gl_gentable.py revision 85937f4c0d4a78d3a11e3c1fa6148640f2a9ad7b 
1#!/usr/bin/env python
2
3# (C) Copyright IBM Corporation 2004, 2005
4# (C) Copyright Apple Inc. 2011
5# All Rights Reserved.
6#
7# Permission is hereby granted, free of charge, to any person obtaining a
8# copy of this software and associated documentation files (the "Software"),
9# to deal in the Software without restriction, including without limitation
10# on the rights to use, copy, modify, merge, publish, distribute, sub
11# license, and/or sell copies of the Software, and to permit persons to whom
12# the Software is furnished to do so, subject to the following conditions:
13#
14# The above copyright notice and this permission notice (including the next
15# paragraph) shall be included in all copies or substantial portions of the
16# Software.
17#
18# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
21# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24# IN THE SOFTWARE.
25#
26# Authors:
27#    Jeremy Huddleston <jeremyhu@apple.com>
28#
29# Based on code ogiginally by:
30#    Ian Romanick <idr@us.ibm.com>
31
32import license
33import gl_XML, glX_XML
34import sys, getopt
35
36header = """
37#include <dlfcn.h>
38#include <stdlib.h>
39#include <stdio.h>
40
41#include <GL/gl.h>
42
43#include "glapi.h"
44#include "glapitable.h"
45#include "main/dispatch.h"
46
47struct _glapi_table *
48_glapi_create_table_from_handle(void *handle, const char *symbol_prefix) {
49    struct _glapi_table *disp = calloc(1, sizeof(struct _glapi_table));
50    char symboln[512];
51
52    if(!disp)
53         return NULL;
54"""
55
56footer = """
57    return disp;
58}
59"""
60
61body_template = """
62    if(!disp->%(name)s) {
63         snprintf(symboln, sizeof(symboln), "%%s%(entry_point)s", symbol_prefix);
64         SET_%(name)s(disp, dlsym(handle, symboln));
65    }
66"""
67
68class PrintCode(gl_XML.gl_print_base):
69
70	def __init__(self):
71		gl_XML.gl_print_base.__init__(self)
72
73		self.name = "gl_gen_table.py (from Mesa)"
74		self.license = license.bsd_license_template % ( \
75"""Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
76(C) Copyright IBM Corporation 2004, 2005
77(C) Copyright Apple Inc 2011""", "BRIAN PAUL, IBM")
78
79		return
80
81
82	def get_stack_size(self, f):
83		size = 0
84		for p in f.parameterIterator():
85			if p.is_padding:
86				continue
87
88			size += p.get_stack_size()
89
90		return size
91
92
93	def printRealHeader(self):
94		print header
95		return
96
97
98	def printRealFooter(self):
99		print footer
100		return
101
102
103	def printBody(self, api):
104		for f in api.functionIterateByOffset():
105			for entry_point in f.entry_points:
106				vars = { 'entry_point' : entry_point,
107				         'name' : f.name }
108
109				print body_template % vars
110		return
111
112def show_usage():
113	print "Usage: %s [-f input_file_name]" % sys.argv[0]
114	sys.exit(1)
115
116if __name__ == '__main__':
117	file_name = "gl_API.xml"
118
119	try:
120		(args, trail) = getopt.getopt(sys.argv[1:], "m:f:")
121	except Exception,e:
122		show_usage()
123
124	for (arg,val) in args:
125		if arg == "-f":
126			file_name = val
127
128	printer = PrintCode()
129
130	api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory())
131	printer.Print(api)
132