1 #!/usr/bin/env python 2 3 # (C) Copyright IBM Corporation 2004, 2005 4 # All Rights Reserved. 5 # 6 # Permission is hereby granted, free of charge, to any person obtaining a 7 # copy of this software and associated documentation files (the "Software"), 8 # to deal in the Software without restriction, including without limitation 9 # on the rights to use, copy, modify, merge, publish, distribute, sub 10 # license, and/or sell copies of the Software, and to permit persons to whom 11 # the Software is furnished to do so, subject to the following conditions: 12 # 13 # The above copyright notice and this permission notice (including the next 14 # paragraph) shall be included in all copies or substantial portions of the 15 # Software. 16 # 17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 # FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 20 # IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 23 # IN THE SOFTWARE. 24 # 25 # Authors: 26 # Ian Romanick <idr (at] us.ibm.com> 27 28 import argparse 29 30 import license 31 import gl_XML 32 import glX_XML 33 34 35 class PrintGlProcs(gl_XML.gl_print_base): 36 def __init__(self, es=False): 37 gl_XML.gl_print_base.__init__(self) 38 39 self.es = es 40 self.name = "gl_procs.py (from Mesa)" 41 self.license = license.bsd_license_template % ( \ 42 """Copyright (C) 1999-2001 Brian Paul All Rights Reserved. 43 (C) Copyright IBM Corporation 2004, 2006""", "BRIAN PAUL, IBM") 44 45 def printRealHeader(self): 46 print """ 47 /* This file is only included by glapi.c and is used for 48 * the GetProcAddress() function 49 */ 50 51 typedef struct { 52 GLint Name_offset; 53 #if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING) 54 _glapi_proc Address; 55 #endif 56 GLuint Offset; 57 } glprocs_table_t; 58 59 #if !defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING) 60 # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , o } 61 #elif defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING) 62 # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f1 , o } 63 #elif defined(NEED_FUNCTION_POINTER) && defined(GLX_INDIRECT_RENDERING) 64 # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f2 , o } 65 #elif !defined(NEED_FUNCTION_POINTER) && defined(GLX_INDIRECT_RENDERING) 66 # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f3 , o } 67 #endif 68 69 """ 70 return 71 72 def printRealFooter(self): 73 print '' 74 print '#undef NAME_FUNC_OFFSET' 75 return 76 77 def printFunctionString(self, name): 78 print ' "gl%s\\0"' % (name) 79 80 def printBody(self, api): 81 print '' 82 print 'static const char gl_string_table[] =' 83 84 base_offset = 0 85 table = [] 86 for func in api.functionIterateByOffset(): 87 name = func.dispatch_name() 88 self.printFunctionString(func.name) 89 table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.offset)) 90 91 # The length of the function's name, plus 2 for "gl", 92 # plus 1 for the NUL. 93 94 base_offset += len(func.name) + 3 95 96 97 for func in api.functionIterateByOffset(): 98 for n in func.entry_points: 99 if n != func.name: 100 name = func.dispatch_name() 101 self.printFunctionString( n ) 102 103 if func.has_different_protocol(n): 104 alt_name = "gl" + func.static_glx_name(n) 105 table.append((base_offset, "gl" + name, alt_name, alt_name, func.offset)) 106 else: 107 table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.offset)) 108 109 base_offset += len(n) + 3 110 111 112 print ' ;' 113 print '' 114 print '' 115 print "#ifdef USE_MGL_NAMESPACE" 116 for func in api.functionIterateByOffset(): 117 for n in func.entry_points: 118 if (not func.is_static_entry_point(func.name)) or (func.has_different_protocol(n) and not func.is_static_entry_point(n)): 119 print '#define gl_dispatch_stub_%u mgl_dispatch_stub_%u' % (func.offset, func.offset) 120 break 121 print "#endif /* USE_MGL_NAMESPACE */" 122 print '' 123 print '' 124 print '#if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING)' 125 for func in api.functionIterateByOffset(): 126 for n in func.entry_points: 127 if (not func.is_static_entry_point(func.name)) or (func.has_different_protocol(n) and not func.is_static_entry_point(n)): 128 print '%s GLAPIENTRY gl_dispatch_stub_%u(%s);' % (func.return_type, func.offset, func.get_parameter_string()) 129 break 130 131 if self.es: 132 categories = {} 133 for func in api.functionIterateByOffset(): 134 for n in func.entry_points: 135 cat, num = api.get_category_for_name(n) 136 if (cat.startswith("es") or cat.startswith("GL_OES")): 137 if not categories.has_key(cat): 138 categories[cat] = [] 139 proto = 'GLAPI %s GLAPIENTRY %s(%s);' \ 140 % (func.return_type, "gl" + n, func.get_parameter_string(n)) 141 categories[cat].append(proto) 142 if categories: 143 print '' 144 print '/* OpenGL ES specific prototypes */' 145 print '' 146 keys = categories.keys() 147 keys.sort() 148 for key in keys: 149 print '/* category %s */' % key 150 print "\n".join(categories[key]) 151 print '' 152 153 print '#endif /* defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING) */' 154 155 print '' 156 print 'static const glprocs_table_t static_functions[] = {' 157 158 for info in table: 159 print ' NAME_FUNC_OFFSET(%5u, %s, %s, %s, %d),' % info 160 161 print ' NAME_FUNC_OFFSET(-1, NULL, NULL, NULL, 0)' 162 print '};' 163 return 164 165 166 def _parser(): 167 """Parse arguments and return a namepsace.""" 168 169 parser = argparse.ArgumentParser() 170 parser.add_argument('-f', '--filename', 171 default='gl_API.xml', 172 metavar="input_file_name", 173 dest='file_name', 174 help="Path to an XML description of OpenGL API.") 175 parser.add_argument('-c', '--es-version', 176 dest='es', 177 action="store_true", 178 help="filter functions for es") 179 return parser.parse_args() 180 181 182 def main(): 183 """Main function.""" 184 args = _parser() 185 api = gl_XML.parse_GL_API(args.file_name, glX_XML.glx_item_factory()) 186 PrintGlProcs(args.es).Print(api) 187 188 189 if __name__ == '__main__': 190 main() 191
