213 lines
7.2 KiB
Python
213 lines
7.2 KiB
Python
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# (C) Copyright IBM Corporation 2004
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# All Rights Reserved.
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# Copyright (c) 2014 Intel Corporation
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# on the rights to use, copy, modify, merge, publish, distribute, sub
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# license, and/or sell copies of the Software, and to permit persons to whom
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# the Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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# Authors:
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# Ian Romanick <idr@us.ibm.com>
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import argparse
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import gl_XML
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import license
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class PrintGlTable(gl_XML.gl_print_base):
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def __init__(self):
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gl_XML.gl_print_base.__init__(self)
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self.header_tag = '_GLAPI_TABLE_H_'
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self.name = "gl_table.py (from Mesa)"
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self.license = license.bsd_license_template % ( \
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"""Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
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(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
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return
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def printBody(self, api):
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for f in api.functionIterateByOffset():
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arg_string = f.get_parameter_string()
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print(' %s (GLAPIENTRYP %s)(%s); /* %d */' % (
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f.return_type, f.name, arg_string, f.offset))
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def printRealHeader(self):
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print('#ifndef GLAPIENTRYP')
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print('# ifndef GLAPIENTRY')
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print('# define GLAPIENTRY')
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print('# endif')
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print('')
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print('# define GLAPIENTRYP GLAPIENTRY *')
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print('#endif')
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print('')
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print('')
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print('#ifdef __cplusplus')
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print('extern "C" {')
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print('#endif')
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print('')
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print('#ifdef MemoryBarrier')
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print('#undef MemoryBarrier')
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print('#endif')
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print('')
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print('struct _glapi_table')
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print('{')
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return
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def printRealFooter(self):
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print('};')
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print('')
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print('#ifdef __cplusplus')
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print('}')
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print('#endif')
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return
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class PrintRemapTable(gl_XML.gl_print_base):
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def __init__(self):
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gl_XML.gl_print_base.__init__(self)
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self.header_tag = '_DISPATCH_H_'
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self.name = "gl_table.py (from Mesa)"
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self.license = license.bsd_license_template % (
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"(C) Copyright IBM Corporation 2005", "IBM")
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return
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def printRealHeader(self):
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print("""
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/**
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* \\file main/dispatch.h
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* Macros for handling GL dispatch tables.
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*
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* For each known GL function, there are 3 macros in this file. The first
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* macro is named CALL_FuncName and is used to call that GL function using
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* the specified dispatch table. The other 2 macros, called GET_FuncName
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* can SET_FuncName, are used to get and set the dispatch pointer for the
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* named function in the specified dispatch table.
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*/
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#include "main/glheader.h"
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""")
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print('#include "main/glheader.h"')
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return
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def printBody(self, api):
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print('#define CALL_by_offset(disp, cast, offset, parameters) \\')
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print(' (*(cast (GET_by_offset(disp, offset)))) parameters')
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print('#define GET_by_offset(disp, offset) \\')
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print(' (offset >= 0) ? (((_glapi_proc *)(disp))[offset]) : NULL')
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print('#define SET_by_offset(disp, offset, fn) \\')
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print(' do { \\')
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print(' if ( (offset) < 0 ) { \\')
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print(' /* fprintf( stderr, "[%s:%u] SET_by_offset(%p, %d, %s)!\\n", */ \\')
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print(' /* __func__, __LINE__, disp, offset, # fn); */ \\')
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print(' /* abort(); */ \\')
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print(' } \\')
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print(' else { \\')
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print(' ( (_glapi_proc *) (disp) )[offset] = (_glapi_proc) fn; \\')
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print(' } \\')
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print(' } while(0)')
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print('')
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functions = []
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abi_functions = []
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count = 0
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for f in api.functionIterateByOffset():
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if not f.is_abi():
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functions.append([f, count])
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count += 1
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else:
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abi_functions.append([f, -1])
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print('/* total number of offsets below */')
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print('#define _gloffset_COUNT %d' % (len(abi_functions + functions)))
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print('')
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for f, index in abi_functions:
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print('#define _gloffset_%s %d' % (f.name, f.offset))
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remap_table = "driDispatchRemapTable"
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print('#define %s_size %u' % (remap_table, count))
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print('extern int %s[ %s_size ];' % (remap_table, remap_table))
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print('')
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for f, index in functions:
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print('#define %s_remap_index %u' % (f.name, index))
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print('')
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for f, index in functions:
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print('#define _gloffset_%s %s[%s_remap_index]' % (f.name, remap_table, f.name))
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print('')
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for f, index in abi_functions + functions:
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arg_string = gl_XML.create_parameter_string(f.parameters, 0)
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print('typedef %s (GLAPIENTRYP _glptr_%s)(%s);' % (f.return_type, f.name, arg_string))
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print('#define CALL_%s(disp, parameters) \\' % (f.name))
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print(' (* GET_%s(disp)) parameters' % (f.name))
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print('static inline _glptr_%s GET_%s(struct _glapi_table *disp) {' % (f.name, f.name))
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print(' return (_glptr_%s) (GET_by_offset(disp, _gloffset_%s));' % (f.name, f.name))
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print('}')
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print()
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print('static inline void SET_%s(struct _glapi_table *disp, %s (GLAPIENTRYP fn)(%s)) {' % (f.name, f.return_type, arg_string))
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print(' SET_by_offset(disp, _gloffset_%s, fn);' % (f.name))
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print('}')
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print()
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return
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def _parser():
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"""Parse arguments and return a namespace."""
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parser = argparse.ArgumentParser()
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parser.add_argument('-f', '--filename',
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default='gl_API.xml',
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metavar="input_file_name",
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dest='file_name',
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help="Path to an XML description of OpenGL API.")
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parser.add_argument('-m', '--mode',
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choices=['table', 'remap_table'],
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default='table',
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metavar="mode",
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help="Generate either a table or a remap_table")
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return parser.parse_args()
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def main():
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"""Main function."""
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args = _parser()
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api = gl_XML.parse_GL_API(args.file_name)
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if args.mode == "table":
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printer = PrintGlTable()
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elif args.mode == "remap_table":
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printer = PrintRemapTable()
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printer.Print(api)
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if __name__ == '__main__':
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main()
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