diff --git a/pano-split.sh b/pano-split.sh
index a8bc901..e99d4e8 100644
--- a/pano-split.sh
+++ b/pano-split.sh
@@ -7,43 +7,68 @@
 # very naive linear manner.
 
 infile="$1"
+outfile="$2"
+model="$3"
+printsize="$4"
+
+if [ -z "$5" ] ; then
+    dpi=300
+else
+    dpi="$5"
+fi
 
 # D90
-dpi=300
-cols=1852
-drows=2428
-overlap=600
-## 6x20 3-pane
-inrows=6084
-## 6x14 2-pane
-#inrows=4256
-
-#DS620
-#dpi=300
-#cols=1844
-#drows=2436
-#overlap=600
-## 6x20 3-page
-#inrows=6108
-## 6x14 2-page
-#inrows=4272
-
-#DS820
-#dpi=300
-#overlap=600
-#cols=2448
-## 8x18 2-pane
-#drows=3036
-#inrows=5472
-## 8x26 3-pane
-#drows=3036
-#inrows=7908
-## 8x22 2-pane
-#drows=3636
-#inrows=6672
-## 8x32 3-pane
-#drows=3636
-#inrows=9708
+case "${model}" in
+    mitsubishi-d90dw)
+	cols=1852
+	drows=2428
+	overlap=600
+	if [ "${printsize}" eq "6x20" ] ; then
+	    inrows=6084
+	elif [ "${printsize}" eq "6x14" ] ; then
+	    inrows=4256
+	else
+	    echo "D90 supportx 6x20 and 6x14 only"
+	    exit 1
+	fi
+    ;;
+    dnp-ds620)
+	cols=1844
+	drows=2436
+	overlap=600
+	if [ "${printsize}" eq "6x20" ] ; then
+	    inrows=6108
+	elif [ "${printsize}" eq "6x14" ] ; then
+	    inrows=4272
+	else
+	    echo "DS620 supportx 6x20 and 6x14 only"
+	    exit 1
+	fi
+	;;
+    dnp-ds820)
+	overlap=600
+	cols=2448
+	if [ "${printsize}" eq "8x18" ] ; then
+	    drows=3036
+	    inrows=5472
+	elif [ "${printsize}" eq "8x26" ] ; then
+	    drows=3036
+	    inrows=7908
+	elif [ "${printsize}" eq "8x22" ] ; then
+	    drows=3636
+	    inrows=6672
+	elif [ "${printsize}" eq "8x32" ] ; then
+	    drows=3636
+	    inrows=9708
+	else
+	    echo "DS820 supportx 8x18, 8x26, 8x22, and 8x32 only"
+	fi
+	;;
+    *)
+	echo "Unsupported model!"
+	exit 1
+	;;
+esac
 
 # For 600dpi, double everything!
 if [ ${dpi} == 600 ] ; then
@@ -108,4 +133,4 @@ done
 rm ${fadeinname} ${fadeoutname}
 
 ## Create PDF
-gm convert -density ${dpi}x${dpi} ${panels} out.pdf
+gm convert -density ${dpi}x${dpi} ${panels} ${outfile}
diff --git a/regression-gp.csv b/regression-gp.csv
index fde59c7..a6b018e 100644
--- a/regression-gp.csv
+++ b/regression-gp.csv
@@ -1,4 +1,4 @@
-#gp_printername,vid,pid,type,gp_options
+#gp_printername,vid,pid,type,gp_options[,pano_options]
 #
 # The goal here is to cover unique models within gutenprint itself.
 # All print sizes need to be covered.
diff --git a/regression-gp.pl b/regression-gp.pl
index 895b817..2f7feaf 100755
--- a/regression-gp.pl
+++ b/regression-gp.pl
@@ -48,6 +48,8 @@ my $rotor = 0;
 my $rotor_circ = 0;
 my $row = 0;
 
+my $pano_mode = 0;
+
 my $quiet = 1;
 my $proc_count = 0;
 my @children = ();
@@ -59,6 +61,7 @@ my $convert_exec = "/usr/bin/convert";
 my $pdftoraster_exec = "/usr/lib/cups/filter/pdftoraster";
 my $rastertogutenprint_exec = "/usr/lib/cups/filter/rastertogutenprint.5.3";
 my $backend_exec = "./dyesub_backend";
+my $pano_exec = "./pano-split.sh";
 
 $ENV{"STP_SUPPRESS_VERBOSE_MESSAGES"} = 1;
 $ENV{"OMP_NUM_THREADS"} = 1;
@@ -149,6 +152,13 @@ if ($proc_count > 1 && $kid > 0) {
 	    $options .= "$x ";
 	}
 
+	# See if we're in panorama mode
+	if (defined($row[5])) {
+	    $pano_mode = 1;
+	    pop(@pages_set);  # 1 "page"
+	    pop(@copies_set); # 1 copy
+	}
+
 	my $rval;
 	my @args;
 
@@ -179,22 +189,39 @@ if ($proc_count > 1 && $kid > 0) {
 	}
 
 	foreach my $pages (@pages_set) {
-	    # generate PDF.
-	    @args = ($convert_exec);
-	    for (my $i = 0 ; $i < $pages ; $i++) {
-		push(@args, $input_image);
-	    }
-	    push(@args, "-density");
-	    push(@args, "300x300");
-	    push(@args, "${work_dir}$currow-${gp_name}.pdf");
-	    if (!$quiet) {
-		print join(":", @args) . "\n";
-	    }
-	    $rval = run \@args;
-	    if (!$rval) {
-		print("***** $row[0] $row[1] $row[2] $row[3] '$row[4]' FAIL: convert: $? -- " . join(":", @args) . "\n");
-		$error++;
-		next;
+	    if ($pano_mode) {
+		# XXX generate panorama bitmap
+		my $pano_tmp = $input_image; # XXX
+
+		# Generate PDF by running through script.
+		@args = ($pano_exec, $pano_tmp, "${work_dir}$currow-${gp_name}.pdf", $gp_name, $row[5]);
+		if (!$quiet) {
+		    print join(":", @args) . "\n";
+		}
+		$rval = run \@args;
+		if (!$rval) {
+		    print("***** $row[0] $row[1] $row[2] $row[3] '$row[4]' '$row[5]' FAIL: pano-split.sh: $? -- " . join(":", @args) . "\n");
+		    $error++;
+		    next;
+		}
+	    } else {
+		# generate PDF.
+		@args = ($convert_exec);
+		for (my $i = 0 ; $i < $pages ; $i++) {
+		    push(@args, $input_image);
+		}
+		push(@args, "-density");
+		push(@args, "300x300");
+		push(@args, "${work_dir}$currow-${gp_name}.pdf");
+		if (!$quiet) {
+		    print join(":", @args) . "\n";
+		}
+		$rval = run \@args;
+		if (!$rval) {
+		    print("***** $row[0] $row[1] $row[2] $row[3] '$row[4]' FAIL: convert: $? -- " . join(":", @args) . "\n");
+		    $error++;
+		    next;
+		}
 	    }
 
 	    # Generate raster from PDF