X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=effect.h;fp=effect.h;h=ba39d6a3cf5bbdc88503214062fd6e075c3da48e;hp=afac5dc91c840ad6f273786498c1233547927343;hb=e683d4e49549b2d4c6906d2ebc4184904f4fe9f8;hpb=f909bfe0621e8c844695ef327b71457893633cae

diff --git a/effect.h b/effect.h
index afac5dc..ba39d6a 100644
--- a/effect.h
+++ b/effect.h
@@ -196,7 +196,16 @@ public:
 	// set sets_virtual_output_size(), though.
 	//
 	// Does not make a lot of sense together with needs_texture_bounce().
-	virtual bool one_to_one_sampling() const { return false; }
+	// Cannot be set for compute shaders.
+	virtual bool one_to_one_sampling() const { return strong_one_to_one_sampling(); }
+
+	// Similar in use to one_to_one_sampling(), but even stricter:
+	// The effect must not use texture coordinate in any way beyond
+	// giving it unmodified to its (single) input. This allows it to
+	// also be used after a compute shader, in the same phase.
+	//
+	// An effect that it strong one-to-one must also be one-to-one.
+	virtual bool strong_one_to_one_sampling() const { return false; }
 
 	// Whether this effect wants to output to a different size than
 	// its input(s) (see inform_input_size(), below). See also