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# Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
# All Rights Reserved.
#
# This is based on extension_helper.py by Ian Romanick.
#
# 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.
import argparse
import license
import gl_XML
class PrintGlRemap(gl_XML.gl_print_base):
def __init__(self):
gl_XML.gl_print_base.__init__(self)
self.name = "remap_helper.py (from Mesa)"
self.license = license.bsd_license_template % ("Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>", "Chia-I Wu")
return
def printRealHeader(self):
print('#include "main/dispatch.h"')
print('#include "main/remap.h"')
print('')
return
def printBody(self, api):
pool_indices = {}
print('/* this is internal to remap.c */')
print('#ifndef need_MESA_remap_table')
print('#error Only remap.c should include this file!')
print('#endif /* need_MESA_remap_table */')
print('')
print('')
print('static const char _mesa_function_pool[] =')
# output string pool
index = 0;
for f in api.functionIterateAll():
pool_indices[f] = index
# a function has either assigned offset, fixed offset,
# or no offset
if f.assign_offset:
comments = "will be remapped"
elif f.offset > 0:
comments = "offset %d" % f.offset
else:
comments = "dynamic"
print(' /* _mesa_function_pool[%d]: %s (%s) */' \
% (index, f.name, comments))
print(' "gl%s\\0"' % f.entry_points[0])
index += len(f.entry_points[0]) + 3
print(' ;')
print('')
print('/* these functions need to be remapped */')
print('static const struct gl_function_pool_remap MESA_remap_table_functions[] = {')
# output all functions that need to be remapped
# iterate by offsets so that they are sorted by remap indices
for f in api.functionIterateByOffset():
if not f.assign_offset:
continue
print(' { %5d, %s_remap_index },' \
% (pool_indices[f], f.name))
print(' { -1, -1 }')
print('};')
print('')
return
def _parser():
"""Parse input options and return a namsepace."""
parser = argparse.ArgumentParser()
parser.add_argument('-f', '--filename',
default="gl_API.xml",
metavar="input_file_name",
dest='file_name',
help="An xml description file.")
return parser.parse_args()
def main():
"""Main function."""
args = _parser()
api = gl_XML.parse_GL_API(args.file_name)
printer = PrintGlRemap()
printer.Print(api)
if __name__ == '__main__':
main()
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