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#!/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):
gl_XML.gl_print_base.__init__(self)
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 '#define GLAPIENTRYP'
print '#endif'
print ''
print 'typedef void (*_glapi_proc)(void); /* generic function pointer */'
print ''
print 'struct _glapi_table'
print '{'
return
def printRealFooter(self):
print '};'
return
class PrintRemapTable(gl_XML.gl_print_base):
def __init__(self):
gl_XML.gl_print_base.__init__(self)
self.header_tag = '_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 """/**
* \\file dispatch.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 ''
abi = [ "1.0", "1.1", "1.2", "GL_ARB_multitexture" ]
functions = []
abi_functions = []
count = 0
for f in api.functionIterateByOffset():
[category, num] = api.get_category_for_name( f.name )
if category not in abi:
functions.append( [f, count] )
count += 1
else:
abi_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(IN_DRI_DRIVER)'
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(IN_DRI_DRIVER) */'
return
def show_usage():
print "Usage: %s [-f input_file_name] [-m mode]" % sys.argv[0]
print " -m mode Mode can be 'table' or 'remap_table'."
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()
mode = "table"
for (arg,val) in args:
if arg == "-f":
file_name = val
elif arg == "-m":
mode = val
if mode == "table":
printer = PrintGlTable()
elif mode == "remap_table":
printer = PrintRemapTable()
else:
show_usage()
api = gl_XML.parse_GL_API( file_name )
printer.Print( api )
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