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aomedia / avm / refs/heads/experimental / . / av1 / common / reconintra.c
blob: 2d4d7d5b5eadf16f518d0ce34ab8eeb8351327c0 [file] [log] [blame] [edit]
/*
* 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
};
static int has_top_right(const AV1_COMMON *cm, const MACROBLOCKD *xd,
BLOCK_SIZE bsize, int mi_row, int mi_col,
int top_available, int right_available, TX_SIZE txsz,
int row_off, int col_off, int ss_x, int ss_y,
int px_to_right_edge, int *px_top_right,
int is_bsize_altered_for_chroma) {
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];
const int px_tr_common = AOMMIN(tx_size_wide[txsz], px_to_right_edge);
if (px_tr_common <= 0) return 0;
*px_top_right = px_tr_common;
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;
// Handle the top-right intra tx block of the coding block
const int sb_mi_size = mi_size_wide[cm->seq_params.sb_size];
const int mi_row_aligned =
is_bsize_altered_for_chroma
? xd->mi[0]->chroma_ref_info.mi_row_chroma_base
: mi_row;
const int mi_col_aligned =
is_bsize_altered_for_chroma
? xd->mi[0]->chroma_ref_info.mi_col_chroma_base
: mi_col;
const int tr_mask_row = (mi_row_aligned & (sb_mi_size - 1)) - 1;
const int tr_mask_col =
(mi_col_aligned & (sb_mi_size - 1)) + mi_size_wide[bsize];
if (tr_mask_row < 0) {
return 1;
} else if (tr_mask_col >= sb_mi_size) {
return 0;
} else { // Handle the general case: the top_right mi is in the same SB
const int tr_offset = tr_mask_row * xd->is_mi_coded_stride + tr_mask_col;
// As long as the first mi is available, we determine tr is available
int has_tr = xd->is_mi_coded[tr_offset];
// Calculate px_top_right: how many top-right pixels are available. If it
// is less than tx_size_wide[txsz], px_top_right will be used to
// determine the location of the last available pixel, which will be used
// for padding.
if (has_tr) {
int mi_tr = 0;
for (int i = 0; i < top_right_count_unit << ss_x; ++i) {
if ((tr_mask_col + i) >= sb_mi_size ||
!xd->is_mi_coded[tr_offset + i]) {
break;
} else {
mi_tr++;
}
}
*px_top_right = AOMMIN((mi_tr << MI_SIZE_LOG2) >> ss_x, px_tr_common);
}
return has_tr;
}
}
}
static int has_bottom_left(const AV1_COMMON *cm, const MACROBLOCKD *xd,
BLOCK_SIZE bsize, int mi_row, int mi_col,
int bottom_available, int left_available,
TX_SIZE txsz, int row_off, int col_off, int ss_x,
int ss_y, int px_to_bottom_edge, int *px_bottom_left,
int is_bsize_altered_for_chroma) {
if (!bottom_available || !left_available) return 0;
const int px_bl_common = AOMMIN(tx_size_high[txsz], px_to_bottom_edge);
if (px_bl_common <= 0) return 0;
*px_bottom_left = px_bl_common;
// 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;
// The general case: neither the leftmost column nor the bottom row. The
// bottom-left mi is in the same SB
const int sb_mi_size = mi_size_high[cm->seq_params.sb_size];
const int mi_row_aligned =
is_bsize_altered_for_chroma
? xd->mi[0]->chroma_ref_info.mi_row_chroma_base
: mi_row;
const int mi_col_aligned =
is_bsize_altered_for_chroma
? xd->mi[0]->chroma_ref_info.mi_col_chroma_base
: mi_col;
const int bl_mask_row =
(mi_row_aligned & (sb_mi_size - 1)) + mi_size_high[bsize];
const int bl_mask_col = (mi_col_aligned & (sb_mi_size - 1)) - 1;
if (bl_mask_col < 0) {
const int plane_sb_height =
block_size_high[cm->seq_params.sb_size] >> ss_y;
const int plane_bottom_row =
(((mi_row_aligned & (sb_mi_size - 1)) << MI_SIZE_LOG2) +
block_size_high[bsize]) >>
ss_y;
*px_bottom_left =
AOMMIN(plane_sb_height - plane_bottom_row, px_bl_common);
return *px_bottom_left > 0;
} else if (bl_mask_row >= sb_mi_size) {
return 0;
} else {
const int bl_offset = bl_mask_row * xd->is_mi_coded_stride + bl_mask_col;
// As long as there is one bottom-left mi available, we determine bl is
// available
int has_bl = xd->is_mi_coded[bl_offset];
// Calculate px_bottom_left: how many bottom-left pixels are available. If
// it is less than tx_size_high[txsz], px_bottom_left will be used to
// determine the location of the last available pixel, which will be used
// for padding.
if (has_bl) {
int mi_bl = 0;
for (int i = 0; i < bottom_left_count_unit << ss_y; ++i) {
if ((bl_mask_row + i) >= sb_mi_size ||
!xd->is_mi_coded[bl_offset + i * xd->is_mi_coded_stride]) {
break;
} else {
mi_bl++;
}
}
*px_bottom_left = AOMMIN((mi_bl << MI_SIZE_LOG2) >> ss_y, px_bl_common);
}
return has_bl;
}
}
}
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);
#if CONFIG_FLEX_PARTITION
#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; \
p[TX_4X32] = aom_##type##_predictor_4x32; \
p[TX_32X4] = aom_##type##_predictor_32x4; \
p[TX_8X64] = aom_##type##_predictor_8x64; \
p[TX_64X8] = aom_##type##_predictor_64x8; \
p[TX_4X64] = aom_##type##_predictor_4x64; \
p[TX_64X4] = aom_##type##_predictor_64x4;
#else
#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;
#endif // CONFIG_FLEX_PARTITION
#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) {
assert(dx > 0);
assert(dy > 0);
const int min_base_x = -(1 << upsample_above);
const int min_base_y = -(1 << upsample_left);
(void)min_base_y;
const int frac_bits_x = 6 - upsample_above;
const int frac_bits_y = 6 - upsample_left;
for (int r = 0; r < bh; ++r) {
for (int c = 0; c < bw; ++c) {
int val;
int y = r + 1;
int x = (c << 6) - y * dx;
const int base_x = x >> frac_bits_x;
if (base_x >= min_base_x) {
const int shift = ((x * (1 << upsample_above)) & 0x3F) >> 1;
val = above[base_x] * (32 - shift) + above[base_x + 1] * shift;
val = ROUND_POWER_OF_TWO(val, 5);
} else {
x = c + 1;
y = (r << 6) - x * dy;
const int base_y = y >> frac_bits_y;
#if CONFIG_DERIVED_INTRA_MODE
if (base_y < min_base_y) {
dst[c] = left[min_base_y];
continue;
}
#endif // CONFIG_DERIVED_INTRA_MODE
assert(base_y >= min_base_y);
const int shift = ((y * (1 << upsample_left)) & 0x3F) >> 1;
val = left[base_y] * (32 - shift) + left[base_y + 1] * shift;
val = ROUND_POWER_OF_TWO(val, 5);
}
dst[c] = val;
}
dst += stride;
}
}
// 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) {
#if CONFIG_DERIVED_INTRA_MODE
av1_dr_prediction_z2_c(dst, stride, bw, bh, above, left, upsample_above,
upsample_left, dx, dy);
#else
av1_dr_prediction_z2(dst, stride, bw, bh, above, left, upsample_above,
upsample_left, dx, dy);
#endif // CONFIG_DERIVED_INTRA_MODE
} 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) {
(void)bd;
assert(dx > 0);
assert(dy > 0);
const int min_base_x = -(1 << upsample_above);
const int min_base_y = -(1 << upsample_left);
(void)min_base_y;
const int frac_bits_x = 6 - upsample_above;
const int frac_bits_y = 6 - upsample_left;
for (int r = 0; r < bh; ++r) {
for (int c = 0; c < bw; ++c) {
int val;
int y = r + 1;
int x = (c << 6) - y * dx;
const int base_x = x >> frac_bits_x;
if (base_x >= min_base_x) {
const int shift = ((x * (1 << upsample_above)) & 0x3F) >> 1;
val = above[base_x] * (32 - shift) + above[base_x + 1] * shift;
val = ROUND_POWER_OF_TWO(val, 5);
} else {
x = c + 1;
y = (r << 6) - x * dy;
const int base_y = y >> frac_bits_y;
assert(base_y >= min_base_y);
const int shift = ((y * (1 << upsample_left)) & 0x3F) >> 1;
val = left[base_y] * (32 - shift) + left[base_y + 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];
}
}
#if CONFIG_ADAPT_FILTER_INTRA
#define MAX_H_THICK 4
#define MIN_H_THICK 0
#define MAX_V_THICK 4
#define MIN_V_THICK 0
#define CLIP_T(t, max, min) AOMMAX(AOMMIN((t), (max)), (min))
#define ADAPT_FILTER_INTRA_GET_SRC_VAL_0 src[(i + 1) * stride + j - 1]
#define ADAPT_FILTER_INTRA_GET_SRC_VAL_1 src[i * stride + j - 1]
#define ADAPT_FILTER_INTRA_GET_SRC_VAL_2 src[(i - 1) * stride + j - 1]
#define ADAPT_FILTER_INTRA_GET_SRC_VAL_3 src[(i - 1) * stride + j]
#define ADAPT_FILTER_INTRA_GET_SRC_VAL_4 src[(i - 1) * stride + j + 1]
#define ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(func_name, tap1, tap2, \
tap3, data_type) \
void func_name(const data_type *src, int stride, int w, int h, \
int64_t *dst_buf) { \
for (int i = 0; i < h; i++) { \
for (int j = 0; j < w; j++) { \
const int x = src[i * stride + j]; \
const int v1 = ADAPT_FILTER_INTRA_GET_SRC_VAL_##tap1; \
const int v2 = ADAPT_FILTER_INTRA_GET_SRC_VAL_##tap2; \
const int v3 = ADAPT_FILTER_INTRA_GET_SRC_VAL_##tap3; \
dst_buf[0] += v1 * v1; \
dst_buf[1] += v1 * v2; \
dst_buf[2] += v2 * v2; \
dst_buf[3] += v1 * v3; \
dst_buf[4] += v2 * v3; \
dst_buf[5] += v3 * v3; \
dst_buf[6] += v1 * x; \
dst_buf[7] += v2 * x; \
dst_buf[8] += v3 * x; \
} \
} \
}
#define ADAPT_FILTER_INTRA_DEFINE_4_TAP_ACCUM_FUNC(func_name, tap1, tap2, \
tap3, tap4, data_type) \
void func_name(const data_type *src, int stride, int w, int h, \
int64_t *dst_buf) { \
for (int i = 0; i < h; i++) { \
for (int j = 0; j < w; j++) { \
const int x = src[i * stride + j]; \
const int v1 = ADAPT_FILTER_INTRA_GET_SRC_VAL_##tap1; \
const int v2 = ADAPT_FILTER_INTRA_GET_SRC_VAL_##tap2; \
const int v3 = ADAPT_FILTER_INTRA_GET_SRC_VAL_##tap3; \
const int v4 = ADAPT_FILTER_INTRA_GET_SRC_VAL_##tap4; \
dst_buf[0] += v1 * v1; \
dst_buf[1] += v1 * v2; \
dst_buf[2] += v2 * v2; \
dst_buf[3] += v1 * v3; \
dst_buf[4] += v2 * v3; \
dst_buf[5] += v3 * v3; \
dst_buf[6] += v1 * v4; \
dst_buf[7] += v2 * v4; \
dst_buf[8] += v3 * v4; \
dst_buf[9] += v4 * v4; \
dst_buf[10] += v1 * x; \
dst_buf[11] += v2 * x; \
dst_buf[12] += v3 * x; \
dst_buf[13] += v4 * x; \
} \
} \
}
#define ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_ROW_MAJOR( \
func_name, pred_expression, data_type) \
void func_name(data_type *dst, int stride, TX_SIZE tx_size, double *filt, \
const data_type *above, const data_type *left) { \
int r, c; \
double buf[65][66]; \
const int bw = tx_size_wide[tx_size]; \
const int bh = tx_size_high[tx_size]; \
for (r = 0; r < bh; ++r) buf[r + 1][0] = (double)left[r]; \
for (c = 0; c < bw + 1; ++c) buf[0][c] = (double)above[c - 1]; \
for (r = 0; r < bh + 1; ++r) buf[r][bw + 1] = (double)above[bw]; \
for (r = 1; r < bh + 1; ++r) { \
for (c = 1; c < bw + 1; ++c) { \
buf[r][c] = (pred_expression); \
dst[(r - 1) * stride + c - 1] = \
(uint16_t)(AOMMIN(AOMMAX(buf[r][c], 0.001), 254.999) + 0.5); \
} \
} \
}
#define ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_COL_MAJOR( \
func_name, pred_expression, data_type) \
void func_name(data_type *dst, int stride, TX_SIZE tx_size, double *filt, \
const data_type *above, const data_type *left) { \
int r, c; \
double buf[66][65]; \
const int bw = tx_size_wide[tx_size]; \
const int bh = tx_size_high[tx_size]; \
for (r = 0; r < bh; ++r) buf[r + 1][0] = (double)left[r]; \
for (c = 0; c < bw + 1; ++c) buf[0][c] = (double)above[c - 1]; \
for (c = 0; c < bw + 1; ++c) buf[bh + 1][c] = (double)left[bh]; \
for (c = 1; c < bw + 1; ++c) { \
for (r = 1; r < bh + 1; ++r) { \
buf[r][c] = (pred_expression); \
dst[(r - 1) * stride + c - 1] = \
(uint16_t)(AOMMIN(AOMMAX(buf[r][c], 0.001), 254.999) + 0.5); \
} \
} \
}
// Set up functions for accumulating statistics necessary to adaptively fit
// filter coefficients for the transform unit:
typedef void (*adapt_filter_intra_accum_fn)(const uint8_t *src, int stride,
int w, int h, int64_t *dst_buf);
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_0, 1, 2, 3,
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_1, 0, 1, 3,
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_2, 1, 3, 4,
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_4_TAP_ACCUM_FUNC(adapt_filter_intra_accum_3, 0, 1, 2,
3, uint8_t)
ADAPT_FILTER_INTRA_DEFINE_4_TAP_ACCUM_FUNC(adapt_filter_intra_accum_4, 1, 2, 3,
4, uint8_t)
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_5, 0, 2, 3,
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_6, 1, 2, 4,
uint8_t)
static const adapt_filter_intra_accum_fn
adapt_filter_intra_accum_fns[ADAPT_FILTER_INTRA_MODES] = {
adapt_filter_intra_accum_0, adapt_filter_intra_accum_1,
adapt_filter_intra_accum_2, adapt_filter_intra_accum_3,
adapt_filter_intra_accum_4, adapt_filter_intra_accum_5,
adapt_filter_intra_accum_6
};
typedef void (*adapt_filter_intra_accum_fn_hbd)(const uint16_t *src, int stride,
int w, int h, int64_t *dst_buf);
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_0_hbd, 1, 2,
3, uint16_t)
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_1_hbd, 0, 1,
3, uint16_t)
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_2_hbd, 1, 3,
4, uint16_t)
ADAPT_FILTER_INTRA_DEFINE_4_TAP_ACCUM_FUNC(adapt_filter_intra_accum_3_hbd, 0, 1,
2, 3, uint16_t)
ADAPT_FILTER_INTRA_DEFINE_4_TAP_ACCUM_FUNC(adapt_filter_intra_accum_4_hbd, 1, 2,
3, 4, uint16_t)
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_5_hbd, 0, 2,
3, uint16_t)
ADAPT_FILTER_INTRA_DEFINE_3_TAP_ACCUM_FUNC(adapt_filter_intra_accum_6_hbd, 1, 2,
4, uint16_t)
static const adapt_filter_intra_accum_fn_hbd
adapt_filter_intra_accum_fns_hbd[ADAPT_FILTER_INTRA_MODES] = {
adapt_filter_intra_accum_0_hbd, adapt_filter_intra_accum_1_hbd,
adapt_filter_intra_accum_2_hbd, adapt_filter_intra_accum_3_hbd,
adapt_filter_intra_accum_4_hbd, adapt_filter_intra_accum_5_hbd,
adapt_filter_intra_accum_6_hbd
};
// Set up functions for performing prediction given the fit filter coefficients.
// Whenever coefficent for the bottom-left pixel is non-zero, we are forced to
// do the prediction in the column-major order.
typedef void (*adapt_filter_intra_pred_fn)(uint8_t *dst, int stride,
TX_SIZE tx_size, double *filt,
const uint8_t *above,
const uint8_t *left);
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_ROW_MAJOR(adapt_filter_intra_pred_0,
(filt[0] * buf[r][c - 1] +
filt[1] * buf[r - 1][c - 1] +
filt[2] * buf[r - 1][c]),
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_COL_MAJOR(adapt_filter_intra_pred_1,
(filt[0] * buf[r + 1][c - 1] +
filt[1] * buf[r][c - 1] +
filt[2] * buf[r - 1][c]),
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_ROW_MAJOR(adapt_filter_intra_pred_2,
(filt[0] * buf[r][c - 1] +
filt[1] * buf[r - 1][c] +
filt[2] * buf[r - 1][c + 1]),
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_COL_MAJOR(adapt_filter_intra_pred_3,
(filt[0] * buf[r + 1][c - 1] +
filt[1] * buf[r][c - 1] +
filt[2] * buf[r - 1][c - 1] +
filt[3] * buf[r - 1][c]),
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_ROW_MAJOR(adapt_filter_intra_pred_4,
(filt[0] * buf[r][c - 1] +
filt[1] * buf[r - 1][c - 1] +
filt[2] * buf[r - 1][c] +
filt[3] * buf[r - 1][c + 1]),
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_COL_MAJOR(adapt_filter_intra_pred_5,
(filt[0] * buf[r + 1][c - 1] +
filt[1] * buf[r - 1][c - 1] +
filt[2] * buf[r - 1][c]),
uint8_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_ROW_MAJOR(adapt_filter_intra_pred_6,
(filt[0] * buf[r][c - 1] +
filt[1] * buf[r - 1][c - 1] +
filt[2] * buf[r - 1][c + 1]),
uint8_t)
static const adapt_filter_intra_pred_fn
adapt_filter_intra_pred_fns[ADAPT_FILTER_INTRA_MODES] = {
adapt_filter_intra_pred_0, adapt_filter_intra_pred_1,
adapt_filter_intra_pred_2, adapt_filter_intra_pred_3,
adapt_filter_intra_pred_4, adapt_filter_intra_pred_5,
adapt_filter_intra_pred_6
};
typedef void (*adapt_filter_intra_pred_fn_hbd)(uint16_t *dst, int stride,
TX_SIZE tx_size, double *filt,
const uint16_t *above,
const uint16_t *left);
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_ROW_MAJOR(adapt_filter_intra_pred_0_hbd,
(filt[0] * buf[r][c - 1] +
filt[1] * buf[r - 1][c - 1] +
filt[2] * buf[r - 1][c]),
uint16_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_COL_MAJOR(adapt_filter_intra_pred_1_hbd,
(filt[0] * buf[r + 1][c - 1] +
filt[1] * buf[r][c - 1] +
filt[2] * buf[r - 1][c]),
uint16_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_ROW_MAJOR(adapt_filter_intra_pred_2_hbd,
(filt[0] * buf[r][c - 1] +
filt[1] * buf[r - 1][c] +
filt[2] * buf[r - 1][c + 1]),
uint16_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_COL_MAJOR(adapt_filter_intra_pred_3_hbd,
(filt[0] * buf[r + 1][c - 1] +
filt[1] * buf[r][c - 1] +
filt[2] * buf[r - 1][c - 1] +
filt[3] * buf[r - 1][c]),
uint16_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_ROW_MAJOR(adapt_filter_intra_pred_4_hbd,
(filt[0] * buf[r][c - 1] +
filt[1] * buf[r - 1][c - 1] +
filt[2] * buf[r - 1][c] +
filt[3] * buf[r - 1][c + 1]),
uint16_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_COL_MAJOR(adapt_filter_intra_pred_5_hbd,
(filt[0] * buf[r + 1][c - 1] +
filt[1] * buf[r - 1][c - 1] +
filt[2] * buf[r - 1][c]),
uint16_t)
ADAPT_FILTER_INTRA_DEFINE_PRED_FUNC_ROW_MAJOR(adapt_filter_intra_pred_6_hbd,
(filt[0] * buf[r][c - 1] +
filt[1] * buf[r - 1][c - 1] +
filt[2] * buf[r - 1][c + 1]),
uint16_t)
static const adapt_filter_intra_pred_fn_hbd
adapt_filter_intra_pred_fns_hbd[ADAPT_FILTER_INTRA_MODES] = {
adapt_filter_intra_pred_0_hbd, adapt_filter_intra_pred_1_hbd,
adapt_filter_intra_pred_2_hbd, adapt_filter_intra_pred_3_hbd,
adapt_filter_intra_pred_4_hbd, adapt_filter_intra_pred_5_hbd,
adapt_filter_intra_pred_6_hbd
};
// Define the parameters that describe the shape of the region used to fit the
// filter, i.e. the training region (separately for each transform size and
// adaptive filter intra mode)
static const int
adapt_filter_intra_thickness_hor[TX_SIZES_ALL][ADAPT_FILTER_INTRA_MODES] = {
{ CLIP_T(2, MAX_H_THICK, MIN_H_THICK),
CLIP_T(2, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK) }, // TX_4X4
{ CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(2, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK),
CLIP_T(8, MAX_H_THICK, MIN_H_THICK) }, // TX_8X8
{ CLIP_T(12, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(10, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK) }, // TX_16X16
{ CLIP_T(16, MAX_H_THICK, MIN_H_THICK),
CLIP_T(14, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK),
CLIP_T(15, MAX_H_THICK, MIN_H_THICK),
CLIP_T(19, MAX_H_THICK, MIN_H_THICK),
CLIP_T(17, MAX_H_THICK, MIN_H_THICK),
CLIP_T(16, MAX_H_THICK, MIN_H_THICK) }, // TX_32X32
{ CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK) }, // TX_64X64
{ CLIP_T(3, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(1, MAX_H_THICK, MIN_H_THICK),
CLIP_T(2, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK) }, // TX_4X8
{ CLIP_T(3, MAX_H_THICK, MIN_H_THICK),
CLIP_T(4, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(2, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK) }, // TX_8X4
{ CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK),
CLIP_T(4, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK) }, // TX_8X16
{ CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(11, MAX_H_THICK, MIN_H_THICK),
CLIP_T(10, MAX_H_THICK, MIN_H_THICK),
CLIP_T(10, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK) }, // TX_16X8
{ CLIP_T(12, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(11, MAX_H_THICK, MIN_H_THICK),
CLIP_T(11, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK) }, // TX_16X32
{ CLIP_T(19, MAX_H_THICK, MIN_H_THICK),
CLIP_T(14, MAX_H_THICK, MIN_H_THICK),
CLIP_T(19, MAX_H_THICK, MIN_H_THICK),
CLIP_T(15, MAX_H_THICK, MIN_H_THICK),
CLIP_T(14, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK) }, // TX_32X16
{ CLIP_T(17, MAX_H_THICK, MIN_H_THICK),
CLIP_T(17, MAX_H_THICK, MIN_H_THICK),
CLIP_T(17, MAX_H_THICK, MIN_H_THICK),
CLIP_T(17, MAX_H_THICK, MIN_H_THICK),
CLIP_T(17, MAX_H_THICK, MIN_H_THICK),
CLIP_T(17, MAX_H_THICK, MIN_H_THICK),
CLIP_T(17, MAX_H_THICK, MIN_H_THICK) }, // TX_32X64
{ CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK) }, // TX_64X32
{ CLIP_T(2, MAX_H_THICK, MIN_H_THICK),
CLIP_T(3, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(4, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK) }, // TX_4X16
{ CLIP_T(11, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(11, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK) }, // TX_16X4
{ CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(3, MAX_H_THICK, MIN_H_THICK),
CLIP_T(8, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(4, MAX_H_THICK, MIN_H_THICK) }, // TX_8X32
{ CLIP_T(16, MAX_H_THICK, MIN_H_THICK),
CLIP_T(20, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK),
CLIP_T(18, MAX_H_THICK, MIN_H_THICK),
CLIP_T(16, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK),
CLIP_T(20, MAX_H_THICK, MIN_H_THICK) }, // TX_32X8
{ CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK) }, // TX_16X64
{ CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK),
CLIP_T(33, MAX_H_THICK, MIN_H_THICK) }, // TX_64X16
#if CONFIG_FLEX_PARTITION
// TODO(huisu): Correct these
{ CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK),
CLIP_T(4, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK) }, // TX_4X32
{ CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(11, MAX_H_THICK, MIN_H_THICK),
CLIP_T(10, MAX_H_THICK, MIN_H_THICK),
CLIP_T(10, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK) }, // TX_32X4
{ CLIP_T(12, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(6, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(11, MAX_H_THICK, MIN_H_THICK),
CLIP_T(11, MAX_H_THICK, MIN_H_THICK),
CLIP_T(7, MAX_H_THICK, MIN_H_THICK) }, // TX_8X64
{ CLIP_T(19, MAX_H_THICK, MIN_H_THICK),
CLIP_T(14, MAX_H_THICK, MIN_H_THICK),
CLIP_T(19, MAX_H_THICK, MIN_H_THICK),
CLIP_T(15, MAX_H_THICK, MIN_H_THICK),
CLIP_T(14, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK) }, // TX_64X8
{ CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(9, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(3, MAX_H_THICK, MIN_H_THICK),
CLIP_T(8, MAX_H_THICK, MIN_H_THICK),
CLIP_T(5, MAX_H_THICK, MIN_H_THICK),
CLIP_T(4, MAX_H_THICK, MIN_H_THICK) }, // TX_4X64
{ CLIP_T(16, MAX_H_THICK, MIN_H_THICK),
CLIP_T(20, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK),
CLIP_T(18, MAX_H_THICK, MIN_H_THICK),
CLIP_T(16, MAX_H_THICK, MIN_H_THICK),
CLIP_T(13, MAX_H_THICK, MIN_H_THICK),
CLIP_T(20, MAX_H_THICK, MIN_H_THICK) }, // TX_64X4
#endif // CONFIG_FLEX_PARTITION
};
static const int
adapt_filter_intra_thickness_ver[TX_SIZES_ALL][ADAPT_FILTER_INTRA_MODES] = {
{ CLIP_T(4, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(2, MAX_V_THICK, MIN_V_THICK),
CLIP_T(4, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK) }, // TX_4X4
{ CLIP_T(3, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK) }, // TX_8X8
{ CLIP_T(11, MAX_V_THICK, MIN_V_THICK),
CLIP_T(10, MAX_V_THICK, MIN_V_THICK),
CLIP_T(12, MAX_V_THICK, MIN_V_THICK),
CLIP_T(10, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK) }, // TX_16X16
{ CLIP_T(13, MAX_V_THICK, MIN_V_THICK),
CLIP_T(16, MAX_V_THICK, MIN_V_THICK),
CLIP_T(13, MAX_V_THICK, MIN_V_THICK),
CLIP_T(14, MAX_V_THICK, MIN_V_THICK),
CLIP_T(13, MAX_V_THICK, MIN_V_THICK),
CLIP_T(16, MAX_V_THICK, MIN_V_THICK),
CLIP_T(13, MAX_V_THICK, MIN_V_THICK) }, // TX_32X32
{ CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK) }, // TX_64X64
{ CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(3, MAX_V_THICK, MIN_V_THICK),
CLIP_T(3, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK) }, // TX_4X8
{ CLIP_T(3, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(2, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK) }, // TX_8X4
{ CLIP_T(11, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(11, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK) }, // TX_8X16
{ CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(3, MAX_V_THICK, MIN_V_THICK) }, // TX_16X8
{ CLIP_T(14, MAX_V_THICK, MIN_V_THICK),
CLIP_T(15, MAX_V_THICK, MIN_V_THICK),
CLIP_T(20, MAX_V_THICK, MIN_V_THICK),
CLIP_T(19, MAX_V_THICK, MIN_V_THICK),
CLIP_T(14, MAX_V_THICK, MIN_V_THICK),
CLIP_T(14, MAX_V_THICK, MIN_V_THICK),
CLIP_T(13, MAX_V_THICK, MIN_V_THICK) }, // TX_16X32
{ CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(12, MAX_V_THICK, MIN_V_THICK),
CLIP_T(11, MAX_V_THICK, MIN_V_THICK) }, // TX_32X16
{ CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK) }, // TX_32X64
{ CLIP_T(17, MAX_V_THICK, MIN_V_THICK),
CLIP_T(17, MAX_V_THICK, MIN_V_THICK),
CLIP_T(17, MAX_V_THICK, MIN_V_THICK),
CLIP_T(17, MAX_V_THICK, MIN_V_THICK),
CLIP_T(17, MAX_V_THICK, MIN_V_THICK),
CLIP_T(17, MAX_V_THICK, MIN_V_THICK),
CLIP_T(17, MAX_V_THICK, MIN_V_THICK) }, // TX_64X32
{ CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(11, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(10, MAX_V_THICK, MIN_V_THICK),
CLIP_T(11, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK) }, // TX_4X16
{ CLIP_T(2, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(1, MAX_V_THICK, MIN_V_THICK),
CLIP_T(4, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK) }, // TX_16X4
{ CLIP_T(13, MAX_V_THICK, MIN_V_THICK),
CLIP_T(13, MAX_V_THICK, MIN_V_THICK),
CLIP_T(19, MAX_V_THICK, MIN_V_THICK),
CLIP_T(15, MAX_V_THICK, MIN_V_THICK),
CLIP_T(13, MAX_V_THICK, MIN_V_THICK),
CLIP_T(15, MAX_V_THICK, MIN_V_THICK),
CLIP_T(17, MAX_V_THICK, MIN_V_THICK) }, // TX_8X32
{ CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(4, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(3, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK) }, // TX_32X8
{ CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK),
CLIP_T(33, MAX_V_THICK, MIN_V_THICK) }, // TX_16X64
{ CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK) }, // TX_64X16
#if CONFIG_FLEX_PARTITION
// TODO(huisu): Correct these
{ CLIP_T(11, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(11, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK) }, // TX_4X32
{ CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(3, MAX_V_THICK, MIN_V_THICK) }, // TX_32X4
{ CLIP_T(14, MAX_V_THICK, MIN_V_THICK),
CLIP_T(15, MAX_V_THICK, MIN_V_THICK),
CLIP_T(20, MAX_V_THICK, MIN_V_THICK),
CLIP_T(19, MAX_V_THICK, MIN_V_THICK),
CLIP_T(14, MAX_V_THICK, MIN_V_THICK),
CLIP_T(14, MAX_V_THICK, MIN_V_THICK),
CLIP_T(13, MAX_V_THICK, MIN_V_THICK) }, // TX_8X64
{ CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(7, MAX_V_THICK, MIN_V_THICK),
CLIP_T(8, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(12, MAX_V_THICK, MIN_V_THICK),
CLIP_T(11, MAX_V_THICK, MIN_V_THICK) }, // TX_64X8
{ CLIP_T(13, MAX_V_THICK, MIN_V_THICK),
CLIP_T(13, MAX_V_THICK, MIN_V_THICK),
CLIP_T(19, MAX_V_THICK, MIN_V_THICK),
CLIP_T(15, MAX_V_THICK, MIN_V_THICK),
CLIP_T(13, MAX_V_THICK, MIN_V_THICK),
CLIP_T(15, MAX_V_THICK, MIN_V_THICK),
CLIP_T(17, MAX_V_THICK, MIN_V_THICK) }, // TX_4X64
{ CLIP_T(5, MAX_V_THICK, MIN_V_THICK),
CLIP_T(4, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(6, MAX_V_THICK, MIN_V_THICK),
CLIP_T(3, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK),
CLIP_T(9, MAX_V_THICK, MIN_V_THICK) }, // TX_64X4
#endif // CONFIG_FLEX_PARTITION
};
static const int adapt_filter_intra_top_right_offset
[TX_SIZES_ALL][ADAPT_FILTER_INTRA_MODES] = {
{ 1, 4, 3, 2, 1, -4, 0 }, // TX_4X4
{ 2, 1, 7, -1, 1, 1, 3 }, // TX_8X8
{ -2, -1, 8, -3, 5, 2, 5 }, // TX_16X16
{ -2, -3, 17, -3, 14, 2, 14 }, // TX_32X32
{ 0, 0, 33, 0, 33, 0, 33 }, // TX_64X64
{ -3, 1, 4, 2, 1, 3, 6 }, // TX_4X8
{ 0, 1, 6, 2, 5, -3, 3 }, // TX_8X4
{ -1, 0, 8, -4, 3, 2, 5 }, // TX_8X16
{ 0, 0, 8, -3, 7, 0, 11 }, // TX_16X8
{ 0, -2, 10, -2, 6, -4, 7 }, // TX_16X32
{ -1, -4, 20, -3, 16, -3, 15 }, // TX_32X16
{ 0, 0, 17, 0, 17, 0, 17 }, // TX_32X64
{ 0, 0, 33, 0, 33, 0, 33 }, // TX_64X32
{ 4, -1, 2, -2, 1, -3, 2 }, // TX_4X16
{ 2, 3, 11, 3, 7, -3, 8 }, // TX_16X4
{ -1, -4, 5, -2, 2, -4, 7 }, // TX_8X32
{ -2, 2, 15, -4, 19, -1, 17 }, // TX_32X8
{ 0, 0, 9, 0, 9, 0, 9 }, // TX_16X64
{ 0, 0, 33, 0, 33, 0, 33 }, // TX_64X16
#if CONFIG_FLEX_PARTITION
// TODO(huisu): Correct these
{ -1, 0, 8, -4, 3, 2, 5 }, // TX_4X32
{ 0, 0, 8, -3, 7, 0, 11 }, // TX_32X4
{ 0, -2, 10, -2, 6, -4, 7 }, // TX_8X64
{ -1, -4, 20, -3, 16, -3, 15 }, // TX_64X8
{ -1, -4, 5, -2, 2, -4, 7 }, // TX_4X64
{ -2, 2, 15, -4, 19, -1, 17 }, // TX_64X4
#endif // CONFIG_FLEX_PARTITION
};
static const int adapt_filter_intra_bottom_left_offset
[TX_SIZES_ALL][ADAPT_FILTER_INTRA_MODES] = {
{ -1, 3, 0, 2, 3, 5, -3 }, // TX_4X4
{ 1, 7, 1, 1, 2, 7, -2 }, // TX_8X8
{ -1, 6, -3, 8, -1, 10, -1 }, // TX_16X16
{ -1, 13, -4, 15, -2, 15, -3 }, // TX_32X32
{ 0, 33, 0, 33, 0, 33, 0 }, // TX_64X64
{ -3, 8, -1, 4, 1, 7, 0 }, // TX_4X8
{ 0, 4, 2, 1, 0, 3, 0 }, // TX_8X4
{ -4, 10, -2, 7, -1, 9, 0 }, // TX_8X16
{ -1, 5, -3, 4, 2, 7, 4 }, // TX_16X8
{ -4, 16, 1, 13, -3, 15, -1 }, // TX_16X32
{ -3, 8, 1, 7, -1, 9, -1 }, // TX_32X16
{ 0, 33, 0, 33, 0, 33, 0 }, // TX_32X64
{ 0, 17, 0, 17, 0, 17, 0 }, // TX_64X32
{ -1, 11, 0, 9, 1, 8, -2 }, // TX_4X16
{ 2, 4, 1, 1, 2, 0, -3 }, // TX_16X4
{ -1, 18, -3, 13, 1, 14, 1 }, // TX_8X32
{ -2, 5, 0, 4, -2, 5, -1 }, // TX_32X8
{ 0, 33, 0, 33, 0, 33, 0 }, // TX_16X64
{ 0, 9, 0, 9, 0, 9, 0 }, // TX_64X16
#if CONFIG_FLEX_PARTITION
// TODO(huisu): Correct these
{ -4, 10, -2, 7, -1, 9, 0 }, // TX_4X32
{ -1, 5, -3, 4, 2, 7, 4 }, // TX_32X4
{ -4, 16, 1, 13, -3, 15, -1 }, // TX_8X64
{ -3, 8, 1, 7, -1, 9, -1 }, // TX_64X8
{ -1, 18, -3, 13, 1, 14, 1 }, // TX_4X64
{ -2, 5, 0, 4, -2, 5, -1 }, // TX_64X4
#endif // CONFIG_FLEX_PARTITION
};
// Specify the number of taps each mode is using (only 3 and 4 are currently
// supported):
static const int adapt_filter_intra_num_taps[ADAPT_FILTER_INTRA_MODES] = {
3, 3, 3, 4, 4, 3, 3
};
// Specify whether each mode uses top-right or bottom-left pixels (it affects
// the size of the training region):
static const int adapt_filter_intra_use_top_right[ADAPT_FILTER_INTRA_MODES] = {
0, 0, 1, 0, 1, 0, 1
};
static const int
adapt_filter_intra_use_bottom_left[ADAPT_FILTER_INTRA_MODES] = { 0, 1, 0, 1,
0, 1, 0 };
// Some modes use only left/top context of the block for training:
static const int adapt_filter_intra_top_allowed[ADAPT_FILTER_INTRA_MODES] = {
1, 1, 1, 0, 1, 1, 1
};
static const int adapt_filter_intra_left_allowed[ADAPT_FILTER_INTRA_MODES] = {
1, 1, 1, 1, 0, 1, 1
};
// To prevent degenerate systems from appearing introduce extra L2
// regularization:
static const int adapt_filter_intra_regularization_coef = 2;
static void adapt_filter_intra_accumulate_stats(
const uint8_t *ref, int stride, TX_SIZE tx_size, int n_top_px,
int n_topright_px, int n_left_px, int n_bottomleft_px, int64_t *dst_stats,
int px_row, int px_col, int mode) {
const int txwpx = tx_size_wide[tx_size];
const int txhpx = tx_size_high[tx_size];
const int up_offs =
AOMMIN(adapt_filter_intra_thickness_ver[tx_size][mode], px_row) - 1;
const int left_offs =
AOMMIN(adapt_filter_intra_thickness_hor[tx_size][mode], px_col) - 1;
const int top_right_offs = adapt_filter_intra_top_right_offset[tx_size][mode];
const int bottom_left_offs =
adapt_filter_intra_bottom_left_offset[tx_size][mode];
const int w_adjust = adapt_filter_intra_use_top_right[mode] ? -1 : 0;
const int h_adjust = adapt_filter_intra_use_bottom_left[mode] ? -1 : 0;
const int top_width =
AOMMIN(n_top_px + n_topright_px, txwpx + top_right_offs);
const int left_height =
AOMMIN(n_left_px + n_bottomleft_px, txhpx + bottom_left_offs);
const adapt_filter_intra_accum_fn accum_fn =
adapt_filter_intra_accum_fns[mode];
if (adapt_filter_intra_top_allowed[mode] &&
adapt_filter_intra_left_allowed[mode]) {
if (n_top_px > 0 && n_left_px > 0) {
accum_fn(ref - up_offs * stride, stride, top_width + w_adjust,
up_offs + h_adjust, dst_stats);
accum_fn(ref - left_offs, stride, left_offs + w_adjust,
left_height + h_adjust, dst_stats);
accum_fn(ref - up_offs * stride - left_offs, stride, left_offs, up_offs,
dst_stats);
} else if (n_top_px > 0) {
accum_fn(ref - up_offs * stride + 1, stride, top_width - 1 + w_adjust,
up_offs + h_adjust, dst_stats);
} else if (n_left_px > 0) {
accum_fn(ref + stride - left_offs, stride, left_offs + w_adjust,
left_height - 1 + h_adjust, dst_stats);
}
} else if (adapt_filter_intra_top_allowed[mode]) {
const int extra_offs = (n_left_px > 0 || bottom_left_offs <= 0)
? AOMMIN(bottom_left_offs, px_col)
: 0;
accum_fn(ref - up_offs * stride - (extra_offs - 1), stride,
top_width + extra_offs - 1 + w_adjust, up_offs + h_adjust,
dst_stats);
} else if (adapt_filter_intra_left_allowed[mode]) {
const int extra_offs = (n_top_px > 0 || top_right_offs <= 0)
? AOMMIN(top_right_offs, px_row)
: 0;
accum_fn(ref - (extra_offs - 1) * stride - left_offs, stride,
left_offs + w_adjust, left_height + extra_offs - 1 + h_adjust,
dst_stats);
}
}
static void adapt_filter_intra_accumulate_stats_hbd(
const uint16_t *ref, int stride, TX_SIZE tx_size, int n_top_px,
int n_topright_px, int n_left_px, int n_bottomleft_px, int64_t *dst_stats,
int px_row, int px_col, int mode) {
const int txwpx = tx_size_wide[tx_size];
const int txhpx = tx_size_high[tx_size];
const int up_offs =
AOMMIN(adapt_filter_intra_thickness_ver[tx_size][mode], px_row) - 1;
const int left_offs =
AOMMIN(adapt_filter_intra_thickness_hor[tx_size][mode], px_col) - 1;
const int top_right_offs = adapt_filter_intra_top_right_offset[tx_size][mode];
const int bottom_left_offs =
adapt_filter_intra_bottom_left_offset[tx_size][mode];
const int w_adjust = adapt_filter_intra_use_top_right[mode] ? -1 : 0;
const int h_adjust = adapt_filter_intra_use_bottom_left[mode] ? -1 : 0;
const int top_width =
AOMMIN(n_top_px + n_topright_px, txwpx + top_right_offs);
const int left_height =
AOMMIN(n_left_px + n_bottomleft_px, txhpx + bottom_left_offs);
const adapt_filter_intra_accum_fn_hbd accum_fn =
adapt_filter_intra_accum_fns_hbd[mode];
if (adapt_filter_intra_top_allowed[mode] &&
adapt_filter_intra_left_allowed[mode]) {
if (n_top_px > 0 && n_left_px > 0) {
accum_fn(ref - up_offs * stride, stride, top_width + w_adjust,
up_offs + h_adjust, dst_stats);
accum_fn(ref - left_offs, stride, left_offs + w_adjust,
left_height + h_adjust, dst_stats);
accum_fn(ref - up_offs * stride - left_offs, stride, left_offs, up_offs,
dst_stats);
} else if (n_top_px > 0) {
accum_fn(ref - up_offs * stride + 1, stride, top_width - 1 + w_adjust,
up_offs + h_adjust, dst_stats);
} else if (n_left_px > 0) {
accum_fn(ref + stride - left_offs, stride, left_offs + w_adjust,
left_height - 1 + h_adjust, dst_stats);
}
} else if (adapt_filter_intra_top_allowed[mode]) {
const int extra_offs = (n_left_px > 0 || bottom_left_offs <= 0)
? AOMMIN(bottom_left_offs, px_col)
: 0;
accum_fn(ref - up_offs * stride - (extra_offs - 1), stride,
top_width + extra_offs - 1 + w_adjust, up_offs + h_adjust,
dst_stats);
} else if (adapt_filter_intra_left_allowed[mode]) {
const int extra_offs = (n_top_px > 0 || top_right_offs <= 0)
? AOMMIN(top_right_offs, px_row)
: 0;
accum_fn(ref - (extra_offs - 1) * stride - left_offs, stride,
left_offs + w_adjust, left_height + extra_offs - 1 + h_adjust,
dst_stats);
}
}
static void adapt_filter_intra_solve_3x3(const int64_t *coefs,
double *dst_solution) {
// coefs layout:
// 0 1 3 | 6
// 1 2 4 | 7
// 3 4 5 | 8
const int64_t *lhs = coefs;
const int64_t *rhs = coefs + 6;
// Precompute determinants of 6 2x2 submatrices:
int64_t a[6];
a[0] = lhs[1] * lhs[4] - lhs[2] * lhs[3];
a[1] = lhs[1] * lhs[5] - lhs[4] * lhs[3];
a[2] = lhs[1] * rhs[2] - rhs[1] * lhs[3];
a[3] = lhs[2] * lhs[5] - lhs[4] * lhs[4];
a[4] = lhs[2] * rhs[2] - rhs[1] * lhs[4];
a[5] = lhs[4] * rhs[2] - rhs[1] * lhs[5];
// Compute 4 determinats that we actually care about
const int64_t base_det = lhs[0] * a[3] - lhs[1] * a[1] + lhs[3] * a[0];
assert(base_det != 0);
const int64_t det1 = rhs[0] * a[3] + lhs[1] * a[5] - lhs[3] * a[4];
const int64_t det2 = -lhs[0] * a[5] - rhs[0] * a[1] + lhs[3] * a[2];
const int64_t det3 = lhs[0] * a[4] - lhs[1] * a[2] + rhs[0] * a[0];
dst_solution[0] = (double)det1 / (double)base_det;
dst_solution[1] = (double)det2 / (double)base_det;
dst_solution[2] = (double)det3 / (double)base_det;
}
static void adapt_filter_intra_solve_4x4(const int64_t *coefs,
double *dst_solution) {
// coefs layout:
// 0 1 3 6 | 10
// 1 2 4 7 | 11
// 3 4 5 8 | 12
// 6 7 8 9 | 13
const int64_t *lhs = coefs;
const int64_t *rhs = coefs + 10;
// Precompute determinants of 20 2x2 submatrices:
int64_t a[10], b[10];
a[0] = lhs[0] * lhs[2] - lhs[1] * lhs[1];
a[1] = lhs[0] * lhs[4] - lhs[3] * lhs[1];
a[2] = lhs[0] * lhs[7] - lhs[6] * lhs[1];
a[3] = lhs[0] * rhs[1] - rhs[0] * lhs[1];
a[4] = lhs[1] * lhs[4] - lhs[3] * lhs[2];
a[5] = lhs[1] * lhs[7] - lhs[6] * lhs[2];
a[6] = lhs[1] * rhs[1] - rhs[0] * lhs[2];
a[7] = lhs[3] * lhs[7] - lhs[6] * lhs[4];
a[8] = lhs[3] * rhs[1] - rhs[0] * lhs[4];
a[9] = lhs[6] * rhs[1] - rhs[0] * lhs[7];
b[0] = lhs[3] * lhs[7] - lhs[4] * lhs[6];
b[1] = lhs[3] * lhs[8] - lhs[5] * lhs[6];
b[2] = lhs[3] * lhs[9] - lhs[8] * lhs[6];
b[3] = lhs[3] * rhs[3] - rhs[2] * lhs[6];
b[4] = lhs[4] * lhs[8] - lhs[5] * lhs[7];
b[5] = lhs[4] * lhs[9] - lhs[8] * lhs[7];
b[6] = lhs[4] * rhs[3] - rhs[2] * lhs[7];
b[7] = lhs[5] * lhs[9] - lhs[8] * lhs[8];
b[8] = lhs[5] * rhs[3] - rhs[2] * lhs[8];
b[9] = lhs[8] * rhs[3] - rhs[2] * lhs[9];
// Compute 5 determinats that we actually care about
const int64_t base_det = a[0] * b[7] + a[7] * b[0] + a[2] * b[4] +
a[4] * b[2] - a[5] * b[1] - a[1] * b[5];
assert(base_det != 0);
const int64_t det1 = a[5] * b[8] + a[8] * b[5] - a[6] * b[7] - a[7] * b[6] -
a[4] * b[9] - a[9] * b[4];
const int64_t det2 = a[1] * b[9] + a[9] * b[1] + a[3] * b[7] + a[7] * b[3] -
a[2] * b[8] - a[8] * b[2];
const int64_t det3 = a[2] * b[6] + a[6] * b[2] - a[0] * b[9] - a[9] * b[0] -
a[3] * b[5] - a[5] * b[3];
const int64_t det4 = a[0] * b[8] + a[8] * b[0] + a[3] * b[4] + a[4] * b[3] -
a[6] * b[1] - a[1] * b[6];
dst_solution[0] = (double)det1 / (double)base_det;
dst_solution[1] = (double)det2 / (double)base_det;
dst_solution[2] = (double)det3 / (double)base_det;
dst_solution[3] = (double)det4 / (double)base_det;
}
static void adapt_filter_intra_predictor(
uint8_t *dst, ptrdiff_t dst_stride, const uint8_t *ref,
ptrdiff_t ref_stride, int n_top_px, int n_topright_px, int n_left_px,
int n_bottomleft_px, TX_SIZE tx_size, const uint8_t *above_row,
const uint8_t *left_col, int mode, int px_row, int px_col) {
// Form a linear system of equations from the statistics collected over the
// training region around the current transform unit:
int64_t accumulated_stats[14] = { 0 };
adapt_filter_intra_accumulate_stats(ref, ref_stride, tx_size, n_top_px,
n_topright_px, n_left_px, n_bottomleft_px,
accumulated_stats, px_row, px_col, mode);
// Apply regularization and solve the resulting system to get the adaptive
// filter coefficients:
double adapt_filter[4] = { 0 };
if (adapt_filter_intra_num_taps[mode] == 3) {
accumulated_stats[0] += adapt_filter_intra_regularization_coef;
accumulated_stats[2] += adapt_filter_intra_regularization_coef;
accumulated_stats[5] += adapt_filter_intra_regularization_coef;
adapt_filter_intra_solve_3x3(accumulated_stats, adapt_filter);
} else if (adapt_filter_intra_num_taps[mode] == 4) {
accumulated_stats[0] += adapt_filter_intra_regularization_coef;
accumulated_stats[2] += adapt_filter_intra_regularization_coef;
accumulated_stats[5] += adapt_filter_intra_regularization_coef;
accumulated_stats[9] += adapt_filter_intra_regularization_coef;
adapt_filter_intra_solve_4x4(accumulated_stats, adapt_filter);
} else {
assert(0);
}
// Finally, perform prediction using the fit filter coefficients:
adapt_filter_intra_pred_fns[mode](dst, dst_stride, tx_size, adapt_filter,
above_row, left_col);
}
static void adapt_filter_intra_predictor_hbd(
uint16_t *dst, ptrdiff_t dst_stride, const uint16_t *ref,
ptrdiff_t ref_stride, int n_top_px, int n_topright_px, int n_left_px,
int n_bottomleft_px, TX_SIZE tx_size, const uint16_t *above_row,
const uint16_t *left_col, int mode, int px_row, int px_col) {
// Form a linear system of equations from the statistics collected over the
// training region around the current transform unit:
int64_t accumulated_stats[14] = { 0 };
adapt_filter_intra_accumulate_stats_hbd(
ref, ref_stride, tx_size, n_top_px, n_topright_px, n_left_px,
n_bottomleft_px, accumulated_stats, px_row, px_col, mode);
// Apply regularization and solve the resulting system to get the adaptive
// filter coefficients:
double adapt_filter[4] = { 0 };
if (adapt_filter_intra_num_taps[mode] == 3) {
accumulated_stats[0] += adapt_filter_intra_regularization_coef;
accumulated_stats[2] += adapt_filter_intra_regularization_coef;
accumulated_stats[5] += adapt_filter_intra_regularization_coef;
adapt_filter_intra_solve_3x3(accumulated_stats, adapt_filter);
} else if (adapt_filter_intra_num_taps[mode] == 4) {
accumulated_stats[0] += adapt_filter_intra_regularization_coef;
accumulated_stats[2] += adapt_filter_intra_regularization_coef;
accumulated_stats[5] += adapt_filter_intra_regularization_coef;
accumulated_stats[9] += adapt_filter_intra_regularization_coef;
adapt_filter_intra_solve_4x4(accumulated_stats, adapt_filter);
} else {
assert(0);
}
// Finally, perform prediction using the fit filter coefficients:
adapt_filter_intra_pred_fns_hbd[mode](dst, dst_stride, tx_size, adapt_filter,
above_row, left_col);
}
#endif // CONFIG_ADAPT_FILTER_INTRA
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,
#if CONFIG_ADAPT_FILTER_INTRA
ADAPT_FILTER_INTRA_MODE adapt_filter_intra_mode, int col_off, int row_off,
#endif
#if CONFIG_DERIVED_INTRA_MODE
int derived_angle,
#endif // CONFIG_DERIVED_INTRA_MODE
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 CONFIG_DERIVED_INTRA_MODE
if (derived_angle > 0) p_angle = derived_angle;
#endif // CONFIG_DERIVED_INTRA_MODE
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;
#if CONFIG_ADAPT_FILTER_INTRA
const int use_adapt_filter_intra =
adapt_filter_intra_mode != ADAPT_FILTER_INTRA_MODES;
if (use_adapt_filter_intra) need_left = need_above = need_above_left = 1;
#endif // CONFIG_ADAPT_FILTER_INTRA
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 CONFIG_ADAPT_FILTER_INTRA
if (use_adapt_filter_intra) need_bottom = 1;
#endif
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 CONFIG_ADAPT_FILTER_INTRA
if (use_adapt_filter_intra) need_right = 1;
#endif
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 CONFIG_ADAPT_FILTER_INTRA
if (use_adapt_filter_intra) {
const int px_row = (-xd->mb_to_top_edge >> 3) + (row_off << MI_SIZE_LOG2);
const int px_col = (-xd->mb_to_left_edge >> 3) + (col_off << MI_SIZE_LOG2);
adapt_filter_intra_predictor_hbd(dst, dst_stride, ref, ref_stride, n_top_px,
n_topright_px, n_left_px, n_bottomleft_px,
tx_size, above_row, left_col,
adapt_filter_intra_mode, px_row, px_col);
return;
}
#endif // CONFIG_ADAPT_FILTER_INTRA
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);
}
}
void av1_bd_memmove(uint8_t *dst, const uint8_t *ref, size_t n, bool is_hbd) {
if (is_hbd) {
uint16_t *dst16 = CONVERT_TO_SHORTPTR(dst);
const uint16_t *ref16 = CONVERT_TO_SHORTPTR(ref);
memmove(dst16, ref16, n * sizeof(uint16_t));
return;
}
memmove(dst, ref, n * sizeof(uint8_t));
}
void av1_bd_memset(uint8_t *dst, int c, size_t n, bool is_hbd) {
if (is_hbd) {
uint16_t *dst16 = CONVERT_TO_SHORTPTR(dst);
for (size_t i = 0; i < n; ++i) {
dst16[i] = c;
}
return;
}
memset(dst, c, n);
}
// If a value cannot be copied for the intra-prediction extension (because there
// is no existing valuet to base it on), this base color is used. Defaults to
// 128 for 8-bit, 512 for 10-bit, 2048 for 12-bit.
static int base_value(aom_bit_depth_t bd) {
switch (bd) {
case AOM_BITS_8: return 1 << 7;
case AOM_BITS_10: return 1 << 9;
case AOM_BITS_12: return 1 << 11;
default: assert(false && "unsupported bit-depth"); return 0;
}
}
static int last_val_bd(const uint8_t *ref, int offset, bool is_hbd) {
if (is_hbd) {
return CONVERT_TO_SHORTPTR(ref)[offset];
}
return ref[offset];
}
int av1_intra_top_available(const MACROBLOCKD *xd, int plane) {
const struct macroblockd_plane *const pd = &xd->plane[plane];
const int have_top =
(pd->subsampling_y ? xd->chroma_up_available : xd->up_available);
if (have_top) {
return -xd->mb_to_top_edge >> (3 + pd->subsampling_y);
} else {
return 0;
}
}
int av1_intra_left_available(const MACROBLOCKD *xd, int plane) {
const struct macroblockd_plane *const pd = &xd->plane[plane];
const int have_left =
(pd->subsampling_x ? xd->chroma_left_available : xd->left_available);
if (have_left) {
return -xd->mb_to_left_edge >> (3 + pd->subsampling_x);
} else {
return 0;
}
}
int av1_intra_bottom_unavailable(const MACROBLOCKD *xd, const int plane,
const TX_SIZE tx_size) {
const int txhpx = tx_size_high[tx_size];
const int hpx = xd->plane[plane].height;
const int ssy = xd->plane[plane].subsampling_y;
const int yd = (xd->mb_to_bottom_edge >> (3 + ssy)) + hpx - txhpx;
return yd < 0 ? -1 * yd : 0;
}
int av1_intra_right_unavailable(const MACROBLOCKD *xd, const int plane,
const TX_SIZE tx_size) {
const int txwpx = tx_size_wide[tx_size];
const int wpx = xd->plane[plane].width;
const int ssx = xd->plane[plane].subsampling_x;
const int xr = (xd->mb_to_right_edge >> (3 + ssx)) + wpx - txwpx;
return xr < 0 ? -1 * xr : 0;
}
static void extend_intra_border_cols(const uint8_t *ref, int ref_stride,
uint8_t *dst, int dst_stride,
int left_available_cols,
int bottom_unavailable_rows,
const int height, int border,
aom_bit_depth_t bd, bool is_hbd) {
assert(height > bottom_unavailable_rows);
const int left_part = AOMMIN(border, left_available_cols);
// If there is no data, use the default value.
if (left_part == 0) {
const int left_default_val = base_value(bd) + 1;
dst -= border;
for (int j = 0; j < height; ++j) {
av1_bd_memset(dst, left_default_val, border, is_hbd);
dst += dst_stride;
}
return;
}
dst -= border;
ref -= left_part;
const int copyable = height - bottom_unavailable_rows;
for (int j = 0; j < copyable; ++j) {
// If there is partial data, replicate the closest column.
int last_val = last_val_bd(ref, 0, is_hbd);
av1_bd_memset(dst, last_val, border - left_part, is_hbd);
// Copy over the remaining values.
av1_bd_memmove(dst + border - left_part, ref, left_part, is_hbd);
dst += dst_stride;
ref += ref_stride;
}
for (int j = 0; j < bottom_unavailable_rows; ++j) {
// Copy the previous row.
av1_bd_memmove(dst, dst - dst_stride, border, is_hbd);
dst += dst_stride;
}
}
static void extend_intra_border_rows(const uint8_t *ref, int ref_stride,
uint8_t *dst, int dst_stride,
int top_available_rows,
int right_unavailable_cols,
const int width, int border,
aom_bit_depth_t bd, bool is_hbd) {
assert(width > right_unavailable_cols);
const int top_part = AOMMIN(border, top_available_rows);
// If there is no data, use the default value.
if (top_part == 0) {
const int top_default_val = base_value(bd) - 1;
dst -= border * dst_stride;
for (int j = 0; j < border; ++j) {
av1_bd_memset(dst, top_default_val, width, is_hbd);
dst += dst_stride;
}
return;
}
// If there is partial data, replicate the closest row.
dst -= border * dst_stride;
ref -= top_part * ref_stride;
const int copyable = width - right_unavailable_cols;
for (int j = 0; j < border - top_part; ++j) {
av1_bd_memmove(dst, ref, copyable, is_hbd);
int last_val = last_val_bd(dst, copyable - 1, is_hbd);
av1_bd_memset(dst + copyable, last_val, right_unavailable_cols, is_hbd);
dst += dst_stride;
}
// Copy over the remaining data.
for (int j = 0; j < top_part; ++j) {
av1_bd_memmove(dst, ref, copyable, is_hbd);
int last_val = last_val_bd(dst, copyable - 1, is_hbd);
av1_bd_memset(dst + copyable, last_val, right_unavailable_cols, is_hbd);
dst += dst_stride;
ref += ref_stride;
}
}
static void extend_intra_border_corner(const uint8_t *ref, int ref_stride,
uint8_t *dst, int dst_stride,
int top_available_rows,
int left_available_cols, int border,
aom_bit_depth_t bd, bool is_hbd) {
const int top_part = AOMMIN(border, top_available_rows);
const int left_part = AOMMIN(border, left_available_cols);
const int corner_part = AOMMIN(top_part, left_part);
// If there is no data, use the default value.
if (corner_part == 0) {
const int corner_default_val = base_value(bd) - 1;
dst -= border * dst_stride + border;
for (int j = 0; j < border; ++j) {
av1_bd_memset(dst, corner_default_val, border, is_hbd);
dst += dst_stride;
}
return;
}
dst -= dst_stride * corner_part + border;
ref -= ref_stride * corner_part + corner_part;
for (int j = 0; j < corner_part; ++j) {
// If there is partial data, replicate the closest column.
int last_val = last_val_bd(ref, 0, is_hbd);
av1_bd_memset(dst, last_val, border - corner_part, is_hbd);
// Copy over the remaining values.
av1_bd_memmove(dst + border - corner_part, ref, corner_part, is_hbd);
dst += dst_stride;
ref += ref_stride;
}
// Replicate upward as necessary.
const uint8_t *dst_ref = dst - dst_stride * corner_part;
dst -= dst_stride * border;
for (int j = 0; j < border - corner_part; ++j) {
av1_bd_memmove(dst, dst_ref, border, is_hbd);
dst += dst_stride;
}
}
// The rules for extending the intra-prediction border.
//
// The intra-pred border region consists of 3 areas: a top-left corner,
// left columns, and top rows. To illustrate, assume the border
// width is 2 and block size is 4x4. "X" marks the start of the pointer,
// 1 represents the top corner, 2 represents the top rows, and 3 represents the
// left columns:
//
// 1 1 2 2 2 2
// 1 1 2 2 2 2
// 3 3 X . . .
// 3 3 . . . .
// 3 3 . . . .
// 3 3 . . . .
//
// The following rules are used for creating the intra-pred border region:
//
// 1. If the reference buffer has data present for the rows, they
// are copied over into the destination buffer. If partial data exists, then
// the last valid row is replicated upward to fill the buffer. If no data at all
// exists, then compute the default value ((1 << (bit depth - 1)) - 1) and
// set the rows to it.
//
// 2. For columns, the same rule applies, except replicate leftward, and the
// the default value is ((1 << (bit depth - 1)) + 1).
//
// 3. For the top-left, if it exists in the reference buffer, copy
// it over. If no values exist, use ((1 << (bit depth - 1)) - 1). Otherwise,
// replicate leftward followed by replicating upward.
//
// Note that it's possible for a block to extend beyond the boundaries of an
// image (imagine a 32x8 block positioned 32 pixels from the right border
// but only 4 pixels from the bottom border -- it would extend 4 pixels
// below the end of the frame). In this situation, the unavailable rows or
// columns must be extended.
void av1_extend_intra_border(const uint8_t *ref, int ref_stride, uint8_t *dst,
int dst_stride, int top_available_rows,
int right_unavailable_cols,
int left_available_cols,
int bottom_unavailable_rows, const int width,
const int height, int border, aom_bit_depth_t bd,
bool is_hbd) {
// Step 1: copy over the rows.
extend_intra_border_rows(ref, ref_stride, dst, dst_stride, top_available_rows,
right_unavailable_cols, width, border, bd, is_hbd);
// Step 2: copy over the columns.
extend_intra_border_cols(ref, ref_stride, dst, dst_stride,
left_available_cols, bottom_unavailable_rows, height,
border, bd, is_hbd);
// Step 3: copy over the top-left corner. No need to check for unavailable
// rows or columns -- in such a case where it would affect it, either
// top_available_rows or left_available cols would be zero.
assert(right_unavailable_cols < width);
assert(bottom_unavailable_rows < height);
extend_intra_border_corner(ref, ref_stride, dst, dst_stride,
top_available_rows, left_available_cols, border,
bd, is_hbd);
}
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,
#if CONFIG_ADAPT_FILTER_INTRA
ADAPT_FILTER_INTRA_MODE adapt_filter_intra_mode, int col_off, int row_off,
#endif
#if CONFIG_DERIVED_INTRA_MODE
int derived_angle,
#endif // CONFIG_DERIVED_INTRA_MODE
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 CONFIG_DERIVED_INTRA_MODE
if (derived_angle > 0) p_angle = derived_angle;
#endif // CONFIG_DERIVED_INTRA_MODE
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;
#if CONFIG_ADAPT_FILTER_INTRA
const int use_adapt_filter_intra =
adapt_filter_intra_mode != ADAPT_FILTER_INTRA_MODES;
if (use_adapt_filter_intra) need_left = need_above = need_above_left = 1;
#endif // CONFIG_ADAPT_FILTER_INTRA
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 CONFIG_ADAPT_FILTER_INTRA
if (use_adapt_filter_intra) need_bottom = 1;
#endif
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 CONFIG_ADAPT_FILTER_INTRA
if (use_adapt_filter_intra) need_right = 1;
#endif
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 CONFIG_ADAPT_FILTER_INTRA
if (use_adapt_filter_intra) {
const int px_row = (-xd->mb_to_top_edge >> 3) + (row_off << MI_SIZE_LOG2);
const int px_col = (-xd->mb_to_left_edge >> 3) + (col_off << MI_SIZE_LOG2);
adapt_filter_intra_predictor(dst, dst_stride, ref, ref_stride, n_top_px,
n_topright_px, n_left_px, n_bottomleft_px,
tx_size, above_row, left_col,
adapt_filter_intra_mode, px_row, px_col);
return;
}
#endif // CONFIG_ADAPT_FILTER_INTRA
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,
#if CONFIG_ADAPT_FILTER_INTRA
ADAPT_FILTER_INTRA_MODE adapt_filter_intra_mode,
#endif
#if CONFIG_DERIVED_INTRA_MODE
int derived_angle,
#endif // CONFIG_DERIVED_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 (is_cur_buf_hbd(xd)) {
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);
// force 4x4 chroma component block size.
bsize = plane ? mbmi->chroma_ref_info.bsize_base : bsize;
int px_top_right = 0;
const int have_top_right = has_top_right(
cm, xd, bsize, mi_row, mi_col, have_top, right_available, tx_size,
row_off, col_off, pd->subsampling_x, pd->subsampling_y, xr, &px_top_right,
bsize != mbmi->sb_type);
int px_bottom_left = 0;
const int have_bottom_left = has_bottom_left(
cm, xd, bsize, mi_row, mi_col, bottom_available, have_left, tx_size,
row_off, col_off, pd->subsampling_x, pd->subsampling_y, yd,
&px_bottom_left, bsize != mbmi->sb_type);
const int disable_edge_filter = !cm->seq_params.enable_intra_edge_filter;
if (is_cur_buf_hbd(xd)) {
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 ? px_top_right : 0,
have_left ? AOMMIN(txhpx, yd + txhpx) : 0,
have_bottom_left ? px_bottom_left : 0,
#if CONFIG_ADAPT_FILTER_INTRA
adapt_filter_intra_mode, col_off, row_off,
#endif
#if CONFIG_DERIVED_INTRA_MODE
derived_angle,
#endif // CONFIG_DERIVED_INTRA_MODE
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 ? px_top_right : 0,
have_left ? AOMMIN(txhpx, yd + txhpx) : 0,
have_bottom_left ? px_bottom_left : 0,
#if CONFIG_ADAPT_FILTER_INTRA
adapt_filter_intra_mode, col_off, row_off,
#endif
#if CONFIG_DERIVED_INTRA_MODE
derived_angle,
#endif // CONFIG_DERIVED_INTRA_MODE
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;
#if CONFIG_ADAPT_FILTER_INTRA
const ADAPT_FILTER_INTRA_MODE adapt_filter_intra_mode =
(plane == AOM_PLANE_Y &&
mbmi->adapt_filter_intra_mode_info.use_adapt_filter_intra)
? mbmi->adapt_filter_intra_mode_info.adapt_filter_intra_mode
: ADAPT_FILTER_INTRA_MODES;
#endif // CONFIG_ADAPT_FILTER_INTRA
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->chroma_ref_info.bsize_base, 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,
#if CONFIG_ADAPT_FILTER_INTRA
adapt_filter_intra_mode,
#endif
#if CONFIG_DERIVED_INTRA_MODE
mbmi->use_derived_intra_mode[plane != 0] ? mbmi->derived_angle : 0,
#endif // CONFIG_DERIVED_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;
}
#if CONFIG_DERIVED_INTRA_MODE && FUSION_MODE
if (mbmi->use_derived_intra_mode[plane != 0]) {
int buf[MAX_SB_SQUARE] = { 0 };
const int bw = tx_size_wide[tx_size];
const int bh = tx_size_high[tx_size];
for (int i = 0; i < NUM_DERIVED_INTRA_MODES; ++i) {
av1_predict_intra_block(cm, xd, pd->width, pd->height, tx_size, mode,
angle_delta, use_palette, filter_intra_mode,
#if CONFIG_ADAPT_FILTER_INTRA
adapt_filter_intra_mode,
#endif
mbmi->derived_intra_angles[i], dst, dst_stride,
dst, dst_stride, blk_col, blk_row, plane);
const int wt = mbmi->derived_intra_weights[i];
for (int r = 0; r < bh; ++r) {
for (int c = 0; c < bw; ++c) {
buf[r * MAX_SB_SIZE + c] += wt * dst[r * dst_stride + c];
}
}
}
for (int r = 0; r < bh; ++r) {
for (int c = 0; c < bw; ++c) {
const int temp = ROUND_POWER_OF_TWO(buf[r * MAX_SB_SIZE + c],
DERIVED_INTRA_FUSION_SHIFT);
dst[r * dst_stride + c] = clip_pixel(temp);
}
}
return;
}
#endif // CONFIG_DERIVED_INTRA_MODE
av1_predict_intra_block(
cm, xd, pd->width, pd->height, tx_size, mode, angle_delta, use_palette,
filter_intra_mode,
#if CONFIG_ADAPT_FILTER_INTRA
adapt_filter_intra_mode,
#endif
#if CONFIG_DERIVED_INTRA_MODE
mbmi->use_derived_intra_mode[plane != 0] ? mbmi->derived_angle : 0,
#endif // CONFIG_DERIVED_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);
}