1 /*
2 * Copyright (C) 2022 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "LogisticOperationConverter.h"
18
19 #include <vector>
20
21 #include "OperationConverterResolver.h"
22 #include "SubGraphContext.h"
23
24 namespace android {
25 namespace nn {
26
getLogisticInputs(const Operation & operation,SubGraphContext * context) const27 Result<std::vector<int32_t>> LogisticOperationConverter::getLogisticInputs(
28 const Operation& operation, SubGraphContext* context) const {
29 NN_TRY(context->createTensorFlatbufferFromOperand(operation.inputs[kInputTensorIdx]));
30 std::vector<int32_t> inputs{
31 context->getTensorIdxFromOperandIdx(operation.inputs[kInputTensorIdx])};
32 return inputs;
33 }
34
getLogisticOutputs(const Operation & operation,SubGraphContext * context) const35 Result<std::vector<int32_t>> LogisticOperationConverter::getLogisticOutputs(
36 const Operation& operation, SubGraphContext* context) const {
37 NN_TRY(context->createTensorFlatbufferFromOperand(operation.outputs[kOutputTensorIdx]));
38 std::vector<int32_t> outputs{
39 context->getTensorIdxFromOperandIdx(operation.outputs[kOutputTensorIdx])};
40 return outputs;
41 }
42
convert(const Operation & operation,SubGraphContext * context) const43 Result<void> LogisticOperationConverter::convert(const Operation& operation,
44 SubGraphContext* context) const {
45 // add opcode for LOGISTIC if not added yet
46 uint32_t opCodeIdx = context->addOpCode(OperationType::LOGISTIC);
47
48 std::vector<int32_t> inputs = NN_TRY(getLogisticInputs(operation, context));
49 std::vector<int32_t> outputs = NN_TRY(getLogisticOutputs(operation, context));
50
51 auto optionsFlatbuffer = tflite::CreateLogSoftmaxOptions(context->getBuilder());
52 auto operatorFlatbuffer = tflite::CreateOperatorDirect(
53 context->getBuilder() /* builder */, opCodeIdx /* opcode_index */, &inputs /* inputs */,
54 &outputs /* outputs */,
55 tflite::BuiltinOptions::BuiltinOptions_LogSoftmaxOptions /* builtin_options_type */,
56 optionsFlatbuffer.Union() /* builtin_options */);
57 context->addOperatorFlatbuffer(operatorFlatbuffer);
58
59 return {};
60 }
61
62 NN_REGISTER_OPERATION_CONVERTER(LOGISTIC, LogisticOperationConverter);
63
64 } // namespace nn
65 } // namespace android