diff options
Diffstat (limited to 'mesalib/src/mesa/glapi/gl_apitemp.py')
| -rw-r--r-- | mesalib/src/mesa/glapi/gl_apitemp.py | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/mesalib/src/mesa/glapi/gl_apitemp.py b/mesalib/src/mesa/glapi/gl_apitemp.py new file mode 100644 index 000000000..a37c08d6c --- /dev/null +++ b/mesalib/src/mesa/glapi/gl_apitemp.py @@ -0,0 +1,253 @@ +#!/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 <idr@us.ibm.com> + +import gl_XML, glX_XML +import license +import sys, getopt + +class PrintGlOffsets(gl_XML.gl_print_base): + def __init__(self): + gl_XML.gl_print_base.__init__(self) + + self.name = "gl_apitemp.py (from Mesa)" + self.license = license.bsd_license_template % ( \ +"""Copyright (C) 1999-2001 Brian Paul All Rights Reserved. +(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM") + + self.undef_list.append( "KEYWORD1" ) + self.undef_list.append( "KEYWORD1_ALT" ) + self.undef_list.append( "KEYWORD2" ) + self.undef_list.append( "NAME" ) + self.undef_list.append( "DISPATCH" ) + self.undef_list.append( "RETURN_DISPATCH" ) + self.undef_list.append( "DISPATCH_TABLE_NAME" ) + self.undef_list.append( "UNUSED_TABLE_NAME" ) + self.undef_list.append( "TABLE_ENTRY" ) + + + def printFunction(self, f, name): + p_string = "" + o_string = "" + t_string = "" + comma = "" + + if f.is_static_entry_point(name): + keyword = "KEYWORD1" + else: + keyword = "KEYWORD1_ALT" + + n = f.static_name(name) + + for p in f.parameterIterator(): + if p.is_padding: + continue + + if p.is_pointer(): + cast = "(const void *) " + else: + cast = "" + + t_string = t_string + comma + p.format_string() + p_string = p_string + comma + p.name + o_string = o_string + comma + cast + p.name + comma = ", " + + + if f.return_type != 'void': + dispatch = "RETURN_DISPATCH" + else: + dispatch = "DISPATCH" + + if f.has_different_protocol(name): + print '#ifndef GLX_INDIRECT_RENDERING' + + if not f.is_static_entry_point(name): + print '%s %s KEYWORD2 NAME(%s)(%s);' % (keyword, f.return_type, n, f.get_parameter_string(name)) + print '' + + print '%s %s KEYWORD2 NAME(%s)(%s)' % (keyword, f.return_type, n, f.get_parameter_string(name)) + print '{' + if p_string == "": + print ' %s(%s, (), (F, "gl%s();\\n"));' \ + % (dispatch, f.name, name) + else: + print ' %s(%s, (%s), (F, "gl%s(%s);\\n", %s));' \ + % (dispatch, f.name, p_string, name, t_string, o_string) + print '}' + if f.has_different_protocol(name): + print '#endif /* GLX_INDIRECT_RENDERING */' + print '' + return + + def printRealHeader(self): + print '' + self.printVisibility( "HIDDEN", "hidden" ) + print """ +/* + * This file is a template which generates the OpenGL API entry point + * functions. It should be included by a .c file which first defines + * the following macros: + * KEYWORD1 - usually nothing, but might be __declspec(dllexport) on Win32 + * KEYWORD2 - usually nothing, but might be __stdcall on Win32 + * NAME(n) - builds the final function name (usually add "gl" prefix) + * DISPATCH(func, args, msg) - code to do dispatch of named function. + * msg is a printf-style debug message. + * RETURN_DISPATCH(func, args, msg) - code to do dispatch with a return value + * + * Here is an example which generates the usual OpenGL functions: + * #define KEYWORD1 + * #define KEYWORD2 + * #define NAME(func) gl##func + * #define DISPATCH(func, args, msg) \\ + * struct _glapi_table *dispatch = CurrentDispatch; \\ + * (*dispatch->func) args + * #define RETURN DISPATCH(func, args, msg) \\ + * struct _glapi_table *dispatch = CurrentDispatch; \\ + * return (*dispatch->func) args + * + */ + + +#if defined( NAME ) +#ifndef KEYWORD1 +#define KEYWORD1 +#endif + +#ifndef KEYWORD1_ALT +#define KEYWORD1_ALT HIDDEN +#endif + +#ifndef KEYWORD2 +#define KEYWORD2 +#endif + +#ifndef DISPATCH +#error DISPATCH must be defined +#endif + +#ifndef RETURN_DISPATCH +#error RETURN_DISPATCH must be defined +#endif + +""" + return + + + + def printInitDispatch(self, api): + print """ +#endif /* defined( NAME ) */ + +/* + * This is how a dispatch table can be initialized with all the functions + * we generated above. + */ +#ifdef DISPATCH_TABLE_NAME + +#ifndef TABLE_ENTRY +#error TABLE_ENTRY must be defined +#endif + +static _glapi_proc DISPATCH_TABLE_NAME[] = {""" + for f in api.functionIterateByOffset(): + print ' TABLE_ENTRY(%s),' % (f.dispatch_name()) + + print ' /* A whole bunch of no-op functions. These might be called' + print ' * when someone tries to call a dynamically-registered' + print ' * extension function without a current rendering context.' + print ' */' + for i in range(1, 100): + print ' TABLE_ENTRY(Unused),' + + print '};' + print '#endif /* DISPATCH_TABLE_NAME */' + print '' + return + + + def printAliasedTable(self, api): + print """ +/* + * This is just used to silence compiler warnings. + * We list the functions which are not otherwise used. + */ +#ifdef UNUSED_TABLE_NAME +static _glapi_proc UNUSED_TABLE_NAME[] = {""" + + for f in api.functionIterateByOffset(): + for n in f.entry_points: + if n != f.name: + if f.is_static_entry_point(n): + text = ' TABLE_ENTRY(%s),' % (n) + + if f.has_different_protocol(n): + print '#ifndef GLX_INDIRECT_RENDERING' + print text + print '#endif' + else: + print text + print '};' + print '#endif /*UNUSED_TABLE_NAME*/' + print '' + return + + + def printBody(self, api): + for func in api.functionIterateByOffset(): + got_stub = 0 + for n in func.entry_points: + if func.is_static_entry_point(n): + self.printFunction(func, n) + elif not got_stub: + self.printFunction(func, n) + got_stub = 1 + + self.printInitDispatch(api) + self.printAliasedTable(api) + return + + +def show_usage(): + print "Usage: %s [-f input_file_name]" % sys.argv[0] + sys.exit(1) + +if __name__ == '__main__': + file_name = "gl_API.xml" + + try: + (args, trail) = getopt.getopt(sys.argv[1:], "f:") + except Exception,e: + show_usage() + + for (arg,val) in args: + if arg == "-f": + file_name = val + + api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory()) + + printer = PrintGlOffsets() + printer.Print(api) |