1/*
2 * Copyright (C) 2012 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_CAMERA2CLIENT_H
18#define ANDROID_SERVERS_CAMERA_CAMERA2CLIENT_H
19
20#include "CameraService.h"
21#include "common/CameraDeviceBase.h"
22#include "common/Camera2ClientBase.h"
23#include "api1/client2/Parameters.h"
24#include "api1/client2/FrameProcessor.h"
25//#include "api1/client2/StreamingProcessor.h"
26//#include "api1/client2/JpegProcessor.h"
27//#include "api1/client2/ZslProcessor.h"
28//#include "api1/client2/CaptureSequencer.h"
29//#include "api1/client2/CallbackProcessor.h"
30
31namespace android {
32
33namespace camera2 {
34
35class StreamingProcessor;
36class JpegProcessor;
37class ZslProcessor;
38class CaptureSequencer;
39class CallbackProcessor;
40
41}
42
43class IMemory;
44/**
45 * Interface between android.hardware.Camera API and Camera HAL device for versions
46 * CAMERA_DEVICE_API_VERSION_3_0 and above.
47 */
48class Camera2Client :
49        public Camera2ClientBase<CameraService::Client>
50{
51public:
52    /**
53     * ICamera interface (see ICamera for details)
54     */
55
56    virtual binder::Status  disconnect();
57    virtual status_t        connect(const sp<hardware::ICameraClient>& client);
58    virtual status_t        lock();
59    virtual status_t        unlock();
60    virtual status_t        setPreviewTarget(
61        const sp<IGraphicBufferProducer>& bufferProducer);
62    virtual void            setPreviewCallbackFlag(int flag);
63    virtual status_t        setPreviewCallbackTarget(
64        const sp<IGraphicBufferProducer>& callbackProducer);
65
66    virtual status_t        startPreview();
67    virtual void            stopPreview();
68    virtual bool            previewEnabled();
69    virtual status_t        setVideoBufferMode(int32_t videoBufferMode);
70    virtual status_t        startRecording();
71    virtual void            stopRecording();
72    virtual bool            recordingEnabled();
73    virtual void            releaseRecordingFrame(const sp<IMemory>& mem);
74    virtual void            releaseRecordingFrameHandle(native_handle_t *handle);
75    virtual status_t        autoFocus();
76    virtual status_t        cancelAutoFocus();
77    virtual status_t        takePicture(int msgType);
78    virtual status_t        setParameters(const String8& params);
79    virtual String8         getParameters() const;
80    virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
81    virtual void            notifyError(int32_t errorCode,
82                                        const CaptureResultExtras& resultExtras);
83    virtual status_t        setVideoTarget(const sp<IGraphicBufferProducer>& bufferProducer);
84
85    /**
86     * Interface used by CameraService
87     */
88
89    Camera2Client(const sp<CameraService>& cameraService,
90            const sp<hardware::ICameraClient>& cameraClient,
91            const String16& clientPackageName,
92            int cameraId,
93            int cameraFacing,
94            int clientPid,
95            uid_t clientUid,
96            int servicePid,
97            bool legacyMode);
98
99    virtual ~Camera2Client();
100
101    status_t initialize(CameraModule *module);
102
103    virtual status_t dump(int fd, const Vector<String16>& args);
104
105    virtual status_t dumpClient(int fd, const Vector<String16>& args);
106
107    /**
108     * Interface used by CameraDeviceBase
109     */
110
111    virtual void notifyAutoFocus(uint8_t newState, int triggerId);
112    virtual void notifyAutoExposure(uint8_t newState, int triggerId);
113    virtual void notifyShutter(const CaptureResultExtras& resultExtras,
114                               nsecs_t timestamp);
115
116    /**
117     * Interface used by independent components of Camera2Client.
118     */
119
120    camera2::SharedParameters& getParameters();
121
122    int getPreviewStreamId() const;
123    int getCaptureStreamId() const;
124    int getCallbackStreamId() const;
125    int getRecordingStreamId() const;
126    int getZslStreamId() const;
127
128    status_t registerFrameListener(int32_t minId, int32_t maxId,
129            wp<camera2::FrameProcessor::FilteredListener> listener,
130            bool sendPartials = true);
131    status_t removeFrameListener(int32_t minId, int32_t maxId,
132            wp<camera2::FrameProcessor::FilteredListener> listener);
133
134    status_t stopStream();
135
136    // For the slowJpegMode to create jpeg stream when precapture sequence is done
137    status_t createJpegStreamL(camera2::Parameters &params);
138
139    static size_t calculateBufferSize(int width, int height,
140            int format, int stride);
141
142    static const int32_t kPreviewRequestIdStart = 10000000;
143    static const int32_t kPreviewRequestIdEnd   = 20000000;
144
145    static const int32_t kRecordingRequestIdStart  = 20000000;
146    static const int32_t kRecordingRequestIdEnd    = 30000000;
147
148    static const int32_t kCaptureRequestIdStart = 30000000;
149    static const int32_t kCaptureRequestIdEnd   = 40000000;
150
151    // Constant strings for ATRACE logging
152    static const char* kAutofocusLabel;
153    static const char* kTakepictureLabel;
154
155    // Used with stream IDs
156    static const int NO_STREAM = -1;
157
158private:
159    /** ICamera interface-related private members */
160    typedef camera2::Parameters Parameters;
161
162    status_t setPreviewWindowL(const sp<IBinder>& binder,
163            sp<Surface> window);
164    status_t startPreviewL(Parameters &params, bool restart);
165    void     stopPreviewL();
166    status_t startRecordingL(Parameters &params, bool restart);
167    bool     recordingEnabledL();
168
169    // Individual commands for sendCommand()
170    status_t commandStartSmoothZoomL();
171    status_t commandStopSmoothZoomL();
172    status_t commandSetDisplayOrientationL(int degrees);
173    status_t commandEnableShutterSoundL(bool enable);
174    status_t commandPlayRecordingSoundL();
175    status_t commandStartFaceDetectionL(int type);
176    status_t commandStopFaceDetectionL(Parameters &params);
177    status_t commandEnableFocusMoveMsgL(bool enable);
178    status_t commandPingL();
179    status_t commandSetVideoBufferCountL(size_t count);
180    status_t commandSetVideoFormatL(int format, android_dataspace dataSpace);
181
182    // Current camera device configuration
183    camera2::SharedParameters mParameters;
184
185    /** Camera device-related private members */
186
187    void     setPreviewCallbackFlagL(Parameters &params, int flag);
188    status_t updateRequests(Parameters &params);
189
190    template <typename ProcessorT>
191    status_t updateProcessorStream(sp<ProcessorT> processor, Parameters params);
192    template <typename ProcessorT,
193              status_t (ProcessorT::*updateStreamF)(const Parameters &)>
194    status_t updateProcessorStream(sp<ProcessorT> processor, Parameters params);
195
196    sp<camera2::FrameProcessor> mFrameProcessor;
197
198    /* Preview/Recording related members */
199
200    sp<IBinder> mPreviewSurface;
201    sp<IBinder> mVideoSurface;
202    sp<camera2::StreamingProcessor> mStreamingProcessor;
203
204    /** Preview callback related members */
205
206    sp<camera2::CallbackProcessor> mCallbackProcessor;
207
208    /* Still image capture related members */
209
210    sp<camera2::CaptureSequencer> mCaptureSequencer;
211    sp<camera2::JpegProcessor> mJpegProcessor;
212    sp<camera2::ZslProcessor> mZslProcessor;
213
214    /** Utility members */
215    bool mLegacyMode;
216
217    // Wait until the camera device has received the latest control settings
218    status_t syncWithDevice();
219
220    // Video snapshot jpeg size overriding helper function
221    status_t overrideVideoSnapshotSize(Parameters &params);
222};
223
224}; // namespace android
225
226#endif
227