# (C) Copyright IBM Corporation 2004 # All Rights Reserved. # Copyright (c) 2014 Intel Corporation # # 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 argparse import gl_XML import license class PrintGlTable(gl_XML.gl_print_base): def __init__(self): gl_XML.gl_print_base.__init__(self) 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('#include "util/glheader.h"') print('') print('#ifdef __cplusplus') print('extern "C" {') print('#endif') print('') print('#if defined(_WIN32) && defined(_WINDOWS_)') print('#error "Should not include here"') print('#endif') print('') print('struct _glapi_table') print('{') return def printRealFooter(self): print('};') print('') print('#ifdef __cplusplus') print('}') print('#endif') return class PrintRemapTable(gl_XML.gl_print_base): def __init__(self): gl_XML.gl_print_base.__init__(self) self.header_tag = '_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(""" /** * \\file main/dispatch.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. */ #include "util/glheader.h" """) 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 = [] count = 0 for f in api.functionIterateByOffset(): if not f.is_abi(): functions.append([f, count]) count += 1 else: abi_functions.append([f, -1]) print('/* total number of offsets below */') print('#define _gloffset_COUNT %d' % (len(abi_functions + functions))) print('') for f, index in abi_functions: print('#define _gloffset_%s %d' % (f.name, f.offset)) remap_table = "driDispatchRemapTable" print('#define %s_size %u' % (remap_table, count)) print('extern int %s[ %s_size ];' % (remap_table, remap_table)) print('') for f, index in functions: print('#define %s_remap_index %u' % (f.name, index)) print('') for f, index in functions: print('#define _gloffset_%s %s[%s_remap_index]' % (f.name, remap_table, f.name)) print('') for f, index in abi_functions + functions: arg_string = gl_XML.create_parameter_string(f.parameters, 0) print('typedef %s (GLAPIENTRYP _glptr_%s)(%s);' % (f.return_type, f.name, arg_string)) print('#define CALL_{0}(disp, parameters) (* GET_{0}(disp)) parameters'.format(f.name)) print('#define GET_{0}(disp) ((_glptr_{0})(GET_by_offset((disp), _gloffset_{0})))'.format(f.name)) print("""#define SET_{0}(disp, func) do {{ \\ {1} (GLAPIENTRYP fn)({2}) = func; \\ SET_by_offset(disp, _gloffset_{0}, fn); \\ }} while (0) """.format(f.name, f.return_type, arg_string)) return def _parser(): """Parse arguments and return a namespace.""" parser = argparse.ArgumentParser() parser.add_argument('-f', '--filename', default='gl_API.xml', metavar="input_file_name", dest='file_name', help="Path to an XML description of OpenGL API.") parser.add_argument('-m', '--mode', choices=['table', 'remap_table'], default='table', metavar="mode", help="Generate either a table or a remap_table") return parser.parse_args() def main(): """Main function.""" args = _parser() api = gl_XML.parse_GL_API(args.file_name) if args.mode == "table": printer = PrintGlTable() elif args.mode == "remap_table": printer = PrintRemapTable() printer.Print(api) if __name__ == '__main__': main()