add --transform none to reset to identity

1 files changed, 17 insertions, 13 deletions

diff --git a/xrandr.c b/xrandr.c
index d5c0bc8..e334d13 100644
--- a/xrandr.c
+++ b/xrandr.c
@@ -2105,20 +2105,24 @@ main (int argc, char **argv)
 	    double  transform[3][3];
 	    int	    k, l;
 	    if (++i>=argc) usage ();
-	    if (sscanf(argv[i], "%lf,%lf,%lf,%lf,%lf,%lf,%lf,%lf,%lf",
-		       &transform[0][0],&transform[0][1],&transform[0][2],
-		       &transform[1][0],&transform[1][1],&transform[1][2],
-		       &transform[2][0],&transform[2][1],&transform[2][2])
-		!= 9)
-		usage ();
 	    init_transform (&output->transform);
-	    for (k = 0; k < 3; k++)
-		for (l = 0; l < 3; l++) {
-		    output->transform.transform.matrix[k][l] = XDoubleToFixed (transform[k][l]);
-		}
-	    output->transform.filter = "bilinear";
-	    output->transform.nparams = 0;
-	    output->transform.params = NULL;
+	    if (strcmp (argv[i], "none") != 0)
+	    {
+		if (sscanf(argv[i], "%lf,%lf,%lf,%lf,%lf,%lf,%lf,%lf,%lf",
+			   &transform[0][0],&transform[0][1],&transform[0][2],
+			   &transform[1][0],&transform[1][1],&transform[1][2],
+			   &transform[2][0],&transform[2][1],&transform[2][2])
+		    != 9)
+		    usage ();
+		init_transform (&output->transform);
+		for (k = 0; k < 3; k++)
+		    for (l = 0; l < 3; l++) {
+			output->transform.transform.matrix[k][l] = XDoubleToFixed (transform[k][l]);
+		    }
+		output->transform.filter = "bilinear";
+		output->transform.nparams = 0;
+		output->transform.params = NULL;
+	    }
 	    output->changes |= changes_transform;
 	    continue;
 	}