split libsurfaceflinger_client and libcamera_client out of libui

1 files changed, 379 insertions, 0 deletions

diff --git a/camera/ICamera.cpp b/camera/ICamera.cpp
new file mode 100644
index 0000000..724bd20
--- /dev/null
+++ b/camera/ICamera.cpp
@@ -0,0 +1,379 @@
+/*
+**
+** Copyright 2008, The Android Open Source Project
+**
+** 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.
+*/
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ICamera"
+#include <utils/Log.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <binder/Parcel.h>
+#include <camera/ICamera.h>
+
+namespace android {
+
+enum {
+    DISCONNECT = IBinder::FIRST_CALL_TRANSACTION,
+    SET_PREVIEW_DISPLAY,
+    SET_PREVIEW_CALLBACK_FLAG,
+    START_PREVIEW,
+    STOP_PREVIEW,
+    AUTO_FOCUS,
+    CANCEL_AUTO_FOCUS,
+    TAKE_PICTURE,
+    SET_PARAMETERS,
+    GET_PARAMETERS,
+    SEND_COMMAND,
+    CONNECT,
+    LOCK,
+    UNLOCK,
+    PREVIEW_ENABLED,
+    START_RECORDING,
+    STOP_RECORDING,
+    RECORDING_ENABLED,
+    RELEASE_RECORDING_FRAME,
+};
+
+class BpCamera: public BpInterface<ICamera>
+{
+public:
+    BpCamera(const sp<IBinder>& impl)
+        : BpInterface<ICamera>(impl)
+    {
+    }
+
+    // disconnect from camera service
+    void disconnect()
+    {
+        LOGV("disconnect");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(DISCONNECT, data, &reply);
+    }
+
+    // pass the buffered ISurface to the camera service
+    status_t setPreviewDisplay(const sp<ISurface>& surface)
+    {
+        LOGV("setPreviewDisplay");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        data.writeStrongBinder(surface->asBinder());
+        remote()->transact(SET_PREVIEW_DISPLAY, data, &reply);
+        return reply.readInt32();
+    }
+
+    // set the preview callback flag to affect how the received frames from
+    // preview are handled. See Camera.h for details.
+    void setPreviewCallbackFlag(int flag)
+    {
+        LOGV("setPreviewCallbackFlag(%d)", flag);
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        data.writeInt32(flag);
+        remote()->transact(SET_PREVIEW_CALLBACK_FLAG, data, &reply);
+    }
+
+    // start preview mode, must call setPreviewDisplay first
+    status_t startPreview()
+    {
+        LOGV("startPreview");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(START_PREVIEW, data, &reply);
+        return reply.readInt32();
+    }
+
+    // start recording mode, must call setPreviewDisplay first
+    status_t startRecording()
+    {
+        LOGV("startRecording");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(START_RECORDING, data, &reply);
+        return reply.readInt32();
+    }
+
+    // stop preview mode
+    void stopPreview()
+    {
+        LOGV("stopPreview");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(STOP_PREVIEW, data, &reply);
+    }
+
+    // stop recording mode
+    void stopRecording()
+    {
+        LOGV("stopRecording");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(STOP_RECORDING, data, &reply);
+    }
+
+    void releaseRecordingFrame(const sp<IMemory>& mem)
+    {
+        LOGV("releaseRecordingFrame");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        data.writeStrongBinder(mem->asBinder());
+        remote()->transact(RELEASE_RECORDING_FRAME, data, &reply);
+    }
+
+    // check preview state
+    bool previewEnabled()
+    {
+        LOGV("previewEnabled");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(PREVIEW_ENABLED, data, &reply);
+        return reply.readInt32();
+    }
+
+    // check recording state
+    bool recordingEnabled()
+    {
+        LOGV("recordingEnabled");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(RECORDING_ENABLED, data, &reply);
+        return reply.readInt32();
+    }
+
+    // auto focus
+    status_t autoFocus()
+    {
+        LOGV("autoFocus");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(AUTO_FOCUS, data, &reply);
+        status_t ret = reply.readInt32();
+        return ret;
+    }
+
+    // cancel focus
+    status_t cancelAutoFocus()
+    {
+        LOGV("cancelAutoFocus");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(CANCEL_AUTO_FOCUS, data, &reply);
+        status_t ret = reply.readInt32();
+        return ret;
+    }
+
+    // take a picture - returns an IMemory (ref-counted mmap)
+    status_t takePicture()
+    {
+        LOGV("takePicture");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(TAKE_PICTURE, data, &reply);
+        status_t ret = reply.readInt32();
+        return ret;
+    }
+
+    // set preview/capture parameters - key/value pairs
+    status_t setParameters(const String8& params)
+    {
+        LOGV("setParameters");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        data.writeString8(params);
+        remote()->transact(SET_PARAMETERS, data, &reply);
+        return reply.readInt32();
+    }
+
+    // get preview/capture parameters - key/value pairs
+    String8 getParameters() const
+    {
+        LOGV("getParameters");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(GET_PARAMETERS, data, &reply);
+        return reply.readString8();
+    }
+    virtual status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2)
+    {
+        LOGD("sendCommand");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        data.writeInt32(cmd);
+        data.writeInt32(arg1);
+        data.writeInt32(arg2);
+        remote()->transact(SEND_COMMAND, data, &reply);
+        return reply.readInt32();
+    }
+    virtual status_t connect(const sp<ICameraClient>& cameraClient)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        data.writeStrongBinder(cameraClient->asBinder());
+        remote()->transact(CONNECT, data, &reply);
+        return reply.readInt32();
+    }
+    virtual status_t lock()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(LOCK, data, &reply);
+        return reply.readInt32();
+    }
+    virtual status_t unlock()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(UNLOCK, data, &reply);
+        return reply.readInt32();
+    }
+};
+
+IMPLEMENT_META_INTERFACE(Camera, "android.hardware.ICamera");
+
+// ----------------------------------------------------------------------
+
+status_t BnCamera::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch(code) {
+        case DISCONNECT: {
+            LOGV("DISCONNECT");
+            CHECK_INTERFACE(ICamera, data, reply);
+            disconnect();
+            return NO_ERROR;
+        } break;
+        case SET_PREVIEW_DISPLAY: {
+            LOGV("SET_PREVIEW_DISPLAY");
+            CHECK_INTERFACE(ICamera, data, reply);
+            sp<ISurface> surface = interface_cast<ISurface>(data.readStrongBinder());
+            reply->writeInt32(setPreviewDisplay(surface));
+            return NO_ERROR;
+        } break;
+        case SET_PREVIEW_CALLBACK_FLAG: {
+            LOGV("SET_PREVIEW_CALLBACK_TYPE");
+            CHECK_INTERFACE(ICamera, data, reply);
+            int callback_flag = data.readInt32();
+            setPreviewCallbackFlag(callback_flag);
+            return NO_ERROR;
+        } break;
+        case START_PREVIEW: {
+            LOGV("START_PREVIEW");
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(startPreview());
+            return NO_ERROR;
+        } break;
+        case START_RECORDING: {
+            LOGV("START_RECORDING");
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(startRecording());
+            return NO_ERROR;
+        } break;
+        case STOP_PREVIEW: {
+            LOGV("STOP_PREVIEW");
+            CHECK_INTERFACE(ICamera, data, reply);
+            stopPreview();
+            return NO_ERROR;
+        } break;
+        case STOP_RECORDING: {
+            LOGV("STOP_RECORDING");
+            CHECK_INTERFACE(ICamera, data, reply);
+            stopRecording();
+            return NO_ERROR;
+        } break;
+        case RELEASE_RECORDING_FRAME: {
+            LOGV("RELEASE_RECORDING_FRAME");
+            CHECK_INTERFACE(ICamera, data, reply);
+            sp<IMemory> mem = interface_cast<IMemory>(data.readStrongBinder());
+            releaseRecordingFrame(mem);
+            return NO_ERROR;
+        } break;
+        case PREVIEW_ENABLED: {
+            LOGV("PREVIEW_ENABLED");
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(previewEnabled());
+            return NO_ERROR;
+        } break;
+        case RECORDING_ENABLED: {
+            LOGV("RECORDING_ENABLED");
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(recordingEnabled());
+            return NO_ERROR;
+        } break;
+        case AUTO_FOCUS: {
+            LOGV("AUTO_FOCUS");
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(autoFocus());
+            return NO_ERROR;
+        } break;
+        case CANCEL_AUTO_FOCUS: {
+            LOGV("CANCEL_AUTO_FOCUS");
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(cancelAutoFocus());
+            return NO_ERROR;
+        } break;
+        case TAKE_PICTURE: {
+            LOGV("TAKE_PICTURE");
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(takePicture());
+            return NO_ERROR;
+        } break;
+        case SET_PARAMETERS: {
+            LOGV("SET_PARAMETERS");
+            CHECK_INTERFACE(ICamera, data, reply);
+            String8 params(data.readString8());
+            reply->writeInt32(setParameters(params));
+            return NO_ERROR;
+         } break;
+        case GET_PARAMETERS: {
+            LOGV("GET_PARAMETERS");
+            CHECK_INTERFACE(ICamera, data, reply);
+             reply->writeString8(getParameters());
+            return NO_ERROR;
+         } break;
+        case SEND_COMMAND: {
+            LOGV("SEND_COMMAND");
+            CHECK_INTERFACE(ICamera, data, reply);
+            int command = data.readInt32();
+            int arg1 = data.readInt32();
+            int arg2 = data.readInt32();
+            reply->writeInt32(sendCommand(command, arg1, arg2));
+            return NO_ERROR;
+         } break;
+        case CONNECT: {
+            CHECK_INTERFACE(ICamera, data, reply);
+            sp<ICameraClient> cameraClient = interface_cast<ICameraClient>(data.readStrongBinder());
+            reply->writeInt32(connect(cameraClient));
+            return NO_ERROR;
+        } break;
+        case LOCK: {
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(lock());
+            return NO_ERROR;
+        } break;
+        case UNLOCK: {
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(unlock());
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+