walkero
/
openjpeg
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity

[trunk] add j2k_post_write_tile in trunk from branch v2

This commit is contained in:
Mickael Savinaud 2012-03-09 17:16:24 +00:00
parent 1ac93c3a72
commit 345b5cfc5c
1 changed files with 66 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
libopenjpeg/j2k.c
View File

@ -209,6 +209,11 @@ static opj_bool j2k_update_image_data (opj_tcd_v2_t * p_tcd, OPJ_BYTE * p_data,
static void j2k_get_tile_data (opj_tcd_v2_t * p_tcd, OPJ_BYTE * p_data); static void j2k_get_tile_data (opj_tcd_v2_t * p_tcd, OPJ_BYTE * p_data);
static opj_bool j2k_post_write_tile (opj_j2k_v2_t * p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 p_data_size,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager );
/* /*
* ----------------------------------------------------------------------- * -----------------------------------------------------------------------
@ -8769,3 +8774,64 @@ void j2k_get_tile_data (opj_tcd_v2_t * p_tcd, OPJ_BYTE * p_data)
++l_tilec; ++l_tilec;
} }
} }
/**
* Write a tile.
* @param p_j2k the jpeg2000 codec.
* @param p_stream the stream to write data to.
* @param p_manager the user event manager.
*/
opj_bool j2k_post_write_tile ( opj_j2k_v2_t * p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 p_data_size,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager )
{
opj_tcd_v2_t * l_tcd = 00;
opj_cp_v2_t * l_cp = 00;
opj_tcp_v2_t * l_tcp = 00;
OPJ_UINT32 l_nb_bytes_written;
OPJ_BYTE * l_current_data = 00;
OPJ_UINT32 l_tile_size = 0;
OPJ_UINT32 l_available_data;
/* preconditions */
assert(p_j2k->m_specific_param.m_encoder.m_encoded_tile_data);
l_tcd = p_j2k->m_tcd;
l_cp = &(p_j2k->m_cp);
l_tcp = l_cp->tcps + p_j2k->m_current_tile_number;
l_tile_size = p_j2k->m_specific_param.m_encoder.m_encoded_tile_size;
l_available_data = l_tile_size;
l_current_data = p_j2k->m_specific_param.m_encoder.m_encoded_tile_data;
if (! tcd_copy_tile_data(l_tcd,p_data,p_data_size)) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Size mismtach between tile data and sent data." );
return OPJ_FALSE;
}
l_nb_bytes_written = 0;
if (! j2k_write_first_tile_part(p_j2k,l_current_data,&l_nb_bytes_written,l_available_data,p_stream,p_manager)) {
return OPJ_FALSE;
}
l_current_data += l_nb_bytes_written;
l_available_data -= l_nb_bytes_written;
l_nb_bytes_written = 0;
if (! j2k_write_all_tile_parts(p_j2k,l_current_data,&l_nb_bytes_written,l_available_data,p_stream,p_manager)) {
return OPJ_FALSE;
}
l_available_data -= l_nb_bytes_written;
l_nb_bytes_written = l_tile_size - l_available_data;
if (opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_encoded_tile_data,l_nb_bytes_written,p_manager) != l_nb_bytes_written) {
return OPJ_FALSE;
}
++p_j2k->m_current_tile_number;
return OPJ_TRUE;
}