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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 os
import sys
from gen_common import ArgumentParser, MakoTemplateWriter
def main(args=sys.argv[1:]):
thisDir = os.path.dirname(os.path.realpath(__file__))
parser = 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);
class backendStrs :
def __init__(self) :
self.outFileName = 'gen_BackendPixelRate%s.cpp'
self.functionTableName = 'gBackendPixelRateTable'
self.funcInstanceHeader = ' = BackendPixelRate<SwrBackendTraits<'
self.template = 'gen_backend.cpp'
self.cmakeFileName = 'gen_backends.cmake'
self.cmakeSrcVar = 'GEN_BACKEND_SOURCES'
backend = backendStrs()
output_list = []
for x in args.dim:
output_list.append(list(range(x)))
# generate all permutations possible for template parameter 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 = backend.functionTableName
#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 += backend.funcInstanceHeader + ','.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, backend.outFileName)
templateCpp = os.path.join(thisDir, 'templates', backend.template)
for fileNum in range(numFiles):
filename = baseCppName % str(fileNum)
#print('Generating', filename)
MakoTemplateWriter.to_file(
templateCpp,
baseCppName % str(fileNum),
cmdline=sys.argv,
fileNum=fileNum,
funcList=chunkedList[fileNum])
# generate gen_backend.cmake file
if args.cmake:
templateCmake = os.path.join(thisDir, 'templates', 'gen_backend.cmake')
cmakeFile = os.path.join(args.outdir, backend.cmakeFileName)
#print('Generating', cmakeFile)
MakoTemplateWriter.to_file(
templateCmake,
cmakeFile,
cmdline=sys.argv,
srcVar=backend.cmakeSrcVar,
numFiles=numFiles,
baseCppName='${RASTY_GEN_SRC_DIR}/backends/' + os.path.basename(baseCppName))
#print("Generated %d template instantiations in %d files" % (len(output_list), numFiles))
return 0
if __name__ == '__main__':
sys.exit(main())
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