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LeafOS / LeafOS-Project / android_frameworks_av / 4fe86290794e593159c0798cb86efdf99df098d3 / . / services / camera / libcameraservice / device3 / Camera3Device.cpp
blob: 9a4e5acc0f66ab0950c05052b7b7155fd9be1926 [file] [log] [blame]
/*
* 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 "Camera3-Device"
#define ATRACE_TAG ATRACE_TAG_CAMERA
//#define LOG_NDEBUG 0
//#define LOG_NNDEBUG 0 // Per-frame verbose logging
#ifdef LOG_NNDEBUG
#define ALOGVV(...) ALOGV(__VA_ARGS__)
#else
#define ALOGVV(...) ((void)0)
#endif
// Convenience macro for transient errors
#define CLOGE(fmt, ...) ALOGE("Camera %d: %s: " fmt, mId, __FUNCTION__, \
##__VA_ARGS__)
// Convenience macros for transitioning to the error state
#define SET_ERR(fmt, ...) setErrorState( \
"%s: " fmt, __FUNCTION__, \
##__VA_ARGS__)
#define SET_ERR_L(fmt, ...) setErrorStateLocked( \
"%s: " fmt, __FUNCTION__, \
##__VA_ARGS__)
#include <inttypes.h>
#include <utils/Log.h>
#include <utils/Trace.h>
#include <utils/Timers.h>
#include "utils/CameraTraces.h"
#include "device3/Camera3Device.h"
#include "device3/Camera3OutputStream.h"
#include "device3/Camera3InputStream.h"
#include "device3/Camera3ZslStream.h"
#include "device3/Camera3DummyStream.h"
#include "CameraService.h"
using namespace android::camera3;
namespace android {
Camera3Device::Camera3Device(int id):
mId(id),
mHal3Device(NULL),
mStatus(STATUS_UNINITIALIZED),
mUsePartialResult(false),
mNumPartialResults(1),
mNextResultFrameNumber(0),
mNextShutterFrameNumber(0),
mListener(NULL)
{
ATRACE_CALL();
camera3_callback_ops::notify = &sNotify;
camera3_callback_ops::process_capture_result = &sProcessCaptureResult;
ALOGV("%s: Created device for camera %d", __FUNCTION__, id);
}
Camera3Device::~Camera3Device()
{
ATRACE_CALL();
ALOGV("%s: Tearing down for camera id %d", __FUNCTION__, mId);
disconnect();
}
int Camera3Device::getId() const {
return mId;
}
/**
* CameraDeviceBase interface
*/
status_t Camera3Device::initialize(CameraModule *module)
{
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
ALOGV("%s: Initializing device for camera %d", __FUNCTION__, mId);
if (mStatus != STATUS_UNINITIALIZED) {
CLOGE("Already initialized!");
return INVALID_OPERATION;
}
/** Open HAL device */
status_t res;
String8 deviceName = String8::format("%d", mId);
camera3_device_t *device;
ATRACE_BEGIN("camera3->open");
res = CameraService::filterOpenErrorCode(module->open(
deviceName.string(), reinterpret_cast<hw_device_t**>(&device)));
ATRACE_END();
if (res != OK) {
SET_ERR_L("Could not open camera: %s (%d)", strerror(-res), res);
return res;
}
/** Cross-check device version */
if (device->common.version < CAMERA_DEVICE_API_VERSION_3_0) {
SET_ERR_L("Could not open camera: "
"Camera device should be at least %x, reports %x instead",
CAMERA_DEVICE_API_VERSION_3_0,
device->common.version);
device->common.close(&device->common);
return BAD_VALUE;
}
camera_info info;
res = CameraService::filterGetInfoErrorCode(module->getCameraInfo(
mId, &info));
if (res != OK) return res;
if (info.device_version != device->common.version) {
SET_ERR_L("HAL reporting mismatched camera_info version (%x)"
" and device version (%x).",
info.device_version, device->common.version);
device->common.close(&device->common);
return BAD_VALUE;
}
/** Initialize device with callback functions */
ATRACE_BEGIN("camera3->initialize");
res = device->ops->initialize(device, this);
ATRACE_END();
if (res != OK) {
SET_ERR_L("Unable to initialize HAL device: %s (%d)",
strerror(-res), res);
device->common.close(&device->common);
return BAD_VALUE;
}
/** Start up status tracker thread */
mStatusTracker = new StatusTracker(this);
res = mStatusTracker->run(String8::format("C3Dev-%d-Status", mId).string());
if (res != OK) {
SET_ERR_L("Unable to start status tracking thread: %s (%d)",
strerror(-res), res);
device->common.close(&device->common);
mStatusTracker.clear();
return res;
}
/** Start up request queue thread */
mRequestThread = new RequestThread(this, mStatusTracker, device);
res = mRequestThread->run(String8::format("C3Dev-%d-ReqQueue", mId).string());
if (res != OK) {
SET_ERR_L("Unable to start request queue thread: %s (%d)",
strerror(-res), res);
device->common.close(&device->common);
mRequestThread.clear();
return res;
}
/** Everything is good to go */
mDeviceVersion = device->common.version;
mDeviceInfo = info.static_camera_characteristics;
mHal3Device = device;
mStatus = STATUS_UNCONFIGURED;
mNextStreamId = 0;
mDummyStreamId = NO_STREAM;
mNeedConfig = true;
mPauseStateNotify = false;
// Will the HAL be sending in early partial result metadata?
if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
camera_metadata_entry partialResultsCount =
mDeviceInfo.find(ANDROID_REQUEST_PARTIAL_RESULT_COUNT);
if (partialResultsCount.count > 0) {
mNumPartialResults = partialResultsCount.data.i32[0];
mUsePartialResult = (mNumPartialResults > 1);
}
} else {
camera_metadata_entry partialResultsQuirk =
mDeviceInfo.find(ANDROID_QUIRKS_USE_PARTIAL_RESULT);
if (partialResultsQuirk.count > 0 && partialResultsQuirk.data.u8[0] == 1) {
mUsePartialResult = true;
}
}
return OK;
}
status_t Camera3Device::disconnect() {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
ALOGV("%s: E", __FUNCTION__);
status_t res = OK;
{
Mutex::Autolock l(mLock);
if (mStatus == STATUS_UNINITIALIZED) return res;
if (mStatus == STATUS_ACTIVE ||
(mStatus == STATUS_ERROR && mRequestThread != NULL)) {
res = mRequestThread->clearRepeatingRequests();
if (res != OK) {
SET_ERR_L("Can't stop streaming");
// Continue to close device even in case of error
} else {
res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
if (res != OK) {
SET_ERR_L("Timeout waiting for HAL to drain");
// Continue to close device even in case of error
}
}
}
if (mStatus == STATUS_ERROR) {
CLOGE("Shutting down in an error state");
}
if (mStatusTracker != NULL) {
mStatusTracker->requestExit();
}
if (mRequestThread != NULL) {
mRequestThread->requestExit();
}
mOutputStreams.clear();
mInputStream.clear();
}
// Joining done without holding mLock, otherwise deadlocks may ensue
// as the threads try to access parent state
if (mRequestThread != NULL && mStatus != STATUS_ERROR) {
// HAL may be in a bad state, so waiting for request thread
// (which may be stuck in the HAL processCaptureRequest call)
// could be dangerous.
mRequestThread->join();
}
if (mStatusTracker != NULL) {
mStatusTracker->join();
}
{
Mutex::Autolock l(mLock);
mRequestThread.clear();
mStatusTracker.clear();
if (mHal3Device != NULL) {
ATRACE_BEGIN("camera3->close");
mHal3Device->common.close(&mHal3Device->common);
ATRACE_END();
mHal3Device = NULL;
}
mStatus = STATUS_UNINITIALIZED;
}
ALOGV("%s: X", __FUNCTION__);
return res;
}
// For dumping/debugging only -
// try to acquire a lock a few times, eventually give up to proceed with
// debug/dump operations
bool Camera3Device::tryLockSpinRightRound(Mutex& lock) {
bool gotLock = false;
for (size_t i = 0; i < kDumpLockAttempts; ++i) {
if (lock.tryLock() == NO_ERROR) {
gotLock = true;
break;
} else {
usleep(kDumpSleepDuration);
}
}
return gotLock;
}
Camera3Device::Size Camera3Device::getMaxJpegResolution() const {
int32_t maxJpegWidth = 0, maxJpegHeight = 0;
if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
const int STREAM_CONFIGURATION_SIZE = 4;
const int STREAM_FORMAT_OFFSET = 0;
const int STREAM_WIDTH_OFFSET = 1;
const int STREAM_HEIGHT_OFFSET = 2;
const int STREAM_IS_INPUT_OFFSET = 3;
camera_metadata_ro_entry_t availableStreamConfigs =
mDeviceInfo.find(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
if (availableStreamConfigs.count == 0 ||
availableStreamConfigs.count % STREAM_CONFIGURATION_SIZE != 0) {
return Size(0, 0);
}
// Get max jpeg size (area-wise).
for (size_t i=0; i < availableStreamConfigs.count; i+= STREAM_CONFIGURATION_SIZE) {
int32_t format = availableStreamConfigs.data.i32[i + STREAM_FORMAT_OFFSET];
int32_t width = availableStreamConfigs.data.i32[i + STREAM_WIDTH_OFFSET];
int32_t height = availableStreamConfigs.data.i32[i + STREAM_HEIGHT_OFFSET];
int32_t isInput = availableStreamConfigs.data.i32[i + STREAM_IS_INPUT_OFFSET];
if (isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT
&& format == HAL_PIXEL_FORMAT_BLOB &&
(width * height > maxJpegWidth * maxJpegHeight)) {
maxJpegWidth = width;
maxJpegHeight = height;
}
}
} else {
camera_metadata_ro_entry availableJpegSizes =
mDeviceInfo.find(ANDROID_SCALER_AVAILABLE_JPEG_SIZES);
if (availableJpegSizes.count == 0 || availableJpegSizes.count % 2 != 0) {
return Size(0, 0);
}
// Get max jpeg size (area-wise).
for (size_t i = 0; i < availableJpegSizes.count; i += 2) {
if ((availableJpegSizes.data.i32[i] * availableJpegSizes.data.i32[i + 1])
> (maxJpegWidth * maxJpegHeight)) {
maxJpegWidth = availableJpegSizes.data.i32[i];
maxJpegHeight = availableJpegSizes.data.i32[i + 1];
}
}
}
return Size(maxJpegWidth, maxJpegHeight);
}
ssize_t Camera3Device::getJpegBufferSize(uint32_t width, uint32_t height) const {
// Get max jpeg size (area-wise).
Size maxJpegResolution = getMaxJpegResolution();
if (maxJpegResolution.width == 0) {
ALOGE("%s: Camera %d: Can't find find valid available jpeg sizes in static metadata!",
__FUNCTION__, mId);
return BAD_VALUE;
}
// Get max jpeg buffer size
ssize_t maxJpegBufferSize = 0;
camera_metadata_ro_entry jpegBufMaxSize = mDeviceInfo.find(ANDROID_JPEG_MAX_SIZE);
if (jpegBufMaxSize.count == 0) {
ALOGE("%s: Camera %d: Can't find maximum JPEG size in static metadata!", __FUNCTION__, mId);
return BAD_VALUE;
}
maxJpegBufferSize = jpegBufMaxSize.data.i32[0];
assert(kMinJpegBufferSize < maxJpegBufferSize);
// Calculate final jpeg buffer size for the given resolution.
float scaleFactor = ((float) (width * height)) /
(maxJpegResolution.width * maxJpegResolution.height);
ssize_t jpegBufferSize = scaleFactor * (maxJpegBufferSize - kMinJpegBufferSize) +
kMinJpegBufferSize;
if (jpegBufferSize > maxJpegBufferSize) {
jpegBufferSize = maxJpegBufferSize;
}
return jpegBufferSize;
}
status_t Camera3Device::dump(int fd, const Vector<String16> &args) {
ATRACE_CALL();
(void)args;
// Try to lock, but continue in case of failure (to avoid blocking in
// deadlocks)
bool gotInterfaceLock = tryLockSpinRightRound(mInterfaceLock);
bool gotLock = tryLockSpinRightRound(mLock);
ALOGW_IF(!gotInterfaceLock,
"Camera %d: %s: Unable to lock interface lock, proceeding anyway",
mId, __FUNCTION__);
ALOGW_IF(!gotLock,
"Camera %d: %s: Unable to lock main lock, proceeding anyway",
mId, __FUNCTION__);
String8 lines;
const char *status =
mStatus == STATUS_ERROR ? "ERROR" :
mStatus == STATUS_UNINITIALIZED ? "UNINITIALIZED" :
mStatus == STATUS_UNCONFIGURED ? "UNCONFIGURED" :
mStatus == STATUS_CONFIGURED ? "CONFIGURED" :
mStatus == STATUS_ACTIVE ? "ACTIVE" :
"Unknown";
lines.appendFormat(" Device status: %s\n", status);
if (mStatus == STATUS_ERROR) {
lines.appendFormat(" Error cause: %s\n", mErrorCause.string());
}
lines.appendFormat(" Stream configuration:\n");
if (mInputStream != NULL) {
write(fd, lines.string(), lines.size());
mInputStream->dump(fd, args);
} else {
lines.appendFormat(" No input stream.\n");
write(fd, lines.string(), lines.size());
}
for (size_t i = 0; i < mOutputStreams.size(); i++) {
mOutputStreams[i]->dump(fd,args);
}
lines = String8(" In-flight requests:\n");
if (mInFlightMap.size() == 0) {
lines.append(" None\n");
} else {
for (size_t i = 0; i < mInFlightMap.size(); i++) {
InFlightRequest r = mInFlightMap.valueAt(i);
lines.appendFormat(" Frame %d | Timestamp: %" PRId64 ", metadata"
" arrived: %s, buffers left: %d\n", mInFlightMap.keyAt(i),
r.shutterTimestamp, r.haveResultMetadata ? "true" : "false",
r.numBuffersLeft);
}
}
write(fd, lines.string(), lines.size());
{
lines = String8(" Last request sent:\n");
write(fd, lines.string(), lines.size());
CameraMetadata lastRequest = getLatestRequestLocked();
lastRequest.dump(fd, /*verbosity*/2, /*indentation*/6);
}
if (mHal3Device != NULL) {
lines = String8(" HAL device dump:\n");
write(fd, lines.string(), lines.size());
mHal3Device->ops->dump(mHal3Device, fd);
}
if (gotLock) mLock.unlock();
if (gotInterfaceLock) mInterfaceLock.unlock();
return OK;
}
const CameraMetadata& Camera3Device::info() const {
ALOGVV("%s: E", __FUNCTION__);
if (CC_UNLIKELY(mStatus == STATUS_UNINITIALIZED ||
mStatus == STATUS_ERROR)) {
ALOGW("%s: Access to static info %s!", __FUNCTION__,
mStatus == STATUS_ERROR ?
"when in error state" : "before init");
}
return mDeviceInfo;
}
status_t Camera3Device::checkStatusOkToCaptureLocked() {
switch (mStatus) {
case STATUS_ERROR:
CLOGE("Device has encountered a serious error");
return INVALID_OPERATION;
case STATUS_UNINITIALIZED:
CLOGE("Device not initialized");
return INVALID_OPERATION;
case STATUS_UNCONFIGURED:
case STATUS_CONFIGURED:
case STATUS_ACTIVE:
// OK
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
return OK;
}
status_t Camera3Device::convertMetadataListToRequestListLocked(
const List<const CameraMetadata> &metadataList, RequestList *requestList) {
if (requestList == NULL) {
CLOGE("requestList cannot be NULL.");
return BAD_VALUE;
}
int32_t burstId = 0;
for (List<const CameraMetadata>::const_iterator it = metadataList.begin();
it != metadataList.end(); ++it) {
sp<CaptureRequest> newRequest = setUpRequestLocked(*it);
if (newRequest == 0) {
CLOGE("Can't create capture request");
return BAD_VALUE;
}
// Setup burst Id and request Id
newRequest->mResultExtras.burstId = burstId++;
if (it->exists(ANDROID_REQUEST_ID)) {
if (it->find(ANDROID_REQUEST_ID).count == 0) {
CLOGE("RequestID entry exists; but must not be empty in metadata");
return BAD_VALUE;
}
newRequest->mResultExtras.requestId = it->find(ANDROID_REQUEST_ID).data.i32[0];
} else {
CLOGE("RequestID does not exist in metadata");
return BAD_VALUE;
}
requestList->push_back(newRequest);
ALOGV("%s: requestId = %" PRId32, __FUNCTION__, newRequest->mResultExtras.requestId);
}
return OK;
}
status_t Camera3Device::capture(CameraMetadata &request, int64_t* /*lastFrameNumber*/) {
ATRACE_CALL();
List<const CameraMetadata> requests;
requests.push_back(request);
return captureList(requests, /*lastFrameNumber*/NULL);
}
status_t Camera3Device::submitRequestsHelper(
const List<const CameraMetadata> &requests, bool repeating,
/*out*/
int64_t *lastFrameNumber) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
status_t res = checkStatusOkToCaptureLocked();
if (res != OK) {
// error logged by previous call
return res;
}
RequestList requestList;
res = convertMetadataListToRequestListLocked(requests, /*out*/&requestList);
if (res != OK) {
// error logged by previous call
return res;
}
if (repeating) {
res = mRequestThread->setRepeatingRequests(requestList, lastFrameNumber);
} else {
res = mRequestThread->queueRequestList(requestList, lastFrameNumber);
}
if (res == OK) {
waitUntilStateThenRelock(/*active*/true, kActiveTimeout);
if (res != OK) {
SET_ERR_L("Can't transition to active in %f seconds!",
kActiveTimeout/1e9);
}
ALOGV("Camera %d: Capture request %" PRId32 " enqueued", mId,
(*(requestList.begin()))->mResultExtras.requestId);
} else {
CLOGE("Cannot queue request. Impossible.");
return BAD_VALUE;
}
return res;
}
status_t Camera3Device::captureList(const List<const CameraMetadata> &requests,
int64_t *lastFrameNumber) {
ATRACE_CALL();
return submitRequestsHelper(requests, /*repeating*/false, lastFrameNumber);
}
status_t Camera3Device::setStreamingRequest(const CameraMetadata &request,
int64_t* /*lastFrameNumber*/) {
ATRACE_CALL();
List<const CameraMetadata> requests;
requests.push_back(request);
return setStreamingRequestList(requests, /*lastFrameNumber*/NULL);
}
status_t Camera3Device::setStreamingRequestList(const List<const CameraMetadata> &requests,
int64_t *lastFrameNumber) {
ATRACE_CALL();
return submitRequestsHelper(requests, /*repeating*/true, lastFrameNumber);
}
sp<Camera3Device::CaptureRequest> Camera3Device::setUpRequestLocked(
const CameraMetadata &request) {
status_t res;
if (mStatus == STATUS_UNCONFIGURED || mNeedConfig) {
res = configureStreamsLocked();
// Stream configuration failed due to unsupported configuration.
// Device back to unconfigured state. Client might try other configuraitons
if (res == BAD_VALUE && mStatus == STATUS_UNCONFIGURED) {
CLOGE("No streams configured");
return NULL;
}
// Stream configuration failed for other reason. Fatal.
if (res != OK) {
SET_ERR_L("Can't set up streams: %s (%d)", strerror(-res), res);
return NULL;
}
// Stream configuration successfully configure to empty stream configuration.
if (mStatus == STATUS_UNCONFIGURED) {
CLOGE("No streams configured");
return NULL;
}
}
sp<CaptureRequest> newRequest = createCaptureRequest(request);
return newRequest;
}
status_t Camera3Device::clearStreamingRequest(int64_t *lastFrameNumber) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
switch (mStatus) {
case STATUS_ERROR:
CLOGE("Device has encountered a serious error");
return INVALID_OPERATION;
case STATUS_UNINITIALIZED:
CLOGE("Device not initialized");
return INVALID_OPERATION;
case STATUS_UNCONFIGURED:
case STATUS_CONFIGURED:
case STATUS_ACTIVE:
// OK
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
ALOGV("Camera %d: Clearing repeating request", mId);
return mRequestThread->clearRepeatingRequests(lastFrameNumber);
}
status_t Camera3Device::waitUntilRequestReceived(int32_t requestId, nsecs_t timeout) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
return mRequestThread->waitUntilRequestProcessed(requestId, timeout);
}
status_t Camera3Device::createInputStream(
uint32_t width, uint32_t height, int format, int *id) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
ALOGV("Camera %d: Creating new input stream %d: %d x %d, format %d",
mId, mNextStreamId, width, height, format);
status_t res;
bool wasActive = false;
switch (mStatus) {
case STATUS_ERROR:
ALOGE("%s: Device has encountered a serious error", __FUNCTION__);
return INVALID_OPERATION;
case STATUS_UNINITIALIZED:
ALOGE("%s: Device not initialized", __FUNCTION__);
return INVALID_OPERATION;
case STATUS_UNCONFIGURED:
case STATUS_CONFIGURED:
// OK
break;
case STATUS_ACTIVE:
ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
res = internalPauseAndWaitLocked();
if (res != OK) {
SET_ERR_L("Can't pause captures to reconfigure streams!");
return res;
}
wasActive = true;
break;
default:
SET_ERR_L("%s: Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
assert(mStatus != STATUS_ACTIVE);
if (mInputStream != 0) {
ALOGE("%s: Cannot create more than 1 input stream", __FUNCTION__);
return INVALID_OPERATION;
}
sp<Camera3InputStream> newStream = new Camera3InputStream(mNextStreamId,
width, height, format);
newStream->setStatusTracker(mStatusTracker);
mInputStream = newStream;
*id = mNextStreamId++;
// Continue captures if active at start
if (wasActive) {
ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
res = configureStreamsLocked();
if (res != OK) {
ALOGE("%s: Can't reconfigure device for new stream %d: %s (%d)",
__FUNCTION__, mNextStreamId, strerror(-res), res);
return res;
}
internalResumeLocked();
}
ALOGV("Camera %d: Created input stream", mId);
return OK;
}
status_t Camera3Device::createZslStream(
uint32_t width, uint32_t height,
int depth,
/*out*/
int *id,
sp<Camera3ZslStream>* zslStream) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
ALOGV("Camera %d: Creating ZSL stream %d: %d x %d, depth %d",
mId, mNextStreamId, width, height, depth);
status_t res;
bool wasActive = false;
switch (mStatus) {
case STATUS_ERROR:
ALOGE("%s: Device has encountered a serious error", __FUNCTION__);
return INVALID_OPERATION;
case STATUS_UNINITIALIZED:
ALOGE("%s: Device not initialized", __FUNCTION__);
return INVALID_OPERATION;
case STATUS_UNCONFIGURED:
case STATUS_CONFIGURED:
// OK
break;
case STATUS_ACTIVE:
ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
res = internalPauseAndWaitLocked();
if (res != OK) {
SET_ERR_L("Can't pause captures to reconfigure streams!");
return res;
}
wasActive = true;
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
assert(mStatus != STATUS_ACTIVE);
if (mInputStream != 0) {
ALOGE("%s: Cannot create more than 1 input stream", __FUNCTION__);
return INVALID_OPERATION;
}
sp<Camera3ZslStream> newStream = new Camera3ZslStream(mNextStreamId,
width, height, depth);
newStream->setStatusTracker(mStatusTracker);
res = mOutputStreams.add(mNextStreamId, newStream);
if (res < 0) {
ALOGE("%s: Can't add new stream to set: %s (%d)",
__FUNCTION__, strerror(-res), res);
return res;
}
mInputStream = newStream;
mNeedConfig = true;
*id = mNextStreamId++;
*zslStream = newStream;
// Continue captures if active at start
if (wasActive) {
ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
res = configureStreamsLocked();
if (res != OK) {
ALOGE("%s: Can't reconfigure device for new stream %d: %s (%d)",
__FUNCTION__, mNextStreamId, strerror(-res), res);
return res;
}
internalResumeLocked();
}
ALOGV("Camera %d: Created ZSL stream", mId);
return OK;
}
status_t Camera3Device::createStream(sp<ANativeWindow> consumer,
uint32_t width, uint32_t height, int format, int *id) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
ALOGV("Camera %d: Creating new stream %d: %d x %d, format %d",
mId, mNextStreamId, width, height, format);
status_t res;
bool wasActive = false;
switch (mStatus) {
case STATUS_ERROR:
CLOGE("Device has encountered a serious error");
return INVALID_OPERATION;
case STATUS_UNINITIALIZED:
CLOGE("Device not initialized");
return INVALID_OPERATION;
case STATUS_UNCONFIGURED:
case STATUS_CONFIGURED:
// OK
break;
case STATUS_ACTIVE:
ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
res = internalPauseAndWaitLocked();
if (res != OK) {
SET_ERR_L("Can't pause captures to reconfigure streams!");
return res;
}
wasActive = true;
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
assert(mStatus != STATUS_ACTIVE);
sp<Camera3OutputStream> newStream;
if (format == HAL_PIXEL_FORMAT_BLOB) {
ssize_t jpegBufferSize = getJpegBufferSize(width, height);
if (jpegBufferSize <= 0) {
SET_ERR_L("Invalid jpeg buffer size %zd", jpegBufferSize);
return BAD_VALUE;
}
newStream = new Camera3OutputStream(mNextStreamId, consumer,
width, height, jpegBufferSize, format);
} else {
newStream = new Camera3OutputStream(mNextStreamId, consumer,
width, height, format);
}
newStream->setStatusTracker(mStatusTracker);
res = mOutputStreams.add(mNextStreamId, newStream);
if (res < 0) {
SET_ERR_L("Can't add new stream to set: %s (%d)", strerror(-res), res);
return res;
}
*id = mNextStreamId++;
mNeedConfig = true;
// Continue captures if active at start
if (wasActive) {
ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
res = configureStreamsLocked();
if (res != OK) {
CLOGE("Can't reconfigure device for new stream %d: %s (%d)",
mNextStreamId, strerror(-res), res);
return res;
}
internalResumeLocked();
}
ALOGV("Camera %d: Created new stream", mId);
return OK;
}
status_t Camera3Device::createReprocessStreamFromStream(int outputId, int *id) {
ATRACE_CALL();
(void)outputId; (void)id;
CLOGE("Unimplemented");
return INVALID_OPERATION;
}
status_t Camera3Device::getStreamInfo(int id,
uint32_t *width, uint32_t *height, uint32_t *format) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
switch (mStatus) {
case STATUS_ERROR:
CLOGE("Device has encountered a serious error");
return INVALID_OPERATION;
case STATUS_UNINITIALIZED:
CLOGE("Device not initialized!");
return INVALID_OPERATION;
case STATUS_UNCONFIGURED:
case STATUS_CONFIGURED:
case STATUS_ACTIVE:
// OK
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
ssize_t idx = mOutputStreams.indexOfKey(id);
if (idx == NAME_NOT_FOUND) {
CLOGE("Stream %d is unknown", id);
return idx;
}
if (width) *width = mOutputStreams[idx]->getWidth();
if (height) *height = mOutputStreams[idx]->getHeight();
if (format) *format = mOutputStreams[idx]->getFormat();
return OK;
}
status_t Camera3Device::setStreamTransform(int id,
int transform) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
switch (mStatus) {
case STATUS_ERROR:
CLOGE("Device has encountered a serious error");
return INVALID_OPERATION;
case STATUS_UNINITIALIZED:
CLOGE("Device not initialized");
return INVALID_OPERATION;
case STATUS_UNCONFIGURED:
case STATUS_CONFIGURED:
case STATUS_ACTIVE:
// OK
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
ssize_t idx = mOutputStreams.indexOfKey(id);
if (idx == NAME_NOT_FOUND) {
CLOGE("Stream %d does not exist",
id);
return BAD_VALUE;
}
return mOutputStreams.editValueAt(idx)->setTransform(transform);
}
status_t Camera3Device::deleteStream(int id) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
status_t res;
ALOGV("%s: Camera %d: Deleting stream %d", __FUNCTION__, mId, id);
// CameraDevice semantics require device to already be idle before
// deleteStream is called, unlike for createStream.
if (mStatus == STATUS_ACTIVE) {
ALOGV("%s: Camera %d: Device not idle", __FUNCTION__, mId);
return -EBUSY;
}
sp<Camera3StreamInterface> deletedStream;
ssize_t outputStreamIdx = mOutputStreams.indexOfKey(id);
if (mInputStream != NULL && id == mInputStream->getId()) {
deletedStream = mInputStream;
mInputStream.clear();
} else {
if (outputStreamIdx == NAME_NOT_FOUND) {
CLOGE("Stream %d does not exist", id);
return BAD_VALUE;
}
}
// Delete output stream or the output part of a bi-directional stream.
if (outputStreamIdx != NAME_NOT_FOUND) {
deletedStream = mOutputStreams.editValueAt(outputStreamIdx);
mOutputStreams.removeItem(id);
}
// Free up the stream endpoint so that it can be used by some other stream
res = deletedStream->disconnect();
if (res != OK) {
SET_ERR_L("Can't disconnect deleted stream %d", id);
// fall through since we want to still list the stream as deleted.
}
mDeletedStreams.add(deletedStream);
mNeedConfig = true;
return res;
}
status_t Camera3Device::deleteReprocessStream(int id) {
ATRACE_CALL();
(void)id;
CLOGE("Unimplemented");
return INVALID_OPERATION;
}
status_t Camera3Device::configureStreams() {
ATRACE_CALL();
ALOGV("%s: E", __FUNCTION__);
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
return configureStreamsLocked();
}
status_t Camera3Device::createDefaultRequest(int templateId,
CameraMetadata *request) {
ATRACE_CALL();
ALOGV("%s: for template %d", __FUNCTION__, templateId);
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
switch (mStatus) {
case STATUS_ERROR:
CLOGE("Device has encountered a serious error");
return INVALID_OPERATION;
case STATUS_UNINITIALIZED:
CLOGE("Device is not initialized!");
return INVALID_OPERATION;
case STATUS_UNCONFIGURED:
case STATUS_CONFIGURED:
case STATUS_ACTIVE:
// OK
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
if (!mRequestTemplateCache[templateId].isEmpty()) {
*request = mRequestTemplateCache[templateId];
return OK;
}
const camera_metadata_t *rawRequest;
ATRACE_BEGIN("camera3->construct_default_request_settings");
rawRequest = mHal3Device->ops->construct_default_request_settings(
mHal3Device, templateId);
ATRACE_END();
if (rawRequest == NULL) {
SET_ERR_L("HAL is unable to construct default settings for template %d",
templateId);
return DEAD_OBJECT;
}
*request = rawRequest;
mRequestTemplateCache[templateId] = rawRequest;
return OK;
}
status_t Camera3Device::waitUntilDrained() {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
Mutex::Autolock l(mLock);
return waitUntilDrainedLocked();
}
status_t Camera3Device::waitUntilDrainedLocked() {
switch (mStatus) {
case STATUS_UNINITIALIZED:
case STATUS_UNCONFIGURED:
ALOGV("%s: Already idle", __FUNCTION__);
return OK;
case STATUS_CONFIGURED:
// To avoid race conditions, check with tracker to be sure
case STATUS_ERROR:
case STATUS_ACTIVE:
// Need to verify shut down
break;
default:
SET_ERR_L("Unexpected status: %d",mStatus);
return INVALID_OPERATION;
}
ALOGV("%s: Camera %d: Waiting until idle", __FUNCTION__, mId);
status_t res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
if (res != OK) {
SET_ERR_L("Error waiting for HAL to drain: %s (%d)", strerror(-res),
res);
}
return res;
}
// Pause to reconfigure
status_t Camera3Device::internalPauseAndWaitLocked() {
mRequestThread->setPaused(true);
mPauseStateNotify = true;
ALOGV("%s: Camera %d: Internal wait until idle", __FUNCTION__, mId);
status_t res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
if (res != OK) {
SET_ERR_L("Can't idle device in %f seconds!",
kShutdownTimeout/1e9);
}
return res;
}
// Resume after internalPauseAndWaitLocked
status_t Camera3Device::internalResumeLocked() {
status_t res;
mRequestThread->setPaused(false);
res = waitUntilStateThenRelock(/*active*/ true, kActiveTimeout);
if (res != OK) {
SET_ERR_L("Can't transition to active in %f seconds!",
kActiveTimeout/1e9);
}
mPauseStateNotify = false;
return OK;
}
status_t Camera3Device::waitUntilStateThenRelock(bool active,
nsecs_t timeout) {
status_t res = OK;
if (active == (mStatus == STATUS_ACTIVE)) {
// Desired state already reached
return res;
}
bool stateSeen = false;
do {
mRecentStatusUpdates.clear();
res = mStatusChanged.waitRelative(mLock, timeout);
if (res != OK) break;
// Check state change history during wait
for (size_t i = 0; i < mRecentStatusUpdates.size(); i++) {
if (active == (mRecentStatusUpdates[i] == STATUS_ACTIVE) ) {
stateSeen = true;
break;
}
}
} while (!stateSeen);
return res;
}
status_t Camera3Device::setNotifyCallback(NotificationListener *listener) {
ATRACE_CALL();
Mutex::Autolock l(mOutputLock);
if (listener != NULL && mListener != NULL) {
ALOGW("%s: Replacing old callback listener", __FUNCTION__);
}
mListener = listener;
mRequestThread->setNotifyCallback(listener);
return OK;
}
bool Camera3Device::willNotify3A() {
return false;
}
status_t Camera3Device::waitForNextFrame(nsecs_t timeout) {
status_t res;
Mutex::Autolock l(mOutputLock);
while (mResultQueue.empty()) {
res = mResultSignal.waitRelative(mOutputLock, timeout);
if (res == TIMED_OUT) {
return res;
} else if (res != OK) {
ALOGW("%s: Camera %d: No frame in %" PRId64 " ns: %s (%d)",
__FUNCTION__, mId, timeout, strerror(-res), res);
return res;
}
}
return OK;
}
status_t Camera3Device::getNextResult(CaptureResult *frame) {
ATRACE_CALL();
Mutex::Autolock l(mOutputLock);
if (mResultQueue.empty()) {
return NOT_ENOUGH_DATA;
}
if (frame == NULL) {
ALOGE("%s: argument cannot be NULL", __FUNCTION__);
return BAD_VALUE;
}
CaptureResult &result = *(mResultQueue.begin());
frame->mResultExtras = result.mResultExtras;
frame->mMetadata.acquire(result.mMetadata);
mResultQueue.erase(mResultQueue.begin());
return OK;
}
status_t Camera3Device::triggerAutofocus(uint32_t id) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
ALOGV("%s: Triggering autofocus, id %d", __FUNCTION__, id);
// Mix-in this trigger into the next request and only the next request.
RequestTrigger trigger[] = {
{
ANDROID_CONTROL_AF_TRIGGER,
ANDROID_CONTROL_AF_TRIGGER_START
},
{
ANDROID_CONTROL_AF_TRIGGER_ID,
static_cast<int32_t>(id)
}
};
return mRequestThread->queueTrigger(trigger,
sizeof(trigger)/sizeof(trigger[0]));
}
status_t Camera3Device::triggerCancelAutofocus(uint32_t id) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
ALOGV("%s: Triggering cancel autofocus, id %d", __FUNCTION__, id);
// Mix-in this trigger into the next request and only the next request.
RequestTrigger trigger[] = {
{
ANDROID_CONTROL_AF_TRIGGER,
ANDROID_CONTROL_AF_TRIGGER_CANCEL
},
{
ANDROID_CONTROL_AF_TRIGGER_ID,
static_cast<int32_t>(id)
}
};
return mRequestThread->queueTrigger(trigger,
sizeof(trigger)/sizeof(trigger[0]));
}
status_t Camera3Device::triggerPrecaptureMetering(uint32_t id) {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
ALOGV("%s: Triggering precapture metering, id %d", __FUNCTION__, id);
// Mix-in this trigger into the next request and only the next request.
RequestTrigger trigger[] = {
{
ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER,
ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER_START
},
{
ANDROID_CONTROL_AE_PRECAPTURE_ID,
static_cast<int32_t>(id)
}
};
return mRequestThread->queueTrigger(trigger,
sizeof(trigger)/sizeof(trigger[0]));
}
status_t Camera3Device::pushReprocessBuffer(int reprocessStreamId,
buffer_handle_t *buffer, wp<BufferReleasedListener> listener) {
ATRACE_CALL();
(void)reprocessStreamId; (void)buffer; (void)listener;
CLOGE("Unimplemented");
return INVALID_OPERATION;
}
status_t Camera3Device::flush(int64_t *frameNumber) {
ATRACE_CALL();
ALOGV("%s: Camera %d: Flushing all requests", __FUNCTION__, mId);
Mutex::Autolock il(mInterfaceLock);
NotificationListener* listener;
{
Mutex::Autolock l(mOutputLock);
listener = mListener;
}
{
Mutex::Autolock l(mLock);
mRequestThread->clear(listener, /*out*/frameNumber);
}
status_t res;
if (mHal3Device->common.version >= CAMERA_DEVICE_API_VERSION_3_1) {
res = mHal3Device->ops->flush(mHal3Device);
} else {
Mutex::Autolock l(mLock);
res = waitUntilDrainedLocked();
}
return res;
}
uint32_t Camera3Device::getDeviceVersion() {
ATRACE_CALL();
Mutex::Autolock il(mInterfaceLock);
return mDeviceVersion;
}
/**
* Methods called by subclasses
*/
void Camera3Device::notifyStatus(bool idle) {
{
// Need mLock to safely update state and synchronize to current
// state of methods in flight.
Mutex::Autolock l(mLock);
// We can get various system-idle notices from the status tracker
// while starting up. Only care about them if we've actually sent
// in some requests recently.
if (mStatus != STATUS_ACTIVE && mStatus != STATUS_CONFIGURED) {
return;
}
ALOGV("%s: Camera %d: Now %s", __FUNCTION__, mId,
idle ? "idle" : "active");
mStatus = idle ? STATUS_CONFIGURED : STATUS_ACTIVE;
mRecentStatusUpdates.add(mStatus);
mStatusChanged.signal();
// Skip notifying listener if we're doing some user-transparent
// state changes
if (mPauseStateNotify) return;
}
NotificationListener *listener;
{
Mutex::Autolock l(mOutputLock);
listener = mListener;
}
if (idle && listener != NULL) {
listener->notifyIdle();
}
}
/**
* Camera3Device private methods
*/
sp<Camera3Device::CaptureRequest> Camera3Device::createCaptureRequest(
const CameraMetadata &request) {
ATRACE_CALL();
status_t res;
sp<CaptureRequest> newRequest = new CaptureRequest;
newRequest->mSettings = request;
camera_metadata_entry_t inputStreams =
newRequest->mSettings.find(ANDROID_REQUEST_INPUT_STREAMS);
if (inputStreams.count > 0) {
if (mInputStream == NULL ||
mInputStream->getId() != inputStreams.data.i32[0]) {
CLOGE("Request references unknown input stream %d",
inputStreams.data.u8[0]);
return NULL;
}
// Lazy completion of stream configuration (allocation/registration)
// on first use
if (mInputStream->isConfiguring()) {
res = mInputStream->finishConfiguration(mHal3Device);
if (res != OK) {
SET_ERR_L("Unable to finish configuring input stream %d:"
" %s (%d)",
mInputStream->getId(), strerror(-res), res);
return NULL;
}
}
newRequest->mInputStream = mInputStream;
newRequest->mSettings.erase(ANDROID_REQUEST_INPUT_STREAMS);
}
camera_metadata_entry_t streams =
newRequest->mSettings.find(ANDROID_REQUEST_OUTPUT_STREAMS);
if (streams.count == 0) {
CLOGE("Zero output streams specified!");
return NULL;
}
for (size_t i = 0; i < streams.count; i++) {
int idx = mOutputStreams.indexOfKey(streams.data.i32[i]);
if (idx == NAME_NOT_FOUND) {
CLOGE("Request references unknown stream %d",
streams.data.u8[i]);
return NULL;
}
sp<Camera3OutputStreamInterface> stream =
mOutputStreams.editValueAt(idx);
// Lazy completion of stream configuration (allocation/registration)
// on first use
if (stream->isConfiguring()) {
res = stream->finishConfiguration(mHal3Device);
if (res != OK) {
SET_ERR_L("Unable to finish configuring stream %d: %s (%d)",
stream->getId(), strerror(-res), res);
return NULL;
}
}
newRequest->mOutputStreams.push(stream);
}
newRequest->mSettings.erase(ANDROID_REQUEST_OUTPUT_STREAMS);
return newRequest;
}
status_t Camera3Device::configureStreamsLocked() {
ATRACE_CALL();
status_t res;
if (mStatus != STATUS_UNCONFIGURED && mStatus != STATUS_CONFIGURED) {
CLOGE("Not idle");
return INVALID_OPERATION;
}
if (!mNeedConfig) {
ALOGV("%s: Skipping config, no stream changes", __FUNCTION__);
return OK;
}
// Workaround for device HALv3.2 or older spec bug - zero streams requires
// adding a dummy stream instead.
// TODO: Bug: 17321404 for fixing the HAL spec and removing this workaround.
if (mOutputStreams.size() == 0) {
addDummyStreamLocked();
} else {
tryRemoveDummyStreamLocked();
}
// Start configuring the streams
ALOGV("%s: Camera %d: Starting stream configuration", __FUNCTION__, mId);
camera3_stream_configuration config;
config.num_streams = (mInputStream != NULL) + mOutputStreams.size();
Vector<camera3_stream_t*> streams;
streams.setCapacity(config.num_streams);
if (mInputStream != NULL) {
camera3_stream_t *inputStream;
inputStream = mInputStream->startConfiguration();
if (inputStream == NULL) {
SET_ERR_L("Can't start input stream configuration");
return INVALID_OPERATION;
}
streams.add(inputStream);
}
for (size_t i = 0; i < mOutputStreams.size(); i++) {
// Don't configure bidi streams twice, nor add them twice to the list
if (mOutputStreams[i].get() ==
static_cast<Camera3StreamInterface*>(mInputStream.get())) {
config.num_streams--;
continue;
}
camera3_stream_t *outputStream;
outputStream = mOutputStreams.editValueAt(i)->startConfiguration();
if (outputStream == NULL) {
SET_ERR_L("Can't start output stream configuration");
return INVALID_OPERATION;
}
streams.add(outputStream);
}
config.streams = streams.editArray();
// Do the HAL configuration; will potentially touch stream
// max_buffers, usage, priv fields.
ATRACE_BEGIN("camera3->configure_streams");
res = mHal3Device->ops->configure_streams(mHal3Device, &config);
ATRACE_END();
if (res == BAD_VALUE) {
// HAL rejected this set of streams as unsupported, clean up config
// attempt and return to unconfigured state
if (mInputStream != NULL && mInputStream->isConfiguring()) {
res = mInputStream->cancelConfiguration();
if (res != OK) {
SET_ERR_L("Can't cancel configuring input stream %d: %s (%d)",
mInputStream->getId(), strerror(-res), res);
return res;
}
}
for (size_t i = 0; i < mOutputStreams.size(); i++) {
sp<Camera3OutputStreamInterface> outputStream =
mOutputStreams.editValueAt(i);
if (outputStream->isConfiguring()) {
res = outputStream->cancelConfiguration();
if (res != OK) {
SET_ERR_L(
"Can't cancel configuring output stream %d: %s (%d)",
outputStream->getId(), strerror(-res), res);
return res;
}
}
}
// Return state to that at start of call, so that future configures
// properly clean things up
mStatus = STATUS_UNCONFIGURED;
mNeedConfig = true;
ALOGV("%s: Camera %d: Stream configuration failed", __FUNCTION__, mId);
return BAD_VALUE;
} else if (res != OK) {
// Some other kind of error from configure_streams - this is not
// expected
SET_ERR_L("Unable to configure streams with HAL: %s (%d)",
strerror(-res), res);
return res;
}
// Finish all stream configuration immediately.
// TODO: Try to relax this later back to lazy completion, which should be
// faster
if (mInputStream != NULL && mInputStream->isConfiguring()) {
res = mInputStream->finishConfiguration(mHal3Device);
if (res != OK) {
SET_ERR_L("Can't finish configuring input stream %d: %s (%d)",
mInputStream->getId(), strerror(-res), res);
return res;
}
}
for (size_t i = 0; i < mOutputStreams.size(); i++) {
sp<Camera3OutputStreamInterface> outputStream =
mOutputStreams.editValueAt(i);
if (outputStream->isConfiguring()) {
res = outputStream->finishConfiguration(mHal3Device);
if (res != OK) {
SET_ERR_L("Can't finish configuring output stream %d: %s (%d)",
outputStream->getId(), strerror(-res), res);
return res;
}
}
}
// Request thread needs to know to avoid using repeat-last-settings protocol
// across configure_streams() calls
mRequestThread->configurationComplete();
// Update device state
mNeedConfig = false;
if (mDummyStreamId == NO_STREAM) {
mStatus = STATUS_CONFIGURED;
} else {
mStatus = STATUS_UNCONFIGURED;
}
ALOGV("%s: Camera %d: Stream configuration complete", __FUNCTION__, mId);
// tear down the deleted streams after configure streams.
mDeletedStreams.clear();
return OK;
}
status_t Camera3Device::addDummyStreamLocked() {
ATRACE_CALL();
status_t res;
if (mDummyStreamId != NO_STREAM) {
// Should never be adding a second dummy stream when one is already
// active
SET_ERR_L("%s: Camera %d: A dummy stream already exists!",
__FUNCTION__, mId);
return INVALID_OPERATION;
}
ALOGV("%s: Camera %d: Adding a dummy stream", __FUNCTION__, mId);
sp<Camera3OutputStreamInterface> dummyStream =
new Camera3DummyStream(mNextStreamId);
res = mOutputStreams.add(mNextStreamId, dummyStream);
if (res < 0) {
SET_ERR_L("Can't add dummy stream to set: %s (%d)", strerror(-res), res);
return res;
}
mDummyStreamId = mNextStreamId;
mNextStreamId++;
return OK;
}
status_t Camera3Device::tryRemoveDummyStreamLocked() {
ATRACE_CALL();
status_t res;
if (mDummyStreamId == NO_STREAM) return OK;
if (mOutputStreams.size() == 1) return OK;
ALOGV("%s: Camera %d: Removing the dummy stream", __FUNCTION__, mId);
// Ok, have a dummy stream and there's at least one other output stream,
// so remove the dummy
sp<Camera3StreamInterface> deletedStream;
ssize_t outputStreamIdx = mOutputStreams.indexOfKey(mDummyStreamId);
if (outputStreamIdx == NAME_NOT_FOUND) {
SET_ERR_L("Dummy stream %d does not appear to exist", mDummyStreamId);
return INVALID_OPERATION;
}
deletedStream = mOutputStreams.editValueAt(outputStreamIdx);
mOutputStreams.removeItemsAt(outputStreamIdx);
// Free up the stream endpoint so that it can be used by some other stream
res = deletedStream->disconnect();
if (res != OK) {
SET_ERR_L("Can't disconnect deleted dummy stream %d", mDummyStreamId);
// fall through since we want to still list the stream as deleted.
}
mDeletedStreams.add(deletedStream);
mDummyStreamId = NO_STREAM;
return res;
}
void Camera3Device::setErrorState(const char *fmt, ...) {
Mutex::Autolock l(mLock);
va_list args;
va_start(args, fmt);
setErrorStateLockedV(fmt, args);
va_end(args);
}
void Camera3Device::setErrorStateV(const char *fmt, va_list args) {
Mutex::Autolock l(mLock);
setErrorStateLockedV(fmt, args);
}
void Camera3Device::setErrorStateLocked(const char *fmt, ...) {
va_list args;
va_start(args, fmt);
setErrorStateLockedV(fmt, args);
va_end(args);
}
void Camera3Device::setErrorStateLockedV(const char *fmt, va_list args) {
// Print out all error messages to log
String8 errorCause = String8::formatV(fmt, args);
ALOGE("Camera %d: %s", mId, errorCause.string());
// But only do error state transition steps for the first error
if (mStatus == STATUS_ERROR || mStatus == STATUS_UNINITIALIZED) return;
mErrorCause = errorCause;
mRequestThread->setPaused(true);
mStatus = STATUS_ERROR;
// Notify upstream about a device error
if (mListener != NULL) {
mListener->notifyError(ICameraDeviceCallbacks::ERROR_CAMERA_DEVICE,
CaptureResultExtras());
}
// Save stack trace. View by dumping it later.
CameraTraces::saveTrace();
// TODO: consider adding errorCause and client pid/procname
}
/**
* In-flight request management
*/
status_t Camera3Device::registerInFlight(uint32_t frameNumber,
int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput) {
ATRACE_CALL();
Mutex::Autolock l(mInFlightLock);
ssize_t res;
res = mInFlightMap.add(frameNumber, InFlightRequest(numBuffers, resultExtras, hasInput));
if (res < 0) return res;
return OK;
}
/**
* Check if all 3A fields are ready, and send off a partial 3A-only result
* to the output frame queue
*/
bool Camera3Device::processPartial3AResult(
uint32_t frameNumber,
const CameraMetadata& partial, const CaptureResultExtras& resultExtras) {
// Check if all 3A states are present
// The full list of fields is
// android.control.afMode
// android.control.awbMode
// android.control.aeState
// android.control.awbState
// android.control.afState
// android.control.afTriggerID
// android.control.aePrecaptureID
// TODO: Add android.control.aeMode
bool gotAllStates = true;
uint8_t afMode;
uint8_t awbMode;
uint8_t aeState;
uint8_t afState;
uint8_t awbState;
gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AF_MODE,
&afMode, frameNumber);
gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AWB_MODE,
&awbMode, frameNumber);
gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AE_STATE,
&aeState, frameNumber);
gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AF_STATE,
&afState, frameNumber);
gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AWB_STATE,
&awbState, frameNumber);
if (!gotAllStates) return false;
ALOGVV("%s: Camera %d: Frame %d, Request ID %d: AF mode %d, AWB mode %d, "
"AF state %d, AE state %d, AWB state %d, "
"AF trigger %d, AE precapture trigger %d",
__FUNCTION__, mId, frameNumber, resultExtras.requestId,
afMode, awbMode,
afState, aeState, awbState,
resultExtras.afTriggerId, resultExtras.precaptureTriggerId);
// Got all states, so construct a minimal result to send
// In addition to the above fields, this means adding in
// android.request.frameCount
// android.request.requestId
// android.quirks.partialResult (for HAL version below HAL3.2)
const size_t kMinimal3AResultEntries = 10;
Mutex::Autolock l(mOutputLock);
CaptureResult captureResult;
captureResult.mResultExtras = resultExtras;
captureResult.mMetadata = CameraMetadata(kMinimal3AResultEntries, /*dataCapacity*/ 0);
// TODO: change this to sp<CaptureResult>. This will need other changes, including,
// but not limited to CameraDeviceBase::getNextResult
CaptureResult& min3AResult =
*mResultQueue.insert(mResultQueue.end(), captureResult);
if (!insert3AResult(min3AResult.mMetadata, ANDROID_REQUEST_FRAME_COUNT,
// TODO: This is problematic casting. Need to fix CameraMetadata.
reinterpret_cast<int32_t*>(&frameNumber), frameNumber)) {
return false;
}
int32_t requestId = resultExtras.requestId;
if (!insert3AResult(min3AResult.mMetadata, ANDROID_REQUEST_ID,
&requestId, frameNumber)) {
return false;
}
if (mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
static const uint8_t partialResult = ANDROID_QUIRKS_PARTIAL_RESULT_PARTIAL;
if (!insert3AResult(min3AResult.mMetadata, ANDROID_QUIRKS_PARTIAL_RESULT,
&partialResult, frameNumber)) {
return false;
}
}
if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AF_MODE,
&afMode, frameNumber)) {
return false;
}
if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AWB_MODE,
&awbMode, frameNumber)) {
return false;
}
if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AE_STATE,
&aeState, frameNumber)) {
return false;
}
if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AF_STATE,
&afState, frameNumber)) {
return false;
}
if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AWB_STATE,
&awbState, frameNumber)) {
return false;
}
if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AF_TRIGGER_ID,
&resultExtras.afTriggerId, frameNumber)) {
return false;
}
if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AE_PRECAPTURE_ID,
&resultExtras.precaptureTriggerId, frameNumber)) {
return false;
}
// We only send the aggregated partial when all 3A related metadata are available
// For both API1 and API2.
// TODO: we probably should pass through all partials to API2 unconditionally.
mResultSignal.signal();
return true;
}
template<typename T>
bool Camera3Device::get3AResult(const CameraMetadata& result, int32_t tag,
T* value, uint32_t frameNumber) {
(void) frameNumber;
camera_metadata_ro_entry_t entry;
entry = result.find(tag);
if (entry.count == 0) {
ALOGVV("%s: Camera %d: Frame %d: No %s provided by HAL!", __FUNCTION__,
mId, frameNumber, get_camera_metadata_tag_name(tag));
return false;
}
if (sizeof(T) == sizeof(uint8_t)) {
*value = entry.data.u8[0];
} else if (sizeof(T) == sizeof(int32_t)) {
*value = entry.data.i32[0];
} else {
ALOGE("%s: Unexpected type", __FUNCTION__);
return false;
}
return true;
}
template<typename T>
bool Camera3Device::insert3AResult(CameraMetadata& result, int32_t tag,
const T* value, uint32_t frameNumber) {
if (result.update(tag, value, 1) != NO_ERROR) {
mResultQueue.erase(--mResultQueue.end(), mResultQueue.end());
SET_ERR("Frame %d: Failed to set %s in partial metadata",
frameNumber, get_camera_metadata_tag_name(tag));
return false;
}
return true;
}
void Camera3Device::returnOutputBuffers(
const camera3_stream_buffer_t *outputBuffers, size_t numBuffers,
nsecs_t timestamp) {
for (size_t i = 0; i < numBuffers; i++)
{
Camera3Stream *stream = Camera3Stream::cast(outputBuffers[i].stream);
status_t res = stream->returnBuffer(outputBuffers[i], timestamp);
// Note: stream may be deallocated at this point, if this buffer was
// the last reference to it.
if (res != OK) {
ALOGE("Can't return buffer to its stream: %s (%d)",
strerror(-res), res);
}
}
}
void Camera3Device::removeInFlightRequestIfReadyLocked(int idx) {
const InFlightRequest &request = mInFlightMap.valueAt(idx);
const uint32_t frameNumber = mInFlightMap.keyAt(idx);
nsecs_t sensorTimestamp = request.sensorTimestamp;
nsecs_t shutterTimestamp = request.shutterTimestamp;
// Check if it's okay to remove the request from InFlightMap:
// In the case of a successful request:
// all input and output buffers, all result metadata, shutter callback
// arrived.
// In the case of a unsuccessful request:
// all input and output buffers arrived.
if (request.numBuffersLeft == 0 &&
(request.requestStatus != OK ||
(request.haveResultMetadata && shutterTimestamp != 0))) {
ATRACE_ASYNC_END("frame capture", frameNumber);
// Sanity check - if sensor timestamp matches shutter timestamp
if (request.requestStatus == OK &&
sensorTimestamp != shutterTimestamp) {
SET_ERR("sensor timestamp (%" PRId64
") for frame %d doesn't match shutter timestamp (%" PRId64 ")",
sensorTimestamp, frameNumber, shutterTimestamp);
}
// for an unsuccessful request, it may have pending output buffers to
// return.
assert(request.requestStatus != OK ||
request.pendingOutputBuffers.size() == 0);
returnOutputBuffers(request.pendingOutputBuffers.array(),
request.pendingOutputBuffers.size(), 0);
mInFlightMap.removeItemsAt(idx, 1);
ALOGVV("%s: removed frame %d from InFlightMap", __FUNCTION__, frameNumber);
}
// Sanity check - if we have too many in-flight frames, something has
// likely gone wrong
if (mInFlightMap.size() > kInFlightWarnLimit) {
CLOGE("In-flight list too large: %zu", mInFlightMap.size());
}
}
void Camera3Device::sendCaptureResult(CameraMetadata &pendingMetadata,
CaptureResultExtras &resultExtras,
CameraMetadata &collectedPartialResult,
uint32_t frameNumber) {
if (pendingMetadata.isEmpty())
return;
Mutex::Autolock l(mOutputLock);
// TODO: need to track errors for tighter bounds on expected frame number
if (frameNumber < mNextResultFrameNumber) {
SET_ERR("Out-of-order capture result metadata submitted! "
"(got frame number %d, expecting %d)",
frameNumber, mNextResultFrameNumber);
return;
}
mNextResultFrameNumber = frameNumber + 1;
CaptureResult captureResult;
captureResult.mResultExtras = resultExtras;
captureResult.mMetadata = pendingMetadata;
if (captureResult.mMetadata.update(ANDROID_REQUEST_FRAME_COUNT,
(int32_t*)&frameNumber, 1) != OK) {
SET_ERR("Failed to set frame# in metadata (%d)",
frameNumber);
return;
} else {
ALOGVV("%s: Camera %d: Set frame# in metadata (%d)",
__FUNCTION__, mId, frameNumber);
}
// Append any previous partials to form a complete result
if (mUsePartialResult && !collectedPartialResult.isEmpty()) {
captureResult.mMetadata.append(collectedPartialResult);
}
captureResult.mMetadata.sort();
// Check that there's a timestamp in the result metadata
camera_metadata_entry entry =
captureResult.mMetadata.find(ANDROID_SENSOR_TIMESTAMP);
if (entry.count == 0) {
SET_ERR("No timestamp provided by HAL for frame %d!",
frameNumber);
return;
}
// Valid result, insert into queue
List<CaptureResult>::iterator queuedResult =
mResultQueue.insert(mResultQueue.end(), CaptureResult(captureResult));
ALOGVV("%s: result requestId = %" PRId32 ", frameNumber = %" PRId64
", burstId = %" PRId32, __FUNCTION__,
queuedResult->mResultExtras.requestId,
queuedResult->mResultExtras.frameNumber,
queuedResult->mResultExtras.burstId);
mResultSignal.signal();
}
/**
* Camera HAL device callback methods
*/
void Camera3Device::processCaptureResult(const camera3_capture_result *result) {
ATRACE_CALL();
status_t res;
uint32_t frameNumber = result->frame_number;
if (result->result == NULL && result->num_output_buffers == 0 &&
result->input_buffer == NULL) {
SET_ERR("No result data provided by HAL for frame %d",
frameNumber);
return;
}
// For HAL3.2 or above, If HAL doesn't support partial, it must always set
// partial_result to 1 when metadata is included in this result.
if (!mUsePartialResult &&
mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2 &&
result->result != NULL &&
result->partial_result != 1) {
SET_ERR("Result is malformed for frame %d: partial_result %u must be 1"
" if partial result is not supported",
frameNumber, result->partial_result);
return;
}
bool isPartialResult = false;
CameraMetadata collectedPartialResult;
CaptureResultExtras resultExtras;
bool hasInputBufferInRequest = false;
// Get shutter timestamp and resultExtras from list of in-flight requests,
// where it was added by the shutter notification for this frame. If the
// shutter timestamp isn't received yet, append the output buffers to the
// in-flight request and they will be returned when the shutter timestamp
// arrives. Update the in-flight status and remove the in-flight entry if
// all result data and shutter timestamp have been received.
nsecs_t shutterTimestamp = 0;
{
Mutex::Autolock l(mInFlightLock);
ssize_t idx = mInFlightMap.indexOfKey(frameNumber);
if (idx == NAME_NOT_FOUND) {
SET_ERR("Unknown frame number for capture result: %d",
frameNumber);
return;
}
InFlightRequest &request = mInFlightMap.editValueAt(idx);
ALOGVV("%s: got InFlightRequest requestId = %" PRId32
", frameNumber = %" PRId64 ", burstId = %" PRId32
", partialResultCount = %d",
__FUNCTION__, request.resultExtras.requestId,
request.resultExtras.frameNumber, request.resultExtras.burstId,
result->partial_result);
// Always update the partial count to the latest one if it's not 0
// (buffers only). When framework aggregates adjacent partial results
// into one, the latest partial count will be used.
if (result->partial_result != 0)
request.resultExtras.partialResultCount = result->partial_result;
// Check if this result carries only partial metadata
if (mUsePartialResult && result->result != NULL) {
if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
if (result->partial_result > mNumPartialResults || result->partial_result < 1) {
SET_ERR("Result is malformed for frame %d: partial_result %u must be in"
" the range of [1, %d] when metadata is included in the result",
frameNumber, result->partial_result, mNumPartialResults);
return;
}
isPartialResult = (result->partial_result < mNumPartialResults);
if (isPartialResult) {
request.partialResult.collectedResult.append(result->result);
}
} else {
camera_metadata_ro_entry_t partialResultEntry;
res = find_camera_metadata_ro_entry(result->result,
ANDROID_QUIRKS_PARTIAL_RESULT, &partialResultEntry);
if (res != NAME_NOT_FOUND &&
partialResultEntry.count > 0 &&
partialResultEntry.data.u8[0] ==
ANDROID_QUIRKS_PARTIAL_RESULT_PARTIAL) {
// A partial result. Flag this as such, and collect this
// set of metadata into the in-flight entry.
isPartialResult = true;
request.partialResult.collectedResult.append(
result->result);
request.partialResult.collectedResult.erase(
ANDROID_QUIRKS_PARTIAL_RESULT);
}
}
if (isPartialResult) {
// Fire off a 3A-only result if possible
if (!request.partialResult.haveSent3A) {
request.partialResult.haveSent3A =
processPartial3AResult(frameNumber,
request.partialResult.collectedResult,
request.resultExtras);
}
}
}
shutterTimestamp = request.shutterTimestamp;
hasInputBufferInRequest = request.hasInputBuffer;
// Did we get the (final) result metadata for this capture?
if (result->result != NULL && !isPartialResult) {
if (request.haveResultMetadata) {
SET_ERR("Called multiple times with metadata for frame %d",
frameNumber);
return;
}
if (mUsePartialResult &&
!request.partialResult.collectedResult.isEmpty()) {
collectedPartialResult.acquire(
request.partialResult.collectedResult);
}
request.haveResultMetadata = true;
}
uint32_t numBuffersReturned = result->num_output_buffers;
if (result->input_buffer != NULL) {
if (hasInputBufferInRequest) {
numBuffersReturned += 1;
} else {
ALOGW("%s: Input buffer should be NULL if there is no input"
" buffer sent in the request",
__FUNCTION__);
}
}
request.numBuffersLeft -= numBuffersReturned;
if (request.numBuffersLeft < 0) {
SET_ERR("Too many buffers returned for frame %d",
frameNumber);
return;
}
camera_metadata_ro_entry_t entry;
res = find_camera_metadata_ro_entry(result->result,
ANDROID_SENSOR_TIMESTAMP, &entry);
if (res == OK && entry.count == 1) {
request.sensorTimestamp = entry.data.i64[0];
}
// If shutter event isn't received yet, append the output buffers to
// the in-flight request. Otherwise, return the output buffers to
// streams.
if (shutterTimestamp == 0) {
request.pendingOutputBuffers.appendArray(result->output_buffers,
result->num_output_buffers);
} else {
returnOutputBuffers(result->output_buffers,
result->num_output_buffers, shutterTimestamp);
}
if (result->result != NULL && !isPartialResult) {
if (shutterTimestamp == 0) {
request.pendingMetadata = result->result;
request.partialResult.collectedResult = collectedPartialResult;
} else {
CameraMetadata metadata;
metadata = result->result;
sendCaptureResult(metadata, request.resultExtras,
collectedPartialResult, frameNumber);
}
}
removeInFlightRequestIfReadyLocked(idx);
} // scope for mInFlightLock
if (result->input_buffer != NULL) {
if (hasInputBufferInRequest) {
Camera3Stream *stream =
Camera3Stream::cast(result->input_buffer->stream);
res = stream->returnInputBuffer(*(result->input_buffer));
// Note: stream may be deallocated at this point, if this buffer was the
// last reference to it.
if (res != OK) {
ALOGE("%s: RequestThread: Can't return input buffer for frame %d to"
" its stream:%s (%d)", __FUNCTION__,
frameNumber, strerror(-res), res);
}
} else {
ALOGW("%s: Input buffer should be NULL if there is no input"
" buffer sent in the request, skipping input buffer return.",
__FUNCTION__);
}
}
}
void Camera3Device::notify(const camera3_notify_msg *msg) {
ATRACE_CALL();
NotificationListener *listener;
{
Mutex::Autolock l(mOutputLock);
listener = mListener;
}
if (msg == NULL) {
SET_ERR("HAL sent NULL notify message!");
return;
}
switch (msg->type) {
case CAMERA3_MSG_ERROR: {
notifyError(msg->message.error, listener);
break;
}
case CAMERA3_MSG_SHUTTER: {
notifyShutter(msg->message.shutter, listener);
break;
}
default:
SET_ERR("Unknown notify message from HAL: %d",
msg->type);
}
}
void Camera3Device::notifyError(const camera3_error_msg_t &msg,
NotificationListener *listener) {
// Map camera HAL error codes to ICameraDeviceCallback error codes
// Index into this with the HAL error code
static const ICameraDeviceCallbacks::CameraErrorCode
halErrorMap[CAMERA3_MSG_NUM_ERRORS] = {
// 0 = Unused error code
ICameraDeviceCallbacks::ERROR_CAMERA_INVALID_ERROR,
// 1 = CAMERA3_MSG_ERROR_DEVICE
ICameraDeviceCallbacks::ERROR_CAMERA_DEVICE,
// 2 = CAMERA3_MSG_ERROR_REQUEST
ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST,
// 3 = CAMERA3_MSG_ERROR_RESULT
ICameraDeviceCallbacks::ERROR_CAMERA_RESULT,
// 4 = CAMERA3_MSG_ERROR_BUFFER
ICameraDeviceCallbacks::ERROR_CAMERA_BUFFER
};
ICameraDeviceCallbacks::CameraErrorCode errorCode =
((msg.error_code >= 0) &&
(msg.error_code < CAMERA3_MSG_NUM_ERRORS)) ?
halErrorMap[msg.error_code] :
ICameraDeviceCallbacks::ERROR_CAMERA_INVALID_ERROR;
int streamId = 0;
if (msg.error_stream != NULL) {
Camera3Stream *stream =
Camera3Stream::cast(msg.error_stream);
streamId = stream->getId();
}
ALOGV("Camera %d: %s: HAL error, frame %d, stream %d: %d",
mId, __FUNCTION__, msg.frame_number,
streamId, msg.error_code);
CaptureResultExtras resultExtras;
switch (errorCode) {
case ICameraDeviceCallbacks::ERROR_CAMERA_DEVICE:
// SET_ERR calls notifyError
SET_ERR("Camera HAL reported serious device error");
break;
case ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST:
case ICameraDeviceCallbacks::ERROR_CAMERA_RESULT:
case ICameraDeviceCallbacks::ERROR_CAMERA_BUFFER:
{
Mutex::Autolock l(mInFlightLock);
ssize_t idx = mInFlightMap.indexOfKey(msg.frame_number);
if (idx >= 0) {
InFlightRequest &r = mInFlightMap.editValueAt(idx);
r.requestStatus = msg.error_code;
resultExtras = r.resultExtras;
} else {
resultExtras.frameNumber = msg.frame_number;
ALOGE("Camera %d: %s: cannot find in-flight request on "
"frame %" PRId64 " error", mId, __FUNCTION__,
resultExtras.frameNumber);
}
}
if (listener != NULL) {
listener->notifyError(errorCode, resultExtras);
} else {
ALOGE("Camera %d: %s: no listener available", mId, __FUNCTION__);
}
break;
default:
// SET_ERR calls notifyError
SET_ERR("Unknown error message from HAL: %d", msg.error_code);
break;
}
}
void Camera3Device::notifyShutter(const camera3_shutter_msg_t &msg,
NotificationListener *listener) {
ssize_t idx;
// Verify ordering of shutter notifications
{
Mutex::Autolock l(mOutputLock);
// TODO: need to track errors for tighter bounds on expected frame number.
if (msg.frame_number < mNextShutterFrameNumber) {
SET_ERR("Shutter notification out-of-order. Expected "
"notification for frame %d, got frame %d",
mNextShutterFrameNumber, msg.frame_number);
return;
}
mNextShutterFrameNumber = msg.frame_number + 1;
}
// Set timestamp for the request in the in-flight tracking
// and get the request ID to send upstream
{
Mutex::Autolock l(mInFlightLock);
idx = mInFlightMap.indexOfKey(msg.frame_number);
if (idx >= 0) {
InFlightRequest &r = mInFlightMap.editValueAt(idx);
ALOGVV("Camera %d: %s: Shutter fired for frame %d (id %d) at %" PRId64,
mId, __FUNCTION__,
msg.frame_number, r.resultExtras.requestId, msg.timestamp);
// Call listener, if any
if (listener != NULL) {
listener->notifyShutter(r.resultExtras, msg.timestamp);
}
r.shutterTimestamp = msg.timestamp;
// send pending result and buffers
sendCaptureResult(r.pendingMetadata, r.resultExtras,
r.partialResult.collectedResult, msg.frame_number);
returnOutputBuffers(r.pendingOutputBuffers.array(),
r.pendingOutputBuffers.size(), r.shutterTimestamp);
r.pendingOutputBuffers.clear();
removeInFlightRequestIfReadyLocked(idx);
}
}
if (idx < 0) {
SET_ERR("Shutter notification for non-existent frame number %d",
msg.frame_number);
}
}
CameraMetadata Camera3Device::getLatestRequestLocked() {
ALOGV("%s", __FUNCTION__);
CameraMetadata retVal;
if (mRequestThread != NULL) {
retVal = mRequestThread->getLatestRequest();
}
return retVal;
}
/**
* RequestThread inner class methods
*/
Camera3Device::RequestThread::RequestThread(wp<Camera3Device> parent,
sp<StatusTracker> statusTracker,
camera3_device_t *hal3Device) :
Thread(false),
mParent(parent),
mStatusTracker(statusTracker),
mHal3Device(hal3Device),
mId(getId(parent)),
mReconfigured(false),
mDoPause(false),
mPaused(true),
mFrameNumber(0),
mLatestRequestId(NAME_NOT_FOUND),
mCurrentAfTriggerId(0),
mCurrentPreCaptureTriggerId(0),
mRepeatingLastFrameNumber(NO_IN_FLIGHT_REPEATING_FRAMES) {
mStatusId = statusTracker->addComponent();
}
void Camera3Device::RequestThread::setNotifyCallback(
NotificationListener *listener) {
Mutex::Autolock l(mRequestLock);
mListener = listener;
}
void Camera3Device::RequestThread::configurationComplete() {
Mutex::Autolock l(mRequestLock);
mReconfigured = true;
}
status_t Camera3Device::RequestThread::queueRequestList(
List<sp<CaptureRequest> > &requests,
/*out*/
int64_t *lastFrameNumber) {
Mutex::Autolock l(mRequestLock);
for (List<sp<CaptureRequest> >::iterator it = requests.begin(); it != requests.end();
++it) {
mRequestQueue.push_back(*it);
}
if (lastFrameNumber != NULL) {
*lastFrameNumber = mFrameNumber + mRequestQueue.size() - 1;
ALOGV("%s: requestId %d, mFrameNumber %" PRId32 ", lastFrameNumber %" PRId64 ".",
__FUNCTION__, (*(requests.begin()))->mResultExtras.requestId, mFrameNumber,
*lastFrameNumber);
}
unpauseForNewRequests();
return OK;
}
status_t Camera3Device::RequestThread::queueTrigger(
RequestTrigger trigger[],
size_t count) {
Mutex::Autolock l(mTriggerMutex);
status_t ret;
for (size_t i = 0; i < count; ++i) {
ret = queueTriggerLocked(trigger[i]);
if (ret != OK) {
return ret;
}
}
return OK;
}
int Camera3Device::RequestThread::getId(const wp<Camera3Device> &device) {
sp<Camera3Device> d = device.promote();
if (d != NULL) return d->mId;
return 0;
}
status_t Camera3Device::RequestThread::queueTriggerLocked(
RequestTrigger trigger) {
uint32_t tag = trigger.metadataTag;
ssize_t index = mTriggerMap.indexOfKey(tag);
switch (trigger.getTagType()) {
case TYPE_BYTE:
// fall-through
case TYPE_INT32:
break;
default:
ALOGE("%s: Type not supported: 0x%x", __FUNCTION__,
trigger.getTagType());
return INVALID_OPERATION;
}
/**
* Collect only the latest trigger, since we only have 1 field
* in the request settings per trigger tag, and can't send more than 1
* trigger per request.
*/
if (index != NAME_NOT_FOUND) {
mTriggerMap.editValueAt(index) = trigger;
} else {
mTriggerMap.add(tag, trigger);
}
return OK;
}
status_t Camera3Device::RequestThread::setRepeatingRequests(
const RequestList &requests,
/*out*/
int64_t *lastFrameNumber) {
Mutex::Autolock l(mRequestLock);
if (lastFrameNumber != NULL) {
*lastFrameNumber = mRepeatingLastFrameNumber;
}
mRepeatingRequests.clear();
mRepeatingRequests.insert(mRepeatingRequests.begin(),
requests.begin(), requests.end());
unpauseForNewRequests();
mRepeatingLastFrameNumber = NO_IN_FLIGHT_REPEATING_FRAMES;
return OK;
}
bool Camera3Device::RequestThread::isRepeatingRequestLocked(const sp<CaptureRequest> requestIn) {
if (mRepeatingRequests.empty()) {
return false;
}
int32_t requestId = requestIn->mResultExtras.requestId;
const RequestList &repeatRequests = mRepeatingRequests;
// All repeating requests are guaranteed to have same id so only check first quest
const sp<CaptureRequest> firstRequest = *repeatRequests.begin();
return (firstRequest->mResultExtras.requestId == requestId);
}
status_t Camera3Device::RequestThread::clearRepeatingRequests(/*out*/int64_t *lastFrameNumber) {
Mutex::Autolock l(mRequestLock);
mRepeatingRequests.clear();
if (lastFrameNumber != NULL) {
*lastFrameNumber = mRepeatingLastFrameNumber;
}
mRepeatingLastFrameNumber = NO_IN_FLIGHT_REPEATING_FRAMES;
return OK;
}
status_t Camera3Device::RequestThread::clear(
NotificationListener *listener,
/*out*/int64_t *lastFrameNumber) {
Mutex::Autolock l(mRequestLock);
ALOGV("RequestThread::%s:", __FUNCTION__);
mRepeatingRequests.clear();
// Send errors for all requests pending in the request queue, including
// pending repeating requests
if (listener != NULL) {
for (RequestList::iterator it = mRequestQueue.begin();
it != mRequestQueue.end(); ++it) {
// Set the frame number this request would have had, if it
// had been submitted; this frame number will not be reused.
// The requestId and burstId fields were set when the request was
// submitted originally (in convertMetadataListToRequestListLocked)
(*it)->mResultExtras.frameNumber = mFrameNumber++;
listener->notifyError(ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST,
(*it)->mResultExtras);
}
}
mRequestQueue.clear();
mTriggerMap.clear();
if (lastFrameNumber != NULL) {
*lastFrameNumber = mRepeatingLastFrameNumber;
}
mRepeatingLastFrameNumber = NO_IN_FLIGHT_REPEATING_FRAMES;
return OK;
}
void Camera3Device::RequestThread::setPaused(bool paused) {
Mutex::Autolock l(mPauseLock);
mDoPause = paused;
mDoPauseSignal.signal();
}
status_t Camera3Device::RequestThread::waitUntilRequestProcessed(
int32_t requestId, nsecs_t timeout) {
Mutex::Autolock l(mLatestRequestMutex);
status_t res;
while (mLatestRequestId != requestId) {
nsecs_t startTime = systemTime();
res = mLatestRequestSignal.waitRelative(mLatestRequestMutex, timeout);
if (res != OK) return res;
timeout -= (systemTime() - startTime);
}
return OK;
}
void Camera3Device::RequestThread::requestExit() {
// Call parent to set up shutdown
Thread::requestExit();
// The exit from any possible waits
mDoPauseSignal.signal();
mRequestSignal.signal();
}
bool Camera3Device::RequestThread::threadLoop() {
status_t res;
// Handle paused state.
if (waitIfPaused()) {
return true;
}
// Get work to do
sp<CaptureRequest> nextRequest = waitForNextRequest();
if (nextRequest == NULL) {
return true;
}
// Create request to HAL
camera3_capture_request_t request = camera3_capture_request_t();
request.frame_number = nextRequest->mResultExtras.frameNumber;
Vector<camera3_stream_buffer_t> outputBuffers;
// Get the request ID, if any
int requestId;
camera_metadata_entry_t requestIdEntry =
nextRequest->mSettings.find(ANDROID_REQUEST_ID);
if (requestIdEntry.count > 0) {
requestId = requestIdEntry.data.i32[0];
} else {
ALOGW("%s: Did not have android.request.id set in the request",
__FUNCTION__);
requestId = NAME_NOT_FOUND;
}
// Insert any queued triggers (before metadata is locked)
int32_t triggerCount;
res = insertTriggers(nextRequest);
if (res < 0) {
SET_ERR("RequestThread: Unable to insert triggers "
"(capture request %d, HAL device: %s (%d)",
request.frame_number, strerror(-res), res);
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return false;
}
triggerCount = res;
bool triggersMixedIn = (triggerCount > 0 || mPrevTriggers > 0);
// If the request is the same as last, or we had triggers last time
if (mPrevRequest != nextRequest || triggersMixedIn) {
/**
* HAL workaround:
* Insert a dummy trigger ID if a trigger is set but no trigger ID is
*/
res = addDummyTriggerIds(nextRequest);
if (res != OK) {
SET_ERR("RequestThread: Unable to insert dummy trigger IDs "
"(capture request %d, HAL device: %s (%d)",
request.frame_number, strerror(-res), res);
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return false;
}
/**
* The request should be presorted so accesses in HAL
* are O(logn). Sidenote, sorting a sorted metadata is nop.
*/
nextRequest->mSettings.sort();
request.settings = nextRequest->mSettings.getAndLock();
mPrevRequest = nextRequest;
ALOGVV("%s: Request settings are NEW", __FUNCTION__);
IF_ALOGV() {
camera_metadata_ro_entry_t e = camera_metadata_ro_entry_t();
find_camera_metadata_ro_entry(
request.settings,
ANDROID_CONTROL_AF_TRIGGER,
&e
);
if (e.count > 0) {
ALOGV("%s: Request (frame num %d) had AF trigger 0x%x",
__FUNCTION__,
request.frame_number,
e.data.u8[0]);
}
}
} else {
// leave request.settings NULL to indicate 'reuse latest given'
ALOGVV("%s: Request settings are REUSED",
__FUNCTION__);
}
camera3_stream_buffer_t inputBuffer;
uint32_t totalNumBuffers = 0;
// Fill in buffers
if (nextRequest->mInputStream != NULL) {
request.input_buffer = &inputBuffer;
res = nextRequest->mInputStream->getInputBuffer(&inputBuffer);
if (res != OK) {
// Can't get input buffer from gralloc queue - this could be due to
// disconnected queue or other producer misbehavior, so not a fatal
// error
ALOGE("RequestThread: Can't get input buffer, skipping request:"
" %s (%d)", strerror(-res), res);
Mutex::Autolock l(mRequestLock);
if (mListener != NULL) {
mListener->notifyError(
ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST,
nextRequest->mResultExtras);
}
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return true;
}
totalNumBuffers += 1;
} else {
request.input_buffer = NULL;
}
outputBuffers.insertAt(camera3_stream_buffer_t(), 0,
nextRequest->mOutputStreams.size());
request.output_buffers = outputBuffers.array();
for (size_t i = 0; i < nextRequest->mOutputStreams.size(); i++) {
res = nextRequest->mOutputStreams.editItemAt(i)->
getBuffer(&outputBuffers.editItemAt(i));
if (res != OK) {
// Can't get output buffer from gralloc queue - this could be due to
// abandoned queue or other consumer misbehavior, so not a fatal
// error
ALOGE("RequestThread: Can't get output buffer, skipping request:"
" %s (%d)", strerror(-res), res);
Mutex::Autolock l(mRequestLock);
if (mListener != NULL) {
mListener->notifyError(
ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST,
nextRequest->mResultExtras);
}
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return true;
}
request.num_output_buffers++;
}
totalNumBuffers += request.num_output_buffers;
// Log request in the in-flight queue
sp<Camera3Device> parent = mParent.promote();
if (parent == NULL) {
// Should not happen, and nowhere to send errors to, so just log it
CLOGE("RequestThread: Parent is gone");
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return false;
}
res = parent->registerInFlight(request.frame_number,
totalNumBuffers, nextRequest->mResultExtras,
/*hasInput*/request.input_buffer != NULL);
ALOGVV("%s: registered in flight requestId = %" PRId32 ", frameNumber = %" PRId64
", burstId = %" PRId32 ".",
__FUNCTION__,
nextRequest->mResultExtras.requestId, nextRequest->mResultExtras.frameNumber,
nextRequest->mResultExtras.burstId);
if (res != OK) {
SET_ERR("RequestThread: Unable to register new in-flight request:"
" %s (%d)", strerror(-res), res);
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return false;
}
// Inform waitUntilRequestProcessed thread of a new request ID
{
Mutex::Autolock al(mLatestRequestMutex);
mLatestRequestId = requestId;
mLatestRequestSignal.signal();
}
// Submit request and block until ready for next one
ATRACE_ASYNC_BEGIN("frame capture", request.frame_number);
ATRACE_BEGIN("camera3->process_capture_request");
res = mHal3Device->ops->process_capture_request(mHal3Device, &request);
ATRACE_END();
if (res != OK) {
// Should only get a failure here for malformed requests or device-level
// errors, so consider all errors fatal. Bad metadata failures should
// come through notify.
SET_ERR("RequestThread: Unable to submit capture request %d to HAL"
" device: %s (%d)", request.frame_number, strerror(-res), res);
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return false;
}
// Update the latest request sent to HAL
if (request.settings != NULL) { // Don't update them if they were unchanged
Mutex::Autolock al(mLatestRequestMutex);
camera_metadata_t* cloned = clone_camera_metadata(request.settings);
mLatestRequest.acquire(cloned);
}
if (request.settings != NULL) {
nextRequest->mSettings.unlock(request.settings);
}
// Remove any previously queued triggers (after unlock)
res = removeTriggers(mPrevRequest);
if (res != OK) {
SET_ERR("RequestThread: Unable to remove triggers "
"(capture request %d, HAL device: %s (%d)",
request.frame_number, strerror(-res), res);
return false;
}
mPrevTriggers = triggerCount;
return true;
}
CameraMetadata Camera3Device::RequestThread::getLatestRequest() const {
Mutex::Autolock al(mLatestRequestMutex);
ALOGV("RequestThread::%s", __FUNCTION__);
return mLatestRequest;
}
void Camera3Device::RequestThread::cleanUpFailedRequest(
camera3_capture_request_t &request,
sp<CaptureRequest> &nextRequest,
Vector<camera3_stream_buffer_t> &outputBuffers) {
if (request.settings != NULL) {
nextRequest->mSettings.unlock(request.settings);
}
if (request.input_buffer != NULL) {
request.input_buffer->status = CAMERA3_BUFFER_STATUS_ERROR;
nextRequest->mInputStream->returnInputBuffer(*(request.input_buffer));
}
for (size_t i = 0; i < request.num_output_buffers; i++) {
outputBuffers.editItemAt(i).status = CAMERA3_BUFFER_STATUS_ERROR;
nextRequest->mOutputStreams.editItemAt(i)->returnBuffer(
outputBuffers[i], 0);
}
}
sp<Camera3Device::CaptureRequest>
Camera3Device::RequestThread::waitForNextRequest() {
status_t res;
sp<CaptureRequest> nextRequest;
// Optimized a bit for the simple steady-state case (single repeating
// request), to avoid putting that request in the queue temporarily.
Mutex::Autolock l(mRequestLock);
while (mRequestQueue.empty()) {
if (!mRepeatingRequests.empty()) {
// Always atomically enqueue all requests in a repeating request
// list. Guarantees a complete in-sequence set of captures to
// application.
const RequestList &requests = mRepeatingRequests;
RequestList::const_iterator firstRequest =
requests.begin();
nextRequest = *firstRequest;
mRequestQueue.insert(mRequestQueue.end(),
++firstRequest,
requests.end());
// No need to wait any longer
mRepeatingLastFrameNumber = mFrameNumber + requests.size() - 1;
break;
}
res = mRequestSignal.waitRelative(mRequestLock, kRequestTimeout);
if ((mRequestQueue.empty() && mRepeatingRequests.empty()) ||
exitPending()) {
Mutex::Autolock pl(mPauseLock);
if (mPaused == false) {
ALOGV("%s: RequestThread: Going idle", __FUNCTION__);
mPaused = true;
// Let the tracker know
sp<StatusTracker> statusTracker = mStatusTracker.promote();
if (statusTracker != 0) {
statusTracker->markComponentIdle(mStatusId, Fence::NO_FENCE);
}
}
// Stop waiting for now and let thread management happen
return NULL;
}
}
if (nextRequest == NULL) {
// Don't have a repeating request already in hand, so queue
// must have an entry now.
RequestList::iterator firstRequest =
mRequestQueue.begin();
nextRequest = *firstRequest;
mRequestQueue.erase(firstRequest);
}
// In case we've been unpaused by setPaused clearing mDoPause, need to
// update internal pause state (capture/setRepeatingRequest unpause
// directly).
Mutex::Autolock pl(mPauseLock);
if (mPaused) {
ALOGV("%s: RequestThread: Unpaused", __FUNCTION__);
sp<StatusTracker> statusTracker = mStatusTracker.promote();
if (statusTracker != 0) {
statusTracker->markComponentActive(mStatusId);
}
}
mPaused = false;
// Check if we've reconfigured since last time, and reset the preview
// request if so. Can't use 'NULL request == repeat' across configure calls.
if (mReconfigured) {
mPrevRequest.clear();
mReconfigured = false;
}
if (nextRequest != NULL) {
nextRequest->mResultExtras.frameNumber = mFrameNumber++;
nextRequest->mResultExtras.afTriggerId = mCurrentAfTriggerId;
nextRequest->mResultExtras.precaptureTriggerId = mCurrentPreCaptureTriggerId;
}
return nextRequest;
}
bool Camera3Device::RequestThread::waitIfPaused() {
status_t res;
Mutex::Autolock l(mPauseLock);
while (mDoPause) {
if (mPaused == false) {
mPaused = true;
ALOGV("%s: RequestThread: Paused", __FUNCTION__);
// Let the tracker know
sp<StatusTracker> statusTracker = mStatusTracker.promote();
if (statusTracker != 0) {
statusTracker->markComponentIdle(mStatusId, Fence::NO_FENCE);
}
}
res = mDoPauseSignal.waitRelative(mPauseLock, kRequestTimeout);
if (res == TIMED_OUT || exitPending()) {
return true;
}
}
// We don't set mPaused to false here, because waitForNextRequest needs
// to further manage the paused state in case of starvation.
return false;
}
void Camera3Device::RequestThread::unpauseForNewRequests() {
// With work to do, mark thread as unpaused.
// If paused by request (setPaused), don't resume, to avoid
// extra signaling/waiting overhead to waitUntilPaused
mRequestSignal.signal();
Mutex::Autolock p(mPauseLock);
if (!mDoPause) {
ALOGV("%s: RequestThread: Going active", __FUNCTION__);
if (mPaused) {
sp<StatusTracker> statusTracker = mStatusTracker.promote();
if (statusTracker != 0) {
statusTracker->markComponentActive(mStatusId);
}
}
mPaused = false;
}
}
void Camera3Device::RequestThread::setErrorState(const char *fmt, ...) {
sp<Camera3Device> parent = mParent.promote();
if (parent != NULL) {
va_list args;
va_start(args, fmt);
parent->setErrorStateV(fmt, args);
va_end(args);
}
}
status_t Camera3Device::RequestThread::insertTriggers(
const sp<CaptureRequest> &request) {
Mutex::Autolock al(mTriggerMutex);
sp<Camera3Device> parent = mParent.promote();
if (parent == NULL) {
CLOGE("RequestThread: Parent is gone");
return DEAD_OBJECT;
}
CameraMetadata &metadata = request->mSettings;
size_t count = mTriggerMap.size();
for (size_t i = 0; i < count; ++i) {
RequestTrigger trigger = mTriggerMap.valueAt(i);
uint32_t tag = trigger.metadataTag;
if (tag == ANDROID_CONTROL_AF_TRIGGER_ID || tag == ANDROID_CONTROL_AE_PRECAPTURE_ID) {
bool isAeTrigger = (trigger.metadataTag == ANDROID_CONTROL_AE_PRECAPTURE_ID);
uint32_t triggerId = static_cast<uint32_t>(trigger.entryValue);
if (isAeTrigger) {
request->mResultExtras.precaptureTriggerId = triggerId;
mCurrentPreCaptureTriggerId = triggerId;
} else {
request->mResultExtras.afTriggerId = triggerId;
mCurrentAfTriggerId = triggerId;
}
if (parent->mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
continue; // Trigger ID tag is deprecated since device HAL 3.2
}
}
camera_metadata_entry entry = metadata.find(tag);
if (entry.count > 0) {
/**
* Already has an entry for this trigger in the request.
* Rewrite it with our requested trigger value.
*/
RequestTrigger oldTrigger = trigger;
oldTrigger.entryValue = entry.data.u8[0];
mTriggerReplacedMap.add(tag, oldTrigger);
} else {
/**
* More typical, no trigger entry, so we just add it
*/
mTriggerRemovedMap.add(tag, trigger);
}
status_t res;
switch (trigger.getTagType()) {
case TYPE_BYTE: {
uint8_t entryValue = static_cast<uint8_t>(trigger.entryValue);
res = metadata.update(tag,
&entryValue,
/*count*/1);
break;
}
case TYPE_INT32:
res = metadata.update(tag,
&trigger.entryValue,
/*count*/1);
break;
default:
ALOGE("%s: Type not supported: 0x%x",
__FUNCTION__,
trigger.getTagType());
return INVALID_OPERATION;
}
if (res != OK) {
ALOGE("%s: Failed to update request metadata with trigger tag %s"
", value %d", __FUNCTION__, trigger.getTagName(),
trigger.entryValue);
return res;
}
ALOGV("%s: Mixed in trigger %s, value %d", __FUNCTION__,
trigger.getTagName(),
trigger.entryValue);
}
mTriggerMap.clear();
return count;
}
status_t Camera3Device::RequestThread::removeTriggers(
const sp<CaptureRequest> &request) {
Mutex::Autolock al(mTriggerMutex);
CameraMetadata &metadata = request->mSettings;
/**
* Replace all old entries with their old values.
*/
for (size_t i = 0; i < mTriggerReplacedMap.size(); ++i) {
RequestTrigger trigger = mTriggerReplacedMap.valueAt(i);
status_t res;
uint32_t tag = trigger.metadataTag;
switch (trigger.getTagType()) {
case TYPE_BYTE: {
uint8_t entryValue = static_cast<uint8_t>(trigger.entryValue);
res = metadata.update(tag,
&entryValue,
/*count*/1);
break;
}
case TYPE_INT32:
res = metadata.update(tag,
&trigger.entryValue,
/*count*/1);
break;
default:
ALOGE("%s: Type not supported: 0x%x",
__FUNCTION__,
trigger.getTagType());
return INVALID_OPERATION;
}
if (res != OK) {
ALOGE("%s: Failed to restore request metadata with trigger tag %s"
", trigger value %d", __FUNCTION__,
trigger.getTagName(), trigger.entryValue);
return res;
}
}
mTriggerReplacedMap.clear();
/**
* Remove all new entries.
*/
for (size_t i = 0; i < mTriggerRemovedMap.size(); ++i) {
RequestTrigger trigger = mTriggerRemovedMap.valueAt(i);
status_t res = metadata.erase(trigger.metadataTag);
if (res != OK) {
ALOGE("%s: Failed to erase metadata with trigger tag %s"
", trigger value %d", __FUNCTION__,
trigger.getTagName(), trigger.entryValue);
return res;
}
}
mTriggerRemovedMap.clear();
return OK;
}
status_t Camera3Device::RequestThread::addDummyTriggerIds(
const sp<CaptureRequest> &request) {
// Trigger ID 0 has special meaning in the HAL2 spec, so avoid it here
static const int32_t dummyTriggerId = 1;
status_t res;
CameraMetadata &metadata = request->mSettings;
// If AF trigger is active, insert a dummy AF trigger ID if none already
// exists
camera_metadata_entry afTrigger = metadata.find(ANDROID_CONTROL_AF_TRIGGER);
camera_metadata_entry afId = metadata.find(ANDROID_CONTROL_AF_TRIGGER_ID);
if (afTrigger.count > 0 &&
afTrigger.data.u8[0] != ANDROID_CONTROL_AF_TRIGGER_IDLE &&
afId.count == 0) {
res = metadata.update(ANDROID_CONTROL_AF_TRIGGER_ID, &dummyTriggerId, 1);
if (res != OK) return res;
}
// If AE precapture trigger is active, insert a dummy precapture trigger ID
// if none already exists
camera_metadata_entry pcTrigger =
metadata.find(ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER);
camera_metadata_entry pcId = metadata.find(ANDROID_CONTROL_AE_PRECAPTURE_ID);
if (pcTrigger.count > 0 &&
pcTrigger.data.u8[0] != ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER_IDLE &&
pcId.count == 0) {
res = metadata.update(ANDROID_CONTROL_AE_PRECAPTURE_ID,
&dummyTriggerId, 1);
if (res != OK) return res;
}
return OK;
}
/**
* Static callback forwarding methods from HAL to instance
*/
void Camera3Device::sProcessCaptureResult(const camera3_callback_ops *cb,
const camera3_capture_result *result) {
Camera3Device *d =
const_cast<Camera3Device*>(static_cast<const Camera3Device*>(cb));
d->processCaptureResult(result);
}
void Camera3Device::sNotify(const camera3_callback_ops *cb,
const camera3_notify_msg *msg) {
Camera3Device *d =
const_cast<Camera3Device*>(static_cast<const Camera3Device*>(cb));
d->notify(msg);
}
}; // namespace android