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1# Copyright 2021 The TensorFlow Authors. All Rights Reserved.
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14# ==============================================================================
15"""Test configs for irfft2d."""
16from __future__ import absolute_import
17from __future__ import division
18from __future__ import print_function
19
20import numpy as np
21import tensorflow.compat.v1 as tf
22
23from tensorflow.lite.testing.zip_test_utils import create_tensor_data
24from tensorflow.lite.testing.zip_test_utils import ExtraTocoOptions
25from tensorflow.lite.testing.zip_test_utils import make_zip_of_tests
26from tensorflow.lite.testing.zip_test_utils import register_make_test_function
27
28
29@register_make_test_function()
30def make_irfft2d_tests(options):
31  """Make a set of tests to do irfft2d."""
32
33  test_parameters = [{
34      "input_dtype": [tf.complex64],
35      "input_shape": [[4, 3]],
36      "fft_length": [[4, 4], [2, 2], [2, 4]]
37  }, {
38      "input_dtype": [tf.complex64],
39      "input_shape": [[3, 8, 5]],
40      "fft_length": [[2, 4], [2, 8], [8, 8]]
41  }, {
42      "input_dtype": [tf.complex64],
43      "input_shape": [[3, 1, 9]],
44      "fft_length": [[1, 8], [1, 16]]
45  }]
46
47  def build_graph(parameters):
48    input_value = tf.compat.v1.placeholder(
49        dtype=parameters["input_dtype"],
50        name="input",
51        shape=parameters["input_shape"])
52    outs = tf.signal.irfft2d(input_value, fft_length=parameters["fft_length"])
53    return [input_value], [outs]
54
55  def build_inputs(parameters, sess, inputs, outputs):
56    rfft_length = []
57    rfft_length.append(parameters["input_shape"][-2])
58    rfft_length.append((parameters["input_shape"][-1] - 1) * 2)
59    rfft_input = create_tensor_data(np.float32, parameters["input_shape"])
60    rfft_result = np.fft.rfft2(rfft_input, rfft_length)
61
62    return [rfft_result], sess.run(
63        outputs, feed_dict=dict(zip(inputs, [rfft_result])))
64
65  extra_toco_options = ExtraTocoOptions()
66  extra_toco_options.allow_custom_ops = True
67  make_zip_of_tests(options, test_parameters, build_graph, build_inputs,
68                    extra_toco_options)
69