefetch(src + 1 * src_stride); |
| __builtin_prefetch(src + 2 * src_stride); |
| __builtin_prefetch(src + 3 * src_stride); |
| __builtin_prefetch(src + 4 * src_stride); |
| __builtin_prefetch(src + 5 * src_stride); |
| __builtin_prefetch(src + 6 * src_stride); |
| __builtin_prefetch(src + 7 * src_stride); |
| load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); |
| s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); |
| |
| width = w; |
| s = src + 7; |
| d = dst; |
| __builtin_prefetch(dst + 0 * dst_stride); |
| __builtin_prefetch(dst + 1 * dst_stride); |
| __builtin_prefetch(dst + 2 * dst_stride); |
| __builtin_prefetch(dst + 3 * dst_stride); |
| __builtin_prefetch(dst + 4 * dst_stride); |
| __builtin_prefetch(dst + 5 * dst_stride); |
| __builtin_prefetch(dst + 6 * dst_stride); |
| __builtin_prefetch(dst + 7 * dst_stride); |
| |
| do { |
| load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| s11 = vreinterpretq_s16_u16(vmovl_u8(t4)); |
| s12 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| s13 = vreinterpretq_s16_u16(vmovl_u8(t6)); |
| s14 = vreinterpretq_s16_u16(vmovl_u8(t7)); |
| |
| t0 = convolve8_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); |
| } |
| } |
| } |
