X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=overlay_effect.cpp;h=3440f76bf6a5a415325c0b7eb9af7cd15c20b48d;hp=3a42240a0b063914292cff2fa65f0de62c8ea4c8;hb=2906256567cb3899b615d45e7d8a8fb482572147;hpb=7cfa62b39fb56fb1e5f094fa11bfe9d84445c80f

diff --git a/overlay_effect.cpp b/overlay_effect.cpp
index 3a42240..3440f76 100644
--- a/overlay_effect.cpp
+++ b/overlay_effect.cpp
@@ -5,11 +5,17 @@ using namespace std;
 
 namespace movit {
 
-OverlayEffect::OverlayEffect() {}
+OverlayEffect::OverlayEffect()
+	: swap_inputs(false)
+{
+	register_int("swap_inputs", (int *)&swap_inputs);
+}
 
 string OverlayEffect::output_fragment_shader()
 {
-	return read_file("overlay_effect.frag");
+	char buf[256];
+	snprintf(buf, sizeof(buf), "#define SWAP_INPUTS %d\n", swap_inputs);
+	return buf + read_file("overlay_effect.frag");
 }
 
 }  // namespace movit