From c8de850dd5b80b42f75dc339921b3d4f28db5bf5 Mon Sep 17 00:00:00 2001
From: Kenneth Graunke <kenneth@whitecape.org>
Date: Mon, 3 May 2010 22:12:35 -0700
Subject: [PATCH] Implement "tan" builtin.

---
 builtins/110/tan | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 builtins/110/tan

diff --git a/builtins/110/tan b/builtins/110/tan
new file mode 100644
index 00000000000..3e04892a76c
--- /dev/null
+++ b/builtins/110/tan
@@ -0,0 +1,21 @@
+((function tan
+   (signature float
+     (parameters
+       (declare (in) float angle))
+     ((return (expression float / (expression float sin (var_ref angle)) (expression float cos (var_ref angle))))))
+
+   (signature vec2
+     (parameters
+       (declare (in) vec2 angle))
+     ((return (expression float / (expression float sin (var_ref angle)) (expression vec2 cos (var_ref angle))))))
+
+   (signature vec3
+     (parameters
+       (declare (in) vec3 angle))
+     ((return (expression float / (expression float sin (var_ref angle)) (expression vec3 cos (var_ref angle))))))
+
+   (signature vec4
+     (parameters
+       (declare (in) vec4 angle))
+     ((return (expression float / (expression float sin (var_ref angle)) (expression vec4 cos (var_ref angle))))))
+))