diff options
| author | Even Rouault <even.rouault@spatialys.com> | 2022-08-11 16:41:57 +0200 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2022-08-11 16:41:57 +0200 |
| commit | e9fc08a52acaf34bdcc0e04b7f716f0a3fb2b846 (patch) | |
| tree | 92e48c1eb3caba89e03bcc73e1d2507efc4709ca /src/lib/openjp2/t2.c | |
| parent | 59fb7ea736a10d3476e35f7bbefeb0a74b939607 (diff) | |
Micro-optimization: use directly opj_bio_putbit() instead of opj_bio_write() to emit single bit
Diffstat (limited to 'src/lib/openjp2/t2.c')
| -rw-r--r-- | src/lib/openjp2/t2.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/src/lib/openjp2/t2.c b/src/lib/openjp2/t2.c index ebda0052..a61aa196 100644 --- a/src/lib/openjp2/t2.c +++ b/src/lib/openjp2/t2.c @@ -167,9 +167,9 @@ static OPJ_BOOL opj_t2_init_seg(opj_tcd_cblk_dec_t* cblk, static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n) { while (--n >= 0) { - opj_bio_write(bio, 1, 1); + opj_bio_putbit(bio, 1); } - opj_bio_write(bio, 0, 1); + opj_bio_putbit(bio, 0); } static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio) @@ -184,7 +184,7 @@ static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio) static void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n) { if (n == 1) { - opj_bio_write(bio, 0, 1); + opj_bio_putbit(bio, 0); } else if (n == 2) { opj_bio_write(bio, 2, 2); } else if (n <= 5) { @@ -801,7 +801,7 @@ static OPJ_BOOL opj_t2_encode_packet(OPJ_UINT32 tileno, } } #endif - opj_bio_write(bio, packet_empty ? 0 : 1, 1); /* Empty header bit */ + opj_bio_putbit(bio, packet_empty ? 0 : 1); /* Empty header bit */ /* Writing Packet header */ band = res->bands; @@ -849,7 +849,7 @@ static OPJ_BOOL opj_t2_encode_packet(OPJ_UINT32 tileno, if (!cblk->numpasses) { opj_tgt_encode(bio, prc->incltree, cblkno, (OPJ_INT32)(layno + 1)); } else { - opj_bio_write(bio, layer->numpasses != 0, 1); + opj_bio_putbit(bio, layer->numpasses != 0); } /* if cblk not included, go to the next cblk */ @@ -978,7 +978,9 @@ static OPJ_BOOL opj_t2_encode_packet(OPJ_UINT32 tileno, return OPJ_FALSE; } - memcpy(c, layer->data, layer->len); + if (p_t2_mode == FINAL_PASS) { + memcpy(c, layer->data, layer->len); + } cblk->numpasses += layer->numpasses; c += layer->len; length -= layer->len; |