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Diffstat (limited to 'third_party/aom/av1/common/x86/warp_plane_sse4.c')
| -rw-r--r-- | third_party/aom/av1/common/x86/warp_plane_sse4.c | 942 |
1 files changed, 942 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/x86/warp_plane_sse4.c b/third_party/aom/av1/common/x86/warp_plane_sse4.c new file mode 100644 index 0000000000..b810cea2e5 --- /dev/null +++ b/third_party/aom/av1/common/x86/warp_plane_sse4.c @@ -0,0 +1,942 @@ +/* + * Copyright (c) 2017, 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 <emmintrin.h> +#include <smmintrin.h> + +#include "config/av1_rtcd.h" + +#include "av1/common/warped_motion.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[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 */ + +// Shuffle masks: we want to convert a sequence of bytes 0, 1, 2, ..., 15 +// in an SSE register into two sequences: +// 0, 2, 2, 4, ..., 12, 12, 14, <don't care> +// 1, 3, 3, 5, ..., 13, 13, 15, <don't care> +static const uint8_t even_mask[16] = { 0, 2, 2, 4, 4, 6, 6, 8, + 8, 10, 10, 12, 12, 14, 14, 0 }; +static const uint8_t odd_mask[16] = { 1, 3, 3, 5, 5, 7, 7, 9, + 9, 11, 11, 13, 13, 15, 15, 0 }; + +static const uint8_t shuffle_alpha0_mask01[16] = { 0, 1, 0, 1, 0, 1, 0, 1, + 0, 1, 0, 1, 0, 1, 0, 1 }; + +static const uint8_t shuffle_alpha0_mask23[16] = { 2, 3, 2, 3, 2, 3, 2, 3, + 2, 3, 2, 3, 2, 3, 2, 3 }; + +static const uint8_t shuffle_alpha0_mask45[16] = { 4, 5, 4, 5, 4, 5, 4, 5, + 4, 5, 4, 5, 4, 5, 4, 5 }; + +static const uint8_t shuffle_alpha0_mask67[16] = { 6, 7, 6, 7, 6, 7, 6, 7, + 6, 7, 6, 7, 6, 7, 6, 7 }; + +static const uint8_t shuffle_gamma0_mask0[16] = { 0, 1, 2, 3, 0, 1, 2, 3, + 0, 1, 2, 3, 0, 1, 2, 3 }; +static const uint8_t shuffle_gamma0_mask1[16] = { 4, 5, 6, 7, 4, 5, 6, 7, + 4, 5, 6, 7, 4, 5, 6, 7 }; +static const uint8_t shuffle_gamma0_mask2[16] = { 8, 9, 10, 11, 8, 9, 10, 11, + 8, 9, 10, 11, 8, 9, 10, 11 }; +static const uint8_t shuffle_gamma0_mask3[16] = { + 12, 13, 14, 15, 12, 13, 14, 15, 12, 13, 14, 15, 12, 13, 14, 15 +}; + +static INLINE void filter_src_pixels(__m128i src, __m128i *tmp, __m128i *coeff, + const int offset_bits_horiz, + const int reduce_bits_horiz, int k) { + const __m128i src_even = + _mm_shuffle_epi8(src, _mm_loadu_si128((__m128i *)even_mask)); + const __m128i src_odd = + _mm_shuffle_epi8(src, _mm_loadu_si128((__m128i *)odd_mask)); + // The pixel order we need for 'src' is: + // 0 2 2 4 4 6 6 8 1 3 3 5 5 7 7 9 + const __m128i src_02 = _mm_unpacklo_epi64(src_even, src_odd); + const __m128i res_02 = _mm_maddubs_epi16(src_02, coeff[0]); + // 4 6 6 8 8 10 10 12 5 7 7 9 9 11 11 13 + const __m128i src_46 = _mm_unpacklo_epi64(_mm_srli_si128(src_even, 4), + _mm_srli_si128(src_odd, 4)); + const __m128i res_46 = _mm_maddubs_epi16(src_46, coeff[1]); + // 1 3 3 5 5 7 7 9 2 4 4 6 6 8 8 10 + const __m128i src_13 = + _mm_unpacklo_epi64(src_odd, _mm_srli_si128(src_even, 2)); + const __m128i res_13 = _mm_maddubs_epi16(src_13, coeff[2]); + // 5 7 7 9 9 11 11 13 6 8 8 10 10 12 12 14 + const __m128i src_57 = _mm_unpacklo_epi64(_mm_srli_si128(src_odd, 4), + _mm_srli_si128(src_even, 6)); + const __m128i res_57 = _mm_maddubs_epi16(src_57, coeff[3]); + + const __m128i round_const = _mm_set1_epi16((1 << offset_bits_horiz) + + ((1 << reduce_bits_horiz) >> 1)); + + // Note: The values res_02 + res_46 and res_13 + res_57 both + // fit into int16s at this point, but their sum may be too wide to fit + // into an int16. However, once we also add round_const, the sum of + // all of these fits into a uint16. + // + // The wrapping behaviour of _mm_add_* is used here to make sure we + // get the correct result despite converting between different + // (implicit) types. + const __m128i res_even = _mm_add_epi16(res_02, res_46); + const __m128i res_odd = _mm_add_epi16(res_13, res_57); + const __m128i res = + _mm_add_epi16(_mm_add_epi16(res_even, res_odd), round_const); + tmp[k + 7] = _mm_srl_epi16(res, _mm_cvtsi32_si128(reduce_bits_horiz)); +} + +static INLINE void prepare_horizontal_filter_coeff(int alpha, int sx, + __m128i *coeff) { + // Filter even-index pixels + const __m128i tmp_0 = _mm_loadl_epi64( + (__m128i *)&filter_8bit[(sx + 0 * alpha) >> WARPEDDIFF_PREC_BITS]); + const __m128i tmp_1 = _mm_loadl_epi64( + (__m128i *)&filter_8bit[(sx + 1 * alpha) >> WARPEDDIFF_PREC_BITS]); + const __m128i tmp_2 = _mm_loadl_epi64( + (__m128i *)&filter_8bit[(sx + 2 * alpha) >> WARPEDDIFF_PREC_BITS]); + const __m128i tmp_3 = _mm_loadl_epi64( + (__m128i *)&filter_8bit[(sx + 3 * alpha) >> WARPEDDIFF_PREC_BITS]); + const __m128i tmp_4 = _mm_loadl_epi64( + (__m128i *)&filter_8bit[(sx + 4 * alpha) >> WARPEDDIFF_PREC_BITS]); + const __m128i tmp_5 = _mm_loadl_epi64( + (__m128i *)&filter_8bit[(sx + 5 * alpha) >> WARPEDDIFF_PREC_BITS]); + const __m128i tmp_6 = _mm_loadl_epi64( + (__m128i *)&filter_8bit[(sx + 6 * alpha) >> WARPEDDIFF_PREC_BITS]); + const __m128i tmp_7 = _mm_loadl_epi64( + (__m128i *)&filter_8bit[(sx + 7 * alpha) >> WARPEDDIFF_PREC_BITS]); + + // Coeffs 0 2 0 2 4 6 4 6 1 3 1 3 5 7 5 7 for pixels 0 2 + const __m128i tmp_8 = _mm_unpacklo_epi16(tmp_0, tmp_2); + // Coeffs 0 2 0 2 4 6 4 6 1 3 1 3 5 7 5 7 for pixels 1 3 + const __m128i tmp_9 = _mm_unpacklo_epi16(tmp_1, tmp_3); + // Coeffs 0 2 0 2 4 6 4 6 1 3 1 3 5 7 5 7 for pixels 4 6 + const __m128i tmp_10 = _mm_unpacklo_epi16(tmp_4, tmp_6); + // Coeffs 0 2 0 2 4 6 4 6 1 3 1 3 5 7 5 7 for pixels 5 7 + const __m128i tmp_11 = _mm_unpacklo_epi16(tmp_5, tmp_7); + + // Coeffs 0 2 0 2 0 2 0 2 4 6 4 6 4 6 4 6 for pixels 0 2 4 6 + const __m128i tmp_12 = _mm_unpacklo_epi32(tmp_8, tmp_10); + // Coeffs 1 3 1 3 1 3 1 3 5 7 5 7 5 7 5 7 for pixels 0 2 4 6 + const __m128i tmp_13 = _mm_unpackhi_epi32(tmp_8, tmp_10); + // Coeffs 0 2 0 2 0 2 0 2 4 6 4 6 4 6 4 6 for pixels 1 3 5 7 + const __m128i tmp_14 = _mm_unpacklo_epi32(tmp_9, tmp_11); + // Coeffs 1 3 1 3 1 3 1 3 5 7 5 7 5 7 5 7 for pixels 1 3 5 7 + const __m128i tmp_15 = _mm_unpackhi_epi32(tmp_9, tmp_11); + + // Coeffs 0 2 for pixels 0 2 4 6 1 3 5 7 + coeff[0] = _mm_unpacklo_epi64(tmp_12, tmp_14); + // Coeffs 4 6 for pixels 0 2 4 6 1 3 5 7 + coeff[1] = _mm_unpackhi_epi64(tmp_12, tmp_14); + // Coeffs 1 3 for pixels 0 2 4 6 1 3 5 7 + coeff[2] = _mm_unpacklo_epi64(tmp_13, tmp_15); + // Coeffs 5 7 for pixels 0 2 4 6 1 3 5 7 + coeff[3] = _mm_unpackhi_epi64(tmp_13, tmp_15); +} + +static INLINE void prepare_horizontal_filter_coeff_alpha0(int sx, + __m128i *coeff) { + // Filter even-index pixels + const __m128i tmp_0 = + _mm_loadl_epi64((__m128i *)&filter_8bit[sx >> WARPEDDIFF_PREC_BITS]); + + // Coeffs 0 2 for pixels 0 2 4 6 1 3 5 7 + coeff[0] = _mm_shuffle_epi8( + tmp_0, _mm_loadu_si128((__m128i *)shuffle_alpha0_mask01)); + // Coeffs 4 6 for pixels 0 2 4 6 1 3 5 7 + coeff[1] = _mm_shuffle_epi8( + tmp_0, _mm_loadu_si128((__m128i *)shuffle_alpha0_mask23)); + // Coeffs 1 3 for pixels 0 2 4 6 1 3 5 7 + coeff[2] = _mm_shuffle_epi8( + tmp_0, _mm_loadu_si128((__m128i *)shuffle_alpha0_mask45)); + // Coeffs 5 7 for pixels 0 2 4 6 1 3 5 7 + coeff[3] = _mm_shuffle_epi8( + tmp_0, _mm_loadu_si128((__m128i *)shuffle_alpha0_mask67)); +} + +static INLINE void horizontal_filter(__m128i src, __m128i *tmp, int sx, + int alpha, int k, + const int offset_bits_horiz, + const int reduce_bits_horiz) { + __m128i coeff[4]; + prepare_horizontal_filter_coeff(alpha, sx, coeff); + filter_src_pixels(src, tmp, coeff, offset_bits_horiz, reduce_bits_horiz, k); +} + +static INLINE void warp_horizontal_filter(const uint8_t *ref, __m128i *tmp, + int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, + int p_height, int height, int i, + const int offset_bits_horiz, + const int reduce_bits_horiz) { + int k; + 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); + + // Load source pixels + const __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + horizontal_filter(src, tmp, sx, alpha, k, offset_bits_horiz, + reduce_bits_horiz); + } +} + +static INLINE void warp_horizontal_filter_alpha0( + const uint8_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, int p_height, int height, int i, + const int offset_bits_horiz, const int reduce_bits_horiz) { + (void)alpha; + int k; + 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); + + // Load source pixels + const __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + + __m128i coeff[4]; + prepare_horizontal_filter_coeff_alpha0(sx, coeff); + filter_src_pixels(src, tmp, coeff, offset_bits_horiz, reduce_bits_horiz, k); + } +} + +static INLINE void warp_horizontal_filter_beta0( + const uint8_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, int p_height, int height, int i, + const int offset_bits_horiz, const int reduce_bits_horiz) { + (void)beta; + int k; + __m128i coeff[4]; + prepare_horizontal_filter_coeff(alpha, sx4, coeff); + + 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; + + // Load source pixels + const __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + filter_src_pixels(src, tmp, coeff, offset_bits_horiz, reduce_bits_horiz, k); + } +} + +static INLINE void warp_horizontal_filter_alpha0_beta0( + const uint8_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, int p_height, int height, int i, + const int offset_bits_horiz, const int reduce_bits_horiz) { + (void)beta; + (void)alpha; + int k; + + __m128i coeff[4]; + prepare_horizontal_filter_coeff_alpha0(sx4, coeff); + + 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; + + // Load source pixels + const __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + filter_src_pixels(src, tmp, coeff, offset_bits_horiz, reduce_bits_horiz, k); + } +} + +static INLINE void unpack_weights_and_set_round_const( + ConvolveParams *conv_params, const int round_bits, const int offset_bits, + __m128i *res_sub_const, __m128i *round_bits_const, __m128i *wt) { + *res_sub_const = + _mm_set1_epi16(-(1 << (offset_bits - conv_params->round_1)) - + (1 << (offset_bits - conv_params->round_1 - 1))); + *round_bits_const = _mm_set1_epi16(((1 << round_bits) >> 1)); + + const int w0 = conv_params->fwd_offset; + const int w1 = conv_params->bck_offset; + const __m128i wt0 = _mm_set1_epi16(w0); + const __m128i wt1 = _mm_set1_epi16(w1); + *wt = _mm_unpacklo_epi16(wt0, wt1); +} + +static INLINE void prepare_vertical_filter_coeffs(int gamma, int sy, + __m128i *coeffs) { + const __m128i tmp_0 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sy + 0 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_2 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sy + 2 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_4 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sy + 4 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_6 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sy + 6 * gamma) >> WARPEDDIFF_PREC_BITS))); + + const __m128i tmp_8 = _mm_unpacklo_epi32(tmp_0, tmp_2); + const __m128i tmp_10 = _mm_unpacklo_epi32(tmp_4, tmp_6); + const __m128i tmp_12 = _mm_unpackhi_epi32(tmp_0, tmp_2); + const __m128i tmp_14 = _mm_unpackhi_epi32(tmp_4, tmp_6); + + // even coeffs + coeffs[0] = _mm_unpacklo_epi64(tmp_8, tmp_10); + coeffs[1] = _mm_unpackhi_epi64(tmp_8, tmp_10); + coeffs[2] = _mm_unpacklo_epi64(tmp_12, tmp_14); + coeffs[3] = _mm_unpackhi_epi64(tmp_12, tmp_14); + + const __m128i tmp_1 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sy + 1 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_3 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sy + 3 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_5 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sy + 5 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_7 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sy + 7 * gamma) >> WARPEDDIFF_PREC_BITS))); + + const __m128i tmp_9 = _mm_unpacklo_epi32(tmp_1, tmp_3); + const __m128i tmp_11 = _mm_unpacklo_epi32(tmp_5, tmp_7); + const __m128i tmp_13 = _mm_unpackhi_epi32(tmp_1, tmp_3); + const __m128i tmp_15 = _mm_unpackhi_epi32(tmp_5, tmp_7); + + // odd coeffs + coeffs[4] = _mm_unpacklo_epi64(tmp_9, tmp_11); + coeffs[5] = _mm_unpackhi_epi64(tmp_9, tmp_11); + coeffs[6] = _mm_unpacklo_epi64(tmp_13, tmp_15); + coeffs[7] = _mm_unpackhi_epi64(tmp_13, tmp_15); +} + +static INLINE void prepare_vertical_filter_coeffs_gamma0(int sy, + __m128i *coeffs) { + const __m128i tmp_0 = _mm_loadu_si128( + (__m128i *)(warped_filter + (sy >> WARPEDDIFF_PREC_BITS))); + + // even coeffs + coeffs[0] = + _mm_shuffle_epi8(tmp_0, _mm_loadu_si128((__m128i *)shuffle_gamma0_mask0)); + coeffs[1] = + _mm_shuffle_epi8(tmp_0, _mm_loadu_si128((__m128i *)shuffle_gamma0_mask1)); + coeffs[2] = + _mm_shuffle_epi8(tmp_0, _mm_loadu_si128((__m128i *)shuffle_gamma0_mask2)); + coeffs[3] = + _mm_shuffle_epi8(tmp_0, _mm_loadu_si128((__m128i *)shuffle_gamma0_mask3)); + + // odd coeffs + coeffs[4] = coeffs[0]; + coeffs[5] = coeffs[1]; + coeffs[6] = coeffs[2]; + coeffs[7] = coeffs[3]; +} + +static INLINE void filter_src_pixels_vertical(__m128i *tmp, __m128i *coeffs, + __m128i *res_lo, __m128i *res_hi, + int k) { + // Load from tmp and rearrange pairs of consecutive rows into the + // column order 0 0 2 2 4 4 6 6; 1 1 3 3 5 5 7 7 + const __m128i *src = tmp + (k + 4); + const __m128i src_0 = _mm_unpacklo_epi16(src[0], src[1]); + const __m128i src_2 = _mm_unpacklo_epi16(src[2], src[3]); + const __m128i src_4 = _mm_unpacklo_epi16(src[4], src[5]); + const __m128i src_6 = _mm_unpacklo_epi16(src[6], src[7]); + + const __m128i res_0 = _mm_madd_epi16(src_0, coeffs[0]); + const __m128i res_2 = _mm_madd_epi16(src_2, coeffs[1]); + const __m128i res_4 = _mm_madd_epi16(src_4, coeffs[2]); + const __m128i res_6 = _mm_madd_epi16(src_6, coeffs[3]); + + const __m128i res_even = + _mm_add_epi32(_mm_add_epi32(res_0, res_2), _mm_add_epi32(res_4, res_6)); + + // Filter odd-index pixels + const __m128i src_1 = _mm_unpackhi_epi16(src[0], src[1]); + const __m128i src_3 = _mm_unpackhi_epi16(src[2], src[3]); + const __m128i src_5 = _mm_unpackhi_epi16(src[4], src[5]); + const __m128i src_7 = _mm_unpackhi_epi16(src[6], src[7]); + + const __m128i res_1 = _mm_madd_epi16(src_1, coeffs[4]); + const __m128i res_3 = _mm_madd_epi16(src_3, coeffs[5]); + const __m128i res_5 = _mm_madd_epi16(src_5, coeffs[6]); + const __m128i res_7 = _mm_madd_epi16(src_7, coeffs[7]); + + const __m128i res_odd = + _mm_add_epi32(_mm_add_epi32(res_1, res_3), _mm_add_epi32(res_5, res_7)); + + // Rearrange pixels back into the order 0 ... 7 + *res_lo = _mm_unpacklo_epi32(res_even, res_odd); + *res_hi = _mm_unpackhi_epi32(res_even, res_odd); +} + +static INLINE void store_vertical_filter_output( + __m128i *res_lo, __m128i *res_hi, const __m128i *res_add_const, + const __m128i *wt, const __m128i *res_sub_const, __m128i *round_bits_const, + uint8_t *pred, ConvolveParams *conv_params, int i, int j, int k, + const int reduce_bits_vert, int p_stride, int p_width, + const int round_bits) { + __m128i res_lo_1 = *res_lo; + __m128i res_hi_1 = *res_hi; + + if (conv_params->is_compound) { + __m128i *const p = + (__m128i *)&conv_params->dst[(i + k + 4) * conv_params->dst_stride + j]; + res_lo_1 = _mm_srai_epi32(_mm_add_epi32(res_lo_1, *res_add_const), + reduce_bits_vert); + const __m128i temp_lo_16 = _mm_packus_epi32(res_lo_1, res_lo_1); + __m128i res_lo_16; + if (conv_params->do_average) { + __m128i *const dst8 = (__m128i *)&pred[(i + k + 4) * p_stride + j]; + const __m128i p_16 = _mm_loadl_epi64(p); + + if (conv_params->use_jnt_comp_avg) { + const __m128i p_16_lo = _mm_unpacklo_epi16(p_16, temp_lo_16); + const __m128i wt_res_lo = _mm_madd_epi16(p_16_lo, *wt); + const __m128i shifted_32 = + _mm_srai_epi32(wt_res_lo, DIST_PRECISION_BITS); + res_lo_16 = _mm_packus_epi32(shifted_32, shifted_32); + } else { + res_lo_16 = _mm_srai_epi16(_mm_add_epi16(p_16, temp_lo_16), 1); + } + + res_lo_16 = _mm_add_epi16(res_lo_16, *res_sub_const); + + res_lo_16 = _mm_srai_epi16(_mm_add_epi16(res_lo_16, *round_bits_const), + round_bits); + __m128i res_8_lo = _mm_packus_epi16(res_lo_16, res_lo_16); + *(uint32_t *)dst8 = _mm_cvtsi128_si32(res_8_lo); + } else { + _mm_storel_epi64(p, temp_lo_16); + } + if (p_width > 4) { + __m128i *const p4 = + (__m128i *)&conv_params + ->dst[(i + k + 4) * conv_params->dst_stride + j + 4]; + res_hi_1 = _mm_srai_epi32(_mm_add_epi32(res_hi_1, *res_add_const), + reduce_bits_vert); + const __m128i temp_hi_16 = _mm_packus_epi32(res_hi_1, res_hi_1); + __m128i res_hi_16; + + if (conv_params->do_average) { + __m128i *const dst8_4 = + (__m128i *)&pred[(i + k + 4) * p_stride + j + 4]; + const __m128i p4_16 = _mm_loadl_epi64(p4); + + if (conv_params->use_jnt_comp_avg) { + const __m128i p_16_hi = _mm_unpacklo_epi16(p4_16, temp_hi_16); + const __m128i wt_res_hi = _mm_madd_epi16(p_16_hi, *wt); + const __m128i shifted_32 = + _mm_srai_epi32(wt_res_hi, DIST_PRECISION_BITS); + res_hi_16 = _mm_packus_epi32(shifted_32, shifted_32); + } else { + res_hi_16 = _mm_srai_epi16(_mm_add_epi16(p4_16, temp_hi_16), 1); + } + res_hi_16 = _mm_add_epi16(res_hi_16, *res_sub_const); + + res_hi_16 = _mm_srai_epi16(_mm_add_epi16(res_hi_16, *round_bits_const), + round_bits); + __m128i res_8_hi = _mm_packus_epi16(res_hi_16, res_hi_16); + *(uint32_t *)dst8_4 = _mm_cvtsi128_si32(res_8_hi); + + } else { + _mm_storel_epi64(p4, temp_hi_16); + } + } + } else { + const __m128i res_lo_round = _mm_srai_epi32( + _mm_add_epi32(res_lo_1, *res_add_const), reduce_bits_vert); + const __m128i res_hi_round = _mm_srai_epi32( + _mm_add_epi32(res_hi_1, *res_add_const), reduce_bits_vert); + + const __m128i res_16bit = _mm_packs_epi32(res_lo_round, res_hi_round); + __m128i res_8bit = _mm_packus_epi16(res_16bit, res_16bit); + + // Store, blending with 'pred' if needed + __m128i *const p = (__m128i *)&pred[(i + k + 4) * p_stride + j]; + + // Note: If we're outputting a 4x4 block, we need to be very careful + // to only output 4 pixels at this point, to avoid encode/decode + // mismatches when encoding with multiple threads. + if (p_width == 4) { + *(uint32_t *)p = _mm_cvtsi128_si32(res_8bit); + } else { + _mm_storel_epi64(p, res_8bit); + } + } +} + +static INLINE void warp_vertical_filter( + uint8_t *pred, __m128i *tmp, ConvolveParams *conv_params, int16_t gamma, + int16_t delta, int p_height, int p_stride, int p_width, int i, int j, + int sy4, const int reduce_bits_vert, const __m128i *res_add_const, + const int round_bits, const int offset_bits) { + int k; + __m128i res_sub_const, round_bits_const, wt; + unpack_weights_and_set_round_const(conv_params, round_bits, offset_bits, + &res_sub_const, &round_bits_const, &wt); + // Vertical filter + for (k = -4; k < AOMMIN(4, p_height - i - 4); ++k) { + int sy = sy4 + delta * (k + 4); + + __m128i coeffs[8]; + prepare_vertical_filter_coeffs(gamma, sy, coeffs); + + __m128i res_lo; + __m128i res_hi; + filter_src_pixels_vertical(tmp, coeffs, &res_lo, &res_hi, k); + + store_vertical_filter_output(&res_lo, &res_hi, res_add_const, &wt, + &res_sub_const, &round_bits_const, pred, + conv_params, i, j, k, reduce_bits_vert, + p_stride, p_width, round_bits); + } +} + +static INLINE void warp_vertical_filter_gamma0( + uint8_t *pred, __m128i *tmp, ConvolveParams *conv_params, int16_t gamma, + int16_t delta, int p_height, int p_stride, int p_width, int i, int j, + int sy4, const int reduce_bits_vert, const __m128i *res_add_const, + const int round_bits, const int offset_bits) { + int k; + (void)gamma; + __m128i res_sub_const, round_bits_const, wt; + unpack_weights_and_set_round_const(conv_params, round_bits, offset_bits, + &res_sub_const, &round_bits_const, &wt); + // Vertical filter + for (k = -4; k < AOMMIN(4, p_height - i - 4); ++k) { + int sy = sy4 + delta * (k + 4); + + __m128i coeffs[8]; + prepare_vertical_filter_coeffs_gamma0(sy, coeffs); + + __m128i res_lo; + __m128i res_hi; + filter_src_pixels_vertical(tmp, coeffs, &res_lo, &res_hi, k); + + store_vertical_filter_output(&res_lo, &res_hi, res_add_const, &wt, + &res_sub_const, &round_bits_const, pred, + conv_params, i, j, k, reduce_bits_vert, + p_stride, p_width, round_bits); + } +} + +static INLINE void warp_vertical_filter_delta0( + uint8_t *pred, __m128i *tmp, ConvolveParams *conv_params, int16_t gamma, + int16_t delta, int p_height, int p_stride, int p_width, int i, int j, + int sy4, const int reduce_bits_vert, const __m128i *res_add_const, + const int round_bits, const int offset_bits) { + (void)delta; + int k; + __m128i res_sub_const, round_bits_const, wt; + unpack_weights_and_set_round_const(conv_params, round_bits, offset_bits, + &res_sub_const, &round_bits_const, &wt); + + __m128i coeffs[8]; + prepare_vertical_filter_coeffs(gamma, sy4, coeffs); + // Vertical filter + for (k = -4; k < AOMMIN(4, p_height - i - 4); ++k) { + __m128i res_lo; + __m128i res_hi; + filter_src_pixels_vertical(tmp, coeffs, &res_lo, &res_hi, k); + + store_vertical_filter_output(&res_lo, &res_hi, res_add_const, &wt, + &res_sub_const, &round_bits_const, pred, + conv_params, i, j, k, reduce_bits_vert, + p_stride, p_width, round_bits); + } +} + +static INLINE void warp_vertical_filter_gamma0_delta0( + uint8_t *pred, __m128i *tmp, ConvolveParams *conv_params, int16_t gamma, + int16_t delta, int p_height, int p_stride, int p_width, int i, int j, + int sy4, const int reduce_bits_vert, const __m128i *res_add_const, + const int round_bits, const int offset_bits) { + (void)delta; + (void)gamma; + int k; + __m128i res_sub_const, round_bits_const, wt; + unpack_weights_and_set_round_const(conv_params, round_bits, offset_bits, + &res_sub_const, &round_bits_const, &wt); + + __m128i coeffs[8]; + prepare_vertical_filter_coeffs_gamma0(sy4, coeffs); + // Vertical filter + for (k = -4; k < AOMMIN(4, p_height - i - 4); ++k) { + __m128i res_lo; + __m128i res_hi; + filter_src_pixels_vertical(tmp, coeffs, &res_lo, &res_hi, k); + + store_vertical_filter_output(&res_lo, &res_hi, res_add_const, &wt, + &res_sub_const, &round_bits_const, pred, + conv_params, i, j, k, reduce_bits_vert, + p_stride, p_width, round_bits); + } +} + +static INLINE void prepare_warp_vertical_filter( + uint8_t *pred, __m128i *tmp, ConvolveParams *conv_params, int16_t gamma, + int16_t delta, int p_height, int p_stride, int p_width, int i, int j, + int sy4, const int reduce_bits_vert, const __m128i *res_add_const, + const int round_bits, const int offset_bits) { + if (gamma == 0 && delta == 0) + warp_vertical_filter_gamma0_delta0( + pred, tmp, conv_params, gamma, delta, p_height, p_stride, p_width, i, j, + sy4, reduce_bits_vert, res_add_const, round_bits, offset_bits); + else if (gamma == 0 && delta != 0) + warp_vertical_filter_gamma0(pred, tmp, conv_params, gamma, delta, p_height, + p_stride, p_width, i, j, sy4, reduce_bits_vert, + res_add_const, round_bits, offset_bits); + else if (gamma != 0 && delta == 0) + warp_vertical_filter_delta0(pred, tmp, conv_params, gamma, delta, p_height, + p_stride, p_width, i, j, sy4, reduce_bits_vert, + res_add_const, round_bits, offset_bits); + else + warp_vertical_filter(pred, tmp, conv_params, gamma, delta, p_height, + p_stride, p_width, i, j, sy4, reduce_bits_vert, + res_add_const, round_bits, offset_bits); +} + +static INLINE void prepare_warp_horizontal_filter( + const uint8_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, int p_height, int height, int i, + const int offset_bits_horiz, const int reduce_bits_horiz) { + if (alpha == 0 && beta == 0) + warp_horizontal_filter_alpha0_beta0(ref, tmp, stride, ix4, iy4, sx4, alpha, + beta, p_height, height, i, + offset_bits_horiz, reduce_bits_horiz); + else if (alpha == 0 && beta != 0) + warp_horizontal_filter_alpha0(ref, tmp, stride, ix4, iy4, sx4, alpha, beta, + p_height, height, i, offset_bits_horiz, + reduce_bits_horiz); + else if (alpha != 0 && beta == 0) + warp_horizontal_filter_beta0(ref, tmp, stride, ix4, iy4, sx4, alpha, beta, + p_height, height, i, offset_bits_horiz, + reduce_bits_horiz); + else + warp_horizontal_filter(ref, tmp, stride, ix4, iy4, sx4, alpha, beta, + p_height, height, i, offset_bits_horiz, + reduce_bits_horiz); +} + +void av1_warp_affine_sse4_1(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) { + __m128i tmp[15]; + int i, j, k; + const int bd = 8; + 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 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; + const __m128i reduce_bits_vert_const = + _mm_set1_epi32(((1 << reduce_bits_vert) >> 1)); + const __m128i res_add_const = _mm_set1_epi32(1 << offset_bits_vert); + const int round_bits = + 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; + const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; + assert(IMPLIES(conv_params->do_average, conv_params->is_compound)); + + /* Note: For this code to work, the left/right frame borders need to be + extended by at least 13 pixels each. By the time we get here, other + code will have set up this border, but we allow an explicit check + for debugging purposes. + */ + /*for (i = 0; i < height; ++i) { + for (j = 0; j < 13; ++j) { + assert(ref[i * stride - 13 + j] == ref[i * stride]); + assert(ref[i * stride + width + j] == ref[i * stride + (width - 1)]); + } + }*/ + __m128i res_add_const_1; + if (conv_params->is_compound == 1) { + res_add_const_1 = _mm_add_epi32(reduce_bits_vert_const, res_add_const); + } else { + res_add_const_1 = _mm_set1_epi32(-(1 << (bd + reduce_bits_vert - 1)) + + ((1 << reduce_bits_vert) >> 1)); + } + + for (i = 0; i < p_height; i += 8) { + for (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); + + // Add in all the constant terms, including rounding and offset + 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 filter + // If the block is aligned such that, after clamping, every sample + // would be taken from the leftmost/rightmost column, then we can + // skip the expensive horizontal filter. + 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; + tmp[k + 7] = _mm_set1_epi16( + (1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) + + ref[iy * stride] * (1 << (FILTER_BITS - reduce_bits_horiz))); + } + } 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; + tmp[k + 7] = + _mm_set1_epi16((1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) + + ref[iy * stride + (width - 1)] * + (1 << (FILTER_BITS - reduce_bits_horiz))); + } + } 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); + + // Load source pixels + __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + if (out_of_boundary_left >= 0) { + const __m128i shuffle_reg_left = + _mm_loadu_si128((__m128i *)warp_pad_left[out_of_boundary_left]); + src = _mm_shuffle_epi8(src, shuffle_reg_left); + } + if (out_of_boundary_right >= 0) { + const __m128i shuffle_reg_right = _mm_loadu_si128( + (__m128i *)warp_pad_right[out_of_boundary_right]); + src = _mm_shuffle_epi8(src, shuffle_reg_right); + } + horizontal_filter(src, tmp, sx, alpha, k, offset_bits_horiz, + reduce_bits_horiz); + } + } else { + prepare_warp_horizontal_filter(ref, tmp, stride, ix4, iy4, sx4, alpha, + beta, p_height, height, i, + offset_bits_horiz, reduce_bits_horiz); + } + + // Vertical filter + prepare_warp_vertical_filter( + pred, tmp, conv_params, gamma, delta, p_height, p_stride, p_width, i, + j, sy4, reduce_bits_vert, &res_add_const_1, round_bits, offset_bits); + } + } +} |