Reduce the amount of arithmetic in the BlurEffect shader a bit.

[movit] / header.frag

diff --git a/header.frag b/header.frag
index 539eb8d07cee1911000bef475240c384ebd75d5b..af211fee6de53e2f02c5018d5ae5e59157117351 100644 (file)
--- a/header.frag
+++ b/header.frag
@@ -1,9 +1,6 @@
-uniform sampler2D input_tex;
-varying vec2 tc;
-
-vec4 read_input(vec2 tc)
-{
-       return texture2D(input_tex, tc.st);
-}
+#ifdef GL_EXT_gpu_shader4
+// We sometimes want round().
+#extension GL_EXT_gpu_shader4 : enable
+#endif
 
-#define INPUT read_input
+varying vec2 tc;