void a78_partialhash(util::hash_collection &dest, const unsigned char *data,
unsigned long length, const char *functions)
{
if (length <= 128)
return;
dest.compute(&data[128], length - 128, functions);
}
void device_image_interface::device_compute_hash(util::hash_collection &hashes, const void *data, size_t length, const char *types) const
{
/* retrieve the partial hash func */
device_image_partialhash_func partialhash = get_partial_hash();
/* compute the hash */
if (partialhash)
partialhash(hashes, (const unsigned char*)data, length, types);
else
hashes.compute(reinterpret_cast<const UINT8 *>(data), length, types);
}
void device_image_interface::run_hash(void (*partialhash)(util::hash_collection &, const unsigned char *, unsigned long, const char *),
util::hash_collection &hashes, const char *types)
{
UINT32 size;
dynamic_buffer buf;
hashes.reset();
size = (UINT32) length();
buf.resize(size);
memset(&buf[0], 0, size);
// read the file
fseek(0, SEEK_SET);
fread(&buf[0], size);
if (partialhash)
partialhash(hashes, &buf[0], size, types);
else
hashes.compute(&buf[0], size, types);
// cleanup
fseek(0, SEEK_SET);
}