#!/usr/bin/env python # (C) Copyright IBM Corporation 2004, 2005 # 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 import license import gl_XML, glX_XML import sys, getopt class PrintGlProcs(gl_XML.gl_print_base): def __init__(self, long_strings, es=False): gl_XML.gl_print_base.__init__(self) self.es = es self.long_strings = long_strings self.name = "gl_procs.py (from Mesa)" self.license = license.bsd_license_template % ( \ """Copyright (C) 1999-2001 Brian Paul All Rights Reserved. (C) Copyright IBM Corporation 2004, 2006""", "BRIAN PAUL, IBM") def printRealHeader(self): print """ /* This file is only included by glapi.c and is used for * the GetProcAddress() function */ typedef struct { GLint Name_offset; #if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING) _glapi_proc Address; #endif GLuint Offset; } glprocs_table_t; #if !defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING) # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , o } #elif defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING) # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f1 , o } #elif defined(NEED_FUNCTION_POINTER) && defined(GLX_INDIRECT_RENDERING) # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f2 , o } #elif !defined(NEED_FUNCTION_POINTER) && defined(GLX_INDIRECT_RENDERING) # define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f3 , o } #endif """ return def printRealFooter(self): print '' print '#undef NAME_FUNC_OFFSET' return def printFunctionString(self, name): if self.long_strings: print ' "gl%s\\0"' % (name) else: print " 'g','l',", for c in name: print "'%s'," % (c), print "'\\0'," def printBody(self, api): print '' if self.long_strings: print 'static const char gl_string_table[] =' else: print 'static const char gl_string_table[] = {' base_offset = 0 table = [] for func in api.functionIterateByOffset(): name = func.dispatch_name() self.printFunctionString(func.name) table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.offset)) # The length of the function's name, plus 2 for "gl", # plus 1 for the NUL. base_offset += len(func.name) + 3 for func in api.functionIterateByOffset(): for n in func.entry_points: if n != func.name: name = func.dispatch_name() self.printFunctionString( n ) if func.has_different_protocol(n): alt_name = "gl" + func.static_glx_name(n) table.append((base_offset, "gl" + name, alt_name, alt_name, func.offset)) else: table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.offset)) base_offset += len(n) + 3 if self.long_strings: print ' ;' else: print '};' print '' print '' print "#ifdef USE_MGL_NAMESPACE" for func in api.functionIterateByOffset(): for n in func.entry_points: if (not func.is_static_entry_point(func.name)) or (func.has_different_protocol(n) and not func.is_static_entry_point(n)): print '#define gl_dispatch_stub_%u mgl_dispatch_stub_%u' % (func.offset, func.offset) break print "#endif /* USE_MGL_NAMESPACE */" print '' print '' print '#if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING)' for func in api.functionIterateByOffset(): for n in func.entry_points: if (not func.is_static_entry_point(func.name)) or (func.has_different_protocol(n) and not func.is_static_entry_point(n)): print '%s GLAPIENTRY gl_dispatch_stub_%u(%s);' % (func.return_type, func.offset, func.get_parameter_string()) break if self.es: categories = {} for func in api.functionIterateByOffset(): for n in func.entry_points: cat, num = api.get_category_for_name(n) if (cat.startswith("es") or cat.startswith("GL_OES")): if not categories.has_key(cat): categories[cat] = [] proto = 'GLAPI %s GLAPIENTRY %s(%s);' \ % (func.return_type, "gl" + n, func.get_parameter_string(n)) categories[cat].append(proto) if categories: print '' print '/* OpenGL ES specific prototypes */' print '' keys = categories.keys() keys.sort() for key in keys: print '/* category %s */' % key print "\n".join(categories[key]) print '' print '#endif /* defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING) */' print '' print 'static const glprocs_table_t static_functions[] = {' for info in table: print ' NAME_FUNC_OFFSET(%5u, %s, %s, %s, %d),' % info print ' NAME_FUNC_OFFSET(-1, NULL, NULL, NULL, 0)' print '};' return def show_usage(): print "Usage: %s [-f input_file_name] [-m mode] [-c]" % sys.argv[0] print "-c Enable compatibility with OpenGL ES." print "-m mode mode can be one of:" print " long - Create code for compilers that can handle very" print " long string constants. (default)" print " short - Create code for compilers that can only handle" print " ANSI C89 string constants." 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() long_string = 1 es = False for (arg,val) in args: if arg == "-f": file_name = val elif arg == "-m": if val == "short": long_string = 0 elif val == "long": long_string = 1 else: show_usage() elif arg == "-c": es = True api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory()) printer = PrintGlProcs(long_string, es) printer.Print(api)