X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=footer.frag;h=4976136abf07491c6e586fa6a9380d5878248f48;hp=c140b46f6cf0e920dc6fb2d35686b4e861bfaa83;hb=refs%2Fheads%2F1.3.x-release;hpb=06ba8d86c019208682d8883dc7187df37b027814

diff --git a/footer.frag b/footer.frag
index c140b46..4976136 100644
--- a/footer.frag
+++ b/footer.frag
@@ -1,14 +1,55 @@
+// GLSL is pickier than the C++ preprocessor in if-testing for undefined
+// tokens; do some fixups here to keep it happy.
+
+#ifndef YCBCR_OUTPUT_PLANAR
+#define YCBCR_OUTPUT_PLANAR 0
+#endif
+
+#ifndef YCBCR_OUTPUT_SPLIT_Y_AND_CBCR
+#define YCBCR_OUTPUT_SPLIT_Y_AND_CBCR 0
+#endif
+
+#ifndef YCBCR_ALSO_OUTPUT_RGBA
+#define YCBCR_ALSO_OUTPUT_RGBA 0
+#endif
+
+#if YCBCR_OUTPUT_PLANAR
+out vec4 Y;
+out vec4 Cb;
+out vec4 Cr;
+#elif YCBCR_OUTPUT_SPLIT_Y_AND_CBCR
+out vec4 Y;
+out vec4 Chroma;
+#else
+out vec4 FragColor;
+#endif
+
+#if YCBCR_ALSO_OUTPUT_RGBA
+out vec4 RGBA;
+#endif
+
 void main()
 {
-	vec4 color = INPUT(tc);
+#if YCBCR_ALSO_OUTPUT_RGBA
+	vec4 color[2] = INPUT(tc);
+	vec4 color0 = color[0];
+	vec4 color1 = color[1];
+#else
+	vec4 color0 = INPUT(tc);
+#endif
+
 #if YCBCR_OUTPUT_PLANAR
-	gl_FragData[0] = color.rrra;
-	gl_FragData[1] = color.ggga;
-	gl_FragData[2] = color.bbba;
+	Y = color0.rrra;
+	Cb = color0.ggga;
+	Cr = color0.bbba;
 #elif YCBCR_OUTPUT_SPLIT_Y_AND_CBCR
-	gl_FragData[0] = color.rrra;
-	gl_FragData[1] = color.gbba;
+	Y = color0.rrra;
+	Chroma = color0.gbba;
 #else
-	gl_FragColor = color;
+	FragColor = color0;
+#endif
+
+#if YCBCR_ALSO_OUTPUT_RGBA
+	RGBA = color1;
 #endif
 }