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175 lines
4.7 KiB
175 lines
4.7 KiB
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSOR_H
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#define ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSOR_H
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#include <utils/Thread.h>
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#include <utils/String16.h>
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#include <utils/Vector.h>
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#include <utils/Mutex.h>
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#include <utils/Condition.h>
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#include <gui/BufferItem.h>
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#include <gui/BufferItemConsumer.h>
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#include <gui/RingBufferConsumer.h>
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#include <gui/IProducerListener.h>
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#include <camera/CameraMetadata.h>
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#include "api1/client2/FrameProcessor.h"
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namespace android {
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class Camera2Client;
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namespace camera2 {
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class CaptureSequencer;
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struct Parameters;
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/***
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* ZSL queue processing for HALv3.0 or newer
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*/
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class ZslProcessor :
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virtual public Thread,
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virtual public FrameProcessor::FilteredListener {
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public:
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ZslProcessor(sp<Camera2Client> client, wp<CaptureSequencer> sequencer);
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~ZslProcessor();
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// From FrameProcessor::FilteredListener
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virtual void onResultAvailable(const CaptureResult &result);
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/**
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****************************************
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* ZslProcessorInterface implementation *
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****************************************
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*/
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// Update the streams by recreating them if the size/format has changed
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status_t updateStream(const Parameters ¶ms);
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// Delete the underlying CameraDevice streams
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status_t deleteStream();
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// Get ID for use with android.request.outputStreams / inputStreams
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int getStreamId() const;
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/**
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* Submits a ZSL capture request (id = requestId)
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*
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* An appropriate ZSL buffer is selected by the closest timestamp,
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* then we push that buffer to be reprocessed by the HAL.
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* A capture request is created and submitted on behalf of the client.
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*/
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status_t pushToReprocess(int32_t requestId);
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// Flush the ZSL buffer queue, freeing up all the buffers
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status_t clearZslQueue();
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void dump(int fd, const Vector<String16>& args) const;
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private:
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class InputProducerListener : public BnProducerListener {
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public:
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InputProducerListener(wp<ZslProcessor> parent) : mParent(parent) {}
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virtual void onBufferReleased();
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virtual bool needsReleaseNotify() { return true; }
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private:
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wp<ZslProcessor> mParent;
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};
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static const nsecs_t kWaitDuration = 10000000; // 10 ms
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nsecs_t mLatestClearedBufferTimestamp;
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enum {
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RUNNING,
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LOCKED
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} mState;
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enum { NO_BUFFER_AVAILABLE = BufferQueue::NO_BUFFER_AVAILABLE };
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wp<Camera2Client> mClient;
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wp<CaptureSequencer> mSequencer;
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const int mId;
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mutable Mutex mInputMutex;
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enum {
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NO_STREAM = -1
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};
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int mZslStreamId;
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int mInputStreamId;
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struct ZslPair {
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BufferItem buffer;
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CameraMetadata frame;
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};
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static const int32_t kDefaultMaxPipelineDepth = 4;
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size_t mBufferQueueDepth;
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size_t mFrameListDepth;
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Vector<CameraMetadata> mFrameList;
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size_t mFrameListHead;
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ZslPair mNextPair;
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Vector<ZslPair> mZslQueue;
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CameraMetadata mLatestCapturedRequest;
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bool mHasFocuser;
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// Input buffer queued into HAL
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sp<RingBufferConsumer::PinnedBufferItem> mInputBuffer;
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sp<RingBufferConsumer> mProducer;
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sp<IGraphicBufferProducer> mInputProducer;
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int mInputProducerSlot;
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Condition mBuffersToDetachSignal;
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int mBuffersToDetach;
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virtual bool threadLoop();
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status_t clearZslQueueLocked();
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void clearZslResultQueueLocked();
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void dumpZslQueue(int id) const;
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nsecs_t getCandidateTimestampLocked(size_t* metadataIdx) const;
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status_t enqueueInputBufferByTimestamp( nsecs_t timestamp,
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nsecs_t* actualTimestamp);
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status_t clearInputRingBufferLocked(nsecs_t* latestTimestamp);
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void notifyInputReleased();
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void doNotifyInputReleasedLocked();
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bool isFixedFocusMode(uint8_t afMode) const;
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// Update the post-processing metadata with the default still capture request template
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status_t updateRequestWithDefaultStillRequest(CameraMetadata &request) const;
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};
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}; //namespace camera2
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}; //namespace android
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#endif
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