X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=overlay_effect.h;h=40a6fff99e2a465f71cff654d8ae675495c08685;hp=489d8d78168c449ccf8bf6e35c86182732f1a04f;hb=f216b7bef5a968c89f6fc78e83cc26a91e504a8a;hpb=cfc161e0289c2169d4835c48751ff56b97355eb2

diff --git a/overlay_effect.h b/overlay_effect.h
index 489d8d7..40a6fff 100644
--- a/overlay_effect.h
+++ b/overlay_effect.h
@@ -24,6 +24,7 @@ public:
 
 	virtual bool needs_srgb_primaries() const { return false; }
 	virtual unsigned num_inputs() const { return 2; }
+	virtual bool one_to_one_sampling() const { return true; }
 
 	// Actually, if _either_ image has blank alpha, our output will have
 	// blank alpha, too (this only tells the framework that having _both_
@@ -31,6 +32,11 @@ public:
 	// However, understanding that would require changes
 	// to EffectChain, so postpone that optimization for later.
 	virtual AlphaHandling alpha_handling() const { return INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK; }
+
+private:
+	// If true, overlays input1 on top of input2 instead of vice versa.
+	// Must be set before finalize.
+	bool swap_inputs;
 };
 
 }  // namespace movit