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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>
import license
import gl_XML
import sys, getopt
class PrintGlProcs(gl_XML.gl_print_base):
def __init__(self, long_strings):
gl_XML.gl_print_base.__init__(self)
self.long_strings = long_strings
self.name = "gl_procs.py (from Mesa)"
self.license = license.bsd_license_template % ( \
"""Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
def printRealHeader(self):
print '/* This file is only included by glapi.c and is used for'
print ' * the GetProcAddress() function'
print ' */'
print ''
print 'typedef struct {'
print ' GLint Name_offset;'
print '#ifdef NEED_FUNCTION_POINTER'
print ' _glapi_proc Address;'
print '#endif'
print ' GLuint Offset;'
print '} glprocs_table_t;'
print ''
print '#ifdef NEED_FUNCTION_POINTER'
print '# define NAME_FUNC_OFFSET(n,f,o) { n , (_glapi_proc) f , o }'
print '#else'
print '# define NAME_FUNC_OFFSET(n,f,o) { n , o }'
print '#endif'
print ''
return
def printRealFooter(self):
print ''
print '#undef NAME_FUNC_OFFSET'
return
def printFunctionString(self, name):
if self.long_strings:
print ' "gl%s\\0"' % (name)
else:
print " 'g','l',",
for c in name:
print "'%s'," % (c),
print "'\\0',"
def printBody(self, api):
print ''
if self.long_strings:
print 'static const char gl_string_table[] ='
else:
print 'static const char gl_string_table[] = {'
base_offset = 0
table = []
for func in api.functionIterateByOffset():
name = func.dispatch_name()
self.printFunctionString(func.name)
table.append((base_offset, name, func.name))
# The length of the function's name, plus 2 for "gl",
# plus 1 for the NUL.
base_offset += len(func.name) + 3
for func in api.functionIterateByOffset():
for n in func.entry_points:
if n != func.name:
name = func.dispatch_name()
self.printFunctionString( n )
table.append((base_offset, name, func.name))
base_offset += len(n) + 3
if self.long_strings:
print ' ;'
else:
print '};'
print ''
print '/* FIXME: Having these (incorrect) prototypes here is ugly. */'
print '#ifdef NEED_FUNCTION_POINTER'
for func in api.functionIterateByOffset():
for n in func.entry_points:
if not func.is_static_entry_point(func.name):
print 'extern void gl_dispatch_stub_%u(void);' % (func.offset)
break
print '#endif /* NEED_FUNCTION_POINTER */'
print ''
print 'static const glprocs_table_t static_functions[] = {'
for (offset, disp_name, real_name) in table:
print ' NAME_FUNC_OFFSET( %5u, gl%s, _gloffset_%s ),' % (offset, disp_name, real_name)
print ' NAME_FUNC_OFFSET( -1, NULL, 0 )'
print '};'
return
def show_usage():
print "Usage: %s [-f input_file_name] [-m mode]" % sys.argv[0]
print "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 "
print " ANSI C89 string constants."
sys.exit(1)
if __name__ == '__main__':
file_name = "gl_API.xml"
try:
(args, trail) = getopt.getopt(sys.argv[1:], "f:m:")
except Exception,e:
show_usage()
long_string = 1
for (arg,val) in args:
if arg == "-f":
file_name = val
elif arg == "-m":
if val == "short":
long_string = 0
elif val == "long":
long_string = 1
else:
show_usage()
api = gl_XML.parse_GL_API( file_name )
printer = PrintGlProcs( long_string )
printer.Print( api )
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