uint8_vec xor_vec(uint8_vec const &a, uint8_vec const &b) {
uint8_vec v;
v.reserve(std::min(a.size(), b.size()));
for (uint8_vec::const_iterator i = a.begin(), j = b.begin(); i != a.end() && j != b.end(); ++i, ++j) {
v.push_back(*i ^ *j);
}
return v;
}
std::string codes_to_hex(uint8_vec const &v) {
std::stringstream ss;
ss << std::hex;
for (uint8_vec::const_iterator it = v.begin(); it != v.end(); ++it) {
ss << std::setw(2) << std::setfill('0') << (int) *it;
}
return ss.str();
}
bool ktx_texture::get_key_value_data(const char *pKey, uint8_vec &data) const
{
const uint8_vec *p = find_key(pKey);
if (!p)
{
data.resize(0);
return false;
}
const uint32_t ofs = vogl_strlen(pKey) + 1;
const uint8_t *pValue = p->get_ptr() + ofs;
const uint32_t n = p->size() - ofs;
data.resize(n);
if (n)
memcpy(data.get_ptr(), pValue, n);
return true;
}
bool file_utils::read_file_to_vec(const char *pPath, uint8_vec &data)
{
size_t data_size;
void *p = read_file_to_heap(pPath, data_size);
if (!p)
return false;
if (static_cast<uint>(data_size) != data_size)
return false;
if (!data.try_resize(static_cast<uint>(data_size)))
return false;
if (!data.grant_ownership(static_cast<uint8 *>(p), static_cast<uint>(data_size), static_cast<uint>(data_size)))
{
vogl_free(p);
return false;
}
return true;
}
bool file_utils::write_vec_to_file(const char *pPath, const uint8_vec &data)
{
return write_buf_to_file(pPath, data.get_ptr(), data.size());
}
