#include "opj_includes.h"
int opj_write_thix(int coff, opj_codestream_info_t cstr_info,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager)
{
OPJ_BYTE l_data_header [4];
int i;
int tileno;
opj_jp2_box_t *box;
OPJ_UINT32 len;
OPJ_OFF_T lenp;
lenp = 0;
box = (opj_jp2_box_t *)opj_calloc((size_t)(cstr_info.tw * cstr_info.th),
sizeof(opj_jp2_box_t));
if (box == NULL) {
return 0;
}
for (i = 0; i < 2 ; i++) {
if (i) {
opj_stream_seek(cio, lenp, p_manager);
}
lenp = opj_stream_tell(cio);
opj_stream_skip(cio, 4, p_manager);
opj_write_bytes(l_data_header, JPIP_THIX, 4);
opj_stream_write_data(cio, l_data_header, 4, p_manager);
opj_write_manf(i, cstr_info.tw * cstr_info.th, box, cio, p_manager);
for (tileno = 0; tileno < cstr_info.tw * cstr_info.th; tileno++) {
box[tileno].length = (OPJ_UINT32)opj_write_tilemhix(coff, cstr_info, tileno,
cio, p_manager);
box[tileno].type = JPIP_MHIX;
}
len = (OPJ_UINT32)(opj_stream_tell(cio) - lenp);
opj_stream_seek(cio, lenp, p_manager);
opj_write_bytes(l_data_header, len, 4);
opj_stream_write_data(cio, l_data_header, 4, p_manager);
opj_stream_seek(cio, lenp + len, p_manager);
}
opj_free(box);
return (int)len;
}
int opj_write_tilemhix(int coff, opj_codestream_info_t cstr_info, int tileno,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager)
{
OPJ_BYTE l_data_header [8];
int i;
opj_tile_info_t tile;
opj_tp_info_t tp;
opj_marker_info_t *marker;
OPJ_UINT32 len;
OPJ_OFF_T lenp;
lenp = opj_stream_tell(cio);
opj_stream_skip(cio, 4,
p_manager);
opj_write_bytes(l_data_header, JPIP_MHIX,
4);
opj_stream_write_data(cio, l_data_header, 4, p_manager);
tile = cstr_info.tile[tileno];
tp = tile.tp[0];
opj_write_bytes(l_data_header,
(OPJ_UINT32)(tp.tp_end_header - tp.tp_start_pos + 1),
8);
opj_stream_write_data(cio, l_data_header, 8, p_manager);
marker = cstr_info.tile[tileno].marker;
for (i = 0; i < cstr_info.tile[tileno].marknum;
i++) {
opj_write_bytes(l_data_header, marker[i].type, 2);
opj_write_bytes(l_data_header + 2, 0, 2);
opj_stream_write_data(cio, l_data_header, 4, p_manager);
opj_write_bytes(l_data_header, (OPJ_UINT32)(marker[i].pos - coff), 8);
opj_stream_write_data(cio, l_data_header, 8, p_manager);
opj_write_bytes(l_data_header, (OPJ_UINT32)marker[i].len, 2);
opj_stream_write_data(cio, l_data_header, 2, p_manager);
}
len = (OPJ_UINT32)(opj_stream_tell(cio) - lenp);
opj_stream_seek(cio, lenp, p_manager);
opj_write_bytes(l_data_header, len, 4);
opj_stream_write_data(cio, l_data_header, 4, p_manager);
opj_stream_seek(cio, lenp + len, p_manager);
return (int)len;
}