diff options
| author | Eric Anholt <[email protected]> | 2010-05-19 12:44:23 -0700 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2010-06-01 15:15:04 -0700 |
| commit | 60fa1a9458b012f39919a9c4070bfc4a0654d317 (patch) | |
| tree | 08aa961c139e9a63f96a4f89424ca69fd3d16ca4 /builtins | |
| parent | 5e58e541e0419b23b958e32a22c4c7b398e414a3 (diff) | |
builtins: Add atan().
Diffstat (limited to 'builtins')
| -rw-r--r-- | builtins/110/atan | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/builtins/110/atan b/builtins/110/atan new file mode 100644 index 00000000000..e5542350b51 --- /dev/null +++ b/builtins/110/atan @@ -0,0 +1,154 @@ +((function atan + (signature float + (parameters + (declare (in) float x)) + ((return (call asin ((expression float * + (var_ref x) + (expression float rsq + (expression float + + (expression float * + (var_ref x) + (var_ref x)) + (constant float (1.0)))))))))) + + (signature vec2 + (parameters + (declare (in) vec2 y_over_x)) + ((return (call asin ((expression vec2 * + (var_ref y_over_x) + (expression vec2 rsq + (expression vec2 + + (expression vec2 * + (var_ref y_over_x) + (var_ref y_over_x)) + (constant float (1.0)))))))))) + + (signature vec3 + (parameters + (declare (in) vec3 y_over_x)) + ((return (call asin ((expression vec3 * + (var_ref y_over_x) + (expression vec3 rsq + (expression vec3 + + (expression vec3 * + (var_ref y_over_x) + (var_ref y_over_x)) + (constant float (1.0)))))))))) + + (signature vec4 + (parameters + (declare (in) vec4 y_over_x)) + ((return (call asin ((expression vec4 * + (var_ref y_over_x) + (expression vec4 rsq + (expression vec4 + + (expression vec4 * + (var_ref y_over_x) + (var_ref y_over_x)) + (constant float (1.0)))))))))) + + (signature float + (parameters + (declare (in) float y) + (declare (in) float x)) + ((declare () float r) + (if (expression bool > + (expression float abs (var_ref x)) + (constant float (.0001))) + ((assign (constant bool (1)) + (var_ref r) (call atan ((expression float / + (var_ref y) + (var_ref x))))) + (if (expression bool < + (var_ref x) + (constant float (0.0))) + ((assign (constant bool (1)) + (var_ref r) + (expression float + + (var_ref r) + (expression float * + (expression int sign (var_ref y)) + (constant float (3.1415926)))))) + ())) + ()) + (return (var_ref r)))) + + (signature vec2 + (parameters + (declare (in) vec2 y) + (declare (in) vec2 x)) + ((declare () vec2 r) + (if (expression bool > + (expression vec2 abs (var_ref x)) + (constant float (.0001))) + ((assign (constant bool (1)) + (var_ref r) (call atan ((expression vec2 / + (var_ref y) + (var_ref x))))) + (if (expression bool < + (var_ref x) + (constant float (0.0))) + ((assign (constant bool (1)) + (var_ref r) + (expression vec2 + + (var_ref r) + (expression vec2 * + (expression int sign (var_ref y)) + (constant float (3.1415926)))))) + ())) + ()) + (return (var_ref r)))) + + (signature vec3 + (parameters + (declare (in) vec3 y) + (declare (in) vec3 x)) + ((declare () vec3 r) + (if (expression bool > + (expression vec3 abs (var_ref x)) + (constant float (.0001))) + ((assign (constant bool (1)) + (var_ref r) (call atan ((expression vec3 / + (var_ref y) + (var_ref x))))) + (if (expression bool < + (var_ref x) + (constant float (0.0))) + ((assign (constant bool (1)) + (var_ref r) + (expression vec3 + + (var_ref r) + (expression vec3 * + (expression int sign (var_ref y)) + (constant float (3.1415926)))))) + ())) + ()) + (return (var_ref r)))) + + (signature vec4 + (parameters + (declare (in) vec4 y) + (declare (in) vec4 x)) + ((declare () vec4 r) + (if (expression bool > + (expression vec4 abs (var_ref x)) + (constant float (.0001))) + ((assign (constant bool (1)) + (var_ref r) (call atan ((expression vec4 / + (var_ref y) + (var_ref x))))) + (if (expression bool < + (var_ref x) + (constant float (0.0))) + ((assign (constant bool (1)) + (var_ref r) + (expression vec4 + + (var_ref r) + (expression vec4 * + (expression int sign (var_ref y)) + (constant float (3.1415926)))))) + ())) + ()) + (return (var_ref r)))) + +)) |