int LCUI_InitImageReader(LCUI_ImageReader reader)
{
int ret, i;
for (i = 0; i < n_interfaces; ++i) {
reader->fn_rewind(reader->stream_data);
ret = LCUI_InitImageReaderByType(reader, i);
if (ret == 0) {
return 0;
}
LCUI_DestroyImageReader(reader);
}
reader->fn_rewind(reader->stream_data);
reader->type = LCUI_UNKNOWN_READER;
return -ENOENT;
}
static int LCUI_InitImageReaderByType(LCUI_ImageReader reader, int type)
{
int ret;
reader->fn_rewind(reader->stream_data);
ret = interfaces[type].init(reader);
if (ret != 0) {
return -2;
}
if (LCUI_SetImageReaderJump(reader)) {
return -2;
}
return interfaces[type].read_header(reader);
}