Added glapi/gen directory of mesalib

1 files changed, 120 insertions, 0 deletions

diff --git a/mesalib/src/mesa/glapi/gen/gl_offsets.py b/mesalib/src/mesa/glapi/gen/gl_offsets.py
new file mode 100644
index 000000000..54867b346
--- /dev/null
+++ b/mesalib/src/mesa/glapi/gen/gl_offsets.py
@@ -0,0 +1,120 @@
+#!/usr/bin/env python
+
+# (C) Copyright IBM Corporation 2004, 2005
+# All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# on the rights to use, copy, modify, merge, publish, distribute, sub
+# license, and/or sell copies of the Software, and to permit persons to whom
+# the Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+#
+# Authors:
+#    Ian Romanick <idr@us.ibm.com>
+
+import gl_XML
+import license
+import sys, getopt
+
+class PrintGlOffsets(gl_XML.gl_print_base):
+	def __init__(self, es=False):
+		gl_XML.gl_print_base.__init__(self)
+
+		self.es = es
+		self.name = "gl_offsets.py (from Mesa)"
+		self.header_tag = '_GLAPI_OFFSETS_H_'
+		self.license = license.bsd_license_template % ( \
+"""Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
+		return
+
+	def printBody(self, api):
+		print '/* this file should not be included directly in mesa */'
+		print ''
+
+		functions = []
+		abi_functions = []
+		alias_functions = []
+		count = 0
+		for f in api.functionIterateByOffset():
+			if not f.is_abi():
+				functions.append( [f, count] )
+				count += 1
+			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 _gloffset_%s %d' % (f.name, f.offset)
+			last_static = f.offset
+
+		print ''
+		print '#if !defined(_GLAPI_USE_REMAP_TABLE)'
+		print ''
+
+		for [f, index] in functions:
+			print '#define _gloffset_%s %d' % (f.name, f.offset)
+
+		print '#define _gloffset_FIRST_DYNAMIC %d' % (api.next_offset)
+
+		print ''
+		print '#else'
+		print ''
+
+		for [f, index] in functions:
+			print '#define _gloffset_%s driDispatchRemapTable[%s_remap_index]' % (f.name, f.name)
+
+		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 _gloffset_%s _gloffset_%s' % (name, f.name)
+		return
+
+
+def show_usage():
+	print "Usage: %s [-f input_file_name] [-c]" % sys.argv[0]
+	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:c")
+	except Exception,e:
+		show_usage()
+
+	es = False
+	for (arg,val) in args:
+		if arg == "-f":
+			file_name = val
+		elif arg == "-c":
+			es = True
+
+	api = gl_XML.parse_GL_API( file_name )
+
+	printer = PrintGlOffsets(es)
+	printer.Print( api )