int gs_jpeg_mem_init (gs_memory_t *mem, j_common_ptr cinfo)
{
int code = 0;
#if SHARE_JPEG == 0
jpeg_cust_mem_data custm, *custmptr;
memset(&custm, 0x00, sizeof(custm));
if (!jpeg_cust_mem_init(&custm, (void *) mem, gs_j_mem_init, gs_j_mem_term, NULL,
gs_j_mem_alloc, gs_j_mem_free,
gs_j_mem_alloc, gs_j_mem_free, NULL)) {
code = gs_note_error(gs_error_VMerror);
}
if (code == 0) {
custmptr = (jpeg_cust_mem_data *)gs_alloc_bytes(mem->non_gc_memory, sizeof(custm) + sizeof(void *), "JPEG custom memory descriptor");
if (!custmptr) {
code = gs_note_error(gs_error_VMerror);
}
else {
memcpy(custmptr, &custm, sizeof(custm));
cinfo->client_data = custmptr;
}
}
#endif /* SHAREJPEG == 0 */
return code;
}
static void
fz_dct_mem_init(struct jpeg_decompress_struct *cinfo, fz_dctd *state)
{
jpeg_cust_mem_data *custmptr;
custmptr = fz_malloc_struct(state->ctx, jpeg_cust_mem_data);
if (!jpeg_cust_mem_init(custmptr, (void *) state, NULL, NULL, NULL,
fz_dct_mem_alloc, fz_dct_mem_free,
fz_dct_mem_alloc, fz_dct_mem_free, NULL))
{
fz_free(state->ctx, custmptr);
fz_throw(state->ctx, FZ_ERROR_GENERIC, "cannot initialize custom JPEG memory handler");
}
cinfo->client_data = custmptr;
}
