text: #!/usr/bin/python2
  
  # (C) Copyright IBM Corporation 2004
  # 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 PrintGlTable(gl_XML.gl_print_base):
  	def __init__(self, es=False):
  		gl_XML.gl_print_base.__init__(self)
  
  		self.es = es
  		self.header_tag = '_GLAPI_TABLE_H_'
  		self.name = "gl_table.py (from Mesa)"
  		self.license = license.bsd_license_template % ( \
  """Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
  (C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
  		return
  
  
  	def printBody(self, api):
  		for f in api.functionIterateByOffset():
  			arg_string = f.get_parameter_string()
  			print '   %s (GLAPIENTRYP %s)(%s); /* %d */' % (f.return_type, f.name, arg_string, f.offset)
  
  
  	def printRealHeader(self):
  		print '#ifndef GLAPIENTRYP'
  		print '# ifndef GLAPIENTRY'
  		print '#  define GLAPIENTRY'
  		print '# endif'
  		print ''
  		print '# define GLAPIENTRYP GLAPIENTRY *'
  		print '#endif'
  		print ''
  		print ''
  		print 'struct _glapi_table'
  		print '{'
  		return
  
  
  	def printRealFooter(self):
  		print '};'
  		return
  
  
  class PrintRemapTable(gl_XML.gl_print_base):
  	def __init__(self, es=False):
  		gl_XML.gl_print_base.__init__(self)
  
  		self.es = es
  		self.header_tag = '_GLAPI_DISPATCH_H_'
  		self.name = "gl_table.py (from Mesa)"
  		self.license = license.bsd_license_template % ("(C) Copyright IBM Corporation 2005", "IBM")
  		return
  
  
  	def printRealHeader(self):
  		print """
  /* this file should not be included directly in mesa */
  
  /**
   * \\file glapidispatch.h
   * Macros for handling GL dispatch tables.
   *
   * For each known GL function, there are 3 macros in this file.  The first
   * macro is named CALL_FuncName and is used to call that GL function using
   * the specified dispatch table.  The other 2 macros, called GET_FuncName
   * can SET_FuncName, are used to get and set the dispatch pointer for the
   * named function in the specified dispatch table.
   */
  """
  		
  		return
  
  	def printBody(self, api):
  		print '#define CALL_by_offset(disp, cast, offset, parameters) \\'
  		print '    (*(cast (GET_by_offset(disp, offset)))) parameters'
  		print '#define GET_by_offset(disp, offset) \\'
  		print '    (offset >= 0) ? (((_glapi_proc *)(disp))[offset]) : NULL'
  		print '#define SET_by_offset(disp, offset, fn) \\'
  		print '    do { \\'
  		print '        if ( (offset) < 0 ) { \\'
  		print '            /* fprintf( stderr, "[%s:%u] SET_by_offset(%p, %d, %s)!\\n", */ \\'
  		print '            /*         __func__, __LINE__, disp, offset, # fn); */ \\'
  		print '            /* abort(); */ \\'
  		print '        } \\'
  		print '        else { \\'
  		print '            ( (_glapi_proc *) (disp) )[offset] = (_glapi_proc) fn; \\'
  		print '        } \\'
  		print '    } while(0)'
  		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 CALL_%s(disp, parameters) (*((disp)->%s)) parameters' % (f.name, f.name)
  			print '#define GET_%s(disp) ((disp)->%s)' % (f.name, f.name)
  			print '#define SET_%s(disp, fn) ((disp)->%s = fn)' % (f.name, f.name)
  
  
  		print ''
  		print '#if !defined(_GLAPI_USE_REMAP_TABLE)'
  		print ''
  
  		for [f, index] in functions:
  			print '#define CALL_%s(disp, parameters) (*((disp)->%s)) parameters' % (f.name, f.name)
  			print '#define GET_%s(disp) ((disp)->%s)' % (f.name, f.name)
  			print '#define SET_%s(disp, fn) ((disp)->%s = fn)' % (f.name, f.name)
  
  		print ''
  		print '#else'
  		print ''
  		print '#define driDispatchRemapTable_size %u' % (count)
  		print 'extern int driDispatchRemapTable[ driDispatchRemapTable_size ];'
  		print ''
  
  		for [f, index] in functions:
  			print '#define %s_remap_index %u' % (f.name, index)
  
  		print ''
  
  		for [f, index] in functions:
  			arg_string = gl_XML.create_parameter_string( f.parameters, 0 )
  			cast = '%s (GLAPIENTRYP)(%s)' % (f.return_type, arg_string)
  
  			print '#define CALL_%s(disp, parameters) CALL_by_offset(disp, (%s), driDispatchRemapTable[%s_remap_index], parameters)' % (f.name, cast, f.name)
  			print '#define GET_%s(disp) GET_by_offset(disp, driDispatchRemapTable[%s_remap_index])' % (f.name, f.name)
  			print '#define SET_%s(disp, fn) SET_by_offset(disp, driDispatchRemapTable[%s_remap_index], fn)' % (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 CALL_%s(disp, parameters) CALL_%s(disp, parameters)' % (name, f.name)
  						print '#define GET_%s(disp) GET_%s(disp)' % (name, f.name)
  						print '#define SET_%s(disp, fn) SET_%s(disp, fn)' % (name, f.name)
  			print ''
  
  			print '#if defined(_GLAPI_USE_REMAP_TABLE)'
  			for f in alias_functions:
  				for name in f.entry_points:
  					if name != f.name:
  						print '#define %s_remap_index %s_remap_index' % (name, f.name)
  			print '#endif /* defined(_GLAPI_USE_REMAP_TABLE) */'
  			print ''
  
  		return
  
  
  def show_usage():
  	print "Usage: %s [-f input_file_name] [-m mode] [-c]" % sys.argv[0]
  	print "    -m mode   Mode can be 'table' or 'remap_table'."
  	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:m:c")
  	except Exception,e:
  		show_usage()
  
  	mode = "table"
  	es = False
  	for (arg,val) in args:
  		if arg == "-f":
  			file_name = val
  		elif arg == "-m":
  			mode = val
  		elif arg == "-c":
  			es = True
  
  	if mode == "table":
  		printer = PrintGlTable(es)
  	elif mode == "remap_table":
  		printer = PrintRemapTable(es)
  	else:
  		show_usage()
  
  	api = gl_XML.parse_GL_API( file_name )
  
  	printer.Print( api )
  