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Diffstat (limited to 'third_party/aom/av1/common/reconintra.c')
| -rw-r--r-- | third_party/aom/av1/common/reconintra.c | 1640 |
1 files changed, 1640 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/reconintra.c b/third_party/aom/av1/common/reconintra.c new file mode 100644 index 0000000000..71a52e73e5 --- /dev/null +++ b/third_party/aom/av1/common/reconintra.c @@ -0,0 +1,1640 @@ +/* + * 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 "config/av1_rtcd.h" + +#include "aom_dsp/aom_dsp_common.h" +#include "aom_mem/aom_mem.h" +#include "aom_ports/aom_once.h" +#include "aom_ports/mem.h" +#include "aom_ports/system_state.h" +#include "av1/common/reconintra.h" +#include "av1/common/onyxc_int.h" +#include "av1/common/cfl.h" + +enum { + NEED_LEFT = 1 << 1, + NEED_ABOVE = 1 << 2, + NEED_ABOVERIGHT = 1 << 3, + NEED_ABOVELEFT = 1 << 4, + NEED_BOTTOMLEFT = 1 << 5, +}; + +#define INTRA_EDGE_FILT 3 +#define INTRA_EDGE_TAPS 5 +#define MAX_UPSAMPLE_SZ 16 + +static const uint8_t extend_modes[INTRA_MODES] = { + NEED_ABOVE | NEED_LEFT, // DC + NEED_ABOVE, // V + NEED_LEFT, // H + NEED_ABOVE | NEED_ABOVERIGHT, // D45 + NEED_LEFT | NEED_ABOVE | NEED_ABOVELEFT, // D135 + NEED_LEFT | NEED_ABOVE | NEED_ABOVELEFT, // D113 + NEED_LEFT | NEED_ABOVE | NEED_ABOVELEFT, // D157 + NEED_LEFT | NEED_BOTTOMLEFT, // D203 + NEED_ABOVE | NEED_ABOVERIGHT, // D67 + NEED_LEFT | NEED_ABOVE, // SMOOTH + NEED_LEFT | NEED_ABOVE, // SMOOTH_V + NEED_LEFT | NEED_ABOVE, // SMOOTH_H + NEED_LEFT | NEED_ABOVE | NEED_ABOVELEFT, // PAETH +}; + +// Tables to store if the top-right reference pixels are available. The flags +// are represented with bits, packed into 8-bit integers. E.g., for the 32x32 +// blocks in a 128x128 superblock, the index of the "o" block is 10 (in raster +// order), so its flag is stored at the 3rd bit of the 2nd entry in the table, +// i.e. (table[10 / 8] >> (10 % 8)) & 1. +// . . . . +// . . . . +// . . o . +// . . . . +static uint8_t has_tr_4x4[128] = { + 255, 255, 255, 255, 85, 85, 85, 85, 119, 119, 119, 119, 85, 85, 85, 85, + 127, 127, 127, 127, 85, 85, 85, 85, 119, 119, 119, 119, 85, 85, 85, 85, + 255, 127, 255, 127, 85, 85, 85, 85, 119, 119, 119, 119, 85, 85, 85, 85, + 127, 127, 127, 127, 85, 85, 85, 85, 119, 119, 119, 119, 85, 85, 85, 85, + 255, 255, 255, 127, 85, 85, 85, 85, 119, 119, 119, 119, 85, 85, 85, 85, + 127, 127, 127, 127, 85, 85, 85, 85, 119, 119, 119, 119, 85, 85, 85, 85, + 255, 127, 255, 127, 85, 85, 85, 85, 119, 119, 119, 119, 85, 85, 85, 85, + 127, 127, 127, 127, 85, 85, 85, 85, 119, 119, 119, 119, 85, 85, 85, 85, +}; +static uint8_t has_tr_4x8[64] = { + 255, 255, 255, 255, 119, 119, 119, 119, 127, 127, 127, 127, 119, + 119, 119, 119, 255, 127, 255, 127, 119, 119, 119, 119, 127, 127, + 127, 127, 119, 119, 119, 119, 255, 255, 255, 127, 119, 119, 119, + 119, 127, 127, 127, 127, 119, 119, 119, 119, 255, 127, 255, 127, + 119, 119, 119, 119, 127, 127, 127, 127, 119, 119, 119, 119, +}; +static uint8_t has_tr_8x4[64] = { + 255, 255, 0, 0, 85, 85, 0, 0, 119, 119, 0, 0, 85, 85, 0, 0, + 127, 127, 0, 0, 85, 85, 0, 0, 119, 119, 0, 0, 85, 85, 0, 0, + 255, 127, 0, 0, 85, 85, 0, 0, 119, 119, 0, 0, 85, 85, 0, 0, + 127, 127, 0, 0, 85, 85, 0, 0, 119, 119, 0, 0, 85, 85, 0, 0, +}; +static uint8_t has_tr_8x8[32] = { + 255, 255, 85, 85, 119, 119, 85, 85, 127, 127, 85, 85, 119, 119, 85, 85, + 255, 127, 85, 85, 119, 119, 85, 85, 127, 127, 85, 85, 119, 119, 85, 85, +}; +static uint8_t has_tr_8x16[16] = { + 255, 255, 119, 119, 127, 127, 119, 119, + 255, 127, 119, 119, 127, 127, 119, 119, +}; +static uint8_t has_tr_16x8[16] = { + 255, 0, 85, 0, 119, 0, 85, 0, 127, 0, 85, 0, 119, 0, 85, 0, +}; +static uint8_t has_tr_16x16[8] = { + 255, 85, 119, 85, 127, 85, 119, 85, +}; +static uint8_t has_tr_16x32[4] = { 255, 119, 127, 119 }; +static uint8_t has_tr_32x16[4] = { 15, 5, 7, 5 }; +static uint8_t has_tr_32x32[2] = { 95, 87 }; +static uint8_t has_tr_32x64[1] = { 127 }; +static uint8_t has_tr_64x32[1] = { 19 }; +static uint8_t has_tr_64x64[1] = { 7 }; +static uint8_t has_tr_64x128[1] = { 3 }; +static uint8_t has_tr_128x64[1] = { 1 }; +static uint8_t has_tr_128x128[1] = { 1 }; +static uint8_t has_tr_4x16[32] = { + 255, 255, 255, 255, 127, 127, 127, 127, 255, 127, 255, + 127, 127, 127, 127, 127, 255, 255, 255, 127, 127, 127, + 127, 127, 255, 127, 255, 127, 127, 127, 127, 127, +}; +static uint8_t has_tr_16x4[32] = { + 255, 0, 0, 0, 85, 0, 0, 0, 119, 0, 0, 0, 85, 0, 0, 0, + 127, 0, 0, 0, 85, 0, 0, 0, 119, 0, 0, 0, 85, 0, 0, 0, +}; +static uint8_t has_tr_8x32[8] = { + 255, 255, 127, 127, 255, 127, 127, 127, +}; +static uint8_t has_tr_32x8[8] = { + 15, 0, 5, 0, 7, 0, 5, 0, +}; +static uint8_t has_tr_16x64[2] = { 255, 127 }; +static uint8_t has_tr_64x16[2] = { 3, 1 }; + +static const uint8_t *const has_tr_tables[BLOCK_SIZES_ALL] = { + // 4X4 + has_tr_4x4, + // 4X8, 8X4, 8X8 + has_tr_4x8, has_tr_8x4, has_tr_8x8, + // 8X16, 16X8, 16X16 + has_tr_8x16, has_tr_16x8, has_tr_16x16, + // 16X32, 32X16, 32X32 + has_tr_16x32, has_tr_32x16, has_tr_32x32, + // 32X64, 64X32, 64X64 + has_tr_32x64, has_tr_64x32, has_tr_64x64, + // 64x128, 128x64, 128x128 + has_tr_64x128, has_tr_128x64, has_tr_128x128, + // 4x16, 16x4, 8x32 + has_tr_4x16, has_tr_16x4, has_tr_8x32, + // 32x8, 16x64, 64x16 + has_tr_32x8, has_tr_16x64, has_tr_64x16 +}; + +static uint8_t has_tr_vert_8x8[32] = { + 255, 255, 0, 0, 119, 119, 0, 0, 127, 127, 0, 0, 119, 119, 0, 0, + 255, 127, 0, 0, 119, 119, 0, 0, 127, 127, 0, 0, 119, 119, 0, 0, +}; +static uint8_t has_tr_vert_16x16[8] = { + 255, 0, 119, 0, 127, 0, 119, 0, +}; +static uint8_t has_tr_vert_32x32[2] = { 15, 7 }; +static uint8_t has_tr_vert_64x64[1] = { 3 }; + +// The _vert_* tables are like the ordinary tables above, but describe the +// order we visit square blocks when doing a PARTITION_VERT_A or +// PARTITION_VERT_B. This is the same order as normal except for on the last +// split where we go vertically (TL, BL, TR, BR). We treat the rectangular block +// as a pair of squares, which means that these tables work correctly for both +// mixed vertical partition types. +// +// There are tables for each of the square sizes. Vertical rectangles (like +// BLOCK_16X32) use their respective "non-vert" table +static const uint8_t *const has_tr_vert_tables[BLOCK_SIZES] = { + // 4X4 + NULL, + // 4X8, 8X4, 8X8 + has_tr_4x8, NULL, has_tr_vert_8x8, + // 8X16, 16X8, 16X16 + has_tr_8x16, NULL, has_tr_vert_16x16, + // 16X32, 32X16, 32X32 + has_tr_16x32, NULL, has_tr_vert_32x32, + // 32X64, 64X32, 64X64 + has_tr_32x64, NULL, has_tr_vert_64x64, + // 64x128, 128x64, 128x128 + has_tr_64x128, NULL, has_tr_128x128 +}; + +static const uint8_t *get_has_tr_table(PARTITION_TYPE partition, + BLOCK_SIZE bsize) { + const uint8_t *ret = NULL; + // If this is a mixed vertical partition, look up bsize in orders_vert. + if (partition == PARTITION_VERT_A || partition == PARTITION_VERT_B) { + assert(bsize < BLOCK_SIZES); + ret = has_tr_vert_tables[bsize]; + } else { + ret = has_tr_tables[bsize]; + } + assert(ret); + return ret; +} + +static int has_top_right(const AV1_COMMON *cm, BLOCK_SIZE bsize, int mi_row, + int mi_col, int top_available, int right_available, + PARTITION_TYPE partition, TX_SIZE txsz, int row_off, + int col_off, int ss_x, int ss_y) { + if (!top_available || !right_available) return 0; + + const int bw_unit = block_size_wide[bsize] >> tx_size_wide_log2[0]; + const int plane_bw_unit = AOMMAX(bw_unit >> ss_x, 1); + const int top_right_count_unit = tx_size_wide_unit[txsz]; + + if (row_off > 0) { // Just need to check if enough pixels on the right. + if (block_size_wide[bsize] > block_size_wide[BLOCK_64X64]) { + // Special case: For 128x128 blocks, the transform unit whose + // top-right corner is at the center of the block does in fact have + // pixels available at its top-right corner. + if (row_off == mi_size_high[BLOCK_64X64] >> ss_y && + col_off + top_right_count_unit == mi_size_wide[BLOCK_64X64] >> ss_x) { + return 1; + } + const int plane_bw_unit_64 = mi_size_wide[BLOCK_64X64] >> ss_x; + const int col_off_64 = col_off % plane_bw_unit_64; + return col_off_64 + top_right_count_unit < plane_bw_unit_64; + } + return col_off + top_right_count_unit < plane_bw_unit; + } else { + // All top-right pixels are in the block above, which is already available. + if (col_off + top_right_count_unit < plane_bw_unit) return 1; + + const int bw_in_mi_log2 = mi_size_wide_log2[bsize]; + const int bh_in_mi_log2 = mi_size_high_log2[bsize]; + const int sb_mi_size = mi_size_high[cm->seq_params.sb_size]; + const int blk_row_in_sb = (mi_row & (sb_mi_size - 1)) >> bh_in_mi_log2; + const int blk_col_in_sb = (mi_col & (sb_mi_size - 1)) >> bw_in_mi_log2; + + // Top row of superblock: so top-right pixels are in the top and/or + // top-right superblocks, both of which are already available. + if (blk_row_in_sb == 0) return 1; + + // Rightmost column of superblock (and not the top row): so top-right pixels + // fall in the right superblock, which is not available yet. + if (((blk_col_in_sb + 1) << bw_in_mi_log2) >= sb_mi_size) { + return 0; + } + + // General case (neither top row nor rightmost column): check if the + // top-right block is coded before the current block. + const int this_blk_index = + ((blk_row_in_sb + 0) << (MAX_MIB_SIZE_LOG2 - bw_in_mi_log2)) + + blk_col_in_sb + 0; + const int idx1 = this_blk_index / 8; + const int idx2 = this_blk_index % 8; + const uint8_t *has_tr_table = get_has_tr_table(partition, bsize); + return (has_tr_table[idx1] >> idx2) & 1; + } +} + +// Similar to the has_tr_* tables, but store if the bottom-left reference +// pixels are available. +static uint8_t has_bl_4x4[128] = { + 84, 85, 85, 85, 16, 17, 17, 17, 84, 85, 85, 85, 0, 1, 1, 1, 84, 85, 85, + 85, 16, 17, 17, 17, 84, 85, 85, 85, 0, 0, 1, 0, 84, 85, 85, 85, 16, 17, + 17, 17, 84, 85, 85, 85, 0, 1, 1, 1, 84, 85, 85, 85, 16, 17, 17, 17, 84, + 85, 85, 85, 0, 0, 0, 0, 84, 85, 85, 85, 16, 17, 17, 17, 84, 85, 85, 85, + 0, 1, 1, 1, 84, 85, 85, 85, 16, 17, 17, 17, 84, 85, 85, 85, 0, 0, 1, + 0, 84, 85, 85, 85, 16, 17, 17, 17, 84, 85, 85, 85, 0, 1, 1, 1, 84, 85, + 85, 85, 16, 17, 17, 17, 84, 85, 85, 85, 0, 0, 0, 0, +}; +static uint8_t has_bl_4x8[64] = { + 16, 17, 17, 17, 0, 1, 1, 1, 16, 17, 17, 17, 0, 0, 1, 0, + 16, 17, 17, 17, 0, 1, 1, 1, 16, 17, 17, 17, 0, 0, 0, 0, + 16, 17, 17, 17, 0, 1, 1, 1, 16, 17, 17, 17, 0, 0, 1, 0, + 16, 17, 17, 17, 0, 1, 1, 1, 16, 17, 17, 17, 0, 0, 0, 0, +}; +static uint8_t has_bl_8x4[64] = { + 254, 255, 84, 85, 254, 255, 16, 17, 254, 255, 84, 85, 254, 255, 0, 1, + 254, 255, 84, 85, 254, 255, 16, 17, 254, 255, 84, 85, 254, 255, 0, 0, + 254, 255, 84, 85, 254, 255, 16, 17, 254, 255, 84, 85, 254, 255, 0, 1, + 254, 255, 84, 85, 254, 255, 16, 17, 254, 255, 84, 85, 254, 255, 0, 0, +}; +static uint8_t has_bl_8x8[32] = { + 84, 85, 16, 17, 84, 85, 0, 1, 84, 85, 16, 17, 84, 85, 0, 0, + 84, 85, 16, 17, 84, 85, 0, 1, 84, 85, 16, 17, 84, 85, 0, 0, +}; +static uint8_t has_bl_8x16[16] = { + 16, 17, 0, 1, 16, 17, 0, 0, 16, 17, 0, 1, 16, 17, 0, 0, +}; +static uint8_t has_bl_16x8[16] = { + 254, 84, 254, 16, 254, 84, 254, 0, 254, 84, 254, 16, 254, 84, 254, 0, +}; +static uint8_t has_bl_16x16[8] = { + 84, 16, 84, 0, 84, 16, 84, 0, +}; +static uint8_t has_bl_16x32[4] = { 16, 0, 16, 0 }; +static uint8_t has_bl_32x16[4] = { 78, 14, 78, 14 }; +static uint8_t has_bl_32x32[2] = { 4, 4 }; +static uint8_t has_bl_32x64[1] = { 0 }; +static uint8_t has_bl_64x32[1] = { 34 }; +static uint8_t has_bl_64x64[1] = { 0 }; +static uint8_t has_bl_64x128[1] = { 0 }; +static uint8_t has_bl_128x64[1] = { 0 }; +static uint8_t has_bl_128x128[1] = { 0 }; +static uint8_t has_bl_4x16[32] = { + 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, + 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, +}; +static uint8_t has_bl_16x4[32] = { + 254, 254, 254, 84, 254, 254, 254, 16, 254, 254, 254, 84, 254, 254, 254, 0, + 254, 254, 254, 84, 254, 254, 254, 16, 254, 254, 254, 84, 254, 254, 254, 0, +}; +static uint8_t has_bl_8x32[8] = { + 0, 1, 0, 0, 0, 1, 0, 0, +}; +static uint8_t has_bl_32x8[8] = { + 238, 78, 238, 14, 238, 78, 238, 14, +}; +static uint8_t has_bl_16x64[2] = { 0, 0 }; +static uint8_t has_bl_64x16[2] = { 42, 42 }; + +static const uint8_t *const has_bl_tables[BLOCK_SIZES_ALL] = { + // 4X4 + has_bl_4x4, + // 4X8, 8X4, 8X8 + has_bl_4x8, has_bl_8x4, has_bl_8x8, + // 8X16, 16X8, 16X16 + has_bl_8x16, has_bl_16x8, has_bl_16x16, + // 16X32, 32X16, 32X32 + has_bl_16x32, has_bl_32x16, has_bl_32x32, + // 32X64, 64X32, 64X64 + has_bl_32x64, has_bl_64x32, has_bl_64x64, + // 64x128, 128x64, 128x128 + has_bl_64x128, has_bl_128x64, has_bl_128x128, + // 4x16, 16x4, 8x32 + has_bl_4x16, has_bl_16x4, has_bl_8x32, + // 32x8, 16x64, 64x16 + has_bl_32x8, has_bl_16x64, has_bl_64x16 +}; + +static uint8_t has_bl_vert_8x8[32] = { + 254, 255, 16, 17, 254, 255, 0, 1, 254, 255, 16, 17, 254, 255, 0, 0, + 254, 255, 16, 17, 254, 255, 0, 1, 254, 255, 16, 17, 254, 255, 0, 0, +}; +static uint8_t has_bl_vert_16x16[8] = { + 254, 16, 254, 0, 254, 16, 254, 0, +}; +static uint8_t has_bl_vert_32x32[2] = { 14, 14 }; +static uint8_t has_bl_vert_64x64[1] = { 2 }; + +// The _vert_* tables are like the ordinary tables above, but describe the +// order we visit square blocks when doing a PARTITION_VERT_A or +// PARTITION_VERT_B. This is the same order as normal except for on the last +// split where we go vertically (TL, BL, TR, BR). We treat the rectangular block +// as a pair of squares, which means that these tables work correctly for both +// mixed vertical partition types. +// +// There are tables for each of the square sizes. Vertical rectangles (like +// BLOCK_16X32) use their respective "non-vert" table +static const uint8_t *const has_bl_vert_tables[BLOCK_SIZES] = { + // 4X4 + NULL, + // 4X8, 8X4, 8X8 + has_bl_4x8, NULL, has_bl_vert_8x8, + // 8X16, 16X8, 16X16 + has_bl_8x16, NULL, has_bl_vert_16x16, + // 16X32, 32X16, 32X32 + has_bl_16x32, NULL, has_bl_vert_32x32, + // 32X64, 64X32, 64X64 + has_bl_32x64, NULL, has_bl_vert_64x64, + // 64x128, 128x64, 128x128 + has_bl_64x128, NULL, has_bl_128x128 +}; + +static const uint8_t *get_has_bl_table(PARTITION_TYPE partition, + BLOCK_SIZE bsize) { + const uint8_t *ret = NULL; + // If this is a mixed vertical partition, look up bsize in orders_vert. + if (partition == PARTITION_VERT_A || partition == PARTITION_VERT_B) { + assert(bsize < BLOCK_SIZES); + ret = has_bl_vert_tables[bsize]; + } else { + ret = has_bl_tables[bsize]; + } + assert(ret); + return ret; +} + +static int has_bottom_left(const AV1_COMMON *cm, BLOCK_SIZE bsize, int mi_row, + int mi_col, int bottom_available, int left_available, + PARTITION_TYPE partition, TX_SIZE txsz, int row_off, + int col_off, int ss_x, int ss_y) { + if (!bottom_available || !left_available) return 0; + + // Special case for 128x* blocks, when col_off is half the block width. + // This is needed because 128x* superblocks are divided into 64x* blocks in + // raster order + if (block_size_wide[bsize] > block_size_wide[BLOCK_64X64] && col_off > 0) { + const int plane_bw_unit_64 = mi_size_wide[BLOCK_64X64] >> ss_x; + const int col_off_64 = col_off % plane_bw_unit_64; + if (col_off_64 == 0) { + // We are at the left edge of top-right or bottom-right 64x* block. + const int plane_bh_unit_64 = mi_size_high[BLOCK_64X64] >> ss_y; + const int row_off_64 = row_off % plane_bh_unit_64; + const int plane_bh_unit = + AOMMIN(mi_size_high[bsize] >> ss_y, plane_bh_unit_64); + // Check if all bottom-left pixels are in the left 64x* block (which is + // already coded). + return row_off_64 + tx_size_high_unit[txsz] < plane_bh_unit; + } + } + + if (col_off > 0) { + // Bottom-left pixels are in the bottom-left block, which is not available. + return 0; + } else { + const int bh_unit = block_size_high[bsize] >> tx_size_high_log2[0]; + const int plane_bh_unit = AOMMAX(bh_unit >> ss_y, 1); + const int bottom_left_count_unit = tx_size_high_unit[txsz]; + + // All bottom-left pixels are in the left block, which is already available. + if (row_off + bottom_left_count_unit < plane_bh_unit) return 1; + + const int bw_in_mi_log2 = mi_size_wide_log2[bsize]; + const int bh_in_mi_log2 = mi_size_high_log2[bsize]; + const int sb_mi_size = mi_size_high[cm->seq_params.sb_size]; + const int blk_row_in_sb = (mi_row & (sb_mi_size - 1)) >> bh_in_mi_log2; + const int blk_col_in_sb = (mi_col & (sb_mi_size - 1)) >> bw_in_mi_log2; + + // Leftmost column of superblock: so bottom-left pixels maybe in the left + // and/or bottom-left superblocks. But only the left superblock is + // available, so check if all required pixels fall in that superblock. + if (blk_col_in_sb == 0) { + const int blk_start_row_off = blk_row_in_sb + << (bh_in_mi_log2 + MI_SIZE_LOG2 - + tx_size_wide_log2[0]) >> + ss_y; + const int row_off_in_sb = blk_start_row_off + row_off; + const int sb_height_unit = sb_mi_size >> ss_y; + return row_off_in_sb + bottom_left_count_unit < sb_height_unit; + } + + // Bottom row of superblock (and not the leftmost column): so bottom-left + // pixels fall in the bottom superblock, which is not available yet. + if (((blk_row_in_sb + 1) << bh_in_mi_log2) >= sb_mi_size) return 0; + + // General case (neither leftmost column nor bottom row): check if the + // bottom-left block is coded before the current block. + const int this_blk_index = + ((blk_row_in_sb + 0) << (MAX_MIB_SIZE_LOG2 - bw_in_mi_log2)) + + blk_col_in_sb + 0; + const int idx1 = this_blk_index / 8; + const int idx2 = this_blk_index % 8; + const uint8_t *has_bl_table = get_has_bl_table(partition, bsize); + return (has_bl_table[idx1] >> idx2) & 1; + } +} + +typedef void (*intra_pred_fn)(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left); + +static intra_pred_fn pred[INTRA_MODES][TX_SIZES_ALL]; +static intra_pred_fn dc_pred[2][2][TX_SIZES_ALL]; + +typedef void (*intra_high_pred_fn)(uint16_t *dst, ptrdiff_t stride, + const uint16_t *above, const uint16_t *left, + int bd); +static intra_high_pred_fn pred_high[INTRA_MODES][TX_SIZES_ALL]; +static intra_high_pred_fn dc_pred_high[2][2][TX_SIZES_ALL]; + +static void init_intra_predictors_internal(void) { + assert(NELEMENTS(mode_to_angle_map) == INTRA_MODES); + +#define INIT_RECTANGULAR(p, type) \ + p[TX_4X8] = aom_##type##_predictor_4x8; \ + p[TX_8X4] = aom_##type##_predictor_8x4; \ + p[TX_8X16] = aom_##type##_predictor_8x16; \ + p[TX_16X8] = aom_##type##_predictor_16x8; \ + p[TX_16X32] = aom_##type##_predictor_16x32; \ + p[TX_32X16] = aom_##type##_predictor_32x16; \ + p[TX_32X64] = aom_##type##_predictor_32x64; \ + p[TX_64X32] = aom_##type##_predictor_64x32; \ + p[TX_4X16] = aom_##type##_predictor_4x16; \ + p[TX_16X4] = aom_##type##_predictor_16x4; \ + p[TX_8X32] = aom_##type##_predictor_8x32; \ + p[TX_32X8] = aom_##type##_predictor_32x8; \ + p[TX_16X64] = aom_##type##_predictor_16x64; \ + p[TX_64X16] = aom_##type##_predictor_64x16; + +#define INIT_NO_4X4(p, type) \ + p[TX_8X8] = aom_##type##_predictor_8x8; \ + p[TX_16X16] = aom_##type##_predictor_16x16; \ + p[TX_32X32] = aom_##type##_predictor_32x32; \ + p[TX_64X64] = aom_##type##_predictor_64x64; \ + INIT_RECTANGULAR(p, type) + +#define INIT_ALL_SIZES(p, type) \ + p[TX_4X4] = aom_##type##_predictor_4x4; \ + INIT_NO_4X4(p, type) + + INIT_ALL_SIZES(pred[V_PRED], v); + INIT_ALL_SIZES(pred[H_PRED], h); + INIT_ALL_SIZES(pred[PAETH_PRED], paeth); + INIT_ALL_SIZES(pred[SMOOTH_PRED], smooth); + INIT_ALL_SIZES(pred[SMOOTH_V_PRED], smooth_v); + INIT_ALL_SIZES(pred[SMOOTH_H_PRED], smooth_h); + INIT_ALL_SIZES(dc_pred[0][0], dc_128); + INIT_ALL_SIZES(dc_pred[0][1], dc_top); + INIT_ALL_SIZES(dc_pred[1][0], dc_left); + INIT_ALL_SIZES(dc_pred[1][1], dc); + + INIT_ALL_SIZES(pred_high[V_PRED], highbd_v); + INIT_ALL_SIZES(pred_high[H_PRED], highbd_h); + INIT_ALL_SIZES(pred_high[PAETH_PRED], highbd_paeth); + INIT_ALL_SIZES(pred_high[SMOOTH_PRED], highbd_smooth); + INIT_ALL_SIZES(pred_high[SMOOTH_V_PRED], highbd_smooth_v); + INIT_ALL_SIZES(pred_high[SMOOTH_H_PRED], highbd_smooth_h); + INIT_ALL_SIZES(dc_pred_high[0][0], highbd_dc_128); + INIT_ALL_SIZES(dc_pred_high[0][1], highbd_dc_top); + INIT_ALL_SIZES(dc_pred_high[1][0], highbd_dc_left); + INIT_ALL_SIZES(dc_pred_high[1][1], highbd_dc); +#undef intra_pred_allsizes +} + +// Directional prediction, zone 1: 0 < angle < 90 +void av1_dr_prediction_z1_c(uint8_t *dst, ptrdiff_t stride, int bw, int bh, + const uint8_t *above, const uint8_t *left, + int upsample_above, int dx, int dy) { + int r, c, x, base, shift, val; + + (void)left; + (void)dy; + assert(dy == 1); + assert(dx > 0); + + const int max_base_x = ((bw + bh) - 1) << upsample_above; + const int frac_bits = 6 - upsample_above; + const int base_inc = 1 << upsample_above; + x = dx; + for (r = 0; r < bh; ++r, dst += stride, x += dx) { + base = x >> frac_bits; + shift = ((x << upsample_above) & 0x3F) >> 1; + + if (base >= max_base_x) { + for (int i = r; i < bh; ++i) { + memset(dst, above[max_base_x], bw * sizeof(dst[0])); + dst += stride; + } + return; + } + + for (c = 0; c < bw; ++c, base += base_inc) { + if (base < max_base_x) { + val = above[base] * (32 - shift) + above[base + 1] * shift; + dst[c] = ROUND_POWER_OF_TWO(val, 5); + } else { + dst[c] = above[max_base_x]; + } + } + } +} + +// Directional prediction, zone 2: 90 < angle < 180 +void av1_dr_prediction_z2_c(uint8_t *dst, ptrdiff_t stride, int bw, int bh, + const uint8_t *above, const uint8_t *left, + int upsample_above, int upsample_left, int dx, + int dy) { + int r, c, x, y, shift1, shift2, val, base1, base2; + + assert(dx > 0); + assert(dy > 0); + + const int min_base_x = -(1 << upsample_above); + const int frac_bits_x = 6 - upsample_above; + const int frac_bits_y = 6 - upsample_left; + const int base_inc_x = 1 << upsample_above; + x = -dx; + for (r = 0; r < bh; ++r, x -= dx, dst += stride) { + base1 = x >> frac_bits_x; + y = (r << 6) - dy; + for (c = 0; c < bw; ++c, base1 += base_inc_x, y -= dy) { + if (base1 >= min_base_x) { + shift1 = ((x * (1 << upsample_above)) & 0x3F) >> 1; + val = above[base1] * (32 - shift1) + above[base1 + 1] * shift1; + val = ROUND_POWER_OF_TWO(val, 5); + } else { + base2 = y >> frac_bits_y; + assert(base2 >= -(1 << upsample_left)); + shift2 = ((y * (1 << upsample_left)) & 0x3F) >> 1; + val = left[base2] * (32 - shift2) + left[base2 + 1] * shift2; + val = ROUND_POWER_OF_TWO(val, 5); + } + dst[c] = val; + } + } +} + +// Directional prediction, zone 3: 180 < angle < 270 +void av1_dr_prediction_z3_c(uint8_t *dst, ptrdiff_t stride, int bw, int bh, + const uint8_t *above, const uint8_t *left, + int upsample_left, int dx, int dy) { + int r, c, y, base, shift, val; + + (void)above; + (void)dx; + + assert(dx == 1); + assert(dy > 0); + + const int max_base_y = (bw + bh - 1) << upsample_left; + const int frac_bits = 6 - upsample_left; + const int base_inc = 1 << upsample_left; + y = dy; + for (c = 0; c < bw; ++c, y += dy) { + base = y >> frac_bits; + shift = ((y << upsample_left) & 0x3F) >> 1; + + for (r = 0; r < bh; ++r, base += base_inc) { + if (base < max_base_y) { + val = left[base] * (32 - shift) + left[base + 1] * shift; + dst[r * stride + c] = val = ROUND_POWER_OF_TWO(val, 5); + } else { + for (; r < bh; ++r) dst[r * stride + c] = left[max_base_y]; + break; + } + } + } +} + +static void dr_predictor(uint8_t *dst, ptrdiff_t stride, TX_SIZE tx_size, + const uint8_t *above, const uint8_t *left, + int upsample_above, int upsample_left, int angle) { + const int dx = av1_get_dx(angle); + const int dy = av1_get_dy(angle); + const int bw = tx_size_wide[tx_size]; + const int bh = tx_size_high[tx_size]; + assert(angle > 0 && angle < 270); + + if (angle > 0 && angle < 90) { + av1_dr_prediction_z1(dst, stride, bw, bh, above, left, upsample_above, dx, + dy); + } else if (angle > 90 && angle < 180) { + av1_dr_prediction_z2(dst, stride, bw, bh, above, left, upsample_above, + upsample_left, dx, dy); + } else if (angle > 180 && angle < 270) { + av1_dr_prediction_z3(dst, stride, bw, bh, above, left, upsample_left, dx, + dy); + } else if (angle == 90) { + pred[V_PRED][tx_size](dst, stride, above, left); + } else if (angle == 180) { + pred[H_PRED][tx_size](dst, stride, above, left); + } +} + +// Directional prediction, zone 1: 0 < angle < 90 +void av1_highbd_dr_prediction_z1_c(uint16_t *dst, ptrdiff_t stride, int bw, + int bh, const uint16_t *above, + const uint16_t *left, int upsample_above, + int dx, int dy, int bd) { + int r, c, x, base, shift, val; + + (void)left; + (void)dy; + (void)bd; + assert(dy == 1); + assert(dx > 0); + + const int max_base_x = ((bw + bh) - 1) << upsample_above; + const int frac_bits = 6 - upsample_above; + const int base_inc = 1 << upsample_above; + x = dx; + for (r = 0; r < bh; ++r, dst += stride, x += dx) { + base = x >> frac_bits; + shift = ((x << upsample_above) & 0x3F) >> 1; + + if (base >= max_base_x) { + for (int i = r; i < bh; ++i) { + aom_memset16(dst, above[max_base_x], bw); + dst += stride; + } + return; + } + + for (c = 0; c < bw; ++c, base += base_inc) { + if (base < max_base_x) { + val = above[base] * (32 - shift) + above[base + 1] * shift; + dst[c] = ROUND_POWER_OF_TWO(val, 5); + } else { + dst[c] = above[max_base_x]; + } + } + } +} + +// Directional prediction, zone 2: 90 < angle < 180 +void av1_highbd_dr_prediction_z2_c(uint16_t *dst, ptrdiff_t stride, int bw, + int bh, const uint16_t *above, + const uint16_t *left, int upsample_above, + int upsample_left, int dx, int dy, int bd) { + int r, c, x, y, shift, val, base; + + (void)bd; + assert(dx > 0); + assert(dy > 0); + + const int min_base_x = -(1 << upsample_above); + const int frac_bits_x = 6 - upsample_above; + const int frac_bits_y = 6 - upsample_left; + for (r = 0; r < bh; ++r) { + for (c = 0; c < bw; ++c) { + y = r + 1; + x = (c << 6) - y * dx; + base = x >> frac_bits_x; + if (base >= min_base_x) { + shift = ((x * (1 << upsample_above)) & 0x3F) >> 1; + val = above[base] * (32 - shift) + above[base + 1] * shift; + val = ROUND_POWER_OF_TWO(val, 5); + } else { + x = c + 1; + y = (r << 6) - x * dy; + base = y >> frac_bits_y; + shift = ((y * (1 << upsample_left)) & 0x3F) >> 1; + val = left[base] * (32 - shift) + left[base + 1] * shift; + val = ROUND_POWER_OF_TWO(val, 5); + } + dst[c] = val; + } + dst += stride; + } +} + +// Directional prediction, zone 3: 180 < angle < 270 +void av1_highbd_dr_prediction_z3_c(uint16_t *dst, ptrdiff_t stride, int bw, + int bh, const uint16_t *above, + const uint16_t *left, int upsample_left, + int dx, int dy, int bd) { + int r, c, y, base, shift, val; + + (void)above; + (void)dx; + (void)bd; + assert(dx == 1); + assert(dy > 0); + + const int max_base_y = (bw + bh - 1) << upsample_left; + const int frac_bits = 6 - upsample_left; + const int base_inc = 1 << upsample_left; + y = dy; + for (c = 0; c < bw; ++c, y += dy) { + base = y >> frac_bits; + shift = ((y << upsample_left) & 0x3F) >> 1; + + for (r = 0; r < bh; ++r, base += base_inc) { + if (base < max_base_y) { + val = left[base] * (32 - shift) + left[base + 1] * shift; + dst[r * stride + c] = ROUND_POWER_OF_TWO(val, 5); + } else { + for (; r < bh; ++r) dst[r * stride + c] = left[max_base_y]; + break; + } + } + } +} + +static void highbd_dr_predictor(uint16_t *dst, ptrdiff_t stride, + TX_SIZE tx_size, const uint16_t *above, + const uint16_t *left, int upsample_above, + int upsample_left, int angle, int bd) { + const int dx = av1_get_dx(angle); + const int dy = av1_get_dy(angle); + const int bw = tx_size_wide[tx_size]; + const int bh = tx_size_high[tx_size]; + assert(angle > 0 && angle < 270); + + if (angle > 0 && angle < 90) { + av1_highbd_dr_prediction_z1(dst, stride, bw, bh, above, left, + upsample_above, dx, dy, bd); + } else if (angle > 90 && angle < 180) { + av1_highbd_dr_prediction_z2(dst, stride, bw, bh, above, left, + upsample_above, upsample_left, dx, dy, bd); + } else if (angle > 180 && angle < 270) { + av1_highbd_dr_prediction_z3(dst, stride, bw, bh, above, left, upsample_left, + dx, dy, bd); + } else if (angle == 90) { + pred_high[V_PRED][tx_size](dst, stride, above, left, bd); + } else if (angle == 180) { + pred_high[H_PRED][tx_size](dst, stride, above, left, bd); + } +} + +DECLARE_ALIGNED(16, const int8_t, + av1_filter_intra_taps[FILTER_INTRA_MODES][8][8]) = { + { + { -6, 10, 0, 0, 0, 12, 0, 0 }, + { -5, 2, 10, 0, 0, 9, 0, 0 }, + { -3, 1, 1, 10, 0, 7, 0, 0 }, + { -3, 1, 1, 2, 10, 5, 0, 0 }, + { -4, 6, 0, 0, 0, 2, 12, 0 }, + { -3, 2, 6, 0, 0, 2, 9, 0 }, + { -3, 2, 2, 6, 0, 2, 7, 0 }, + { -3, 1, 2, 2, 6, 3, 5, 0 }, + }, + { + { -10, 16, 0, 0, 0, 10, 0, 0 }, + { -6, 0, 16, 0, 0, 6, 0, 0 }, + { -4, 0, 0, 16, 0, 4, 0, 0 }, + { -2, 0, 0, 0, 16, 2, 0, 0 }, + { -10, 16, 0, 0, 0, 0, 10, 0 }, + { -6, 0, 16, 0, 0, 0, 6, 0 }, + { -4, 0, 0, 16, 0, 0, 4, 0 }, + { -2, 0, 0, 0, 16, 0, 2, 0 }, + }, + { + { -8, 8, 0, 0, 0, 16, 0, 0 }, + { -8, 0, 8, 0, 0, 16, 0, 0 }, + { -8, 0, 0, 8, 0, 16, 0, 0 }, + { -8, 0, 0, 0, 8, 16, 0, 0 }, + { -4, 4, 0, 0, 0, 0, 16, 0 }, + { -4, 0, 4, 0, 0, 0, 16, 0 }, + { -4, 0, 0, 4, 0, 0, 16, 0 }, + { -4, 0, 0, 0, 4, 0, 16, 0 }, + }, + { + { -2, 8, 0, 0, 0, 10, 0, 0 }, + { -1, 3, 8, 0, 0, 6, 0, 0 }, + { -1, 2, 3, 8, 0, 4, 0, 0 }, + { 0, 1, 2, 3, 8, 2, 0, 0 }, + { -1, 4, 0, 0, 0, 3, 10, 0 }, + { -1, 3, 4, 0, 0, 4, 6, 0 }, + { -1, 2, 3, 4, 0, 4, 4, 0 }, + { -1, 2, 2, 3, 4, 3, 3, 0 }, + }, + { + { -12, 14, 0, 0, 0, 14, 0, 0 }, + { -10, 0, 14, 0, 0, 12, 0, 0 }, + { -9, 0, 0, 14, 0, 11, 0, 0 }, + { -8, 0, 0, 0, 14, 10, 0, 0 }, + { -10, 12, 0, 0, 0, 0, 14, 0 }, + { -9, 1, 12, 0, 0, 0, 12, 0 }, + { -8, 0, 0, 12, 0, 1, 11, 0 }, + { -7, 0, 0, 1, 12, 1, 9, 0 }, + }, +}; + +void av1_filter_intra_predictor_c(uint8_t *dst, ptrdiff_t stride, + TX_SIZE tx_size, const uint8_t *above, + const uint8_t *left, int mode) { + int r, c; + uint8_t buffer[33][33]; + const int bw = tx_size_wide[tx_size]; + const int bh = tx_size_high[tx_size]; + + assert(bw <= 32 && bh <= 32); + + // The initialization is just for silencing Jenkins static analysis warnings + for (r = 0; r < bh + 1; ++r) + memset(buffer[r], 0, (bw + 1) * sizeof(buffer[0][0])); + + for (r = 0; r < bh; ++r) buffer[r + 1][0] = left[r]; + memcpy(buffer[0], &above[-1], (bw + 1) * sizeof(uint8_t)); + + for (r = 1; r < bh + 1; r += 2) + for (c = 1; c < bw + 1; c += 4) { + const uint8_t p0 = buffer[r - 1][c - 1]; + const uint8_t p1 = buffer[r - 1][c]; + const uint8_t p2 = buffer[r - 1][c + 1]; + const uint8_t p3 = buffer[r - 1][c + 2]; + const uint8_t p4 = buffer[r - 1][c + 3]; + const uint8_t p5 = buffer[r][c - 1]; + const uint8_t p6 = buffer[r + 1][c - 1]; + for (int k = 0; k < 8; ++k) { + int r_offset = k >> 2; + int c_offset = k & 0x03; + buffer[r + r_offset][c + c_offset] = + clip_pixel(ROUND_POWER_OF_TWO_SIGNED( + av1_filter_intra_taps[mode][k][0] * p0 + + av1_filter_intra_taps[mode][k][1] * p1 + + av1_filter_intra_taps[mode][k][2] * p2 + + av1_filter_intra_taps[mode][k][3] * p3 + + av1_filter_intra_taps[mode][k][4] * p4 + + av1_filter_intra_taps[mode][k][5] * p5 + + av1_filter_intra_taps[mode][k][6] * p6, + FILTER_INTRA_SCALE_BITS)); + } + } + + for (r = 0; r < bh; ++r) { + memcpy(dst, &buffer[r + 1][1], bw * sizeof(uint8_t)); + dst += stride; + } +} + +static void highbd_filter_intra_predictor(uint16_t *dst, ptrdiff_t stride, + TX_SIZE tx_size, + const uint16_t *above, + const uint16_t *left, int mode, + int bd) { + int r, c; + uint16_t buffer[33][33]; + const int bw = tx_size_wide[tx_size]; + const int bh = tx_size_high[tx_size]; + + assert(bw <= 32 && bh <= 32); + + // The initialization is just for silencing Jenkins static analysis warnings + for (r = 0; r < bh + 1; ++r) + memset(buffer[r], 0, (bw + 1) * sizeof(buffer[0][0])); + + for (r = 0; r < bh; ++r) buffer[r + 1][0] = left[r]; + memcpy(buffer[0], &above[-1], (bw + 1) * sizeof(buffer[0][0])); + + for (r = 1; r < bh + 1; r += 2) + for (c = 1; c < bw + 1; c += 4) { + const uint16_t p0 = buffer[r - 1][c - 1]; + const uint16_t p1 = buffer[r - 1][c]; + const uint16_t p2 = buffer[r - 1][c + 1]; + const uint16_t p3 = buffer[r - 1][c + 2]; + const uint16_t p4 = buffer[r - 1][c + 3]; + const uint16_t p5 = buffer[r][c - 1]; + const uint16_t p6 = buffer[r + 1][c - 1]; + for (int k = 0; k < 8; ++k) { + int r_offset = k >> 2; + int c_offset = k & 0x03; + buffer[r + r_offset][c + c_offset] = + clip_pixel_highbd(ROUND_POWER_OF_TWO_SIGNED( + av1_filter_intra_taps[mode][k][0] * p0 + + av1_filter_intra_taps[mode][k][1] * p1 + + av1_filter_intra_taps[mode][k][2] * p2 + + av1_filter_intra_taps[mode][k][3] * p3 + + av1_filter_intra_taps[mode][k][4] * p4 + + av1_filter_intra_taps[mode][k][5] * p5 + + av1_filter_intra_taps[mode][k][6] * p6, + FILTER_INTRA_SCALE_BITS), + bd); + } + } + + for (r = 0; r < bh; ++r) { + memcpy(dst, &buffer[r + 1][1], bw * sizeof(dst[0])); + dst += stride; + } +} + +static int is_smooth(const MB_MODE_INFO *mbmi, int plane) { + if (plane == 0) { + const PREDICTION_MODE mode = mbmi->mode; + return (mode == SMOOTH_PRED || mode == SMOOTH_V_PRED || + mode == SMOOTH_H_PRED); + } else { + // uv_mode is not set for inter blocks, so need to explicitly + // detect that case. + if (is_inter_block(mbmi)) return 0; + + const UV_PREDICTION_MODE uv_mode = mbmi->uv_mode; + return (uv_mode == UV_SMOOTH_PRED || uv_mode == UV_SMOOTH_V_PRED || + uv_mode == UV_SMOOTH_H_PRED); + } +} + +static int get_filt_type(const MACROBLOCKD *xd, int plane) { + int ab_sm, le_sm; + + if (plane == 0) { + const MB_MODE_INFO *ab = xd->above_mbmi; + const MB_MODE_INFO *le = xd->left_mbmi; + ab_sm = ab ? is_smooth(ab, plane) : 0; + le_sm = le ? is_smooth(le, plane) : 0; + } else { + const MB_MODE_INFO *ab = xd->chroma_above_mbmi; + const MB_MODE_INFO *le = xd->chroma_left_mbmi; + ab_sm = ab ? is_smooth(ab, plane) : 0; + le_sm = le ? is_smooth(le, plane) : 0; + } + + return (ab_sm || le_sm) ? 1 : 0; +} + +static int intra_edge_filter_strength(int bs0, int bs1, int delta, int type) { + const int d = abs(delta); + int strength = 0; + + const int blk_wh = bs0 + bs1; + if (type == 0) { + if (blk_wh <= 8) { + if (d >= 56) strength = 1; + } else if (blk_wh <= 12) { + if (d >= 40) strength = 1; + } else if (blk_wh <= 16) { + if (d >= 40) strength = 1; + } else if (blk_wh <= 24) { + if (d >= 8) strength = 1; + if (d >= 16) strength = 2; + if (d >= 32) strength = 3; + } else if (blk_wh <= 32) { + if (d >= 1) strength = 1; + if (d >= 4) strength = 2; + if (d >= 32) strength = 3; + } else { + if (d >= 1) strength = 3; + } + } else { + if (blk_wh <= 8) { + if (d >= 40) strength = 1; + if (d >= 64) strength = 2; + } else if (blk_wh <= 16) { + if (d >= 20) strength = 1; + if (d >= 48) strength = 2; + } else if (blk_wh <= 24) { + if (d >= 4) strength = 3; + } else { + if (d >= 1) strength = 3; + } + } + return strength; +} + +void av1_filter_intra_edge_c(uint8_t *p, int sz, int strength) { + if (!strength) return; + + const int kernel[INTRA_EDGE_FILT][INTRA_EDGE_TAPS] = { + { 0, 4, 8, 4, 0 }, { 0, 5, 6, 5, 0 }, { 2, 4, 4, 4, 2 } + }; + const int filt = strength - 1; + uint8_t edge[129]; + + memcpy(edge, p, sz * sizeof(*p)); + for (int i = 1; i < sz; i++) { + int s = 0; + for (int j = 0; j < INTRA_EDGE_TAPS; j++) { + int k = i - 2 + j; + k = (k < 0) ? 0 : k; + k = (k > sz - 1) ? sz - 1 : k; + s += edge[k] * kernel[filt][j]; + } + s = (s + 8) >> 4; + p[i] = s; + } +} + +static void filter_intra_edge_corner(uint8_t *p_above, uint8_t *p_left) { + const int kernel[3] = { 5, 6, 5 }; + + int s = (p_left[0] * kernel[0]) + (p_above[-1] * kernel[1]) + + (p_above[0] * kernel[2]); + s = (s + 8) >> 4; + p_above[-1] = s; + p_left[-1] = s; +} + +void av1_filter_intra_edge_high_c(uint16_t *p, int sz, int strength) { + if (!strength) return; + + const int kernel[INTRA_EDGE_FILT][INTRA_EDGE_TAPS] = { + { 0, 4, 8, 4, 0 }, { 0, 5, 6, 5, 0 }, { 2, 4, 4, 4, 2 } + }; + const int filt = strength - 1; + uint16_t edge[129]; + + memcpy(edge, p, sz * sizeof(*p)); + for (int i = 1; i < sz; i++) { + int s = 0; + for (int j = 0; j < INTRA_EDGE_TAPS; j++) { + int k = i - 2 + j; + k = (k < 0) ? 0 : k; + k = (k > sz - 1) ? sz - 1 : k; + s += edge[k] * kernel[filt][j]; + } + s = (s + 8) >> 4; + p[i] = s; + } +} + +static void filter_intra_edge_corner_high(uint16_t *p_above, uint16_t *p_left) { + const int kernel[3] = { 5, 6, 5 }; + + int s = (p_left[0] * kernel[0]) + (p_above[-1] * kernel[1]) + + (p_above[0] * kernel[2]); + s = (s + 8) >> 4; + p_above[-1] = s; + p_left[-1] = s; +} + +void av1_upsample_intra_edge_c(uint8_t *p, int sz) { + // interpolate half-sample positions + assert(sz <= MAX_UPSAMPLE_SZ); + + uint8_t in[MAX_UPSAMPLE_SZ + 3]; + // copy p[-1..(sz-1)] and extend first and last samples + in[0] = p[-1]; + in[1] = p[-1]; + for (int i = 0; i < sz; i++) { + in[i + 2] = p[i]; + } + in[sz + 2] = p[sz - 1]; + + // interpolate half-sample edge positions + p[-2] = in[0]; + for (int i = 0; i < sz; i++) { + int s = -in[i] + (9 * in[i + 1]) + (9 * in[i + 2]) - in[i + 3]; + s = clip_pixel((s + 8) >> 4); + p[2 * i - 1] = s; + p[2 * i] = in[i + 2]; + } +} + +void av1_upsample_intra_edge_high_c(uint16_t *p, int sz, int bd) { + // interpolate half-sample positions + assert(sz <= MAX_UPSAMPLE_SZ); + + uint16_t in[MAX_UPSAMPLE_SZ + 3]; + // copy p[-1..(sz-1)] and extend first and last samples + in[0] = p[-1]; + in[1] = p[-1]; + for (int i = 0; i < sz; i++) { + in[i + 2] = p[i]; + } + in[sz + 2] = p[sz - 1]; + + // interpolate half-sample edge positions + p[-2] = in[0]; + for (int i = 0; i < sz; i++) { + int s = -in[i] + (9 * in[i + 1]) + (9 * in[i + 2]) - in[i + 3]; + s = (s + 8) >> 4; + s = clip_pixel_highbd(s, bd); + p[2 * i - 1] = s; + p[2 * i] = in[i + 2]; + } +} + +static void build_intra_predictors_high( + const MACROBLOCKD *xd, const uint8_t *ref8, int ref_stride, uint8_t *dst8, + int dst_stride, PREDICTION_MODE mode, int angle_delta, + FILTER_INTRA_MODE filter_intra_mode, TX_SIZE tx_size, + int disable_edge_filter, int n_top_px, int n_topright_px, int n_left_px, + int n_bottomleft_px, int plane) { + int i; + uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); + uint16_t *ref = CONVERT_TO_SHORTPTR(ref8); + DECLARE_ALIGNED(16, uint16_t, left_data[MAX_TX_SIZE * 2 + 32]); + DECLARE_ALIGNED(16, uint16_t, above_data[MAX_TX_SIZE * 2 + 32]); + uint16_t *const above_row = above_data + 16; + uint16_t *const left_col = left_data + 16; + const int txwpx = tx_size_wide[tx_size]; + const int txhpx = tx_size_high[tx_size]; + int need_left = extend_modes[mode] & NEED_LEFT; + int need_above = extend_modes[mode] & NEED_ABOVE; + int need_above_left = extend_modes[mode] & NEED_ABOVELEFT; + const uint16_t *above_ref = ref - ref_stride; + const uint16_t *left_ref = ref - 1; + int p_angle = 0; + const int is_dr_mode = av1_is_directional_mode(mode); + const int use_filter_intra = filter_intra_mode != FILTER_INTRA_MODES; + int base = 128 << (xd->bd - 8); + + // The default values if ref pixels are not available: + // base-1 base-1 base-1 .. base-1 base-1 base-1 base-1 base-1 base-1 + // base+1 A B .. Y Z + // base+1 C D .. W X + // base+1 E F .. U V + // base+1 G H .. S T T T T T + + if (is_dr_mode) { + p_angle = mode_to_angle_map[mode] + angle_delta; + if (p_angle <= 90) + need_above = 1, need_left = 0, need_above_left = 1; + else if (p_angle < 180) + need_above = 1, need_left = 1, need_above_left = 1; + else + need_above = 0, need_left = 1, need_above_left = 1; + } + if (use_filter_intra) need_left = need_above = need_above_left = 1; + + assert(n_top_px >= 0); + assert(n_topright_px >= 0); + assert(n_left_px >= 0); + assert(n_bottomleft_px >= 0); + + if ((!need_above && n_left_px == 0) || (!need_left && n_top_px == 0)) { + int val; + if (need_left) { + val = (n_top_px > 0) ? above_ref[0] : base + 1; + } else { + val = (n_left_px > 0) ? left_ref[0] : base - 1; + } + for (i = 0; i < txhpx; ++i) { + aom_memset16(dst, val, txwpx); + dst += dst_stride; + } + return; + } + + // NEED_LEFT + if (need_left) { + int need_bottom = !!(extend_modes[mode] & NEED_BOTTOMLEFT); + if (use_filter_intra) need_bottom = 0; + if (is_dr_mode) need_bottom = p_angle > 180; + const int num_left_pixels_needed = txhpx + (need_bottom ? txwpx : 0); + i = 0; + if (n_left_px > 0) { + for (; i < n_left_px; i++) left_col[i] = left_ref[i * ref_stride]; + if (need_bottom && n_bottomleft_px > 0) { + assert(i == txhpx); + for (; i < txhpx + n_bottomleft_px; i++) + left_col[i] = left_ref[i * ref_stride]; + } + if (i < num_left_pixels_needed) + aom_memset16(&left_col[i], left_col[i - 1], num_left_pixels_needed - i); + } else { + if (n_top_px > 0) { + aom_memset16(left_col, above_ref[0], num_left_pixels_needed); + } else { + aom_memset16(left_col, base + 1, num_left_pixels_needed); + } + } + } + + // NEED_ABOVE + if (need_above) { + int need_right = !!(extend_modes[mode] & NEED_ABOVERIGHT); + if (use_filter_intra) need_right = 0; + if (is_dr_mode) need_right = p_angle < 90; + const int num_top_pixels_needed = txwpx + (need_right ? txhpx : 0); + if (n_top_px > 0) { + memcpy(above_row, above_ref, n_top_px * sizeof(above_ref[0])); + i = n_top_px; + if (need_right && n_topright_px > 0) { + assert(n_top_px == txwpx); + memcpy(above_row + txwpx, above_ref + txwpx, + n_topright_px * sizeof(above_ref[0])); + i += n_topright_px; + } + if (i < num_top_pixels_needed) + aom_memset16(&above_row[i], above_row[i - 1], + num_top_pixels_needed - i); + } else { + if (n_left_px > 0) { + aom_memset16(above_row, left_ref[0], num_top_pixels_needed); + } else { + aom_memset16(above_row, base - 1, num_top_pixels_needed); + } + } + } + + if (need_above_left) { + if (n_top_px > 0 && n_left_px > 0) { + above_row[-1] = above_ref[-1]; + } else if (n_top_px > 0) { + above_row[-1] = above_ref[0]; + } else if (n_left_px > 0) { + above_row[-1] = left_ref[0]; + } else { + above_row[-1] = base; + } + left_col[-1] = above_row[-1]; + } + + if (use_filter_intra) { + highbd_filter_intra_predictor(dst, dst_stride, tx_size, above_row, left_col, + filter_intra_mode, xd->bd); + return; + } + + if (is_dr_mode) { + int upsample_above = 0; + int upsample_left = 0; + if (!disable_edge_filter) { + const int need_right = p_angle < 90; + const int need_bottom = p_angle > 180; + const int filt_type = get_filt_type(xd, plane); + if (p_angle != 90 && p_angle != 180) { + const int ab_le = need_above_left ? 1 : 0; + if (need_above && need_left && (txwpx + txhpx >= 24)) { + filter_intra_edge_corner_high(above_row, left_col); + } + if (need_above && n_top_px > 0) { + const int strength = + intra_edge_filter_strength(txwpx, txhpx, p_angle - 90, filt_type); + const int n_px = n_top_px + ab_le + (need_right ? txhpx : 0); + av1_filter_intra_edge_high(above_row - ab_le, n_px, strength); + } + if (need_left && n_left_px > 0) { + const int strength = intra_edge_filter_strength( + txhpx, txwpx, p_angle - 180, filt_type); + const int n_px = n_left_px + ab_le + (need_bottom ? txwpx : 0); + av1_filter_intra_edge_high(left_col - ab_le, n_px, strength); + } + } + upsample_above = + av1_use_intra_edge_upsample(txwpx, txhpx, p_angle - 90, filt_type); + if (need_above && upsample_above) { + const int n_px = txwpx + (need_right ? txhpx : 0); + av1_upsample_intra_edge_high(above_row, n_px, xd->bd); + } + upsample_left = + av1_use_intra_edge_upsample(txhpx, txwpx, p_angle - 180, filt_type); + if (need_left && upsample_left) { + const int n_px = txhpx + (need_bottom ? txwpx : 0); + av1_upsample_intra_edge_high(left_col, n_px, xd->bd); + } + } + highbd_dr_predictor(dst, dst_stride, tx_size, above_row, left_col, + upsample_above, upsample_left, p_angle, xd->bd); + return; + } + + // predict + if (mode == DC_PRED) { + dc_pred_high[n_left_px > 0][n_top_px > 0][tx_size]( + dst, dst_stride, above_row, left_col, xd->bd); + } else { + pred_high[mode][tx_size](dst, dst_stride, above_row, left_col, xd->bd); + } +} + +static void build_intra_predictors(const MACROBLOCKD *xd, const uint8_t *ref, + int ref_stride, uint8_t *dst, int dst_stride, + PREDICTION_MODE mode, int angle_delta, + FILTER_INTRA_MODE filter_intra_mode, + TX_SIZE tx_size, int disable_edge_filter, + int n_top_px, int n_topright_px, + int n_left_px, int n_bottomleft_px, + int plane) { + int i; + const uint8_t *above_ref = ref - ref_stride; + const uint8_t *left_ref = ref - 1; + DECLARE_ALIGNED(16, uint8_t, left_data[MAX_TX_SIZE * 2 + 32]); + DECLARE_ALIGNED(16, uint8_t, above_data[MAX_TX_SIZE * 2 + 32]); + uint8_t *const above_row = above_data + 16; + uint8_t *const left_col = left_data + 16; + const int txwpx = tx_size_wide[tx_size]; + const int txhpx = tx_size_high[tx_size]; + int need_left = extend_modes[mode] & NEED_LEFT; + int need_above = extend_modes[mode] & NEED_ABOVE; + int need_above_left = extend_modes[mode] & NEED_ABOVELEFT; + int p_angle = 0; + const int is_dr_mode = av1_is_directional_mode(mode); + const int use_filter_intra = filter_intra_mode != FILTER_INTRA_MODES; + + // The default values if ref pixels are not available: + // 127 127 127 .. 127 127 127 127 127 127 + // 129 A B .. Y Z + // 129 C D .. W X + // 129 E F .. U V + // 129 G H .. S T T T T T + // .. + + if (is_dr_mode) { + p_angle = mode_to_angle_map[mode] + angle_delta; + if (p_angle <= 90) + need_above = 1, need_left = 0, need_above_left = 1; + else if (p_angle < 180) + need_above = 1, need_left = 1, need_above_left = 1; + else + need_above = 0, need_left = 1, need_above_left = 1; + } + if (use_filter_intra) need_left = need_above = need_above_left = 1; + + assert(n_top_px >= 0); + assert(n_topright_px >= 0); + assert(n_left_px >= 0); + assert(n_bottomleft_px >= 0); + + if ((!need_above && n_left_px == 0) || (!need_left && n_top_px == 0)) { + int val; + if (need_left) { + val = (n_top_px > 0) ? above_ref[0] : 129; + } else { + val = (n_left_px > 0) ? left_ref[0] : 127; + } + for (i = 0; i < txhpx; ++i) { + memset(dst, val, txwpx); + dst += dst_stride; + } + return; + } + + // NEED_LEFT + if (need_left) { + int need_bottom = !!(extend_modes[mode] & NEED_BOTTOMLEFT); + if (use_filter_intra) need_bottom = 0; + if (is_dr_mode) need_bottom = p_angle > 180; + const int num_left_pixels_needed = txhpx + (need_bottom ? txwpx : 0); + i = 0; + if (n_left_px > 0) { + for (; i < n_left_px; i++) left_col[i] = left_ref[i * ref_stride]; + if (need_bottom && n_bottomleft_px > 0) { + assert(i == txhpx); + for (; i < txhpx + n_bottomleft_px; i++) + left_col[i] = left_ref[i * ref_stride]; + } + if (i < num_left_pixels_needed) + memset(&left_col[i], left_col[i - 1], num_left_pixels_needed - i); + } else { + if (n_top_px > 0) { + memset(left_col, above_ref[0], num_left_pixels_needed); + } else { + memset(left_col, 129, num_left_pixels_needed); + } + } + } + + // NEED_ABOVE + if (need_above) { + int need_right = !!(extend_modes[mode] & NEED_ABOVERIGHT); + if (use_filter_intra) need_right = 0; + if (is_dr_mode) need_right = p_angle < 90; + const int num_top_pixels_needed = txwpx + (need_right ? txhpx : 0); + if (n_top_px > 0) { + memcpy(above_row, above_ref, n_top_px); + i = n_top_px; + if (need_right && n_topright_px > 0) { + assert(n_top_px == txwpx); + memcpy(above_row + txwpx, above_ref + txwpx, n_topright_px); + i += n_topright_px; + } + if (i < num_top_pixels_needed) + memset(&above_row[i], above_row[i - 1], num_top_pixels_needed - i); + } else { + if (n_left_px > 0) { + memset(above_row, left_ref[0], num_top_pixels_needed); + } else { + memset(above_row, 127, num_top_pixels_needed); + } + } + } + + if (need_above_left) { + if (n_top_px > 0 && n_left_px > 0) { + above_row[-1] = above_ref[-1]; + } else if (n_top_px > 0) { + above_row[-1] = above_ref[0]; + } else if (n_left_px > 0) { + above_row[-1] = left_ref[0]; + } else { + above_row[-1] = 128; + } + left_col[-1] = above_row[-1]; + } + + if (use_filter_intra) { + av1_filter_intra_predictor(dst, dst_stride, tx_size, above_row, left_col, + filter_intra_mode); + return; + } + + if (is_dr_mode) { + int upsample_above = 0; + int upsample_left = 0; + if (!disable_edge_filter) { + const int need_right = p_angle < 90; + const int need_bottom = p_angle > 180; + const int filt_type = get_filt_type(xd, plane); + if (p_angle != 90 && p_angle != 180) { + const int ab_le = need_above_left ? 1 : 0; + if (need_above && need_left && (txwpx + txhpx >= 24)) { + filter_intra_edge_corner(above_row, left_col); + } + if (need_above && n_top_px > 0) { + const int strength = + intra_edge_filter_strength(txwpx, txhpx, p_angle - 90, filt_type); + const int n_px = n_top_px + ab_le + (need_right ? txhpx : 0); + av1_filter_intra_edge(above_row - ab_le, n_px, strength); + } + if (need_left && n_left_px > 0) { + const int strength = intra_edge_filter_strength( + txhpx, txwpx, p_angle - 180, filt_type); + const int n_px = n_left_px + ab_le + (need_bottom ? txwpx : 0); + av1_filter_intra_edge(left_col - ab_le, n_px, strength); + } + } + upsample_above = + av1_use_intra_edge_upsample(txwpx, txhpx, p_angle - 90, filt_type); + if (need_above && upsample_above) { + const int n_px = txwpx + (need_right ? txhpx : 0); + av1_upsample_intra_edge(above_row, n_px); + } + upsample_left = + av1_use_intra_edge_upsample(txhpx, txwpx, p_angle - 180, filt_type); + if (need_left && upsample_left) { + const int n_px = txhpx + (need_bottom ? txwpx : 0); + av1_upsample_intra_edge(left_col, n_px); + } + } + dr_predictor(dst, dst_stride, tx_size, above_row, left_col, upsample_above, + upsample_left, p_angle); + return; + } + + // predict + if (mode == DC_PRED) { + dc_pred[n_left_px > 0][n_top_px > 0][tx_size](dst, dst_stride, above_row, + left_col); + } else { + pred[mode][tx_size](dst, dst_stride, above_row, left_col); + } +} + +void av1_predict_intra_block( + const AV1_COMMON *cm, const MACROBLOCKD *xd, int wpx, int hpx, + TX_SIZE tx_size, PREDICTION_MODE mode, int angle_delta, int use_palette, + FILTER_INTRA_MODE filter_intra_mode, const uint8_t *ref, int ref_stride, + uint8_t *dst, int dst_stride, int col_off, int row_off, int plane) { + const MB_MODE_INFO *const mbmi = xd->mi[0]; + const int txwpx = tx_size_wide[tx_size]; + const int txhpx = tx_size_high[tx_size]; + const int x = col_off << tx_size_wide_log2[0]; + const int y = row_off << tx_size_high_log2[0]; + + if (use_palette) { + int r, c; + const uint8_t *const map = xd->plane[plane != 0].color_index_map + + xd->color_index_map_offset[plane != 0]; + const uint16_t *const palette = + mbmi->palette_mode_info.palette_colors + plane * PALETTE_MAX_SIZE; + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + uint16_t *dst16 = CONVERT_TO_SHORTPTR(dst); + for (r = 0; r < txhpx; ++r) { + for (c = 0; c < txwpx; ++c) { + dst16[r * dst_stride + c] = palette[map[(r + y) * wpx + c + x]]; + } + } + } else { + for (r = 0; r < txhpx; ++r) { + for (c = 0; c < txwpx; ++c) { + dst[r * dst_stride + c] = + (uint8_t)palette[map[(r + y) * wpx + c + x]]; + } + } + } + return; + } + + BLOCK_SIZE bsize = mbmi->sb_type; + const struct macroblockd_plane *const pd = &xd->plane[plane]; + const int txw = tx_size_wide_unit[tx_size]; + const int txh = tx_size_high_unit[tx_size]; + const int have_top = row_off || (pd->subsampling_y ? xd->chroma_up_available + : xd->up_available); + const int have_left = + col_off || + (pd->subsampling_x ? xd->chroma_left_available : xd->left_available); + const int mi_row = -xd->mb_to_top_edge >> (3 + MI_SIZE_LOG2); + const int mi_col = -xd->mb_to_left_edge >> (3 + MI_SIZE_LOG2); + const int xr_chr_offset = 0; + const int yd_chr_offset = 0; + + // Distance between the right edge of this prediction block to + // the frame right edge + const int xr = (xd->mb_to_right_edge >> (3 + pd->subsampling_x)) + + (wpx - x - txwpx) - xr_chr_offset; + // Distance between the bottom edge of this prediction block to + // the frame bottom edge + const int yd = (xd->mb_to_bottom_edge >> (3 + pd->subsampling_y)) + + (hpx - y - txhpx) - yd_chr_offset; + const int right_available = + mi_col + ((col_off + txw) << pd->subsampling_x) < xd->tile.mi_col_end; + const int bottom_available = + (yd > 0) && + (mi_row + ((row_off + txh) << pd->subsampling_y) < xd->tile.mi_row_end); + + const PARTITION_TYPE partition = mbmi->partition; + + // force 4x4 chroma component block size. + bsize = scale_chroma_bsize(bsize, pd->subsampling_x, pd->subsampling_y); + + const int have_top_right = has_top_right( + cm, bsize, mi_row, mi_col, have_top, right_available, partition, tx_size, + row_off, col_off, pd->subsampling_x, pd->subsampling_y); + const int have_bottom_left = has_bottom_left( + cm, bsize, mi_row, mi_col, bottom_available, have_left, partition, + tx_size, row_off, col_off, pd->subsampling_x, pd->subsampling_y); + + const int disable_edge_filter = !cm->seq_params.enable_intra_edge_filter; + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + build_intra_predictors_high( + xd, ref, ref_stride, dst, dst_stride, mode, angle_delta, + filter_intra_mode, tx_size, disable_edge_filter, + have_top ? AOMMIN(txwpx, xr + txwpx) : 0, + have_top_right ? AOMMIN(txwpx, xr) : 0, + have_left ? AOMMIN(txhpx, yd + txhpx) : 0, + have_bottom_left ? AOMMIN(txhpx, yd) : 0, plane); + return; + } + + build_intra_predictors(xd, ref, ref_stride, dst, dst_stride, mode, + angle_delta, filter_intra_mode, tx_size, + disable_edge_filter, + have_top ? AOMMIN(txwpx, xr + txwpx) : 0, + have_top_right ? AOMMIN(txwpx, xr) : 0, + have_left ? AOMMIN(txhpx, yd + txhpx) : 0, + have_bottom_left ? AOMMIN(txhpx, yd) : 0, plane); +} + +void av1_predict_intra_block_facade(const AV1_COMMON *cm, MACROBLOCKD *xd, + int plane, int blk_col, int blk_row, + TX_SIZE tx_size) { + const MB_MODE_INFO *const mbmi = xd->mi[0]; + struct macroblockd_plane *const pd = &xd->plane[plane]; + const int dst_stride = pd->dst.stride; + uint8_t *dst = + &pd->dst.buf[(blk_row * dst_stride + blk_col) << tx_size_wide_log2[0]]; + const PREDICTION_MODE mode = + (plane == AOM_PLANE_Y) ? mbmi->mode : get_uv_mode(mbmi->uv_mode); + const int use_palette = mbmi->palette_mode_info.palette_size[plane != 0] > 0; + const FILTER_INTRA_MODE filter_intra_mode = + (plane == AOM_PLANE_Y && mbmi->filter_intra_mode_info.use_filter_intra) + ? mbmi->filter_intra_mode_info.filter_intra_mode + : FILTER_INTRA_MODES; + const int angle_delta = mbmi->angle_delta[plane != AOM_PLANE_Y] * ANGLE_STEP; + + if (plane != AOM_PLANE_Y && mbmi->uv_mode == UV_CFL_PRED) { +#if CONFIG_DEBUG + assert(is_cfl_allowed(xd)); + const BLOCK_SIZE plane_bsize = get_plane_block_size( + mbmi->sb_type, pd->subsampling_x, pd->subsampling_y); + (void)plane_bsize; + assert(plane_bsize < BLOCK_SIZES_ALL); + if (!xd->lossless[mbmi->segment_id]) { + assert(blk_col == 0); + assert(blk_row == 0); + assert(block_size_wide[plane_bsize] == tx_size_wide[tx_size]); + assert(block_size_high[plane_bsize] == tx_size_high[tx_size]); + } +#endif + CFL_CTX *const cfl = &xd->cfl; + CFL_PRED_TYPE pred_plane = get_cfl_pred_type(plane); + if (cfl->dc_pred_is_cached[pred_plane] == 0) { + av1_predict_intra_block(cm, xd, pd->width, pd->height, tx_size, mode, + angle_delta, use_palette, filter_intra_mode, dst, + dst_stride, dst, dst_stride, blk_col, blk_row, + plane); + if (cfl->use_dc_pred_cache) { + cfl_store_dc_pred(xd, dst, pred_plane, tx_size_wide[tx_size]); + cfl->dc_pred_is_cached[pred_plane] = 1; + } + } else { + cfl_load_dc_pred(xd, dst, dst_stride, tx_size, pred_plane); + } + cfl_predict_block(xd, dst, dst_stride, tx_size, plane); + return; + } + av1_predict_intra_block(cm, xd, pd->width, pd->height, tx_size, mode, + angle_delta, use_palette, filter_intra_mode, dst, + dst_stride, dst, dst_stride, blk_col, blk_row, plane); +} + +void av1_init_intra_predictors(void) { + aom_once(init_intra_predictors_internal); +} |