diff options
Diffstat (limited to 'mesalib/src/mapi/glapi/gen/gl_table.py')
| -rw-r--r-- | mesalib/src/mapi/glapi/gen/gl_table.py | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/mesalib/src/mapi/glapi/gen/gl_table.py b/mesalib/src/mapi/glapi/gen/gl_table.py new file mode 100644 index 000000000..3bd7569e9 --- /dev/null +++ b/mesalib/src/mapi/glapi/gen/gl_table.py @@ -0,0 +1,229 @@ +#!/usr/bin/python2 + +# (C) Copyright IBM Corporation 2004 +# 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 +import license +import sys, getopt + +class PrintGlTable(gl_XML.gl_print_base): + def __init__(self, es=False): + gl_XML.gl_print_base.__init__(self) + + self.es = es + self.header_tag = '_GLAPI_TABLE_H_' + self.name = "gl_table.py (from Mesa)" + self.license = license.bsd_license_template % ( \ +"""Copyright (C) 1999-2003 Brian Paul All Rights Reserved. +(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM") + return + + + def printBody(self, api): + for f in api.functionIterateByOffset(): + arg_string = f.get_parameter_string() + print ' %s (GLAPIENTRYP %s)(%s); /* %d */' % (f.return_type, f.name, arg_string, f.offset) + + + def printRealHeader(self): + print '#ifndef GLAPIENTRYP' + print '# ifndef GLAPIENTRY' + print '# define GLAPIENTRY' + print '# endif' + print '' + print '# define GLAPIENTRYP GLAPIENTRY *' + print '#endif' + print '' + print '' + print 'struct _glapi_table' + print '{' + return + + + def printRealFooter(self): + print '};' + return + + +class PrintRemapTable(gl_XML.gl_print_base): + def __init__(self, es=False): + gl_XML.gl_print_base.__init__(self) + + self.es = es + self.header_tag = '_GLAPI_DISPATCH_H_' + self.name = "gl_table.py (from Mesa)" + self.license = license.bsd_license_template % ("(C) Copyright IBM Corporation 2005", "IBM") + return + + + def printRealHeader(self): + print """ +/* this file should not be included directly in mesa */ + +/** + * \\file glapidispatch.h + * Macros for handling GL dispatch tables. + * + * For each known GL function, there are 3 macros in this file. The first + * macro is named CALL_FuncName and is used to call that GL function using + * the specified dispatch table. The other 2 macros, called GET_FuncName + * can SET_FuncName, are used to get and set the dispatch pointer for the + * named function in the specified dispatch table. + */ +""" + + return + + def printBody(self, api): + print '#define CALL_by_offset(disp, cast, offset, parameters) \\' + print ' (*(cast (GET_by_offset(disp, offset)))) parameters' + print '#define GET_by_offset(disp, offset) \\' + print ' (offset >= 0) ? (((_glapi_proc *)(disp))[offset]) : NULL' + print '#define SET_by_offset(disp, offset, fn) \\' + print ' do { \\' + print ' if ( (offset) < 0 ) { \\' + print ' /* fprintf( stderr, "[%s:%u] SET_by_offset(%p, %d, %s)!\\n", */ \\' + print ' /* __func__, __LINE__, disp, offset, # fn); */ \\' + print ' /* abort(); */ \\' + print ' } \\' + print ' else { \\' + print ' ( (_glapi_proc *) (disp) )[offset] = (_glapi_proc) fn; \\' + print ' } \\' + print ' } while(0)' + print '' + + functions = [] + abi_functions = [] + alias_functions = [] + count = 0 + for f in api.functionIterateByOffset(): + if not f.is_abi(): + functions.append( [f, count] ) + count += 1 + else: + abi_functions.append( f ) + + if self.es: + # remember functions with aliases + if len(f.entry_points) > 1: + alias_functions.append(f) + + + for f in abi_functions: + print '#define CALL_%s(disp, parameters) (*((disp)->%s)) parameters' % (f.name, f.name) + print '#define GET_%s(disp) ((disp)->%s)' % (f.name, f.name) + print '#define SET_%s(disp, fn) ((disp)->%s = fn)' % (f.name, f.name) + + + print '' + print '#if !defined(_GLAPI_USE_REMAP_TABLE)' + print '' + + for [f, index] in functions: + print '#define CALL_%s(disp, parameters) (*((disp)->%s)) parameters' % (f.name, f.name) + print '#define GET_%s(disp) ((disp)->%s)' % (f.name, f.name) + print '#define SET_%s(disp, fn) ((disp)->%s = fn)' % (f.name, f.name) + + print '' + print '#else' + print '' + print '#define driDispatchRemapTable_size %u' % (count) + print 'extern int driDispatchRemapTable[ driDispatchRemapTable_size ];' + print '' + + for [f, index] in functions: + print '#define %s_remap_index %u' % (f.name, index) + + print '' + + for [f, index] in functions: + arg_string = gl_XML.create_parameter_string( f.parameters, 0 ) + cast = '%s (GLAPIENTRYP)(%s)' % (f.return_type, arg_string) + + print '#define CALL_%s(disp, parameters) CALL_by_offset(disp, (%s), driDispatchRemapTable[%s_remap_index], parameters)' % (f.name, cast, f.name) + print '#define GET_%s(disp) GET_by_offset(disp, driDispatchRemapTable[%s_remap_index])' % (f.name, f.name) + print '#define SET_%s(disp, fn) SET_by_offset(disp, driDispatchRemapTable[%s_remap_index], fn)' % (f.name, f.name) + + + print '' + print '#endif /* !defined(_GLAPI_USE_REMAP_TABLE) */' + + if alias_functions: + print '' + print '/* define aliases for compatibility */' + for f in alias_functions: + for name in f.entry_points: + if name != f.name: + print '#define CALL_%s(disp, parameters) CALL_%s(disp, parameters)' % (name, f.name) + print '#define GET_%s(disp) GET_%s(disp)' % (name, f.name) + print '#define SET_%s(disp, fn) SET_%s(disp, fn)' % (name, f.name) + print '' + + print '#if defined(_GLAPI_USE_REMAP_TABLE)' + for f in alias_functions: + for name in f.entry_points: + if name != f.name: + print '#define %s_remap_index %s_remap_index' % (name, f.name) + print '#endif /* defined(_GLAPI_USE_REMAP_TABLE) */' + print '' + + return + + +def show_usage(): + print "Usage: %s [-f input_file_name] [-m mode] [-c]" % sys.argv[0] + print " -m mode Mode can be 'table' or 'remap_table'." + print " -c Enable compatibility with OpenGL ES." + 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() + + mode = "table" + es = False + for (arg,val) in args: + if arg == "-f": + file_name = val + elif arg == "-m": + mode = val + elif arg == "-c": + es = True + + if mode == "table": + printer = PrintGlTable(es) + elif mode == "remap_table": + printer = PrintRemapTable(es) + else: + show_usage() + + api = gl_XML.parse_GL_API( file_name ) + + printer.Print( api ) |