X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=ycbcr_conversion_effect.frag;h=4ef38016a7240e88023e32b7b5e0a8764b372526;hp=6bc29b1be63782bcd950f3dd451256a2caedb8f0;hb=2fd06b9c44225d1e740cb2de08a9dfa5c9cd0031;hpb=80fc4a6e806e5638ae050c3020962137ca5fd76b

diff --git a/ycbcr_conversion_effect.frag b/ycbcr_conversion_effect.frag
index 6bc29b1..4ef3801 100644
--- a/ycbcr_conversion_effect.frag
+++ b/ycbcr_conversion_effect.frag
@@ -1,8 +1,17 @@
+// See footer.frag for details about this if statement.
+#ifndef YCBCR_ALSO_OUTPUT_RGBA
+#define YCBCR_ALSO_OUTPUT_RGBA 0
+#endif
+
 uniform sampler2D PREFIX(tex_y);
 uniform sampler2D PREFIX(tex_cb);
 uniform sampler2D PREFIX(tex_cr);
 
+#if YCBCR_ALSO_OUTPUT_RGBA
+vec4[2] FUNCNAME(vec2 tc) {
+#else
 vec4 FUNCNAME(vec2 tc) {
+#endif
 	vec4 rgba = INPUT(tc);
 	vec4 ycbcr_a;
 
@@ -20,5 +29,10 @@ vec4 FUNCNAME(vec2 tc) {
 #endif
 
 	ycbcr_a.a = rgba.a;
+
+#if YCBCR_ALSO_OUTPUT_RGBA
+	return vec4[2](ycbcr_a, rgba);
+#else
 	return ycbcr_a;
+#endif
 }