void
test_mgr::initialize_jrnls()
{
_ji_list.clear();
for (unsigned i=0; i<_args.num_jrnls; i++)
{
std::ostringstream jid;
jid << std::hex << std::setfill('0');
jid << "test_" << std::setw(4) << std::hex << i;
std::ostringstream jdir;
jdir << _args.journal_dir << "/" << jid.str();
jrnl_init_params::shared_ptr jpp(new jrnl_init_params(jid.str(), jdir.str(), jid.str()));
jrnl_instance::shared_ptr jip(new jrnl_instance(jpp));
_ji_list.push_back(jip);
}
}
int
jpeg_info(jpeginfo_t *ji, jpegreader_t *reader, void *handle, int flags,
const uint8_t *buf, size_t len, char *errbuf, size_t errlen)
{
uint16_t marker;
uint16_t mlen;
void *loadbuf = NULL;
int offset = 0;
jiparser_t *jip;
memset(ji, 0, sizeof(jpeginfo_t));
ji->ji_width = -1;
ji->ji_height = -1;
jpegpriv_t jp = {0};
jp.jp_readhandle = handle;
jp.jp_reader = reader;
if(len < 2 || buf[0] != 0xff || buf[1] != 0xd8) {
snprintf(errbuf, errlen, "Invalid JPEG header");
return -1;
}
len -= 2;
buf += 2;
offset += 2;
while(len >= 4) {
marker = (buf[0] << 8) | buf[1];
mlen = (buf[2] << 8) | buf[3];
len -= 4;
buf += 4;
offset += 4;
mlen -= 2;
jip = NULL;
switch(marker) {
case 0xffda: // SOS
free(loadbuf);
free(jp.jp_readbuf);
return 0;
case 0xffc0: // SOF0
case 0xffc1: // SOF1
case 0xffc2: // SOF2
case 0xffc3: // SOF3
if(flags & JPEG_INFO_DIMENSIONS)
jip = parse_sof;
break;
case 0xffe1: // APP1
if(flags & (JPEG_INFO_THUMBNAIL | JPEG_INFO_ORIENTATION |
JPEG_INFO_METADATA))
jip = parse_app1;
break;
}
if(jip) {
int ll = mlen + 4;
free(loadbuf);
buf = loadbuf = malloc(ll);
if(jpeg_read(&jp, loadbuf, offset, ll) != ll) {
snprintf(errbuf, errlen, "Read error");
break;
}
if(jip(ji, loadbuf, ll - 4, flags)) {
snprintf(errbuf, errlen, "Error while processing section 0x%04x",
marker);
break;
}
// Continue with bytes after section
buf = loadbuf + mlen;
len = 4;
offset += mlen;
} else {
free(loadbuf);
buf = loadbuf = malloc(4);
offset += mlen;
if(jpeg_read(&jp, loadbuf, offset, 4) != 4) {
snprintf(errbuf, errlen, "Read error");
break;
}
len = 4;
}
}
free(loadbuf);
free(jp.jp_readbuf);
return -1;
}
