1 /* Copyright 2018 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 #ifndef TENSORFLOW_LITE_TOOLS_OPTIMIZE_LOGGING_OP_RESOLVER_H_
16 #define TENSORFLOW_LITE_TOOLS_OPTIMIZE_LOGGING_OP_RESOLVER_H_
17 
18 #include <set>
19 #include <unordered_map>
20 
21 #include "tensorflow/lite/core/api/op_resolver.h"
22 #include "tensorflow/lite/mutable_op_resolver.h"
23 #include "tensorflow/lite/op_resolver.h"
24 #include "tensorflow/lite/tools/optimize/calibration/calibration_common.h"
25 
26 namespace tflite {
27 namespace optimize {
28 namespace calibration {
29 // A resolver that replaces the kernel invocations with a wrapper
30 // eval function.
31 class LoggingOpResolver : public OpResolver {
32  public:
33   // Creates an instance of |LoggingOpResolver|.
34   // All |TfLiteRegistration.invoke| functions are replaced by
35   // |logging_eval_fn|.
36   // TODO(shashishekhar): This interface needs to change for custom ops and
37   // BuiltinOps that need special logging implementations.
38   LoggingOpResolver(const BuiltinOpsSet& ops_to_replace,
39                     const OpResolver& base_resolver,
40                     KernelEvalFuncPtr logging_eval_fn);
41 
42   const TfLiteRegistration* FindOp(BuiltinOperator op,
43                                    int version) const override;
44 
45   KernelEvalFuncPtr GetWrappedKernelInvoke(BuiltinOperator op,
46                                            int version) const;
47   const TfLiteRegistration* FindOp(const char* op, int version) const override;
48 
49  private:
50   BuiltinOpsMap<std::unique_ptr<TfLiteRegistration>>
51       builtin_op_registration_map_;
52   BuiltinOpsMap<KernelEvalFuncPtr> builtin_op_evalfn_map_;
53 };
54 
55 }  // namespace calibration
56 }  // namespace optimize
57 }  // namespace tflite
58 
59 #endif  // TENSORFLOW_LITE_TOOLS_OPTIMIZE_LOGGING_OP_RESOLVER_H_
60