763     png_const_textp text_ptr, int num_text)  in png_set_text()  argument
766    ret = png_set_text_2(png_ptr, info_ptr, text_ptr, num_text);  in png_set_text()
774     png_const_textp text_ptr, int num_text)  in png_set_text_2()  argument
781    if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL)  in png_set_text_2()
840       if (text_ptr[i].key == NULL)  in png_set_text_2()
843       if (text_ptr[i].compression < PNG_TEXT_COMPRESSION_NONE ||  in png_set_text_2()
844           text_ptr[i].compression >= PNG_TEXT_COMPRESSION_LAST)  in png_set_text_2()
851       key_len = strlen(text_ptr[i].key);  in png_set_text_2()
853       if (text_ptr[i].compression <= 0)  in png_set_text_2()
864          if (text_ptr[i].lang != NULL)  in png_set_text_2()
865             lang_len = strlen(text_ptr[i].lang);  in png_set_text_2()
870          if (text_ptr[i].lang_key != NULL)  in png_set_text_2()
871             lang_key_len = strlen(text_ptr[i].lang_key);  in png_set_text_2()
884       if (text_ptr[i].text == NULL || text_ptr[i].text[0] == '\0')  in png_set_text_2()
888          if (text_ptr[i].compression > 0)  in png_set_text_2()
898          text_length = strlen(text_ptr[i].text);  in png_set_text_2()
899          textp->compression = text_ptr[i].compression;  in png_set_text_2()
918       memcpy(textp->key, text_ptr[i].key, key_len);  in png_set_text_2()
921       if (text_ptr[i].compression > 0)  in png_set_text_2()
924          memcpy(textp->lang, text_ptr[i].lang, lang_len);  in png_set_text_2()
927          memcpy(textp->lang_key, text_ptr[i].lang_key, lang_key_len);  in png_set_text_2()
940          memcpy(textp->text, text_ptr[i].text, text_length);  in png_set_text_2()