CANCEL_REQUEST,
REQUEST_STREAM,
CANCEL_STREAM,
+ CREATE_STREAM,
+ CREATE_DEFAULT_REQUEST,
};
+/**
+ * Caller becomes the owner of the new metadata
+ * 'const Parcel' doesnt prevent us from calling the read functions.
+ * which is interesting since it changes the internal state
+ */
+void readMetadata(const Parcel& data, camera_metadata_t** out) {
+ camera_metadata_t* metadata;
+
+ // arg0 = metadataSize (int32)
+ size_t metadataSize = static_cast<size_t>(data.readInt32());
+
+ if (metadataSize == 0) {
+ if (out) {
+ *out = NULL;
+ }
+ return;
+ }
+
+ // NOTE: this doesn't make sense to me. shouldnt the blob
+ // know how big it is? why do we have to specify the size
+ // to Parcel::readBlob ?
+
+ ReadableBlob blob;
+ // arg1 = metadata (blob)
+ {
+ data.readBlob(metadataSize, &blob);
+ const camera_metadata_t* tmp =
+ reinterpret_cast<const camera_metadata_t*>(blob.data());
+ size_t entry_capacity = get_camera_metadata_entry_capacity(tmp);
+ size_t data_capacity = get_camera_metadata_data_capacity(tmp);
+
+ metadata = allocate_camera_metadata(entry_capacity, data_capacity);
+ copy_camera_metadata(metadata, metadataSize, tmp);
+ }
+ blob.release();
+
+ if (out) {
+ *out = metadata;
+ } else {
+ free_camera_metadata(metadata);
+ }
+}
+
+/**
+ * Caller retains ownership of metadata
+ * - Write 2 (int32 + blob) args in the current position
+ */
+void writeMetadata(Parcel& data, camera_metadata_t* metadata) {
+ // arg0 = metadataSize (int32)
+ size_t metadataSize;
+
+ if (metadata == NULL) {
+ data.writeInt32(0);
+ return;
+ }
+
+ metadataSize = get_camera_metadata_compact_size(metadata);
+ data.writeInt32(static_cast<int32_t>(metadataSize));
+
+ // arg1 = metadata (blob)
+ WritableBlob blob;
+ {
+ data.writeBlob(metadataSize, &blob);
+ copy_camera_metadata(blob.data(), metadataSize, metadata);
+ }
+ blob.release();
+}
+
class BpProCameraUser: public BpInterface<IProCameraUser>
{
public:
Parcel data, reply;
data.writeInterfaceToken(IProCameraUser::getInterfaceDescriptor());
- // arg0 = metadataSize (int32)
- size_t metadataSize = get_camera_metadata_compact_size(metadata);
- data.writeInt32(static_cast<int32_t>(metadataSize));
-
- // arg1 = metadata (blob)
- WritableBlob blob;
- {
- data.writeBlob(metadataSize, &blob);
- copy_camera_metadata(blob.data(), metadataSize, metadata);
- }
- blob.release();
+ // arg0+arg1
+ writeMetadata(data, metadata);
// arg2 = streaming (bool)
data.writeInt32(streaming);
return reply.readInt32();
}
+ virtual status_t createStream(int width, int height, int format,
+ const sp<Surface>& surface,
+ /*out*/
+ int* streamId)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(IProCameraUser::getInterfaceDescriptor());
+ data.writeInt32(width);
+ data.writeInt32(height);
+ data.writeInt32(format);
+
+ Surface::writeToParcel(surface, &data);
+ remote()->transact(CREATE_STREAM, data, &reply);
+
+ int sId = reply.readInt32();
+ if (streamId) {
+ *streamId = sId;
+ }
+ return reply.readInt32();
+ }
+
+ // Create a request object from a template.
+ virtual status_t createDefaultRequest(int templateId,
+ /*out*/
+ camera_metadata** request)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(IProCameraUser::getInterfaceDescriptor());
+ data.writeInt32(templateId);
+ remote()->transact(CREATE_DEFAULT_REQUEST, data, &reply);
+ readMetadata(reply, /*out*/request);
+ return reply.readInt32();
+ }
+
+
+private:
+
+
};
IMPLEMENT_META_INTERFACE(ProCameraUser, "android.hardware.IProCameraUser");
case SUBMIT_REQUEST: {
CHECK_INTERFACE(IProCameraUser, data, reply);
camera_metadata_t* metadata;
-
- // arg0 = metadataSize (int32)
- size_t metadataSize = static_cast<size_t>(data.readInt32());
-
- // NOTE: this doesn't make sense to me. shouldnt the blob
- // know how big it is? why do we have to specify the size
- // to Parcel::readBlob ?
-
- ReadableBlob blob;
- // arg1 = metadata (blob)
- {
- data.readBlob(metadataSize, &blob);
- const camera_metadata_t* tmp =
- reinterpret_cast<const camera_metadata_t*>(blob.data());
- size_t entry_capacity = get_camera_metadata_entry_capacity(tmp);
- size_t data_capacity = get_camera_metadata_data_capacity(tmp);
-
- metadata = allocate_camera_metadata(entry_capacity,
- data_capacity);
- copy_camera_metadata(metadata, metadataSize, tmp);
- }
- blob.release();
+ readMetadata(data, /*out*/&metadata);
// arg2 = streaming (bool)
bool streaming = data.readInt32();
reply->writeInt32(cancelStream(streamId));
return NO_ERROR;
} break;
+ case CREATE_STREAM: {
+ CHECK_INTERFACE(IProCameraUser, data, reply);
+ int width, height, format;
+
+ width = data.readInt32();
+ height = data.readInt32();
+ format = data.readInt32();
+
+ sp<Surface> surface = Surface::readFromParcel(data);
+
+ int streamId = -1;
+ status_t ret;
+ ret = createStream(width, height, format, surface, &streamId);
+
+ reply->writeInt32(streamId);
+ reply->writeInt32(ret);
+
+ return NO_ERROR;
+ } break;
+
+ case CREATE_DEFAULT_REQUEST: {
+ CHECK_INTERFACE(IProCameraUser, data, reply);
+
+ int templateId = data.readInt32();
+
+ camera_metadata_t* request = NULL;
+ status_t ret;
+ ret = createDefaultRequest(templateId, &request);
+
+ writeMetadata(*reply, request);
+ reply->writeInt32(ret);
+
+ return NO_ERROR;
+ } break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
status_t ProCamera::createStream(int width, int height, int format,
- const sp<ANativeWindow>& window,
+ const sp<Surface>& surface,
/*out*/
int* streamId)
{
ALOGV("%s: createStreamW %dx%d (fmt=0x%x)", __FUNCTION__, width, height,
format);
- if (window == 0) {
+ if (surface == 0) {
return BAD_VALUE;
}
- // TODO: actually implement this in IProCamera
- return INVALID_OPERATION;
+ sp <IProCameraUser> c = mCamera;
+ if (c == 0) return NO_INIT;
+
+ return c->createStream(width, height, format, surface, streamId);
}
status_t ProCamera::createStream(int width, int height, int format,
format);
sp<IBinder> binder;
- sp<ANativeWindow> window;
+ status_t stat = INVALID_OPERATION;
if (bufferProducer != 0) {
binder = bufferProducer->asBinder();
- window = new Surface(bufferProducer);
-
- status_t stat = createStream(width, height, format, window, streamId);
ALOGV("%s: createStreamT END (%d), StreamID = %d", __FUNCTION__, stat,
*streamId);
return BAD_VALUE;
}
- return BAD_VALUE;
+ return stat;
}
int ProCamera::getNumberOfCameras() {
status_t ProCamera::createDefaultRequest(int templateId,
camera_metadata** request) const {
- ALOGE("%s: not implemented yet", __FUNCTION__);
-
ALOGV("%s: templateId = %d", __FUNCTION__, templateId);
- *request = NULL;
- return INVALID_OPERATION;
+ sp <IProCameraUser> c = mCamera;
+ if (c == 0) return NO_INIT;
+
+ return c->createDefaultRequest(templateId, request);
}
}; // namespace android
}
sp<Surface> surface;
- sp<ANativeWindow> window;
if (mDisplaySecs > 0) {
createOnScreenSurface(/*out*/surface);
- window = surface;
}
int streamId = -1;
EXPECT_OK(mCamera->createStream(/*width*/640, /*height*/480, TEST_FORMAT,
- window, &streamId));
+ surface, &streamId));
EXPECT_NE(-1, streamId);
EXPECT_OK(mCamera->exclusiveTryLock());
uint32_t tag = static_cast<uint32_t>(ANDROID_REQUEST_OUTPUT_STREAMS);
int find = find_camera_metadata_entry(request, tag, &entry);
if (find == -ENOENT) {
- ASSERT_OK(add_camera_metadata_entry(request, tag, &streamId,
- /*data_count*/1));
+ if (add_camera_metadata_entry(request, tag, &streamId, /*data_count*/1)
+ != OK) {
+ camera_metadata_t *tmp = allocate_camera_metadata(1000, 10000);
+ ASSERT_OK(append_camera_metadata(tmp, request));
+ free_camera_metadata(request);
+ request = tmp;
+
+ ASSERT_OK(add_camera_metadata_entry(request, tag, &streamId,
+ /*data_count*/1));
+ }
} else {
ASSERT_OK(update_camera_metadata_entry(request, entry.index, &streamId,
/*data_count*/1, &entry));
EXPECT_OK(mCamera->submitRequest(request, /*streaming*/true));
+ dout << "will sleep now for " << mDisplaySecs << std::endl;
sleep(mDisplaySecs);
- //should the window be empty until the buffer is flipped?
- // that would certainly make sense
-
free_camera_metadata(request);
EXPECT_OK(mCamera->cancelStream(streamId));
virtual status_t requestStream(int streamId) = 0;
virtual status_t cancelStream(int streamId) = 0;
+ virtual status_t createStream(int width, int height, int format,
+ const sp<Surface>& surface,
+ /*out*/
+ int* streamId) = 0;
+
+ // Create a request object from a template.
+ virtual status_t createDefaultRequest(int templateId,
+ /*out*/
+ camera_metadata** request)
+ = 0;
};
* Errors: -EBUSY if too many streams created
*/
status_t createStream(int width, int height, int format,
- const sp<ANativeWindow>& window,
+ const sp<Surface>& surface,
/*out*/
int* streamId);
CameraService.cpp \
CameraClient.cpp \
Camera2Client.cpp \
+ ProCamera2Client.cpp \
Camera2Device.cpp \
camera2/Parameters.cpp \
camera2/FrameProcessor.cpp \
#include "CameraService.h"
#include "CameraClient.h"
#include "Camera2Client.h"
+#include "ProCamera2Client.h"
namespace android {
return NULL;
break;
case CAMERA_DEVICE_API_VERSION_2_0:
- client = new ProClient(this, cameraCb, cameraId,
+ case CAMERA_DEVICE_API_VERSION_2_1:
+ client = new ProCamera2Client(this, cameraCb, cameraId,
facing, callingPid, getpid());
break;
case -1:
--- /dev/null
+/*
+ * Copyright (C) 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_TAG "ProCamera2Client"
+#define ATRACE_TAG ATRACE_TAG_CAMERA
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+#include <utils/Trace.h>
+
+#include <cutils/properties.h>
+#include <gui/Surface.h>
+#include <gui/Surface.h>
+#include "camera2/Parameters.h"
+#include "ProCamera2Client.h"
+
+namespace android {
+using namespace camera2;
+
+static int getCallingPid() {
+ return IPCThreadState::self()->getCallingPid();
+}
+
+static int getCallingUid() {
+ return IPCThreadState::self()->getCallingUid();
+}
+
+// Interface used by CameraService
+
+ProCamera2Client::ProCamera2Client(const sp<CameraService>& cameraService,
+ const sp<IProCameraCallbacks>& remoteCallback,
+ int cameraId,
+ int cameraFacing,
+ int clientPid,
+ int servicePid):
+ ProClient(cameraService, remoteCallback,
+ cameraId, cameraFacing, clientPid, servicePid),
+ mSharedCameraCallbacks(remoteCallback)
+{
+ ATRACE_CALL();
+ ALOGI("ProCamera %d: Opened", cameraId);
+
+ mDevice = new Camera2Device(cameraId);
+
+ mExclusiveLock = false;
+}
+
+status_t ProCamera2Client::checkPid(const char* checkLocation) const {
+ int callingPid = getCallingPid();
+ if (callingPid == mClientPid) return NO_ERROR;
+
+ ALOGE("%s: attempt to use a locked camera from a different process"
+ " (old pid %d, new pid %d)", checkLocation, mClientPid, callingPid);
+ return PERMISSION_DENIED;
+}
+
+status_t ProCamera2Client::initialize(camera_module_t *module)
+{
+ ATRACE_CALL();
+ ALOGV("%s: Initializing client for camera %d", __FUNCTION__, mCameraId);
+ status_t res;
+
+ res = mDevice->initialize(module);
+ if (res != OK) {
+ ALOGE("%s: Camera %d: unable to initialize device: %s (%d)",
+ __FUNCTION__, mCameraId, strerror(-res), res);
+ return NO_INIT;
+ }
+
+ res = mDevice->setNotifyCallback(this);
+
+ return OK;
+}
+
+ProCamera2Client::~ProCamera2Client() {
+ ATRACE_CALL();
+
+ mDestructionStarted = true;
+
+ disconnect();
+
+ ALOGI("ProCamera %d: Closed", mCameraId);
+}
+
+status_t ProCamera2Client::exclusiveTryLock() {
+ ATRACE_CALL();
+ ALOGV("%s", __FUNCTION__);
+
+ Mutex::Autolock icl(mIProCameraUserLock);
+ SharedCameraCallbacks::Lock l(mSharedCameraCallbacks);
+
+ if (!mExclusiveLock) {
+ mExclusiveLock = true;
+
+ if (mRemoteCallback != NULL) {
+ mRemoteCallback->onLockStatusChanged(
+ IProCameraCallbacks::LOCK_ACQUIRED);
+ }
+
+ ALOGV("%s: exclusive lock acquired", __FUNCTION__);
+
+ return OK;
+ }
+
+ // TODO: have a PERMISSION_DENIED case for when someone else owns the lock
+
+ // don't allow recursive locking
+ ALOGW("%s: exclusive lock already exists - recursive locking is not"
+ "allowed", __FUNCTION__);
+
+ return ALREADY_EXISTS;
+}
+
+status_t ProCamera2Client::exclusiveLock() {
+ ATRACE_CALL();
+ ALOGV("%s", __FUNCTION__);
+
+ Mutex::Autolock icl(mIProCameraUserLock);
+ SharedCameraCallbacks::Lock l(mSharedCameraCallbacks);
+
+ /**
+ * TODO: this should asynchronously 'wait' until the lock becomes available
+ * if another client already has an exclusive lock.
+ *
+ * once we have proper sharing support this will need to do
+ * more than just return immediately
+ */
+ if (!mExclusiveLock) {
+ mExclusiveLock = true;
+
+ if (mRemoteCallback != NULL) {
+ mRemoteCallback->onLockStatusChanged(IProCameraCallbacks::LOCK_ACQUIRED);
+ }
+
+ ALOGV("%s: exclusive lock acquired", __FUNCTION__);
+
+ return OK;
+ }
+
+ // don't allow recursive locking
+ ALOGW("%s: exclusive lock already exists - recursive locking is not allowed"
+ , __FUNCTION__);
+ return ALREADY_EXISTS;
+}
+
+status_t ProCamera2Client::exclusiveUnlock() {
+ ATRACE_CALL();
+ ALOGV("%s", __FUNCTION__);
+
+ Mutex::Autolock icl(mIProCameraUserLock);
+ SharedCameraCallbacks::Lock l(mSharedCameraCallbacks);
+
+ // don't allow unlocking if we have no lock
+ if (!mExclusiveLock) {
+ ALOGW("%s: cannot unlock, no lock was held in the first place",
+ __FUNCTION__);
+ return BAD_VALUE;
+ }
+
+ mExclusiveLock = false;
+ if (mRemoteCallback != NULL ) {
+ mRemoteCallback->onLockStatusChanged(
+ IProCameraCallbacks::LOCK_RELEASED);
+ }
+ ALOGV("%s: exclusive lock released", __FUNCTION__);
+
+ return OK;
+}
+
+bool ProCamera2Client::hasExclusiveLock() {
+ return mExclusiveLock;
+}
+
+status_t ProCamera2Client::submitRequest(camera_metadata_t* request,
+ bool streaming) {
+ ATRACE_CALL();
+ ALOGV("%s", __FUNCTION__);
+
+ Mutex::Autolock icl(mIProCameraUserLock);
+ if (!mExclusiveLock) {
+ return PERMISSION_DENIED;
+ }
+
+ ALOGE("%s: not fully implemented yet", __FUNCTION__);
+ free_camera_metadata(request);
+ return OK;
+}
+
+status_t ProCamera2Client::cancelRequest(int requestId) {
+ ATRACE_CALL();
+ ALOGV("%s", __FUNCTION__);
+
+ Mutex::Autolock icl(mIProCameraUserLock);
+ if (!mExclusiveLock) {
+ return PERMISSION_DENIED;
+ }
+
+ ALOGE("%s: not fully implemented yet", __FUNCTION__);
+ return OK;
+}
+
+status_t ProCamera2Client::requestStream(int streamId) {
+ ALOGE("%s: not implemented yet", __FUNCTION__);
+
+ return INVALID_OPERATION;
+}
+
+status_t ProCamera2Client::cancelStream(int streamId) {
+ ALOGE("%s: not implemented yet", __FUNCTION__);
+
+ return INVALID_OPERATION;
+}
+
+status_t ProCamera2Client::createStream(int width, int height, int format,
+ const sp<Surface>& surface,
+ /*out*/
+ int* streamId) {
+ ALOGE("%s: not implemented yet", __FUNCTION__);
+
+ return INVALID_OPERATION;
+}
+
+status_t ProCamera2Client::createDefaultRequest(int templateId,
+ /*out*/
+ camera_metadata** request) {
+ ALOGE("%s: not implemented yet", __FUNCTION__);
+
+ return INVALID_OPERATION;
+}
+
+
+
+
+
+status_t ProCamera2Client::dump(int fd, const Vector<String16>& args) {
+ String8 result;
+ result.appendFormat("ProCamera2Client[%d] (%p) PID: %d, dump:\n",
+ mCameraId,
+ getRemoteCallback()->asBinder().get(),
+ mClientPid);
+ result.append(" State: ");
+
+ // TODO: print dynamic/request section from most recent requests
+
+#define CASE_APPEND_ENUM(x) case x: result.append(#x "\n"); break;
+
+ result = " Device dump:\n";
+ write(fd, result.string(), result.size());
+
+ status_t res = mDevice->dump(fd, args);
+ if (res != OK) {
+ result = String8::format(" Error dumping device: %s (%d)",
+ strerror(-res), res);
+ write(fd, result.string(), result.size());
+ }
+
+#undef CASE_APPEND_ENUM
+ return NO_ERROR;
+}
+
+// IProCameraUser interface
+
+void ProCamera2Client::disconnect() {
+ ATRACE_CALL();
+ Mutex::Autolock icl(mIProCameraUserLock);
+ status_t res;
+
+ // Allow both client and the media server to disconnect at all times
+ int callingPid = getCallingPid();
+ if (callingPid != mClientPid && callingPid != mServicePid) return;
+
+ if (mDevice == 0) return;
+
+ ALOGV("Camera %d: Shutting down", mCameraId);
+ ALOGV("Camera %d: Waiting for threads", mCameraId);
+ ALOGV("Camera %d: Disconnecting device", mCameraId);
+
+ mDevice->disconnect();
+
+ mDevice.clear();
+
+ ProClient::disconnect();
+}
+
+status_t ProCamera2Client::connect(const sp<IProCameraCallbacks>& client) {
+ ATRACE_CALL();
+ ALOGV("%s: E", __FUNCTION__);
+ Mutex::Autolock icl(mIProCameraUserLock);
+
+ if (mClientPid != 0 && getCallingPid() != mClientPid) {
+ ALOGE("%s: Camera %d: Connection attempt from pid %d; "
+ "current locked to pid %d", __FUNCTION__,
+ mCameraId, getCallingPid(), mClientPid);
+ return BAD_VALUE;
+ }
+
+ mClientPid = getCallingPid();
+
+ mRemoteCallback = client;
+ mSharedCameraCallbacks = client;
+
+ return OK;
+}
+
+/** Device-related methods */
+
+void ProCamera2Client::notifyError(int errorCode, int arg1, int arg2) {
+ ALOGE("Error condition %d reported by HAL, arguments %d, %d", errorCode,
+ arg1, arg2);
+}
+
+void ProCamera2Client::notifyShutter(int frameNumber, nsecs_t timestamp) {
+ ALOGV("%s: Shutter notification for frame %d at time %lld", __FUNCTION__,
+ frameNumber, timestamp);
+}
+
+void ProCamera2Client::notifyAutoFocus(uint8_t newState, int triggerId) {
+ ALOGV("%s: Autofocus state now %d, last trigger %d",
+ __FUNCTION__, newState, triggerId);
+
+ SharedCameraCallbacks::Lock l(mSharedCameraCallbacks);
+ if (l.mRemoteCallback != 0) {
+ l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS_MOVE,
+ 1, 0);
+ }
+ if (l.mRemoteCallback != 0) {
+ l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS,
+ 1, 0);
+ }
+}
+
+void ProCamera2Client::notifyAutoExposure(uint8_t newState, int triggerId) {
+ ALOGV("%s: Autoexposure state now %d, last trigger %d",
+ __FUNCTION__, newState, triggerId);
+}
+
+void ProCamera2Client::notifyAutoWhitebalance(uint8_t newState, int triggerId) {
+ ALOGV("%s: Auto-whitebalance state now %d, last trigger %d",
+ __FUNCTION__, newState, triggerId);
+}
+
+int ProCamera2Client::getCameraId() const {
+ return mCameraId;
+}
+
+const sp<Camera2Device>& ProCamera2Client::getCameraDevice() {
+ return mDevice;
+}
+
+const sp<CameraService>& ProCamera2Client::getCameraService() {
+ return mCameraService;
+}
+
+ProCamera2Client::SharedCameraCallbacks::Lock::Lock(
+ SharedCameraCallbacks &client):
+ mRemoteCallback(client.mRemoteCallback),
+ mSharedClient(client) {
+ mSharedClient.mRemoteCallbackLock.lock();
+}
+
+ProCamera2Client::SharedCameraCallbacks::Lock::~Lock() {
+ mSharedClient.mRemoteCallbackLock.unlock();
+}
+
+ProCamera2Client::SharedCameraCallbacks::SharedCameraCallbacks
+ (const sp<IProCameraCallbacks>&client):
+ mRemoteCallback(client) {
+}
+
+ProCamera2Client::SharedCameraCallbacks&
+ ProCamera2Client::SharedCameraCallbacks::operator=(
+ const sp<IProCameraCallbacks>&client) {
+ Mutex::Autolock l(mRemoteCallbackLock);
+ mRemoteCallback = client;
+ return *this;
+}
+
+void ProCamera2Client::SharedCameraCallbacks::clear() {
+ Mutex::Autolock l(mRemoteCallbackLock);
+ mRemoteCallback.clear();
+}
+
+} // namespace android
--- /dev/null
+/*
+ * Copyright (C) 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.
+ */
+
+#ifndef ANDROID_SERVERS_CAMERA_PROCAMERA2CLIENT_H
+#define ANDROID_SERVERS_CAMERA_PROCAMERA2CLIENT_H
+
+#include "Camera2Device.h"
+#include "CameraService.h"
+
+namespace android {
+
+class IMemory;
+/**
+ * Implements the binder IProCameraUser API,
+ * meant for HAL2-level private API access.
+ */
+class ProCamera2Client :
+ public CameraService::ProClient,
+ public Camera2Device::NotificationListener
+{
+public:
+ /**
+ * IProCameraUser interface (see IProCameraUser for details)
+ */
+ virtual status_t connect(const sp<IProCameraCallbacks>& callbacks);
+ virtual void disconnect();
+
+ virtual status_t exclusiveTryLock();
+ virtual status_t exclusiveLock();
+ virtual status_t exclusiveUnlock();
+
+ virtual bool hasExclusiveLock();
+
+ // Note that the callee gets a copy of the metadata.
+ virtual int submitRequest(camera_metadata_t* metadata,
+ bool streaming = false);
+ virtual status_t cancelRequest(int requestId);
+
+ virtual status_t requestStream(int streamId);
+ virtual status_t cancelStream(int streamId);
+
+ virtual status_t createStream(int width, int height, int format,
+ const sp<Surface>& surface,
+ /*out*/
+ int* streamId);
+
+ // Create a request object from a template.
+ virtual status_t createDefaultRequest(int templateId,
+ /*out*/
+ camera_metadata** request);
+
+
+ /**
+ * Interface used by CameraService
+ */
+
+ ProCamera2Client(const sp<CameraService>& cameraService,
+ const sp<IProCameraCallbacks>& remoteCallback,
+ int cameraId,
+ int cameraFacing,
+ int clientPid,
+ int servicePid);
+ virtual ~ProCamera2Client();
+
+ status_t initialize(camera_module_t *module);
+
+ virtual status_t dump(int fd, const Vector<String16>& args);
+
+ /**
+ * Interface used by Camera2Device
+ */
+
+ virtual void notifyError(int errorCode, int arg1, int arg2);
+ virtual void notifyShutter(int frameNumber, nsecs_t timestamp);
+ virtual void notifyAutoFocus(uint8_t newState, int triggerId);
+ virtual void notifyAutoExposure(uint8_t newState, int triggerId);
+ virtual void notifyAutoWhitebalance(uint8_t newState, int triggerId);
+
+
+ int getCameraId() const;
+ const sp<Camera2Device>& getCameraDevice();
+ const sp<CameraService>& getCameraService();
+
+ /**
+ * Interface used by independent components of ProCamera2Client.
+ */
+
+ // Simple class to ensure that access to IProCameraCallbacks is serialized
+ // by requiring mRemoteCallbackLock to be locked before access to
+ // mCameraClient is possible.
+ class SharedCameraCallbacks {
+ public:
+ class Lock {
+ public:
+ Lock(SharedCameraCallbacks &client);
+ ~Lock();
+ sp<IProCameraCallbacks> &mRemoteCallback;
+ private:
+ SharedCameraCallbacks &mSharedClient;
+ };
+ SharedCameraCallbacks(const sp<IProCameraCallbacks>& client);
+ SharedCameraCallbacks& operator=(const sp<IProCameraCallbacks>& client);
+ void clear();
+ private:
+ sp<IProCameraCallbacks> mRemoteCallback;
+ mutable Mutex mRemoteCallbackLock;
+ } mSharedCameraCallbacks;
+
+private:
+ /** IProCameraUser interface-related private members */
+
+ // Mutex that must be locked by methods implementing the IProCameraUser
+ // interface. Ensures serialization between incoming IProCameraUser calls.
+ // All methods below that append 'L' to the name assume that
+ // mIProCameraUserLock is locked when they're called
+ mutable Mutex mIProCameraUserLock;
+
+ // Used with stream IDs
+ static const int NO_STREAM = -1;
+
+ /* Preview/Recording related members */
+
+ sp<IBinder> mPreviewSurface;
+
+ /** Preview callback related members */
+ /** Camera2Device instance wrapping HAL2 entry */
+
+ sp<Camera2Device> mDevice;
+
+ /** Utility members */
+
+ // Verify that caller is the owner of the camera
+ status_t checkPid(const char *checkLocation) const;
+
+ // Whether or not we have an exclusive lock on the device
+ // - if no we can't modify the request queue.
+ // note that creating/deleting streams we own is still OK
+ bool mExclusiveLock;
+};
+
+}; // namespace android
+
+#endif
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