X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=scripts%2Fextgen.py;h=3cd2f5728f3b3d2019f17a0c9171eb230b85c454;hp=d8364b26ef3dbdeb160a4c9be5019e0ad0404f43;hb=16ab664fe93bffba059ea53deccbfed0305f7440;hpb=9cf5d10abe5bdff0708c41544f6e8b15aca5151f

diff --git a/scripts/extgen.py b/scripts/extgen.py
index d8364b26..3cd2f572 100755
--- a/scripts/extgen.py
+++ b/scripts/extgen.py
@@ -2,6 +2,8 @@
 
 import sys
 import os
+import xml.dom
+import xml.dom.minidom
 
 if len(sys.argv)<2:
 	print """Usage:
@@ -55,48 +57,87 @@ class Function:
 funcs = {}
 cur_func = None
 
-def parse_file(fn):
-	for line in open(fn):
-		if line[0]=='#' or line.find(':')>=0:
-			continue
-		elif line[0]=='\t':
-			if cur_func:
-				parts = line.split()
-				if parts[0]=="category":
-					cur_func.category = parts[1]
-				elif parts[0]=="vectorequiv":
-					cur_func.vectorequiv = parts[1]
-				elif parts[0]=="alias":
-					cur_func.aliases.append(parts[1])
-				elif parts[0]=="version":
-					cur_func.version = parts[1]
-				elif parts[0]=="delete":
-					del funcs[cur_func.name]
-					cur_func = None
+def get_nested_elements(elem, path):
+	if '/' in path:
+		head, tail = path.split('/', 1)
+		result = []
+		for e in elem.getElementsByTagName(head):
+			result += get_nested_elements(e, tail)
+		return result
+	else:
+		return elem.getElementsByTagName(path)
+
+def get_text_contents(node):
+	result = ""
+	for c in node.childNodes:
+		if c.nodeType==xml.dom.Node.TEXT_NODE or c.nodeType==xml.dom.Node.CDATA_SECTION_NODE:
+			result += c.data
 		else:
-			paren = line.find('(')
-			if paren>0:
-				name = line[:paren]
-				if name in funcs:
-					cur_func = funcs[name]
-				else:
-					cur_func = Function(name)
-					funcs[name] = cur_func
-
-parse_file("gl.spec")
-parse_file("gl.spec.fixes")
+			result += get_text_contents(c)
+	return result
+
+def parse_file(fn):
+	doc = xml.dom.minidom.parse(fn)
+	root = doc.documentElement
+	commands = get_nested_elements(root, "commands/command")
+	for cmd in commands:
+		name = get_text_contents(get_nested_elements(cmd, "proto/name")[0])
+		func = funcs.get(name)
+		if not func:
+			func = Function(name)
+			funcs[name] = func
+
+		aliases = cmd.getElementsByTagName("alias")
+		for a in aliases:
+			func.aliases.append(a.getAttribute("name"))
+
+		vec = cmd.getElementsByTagName("vecequiv")
+		if vec:
+			func.vectorequiv = vec[0].getAttribute("name")
+
+	features = root.getElementsByTagName("feature")
+	for feat in features:
+		api = feat.getAttribute("api")
+		if api=="gl":
+			version = feat.getAttribute("number")
+
+			commands = get_nested_elements(feat, "require/command")
+			for c in commands:
+				name = c.getAttribute("name")
+				func = funcs.get(name)
+				if func:
+					func.version = version
+
+			if feat.getAttribute("name")=="MSPGL_REMOVE":
+				commands = get_nested_elements(feat, "remove/command")
+				for c in commands:
+					name = c.getAttribute("name")
+					if name in funcs:
+						del funcs[name]
+
+	extensions = get_nested_elements(root, "extensions/extension")
+	for ext in extensions:
+		ext_name = ext.getAttribute("name")
+		if ext_name.startswith("GL_"):
+			ext_name = ext_name[3:]
+		supported = ext.getAttribute("supported").split('|')
+		if "gl" in supported:
+			commands = get_nested_elements(ext, "require/command")
+			for c in commands:
+				name = c.getAttribute("name")
+				func = funcs.get(name)
+				if func:
+					func.category = ext_name
+
+parse_file("gl.xml")
+parse_file("gl.fixes.xml")
 
 for f in funcs.itervalues():
 	if f.category==ext or f.category in secondary:
-		if not f.aliases and f.vectorequiv:
-			for g in funcs.itervalues():
-				if g!=f and g.vectorequiv==f.vectorequiv and f.name.startswith(g.name):
-					f.aliases.append(g.name)
-					break
-
 		for a in f.aliases:
-			if a in funcs:
-				funcs[a].extfunc = f
+			aliasfunc = funcs.get(a)
+			if aliasfunc:
+				aliasfunc.extfunc = f
 
 def is_relevant(f):
 	if f.category==ext and not f.aliases:
@@ -111,16 +152,16 @@ funcs = [f for f in funcs.itervalues() if is_relevant(f)]
 funcs.sort(key=(lambda f: f.name))
 
 for f in funcs:
+	if not ver:
+		ver = f.version
+
+	if f.category and not f.name.endswith(exttype):
+		bp_ext = f.category
+
 	if f.extfunc:
-		f.typedef = "PFNGL%sPROC"%f.extfunc.name.upper()
-		if not ver:
-			ver = f.version
-		if not f.category.startswith("VERSION_"):
-			bp_ext = f.category
+		f.typedef = "PFN%sPROC"%f.extfunc.name.upper()
 	else:
-		f.typedef = "PFNGL%sPROC"%f.name.upper()
-		if not f.name.endswith(exttype):
-			bp_ext = f.category
+		f.typedef = "PFN%sPROC"%f.name.upper()
 
 if ver:
 	ver = map(int, ver.split('.'))
@@ -140,7 +181,7 @@ namespace GL {
 if funcs:
 	out.write("\n")
 for f in funcs:
-	out.write("extern %s gl%s;\n"%(f.typedef, f.name))
+	out.write("extern %s %s;\n"%(f.typedef, f.name))
 
 out.write("\nextern Extension %s;\n"%ext)
 
@@ -162,7 +203,7 @@ namespace GL {
 if funcs:
 	out.write("\n")
 for f in funcs:
-	out.write("%s gl%s = 0;\n"%(f.typedef, f.name))
+	out.write("%s %s = 0;\n"%(f.typedef, f.name))
 
 out.write("\nExtension::SupportLevel init_%s()\n{\n"%ext.lower())
 if ver:
@@ -171,7 +212,7 @@ if ver:
 		out.write(" || is_supported(\"GL_%s\")"%bp_ext)
 	out.write(")\n\t{\n")
 	for f in funcs:
-		out.write("\t\tgl%s = reinterpret_cast<%s>(get_proc_address(\"gl%s\"));\n"%(f.name, f.typedef, f.name))
+		out.write("\t\t%s = reinterpret_cast<%s>(get_proc_address(\"%s\"));\n"%(f.name, f.typedef, f.name))
 	out.write("\t\treturn Extension::CORE;\n")
 	out.write("\t}\n")
 if ext!=bp_ext:
@@ -180,7 +221,7 @@ if ext!=bp_ext:
 		n = f.name
 		if f.extfunc:
 			n = f.extfunc.name
-		out.write("\t\tgl%s = reinterpret_cast<%s>(get_proc_address(\"gl%s\"));\n"%(f.name, f.typedef, n))
+		out.write("\t\t%s = reinterpret_cast<%s>(get_proc_address(\"%s\"));\n"%(f.name, f.typedef, n))
 	out.write("\t\treturn Extension::EXTENSION;\n")
 	out.write("\t}\n")
 out.write("\treturn Extension::UNSUPPORTED;\n")