reset rank demand hint, enable seq for morph

jcupitt · jcupitt · commit 11e02daa66c2 · 2025-07-16T12:24:44.000+01:00
I'd left the demand hint for rank as smalltile from some debugging. I've
set the whole of morphology to sequential mode, which should be safe,
cf. the convolution base class.
diff --git a/libvips/morphology/morphology.c b/libvips/morphology/morphology.c
@@ -57,13 +57,16 @@ vips_morphology_class_init(VipsMorphologyClass *class)
 {
 	GObjectClass *gobject_class = G_OBJECT_CLASS(class);
 	VipsObjectClass *vobject_class = VIPS_OBJECT_CLASS(class);
+	VipsOperationClass *operation_class = VIPS_OPERATION_CLASS(class);
 
 	gobject_class->set_property = vips_object_set_property;
 	gobject_class->get_property = vips_object_get_property;
 
 	vobject_class->nickname = "morphology";
 	vobject_class->description = _("morphological operations");
 
+	operation_class->flags = VIPS_OPERATION_SEQUENTIAL;
+
 	/* Inputs set by subclassess.
 	 */
 
diff --git a/libvips/morphology/rank.c b/libvips/morphology/rank.c
@@ -517,7 +517,7 @@ vips_rank_build(VipsObject *object)
 	 * too many recalculations on overlaps.
 	 */
 	if (vips_image_pipelinev(rank->out,
-			VIPS_DEMAND_STYLE_SMALLTILE, in, NULL))
+			VIPS_DEMAND_STYLE_FATSTRIP, in, NULL))
 		return -1;
 	rank->out->Xsize -= rank->width - 1;
 	rank->out->Ysize -= rank->height - 1;
