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, 32 insertions, 5 deletions

diff --git a/src/mesa/glapi/gl_procs.py b/src/mesa/glapi/gl_procs.py
index cd1a68cee1..5de61fbdfe 100644
--- a/src/mesa/glapi/gl_procs.py
+++ b/src/mesa/glapi/gl_procs.py
@@ -30,9 +30,10 @@ import gl_XML, glX_XML
 import sys, getopt
 
 class PrintGlProcs(gl_XML.gl_print_base):
-	def __init__(self, long_strings):
+	def __init__(self, long_strings, es=False):
 		gl_XML.gl_print_base.__init__(self)
 
+		self.es = es
 		self.long_strings = long_strings
 		self.name = "gl_procs.py (from Mesa)"
 		self.license = license.bsd_license_template % ( \
@@ -141,6 +142,28 @@ typedef struct {
 					print '%s GLAPIENTRY gl_dispatch_stub_%u(%s);' % (func.return_type, func.offset, func.get_parameter_string())
 					break
 
+		if self.es:
+			categories = {}
+			for func in api.functionIterateByOffset():
+				for n in func.entry_points:
+					cat, num = api.get_category_for_name(n)
+					if (cat.startswith("es") or cat.startswith("GL_OES")):
+						if not categories.has_key(cat):
+							categories[cat] = []
+						proto = 'GLAPI %s GLAPIENTRY %s(%s);' \
+								% (func.return_type, "gl" + n, func.get_parameter_string(n))
+						categories[cat].append(proto)
+			if categories:
+				print ''
+				print '/* OpenGL ES specific prototypes */'
+				print ''
+				keys = categories.keys()
+				keys.sort()
+				for key in keys:
+					print '/* category %s */' % key
+					print "\n".join(categories[key])
+				print ''
+
 		print '#endif /* defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING) */'
 
 		print ''
@@ -155,8 +178,9 @@ typedef struct {
 
 
 def show_usage():
-	print "Usage: %s [-f input_file_name] [-m mode]" % sys.argv[0]
-	print "mode can be one of:"
+	print "Usage: %s [-f input_file_name] [-m mode] [-c]" % sys.argv[0]
+	print "-c          Enable compatibility with OpenGL ES."
+	print "-m mode     mode can be one of:"
 	print "    long  - Create code for compilers that can handle very"
 	print "            long string constants. (default)"
 	print "    short - Create code for compilers that can only handle"
@@ -167,11 +191,12 @@ 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()
 
 	long_string = 1
+	es = False
 	for (arg,val) in args:
 		if arg == "-f":
 			file_name = val
@@ -182,7 +207,9 @@ if __name__ == '__main__':
 				long_string = 1
 			else:
 				show_usage()
+		elif arg == "-c":
+		    es = True
 
 	api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory())
-	printer = PrintGlProcs(long_string)
+	printer = PrintGlProcs(long_string, es)
 	printer.Print(api)