| /* |
| * |
| * 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/aom_config.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 convolve12_4_x(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); |
| } |
| |
| 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); |
| |
| // A 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 AOM_ARCH_AARCH64 |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int width = w; |
| |
| uint8x8_t t0, t1, t2, t3; |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_elems_inplace_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| int16x4_t s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| int16x4_t s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| int16x4_t s7 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| load_u8_8x4(s + 8, src_stride, &t0, &t1, &t2, &t3); |
| transpose_elems_inplace_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| int16x4_t s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| |
| s += 11; |
| |
| do { |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_elems_inplace_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| int16x4_t s11 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s12 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s13 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| int16x4_t s14 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| int16x4_t d0 = |
| convolve12_4_x(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| int16x4_t d1 = |
| convolve12_4_x(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| int16x4_t d2 = |
| convolve12_4_x(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| int16x4_t d3 = |
| convolve12_4_x(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| |
| transpose_elems_inplace_s16_4x4(&d0, &d1, &d2, &d3); |
| |
| uint8x8_t d01 = vqmovun_s16(vcombine_s16(d0, d1)); |
| uint8x8_t d23 = vqmovun_s16(vcombine_s16(d2, d3)); |
| |
| store_u8x4_strided_x2(d, dst_stride, d01); |
| store_u8x4_strided_x2(d + 2 * dst_stride, dst_stride, d23); |
| |
| 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 != 0); |
| |
| #else // !AOM_ARCH_AARCH64 |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t t0 = vld1q_u8(s); |
| int16x8_t tt0 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(t0))); |
| int16x8_t tt8 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(t0))); |
| |
| int16x4_t s0 = vget_low_s16(tt0); |
| int16x4_t s4 = vget_high_s16(tt0); |
| int16x4_t s8 = vget_low_s16(tt8); |
| int16x4_t s12 = vget_high_s16(tt8); |
| |
| int16x4_t s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4 |
| int16x4_t s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5 |
| int16x4_t s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6 |
| int16x4_t s5 = vext_s16(s4, s8, 1); // a5 a6 a7 a8 |
| int16x4_t s6 = vext_s16(s4, s8, 2); // a6 a7 a8 a9 |
| int16x4_t s7 = vext_s16(s4, s8, 3); // a7 a8 a9 a10 |
| int16x4_t s9 = vext_s16(s8, s12, 1); // a9 a10 a11 a12 |
| int16x4_t s10 = vext_s16(s8, s12, 2); // a10 a11 a12 a13 |
| int16x4_t s11 = vext_s16(s8, s12, 3); // a11 a12 a13 a14 |
| |
| int16x4_t d0 = |
| convolve12_4_x(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| |
| uint8x8_t dd0 = vqmovun_s16(vcombine_s16(d0, vdup_n_s16(0))); |
| |
| store_u8_4x1(d, dd0); |
| |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width != 0); |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } while (--h != 0); |
| #endif // AOM_ARCH_AARCH64 |
| } |
| |
| static INLINE uint8x8_t convolve4_8_x(const int16x8_t s0, const int16x8_t s1, |
| const int16x8_t s2, const int16x8_t s3, |
| const int16x4_t filter, |
| int16x8_t horiz_const) { |
| int16x8_t sum = horiz_const; |
| sum = vmlaq_lane_s16(sum, s0, filter, 0); |
| sum = vmlaq_lane_s16(sum, s1, filter, 1); |
| sum = vmlaq_lane_s16(sum, s2, filter, 2); |
| sum = vmlaq_lane_s16(sum, s3, filter, 3); |
| // We halved the filter values so -1 from right shift. |
| return vqrshrun_n_s16(sum, FILTER_BITS - 1); |
| } |
| |
| static INLINE void convolve_x_sr_4tap_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) { |
| // All filter values are even, halve to reduce intermediate precision |
| // requirements. |
| const int16x4_t filter = vshr_n_s16(vld1_s16(x_filter_ptr + 2), 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 will halve the filter values. |
| const int16x8_t horiz_const = vdupq_n_s16(1 << ((ROUND0_BITS - 1) - 1)); |
| |
| if (w == 4) { |
| do { |
| uint8x8_t t01[4]; |
| t01[0] = load_unaligned_u8(src_ptr + 0, src_stride); |
| t01[1] = load_unaligned_u8(src_ptr + 1, src_stride); |
| t01[2] = load_unaligned_u8(src_ptr + 2, src_stride); |
| t01[3] = load_unaligned_u8(src_ptr + 3, src_stride); |
| |
| int16x8_t s01[4]; |
| s01[0] = vreinterpretq_s16_u16(vmovl_u8(t01[0])); |
| s01[1] = vreinterpretq_s16_u16(vmovl_u8(t01[1])); |
| s01[2] = vreinterpretq_s16_u16(vmovl_u8(t01[2])); |
| s01[3] = vreinterpretq_s16_u16(vmovl_u8(t01[3])); |
| |
| uint8x8_t d01 = |
| convolve4_8_x(s01[0], s01[1], s01[2], s01[3], filter, horiz_const); |
| |
| store_u8x4_strided_x2(dst_ptr + 0 * dst_stride, dst_stride, d01); |
| |
| src_ptr += 2 * src_stride; |
| dst_ptr += 2 * dst_stride; |
| h -= 2; |
| } while (h != 0); |
| } else { |
| do { |
| int width = w; |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| |
| do { |
| uint8x8_t t0[4], t1[4]; |
| load_u8_8x4(s + 0 * src_stride, 1, &t0[0], &t0[1], &t0[2], &t0[3]); |
| load_u8_8x4(s + 1 * src_stride, 1, &t1[0], &t1[1], &t1[2], &t1[3]); |
| |
| int16x8_t s0[4], s1[4]; |
| s0[0] = vreinterpretq_s16_u16(vmovl_u8(t0[0])); |
| s0[1] = vreinterpretq_s16_u16(vmovl_u8(t0[1])); |
| s0[2] = vreinterpretq_s16_u16(vmovl_u8(t0[2])); |
| s0[3] = vreinterpretq_s16_u16(vmovl_u8(t0[3])); |
| |
| s1[0] = vreinterpretq_s16_u16(vmovl_u8(t1[0])); |
| s1[1] = vreinterpretq_s16_u16(vmovl_u8(t1[1])); |
| s1[2] = vreinterpretq_s16_u16(vmovl_u8(t1[2])); |
| s1[3] = vreinterpretq_s16_u16(vmovl_u8(t1[3])); |
| |
| uint8x8_t d0 = |
| convolve4_8_x(s0[0], s0[1], s0[2], s0[3], filter, horiz_const); |
| uint8x8_t d1 = |
| convolve4_8_x(s1[0], s1[1], s1[2], s1[3], filter, horiz_const); |
| |
| store_u8_8x2(d, dst_stride, d0, d1); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width != 0); |
| src_ptr += 2 * src_stride; |
| dst_ptr += 2 * dst_stride; |
| h -= 2; |
| } while (h != 0); |
| } |
| } |
| |
| static INLINE uint8x8_t convolve8_8_x(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); |
| } |
| |
| 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 (w == 2 || h == 2) { |
| 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; |
| src -= horiz_offset; |
| |
| const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| |
| int filter_taps = get_filter_tap(filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| |
| if (filter_taps > 8) { |
| convolve_x_sr_12tap_neon(src, src_stride, dst, dst_stride, w, h, |
| x_filter_ptr); |
| return; |
| } |
| |
| if (filter_taps <= 4) { |
| convolve_x_sr_4tap_neon(src + 2, src_stride, dst, dst_stride, w, h, |
| x_filter_ptr); |
| return; |
| } |
| |
| // 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 will halve the filter values. |
| const int16x8_t horiz_const = vdupq_n_s16(1 << ((ROUND0_BITS - 1) - 1)); |
| |
| // Filter values are even so halve to reduce precision requirements. |
| const int16x8_t x_filter = vshrq_n_s16(vld1q_s16(x_filter_ptr), 1); |
| |
| #if AOM_ARCH_AARCH64 |
| while (h >= 8) { |
| uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7; |
| load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| |
| transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); |
| int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); |
| |
| int width = w; |
| const uint8_t *s = src + 7; |
| uint8_t *d = dst; |
| |
| __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(d + 4 * dst_stride); |
| __builtin_prefetch(d + 5 * dst_stride); |
| __builtin_prefetch(d + 6 * dst_stride); |
| __builtin_prefetch(d + 7 * dst_stride); |
| |
| do { |
| uint8x8_t t8, t9, t10, t11, t12, t13, t14; |
| load_u8_8x8(s, src_stride, &t7, &t8, &t9, &t10, &t11, &t12, &t13, &t14); |
| |
| transpose_elems_inplace_u8_8x8(&t7, &t8, &t9, &t10, &t11, &t12, &t13, |
| &t14); |
| int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t7)); |
| int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t8)); |
| int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t9)); |
| int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t10)); |
| int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t11)); |
| int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t12)); |
| int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t13)); |
| int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t14)); |
| |
| uint8x8_t d0 = |
| convolve8_8_x(s0, s1, s2, s3, s4, s5, s6, s7, x_filter, horiz_const); |
| uint8x8_t d1 = |
| convolve8_8_x(s1, s2, s3, s4, s5, s6, s7, s8, x_filter, horiz_const); |
| uint8x8_t d2 = |
| convolve8_8_x(s2, s3, s4, s5, s6, s7, s8, s9, x_filter, horiz_const); |
| uint8x8_t d3 = |
| convolve8_8_x(s3, s4, s5, s6, s7, s8, s9, s10, x_filter, horiz_const); |
| uint8x8_t d4 = convolve8_8_x(s4, s5, s6, s7, s8, s9, s10, s11, x_filter, |
| horiz_const); |
| uint8x8_t d5 = convolve8_8_x(s5, s6, s7, s8, s9, s10, s11, s12, x_filter, |
| horiz_const); |
| uint8x8_t d6 = convolve8_8_x(s6, s7, s8, s9, s10, s11, s12, s13, x_filter, |
| horiz_const); |
| uint8x8_t d7 = convolve8_8_x(s7, s8, s9, s10, s11, s12, s13, s14, |
| x_filter, horiz_const); |
| |
| transpose_elems_inplace_u8_8x8(&d0, &d1, &d2, &d3, &d4, &d5, &d6, &d7); |
| |
| store_u8_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 += 8 * src_stride; |
| dst += 8 * dst_stride; |
| h -= 8; |
| } |
| #endif // AOM_ARCH_AARCH64 |
| |
| while (h-- != 0) { |
| uint8x8_t t0 = vld1_u8(src); // a0 a1 a2 a3 a4 a5 a6 a7 |
| int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| |
| int width = w; |
| const uint8_t *s = src + 8; |
| uint8_t *d = dst; |
| |
| __builtin_prefetch(d); |
| |
| do { |
| uint8x8_t t8 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15 |
| int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t8)); |
| |
| int16x8_t s1 = vextq_s16(s0, s8, 1); // a1 a2 a3 a4 a5 a6 a7 a8 |
| int16x8_t s2 = vextq_s16(s0, s8, 2); // a2 a3 a4 a5 a6 a7 a8 a9 |
| int16x8_t s3 = vextq_s16(s0, s8, 3); // a3 a4 a5 a6 a7 a8 a9 a10 |
| int16x8_t s4 = vextq_s16(s0, s8, 4); // a4 a5 a6 a7 a8 a9 a10 a11 |
| int16x8_t s5 = vextq_s16(s0, s8, 5); // a5 a6 a7 a8 a9 a10 a11 a12 |
| int16x8_t s6 = vextq_s16(s0, s8, 6); // a6 a7 a8 a9 a10 a11 a12 a13 |
| int16x8_t s7 = vextq_s16(s0, s8, 7); // a7 a8 a9 a10 a11 a12 a13 a14 |
| |
| uint8x8_t d0 = |
| convolve8_8_x(s0, s1, s2, s3, s4, s5, s6, s7, x_filter, horiz_const); |
| |
| vst1_u8(d, d0); |
| |
| s0 = s8; |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width != 0); |
| src += src_stride; |
| dst += dst_stride; |
| } |
| } |
| |
| static INLINE uint8x8_t convolve4_8_y(const int16x8_t s0, const int16x8_t s1, |
| const int16x8_t s2, const int16x8_t s3, |
| const int16x4_t filter) { |
| int16x8_t sum = vmulq_lane_s16(s0, filter, 0); |
| sum = vmlaq_lane_s16(sum, s1, filter, 1); |
| sum = vmlaq_lane_s16(sum, s2, filter, 2); |
| sum = vmlaq_lane_s16(sum, s3, filter, 3); |
| |
| // We halved the filter values so -1 from right shift. |
| return vqrshrun_n_s16(sum, FILTER_BITS - 1); |
| } |
| |
| static INLINE void convolve_y_sr_4tap_neon(const uint8_t *src, |
| const int src_stride, uint8_t *dst, |
| const int dst_stride, int w, int h, |
| const int16_t *filter_y) { |
| // All filter values are even, halve to reduce intermediate precision |
| // requirements. |
| const int16x4_t filter = vshr_n_s16(vld1_s16(filter_y + 2), 1); |
| |
| if (w == 4) { |
| uint8x8_t t01 = load_unaligned_u8(src + 0 * src_stride, src_stride); |
| uint8x8_t t12 = load_unaligned_u8(src + 1 * src_stride, src_stride); |
| |
| int16x8_t s01 = vreinterpretq_s16_u16(vmovl_u8(t01)); |
| int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t12)); |
| |
| src += 2 * src_stride; |
| |
| do { |
| uint8x8_t t23 = load_unaligned_u8(src + 0 * src_stride, src_stride); |
| uint8x8_t t34 = load_unaligned_u8(src + 1 * src_stride, src_stride); |
| uint8x8_t t45 = load_unaligned_u8(src + 2 * src_stride, src_stride); |
| uint8x8_t t56 = load_unaligned_u8(src + 3 * src_stride, src_stride); |
| |
| int16x8_t s23 = vreinterpretq_s16_u16(vmovl_u8(t23)); |
| int16x8_t s34 = vreinterpretq_s16_u16(vmovl_u8(t34)); |
| int16x8_t s45 = vreinterpretq_s16_u16(vmovl_u8(t45)); |
| int16x8_t s56 = vreinterpretq_s16_u16(vmovl_u8(t56)); |
| |
| uint8x8_t d01 = convolve4_8_y(s01, s12, s23, s34, filter); |
| uint8x8_t d23 = convolve4_8_y(s23, s34, s45, s56, filter); |
| |
| store_u8x4_strided_x2(dst + 0 * dst_stride, dst_stride, d01); |
| store_u8x4_strided_x2(dst + 2 * dst_stride, dst_stride, d23); |
| |
| s01 = s45; |
| s12 = s56; |
| |
| src += 4 * src_stride; |
| dst += 4 * dst_stride; |
| h -= 4; |
| } while (h != 0); |
| } else { |
| do { |
| uint8x8_t t0, t1, t2; |
| load_u8_8x3(src, src_stride, &t0, &t1, &t2); |
| |
| int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| |
| int height = h; |
| const uint8_t *s = src + 3 * src_stride; |
| uint8_t *d = dst; |
| |
| do { |
| uint8x8_t t3; |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| |
| int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| |
| uint8x8_t d0 = convolve4_8_y(s0, s1, s2, s3, filter); |
| uint8x8_t d1 = convolve4_8_y(s1, s2, s3, s4, filter); |
| uint8x8_t d2 = convolve4_8_y(s2, s3, s4, s5, filter); |
| uint8x8_t d3 = convolve4_8_y(s3, s4, s5, s6, filter); |
| |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3); |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| } while (height != 0); |
| src += 8; |
| dst += 8; |
| w -= 8; |
| } while (w != 0); |
| } |
| } |
| |
| static INLINE int16x4_t convolve6_4_y(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_0_7) { |
| 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); |
| |
| // Filter values at indices 0 and 7 are 0. |
| int16x4_t sum = vmul_lane_s16(s0, y_filter_0_3, 1); |
| sum = vmla_lane_s16(sum, s1, y_filter_0_3, 2); |
| sum = vmla_lane_s16(sum, s2, y_filter_0_3, 3); |
| sum = vmla_lane_s16(sum, s3, y_filter_4_7, 0); |
| sum = vmla_lane_s16(sum, s4, y_filter_4_7, 1); |
| sum = vmla_lane_s16(sum, s5, y_filter_4_7, 2); |
| |
| return sum; |
| } |
| |
| static INLINE uint8x8_t convolve6_8_y(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_filters) { |
| const int16x4_t y_filter_lo = vget_low_s16(y_filters); |
| const int16x4_t y_filter_hi = vget_high_s16(y_filters); |
| |
| // Filter values at indices 0 and 7 are 0. |
| int16x8_t sum = vmulq_lane_s16(s0, y_filter_lo, 1); |
| sum = vmlaq_lane_s16(sum, s1, y_filter_lo, 2); |
| sum = vmlaq_lane_s16(sum, s2, y_filter_lo, 3); |
| sum = vmlaq_lane_s16(sum, s3, y_filter_hi, 0); |
| sum = vmlaq_lane_s16(sum, s4, y_filter_hi, 1); |
| sum = vmlaq_lane_s16(sum, s5, y_filter_hi, 2); |
| // We halved the convolution filter values so -1 from the right shift. |
| return vqrshrun_n_s16(sum, FILTER_BITS - 1); |
| } |
| |
| 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) { |
| if (w <= 4) { |
| uint8x8_t t0 = load_unaligned_u8_4x1(src_ptr + 0 * src_stride); |
| uint8x8_t t1 = load_unaligned_u8_4x1(src_ptr + 1 * src_stride); |
| uint8x8_t t2 = load_unaligned_u8_4x1(src_ptr + 2 * src_stride); |
| uint8x8_t t3 = load_unaligned_u8_4x1(src_ptr + 3 * src_stride); |
| uint8x8_t t4 = load_unaligned_u8_4x1(src_ptr + 4 * src_stride); |
| |
| int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| int16x4_t s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| int16x4_t s4 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t4))); |
| |
| src_ptr += 5 * src_stride; |
| |
| do { |
| #if AOM_ARCH_AARCH64 |
| uint8x8_t t5 = load_unaligned_u8_4x1(src_ptr + 0 * src_stride); |
| uint8x8_t t6 = load_unaligned_u8_4x1(src_ptr + 1 * src_stride); |
| uint8x8_t t7 = load_unaligned_u8_4x1(src_ptr + 2 * src_stride); |
| uint8x8_t t8 = load_unaligned_u8_4x1(src_ptr + 3 * src_stride); |
| |
| int16x4_t s5 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t5))); |
| int16x4_t s6 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t6))); |
| int16x4_t s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t7))); |
| int16x4_t s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t8))); |
| |
| int16x4_t d0 = convolve6_4_y(s0, s1, s2, s3, s4, s5, y_filter); |
| int16x4_t d1 = convolve6_4_y(s1, s2, s3, s4, s5, s6, y_filter); |
| int16x4_t d2 = convolve6_4_y(s2, s3, s4, s5, s6, s7, y_filter); |
| int16x4_t d3 = convolve6_4_y(s3, s4, s5, s6, s7, s8, y_filter); |
| |
| // We halved the convolution filter values so -1 from the right shift. |
| uint8x8_t d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), FILTER_BITS - 1); |
| uint8x8_t d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), FILTER_BITS - 1); |
| |
| store_u8x4_strided_x2(dst_ptr, dst_stride, d01); |
| store_u8x4_strided_x2(dst_ptr + 2 * dst_stride, dst_stride, d23); |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| #else // !AOM_ARCH_AARCH64 |
| uint8x8_t t5 = load_unaligned_u8_4x1(src_ptr); |
| int16x4_t s5 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t5))); |
| |
| int16x4_t d0 = convolve6_4_y(s0, s1, s2, s3, s4, s5, y_filter); |
| // We halved the convolution filter values so -1 from the right shift. |
| uint8x8_t d01 = |
| vqrshrun_n_s16(vcombine_s16(d0, vdup_n_s16(0)), FILTER_BITS - 1); |
| |
| store_u8_4x1(dst_ptr, d01); |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| h--; |
| #endif // AOM_ARCH_AARCH64 |
| } while (h != 0); |
| |
| } else { |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int height = h; |
| |
| uint8x8_t t0, t1, t2, t3, t4; |
| load_u8_8x5(s, src_stride, &t0, &t1, &t2, &t3, &t4); |
| |
| int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); |
| |
| s += 5 * src_stride; |
| |
| do { |
| #if AOM_ARCH_AARCH64 |
| uint8x8_t t5, t6, t7, t8; |
| load_u8_8x4(s, src_stride, &t5, &t6, &t7, &t8); |
| |
| int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); |
| int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t7)); |
| int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t8)); |
| |
| uint8x8_t d0 = convolve6_8_y(s0, s1, s2, s3, s4, s5, y_filter); |
| uint8x8_t d1 = convolve6_8_y(s1, s2, s3, s4, s5, s6, y_filter); |
| uint8x8_t d2 = convolve6_8_y(s2, s3, s4, s5, s6, s7, y_filter); |
| uint8x8_t d3 = convolve6_8_y(s3, s4, s5, s6, s7, s8, y_filter); |
| |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3); |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| #else // !AOM_ARCH_AARCH64 |
| int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); |
| |
| uint8x8_t d0 = convolve6_8_y(s0, s1, s2, s3, s4, s5, y_filter); |
| |
| vst1_u8(d, d0); |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s += src_stride; |
| d += dst_stride; |
| height--; |
| #endif // AOM_ARCH_AARCH64 |
| } while (height != 0); |
| src_ptr += 8; |
| dst_ptr += 8; |
| w -= 8; |
| } while (w != 0); |
| } |
| } |
| |
| static INLINE int16x4_t convolve8_4_y(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 = 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; |
| } |
| |
| static INLINE uint8x8_t convolve8_8_y(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 = 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); |
| |
| // We halved the convolution filter values so -1 from the right shift. |
| return vqrshrun_n_s16(sum, FILTER_BITS - 1); |
| } |
| |
| static INLINE void convolve_y_sr_8tap_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) { |
| if (w <= 4) { |
| uint8x8_t t0 = load_unaligned_u8_4x1(src_ptr + 0 * src_stride); |
| uint8x8_t t1 = load_unaligned_u8_4x1(src_ptr + 1 * src_stride); |
| uint8x8_t t2 = load_unaligned_u8_4x1(src_ptr + 2 * src_stride); |
| uint8x8_t t3 = load_unaligned_u8_4x1(src_ptr + 3 * src_stride); |
| uint8x8_t t4 = load_unaligned_u8_4x1(src_ptr + 4 * src_stride); |
| uint8x8_t t5 = load_unaligned_u8_4x1(src_ptr + 5 * src_stride); |
| uint8x8_t t6 = load_unaligned_u8_4x1(src_ptr + 6 * src_stride); |
| |
| int16x4_t s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0))); |
| int16x4_t s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1))); |
| int16x4_t s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2))); |
| int16x4_t s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3))); |
| int16x4_t s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t4))); |
| int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t5))); |
| int16x4_t s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t6))); |
| |
| src_ptr += 7 * src_stride; |
| |
| do { |
| #if AOM_ARCH_AARCH64 |
| uint8x8_t t7 = load_unaligned_u8_4x1(src_ptr + 0 * src_stride); |
| uint8x8_t t8 = load_unaligned_u8_4x1(src_ptr + 1 * src_stride); |
| uint8x8_t t9 = load_unaligned_u8_4x1(src_ptr + 2 * src_stride); |
| uint8x8_t t10 = load_unaligned_u8_4x1(src_ptr + 3 * src_stride); |
| |
| int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t7))); |
| int16x4_t s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t8))); |
| int16x4_t s9 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t9))); |
| int16x4_t s10 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t10))); |
| |
| int16x4_t d0 = convolve8_4_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| int16x4_t d1 = convolve8_4_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter); |
| int16x4_t d2 = convolve8_4_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter); |
| int16x4_t d3 = convolve8_4_y(s3, s4, s5, s6, s7, s8, s9, s10, y_filter); |
| |
| // We halved the convolution filter values so -1 from the right shift. |
| uint8x8_t d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), FILTER_BITS - 1); |
| uint8x8_t d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), FILTER_BITS - 1); |
| |
| store_u8x4_strided_x2(dst_ptr, dst_stride, d01); |
| store_u8x4_strided_x2(dst_ptr + 2 * dst_stride, dst_stride, d23); |
| |
| s0 = s4; |
| s1 = s5; |
| s2 = s6; |
| s3 = s7; |
| s4 = s8; |
| s5 = s9; |
| s6 = s10; |
| src_ptr += 4 * src_stride; |
| dst_ptr += 4 * dst_stride; |
| h -= 4; |
| #else // !AOM_ARCH_AARCH64 |
| uint8x8_t t7 = load_unaligned_u8_4x1(src_ptr); |
| int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t7))); |
| |
| int16x4_t d0 = convolve8_4_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| // We halved the convolution filter values so -1 from the right shift. |
| uint8x8_t d01 = |
| vqrshrun_n_s16(vcombine_s16(d0, vdup_n_s16(0)), FILTER_BITS - 1); |
| |
| store_u8_4x1(dst_ptr, d01); |
| |
| s0 = s1; |
| s1 = s2; |
| s2 = s3; |
| s3 = s4; |
| s4 = s5; |
| s5 = s6; |
| s6 = s7; |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| h--; |
| #endif // AOM_ARCH_AARCH64 |
| } while (h != 0); |
| } else { |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int height = h; |
| |
| uint8x8_t t0, t1, t2, t3, t4, t5, t6; |
| load_u8_8x7(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6); |
| |
| int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); |
| int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); |
| |
| s += 7 * src_stride; |
| |
| do { |
| #if AOM_ARCH_AARCH64 |
| uint8x8_t t7, t8, t9, t10; |
| load_u8_8x4(s, src_stride, &t7, &t8, &t9, &t10); |
| |
| int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t7)); |
| int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t8)); |
| int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t9)); |
| int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t10)); |
| |
| uint8x8_t d0 = convolve8_8_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| uint8x8_t d1 = convolve8_8_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter); |
| uint8x8_t d2 = convolve8_8_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter); |
| uint8x8_t d3 = convolve8_8_y(s3, s4, s5, s6, s7, s8, s9, s10, y_filter); |
| |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3); |
| |
| 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 // !AOM_ARCH_AARCH64 |
| int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); |
| |
| uint8x8_t d0 = convolve8_8_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); |
| |
| 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 // AOM_ARCH_AARCH64 |
| } while (height != 0); |
| src_ptr += 8; |
| dst_ptr += 8; |
| w -= 8; |
| } while (w != 0); |
| } |
| } |
| |
| static INLINE int16x4_t convolve12_4_y(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); |
| |
| // Saturating addition is required for the largest filter taps to avoid |
| // overflow (while staying in 16-bit elements.) |
| 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_8_y(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); |
| |
| // Saturating addition is required for the largest filter taps to avoid |
| // overflow (while staying in 16-bit elements.) |
| 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) { |
| 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; |
| load_u8_8x11(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7, |
| &t8, &t9, &t10); |
| int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| int16x4_t s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| int16x4_t s4 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t4))); |
| int16x4_t s5 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t5))); |
| int16x4_t s6 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t6))); |
| int16x4_t s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t7))); |
| int16x4_t s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t8))); |
| int16x4_t s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t9))); |
| int16x4_t s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t10))); |
| |
| src_ptr += 11 * src_stride; |
| |
| do { |
| uint8x8_t t11, t12, t13, t14; |
| load_u8_8x4(src_ptr, src_stride, &t11, &t12, &t13, &t14); |
| |
| int16x4_t s11 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t11))); |
| int16x4_t s12 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t12))); |
| int16x4_t s13 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t13))); |
| int16x4_t s14 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t14))); |
| |
| int16x4_t d0 = convolve12_4_y(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, y_filter_0_7, y_filter_8_11); |
| int16x4_t d1 = convolve12_4_y(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, s12, y_filter_0_7, y_filter_8_11); |
| int16x4_t d2 = convolve12_4_y(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| s12, s13, y_filter_0_7, y_filter_8_11); |
| int16x4_t d3 = convolve12_4_y(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, s14, y_filter_0_7, y_filter_8_11); |
| |
| uint8x8_t d01 = vqrshrun_n_s16(vcombine_s16(d0, d1), FILTER_BITS); |
| uint8x8_t d23 = vqrshrun_n_s16(vcombine_s16(d2, d3), FILTER_BITS); |
| |
| store_u8x4_strided_x2(dst_ptr, dst_stride, d01); |
| store_u8x4_strided_x2(dst_ptr + 2 * dst_stride, dst_stride, d23); |
| |
| 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 { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int height = h; |
| |
| uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10; |
| load_u8_8x11(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7, &t8, |
| &t9, &t10); |
| int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); |
| int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); |
| int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t7)); |
| int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t8)); |
| int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t9)); |
| int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t10)); |
| |
| s += 11 * src_stride; |
| |
| do { |
| uint8x8_t t11, t12, t13, t14; |
| load_u8_8x4(s, src_stride, &t11, &t12, &t13, &t14); |
| |
| int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t11)); |
| int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t12)); |
| int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t13)); |
| int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t14)); |
| |
| uint8x8_t d0 = convolve12_8_y(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, |
| s10, s11, y_filter_0_7, y_filter_8_11); |
| uint8x8_t d1 = convolve12_8_y(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, s12, y_filter_0_7, y_filter_8_11); |
| uint8x8_t d2 = convolve12_8_y(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| s12, s13, y_filter_0_7, y_filter_8_11); |
| uint8x8_t d3 = convolve12_8_y(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| s13, s14, y_filter_0_7, y_filter_8_11); |
| |
| store_u8_8x4(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 * 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) { |
| if (w == 2 || h == 2) { |
| av1_convolve_y_sr_c(src, src_stride, dst, dst_stride, w, h, filter_params_y, |
| subpel_y_qn); |
| return; |
| } |
| |
| const int y_filter_taps = get_filter_tap(filter_params_y, subpel_y_qn); |
| const int clamped_y_taps = y_filter_taps < 4 ? 4 : y_filter_taps; |
| const int vert_offset = clamped_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 halve to reduce precision requirements. |
| const int16x8_t y_filter = vshrq_n_s16(vld1q_s16(y_filter_ptr), 1); |
| |
| if (y_filter_taps <= 4) { |
| convolve_y_sr_4tap_neon(src, src_stride, dst, dst_stride, w, h, |
| y_filter_ptr); |
| } else if (y_filter_taps == 6) { |
| convolve_y_sr_6tap_neon(src, src_stride, dst, dst_stride, w, h, y_filter); |
| } else { |
| convolve_y_sr_8tap_neon(src, src_stride, dst, dst_stride, w, h, y_filter); |
| } |
| } |
| |
| static INLINE int16x4_t |
| convolve12_4_2d_h(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 vshrn_n_s32(sum, 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; |
| // A 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 AOM_ARCH_AARCH64 |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| uint8x8_t t0, t1, t2, t3; |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_elems_inplace_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s1 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s2 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| int16x4_t s3 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| int16x4_t s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s5 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s6 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| int16x4_t s7 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| load_u8_8x4(s + 8, src_stride, &t0, &t1, &t2, &t3); |
| transpose_elems_inplace_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| int16x4_t s8 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s9 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| |
| s += 11; |
| |
| do { |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); |
| transpose_elems_inplace_u8_8x4(&t0, &t1, &t2, &t3); |
| |
| int16x4_t s11 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); |
| int16x4_t s12 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t1))); |
| int16x4_t s13 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t2))); |
| int16x4_t s14 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t3))); |
| |
| int16x4_t d0 = |
| convolve12_4_2d_h(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| int16x4_t d1 = |
| convolve12_4_2d_h(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| int16x4_t d2 = |
| convolve12_4_2d_h(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| int16x4_t d3 = |
| convolve12_4_2d_h(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| |
| transpose_elems_inplace_s16_4x4(&d0, &d1, &d2, &d3); |
| 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); |
| #endif // AOM_ARCH_AARCH64 |
| |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| uint8x16_t t0 = vld1q_u8(s); |
| int16x8_t tt0 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(t0))); |
| int16x8_t tt1 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(t0))); |
| |
| int16x4_t s0 = vget_low_s16(tt0); |
| int16x4_t s4 = vget_high_s16(tt0); |
| int16x4_t s8 = vget_low_s16(tt1); |
| int16x4_t s12 = vget_high_s16(tt1); |
| |
| int16x4_t s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4 |
| int16x4_t s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5 |
| int16x4_t s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6 |
| int16x4_t s5 = vext_s16(s4, s8, 1); // a5 a6 a7 a8 |
| int16x4_t s6 = vext_s16(s4, s8, 2); // a6 a7 a8 a9 |
| int16x4_t s7 = vext_s16(s4, s8, 3); // a7 a8 a9 a10 |
| int16x4_t s9 = vext_s16(s8, s12, 1); // a9 a10 a11 a12 |
| int16x4_t s10 = vext_s16(s8, s12, 2); // a10 a11 a12 a13 |
| int16x4_t s11 = vext_s16(s8, s12, 3); // a11 a12 a13 a14 |
| |
| int16x4_t d0 = |
| convolve12_4_2d_h(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| x_filter_0_7, x_filter_8_11, horiz_const); |
| vst1_s16(d, d0); |
| |
| s += 4; |
| d += 4; |
| width -= 4; |
| } while (width != 0); |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } while (--h != 0); |
| } |
| |
| static INLINE int16x8_t convolve4_8_2d_h(const int16x8_t s0, const int16x8_t s1, |
| const int16x8_t s2, const int16x8_t s3, |
| const int16x4_t filter, |
| const int16x8_t horiz_const) { |
| int16x8_t sum = vmlaq_lane_s16(horiz_const, s0, filter, 0); |
| sum = vmlaq_lane_s16(sum, s1, filter, 1); |
| sum = vmlaq_lane_s16(sum, s2, filter, 2); |
| sum = vmlaq_lane_s16(sum, s3, filter, 3); |
| // We halved the filter values so -1 from right shift. |
| return vshrq_n_s16(sum, ROUND0_BITS - 1); |
| } |
| |
| static INLINE void convolve_2d_sr_horiz_4tap_neon( |
| const uint8_t *src, ptrdiff_t src_stride, int16_t *dst, |
| ptrdiff_t dst_stride, int w, int h, const int16_t *filter_x) { |
| const int bd = 8; |
| // All filter values are even, halve to reduce intermediate precision |
| // requirements. |
| const int16x4_t filter = vshr_n_s16(vld1_s16(filter_x + 2), 1); |
| |
| // A 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 extra -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 (w == 4) { |
| do { |
| uint8x8_t t01[4]; |
| t01[0] = load_unaligned_u8(src + 0, (int)src_stride); |
| t01[1] = load_unaligned_u8(src + 1, (int)src_stride); |
| t01[2] = load_unaligned_u8(src + 2, (int)src_stride); |
| t01[3] = load_unaligned_u8(src + 3, (int)src_stride); |
| |
| int16x8_t s01[4]; |
| s01[0] = vreinterpretq_s16_u16(vmovl_u8(t01[0])); |
| s01[1] = vreinterpretq_s16_u16(vmovl_u8(t01[1])); |
| s01[2] = vreinterpretq_s16_u16(vmovl_u8(t01[2])); |
| s01[3] = vreinterpretq_s16_u16(vmovl_u8(t01[3])); |
| |
| int16x8_t d01 = |
| convolve4_8_2d_h(s01[0], s01[1], s01[2], s01[3], filter, horiz_const); |
| |
| store_s16x4_strided_x2(dst, (int)dst_stride, d01); |
| |
| src += 2 * src_stride; |
| dst += 2 * dst_stride; |
| h -= 2; |
| } while (h > 0); |
| } else { |
| do { |
| int width = w; |
| const uint8_t *s = src; |
| int16_t *d = dst; |
| |
| do { |
| uint8x8_t t0[4], t1[4]; |
| load_u8_8x4(s + 0 * src_stride, 1, &t0[0], &t0[1], &t0[2], &t0[3]); |
| load_u8_8x4(s + 1 * src_stride, 1, &t1[0], &t1[1], &t1[2], &t1[3]); |
| |
| int16x8_t s0[4]; |
| s0[0] = vreinterpretq_s16_u16(vmovl_u8(t0[0])); |
| s0[1] = vreinterpretq_s16_u16(vmovl_u8(t0[1])); |
| s0[2] = vreinterpretq_s16_u16(vmovl_u8(t0[2])); |
| s0[3] = vreinterpretq_s16_u16(vmovl_u8(t0[3])); |
| |
| int16x8_t s1[4]; |
| s1[0] = vreinterpretq_s16_u16(vmovl_u8(t1[0])); |
| s1[1] = vreinterpretq_s16_u16(vmovl_u8(t1[1])); |
| s1[2] = vreinterpretq_s16_u16(vmovl_u8(t1[2])); |
| s1[3] = vreinterpretq_s16_u16(vmovl_u8(t1[3])); |
| |
| int16x8_t d0 = |
| convolve4_8_2d_h(s0[0], s0[1], s0[2], s0[3], filter, horiz_const); |
| int16x8_t d1 = |
| convolve4_8_2d_h(s1[0], s1[1], s1[2], s1[3], filter, horiz_const); |
| |
| store_s16_8x2(d, dst_stride, d0, d1); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width != 0); |
| src += 2 * src_stride; |
| dst += 2 * dst_stride; |
| h -= 2; |
| } while (h > 2); |
| |
| do { |
| const uint8_t *s = src; |
| int16_t *d = dst; |
| int width = w; |
| |
| do { |
| uint8x8_t t0[4]; |
| load_u8_8x4(s, 1, &t0[0], &t0[1], &t0[2], &t0[3]); |
| |
| int16x8_t s0[4]; |
| s0[0] = vreinterpretq_s16_u16(vmovl_u8(t0[0])); |
| s0[1] = vreinterpretq_s16_u16(vmovl_u8(t0[1])); |
| s0[2] = vreinterpretq_s16_u16(vmovl_u8(t0[2])); |
| s0[3] = vreinterpretq_s16_u16(vmovl_u8(t0[3])); |
| |
| int16x8_t d0 = |
| convolve4_8_2d_h(s0[0], s0[1], s0[2], s0[3], filter, horiz_const); |
| |
| vst1q_s16(d, d0); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width != 0); |
| src += src_stride; |
| dst += dst_stride; |
| } while (--h != 0); |
| } |
| } |
| |
| static INLINE int16x8_t convolve8_8_2d_h(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 vshrq_n_s16(sum, ROUND0_BITS - 1); |
| } |
| |
| 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 int16_t *x_filter_ptr) { |
| 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; |
| |
| // A 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 extra -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))); |
| // Filter values are even, so halve to reduce intermediate precision reqs. |
| const int16x8_t x_filter = vshrq_n_s16(vld1q_s16(x_filter_ptr), 1); |
| |
| #if AOM_ARCH_AARCH64 |
| while (height > 8) { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7; |
| load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| |
| int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); |
| int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| int16x8_t 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_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); |
| |
| int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); |
| int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); |
| int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t4)); |
| int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t5)); |
| int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t6)); |
| int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t7)); |
| |
| int16x8_t d0 = convolve8_8_2d_h(s0, s1, s2, s3, s4, s5, s6, s7, x_filter, |
| horiz_const); |
| int16x8_t d1 = convolve8_8_2d_h(s1, s2, s3, s4, s5, s6, s7, s8, x_filter, |
| horiz_const); |
| int16x8_t d2 = convolve8_8_2d_h(s2, s3, s4, s5, s6, s7, s8, s9, x_filter, |
| horiz_const); |
| int16x8_t d3 = convolve8_8_2d_h(s3, s4, s5, s6, s7, s8, s9, s10, x_filter, |
| horiz_const); |
| int16x8_t d4 = convolve8_8_2d_h(s4, s5, s6, s7, s8, s9, s10, s11, |
| x_filter, horiz_const); |
| int16x8_t d5 = convolve8_8_2d_h(s5, s6, s7, s8, s9, s10, s11, s12, |
| x_filter, horiz_const); |
| int16x8_t d6 = convolve8_8_2d_h(s6, s7, s8, s9, s10, s11, s12, s13, |
| x_filter, horiz_const); |
| int16x8_t d7 = convolve8_8_2d_h(s7, s8, s9, s10, s11, s12, s13, s14, |
| x_filter, horiz_const); |
| |
| transpose_elems_inplace_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; |
| height -= 8; |
| } |
| #endif // AOM_ARCH_AARCH64 |
| |
| do { |
| const uint8_t *s = src_ptr; |
| int16_t *d = dst_ptr; |
| int width = w; |
| |
| uint8x8_t t0 = vld1_u8(s); // a0 a1 a2 a3 a4 a5 a6 a7 |
| int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); |
| |
| do { |
| uint8x8_t t1 = vld1_u8(s + 8); // a8 a9 a10 a11 a12 a13 a14 a15 |
| int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); |
| |
| int16x8_t s1 = vextq_s16(s0, s8, 1); // a1 a2 a3 a4 a5 a6 a7 a8 |
| int16x8_t s2 = vextq_s16(s0, s8, 2); // a2 a3 a4 a5 a6 a7 a8 a9 |
| int16x8_t s3 = vextq_s16(s0, s8, 3); // a3 a4 a5 a6 a7 a8 a9 a10 |
| int16x8_t s4 = vextq_s16(s0, s8, 4); // a4 a5 a6 a7 a8 a9 a10 a11 |
| int16x8_t s5 = vextq_s16(s0, s8, 5); // a5 a6 a7 a8 a9 a10 a11 a12 |
| int16x8_t s6 = vextq_s16(s0, s8, 6); // a6 a7 a8 a9 a10 a11 a12 a13 |
| int16x8_t s7 = vextq_s16(s0, s8, 7); // a7 a8 a9 a10 a11 a12 a13 a14 |
| |
| int16x8_t d0 = convolve8_8_2d_h(s0, s1, s2, s3, s4, s5, s6, s7, x_filter, |
| horiz_const); |
| |
| vst1q_s16(d, d0); |
| |
| s0 = s8; |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width != 0); |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } 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 (w == 2 || h == 2) { |
| 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; |
| } |
| |
| const int y_filter_taps = get_filter_tap(filter_params_y, subpel_y_qn); |
| const int x_filter_taps = get_filter_tap(filter_params_x, subpel_x_qn); |
| const int clamped_y_taps = y_filter_taps < 4 ? 4 : 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 + SUBPEL_TAPS - 1) * MAX_SB_SIZE]); |
| |
| if (x_filter_taps <= 4) { |
| convolve_2d_sr_horiz_4tap_neon(src_ptr + 2, src_stride, im_block, |
| im_stride, w, im_h, x_filter_ptr); |
| } else { |
| convolve_2d_sr_horiz_8tap_neon(src_ptr, src_stride, im_block, im_stride, |
| w, im_h, x_filter_ptr); |
| } |
| |
| const int16x8_t y_filter = vld1q_s16(y_filter_ptr); |
| |
| if (clamped_y_taps <= 4) { |
| convolve_2d_sr_vert_4tap_neon(im_block, im_stride, dst, dst_stride, w, h, |
| y_filter_ptr); |
| } else 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); |
| } |
| } |
| } |
| |
| void av1_convolve_x_sr_intrabc_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) { |
| assert(subpel_x_qn == 8); |
| assert(filter_params_x->taps == 2); |
| assert((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS); |
| (void)filter_params_x; |
| (void)subpel_x_qn; |
| (void)conv_params; |
| |
| if (w <= 4) { |
| do { |
| uint8x8_t s0_0 = vld1_u8(src); |
| uint8x8_t s0_1 = vld1_u8(src + 1); |
| uint8x8_t s1_0 = vld1_u8(src + src_stride); |
| uint8x8_t s1_1 = vld1_u8(src + src_stride + 1); |
| |
| uint8x8_t d0 = vrhadd_u8(s0_0, s0_1); |
| uint8x8_t d1 = vrhadd_u8(s1_0, s1_1); |
| |
| if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, d0); |
| store_u8_2x1(dst + 1 * dst_stride, d1); |
| } else { |
| store_u8_4x1(dst + 0 * dst_stride, d0); |
| store_u8_4x1(dst + 1 * dst_stride, d1); |
| } |
| |
| src += 2 * src_stride; |
| dst += 2 * dst_stride; |
| h -= 2; |
| } while (h != 0); |
| } else if (w == 8) { |
| do { |
| uint8x8_t s0_0 = vld1_u8(src); |
| uint8x8_t s0_1 = vld1_u8(src + 1); |
| uint8x8_t s1_0 = vld1_u8(src + src_stride); |
| uint8x8_t s1_1 = vld1_u8(src + src_stride + 1); |
| |
| uint8x8_t d0 = vrhadd_u8(s0_0, s0_1); |
| uint8x8_t d1 = vrhadd_u8(s1_0, s1_1); |
| |
| vst1_u8(dst, d0); |
| vst1_u8(dst + dst_stride, d1); |
| |
| src += 2 * src_stride; |
| dst += 2 * dst_stride; |
| h -= 2; |
| } while (h != 0); |
| } else { |
| do { |
| const uint8_t *src_ptr = src; |
| uint8_t *dst_ptr = dst; |
| int width = w; |
| |
| do { |
| uint8x16_t s0 = vld1q_u8(src_ptr); |
| uint8x16_t s1 = vld1q_u8(src_ptr + 1); |
| |
| uint8x16_t d0 = vrhaddq_u8(s0, s1); |
| |
| vst1q_u8(dst_ptr, d0); |
| |
| src_ptr += 16; |
| dst_ptr += 16; |
| width -= 16; |
| } while (width != 0); |
| src += src_stride; |
| dst += dst_stride; |
| } while (--h != 0); |
| } |
| } |
| |
| void av1_convolve_y_sr_intrabc_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) { |
| assert(subpel_y_qn == 8); |
| assert(filter_params_y->taps == 2); |
| (void)filter_params_y; |
| (void)subpel_y_qn; |
| |
| if (w <= 4) { |
| do { |
| uint8x8_t s0 = load_unaligned_u8_4x1(src); |
| uint8x8_t s1 = load_unaligned_u8_4x1(src + src_stride); |
| uint8x8_t s2 = load_unaligned_u8_4x1(src + 2 * src_stride); |
| |
| uint8x8_t d0 = vrhadd_u8(s0, s1); |
| uint8x8_t d1 = vrhadd_u8(s1, s2); |
| |
| if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, d0); |
| store_u8_2x1(dst + 1 * dst_stride, d1); |
| } else { |
| store_u8_4x1(dst + 0 * dst_stride, d0); |
| store_u8_4x1(dst + 1 * dst_stride, d1); |
| } |
| |
| src += 2 * src_stride; |
| dst += 2 * dst_stride; |
| h -= 2; |
| } while (h != 0); |
| } else if (w == 8) { |
| do { |
| uint8x8_t s0 = vld1_u8(src); |
| uint8x8_t s1 = vld1_u8(src + src_stride); |
| uint8x8_t s2 = vld1_u8(src + 2 * src_stride); |
| |
| uint8x8_t d0 = vrhadd_u8(s0, s1); |
| uint8x8_t d1 = vrhadd_u8(s1, s2); |
| |
| vst1_u8(dst, d0); |
| vst1_u8(dst + dst_stride, d1); |
| |
| src += 2 * src_stride; |
| dst += 2 * dst_stride; |
| h -= 2; |
| } while (h != 0); |
| } else { |
| do { |
| const uint8_t *src_ptr = src; |
| uint8_t *dst_ptr = dst; |
| int height = h; |
| |
| do { |
| uint8x16_t s0 = vld1q_u8(src_ptr); |
| uint8x16_t s1 = vld1q_u8(src_ptr + src_stride); |
| |
| uint8x16_t d0 = vrhaddq_u8(s0, s1); |
| |
| vst1q_u8(dst_ptr, d0); |
| |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } while (--height != 0); |
| src += 16; |
| dst += 16; |
| w -= 16; |
| } while (w != 0); |
| } |
| } |
| |
| void av1_convolve_2d_sr_intrabc_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) { |
| assert(subpel_x_qn == 8); |
| assert(subpel_y_qn == 8); |
| assert(filter_params_x->taps == 2 && filter_params_y->taps == 2); |
| assert((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS); |
| (void)filter_params_x; |
| (void)subpel_x_qn; |
| (void)filter_params_y; |
| (void)subpel_y_qn; |
| (void)conv_params; |
| |
| uint16_t im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]; |
| int im_h = h + 1; |
| int im_stride = w; |
| assert(w <= MAX_SB_SIZE && h <= MAX_SB_SIZE); |
| |
| uint16_t *im = im_block; |
| |
| // Horizontal filter. |
| if (w <= 4) { |
| do { |
| uint8x8_t s0 = vld1_u8(src); |
| uint8x8_t s1 = vld1_u8(src + 1); |
| |
| uint16x4_t sum = vget_low_u16(vaddl_u8(s0, s1)); |
| |
| // Safe to store the whole vector, the im buffer is big enough. |
| vst1_u16(im, sum); |
| |
| src += src_stride; |
| im += im_stride; |
| } while (--im_h != 0); |
| } else { |
| do { |
| const uint8_t *src_ptr = src; |
| uint16_t *im_ptr = im; |
| int width = w; |
| |
| do { |
| uint8x8_t s0 = vld1_u8(src_ptr); |
| uint8x8_t s1 = vld1_u8(src_ptr + 1); |
| |
| uint16x8_t sum = vaddl_u8(s0, s1); |
| |
| vst1q_u16(im_ptr, sum); |
| |
| src_ptr += 8; |
| im_ptr += 8; |
| width -= 8; |
| } while (width != 0); |
| src += src_stride; |
| im += im_stride; |
| } while (--im_h != 0); |
| } |
| |
| im = im_block; |
| |
| // Vertical filter. |
| if (w <= 4) { |
| do { |
| uint16x4_t s0 = vld1_u16(im); |
| uint16x4_t s1 = vld1_u16(im + im_stride); |
| uint16x4_t s2 = vld1_u16(im + 2 * im_stride); |
| |
| uint16x4_t sum0 = vadd_u16(s0, s1); |
| uint16x4_t sum1 = vadd_u16(s1, s2); |
| |
| uint8x8_t d0 = vqrshrn_n_u16(vcombine_u16(sum0, vdup_n_u16(0)), 2); |
| uint8x8_t d1 = vqrshrn_n_u16(vcombine_u16(sum1, vdup_n_u16(0)), 2); |
| |
| if (w == 2) { |
| store_u8_2x1(dst + 0 * dst_stride, d0); |
| store_u8_2x1(dst + 1 * dst_stride, d1); |
| } else { |
| store_u8_4x1(dst + 0 * dst_stride, d0); |
| store_u8_4x1(dst + 1 * dst_stride, d1); |
| } |
| |
| im += 2 * im_stride; |
| dst += 2 * dst_stride; |
| h -= 2; |
| } while (h != 0); |
| } else { |
| do { |
| uint16_t *im_ptr = im; |
| uint8_t *dst_ptr = dst; |
| int height = h; |
| |
| do { |
| uint16x8_t s0 = vld1q_u16(im_ptr); |
| uint16x8_t s1 = vld1q_u16(im_ptr + im_stride); |
| |
| uint16x8_t sum = vaddq_u16(s0, s1); |
| uint8x8_t d0 = vqrshrn_n_u16(sum, 2); |
| |
| vst1_u8(dst_ptr, d0); |
| |
| im_ptr += im_stride; |
| dst_ptr += dst_stride; |
| } while (--height != 0); |
| im += 8; |
| dst += 8; |
| w -= 8; |
| } while (w != 0); |
| } |
| } |
