From 855fcb22c1536a2c2b03c88bffa60eb7cc40ff0a Mon Sep 17 00:00:00 2001
From: Kenneth Graunke <kenneth@whitecape.org>
Date: Wed, 9 Jun 2010 13:52:32 -0700
Subject: Implement 'acos' builtin.

This is tacked on to the end of the 'asin' file because acos calls asin,
whech means asin needs to be defined first.  Alphabetical order fail.
---
 builtins/110/asin | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'builtins')

diff --git a/builtins/110/asin b/builtins/110/asin
index 0c913b6ae7..5e1d16719f 100644
--- a/builtins/110/asin
+++ b/builtins/110/asin
@@ -86,4 +86,27 @@
      	          (expression vec4 *
      	           (constant float (0.0742610))
 	           (expression vec4 abs (var_ref x))))))))))
+)
+
+ (function acos
+   (signature float
+     (parameters
+       (declare (in) float x))
+     ((return (expression float - (constant float (1.5707963))
+                                  (call asin ((var_ref x)))))))
+   (signature vec2
+     (parameters
+       (declare (in) vec2 x))
+     ((return (expression vec2 - (constant float (1.5707963))
+                                 (call asin ((var_ref x)))))))
+   (signature vec3
+     (parameters
+       (declare (in) vec3 x))
+     ((return (expression vec3 - (constant float (1.5707963))
+                                 (call asin ((var_ref x)))))))
+   (signature vec4
+     (parameters
+       (declare (in) vec4 x))
+     ((return (expression vec4 - (constant float (1.5707963))
+                                 (call asin ((var_ref x)))))))
 ))
-- 
cgit v1.2.3