| /* |
| * Copyright 2020 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.pipe.testing |
| |
| import android.hardware.camera2.CaptureRequest |
| import androidx.camera.camera2.pipe.Request |
| import androidx.camera.camera2.pipe.impl.RequestProcessor |
| import androidx.camera.camera2.pipe.impl.TokenLock |
| import androidx.camera.camera2.pipe.impl.TokenLockImpl |
| import kotlinx.coroutines.channels.Channel |
| import kotlinx.coroutines.withTimeout |
| |
| /** |
| * Fake implementation of a [RequestProcessor] for tests. |
| */ |
| class FakeRequestProcessor : RequestProcessor { |
| private val eventChannel = Channel<Event>(Channel.UNLIMITED) |
| |
| val requestQueue: MutableList<FakeRequest> = mutableListOf() |
| var repeatingRequest: FakeRequest? = null |
| |
| var rejectRequests = false |
| var abortInvoked = false |
| private set |
| var disconnectInvoked = false |
| private set |
| var stopInvoked = false |
| private set |
| |
| private val tokenLock = TokenLockImpl(1) |
| private var token: TokenLock.Token? = null |
| |
| data class FakeRequest( |
| val burst: List<Request>, |
| val extraRequestParameters: Map<CaptureRequest.Key<*>, Any> = emptyMap(), |
| val requireStreams: Boolean = false |
| ) |
| |
| override fun submit( |
| request: Request, |
| extraRequestParameters: Map<CaptureRequest.Key<*>, Any>, |
| requireSurfacesForAllStreams: Boolean |
| ): Boolean { |
| val fakeRequest = |
| FakeRequest(listOf(request), extraRequestParameters, requireSurfacesForAllStreams) |
| |
| if (rejectRequests || disconnectInvoked || stopInvoked) { |
| eventChannel.offer(Event(request = fakeRequest, rejected = true)) |
| return false |
| } |
| |
| requestQueue.add(fakeRequest) |
| eventChannel.offer(Event(request = fakeRequest, submit = true)) |
| |
| return true |
| } |
| |
| override fun submit( |
| requests: List<Request>, |
| extraRequestParameters: Map<CaptureRequest.Key<*>, Any>, |
| requireSurfacesForAllStreams: Boolean |
| ): Boolean { |
| val fakeRequest = |
| FakeRequest(requests, extraRequestParameters, requireSurfacesForAllStreams) |
| if (rejectRequests || disconnectInvoked || stopInvoked) { |
| eventChannel.offer(Event(request = fakeRequest, rejected = true)) |
| return false |
| } |
| |
| requestQueue.add(fakeRequest) |
| eventChannel.offer(Event(request = fakeRequest, submit = true)) |
| |
| return true |
| } |
| |
| override fun setRepeating( |
| request: Request, |
| extraRequestParameters: Map<CaptureRequest.Key<*>, Any>, |
| requireSurfacesForAllStreams: Boolean |
| ): Boolean { |
| val fakeRequest = |
| FakeRequest(listOf(request), extraRequestParameters, requireSurfacesForAllStreams) |
| if (rejectRequests || disconnectInvoked || stopInvoked) { |
| eventChannel.offer(Event(request = fakeRequest, rejected = true)) |
| return false |
| } |
| |
| repeatingRequest = fakeRequest |
| eventChannel.offer(Event(request = fakeRequest, setRepeating = true)) |
| return true |
| } |
| |
| override fun abort() { |
| abortInvoked = true |
| eventChannel.offer(Event(abort = true)) |
| } |
| |
| override fun disconnect() { |
| disconnectInvoked = true |
| eventChannel.offer(Event(disconnect = true)) |
| } |
| |
| override fun stop() { |
| stopInvoked = true |
| eventChannel.offer(Event(stop = true)) |
| } |
| |
| /** |
| * Get the next event from queue with an option to specify a timeout for tests. |
| */ |
| suspend fun nextEvent(timeMillis: Long = 25): Event = withTimeout(timeMillis) { |
| eventChannel.receive() |
| } |
| } |
| |
| data class Event( |
| val request: FakeRequestProcessor.FakeRequest? = null, |
| val rejected: Boolean = false, |
| val abort: Boolean = false, |
| val disconnect: Boolean = false, |
| val stop: Boolean = false, |
| val submit: Boolean = false, |
| val setRepeating: Boolean = false |
| ) |