/* ** ** 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 { CAMERA_ERROR = IBinder::FIRST_CALL_TRANSACTION, CAMERA_IDLE, CAPTURE_STARTED, RESULT_RECEIVED, }; class BpCameraDeviceCallbacks: public BpInterface<ICameraDeviceCallbacks> { public: BpCameraDeviceCallbacks(const sp<IBinder>& impl) : BpInterface<ICameraDeviceCallbacks>(impl) { } void onDeviceError(CameraErrorCode errorCode) { ALOGV("onDeviceError"); Parcel data, reply; data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor()); data.writeInt32(static_cast<int32_t>(errorCode)); remote()->transact(CAMERA_ERROR, data, &reply, IBinder::FLAG_ONEWAY); data.writeNoException(); } void onDeviceIdle() { ALOGV("onDeviceIdle"); Parcel data, reply; data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor()); remote()->transact(CAMERA_IDLE, data, &reply, IBinder::FLAG_ONEWAY); data.writeNoException(); } void onCaptureStarted(int32_t requestId, int64_t timestamp) { ALOGV("onCaptureStarted"); Parcel data, reply; data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor()); data.writeInt32(requestId); data.writeInt64(timestamp); remote()->transact(CAPTURE_STARTED, data, &reply, IBinder::FLAG_ONEWAY); data.writeNoException(); } void onResultReceived(int32_t requestId, const CameraMetadata& result) { ALOGV("onResultReceived"); Parcel data, reply; data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor()); data.writeInt32(requestId); data.writeInt32(1); // to mark presence of metadata object 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 CAMERA_ERROR: { ALOGV("onDeviceError"); CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply); CameraErrorCode errorCode = static_cast<CameraErrorCode>(data.readInt32()); onDeviceError(errorCode); data.readExceptionCode(); return NO_ERROR; } break; case CAMERA_IDLE: { ALOGV("onDeviceIdle"); CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply); onDeviceIdle(); data.readExceptionCode(); return NO_ERROR; } break; case CAPTURE_STARTED: { ALOGV("onCaptureStarted"); CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply); int32_t requestId = data.readInt32(); int64_t timestamp = data.readInt64(); onCaptureStarted(requestId, timestamp); data.readExceptionCode(); return NO_ERROR; } break; case RESULT_RECEIVED: { ALOGV("onResultReceived"); CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply); int32_t requestId = data.readInt32(); CameraMetadata result; if (data.readInt32() != 0) { result.readFromParcel(const_cast<Parcel*>(&data)); } else { ALOGW("No metadata object is present in result"); } onResultReceived(requestId, result); data.readExceptionCode(); return NO_ERROR; } break; default: return BBinder::onTransact(code, data, reply, flags); } } // ---------------------------------------------------------------------------- }; // namespace android