ref: 8d8ee1f644059afe2cb5837843dbf296461b78eb
dir: /vp10/common/reconintra.c/
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "./vpx_config.h"
#include "./vpx_dsp_rtcd.h"
#if CONFIG_VP9_HIGHBITDEPTH
#include "vpx_dsp/vpx_dsp_common.h"
#endif // CONFIG_VP9_HIGHBITDEPTH
#include "vpx_mem/vpx_mem.h"
#include "vpx_ports/mem.h"
#include "vpx_ports/vpx_once.h"
#include "vp10/common/reconintra.h"
#include "vp10/common/onyxc_int.h"
#if CONFIG_MISC_FIXES
enum {
NEED_LEFT = 1 << 1,
NEED_ABOVE = 1 << 2,
NEED_ABOVERIGHT = 1 << 3,
NEED_ABOVELEFT = 1 << 4,
NEED_BOTTOMLEFT = 1 << 5,
};
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, // D117
NEED_LEFT | NEED_ABOVE | NEED_ABOVELEFT, // D153
NEED_LEFT | NEED_BOTTOMLEFT, // D207
NEED_ABOVE | NEED_ABOVERIGHT, // D63
NEED_LEFT | NEED_ABOVE | NEED_ABOVELEFT, // TM
};
#else
enum {
NEED_LEFT = 1 << 1,
NEED_ABOVE = 1 << 2,
NEED_ABOVERIGHT = 1 << 3,
};
static const uint8_t extend_modes[INTRA_MODES] = {
NEED_ABOVE | NEED_LEFT, // DC
NEED_ABOVE, // V
NEED_LEFT, // H
NEED_ABOVERIGHT, // D45
NEED_LEFT | NEED_ABOVE, // D135
NEED_LEFT | NEED_ABOVE, // D117
NEED_LEFT | NEED_ABOVE, // D153
NEED_LEFT, // D207
NEED_ABOVERIGHT, // D63
NEED_LEFT | NEED_ABOVE, // TM
};
#endif
#if CONFIG_MISC_FIXES
static const uint8_t orders_64x64[1] = { 0 };
static const uint8_t orders_64x32[2] = { 0, 1 };
static const uint8_t orders_32x64[2] = { 0, 1 };
static const uint8_t orders_32x32[4] = {
0, 1,
2, 3,
};
static const uint8_t orders_32x16[8] = {
0, 2,
1, 3,
4, 6,
5, 7,
};
static const uint8_t orders_16x32[8] = {
0, 1, 2, 3,
4, 5, 6, 7,
};
static const uint8_t orders_16x16[16] = {
0, 1, 4, 5,
2, 3, 6, 7,
8, 9, 12, 13,
10, 11, 14, 15,
};
static const uint8_t orders_16x8[32] = {
0, 2, 8, 10,
1, 3, 9, 11,
4, 6, 12, 14,
5, 7, 13, 15,
16, 18, 24, 26,
17, 19, 25, 27,
20, 22, 28, 30,
21, 23, 29, 31,
};
static const uint8_t orders_8x16[32] = {
0, 1, 2, 3, 8, 9, 10, 11,
4, 5, 6, 7, 12, 13, 14, 15,
16, 17, 18, 19, 24, 25, 26, 27,
20, 21, 22, 23, 28, 29, 30, 31,
};
static const uint8_t orders_8x8[64] = {
0, 1, 4, 5, 16, 17, 20, 21,
2, 3, 6, 7, 18, 19, 22, 23,
8, 9, 12, 13, 24, 25, 28, 29,
10, 11, 14, 15, 26, 27, 30, 31,
32, 33, 36, 37, 48, 49, 52, 53,
34, 35, 38, 39, 50, 51, 54, 55,
40, 41, 44, 45, 56, 57, 60, 61,
42, 43, 46, 47, 58, 59, 62, 63,
};
static const uint8_t *const orders[BLOCK_SIZES] = {
orders_8x8, orders_8x8, orders_8x8, orders_8x8,
orders_8x16, orders_16x8, orders_16x16,
orders_16x32, orders_32x16, orders_32x32,
orders_32x64, orders_64x32, orders_64x64,
};
static int vp10_has_right(BLOCK_SIZE bsize, int mi_row, int mi_col,
int right_available,
TX_SIZE txsz, int y, int x, int ss_x) {
if (y == 0) {
int wl = mi_width_log2_lookup[bsize];
int hl = mi_height_log2_lookup[bsize];
int w = 1 << (wl + 1 - ss_x);
int step = 1 << txsz;
const uint8_t *order = orders[bsize];
int my_order, tr_order;
if (x + step < w)
return 1;
mi_row = (mi_row & 7) >> hl;
mi_col = (mi_col & 7) >> wl;
if (mi_row == 0)
return right_available;
if (((mi_col + 1) << wl) >= 8)
return 0;
my_order = order[((mi_row + 0) << (3 - wl)) + mi_col + 0];
tr_order = order[((mi_row - 1) << (3 - wl)) + mi_col + 1];
return my_order > tr_order && right_available;
} else {
int wl = mi_width_log2_lookup[bsize];
int w = 1 << (wl + 1 - ss_x);
int step = 1 << txsz;
return x + step < w;
}
}
static int vp10_has_bottom(BLOCK_SIZE bsize, int mi_row, int mi_col,
int bottom_available, TX_SIZE txsz,
int y, int x, int ss_y) {
if (x == 0) {
int wl = mi_width_log2_lookup[bsize];
int hl = mi_height_log2_lookup[bsize];
int h = 1 << (hl + 1 - ss_y);
int step = 1 << txsz;
const uint8_t *order = orders[bsize];
int my_order, bl_order;
mi_row = (mi_row & 7) >> hl;
mi_col = (mi_col & 7) >> wl;
if (mi_col == 0)
return bottom_available &&
(mi_row << (hl + !ss_y)) + y + step < (8 << !ss_y);
if (((mi_row + 1) << hl) >= 8)
return 0;
if (y + step < h)
return 1;
my_order = order[((mi_row + 0) << (3 - wl)) + mi_col + 0];
bl_order = order[((mi_row + 1) << (3 - wl)) + mi_col - 1];
return bl_order < my_order && bottom_available;
} else {
return 0;
}
}
#endif
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];
static intra_pred_fn dc_pred[2][2][TX_SIZES];
#if CONFIG_VP9_HIGHBITDEPTH
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][4];
static intra_high_pred_fn dc_pred_high[2][2][4];
#endif // CONFIG_VP9_HIGHBITDEPTH
static void vp10_init_intra_predictors_internal(void) {
#define INIT_NO_4X4(p, type) \
p[TX_8X8] = vpx_##type##_predictor_8x8; \
p[TX_16X16] = vpx_##type##_predictor_16x16; \
p[TX_32X32] = vpx_##type##_predictor_32x32
#define INIT_ALL_SIZES(p, type) \
p[TX_4X4] = vpx_##type##_predictor_4x4; \
INIT_NO_4X4(p, type)
INIT_ALL_SIZES(pred[V_PRED], v);
INIT_ALL_SIZES(pred[H_PRED], h);
#if CONFIG_MISC_FIXES
INIT_ALL_SIZES(pred[D207_PRED], d207e);
INIT_ALL_SIZES(pred[D45_PRED], d45e);
INIT_ALL_SIZES(pred[D63_PRED], d63e);
#else
INIT_ALL_SIZES(pred[D207_PRED], d207);
INIT_ALL_SIZES(pred[D45_PRED], d45);
INIT_ALL_SIZES(pred[D63_PRED], d63);
#endif
INIT_ALL_SIZES(pred[D117_PRED], d117);
INIT_ALL_SIZES(pred[D135_PRED], d135);
INIT_ALL_SIZES(pred[D153_PRED], d153);
INIT_ALL_SIZES(pred[TM_PRED], tm);
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);
#if CONFIG_VP9_HIGHBITDEPTH
INIT_ALL_SIZES(pred_high[V_PRED], highbd_v);
INIT_ALL_SIZES(pred_high[H_PRED], highbd_h);
#if CONFIG_MISC_FIXES
INIT_ALL_SIZES(pred_high[D207_PRED], highbd_d207e);
INIT_ALL_SIZES(pred_high[D45_PRED], highbd_d45e);
INIT_ALL_SIZES(pred_high[D63_PRED], highbd_d63);
#else
INIT_ALL_SIZES(pred_high[D207_PRED], highbd_d207);
INIT_ALL_SIZES(pred_high[D45_PRED], highbd_d45);
INIT_ALL_SIZES(pred_high[D63_PRED], highbd_d63);
#endif
INIT_ALL_SIZES(pred_high[D117_PRED], highbd_d117);
INIT_ALL_SIZES(pred_high[D135_PRED], highbd_d135);
INIT_ALL_SIZES(pred_high[D153_PRED], highbd_d153);
INIT_ALL_SIZES(pred_high[TM_PRED], highbd_tm);
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);
#endif // CONFIG_VP9_HIGHBITDEPTH
#undef intra_pred_allsizes
}
#if CONFIG_MISC_FIXES
static INLINE void memset16(uint16_t *dst, int val, int n) {
while (n--)
*dst++ = val;
}
#endif
#if CONFIG_VP9_HIGHBITDEPTH
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,
TX_SIZE tx_size,
#if CONFIG_MISC_FIXES
int n_top_px, int n_topright_px,
int n_left_px, int n_bottomleft_px,
#else
int up_available,
int left_available,
int right_available,
#endif
int x, int y,
int plane, int bd) {
int i;
uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
#if CONFIG_MISC_FIXES
DECLARE_ALIGNED(16, uint16_t, left_col[32]);
#else
DECLARE_ALIGNED(16, uint16_t, left_col[64]);
#endif
DECLARE_ALIGNED(16, uint16_t, above_data[64 + 16]);
uint16_t *above_row = above_data + 16;
const uint16_t *const_above_row = above_row;
const int bs = 4 << tx_size;
#if CONFIG_MISC_FIXES
const uint16_t *above_ref = ref - ref_stride;
#else
int frame_width, frame_height;
int x0, y0;
const struct macroblockd_plane *const pd = &xd->plane[plane];
#endif
const int need_left = extend_modes[mode] & NEED_LEFT;
const int need_above = extend_modes[mode] & NEED_ABOVE;
const int need_aboveright = extend_modes[mode] & NEED_ABOVERIGHT;
int base = 128 << (bd - 8);
// 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 CONFIG_MISC_FIXES
(void) x;
(void) y;
(void) plane;
(void) need_left;
(void) need_above;
(void) need_aboveright;
// NEED_LEFT
if (extend_modes[mode] & NEED_LEFT) {
const int need_bottom = !!(extend_modes[mode] & NEED_BOTTOMLEFT);
i = 0;
if (n_left_px > 0) {
for (; i < n_left_px; i++)
left_col[i] = ref[i * ref_stride - 1];
if (need_bottom && n_bottomleft_px > 0) {
assert(i == bs);
for (; i < bs + n_bottomleft_px; i++)
left_col[i] = ref[i * ref_stride - 1];
}
if (i < (bs << need_bottom))
memset16(&left_col[i], left_col[i - 1], (bs << need_bottom) - i);
} else {
memset16(left_col, base + 1, bs << need_bottom);
}
}
// NEED_ABOVE
if (extend_modes[mode] & NEED_ABOVE) {
const int need_right = !!(extend_modes[mode] & NEED_ABOVERIGHT);
if (n_top_px > 0) {
memcpy(above_row, above_ref, n_top_px * 2);
i = n_top_px;
if (need_right && n_topright_px > 0) {
assert(n_top_px == bs);
memcpy(above_row + bs, above_ref + bs, n_topright_px * 2);
i += n_topright_px;
}
if (i < (bs << need_right))
memset16(&above_row[i], above_row[i - 1], (bs << need_right) - i);
} else {
memset16(above_row, base - 1, bs << need_right);
}
}
if (extend_modes[mode] & NEED_ABOVELEFT) {
above_row[-1] = n_top_px > 0 ?
(n_left_px > 0 ? above_ref[-1] : base + 1) : base - 1;
}
#else
// Get current frame pointer, width and height.
if (plane == 0) {
frame_width = xd->cur_buf->y_width;
frame_height = xd->cur_buf->y_height;
} else {
frame_width = xd->cur_buf->uv_width;
frame_height = xd->cur_buf->uv_height;
}
// Get block position in current frame.
x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
// NEED_LEFT
if (need_left) {
if (left_available) {
if (xd->mb_to_bottom_edge < 0) {
/* slower path if the block needs border extension */
if (y0 + bs <= frame_height) {
for (i = 0; i < bs; ++i)
left_col[i] = ref[i * ref_stride - 1];
} else {
const int extend_bottom = frame_height - y0;
for (i = 0; i < extend_bottom; ++i)
left_col[i] = ref[i * ref_stride - 1];
for (; i < bs; ++i)
left_col[i] = ref[(extend_bottom - 1) * ref_stride - 1];
}
} else {
/* faster path if the block does not need extension */
for (i = 0; i < bs; ++i)
left_col[i] = ref[i * ref_stride - 1];
}
} else {
// TODO(Peter): this value should probably change for high bitdepth
vpx_memset16(left_col, base + 1, bs);
}
}
// NEED_ABOVE
if (need_above) {
if (up_available) {
const uint16_t *above_ref = ref - ref_stride;
if (xd->mb_to_right_edge < 0) {
/* slower path if the block needs border extension */
if (x0 + bs <= frame_width) {
memcpy(above_row, above_ref, bs * sizeof(above_row[0]));
} else if (x0 <= frame_width) {
const int r = frame_width - x0;
memcpy(above_row, above_ref, r * sizeof(above_row[0]));
vpx_memset16(above_row + r, above_row[r - 1], x0 + bs - frame_width);
}
} else {
/* faster path if the block does not need extension */
if (bs == 4 && right_available && left_available) {
const_above_row = above_ref;
} else {
memcpy(above_row, above_ref, bs * sizeof(above_row[0]));
}
}
above_row[-1] = left_available ? above_ref[-1] : (base + 1);
} else {
vpx_memset16(above_row, base - 1, bs);
above_row[-1] = base - 1;
}
}
// NEED_ABOVERIGHT
if (need_aboveright) {
if (up_available) {
const uint16_t *above_ref = ref - ref_stride;
if (xd->mb_to_right_edge < 0) {
/* slower path if the block needs border extension */
if (x0 + 2 * bs <= frame_width) {
if (right_available && bs == 4) {
memcpy(above_row, above_ref, 2 * bs * sizeof(above_row[0]));
} else {
memcpy(above_row, above_ref, bs * sizeof(above_row[0]));
vpx_memset16(above_row + bs, above_row[bs - 1], bs);
}
} else if (x0 + bs <= frame_width) {
const int r = frame_width - x0;
if (right_available && bs == 4) {
memcpy(above_row, above_ref, r * sizeof(above_row[0]));
vpx_memset16(above_row + r, above_row[r - 1],
x0 + 2 * bs - frame_width);
} else {
memcpy(above_row, above_ref, bs * sizeof(above_row[0]));
vpx_memset16(above_row + bs, above_row[bs - 1], bs);
}
} else if (x0 <= frame_width) {
const int r = frame_width - x0;
memcpy(above_row, above_ref, r * sizeof(above_row[0]));
vpx_memset16(above_row + r, above_row[r - 1],
x0 + 2 * bs - frame_width);
}
// TODO(Peter) this value should probably change for high bitdepth
above_row[-1] = left_available ? above_ref[-1] : (base + 1);
} else {
/* faster path if the block does not need extension */
if (bs == 4 && right_available && left_available) {
const_above_row = above_ref;
} else {
memcpy(above_row, above_ref, bs * sizeof(above_row[0]));
if (bs == 4 && right_available)
memcpy(above_row + bs, above_ref + bs, bs * sizeof(above_row[0]));
else
vpx_memset16(above_row + bs, above_row[bs - 1], bs);
// TODO(Peter): this value should probably change for high bitdepth
above_row[-1] = left_available ? above_ref[-1] : (base + 1);
}
}
} else {
vpx_memset16(above_row, base - 1, bs * 2);
// TODO(Peter): this value should probably change for high bitdepth
above_row[-1] = base - 1;
}
}
#endif
// predict
if (mode == DC_PRED) {
#if CONFIG_MISC_FIXES
dc_pred_high[n_left_px > 0][n_top_px > 0][tx_size](dst, dst_stride,
const_above_row,
left_col, xd->bd);
#else
dc_pred_high[left_available][up_available][tx_size](dst, dst_stride,
const_above_row,
left_col, xd->bd);
#endif
} else {
pred_high[mode][tx_size](dst, dst_stride, const_above_row, left_col,
xd->bd);
}
}
#endif // CONFIG_VP9_HIGHBITDEPTH
static void build_intra_predictors(const MACROBLOCKD *xd, const uint8_t *ref,
int ref_stride, uint8_t *dst, int dst_stride,
PREDICTION_MODE mode, TX_SIZE tx_size,
#if CONFIG_MISC_FIXES
int n_top_px, int n_topright_px,
int n_left_px, int n_bottomleft_px,
#else
int up_available, int left_available,
int right_available,
#endif
int x, int y, int plane) {
int i;
#if CONFIG_MISC_FIXES
DECLARE_ALIGNED(16, uint8_t, left_col[64]);
const uint8_t *above_ref = ref - ref_stride;
#else
DECLARE_ALIGNED(16, uint8_t, left_col[32]);
int frame_width, frame_height;
int x0, y0;
const struct macroblockd_plane *const pd = &xd->plane[plane];
#endif
DECLARE_ALIGNED(16, uint8_t, above_data[64 + 16]);
uint8_t *above_row = above_data + 16;
const uint8_t *const_above_row = above_row;
const int bs = 4 << tx_size;
// 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 CONFIG_MISC_FIXES
(void) xd;
(void) x;
(void) y;
(void) plane;
assert(n_top_px >= 0);
assert(n_topright_px >= 0);
assert(n_left_px >= 0);
assert(n_bottomleft_px >= 0);
#else
// Get current frame pointer, width and height.
if (plane == 0) {
frame_width = xd->cur_buf->y_width;
frame_height = xd->cur_buf->y_height;
} else {
frame_width = xd->cur_buf->uv_width;
frame_height = xd->cur_buf->uv_height;
}
// Get block position in current frame.
x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
#endif
// NEED_LEFT
if (extend_modes[mode] & NEED_LEFT) {
#if CONFIG_MISC_FIXES
const int need_bottom = !!(extend_modes[mode] & NEED_BOTTOMLEFT);
i = 0;
if (n_left_px > 0) {
for (; i < n_left_px; i++)
left_col[i] = ref[i * ref_stride - 1];
if (need_bottom && n_bottomleft_px > 0) {
assert(i == bs);
for (; i < bs + n_bottomleft_px; i++)
left_col[i] = ref[i * ref_stride - 1];
}
if (i < (bs << need_bottom))
memset(&left_col[i], left_col[i - 1], (bs << need_bottom) - i);
} else {
memset(left_col, 129, bs << need_bottom);
}
#else
if (left_available) {
if (xd->mb_to_bottom_edge < 0) {
/* slower path if the block needs border extension */
if (y0 + bs <= frame_height) {
for (i = 0; i < bs; ++i)
left_col[i] = ref[i * ref_stride - 1];
} else {
const int extend_bottom = frame_height - y0;
for (i = 0; i < extend_bottom; ++i)
left_col[i] = ref[i * ref_stride - 1];
for (; i < bs; ++i)
left_col[i] = ref[(extend_bottom - 1) * ref_stride - 1];
}
} else {
/* faster path if the block does not need extension */
for (i = 0; i < bs; ++i)
left_col[i] = ref[i * ref_stride - 1];
}
} else {
memset(left_col, 129, bs);
}
#endif
}
// NEED_ABOVE
if (extend_modes[mode] & NEED_ABOVE) {
#if CONFIG_MISC_FIXES
const int need_right = !!(extend_modes[mode] & NEED_ABOVERIGHT);
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 == bs);
memcpy(above_row + bs, above_ref + bs, n_topright_px);
i += n_topright_px;
}
if (i < (bs << need_right))
memset(&above_row[i], above_row[i - 1], (bs << need_right) - i);
} else {
memset(above_row, 127, bs << need_right);
}
#else
if (up_available) {
const uint8_t *above_ref = ref - ref_stride;
if (xd->mb_to_right_edge < 0) {
/* slower path if the block needs border extension */
if (x0 + bs <= frame_width) {
memcpy(above_row, above_ref, bs);
} else if (x0 <= frame_width) {
const int r = frame_width - x0;
memcpy(above_row, above_ref, r);
memset(above_row + r, above_row[r - 1], x0 + bs - frame_width);
}
} else {
/* faster path if the block does not need extension */
if (bs == 4 && right_available && left_available) {
const_above_row = above_ref;
} else {
memcpy(above_row, above_ref, bs);
}
}
above_row[-1] = left_available ? above_ref[-1] : 129;
} else {
memset(above_row, 127, bs);
above_row[-1] = 127;
}
#endif
}
#if CONFIG_MISC_FIXES
if (extend_modes[mode] & NEED_ABOVELEFT) {
above_row[-1] = n_top_px > 0 ? (n_left_px > 0 ? above_ref[-1] : 129) : 127;
}
#else
// NEED_ABOVERIGHT
if (extend_modes[mode] & NEED_ABOVERIGHT) {
if (up_available) {
const uint8_t *above_ref = ref - ref_stride;
if (xd->mb_to_right_edge < 0) {
/* slower path if the block needs border extension */
if (x0 + 2 * bs <= frame_width) {
if (right_available && bs == 4) {
memcpy(above_row, above_ref, 2 * bs);
} else {
memcpy(above_row, above_ref, bs);
memset(above_row + bs, above_row[bs - 1], bs);
}
} else if (x0 + bs <= frame_width) {
const int r = frame_width - x0;
if (right_available && bs == 4) {
memcpy(above_row, above_ref, r);
memset(above_row + r, above_row[r - 1], x0 + 2 * bs - frame_width);
} else {
memcpy(above_row, above_ref, bs);
memset(above_row + bs, above_row[bs - 1], bs);
}
} else if (x0 <= frame_width) {
const int r = frame_width - x0;
memcpy(above_row, above_ref, r);
memset(above_row + r, above_row[r - 1], x0 + 2 * bs - frame_width);
}
} else {
/* faster path if the block does not need extension */
if (bs == 4 && right_available && left_available) {
const_above_row = above_ref;
} else {
memcpy(above_row, above_ref, bs);
if (bs == 4 && right_available)
memcpy(above_row + bs, above_ref + bs, bs);
else
memset(above_row + bs, above_row[bs - 1], bs);
}
}
above_row[-1] = left_available ? above_ref[-1] : 129;
} else {
memset(above_row, 127, bs * 2);
above_row[-1] = 127;
}
}
#endif
// predict
if (mode == DC_PRED) {
#if CONFIG_MISC_FIXES
dc_pred[n_left_px > 0][n_top_px > 0][tx_size](dst, dst_stride,
const_above_row, left_col);
#else
dc_pred[left_available][up_available][tx_size](dst, dst_stride,
const_above_row, left_col);
#endif
} else {
pred[mode][tx_size](dst, dst_stride, const_above_row, left_col);
}
}
void vp10_predict_intra_block(const MACROBLOCKD *xd, int bwl_in, int bhl_in,
TX_SIZE tx_size, PREDICTION_MODE mode,
const uint8_t *ref, int ref_stride,
uint8_t *dst, int dst_stride,
int aoff, int loff, int plane) {
const int txw = (1 << tx_size);
const int have_top = loff || xd->up_available;
const int have_left = aoff || xd->left_available;
const int x = aoff * 4;
const int y = loff * 4;
#if CONFIG_MISC_FIXES
const int bw = VPXMAX(2, 1 << bwl_in);
const int bh = VPXMAX(2, 1 << bhl_in);
const int mi_row = -xd->mb_to_top_edge >> 6;
const int mi_col = -xd->mb_to_left_edge >> 6;
const BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
const struct macroblockd_plane *const pd = &xd->plane[plane];
const int right_available =
mi_col + (bw >> !pd->subsampling_x) < xd->tile.mi_col_end;
const int have_right = vp10_has_right(bsize, mi_row, mi_col,
right_available,
tx_size, loff, aoff,
pd->subsampling_x);
const int have_bottom = vp10_has_bottom(bsize, mi_row, mi_col,
xd->mb_to_bottom_edge > 0,
tx_size, loff, aoff,
pd->subsampling_y);
const int wpx = 4 * bw;
const int hpx = 4 * bh;
const int txpx = 4 * txw;
int xr = (xd->mb_to_right_edge >> (3 + pd->subsampling_x)) + (wpx - x - txpx);
int yd =
(xd->mb_to_bottom_edge >> (3 + pd->subsampling_y)) + (hpx - y - txpx);
#else
const int bw = (1 << bwl_in);
const int have_right = (aoff + txw) < bw;
#endif // CONFIG_MISC_FIXES
#if CONFIG_MISC_FIXES
#if CONFIG_VP9_HIGHBITDEPTH
if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
build_intra_predictors_high(xd, ref, ref_stride, dst, dst_stride, mode,
tx_size,
have_top ? VPXMIN(txpx, xr + txpx) : 0,
have_top && have_right ? VPXMIN(txpx, xr) : 0,
have_left ? VPXMIN(txpx, yd + txpx) : 0,
have_bottom && have_left ? VPXMIN(txpx, yd) : 0,
x, y, plane, xd->bd);
return;
}
#endif
build_intra_predictors(xd, ref, ref_stride, dst, dst_stride, mode,
tx_size,
have_top ? VPXMIN(txpx, xr + txpx) : 0,
have_top && have_right ? VPXMIN(txpx, xr) : 0,
have_left ? VPXMIN(txpx, yd + txpx) : 0,
have_bottom && have_left ? VPXMIN(txpx, yd) : 0,
x, y, plane);
#else // CONFIG_MISC_FIXES
(void) bhl_in;
#if CONFIG_VP9_HIGHBITDEPTH
if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
build_intra_predictors_high(xd, ref, ref_stride, dst, dst_stride, mode,
tx_size, have_top, have_left, have_right,
x, y, plane, xd->bd);
return;
}
#endif
build_intra_predictors(xd, ref, ref_stride, dst, dst_stride, mode, tx_size,
have_top, have_left, have_right, x, y, plane);
#endif // CONFIG_MISC_FIXES
}
void vp10_init_intra_predictors(void) {
once(vp10_init_intra_predictors_internal);
}