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Moving mi configuration loop from vp9_read_mode_info to set_offsets.

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set_offsets() is a right place to configure all mi-related pointers.

Change-Id: I7d2fda72de5fc27e86c6589543b41fa044681dbf
This commit is contained in:
Dmitry Kovalev 2013-12-12 19:56:30 -08:00
parent c2634188ce
commit e121bf4c1d
2 changed files with 25 additions and 36 deletions
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16
vp9/decoder/vp9_decodeframe.c
View File

@ -348,23 +348,27 @@ static void reconstruct_inter_block(int plane, int block,
static void set_offsets(VP9_COMMON *const cm, MACROBLOCKD *const xd,
const TileInfo *const tile,
BLOCK_SIZE bsize, int mi_row, int mi_col) {
const int bh = num_8x8_blocks_high_lookup[bsize];
const int bw = num_8x8_blocks_wide_lookup[bsize];
const int bh = num_8x8_blocks_high_lookup[bsize];
const int x_mis = MIN(bw, cm->mi_cols - mi_col);
const int y_mis = MIN(bh, cm->mi_rows - mi_row);
const int offset = mi_row * cm->mode_info_stride + mi_col;
const int tile_offset = tile->mi_row_start * cm->mode_info_stride +
tile->mi_col_start;
int x, y;
xd->mi_8x8 = cm->mi_grid_visible + offset;
xd->prev_mi_8x8 = cm->prev_mi_grid_visible + offset;
// we are using the mode info context stream here
xd->mi_8x8[0] = xd->mi_stream + offset - tile_offset;
xd->mi_8x8[0]->mbmi.sb_type = bsize;
// Special case: if prev_mi is NULL, the previous mode info context
// cannot be used.
xd->last_mi = cm->prev_mi ? xd->prev_mi_8x8[0] : NULL;
xd->mi_8x8[0] = xd->mi_stream + offset - tile_offset;
xd->mi_8x8[0]->mbmi.sb_type = bsize;
for (y = 0; y < y_mis; ++y)
for (x = !y; x < x_mis; ++x)
xd->mi_8x8[y * cm->mode_info_stride + x] = xd->mi_8x8[0];
set_skip_context(xd, xd->above_context, xd->left_context, mi_row, mi_col);
// Distance of Mb to the various image edges. These are specified to 8th pel

45
vp9/decoder/vp9_decodemv.c
View File

@ -162,12 +162,12 @@ static int read_skip_coeff(VP9_COMMON *cm, const MACROBLOCKD *xd,
static void read_intra_frame_mode_info(VP9_COMMON *const cm,
MACROBLOCKD *const xd,
MODE_INFO *const m,
int mi_row, int mi_col, vp9_reader *r) {
MB_MODE_INFO *const mbmi = &m->mbmi;
const BLOCK_SIZE bsize = mbmi->sb_type;
MODE_INFO *const mi = xd->mi_8x8[0];
MB_MODE_INFO *const mbmi = &mi->mbmi;
const MODE_INFO *above_mi = xd->mi_8x8[-cm->mode_info_stride];
const MODE_INFO *left_mi = xd->left_available ? xd->mi_8x8[-1] : NULL;
const BLOCK_SIZE bsize = mbmi->sb_type;
mbmi->segment_id = read_intra_segment_id(cm, xd, mi_row, mi_col, r);
mbmi->skip_coeff = read_skip_coeff(cm, xd, mbmi->segment_id, r);
@ -176,8 +176,8 @@ static void read_intra_frame_mode_info(VP9_COMMON *const cm,
mbmi->ref_frame[1] = NONE;
if (bsize >= BLOCK_8X8) {
const MB_PREDICTION_MODE A = above_block_mode(m, above_mi, 0);
const MB_PREDICTION_MODE L = left_block_mode(m, left_mi, 0);
const MB_PREDICTION_MODE A = above_block_mode(mi, above_mi, 0);
const MB_PREDICTION_MODE L = left_block_mode(mi, left_mi, 0);
mbmi->mode = read_intra_mode(r, vp9_kf_y_mode_prob[A][L]);
} else {
// Only 4x4, 4x8, 8x4 blocks
@ -188,19 +188,19 @@ static void read_intra_frame_mode_info(VP9_COMMON *const cm,
for (idy = 0; idy < 2; idy += num_4x4_h) {
for (idx = 0; idx < 2; idx += num_4x4_w) {
const int ib = idy * 2 + idx;
const MB_PREDICTION_MODE A = above_block_mode(m, above_mi, ib);
const MB_PREDICTION_MODE L = left_block_mode(m, left_mi, ib);
const MB_PREDICTION_MODE A = above_block_mode(mi, above_mi, ib);
const MB_PREDICTION_MODE L = left_block_mode(mi, left_mi, ib);
const MB_PREDICTION_MODE b_mode = read_intra_mode(r,
vp9_kf_y_mode_prob[A][L]);
m->bmi[ib].as_mode = b_mode;
mi->bmi[ib].as_mode = b_mode;
if (num_4x4_h == 2)
m->bmi[ib + 2].as_mode = b_mode;
mi->bmi[ib + 2].as_mode = b_mode;
if (num_4x4_w == 2)
m->bmi[ib + 1].as_mode = b_mode;
mi->bmi[ib + 1].as_mode = b_mode;
}
}
mbmi->mode = m->bmi[3].as_mode;
mbmi->mode = mi->bmi[3].as_mode;
}
mbmi->uv_mode = read_intra_mode(r, vp9_kf_uv_mode_prob[mbmi->mode]);
@ -509,8 +509,8 @@ static void read_inter_block_mode_info(VP9_COMMON *const cm,
static void read_inter_frame_mode_info(VP9_COMMON *const cm,
MACROBLOCKD *const xd,
const TileInfo *const tile,
MODE_INFO *const mi,
int mi_row, int mi_col, vp9_reader *r) {
MODE_INFO *const mi = xd->mi_8x8[0];
MB_MODE_INFO *const mbmi = &mi->mbmi;
int inter_block;
@ -528,25 +528,10 @@ static void read_inter_frame_mode_info(VP9_COMMON *const cm,
read_intra_block_mode_info(cm, mi, r);
}
void vp9_read_mode_info(VP9_COMMON *cm, MACROBLOCKD *xd,
const TileInfo *const tile,
void vp9_read_mode_info(VP9_COMMON *cm, MACROBLOCKD *xd, const TileInfo *tile,
int mi_row, int mi_col, vp9_reader *r) {
MODE_INFO *const mi = xd->mi_8x8[0];
const BLOCK_SIZE bsize = mi->mbmi.sb_type;
const int bw = num_8x8_blocks_wide_lookup[bsize];
const int bh = num_8x8_blocks_high_lookup[bsize];
const int y_mis = MIN(bh, cm->mi_rows - mi_row);
const int x_mis = MIN(bw, cm->mi_cols - mi_col);
int x, y, z;
if (frame_is_intra_only(cm))
read_intra_frame_mode_info(cm, xd, mi, mi_row, mi_col, r);
read_intra_frame_mode_info(cm, xd, mi_row, mi_col, r);
else
read_inter_frame_mode_info(cm, xd, tile, mi, mi_row, mi_col, r);
for (y = 0, z = 0; y < y_mis; y++, z += cm->mode_info_stride) {
for (x = !y; x < x_mis; x++) {
xd->mi_8x8[z + x] = mi;
}
}
read_inter_frame_mode_info(cm, xd, tile, mi_row, mi_col, r);
}