src/glsl/builtins/ir/atan

   1 ((function atan
   2    (signature float
   3      (parameters
   4        (declare (in) float y_over_x))
   5      ((return (call asin ((expression float *
   6                            (var_ref y_over_x)
   7                            (expression float rsq
   8                             (expression float +
   9                              (expression float *
  10                               (var_ref y_over_x)
  11                               (var_ref y_over_x))
  12                              (constant float (1.0))))))))))
  13
  14    (signature vec2
  15      (parameters
  16        (declare (in) vec2 y_over_x))
  17      ((return (call asin ((expression vec2 *
  18                            (var_ref y_over_x)
  19                            (expression vec2 rsq
  20                             (expression vec2 +
  21                              (expression vec2 *
  22                               (var_ref y_over_x)
  23                               (var_ref y_over_x))
  24                              (constant float (1.0))))))))))
  25
  26    (signature vec3
  27      (parameters
  28        (declare (in) vec3 y_over_x))
  29      ((return (call asin ((expression vec3 *
  30                            (var_ref y_over_x)
  31                            (expression vec3 rsq
  32                             (expression vec3 +
  33                              (expression vec3 *
  34                               (var_ref y_over_x)
  35                               (var_ref y_over_x))
  36                              (constant float (1.0))))))))))
  37
  38    (signature vec4
  39      (parameters
  40        (declare (in) vec4 y_over_x))
  41      ((return (call asin ((expression vec4 *
  42                            (var_ref y_over_x)
  43                            (expression vec4 rsq
  44                             (expression vec4 +
  45                              (expression vec4 *
  46                               (var_ref y_over_x)
  47                               (var_ref y_over_x))
  48                              (constant float (1.0))))))))))
  49
  50   (signature float
  51     (parameters
  52       (declare (in ) float y)
  53       (declare (in ) float x)
  54     )
  55     (
  56       (declare () float r)
  57       (if (expression bool > (expression float abs (var_ref x)) (constant float (0.000100))) (
  58         (assign (constant bool (1)) (x) (var_ref r) (call atan ((expression float / (var_ref y) (var_ref x)))))
  59         (if (expression bool < (var_ref x) (constant float (0.000000)) ) (
  60           (if (expression bool >= (var_ref y) (constant float (0.000000)) )
  61               ((assign (constant bool (1)) (x) (var_ref r) (expression float + (var_ref r) (constant float (3.141593)))))
  62               ((assign (constant bool (1)) (x) (var_ref r) (expression float - (var_ref r) (constant float (3.141593))))))
  63         )
  64         (
  65         ))
  66       )
  67       (
  68         (declare () float sgn)
  69         (assign (constant bool (1)) (x) (var_ref sgn) (expression float sign (var_ref y)))
  70         (assign (constant bool (1)) (x) (var_ref r) (expression float * (var_ref sgn) (constant float (1.5707965))))
  71       ))
  72
  73       (return (var_ref r) )
  74     ))
  75
  76
  77
  78    (signature vec2
  79      (parameters
  80        (declare (in) vec2 y)
  81        (declare (in) vec2 x))
  82      ((declare () vec2 r)
  83       (assign (constant bool (1)) (x) (var_ref r)
  84               (call atan ((swiz x (var_ref y))
  85                           (swiz x (var_ref x)))))
  86       (assign (constant bool (1)) (y) (var_ref r)
  87               (call atan ((swiz y (var_ref y))
  88                           (swiz y (var_ref x)))))
  89       (return (var_ref r))))
  90
  91    (signature vec3
  92      (parameters
  93        (declare (in) vec3 y)
  94        (declare (in) vec3 x))
  95      ((declare () vec3 r)
  96       (assign (constant bool (1)) (x) (var_ref r)
  97               (call atan ((swiz x (var_ref y))
  98                           (swiz x (var_ref x)))))
  99       (assign (constant bool (1)) (y) (var_ref r)
 100               (call atan ((swiz y (var_ref y))
 101                           (swiz y (var_ref x)))))
 102       (assign (constant bool (1)) (z) (var_ref r)
 103               (call atan ((swiz z (var_ref y))
 104                           (swiz z (var_ref x)))))
 105       (return (var_ref r))))
 106
 107    (signature vec4
 108      (parameters
 109        (declare (in) vec4 y)
 110        (declare (in) vec4 x))
 111      ((declare () vec4 r)
 112       (assign (constant bool (1)) (x) (var_ref r)
 113               (call atan ((swiz x (var_ref y))
 114                           (swiz x (var_ref x)))))
 115       (assign (constant bool (1)) (y) (var_ref r)
 116               (call atan ((swiz y (var_ref y))
 117                           (swiz y (var_ref x)))))
 118       (assign (constant bool (1)) (z) (var_ref r)
 119               (call atan ((swiz z (var_ref y))
 120                           (swiz z (var_ref x)))))
 121       (assign (constant bool (1)) (w) (var_ref r)
 122               (call atan ((swiz w (var_ref y))
 123                           (swiz w (var_ref x)))))
 124       (return (var_ref r)))))
 125
 126 ))