Function addChunk_tEXt

src/lodepng.cpp:5009–5023

#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS

static unsigned addChunk_tEXt(ucvector* out, const char* keyword, const char* textstring)
{
  unsigned error = 0;
  size_t i;
  ucvector text;
  ucvector_init(&text);
  for(i = 0; keyword[i] != 0; i++) ucvector_push_back(&text, (unsigned char)keyword[i]);
  if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/
  ucvector_push_back(&text, 0); /*0 termination char*/
  for(i = 0; textstring[i] != 0; i++) ucvector_push_back(&text, (unsigned char)textstring[i]);
  error = addChunk(out, "tEXt", text.data, text.size);
  ucvector_cleanup(&text);

  return error;
}

static unsigned addChunk_zTXt(ucvector* out, const char* keyword, const char* textstring,
                              LodePNGCompressSettings* zlibsettings)