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-rw-r--r--third_party/aom/av1/common/arm/convolve_neon.c1659
1 files changed, 1659 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/arm/convolve_neon.c b/third_party/aom/av1/common/arm/convolve_neon.c
new file mode 100644
index 0000000000..10442f9bf9
--- /dev/null
+++ b/third_party/aom/av1/common/arm/convolve_neon.c
@@ -0,0 +1,1659 @@
+/*
+ *
+ * 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_4_x(const int16x4_t s0, const int16x4_t s1,
+ const int16x4_t s2, const int16x4_t s3,
+ const int16x4_t filter,
+ const int16x4_t horiz_const) {
+ int16x4_t sum = horiz_const;
+ sum = vmla_lane_s16(sum, s0, filter, 0);
+ sum = vmla_lane_s16(sum, s1, filter, 1);
+ sum = vmla_lane_s16(sum, s2, filter, 2);
+ sum = vmla_lane_s16(sum, s3, filter, 3);
+
+ // We halved the convolution filter values so - 1 from the right shift.
+ return vqrshrun_n_s16(vcombine_s16(sum, vdup_n_s16(0)), FILTER_BITS - 1);
+}
+
+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);
+
+ if (filter_params_x->taps > 8) {
+ convolve_x_sr_12tap_neon(src, 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));
+
+ if (w <= 4) {
+ // 4-tap filters are used for blocks having width <= 4.
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x4_t x_filter = vshr_n_s16(vld1_s16(x_filter_ptr + 2), 1);
+
+ src += 2;
+
+ do {
+ uint8x8_t t0 = vld1_u8(src); // a0 a1 a2 a3 a4 a5 a6 a7
+ int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ int16x4_t s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+
+ 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
+
+ uint8x8_t d0 =
+ convolve4_4_x(s0, s1, s2, s3, x_filter, vget_low_s16(horiz_const));
+
+ store_u8_4x1(dst, d0);
+
+ src += src_stride;
+ dst += dst_stride;
+ } while (--h != 0);
+ } else {
+ // 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 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 < 6 ? 6 : 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 < 8) {
+ 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 int16x4_t convolve4_4_2d_h(const int16x4_t s0, const int16x4_t s1,
+ const int16x4_t s2, const int16x4_t s3,
+ const int16x4_t filter,
+ const int16x4_t horiz_const) {
+ int16x4_t sum = horiz_const;
+ sum = vmla_lane_s16(sum, s0, filter, 0);
+ sum = vmla_lane_s16(sum, s1, filter, 1);
+ sum = vmla_lane_s16(sum, s2, filter, 2);
+ sum = vmla_lane_s16(sum, s3, filter, 3);
+
+ // We halved the convolution filter values so -1 from the right shift.
+ return vshr_n_s16(sum, ROUND0_BITS - 1);
+}
+
+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_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;
+
+ if (w <= 4) {
+ // 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 int16x4_t horiz_const = vdup_n_s16((1 << (bd + FILTER_BITS - 2)) +
+ (1 << ((ROUND0_BITS - 1) - 1)));
+ // 4-tap filters are used for blocks having width <= 4.
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x4_t x_filter = vshr_n_s16(vld1_s16(x_filter_ptr + 2), 1);
+
+ src_ptr += 2;
+
+ do {
+ uint8x8_t t0 = vld1_u8(src_ptr); // a0 a1 a2 a3 a4 a5 a6 a7
+ int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ int16x4_t s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+
+ 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 d0 = convolve4_4_2d_h(s0, s1, s2, s3, x_filter, horiz_const);
+
+ vst1_s16(dst_ptr, d0);
+
+ src_ptr += src_stride;
+ dst_ptr += dst_stride;
+ } while (--height != 0);
+ } else {
+ // 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 clamped_y_taps = y_filter_taps < 6 ? 6 : y_filter_taps;
+ const int im_h = h + clamped_y_taps - 1;
+ const int im_stride = MAX_SB_SIZE;
+ const int vert_offset = clamped_y_taps / 2 - 1;
+ const int horiz_offset = filter_params_x->taps / 2 - 1;
+ const uint8_t *src_ptr = src - vert_offset * src_stride - horiz_offset;
+
+ const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel(
+ filter_params_x, subpel_x_qn & SUBPEL_MASK);
+ const int16_t *y_filter_ptr = av1_get_interp_filter_subpel_kernel(
+ filter_params_y, subpel_y_qn & SUBPEL_MASK);
+
+ if (filter_params_x->taps > 8) {
+ DECLARE_ALIGNED(16, int16_t,
+ im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]);
+
+ const int16x8_t x_filter_0_7 = vld1q_s16(x_filter_ptr);
+ const int16x4_t x_filter_8_11 = vld1_s16(x_filter_ptr + 8);
+ const int16x8_t y_filter_0_7 = vld1q_s16(y_filter_ptr);
+ const int16x4_t y_filter_8_11 = vld1_s16(y_filter_ptr + 8);
+
+ convolve_2d_sr_horiz_12tap_neon(src_ptr, src_stride, im_block, im_stride, w,
+ im_h, x_filter_0_7, x_filter_8_11);
+
+ convolve_2d_sr_vert_12tap_neon(im_block, im_stride, dst, dst_stride, w, h,
+ y_filter_0_7, y_filter_8_11);
+ } else {
+ DECLARE_ALIGNED(16, int16_t,
+ im_block[(MAX_SB_SIZE + SUBPEL_TAPS - 1) * MAX_SB_SIZE]);
+
+ convolve_2d_sr_horiz_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 <= 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);
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-27 09:04:03 +0000