glsl2: Rework builtin function generation.

Each language version/extension and target now has a "profile" containing
all of the available builtin function prototypes.  These are written in
GLSL, and come directly out of the GLSL spec (except for expanding genType).

A new builtins/ir/ folder contains the hand-written IR for each builtin,
regardless of what version includes it.  Only those definitions that have
prototypes in the profile will be included.

The autogenerated IR for texture builtins is no longer written to disk,
so there's no longer any confusion as to what's hand-written or
generated.

All scripts are now in python instead of perl.

1 files changed, 97 insertions, 0 deletions

diff --git a/src/glsl/builtins/ir/asin b/src/glsl/builtins/ir/asin
new file mode 100644
index 00000000000..e230ad614ee
--- /dev/null
+++ b/src/glsl/builtins/ir/asin
@@ -0,0 +1,97 @@
+((function asin
+   (signature float
+     (parameters
+       (declare (in) float x))
+     ((return (expression float *
+	       (expression float sign (var_ref x))
+	       (expression float -
+		(expression float *
+		 (constant float (3.1415926))
+		 (constant float (0.5)))
+		(expression float *
+		 (expression float sqrt
+		  (expression float -
+		   (constant float (1.0))
+		   (expression float abs (var_ref x))))
+		 (expression float +
+		  (constant float (1.5707288))
+		  (expression float *
+		   (expression float abs (var_ref x))
+		   (expression float +
+		    (constant float (-0.2121144))
+		    (expression float *
+		     (constant float (0.0742610))
+		     (expression float abs (var_ref x))))))))))))
+
+   (signature vec2
+     (parameters
+       (declare (in) vec2 x))
+     ((return (expression vec2 *
+	       (expression vec2 sign (var_ref x))
+	       (expression vec2 -
+		(expression float *
+		 (constant float (3.1415926))
+		 (constant float (0.5)))
+		(expression vec2 *
+		 (expression vec2 sqrt
+		  (expression vec2 -
+		   (constant float (1.0))
+		   (expression vec2 abs (var_ref x))))
+		 (expression vec2 +
+		  (constant float (1.5707288))
+		  (expression vec2 *
+		   (expression vec2 abs (var_ref x))
+		   (expression vec2 +
+		    (constant float (-0.2121144))
+		    (expression vec2 *
+		     (constant float (0.0742610))
+		     (expression vec2 abs (var_ref x))))))))))))
+
+   (signature vec3
+     (parameters
+       (declare (in) vec3 x))
+     ((return (expression vec3 *
+	       (expression vec3 sign (var_ref x))
+	       (expression vec3 -
+		(expression float *
+		 (constant float (3.1415926))
+		 (constant float (0.5)))
+		(expression vec3 *
+		 (expression vec3 sqrt
+		  (expression vec3 -
+		   (constant float (1.0))
+		   (expression vec3 abs (var_ref x))))
+		 (expression vec3 +
+		  (constant float (1.5707288))
+		  (expression vec3 *
+		   (expression vec3 abs (var_ref x))
+		   (expression vec3 +
+		    (constant float (-0.2121144))
+		    (expression vec3 *
+		     (constant float (0.0742610))
+		     (expression vec3 abs (var_ref x))))))))))))
+
+   (signature vec4
+     (parameters
+       (declare (in) vec4 x))
+     ((return (expression vec4 *
+	       (expression vec4 sign (var_ref x))
+	       (expression vec4 -
+		(expression float *
+		 (constant float (3.1415926))
+		 (constant float (0.5)))
+		(expression vec4 *
+		 (expression vec4 sqrt
+		  (expression vec4 -
+		   (constant float (1.0))
+		   (expression vec4 abs (var_ref x))))
+		 (expression vec4 +
+		  (constant float (1.5707288))
+		  (expression vec4 *
+		   (expression vec4 abs (var_ref x))
+		   (expression vec4 +
+		    (constant float (-0.2121144))
+		    (expression vec4 *
+		     (constant float (0.0742610))
+		     (expression vec4 abs (var_ref x))))))))))))
+))