Lines Matching refs:pngbuf
1369 png_bytep pngbuf = NULL;
1498 pngbuf = malloc(parm.bytes_per_line);
1632 memcpy(pngbuf + pngrow, buffer + i, parm.bytes_per_line - pngrow);
1637 pngbuf[j] = ~pngbuf[j];
1648 LSB = pngbuf[j];
1649 pngbuf[j] = pngbuf[j + 1];
1650 pngbuf[j + 1] = LSB;
1654 png_write_row(png_ptr, pngbuf);
1659 memcpy(pngbuf + pngrow, buffer + i, left);
1815 free(pngbuf);