490 fill_scans (jpeg_scan_info * scanptr, int ncomps,  in fill_scans()  argument
496   for (ci = 0; ci < ncomps; ci++) {  in fill_scans()
509 fill_dc_scans (jpeg_scan_info * scanptr, int ncomps, int Ah, int Al)  in fill_dc_scans()  argument
514   if (ncomps <= MAX_COMPS_IN_SCAN) {  in fill_dc_scans()
516     scanptr->comps_in_scan = ncomps;  in fill_dc_scans()
517     for (ci = 0; ci < ncomps; ci++)  in fill_dc_scans()
525     scanptr = fill_scans(scanptr, ncomps, 0, 0, Ah, Al);  in fill_dc_scans()
539   int ncomps = cinfo->num_components;  in jpeg_simple_progression()  local
548   if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) {  in jpeg_simple_progression()
553     if (ncomps > MAX_COMPS_IN_SCAN)  in jpeg_simple_progression()
554       nscans = 6 * ncomps;	/* 2 DC + 4 AC scans per component */  in jpeg_simple_progression()
556       nscans = 2 + 4 * ncomps;	/* 2 DC scans; 4 AC scans per component */  in jpeg_simple_progression()
576   if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) {  in jpeg_simple_progression()
579     scanptr = fill_dc_scans(scanptr, ncomps, 0, 1);  in jpeg_simple_progression()
590     scanptr = fill_dc_scans(scanptr, ncomps, 1, 0);  in jpeg_simple_progression()
599     scanptr = fill_dc_scans(scanptr, ncomps, 0, 1);  in jpeg_simple_progression()
600     scanptr = fill_scans(scanptr, ncomps, 1, 5, 0, 2);  in jpeg_simple_progression()
601     scanptr = fill_scans(scanptr, ncomps, 6, 63, 0, 2);  in jpeg_simple_progression()
603     scanptr = fill_scans(scanptr, ncomps, 1, 63, 2, 1);  in jpeg_simple_progression()
605     scanptr = fill_dc_scans(scanptr, ncomps, 1, 0);  in jpeg_simple_progression()
606     scanptr = fill_scans(scanptr, ncomps, 1, 63, 1, 0);  in jpeg_simple_progression()