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 license 29 import gl_XML, glX_XML 30 import sys, getopt 31 32 class PrintGlProcs(gl_XML.gl_print_base): 33 def __init__(self, long_strings, es=False): 34 gl_XML.gl_print_base.__init__(self) 35 36 self.es = es 37 self.long_strings = long_strings 38 self.name = "gl_procs.py (from Mesa)" 39 self.license = license.bsd_license_template % ( \ 40 """Copyright (C) 1999-2001 Brian Paul All Rights Reserved. 41 (C) Copyright IBM Corporation 2004, 2006""", "BRIAN PAUL, IBM") 42 43 44 def printRealHeader(self): 45 print """ 46 /* This file is only included by glapi.c and is used for 47 * the GetProcAddress() function 48 */ 49 50 typedef struct { 51 GLint Name_offset; 52 #if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING) 53 _glapi_proc Address; 54 #endif 55 GLuint Offset; 56 } glprocs_table_t; 57 58 #if !defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING) 59 # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , o } 60 #elif defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING) 61 # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f1 , o } 62 #elif defined(NEED_FUNCTION_POINTER) && defined(GLX_INDIRECT_RENDERING) 63 # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f2 , o } 64 #elif !defined(NEED_FUNCTION_POINTER) && defined(GLX_INDIRECT_RENDERING) 65 # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f3 , o } 66 #endif 67 68 """ 69 return 70 71 def printRealFooter(self): 72 print '' 73 print '#undef NAME_FUNC_OFFSET' 74 return 75 76 def printFunctionString(self, name): 77 if self.long_strings: 78 print ' "gl%s\\0"' % (name) 79 else: 80 print " 'g','l',", 81 for c in name: 82 print "'%s'," % (c), 83 84 print "'\\0'," 85 86 87 def printBody(self, api): 88 print '' 89 if self.long_strings: 90 print 'static const char gl_string_table[] =' 91 else: 92 print 'static const char gl_string_table[] = {' 93 94 base_offset = 0 95 table = [] 96 for func in api.functionIterateByOffset(): 97 name = func.dispatch_name() 98 self.printFunctionString(func.name) 99 table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.offset)) 100 101 # The length of the function's name, plus 2 for "gl", 102 # plus 1 for the NUL. 103 104 base_offset += len(func.name) + 3 105 106 107 for func in api.functionIterateByOffset(): 108 for n in func.entry_points: 109 if n != func.name: 110 name = func.dispatch_name() 111 self.printFunctionString( n ) 112 113 if func.has_different_protocol(n): 114 alt_name = "gl" + func.static_glx_name(n) 115 table.append((base_offset, "gl" + name, alt_name, alt_name, func.offset)) 116 else: 117 table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.offset)) 118 119 base_offset += len(n) + 3 120 121 122 if self.long_strings: 123 print ' ;' 124 else: 125 print '};' 126 127 print '' 128 print '' 129 print "#ifdef USE_MGL_NAMESPACE" 130 for func in api.functionIterateByOffset(): 131 for n in func.entry_points: 132 if (not func.is_static_entry_point(func.name)) or (func.has_different_protocol(n) and not func.is_static_entry_point(n)): 133 print '#define gl_dispatch_stub_%u mgl_dispatch_stub_%u' % (func.offset, func.offset) 134 break 135 print "#endif /* USE_MGL_NAMESPACE */" 136 print '' 137 print '' 138 print '#if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING)' 139 for func in api.functionIterateByOffset(): 140 for n in func.entry_points: 141 if (not func.is_static_entry_point(func.name)) or (func.has_different_protocol(n) and not func.is_static_entry_point(n)): 142 print '%s GLAPIENTRY gl_dispatch_stub_%u(%s);' % (func.return_type, func.offset, func.get_parameter_string()) 143 break 144 145 if self.es: 146 categories = {} 147 for func in api.functionIterateByOffset(): 148 for n in func.entry_points: 149 cat, num = api.get_category_for_name(n) 150 if (cat.startswith("es") or cat.startswith("GL_OES")): 151 if not categories.has_key(cat): 152 categories[cat] = [] 153 proto = 'GLAPI %s GLAPIENTRY %s(%s);' \ 154 % (func.return_type, "gl" + n, func.get_parameter_string(n)) 155 categories[cat].append(proto) 156 if categories: 157 print '' 158 print '/* OpenGL ES specific prototypes */' 159 print '' 160 keys = categories.keys() 161 keys.sort() 162 for key in keys: 163 print '/* category %s */' % key 164 print "\n".join(categories[key]) 165 print '' 166 167 print '#endif /* defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING) */' 168 169 print '' 170 print 'static const glprocs_table_t static_functions[] = {' 171 172 for info in table: 173 print ' NAME_FUNC_OFFSET(%5u, %s, %s, %s, %d),' % info 174 175 print ' NAME_FUNC_OFFSET(-1, NULL, NULL, NULL, 0)' 176 print '};' 177 return 178 179 180 def show_usage(): 181 print "Usage: %s [-f input_file_name] [-m mode] [-c]" % sys.argv[0] 182 print "-c Enable compatibility with OpenGL ES." 183 print "-m mode mode can be one of:" 184 print " long - Create code for compilers that can handle very" 185 print " long string constants. (default)" 186 print " short - Create code for compilers that can only handle" 187 print " ANSI C89 string constants." 188 sys.exit(1) 189 190 if __name__ == '__main__': 191 file_name = "gl_API.xml" 192 193 try: 194 (args, trail) = getopt.getopt(sys.argv[1:], "f:m:c") 195 except Exception,e: 196 show_usage() 197 198 long_string = 1 199 es = False 200 for (arg,val) in args: 201 if arg == "-f": 202 file_name = val 203 elif arg == "-m": 204 if val == "short": 205 long_string = 0 206 elif val == "long": 207 long_string = 1 208 else: 209 show_usage() 210 elif arg == "-c": 211 es = True 212 213 api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory()) 214 printer = PrintGlProcs(long_string, es) 215 printer.Print(api) 216
