1 /* Copyright 2019 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 16 #ifndef TENSORFLOW_LITE_DELEGATES_GPU_COMMON_TRANSFORMATIONS_MERGE_PADDING_WITH_H_ 17 #define TENSORFLOW_LITE_DELEGATES_GPU_COMMON_TRANSFORMATIONS_MERGE_PADDING_WITH_H_ 18 19 #include <memory> 20 21 #include "tensorflow/lite/delegates/gpu/common/model_transformer.h" 22 23 namespace tflite { 24 namespace gpu { 25 26 std::unique_ptr<SequenceTransformation> NewMergePaddingWithPooling(); 27 28 std::unique_ptr<SequenceTransformation> NewMergePaddingWithConvolution2D(); 29 30 std::unique_ptr<SequenceTransformation> 31 NewMergePaddingWithDepthwiseConvolution(); 32 33 // This transform requires Add operation support of unequal tensors on input. 34 // Padding should be with zeroes, and only appended in Z axis. 35 // Also input tensor channels should be divisible by 4(aligned). 36 // It should replace following pattern: 37 // 1) some tensor padded with zeroes in Z dim, for example from 24 to 32 38 // channels 39 // 2) than this tensor used only in Add operation and Add operation 40 // adds this useless zeroes on 24-32 channels. 41 // It removes this useless addition 42 // by using Add with unequal tensors on input. Instead of filling with zeroes 43 // and adding this part in Add operation, Add operation makes additional check 44 // for this tensor: 45 // if (channels < src_channels) { 46 // result += tensor_from_pad_operation.data[index]; 47 // } 48 std::unique_ptr<NodeTransformation> NewMergePaddingWithAdd(); 49 50 } // namespace gpu 51 } // namespace tflite 52 53 #endif // TENSORFLOW_LITE_DELEGATES_GPU_COMMON_TRANSFORMATIONS_MERGE_PADDING_WITH_H_ 54