static OPJ_SIZE_T jp2_io_read(void *buf, OPJ_SIZE_T size, void *io)
{
ssize_t ret;
ret = GP_IORead(io, buf, size);
if (ret == 0)
return -1;
return ret;
}
static boolean fill_input_buffer(struct jpeg_decompress_struct *cinfo)
{
int ret;
struct my_source_mgr* src = (void*)cinfo->src;
ret = GP_IORead(src->io, src->buffer, src->size);
if (ret <= 0) {
GP_WARN("Failed to fill buffer, IORead returned %i", ret);
return FALSE;
}
src->mgr.next_input_byte = src->buffer;
src->mgr.bytes_in_buffer = ret;
return TRUE;
}
static int gif_input_func(GifFileType* gif, GifByteType* bytes, int size)
{
GP_IO *io = gif->UserData;
return GP_IORead(io, bytes, size);
}