/*
* 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 <utils/Log.h>
#include <utils/Trace.h>
#include <utils/Timers.h>
#include "Camera3Device.h"
#include "camera3/Camera3OutputStream.h"
#include "camera3/Camera3InputStream.h"
using namespace android::camera3;
namespace android {
Camera3Device::Camera3Device(int id):
mId(id),
mHal3Device(NULL),
mStatus(STATUS_UNINITIALIZED),
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(camera_module_t *module)
{
ATRACE_CALL();
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;
res = module->common.methods->open(&module->common, deviceName.string(),
reinterpret_cast<hw_device_t**>(&device));
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 is not version %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 = module->get_camera_info(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).",
device->common.version, info.device_version);
device->common.close(&device->common);
return BAD_VALUE;
}
/** Initialize device with callback functions */
res = device->ops->initialize(device, this);
if (res != OK) {
SET_ERR_L("Unable to initialize HAL device: %s (%d)",
strerror(-res), res);
device->common.close(&device->common);
return BAD_VALUE;
}
/** Get vendor metadata tags */
mVendorTagOps.get_camera_vendor_section_name = NULL;
device->ops->get_metadata_vendor_tag_ops(device, &mVendorTagOps);
if (mVendorTagOps.get_camera_vendor_section_name != NULL) {
res = set_camera_metadata_vendor_tag_ops(&mVendorTagOps);
if (res != OK) {
SET_ERR_L("Unable to set tag ops: %s (%d)",
strerror(-res), res);
device->common.close(&device->common);
return res;
}
}
/** Start up request queue thread */
mRequestThread = new RequestThread(this, 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 */
mDeviceInfo = info.static_camera_characteristics;
mHal3Device = device;
mStatus = STATUS_IDLE;
mNextStreamId = 0;
return OK;
}
status_t Camera3Device::disconnect() {
ATRACE_CALL();
Mutex::Autolock l(mLock);
ALOGV("%s: E", __FUNCTION__);
status_t res;
if (mStatus == STATUS_UNINITIALIZED) return OK;
if (mStatus == STATUS_ACTIVE ||
(mStatus == STATUS_ERROR && mRequestThread != NULL)) {
res = mRequestThread->clearRepeatingRequests();
if (res != OK) {
SET_ERR_L("Can't stop streaming");
return res;
}
res = waitUntilDrainedLocked();
if (res != OK) {
SET_ERR_L("Timeout waiting for HAL to drain");
return res;
}
}
assert(mStatus == STATUS_IDLE || mStatus == STATUS_ERROR);
if (mRequestThread != NULL) {
mRequestThread->requestExit();
}
mOutputStreams.clear();
mInputStream.clear();
if (mRequestThread != NULL) {
mRequestThread->join();
mRequestThread.clear();
}
if (mHal3Device != NULL) {
mHal3Device->common.close(&mHal3Device->common);
mHal3Device = NULL;
}
mStatus = STATUS_UNINITIALIZED;
ALOGV("%s: X", __FUNCTION__);
return OK;
}
status_t Camera3Device::dump(int fd, const Vector<String16> &args) {
ATRACE_CALL();
(void)args;
String8 lines;
const char *status =
mStatus == STATUS_ERROR ? "ERROR" :
mStatus == STATUS_UNINITIALIZED ? "UNINITIALIZED" :
mStatus == STATUS_IDLE ? "IDLE" :
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: %lld, metadata"
" arrived: %s, buffers left: %d\n", mInFlightMap.keyAt(i),
r.captureTimestamp, r.haveResultMetadata ? "true" : "false",
r.numBuffersLeft);
}
}
write(fd, lines.string(), lines.size());
if (mHal3Device != NULL) {
lines = String8(" HAL device dump:\n");
write(fd, lines.string(), lines.size());
mHal3Device->ops->dump(mHal3Device, fd);
}
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::capture(CameraMetadata &request) {
ATRACE_CALL();
Mutex::Autolock l(mLock);
// TODO: take ownership of the request
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_IDLE:
case STATUS_ACTIVE:
// OK
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
sp<CaptureRequest> newRequest = setUpRequestLocked(request);
if (newRequest == NULL) {
CLOGE("Can't create capture request");
return BAD_VALUE;
}
return mRequestThread->queueRequest(newRequest);
}
status_t Camera3Device::setStreamingRequest(const CameraMetadata &request) {
ATRACE_CALL();
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_IDLE:
case STATUS_ACTIVE:
// OK
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
sp<CaptureRequest> newRepeatingRequest = setUpRequestLocked(request);
if (newRepeatingRequest == NULL) {
CLOGE("Can't create repeating request");
return BAD_VALUE;
}
RequestList newRepeatingRequests;
newRepeatingRequests.push_back(newRepeatingRequest);
return mRequestThread->setRepeatingRequests(newRepeatingRequests);
}
sp<Camera3Device::CaptureRequest> Camera3Device::setUpRequestLocked(
const CameraMetadata &request) {
status_t res;
if (mStatus == STATUS_IDLE) {
res = configureStreamsLocked();
if (res != OK) {
SET_ERR_L("Can't set up streams: %s (%d)", strerror(-res), res);
return NULL;
}
}
sp<CaptureRequest> newRequest = createCaptureRequest(request);
return newRequest;
}
status_t Camera3Device::clearStreamingRequest() {
ATRACE_CALL();
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_IDLE:
case STATUS_ACTIVE:
// OK
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
return mRequestThread->clearRepeatingRequests();
}
status_t Camera3Device::waitUntilRequestReceived(int32_t requestId, nsecs_t timeout) {
ATRACE_CALL();
return mRequestThread->waitUntilRequestProcessed(requestId, timeout);
}
status_t Camera3Device::createInputStream(
uint32_t width, uint32_t height, int format, int *id) {
ATRACE_CALL();
Mutex::Autolock l(mLock);
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_IDLE:
// OK
break;
case STATUS_ACTIVE:
ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
mRequestThread->setPaused(true);
res = waitUntilDrainedLocked();
if (res != OK) {
ALOGE("%s: Can't pause captures to reconfigure streams!",
__FUNCTION__);
mStatus = STATUS_ERROR;
return res;
}
wasActive = true;
break;
default:
ALOGE("%s: Unexpected status: %d", __FUNCTION__, mStatus);
return INVALID_OPERATION;
}
assert(mStatus == STATUS_IDLE);
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);
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;
}
mRequestThread->setPaused(false);
}
return OK;
}
status_t Camera3Device::createZslStream(
uint32_t width, uint32_t height,
int depth,
/*out*/
int *id,
sp<Camera3ZslStream>* zslStream) {
ATRACE_CALL();
Mutex::Autolock l(mLock);
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_IDLE:
// OK
break;
case STATUS_ACTIVE:
ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
mRequestThread->setPaused(true);
res = waitUntilDrainedLocked();
if (res != OK) {
ALOGE("%s: Can't pause captures to reconfigure streams!",
__FUNCTION__);
mStatus = STATUS_ERROR;
return res;
}
wasActive = true;
break;
default:
ALOGE("%s: Unexpected status: %d", __FUNCTION__, mStatus);
return INVALID_OPERATION;
}
assert(mStatus == STATUS_IDLE);
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);
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;
*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;
}
mRequestThread->setPaused(false);
}
return OK;
}
status_t Camera3Device::createStream(sp<ANativeWindow> consumer,
uint32_t width, uint32_t height, int format, size_t size, int *id) {
ATRACE_CALL();
Mutex::Autolock l(mLock);
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_IDLE:
// OK
break;
case STATUS_ACTIVE:
ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
mRequestThread->setPaused(true);
res = waitUntilDrainedLocked();
if (res != OK) {
ALOGE("%s: Can't pause captures to reconfigure streams!",
__FUNCTION__);
return res;
}
wasActive = true;
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
assert(mStatus == STATUS_IDLE);
sp<Camera3OutputStream> newStream;
if (format == HAL_PIXEL_FORMAT_BLOB) {
newStream = new Camera3OutputStream(mNextStreamId, consumer,
width, height, size, format);
} else {
newStream = new Camera3OutputStream(mNextStreamId, consumer,
width, height, format);
}
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++;
// 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;
}
mRequestThread->setPaused(false);
}
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 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_IDLE:
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 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_IDLE:
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 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_IDLE) {
ALOGV("%s: Camera %d: Device not idle", __FUNCTION__, mId);
return -EBUSY;
}
sp<Camera3StreamInterface> deletedStream;
if (mInputStream != NULL && id == mInputStream->getId()) {
deletedStream = mInputStream;
mInputStream.clear();
} else {
ssize_t idx = mOutputStreams.indexOfKey(id);
if (idx == NAME_NOT_FOUND) {
CLOGE("Stream %d does not exist", id);
return BAD_VALUE;
}
deletedStream = mOutputStreams.editValueAt(idx);
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);
return res;
}
status_t Camera3Device::deleteReprocessStream(int id) {
ATRACE_CALL();
(void)id;
CLOGE("Unimplemented");
return INVALID_OPERATION;
}
status_t Camera3Device::createDefaultRequest(int templateId,
CameraMetadata *request) {
ATRACE_CALL();
ALOGV("%s: E", __FUNCTION__);
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_IDLE:
case STATUS_ACTIVE:
// OK
break;
default:
SET_ERR_L("Unexpected status: %d", mStatus);
return INVALID_OPERATION;
}
const camera_metadata_t *rawRequest;
rawRequest = mHal3Device->ops->construct_default_request_settings(
mHal3Device, templateId);
if (rawRequest == NULL) {
SET_ERR_L("HAL is unable to construct default settings for template %d",
templateId);
return DEAD_OBJECT;
}
*request = rawRequest;
return OK;
}
status_t Camera3Device::waitUntilDrained() {
ATRACE_CALL();
Mutex::Autolock l(mLock);
return waitUntilDrainedLocked();
}
status_t Camera3Device::waitUntilDrainedLocked() {
ATRACE_CALL();
status_t res;
switch (mStatus) {
case STATUS_UNINITIALIZED:
case STATUS_IDLE:
ALOGV("%s: Already idle", __FUNCTION__);
return OK;
case STATUS_ERROR:
case STATUS_ACTIVE:
// Need to shut down
break;
default:
SET_ERR_L("Unexpected status: %d",mStatus);
return INVALID_OPERATION;
}
if (mRequestThread != NULL) {
res = mRequestThread->waitUntilPaused(kShutdownTimeout);
if (res != OK) {
SET_ERR_L("Can't stop request thread in %f seconds!",
kShutdownTimeout/1e9);
return res;
}
}
if (mInputStream != NULL) {
res = mInputStream->waitUntilIdle(kShutdownTimeout);
if (res != OK) {
SET_ERR_L("Can't idle input stream %d in %f seconds!",
mInputStream->getId(), kShutdownTimeout/1e9);
return res;
}
}
for (size_t i = 0; i < mOutputStreams.size(); i++) {
res = mOutputStreams.editValueAt(i)->waitUntilIdle(kShutdownTimeout);
if (res != OK) {
SET_ERR_L("Can't idle output stream %d in %f seconds!",
mOutputStreams.keyAt(i), kShutdownTimeout/1e9);
return res;
}
}
if (mStatus != STATUS_ERROR) {
mStatus = STATUS_IDLE;
}
return OK;
}
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;
return OK;
}
status_t Camera3Device::waitForNextFrame(nsecs_t timeout) {
ATRACE_CALL();
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 %lld ns: %s (%d)",
__FUNCTION__, mId, timeout, strerror(-res), res);
return res;
}
}
return OK;
}
status_t Camera3Device::getNextFrame(CameraMetadata *frame) {
ATRACE_CALL();
Mutex::Autolock l(mOutputLock);
if (mResultQueue.empty()) {
return NOT_ENOUGH_DATA;
}
CameraMetadata &result = *(mResultQueue.begin());
frame->acquire(result);
mResultQueue.erase(mResultQueue.begin());
return OK;
}
status_t Camera3Device::triggerAutofocus(uint32_t id) {
ATRACE_CALL();
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();
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();
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;
}
/**
* 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.u8[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.u8[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_IDLE) {
CLOGE("Not idle");
return INVALID_OPERATION;
}
// Start configuring the streams
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.
res = mHal3Device->ops->configure_streams(mHal3Device, &config);
if (res != OK) {
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();
// Finish configuring the streams lazily on first reference
mStatus = STATUS_ACTIVE;
return OK;
}
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;
}
/**
* In-flight request management
*/
status_t Camera3Device::registerInFlight(int32_t frameNumber,
int32_t numBuffers) {
ATRACE_CALL();
Mutex::Autolock l(mInFlightLock);
ssize_t res;
res = mInFlightMap.add(frameNumber, InFlightRequest(numBuffers));
if (res < 0) return res;
return OK;
}
/**
* 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) {
SET_ERR("No result data provided by HAL for frame %d",
frameNumber);
return;
}
// Get capture timestamp from list of in-flight requests, where it was added
// by the shutter notification for this frame. Then update the in-flight
// status and remove the in-flight entry if all result data has been
// received.
nsecs_t timestamp = 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);
timestamp = request.captureTimestamp;
if (timestamp == 0) {
SET_ERR("Called before shutter notify for frame %d",
frameNumber);
return;
}
if (result->result != NULL) {
if (request.haveResultMetadata) {
SET_ERR("Called multiple times with metadata for frame %d",
frameNumber);
return;
}
request.haveResultMetadata = true;
}
request.numBuffersLeft -= result->num_output_buffers;
if (request.numBuffersLeft < 0) {
SET_ERR("Too many buffers returned for frame %d",
frameNumber);
return;
}
if (request.haveResultMetadata && request.numBuffersLeft == 0) {
mInFlightMap.removeItemsAt(idx, 1);
}
// 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: %d", mInFlightMap.size());
}
}
AlgState cur3aState;
AlgState new3aState;
int32_t aeTriggerId = 0;
int32_t afTriggerId = 0;
NotificationListener *listener = NULL;
// Process the result metadata, if provided
if (result->result != NULL) {
Mutex::Autolock l(mOutputLock);
if (frameNumber != mNextResultFrameNumber) {
SET_ERR("Out-of-order capture result metadata submitted! "
"(got frame number %d, expecting %d)",
frameNumber, mNextResultFrameNumber);
return;
}
mNextResultFrameNumber++;
CameraMetadata &captureResult =
*mResultQueue.insert(mResultQueue.end(), CameraMetadata());
captureResult = result->result;
if (captureResult.update(ANDROID_REQUEST_FRAME_COUNT,
(int32_t*)&frameNumber, 1) != OK) {
SET_ERR("Failed to set frame# in metadata (%d)",
frameNumber);
} else {
ALOGVV("%s: Camera %d: Set frame# in metadata (%d)",
__FUNCTION__, mId, frameNumber);
}
// Check that there's a timestamp in the result metadata
camera_metadata_entry entry =
captureResult.find(ANDROID_SENSOR_TIMESTAMP);
if (entry.count == 0) {
SET_ERR("No timestamp provided by HAL for frame %d!",
frameNumber);
}
if (timestamp != entry.data.i64[0]) {
SET_ERR("Timestamp mismatch between shutter notify and result"
" metadata for frame %d (%lld vs %lld respectively)",
frameNumber, timestamp, entry.data.i64[0]);
}
// Get 3A states from result metadata
entry = captureResult.find(ANDROID_CONTROL_AE_STATE);
if (entry.count == 0) {
CLOGE("No AE state provided by HAL for frame %d!",
frameNumber);
} else {
new3aState.aeState =
static_cast<camera_metadata_enum_android_control_ae_state>(
entry.data.u8[0]);
}
entry = captureResult.find(ANDROID_CONTROL_AF_STATE);
if (entry.count == 0) {
CLOGE("No AF state provided by HAL for frame %d!",
frameNumber);
} else {
new3aState.afState =
static_cast<camera_metadata_enum_android_control_af_state>(
entry.data.u8[0]);
}
entry = captureResult.find(ANDROID_CONTROL_AWB_STATE);
if (entry.count == 0) {
CLOGE("No AWB state provided by HAL for frame %d!",
frameNumber);
} else {
new3aState.awbState =
static_cast<camera_metadata_enum_android_control_awb_state>(
entry.data.u8[0]);
}
entry = captureResult.find(ANDROID_CONTROL_AF_TRIGGER_ID);
if (entry.count == 0) {
CLOGE("No AF trigger ID provided by HAL for frame %d!",
frameNumber);
} else {
afTriggerId = entry.data.i32[0];
}
entry = captureResult.find(ANDROID_CONTROL_AE_PRECAPTURE_ID);
if (entry.count == 0) {
CLOGE("No AE precapture trigger ID provided by HAL"
" for frame %d!", frameNumber);
} else {
aeTriggerId = entry.data.i32[0];
}
listener = mListener;
cur3aState = m3AState;
m3AState = new3aState;
} // scope for mOutputLock
// Return completed buffers to their streams with the timestamp
for (size_t i = 0; i < result->num_output_buffers; i++) {
Camera3Stream *stream =
Camera3Stream::cast(result->output_buffers[i].stream);
res = stream->returnBuffer(result->output_buffers[i], timestamp);
// Note: stream may be deallocated at this point, if this buffer was the
// last reference to it.
if (res != OK) {
SET_ERR("Can't return buffer %d for frame %d to its stream: "
" %s (%d)", i, frameNumber, strerror(-res), res);
}
}
// Finally, dispatch any 3A change events to listeners if we got metadata
if (result->result != NULL) {
mResultSignal.signal();
}
if (result->result != NULL && listener != NULL) {
if (new3aState.aeState != cur3aState.aeState) {
ALOGVV("%s: AE state changed from 0x%x to 0x%x",
__FUNCTION__, cur3aState.aeState, new3aState.aeState);
listener->notifyAutoExposure(new3aState.aeState, aeTriggerId);
}
if (new3aState.afState != cur3aState.afState) {
ALOGVV("%s: AF state changed from 0x%x to 0x%x",
__FUNCTION__, cur3aState.afState, new3aState.afState);
listener->notifyAutoFocus(new3aState.afState, afTriggerId);
}
if (new3aState.awbState != cur3aState.awbState) {
listener->notifyAutoWhitebalance(new3aState.awbState, aeTriggerId);
}
}
}
void Camera3Device::notify(const camera3_notify_msg *msg) {
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: {
int streamId = 0;
if (msg->message.error.error_stream != NULL) {
Camera3Stream *stream =
Camera3Stream::cast(
msg->message.error.error_stream);
streamId = stream->getId();
}
if (listener != NULL) {
listener->notifyError(msg->message.error.error_code,
msg->message.error.frame_number, streamId);
}
break;
}
case CAMERA3_MSG_SHUTTER: {
ssize_t idx;
uint32_t frameNumber = msg->message.shutter.frame_number;
nsecs_t timestamp = msg->message.shutter.timestamp;
// Verify ordering of shutter notifications
{
Mutex::Autolock l(mOutputLock);
if (frameNumber != mNextShutterFrameNumber) {
SET_ERR("Shutter notification out-of-order. Expected "
"notification for frame %d, got frame %d",
mNextShutterFrameNumber, frameNumber);
break;
}
mNextShutterFrameNumber++;
}
// Set timestamp for the request in the in-flight tracking
{
Mutex::Autolock l(mInFlightLock);
idx = mInFlightMap.indexOfKey(frameNumber);
if (idx >= 0) {
mInFlightMap.editValueAt(idx).captureTimestamp = timestamp;
}
}
if (idx < 0) {
SET_ERR("Shutter notification for non-existent frame number %d",
frameNumber);
break;
}
// Call listener, if any
if (listener != NULL) {
listener->notifyShutter(frameNumber, timestamp);
}
break;
}
default:
SET_ERR("Unknown notify message from HAL: %d",
msg->type);
}
}
/**
* RequestThread inner class methods
*/
Camera3Device::RequestThread::RequestThread(wp<Camera3Device> parent,
camera3_device_t *hal3Device) :
Thread(false),
mParent(parent),
mHal3Device(hal3Device),
mId(getId(parent)),
mReconfigured(false),
mDoPause(false),
mPaused(true),
mFrameNumber(0),
mLatestRequestId(NAME_NOT_FOUND) {
}
void Camera3Device::RequestThread::configurationComplete() {
Mutex::Autolock l(mRequestLock);
mReconfigured = true;
}
status_t Camera3Device::RequestThread::queueRequest(
sp<CaptureRequest> request) {
Mutex::Autolock l(mRequestLock);
mRequestQueue.push_back(request);
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) {
Mutex::Autolock l(mRequestLock);
mRepeatingRequests.clear();
mRepeatingRequests.insert(mRepeatingRequests.begin(),
requests.begin(), requests.end());
return OK;
}
status_t Camera3Device::RequestThread::clearRepeatingRequests() {
Mutex::Autolock l(mRequestLock);
mRepeatingRequests.clear();
return OK;
}
void Camera3Device::RequestThread::setPaused(bool paused) {
Mutex::Autolock l(mPauseLock);
mDoPause = paused;
mDoPauseSignal.signal();
}
status_t Camera3Device::RequestThread::waitUntilPaused(nsecs_t timeout) {
status_t res;
Mutex::Autolock l(mPauseLock);
while (!mPaused) {
res = mPausedSignal.waitRelative(mPauseLock, timeout);
if (res == TIMED_OUT) {
return res;
}
}
return OK;
}
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;
}
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();
Vector<camera3_stream_buffer_t> outputBuffers;
// 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)",
(mFrameNumber+1), 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) {
/**
* 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__,
mFrameNumber+1,
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;
// Fill in buffers
if (nextRequest->mInputStream != NULL) {
request.input_buffer = &inputBuffer;
res = nextRequest->mInputStream->getInputBuffer(&inputBuffer);
if (res != OK) {
SET_ERR("RequestThread: Can't get input buffer, skipping request:"
" %s (%d)", strerror(-res), res);
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return true;
}
} 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) {
SET_ERR("RequestThread: Can't get output buffer, skipping request:"
"%s (%d)", strerror(-res), res);
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return true;
}
request.num_output_buffers++;
}
request.frame_number = mFrameNumber++;
// Log request in the in-flight queue
sp<Camera3Device> parent = mParent.promote();
if (parent == NULL) {
CLOGE("RequestThread: Parent is gone");
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return false;
}
res = parent->registerInFlight(request.frame_number,
request.num_output_buffers);
if (res != OK) {
SET_ERR("RequestThread: Unable to register new in-flight request:"
" %s (%d)", strerror(-res), res);
cleanUpFailedRequest(request, nextRequest, outputBuffers);
return false;
}
// Submit request and block until ready for next one
res = mHal3Device->ops->process_capture_request(mHal3Device, &request);
if (res != OK) {
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;
}
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;
// Read android.request.id from the request settings metadata
// - inform waitUntilRequestProcessed thread of a new request ID
{
Mutex::Autolock al(mLatestRequestMutex);
camera_metadata_entry_t requestIdEntry =
nextRequest->mSettings.find(ANDROID_REQUEST_ID);
if (requestIdEntry.count > 0) {
mLatestRequestId = requestIdEntry.data.i32[0];
} else {
ALOGW("%s: Did not have android.request.id set in the request",
__FUNCTION__);
mLatestRequestId = NAME_NOT_FOUND;
}
mLatestRequestSignal.signal();
}
// Return input buffer back to framework
if (request.input_buffer != NULL) {
Camera3Stream *stream =
Camera3Stream::cast(request.input_buffer->stream);
res = stream->returnInputBuffer(*(request.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__,
request.frame_number, strerror(-res), res);
// TODO: Report error upstream
}
}
return true;
}
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
break;
}
res = mRequestSignal.waitRelative(mRequestLock, kRequestTimeout);
if (res == TIMED_OUT) {
// Signal that we're paused by starvation
Mutex::Autolock pl(mPauseLock);
if (mPaused == false) {
mPaused = true;
mPausedSignal.signal();
}
// 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);
}
// Not paused
Mutex::Autolock pl(mPauseLock);
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;
}
return nextRequest;
}
bool Camera3Device::RequestThread::waitIfPaused() {
status_t res;
Mutex::Autolock l(mPauseLock);
while (mDoPause) {
// Signal that we're paused by request
if (mPaused == false) {
mPaused = true;
mPausedSignal.signal();
}
res = mDoPauseSignal.waitRelative(mPauseLock, kRequestTimeout);
if (res == TIMED_OUT) {
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::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);
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;
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;
}
/**
* 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