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Using local variable for token_cache. 

The difference with the old code is that originally the whole token_cache
was initialized with zeros at the beginning of decode_coefs() function.
Now we set several zero values explicitly with "token_cache[scan[c]] = 0".

Change-Id: I88cc5031f01d13012d1a4491739c36cb44f9401e
This commit is contained in:
Dmitry Kovalev 2013-12-02 15:44:26 -08:00
Родитель e7922a5b70
Коммит 5ab920d2ae
4 изменённых файлов: 30 добавлений и 60 удалений
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75
vp9/decoder/vp9_decodeframe.c
Просмотреть файл

@ -41,7 +41,6 @@ typedef struct TileWorkerData {
VP9_COMMON *cm;
vp9_reader bit_reader;
DECLARE_ALIGNED(16, MACROBLOCKD, xd);
DECLARE_ALIGNED(16, unsigned char, token_cache[1024]);
DECLARE_ALIGNED(16, int16_t, dqcoeff[MAX_MB_PLANE][64 * 64]);
DECLARE_ALIGNED(16, uint16_t, eobs[MAX_MB_PLANE][256]);
} TileWorkerData;
@ -241,8 +240,7 @@ static void alloc_tile_storage(VP9D_COMP *pbi, int tile_rows, int tile_cols) {
}
static void inverse_transform_block(MACROBLOCKD* xd, int plane, int block,
TX_SIZE tx_size, uint8_t *dst, int stride,
uint8_t *token_cache) {
TX_SIZE tx_size, uint8_t *dst, int stride) {
struct macroblockd_plane *const pd = &xd->plane[plane];
const int eob = pd->eobs[block];
if (eob > 0) {
@ -275,20 +273,13 @@ static void inverse_transform_block(MACROBLOCKD* xd, int plane, int block,
if (eob == 1) {
vpx_memset(dqcoeff, 0, 2 * sizeof(dqcoeff[0]));
vpx_memset(token_cache, 0, 2 * sizeof(token_cache[0]));
} else {
if (tx_type == DCT_DCT && tx_size <= TX_16X16 && eob <= 10) {
if (tx_type == DCT_DCT && tx_size <= TX_16X16 && eob <= 10)
vpx_memset(dqcoeff, 0, 4 * (4 << tx_size) * sizeof(dqcoeff[0]));
vpx_memset(token_cache, 0,
4 * (4 << tx_size) * sizeof(token_cache[0]));
} else if (tx_size == TX_32X32 && eob <= 34) {
else if (tx_size == TX_32X32 && eob <= 34)
vpx_memset(dqcoeff, 0, 256 * sizeof(dqcoeff[0]));
vpx_memset(token_cache, 0, 256 * sizeof(token_cache[0]));
} else {
else
vpx_memset(dqcoeff, 0, (16 << (tx_size << 1)) * sizeof(dqcoeff[0]));
vpx_memset(token_cache, 0,
(16 << (tx_size << 1)) * sizeof(token_cache[0]));
}
}
}
}
@ -297,7 +288,6 @@ struct intra_args {
VP9_COMMON *cm;
MACROBLOCKD *xd;
vp9_reader *r;
uint8_t *token_cache;
};
static void predict_and_reconstruct_intra_block(int plane, int block,
@ -326,9 +316,8 @@ static void predict_and_reconstruct_intra_block(int plane, int block,
if (!mi->mbmi.skip_coeff) {
vp9_decode_block_tokens(cm, xd, plane, block, plane_bsize, x, y, tx_size,
args->r, args->token_cache);
inverse_transform_block(xd, plane, block, tx_size, dst, pd->dst.stride,
args->token_cache);
args->r);
inverse_transform_block(xd, plane, block, tx_size, dst, pd->dst.stride);
}
}
@ -337,7 +326,6 @@ struct inter_args {
MACROBLOCKD *xd;
vp9_reader *r;
int *eobtotal;
uint8_t *token_cache;
};
static void reconstruct_inter_block(int plane, int block,
@ -351,10 +339,10 @@ static void reconstruct_inter_block(int plane, int block,
txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &x, &y);
*args->eobtotal += vp9_decode_block_tokens(cm, xd, plane, block,
plane_bsize, x, y, tx_size,
args->r, args->token_cache);
args->r);
inverse_transform_block(xd, plane, block, tx_size,
&pd->dst.buf[4 * y * pd->dst.stride + 4 * x],
pd->dst.stride, args->token_cache);
pd->dst.stride);
}
static void set_offsets(VP9_COMMON *const cm, MACROBLOCKD *const xd,
@ -404,8 +392,7 @@ static void set_ref(VP9_COMMON *const cm, MACROBLOCKD *const xd,
static void decode_modes_b(VP9_COMMON *const cm, MACROBLOCKD *const xd,
const TileInfo *const tile,
int mi_row, int mi_col,
vp9_reader *r, BLOCK_SIZE bsize,
uint8_t *token_cache) {
vp9_reader *r, BLOCK_SIZE bsize) {
const int less8x8 = bsize < BLOCK_8X8;
MB_MODE_INFO *mbmi;
@ -427,9 +414,7 @@ static void decode_modes_b(VP9_COMMON *const cm, MACROBLOCKD *const xd,
}
if (!is_inter_block(mbmi)) {
struct intra_args arg = {
cm, xd, r, token_cache
};
struct intra_args arg = { cm, xd, r };
foreach_transformed_block(xd, bsize, predict_and_reconstruct_intra_block,
&arg);
} else {
@ -447,9 +432,7 @@ static void decode_modes_b(VP9_COMMON *const cm, MACROBLOCKD *const xd,
// Reconstruction
if (!mbmi->skip_coeff) {
int eobtotal = 0;
struct inter_args arg = {
cm, xd, r, &eobtotal, token_cache
};
struct inter_args arg = { cm, xd, r, &eobtotal };
foreach_transformed_block(xd, bsize, reconstruct_inter_block, &arg);
if (!less8x8 && eobtotal == 0)
mbmi->skip_coeff = 1; // skip loopfilter
@ -488,8 +471,7 @@ static PARTITION_TYPE read_partition(VP9_COMMON *cm, MACROBLOCKD *xd, int hbs,
static void decode_modes_sb(VP9_COMMON *const cm, MACROBLOCKD *const xd,
const TileInfo *const tile,
int mi_row, int mi_col,
vp9_reader* r, BLOCK_SIZE bsize,
uint8_t *token_cache) {
vp9_reader* r, BLOCK_SIZE bsize) {
const int hbs = num_8x8_blocks_wide_lookup[bsize] / 2;
PARTITION_TYPE partition;
BLOCK_SIZE subsize;
@ -500,33 +482,27 @@ static void decode_modes_sb(VP9_COMMON *const cm, MACROBLOCKD *const xd,
partition = read_partition(cm, xd, hbs, mi_row, mi_col, bsize, r);
subsize = get_subsize(bsize, partition);
if (subsize < BLOCK_8X8) {
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize, token_cache);
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize);
} else {
switch (partition) {
case PARTITION_NONE:
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize, token_cache);
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize);
break;
case PARTITION_HORZ:
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize, token_cache);
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize);
if (mi_row + hbs < cm->mi_rows)
decode_modes_b(cm, xd, tile, mi_row + hbs, mi_col, r, subsize,
token_cache);
decode_modes_b(cm, xd, tile, mi_row + hbs, mi_col, r, subsize);
break;
case PARTITION_VERT:
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize, token_cache);
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize);
if (mi_col + hbs < cm->mi_cols)
decode_modes_b(cm, xd, tile, mi_row, mi_col + hbs, r, subsize,
token_cache);
decode_modes_b(cm, xd, tile, mi_row, mi_col + hbs, r, subsize);
break;
case PARTITION_SPLIT:
decode_modes_sb(cm, xd, tile, mi_row, mi_col, r, subsize,
token_cache);
decode_modes_sb(cm, xd, tile, mi_row, mi_col + hbs, r, subsize,
token_cache);
decode_modes_sb(cm, xd, tile, mi_row + hbs, mi_col, r, subsize,
token_cache);
decode_modes_sb(cm, xd, tile, mi_row + hbs, mi_col + hbs, r, subsize,
token_cache);
decode_modes_sb(cm, xd, tile, mi_row, mi_col, r, subsize);
decode_modes_sb(cm, xd, tile, mi_row, mi_col + hbs, r, subsize);
decode_modes_sb(cm, xd, tile, mi_row + hbs, mi_col, r, subsize);
decode_modes_sb(cm, xd, tile, mi_row + hbs, mi_col + hbs, r, subsize);
break;
default:
assert(!"Invalid partition type");
@ -809,8 +785,7 @@ static void decode_tile(VP9D_COMP *pbi, const TileInfo *const tile,
vp9_zero(xd->left_seg_context);
for (mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
mi_col += MI_BLOCK_SIZE) {
decode_modes_sb(cm, xd, tile, mi_row, mi_col, r, BLOCK_64X64,
pbi->token_cache);
decode_modes_sb(cm, xd, tile, mi_row, mi_col, r, BLOCK_64X64);
}
if (pbi->do_loopfilter_inline) {
@ -954,7 +929,6 @@ static void setup_tile_macroblockd(TileWorkerData *const tile_data) {
pd[i].dqcoeff = tile_data->dqcoeff[i];
pd[i].eobs = tile_data->eobs[i];
vpx_memset(xd->plane[i].dqcoeff, 0, 64 * 64 * sizeof(int16_t));
vpx_memset(tile_data->token_cache, 0, sizeof(tile_data->token_cache));
}
}
@ -970,8 +944,7 @@ static int tile_worker_hook(void *arg1, void *arg2) {
for (mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
mi_col += MI_BLOCK_SIZE) {
decode_modes_sb(tile_data->cm, &tile_data->xd, tile,
mi_row, mi_col, &tile_data->bit_reader, BLOCK_64X64,
tile_data->token_cache);
mi_row, mi_col, &tile_data->bit_reader, BLOCK_64X64);
}
}
return !tile_data->xd.corrupted;

10
vp9/decoder/vp9_detokenize.c
Просмотреть файл

@ -94,8 +94,7 @@ static const int token_to_counttoken[MAX_ENTROPY_TOKENS] = {
static int decode_coefs(VP9_COMMON *cm, const MACROBLOCKD *xd,
vp9_reader *r, int block_idx,
PLANE_TYPE type, int max_eob, int16_t *dqcoeff_ptr,
TX_SIZE tx_size, const int16_t *dq, int pt,
uint8_t *token_cache) {
TX_SIZE tx_size, const int16_t *dq, int pt) {
const FRAME_CONTEXT *const fc = &cm->fc;
FRAME_COUNTS *const counts = &cm->counts;
const int ref = is_inter_block(&xd->mi_8x8[0]->mbmi);
@ -107,6 +106,7 @@ static int decode_coefs(VP9_COMMON *cm, const MACROBLOCKD *xd,
counts->coef[tx_size][type][ref];
unsigned int (*eob_branch_count)[PREV_COEF_CONTEXTS] =
counts->eob_branch[tx_size][type][ref];
uint8_t token_cache[32 * 32];
const uint8_t *cat6;
const uint8_t *band_translate = get_band_translate(tx_size);
const int dq_shift = (tx_size == TX_32X32);
@ -131,6 +131,7 @@ static int decode_coefs(VP9_COMMON *cm, const MACROBLOCKD *xd,
while (!vp9_read(r, prob[ZERO_CONTEXT_NODE])) {
INCREMENT_COUNT(ZERO_TOKEN);
dqv = dq[1];
token_cache[scan[c]] = 0;
++c;
if (c >= max_eob)
return c; // zero tokens at the end (no eob token)
@ -208,8 +209,7 @@ static int decode_coefs(VP9_COMMON *cm, const MACROBLOCKD *xd,
int vp9_decode_block_tokens(VP9_COMMON *cm, MACROBLOCKD *xd,
int plane, int block, BLOCK_SIZE plane_bsize,
int x, int y, TX_SIZE tx_size, vp9_reader *r,
uint8_t *token_cache) {
int x, int y, TX_SIZE tx_size, vp9_reader *r) {
struct macroblockd_plane *const pd = &xd->plane[plane];
const int seg_eob = get_tx_eob(&cm->seg, xd->mi_8x8[0]->mbmi.segment_id,
tx_size);
@ -217,7 +217,7 @@ int vp9_decode_block_tokens(VP9_COMMON *cm, MACROBLOCKD *xd,
pd->left_context + y);
const int eob = decode_coefs(cm, xd, r, block, pd->plane_type, seg_eob,
BLOCK_OFFSET(pd->dqcoeff, block), tx_size,
pd->dequant, pt, token_cache);
pd->dequant, pt);
set_contexts(xd, pd, plane_bsize, tx_size, eob > 0, x, y);
pd->eobs[block] = eob;
return eob;

3
vp9/decoder/vp9_detokenize.h
Просмотреть файл

@ -17,7 +17,6 @@
int vp9_decode_block_tokens(VP9_COMMON *cm, MACROBLOCKD *xd,
int plane, int block, BLOCK_SIZE plane_bsize,
int x, int y, TX_SIZE tx_size, vp9_reader *r,
uint8_t *token_cache);
int x, int y, TX_SIZE tx_size, vp9_reader *r);
#endif // VP9_DECODER_VP9_DETOKENIZE_H_

2
vp9/decoder/vp9_onyxd_int.h
Просмотреть файл

@ -52,8 +52,6 @@ typedef struct VP9Decompressor {
ENTROPY_CONTEXT *above_context[MAX_MB_PLANE];
PARTITION_CONTEXT *above_seg_context;
DECLARE_ALIGNED(16, uint8_t, token_cache[1024]);
} VP9D_COMP;
#endif // VP9_DECODER_VP9_ONYXD_INT_H_