CameraDeviceClient.h revision 7b82efe7a376c882f8f938e1c41b8311a8cdda4a
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_PHOTOGRAPHY_CAMERADEVICECLIENT_H 18#define ANDROID_SERVERS_CAMERA_PHOTOGRAPHY_CAMERADEVICECLIENT_H 19 20#include <camera/camera2/ICameraDeviceUser.h> 21#include <camera/camera2/ICameraDeviceCallbacks.h> 22 23#include "CameraService.h" 24#include "common/FrameProcessorBase.h" 25#include "common/Camera2ClientBase.h" 26 27namespace android { 28 29struct 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 * Interface used by CameraService 94 */ 95 96 CameraDeviceClient(const sp<CameraService>& cameraService, 97 const sp<ICameraDeviceCallbacks>& remoteCallback, 98 const String16& clientPackageName, 99 int cameraId, 100 int cameraFacing, 101 int clientPid, 102 uid_t clientUid, 103 int servicePid); 104 virtual ~CameraDeviceClient(); 105 106 virtual status_t initialize(camera_module_t *module); 107 108 virtual status_t dump(int fd, const Vector<String16>& args); 109 110 /** 111 * Interface used by independent components of CameraDeviceClient. 112 */ 113protected: 114 /** FilteredListener implementation **/ 115 virtual void onFrameAvailable(int32_t frameId, 116 const CameraMetadata& frame); 117 virtual void detachDevice(); 118 119private: 120 /** ICameraDeviceUser interface-related private members */ 121 122 /** Preview callback related members */ 123 sp<camera2::FrameProcessorBase> mFrameProcessor; 124 static const int32_t FRAME_PROCESSOR_LISTENER_MIN_ID = 0; 125 static const int32_t FRAME_PROCESSOR_LISTENER_MAX_ID = 0x7fffffffL; 126 127 /** Utility members */ 128 bool enforceRequestPermissions(CameraMetadata& metadata); 129 130 // IGraphicsBufferProducer binder -> Stream ID 131 KeyedVector<sp<IBinder>, int> mStreamMap; 132 133 // Stream ID 134 Vector<int> mStreamingRequestList; 135 136 int32_t mRequestIdCounter; 137}; 138 139}; // namespace android 140 141#endif 142