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# Copyright (C) 2017 Intel Corporation. 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
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# 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 NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS 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.
# Python source
# Compatible with Python2.X and Python3.X
from __future__ import print_function
import itertools
import math
import argparse
import os
import sys
from mako.template import Template
from mako.exceptions import RichTraceback
def write_template_to_string(template_filename, **kwargs):
try:
template = Template(filename=os.path.abspath(template_filename))
# Split + Join fixes line-endings for whatever platform you are using
return '\n'.join(template.render(**kwargs).splitlines())
except:
traceback = RichTraceback()
for (filename, lineno, function, line) in traceback.traceback:
print("File %s, line %s, in %s" % (filename, lineno, function))
print(line, "\n")
print("%s: %s" % (str(traceback.error.__class__.__name__), traceback.error))
def write_template_to_file(template_filename, output_filename, **kwargs):
output_dirname = os.path.dirname(output_filename)
if not os.path.exists(output_dirname):
os.makedirs(output_dirname)
with open(output_filename, "w") as outfile:
print(write_template_to_string(template_filename, **kwargs), file=outfile)
def main(args=sys.argv[1:]):
thisDir = os.path.dirname(os.path.realpath(__file__))
parser = argparse.ArgumentParser("Generate files and initialization functions for all permutuations of BackendPixelRate.")
parser.add_argument('--dim', help="gBackendPixelRateTable array dimensions", nargs='+', type=int, required=True)
parser.add_argument('--outdir', help="output directory", nargs='?', type=str, default=thisDir)
parser.add_argument('--split', help="how many lines of initialization per file [0=no split]", nargs='?', type=int, default='512')
parser.add_argument('--cpp', help="Generate cpp file(s)", action='store_true', default=False)
parser.add_argument('--cmake', help="Generate cmake file", action='store_true', default=False)
args = parser.parse_args(args);
output_list = []
for x in args.dim:
output_list.append(list(range(x)))
# generate all permutations possible for template paremeter inputs
output_combinations = list(itertools.product(*output_list))
output_list = []
# for each permutation
for x in range(len(output_combinations)):
# separate each template peram into its own list member
new_list = [output_combinations[x][i] for i in range(len(output_combinations[x]))]
tempStr = 'gBackendPixelRateTable'
#print each list member as an index in the multidimensional array
for i in new_list:
tempStr += '[' + str(i) + ']'
#map each entry in the permuation as its own string member, store as the template instantiation string
tempStr += " = BackendPixelRate<SwrBackendTraits<" + ','.join(map(str, output_combinations[x])) + '>>;'
#append the line of c++ code in the list of output lines
output_list.append(tempStr)
# how many files should we split the global template initialization into?
if (args.split == 0):
numFiles = 1
else:
numFiles = (len(output_list) + args.split - 1) // args.split
linesPerFile = (len(output_list) + numFiles - 1) // numFiles
chunkedList = [output_list[x:x+linesPerFile] for x in range(0, len(output_list), linesPerFile)]
# generate .cpp files
if args.cpp:
baseCppName = os.path.join(args.outdir, 'BackendPixelRate%s.cpp')
templateCpp = os.path.join(thisDir, 'templates', 'backend_template.cpp')
for fileNum in range(numFiles):
filename = baseCppName % str(fileNum)
print('Generating', filename)
write_template_to_file(
templateCpp,
baseCppName % str(fileNum),
fileNum=fileNum,
funcList=chunkedList[fileNum])
# generate gen_backend.cmake file
if args.cmake:
templateCmake = os.path.join(thisDir, 'templates', 'backend_template.cmake')
cmakeFile = os.path.join(args.outdir, 'gen_backends.cmake')
print('Generating', cmakeFile)
write_template_to_file(
templateCmake,
cmakeFile,
numFiles=numFiles,
baseCppName=baseCppName.replace('\\','/'))
print("Generated %d template instantiations in %d files" % (len(output_list), numFiles))
return 0
if __name__ == '__main__':
sys.exit(main())
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