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, 156 insertions, 105 deletions

diff --git a/src/glsl/builtins/tools/texture_builtins.py b/src/glsl/builtins/tools/texture_builtins.py
index 33d9642ef7..8bf708b5aa 100755
--- a/src/glsl/builtins/tools/texture_builtins.py
+++ b/src/glsl/builtins/tools/texture_builtins.py
@@ -1,7 +1,7 @@
 #!/usr/bin/python
 
-from os import path
 import sys
+import StringIO
 
 def vec_type(g, size):
     if size == 1:
@@ -95,204 +95,255 @@ def generate_fiu_sigs(tex_inst, sampler_type, use_proj = False, unused_fields =
     generate_sigs("i", tex_inst, sampler_type, use_proj, unused_fields)
     generate_sigs("u", tex_inst, sampler_type, use_proj, unused_fields)
 
-builtins_dir = path.join(path.dirname(path.abspath(__file__)), "..")
+def start_function(name):
+    sys.stdout = StringIO.StringIO()
+    print "((function " + name
 
-with open(path.join(builtins_dir, "130", "texture"), 'w') as sys.stdout:
-    print "((function texture"
+def end_function(fs, name):
+    print "))"
+    fs[name] = sys.stdout.getvalue();
+    sys.stdout.close()
+
+# Generate all the functions and store them in the supplied dictionary.
+# This is better than writing them to actual files since they should never be
+# edited; it'd also be easy to confuse them with the many hand-generated files.
+#
+# Takes a dictionary as an argument.
+def generate_texture_functions(fs):
+    start_function("texture")
     generate_fiu_sigs("tex", "1D")
     generate_fiu_sigs("tex", "2D")
     generate_fiu_sigs("tex", "3D")
     generate_fiu_sigs("tex", "Cube")
     generate_fiu_sigs("tex", "1DArray")
     generate_fiu_sigs("tex", "2DArray")
-    print "))"
 
-# txb variants are only allowed within a fragment shader (GLSL 1.30 p. 86)
-with open(path.join(builtins_dir, "130_fs", "texture"), 'w') as sys.stdout:
-    print "((function texture"
     generate_fiu_sigs("txb", "1D")
     generate_fiu_sigs("txb", "2D")
     generate_fiu_sigs("txb", "3D")
     generate_fiu_sigs("txb", "Cube")
     generate_fiu_sigs("txb", "1DArray")
     generate_fiu_sigs("txb", "2DArray")
-    print "))"
+    end_function(fs, "texture")
 
-with open(path.join(builtins_dir, "130", "textureProj"), 'w') as sys.stdout:
-    print "((function textureProj"
+    start_function("textureProj")
     generate_fiu_sigs("tex", "1D", True)
     generate_fiu_sigs("tex", "1D", True, 2)
     generate_fiu_sigs("tex", "2D", True)
     generate_fiu_sigs("tex", "2D", True, 1)
     generate_fiu_sigs("tex", "3D", True)
-    print "))"
 
-with open(path.join(builtins_dir, "130_fs", "textureProj"), 'w') as sys.stdout:
-    print "((function textureProj"
     generate_fiu_sigs("txb", "1D", True)
     generate_fiu_sigs("txb", "1D", True, 2)
     generate_fiu_sigs("txb", "2D", True)
     generate_fiu_sigs("txb", "2D", True, 1)
     generate_fiu_sigs("txb", "3D", True)
-    print "))"
+    end_function(fs, "textureProj")
 
-with open(path.join(builtins_dir, "130", "textureLod"), 'w') as sys.stdout:
-    print "((function textureLod"
+    start_function("textureLod")
     generate_fiu_sigs("txl", "1D")
     generate_fiu_sigs("txl", "2D")
     generate_fiu_sigs("txl", "3D")
     generate_fiu_sigs("txl", "Cube")
     generate_fiu_sigs("txl", "1DArray")
     generate_fiu_sigs("txl", "2DArray")
-    print "))"
+    end_function(fs, "textureLod")
 
-with open(path.join(builtins_dir, "130", "texelFetch"), 'w') as sys.stdout:
-    print "((function texelFetch"
+    start_function("texelFetch")
     generate_fiu_sigs("txf", "1D")
     generate_fiu_sigs("txf", "2D")
     generate_fiu_sigs("txf", "3D")
     generate_fiu_sigs("txf", "1DArray")
     generate_fiu_sigs("txf", "2DArray")
-    print "))"
+    end_function(fs, "texelFetch")
 
-with open(path.join(builtins_dir, "130", "textureProjLod"), 'w') as sys.stdout:
-    print "((function textureProjLod"
+    start_function("textureProjLod")
     generate_fiu_sigs("txl", "1D", True)
     generate_fiu_sigs("txl", "1D", True, 2)
     generate_fiu_sigs("txl", "2D", True)
     generate_fiu_sigs("txl", "2D", True, 1)
     generate_fiu_sigs("txl", "3D", True)
-    print "))"
+    end_function(fs, "textureProjLod")
 
-with open(path.join(builtins_dir, "130", "textureGrad"), 'w') as sys.stdout:
-    print "((function textureGrad"
+    start_function("textureGrad")
     generate_fiu_sigs("txd", "1D")
     generate_fiu_sigs("txd", "2D")
     generate_fiu_sigs("txd", "3D")
     generate_fiu_sigs("txd", "Cube")
     generate_fiu_sigs("txd", "1DArray")
     generate_fiu_sigs("txd", "2DArray")
-    print ")\n)"
+    end_function(fs, "textureGrad")
 
-with open(path.join(builtins_dir, "130", "textureProjGrad"), 'w') as sys.stdout:
-    print "((function textureProjGrad"
+    start_function("textureProjGrad")
     generate_fiu_sigs("txd", "1D", True)
     generate_fiu_sigs("txd", "1D", True, 2)
     generate_fiu_sigs("txd", "2D", True)
     generate_fiu_sigs("txd", "2D", True, 1)
     generate_fiu_sigs("txd", "3D", True)
-    print "))"
+    end_function(fs, "textureProjGrad")
 
-# ARB_texture_rectangle extension
-with open(path.join(builtins_dir, "ARB_texture_rectangle", "textures"), 'w') as sys.stdout:
-    print "((function texture2DRect"
+    # ARB_texture_rectangle extension
+    start_function("texture2DRect")
     generate_sigs("", "tex", "2DRect")
-    print ")\n (function shadow2DRect"
+    end_function(fs, "texture2DRect")
+
+    start_function("texture2DRectProj")
+    generate_sigs("", "tex", "2DRect", True)
+    generate_sigs("", "tex", "2DRect", True, 1)
+    end_function(fs, "texture2DRectProj")
+
+    start_function("shadow2DRect")
     generate_sigs("", "tex", "2DRectShadow")
-    print "))"
+    end_function(fs, "shadow2DRect")
 
-# EXT_texture_array extension
-with open(path.join(builtins_dir, "EXT_texture_array", "textures"), 'w') as sys.stdout:
-    print "((function texture1DArray"
+    start_function("shadow2DRectProj")
+    generate_sigs("", "tex", "2DRectShadow", True)
+    end_function(fs, "shadow2DRectProj")
+
+    # EXT_texture_array extension
+    start_function("texture1DArray")
     generate_sigs("", "tex", "1DArray")
-    print ")\n (function texture1DArrayLod"
+    generate_sigs("", "txb", "1DArray")
+    end_function(fs, "texture1DArray")
+
+    start_function("texture1DArrayLod")
     generate_sigs("", "txl", "1DArray")
-    print ")\n (function texture2DArray"
+    end_function(fs, "texture1DArrayLod")
+
+    start_function("texture2DArray")
     generate_sigs("", "tex", "2DArray")
-    print ")\n (function texture2DArrayLod"
+    generate_sigs("", "txb", "2DArray")
+    end_function(fs, "texture2DArray")
+
+    start_function("texture2DArrayLod")
     generate_sigs("", "txl", "2DArray")
-    print ")\n (function shadow1DArray"
+    end_function(fs, "texture2DArrayLod")
+
+    start_function("shadow1DArray")
     generate_sigs("", "tex", "1DArrayShadow")
-    print ")\n (function shadow1DArrayLod"
+    generate_sigs("", "txb", "1DArrayShadow")
+    end_function(fs, "shadow1DArray")
+
+    start_function("shadow1DArrayLod")
     generate_sigs("", "txl", "1DArrayShadow")
-    print ")\n (function shadow2DArray"
-    generate_sigs("", "tex", "2DArrayShadow")
-    print "))"
+    end_function(fs, "shadow1DArrayLod")
 
-with open(path.join(builtins_dir, "EXT_texture_array_fs", "textures"), 'w') as sys.stdout:
-    print "((function texture1DArray"
-    generate_sigs("", "txb", "1DArray")
-    print ")\n (function texture2DArray"
-    generate_sigs("", "txb", "2DArray")
-    print ")\n (function shadow1DArray"
-    generate_sigs("", "txb", "1DArrayShadow")
-    print "))"
+    start_function("shadow2DArray")
+    generate_sigs("", "tex", "2DArrayShadow")
+    end_function(fs, "shadow2DArray")
 
-# Deprecated (110/120 style) functions with silly names:
-with open(path.join(builtins_dir, "110", "textures"), 'w') as sys.stdout:
-    print "((function texture1D"
+    # Deprecated (110/120 style) functions with silly names:
+    start_function("texture1D")
     generate_sigs("", "tex", "1D")
-    print ")\n (function texture1DLod"
+    generate_sigs("", "txb", "1D")
+    end_function(fs, "texture1D")
+
+    start_function("texture1DLod")
     generate_sigs("", "txl", "1D")
-    print ")\n (function texture1DProj"
+    end_function(fs, "texture1DLod")
+
+    start_function("texture1DProj")
     generate_sigs("", "tex", "1D", True)
     generate_sigs("", "tex", "1D", True, 2)
-    print ")\n (function texture1DProjLod"
+    generate_sigs("", "txb", "1D", True)
+    generate_sigs("", "txb", "1D", True, 2)
+    end_function(fs, "texture1DProj")
+
+    start_function("texture1DProjLod")
     generate_sigs("", "txl", "1D", True)
     generate_sigs("", "txl", "1D", True, 2)
-    print ")\n (function texture2D"
+    end_function(fs, "texture1DProjLod")
+
+    start_function("texture2D")
     generate_sigs("", "tex", "2D")
-    print ")\n(function texture2DLod"
+    generate_sigs("", "txb", "2D")
+    end_function(fs, "texture2D")
+
+    start_function("texture2DLod")
     generate_sigs("", "txl", "2D")
-    print ")\n (function texture2DProj"
+    end_function(fs, "texture2DLod")
+
+    start_function("texture2DProj")
     generate_sigs("", "tex", "2D", True)
     generate_sigs("", "tex", "2D", True, 1)
-    print ")\n (function texture2DProjLod"
+    generate_sigs("", "txb", "2D", True)
+    generate_sigs("", "txb", "2D", True, 1)
+    end_function(fs, "texture2DProj")
+
+    start_function("texture2DProjLod")
     generate_sigs("", "txl", "2D", True)
     generate_sigs("", "txl", "2D", True, 1)
-    print ")\n (function texture3D"
+    end_function(fs, "texture2DProjLod")
+
+    start_function("texture3D")
     generate_sigs("", "tex", "3D")
-    print ")\n (function texture3DLod"
+    generate_sigs("", "txb", "3D")
+    end_function(fs, "texture3D")
+
+    start_function("texture3DLod")
     generate_sigs("", "txl", "3D")
-    print ")\n (function texture3DProj"
+    end_function(fs, "texture3DLod")
+
+    start_function("texture3DProj")
     generate_sigs("", "tex", "3D", True)
-    print ")\n (function texture3DProjLod"
+    generate_sigs("", "txb", "3D", True)
+    end_function(fs, "texture3DProj")
+
+    start_function("texture3DProjLod")
     generate_sigs("", "txl", "3D", True)
-    print ")\n (function textureCube"
+    end_function(fs, "texture3DProjLod")
+
+    start_function("textureCube")
     generate_sigs("", "tex", "Cube")
-    print ")\n (function textureCubeLod"
+    generate_sigs("", "txb", "Cube")
+    end_function(fs, "textureCube")
+
+    start_function("textureCubeLod")
     generate_sigs("", "txl", "Cube")
-    print ")\n (function shadow1D"
+    end_function(fs, "textureCubeLod")
+
+    start_function("shadow1D")
     generate_sigs("", "tex", "1DShadow", False, 1)
-    print ")\n (function shadow1DLod"
+    generate_sigs("", "txb", "1DShadow", False, 1)
+    end_function(fs, "shadow1D")
+
+    start_function("shadow1DLod")
     generate_sigs("", "txl", "1DShadow", False, 1)
-    print ")\n (function shadow1DProj"
+    end_function(fs, "shadow1DLod")
+
+    start_function("shadow1DProj")
     generate_sigs("", "tex", "1DShadow", True, 1)
-    print ")\n (function shadow1DProjLod"
+    generate_sigs("", "txb", "1DShadow", True, 1)
+    end_function(fs, "shadow1DProj")
+
+    start_function("shadow1DProjLod")
     generate_sigs("", "txl", "1DShadow", True, 1)
-    print ")\n (function shadow2D"
+    end_function(fs, "shadow1DProjLod")
+
+    start_function("shadow2D")
     generate_sigs("", "tex", "2DShadow")
-    print ")\n (function shadow2DLod"
+    generate_sigs("", "txb", "2DShadow")
+    end_function(fs, "shadow2D")
+
+    start_function("shadow2DLod")
     generate_sigs("", "txl", "2DShadow")
-    print ")\n (function shadow2DProj"
+    end_function(fs, "shadow2DLod")
+
+    start_function("shadow2DProj")
     generate_sigs("", "tex", "2DShadow", True)
-    print ")\n (function shadow2DProjLod"
+    generate_sigs("", "txb", "2DShadow", True)
+    end_function(fs, "shadow2DProj")
+
+    start_function("shadow2DProjLod")
     generate_sigs("", "txl", "2DShadow", True)
-    print "))"
+    end_function(fs, "shadow2DProjLod")
 
-with open(path.join(builtins_dir, "110_fs", "textures"), 'w') as sys.stdout:
-    print "((function texture1D"
-    generate_sigs("", "txb", "1D")
-    print ")\n (function texture1DProj"
-    generate_sigs("", "txb", "1D", True)
-    generate_sigs("", "txb", "1D", True, 2)
-    print ")\n (function texture2D"
-    generate_sigs("", "txb", "2D")
-    print ")\n (function texture2DProj"
-    generate_sigs("", "txb", "2D", True)
-    generate_sigs("", "txb", "2D", True, 1)
-    print ")\n (function texture3D"
-    generate_sigs("", "txb", "3D")
-    print ")\n (function texture3DProj"
-    generate_sigs("", "txb", "3D", True)
-    print ")\n (function textureCube"
-    generate_sigs("", "txb", "Cube")
-    print ")\n (function shadow1D"
-    generate_sigs("", "txb", "1DShadow", False, 1)
-    print ")\n (function shadow1DProj"
-    generate_sigs("", "txb", "1DShadow", True, 1)
-    print ")\n (function shadow2D"
-    generate_sigs("", "txb", "2DShadow")
-    print ")\n (function shadow2DProj"
-    generate_sigs("", "txb", "2DShadow", True)
-    print "))"
+    sys.stdout = sys.__stdout__
+    return fs
+
+# If you actually run this script, it'll print out all the functions.
+if __name__ == "__main__":
+    fs = {}
+    generate_texture_functions(fs);
+    for k, v in fs.iteritems():
+	print v