diff options
Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/av1/common/av1_loopfilter.c | 2377 |
1 files changed, 2377 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/av1_loopfilter.c b/third_party/aom/av1/common/av1_loopfilter.c new file mode 100644 index 0000000000..537d8dfe92 --- /dev/null +++ b/third_party/aom/av1/common/av1_loopfilter.c @@ -0,0 +1,2377 @@ +/* + * Copyright (c) 2016, 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 <math.h> + +#include "config/aom_config.h" +#include "config/aom_dsp_rtcd.h" + +#include "aom_dsp/aom_dsp_common.h" +#include "aom_mem/aom_mem.h" +#include "aom_ports/mem.h" +#include "av1/common/av1_loopfilter.h" +#include "av1/common/onyxc_int.h" +#include "av1/common/reconinter.h" +#include "av1/common/seg_common.h" + +static const SEG_LVL_FEATURES seg_lvl_lf_lut[MAX_MB_PLANE][2] = { + { SEG_LVL_ALT_LF_Y_V, SEG_LVL_ALT_LF_Y_H }, + { SEG_LVL_ALT_LF_U, SEG_LVL_ALT_LF_U }, + { SEG_LVL_ALT_LF_V, SEG_LVL_ALT_LF_V } +}; + +static const int delta_lf_id_lut[MAX_MB_PLANE][2] = { + { 0, 1 }, { 2, 2 }, { 3, 3 } +}; + +typedef enum EDGE_DIR { VERT_EDGE = 0, HORZ_EDGE = 1, NUM_EDGE_DIRS } EDGE_DIR; + +static const int mode_lf_lut[] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // INTRA_MODES + 1, 1, 0, 1, // INTER_MODES (GLOBALMV == 0) + 1, 1, 1, 1, 1, 1, 0, 1 // INTER_COMPOUND_MODES (GLOBAL_GLOBALMV == 0) +}; + +#if LOOP_FILTER_BITMASK +// 256 bit masks (64x64 / 4x4) for left transform size for Y plane. +// We use 4 uint64_t to represent the 256 bit. +// Each 1 represents a position where we should apply a loop filter +// across the left border of an 4x4 block boundary. +// +// In the case of TX_8x8-> ( in low order byte first we end up with +// a mask that looks like this (-- and | are used for better view) +// +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// ----------------- +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// 10101010|10101010 +// +// A loopfilter should be applied to every other 4x4 horizontally. + +// 256 bit masks (64x64 / 4x4) for above transform size for Y plane. +// We use 4 uint64_t to represent the 256 bit. +// Each 1 represents a position where we should apply a loop filter +// across the top border of an 4x4 block boundary. +// +// In the case of TX_8x8-> ( in low order byte first we end up with +// a mask that looks like this +// +// 11111111|11111111 +// 00000000|00000000 +// 11111111|11111111 +// 00000000|00000000 +// 11111111|11111111 +// 00000000|00000000 +// 11111111|11111111 +// 00000000|00000000 +// ----------------- +// 11111111|11111111 +// 00000000|00000000 +// 11111111|11111111 +// 00000000|00000000 +// 11111111|11111111 +// 00000000|00000000 +// 11111111|11111111 +// 00000000|00000000 +// +// A loopfilter should be applied to every other 4x4 horizontally. + +const int mask_id_table_tx_4x4[BLOCK_SIZES_ALL] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, -1, -1, -1, 13, 14, 15, 16, 17, 18 +}; + +const int mask_id_table_tx_8x8[BLOCK_SIZES_ALL] = { + -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, 10, 11, 12, 13 +}; + +const int mask_id_table_tx_16x16[BLOCK_SIZES_ALL] = { + -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, -1, -1, -1, -1, -1, -1, -1, 7, 8 +}; + +const int mask_id_table_tx_32x32[BLOCK_SIZES_ALL] = { -1, -1, -1, -1, -1, -1, + -1, -1, -1, 0, 1, 2, + 3, -1, -1, -1, -1, -1, + -1, -1, -1, -1 }; + +const FilterMask left_mask_univariant_reordered[67] = { + // TX_4X4 + { { 0x0000000000000001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X4, TX_4X4 + { { 0x0000000000010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X8, TX_4X4 + { { 0x0000000000000003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X4, TX_4X4 + { { 0x0000000000030003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X8, TX_4X4 + { { 0x0003000300030003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X16, TX_4X4 + { { 0x00000000000f000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X8, TX_4X4 + { { 0x000f000f000f000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X16, TX_4X4 + { { 0x000f000f000f000fULL, 0x000f000f000f000fULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X32, TX_4X4 + { { 0x00ff00ff00ff00ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X16, TX_4X4 + { { 0x00ff00ff00ff00ffULL, 0x00ff00ff00ff00ffULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X32, TX_4X4 + { { 0x00ff00ff00ff00ffULL, 0x00ff00ff00ff00ffULL, 0x00ff00ff00ff00ffULL, + 0x00ff00ff00ff00ffULL } }, // block size 32X64, TX_4X4 + { { 0xffffffffffffffffULL, 0xffffffffffffffffULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_4X4 + { { 0xffffffffffffffffULL, 0xffffffffffffffffULL, 0xffffffffffffffffULL, + 0xffffffffffffffffULL } }, // block size 64X64, TX_4X4 + { { 0x0001000100010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X16, TX_4X4 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X4, TX_4X4 + { { 0x0003000300030003ULL, 0x0003000300030003ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X32, TX_4X4 + { { 0x0000000000ff00ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X8, TX_4X4 + { { 0x000f000f000f000fULL, 0x000f000f000f000fULL, 0x000f000f000f000fULL, + 0x000f000f000f000fULL } }, // block size 16X64, TX_4X4 + { { 0xffffffffffffffffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_4X4 + // TX_8X8 + { { 0x0000000000010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X8, TX_8X8 + { { 0x0001000100010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X16, TX_8X8 + { { 0x0000000000050005ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X8, TX_8X8 + { { 0x0005000500050005ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X16, TX_8X8 + { { 0x0005000500050005ULL, 0x0005000500050005ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X32, TX_8X8 + { { 0x0055005500550055ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X16, TX_8X8 + { { 0x0055005500550055ULL, 0x0055005500550055ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X32, TX_8X8 + { { 0x0055005500550055ULL, 0x0055005500550055ULL, 0x0055005500550055ULL, + 0x0055005500550055ULL } }, // block size 32X64, TX_8X8 + { { 0x5555555555555555ULL, 0x5555555555555555ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_8X8 + { { 0x5555555555555555ULL, 0x5555555555555555ULL, 0x5555555555555555ULL, + 0x5555555555555555ULL } }, // block size 64X64, TX_8X8 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X32, TX_8X8 + { { 0x0000000000550055ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X8, TX_8X8 + { { 0x0005000500050005ULL, 0x0005000500050005ULL, 0x0005000500050005ULL, + 0x0005000500050005ULL } }, // block size 16X64, TX_8X8 + { { 0x5555555555555555ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_8X8 + // TX_16X16 + { { 0x0001000100010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X16, TX_16X16 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X32, TX_16X16 + { { 0x0011001100110011ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X16, TX_16X16 + { { 0x0011001100110011ULL, 0x0011001100110011ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X32, TX_16X16 + { { 0x0011001100110011ULL, 0x0011001100110011ULL, 0x0011001100110011ULL, + 0x0011001100110011ULL } }, // block size 32X64, TX_16X16 + { { 0x1111111111111111ULL, 0x1111111111111111ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_16X16 + { { 0x1111111111111111ULL, 0x1111111111111111ULL, 0x1111111111111111ULL, + 0x1111111111111111ULL } }, // block size 64X64, TX_16X16 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0001000100010001ULL, + 0x0001000100010001ULL } }, // block size 16X64, TX_16X16 + { { 0x1111111111111111ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_16X16 + // TX_32X32 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X32, TX_32X32 + { { 0x0101010101010101ULL, 0x0101010101010101ULL, 0x0101010101010101ULL, + 0x0101010101010101ULL } }, // block size 32X64, TX_32X32 + { { 0x0101010101010101ULL, 0x0101010101010101ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_32X32 + { { 0x0101010101010101ULL, 0x0101010101010101ULL, 0x0101010101010101ULL, + 0x0101010101010101ULL } }, // block size 64X64, TX_32X32 + // TX_64X64 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0001000100010001ULL, + 0x0001000100010001ULL } }, // block size 64X64, TX_64X64 + // 2:1, 1:2 transform sizes. + { { 0x0000000000010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X8, TX_4X8 + { { 0x0001000100010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X16, TX_4X8 + { { 0x0000000000000001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X4, TX_8X4 + { { 0x0000000000000005ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X4, TX_8X4 + { { 0x0001000100010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X16, TX_8X16 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X32, TX_8X16 + { { 0x0000000000010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X8, TX_16X8 + { { 0x0000000000110011ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X8, TX_16X8 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X32, TX_16X32 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0001000100010001ULL, + 0x0001000100010001ULL } }, // block size 16X64, TX_16X32 + { { 0x0001000100010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X16, TX_32X16 + { { 0x0101010101010101ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_32X16 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0001000100010001ULL, + 0x0001000100010001ULL } }, // block size 32X64, TX_32X64 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_64X32 + // 4:1, 1:4 transform sizes. + { { 0x0001000100010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X16, TX_4X16 + { { 0x0000000000000001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X4, TX_16X4 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X32, TX_8X32 + { { 0x0000000000010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X8, TX_32X8 + { { 0x0001000100010001ULL, 0x0001000100010001ULL, 0x0001000100010001ULL, + 0x0001000100010001ULL } }, // block size 16X64, TX_16X64 + { { 0x0001000100010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_64X16 +}; + +const FilterMask above_mask_univariant_reordered[67] = { + // TX_4X4 + { { 0x0000000000000001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X4, TX_4X4 + { { 0x0000000000010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X8, TX_4X4 + { { 0x0000000000000003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X4, TX_4X4 + { { 0x0000000000030003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X8, TX_4X4 + { { 0x0003000300030003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X16, TX_4X4 + { { 0x00000000000f000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X8, TX_4X4 + { { 0x000f000f000f000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X16, TX_4X4 + { { 0x000f000f000f000fULL, 0x000f000f000f000fULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X32, TX_4X4 + { { 0x00ff00ff00ff00ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X16, TX_4X4 + { { 0x00ff00ff00ff00ffULL, 0x00ff00ff00ff00ffULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X32, TX_4X4 + { { 0x00ff00ff00ff00ffULL, 0x00ff00ff00ff00ffULL, 0x00ff00ff00ff00ffULL, + 0x00ff00ff00ff00ffULL } }, // block size 32X64, TX_4X4 + { { 0xffffffffffffffffULL, 0xffffffffffffffffULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_4X4 + { { 0xffffffffffffffffULL, 0xffffffffffffffffULL, 0xffffffffffffffffULL, + 0xffffffffffffffffULL } }, // block size 64X64, TX_4x4 + { { 0x0001000100010001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X16, TX_4X4 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X4, TX_4X4 + { { 0x0003000300030003ULL, 0x0003000300030003ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X32, TX_4X4 + { { 0x0000000000ff00ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X8, TX_4X4 + { { 0x000f000f000f000fULL, 0x000f000f000f000fULL, 0x000f000f000f000fULL, + 0x000f000f000f000fULL } }, // block size 16X64, TX_4X4 + { { 0xffffffffffffffffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_4X4 + // TX_8X8 + { { 0x0000000000000003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X8, TX_8X8 + { { 0x0000000300000003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X16, TX_8X8 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X8, TX_8X8 + { { 0x0000000f0000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X16, TX_8X8 + { { 0x0000000f0000000fULL, 0x0000000f0000000fULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X32, TX_8X8 + { { 0x000000ff000000ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X16, TX_8X8 + { { 0x000000ff000000ffULL, 0x000000ff000000ffULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X32, TX_8X8 + { { 0x000000ff000000ffULL, 0x000000ff000000ffULL, 0x000000ff000000ffULL, + 0x000000ff000000ffULL } }, // block size 32X64, TX_8X8 + { { 0x0000ffff0000ffffULL, 0x0000ffff0000ffffULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_8X8 + { { 0x0000ffff0000ffffULL, 0x0000ffff0000ffffULL, 0x0000ffff0000ffffULL, + 0x0000ffff0000ffffULL } }, // block size 64X64, TX_8X8 + { { 0x0000000300000003ULL, 0x0000000300000003ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X32, TX_8X8 + { { 0x00000000000000ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X8, TX_8X8 + { { 0x0000000f0000000fULL, 0x0000000f0000000fULL, 0x0000000f0000000fULL, + 0x0000000f0000000fULL } }, // block size 16X64, TX_8X8 + { { 0x0000ffff0000ffffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_8X8 + // TX_16X16 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X16, TX_16X16 + { { 0x000000000000000fULL, 0x000000000000000fULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X32, TX_16X16 + { { 0x00000000000000ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X16, TX_16X16 + { { 0x00000000000000ffULL, 0x00000000000000ffULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X32, TX_16X16 + { { 0x00000000000000ffULL, 0x00000000000000ffULL, 0x00000000000000ffULL, + 0x00000000000000ffULL } }, // block size 32X64, TX_16X16 + { { 0x000000000000ffffULL, 0x000000000000ffffULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_16X16 + { { 0x000000000000ffffULL, 0x000000000000ffffULL, 0x000000000000ffffULL, + 0x000000000000ffffULL } }, // block size 64X64, TX_16X16 + { { 0x000000000000000fULL, 0x000000000000000fULL, 0x000000000000000fULL, + 0x000000000000000fULL } }, // block size 16X64, TX_16X16 + { { 0x000000000000ffffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_16X16 + // TX_32X32 + { { 0x00000000000000ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X32, TX_32X32 + { { 0x00000000000000ffULL, 0x0000000000000000ULL, 0x00000000000000ffULL, + 0x0000000000000000ULL } }, // block size 32X64, TX_32X32 + { { 0x000000000000ffffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_32X32 + { { 0x000000000000ffffULL, 0x0000000000000000ULL, 0x000000000000ffffULL, + 0x0000000000000000ULL } }, // block size 64X64, TX_32X32 + // TX_64X64 + { { 0x000000000000ffffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X64, TX_64X64 + // 2:1, 1:2 transform sizes. + { { 0x0000000000000001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X8, TX_4X8 + { { 0x0000000100000001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X16, TX_4X8 + { { 0x0000000000000003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X4, TX_8X4 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X4, TX_8X4 + { { 0x0000000000000003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X16, TX_8X16 + { { 0x0000000000000003ULL, 0x0000000000000003ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X32, TX_8X16 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X8, TX_16X8 + { { 0x00000000000000ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X8, TX_16X8 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X32, TX_16X32 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x000000000000000fULL, + 0x0000000000000000ULL } }, // block size 16X64, TX_16X32 + { { 0x00000000000000ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X16, TX_32X16 + { { 0x000000000000ffffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_32X16 + { { 0x00000000000000ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X64, TX_32X64 + { { 0x000000000000ffffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X32, TX_64X32 + // 4:1, 1:4 transform sizes. + { { 0x0000000000000001ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 4X16, TX_4X16 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X4, TX_16X4 + { { 0x0000000000000003ULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 8X32, TX_8X32 + { { 0x00000000000000ffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 32X8, TX_32X8 + { { 0x000000000000000fULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 16X64, TX_16X64 + { { 0x000000000000ffffULL, 0x0000000000000000ULL, 0x0000000000000000ULL, + 0x0000000000000000ULL } }, // block size 64X16, TX_64X16 +}; + +LoopFilterMask *get_loop_filter_mask(const AV1_COMMON *const cm, int mi_row, + int mi_col) { + assert(cm->lf.lfm != NULL); + const int row = mi_row >> MIN_MIB_SIZE_LOG2; // 64x64 + const int col = mi_col >> MIN_MIB_SIZE_LOG2; + return &cm->lf.lfm[row * cm->lf.lfm_stride + col]; +} + +typedef void (*LpfFunc)(uint8_t *s, int p, const uint8_t *blimit, + const uint8_t *limit, const uint8_t *thresh); + +typedef void (*LpfDualFunc)(uint8_t *s, int p, const uint8_t *blimit0, + const uint8_t *limit0, const uint8_t *thresh0, + const uint8_t *blimit1, const uint8_t *limit1, + const uint8_t *thresh1); + +typedef void (*HbdLpfFunc)(uint16_t *s, int p, const uint8_t *blimit, + const uint8_t *limit, const uint8_t *thresh, int bd); + +typedef void (*HbdLpfDualFunc)(uint16_t *s, int p, const uint8_t *blimit0, + const uint8_t *limit0, const uint8_t *thresh0, + const uint8_t *blimit1, const uint8_t *limit1, + const uint8_t *thresh1, int bd); +#endif // LOOP_FILTER_BITMASK + +static void update_sharpness(loop_filter_info_n *lfi, int sharpness_lvl) { + int lvl; + + // For each possible value for the loop filter fill out limits + for (lvl = 0; lvl <= MAX_LOOP_FILTER; lvl++) { + // Set loop filter parameters that control sharpness. + int block_inside_limit = lvl >> ((sharpness_lvl > 0) + (sharpness_lvl > 4)); + + if (sharpness_lvl > 0) { + if (block_inside_limit > (9 - sharpness_lvl)) + block_inside_limit = (9 - sharpness_lvl); + } + + if (block_inside_limit < 1) block_inside_limit = 1; + + memset(lfi->lfthr[lvl].lim, block_inside_limit, SIMD_WIDTH); + memset(lfi->lfthr[lvl].mblim, (2 * (lvl + 2) + block_inside_limit), + SIMD_WIDTH); + } +} + +uint8_t get_filter_level(const AV1_COMMON *cm, const loop_filter_info_n *lfi_n, + const int dir_idx, int plane, + const MB_MODE_INFO *mbmi) { + const int segment_id = mbmi->segment_id; + if (cm->delta_lf_present_flag) { + int delta_lf; + if (cm->delta_lf_multi) { + const int delta_lf_idx = delta_lf_id_lut[plane][dir_idx]; + delta_lf = mbmi->delta_lf[delta_lf_idx]; + } else { + delta_lf = mbmi->delta_lf_from_base; + } + int base_level; + if (plane == 0) + base_level = cm->lf.filter_level[dir_idx]; + else if (plane == 1) + base_level = cm->lf.filter_level_u; + else + base_level = cm->lf.filter_level_v; + int lvl_seg = clamp(delta_lf + base_level, 0, MAX_LOOP_FILTER); + assert(plane >= 0 && plane <= 2); + const int seg_lf_feature_id = seg_lvl_lf_lut[plane][dir_idx]; + if (segfeature_active(&cm->seg, segment_id, seg_lf_feature_id)) { + const int data = get_segdata(&cm->seg, segment_id, seg_lf_feature_id); + lvl_seg = clamp(lvl_seg + data, 0, MAX_LOOP_FILTER); + } + + if (cm->lf.mode_ref_delta_enabled) { + const int scale = 1 << (lvl_seg >> 5); + lvl_seg += cm->lf.ref_deltas[mbmi->ref_frame[0]] * scale; + if (mbmi->ref_frame[0] > INTRA_FRAME) + lvl_seg += cm->lf.mode_deltas[mode_lf_lut[mbmi->mode]] * scale; + lvl_seg = clamp(lvl_seg, 0, MAX_LOOP_FILTER); + } + return lvl_seg; + } else { + return lfi_n->lvl[plane][segment_id][dir_idx][mbmi->ref_frame[0]] + [mode_lf_lut[mbmi->mode]]; + } +} + +void av1_loop_filter_init(AV1_COMMON *cm) { + assert(MB_MODE_COUNT == NELEMENTS(mode_lf_lut)); + loop_filter_info_n *lfi = &cm->lf_info; + struct loopfilter *lf = &cm->lf; + int lvl; + + lf->combine_vert_horz_lf = 1; + + // init limits for given sharpness + update_sharpness(lfi, lf->sharpness_level); + + // init hev threshold const vectors + for (lvl = 0; lvl <= MAX_LOOP_FILTER; lvl++) + memset(lfi->lfthr[lvl].hev_thr, (lvl >> 4), SIMD_WIDTH); +} + +// Update the loop filter for the current frame. +// This should be called before loop_filter_rows(), +// av1_loop_filter_frame() calls this function directly. +void av1_loop_filter_frame_init(AV1_COMMON *cm, int plane_start, + int plane_end) { + int filt_lvl[MAX_MB_PLANE], filt_lvl_r[MAX_MB_PLANE]; + int plane; + int seg_id; + // n_shift is the multiplier for lf_deltas + // the multiplier is 1 for when filter_lvl is between 0 and 31; + // 2 when filter_lvl is between 32 and 63 + loop_filter_info_n *const lfi = &cm->lf_info; + struct loopfilter *const lf = &cm->lf; + const struct segmentation *const seg = &cm->seg; + + // update sharpness limits + update_sharpness(lfi, lf->sharpness_level); + + filt_lvl[0] = cm->lf.filter_level[0]; + filt_lvl[1] = cm->lf.filter_level_u; + filt_lvl[2] = cm->lf.filter_level_v; + + filt_lvl_r[0] = cm->lf.filter_level[1]; + filt_lvl_r[1] = cm->lf.filter_level_u; + filt_lvl_r[2] = cm->lf.filter_level_v; + + for (plane = plane_start; plane < plane_end; plane++) { + if (plane == 0 && !filt_lvl[0] && !filt_lvl_r[0]) + break; + else if (plane == 1 && !filt_lvl[1]) + continue; + else if (plane == 2 && !filt_lvl[2]) + continue; + + for (seg_id = 0; seg_id < MAX_SEGMENTS; seg_id++) { + for (int dir = 0; dir < 2; ++dir) { + int lvl_seg = (dir == 0) ? filt_lvl[plane] : filt_lvl_r[plane]; + assert(plane >= 0 && plane <= 2); + const int seg_lf_feature_id = seg_lvl_lf_lut[plane][dir]; + if (segfeature_active(seg, seg_id, seg_lf_feature_id)) { + const int data = get_segdata(&cm->seg, seg_id, seg_lf_feature_id); + lvl_seg = clamp(lvl_seg + data, 0, MAX_LOOP_FILTER); + } + + if (!lf->mode_ref_delta_enabled) { + // we could get rid of this if we assume that deltas are set to + // zero when not in use; encoder always uses deltas + memset(lfi->lvl[plane][seg_id][dir], lvl_seg, + sizeof(lfi->lvl[plane][seg_id][dir])); + } else { + int ref, mode; + const int scale = 1 << (lvl_seg >> 5); + const int intra_lvl = lvl_seg + lf->ref_deltas[INTRA_FRAME] * scale; + lfi->lvl[plane][seg_id][dir][INTRA_FRAME][0] = + clamp(intra_lvl, 0, MAX_LOOP_FILTER); + + for (ref = LAST_FRAME; ref < REF_FRAMES; ++ref) { + for (mode = 0; mode < MAX_MODE_LF_DELTAS; ++mode) { + const int inter_lvl = lvl_seg + lf->ref_deltas[ref] * scale + + lf->mode_deltas[mode] * scale; + lfi->lvl[plane][seg_id][dir][ref][mode] = + clamp(inter_lvl, 0, MAX_LOOP_FILTER); + } + } + } + } + } + } +} + +#if LOOP_FILTER_BITMASK +// A 64x64 tx block requires 256 bits to represent each 4x4 tx block. +// Every 4 rows is represented by one uint64_t mask. Hence, +// there are 4 uint64_t bitmask[4] to represent the 64x64 block. +// +// Given a location by (mi_col, mi_row), This function returns the index +// 0, 1, 2, 3 to select which bitmask[] to use, and the shift value. +// +// For example, mi_row is the offset of pixels in mi size (4), +// (mi_row / 4) returns which uint64_t. +// After locating which uint64_t, mi_row % 4 is the +// row offset, and each row has 16 = 1 << stride_log2 4x4 units. +// Therefore, shift = (row << stride_log2) + mi_col; +int get_index_shift(int mi_col, int mi_row, int *index) { + // *index = mi_row >> 2; + // rows = mi_row % 4; + // stride_log2 = 4; + // shift = (rows << stride_log2) + mi_col; + *index = mi_row >> 2; + return ((mi_row & 3) << 4) | mi_col; +} + +static void check_mask(const FilterMask *lfm) { +#ifndef NDEBUG + for (int i = 0; i < 4; ++i) { + assert(!(lfm[TX_4X4].bits[i] & lfm[TX_8X8].bits[i])); + assert(!(lfm[TX_4X4].bits[i] & lfm[TX_16X16].bits[i])); + assert(!(lfm[TX_4X4].bits[i] & lfm[TX_32X32].bits[i])); + assert(!(lfm[TX_4X4].bits[i] & lfm[TX_64X64].bits[i])); + assert(!(lfm[TX_8X8].bits[i] & lfm[TX_16X16].bits[i])); + assert(!(lfm[TX_8X8].bits[i] & lfm[TX_32X32].bits[i])); + assert(!(lfm[TX_8X8].bits[i] & lfm[TX_64X64].bits[i])); + assert(!(lfm[TX_16X16].bits[i] & lfm[TX_32X32].bits[i])); + assert(!(lfm[TX_16X16].bits[i] & lfm[TX_64X64].bits[i])); + assert(!(lfm[TX_32X32].bits[i] & lfm[TX_64X64].bits[i])); + } +#else + (void)lfm; +#endif +} + +static void check_loop_filter_masks(const LoopFilterMask *lfm, int plane) { + if (plane == 0) { + // Assert if we try to apply 2 different loop filters at the same + // position. + check_mask(lfm->left_y); + check_mask(lfm->above_y); + } else if (plane == 1) { + check_mask(lfm->left_u); + check_mask(lfm->above_u); + } else { + check_mask(lfm->left_v); + check_mask(lfm->above_v); + } +} + +static void update_masks(EDGE_DIR dir, int plane, uint64_t *mask, + TX_SIZE sqr_tx_size, LoopFilterMask *lfm) { + if (dir == VERT_EDGE) { + switch (plane) { + case 0: + for (int i = 0; i < 4; ++i) lfm->left_y[sqr_tx_size].bits[i] |= mask[i]; + break; + case 1: + for (int i = 0; i < 4; ++i) lfm->left_u[sqr_tx_size].bits[i] |= mask[i]; + break; + case 2: + for (int i = 0; i < 4; ++i) lfm->left_v[sqr_tx_size].bits[i] |= mask[i]; + break; + default: assert(plane <= 2); + } + } else { + switch (plane) { + case 0: + for (int i = 0; i < 4; ++i) + lfm->above_y[sqr_tx_size].bits[i] |= mask[i]; + break; + case 1: + for (int i = 0; i < 4; ++i) + lfm->above_u[sqr_tx_size].bits[i] |= mask[i]; + break; + case 2: + for (int i = 0; i < 4; ++i) + lfm->above_v[sqr_tx_size].bits[i] |= mask[i]; + break; + default: assert(plane <= 2); + } + } +} + +static int is_frame_boundary(AV1_COMMON *const cm, int plane, int mi_row, + int mi_col, int ssx, int ssy, EDGE_DIR dir) { + if (plane && (ssx || ssy)) { + if (ssx && ssy) { // format 420 + if ((mi_row << MI_SIZE_LOG2) > cm->height || + (mi_col << MI_SIZE_LOG2) > cm->width) + return 1; + } else if (ssx) { // format 422 + if ((mi_row << MI_SIZE_LOG2) >= cm->height || + (mi_col << MI_SIZE_LOG2) > cm->width) + return 1; + } + } else { + if ((mi_row << MI_SIZE_LOG2) >= cm->height || + (mi_col << MI_SIZE_LOG2) >= cm->width) + return 1; + } + + int row_or_col; + if (plane == 0) { + row_or_col = dir == VERT_EDGE ? mi_col : mi_row; + } else { + // chroma sub8x8 block uses bottom/right mi of co-located 8x8 luma block. + // So if mi_col == 1, it is actually the frame boundary. + if (dir == VERT_EDGE) { + row_or_col = ssx ? (mi_col & 0x0FFFFFFE) : mi_col; + } else { + row_or_col = ssy ? (mi_row & 0x0FFFFFFE) : mi_row; + } + } + return row_or_col == 0; +} + +static void setup_masks(AV1_COMMON *const cm, int mi_row, int mi_col, int plane, + int ssx, int ssy, TX_SIZE tx_size) { + LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row, mi_col); + const int x = (mi_col << (MI_SIZE_LOG2 - ssx)); + const int y = (mi_row << (MI_SIZE_LOG2 - ssy)); + // decide whether current vertical/horizontal edge needs loop filtering + for (EDGE_DIR dir = VERT_EDGE; dir <= HORZ_EDGE; ++dir) { + // chroma sub8x8 block uses bottom/right mi of co-located 8x8 luma block. + mi_row |= ssy; + mi_col |= ssx; + + MB_MODE_INFO **mi = cm->mi_grid_visible + mi_row * cm->mi_stride + mi_col; + const MB_MODE_INFO *const mbmi = mi[0]; + const int curr_skip = mbmi->skip && is_inter_block(mbmi); + const BLOCK_SIZE bsize = mbmi->sb_type; + const BLOCK_SIZE bsizec = scale_chroma_bsize(bsize, ssx, ssy); + const BLOCK_SIZE plane_bsize = ss_size_lookup[bsizec][ssx][ssy]; + const uint8_t level = get_filter_level(cm, &cm->lf_info, dir, plane, mbmi); + const int prediction_masks = dir == VERT_EDGE + ? block_size_wide[plane_bsize] - 1 + : block_size_high[plane_bsize] - 1; + const int is_coding_block_border = + dir == VERT_EDGE ? !(x & prediction_masks) : !(y & prediction_masks); + + // TODO(chengchen): step can be optimized. + const int row_step = mi_size_high[TX_4X4] << ssy; + const int col_step = mi_size_wide[TX_4X4] << ssx; + const int mi_height = + dir == VERT_EDGE ? tx_size_high_unit[tx_size] << ssy : row_step; + const int mi_width = + dir == VERT_EDGE ? col_step : tx_size_wide_unit[tx_size] << ssx; + + // assign filter levels + for (int r = mi_row; r < mi_row + mi_height; r += row_step) { + for (int c = mi_col; c < mi_col + mi_width; c += col_step) { + // do not filter frame boundary + // Note: when chroma planes' size are half of luma plane, + // chroma plane mi corresponds to even position. + // If frame size is not even, we still need to filter this chroma + // position. Therefore the boundary condition check needs to be + // separated to two cases. + if (plane && (ssx || ssy)) { + if (ssx && ssy) { // format 420 + if ((r << MI_SIZE_LOG2) > cm->height || + (c << MI_SIZE_LOG2) > cm->width) + continue; + } else if (ssx) { // format 422 + if ((r << MI_SIZE_LOG2) >= cm->height || + (c << MI_SIZE_LOG2) > cm->width) + continue; + } + } else { + if ((r << MI_SIZE_LOG2) >= cm->height || + (c << MI_SIZE_LOG2) >= cm->width) + continue; + } + + const int row = r % MI_SIZE_64X64; + const int col = c % MI_SIZE_64X64; + if (plane == 0) { + if (dir == VERT_EDGE) + lfm->lfl_y_ver[row][col] = level; + else + lfm->lfl_y_hor[row][col] = level; + } else if (plane == 1) { + lfm->lfl_u[row][col] = level; + } else { + lfm->lfl_v[row][col] = level; + } + } + } + + for (int r = mi_row; r < mi_row + mi_height; r += row_step) { + for (int c = mi_col; c < mi_col + mi_width; c += col_step) { + // do not filter frame boundary + if (is_frame_boundary(cm, plane, r, c, ssx, ssy, dir)) continue; + + uint64_t mask[4] = { 0 }; + const int prev_row = dir == VERT_EDGE ? r : r - (1 << ssy); + const int prev_col = dir == VERT_EDGE ? c - (1 << ssx) : c; + MB_MODE_INFO **mi_prev = + cm->mi_grid_visible + prev_row * cm->mi_stride + prev_col; + const MB_MODE_INFO *const mbmi_prev = mi_prev[0]; + const int prev_skip = mbmi_prev->skip && is_inter_block(mbmi_prev); + const uint8_t level_prev = + get_filter_level(cm, &cm->lf_info, dir, plane, mbmi_prev); + const int is_edge = + (level || level_prev) && + (!curr_skip || !prev_skip || is_coding_block_border); + + if (is_edge) { + const TX_SIZE prev_tx_size = + plane ? av1_get_max_uv_txsize(mbmi_prev->sb_type, ssx, ssy) + : mbmi_prev->tx_size; + TX_SIZE min_tx_size = (dir == VERT_EDGE) + ? AOMMIN(txsize_horz_map[tx_size], + txsize_horz_map[prev_tx_size]) + : AOMMIN(txsize_vert_map[tx_size], + txsize_vert_map[prev_tx_size]); + min_tx_size = AOMMIN(min_tx_size, TX_16X16); + assert(min_tx_size < TX_SIZES); + const int row = r % MI_SIZE_64X64; + const int col = c % MI_SIZE_64X64; + int index = 0; + const int shift = get_index_shift(col, row, &index); + assert(index < 4 && index >= 0); + mask[index] |= ((uint64_t)1 << shift); + // set mask on corresponding bit + update_masks(dir, plane, mask, min_tx_size, lfm); + } + } + } + } +} + +static void setup_tx_block_mask(AV1_COMMON *const cm, int mi_row, int mi_col, + int blk_row, int blk_col, + BLOCK_SIZE plane_bsize, TX_SIZE tx_size, + int plane, int ssx, int ssy) { + blk_row <<= ssy; + blk_col <<= ssx; + if (((mi_row + blk_row) << MI_SIZE_LOG2) >= cm->height || + ((mi_col + blk_col) << MI_SIZE_LOG2) >= cm->width) + return; + + // U/V plane, tx_size is always the largest size + if (plane) { + assert(tx_size_wide[tx_size] <= 32 && tx_size_high[tx_size] <= 32); + setup_masks(cm, mi_row + blk_row, mi_col + blk_col, plane, ssx, ssy, + tx_size); + return; + } + + MB_MODE_INFO **mi = cm->mi_grid_visible + mi_row * cm->mi_stride + mi_col; + const MB_MODE_INFO *const mbmi = mi[0]; + // For Y plane: + // If intra block, tx size is univariant. + // If inter block, tx size follows inter_tx_size. + TX_SIZE plane_tx_size = tx_size; + const int is_inter = is_inter_block(mbmi); + + if (plane == 0) { + if (is_inter) { + if (mbmi->skip) { + // TODO(chengchen): change av1_get_transform_size() to be consistant. + // plane_tx_size = get_max_rect_tx_size(plane_bsize); + plane_tx_size = mbmi->tx_size; + } else { + plane_tx_size = mbmi->inter_tx_size[av1_get_txb_size_index( + plane_bsize, blk_row, blk_col)]; + } + } else { + MB_MODE_INFO **mi_this = cm->mi_grid_visible + + (mi_row + blk_row) * cm->mi_stride + mi_col + + blk_col; + const MB_MODE_INFO *const mbmi_this = mi_this[0]; + plane_tx_size = mbmi_this->tx_size; + } + } + + assert(txsize_to_bsize[plane_tx_size] <= plane_bsize); + + if (plane || plane_tx_size == tx_size) { + setup_masks(cm, mi_row + blk_row, mi_col + blk_col, plane, ssx, ssy, + tx_size); + } else { + const TX_SIZE sub_txs = sub_tx_size_map[tx_size]; + const int bsw = tx_size_wide_unit[sub_txs]; + const int bsh = tx_size_high_unit[sub_txs]; + for (int row = 0; row < tx_size_high_unit[tx_size]; row += bsh) { + for (int col = 0; col < tx_size_wide_unit[tx_size]; col += bsw) { + const int offsetr = blk_row + row; + const int offsetc = blk_col + col; + setup_tx_block_mask(cm, mi_row, mi_col, offsetr, offsetc, plane_bsize, + sub_txs, plane, ssx, ssy); + } + } + } +} + +static void setup_fix_block_mask(AV1_COMMON *const cm, int mi_row, int mi_col, + int plane, int ssx, int ssy) { + MB_MODE_INFO **mi = + cm->mi_grid_visible + (mi_row | ssy) * cm->mi_stride + (mi_col | ssx); + const MB_MODE_INFO *const mbmi = mi[0]; + + const BLOCK_SIZE bsize = mbmi->sb_type; + const BLOCK_SIZE bsizec = scale_chroma_bsize(bsize, ssx, ssy); + const BLOCK_SIZE plane_bsize = ss_size_lookup[bsizec][ssx][ssy]; + + const int block_width = mi_size_wide[plane_bsize]; + const int block_height = mi_size_high[plane_bsize]; + + TX_SIZE max_txsize = max_txsize_rect_lookup[plane_bsize]; + // The decoder is designed so that it can process 64x64 luma pixels at a + // time. If this is a chroma plane with subsampling and bsize corresponds to + // a subsampled BLOCK_128X128 then the lookup above will give TX_64X64. That + // mustn't be used for the subsampled plane (because it would be bigger than + // a 64x64 luma block) so we round down to TX_32X32. + if (plane && txsize_sqr_up_map[max_txsize] == TX_64X64) { + if (max_txsize == TX_16X64) + max_txsize = TX_16X32; + else if (max_txsize == TX_64X16) + max_txsize = TX_32X16; + else + max_txsize = TX_32X32; + } + + const BLOCK_SIZE txb_size = txsize_to_bsize[max_txsize]; + const int bw = block_size_wide[txb_size] >> tx_size_wide_log2[0]; + const int bh = block_size_high[txb_size] >> tx_size_wide_log2[0]; + const BLOCK_SIZE max_unit_bsize = ss_size_lookup[BLOCK_64X64][ssx][ssy]; + int mu_blocks_wide = block_size_wide[max_unit_bsize] >> tx_size_wide_log2[0]; + int mu_blocks_high = block_size_high[max_unit_bsize] >> tx_size_high_log2[0]; + + mu_blocks_wide = AOMMIN(block_width, mu_blocks_wide); + mu_blocks_high = AOMMIN(block_height, mu_blocks_high); + + // Y: Largest tx_size is 64x64, while superblock size can be 128x128. + // Here we ensure that setup_tx_block_mask process at most a 64x64 block. + // U/V: largest tx size is 32x32. + for (int idy = 0; idy < block_height; idy += mu_blocks_high) { + for (int idx = 0; idx < block_width; idx += mu_blocks_wide) { + const int unit_height = AOMMIN(mu_blocks_high + idy, block_height); + const int unit_width = AOMMIN(mu_blocks_wide + idx, block_width); + for (int blk_row = idy; blk_row < unit_height; blk_row += bh) { + for (int blk_col = idx; blk_col < unit_width; blk_col += bw) { + setup_tx_block_mask(cm, mi_row, mi_col, blk_row, blk_col, plane_bsize, + max_txsize, plane, ssx, ssy); + } + } + } + } +} + +static void setup_block_mask(AV1_COMMON *const cm, int mi_row, int mi_col, + BLOCK_SIZE bsize, int plane, int ssx, int ssy) { + if ((mi_row << MI_SIZE_LOG2) >= cm->height || + (mi_col << MI_SIZE_LOG2) >= cm->width) + return; + + const PARTITION_TYPE partition = get_partition(cm, mi_row, mi_col, bsize); + const BLOCK_SIZE subsize = get_partition_subsize(bsize, partition); + const int hbs = mi_size_wide[bsize] / 2; + const int quarter_step = mi_size_wide[bsize] / 4; + const int allow_sub8x8 = (ssx || ssy) ? bsize > BLOCK_8X8 : 1; + const int has_next_row = + (((mi_row + hbs) << MI_SIZE_LOG2) < cm->height) & allow_sub8x8; + const int has_next_col = + (((mi_col + hbs) << MI_SIZE_LOG2) < cm->width) & allow_sub8x8; + int i; + + switch (partition) { + case PARTITION_NONE: + setup_fix_block_mask(cm, mi_row, mi_col, plane, ssx, ssy); + break; + case PARTITION_HORZ: + setup_fix_block_mask(cm, mi_row, mi_col, plane, ssx, ssy); + if (has_next_row) + setup_fix_block_mask(cm, mi_row + hbs, mi_col, plane, ssx, ssy); + break; + case PARTITION_VERT: + setup_fix_block_mask(cm, mi_row, mi_col, plane, ssx, ssy); + if (has_next_col) + setup_fix_block_mask(cm, mi_row, mi_col + hbs, plane, ssx, ssy); + break; + case PARTITION_SPLIT: + setup_block_mask(cm, mi_row, mi_col, subsize, plane, ssx, ssy); + if (has_next_col) + setup_block_mask(cm, mi_row, mi_col + hbs, subsize, plane, ssx, ssy); + if (has_next_row) + setup_block_mask(cm, mi_row + hbs, mi_col, subsize, plane, ssx, ssy); + if (has_next_col & has_next_row) + setup_block_mask(cm, mi_row + hbs, mi_col + hbs, subsize, plane, ssx, + ssy); + break; + case PARTITION_HORZ_A: + setup_fix_block_mask(cm, mi_row, mi_col, plane, ssx, ssy); + if (has_next_col) + setup_fix_block_mask(cm, mi_row, mi_col + hbs, plane, ssx, ssy); + if (has_next_row) + setup_fix_block_mask(cm, mi_row + hbs, mi_col, plane, ssx, ssy); + break; + case PARTITION_HORZ_B: + setup_fix_block_mask(cm, mi_row, mi_col, plane, ssx, ssy); + if (has_next_row) + setup_fix_block_mask(cm, mi_row + hbs, mi_col, plane, ssx, ssy); + if (has_next_col & has_next_row) + setup_fix_block_mask(cm, mi_row + hbs, mi_col + hbs, plane, ssx, ssy); + break; + case PARTITION_VERT_A: + setup_fix_block_mask(cm, mi_row, mi_col, plane, ssx, ssy); + if (has_next_row) + setup_fix_block_mask(cm, mi_row + hbs, mi_col, plane, ssx, ssy); + if (has_next_col) + setup_fix_block_mask(cm, mi_row, mi_col + hbs, plane, ssx, ssy); + break; + case PARTITION_VERT_B: + setup_fix_block_mask(cm, mi_row, mi_col, plane, ssx, ssy); + if (has_next_col) + setup_fix_block_mask(cm, mi_row, mi_col + hbs, plane, ssx, ssy); + if (has_next_row) + setup_fix_block_mask(cm, mi_row + hbs, mi_col + hbs, plane, ssx, ssy); + break; + case PARTITION_HORZ_4: + for (i = 0; i < 4; ++i) { + int this_mi_row = mi_row + i * quarter_step; + if (i > 0 && (this_mi_row << MI_SIZE_LOG2) >= cm->height) break; + // chroma plane filter the odd location + if (plane && bsize == BLOCK_16X16 && (i & 0x01)) continue; + + setup_fix_block_mask(cm, this_mi_row, mi_col, plane, ssx, ssy); + } + break; + case PARTITION_VERT_4: + for (i = 0; i < 4; ++i) { + int this_mi_col = mi_col + i * quarter_step; + if (i > 0 && this_mi_col >= cm->mi_cols) break; + // chroma plane filter the odd location + if (plane && bsize == BLOCK_16X16 && (i & 0x01)) continue; + + setup_fix_block_mask(cm, mi_row, this_mi_col, plane, ssx, ssy); + } + break; + default: assert(0); + } +} + +// TODO(chengchen): if lossless, do not need to setup mask. But when +// segments enabled, each segment has different lossless settings. +void av1_setup_bitmask(AV1_COMMON *const cm, int mi_row, int mi_col, int plane, + int subsampling_x, int subsampling_y, int row_end, + int col_end) { + const int num_64x64 = cm->seq_params.mib_size >> MIN_MIB_SIZE_LOG2; + for (int y = 0; y < num_64x64; ++y) { + for (int x = 0; x < num_64x64; ++x) { + const int row = mi_row + y * MI_SIZE_64X64; + const int col = mi_col + x * MI_SIZE_64X64; + if (row >= row_end || col >= col_end) continue; + if ((row << MI_SIZE_LOG2) >= cm->height || + (col << MI_SIZE_LOG2) >= cm->width) + continue; + + LoopFilterMask *lfm = get_loop_filter_mask(cm, row, col); + if (lfm == NULL) return; + + // init mask to zero + if (plane == 0) { + av1_zero(lfm->left_y); + av1_zero(lfm->above_y); + av1_zero(lfm->lfl_y_ver); + av1_zero(lfm->lfl_y_hor); + } else if (plane == 1) { + av1_zero(lfm->left_u); + av1_zero(lfm->above_u); + av1_zero(lfm->lfl_u); + } else { + av1_zero(lfm->left_v); + av1_zero(lfm->above_v); + av1_zero(lfm->lfl_v); + } + } + } + + // set up bitmask for each superblock + setup_block_mask(cm, mi_row, mi_col, cm->seq_params.sb_size, plane, + subsampling_x, subsampling_y); + + for (int y = 0; y < num_64x64; ++y) { + for (int x = 0; x < num_64x64; ++x) { + const int row = mi_row + y * MI_SIZE_64X64; + const int col = mi_col + x * MI_SIZE_64X64; + if (row >= row_end || col >= col_end) continue; + if ((row << MI_SIZE_LOG2) >= cm->height || + (col << MI_SIZE_LOG2) >= cm->width) + continue; + + LoopFilterMask *lfm = get_loop_filter_mask(cm, row, col); + if (lfm == NULL) return; + + // check if the mask is valid + check_loop_filter_masks(lfm, plane); + + { + // Let 16x16 hold 32x32 (Y/U/V) and 64x64(Y only). + // Even tx size is greater, we only apply max length filter, which + // is 16. + if (plane == 0) { + for (int j = 0; j < 4; ++j) { + lfm->left_y[TX_16X16].bits[j] |= lfm->left_y[TX_32X32].bits[j]; + lfm->left_y[TX_16X16].bits[j] |= lfm->left_y[TX_64X64].bits[j]; + lfm->above_y[TX_16X16].bits[j] |= lfm->above_y[TX_32X32].bits[j]; + lfm->above_y[TX_16X16].bits[j] |= lfm->above_y[TX_64X64].bits[j]; + + // set 32x32 and 64x64 to 0 + lfm->left_y[TX_32X32].bits[j] = 0; + lfm->left_y[TX_64X64].bits[j] = 0; + lfm->above_y[TX_32X32].bits[j] = 0; + lfm->above_y[TX_64X64].bits[j] = 0; + } + } else if (plane == 1) { + for (int j = 0; j < 4; ++j) { + lfm->left_u[TX_16X16].bits[j] |= lfm->left_u[TX_32X32].bits[j]; + lfm->above_u[TX_16X16].bits[j] |= lfm->above_u[TX_32X32].bits[j]; + + // set 32x32 to 0 + lfm->left_u[TX_32X32].bits[j] = 0; + lfm->above_u[TX_32X32].bits[j] = 0; + } + } else { + for (int j = 0; j < 4; ++j) { + lfm->left_v[TX_16X16].bits[j] |= lfm->left_v[TX_32X32].bits[j]; + lfm->above_v[TX_16X16].bits[j] |= lfm->above_v[TX_32X32].bits[j]; + + // set 32x32 to 0 + lfm->left_v[TX_32X32].bits[j] = 0; + lfm->above_v[TX_32X32].bits[j] = 0; + } + } + } + + // check if the mask is valid + check_loop_filter_masks(lfm, plane); + } + } +} + +static void filter_selectively_vert_row2( + int subsampling_factor, uint8_t *s, int pitch, int plane, + uint64_t mask_16x16_0, uint64_t mask_8x8_0, uint64_t mask_4x4_0, + uint64_t mask_16x16_1, uint64_t mask_8x8_1, uint64_t mask_4x4_1, + const loop_filter_info_n *lfi_n, uint8_t *lfl, uint8_t *lfl2) { + uint64_t mask; + const int step = 1 << subsampling_factor; + + for (mask = mask_16x16_0 | mask_8x8_0 | mask_4x4_0 | mask_16x16_1 | + mask_8x8_1 | mask_4x4_1; + mask; mask >>= step) { + const loop_filter_thresh *lfi0 = lfi_n->lfthr + *lfl; + const loop_filter_thresh *lfi1 = lfi_n->lfthr + *lfl2; + + if (mask & 1) { + if ((mask_16x16_0 | mask_16x16_1) & 1) { + // chroma plane filters less pixels introduced in deblock_13tap + // experiment + LpfFunc lpf_vertical = plane ? aom_lpf_vertical_6 : aom_lpf_vertical_14; + + if ((mask_16x16_0 & mask_16x16_1) & 1) { + if (plane) { + aom_lpf_vertical_6_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, lfi1->lim, + lfi1->hev_thr); + } else { + aom_lpf_vertical_14_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, lfi1->lim, + lfi1->hev_thr); + } + } else if (mask_16x16_0 & 1) { + lpf_vertical(s, pitch, lfi0->mblim, lfi0->lim, lfi0->hev_thr); + } else { + lpf_vertical(s + 4 * pitch, pitch, lfi1->mblim, lfi1->lim, + lfi1->hev_thr); + } + } + + if ((mask_8x8_0 | mask_8x8_1) & 1) { + // chroma plane filters less pixels introduced in deblock_13tap + // experiment + LpfFunc lpf_vertical = plane ? aom_lpf_vertical_6 : aom_lpf_vertical_8; + + if ((mask_8x8_0 & mask_8x8_1) & 1) { + if (plane) { + aom_lpf_vertical_6_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, lfi1->lim, + lfi1->hev_thr); + } else { + aom_lpf_vertical_8_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, lfi1->lim, + lfi1->hev_thr); + } + } else if (mask_8x8_0 & 1) { + lpf_vertical(s, pitch, lfi0->mblim, lfi0->lim, lfi0->hev_thr); + } else { + lpf_vertical(s + 4 * pitch, pitch, lfi1->mblim, lfi1->lim, + lfi1->hev_thr); + } + } + + if ((mask_4x4_0 | mask_4x4_1) & 1) { + if ((mask_4x4_0 & mask_4x4_1) & 1) { + aom_lpf_vertical_4_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, lfi1->lim, + lfi1->hev_thr); + } else if (mask_4x4_0 & 1) { + aom_lpf_vertical_4(s, pitch, lfi0->mblim, lfi0->lim, lfi0->hev_thr); + } else { + aom_lpf_vertical_4(s + 4 * pitch, pitch, lfi1->mblim, lfi1->lim, + lfi1->hev_thr); + } + } + } + + s += 4; + lfl += step; + lfl2 += step; + mask_16x16_0 >>= step; + mask_8x8_0 >>= step; + mask_4x4_0 >>= step; + mask_16x16_1 >>= step; + mask_8x8_1 >>= step; + mask_4x4_1 >>= step; + } +} + +static void highbd_filter_selectively_vert_row2( + int subsampling_factor, uint16_t *s, int pitch, int plane, + uint64_t mask_16x16_0, uint64_t mask_8x8_0, uint64_t mask_4x4_0, + uint64_t mask_16x16_1, uint64_t mask_8x8_1, uint64_t mask_4x4_1, + const loop_filter_info_n *lfi_n, uint8_t *lfl, uint8_t *lfl2, int bd) { + uint64_t mask; + const int step = 1 << subsampling_factor; + + for (mask = mask_16x16_0 | mask_8x8_0 | mask_4x4_0 | mask_16x16_1 | + mask_8x8_1 | mask_4x4_1; + mask; mask >>= step) { + const loop_filter_thresh *lfi0 = lfi_n->lfthr + *lfl; + const loop_filter_thresh *lfi1 = lfi_n->lfthr + *lfl2; + + if (mask & 1) { + if ((mask_16x16_0 | mask_16x16_1) & 1) { + // chroma plane filters less pixels introduced in deblock_13tap + // experiment + HbdLpfFunc highbd_lpf_vertical = + plane ? aom_highbd_lpf_vertical_6 : aom_highbd_lpf_vertical_14; + + if ((mask_16x16_0 & mask_16x16_1) & 1) { + if (plane) { + aom_highbd_lpf_vertical_6_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, + lfi1->lim, lfi1->hev_thr, bd); + } else { + aom_highbd_lpf_vertical_14_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, + lfi1->lim, lfi1->hev_thr, bd); + } + } else if (mask_16x16_0 & 1) { + highbd_lpf_vertical(s, pitch, lfi0->mblim, lfi0->lim, lfi0->hev_thr, + bd); + } else { + highbd_lpf_vertical(s + 4 * pitch, pitch, lfi1->mblim, lfi1->lim, + lfi1->hev_thr, bd); + } + } + + if ((mask_8x8_0 | mask_8x8_1) & 1) { + HbdLpfFunc highbd_lpf_vertical = + plane ? aom_highbd_lpf_vertical_6 : aom_highbd_lpf_vertical_8; + + if ((mask_8x8_0 & mask_8x8_1) & 1) { + if (plane) { + aom_highbd_lpf_vertical_6_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, + lfi1->lim, lfi1->hev_thr, bd); + } else { + aom_highbd_lpf_vertical_8_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, + lfi1->lim, lfi1->hev_thr, bd); + } + } else if (mask_8x8_0 & 1) { + highbd_lpf_vertical(s, pitch, lfi0->mblim, lfi0->lim, lfi0->hev_thr, + bd); + } else { + highbd_lpf_vertical(s + 4 * pitch, pitch, lfi1->mblim, lfi1->lim, + lfi1->hev_thr, bd); + } + } + + if ((mask_4x4_0 | mask_4x4_1) & 1) { + if ((mask_4x4_0 & mask_4x4_1) & 1) { + aom_highbd_lpf_vertical_4_dual(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, lfi1->mblim, lfi1->lim, + lfi1->hev_thr, bd); + } else if (mask_4x4_0 & 1) { + aom_highbd_lpf_vertical_4(s, pitch, lfi0->mblim, lfi0->lim, + lfi0->hev_thr, bd); + } else { + aom_highbd_lpf_vertical_4(s + 4 * pitch, pitch, lfi1->mblim, + lfi1->lim, lfi1->hev_thr, bd); + } + } + } + + s += 4; + lfl += step; + lfl2 += step; + mask_16x16_0 >>= step; + mask_8x8_0 >>= step; + mask_4x4_0 >>= step; + mask_16x16_1 >>= step; + mask_8x8_1 >>= step; + mask_4x4_1 >>= step; + } +} + +static void filter_selectively_horiz(uint8_t *s, int pitch, int plane, + int subsampling, uint64_t mask_16x16, + uint64_t mask_8x8, uint64_t mask_4x4, + const loop_filter_info_n *lfi_n, + const uint8_t *lfl) { + uint64_t mask; + int count; + const int step = 1 << subsampling; + const unsigned int two_block_mask = subsampling ? 5 : 3; + + for (mask = mask_16x16 | mask_8x8 | mask_4x4; mask; mask >>= step * count) { + const loop_filter_thresh *lfi = lfi_n->lfthr + *lfl; + // Next block's thresholds. + const loop_filter_thresh *lfin = lfi_n->lfthr + *(lfl + step); + + count = 1; + if (mask & 1) { + if (mask_16x16 & 1) { + // chroma plane filters less pixels introduced in deblock_13tap + // experiment + LpfFunc lpf_horizontal = + plane ? aom_lpf_horizontal_6 : aom_lpf_horizontal_14; + + if ((mask_16x16 & two_block_mask) == two_block_mask) { + if (plane) { + aom_lpf_horizontal_6_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, lfin->lim, + lfin->hev_thr); + } else { + aom_lpf_horizontal_14_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, lfin->lim, + lfin->hev_thr); + } + count = 2; + } else { + lpf_horizontal(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr); + } + } else if (mask_8x8 & 1) { + // chroma plane filters less pixels introduced in deblock_13tap + // experiment + LpfFunc lpf_horizontal = + plane ? aom_lpf_horizontal_6 : aom_lpf_horizontal_8; + + if ((mask_8x8 & two_block_mask) == two_block_mask) { + if (plane) { + aom_lpf_horizontal_6_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, lfin->lim, + lfin->hev_thr); + } else { + aom_lpf_horizontal_8_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, lfin->lim, + lfin->hev_thr); + } + count = 2; + } else { + lpf_horizontal(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr); + } + } else if (mask_4x4 & 1) { + if ((mask_4x4 & two_block_mask) == two_block_mask) { + aom_lpf_horizontal_4_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, lfin->lim, + lfin->hev_thr); + count = 2; + } else { + aom_lpf_horizontal_4(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr); + } + } + } + + s += 4 * count; + lfl += step * count; + mask_16x16 >>= step * count; + mask_8x8 >>= step * count; + mask_4x4 >>= step * count; + } +} + +static void highbd_filter_selectively_horiz( + uint16_t *s, int pitch, int plane, int subsampling, uint64_t mask_16x16, + uint64_t mask_8x8, uint64_t mask_4x4, const loop_filter_info_n *lfi_n, + uint8_t *lfl, int bd) { + uint64_t mask; + int count; + const int step = 1 << subsampling; + const unsigned int two_block_mask = subsampling ? 5 : 3; + + for (mask = mask_16x16 | mask_8x8 | mask_4x4; mask; mask >>= step * count) { + const loop_filter_thresh *lfi = lfi_n->lfthr + *lfl; + // Next block's thresholds. + const loop_filter_thresh *lfin = lfi_n->lfthr + *(lfl + step); + + count = 1; + if (mask & 1) { + if (mask_16x16 & 1) { + HbdLpfFunc highbd_lpf_horizontal = + plane ? aom_highbd_lpf_horizontal_6 : aom_highbd_lpf_horizontal_14; + + if ((mask_16x16 & two_block_mask) == two_block_mask) { + if (plane) { + aom_highbd_lpf_horizontal_6_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, + lfin->lim, lfin->hev_thr, bd); + } else { + aom_highbd_lpf_horizontal_14_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, + lfin->lim, lfin->hev_thr, bd); + } + count = 2; + } else { + highbd_lpf_horizontal(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr, + bd); + } + } else if (mask_8x8 & 1) { + HbdLpfFunc highbd_lpf_horizontal = + plane ? aom_highbd_lpf_horizontal_6 : aom_highbd_lpf_horizontal_8; + + if ((mask_8x8 & two_block_mask) == two_block_mask) { + if (plane) { + aom_highbd_lpf_horizontal_6_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, + lfin->lim, lfin->hev_thr, bd); + } else { + aom_highbd_lpf_horizontal_8_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, + lfin->lim, lfin->hev_thr, bd); + } + count = 2; + } else { + highbd_lpf_horizontal(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr, + bd); + } + } else if (mask_4x4 & 1) { + if ((mask_4x4 & two_block_mask) == two_block_mask) { + aom_highbd_lpf_horizontal_4_dual(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, lfin->mblim, lfin->lim, + lfin->hev_thr, bd); + count = 2; + } else { + aom_highbd_lpf_horizontal_4(s, pitch, lfi->mblim, lfi->lim, + lfi->hev_thr, bd); + } + } + } + + s += 4 * count; + lfl += step * count; + mask_16x16 >>= step * count; + mask_8x8 >>= step * count; + mask_4x4 >>= step * count; + } +} + +void av1_build_bitmask_vert_info( + AV1_COMMON *const cm, const struct macroblockd_plane *const plane_ptr, + int plane) { + const int subsampling_x = plane_ptr->subsampling_x; + const int subsampling_y = plane_ptr->subsampling_y; + const int row_step = (MI_SIZE >> MI_SIZE_LOG2); + const int is_uv = plane > 0; + TX_SIZE tx_size = TX_16X16, prev_tx_size = TX_16X16; + uint8_t level, prev_level = 1; + int skip, prev_skip = 0; + int is_coding_block_border; + + for (int r = 0; (r << MI_SIZE_LOG2) < plane_ptr->dst.height; r += row_step) { + const int mi_row = r << subsampling_y; + const int row = mi_row % MI_SIZE_64X64; + int index = 0; + const int shift = get_index_shift(0, row, &index); + + for (int c = 0; (c << MI_SIZE_LOG2) < plane_ptr->dst.width; + c += (tx_size_wide_unit[TX_64X64] >> subsampling_x)) { + const int mi_col = c << subsampling_x; + LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row, mi_col); + + for (int col_in_unit = 0; + col_in_unit < (tx_size_wide_unit[TX_64X64] >> subsampling_x);) { + const int x = (c + col_in_unit) << MI_SIZE_LOG2; + if (x >= plane_ptr->dst.width) break; + const int col = col_in_unit << subsampling_x; + const uint64_t mask = ((uint64_t)1 << (shift | col)); + skip = lfm->skip.bits[index] & mask; + is_coding_block_border = lfm->is_vert_border.bits[index] & mask; + switch (plane) { + case 0: level = lfm->lfl_y_ver[row][col]; break; + case 1: level = lfm->lfl_u[row][col]; break; + case 2: level = lfm->lfl_v[row][col]; break; + default: assert(plane >= 0 && plane <= 2); return; + } + for (TX_SIZE ts = TX_4X4; ts <= TX_64X64; ++ts) { + if (is_uv && ts == TX_64X64) continue; + if (lfm->tx_size_ver[is_uv][ts].bits[index] & mask) { + tx_size = ts; + break; + } + } + if ((c + col_in_unit > 0) && (level || prev_level) && + (!prev_skip || !skip || is_coding_block_border)) { + const TX_SIZE min_tx_size = + AOMMIN(TX_16X16, AOMMIN(tx_size, prev_tx_size)); + const int tmp_row = (mi_row | subsampling_y) % MI_SIZE_64X64; + const int tmp_col = (col | subsampling_x) % MI_SIZE_64X64; + const int shift_1 = get_index_shift(tmp_col, tmp_row, &index); + const uint64_t mask_1 = ((uint64_t)1 << shift_1); + switch (plane) { + case 0: lfm->left_y[min_tx_size].bits[index] |= mask_1; break; + case 1: lfm->left_u[min_tx_size].bits[index] |= mask_1; break; + case 2: lfm->left_v[min_tx_size].bits[index] |= mask_1; break; + default: assert(plane >= 0 && plane <= 2); return; + } + } + + // update prev info + prev_level = level; + prev_skip = skip; + prev_tx_size = tx_size; + // advance + col_in_unit += tx_size_wide_unit[tx_size]; + } + } + } +} + +void av1_build_bitmask_horz_info( + AV1_COMMON *const cm, const struct macroblockd_plane *const plane_ptr, + int plane) { + const int subsampling_x = plane_ptr->subsampling_x; + const int subsampling_y = plane_ptr->subsampling_y; + const int col_step = (MI_SIZE >> MI_SIZE_LOG2); + const int is_uv = plane > 0; + TX_SIZE tx_size = TX_16X16, prev_tx_size = TX_16X16; + uint8_t level, prev_level = 1; + int skip, prev_skip = 0; + int is_coding_block_border; + + for (int c = 0; (c << MI_SIZE_LOG2) < plane_ptr->dst.width; c += col_step) { + const int mi_col = c << subsampling_x; + const int col = mi_col % MI_SIZE_64X64; + + for (int r = 0; (r << MI_SIZE_LOG2) < plane_ptr->dst.height; + r += (tx_size_high_unit[TX_64X64] >> subsampling_y)) { + const int mi_row = r << subsampling_y; + LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row, mi_col); + + for (int r_in_unit = 0; + r_in_unit < (tx_size_high_unit[TX_64X64] >> subsampling_y);) { + const int y = (r + r_in_unit) << MI_SIZE_LOG2; + if (y >= plane_ptr->dst.height) break; + const int row = r_in_unit << subsampling_y; + int index = 0; + const int shift = get_index_shift(col, row, &index); + const uint64_t mask = ((uint64_t)1 << shift); + skip = lfm->skip.bits[index] & mask; + is_coding_block_border = lfm->is_horz_border.bits[index] & mask; + switch (plane) { + case 0: level = lfm->lfl_y_hor[row][col]; break; + case 1: level = lfm->lfl_u[row][col]; break; + case 2: level = lfm->lfl_v[row][col]; break; + default: assert(plane >= 0 && plane <= 2); return; + } + for (TX_SIZE ts = TX_4X4; ts <= TX_64X64; ++ts) { + if (is_uv && ts == TX_64X64) continue; + if (lfm->tx_size_hor[is_uv][ts].bits[index] & mask) { + tx_size = ts; + break; + } + } + if ((r + r_in_unit > 0) && (level || prev_level) && + (!prev_skip || !skip || is_coding_block_border)) { + const TX_SIZE min_tx_size = + AOMMIN(TX_16X16, AOMMIN(tx_size, prev_tx_size)); + const int tmp_row = (row | subsampling_y) % MI_SIZE_64X64; + const int tmp_col = (mi_col | subsampling_x) % MI_SIZE_64X64; + const int shift_1 = get_index_shift(tmp_col, tmp_row, &index); + const uint64_t mask_1 = ((uint64_t)1 << shift_1); + + switch (plane) { + case 0: lfm->above_y[min_tx_size].bits[index] |= mask_1; break; + case 1: lfm->above_u[min_tx_size].bits[index] |= mask_1; break; + case 2: lfm->above_v[min_tx_size].bits[index] |= mask_1; break; + default: assert(plane >= 0 && plane <= 2); return; + } + } + + // update prev info + prev_level = level; + prev_skip = skip; + prev_tx_size = tx_size; + // advance + r_in_unit += tx_size_high_unit[tx_size]; + } + } + } +} + +void av1_filter_block_plane_bitmask_vert( + AV1_COMMON *const cm, struct macroblockd_plane *const plane_ptr, int pl, + int mi_row, int mi_col) { + struct buf_2d *const dst = &plane_ptr->dst; + uint8_t *const buf0 = dst->buf; + const int ssx = plane_ptr->subsampling_x; + const int ssy = plane_ptr->subsampling_y; + const int mask_cutoff = 0xffff; + const int row_step = 1 << ssy; + const int two_row_step = 2 << ssy; + const int row_stride = dst->stride << MI_SIZE_LOG2; + const int two_row_stride = row_stride << 1; + uint64_t mask_16x16 = 0; + uint64_t mask_8x8 = 0; + uint64_t mask_4x4 = 0; + uint8_t *lfl; + uint8_t *lfl2; + LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row, mi_col); + assert(lfm); + + // 1. vertical filtering. filter two rows at a time + for (int r = 0; + ((mi_row + r) << MI_SIZE_LOG2) < cm->height && r < MI_SIZE_64X64; + r += two_row_step) { + const int row = r | ssy; + const int row_next = row + row_step; + const int col = ssx; + int index = 0; + const int shift = get_index_shift(col, row, &index); + int index_next = 0; + const int shift_next = get_index_shift(col, row_next, &index_next); + switch (pl) { + case 0: + mask_16x16 = lfm->left_y[TX_16X16].bits[index]; + mask_8x8 = lfm->left_y[TX_8X8].bits[index]; + mask_4x4 = lfm->left_y[TX_4X4].bits[index]; + lfl = &lfm->lfl_y_ver[row][col]; + lfl2 = &lfm->lfl_y_ver[row_next][col]; + break; + case 1: + mask_16x16 = lfm->left_u[TX_16X16].bits[index]; + mask_8x8 = lfm->left_u[TX_8X8].bits[index]; + mask_4x4 = lfm->left_u[TX_4X4].bits[index]; + lfl = &lfm->lfl_u[row][col]; + lfl2 = &lfm->lfl_u[row_next][col]; + break; + case 2: + mask_16x16 = lfm->left_v[TX_16X16].bits[index]; + mask_8x8 = lfm->left_v[TX_8X8].bits[index]; + mask_4x4 = lfm->left_v[TX_4X4].bits[index]; + lfl = &lfm->lfl_v[row][col]; + lfl2 = &lfm->lfl_v[row_next][col]; + break; + default: assert(pl >= 0 && pl <= 2); return; + } + uint64_t mask_16x16_0 = (mask_16x16 >> shift) & mask_cutoff; + uint64_t mask_8x8_0 = (mask_8x8 >> shift) & mask_cutoff; + uint64_t mask_4x4_0 = (mask_4x4 >> shift) & mask_cutoff; + uint64_t mask_16x16_1 = (mask_16x16 >> shift_next) & mask_cutoff; + uint64_t mask_8x8_1 = (mask_8x8 >> shift_next) & mask_cutoff; + uint64_t mask_4x4_1 = (mask_4x4 >> shift_next) & mask_cutoff; + + if (cm->seq_params.use_highbitdepth) + highbd_filter_selectively_vert_row2( + ssx, CONVERT_TO_SHORTPTR(dst->buf), dst->stride, pl, mask_16x16_0, + mask_8x8_0, mask_4x4_0, mask_16x16_1, mask_8x8_1, mask_4x4_1, + &cm->lf_info, lfl, lfl2, (int)cm->seq_params.bit_depth); + else + filter_selectively_vert_row2( + ssx, dst->buf, dst->stride, pl, mask_16x16_0, mask_8x8_0, mask_4x4_0, + mask_16x16_1, mask_8x8_1, mask_4x4_1, &cm->lf_info, lfl, lfl2); + dst->buf += two_row_stride; + } + // reset buf pointer for horizontal filtering + dst->buf = buf0; +} + +void av1_filter_block_plane_bitmask_horz( + AV1_COMMON *const cm, struct macroblockd_plane *const plane_ptr, int pl, + int mi_row, int mi_col) { + struct buf_2d *const dst = &plane_ptr->dst; + uint8_t *const buf0 = dst->buf; + const int ssx = plane_ptr->subsampling_x; + const int ssy = plane_ptr->subsampling_y; + const int mask_cutoff = 0xffff; + const int row_step = 1 << ssy; + const int row_stride = dst->stride << MI_SIZE_LOG2; + uint64_t mask_16x16 = 0; + uint64_t mask_8x8 = 0; + uint64_t mask_4x4 = 0; + uint8_t *lfl; + LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row, mi_col); + assert(lfm); + for (int r = 0; + ((mi_row + r) << MI_SIZE_LOG2) < cm->height && r < MI_SIZE_64X64; + r += row_step) { + if (mi_row + r == 0) { + dst->buf += row_stride; + continue; + } + const int row = r | ssy; + const int col = ssx; + int index = 0; + const int shift = get_index_shift(col, row, &index); + switch (pl) { + case 0: + mask_16x16 = lfm->above_y[TX_16X16].bits[index]; + mask_8x8 = lfm->above_y[TX_8X8].bits[index]; + mask_4x4 = lfm->above_y[TX_4X4].bits[index]; + lfl = &lfm->lfl_y_hor[row][col]; + break; + case 1: + mask_16x16 = lfm->above_u[TX_16X16].bits[index]; + mask_8x8 = lfm->above_u[TX_8X8].bits[index]; + mask_4x4 = lfm->above_u[TX_4X4].bits[index]; + lfl = &lfm->lfl_u[row][col]; + break; + case 2: + mask_16x16 = lfm->above_v[TX_16X16].bits[index]; + mask_8x8 = lfm->above_v[TX_8X8].bits[index]; + mask_4x4 = lfm->above_v[TX_4X4].bits[index]; + lfl = &lfm->lfl_v[row][col]; + break; + default: assert(pl >= 0 && pl <= 2); return; + } + mask_16x16 = (mask_16x16 >> shift) & mask_cutoff; + mask_8x8 = (mask_8x8 >> shift) & mask_cutoff; + mask_4x4 = (mask_4x4 >> shift) & mask_cutoff; + + if (cm->seq_params.use_highbitdepth) + highbd_filter_selectively_horiz( + CONVERT_TO_SHORTPTR(dst->buf), dst->stride, pl, ssx, mask_16x16, + mask_8x8, mask_4x4, &cm->lf_info, lfl, (int)cm->seq_params.bit_depth); + else + filter_selectively_horiz(dst->buf, dst->stride, pl, ssx, mask_16x16, + mask_8x8, mask_4x4, &cm->lf_info, lfl); + dst->buf += row_stride; + } + // reset buf pointer for next block + dst->buf = buf0; +} + +void av1_filter_block_plane_ver(AV1_COMMON *const cm, + struct macroblockd_plane *const plane_ptr, + int pl, int mi_row, int mi_col) { + struct buf_2d *const dst = &plane_ptr->dst; + int r, c; + const int ssx = plane_ptr->subsampling_x; + const int ssy = plane_ptr->subsampling_y; + const int mask_cutoff = 0xffff; + const int single_step = 1 << ssy; + const int r_step = 2 << ssy; + uint64_t mask_16x16 = 0; + uint64_t mask_8x8 = 0; + uint64_t mask_4x4 = 0; + uint8_t *lfl; + uint8_t *lfl2; + + // filter two rows at a time + for (r = 0; r < cm->seq_params.mib_size && + ((mi_row + r) << MI_SIZE_LOG2 < cm->height); + r += r_step) { + for (c = 0; c < cm->seq_params.mib_size && + ((mi_col + c) << MI_SIZE_LOG2 < cm->width); + c += MI_SIZE_64X64) { + dst->buf += ((c << MI_SIZE_LOG2) >> ssx); + LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row + r, mi_col + c); + assert(lfm); + const int row = ((mi_row + r) | ssy) % MI_SIZE_64X64; + const int col = ((mi_col + c) | ssx) % MI_SIZE_64X64; + int index = 0; + const int shift = get_index_shift(col, row, &index); + // current and next row should belong to the same mask_idx and index + // next row's shift + const int row_next = row + single_step; + int index_next = 0; + const int shift_next = get_index_shift(col, row_next, &index_next); + switch (pl) { + case 0: + mask_16x16 = lfm->left_y[TX_16X16].bits[index]; + mask_8x8 = lfm->left_y[TX_8X8].bits[index]; + mask_4x4 = lfm->left_y[TX_4X4].bits[index]; + lfl = &lfm->lfl_y_ver[row][col]; + lfl2 = &lfm->lfl_y_ver[row_next][col]; + break; + case 1: + mask_16x16 = lfm->left_u[TX_16X16].bits[index]; + mask_8x8 = lfm->left_u[TX_8X8].bits[index]; + mask_4x4 = lfm->left_u[TX_4X4].bits[index]; + lfl = &lfm->lfl_u[row][col]; + lfl2 = &lfm->lfl_u[row_next][col]; + break; + case 2: + mask_16x16 = lfm->left_v[TX_16X16].bits[index]; + mask_8x8 = lfm->left_v[TX_8X8].bits[index]; + mask_4x4 = lfm->left_v[TX_4X4].bits[index]; + lfl = &lfm->lfl_v[row][col]; + lfl2 = &lfm->lfl_v[row_next][col]; + break; + default: assert(pl >= 0 && pl <= 2); return; + } + uint64_t mask_16x16_0 = (mask_16x16 >> shift) & mask_cutoff; + uint64_t mask_8x8_0 = (mask_8x8 >> shift) & mask_cutoff; + uint64_t mask_4x4_0 = (mask_4x4 >> shift) & mask_cutoff; + uint64_t mask_16x16_1 = (mask_16x16 >> shift_next) & mask_cutoff; + uint64_t mask_8x8_1 = (mask_8x8 >> shift_next) & mask_cutoff; + uint64_t mask_4x4_1 = (mask_4x4 >> shift_next) & mask_cutoff; + + if (cm->seq_params.use_highbitdepth) + highbd_filter_selectively_vert_row2( + ssx, CONVERT_TO_SHORTPTR(dst->buf), dst->stride, pl, mask_16x16_0, + mask_8x8_0, mask_4x4_0, mask_16x16_1, mask_8x8_1, mask_4x4_1, + &cm->lf_info, lfl, lfl2, (int)cm->seq_params.bit_depth); + else + filter_selectively_vert_row2(ssx, dst->buf, dst->stride, pl, + mask_16x16_0, mask_8x8_0, mask_4x4_0, + mask_16x16_1, mask_8x8_1, mask_4x4_1, + &cm->lf_info, lfl, lfl2); + dst->buf -= ((c << MI_SIZE_LOG2) >> ssx); + } + dst->buf += 2 * MI_SIZE * dst->stride; + } +} + +void av1_filter_block_plane_hor(AV1_COMMON *const cm, + struct macroblockd_plane *const plane_ptr, + int pl, int mi_row, int mi_col) { + struct buf_2d *const dst = &plane_ptr->dst; + int r, c; + const int ssx = plane_ptr->subsampling_x; + const int ssy = plane_ptr->subsampling_y; + const int mask_cutoff = 0xffff; + const int r_step = 1 << ssy; + uint64_t mask_16x16 = 0; + uint64_t mask_8x8 = 0; + uint64_t mask_4x4 = 0; + uint8_t *lfl; + + for (r = 0; r < cm->seq_params.mib_size && + ((mi_row + r) << MI_SIZE_LOG2 < cm->height); + r += r_step) { + for (c = 0; c < cm->seq_params.mib_size && + ((mi_col + c) << MI_SIZE_LOG2 < cm->width); + c += MI_SIZE_64X64) { + if (mi_row + r == 0) continue; + + dst->buf += ((c << MI_SIZE_LOG2) >> ssx); + LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row + r, mi_col + c); + assert(lfm); + const int row = ((mi_row + r) | ssy) % MI_SIZE_64X64; + const int col = ((mi_col + c) | ssx) % MI_SIZE_64X64; + int index = 0; + const int shift = get_index_shift(col, row, &index); + switch (pl) { + case 0: + mask_16x16 = lfm->above_y[TX_16X16].bits[index]; + mask_8x8 = lfm->above_y[TX_8X8].bits[index]; + mask_4x4 = lfm->above_y[TX_4X4].bits[index]; + lfl = &lfm->lfl_y_hor[row][col]; + break; + case 1: + mask_16x16 = lfm->above_u[TX_16X16].bits[index]; + mask_8x8 = lfm->above_u[TX_8X8].bits[index]; + mask_4x4 = lfm->above_u[TX_4X4].bits[index]; + lfl = &lfm->lfl_u[row][col]; + break; + case 2: + mask_16x16 = lfm->above_v[TX_16X16].bits[index]; + mask_8x8 = lfm->above_v[TX_8X8].bits[index]; + mask_4x4 = lfm->above_v[TX_4X4].bits[index]; + lfl = &lfm->lfl_v[row][col]; + break; + default: assert(pl >= 0 && pl <= 2); return; + } + mask_16x16 = (mask_16x16 >> shift) & mask_cutoff; + mask_8x8 = (mask_8x8 >> shift) & mask_cutoff; + mask_4x4 = (mask_4x4 >> shift) & mask_cutoff; + + if (cm->seq_params.use_highbitdepth) + highbd_filter_selectively_horiz(CONVERT_TO_SHORTPTR(dst->buf), + dst->stride, pl, ssx, mask_16x16, + mask_8x8, mask_4x4, &cm->lf_info, lfl, + (int)cm->seq_params.bit_depth); + else + filter_selectively_horiz(dst->buf, dst->stride, pl, ssx, mask_16x16, + mask_8x8, mask_4x4, &cm->lf_info, lfl); + dst->buf -= ((c << MI_SIZE_LOG2) >> ssx); + } + dst->buf += MI_SIZE * dst->stride; + } +} +#endif // LOOP_FILTER_BITMASK + +static TX_SIZE get_transform_size(const MACROBLOCKD *const xd, + const MB_MODE_INFO *const mbmi, + const EDGE_DIR edge_dir, const int mi_row, + const int mi_col, const int plane, + const struct macroblockd_plane *plane_ptr) { + assert(mbmi != NULL); + if (xd && xd->lossless[mbmi->segment_id]) return TX_4X4; + + TX_SIZE tx_size = + (plane == AOM_PLANE_Y) + ? mbmi->tx_size + : av1_get_max_uv_txsize(mbmi->sb_type, plane_ptr->subsampling_x, + plane_ptr->subsampling_y); + assert(tx_size < TX_SIZES_ALL); + if ((plane == AOM_PLANE_Y) && is_inter_block(mbmi) && !mbmi->skip) { + const BLOCK_SIZE sb_type = mbmi->sb_type; + const int blk_row = mi_row & (mi_size_high[sb_type] - 1); + const int blk_col = mi_col & (mi_size_wide[sb_type] - 1); + const TX_SIZE mb_tx_size = + mbmi->inter_tx_size[av1_get_txb_size_index(sb_type, blk_row, blk_col)]; + assert(mb_tx_size < TX_SIZES_ALL); + tx_size = mb_tx_size; + } + + // since in case of chrominance or non-square transorm need to convert + // transform size into transform size in particular direction. + // for vertical edge, filter direction is horizontal, for horizontal + // edge, filter direction is vertical. + tx_size = (VERT_EDGE == edge_dir) ? txsize_horz_map[tx_size] + : txsize_vert_map[tx_size]; + return tx_size; +} + +typedef struct AV1_DEBLOCKING_PARAMETERS { + // length of the filter applied to the outer edge + uint32_t filter_length; + // deblocking limits + const uint8_t *lim; + const uint8_t *mblim; + const uint8_t *hev_thr; +} AV1_DEBLOCKING_PARAMETERS; + +// Return TX_SIZE from get_transform_size(), so it is plane and direction +// awared +static TX_SIZE set_lpf_parameters( + AV1_DEBLOCKING_PARAMETERS *const params, const ptrdiff_t mode_step, + const AV1_COMMON *const cm, const MACROBLOCKD *const xd, + const EDGE_DIR edge_dir, const uint32_t x, const uint32_t y, + const int plane, const struct macroblockd_plane *const plane_ptr) { + // reset to initial values + params->filter_length = 0; + + // no deblocking is required + const uint32_t width = plane_ptr->dst.width; + const uint32_t height = plane_ptr->dst.height; + if ((width <= x) || (height <= y)) { + // just return the smallest transform unit size + return TX_4X4; + } + + const uint32_t scale_horz = plane_ptr->subsampling_x; + const uint32_t scale_vert = plane_ptr->subsampling_y; + // for sub8x8 block, chroma prediction mode is obtained from the bottom/right + // mi structure of the co-located 8x8 luma block. so for chroma plane, mi_row + // and mi_col should map to the bottom/right mi structure, i.e, both mi_row + // and mi_col should be odd number for chroma plane. + const int mi_row = scale_vert | ((y << scale_vert) >> MI_SIZE_LOG2); + const int mi_col = scale_horz | ((x << scale_horz) >> MI_SIZE_LOG2); + MB_MODE_INFO **mi = cm->mi_grid_visible + mi_row * cm->mi_stride + mi_col; + const MB_MODE_INFO *mbmi = mi[0]; + // If current mbmi is not correctly setup, return an invalid value to stop + // filtering. One example is that if this tile is not coded, then its mbmi + // it not set up. + if (mbmi == NULL) return TX_INVALID; + + const TX_SIZE ts = + get_transform_size(xd, mi[0], edge_dir, mi_row, mi_col, plane, plane_ptr); + + { + const uint32_t coord = (VERT_EDGE == edge_dir) ? (x) : (y); + const uint32_t transform_masks = + edge_dir == VERT_EDGE ? tx_size_wide[ts] - 1 : tx_size_high[ts] - 1; + const int32_t tu_edge = (coord & transform_masks) ? (0) : (1); + + if (!tu_edge) return ts; + + // prepare outer edge parameters. deblock the edge if it's an edge of a TU + { + const uint32_t curr_level = + get_filter_level(cm, &cm->lf_info, edge_dir, plane, mbmi); + const int curr_skipped = mbmi->skip && is_inter_block(mbmi); + uint32_t level = curr_level; + if (coord) { + { + const MB_MODE_INFO *const mi_prev = *(mi - mode_step); + if (mi_prev == NULL) return TX_INVALID; + const int pv_row = + (VERT_EDGE == edge_dir) ? (mi_row) : (mi_row - (1 << scale_vert)); + const int pv_col = + (VERT_EDGE == edge_dir) ? (mi_col - (1 << scale_horz)) : (mi_col); + const TX_SIZE pv_ts = get_transform_size( + xd, mi_prev, edge_dir, pv_row, pv_col, plane, plane_ptr); + + const uint32_t pv_lvl = + get_filter_level(cm, &cm->lf_info, edge_dir, plane, mi_prev); + + const int pv_skip = mi_prev->skip && is_inter_block(mi_prev); + const BLOCK_SIZE bsize = + get_plane_block_size(mbmi->sb_type, plane_ptr->subsampling_x, + plane_ptr->subsampling_y); + const int prediction_masks = edge_dir == VERT_EDGE + ? block_size_wide[bsize] - 1 + : block_size_high[bsize] - 1; + const int32_t pu_edge = !(coord & prediction_masks); + // if the current and the previous blocks are skipped, + // deblock the edge if the edge belongs to a PU's edge only. + if ((curr_level || pv_lvl) && + (!pv_skip || !curr_skipped || pu_edge)) { + const TX_SIZE min_ts = AOMMIN(ts, pv_ts); + if (TX_4X4 >= min_ts) { + params->filter_length = 4; + } else if (TX_8X8 == min_ts) { + if (plane != 0) + params->filter_length = 6; + else + params->filter_length = 8; + } else { + params->filter_length = 14; + // No wide filtering for chroma plane + if (plane != 0) { + params->filter_length = 6; + } + } + + // update the level if the current block is skipped, + // but the previous one is not + level = (curr_level) ? (curr_level) : (pv_lvl); + } + } + } + // prepare common parameters + if (params->filter_length) { + const loop_filter_thresh *const limits = cm->lf_info.lfthr + level; + params->lim = limits->lim; + params->mblim = limits->mblim; + params->hev_thr = limits->hev_thr; + } + } + } + + return ts; +} + +void av1_filter_block_plane_vert(const AV1_COMMON *const cm, + const MACROBLOCKD *const xd, const int plane, + const MACROBLOCKD_PLANE *const plane_ptr, + const uint32_t mi_row, const uint32_t mi_col) { + const int row_step = MI_SIZE >> MI_SIZE_LOG2; + const uint32_t scale_horz = plane_ptr->subsampling_x; + const uint32_t scale_vert = plane_ptr->subsampling_y; + uint8_t *const dst_ptr = plane_ptr->dst.buf; + const int dst_stride = plane_ptr->dst.stride; + const int y_range = (MAX_MIB_SIZE >> scale_vert); + const int x_range = (MAX_MIB_SIZE >> scale_horz); + const int use_highbitdepth = cm->seq_params.use_highbitdepth; + const aom_bit_depth_t bit_depth = cm->seq_params.bit_depth; + for (int y = 0; y < y_range; y += row_step) { + uint8_t *p = dst_ptr + y * MI_SIZE * dst_stride; + for (int x = 0; x < x_range;) { + // inner loop always filter vertical edges in a MI block. If MI size + // is 8x8, it will filter the vertical edge aligned with a 8x8 block. + // If 4x4 trasnform is used, it will then filter the internal edge + // aligned with a 4x4 block + const uint32_t curr_x = ((mi_col * MI_SIZE) >> scale_horz) + x * MI_SIZE; + const uint32_t curr_y = ((mi_row * MI_SIZE) >> scale_vert) + y * MI_SIZE; + uint32_t advance_units; + TX_SIZE tx_size; + AV1_DEBLOCKING_PARAMETERS params; + memset(¶ms, 0, sizeof(params)); + + tx_size = + set_lpf_parameters(¶ms, ((ptrdiff_t)1 << scale_horz), cm, xd, + VERT_EDGE, curr_x, curr_y, plane, plane_ptr); + if (tx_size == TX_INVALID) { + params.filter_length = 0; + tx_size = TX_4X4; + } + + switch (params.filter_length) { + // apply 4-tap filtering + case 4: + if (use_highbitdepth) + aom_highbd_lpf_vertical_4(CONVERT_TO_SHORTPTR(p), dst_stride, + params.mblim, params.lim, params.hev_thr, + bit_depth); + else + aom_lpf_vertical_4(p, dst_stride, params.mblim, params.lim, + params.hev_thr); + break; + case 6: // apply 6-tap filter for chroma plane only + assert(plane != 0); + if (use_highbitdepth) + aom_highbd_lpf_vertical_6(CONVERT_TO_SHORTPTR(p), dst_stride, + params.mblim, params.lim, params.hev_thr, + bit_depth); + else + aom_lpf_vertical_6(p, dst_stride, params.mblim, params.lim, + params.hev_thr); + break; + // apply 8-tap filtering + case 8: + if (use_highbitdepth) + aom_highbd_lpf_vertical_8(CONVERT_TO_SHORTPTR(p), dst_stride, + params.mblim, params.lim, params.hev_thr, + bit_depth); + else + aom_lpf_vertical_8(p, dst_stride, params.mblim, params.lim, + params.hev_thr); + break; + // apply 14-tap filtering + case 14: + if (use_highbitdepth) + aom_highbd_lpf_vertical_14(CONVERT_TO_SHORTPTR(p), dst_stride, + params.mblim, params.lim, params.hev_thr, + bit_depth); + else + aom_lpf_vertical_14(p, dst_stride, params.mblim, params.lim, + params.hev_thr); + break; + // no filtering + default: break; + } + // advance the destination pointer + advance_units = tx_size_wide_unit[tx_size]; + x += advance_units; + p += advance_units * MI_SIZE; + } + } +} + +void av1_filter_block_plane_horz(const AV1_COMMON *const cm, + const MACROBLOCKD *const xd, const int plane, + const MACROBLOCKD_PLANE *const plane_ptr, + const uint32_t mi_row, const uint32_t mi_col) { + const int col_step = MI_SIZE >> MI_SIZE_LOG2; + const uint32_t scale_horz = plane_ptr->subsampling_x; + const uint32_t scale_vert = plane_ptr->subsampling_y; + uint8_t *const dst_ptr = plane_ptr->dst.buf; + const int dst_stride = plane_ptr->dst.stride; + const int y_range = (MAX_MIB_SIZE >> scale_vert); + const int x_range = (MAX_MIB_SIZE >> scale_horz); + const int use_highbitdepth = cm->seq_params.use_highbitdepth; + const aom_bit_depth_t bit_depth = cm->seq_params.bit_depth; + for (int x = 0; x < x_range; x += col_step) { + uint8_t *p = dst_ptr + x * MI_SIZE; + for (int y = 0; y < y_range;) { + // inner loop always filter vertical edges in a MI block. If MI size + // is 8x8, it will first filter the vertical edge aligned with a 8x8 + // block. If 4x4 trasnform is used, it will then filter the internal + // edge aligned with a 4x4 block + const uint32_t curr_x = ((mi_col * MI_SIZE) >> scale_horz) + x * MI_SIZE; + const uint32_t curr_y = ((mi_row * MI_SIZE) >> scale_vert) + y * MI_SIZE; + uint32_t advance_units; + TX_SIZE tx_size; + AV1_DEBLOCKING_PARAMETERS params; + memset(¶ms, 0, sizeof(params)); + + tx_size = + set_lpf_parameters(¶ms, (cm->mi_stride << scale_vert), cm, xd, + HORZ_EDGE, curr_x, curr_y, plane, plane_ptr); + if (tx_size == TX_INVALID) { + params.filter_length = 0; + tx_size = TX_4X4; + } + + switch (params.filter_length) { + // apply 4-tap filtering + case 4: + if (use_highbitdepth) + aom_highbd_lpf_horizontal_4(CONVERT_TO_SHORTPTR(p), dst_stride, + params.mblim, params.lim, + params.hev_thr, bit_depth); + else + aom_lpf_horizontal_4(p, dst_stride, params.mblim, params.lim, + params.hev_thr); + break; + // apply 6-tap filtering + case 6: + assert(plane != 0); + if (use_highbitdepth) + aom_highbd_lpf_horizontal_6(CONVERT_TO_SHORTPTR(p), dst_stride, + params.mblim, params.lim, + params.hev_thr, bit_depth); + else + aom_lpf_horizontal_6(p, dst_stride, params.mblim, params.lim, + params.hev_thr); + break; + // apply 8-tap filtering + case 8: + if (use_highbitdepth) + aom_highbd_lpf_horizontal_8(CONVERT_TO_SHORTPTR(p), dst_stride, + params.mblim, params.lim, + params.hev_thr, bit_depth); + else + aom_lpf_horizontal_8(p, dst_stride, params.mblim, params.lim, + params.hev_thr); + break; + // apply 14-tap filtering + case 14: + if (use_highbitdepth) + aom_highbd_lpf_horizontal_14(CONVERT_TO_SHORTPTR(p), dst_stride, + params.mblim, params.lim, + params.hev_thr, bit_depth); + else + aom_lpf_horizontal_14(p, dst_stride, params.mblim, params.lim, + params.hev_thr); + break; + // no filtering + default: break; + } + + // advance the destination pointer + advance_units = tx_size_high_unit[tx_size]; + y += advance_units; + p += advance_units * dst_stride * MI_SIZE; + } + } +} + +static void loop_filter_rows(YV12_BUFFER_CONFIG *frame_buffer, AV1_COMMON *cm, + MACROBLOCKD *xd, int start, int stop, +#if LOOP_FILTER_BITMASK + int is_decoding, +#endif + int plane_start, int plane_end) { + struct macroblockd_plane *pd = xd->plane; + const int col_start = 0; + const int col_end = cm->mi_cols; + int mi_row, mi_col; + int plane; + +#if LOOP_FILTER_BITMASK + if (is_decoding) { + for (plane = plane_start; plane < plane_end; plane++) { + if (plane == 0 && !(cm->lf.filter_level[0]) && !(cm->lf.filter_level[1])) + break; + else if (plane == 1 && !(cm->lf.filter_level_u)) + continue; + else if (plane == 2 && !(cm->lf.filter_level_v)) + continue; + + av1_setup_dst_planes(pd, cm->seq_params.sb_size, frame_buffer, 0, 0, + plane, plane + 1); + av1_build_bitmask_vert_info(cm, &pd[plane], plane); + av1_build_bitmask_horz_info(cm, &pd[plane], plane); + + // apply loop filtering which only goes through buffer once + for (mi_row = start; mi_row < stop; mi_row += MI_SIZE_64X64) { + for (mi_col = col_start; mi_col < col_end; mi_col += MI_SIZE_64X64) { + av1_setup_dst_planes(pd, MI_SIZE_64X64, frame_buffer, mi_row, mi_col, + plane, plane + 1); + av1_filter_block_plane_bitmask_vert(cm, &pd[plane], plane, mi_row, + mi_col); + if (mi_col - MI_SIZE_64X64 >= 0) { + av1_setup_dst_planes(pd, MI_SIZE_64X64, frame_buffer, mi_row, + mi_col - MI_SIZE_64X64, plane, plane + 1); + av1_filter_block_plane_bitmask_horz(cm, &pd[plane], plane, mi_row, + mi_col - MI_SIZE_64X64); + } + } + av1_setup_dst_planes(pd, MI_SIZE_64X64, frame_buffer, mi_row, + mi_col - MI_SIZE_64X64, plane, plane + 1); + av1_filter_block_plane_bitmask_horz(cm, &pd[plane], plane, mi_row, + mi_col - MI_SIZE_64X64); + } + } + return; + } +#endif + + for (plane = plane_start; plane < plane_end; plane++) { + if (plane == 0 && !(cm->lf.filter_level[0]) && !(cm->lf.filter_level[1])) + break; + else if (plane == 1 && !(cm->lf.filter_level_u)) + continue; + else if (plane == 2 && !(cm->lf.filter_level_v)) + continue; + +#if LOOP_FILTER_BITMASK + // filter all vertical edges every superblock (could be 128x128 or 64x64) + for (mi_row = start; mi_row < stop; mi_row += cm->seq_params.mib_size) { + for (mi_col = col_start; mi_col < col_end; + mi_col += cm->seq_params.mib_size) { + av1_setup_dst_planes(pd, cm->seq_params.sb_size, frame_buffer, mi_row, + mi_col, plane, plane + 1); + + av1_setup_bitmask(cm, mi_row, mi_col, plane, pd[plane].subsampling_x, + pd[plane].subsampling_y, stop, col_end); + av1_filter_block_plane_ver(cm, &pd[plane], plane, mi_row, mi_col); + } + } + + // filter all horizontal edges every superblock + for (mi_row = start; mi_row < stop; mi_row += cm->seq_params.mib_size) { + for (mi_col = col_start; mi_col < col_end; + mi_col += cm->seq_params.mib_size) { + av1_setup_dst_planes(pd, cm->seq_params.sb_size, frame_buffer, mi_row, + mi_col, plane, plane + 1); + + av1_filter_block_plane_hor(cm, &pd[plane], plane, mi_row, mi_col); + } + } +#else + if (cm->lf.combine_vert_horz_lf) { + // filter all vertical and horizontal edges in every 128x128 super block + for (mi_row = start; mi_row < stop; mi_row += MAX_MIB_SIZE) { + for (mi_col = col_start; mi_col < col_end; mi_col += MAX_MIB_SIZE) { + // filter vertical edges + av1_setup_dst_planes(pd, cm->seq_params.sb_size, frame_buffer, mi_row, + mi_col, plane, plane + 1); + av1_filter_block_plane_vert(cm, xd, plane, &pd[plane], mi_row, + mi_col); + // filter horizontal edges + if (mi_col - MAX_MIB_SIZE >= 0) { + av1_setup_dst_planes(pd, cm->seq_params.sb_size, frame_buffer, + mi_row, mi_col - MAX_MIB_SIZE, plane, + plane + 1); + av1_filter_block_plane_horz(cm, xd, plane, &pd[plane], mi_row, + mi_col - MAX_MIB_SIZE); + } + } + // filter horizontal edges + av1_setup_dst_planes(pd, cm->seq_params.sb_size, frame_buffer, mi_row, + mi_col - MAX_MIB_SIZE, plane, plane + 1); + av1_filter_block_plane_horz(cm, xd, plane, &pd[plane], mi_row, + mi_col - MAX_MIB_SIZE); + } + } else { + // filter all vertical edges in every 128x128 super block + for (mi_row = start; mi_row < stop; mi_row += MAX_MIB_SIZE) { + for (mi_col = col_start; mi_col < col_end; mi_col += MAX_MIB_SIZE) { + av1_setup_dst_planes(pd, cm->seq_params.sb_size, frame_buffer, mi_row, + mi_col, plane, plane + 1); + av1_filter_block_plane_vert(cm, xd, plane, &pd[plane], mi_row, + mi_col); + } + } + + // filter all horizontal edges in every 128x128 super block + for (mi_row = start; mi_row < stop; mi_row += MAX_MIB_SIZE) { + for (mi_col = col_start; mi_col < col_end; mi_col += MAX_MIB_SIZE) { + av1_setup_dst_planes(pd, cm->seq_params.sb_size, frame_buffer, mi_row, + mi_col, plane, plane + 1); + av1_filter_block_plane_horz(cm, xd, plane, &pd[plane], mi_row, + mi_col); + } + } + } +#endif // LOOP_FILTER_BITMASK + } +} + +void av1_loop_filter_frame(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm, + MACROBLOCKD *xd, +#if LOOP_FILTER_BITMASK + int is_decoding, +#endif + int plane_start, int plane_end, int partial_frame) { + int start_mi_row, end_mi_row, mi_rows_to_filter; + + start_mi_row = 0; + mi_rows_to_filter = cm->mi_rows; + if (partial_frame && cm->mi_rows > 8) { + start_mi_row = cm->mi_rows >> 1; + start_mi_row &= 0xfffffff8; + mi_rows_to_filter = AOMMAX(cm->mi_rows / 8, 8); + } + end_mi_row = start_mi_row + mi_rows_to_filter; + av1_loop_filter_frame_init(cm, plane_start, plane_end); + loop_filter_rows(frame, cm, xd, start_mi_row, end_mi_row, +#if LOOP_FILTER_BITMASK + is_decoding, +#endif + plane_start, plane_end); +} |