1#!/usr/bin/env python
2
3# (C) Copyright IBM Corporation 2004, 2005
4# All Rights Reserved.
5#
6# Permission is hereby granted, free of charge, to any person obtaining a
7# copy of this software and associated documentation files (the "Software"),
8# to deal in the Software without restriction, including without limitation
9# on the rights to use, copy, modify, merge, publish, distribute, sub
10# license, and/or sell copies of the Software, and to permit persons to whom
11# the Software is furnished to do so, subject to the following conditions:
12#
13# The above copyright notice and this permission notice (including the next
14# paragraph) shall be included in all copies or substantial portions of the
15# Software.
16#
17# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
20# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
23# IN THE SOFTWARE.
24#
25# Authors:
26#    Ian Romanick <idr@us.ibm.com>
27
28import gl_XML
29import license
30import sys, getopt
31
32class PrintGlOffsets(gl_XML.gl_print_base):
33	def __init__(self, es=False):
34		gl_XML.gl_print_base.__init__(self)
35
36		self.es = es
37		self.name = "gl_offsets.py (from Mesa)"
38		self.header_tag = '_GLAPI_OFFSETS_H_'
39		self.license = license.bsd_license_template % ( \
40"""Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
41(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
42		return
43
44	def printBody(self, api):
45		print '/* this file should not be included directly in mesa */'
46		print ''
47
48		functions = []
49		abi_functions = []
50		alias_functions = []
51		count = 0
52		for f in api.functionIterateByOffset():
53			if not f.is_abi():
54				functions.append( [f, count] )
55				count += 1
56			else:
57				abi_functions.append( f )
58
59			if self.es:
60				# remember functions with aliases
61				if len(f.entry_points) > 1:
62					alias_functions.append(f)
63
64		for f in abi_functions:
65			print '#define _gloffset_%s %d' % (f.name, f.offset)
66			last_static = f.offset
67
68		print ''
69		print '#if !defined(_GLAPI_USE_REMAP_TABLE)'
70		print ''
71
72		for [f, index] in functions:
73			print '#define _gloffset_%s %d' % (f.name, f.offset)
74
75		print '#define _gloffset_FIRST_DYNAMIC %d' % (api.next_offset)
76
77		print ''
78		print '#else'
79		print ''
80
81		for [f, index] in functions:
82			print '#define _gloffset_%s driDispatchRemapTable[%s_remap_index]' % (f.name, f.name)
83
84		print ''
85		print '#endif /* !defined(_GLAPI_USE_REMAP_TABLE) */'
86
87		if alias_functions:
88			print ''
89			print '/* define aliases for compatibility */'
90			for f in alias_functions:
91				for name in f.entry_points:
92					if name != f.name:
93						print '#define _gloffset_%s _gloffset_%s' % (name, f.name)
94		return
95
96
97def show_usage():
98	print "Usage: %s [-f input_file_name] [-c]" % sys.argv[0]
99	print "    -c        Enable compatibility with OpenGL ES."
100	sys.exit(1)
101
102if __name__ == '__main__':
103	file_name = "gl_API.xml"
104
105	try:
106		(args, trail) = getopt.getopt(sys.argv[1:], "f:c")
107	except Exception,e:
108		show_usage()
109
110	es = False
111	for (arg,val) in args:
112		if arg == "-f":
113			file_name = val
114		elif arg == "-c":
115			es = True
116
117	api = gl_XML.parse_GL_API( file_name )
118
119	printer = PrintGlOffsets(es)
120	printer.Print( api )
121