CameraDeviceClient.h revision f8b2a6f7dea06234c7966798d9363d2d236488a6 
190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)/*
290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * Copyright (C) 2013 The Android Open Source Project
390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) *
490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * Licensed under the Apache License, Version 2.0 (the "License");
590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * you may not use this file except in compliance with the License.
690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * You may obtain a copy of the License at
790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) *
890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) *      http://www.apache.org/licenses/LICENSE-2.0
990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) *
1090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * Unless required by applicable law or agreed to in writing, software
1190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * distributed under the License is distributed on an "AS IS" BASIS,
1290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * See the License for the specific language governing permissions and
1490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * limitations under the License.
1590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) */
1690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)
1790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#ifndef ANDROID_SERVERS_CAMERA_PHOTOGRAPHY_CAMERADEVICECLIENT_H
18cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#define ANDROID_SERVERS_CAMERA_PHOTOGRAPHY_CAMERADEVICECLIENT_H
1990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)
2090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#include <camera/camera2/ICameraDeviceUser.h>
2190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#include <camera/camera2/ICameraDeviceCallbacks.h>
2290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)
2390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#include "CameraService.h"
2490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#include "common/FrameProcessorBase.h"
2590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#include "common/Camera2ClientBase.h"
2690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)
2790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)namespace android {
2890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)
2990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)struct CameraDeviceClientBase :
30        public CameraService::BasicClient, public BnCameraDeviceUser
31{
32    typedef ICameraDeviceCallbacks TCamCallbacks;
33
34    const sp<ICameraDeviceCallbacks>& getRemoteCallback() {
35        return mRemoteCallback;
36    }
37
38protected:
39    CameraDeviceClientBase(const sp<CameraService>& cameraService,
40            const sp<ICameraDeviceCallbacks>& remoteCallback,
41            const String16& clientPackageName,
42            int cameraId,
43            int cameraFacing,
44            int clientPid,
45            uid_t clientUid,
46            int servicePid);
47
48    virtual void notifyError();
49
50    sp<ICameraDeviceCallbacks> mRemoteCallback;
51};
52
53/**
54 * Implements the binder ICameraDeviceUser API,
55 * meant for HAL3-public implementation of
56 * android.hardware.photography.CameraDevice
57 */
58class CameraDeviceClient :
59        public Camera2ClientBase<CameraDeviceClientBase>,
60        public camera2::FrameProcessorBase::FilteredListener
61{
62public:
63    /**
64     * ICameraDeviceUser interface (see ICameraDeviceUser for details)
65     */
66
67    // Note that the callee gets a copy of the metadata.
68    virtual int           submitRequest(sp<CaptureRequest> request,
69                                        bool streaming = false);
70    virtual status_t      cancelRequest(int requestId);
71
72    // Returns -EBUSY if device is not idle
73    virtual status_t      deleteStream(int streamId);
74
75    virtual status_t      createStream(
76            int width,
77            int height,
78            int format,
79            const sp<IGraphicBufferProducer>& bufferProducer);
80
81    // Create a request object from a template.
82    virtual status_t      createDefaultRequest(int templateId,
83                                               /*out*/
84                                               CameraMetadata* request);
85
86    // Get the static metadata for the camera
87    // -- Caller owns the newly allocated metadata
88    virtual status_t      getCameraInfo(/*out*/CameraMetadata* info);
89
90    // Wait until all the submitted requests have finished processing
91    virtual status_t      waitUntilIdle();
92
93    // Flush all active and pending requests as fast as possible
94    virtual status_t      flush();
95
96    /**
97     * Interface used by CameraService
98     */
99
100    CameraDeviceClient(const sp<CameraService>& cameraService,
101            const sp<ICameraDeviceCallbacks>& remoteCallback,
102            const String16& clientPackageName,
103            int cameraId,
104            int cameraFacing,
105            int clientPid,
106            uid_t clientUid,
107            int servicePid);
108    virtual ~CameraDeviceClient();
109
110    virtual status_t      initialize(camera_module_t *module);
111
112    virtual status_t      dump(int fd, const Vector<String16>& args);
113
114    /**
115     * Interface used by independent components of CameraDeviceClient.
116     */
117protected:
118    /** FilteredListener implementation **/
119    virtual void          onFrameAvailable(int32_t frameId,
120                                           const CameraMetadata& frame);
121    virtual void          detachDevice();
122
123    // Calculate the ANativeWindow transform from android.sensor.orientation
124    status_t              getRotationTransformLocked(/*out*/int32_t* transform);
125
126private:
127    /** ICameraDeviceUser interface-related private members */
128
129    /** Preview callback related members */
130    sp<camera2::FrameProcessorBase> mFrameProcessor;
131    static const int32_t FRAME_PROCESSOR_LISTENER_MIN_ID = 0;
132    static const int32_t FRAME_PROCESSOR_LISTENER_MAX_ID = 0x7fffffffL;
133
134    /** Utility members */
135    bool enforceRequestPermissions(CameraMetadata& metadata);
136
137    // IGraphicsBufferProducer binder -> Stream ID
138    KeyedVector<sp<IBinder>, int> mStreamMap;
139
140    // Stream ID
141    Vector<int> mStreamingRequestList;
142
143    int32_t mRequestIdCounter;
144};
145
146}; // namespace android
147
148#endif
149