Function boxaWriteMem

deps/leptonica/src/boxbasic.c:2297–2335

! * \brief boxaWriteMem() * * \param[out] pdata data of serialized boxa; ascii * \param[out] psize size of returned data * \param[in] boxa * \return 0 if OK, 1 on error * * * Notes: * (1) Serializes a boxa in memory and puts the result in a buffer. * */

 * </pre>
 */
l_int32
boxaWriteMem(l_uint8  **pdata,
             size_t    *psize,
             BOXA      *boxa)
{
l_int32  ret;
FILE    *fp;

    PROCNAME("boxaWriteMem");

    if (pdata) *pdata = NULL;
    if (psize) *psize = 0;
    if (!pdata)
        return ERROR_INT("&data not defined", procName, 1);
    if (!psize)
        return ERROR_INT("&size not defined", procName, 1);
    if (!boxa)
        return ERROR_INT("boxa not defined", procName, 1);

#if HAVE_FMEMOPEN
    if ((fp = open_memstream((char **)pdata, psize)) == NULL)
        return ERROR_INT("stream not opened", procName, 1);
    ret = boxaWriteStream(fp, boxa);
#else
    L_INFO("work-around: writing to a temp file\n", procName);
  #ifdef _WIN32
    if ((fp = fopenWriteWinTempfile()) == NULL)
        return ERROR_INT("tmpfile stream not opened", procName, 1);
  #else
    if ((fp = tmpfile()) == NULL)
        return ERROR_INT("tmpfile stream not opened", procName, 1);
  #endif  /* _WIN32 */
    ret = boxaWriteStream(fp, boxa);
    rewind(fp);
    *pdata = l_binaryReadStream(fp, psize);
#endif  /* HAVE_FMEMOPEN */
    fclose(fp);
    return ret;
}


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