Camera: Rename new API to camera2, rearrange camera service

 - Support API rename from photography to camera2
 - Reorganize camera service files
   - API support files to api1/, api2/, api_pro/
   - HAL device support files into device{1,2,3}/
   - Common files into common/
   - Camera service remains at top-level

Change-Id: Ie474c12536f543832fba0a2dc936ac4fd39fe6a9

3 files changed, 555 insertions, 0 deletions

diff --git a/camera/camera2/CaptureRequest.cpp b/camera/camera2/CaptureRequest.cpp
new file mode 100644
index 0000000..57e5319
--- /dev/null
+++ b/camera/camera2/CaptureRequest.cpp
@@ -0,0 +1,124 @@
+/*
+**
+** Copyright 2013, 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 "CameraRequest"
+#include <utils/Log.h>
+
+#include <camera/camera2/CaptureRequest.h>
+
+#include <binder/Parcel.h>
+#include <gui/Surface.h>
+
+namespace android {
+
+status_t CaptureRequest::readFromParcel(Parcel* parcel) {
+    if (parcel == NULL) {
+        ALOGE("%s: Null parcel", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    mMetadata.clear();
+    mSurfaceList.clear();
+
+    status_t err;
+
+    if ((err = mMetadata.readFromParcel(parcel)) != OK) {
+        ALOGE("%s: Failed to read metadata from parcel", __FUNCTION__);
+        return err;
+    }
+    ALOGV("%s: Read metadata from parcel", __FUNCTION__);
+
+    int32_t size;
+    if ((err = parcel->readInt32(&size)) != OK) {
+        ALOGE("%s: Failed to read surface list size from parcel", __FUNCTION__);
+        return err;
+    }
+    ALOGV("%s: Read surface list size = %d", __FUNCTION__, size);
+
+    // Do not distinguish null arrays from 0-sized arrays.
+    for (int i = 0; i < size; ++i) {
+        // Parcel.writeParcelableArray
+        size_t len;
+        const char16_t* className = parcel->readString16Inplace(&len);
+        ALOGV("%s: Read surface class = %s", __FUNCTION__,
+              className != NULL ? String8(className).string() : "<null>");
+
+        if (className == NULL) {
+            continue;
+        }
+
+        // Surface.writeToParcel
+        String16 name = parcel->readString16();
+        ALOGV("%s: Read surface name = %s",
+              __FUNCTION__, String8(name).string());
+        sp<IBinder> binder(parcel->readStrongBinder());
+        ALOGV("%s: Read surface binder = %p",
+              __FUNCTION__, binder.get());
+
+        sp<Surface> surface;
+
+        if (binder != NULL) {
+            sp<IGraphicBufferProducer> gbp =
+                    interface_cast<IGraphicBufferProducer>(binder);
+            surface = new Surface(gbp);
+        }
+
+        mSurfaceList.push_back(surface);
+    }
+
+    return OK;
+}
+
+status_t CaptureRequest::writeToParcel(Parcel* parcel) const {
+    if (parcel == NULL) {
+        ALOGE("%s: Null parcel", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    status_t err;
+
+    if ((err = mMetadata.writeToParcel(parcel)) != OK) {
+        return err;
+    }
+
+    int32_t size = static_cast<int32_t>(mSurfaceList.size());
+
+    // Send 0-sized arrays when it's empty. Do not send null arrays.
+    parcel->writeInt32(size);
+
+    for (int32_t i = 0; i < size; ++i) {
+        sp<Surface> surface = mSurfaceList[i];
+
+        sp<IBinder> binder;
+        if (surface != 0) {
+            binder = surface->getIGraphicBufferProducer()->asBinder();
+        }
+
+        // not sure if readParcelableArray does this, hard to tell from source
+        parcel->writeString16(String16("android.view.Surface"));
+
+        // Surface.writeToParcel
+        parcel->writeString16(String16("unknown_name"));
+        // Surface.nativeWriteToParcel
+        parcel->writeStrongBinder(binder);
+    }
+
+    return OK;
+}
+
+}; // namespace android
diff --git a/camera/camera2/ICameraDeviceCallbacks.cpp b/camera/camera2/ICameraDeviceCallbacks.cpp
new file mode 100644
index 0000000..188bd8e
--- /dev/null
+++ b/camera/camera2/ICameraDeviceCallbacks.cpp
@@ -0,0 +1,109 @@
+/*
+**
+** Copyright 2013, 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 "ICameraDeviceCallbacks"
+#include <utils/Log.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/Surface.h>
+#include <utils/Mutex.h>
+
+#include <camera/camera2/ICameraDeviceCallbacks.h>
+#include "camera/CameraMetadata.h"
+
+namespace android {
+
+enum {
+    NOTIFY_CALLBACK = IBinder::FIRST_CALL_TRANSACTION,
+    RESULT_RECEIVED,
+};
+
+class BpCameraDeviceCallbacks: public BpInterface<ICameraDeviceCallbacks>
+{
+public:
+    BpCameraDeviceCallbacks(const sp<IBinder>& impl)
+        : BpInterface<ICameraDeviceCallbacks>(impl)
+    {
+    }
+
+    // generic callback from camera service to app
+    void notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2)
+    {
+        ALOGV("notifyCallback");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor());
+        data.writeInt32(msgType);
+        data.writeInt32(ext1);
+        data.writeInt32(ext2);
+        remote()->transact(NOTIFY_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
+        data.writeNoException();
+    }
+
+    void onResultReceived(int32_t frameId, const CameraMetadata& result) {
+        ALOGV("onResultReceived");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor());
+        data.writeInt32(frameId);
+        result.writeToParcel(&data);
+        remote()->transact(RESULT_RECEIVED, data, &reply, IBinder::FLAG_ONEWAY);
+        data.writeNoException();
+    }
+};
+
+IMPLEMENT_META_INTERFACE(CameraDeviceCallbacks,
+                         "android.hardware.camera2.ICameraDeviceCallbacks");
+
+// ----------------------------------------------------------------------
+
+status_t BnCameraDeviceCallbacks::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    ALOGV("onTransact - code = %d", code);
+    switch(code) {
+        case NOTIFY_CALLBACK: {
+            ALOGV("NOTIFY_CALLBACK");
+            CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
+            int32_t msgType = data.readInt32();
+            int32_t ext1 = data.readInt32();
+            int32_t ext2 = data.readInt32();
+            notifyCallback(msgType, ext1, ext2);
+            data.readExceptionCode();
+            return NO_ERROR;
+        } break;
+        case RESULT_RECEIVED: {
+            ALOGV("RESULT_RECEIVED");
+            CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
+            int32_t frameId = data.readInt32();
+            CameraMetadata result;
+            result.readFromParcel(const_cast<Parcel*>(&data));
+            onResultReceived(frameId, result);
+            data.readExceptionCode();
+            return NO_ERROR;
+            break;
+        }
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
diff --git a/camera/camera2/ICameraDeviceUser.cpp b/camera/camera2/ICameraDeviceUser.cpp
new file mode 100644
index 0000000..923f487
--- /dev/null
+++ b/camera/camera2/ICameraDeviceUser.cpp
@@ -0,0 +1,322 @@
+/*
+**
+** Copyright 2013, 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 "ICameraDeviceUser"
+#include <utils/Log.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <binder/Parcel.h>
+#include <camera/camera2/ICameraDeviceUser.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/Surface.h>
+#include <camera/CameraMetadata.h>
+#include <camera/camera2/CaptureRequest.h>
+
+namespace android {
+
+typedef Parcel::WritableBlob WritableBlob;
+typedef Parcel::ReadableBlob ReadableBlob;
+
+enum {
+    DISCONNECT = IBinder::FIRST_CALL_TRANSACTION,
+    SUBMIT_REQUEST,
+    CANCEL_REQUEST,
+    DELETE_STREAM,
+    CREATE_STREAM,
+    CREATE_DEFAULT_REQUEST,
+    GET_CAMERA_INFO,
+    WAIT_UNTIL_IDLE,
+};
+
+class BpCameraDeviceUser : public BpInterface<ICameraDeviceUser>
+{
+public:
+    BpCameraDeviceUser(const sp<IBinder>& impl)
+        : BpInterface<ICameraDeviceUser>(impl)
+    {
+    }
+
+    // disconnect from camera service
+    void disconnect()
+    {
+        ALOGV("disconnect");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
+        remote()->transact(DISCONNECT, data, &reply);
+        reply.readExceptionCode();
+    }
+
+    virtual int submitRequest(sp<CaptureRequest> request, bool streaming)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
+
+        // arg0 = CaptureRequest
+        if (request != 0) {
+            data.writeInt32(1);
+            request->writeToParcel(&data);
+        } else {
+            data.writeInt32(0);
+        }
+
+        // arg1 = streaming (bool)
+        data.writeInt32(streaming);
+
+        remote()->transact(SUBMIT_REQUEST, data, &reply);
+
+        reply.readExceptionCode();
+        return reply.readInt32();
+    }
+
+    virtual status_t cancelRequest(int requestId)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
+        data.writeInt32(requestId);
+
+        remote()->transact(CANCEL_REQUEST, data, &reply);
+
+        reply.readExceptionCode();
+        return reply.readInt32();
+    }
+
+    virtual status_t deleteStream(int streamId)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
+        data.writeInt32(streamId);
+
+        remote()->transact(DELETE_STREAM, data, &reply);
+
+        reply.readExceptionCode();
+        return reply.readInt32();
+    }
+
+    virtual status_t createStream(int width, int height, int format,
+                          const sp<IGraphicBufferProducer>& bufferProducer)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
+        data.writeInt32(width);
+        data.writeInt32(height);
+        data.writeInt32(format);
+
+        data.writeInt32(1); // marker that bufferProducer is not null
+        data.writeString16(String16("unknown_name")); // name of surface
+        sp<IBinder> b(bufferProducer->asBinder());
+        data.writeStrongBinder(b);
+
+        remote()->transact(CREATE_STREAM, data, &reply);
+
+        reply.readExceptionCode();
+        return reply.readInt32();
+    }
+
+    // Create a request object from a template.
+    virtual status_t createDefaultRequest(int templateId,
+                                          /*out*/
+                                          CameraMetadata* request)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
+        data.writeInt32(templateId);
+        remote()->transact(CREATE_DEFAULT_REQUEST, data, &reply);
+
+        reply.readExceptionCode();
+        status_t result = reply.readInt32();
+
+        CameraMetadata out;
+        if (reply.readInt32() != 0) {
+            out.readFromParcel(&reply);
+        }
+
+        if (request != NULL) {
+            request->swap(out);
+        }
+        return result;
+    }
+
+
+    virtual status_t getCameraInfo(CameraMetadata* info)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
+        remote()->transact(GET_CAMERA_INFO, data, &reply);
+
+        reply.readExceptionCode();
+        status_t result = reply.readInt32();
+
+        CameraMetadata out;
+        if (reply.readInt32() != 0) {
+            out.readFromParcel(&reply);
+        }
+
+        if (info != NULL) {
+            info->swap(out);
+        }
+
+        return result;
+    }
+
+    virtual status_t waitUntilIdle()
+    {
+        ALOGV("waitUntilIdle");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
+        remote()->transact(WAIT_UNTIL_IDLE, data, &reply);
+        reply.readExceptionCode();
+        return reply.readInt32();
+    }
+
+private:
+
+
+};
+
+IMPLEMENT_META_INTERFACE(CameraDeviceUser,
+                         "android.hardware.camera2.ICameraDeviceUser");
+
+// ----------------------------------------------------------------------
+
+status_t BnCameraDeviceUser::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch(code) {
+        case DISCONNECT: {
+            ALOGV("DISCONNECT");
+            CHECK_INTERFACE(ICameraDeviceUser, data, reply);
+            disconnect();
+            reply->writeNoException();
+            return NO_ERROR;
+        } break;
+        case SUBMIT_REQUEST: {
+            CHECK_INTERFACE(ICameraDeviceUser, data, reply);
+
+            // arg0 = request
+            sp<CaptureRequest> request;
+            if (data.readInt32() != 0) {
+                request = new CaptureRequest();
+                request->readFromParcel(const_cast<Parcel*>(&data));
+            }
+
+            // arg1 = streaming (bool)
+            bool streaming = data.readInt32();
+
+            // return code: requestId (int32)
+            reply->writeNoException();
+            reply->writeInt32(submitRequest(request, streaming));
+
+            return NO_ERROR;
+        } break;
+        case CANCEL_REQUEST: {
+            CHECK_INTERFACE(ICameraDeviceUser, data, reply);
+            int requestId = data.readInt32();
+            reply->writeNoException();
+            reply->writeInt32(cancelRequest(requestId));
+            return NO_ERROR;
+        } break;
+        case DELETE_STREAM: {
+            CHECK_INTERFACE(ICameraDeviceUser, data, reply);
+            int streamId = data.readInt32();
+            reply->writeNoException();
+            reply->writeInt32(deleteStream(streamId));
+            return NO_ERROR;
+        } break;
+        case CREATE_STREAM: {
+            CHECK_INTERFACE(ICameraDeviceUser, data, reply);
+            int width, height, format;
+
+            width = data.readInt32();
+            ALOGV("%s: CREATE_STREAM: width = %d", __FUNCTION__, width);
+            height = data.readInt32();
+            ALOGV("%s: CREATE_STREAM: height = %d", __FUNCTION__, height);
+            format = data.readInt32();
+            ALOGV("%s: CREATE_STREAM: format = %d", __FUNCTION__, format);
+
+            sp<IGraphicBufferProducer> bp;
+            if (data.readInt32() != 0) {
+                String16 name = data.readString16();
+                bp = interface_cast<IGraphicBufferProducer>(
+                        data.readStrongBinder());
+
+                ALOGV("%s: CREATE_STREAM: bp = %p, name = %s", __FUNCTION__,
+                      bp.get(), String8(name).string());
+            } else {
+                ALOGV("%s: CREATE_STREAM: bp = unset, name = unset",
+                      __FUNCTION__);
+            }
+
+            status_t ret;
+            ret = createStream(width, height, format, bp);
+
+            reply->writeNoException();
+            ALOGV("%s: CREATE_STREAM: write noException", __FUNCTION__);
+            reply->writeInt32(ret);
+            ALOGV("%s: CREATE_STREAM: write ret = %d", __FUNCTION__, ret);
+
+            return NO_ERROR;
+        } break;
+
+        case CREATE_DEFAULT_REQUEST: {
+            CHECK_INTERFACE(ICameraDeviceUser, data, reply);
+
+            int templateId = data.readInt32();
+
+            CameraMetadata request;
+            status_t ret;
+            ret = createDefaultRequest(templateId, &request);
+
+            reply->writeNoException();
+            reply->writeInt32(ret);
+
+            // out-variables are after exception and return value
+            reply->writeInt32(1); // to mark presence of metadata object
+            request.writeToParcel(const_cast<Parcel*>(reply));
+
+            return NO_ERROR;
+        } break;
+        case GET_CAMERA_INFO: {
+            CHECK_INTERFACE(ICameraDeviceUser, data, reply);
+
+            CameraMetadata info;
+            status_t ret;
+            ret = getCameraInfo(&info);
+
+            reply->writeNoException();
+            reply->writeInt32(ret);
+
+            // out-variables are after exception and return value
+            reply->writeInt32(1); // to mark presence of metadata object
+            info.writeToParcel(reply);
+
+            return NO_ERROR;
+        } break;
+        case WAIT_UNTIL_IDLE: {
+            CHECK_INTERFACE(ICameraDeviceUser, data, reply);
+            reply->writeNoException();
+            reply->writeInt32(waitUntilIdle());
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android