| /* |
| * Copyright 2019 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 androidx.camera.camera2.internal; |
| |
| import static androidx.camera.core.impl.ImageOutputConfig.DEFAULT_ASPECT_RATIO_LANDSCAPE; |
| import static androidx.camera.core.impl.ImageOutputConfig.DEFAULT_ASPECT_RATIO_PORTRAIT; |
| |
| import android.content.Context; |
| import android.hardware.camera2.CameraDevice; |
| import android.view.WindowManager; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| import androidx.camera.core.CameraInfo; |
| import androidx.camera.core.Preview; |
| import androidx.camera.core.impl.CaptureConfig; |
| import androidx.camera.core.impl.ConfigProvider; |
| import androidx.camera.core.impl.PreviewConfig; |
| import androidx.camera.core.impl.SessionConfig; |
| |
| /** |
| * Provides defaults for {@link PreviewConfig} in the Camera2 implementation. |
| */ |
| public final class PreviewConfigProvider implements ConfigProvider<PreviewConfig> { |
| private static final String TAG = "PreviewConfigProvider"; |
| |
| private final WindowManager mWindowManager; |
| |
| public PreviewConfigProvider(@NonNull Context context) { |
| mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); |
| } |
| |
| @Override |
| @NonNull |
| public PreviewConfig getConfig(@Nullable CameraInfo cameraInfo) { |
| Preview.Builder builder = Preview.Builder.fromConfig( |
| Preview.DEFAULT_CONFIG.getConfig(cameraInfo)); |
| |
| // SessionConfig containing all intrinsic properties needed for Preview |
| SessionConfig.Builder sessionBuilder = new SessionConfig.Builder(); |
| sessionBuilder.setTemplateType(CameraDevice.TEMPLATE_PREVIEW); |
| |
| // Add options to UseCaseConfig |
| builder.setDefaultSessionConfig(sessionBuilder.build()); |
| builder.setSessionOptionUnpacker(Camera2SessionOptionUnpacker.INSTANCE); |
| |
| CaptureConfig.Builder captureBuilder = new CaptureConfig.Builder(); |
| captureBuilder.setTemplateType(CameraDevice.TEMPLATE_PREVIEW); |
| builder.setDefaultCaptureConfig(captureBuilder.build()); |
| builder.setCaptureOptionUnpacker(Camera2CaptureOptionUnpacker.INSTANCE); |
| |
| int targetRotation = mWindowManager.getDefaultDisplay().getRotation(); |
| builder.setTargetRotation(targetRotation); |
| |
| // Add options that requires camera info to UseCaseConfig |
| if (cameraInfo != null) { |
| int rotationDegrees = cameraInfo.getSensorRotationDegrees(targetRotation); |
| boolean isRotateNeeded = (rotationDegrees == 90 || rotationDegrees == 270); |
| builder.setTargetAspectRatioCustom(isRotateNeeded ? DEFAULT_ASPECT_RATIO_PORTRAIT |
| : DEFAULT_ASPECT_RATIO_LANDSCAPE); |
| } |
| |
| return builder.getUseCaseConfig(); |
| } |
| } |