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builtins: Add atan().

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This commit is contained in:
Eric Anholt
2010-05-19 12:44:23 -07:00
parent 5e58e541e0
commit 60fa1a9458
2 changed files with 312 additions and 0 deletions
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builtin_function.cpp
+158
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@@ -199,6 +199,163 @@ static const char *builtins_110_asin = {
"))\n"
};
static const char *builtins_110_atan = {
"((function atan\n"
" (signature float\n"
" (parameters\n"
" (declare (in) float x))\n"
" ((return (call asin ((expression float *\n"
" (var_ref x)\n"
" (expression float rsq\n"
" (expression float +\n"
" (expression float *\n"
" (var_ref x)\n"
" (var_ref x))\n"
" (constant float (1.0))))))))))\n"
"\n"
" (signature vec2\n"
" (parameters\n"
" (declare (in) vec2 y_over_x))\n"
" ((return (call asin ((expression vec2 *\n"
" (var_ref y_over_x)\n"
" (expression vec2 rsq\n"
" (expression vec2 +\n"
" (expression vec2 *\n"
" (var_ref y_over_x)\n"
" (var_ref y_over_x))\n"
" (constant float (1.0))))))))))\n"
"\n"
" (signature vec3\n"
" (parameters\n"
" (declare (in) vec3 y_over_x))\n"
" ((return (call asin ((expression vec3 *\n"
" (var_ref y_over_x)\n"
" (expression vec3 rsq\n"
" (expression vec3 +\n"
" (expression vec3 *\n"
" (var_ref y_over_x)\n"
" (var_ref y_over_x))\n"
" (constant float (1.0))))))))))\n"
"\n"
" (signature vec4\n"
" (parameters\n"
" (declare (in) vec4 y_over_x))\n"
" ((return (call asin ((expression vec4 *\n"
" (var_ref y_over_x)\n"
" (expression vec4 rsq\n"
" (expression vec4 +\n"
" (expression vec4 *\n"
" (var_ref y_over_x)\n"
" (var_ref y_over_x))\n"
" (constant float (1.0))))))))))\n"
"\n"
" (signature float\n"
" (parameters\n"
" (declare (in) float y)\n"
" (declare (in) float x))\n"
" ((declare () float r)\n"
" (if (expression bool >\n"
" (expression float abs (var_ref x))\n"
" (constant float (.0001)))\n"
" ((assign (constant bool (1))\n"
" (var_ref r) (call atan ((expression float /\n"
" (var_ref y)\n"
" (var_ref x)))))\n"
" (if (expression bool <\n"
" (var_ref x)\n"
" (constant float (0.0)))\n"
" ((assign (constant bool (1))\n"
" (var_ref r)\n"
" (expression float +\n"
" (var_ref r)\n"
" (expression float *\n"
" (expression int sign (var_ref y))\n"
" (constant float (3.1415926))))))\n"
" ()))\n"
" ())\n"
" (return (var_ref r))))\n"
"\n"
" (signature vec2\n"
" (parameters\n"
" (declare (in) vec2 y)\n"
" (declare (in) vec2 x))\n"
" ((declare () vec2 r)\n"
" (if (expression bool >\n"
" (expression vec2 abs (var_ref x))\n"
" (constant float (.0001)))\n"
" ((assign (constant bool (1))\n"
" (var_ref r) (call atan ((expression vec2 /\n"
" (var_ref y)\n"
" (var_ref x)))))\n"
" (if (expression bool <\n"
" (var_ref x)\n"
" (constant float (0.0)))\n"
" ((assign (constant bool (1))\n"
" (var_ref r)\n"
" (expression vec2 +\n"
" (var_ref r)\n"
" (expression vec2 *\n"
" (expression int sign (var_ref y))\n"
" (constant float (3.1415926))))))\n"
" ()))\n"
" ())\n"
" (return (var_ref r))))\n"
"\n"
" (signature vec3\n"
" (parameters\n"
" (declare (in) vec3 y)\n"
" (declare (in) vec3 x))\n"
" ((declare () vec3 r)\n"
" (if (expression bool >\n"
" (expression vec3 abs (var_ref x))\n"
" (constant float (.0001)))\n"
" ((assign (constant bool (1))\n"
" (var_ref r) (call atan ((expression vec3 /\n"
" (var_ref y)\n"
" (var_ref x)))))\n"
" (if (expression bool <\n"
" (var_ref x)\n"
" (constant float (0.0)))\n"
" ((assign (constant bool (1))\n"
" (var_ref r)\n"
" (expression vec3 +\n"
" (var_ref r)\n"
" (expression vec3 *\n"
" (expression int sign (var_ref y))\n"
" (constant float (3.1415926))))))\n"
" ()))\n"
" ())\n"
" (return (var_ref r))))\n"
"\n"
" (signature vec4\n"
" (parameters\n"
" (declare (in) vec4 y)\n"
" (declare (in) vec4 x))\n"
" ((declare () vec4 r)\n"
" (if (expression bool >\n"
" (expression vec4 abs (var_ref x))\n"
" (constant float (.0001)))\n"
" ((assign (constant bool (1))\n"
" (var_ref r) (call atan ((expression vec4 /\n"
" (var_ref y)\n"
" (var_ref x)))))\n"
" (if (expression bool <\n"
" (var_ref x)\n"
" (constant float (0.0)))\n"
" ((assign (constant bool (1))\n"
" (var_ref r)\n"
" (expression vec4 +\n"
" (var_ref r)\n"
" (expression vec4 *\n"
" (expression int sign (var_ref y))\n"
" (constant float (3.1415926))))))\n"
" ()))\n"
" ())\n"
" (return (var_ref r))))\n"
"\n"
"))\n"
};
static const char *builtins_110_ceil = {
"((function ceil\n"
" (signature float\n"
@@ -1563,6 +1720,7 @@ static const char *functions_for_110 [] = {
builtins_110_all,
builtins_110_any,
builtins_110_asin,
builtins_110_atan,
builtins_110_ceil,
builtins_110_clamp,
builtins_110_cos,