334       png_ptr->zstream.avail_out =  in png_push_read_chunk()
337       png_ptr->zstream.next_out = png_ptr->row_buf;  in png_push_read_chunk()
843    png_ptr->zstream.next_in = buffer;  in png_process_IDAT_data()
844    png_ptr->zstream.avail_in = (uInt)buffer_length;  in png_process_IDAT_data()
849    while (png_ptr->zstream.avail_in > 0 &&  in png_process_IDAT_data()
859       if (!(png_ptr->zstream.avail_out > 0))  in png_process_IDAT_data()
861          png_ptr->zstream.avail_out =  in png_process_IDAT_data()
864          png_ptr->zstream.next_out = png_ptr->row_buf;  in png_process_IDAT_data()
874       ret = inflate(&png_ptr->zstream, Z_SYNC_FLUSH);  in png_process_IDAT_data()
896       if (png_ptr->zstream.next_out != png_ptr->row_buf)  in png_process_IDAT_data()
915 	 if (png_ptr->zstream.avail_out == 0)  in png_process_IDAT_data()
928    if (png_ptr->zstream.avail_in > 0)  in png_process_IDAT_data()
1392       png_ptr->zstream.next_in = (png_bytep )text;  in png_push_read_zTXt()
1393       png_ptr->zstream.avail_in = (uInt)(png_ptr->current_text_size -  in png_push_read_zTXt()
1395       png_ptr->zstream.next_out = png_ptr->zbuf;  in png_push_read_zTXt()
1396       png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;  in png_push_read_zTXt()
1403       while (png_ptr->zstream.avail_in)  in png_push_read_zTXt()
1405          ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH);  in png_push_read_zTXt()
1408             inflateReset(&png_ptr->zstream);  in png_push_read_zTXt()
1409             png_ptr->zstream.avail_in = 0;  in png_push_read_zTXt()
1415          if (!(png_ptr->zstream.avail_out) || ret == Z_STREAM_END)  in png_push_read_zTXt()
1421                      - png_ptr->zstream.avail_out + key_size + 1));  in png_push_read_zTXt()
1424                   png_ptr->zbuf_size - png_ptr->zstream.avail_out);  in png_push_read_zTXt()
1429                   png_ptr->zstream.avail_out;  in png_push_read_zTXt()
1440                   - png_ptr->zstream.avail_out + 1));  in png_push_read_zTXt()
1446                   png_ptr->zbuf_size - png_ptr->zstream.avail_out);  in png_push_read_zTXt()
1448                text_size += png_ptr->zbuf_size - png_ptr->zstream.avail_out;  in png_push_read_zTXt()
1453                png_ptr->zstream.next_out = png_ptr->zbuf;  in png_push_read_zTXt()
1454                png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;  in png_push_read_zTXt()
1466       inflateReset(&png_ptr->zstream);  in png_push_read_zTXt()
1467       png_ptr->zstream.avail_in = 0;  in png_push_read_zTXt()