| /* |
| * Copyright (C) 2015 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 android.hardware.camera2.params; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.SystemApi; |
| import android.graphics.ImageFormat; |
| import android.hardware.camera2.CameraCaptureSession; |
| import android.hardware.camera2.CameraDevice; |
| import android.hardware.camera2.utils.HashCodeHelpers; |
| import android.hardware.camera2.utils.SurfaceUtils; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.Log; |
| import android.util.Size; |
| import android.view.Surface; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Collections; |
| import java.util.ArrayList; |
| |
| import static com.android.internal.util.Preconditions.*; |
| |
| /** |
| * A class for describing camera output, which contains a {@link Surface} and its specific |
| * configuration for creating capture session. |
| * |
| * <p>There are several ways to instantiate, modify and use OutputConfigurations. The most common |
| * and recommended usage patterns are summarized in the following list:</p> |
| *<ul> |
| * <li>Passing a {@link Surface} to the constructor and using the OutputConfiguration instance as |
| * argument to {@link CameraDevice#createCaptureSessionByOutputConfigurations}. This is the most |
| * frequent usage and clients should consider it first before other more complicated alternatives. |
| * </li> |
| * |
| * <li>Passing only a surface source class as an argument to the constructor. This is usually |
| * followed by a call to create a capture session |
| * (see {@link CameraDevice#createCaptureSessionByOutputConfigurations} and a {@link Surface} add |
| * call {@link #addSurface} with a valid {@link Surface}. The sequence completes with |
| * {@link CameraCaptureSession#finalizeOutputConfigurations}. This is the deferred usage case which |
| * aims to enhance performance by allowing the resource-intensive capture session create call to |
| * execute in parallel with any {@link Surface} initialization, such as waiting for a |
| * {@link android.view.SurfaceView} to be ready as part of the UI initialization.</li> |
| * |
| * <li>The third and most complex usage pattern inlvolves surface sharing. Once instantiated an |
| * OutputConfiguration can be enabled for surface sharing via {@link #enableSurfaceSharing}. This |
| * must be done before creating a new capture session and enables calls to |
| * {@link CameraCaptureSession#updateOutputConfiguration}. An OutputConfiguration with enabled |
| * surface sharing can be modified via {@link #addSurface} or {@link #removeSurface}. The updates |
| * to this OutputConfiguration will only come into effect after |
| * {@link CameraCaptureSession#updateOutputConfiguration} returns without throwing exceptions. |
| * Such updates can be done as long as the session is active. Clients should always consider the |
| * additional requirements and limitations placed on the output surfaces (for more details see |
| * {@link #enableSurfaceSharing}, {@link #addSurface}, {@link #removeSurface}, |
| * {@link CameraCaptureSession#updateOutputConfiguration}). A trade-off exists between additional |
| * complexity and flexibility. If exercised correctly surface sharing can switch between different |
| * output surfaces without interrupting any ongoing repeating capture requests. This saves time and |
| * can significantly improve the user experience.</li> |
| * |
| * <li>Surface sharing can be used in combination with deferred surfaces. The rules from both cases |
| * are combined and clients must call {@link #enableSurfaceSharing} before creating a capture |
| * session. Attach and/or remove output surfaces via {@link #addSurface}/{@link #removeSurface} and |
| * finalize the configuration using {@link CameraCaptureSession#finalizeOutputConfigurations}. |
| * {@link CameraCaptureSession#updateOutputConfiguration} can be called after the configuration |
| * finalize method returns without exceptions.</li> |
| * |
| * </ul> |
| * |
| * <p>Please note that surface sharing is currently only enabled for outputs that use the |
| * {@link ImageFormat#PRIVATE} format. This includes surface sources like |
| * {@link android.view.SurfaceView}, {@link android.media.MediaRecorder}, |
| * {@link android.graphics.SurfaceTexture} and {@link android.media.ImageReader}, configured using |
| * the aforementioned format.</p> |
| * |
| * @see CameraDevice#createCaptureSessionByOutputConfigurations |
| * |
| */ |
| public final class OutputConfiguration implements Parcelable { |
| |
| /** |
| * Rotation constant: 0 degree rotation (no rotation) |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final int ROTATION_0 = 0; |
| |
| /** |
| * Rotation constant: 90 degree counterclockwise rotation. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final int ROTATION_90 = 1; |
| |
| /** |
| * Rotation constant: 180 degree counterclockwise rotation. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final int ROTATION_180 = 2; |
| |
| /** |
| * Rotation constant: 270 degree counterclockwise rotation. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final int ROTATION_270 = 3; |
| |
| /** |
| * Invalid surface group ID. |
| * |
| *<p>An {@link OutputConfiguration} with this value indicates that the included surface |
| *doesn't belong to any surface group.</p> |
| */ |
| public static final int SURFACE_GROUP_ID_NONE = -1; |
| |
| /** |
| * Create a new {@link OutputConfiguration} instance with a {@link Surface}. |
| * |
| * @param surface |
| * A Surface for camera to output to. |
| * |
| * <p>This constructor creates a default configuration, with a surface group ID of |
| * {@value #SURFACE_GROUP_ID_NONE}.</p> |
| * |
| */ |
| public OutputConfiguration(@NonNull Surface surface) { |
| this(SURFACE_GROUP_ID_NONE, surface, ROTATION_0); |
| } |
| |
| /** |
| * Unknown surface source type. |
| */ |
| private final int SURFACE_TYPE_UNKNOWN = -1; |
| |
| /** |
| * The surface is obtained from {@link android.view.SurfaceView}. |
| */ |
| private final int SURFACE_TYPE_SURFACE_VIEW = 0; |
| |
| /** |
| * The surface is obtained from {@link android.graphics.SurfaceTexture}. |
| */ |
| private final int SURFACE_TYPE_SURFACE_TEXTURE = 1; |
| |
| /** |
| * Maximum number of surfaces supported by one {@link OutputConfiguration}. |
| * |
| * <p>The combined number of surfaces added by the constructor and |
| * {@link OutputConfiguration#addSurface} should not exceed this value.</p> |
| * |
| */ |
| private static final int MAX_SURFACES_COUNT = 4; |
| |
| /** |
| * Create a new {@link OutputConfiguration} instance with a {@link Surface}, |
| * with a surface group ID. |
| * |
| * <p> |
| * A surface group ID is used to identify which surface group this output surface belongs to. A |
| * surface group is a group of output surfaces that are not intended to receive camera output |
| * buffer streams simultaneously. The {@link CameraDevice} may be able to share the buffers used |
| * by all the surfaces from the same surface group, therefore may reduce the overall memory |
| * footprint. The application should only set the same set ID for the streams that are not |
| * simultaneously streaming. A negative ID indicates that this surface doesn't belong to any |
| * surface group. The default value is {@value #SURFACE_GROUP_ID_NONE}.</p> |
| * |
| * <p>For example, a video chat application that has an adaptive output resolution feature would |
| * need two (or more) output resolutions, to switch resolutions without any output glitches. |
| * However, at any given time, only one output is active to minimize outgoing network bandwidth |
| * and encoding overhead. To save memory, the application should set the video outputs to have |
| * the same non-negative group ID, so that the camera device can share the same memory region |
| * for the alternating outputs.</p> |
| * |
| * <p>It is not an error to include output streams with the same group ID in the same capture |
| * request, but the resulting memory consumption may be higher than if the two streams were |
| * not in the same surface group to begin with, especially if the outputs have substantially |
| * different dimensions.</p> |
| * |
| * @param surfaceGroupId |
| * A group ID for this output, used for sharing memory between multiple outputs. |
| * @param surface |
| * A Surface for camera to output to. |
| * |
| */ |
| public OutputConfiguration(int surfaceGroupId, @NonNull Surface surface) { |
| this(surfaceGroupId, surface, ROTATION_0); |
| } |
| |
| /** |
| * Create a new {@link OutputConfiguration} instance. |
| * |
| * <p>This constructor takes an argument for desired camera rotation</p> |
| * |
| * @param surface |
| * A Surface for camera to output to. |
| * @param rotation |
| * The desired rotation to be applied on camera output. Value must be one of |
| * ROTATION_[0, 90, 180, 270]. Note that when the rotation is 90 or 270 degrees, |
| * application should make sure corresponding surface size has width and height |
| * transposed relative to the width and height without rotation. For example, |
| * if application needs camera to capture 1280x720 picture and rotate it by 90 degree, |
| * application should set rotation to {@code ROTATION_90} and make sure the |
| * corresponding Surface size is 720x1280. Note that {@link CameraDevice} might |
| * throw {@code IllegalArgumentException} if device cannot perform such rotation. |
| * @hide |
| */ |
| @SystemApi |
| public OutputConfiguration(@NonNull Surface surface, int rotation) { |
| this(SURFACE_GROUP_ID_NONE, surface, rotation); |
| } |
| |
| /** |
| * Create a new {@link OutputConfiguration} instance, with rotation and a group ID. |
| * |
| * <p>This constructor takes an argument for desired camera rotation and for the surface group |
| * ID. See {@link #OutputConfiguration(int, Surface)} for details of the group ID.</p> |
| * |
| * @param surfaceGroupId |
| * A group ID for this output, used for sharing memory between multiple outputs. |
| * @param surface |
| * A Surface for camera to output to. |
| * @param rotation |
| * The desired rotation to be applied on camera output. Value must be one of |
| * ROTATION_[0, 90, 180, 270]. Note that when the rotation is 90 or 270 degrees, |
| * application should make sure corresponding surface size has width and height |
| * transposed relative to the width and height without rotation. For example, |
| * if application needs camera to capture 1280x720 picture and rotate it by 90 degree, |
| * application should set rotation to {@code ROTATION_90} and make sure the |
| * corresponding Surface size is 720x1280. Note that {@link CameraDevice} might |
| * throw {@code IllegalArgumentException} if device cannot perform such rotation. |
| * @hide |
| */ |
| @SystemApi |
| public OutputConfiguration(int surfaceGroupId, @NonNull Surface surface, int rotation) { |
| checkNotNull(surface, "Surface must not be null"); |
| checkArgumentInRange(rotation, ROTATION_0, ROTATION_270, "Rotation constant"); |
| mSurfaceGroupId = surfaceGroupId; |
| mSurfaceType = SURFACE_TYPE_UNKNOWN; |
| mSurfaces = new ArrayList<Surface>(); |
| mSurfaces.add(surface); |
| mRotation = rotation; |
| mConfiguredSize = SurfaceUtils.getSurfaceSize(surface); |
| mConfiguredFormat = SurfaceUtils.getSurfaceFormat(surface); |
| mConfiguredDataspace = SurfaceUtils.getSurfaceDataspace(surface); |
| mConfiguredGenerationId = surface.getGenerationId(); |
| mIsDeferredConfig = false; |
| mIsShared = false; |
| } |
| |
| /** |
| * Create a new {@link OutputConfiguration} instance, with desired Surface size and Surface |
| * source class. |
| * <p> |
| * This constructor takes an argument for desired Surface size and the Surface source class |
| * without providing the actual output Surface. This is used to setup an output configuration |
| * with a deferred Surface. The application can use this output configuration to create a |
| * session. |
| * </p> |
| * <p> |
| * However, the actual output Surface must be set via {@link #addSurface} and the deferred |
| * Surface configuration must be finalized via {@link |
| * CameraCaptureSession#finalizeOutputConfigurations} before submitting a request with this |
| * Surface target. The deferred Surface can only be obtained either from {@link |
| * android.view.SurfaceView} by calling {@link android.view.SurfaceHolder#getSurface}, or from |
| * {@link android.graphics.SurfaceTexture} via |
| * {@link android.view.Surface#Surface(android.graphics.SurfaceTexture)}). |
| * </p> |
| * |
| * @param surfaceSize Size for the deferred surface. |
| * @param klass a non-{@code null} {@link Class} object reference that indicates the source of |
| * this surface. Only {@link android.view.SurfaceHolder SurfaceHolder.class} and |
| * {@link android.graphics.SurfaceTexture SurfaceTexture.class} are supported. |
| * @throws IllegalArgumentException if the Surface source class is not supported, or Surface |
| * size is zero. |
| */ |
| public <T> OutputConfiguration(@NonNull Size surfaceSize, @NonNull Class<T> klass) { |
| checkNotNull(klass, "surfaceSize must not be null"); |
| checkNotNull(klass, "klass must not be null"); |
| if (klass == android.view.SurfaceHolder.class) { |
| mSurfaceType = SURFACE_TYPE_SURFACE_VIEW; |
| } else if (klass == android.graphics.SurfaceTexture.class) { |
| mSurfaceType = SURFACE_TYPE_SURFACE_TEXTURE; |
| } else { |
| mSurfaceType = SURFACE_TYPE_UNKNOWN; |
| throw new IllegalArgumentException("Unknow surface source class type"); |
| } |
| |
| if (surfaceSize.getWidth() == 0 || surfaceSize.getHeight() == 0) { |
| throw new IllegalArgumentException("Surface size needs to be non-zero"); |
| } |
| |
| mSurfaceGroupId = SURFACE_GROUP_ID_NONE; |
| mSurfaces = new ArrayList<Surface>(); |
| mRotation = ROTATION_0; |
| mConfiguredSize = surfaceSize; |
| mConfiguredFormat = StreamConfigurationMap.imageFormatToInternal(ImageFormat.PRIVATE); |
| mConfiguredDataspace = StreamConfigurationMap.imageFormatToDataspace(ImageFormat.PRIVATE); |
| mConfiguredGenerationId = 0; |
| mIsDeferredConfig = true; |
| mIsShared = false; |
| } |
| |
| /** |
| * Enable multiple surfaces sharing the same OutputConfiguration |
| * |
| * <p>For advanced use cases, a camera application may require more streams than the combination |
| * guaranteed by {@link CameraDevice#createCaptureSession}. In this case, more than one |
| * compatible surface can be attached to an OutputConfiguration so that they map to one |
| * camera stream, and the outputs share memory buffers when possible. Due to buffer sharing |
| * clients should be careful when adding surface outputs that modify their input data. If such |
| * case exists, camera clients should have an additional mechanism to synchronize read and write |
| * access between individual consumers.</p> |
| * |
| * <p>Two surfaces are compatible in the below cases:</p> |
| * |
| * <li> Surfaces with the same size, format, dataSpace, and Surface source class. In this case, |
| * {@link CameraDevice#createCaptureSessionByOutputConfigurations} is guaranteed to succeed. |
| * |
| * <li> Surfaces with the same size, format, and dataSpace, but different Surface source classes |
| * that are generally not compatible. However, on some devices, the underlying camera device is |
| * able to use the same buffer layout for both surfaces. The only way to discover if this is the |
| * case is to create a capture session with that output configuration. For example, if the |
| * camera device uses the same private buffer format between a SurfaceView/SurfaceTexture and a |
| * MediaRecorder/MediaCodec, {@link CameraDevice#createCaptureSessionByOutputConfigurations} |
| * will succeed. Otherwise, it fails with {@link |
| * CameraCaptureSession.StateCallback#onConfigureFailed}. |
| * </ol> |
| * |
| * <p>To enable surface sharing, this function must be called before {@link |
| * CameraDevice#createCaptureSessionByOutputConfigurations}. Calling this function after {@link |
| * CameraDevice#createCaptureSessionByOutputConfigurations} has no effect.</p> |
| * |
| * <p>Up to {@link #getMaxSharedSurfaceCount} surfaces can be shared for an OutputConfiguration. |
| * The supported surfaces for sharing must be of type SurfaceTexture, SurfaceView, |
| * MediaRecorder, MediaCodec, or implementation defined ImageReader.</p> |
| */ |
| public void enableSurfaceSharing() { |
| mIsShared = true; |
| } |
| |
| /** |
| * Check if this configuration has deferred configuration. |
| * |
| * <p>This will return true if the output configuration was constructed with surface deferred by |
| * {@link OutputConfiguration#OutputConfiguration(Size, Class)}. It will return true even after |
| * the deferred surface is added later by {@link OutputConfiguration#addSurface}.</p> |
| * |
| * @return true if this configuration has deferred surface. |
| * @hide |
| */ |
| public boolean isDeferredConfiguration() { |
| return mIsDeferredConfig; |
| } |
| |
| /** |
| * Add a surface to this OutputConfiguration. |
| * |
| * <p> This function can be called before or after {@link |
| * CameraDevice#createCaptureSessionByOutputConfigurations}. If it's called after, |
| * the application must finalize the capture session with |
| * {@link CameraCaptureSession#finalizeOutputConfigurations}. It is possible to call this method |
| * after the output configurations have been finalized only in cases of enabled surface sharing |
| * see {@link #enableSurfaceSharing}. The modified output configuration must be updated with |
| * {@link CameraCaptureSession#updateOutputConfiguration}.</p> |
| * |
| * <p> If the OutputConfiguration was constructed with a deferred surface by {@link |
| * OutputConfiguration#OutputConfiguration(Size, Class)}, the added surface must be obtained |
| * from {@link android.view.SurfaceView} by calling {@link android.view.SurfaceHolder#getSurface}, |
| * or from {@link android.graphics.SurfaceTexture} via |
| * {@link android.view.Surface#Surface(android.graphics.SurfaceTexture)}).</p> |
| * |
| * <p> If the OutputConfiguration was constructed by other constructors, the added |
| * surface must be compatible with the existing surface. See {@link #enableSurfaceSharing} for |
| * details of compatible surfaces.</p> |
| * |
| * <p> If the OutputConfiguration already contains a Surface, {@link #enableSurfaceSharing} must |
| * be called before calling this function to add a new Surface.</p> |
| * |
| * @param surface The surface to be added. |
| * @throws IllegalArgumentException if the Surface is invalid, the Surface's |
| * dataspace/format doesn't match, or adding the Surface would exceed number of |
| * shared surfaces supported. |
| * @throws IllegalStateException if the Surface was already added to this OutputConfiguration, |
| * or if the OutputConfiguration is not shared and it already has a surface associated |
| * with it. |
| */ |
| public void addSurface(@NonNull Surface surface) { |
| checkNotNull(surface, "Surface must not be null"); |
| if (mSurfaces.contains(surface)) { |
| throw new IllegalStateException("Surface is already added!"); |
| } |
| if (mSurfaces.size() == 1 && !mIsShared) { |
| throw new IllegalStateException("Cannot have 2 surfaces for a non-sharing configuration"); |
| } |
| if (mSurfaces.size() + 1 > MAX_SURFACES_COUNT) { |
| throw new IllegalArgumentException("Exceeds maximum number of surfaces"); |
| } |
| |
| // This will throw IAE is the surface was abandoned. |
| Size surfaceSize = SurfaceUtils.getSurfaceSize(surface); |
| if (!surfaceSize.equals(mConfiguredSize)) { |
| Log.w(TAG, "Added surface size " + surfaceSize + |
| " is different than pre-configured size " + mConfiguredSize + |
| ", the pre-configured size will be used."); |
| } |
| |
| if (mConfiguredFormat != SurfaceUtils.getSurfaceFormat(surface)) { |
| throw new IllegalArgumentException("The format of added surface format doesn't match"); |
| } |
| |
| // If the surface format is PRIVATE, do not enforce dataSpace because camera device may |
| // override it. |
| if (mConfiguredFormat != ImageFormat.PRIVATE && |
| mConfiguredDataspace != SurfaceUtils.getSurfaceDataspace(surface)) { |
| throw new IllegalArgumentException("The dataspace of added surface doesn't match"); |
| } |
| |
| mSurfaces.add(surface); |
| } |
| |
| /** |
| * Remove a surface from this OutputConfiguration. |
| * |
| * <p> Surfaces added via calls to {@link #addSurface} can also be removed from the |
| * OutputConfiguration. The only notable exception is the surface associated with |
| * the OutputConfigration see {@link #getSurface} which was passed as part of the constructor |
| * or was added first in the deferred case |
| * {@link OutputConfiguration#OutputConfiguration(Size, Class)}.</p> |
| * |
| * @param surface The surface to be removed. |
| * |
| * @throws IllegalArgumentException If the surface is associated with this OutputConfiguration |
| * (see {@link #getSurface}) or the surface didn't get added |
| * with {@link #addSurface}. |
| */ |
| public void removeSurface(@NonNull Surface surface) { |
| if (getSurface() == surface) { |
| throw new IllegalArgumentException( |
| "Cannot remove surface associated with this output configuration"); |
| } |
| if (!mSurfaces.remove(surface)) { |
| throw new IllegalArgumentException("Surface is not part of this output configuration"); |
| } |
| } |
| |
| /** |
| * Create a new {@link OutputConfiguration} instance with another {@link OutputConfiguration} |
| * instance. |
| * |
| * @param other Another {@link OutputConfiguration} instance to be copied. |
| * |
| * @hide |
| */ |
| public OutputConfiguration(@NonNull OutputConfiguration other) { |
| if (other == null) { |
| throw new IllegalArgumentException("OutputConfiguration shouldn't be null"); |
| } |
| |
| this.mSurfaces = other.mSurfaces; |
| this.mRotation = other.mRotation; |
| this.mSurfaceGroupId = other.mSurfaceGroupId; |
| this.mSurfaceType = other.mSurfaceType; |
| this.mConfiguredDataspace = other.mConfiguredDataspace; |
| this.mConfiguredFormat = other.mConfiguredFormat; |
| this.mConfiguredSize = other.mConfiguredSize; |
| this.mConfiguredGenerationId = other.mConfiguredGenerationId; |
| this.mIsDeferredConfig = other.mIsDeferredConfig; |
| } |
| |
| /** |
| * Create an OutputConfiguration from Parcel. |
| */ |
| private OutputConfiguration(@NonNull Parcel source) { |
| int rotation = source.readInt(); |
| int surfaceSetId = source.readInt(); |
| int surfaceType = source.readInt(); |
| int width = source.readInt(); |
| int height = source.readInt(); |
| boolean isDeferred = source.readInt() == 1; |
| ArrayList<Surface> surfaces = new ArrayList<Surface>(); |
| source.readTypedList(surfaces, Surface.CREATOR); |
| |
| checkArgumentInRange(rotation, ROTATION_0, ROTATION_270, "Rotation constant"); |
| |
| mSurfaceGroupId = surfaceSetId; |
| mRotation = rotation; |
| mSurfaces = surfaces; |
| mConfiguredSize = new Size(width, height); |
| mIsDeferredConfig = isDeferred; |
| mSurfaces = surfaces; |
| if (mSurfaces.size() > 0) { |
| mSurfaceType = SURFACE_TYPE_UNKNOWN; |
| mConfiguredFormat = SurfaceUtils.getSurfaceFormat(mSurfaces.get(0)); |
| mConfiguredDataspace = SurfaceUtils.getSurfaceDataspace(mSurfaces.get(0)); |
| mConfiguredGenerationId = mSurfaces.get(0).getGenerationId(); |
| } else { |
| mSurfaceType = surfaceType; |
| mConfiguredFormat = StreamConfigurationMap.imageFormatToInternal(ImageFormat.PRIVATE); |
| mConfiguredDataspace = |
| StreamConfigurationMap.imageFormatToDataspace(ImageFormat.PRIVATE); |
| mConfiguredGenerationId = 0; |
| } |
| } |
| |
| /** |
| * Get the maximum supported shared {@link Surface} count. |
| * |
| * @return the maximum number of surfaces that can be added per each OutputConfiguration. |
| * |
| * @see #enableSurfaceSharing |
| */ |
| public static int getMaxSharedSurfaceCount() { |
| return MAX_SURFACES_COUNT; |
| } |
| |
| /** |
| * Get the {@link Surface} associated with this {@link OutputConfiguration}. |
| * |
| * If more than one surface is associated with this {@link OutputConfiguration}, return the |
| * first one as specified in the constructor or {@link OutputConfiguration#addSurface}. |
| */ |
| public @Nullable Surface getSurface() { |
| if (mSurfaces.size() == 0) { |
| return null; |
| } |
| |
| return mSurfaces.get(0); |
| } |
| |
| /** |
| * Get the immutable list of surfaces associated with this {@link OutputConfiguration}. |
| * |
| * @return the list of surfaces associated with this {@link OutputConfiguration} as specified in |
| * the constructor and {@link OutputConfiguration#addSurface}. The list should not be modified. |
| */ |
| @NonNull |
| public List<Surface> getSurfaces() { |
| return Collections.unmodifiableList(mSurfaces); |
| } |
| |
| /** |
| * Get the rotation associated with this {@link OutputConfiguration}. |
| * |
| * @return the rotation associated with this {@link OutputConfiguration}. |
| * Value will be one of ROTATION_[0, 90, 180, 270] |
| * |
| * @hide |
| */ |
| @SystemApi |
| public int getRotation() { |
| return mRotation; |
| } |
| |
| /** |
| * Get the surface group ID associated with this {@link OutputConfiguration}. |
| * |
| * @return the surface group ID associated with this {@link OutputConfiguration}. |
| * The default value is {@value #SURFACE_GROUP_ID_NONE}. |
| */ |
| public int getSurfaceGroupId() { |
| return mSurfaceGroupId; |
| } |
| |
| public static final Parcelable.Creator<OutputConfiguration> CREATOR = |
| new Parcelable.Creator<OutputConfiguration>() { |
| @Override |
| public OutputConfiguration createFromParcel(Parcel source) { |
| try { |
| OutputConfiguration outputConfiguration = new OutputConfiguration(source); |
| return outputConfiguration; |
| } catch (Exception e) { |
| Log.e(TAG, "Exception creating OutputConfiguration from parcel", e); |
| return null; |
| } |
| } |
| |
| @Override |
| public OutputConfiguration[] newArray(int size) { |
| return new OutputConfiguration[size]; |
| } |
| }; |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| if (dest == null) { |
| throw new IllegalArgumentException("dest must not be null"); |
| } |
| dest.writeInt(mRotation); |
| dest.writeInt(mSurfaceGroupId); |
| dest.writeInt(mSurfaceType); |
| dest.writeInt(mConfiguredSize.getWidth()); |
| dest.writeInt(mConfiguredSize.getHeight()); |
| dest.writeInt(mIsDeferredConfig ? 1 : 0); |
| dest.writeInt(mIsShared ? 1 : 0); |
| dest.writeTypedList(mSurfaces); |
| } |
| |
| /** |
| * Check if this {@link OutputConfiguration} is equal to another {@link OutputConfiguration}. |
| * |
| * <p>Two output configurations are only equal if and only if the underlying surfaces, surface |
| * properties (width, height, format, dataspace) when the output configurations are created, |
| * and all other configuration parameters are equal. </p> |
| * |
| * @return {@code true} if the objects were equal, {@code false} otherwise |
| */ |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == null) { |
| return false; |
| } else if (this == obj) { |
| return true; |
| } else if (obj instanceof OutputConfiguration) { |
| final OutputConfiguration other = (OutputConfiguration) obj; |
| if (mRotation != other.mRotation || |
| !mConfiguredSize.equals(other.mConfiguredSize) || |
| mConfiguredFormat != other.mConfiguredFormat || |
| mSurfaceGroupId != other.mSurfaceGroupId || |
| mSurfaceType != other.mSurfaceType || |
| mIsDeferredConfig != other.mIsDeferredConfig || |
| mIsShared != other.mIsShared || |
| mConfiguredFormat != other.mConfiguredFormat || |
| mConfiguredDataspace != other.mConfiguredDataspace || |
| mConfiguredGenerationId != other.mConfiguredGenerationId) |
| return false; |
| |
| int minLen = Math.min(mSurfaces.size(), other.mSurfaces.size()); |
| for (int i = 0; i < minLen; i++) { |
| if (mSurfaces.get(i) != other.mSurfaces.get(i)) |
| return false; |
| } |
| |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int hashCode() { |
| // Need ensure that the hashcode remains unchanged after adding a deferred surface. Otherwise |
| // the deferred output configuration will be lost in the camera streammap after the deferred |
| // surface is set. |
| if (mIsDeferredConfig) { |
| return HashCodeHelpers.hashCode( |
| mRotation, mConfiguredSize.hashCode(), mConfiguredFormat, mConfiguredDataspace, |
| mSurfaceGroupId, mSurfaceType, mIsShared ? 1 : 0); |
| } |
| |
| return HashCodeHelpers.hashCode( |
| mRotation, mSurfaces.hashCode(), mConfiguredGenerationId, |
| mConfiguredSize.hashCode(), mConfiguredFormat, |
| mConfiguredDataspace, mSurfaceGroupId, mIsShared ? 1 : 0); |
| } |
| |
| private static final String TAG = "OutputConfiguration"; |
| private ArrayList<Surface> mSurfaces; |
| private final int mRotation; |
| private final int mSurfaceGroupId; |
| // Surface source type, this is only used by the deferred surface configuration objects. |
| private final int mSurfaceType; |
| |
| // The size, format, and dataspace of the surface when OutputConfiguration is created. |
| private final Size mConfiguredSize; |
| private final int mConfiguredFormat; |
| private final int mConfiguredDataspace; |
| // Surface generation ID to distinguish changes to Surface native internals |
| private final int mConfiguredGenerationId; |
| // Flag indicating if this config has deferred surface. |
| private final boolean mIsDeferredConfig; |
| // Flag indicating if this config has shared surfaces |
| private boolean mIsShared; |
| } |