src/mapi/glapi/gen/gl_gentable.py

   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
  32 import license
  33 import gl_XML, glX_XML
  34 import sys, getopt
  35
  36 header = """
  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
  47 struct _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
  56 footer = """
  57     return disp;
  58 }
  59 """
  60
  61 body_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
  68 class 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
 112 def show_usage():
 113         print "Usage: %s [-f input_file_name]" % sys.argv[0]
 114         sys.exit(1)
 115
 116 if __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)