1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSOR3_H
18#define ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSOR3_H
19
20#include <utils/Thread.h>
21#include <utils/String16.h>
22#include <utils/Vector.h>
23#include <utils/Mutex.h>
24#include <utils/Condition.h>
25#include <gui/BufferItem.h>
26#include <gui/BufferItemConsumer.h>
27#include <camera/CameraMetadata.h>
28
29#include "api1/client2/FrameProcessor.h"
30#include "api1/client2/ZslProcessorInterface.h"
31#include "device3/Camera3ZslStream.h"
32
33namespace android {
34
35class Camera2Client;
36
37namespace camera2 {
38
39class CaptureSequencer;
40class Parameters;
41
42/***
43 * ZSL queue processing
44 */
45class ZslProcessor3 :
46                    public ZslProcessorInterface,
47                    public camera3::Camera3StreamBufferListener,
48            virtual public Thread,
49            virtual public FrameProcessor::FilteredListener {
50  public:
51    ZslProcessor3(sp<Camera2Client> client, wp<CaptureSequencer> sequencer);
52    ~ZslProcessor3();
53
54    // From FrameProcessor::FilteredListener
55    virtual void onResultAvailable(const CaptureResult &result);
56
57    /**
58     ****************************************
59     * ZslProcessorInterface implementation *
60     ****************************************
61     */
62
63    virtual status_t updateStream(const Parameters &params);
64    virtual status_t deleteStream();
65    virtual int getStreamId() const;
66
67    virtual status_t pushToReprocess(int32_t requestId);
68    virtual status_t clearZslQueue();
69
70    void dump(int fd, const Vector<String16>& args) const;
71
72  protected:
73    /**
74     **********************************************
75     * Camera3StreamBufferListener implementation *
76     **********************************************
77     */
78    typedef camera3::Camera3StreamBufferListener::BufferInfo BufferInfo;
79    // Buffer was acquired by the HAL
80    virtual void onBufferAcquired(const BufferInfo& bufferInfo);
81    // Buffer was released by the HAL
82    virtual void onBufferReleased(const BufferInfo& bufferInfo);
83
84  private:
85    static const nsecs_t kWaitDuration = 10000000; // 10 ms
86    nsecs_t mLatestClearedBufferTimestamp;
87
88    enum {
89        RUNNING,
90        LOCKED
91    } mState;
92
93    wp<Camera2Client> mClient;
94    wp<CaptureSequencer> mSequencer;
95
96    const int mId;
97
98    mutable Mutex mInputMutex;
99
100    enum {
101        NO_STREAM = -1
102    };
103
104    int mZslStreamId;
105    sp<camera3::Camera3ZslStream> mZslStream;
106
107    struct ZslPair {
108        BufferItem buffer;
109        CameraMetadata frame;
110    };
111
112    static const int32_t kDefaultMaxPipelineDepth = 4;
113    size_t mBufferQueueDepth;
114    size_t mFrameListDepth;
115    Vector<CameraMetadata> mFrameList;
116    size_t mFrameListHead;
117
118    ZslPair mNextPair;
119
120    Vector<ZslPair> mZslQueue;
121    size_t mZslQueueHead;
122    size_t mZslQueueTail;
123
124    CameraMetadata mLatestCapturedRequest;
125
126    bool mHasFocuser;
127
128    virtual bool threadLoop();
129
130    status_t clearZslQueueLocked();
131
132    void clearZslResultQueueLocked();
133
134    void dumpZslQueue(int id) const;
135
136    nsecs_t getCandidateTimestampLocked(size_t* metadataIdx) const;
137
138    bool isFixedFocusMode(uint8_t afMode) const;
139
140    // Update the post-processing metadata with the default still capture request template
141    status_t updateRequestWithDefaultStillRequest(CameraMetadata &request) const;
142};
143
144
145}; //namespace camera2
146}; //namespace android
147
148#endif
149