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/*
* Copyright (C) 2023 The Android Open Source Project
*
* 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.
*/
#include <cstddef>
#include <mutex>
#include <string>
#pragma once
namespace thermal {
namespace vtestimator {
// Current version only supports single input/output tensors
constexpr int kNumInputTensors = 1;
constexpr int kNumOutputTensors = 1;
typedef void *(*tflitewrapper_create)(int num_input_tensors, int num_output_tensors);
typedef bool (*tflitewrapper_init)(void *handle, const char *model_path);
typedef bool (*tflitewrapper_invoke)(void *handle, float *input_samples, int num_input_samples,
float *output_samples, int num_output_samples);
typedef void (*tflitewrapper_destroy)(void *handle);
struct TFLiteWrapperMethods {
tflitewrapper_create create;
tflitewrapper_init init;
tflitewrapper_invoke invoke;
tflitewrapper_destroy destroy;
mutable std::mutex mutex_;
};
struct VirtualTempEstimatorTFLiteData {
VirtualTempEstimatorTFLiteData(size_t num_input_samples) {
input_buffer = new float[num_input_samples];
input_buffer_size = num_input_samples;
is_initialized = false;
tflite_wrapper = nullptr;
tflite_methods.create = nullptr;
tflite_methods.init = nullptr;
tflite_methods.invoke = nullptr;
tflite_methods.destroy = nullptr;
}
void *tflite_wrapper;
float *input_buffer;
size_t input_buffer_size;
std::string model_path;
TFLiteWrapperMethods tflite_methods;
bool is_initialized;
~VirtualTempEstimatorTFLiteData() {
if (tflite_wrapper && tflite_methods.destroy) {
tflite_methods.destroy(tflite_wrapper);
}
if (input_buffer) {
delete input_buffer;
}
}
};
} // namespace vtestimator
} // namespace thermal
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