move native services under services/

moved surfaceflinger, audioflinger, cameraservice

all native services should now reside in this location.

Change-Id: Iee42b83dd2a94c3bf5107ab0895fe2dfcd5337a8

1 files changed, 194 insertions, 0 deletions

diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
new file mode 100644
index 0000000..8193e77
--- /dev/null
+++ b/services/camera/libcameraservice/CameraService.h
@@ -0,0 +1,194 @@
+/*
+**
+** Copyright (C) 2008, The Android Open Source Project
+** Copyright (C) 2008 HTC Inc.
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef ANDROID_SERVERS_CAMERA_CAMERASERVICE_H
+#define ANDROID_SERVERS_CAMERA_CAMERASERVICE_H
+
+#include <camera/ICameraService.h>
+#include <camera/CameraHardwareInterface.h>
+
+/* This needs to be increased if we can have more cameras */
+#define MAX_CAMERAS 2
+
+namespace android {
+
+class MemoryHeapBase;
+class MediaPlayer;
+
+class CameraService: public BnCameraService
+{
+    class Client;
+public:
+    static void         instantiate();
+
+                        CameraService();
+    virtual             ~CameraService();
+
+    virtual int32_t     getNumberOfCameras();
+    virtual status_t    getCameraInfo(int cameraId,
+                                      struct CameraInfo* cameraInfo);
+    virtual sp<ICamera> connect(const sp<ICameraClient>& cameraClient, int cameraId);
+    virtual void        removeClient(const sp<ICameraClient>& cameraClient);
+    virtual sp<Client>  getClientById(int cameraId);
+
+    virtual status_t    dump(int fd, const Vector<String16>& args);
+    virtual status_t    onTransact(uint32_t code, const Parcel& data,
+                                   Parcel* reply, uint32_t flags);
+
+    enum sound_kind {
+        SOUND_SHUTTER = 0,
+        SOUND_RECORDING = 1,
+        NUM_SOUNDS
+    };
+
+    void                loadSound();
+    void                playSound(sound_kind kind);
+    void                releaseSound();
+
+private:
+    Mutex               mServiceLock;
+    wp<Client>          mClient[MAX_CAMERAS];  // protected by mServiceLock
+    int                 mNumberOfCameras;
+
+    // atomics to record whether the hardware is allocated to some client.
+    volatile int32_t    mBusy[MAX_CAMERAS];
+    void                setCameraBusy(int cameraId);
+    void                setCameraFree(int cameraId);
+
+    // sounds
+    Mutex               mSoundLock;
+    sp<MediaPlayer>     mSoundPlayer[NUM_SOUNDS];
+    int                 mSoundRef;  // reference count (release all MediaPlayer when 0)
+
+    class Client : public BnCamera
+    {
+    public:
+        // ICamera interface (see ICamera for details)
+        virtual void            disconnect();
+        virtual status_t        connect(const sp<ICameraClient>& client);
+        virtual status_t        lock();
+        virtual status_t        unlock();
+        virtual status_t        setPreviewDisplay(const sp<ISurface>& surface);
+        virtual void            setPreviewCallbackFlag(int flag);
+        virtual status_t        startPreview();
+        virtual void            stopPreview();
+        virtual bool            previewEnabled();
+        virtual status_t        startRecording();
+        virtual void            stopRecording();
+        virtual bool            recordingEnabled();
+        virtual void            releaseRecordingFrame(const sp<IMemory>& mem);
+        virtual status_t        autoFocus();
+        virtual status_t        cancelAutoFocus();
+        virtual status_t        takePicture();
+        virtual status_t        setParameters(const String8& params);
+        virtual String8         getParameters() const;
+        virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
+    private:
+        friend class CameraService;
+                                Client(const sp<CameraService>& cameraService,
+                                       const sp<ICameraClient>& cameraClient,
+                                       int cameraId,
+                                       int clientPid);
+                                ~Client();
+
+        // return our camera client
+        const sp<ICameraClient>&    getCameraClient() { return mCameraClient; }
+
+        // check whether the calling process matches mClientPid.
+        status_t                checkPid() const;
+        status_t                checkPidAndHardware() const;  // also check mHardware != 0
+
+        // these are internal functions used to set up preview buffers
+        status_t                registerPreviewBuffers();
+        status_t                setOverlay();
+
+        // camera operation mode
+        enum camera_mode {
+            CAMERA_PREVIEW_MODE   = 0,  // frame automatically released
+            CAMERA_RECORDING_MODE = 1,  // frame has to be explicitly released by releaseRecordingFrame()
+        };
+        // these are internal functions used for preview/recording
+        status_t                startCameraMode(camera_mode mode);
+        status_t                startPreviewMode();
+        status_t                startRecordingMode();
+
+        // these are static callback functions
+        static void             notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2, void* user);
+        static void             dataCallback(int32_t msgType, const sp<IMemory>& dataPtr, void* user);
+        static void             dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr, void* user);
+        // convert client from cookie
+        static sp<Client>       getClientFromCookie(void* user);
+        // handlers for messages
+        void                    handleShutter(image_rect_type *size);
+        void                    handlePreviewData(const sp<IMemory>& mem);
+        void                    handlePostview(const sp<IMemory>& mem);
+        void                    handleRawPicture(const sp<IMemory>& mem);
+        void                    handleCompressedPicture(const sp<IMemory>& mem);
+        void                    handleGenericNotify(int32_t msgType, int32_t ext1, int32_t ext2);
+        void                    handleGenericData(int32_t msgType, const sp<IMemory>& dataPtr);
+        void                    handleGenericDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr);
+
+        void                    copyFrameAndPostCopiedFrame(
+                                    const sp<ICameraClient>& client,
+                                    const sp<IMemoryHeap>& heap,
+                                    size_t offset, size_t size);
+
+        // these are initialized in the constructor.
+        sp<CameraService>               mCameraService;  // immutable after constructor
+        sp<ICameraClient>               mCameraClient;
+        int                             mCameraId;       // immutable after constructor
+        pid_t                           mClientPid;
+        sp<CameraHardwareInterface>     mHardware;       // cleared after disconnect()
+        bool                            mUseOverlay;     // immutable after constructor
+        sp<OverlayRef>                  mOverlayRef;
+        int                             mOverlayW;
+        int                             mOverlayH;
+        int                             mPreviewCallbackFlag;
+        int                             mOrientation;
+
+        // Ensures atomicity among the public methods
+        mutable Mutex                   mLock;
+        sp<ISurface>                    mSurface;
+
+        // If the user want us to return a copy of the preview frame (instead
+        // of the original one), we allocate mPreviewBuffer and reuse it if possible.
+        sp<MemoryHeapBase>              mPreviewBuffer;
+
+        // We need to avoid the deadlock when the incoming command thread and
+        // the CameraHardwareInterface callback thread both want to grab mLock.
+        // An extra flag is used to tell the callback thread that it should stop
+        // trying to deliver the callback messages if the client is not
+        // interested in it anymore. For example, if the client is calling
+        // stopPreview(), the preview frame messages do not need to be delivered
+        // anymore.
+
+        // This function takes the same parameter as the enableMsgType() and
+        // disableMsgType() functions in CameraHardwareInterface.
+        void                    enableMsgType(int32_t msgType);
+        void                    disableMsgType(int32_t msgType);
+        volatile int32_t        mMsgEnabled;
+
+        // This function keeps trying to grab mLock, or give up if the message
+        // is found to be disabled. It returns true if mLock is grabbed.
+        bool                    lockIfMessageWanted(int32_t msgType);
+    };
+};
+
+} // namespace android
+
+#endif