| /* |
| * Copyright (C) 2017 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. |
| */ |
| |
| package com.example.android.nn.benchmark; |
| |
| import android.content.res.AssetManager; |
| import android.util.Log; |
| import android.widget.TextView; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| public class NNTestBase { |
| protected final boolean USE_NNAPI = true; |
| |
| // Used to load the 'native-lib' library on application startup. |
| static { |
| System.loadLibrary("nnbenchmark"); |
| } |
| |
| private synchronized native long initModel(String modelFileName); |
| private synchronized native void destroyModel(long modelHandle); |
| private synchronized native boolean resizeInputTensors(long modelHandle, int[] inputShape); |
| private synchronized native boolean runBenchmark(long modelHandle, boolean useNNAPI); |
| |
| protected NNBenchmark mActivity; |
| protected TextView mText; |
| private String mModelName; |
| private long mModelHandle; |
| private int[] mInputShape; |
| |
| public NNTestBase(String modelName, int[] inputShape) { |
| mModelName = modelName; |
| mInputShape = inputShape; |
| mModelHandle = 0; |
| } |
| |
| public final void createBaseTest(NNBenchmark ipact) { |
| mActivity = ipact; |
| String modelFileName = copyAssetToFile(); |
| if (modelFileName != null) { |
| mModelHandle = initModel(modelFileName); |
| if (mModelHandle != 0) { |
| resizeInputTensors(mModelHandle, mInputShape); |
| } else { |
| Log.e(NNBenchmark.TAG, "Failed to init the model"); |
| } |
| } |
| } |
| |
| public String getTestInfo() { |
| return mModelName; |
| } |
| |
| public void runTest() { |
| if (mModelHandle != 0) { |
| runBenchmark(mModelHandle, USE_NNAPI); |
| } |
| } |
| |
| public void destroy() { |
| if (mModelHandle != 0) { |
| destroyModel(mModelHandle); |
| mModelHandle = 0; |
| } |
| } |
| |
| // We need to copy it to cache dir, so that TFlite can load it directly. |
| private String copyAssetToFile() { |
| String outFileName; |
| String modelAssetName = mModelName + ".tflite"; |
| AssetManager assetManager = mActivity.getAssets(); |
| try { |
| InputStream in = assetManager.open(modelAssetName); |
| |
| outFileName = mActivity.getCacheDir().getAbsolutePath() + "/" + modelAssetName; |
| File outFile = new File(outFileName); |
| OutputStream out = new FileOutputStream(outFile); |
| |
| byte[] buffer = new byte[1024]; |
| int read; |
| while((read = in.read(buffer)) != -1){ |
| out.write(buffer, 0, read); |
| } |
| out.flush(); |
| |
| in.close(); |
| out.close(); |
| } catch(IOException e) { |
| Log.e(NNBenchmark.TAG, "Failed to copy asset file: " + modelAssetName, e); |
| return null; |
| } |
| return outFileName; |
| } |
| } |