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#!/usr/bin/python
# Copyright (c) 2021 Samsung Electronics Co., Ltd. All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from .tflite_enum_str_maps import EnumStrMaps
def GetAttribute(o, *args):
import functools
return functools.reduce(getattr, args, o)
def BuildBuiltinOptionGen():
bo_gen = {}
for val_enum in EnumStrMaps.BuiltinOptions:
val_str = EnumStrMaps.BuiltinOptions[val_enum]
try:
# Dynamically import Builtin Option classes
# 0 (NONE) is the only exception that does not have no corresponding flatbuffer-generated class
module = __import__("tflite." + val_str)
bo_gen[val_enum] = GetAttribute(module, val_str, val_str)
except ImportError as e:
assert val_enum == 0 and val_str == "NONE"
return bo_gen
class OptionLoader:
builtinOptionGen = BuildBuiltinOptionGen()
@staticmethod
def GetBuiltinOptions(options_type, options_table):
if (options_table == None) and (options_type != 0):
print(
"Bad flatbuffer file: undefined builtin option table with defined option type"
)
exit(1)
options = OptionLoader.builtinOptionGen[options_type]()
options.Init(options_table.Bytes, options_table.Pos)
return options
def GetStringPadding(options):
if options.Padding() == 0:
return "SAME"
elif options.Padding() == 1:
return "VALID"
else:
return "** wrong padding value **"
def GetStringOptions(op_name, options):
if (op_name == "AVERAGE_POOL_2D" or op_name == "MAX_POOL_2D"):
return "{}, {}, {}".format(
"Filter W:H = {}:{}".format(options.FilterWidth(), options.FilterHeight()),
"Stride W:H = {}:{}".format(options.StrideW(),
options.StrideH()), "Padding = {}".format(
GetStringPadding(options)))
elif (op_name == "CONV_2D"):
return "{}, {}, {}".format(
"Stride W:H = {}:{}".format(options.StrideW(), options.StrideH()),
"Dilation W:H = {}:{}".format(options.DilationWFactor(),
options.DilationHFactor()),
"Padding = {}".format(GetStringPadding(options)))
elif (op_name == "DEPTHWISE_CONV_2D"):
# yapf: disable
return "{}, {}, {}, {}".format(
"Stride W:H = {}:{}".format(options.StrideW(),
options.StrideH()),
"Dilation W:H = {}:{}".format(options.DilationWFactor(),
options.DilationHFactor()),
"Padding = {}".format(GetStringPadding(options)),
"DepthMultiplier = {}".format(options.DepthMultiplier()))
# yapf: enable
elif (op_name == "STRIDED_SLICE"):
# yapf: disable
return "{}, {}, {}, {}, {}".format(
"begin_mask({})".format(options.BeginMask()),
"end_mask({})".format(options.EndMask()),
"ellipsis_mask({})".format(options.EllipsisMask()),
"new_axis_mask({})".format(options.NewAxisMask()),
"shrink_axis_mask({})".format(options.ShrinkAxisMask()))
# yapf: enable
else:
return None
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