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#!/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>
from xml.sax import saxutils
from xml.sax import make_parser
from xml.sax.handler import feature_namespaces
import gl_XML
import glX_XML
import license
import sys, getopt, copy
class SizeStubFunctionIterator:
"""Iterate over functions that need "size" information.
Iterate over the functions that have variable sized data. First the
"set"-type functions are iterated followed by the "get"-type
functions.
"""
def __init__(self, context):
self.data = []
self.index = 0
set_functions = []
get_functions = []
extra_data = []
for f in gl_XML.glFunctionIterator(context):
if f.fn_offset < 0: break
if context.glx_enum_functions.has_key(f.name):
ef = context.glx_enum_functions[f.name]
if ef.is_set():
set_functions.append(f)
else:
get_functions.append(f)
if (context.which_functions & PrintGlxSizeStubs_c.do_set) != 0:
self.data += set_functions
elif context.get_alias_set:
extra_data = set_functions
if (context.which_functions & PrintGlxSizeStubs_c.do_get) != 0:
self.data += get_functions
for f in extra_data + self.data:
sig = context.glx_enum_functions[f.name].signature()
if not context.glx_enum_sigs.has_key(sig):
context.glx_enum_sigs[sig] = f.name;
return
def __iter__(self):
return self
def next(self):
if self.index == len(self.data):
raise StopIteration
f = self.data[ self.index ]
self.index += 1
return f
class PrintGlxSizeStubs_common(glX_XML.GlxProto):
do_get = (1 << 0)
do_set = (1 << 1)
do_get_alias_set = (1 << 2)
def __init__(self, which_functions):
glX_XML.GlxProto.__init__(self)
self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
self.aliases = []
self.glx_enum_sigs = {}
self.name = "glX_proto_size.py (from Mesa)"
self.which_functions = which_functions
if (((which_functions & PrintGlxSizeStubs_common.do_set) != 0) and ((which_functions & PrintGlxSizeStubs_common.do_get) != 0)) or ((which_functions & PrintGlxSizeStubs_common.do_get_alias_set) != 0):
self.get_alias_set = 1
else:
self.get_alias_set = 0
def functionIterator(self):
return SizeStubFunctionIterator(self)
class PrintGlxSizeStubs_c(PrintGlxSizeStubs_common):
def printRealHeader(self):
print ''
print '#include <GL/gl.h>'
print '#include "indirect_size.h"'
print ''
glX_XML.printHaveAlias()
print ''
glX_XML.printPure()
print ''
glX_XML.printFastcall()
print ''
glX_XML.printVisibility( "INTERNAL", "internal" )
print ''
print ''
print '#ifdef HAVE_ALIAS'
print '# define ALIAS2(from,to) \\'
print ' INTERNAL PURE FASTCALL GLint __gl ## from ## _size( GLenum e ) \\'
print ' __attribute__ ((alias( # to )));'
print '# define ALIAS(from,to) ALIAS2( from, __gl ## to ## _size )'
print '#else'
print '# define ALIAS(from,to) \\'
print ' INTERNAL PURE FASTCALL GLint __gl ## from ## _size( GLenum e ) \\'
print ' { return __gl ## to ## _size( e ); }'
print '#endif'
print ''
print ''
def printRealFooter(self):
for a in self.aliases:
print a
def printFunction(self, f):
ef = self.glx_enum_functions[f.name]
n = self.glx_enum_sigs[ ef.signature() ];
if n != f.name:
a = 'ALIAS( %s, %s )' % (f.name, n)
self.aliases.append(a)
else:
ef.Print( f.name )
class PrintGlxSizeStubs_h(PrintGlxSizeStubs_common):
def printRealHeader(self):
print """/**
* \\file
* Prototypes for functions used to determine the number of data elements in
* various GLX protocol messages.
*
* \\author Ian Romanick <idr@us.ibm.com>
*/
"""
glX_XML.printPure();
print ''
glX_XML.printFastcall();
print ''
glX_XML.printVisibility( "INTERNAL", "internal" );
print ''
def printRealFooter(self):
print ''
print "# undef INTERNAL"
print "# undef PURE"
print "# undef FASTCALL"
def printFunction(self, f):
ef = self.glx_enum_functions[f.name]
print 'extern INTERNAL PURE FASTCALL GLint __gl%s_size(GLenum);' % (f.name)
def show_usage():
print "Usage: %s [-f input_file_name] -m output_mode [--only-get | --only-set] [--get-alias-set]" % sys.argv[0]
print " -m output_mode Output mode can be one of 'size_c' or 'size_h'."
print " --only-get Only emit 'get'-type functions."
print " --only-set Only emit 'set'-type functions."
print " --get-alias-set When only 'get'-type functions are emitted, allow them"
print " to be aliases to 'set'-type funcitons."
print ""
print "By default, both 'get' and 'set'-type functions are emitted."
sys.exit(1)
if __name__ == '__main__':
file_name = "gl_API.xml"
try:
(args, trail) = getopt.getopt(sys.argv[1:], "f:m:h:", ["only-get", "only-set", "get-alias-set", "header-tag"])
except Exception,e:
show_usage()
mode = None
header_tag = None
which_functions = PrintGlxSizeStubs_common.do_get | PrintGlxSizeStubs_common.do_set
for (arg,val) in args:
if arg == "-f":
file_name = val
elif arg == "-m":
mode = val
elif arg == "--only-get":
which_functions = PrintGlxSizeStubs_common.do_get
elif arg == "--only-set":
which_functions = PrintGlxSizeStubs_common.do_set
elif arg == "--get-alias-set":
which_functions |= PrintGlxSizeStubs_common.do_get_alias_set
elif (arg == '-h') or (arg == "--header-tag"):
header_tag = val
if mode == "size_c":
dh = PrintGlxSizeStubs_c( which_functions )
elif mode == "size_h":
dh = PrintGlxSizeStubs_h( which_functions )
if header_tag:
dh.header_tag = header_tag
else:
show_usage()
parser = make_parser()
parser.setFeature(feature_namespaces, 0)
parser.setContentHandler(dh)
f = open(file_name)
dh.printHeader()
parser.parse(f)
dh.printFooter()
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