Function path_read_compressed_binary

intern/cycles/util/path.cpp:708–737

}

bool path_read_compressed_binary(const string &path, vector<uint8_t> &binary)
{
  if (!string_endswith(path, ".zst")) {
    return path_read_binary(path, binary);
  }

  vector<uint8_t> compressed;
  if (!path_read_binary(path, compressed)) {
    return false;
  }

  const size_t full_size = ZSTD_getFrameContentSize(compressed.data(), compressed.size());

  if (full_size == ZSTD_CONTENTSIZE_ERROR) {
    /* Potentially corrupted file? */
    return false;
  }
  if (full_size == ZSTD_CONTENTSIZE_UNKNOWN) {
    /* Technically this is an optional field, but we can expect it to be set for now.
     * Otherwise we'd need streaming decompression and repeated resizing of the vector. */
    return false;
  }

  binary.resize(full_size);

  const size_t err = ZSTD_decompress(
      binary.data(), binary.size(), compressed.data(), compressed.size());

  return ZSTD_isError(err) == 0;
}

bool path_read_text(const string &path, string &text)
{