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-rw-r--r--third_party/aom/av1/common/arm/warp_plane_neon.c714
1 files changed, 714 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/arm/warp_plane_neon.c b/third_party/aom/av1/common/arm/warp_plane_neon.c
new file mode 100644
index 0000000000..7f02d42a73
--- /dev/null
+++ b/third_party/aom/av1/common/arm/warp_plane_neon.c
@@ -0,0 +1,714 @@
+/*
+ * 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 <memory.h>
+#include <math.h>
+
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_ports/mem.h"
+#include "config/av1_rtcd.h"
+#include "av1/common/warped_motion.h"
+#include "av1/common/scale.h"
+
+/* This is a modified version of 'warped_filter' from warped_motion.c:
+ * Each coefficient is stored in 8 bits instead of 16 bits
+ * The coefficients are rearranged in the column order 0, 2, 4, 6, 1, 3, 5, 7
+
+ This is done in order to avoid overflow: Since the tap with the largest
+ coefficient could be any of taps 2, 3, 4 or 5, we can't use the summation
+ order ((0 + 1) + (4 + 5)) + ((2 + 3) + (6 + 7)) used in the regular
+ convolve functions.
+
+ Instead, we use the summation order
+ ((0 + 2) + (4 + 6)) + ((1 + 3) + (5 + 7)).
+ The rearrangement of coefficients in this table is so that we can get the
+ coefficients into the correct order more quickly.
+*/
+/* clang-format off */
+DECLARE_ALIGNED(8, static const int8_t,
+ filter_8bit_neon[WARPEDPIXEL_PREC_SHIFTS * 3 + 1][8]) = {
+#if WARPEDPIXEL_PREC_BITS == 6
+ // [-1, 0)
+ { 0, 127, 0, 0, 0, 1, 0, 0}, { 0, 127, 0, 0, -1, 2, 0, 0},
+ { 1, 127, -1, 0, -3, 4, 0, 0}, { 1, 126, -2, 0, -4, 6, 1, 0},
+ { 1, 126, -3, 0, -5, 8, 1, 0}, { 1, 125, -4, 0, -6, 11, 1, 0},
+ { 1, 124, -4, 0, -7, 13, 1, 0}, { 2, 123, -5, 0, -8, 15, 1, 0},
+ { 2, 122, -6, 0, -9, 18, 1, 0}, { 2, 121, -6, 0, -10, 20, 1, 0},
+ { 2, 120, -7, 0, -11, 22, 2, 0}, { 2, 119, -8, 0, -12, 25, 2, 0},
+ { 3, 117, -8, 0, -13, 27, 2, 0}, { 3, 116, -9, 0, -13, 29, 2, 0},
+ { 3, 114, -10, 0, -14, 32, 3, 0}, { 3, 113, -10, 0, -15, 35, 2, 0},
+ { 3, 111, -11, 0, -15, 37, 3, 0}, { 3, 109, -11, 0, -16, 40, 3, 0},
+ { 3, 108, -12, 0, -16, 42, 3, 0}, { 4, 106, -13, 0, -17, 45, 3, 0},
+ { 4, 104, -13, 0, -17, 47, 3, 0}, { 4, 102, -14, 0, -17, 50, 3, 0},
+ { 4, 100, -14, 0, -17, 52, 3, 0}, { 4, 98, -15, 0, -18, 55, 4, 0},
+ { 4, 96, -15, 0, -18, 58, 3, 0}, { 4, 94, -16, 0, -18, 60, 4, 0},
+ { 4, 91, -16, 0, -18, 63, 4, 0}, { 4, 89, -16, 0, -18, 65, 4, 0},
+ { 4, 87, -17, 0, -18, 68, 4, 0}, { 4, 85, -17, 0, -18, 70, 4, 0},
+ { 4, 82, -17, 0, -18, 73, 4, 0}, { 4, 80, -17, 0, -18, 75, 4, 0},
+ { 4, 78, -18, 0, -18, 78, 4, 0}, { 4, 75, -18, 0, -17, 80, 4, 0},
+ { 4, 73, -18, 0, -17, 82, 4, 0}, { 4, 70, -18, 0, -17, 85, 4, 0},
+ { 4, 68, -18, 0, -17, 87, 4, 0}, { 4, 65, -18, 0, -16, 89, 4, 0},
+ { 4, 63, -18, 0, -16, 91, 4, 0}, { 4, 60, -18, 0, -16, 94, 4, 0},
+ { 3, 58, -18, 0, -15, 96, 4, 0}, { 4, 55, -18, 0, -15, 98, 4, 0},
+ { 3, 52, -17, 0, -14, 100, 4, 0}, { 3, 50, -17, 0, -14, 102, 4, 0},
+ { 3, 47, -17, 0, -13, 104, 4, 0}, { 3, 45, -17, 0, -13, 106, 4, 0},
+ { 3, 42, -16, 0, -12, 108, 3, 0}, { 3, 40, -16, 0, -11, 109, 3, 0},
+ { 3, 37, -15, 0, -11, 111, 3, 0}, { 2, 35, -15, 0, -10, 113, 3, 0},
+ { 3, 32, -14, 0, -10, 114, 3, 0}, { 2, 29, -13, 0, -9, 116, 3, 0},
+ { 2, 27, -13, 0, -8, 117, 3, 0}, { 2, 25, -12, 0, -8, 119, 2, 0},
+ { 2, 22, -11, 0, -7, 120, 2, 0}, { 1, 20, -10, 0, -6, 121, 2, 0},
+ { 1, 18, -9, 0, -6, 122, 2, 0}, { 1, 15, -8, 0, -5, 123, 2, 0},
+ { 1, 13, -7, 0, -4, 124, 1, 0}, { 1, 11, -6, 0, -4, 125, 1, 0},
+ { 1, 8, -5, 0, -3, 126, 1, 0}, { 1, 6, -4, 0, -2, 126, 1, 0},
+ { 0, 4, -3, 0, -1, 127, 1, 0}, { 0, 2, -1, 0, 0, 127, 0, 0},
+ // [0, 1)
+ { 0, 0, 1, 0, 0, 127, 0, 0}, { 0, -1, 2, 0, 0, 127, 0, 0},
+ { 0, -3, 4, 1, 1, 127, -2, 0}, { 0, -5, 6, 1, 1, 127, -2, 0},
+ { 0, -6, 8, 1, 2, 126, -3, 0}, {-1, -7, 11, 2, 2, 126, -4, -1},
+ {-1, -8, 13, 2, 3, 125, -5, -1}, {-1, -10, 16, 3, 3, 124, -6, -1},
+ {-1, -11, 18, 3, 4, 123, -7, -1}, {-1, -12, 20, 3, 4, 122, -7, -1},
+ {-1, -13, 23, 3, 4, 121, -8, -1}, {-2, -14, 25, 4, 5, 120, -9, -1},
+ {-1, -15, 27, 4, 5, 119, -10, -1}, {-1, -16, 30, 4, 5, 118, -11, -1},
+ {-2, -17, 33, 5, 6, 116, -12, -1}, {-2, -17, 35, 5, 6, 114, -12, -1},
+ {-2, -18, 38, 5, 6, 113, -13, -1}, {-2, -19, 41, 6, 7, 111, -14, -2},
+ {-2, -19, 43, 6, 7, 110, -15, -2}, {-2, -20, 46, 6, 7, 108, -15, -2},
+ {-2, -20, 49, 6, 7, 106, -16, -2}, {-2, -21, 51, 7, 7, 104, -16, -2},
+ {-2, -21, 54, 7, 7, 102, -17, -2}, {-2, -21, 56, 7, 8, 100, -18, -2},
+ {-2, -22, 59, 7, 8, 98, -18, -2}, {-2, -22, 62, 7, 8, 96, -19, -2},
+ {-2, -22, 64, 7, 8, 94, -19, -2}, {-2, -22, 67, 8, 8, 91, -20, -2},
+ {-2, -22, 69, 8, 8, 89, -20, -2}, {-2, -22, 72, 8, 8, 87, -21, -2},
+ {-2, -21, 74, 8, 8, 84, -21, -2}, {-2, -22, 77, 8, 8, 82, -21, -2},
+ {-2, -21, 79, 8, 8, 79, -21, -2}, {-2, -21, 82, 8, 8, 77, -22, -2},
+ {-2, -21, 84, 8, 8, 74, -21, -2}, {-2, -21, 87, 8, 8, 72, -22, -2},
+ {-2, -20, 89, 8, 8, 69, -22, -2}, {-2, -20, 91, 8, 8, 67, -22, -2},
+ {-2, -19, 94, 8, 7, 64, -22, -2}, {-2, -19, 96, 8, 7, 62, -22, -2},
+ {-2, -18, 98, 8, 7, 59, -22, -2}, {-2, -18, 100, 8, 7, 56, -21, -2},
+ {-2, -17, 102, 7, 7, 54, -21, -2}, {-2, -16, 104, 7, 7, 51, -21, -2},
+ {-2, -16, 106, 7, 6, 49, -20, -2}, {-2, -15, 108, 7, 6, 46, -20, -2},
+ {-2, -15, 110, 7, 6, 43, -19, -2}, {-2, -14, 111, 7, 6, 41, -19, -2},
+ {-1, -13, 113, 6, 5, 38, -18, -2}, {-1, -12, 114, 6, 5, 35, -17, -2},
+ {-1, -12, 116, 6, 5, 33, -17, -2}, {-1, -11, 118, 5, 4, 30, -16, -1},
+ {-1, -10, 119, 5, 4, 27, -15, -1}, {-1, -9, 120, 5, 4, 25, -14, -2},
+ {-1, -8, 121, 4, 3, 23, -13, -1}, {-1, -7, 122, 4, 3, 20, -12, -1},
+ {-1, -7, 123, 4, 3, 18, -11, -1}, {-1, -6, 124, 3, 3, 16, -10, -1},
+ {-1, -5, 125, 3, 2, 13, -8, -1}, {-1, -4, 126, 2, 2, 11, -7, -1},
+ { 0, -3, 126, 2, 1, 8, -6, 0}, { 0, -2, 127, 1, 1, 6, -5, 0},
+ { 0, -2, 127, 1, 1, 4, -3, 0}, { 0, 0, 127, 0, 0, 2, -1, 0},
+ // [1, 2)
+ { 0, 0, 127, 0, 0, 1, 0, 0}, { 0, 0, 127, 0, 0, -1, 2, 0},
+ { 0, 1, 127, -1, 0, -3, 4, 0}, { 0, 1, 126, -2, 0, -4, 6, 1},
+ { 0, 1, 126, -3, 0, -5, 8, 1}, { 0, 1, 125, -4, 0, -6, 11, 1},
+ { 0, 1, 124, -4, 0, -7, 13, 1}, { 0, 2, 123, -5, 0, -8, 15, 1},
+ { 0, 2, 122, -6, 0, -9, 18, 1}, { 0, 2, 121, -6, 0, -10, 20, 1},
+ { 0, 2, 120, -7, 0, -11, 22, 2}, { 0, 2, 119, -8, 0, -12, 25, 2},
+ { 0, 3, 117, -8, 0, -13, 27, 2}, { 0, 3, 116, -9, 0, -13, 29, 2},
+ { 0, 3, 114, -10, 0, -14, 32, 3}, { 0, 3, 113, -10, 0, -15, 35, 2},
+ { 0, 3, 111, -11, 0, -15, 37, 3}, { 0, 3, 109, -11, 0, -16, 40, 3},
+ { 0, 3, 108, -12, 0, -16, 42, 3}, { 0, 4, 106, -13, 0, -17, 45, 3},
+ { 0, 4, 104, -13, 0, -17, 47, 3}, { 0, 4, 102, -14, 0, -17, 50, 3},
+ { 0, 4, 100, -14, 0, -17, 52, 3}, { 0, 4, 98, -15, 0, -18, 55, 4},
+ { 0, 4, 96, -15, 0, -18, 58, 3}, { 0, 4, 94, -16, 0, -18, 60, 4},
+ { 0, 4, 91, -16, 0, -18, 63, 4}, { 0, 4, 89, -16, 0, -18, 65, 4},
+ { 0, 4, 87, -17, 0, -18, 68, 4}, { 0, 4, 85, -17, 0, -18, 70, 4},
+ { 0, 4, 82, -17, 0, -18, 73, 4}, { 0, 4, 80, -17, 0, -18, 75, 4},
+ { 0, 4, 78, -18, 0, -18, 78, 4}, { 0, 4, 75, -18, 0, -17, 80, 4},
+ { 0, 4, 73, -18, 0, -17, 82, 4}, { 0, 4, 70, -18, 0, -17, 85, 4},
+ { 0, 4, 68, -18, 0, -17, 87, 4}, { 0, 4, 65, -18, 0, -16, 89, 4},
+ { 0, 4, 63, -18, 0, -16, 91, 4}, { 0, 4, 60, -18, 0, -16, 94, 4},
+ { 0, 3, 58, -18, 0, -15, 96, 4}, { 0, 4, 55, -18, 0, -15, 98, 4},
+ { 0, 3, 52, -17, 0, -14, 100, 4}, { 0, 3, 50, -17, 0, -14, 102, 4},
+ { 0, 3, 47, -17, 0, -13, 104, 4}, { 0, 3, 45, -17, 0, -13, 106, 4},
+ { 0, 3, 42, -16, 0, -12, 108, 3}, { 0, 3, 40, -16, 0, -11, 109, 3},
+ { 0, 3, 37, -15, 0, -11, 111, 3}, { 0, 2, 35, -15, 0, -10, 113, 3},
+ { 0, 3, 32, -14, 0, -10, 114, 3}, { 0, 2, 29, -13, 0, -9, 116, 3},
+ { 0, 2, 27, -13, 0, -8, 117, 3}, { 0, 2, 25, -12, 0, -8, 119, 2},
+ { 0, 2, 22, -11, 0, -7, 120, 2}, { 0, 1, 20, -10, 0, -6, 121, 2},
+ { 0, 1, 18, -9, 0, -6, 122, 2}, { 0, 1, 15, -8, 0, -5, 123, 2},
+ { 0, 1, 13, -7, 0, -4, 124, 1}, { 0, 1, 11, -6, 0, -4, 125, 1},
+ { 0, 1, 8, -5, 0, -3, 126, 1}, { 0, 1, 6, -4, 0, -2, 126, 1},
+ { 0, 0, 4, -3, 0, -1, 127, 1}, { 0, 0, 2, -1, 0, 0, 127, 0},
+ // dummy (replicate row index 191)
+ { 0, 0, 2, -1, 0, 0, 127, 0},
+
+#else
+ // [-1, 0)
+ { 0, 127, 0, 0, 0, 1, 0, 0}, { 1, 127, -1, 0, -3, 4, 0, 0},
+ { 1, 126, -3, 0, -5, 8, 1, 0}, { 1, 124, -4, 0, -7, 13, 1, 0},
+ { 2, 122, -6, 0, -9, 18, 1, 0}, { 2, 120, -7, 0, -11, 22, 2, 0},
+ { 3, 117, -8, 0, -13, 27, 2, 0}, { 3, 114, -10, 0, -14, 32, 3, 0},
+ { 3, 111, -11, 0, -15, 37, 3, 0}, { 3, 108, -12, 0, -16, 42, 3, 0},
+ { 4, 104, -13, 0, -17, 47, 3, 0}, { 4, 100, -14, 0, -17, 52, 3, 0},
+ { 4, 96, -15, 0, -18, 58, 3, 0}, { 4, 91, -16, 0, -18, 63, 4, 0},
+ { 4, 87, -17, 0, -18, 68, 4, 0}, { 4, 82, -17, 0, -18, 73, 4, 0},
+ { 4, 78, -18, 0, -18, 78, 4, 0}, { 4, 73, -18, 0, -17, 82, 4, 0},
+ { 4, 68, -18, 0, -17, 87, 4, 0}, { 4, 63, -18, 0, -16, 91, 4, 0},
+ { 3, 58, -18, 0, -15, 96, 4, 0}, { 3, 52, -17, 0, -14, 100, 4, 0},
+ { 3, 47, -17, 0, -13, 104, 4, 0}, { 3, 42, -16, 0, -12, 108, 3, 0},
+ { 3, 37, -15, 0, -11, 111, 3, 0}, { 3, 32, -14, 0, -10, 114, 3, 0},
+ { 2, 27, -13, 0, -8, 117, 3, 0}, { 2, 22, -11, 0, -7, 120, 2, 0},
+ { 1, 18, -9, 0, -6, 122, 2, 0}, { 1, 13, -7, 0, -4, 124, 1, 0},
+ { 1, 8, -5, 0, -3, 126, 1, 0}, { 0, 4, -3, 0, -1, 127, 1, 0},
+ // [0, 1)
+ { 0, 0, 1, 0, 0, 127, 0, 0}, { 0, -3, 4, 1, 1, 127, -2, 0},
+ { 0, -6, 8, 1, 2, 126, -3, 0}, {-1, -8, 13, 2, 3, 125, -5, -1},
+ {-1, -11, 18, 3, 4, 123, -7, -1}, {-1, -13, 23, 3, 4, 121, -8, -1},
+ {-1, -15, 27, 4, 5, 119, -10, -1}, {-2, -17, 33, 5, 6, 116, -12, -1},
+ {-2, -18, 38, 5, 6, 113, -13, -1}, {-2, -19, 43, 6, 7, 110, -15, -2},
+ {-2, -20, 49, 6, 7, 106, -16, -2}, {-2, -21, 54, 7, 7, 102, -17, -2},
+ {-2, -22, 59, 7, 8, 98, -18, -2}, {-2, -22, 64, 7, 8, 94, -19, -2},
+ {-2, -22, 69, 8, 8, 89, -20, -2}, {-2, -21, 74, 8, 8, 84, -21, -2},
+ {-2, -21, 79, 8, 8, 79, -21, -2}, {-2, -21, 84, 8, 8, 74, -21, -2},
+ {-2, -20, 89, 8, 8, 69, -22, -2}, {-2, -19, 94, 8, 7, 64, -22, -2},
+ {-2, -18, 98, 8, 7, 59, -22, -2}, {-2, -17, 102, 7, 7, 54, -21, -2},
+ {-2, -16, 106, 7, 6, 49, -20, -2}, {-2, -15, 110, 7, 6, 43, -19, -2},
+ {-1, -13, 113, 6, 5, 38, -18, -2}, {-1, -12, 116, 6, 5, 33, -17, -2},
+ {-1, -10, 119, 5, 4, 27, -15, -1}, {-1, -8, 121, 4, 3, 23, -13, -1},
+ {-1, -7, 123, 4, 3, 18, -11, -1}, {-1, -5, 125, 3, 2, 13, -8, -1},
+ { 0, -3, 126, 2, 1, 8, -6, 0}, { 0, -2, 127, 1, 1, 4, -3, 0},
+ // [1, 2)
+ { 0, 0, 127, 0, 0, 1, 0, 0}, { 0, 1, 127, -1, 0, -3, 4, 0},
+ { 0, 1, 126, -3, 0, -5, 8, 1}, { 0, 1, 124, -4, 0, -7, 13, 1},
+ { 0, 2, 122, -6, 0, -9, 18, 1}, { 0, 2, 120, -7, 0, -11, 22, 2},
+ { 0, 3, 117, -8, 0, -13, 27, 2}, { 0, 3, 114, -10, 0, -14, 32, 3},
+ { 0, 3, 111, -11, 0, -15, 37, 3}, { 0, 3, 108, -12, 0, -16, 42, 3},
+ { 0, 4, 104, -13, 0, -17, 47, 3}, { 0, 4, 100, -14, 0, -17, 52, 3},
+ { 0, 4, 96, -15, 0, -18, 58, 3}, { 0, 4, 91, -16, 0, -18, 63, 4},
+ { 0, 4, 87, -17, 0, -18, 68, 4}, { 0, 4, 82, -17, 0, -18, 73, 4},
+ { 0, 4, 78, -18, 0, -18, 78, 4}, { 0, 4, 73, -18, 0, -17, 82, 4},
+ { 0, 4, 68, -18, 0, -17, 87, 4}, { 0, 4, 63, -18, 0, -16, 91, 4},
+ { 0, 3, 58, -18, 0, -15, 96, 4}, { 0, 3, 52, -17, 0, -14, 100, 4},
+ { 0, 3, 47, -17, 0, -13, 104, 4}, { 0, 3, 42, -16, 0, -12, 108, 3},
+ { 0, 3, 37, -15, 0, -11, 111, 3}, { 0, 3, 32, -14, 0, -10, 114, 3},
+ { 0, 2, 27, -13, 0, -8, 117, 3}, { 0, 2, 22, -11, 0, -7, 120, 2},
+ { 0, 1, 18, -9, 0, -6, 122, 2}, { 0, 1, 13, -7, 0, -4, 124, 1},
+ { 0, 1, 8, -5, 0, -3, 126, 1}, { 0, 0, 4, -3, 0, -1, 127, 1},
+ // dummy (replicate row index 95)
+ { 0, 0, 4, -3, 0, -1, 127, 1},
+#endif // WARPEDPIXEL_PREC_BITS == 6
+};
+/* clang-format on */
+
+static INLINE void convolve(int32x2x2_t x0, int32x2x2_t x1, uint8x8_t src_0,
+ uint8x8_t src_1, int16x4_t *res) {
+ int16x8_t coeff_0, coeff_1;
+ int16x8_t pix_0, pix_1;
+
+ coeff_0 = vcombine_s16(vreinterpret_s16_s32(x0.val[0]),
+ vreinterpret_s16_s32(x1.val[0]));
+ coeff_1 = vcombine_s16(vreinterpret_s16_s32(x0.val[1]),
+ vreinterpret_s16_s32(x1.val[1]));
+
+ pix_0 = vreinterpretq_s16_u16(vmovl_u8(src_0));
+ pix_0 = vmulq_s16(coeff_0, pix_0);
+
+ pix_1 = vreinterpretq_s16_u16(vmovl_u8(src_1));
+ pix_0 = vmlaq_s16(pix_0, coeff_1, pix_1);
+
+ *res = vpadd_s16(vget_low_s16(pix_0), vget_high_s16(pix_0));
+}
+
+static INLINE void horizontal_filter_neon(uint8x16_t src_1, uint8x16_t src_2,
+ uint8x16_t src_3, uint8x16_t src_4,
+ int16x8_t *tmp_dst, int sx, int alpha,
+ int k, const int offset_bits_horiz,
+ const int reduce_bits_horiz) {
+ const uint8x16_t mask = { 255, 0, 255, 0, 255, 0, 255, 0,
+ 255, 0, 255, 0, 255, 0, 255, 0 };
+ const int32x4_t add_const = vdupq_n_s32((int32_t)(1 << offset_bits_horiz));
+ const int16x8_t shift = vdupq_n_s16(-(int16_t)reduce_bits_horiz);
+
+ int16x8_t f0, f1, f2, f3, f4, f5, f6, f7;
+ int32x2x2_t b0, b1;
+ uint8x8_t src_1_low, src_2_low, src_3_low, src_4_low, src_5_low, src_6_low;
+ int32x4_t tmp_res_low, tmp_res_high;
+ uint16x8_t res;
+ int16x4_t res_0246_even, res_0246_odd, res_1357_even, res_1357_odd;
+
+ uint8x16_t tmp_0 = vandq_u8(src_1, mask);
+ uint8x16_t tmp_1 = vandq_u8(src_2, mask);
+ uint8x16_t tmp_2 = vandq_u8(src_3, mask);
+ uint8x16_t tmp_3 = vandq_u8(src_4, mask);
+
+ tmp_2 = vextq_u8(tmp_0, tmp_0, 1);
+ tmp_3 = vextq_u8(tmp_1, tmp_1, 1);
+
+ src_1 = vaddq_u8(tmp_0, tmp_2);
+ src_2 = vaddq_u8(tmp_1, tmp_3);
+
+ src_1_low = vget_low_u8(src_1);
+ src_2_low = vget_low_u8(src_2);
+ src_3_low = vget_low_u8(vextq_u8(src_1, src_1, 4));
+ src_4_low = vget_low_u8(vextq_u8(src_2, src_2, 4));
+ src_5_low = vget_low_u8(vextq_u8(src_1, src_1, 2));
+ src_6_low = vget_low_u8(vextq_u8(src_1, src_1, 6));
+
+ // Loading the 8 filter taps
+ f0 = vmovl_s8(
+ vld1_s8(filter_8bit_neon[(sx + 0 * alpha) >> WARPEDDIFF_PREC_BITS]));
+ f1 = vmovl_s8(
+ vld1_s8(filter_8bit_neon[(sx + 1 * alpha) >> WARPEDDIFF_PREC_BITS]));
+ f2 = vmovl_s8(
+ vld1_s8(filter_8bit_neon[(sx + 2 * alpha) >> WARPEDDIFF_PREC_BITS]));
+ f3 = vmovl_s8(
+ vld1_s8(filter_8bit_neon[(sx + 3 * alpha) >> WARPEDDIFF_PREC_BITS]));
+ f4 = vmovl_s8(
+ vld1_s8(filter_8bit_neon[(sx + 4 * alpha) >> WARPEDDIFF_PREC_BITS]));
+ f5 = vmovl_s8(
+ vld1_s8(filter_8bit_neon[(sx + 5 * alpha) >> WARPEDDIFF_PREC_BITS]));
+ f6 = vmovl_s8(
+ vld1_s8(filter_8bit_neon[(sx + 6 * alpha) >> WARPEDDIFF_PREC_BITS]));
+ f7 = vmovl_s8(
+ vld1_s8(filter_8bit_neon[(sx + 7 * alpha) >> WARPEDDIFF_PREC_BITS]));
+
+ b0 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(f0)),
+ vreinterpret_s32_s16(vget_low_s16(f2)));
+ b1 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(f4)),
+ vreinterpret_s32_s16(vget_low_s16(f6)));
+ convolve(b0, b1, src_1_low, src_3_low, &res_0246_even);
+
+ b0 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(f1)),
+ vreinterpret_s32_s16(vget_low_s16(f3)));
+ b1 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(f5)),
+ vreinterpret_s32_s16(vget_low_s16(f7)));
+ convolve(b0, b1, src_2_low, src_4_low, &res_0246_odd);
+
+ b0 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(f0)),
+ vreinterpret_s32_s16(vget_high_s16(f2)));
+ b1 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(f4)),
+ vreinterpret_s32_s16(vget_high_s16(f6)));
+ convolve(b0, b1, src_2_low, src_4_low, &res_1357_even);
+
+ b0 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(f1)),
+ vreinterpret_s32_s16(vget_high_s16(f3)));
+ b1 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(f5)),
+ vreinterpret_s32_s16(vget_high_s16(f7)));
+ convolve(b0, b1, src_5_low, src_6_low, &res_1357_odd);
+
+ tmp_res_low = vaddl_s16(res_0246_even, res_1357_even);
+ tmp_res_high = vaddl_s16(res_0246_odd, res_1357_odd);
+
+ tmp_res_low = vaddq_s32(tmp_res_low, add_const);
+ tmp_res_high = vaddq_s32(tmp_res_high, add_const);
+
+ res = vcombine_u16(vqmovun_s32(tmp_res_low), vqmovun_s32(tmp_res_high));
+ res = vqrshlq_u16(res, shift);
+
+ tmp_dst[k + 7] = vreinterpretq_s16_u16(res);
+}
+
+static INLINE void vertical_filter_neon(const int16x8_t *src,
+ int32x4_t *res_low, int32x4_t *res_high,
+ int sy, int gamma) {
+ int16x4_t src_0, src_1, fltr_0, fltr_1;
+ int32x4_t res_0, res_1;
+ int32x2_t res_0_im, res_1_im;
+ int32x4_t res_even, res_odd, im_res_0, im_res_1;
+
+ int16x8_t f0, f1, f2, f3, f4, f5, f6, f7;
+ int16x8x2_t b0, b1, b2, b3;
+ int32x4x2_t c0, c1, c2, c3;
+ int32x4x2_t d0, d1, d2, d3;
+
+ b0 = vtrnq_s16(src[0], src[1]);
+ b1 = vtrnq_s16(src[2], src[3]);
+ b2 = vtrnq_s16(src[4], src[5]);
+ b3 = vtrnq_s16(src[6], src[7]);
+
+ c0 = vtrnq_s32(vreinterpretq_s32_s16(b0.val[0]),
+ vreinterpretq_s32_s16(b0.val[1]));
+ c1 = vtrnq_s32(vreinterpretq_s32_s16(b1.val[0]),
+ vreinterpretq_s32_s16(b1.val[1]));
+ c2 = vtrnq_s32(vreinterpretq_s32_s16(b2.val[0]),
+ vreinterpretq_s32_s16(b2.val[1]));
+ c3 = vtrnq_s32(vreinterpretq_s32_s16(b3.val[0]),
+ vreinterpretq_s32_s16(b3.val[1]));
+
+ f0 = vld1q_s16(
+ (int16_t *)(warped_filter + ((sy + 0 * gamma) >> WARPEDDIFF_PREC_BITS)));
+ f1 = vld1q_s16(
+ (int16_t *)(warped_filter + ((sy + 1 * gamma) >> WARPEDDIFF_PREC_BITS)));
+ f2 = vld1q_s16(
+ (int16_t *)(warped_filter + ((sy + 2 * gamma) >> WARPEDDIFF_PREC_BITS)));
+ f3 = vld1q_s16(
+ (int16_t *)(warped_filter + ((sy + 3 * gamma) >> WARPEDDIFF_PREC_BITS)));
+ f4 = vld1q_s16(
+ (int16_t *)(warped_filter + ((sy + 4 * gamma) >> WARPEDDIFF_PREC_BITS)));
+ f5 = vld1q_s16(
+ (int16_t *)(warped_filter + ((sy + 5 * gamma) >> WARPEDDIFF_PREC_BITS)));
+ f6 = vld1q_s16(
+ (int16_t *)(warped_filter + ((sy + 6 * gamma) >> WARPEDDIFF_PREC_BITS)));
+ f7 = vld1q_s16(
+ (int16_t *)(warped_filter + ((sy + 7 * gamma) >> WARPEDDIFF_PREC_BITS)));
+
+ d0 = vtrnq_s32(vreinterpretq_s32_s16(f0), vreinterpretq_s32_s16(f2));
+ d1 = vtrnq_s32(vreinterpretq_s32_s16(f4), vreinterpretq_s32_s16(f6));
+ d2 = vtrnq_s32(vreinterpretq_s32_s16(f1), vreinterpretq_s32_s16(f3));
+ d3 = vtrnq_s32(vreinterpretq_s32_s16(f5), vreinterpretq_s32_s16(f7));
+
+ // row:0,1 even_col:0,2
+ src_0 = vget_low_s16(vreinterpretq_s16_s32(c0.val[0]));
+ fltr_0 = vget_low_s16(vreinterpretq_s16_s32(d0.val[0]));
+ res_0 = vmull_s16(src_0, fltr_0);
+
+ // row:0,1,2,3 even_col:0,2
+ src_0 = vget_low_s16(vreinterpretq_s16_s32(c1.val[0]));
+ fltr_0 = vget_low_s16(vreinterpretq_s16_s32(d0.val[1]));
+ res_0 = vmlal_s16(res_0, src_0, fltr_0);
+ res_0_im = vpadd_s32(vget_low_s32(res_0), vget_high_s32(res_0));
+
+ // row:0,1 even_col:4,6
+ src_1 = vget_low_s16(vreinterpretq_s16_s32(c0.val[1]));
+ fltr_1 = vget_low_s16(vreinterpretq_s16_s32(d1.val[0]));
+ res_1 = vmull_s16(src_1, fltr_1);
+
+ // row:0,1,2,3 even_col:4,6
+ src_1 = vget_low_s16(vreinterpretq_s16_s32(c1.val[1]));
+ fltr_1 = vget_low_s16(vreinterpretq_s16_s32(d1.val[1]));
+ res_1 = vmlal_s16(res_1, src_1, fltr_1);
+ res_1_im = vpadd_s32(vget_low_s32(res_1), vget_high_s32(res_1));
+
+ // row:0,1,2,3 even_col:0,2,4,6
+ im_res_0 = vcombine_s32(res_0_im, res_1_im);
+
+ // row:4,5 even_col:0,2
+ src_0 = vget_low_s16(vreinterpretq_s16_s32(c2.val[0]));
+ fltr_0 = vget_high_s16(vreinterpretq_s16_s32(d0.val[0]));
+ res_0 = vmull_s16(src_0, fltr_0);
+
+ // row:4,5,6,7 even_col:0,2
+ src_0 = vget_low_s16(vreinterpretq_s16_s32(c3.val[0]));
+ fltr_0 = vget_high_s16(vreinterpretq_s16_s32(d0.val[1]));
+ res_0 = vmlal_s16(res_0, src_0, fltr_0);
+ res_0_im = vpadd_s32(vget_low_s32(res_0), vget_high_s32(res_0));
+
+ // row:4,5 even_col:4,6
+ src_1 = vget_low_s16(vreinterpretq_s16_s32(c2.val[1]));
+ fltr_1 = vget_high_s16(vreinterpretq_s16_s32(d1.val[0]));
+ res_1 = vmull_s16(src_1, fltr_1);
+
+ // row:4,5,6,7 even_col:4,6
+ src_1 = vget_low_s16(vreinterpretq_s16_s32(c3.val[1]));
+ fltr_1 = vget_high_s16(vreinterpretq_s16_s32(d1.val[1]));
+ res_1 = vmlal_s16(res_1, src_1, fltr_1);
+ res_1_im = vpadd_s32(vget_low_s32(res_1), vget_high_s32(res_1));
+
+ // row:4,5,6,7 even_col:0,2,4,6
+ im_res_1 = vcombine_s32(res_0_im, res_1_im);
+
+ // row:0-7 even_col:0,2,4,6
+ res_even = vaddq_s32(im_res_0, im_res_1);
+
+ // row:0,1 odd_col:1,3
+ src_0 = vget_high_s16(vreinterpretq_s16_s32(c0.val[0]));
+ fltr_0 = vget_low_s16(vreinterpretq_s16_s32(d2.val[0]));
+ res_0 = vmull_s16(src_0, fltr_0);
+
+ // row:0,1,2,3 odd_col:1,3
+ src_0 = vget_high_s16(vreinterpretq_s16_s32(c1.val[0]));
+ fltr_0 = vget_low_s16(vreinterpretq_s16_s32(d2.val[1]));
+ res_0 = vmlal_s16(res_0, src_0, fltr_0);
+ res_0_im = vpadd_s32(vget_low_s32(res_0), vget_high_s32(res_0));
+
+ // row:0,1 odd_col:5,7
+ src_1 = vget_high_s16(vreinterpretq_s16_s32(c0.val[1]));
+ fltr_1 = vget_low_s16(vreinterpretq_s16_s32(d3.val[0]));
+ res_1 = vmull_s16(src_1, fltr_1);
+
+ // row:0,1,2,3 odd_col:5,7
+ src_1 = vget_high_s16(vreinterpretq_s16_s32(c1.val[1]));
+ fltr_1 = vget_low_s16(vreinterpretq_s16_s32(d3.val[1]));
+ res_1 = vmlal_s16(res_1, src_1, fltr_1);
+ res_1_im = vpadd_s32(vget_low_s32(res_1), vget_high_s32(res_1));
+
+ // row:0,1,2,3 odd_col:1,3,5,7
+ im_res_0 = vcombine_s32(res_0_im, res_1_im);
+
+ // row:4,5 odd_col:1,3
+ src_0 = vget_high_s16(vreinterpretq_s16_s32(c2.val[0]));
+ fltr_0 = vget_high_s16(vreinterpretq_s16_s32(d2.val[0]));
+ res_0 = vmull_s16(src_0, fltr_0);
+
+ // row:4,5,6,7 odd_col:1,3
+ src_0 = vget_high_s16(vreinterpretq_s16_s32(c3.val[0]));
+ fltr_0 = vget_high_s16(vreinterpretq_s16_s32(d2.val[1]));
+ res_0 = vmlal_s16(res_0, src_0, fltr_0);
+ res_0_im = vpadd_s32(vget_low_s32(res_0), vget_high_s32(res_0));
+
+ // row:4,5 odd_col:5,7
+ src_1 = vget_high_s16(vreinterpretq_s16_s32(c2.val[1]));
+ fltr_1 = vget_high_s16(vreinterpretq_s16_s32(d3.val[0]));
+ res_1 = vmull_s16(src_1, fltr_1);
+
+ // row:4,5,6,7 odd_col:5,7
+ src_1 = vget_high_s16(vreinterpretq_s16_s32(c3.val[1]));
+ fltr_1 = vget_high_s16(vreinterpretq_s16_s32(d3.val[1]));
+ res_1 = vmlal_s16(res_1, src_1, fltr_1);
+ res_1_im = vpadd_s32(vget_low_s32(res_1), vget_high_s32(res_1));
+
+ // row:4,5,6,7 odd_col:1,3,5,7
+ im_res_1 = vcombine_s32(res_0_im, res_1_im);
+
+ // row:0-7 odd_col:1,3,5,7
+ res_odd = vaddq_s32(im_res_0, im_res_1);
+
+ // reordering as 0 1 2 3 | 4 5 6 7
+ c0 = vtrnq_s32(res_even, res_odd);
+
+ // Final store
+ *res_low = vcombine_s32(vget_low_s32(c0.val[0]), vget_low_s32(c0.val[1]));
+ *res_high = vcombine_s32(vget_high_s32(c0.val[0]), vget_high_s32(c0.val[1]));
+}
+
+void av1_warp_affine_neon(const int32_t *mat, const uint8_t *ref, int width,
+ int height, int stride, uint8_t *pred, int p_col,
+ int p_row, int p_width, int p_height, int p_stride,
+ int subsampling_x, int subsampling_y,
+ ConvolveParams *conv_params, int16_t alpha,
+ int16_t beta, int16_t gamma, int16_t delta) {
+ int16x8_t tmp[15];
+ const int bd = 8;
+ const int w0 = conv_params->fwd_offset;
+ const int w1 = conv_params->bck_offset;
+ const int32x4_t fwd = vdupq_n_s32((int32_t)w0);
+ const int32x4_t bwd = vdupq_n_s32((int32_t)w1);
+ const int16x8_t sub_constant = vdupq_n_s16((1 << (bd - 1)) + (1 << bd));
+
+ int limit = 0;
+ uint8x16_t vec_dup, mask_val;
+ int32x4_t res_lo, res_hi;
+ int16x8_t result_final;
+ uint8x16_t src_1, src_2, src_3, src_4;
+ uint8x16_t indx_vec = {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
+ };
+ uint8x16_t cmp_vec;
+
+ const int reduce_bits_horiz = conv_params->round_0;
+ const int reduce_bits_vert = conv_params->is_compound
+ ? conv_params->round_1
+ : 2 * FILTER_BITS - reduce_bits_horiz;
+ const int32x4_t shift_vert = vdupq_n_s32(-(int32_t)reduce_bits_vert);
+ const int offset_bits_horiz = bd + FILTER_BITS - 1;
+
+ assert(IMPLIES(conv_params->is_compound, conv_params->dst != NULL));
+
+ const int offset_bits_vert = bd + 2 * FILTER_BITS - reduce_bits_horiz;
+ int32x4_t add_const_vert = vdupq_n_s32((int32_t)(1 << offset_bits_vert));
+ const int round_bits =
+ 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
+ const int16x4_t round_bits_vec = vdup_n_s16(-(int16_t)round_bits);
+ const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
+ const int16x4_t res_sub_const =
+ vdup_n_s16(-((1 << (offset_bits - conv_params->round_1)) +
+ (1 << (offset_bits - conv_params->round_1 - 1))));
+ int k;
+
+ assert(IMPLIES(conv_params->do_average, conv_params->is_compound));
+
+ for (int i = 0; i < p_height; i += 8) {
+ for (int j = 0; j < p_width; j += 8) {
+ const int32_t src_x = (p_col + j + 4) << subsampling_x;
+ const int32_t src_y = (p_row + i + 4) << subsampling_y;
+ const int32_t dst_x = mat[2] * src_x + mat[3] * src_y + mat[0];
+ const int32_t dst_y = mat[4] * src_x + mat[5] * src_y + mat[1];
+ const int32_t x4 = dst_x >> subsampling_x;
+ const int32_t y4 = dst_y >> subsampling_y;
+
+ int32_t ix4 = x4 >> WARPEDMODEL_PREC_BITS;
+ int32_t sx4 = x4 & ((1 << WARPEDMODEL_PREC_BITS) - 1);
+ int32_t iy4 = y4 >> WARPEDMODEL_PREC_BITS;
+ int32_t sy4 = y4 & ((1 << WARPEDMODEL_PREC_BITS) - 1);
+
+ sx4 += alpha * (-4) + beta * (-4) + (1 << (WARPEDDIFF_PREC_BITS - 1)) +
+ (WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS);
+ sy4 += gamma * (-4) + delta * (-4) + (1 << (WARPEDDIFF_PREC_BITS - 1)) +
+ (WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS);
+
+ sx4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1);
+ sy4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1);
+ // horizontal
+ if (ix4 <= -7) {
+ for (k = -7; k < AOMMIN(8, p_height - i); ++k) {
+ int iy = iy4 + k;
+ if (iy < 0)
+ iy = 0;
+ else if (iy > height - 1)
+ iy = height - 1;
+ int16_t dup_val =
+ (1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) +
+ ref[iy * stride] * (1 << (FILTER_BITS - reduce_bits_horiz));
+
+ tmp[k + 7] = vdupq_n_s16(dup_val);
+ }
+ } else if (ix4 >= width + 6) {
+ for (k = -7; k < AOMMIN(8, p_height - i); ++k) {
+ int iy = iy4 + k;
+ if (iy < 0)
+ iy = 0;
+ else if (iy > height - 1)
+ iy = height - 1;
+ int16_t dup_val = (1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) +
+ ref[iy * stride + (width - 1)] *
+ (1 << (FILTER_BITS - reduce_bits_horiz));
+ tmp[k + 7] = vdupq_n_s16(dup_val);
+ }
+ } else if (((ix4 - 7) < 0) || ((ix4 + 9) > width)) {
+ const int out_of_boundary_left = -(ix4 - 6);
+ const int out_of_boundary_right = (ix4 + 8) - width;
+
+ for (k = -7; k < AOMMIN(8, p_height - i); ++k) {
+ int iy = iy4 + k;
+ if (iy < 0)
+ iy = 0;
+ else if (iy > height - 1)
+ iy = height - 1;
+ int sx = sx4 + beta * (k + 4);
+
+ const uint8_t *src = ref + iy * stride + ix4 - 7;
+ src_1 = vld1q_u8(src);
+
+ if (out_of_boundary_left >= 0) {
+ limit = out_of_boundary_left + 1;
+ cmp_vec = vdupq_n_u8(out_of_boundary_left);
+ vec_dup = vdupq_n_u8(*(src + limit));
+ mask_val = vcleq_u8(indx_vec, cmp_vec);
+ src_1 = vbslq_u8(mask_val, vec_dup, src_1);
+ }
+ if (out_of_boundary_right >= 0) {
+ limit = 15 - (out_of_boundary_right + 1);
+ cmp_vec = vdupq_n_u8(15 - out_of_boundary_right);
+ vec_dup = vdupq_n_u8(*(src + limit));
+ mask_val = vcgeq_u8(indx_vec, cmp_vec);
+ src_1 = vbslq_u8(mask_val, vec_dup, src_1);
+ }
+ src_2 = vextq_u8(src_1, src_1, 1);
+ src_3 = vextq_u8(src_2, src_2, 1);
+ src_4 = vextq_u8(src_3, src_3, 1);
+
+ horizontal_filter_neon(src_1, src_2, src_3, src_4, tmp, sx, alpha, k,
+ offset_bits_horiz, reduce_bits_horiz);
+ }
+ } else {
+ for (k = -7; k < AOMMIN(8, p_height - i); ++k) {
+ int iy = iy4 + k;
+ if (iy < 0)
+ iy = 0;
+ else if (iy > height - 1)
+ iy = height - 1;
+ int sx = sx4 + beta * (k + 4);
+
+ const uint8_t *src = ref + iy * stride + ix4 - 7;
+ src_1 = vld1q_u8(src);
+ src_2 = vextq_u8(src_1, src_1, 1);
+ src_3 = vextq_u8(src_2, src_2, 1);
+ src_4 = vextq_u8(src_3, src_3, 1);
+
+ horizontal_filter_neon(src_1, src_2, src_3, src_4, tmp, sx, alpha, k,
+ offset_bits_horiz, reduce_bits_horiz);
+ }
+ }
+
+ // vertical
+ for (k = -4; k < AOMMIN(4, p_height - i - 4); ++k) {
+ int sy = sy4 + delta * (k + 4);
+
+ const int16x8_t *v_src = tmp + (k + 4);
+
+ vertical_filter_neon(v_src, &res_lo, &res_hi, sy, gamma);
+
+ res_lo = vaddq_s32(res_lo, add_const_vert);
+ res_hi = vaddq_s32(res_hi, add_const_vert);
+
+ if (conv_params->is_compound) {
+ uint16_t *const p =
+ (uint16_t *)&conv_params
+ ->dst[(i + k + 4) * conv_params->dst_stride + j];
+
+ res_lo = vrshlq_s32(res_lo, shift_vert);
+ if (conv_params->do_average) {
+ uint8_t *const dst8 = &pred[(i + k + 4) * p_stride + j];
+ uint16x4_t tmp16_lo = vld1_u16(p);
+ int32x4_t tmp32_lo = vreinterpretq_s32_u32(vmovl_u16(tmp16_lo));
+ int16x4_t tmp16_low;
+ if (conv_params->use_jnt_comp_avg) {
+ res_lo = vmulq_s32(res_lo, bwd);
+ tmp32_lo = vmulq_s32(tmp32_lo, fwd);
+ tmp32_lo = vaddq_s32(tmp32_lo, res_lo);
+ tmp16_low = vshrn_n_s32(tmp32_lo, DIST_PRECISION_BITS);
+ } else {
+ tmp32_lo = vaddq_s32(tmp32_lo, res_lo);
+ tmp16_low = vshrn_n_s32(tmp32_lo, 1);
+ }
+ int16x4_t res_low = vadd_s16(tmp16_low, res_sub_const);
+ res_low = vqrshl_s16(res_low, round_bits_vec);
+ int16x8_t final_res_low = vcombine_s16(res_low, res_low);
+ uint8x8_t res_8_low = vqmovun_s16(final_res_low);
+
+ vst1_lane_u32((uint32_t *)dst8, vreinterpret_u32_u8(res_8_low), 0);
+ } else {
+ uint16x4_t res_u16_low = vqmovun_s32(res_lo);
+ vst1_u16(p, res_u16_low);
+ }
+ if (p_width > 4) {
+ uint16_t *const p4 =
+ (uint16_t *)&conv_params
+ ->dst[(i + k + 4) * conv_params->dst_stride + j + 4];
+
+ res_hi = vrshlq_s32(res_hi, shift_vert);
+ if (conv_params->do_average) {
+ uint8_t *const dst8_4 = &pred[(i + k + 4) * p_stride + j + 4];
+
+ uint16x4_t tmp16_hi = vld1_u16(p4);
+ int32x4_t tmp32_hi = vreinterpretq_s32_u32(vmovl_u16(tmp16_hi));
+ int16x4_t tmp16_high;
+ if (conv_params->use_jnt_comp_avg) {
+ res_hi = vmulq_s32(res_hi, bwd);
+ tmp32_hi = vmulq_s32(tmp32_hi, fwd);
+ tmp32_hi = vaddq_s32(tmp32_hi, res_hi);
+ tmp16_high = vshrn_n_s32(tmp32_hi, DIST_PRECISION_BITS);
+ } else {
+ tmp32_hi = vaddq_s32(tmp32_hi, res_hi);
+ tmp16_high = vshrn_n_s32(tmp32_hi, 1);
+ }
+ int16x4_t res_high = vadd_s16(tmp16_high, res_sub_const);
+ res_high = vqrshl_s16(res_high, round_bits_vec);
+ int16x8_t final_res_high = vcombine_s16(res_high, res_high);
+ uint8x8_t res_8_high = vqmovun_s16(final_res_high);
+
+ vst1_lane_u32((uint32_t *)dst8_4, vreinterpret_u32_u8(res_8_high),
+ 0);
+ } else {
+ uint16x4_t res_u16_high = vqmovun_s32(res_hi);
+ vst1_u16(p4, res_u16_high);
+ }
+ }
+ } else {
+ res_lo = vrshlq_s32(res_lo, shift_vert);
+ res_hi = vrshlq_s32(res_hi, shift_vert);
+
+ result_final = vcombine_s16(vmovn_s32(res_lo), vmovn_s32(res_hi));
+ result_final = vsubq_s16(result_final, sub_constant);
+
+ uint8_t *const p = (uint8_t *)&pred[(i + k + 4) * p_stride + j];
+ uint8x8_t val = vqmovun_s16(result_final);
+
+ if (p_width == 4) {
+ vst1_lane_u32((uint32_t *)p, vreinterpret_u32_u8(val), 0);
+ } else {
+ vst1_u8(p, val);
+ }
+ }
+ }
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-11 22:19:28 +0000