glapi: Add OpenGL ES compatibility mode to scripts.

When the mode is on, the scripts would generate headers that are
suitable for OpenGL ES.  There are two differences.  One is that they
will generate function prototypes for OpenGL ES specific functions.  The
other is that, when a function has multiple names, SET/GET/CALL macros
would be generated for each of names.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>

1 files changed, 38 insertions, 6 deletions

diff --git a/src/mesa/glapi/gl_table.py b/src/mesa/glapi/gl_table.py
index 698795fb0a..3bd7569e92 100644
--- a/src/mesa/glapi/gl_table.py
+++ b/src/mesa/glapi/gl_table.py
@@ -30,9 +30,10 @@ import license
 import sys, getopt
 
 class PrintGlTable(gl_XML.gl_print_base):
-	def __init__(self):
+	def __init__(self, es=False):
 		gl_XML.gl_print_base.__init__(self)
 
+		self.es = es
 		self.header_tag = '_GLAPI_TABLE_H_'
 		self.name = "gl_table.py (from Mesa)"
 		self.license = license.bsd_license_template % ( \
@@ -68,9 +69,10 @@ class PrintGlTable(gl_XML.gl_print_base):
 
 
 class PrintRemapTable(gl_XML.gl_print_base):
-	def __init__(self):
+	def __init__(self, es=False):
 		gl_XML.gl_print_base.__init__(self)
 
+		self.es = es
 		self.header_tag = '_GLAPI_DISPATCH_H_'
 		self.name = "gl_table.py (from Mesa)"
 		self.license = license.bsd_license_template % ("(C) Copyright IBM Corporation 2005", "IBM")
@@ -115,6 +117,7 @@ class PrintRemapTable(gl_XML.gl_print_base):
 
 		functions = []
 		abi_functions = []
+		alias_functions = []
 		count = 0
 		for f in api.functionIterateByOffset():
 			if not f.is_abi():
@@ -123,6 +126,11 @@ class PrintRemapTable(gl_XML.gl_print_base):
 			else:
 				abi_functions.append( f )
 
+			if self.es:
+				# remember functions with aliases
+				if len(f.entry_points) > 1:
+					alias_functions.append(f)
+
 
 		for f in abi_functions:
 			print '#define CALL_%s(disp, parameters) (*((disp)->%s)) parameters' % (f.name, f.name)
@@ -162,33 +170,57 @@ class PrintRemapTable(gl_XML.gl_print_base):
 
 		print ''
 		print '#endif /* !defined(_GLAPI_USE_REMAP_TABLE) */'
+
+		if alias_functions:
+			print ''
+			print '/* define aliases for compatibility */'
+			for f in alias_functions:
+				for name in f.entry_points:
+					if name != f.name:
+						print '#define CALL_%s(disp, parameters) CALL_%s(disp, parameters)' % (name, f.name)
+						print '#define GET_%s(disp) GET_%s(disp)' % (name, f.name)
+						print '#define SET_%s(disp, fn) SET_%s(disp, fn)' % (name, f.name)
+			print ''
+
+			print '#if defined(_GLAPI_USE_REMAP_TABLE)'
+			for f in alias_functions:
+				for name in f.entry_points:
+					if name != f.name:
+						print '#define %s_remap_index %s_remap_index' % (name, f.name)
+			print '#endif /* defined(_GLAPI_USE_REMAP_TABLE) */'
+			print ''
+
 		return
 
 
 def show_usage():
-	print "Usage: %s [-f input_file_name] [-m mode]" % sys.argv[0]
+	print "Usage: %s [-f input_file_name] [-m mode] [-c]" % sys.argv[0]
 	print "    -m mode   Mode can be 'table' or 'remap_table'."
+	print "    -c        Enable compatibility with OpenGL ES."
 	sys.exit(1)
 
 if __name__ == '__main__':
 	file_name = "gl_API.xml"
     
 	try:
-		(args, trail) = getopt.getopt(sys.argv[1:], "f:m:")
+		(args, trail) = getopt.getopt(sys.argv[1:], "f:m:c")
 	except Exception,e:
 		show_usage()
 
 	mode = "table"
+	es = False
 	for (arg,val) in args:
 		if arg == "-f":
 			file_name = val
 		elif arg == "-m":
 			mode = val
+		elif arg == "-c":
+			es = True
 
 	if mode == "table":
-		printer = PrintGlTable()
+		printer = PrintGlTable(es)
 	elif mode == "remap_table":
-		printer = PrintRemapTable()
+		printer = PrintRemapTable(es)
 	else:
 		show_usage()