Camera3Device.cpp revision 3ea3fcd0822b2f43d87f1d8f67d7bf145864b201 
1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "Camera3-Device"
18#define ATRACE_TAG ATRACE_TAG_CAMERA
19//#define LOG_NDEBUG 0
20//#define LOG_NNDEBUG 0  // Per-frame verbose logging
21
22#ifdef LOG_NNDEBUG
23#define ALOGVV(...) ALOGV(__VA_ARGS__)
24#else
25#define ALOGVV(...) ((void)0)
26#endif
27
28// Convenience macro for transient errors
29#define CLOGE(fmt, ...) ALOGE("Camera %d: %s: " fmt, mId, __FUNCTION__, \
30            ##__VA_ARGS__)
31
32// Convenience macros for transitioning to the error state
33#define SET_ERR(fmt, ...) setErrorState(   \
34    "%s: " fmt, __FUNCTION__,              \
35    ##__VA_ARGS__)
36#define SET_ERR_L(fmt, ...) setErrorStateLocked( \
37    "%s: " fmt, __FUNCTION__,                    \
38    ##__VA_ARGS__)
39
40#include <inttypes.h>
41
42#include <utils/Log.h>
43#include <utils/Trace.h>
44#include <utils/Timers.h>
45
46#include "utils/CameraTraces.h"
47#include "device3/Camera3Device.h"
48#include "device3/Camera3OutputStream.h"
49#include "device3/Camera3InputStream.h"
50#include "device3/Camera3ZslStream.h"
51#include "device3/Camera3DummyStream.h"
52#include "CameraService.h"
53
54using namespace android::camera3;
55
56namespace android {
57
58Camera3Device::Camera3Device(int id):
59        mId(id),
60        mHal3Device(NULL),
61        mStatus(STATUS_UNINITIALIZED),
62        mUsePartialResult(false),
63        mNumPartialResults(1),
64        mNextResultFrameNumber(0),
65        mNextShutterFrameNumber(0),
66        mListener(NULL)
67{
68    ATRACE_CALL();
69    camera3_callback_ops::notify = &sNotify;
70    camera3_callback_ops::process_capture_result = &sProcessCaptureResult;
71    ALOGV("%s: Created device for camera %d", __FUNCTION__, id);
72}
73
74Camera3Device::~Camera3Device()
75{
76    ATRACE_CALL();
77    ALOGV("%s: Tearing down for camera id %d", __FUNCTION__, mId);
78    disconnect();
79}
80
81int Camera3Device::getId() const {
82    return mId;
83}
84
85/**
86 * CameraDeviceBase interface
87 */
88
89status_t Camera3Device::initialize(camera_module_t *module)
90{
91    ATRACE_CALL();
92    Mutex::Autolock il(mInterfaceLock);
93    Mutex::Autolock l(mLock);
94
95    ALOGV("%s: Initializing device for camera %d", __FUNCTION__, mId);
96    if (mStatus != STATUS_UNINITIALIZED) {
97        CLOGE("Already initialized!");
98        return INVALID_OPERATION;
99    }
100
101    /** Open HAL device */
102
103    status_t res;
104    String8 deviceName = String8::format("%d", mId);
105
106    camera3_device_t *device;
107
108    ATRACE_BEGIN("camera3->open");
109    res = CameraService::filterOpenErrorCode(module->common.methods->open(
110        &module->common, deviceName.string(),
111        reinterpret_cast<hw_device_t**>(&device)));
112    ATRACE_END();
113
114    if (res != OK) {
115        SET_ERR_L("Could not open camera: %s (%d)", strerror(-res), res);
116        return res;
117    }
118
119    /** Cross-check device version */
120    if (device->common.version < CAMERA_DEVICE_API_VERSION_3_0) {
121        SET_ERR_L("Could not open camera: "
122                "Camera device should be at least %x, reports %x instead",
123                CAMERA_DEVICE_API_VERSION_3_0,
124                device->common.version);
125        device->common.close(&device->common);
126        return BAD_VALUE;
127    }
128
129    camera_info info;
130    res = CameraService::filterGetInfoErrorCode(module->get_camera_info(
131        mId, &info));
132    if (res != OK) return res;
133
134    if (info.device_version != device->common.version) {
135        SET_ERR_L("HAL reporting mismatched camera_info version (%x)"
136                " and device version (%x).",
137                info.device_version, device->common.version);
138        device->common.close(&device->common);
139        return BAD_VALUE;
140    }
141
142    /** Initialize device with callback functions */
143
144    ATRACE_BEGIN("camera3->initialize");
145    res = device->ops->initialize(device, this);
146    ATRACE_END();
147
148    if (res != OK) {
149        SET_ERR_L("Unable to initialize HAL device: %s (%d)",
150                strerror(-res), res);
151        device->common.close(&device->common);
152        return BAD_VALUE;
153    }
154
155    /** Start up status tracker thread */
156    mStatusTracker = new StatusTracker(this);
157    res = mStatusTracker->run(String8::format("C3Dev-%d-Status", mId).string());
158    if (res != OK) {
159        SET_ERR_L("Unable to start status tracking thread: %s (%d)",
160                strerror(-res), res);
161        device->common.close(&device->common);
162        mStatusTracker.clear();
163        return res;
164    }
165
166    /** Start up request queue thread */
167
168    mRequestThread = new RequestThread(this, mStatusTracker, device);
169    res = mRequestThread->run(String8::format("C3Dev-%d-ReqQueue", mId).string());
170    if (res != OK) {
171        SET_ERR_L("Unable to start request queue thread: %s (%d)",
172                strerror(-res), res);
173        device->common.close(&device->common);
174        mRequestThread.clear();
175        return res;
176    }
177
178    /** Everything is good to go */
179
180    mDeviceVersion = device->common.version;
181    mDeviceInfo = info.static_camera_characteristics;
182    mHal3Device = device;
183    mStatus = STATUS_UNCONFIGURED;
184    mNextStreamId = 0;
185    mDummyStreamId = NO_STREAM;
186    mNeedConfig = true;
187    mPauseStateNotify = false;
188
189    // Will the HAL be sending in early partial result metadata?
190    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
191        camera_metadata_entry partialResultsCount =
192                mDeviceInfo.find(ANDROID_REQUEST_PARTIAL_RESULT_COUNT);
193        if (partialResultsCount.count > 0) {
194            mNumPartialResults = partialResultsCount.data.i32[0];
195            mUsePartialResult = (mNumPartialResults > 1);
196        }
197    } else {
198        camera_metadata_entry partialResultsQuirk =
199                mDeviceInfo.find(ANDROID_QUIRKS_USE_PARTIAL_RESULT);
200        if (partialResultsQuirk.count > 0 && partialResultsQuirk.data.u8[0] == 1) {
201            mUsePartialResult = true;
202        }
203    }
204
205    return OK;
206}
207
208status_t Camera3Device::disconnect() {
209    ATRACE_CALL();
210    Mutex::Autolock il(mInterfaceLock);
211
212    ALOGV("%s: E", __FUNCTION__);
213
214    status_t res = OK;
215
216    {
217        Mutex::Autolock l(mLock);
218        if (mStatus == STATUS_UNINITIALIZED) return res;
219
220        if (mStatus == STATUS_ACTIVE ||
221                (mStatus == STATUS_ERROR && mRequestThread != NULL)) {
222            res = mRequestThread->clearRepeatingRequests();
223            if (res != OK) {
224                SET_ERR_L("Can't stop streaming");
225                // Continue to close device even in case of error
226            } else {
227                res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
228                if (res != OK) {
229                    SET_ERR_L("Timeout waiting for HAL to drain");
230                    // Continue to close device even in case of error
231                }
232            }
233        }
234
235        if (mStatus == STATUS_ERROR) {
236            CLOGE("Shutting down in an error state");
237        }
238
239        if (mStatusTracker != NULL) {
240            mStatusTracker->requestExit();
241        }
242
243        if (mRequestThread != NULL) {
244            mRequestThread->requestExit();
245        }
246
247        mOutputStreams.clear();
248        mInputStream.clear();
249    }
250
251    // Joining done without holding mLock, otherwise deadlocks may ensue
252    // as the threads try to access parent state
253    if (mRequestThread != NULL && mStatus != STATUS_ERROR) {
254        // HAL may be in a bad state, so waiting for request thread
255        // (which may be stuck in the HAL processCaptureRequest call)
256        // could be dangerous.
257        mRequestThread->join();
258    }
259
260    if (mStatusTracker != NULL) {
261        mStatusTracker->join();
262    }
263
264    {
265        Mutex::Autolock l(mLock);
266
267        mRequestThread.clear();
268        mStatusTracker.clear();
269
270        if (mHal3Device != NULL) {
271            ATRACE_BEGIN("camera3->close");
272            mHal3Device->common.close(&mHal3Device->common);
273            ATRACE_END();
274            mHal3Device = NULL;
275        }
276
277        mStatus = STATUS_UNINITIALIZED;
278    }
279
280    ALOGV("%s: X", __FUNCTION__);
281    return res;
282}
283
284// For dumping/debugging only -
285// try to acquire a lock a few times, eventually give up to proceed with
286// debug/dump operations
287bool Camera3Device::tryLockSpinRightRound(Mutex& lock) {
288    bool gotLock = false;
289    for (size_t i = 0; i < kDumpLockAttempts; ++i) {
290        if (lock.tryLock() == NO_ERROR) {
291            gotLock = true;
292            break;
293        } else {
294            usleep(kDumpSleepDuration);
295        }
296    }
297    return gotLock;
298}
299
300Camera3Device::Size Camera3Device::getMaxJpegResolution() const {
301    int32_t maxJpegWidth = 0, maxJpegHeight = 0;
302    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
303        const int STREAM_CONFIGURATION_SIZE = 4;
304        const int STREAM_FORMAT_OFFSET = 0;
305        const int STREAM_WIDTH_OFFSET = 1;
306        const int STREAM_HEIGHT_OFFSET = 2;
307        const int STREAM_IS_INPUT_OFFSET = 3;
308        camera_metadata_ro_entry_t availableStreamConfigs =
309                mDeviceInfo.find(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
310        if (availableStreamConfigs.count == 0 ||
311                availableStreamConfigs.count % STREAM_CONFIGURATION_SIZE != 0) {
312            return Size(0, 0);
313        }
314
315        // Get max jpeg size (area-wise).
316        for (size_t i=0; i < availableStreamConfigs.count; i+= STREAM_CONFIGURATION_SIZE) {
317            int32_t format = availableStreamConfigs.data.i32[i + STREAM_FORMAT_OFFSET];
318            int32_t width = availableStreamConfigs.data.i32[i + STREAM_WIDTH_OFFSET];
319            int32_t height = availableStreamConfigs.data.i32[i + STREAM_HEIGHT_OFFSET];
320            int32_t isInput = availableStreamConfigs.data.i32[i + STREAM_IS_INPUT_OFFSET];
321            if (isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT
322                    && format == HAL_PIXEL_FORMAT_BLOB &&
323                    (width * height > maxJpegWidth * maxJpegHeight)) {
324                maxJpegWidth = width;
325                maxJpegHeight = height;
326            }
327        }
328    } else {
329        camera_metadata_ro_entry availableJpegSizes =
330                mDeviceInfo.find(ANDROID_SCALER_AVAILABLE_JPEG_SIZES);
331        if (availableJpegSizes.count == 0 || availableJpegSizes.count % 2 != 0) {
332            return Size(0, 0);
333        }
334
335        // Get max jpeg size (area-wise).
336        for (size_t i = 0; i < availableJpegSizes.count; i += 2) {
337            if ((availableJpegSizes.data.i32[i] * availableJpegSizes.data.i32[i + 1])
338                    > (maxJpegWidth * maxJpegHeight)) {
339                maxJpegWidth = availableJpegSizes.data.i32[i];
340                maxJpegHeight = availableJpegSizes.data.i32[i + 1];
341            }
342        }
343    }
344    return Size(maxJpegWidth, maxJpegHeight);
345}
346
347ssize_t Camera3Device::getJpegBufferSize(uint32_t width, uint32_t height) const {
348    // Get max jpeg size (area-wise).
349    Size maxJpegResolution = getMaxJpegResolution();
350    if (maxJpegResolution.width == 0) {
351        ALOGE("%s: Camera %d: Can't find find valid available jpeg sizes in static metadata!",
352                __FUNCTION__, mId);
353        return BAD_VALUE;
354    }
355
356    // Get max jpeg buffer size
357    ssize_t maxJpegBufferSize = 0;
358    camera_metadata_ro_entry jpegBufMaxSize = mDeviceInfo.find(ANDROID_JPEG_MAX_SIZE);
359    if (jpegBufMaxSize.count == 0) {
360        ALOGE("%s: Camera %d: Can't find maximum JPEG size in static metadata!", __FUNCTION__, mId);
361        return BAD_VALUE;
362    }
363    maxJpegBufferSize = jpegBufMaxSize.data.i32[0];
364
365    // Calculate final jpeg buffer size for the given resolution.
366    float scaleFactor = ((float) (width * height)) /
367            (maxJpegResolution.width * maxJpegResolution.height);
368    ssize_t jpegBufferSize = scaleFactor * maxJpegBufferSize;
369    // Bound the buffer size to [MIN_JPEG_BUFFER_SIZE, maxJpegBufferSize].
370    if (jpegBufferSize > maxJpegBufferSize) {
371        jpegBufferSize = maxJpegBufferSize;
372    } else if (jpegBufferSize < kMinJpegBufferSize) {
373        jpegBufferSize = kMinJpegBufferSize;
374    }
375
376    return jpegBufferSize;
377}
378
379status_t Camera3Device::dump(int fd, const Vector<String16> &args) {
380    ATRACE_CALL();
381    (void)args;
382
383    // Try to lock, but continue in case of failure (to avoid blocking in
384    // deadlocks)
385    bool gotInterfaceLock = tryLockSpinRightRound(mInterfaceLock);
386    bool gotLock = tryLockSpinRightRound(mLock);
387
388    ALOGW_IF(!gotInterfaceLock,
389            "Camera %d: %s: Unable to lock interface lock, proceeding anyway",
390            mId, __FUNCTION__);
391    ALOGW_IF(!gotLock,
392            "Camera %d: %s: Unable to lock main lock, proceeding anyway",
393            mId, __FUNCTION__);
394
395    String8 lines;
396
397    const char *status =
398            mStatus == STATUS_ERROR         ? "ERROR" :
399            mStatus == STATUS_UNINITIALIZED ? "UNINITIALIZED" :
400            mStatus == STATUS_UNCONFIGURED  ? "UNCONFIGURED" :
401            mStatus == STATUS_CONFIGURED    ? "CONFIGURED" :
402            mStatus == STATUS_ACTIVE        ? "ACTIVE" :
403            "Unknown";
404
405    lines.appendFormat("    Device status: %s\n", status);
406    if (mStatus == STATUS_ERROR) {
407        lines.appendFormat("    Error cause: %s\n", mErrorCause.string());
408    }
409    lines.appendFormat("    Stream configuration:\n");
410
411    if (mInputStream != NULL) {
412        write(fd, lines.string(), lines.size());
413        mInputStream->dump(fd, args);
414    } else {
415        lines.appendFormat("      No input stream.\n");
416        write(fd, lines.string(), lines.size());
417    }
418    for (size_t i = 0; i < mOutputStreams.size(); i++) {
419        mOutputStreams[i]->dump(fd,args);
420    }
421
422    lines = String8("    In-flight requests:\n");
423    if (mInFlightMap.size() == 0) {
424        lines.append("      None\n");
425    } else {
426        for (size_t i = 0; i < mInFlightMap.size(); i++) {
427            InFlightRequest r = mInFlightMap.valueAt(i);
428            lines.appendFormat("      Frame %d |  Timestamp: %" PRId64 ", metadata"
429                    " arrived: %s, buffers left: %d\n", mInFlightMap.keyAt(i),
430                    r.captureTimestamp, r.haveResultMetadata ? "true" : "false",
431                    r.numBuffersLeft);
432        }
433    }
434    write(fd, lines.string(), lines.size());
435
436    {
437        lines = String8("    Last request sent:\n");
438        write(fd, lines.string(), lines.size());
439
440        CameraMetadata lastRequest = getLatestRequestLocked();
441        lastRequest.dump(fd, /*verbosity*/2, /*indentation*/6);
442    }
443
444    if (mHal3Device != NULL) {
445        lines = String8("    HAL device dump:\n");
446        write(fd, lines.string(), lines.size());
447        mHal3Device->ops->dump(mHal3Device, fd);
448    }
449
450    if (gotLock) mLock.unlock();
451    if (gotInterfaceLock) mInterfaceLock.unlock();
452
453    return OK;
454}
455
456const CameraMetadata& Camera3Device::info() const {
457    ALOGVV("%s: E", __FUNCTION__);
458    if (CC_UNLIKELY(mStatus == STATUS_UNINITIALIZED ||
459                    mStatus == STATUS_ERROR)) {
460        ALOGW("%s: Access to static info %s!", __FUNCTION__,
461                mStatus == STATUS_ERROR ?
462                "when in error state" : "before init");
463    }
464    return mDeviceInfo;
465}
466
467status_t Camera3Device::checkStatusOkToCaptureLocked() {
468    switch (mStatus) {
469        case STATUS_ERROR:
470            CLOGE("Device has encountered a serious error");
471            return INVALID_OPERATION;
472        case STATUS_UNINITIALIZED:
473            CLOGE("Device not initialized");
474            return INVALID_OPERATION;
475        case STATUS_UNCONFIGURED:
476        case STATUS_CONFIGURED:
477        case STATUS_ACTIVE:
478            // OK
479            break;
480        default:
481            SET_ERR_L("Unexpected status: %d", mStatus);
482            return INVALID_OPERATION;
483    }
484    return OK;
485}
486
487status_t Camera3Device::convertMetadataListToRequestListLocked(
488        const List<const CameraMetadata> &metadataList, RequestList *requestList) {
489    if (requestList == NULL) {
490        CLOGE("requestList cannot be NULL.");
491        return BAD_VALUE;
492    }
493
494    int32_t burstId = 0;
495    for (List<const CameraMetadata>::const_iterator it = metadataList.begin();
496            it != metadataList.end(); ++it) {
497        sp<CaptureRequest> newRequest = setUpRequestLocked(*it);
498        if (newRequest == 0) {
499            CLOGE("Can't create capture request");
500            return BAD_VALUE;
501        }
502
503        // Setup burst Id and request Id
504        newRequest->mResultExtras.burstId = burstId++;
505        if (it->exists(ANDROID_REQUEST_ID)) {
506            if (it->find(ANDROID_REQUEST_ID).count == 0) {
507                CLOGE("RequestID entry exists; but must not be empty in metadata");
508                return BAD_VALUE;
509            }
510            newRequest->mResultExtras.requestId = it->find(ANDROID_REQUEST_ID).data.i32[0];
511        } else {
512            CLOGE("RequestID does not exist in metadata");
513            return BAD_VALUE;
514        }
515
516        requestList->push_back(newRequest);
517
518        ALOGV("%s: requestId = %" PRId32, __FUNCTION__, newRequest->mResultExtras.requestId);
519    }
520    return OK;
521}
522
523status_t Camera3Device::capture(CameraMetadata &request, int64_t* /*lastFrameNumber*/) {
524    ATRACE_CALL();
525
526    List<const CameraMetadata> requests;
527    requests.push_back(request);
528    return captureList(requests, /*lastFrameNumber*/NULL);
529}
530
531status_t Camera3Device::submitRequestsHelper(
532        const List<const CameraMetadata> &requests, bool repeating,
533        /*out*/
534        int64_t *lastFrameNumber) {
535    ATRACE_CALL();
536    Mutex::Autolock il(mInterfaceLock);
537    Mutex::Autolock l(mLock);
538
539    status_t res = checkStatusOkToCaptureLocked();
540    if (res != OK) {
541        // error logged by previous call
542        return res;
543    }
544
545    RequestList requestList;
546
547    res = convertMetadataListToRequestListLocked(requests, /*out*/&requestList);
548    if (res != OK) {
549        // error logged by previous call
550        return res;
551    }
552
553    if (repeating) {
554        res = mRequestThread->setRepeatingRequests(requestList, lastFrameNumber);
555    } else {
556        res = mRequestThread->queueRequestList(requestList, lastFrameNumber);
557    }
558
559    if (res == OK) {
560        waitUntilStateThenRelock(/*active*/true, kActiveTimeout);
561        if (res != OK) {
562            SET_ERR_L("Can't transition to active in %f seconds!",
563                    kActiveTimeout/1e9);
564        }
565        ALOGV("Camera %d: Capture request %" PRId32 " enqueued", mId,
566              (*(requestList.begin()))->mResultExtras.requestId);
567    } else {
568        CLOGE("Cannot queue request. Impossible.");
569        return BAD_VALUE;
570    }
571
572    return res;
573}
574
575status_t Camera3Device::captureList(const List<const CameraMetadata> &requests,
576                                    int64_t *lastFrameNumber) {
577    ATRACE_CALL();
578
579    return submitRequestsHelper(requests, /*repeating*/false, lastFrameNumber);
580}
581
582status_t Camera3Device::setStreamingRequest(const CameraMetadata &request,
583                                            int64_t* /*lastFrameNumber*/) {
584    ATRACE_CALL();
585
586    List<const CameraMetadata> requests;
587    requests.push_back(request);
588    return setStreamingRequestList(requests, /*lastFrameNumber*/NULL);
589}
590
591status_t Camera3Device::setStreamingRequestList(const List<const CameraMetadata> &requests,
592                                                int64_t *lastFrameNumber) {
593    ATRACE_CALL();
594
595    return submitRequestsHelper(requests, /*repeating*/true, lastFrameNumber);
596}
597
598sp<Camera3Device::CaptureRequest> Camera3Device::setUpRequestLocked(
599        const CameraMetadata &request) {
600    status_t res;
601
602    if (mStatus == STATUS_UNCONFIGURED || mNeedConfig) {
603        res = configureStreamsLocked();
604        // Stream configuration failed due to unsupported configuration.
605        // Device back to unconfigured state. Client might try other configuraitons
606        if (res == BAD_VALUE && mStatus == STATUS_UNCONFIGURED) {
607            CLOGE("No streams configured");
608            return NULL;
609        }
610        // Stream configuration failed for other reason. Fatal.
611        if (res != OK) {
612            SET_ERR_L("Can't set up streams: %s (%d)", strerror(-res), res);
613            return NULL;
614        }
615        // Stream configuration successfully configure to empty stream configuration.
616        if (mStatus == STATUS_UNCONFIGURED) {
617            CLOGE("No streams configured");
618            return NULL;
619        }
620    }
621
622    sp<CaptureRequest> newRequest = createCaptureRequest(request);
623    return newRequest;
624}
625
626status_t Camera3Device::clearStreamingRequest(int64_t *lastFrameNumber) {
627    ATRACE_CALL();
628    Mutex::Autolock il(mInterfaceLock);
629    Mutex::Autolock l(mLock);
630
631    switch (mStatus) {
632        case STATUS_ERROR:
633            CLOGE("Device has encountered a serious error");
634            return INVALID_OPERATION;
635        case STATUS_UNINITIALIZED:
636            CLOGE("Device not initialized");
637            return INVALID_OPERATION;
638        case STATUS_UNCONFIGURED:
639        case STATUS_CONFIGURED:
640        case STATUS_ACTIVE:
641            // OK
642            break;
643        default:
644            SET_ERR_L("Unexpected status: %d", mStatus);
645            return INVALID_OPERATION;
646    }
647    ALOGV("Camera %d: Clearing repeating request", mId);
648
649    return mRequestThread->clearRepeatingRequests(lastFrameNumber);
650}
651
652status_t Camera3Device::waitUntilRequestReceived(int32_t requestId, nsecs_t timeout) {
653    ATRACE_CALL();
654    Mutex::Autolock il(mInterfaceLock);
655
656    return mRequestThread->waitUntilRequestProcessed(requestId, timeout);
657}
658
659status_t Camera3Device::createInputStream(
660        uint32_t width, uint32_t height, int format, int *id) {
661    ATRACE_CALL();
662    Mutex::Autolock il(mInterfaceLock);
663    Mutex::Autolock l(mLock);
664    ALOGV("Camera %d: Creating new input stream %d: %d x %d, format %d",
665            mId, mNextStreamId, width, height, format);
666
667    status_t res;
668    bool wasActive = false;
669
670    switch (mStatus) {
671        case STATUS_ERROR:
672            ALOGE("%s: Device has encountered a serious error", __FUNCTION__);
673            return INVALID_OPERATION;
674        case STATUS_UNINITIALIZED:
675            ALOGE("%s: Device not initialized", __FUNCTION__);
676            return INVALID_OPERATION;
677        case STATUS_UNCONFIGURED:
678        case STATUS_CONFIGURED:
679            // OK
680            break;
681        case STATUS_ACTIVE:
682            ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
683            res = internalPauseAndWaitLocked();
684            if (res != OK) {
685                SET_ERR_L("Can't pause captures to reconfigure streams!");
686                return res;
687            }
688            wasActive = true;
689            break;
690        default:
691            SET_ERR_L("%s: Unexpected status: %d", mStatus);
692            return INVALID_OPERATION;
693    }
694    assert(mStatus != STATUS_ACTIVE);
695
696    if (mInputStream != 0) {
697        ALOGE("%s: Cannot create more than 1 input stream", __FUNCTION__);
698        return INVALID_OPERATION;
699    }
700
701    sp<Camera3InputStream> newStream = new Camera3InputStream(mNextStreamId,
702                width, height, format);
703    newStream->setStatusTracker(mStatusTracker);
704
705    mInputStream = newStream;
706
707    *id = mNextStreamId++;
708
709    // Continue captures if active at start
710    if (wasActive) {
711        ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
712        res = configureStreamsLocked();
713        if (res != OK) {
714            ALOGE("%s: Can't reconfigure device for new stream %d: %s (%d)",
715                    __FUNCTION__, mNextStreamId, strerror(-res), res);
716            return res;
717        }
718        internalResumeLocked();
719    }
720
721    ALOGV("Camera %d: Created input stream", mId);
722    return OK;
723}
724
725
726status_t Camera3Device::createZslStream(
727            uint32_t width, uint32_t height,
728            int depth,
729            /*out*/
730            int *id,
731            sp<Camera3ZslStream>* zslStream) {
732    ATRACE_CALL();
733    Mutex::Autolock il(mInterfaceLock);
734    Mutex::Autolock l(mLock);
735    ALOGV("Camera %d: Creating ZSL stream %d: %d x %d, depth %d",
736            mId, mNextStreamId, width, height, depth);
737
738    status_t res;
739    bool wasActive = false;
740
741    switch (mStatus) {
742        case STATUS_ERROR:
743            ALOGE("%s: Device has encountered a serious error", __FUNCTION__);
744            return INVALID_OPERATION;
745        case STATUS_UNINITIALIZED:
746            ALOGE("%s: Device not initialized", __FUNCTION__);
747            return INVALID_OPERATION;
748        case STATUS_UNCONFIGURED:
749        case STATUS_CONFIGURED:
750            // OK
751            break;
752        case STATUS_ACTIVE:
753            ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
754            res = internalPauseAndWaitLocked();
755            if (res != OK) {
756                SET_ERR_L("Can't pause captures to reconfigure streams!");
757                return res;
758            }
759            wasActive = true;
760            break;
761        default:
762            SET_ERR_L("Unexpected status: %d", mStatus);
763            return INVALID_OPERATION;
764    }
765    assert(mStatus != STATUS_ACTIVE);
766
767    if (mInputStream != 0) {
768        ALOGE("%s: Cannot create more than 1 input stream", __FUNCTION__);
769        return INVALID_OPERATION;
770    }
771
772    sp<Camera3ZslStream> newStream = new Camera3ZslStream(mNextStreamId,
773                width, height, depth);
774    newStream->setStatusTracker(mStatusTracker);
775
776    res = mOutputStreams.add(mNextStreamId, newStream);
777    if (res < 0) {
778        ALOGE("%s: Can't add new stream to set: %s (%d)",
779                __FUNCTION__, strerror(-res), res);
780        return res;
781    }
782    mInputStream = newStream;
783
784    mNeedConfig = true;
785
786    *id = mNextStreamId++;
787    *zslStream = newStream;
788
789    // Continue captures if active at start
790    if (wasActive) {
791        ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
792        res = configureStreamsLocked();
793        if (res != OK) {
794            ALOGE("%s: Can't reconfigure device for new stream %d: %s (%d)",
795                    __FUNCTION__, mNextStreamId, strerror(-res), res);
796            return res;
797        }
798        internalResumeLocked();
799    }
800
801    ALOGV("Camera %d: Created ZSL stream", mId);
802    return OK;
803}
804
805status_t Camera3Device::createStream(sp<ANativeWindow> consumer,
806        uint32_t width, uint32_t height, int format, int *id) {
807    ATRACE_CALL();
808    Mutex::Autolock il(mInterfaceLock);
809    Mutex::Autolock l(mLock);
810    ALOGV("Camera %d: Creating new stream %d: %d x %d, format %d",
811            mId, mNextStreamId, width, height, format);
812
813    status_t res;
814    bool wasActive = false;
815
816    switch (mStatus) {
817        case STATUS_ERROR:
818            CLOGE("Device has encountered a serious error");
819            return INVALID_OPERATION;
820        case STATUS_UNINITIALIZED:
821            CLOGE("Device not initialized");
822            return INVALID_OPERATION;
823        case STATUS_UNCONFIGURED:
824        case STATUS_CONFIGURED:
825            // OK
826            break;
827        case STATUS_ACTIVE:
828            ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
829            res = internalPauseAndWaitLocked();
830            if (res != OK) {
831                SET_ERR_L("Can't pause captures to reconfigure streams!");
832                return res;
833            }
834            wasActive = true;
835            break;
836        default:
837            SET_ERR_L("Unexpected status: %d", mStatus);
838            return INVALID_OPERATION;
839    }
840    assert(mStatus != STATUS_ACTIVE);
841
842    sp<Camera3OutputStream> newStream;
843    if (format == HAL_PIXEL_FORMAT_BLOB) {
844        ssize_t jpegBufferSize = getJpegBufferSize(width, height);
845        if (jpegBufferSize <= 0) {
846            SET_ERR_L("Invalid jpeg buffer size %zd", jpegBufferSize);
847            return BAD_VALUE;
848        }
849
850        newStream = new Camera3OutputStream(mNextStreamId, consumer,
851                width, height, jpegBufferSize, format);
852    } else {
853        newStream = new Camera3OutputStream(mNextStreamId, consumer,
854                width, height, format);
855    }
856    newStream->setStatusTracker(mStatusTracker);
857
858    res = mOutputStreams.add(mNextStreamId, newStream);
859    if (res < 0) {
860        SET_ERR_L("Can't add new stream to set: %s (%d)", strerror(-res), res);
861        return res;
862    }
863
864    *id = mNextStreamId++;
865    mNeedConfig = true;
866
867    // Continue captures if active at start
868    if (wasActive) {
869        ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
870        res = configureStreamsLocked();
871        if (res != OK) {
872            CLOGE("Can't reconfigure device for new stream %d: %s (%d)",
873                    mNextStreamId, strerror(-res), res);
874            return res;
875        }
876        internalResumeLocked();
877    }
878    ALOGV("Camera %d: Created new stream", mId);
879    return OK;
880}
881
882status_t Camera3Device::createReprocessStreamFromStream(int outputId, int *id) {
883    ATRACE_CALL();
884    (void)outputId; (void)id;
885
886    CLOGE("Unimplemented");
887    return INVALID_OPERATION;
888}
889
890
891status_t Camera3Device::getStreamInfo(int id,
892        uint32_t *width, uint32_t *height, uint32_t *format) {
893    ATRACE_CALL();
894    Mutex::Autolock il(mInterfaceLock);
895    Mutex::Autolock l(mLock);
896
897    switch (mStatus) {
898        case STATUS_ERROR:
899            CLOGE("Device has encountered a serious error");
900            return INVALID_OPERATION;
901        case STATUS_UNINITIALIZED:
902            CLOGE("Device not initialized!");
903            return INVALID_OPERATION;
904        case STATUS_UNCONFIGURED:
905        case STATUS_CONFIGURED:
906        case STATUS_ACTIVE:
907            // OK
908            break;
909        default:
910            SET_ERR_L("Unexpected status: %d", mStatus);
911            return INVALID_OPERATION;
912    }
913
914    ssize_t idx = mOutputStreams.indexOfKey(id);
915    if (idx == NAME_NOT_FOUND) {
916        CLOGE("Stream %d is unknown", id);
917        return idx;
918    }
919
920    if (width) *width  = mOutputStreams[idx]->getWidth();
921    if (height) *height = mOutputStreams[idx]->getHeight();
922    if (format) *format = mOutputStreams[idx]->getFormat();
923
924    return OK;
925}
926
927status_t Camera3Device::setStreamTransform(int id,
928        int transform) {
929    ATRACE_CALL();
930    Mutex::Autolock il(mInterfaceLock);
931    Mutex::Autolock l(mLock);
932
933    switch (mStatus) {
934        case STATUS_ERROR:
935            CLOGE("Device has encountered a serious error");
936            return INVALID_OPERATION;
937        case STATUS_UNINITIALIZED:
938            CLOGE("Device not initialized");
939            return INVALID_OPERATION;
940        case STATUS_UNCONFIGURED:
941        case STATUS_CONFIGURED:
942        case STATUS_ACTIVE:
943            // OK
944            break;
945        default:
946            SET_ERR_L("Unexpected status: %d", mStatus);
947            return INVALID_OPERATION;
948    }
949
950    ssize_t idx = mOutputStreams.indexOfKey(id);
951    if (idx == NAME_NOT_FOUND) {
952        CLOGE("Stream %d does not exist",
953                id);
954        return BAD_VALUE;
955    }
956
957    return mOutputStreams.editValueAt(idx)->setTransform(transform);
958}
959
960status_t Camera3Device::deleteStream(int id) {
961    ATRACE_CALL();
962    Mutex::Autolock il(mInterfaceLock);
963    Mutex::Autolock l(mLock);
964    status_t res;
965
966    ALOGV("%s: Camera %d: Deleting stream %d", __FUNCTION__, mId, id);
967
968    // CameraDevice semantics require device to already be idle before
969    // deleteStream is called, unlike for createStream.
970    if (mStatus == STATUS_ACTIVE) {
971        ALOGV("%s: Camera %d: Device not idle", __FUNCTION__, mId);
972        return -EBUSY;
973    }
974
975    sp<Camera3StreamInterface> deletedStream;
976    ssize_t outputStreamIdx = mOutputStreams.indexOfKey(id);
977    if (mInputStream != NULL && id == mInputStream->getId()) {
978        deletedStream = mInputStream;
979        mInputStream.clear();
980    } else {
981        if (outputStreamIdx == NAME_NOT_FOUND) {
982            CLOGE("Stream %d does not exist", id);
983            return BAD_VALUE;
984        }
985    }
986
987    // Delete output stream or the output part of a bi-directional stream.
988    if (outputStreamIdx != NAME_NOT_FOUND) {
989        deletedStream = mOutputStreams.editValueAt(outputStreamIdx);
990        mOutputStreams.removeItem(id);
991    }
992
993    // Free up the stream endpoint so that it can be used by some other stream
994    res = deletedStream->disconnect();
995    if (res != OK) {
996        SET_ERR_L("Can't disconnect deleted stream %d", id);
997        // fall through since we want to still list the stream as deleted.
998    }
999    mDeletedStreams.add(deletedStream);
1000    mNeedConfig = true;
1001
1002    return res;
1003}
1004
1005status_t Camera3Device::deleteReprocessStream(int id) {
1006    ATRACE_CALL();
1007    (void)id;
1008
1009    CLOGE("Unimplemented");
1010    return INVALID_OPERATION;
1011}
1012
1013status_t Camera3Device::configureStreams() {
1014    ATRACE_CALL();
1015    ALOGV("%s: E", __FUNCTION__);
1016
1017    Mutex::Autolock il(mInterfaceLock);
1018    Mutex::Autolock l(mLock);
1019
1020    return configureStreamsLocked();
1021}
1022
1023status_t Camera3Device::createDefaultRequest(int templateId,
1024        CameraMetadata *request) {
1025    ATRACE_CALL();
1026    ALOGV("%s: for template %d", __FUNCTION__, templateId);
1027    Mutex::Autolock il(mInterfaceLock);
1028    Mutex::Autolock l(mLock);
1029
1030    switch (mStatus) {
1031        case STATUS_ERROR:
1032            CLOGE("Device has encountered a serious error");
1033            return INVALID_OPERATION;
1034        case STATUS_UNINITIALIZED:
1035            CLOGE("Device is not initialized!");
1036            return INVALID_OPERATION;
1037        case STATUS_UNCONFIGURED:
1038        case STATUS_CONFIGURED:
1039        case STATUS_ACTIVE:
1040            // OK
1041            break;
1042        default:
1043            SET_ERR_L("Unexpected status: %d", mStatus);
1044            return INVALID_OPERATION;
1045    }
1046
1047    const camera_metadata_t *rawRequest;
1048    ATRACE_BEGIN("camera3->construct_default_request_settings");
1049    rawRequest = mHal3Device->ops->construct_default_request_settings(
1050        mHal3Device, templateId);
1051    ATRACE_END();
1052    if (rawRequest == NULL) {
1053        SET_ERR_L("HAL is unable to construct default settings for template %d",
1054                templateId);
1055        return DEAD_OBJECT;
1056    }
1057    *request = rawRequest;
1058
1059    return OK;
1060}
1061
1062status_t Camera3Device::waitUntilDrained() {
1063    ATRACE_CALL();
1064    Mutex::Autolock il(mInterfaceLock);
1065    Mutex::Autolock l(mLock);
1066
1067    return waitUntilDrainedLocked();
1068}
1069
1070status_t Camera3Device::waitUntilDrainedLocked() {
1071    switch (mStatus) {
1072        case STATUS_UNINITIALIZED:
1073        case STATUS_UNCONFIGURED:
1074            ALOGV("%s: Already idle", __FUNCTION__);
1075            return OK;
1076        case STATUS_CONFIGURED:
1077            // To avoid race conditions, check with tracker to be sure
1078        case STATUS_ERROR:
1079        case STATUS_ACTIVE:
1080            // Need to verify shut down
1081            break;
1082        default:
1083            SET_ERR_L("Unexpected status: %d",mStatus);
1084            return INVALID_OPERATION;
1085    }
1086
1087    ALOGV("%s: Camera %d: Waiting until idle", __FUNCTION__, mId);
1088    status_t res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
1089    return res;
1090}
1091
1092// Pause to reconfigure
1093status_t Camera3Device::internalPauseAndWaitLocked() {
1094    mRequestThread->setPaused(true);
1095    mPauseStateNotify = true;
1096
1097    ALOGV("%s: Camera %d: Internal wait until idle", __FUNCTION__, mId);
1098    status_t res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
1099    if (res != OK) {
1100        SET_ERR_L("Can't idle device in %f seconds!",
1101                kShutdownTimeout/1e9);
1102    }
1103
1104    return res;
1105}
1106
1107// Resume after internalPauseAndWaitLocked
1108status_t Camera3Device::internalResumeLocked() {
1109    status_t res;
1110
1111    mRequestThread->setPaused(false);
1112
1113    res = waitUntilStateThenRelock(/*active*/ true, kActiveTimeout);
1114    if (res != OK) {
1115        SET_ERR_L("Can't transition to active in %f seconds!",
1116                kActiveTimeout/1e9);
1117    }
1118    mPauseStateNotify = false;
1119    return OK;
1120}
1121
1122status_t Camera3Device::waitUntilStateThenRelock(bool active,
1123        nsecs_t timeout) {
1124    status_t res = OK;
1125    if (active == (mStatus == STATUS_ACTIVE)) {
1126        // Desired state already reached
1127        return res;
1128    }
1129
1130    bool stateSeen = false;
1131    do {
1132        mRecentStatusUpdates.clear();
1133
1134        res = mStatusChanged.waitRelative(mLock, timeout);
1135        if (res != OK) break;
1136
1137        // Check state change history during wait
1138        for (size_t i = 0; i < mRecentStatusUpdates.size(); i++) {
1139            if (active == (mRecentStatusUpdates[i] == STATUS_ACTIVE) ) {
1140                stateSeen = true;
1141                break;
1142            }
1143        }
1144    } while (!stateSeen);
1145
1146    return res;
1147}
1148
1149
1150status_t Camera3Device::setNotifyCallback(NotificationListener *listener) {
1151    ATRACE_CALL();
1152    Mutex::Autolock l(mOutputLock);
1153
1154    if (listener != NULL && mListener != NULL) {
1155        ALOGW("%s: Replacing old callback listener", __FUNCTION__);
1156    }
1157    mListener = listener;
1158    mRequestThread->setNotifyCallback(listener);
1159
1160    return OK;
1161}
1162
1163bool Camera3Device::willNotify3A() {
1164    return false;
1165}
1166
1167status_t Camera3Device::waitForNextFrame(nsecs_t timeout) {
1168    status_t res;
1169    Mutex::Autolock l(mOutputLock);
1170
1171    while (mResultQueue.empty()) {
1172        res = mResultSignal.waitRelative(mOutputLock, timeout);
1173        if (res == TIMED_OUT) {
1174            return res;
1175        } else if (res != OK) {
1176            ALOGW("%s: Camera %d: No frame in %" PRId64 " ns: %s (%d)",
1177                    __FUNCTION__, mId, timeout, strerror(-res), res);
1178            return res;
1179        }
1180    }
1181    return OK;
1182}
1183
1184status_t Camera3Device::getNextResult(CaptureResult *frame) {
1185    ATRACE_CALL();
1186    Mutex::Autolock l(mOutputLock);
1187
1188    if (mResultQueue.empty()) {
1189        return NOT_ENOUGH_DATA;
1190    }
1191
1192    if (frame == NULL) {
1193        ALOGE("%s: argument cannot be NULL", __FUNCTION__);
1194        return BAD_VALUE;
1195    }
1196
1197    CaptureResult &result = *(mResultQueue.begin());
1198    frame->mResultExtras = result.mResultExtras;
1199    frame->mMetadata.acquire(result.mMetadata);
1200    mResultQueue.erase(mResultQueue.begin());
1201
1202    return OK;
1203}
1204
1205status_t Camera3Device::triggerAutofocus(uint32_t id) {
1206    ATRACE_CALL();
1207    Mutex::Autolock il(mInterfaceLock);
1208
1209    ALOGV("%s: Triggering autofocus, id %d", __FUNCTION__, id);
1210    // Mix-in this trigger into the next request and only the next request.
1211    RequestTrigger trigger[] = {
1212        {
1213            ANDROID_CONTROL_AF_TRIGGER,
1214            ANDROID_CONTROL_AF_TRIGGER_START
1215        },
1216        {
1217            ANDROID_CONTROL_AF_TRIGGER_ID,
1218            static_cast<int32_t>(id)
1219        }
1220    };
1221
1222    return mRequestThread->queueTrigger(trigger,
1223                                        sizeof(trigger)/sizeof(trigger[0]));
1224}
1225
1226status_t Camera3Device::triggerCancelAutofocus(uint32_t id) {
1227    ATRACE_CALL();
1228    Mutex::Autolock il(mInterfaceLock);
1229
1230    ALOGV("%s: Triggering cancel autofocus, id %d", __FUNCTION__, id);
1231    // Mix-in this trigger into the next request and only the next request.
1232    RequestTrigger trigger[] = {
1233        {
1234            ANDROID_CONTROL_AF_TRIGGER,
1235            ANDROID_CONTROL_AF_TRIGGER_CANCEL
1236        },
1237        {
1238            ANDROID_CONTROL_AF_TRIGGER_ID,
1239            static_cast<int32_t>(id)
1240        }
1241    };
1242
1243    return mRequestThread->queueTrigger(trigger,
1244                                        sizeof(trigger)/sizeof(trigger[0]));
1245}
1246
1247status_t Camera3Device::triggerPrecaptureMetering(uint32_t id) {
1248    ATRACE_CALL();
1249    Mutex::Autolock il(mInterfaceLock);
1250
1251    ALOGV("%s: Triggering precapture metering, id %d", __FUNCTION__, id);
1252    // Mix-in this trigger into the next request and only the next request.
1253    RequestTrigger trigger[] = {
1254        {
1255            ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER,
1256            ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER_START
1257        },
1258        {
1259            ANDROID_CONTROL_AE_PRECAPTURE_ID,
1260            static_cast<int32_t>(id)
1261        }
1262    };
1263
1264    return mRequestThread->queueTrigger(trigger,
1265                                        sizeof(trigger)/sizeof(trigger[0]));
1266}
1267
1268status_t Camera3Device::pushReprocessBuffer(int reprocessStreamId,
1269        buffer_handle_t *buffer, wp<BufferReleasedListener> listener) {
1270    ATRACE_CALL();
1271    (void)reprocessStreamId; (void)buffer; (void)listener;
1272
1273    CLOGE("Unimplemented");
1274    return INVALID_OPERATION;
1275}
1276
1277status_t Camera3Device::flush(int64_t *frameNumber) {
1278    ATRACE_CALL();
1279    ALOGV("%s: Camera %d: Flushing all requests", __FUNCTION__, mId);
1280    Mutex::Autolock il(mInterfaceLock);
1281
1282    NotificationListener* listener;
1283    {
1284        Mutex::Autolock l(mOutputLock);
1285        listener = mListener;
1286    }
1287
1288    {
1289        Mutex::Autolock l(mLock);
1290        mRequestThread->clear(listener, /*out*/frameNumber);
1291    }
1292
1293    status_t res;
1294    if (mHal3Device->common.version >= CAMERA_DEVICE_API_VERSION_3_1) {
1295        res = mHal3Device->ops->flush(mHal3Device);
1296    } else {
1297        Mutex::Autolock l(mLock);
1298        res = waitUntilDrainedLocked();
1299    }
1300
1301    return res;
1302}
1303
1304uint32_t Camera3Device::getDeviceVersion() {
1305    ATRACE_CALL();
1306    Mutex::Autolock il(mInterfaceLock);
1307    return mDeviceVersion;
1308}
1309
1310/**
1311 * Methods called by subclasses
1312 */
1313
1314void Camera3Device::notifyStatus(bool idle) {
1315    {
1316        // Need mLock to safely update state and synchronize to current
1317        // state of methods in flight.
1318        Mutex::Autolock l(mLock);
1319        // We can get various system-idle notices from the status tracker
1320        // while starting up. Only care about them if we've actually sent
1321        // in some requests recently.
1322        if (mStatus != STATUS_ACTIVE && mStatus != STATUS_CONFIGURED) {
1323            return;
1324        }
1325        ALOGV("%s: Camera %d: Now %s", __FUNCTION__, mId,
1326                idle ? "idle" : "active");
1327        mStatus = idle ? STATUS_CONFIGURED : STATUS_ACTIVE;
1328        mRecentStatusUpdates.add(mStatus);
1329        mStatusChanged.signal();
1330
1331        // Skip notifying listener if we're doing some user-transparent
1332        // state changes
1333        if (mPauseStateNotify) return;
1334    }
1335    NotificationListener *listener;
1336    {
1337        Mutex::Autolock l(mOutputLock);
1338        listener = mListener;
1339    }
1340    if (idle && listener != NULL) {
1341        listener->notifyIdle();
1342    }
1343}
1344
1345/**
1346 * Camera3Device private methods
1347 */
1348
1349sp<Camera3Device::CaptureRequest> Camera3Device::createCaptureRequest(
1350        const CameraMetadata &request) {
1351    ATRACE_CALL();
1352    status_t res;
1353
1354    sp<CaptureRequest> newRequest = new CaptureRequest;
1355    newRequest->mSettings = request;
1356
1357    camera_metadata_entry_t inputStreams =
1358            newRequest->mSettings.find(ANDROID_REQUEST_INPUT_STREAMS);
1359    if (inputStreams.count > 0) {
1360        if (mInputStream == NULL ||
1361                mInputStream->getId() != inputStreams.data.i32[0]) {
1362            CLOGE("Request references unknown input stream %d",
1363                    inputStreams.data.u8[0]);
1364            return NULL;
1365        }
1366        // Lazy completion of stream configuration (allocation/registration)
1367        // on first use
1368        if (mInputStream->isConfiguring()) {
1369            res = mInputStream->finishConfiguration(mHal3Device);
1370            if (res != OK) {
1371                SET_ERR_L("Unable to finish configuring input stream %d:"
1372                        " %s (%d)",
1373                        mInputStream->getId(), strerror(-res), res);
1374                return NULL;
1375            }
1376        }
1377
1378        newRequest->mInputStream = mInputStream;
1379        newRequest->mSettings.erase(ANDROID_REQUEST_INPUT_STREAMS);
1380    }
1381
1382    camera_metadata_entry_t streams =
1383            newRequest->mSettings.find(ANDROID_REQUEST_OUTPUT_STREAMS);
1384    if (streams.count == 0) {
1385        CLOGE("Zero output streams specified!");
1386        return NULL;
1387    }
1388
1389    for (size_t i = 0; i < streams.count; i++) {
1390        int idx = mOutputStreams.indexOfKey(streams.data.i32[i]);
1391        if (idx == NAME_NOT_FOUND) {
1392            CLOGE("Request references unknown stream %d",
1393                    streams.data.u8[i]);
1394            return NULL;
1395        }
1396        sp<Camera3OutputStreamInterface> stream =
1397                mOutputStreams.editValueAt(idx);
1398
1399        // Lazy completion of stream configuration (allocation/registration)
1400        // on first use
1401        if (stream->isConfiguring()) {
1402            res = stream->finishConfiguration(mHal3Device);
1403            if (res != OK) {
1404                SET_ERR_L("Unable to finish configuring stream %d: %s (%d)",
1405                        stream->getId(), strerror(-res), res);
1406                return NULL;
1407            }
1408        }
1409
1410        newRequest->mOutputStreams.push(stream);
1411    }
1412    newRequest->mSettings.erase(ANDROID_REQUEST_OUTPUT_STREAMS);
1413
1414    return newRequest;
1415}
1416
1417status_t Camera3Device::configureStreamsLocked() {
1418    ATRACE_CALL();
1419    status_t res;
1420
1421    if (mStatus != STATUS_UNCONFIGURED && mStatus != STATUS_CONFIGURED) {
1422        CLOGE("Not idle");
1423        return INVALID_OPERATION;
1424    }
1425
1426    if (!mNeedConfig) {
1427        ALOGV("%s: Skipping config, no stream changes", __FUNCTION__);
1428        return OK;
1429    }
1430
1431    // Workaround for device HALv3.2 or older spec bug - zero streams requires
1432    // adding a dummy stream instead.
1433    // TODO: Bug: 17321404 for fixing the HAL spec and removing this workaround.
1434    if (mOutputStreams.size() == 0) {
1435        addDummyStreamLocked();
1436    } else {
1437        tryRemoveDummyStreamLocked();
1438    }
1439
1440    // Start configuring the streams
1441    ALOGV("%s: Camera %d: Starting stream configuration", __FUNCTION__, mId);
1442
1443    camera3_stream_configuration config;
1444
1445    config.num_streams = (mInputStream != NULL) + mOutputStreams.size();
1446
1447    Vector<camera3_stream_t*> streams;
1448    streams.setCapacity(config.num_streams);
1449
1450    if (mInputStream != NULL) {
1451        camera3_stream_t *inputStream;
1452        inputStream = mInputStream->startConfiguration();
1453        if (inputStream == NULL) {
1454            SET_ERR_L("Can't start input stream configuration");
1455            return INVALID_OPERATION;
1456        }
1457        streams.add(inputStream);
1458    }
1459
1460    for (size_t i = 0; i < mOutputStreams.size(); i++) {
1461
1462        // Don't configure bidi streams twice, nor add them twice to the list
1463        if (mOutputStreams[i].get() ==
1464            static_cast<Camera3StreamInterface*>(mInputStream.get())) {
1465
1466            config.num_streams--;
1467            continue;
1468        }
1469
1470        camera3_stream_t *outputStream;
1471        outputStream = mOutputStreams.editValueAt(i)->startConfiguration();
1472        if (outputStream == NULL) {
1473            SET_ERR_L("Can't start output stream configuration");
1474            return INVALID_OPERATION;
1475        }
1476        streams.add(outputStream);
1477    }
1478
1479    config.streams = streams.editArray();
1480
1481    // Do the HAL configuration; will potentially touch stream
1482    // max_buffers, usage, priv fields.
1483    ATRACE_BEGIN("camera3->configure_streams");
1484    res = mHal3Device->ops->configure_streams(mHal3Device, &config);
1485    ATRACE_END();
1486
1487    if (res == BAD_VALUE) {
1488        // HAL rejected this set of streams as unsupported, clean up config
1489        // attempt and return to unconfigured state
1490        if (mInputStream != NULL && mInputStream->isConfiguring()) {
1491            res = mInputStream->cancelConfiguration();
1492            if (res != OK) {
1493                SET_ERR_L("Can't cancel configuring input stream %d: %s (%d)",
1494                        mInputStream->getId(), strerror(-res), res);
1495                return res;
1496            }
1497        }
1498
1499        for (size_t i = 0; i < mOutputStreams.size(); i++) {
1500            sp<Camera3OutputStreamInterface> outputStream =
1501                    mOutputStreams.editValueAt(i);
1502            if (outputStream->isConfiguring()) {
1503                res = outputStream->cancelConfiguration();
1504                if (res != OK) {
1505                    SET_ERR_L(
1506                        "Can't cancel configuring output stream %d: %s (%d)",
1507                        outputStream->getId(), strerror(-res), res);
1508                    return res;
1509                }
1510            }
1511        }
1512
1513        // Return state to that at start of call, so that future configures
1514        // properly clean things up
1515        mStatus = STATUS_UNCONFIGURED;
1516        mNeedConfig = true;
1517
1518        ALOGV("%s: Camera %d: Stream configuration failed", __FUNCTION__, mId);
1519        return BAD_VALUE;
1520    } else if (res != OK) {
1521        // Some other kind of error from configure_streams - this is not
1522        // expected
1523        SET_ERR_L("Unable to configure streams with HAL: %s (%d)",
1524                strerror(-res), res);
1525        return res;
1526    }
1527
1528    // Finish all stream configuration immediately.
1529    // TODO: Try to relax this later back to lazy completion, which should be
1530    // faster
1531
1532    if (mInputStream != NULL && mInputStream->isConfiguring()) {
1533        res = mInputStream->finishConfiguration(mHal3Device);
1534        if (res != OK) {
1535            SET_ERR_L("Can't finish configuring input stream %d: %s (%d)",
1536                    mInputStream->getId(), strerror(-res), res);
1537            return res;
1538        }
1539    }
1540
1541    for (size_t i = 0; i < mOutputStreams.size(); i++) {
1542        sp<Camera3OutputStreamInterface> outputStream =
1543            mOutputStreams.editValueAt(i);
1544        if (outputStream->isConfiguring()) {
1545            res = outputStream->finishConfiguration(mHal3Device);
1546            if (res != OK) {
1547                SET_ERR_L("Can't finish configuring output stream %d: %s (%d)",
1548                        outputStream->getId(), strerror(-res), res);
1549                return res;
1550            }
1551        }
1552    }
1553
1554    // Request thread needs to know to avoid using repeat-last-settings protocol
1555    // across configure_streams() calls
1556    mRequestThread->configurationComplete();
1557
1558    // Update device state
1559
1560    mNeedConfig = false;
1561
1562    if (mDummyStreamId == NO_STREAM) {
1563        mStatus = STATUS_CONFIGURED;
1564    } else {
1565        mStatus = STATUS_UNCONFIGURED;
1566    }
1567
1568    ALOGV("%s: Camera %d: Stream configuration complete", __FUNCTION__, mId);
1569
1570    // tear down the deleted streams after configure streams.
1571    mDeletedStreams.clear();
1572
1573    return OK;
1574}
1575
1576status_t Camera3Device::addDummyStreamLocked() {
1577    ATRACE_CALL();
1578    status_t res;
1579
1580    if (mDummyStreamId != NO_STREAM) {
1581        // Should never be adding a second dummy stream when one is already
1582        // active
1583        SET_ERR_L("%s: Camera %d: A dummy stream already exists!",
1584                __FUNCTION__, mId);
1585        return INVALID_OPERATION;
1586    }
1587
1588    ALOGV("%s: Camera %d: Adding a dummy stream", __FUNCTION__, mId);
1589
1590    sp<Camera3OutputStreamInterface> dummyStream =
1591            new Camera3DummyStream(mNextStreamId);
1592
1593    res = mOutputStreams.add(mNextStreamId, dummyStream);
1594    if (res < 0) {
1595        SET_ERR_L("Can't add dummy stream to set: %s (%d)", strerror(-res), res);
1596        return res;
1597    }
1598
1599    mDummyStreamId = mNextStreamId;
1600    mNextStreamId++;
1601
1602    return OK;
1603}
1604
1605status_t Camera3Device::tryRemoveDummyStreamLocked() {
1606    ATRACE_CALL();
1607    status_t res;
1608
1609    if (mDummyStreamId == NO_STREAM) return OK;
1610    if (mOutputStreams.size() == 1) return OK;
1611
1612    ALOGV("%s: Camera %d: Removing the dummy stream", __FUNCTION__, mId);
1613
1614    // Ok, have a dummy stream and there's at least one other output stream,
1615    // so remove the dummy
1616
1617    sp<Camera3StreamInterface> deletedStream;
1618    ssize_t outputStreamIdx = mOutputStreams.indexOfKey(mDummyStreamId);
1619    if (outputStreamIdx == NAME_NOT_FOUND) {
1620        SET_ERR_L("Dummy stream %d does not appear to exist", mDummyStreamId);
1621        return INVALID_OPERATION;
1622    }
1623
1624    deletedStream = mOutputStreams.editValueAt(outputStreamIdx);
1625    mOutputStreams.removeItemsAt(outputStreamIdx);
1626
1627    // Free up the stream endpoint so that it can be used by some other stream
1628    res = deletedStream->disconnect();
1629    if (res != OK) {
1630        SET_ERR_L("Can't disconnect deleted dummy stream %d", mDummyStreamId);
1631        // fall through since we want to still list the stream as deleted.
1632    }
1633    mDeletedStreams.add(deletedStream);
1634    mDummyStreamId = NO_STREAM;
1635
1636    return res;
1637}
1638
1639void Camera3Device::setErrorState(const char *fmt, ...) {
1640    Mutex::Autolock l(mLock);
1641    va_list args;
1642    va_start(args, fmt);
1643
1644    setErrorStateLockedV(fmt, args);
1645
1646    va_end(args);
1647}
1648
1649void Camera3Device::setErrorStateV(const char *fmt, va_list args) {
1650    Mutex::Autolock l(mLock);
1651    setErrorStateLockedV(fmt, args);
1652}
1653
1654void Camera3Device::setErrorStateLocked(const char *fmt, ...) {
1655    va_list args;
1656    va_start(args, fmt);
1657
1658    setErrorStateLockedV(fmt, args);
1659
1660    va_end(args);
1661}
1662
1663void Camera3Device::setErrorStateLockedV(const char *fmt, va_list args) {
1664    // Print out all error messages to log
1665    String8 errorCause = String8::formatV(fmt, args);
1666    ALOGE("Camera %d: %s", mId, errorCause.string());
1667
1668    // But only do error state transition steps for the first error
1669    if (mStatus == STATUS_ERROR || mStatus == STATUS_UNINITIALIZED) return;
1670
1671    mErrorCause = errorCause;
1672
1673    mRequestThread->setPaused(true);
1674    mStatus = STATUS_ERROR;
1675
1676    // Notify upstream about a device error
1677    if (mListener != NULL) {
1678        mListener->notifyError(ICameraDeviceCallbacks::ERROR_CAMERA_DEVICE,
1679                CaptureResultExtras());
1680    }
1681
1682    // Save stack trace. View by dumping it later.
1683    CameraTraces::saveTrace();
1684    // TODO: consider adding errorCause and client pid/procname
1685}
1686
1687/**
1688 * In-flight request management
1689 */
1690
1691status_t Camera3Device::registerInFlight(uint32_t frameNumber,
1692        int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput) {
1693    ATRACE_CALL();
1694    Mutex::Autolock l(mInFlightLock);
1695
1696    ssize_t res;
1697    res = mInFlightMap.add(frameNumber, InFlightRequest(numBuffers, resultExtras, hasInput));
1698    if (res < 0) return res;
1699
1700    return OK;
1701}
1702
1703/**
1704 * Check if all 3A fields are ready, and send off a partial 3A-only result
1705 * to the output frame queue
1706 */
1707bool Camera3Device::processPartial3AResult(
1708        uint32_t frameNumber,
1709        const CameraMetadata& partial, const CaptureResultExtras& resultExtras) {
1710
1711    // Check if all 3A states are present
1712    // The full list of fields is
1713    //   android.control.afMode
1714    //   android.control.awbMode
1715    //   android.control.aeState
1716    //   android.control.awbState
1717    //   android.control.afState
1718    //   android.control.afTriggerID
1719    //   android.control.aePrecaptureID
1720    // TODO: Add android.control.aeMode
1721
1722    bool gotAllStates = true;
1723
1724    uint8_t afMode;
1725    uint8_t awbMode;
1726    uint8_t aeState;
1727    uint8_t afState;
1728    uint8_t awbState;
1729
1730    gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AF_MODE,
1731        &afMode, frameNumber);
1732
1733    gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AWB_MODE,
1734        &awbMode, frameNumber);
1735
1736    gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AE_STATE,
1737        &aeState, frameNumber);
1738
1739    gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AF_STATE,
1740        &afState, frameNumber);
1741
1742    gotAllStates &= get3AResult(partial, ANDROID_CONTROL_AWB_STATE,
1743        &awbState, frameNumber);
1744
1745    if (!gotAllStates) return false;
1746
1747    ALOGVV("%s: Camera %d: Frame %d, Request ID %d: AF mode %d, AWB mode %d, "
1748        "AF state %d, AE state %d, AWB state %d, "
1749        "AF trigger %d, AE precapture trigger %d",
1750        __FUNCTION__, mId, frameNumber, resultExtras.requestId,
1751        afMode, awbMode,
1752        afState, aeState, awbState,
1753        resultExtras.afTriggerId, resultExtras.precaptureTriggerId);
1754
1755    // Got all states, so construct a minimal result to send
1756    // In addition to the above fields, this means adding in
1757    //   android.request.frameCount
1758    //   android.request.requestId
1759    //   android.quirks.partialResult (for HAL version below HAL3.2)
1760
1761    const size_t kMinimal3AResultEntries = 10;
1762
1763    Mutex::Autolock l(mOutputLock);
1764
1765    CaptureResult captureResult;
1766    captureResult.mResultExtras = resultExtras;
1767    captureResult.mMetadata = CameraMetadata(kMinimal3AResultEntries, /*dataCapacity*/ 0);
1768    // TODO: change this to sp<CaptureResult>. This will need other changes, including,
1769    // but not limited to CameraDeviceBase::getNextResult
1770    CaptureResult& min3AResult =
1771            *mResultQueue.insert(mResultQueue.end(), captureResult);
1772
1773    if (!insert3AResult(min3AResult.mMetadata, ANDROID_REQUEST_FRAME_COUNT,
1774            // TODO: This is problematic casting. Need to fix CameraMetadata.
1775            reinterpret_cast<int32_t*>(&frameNumber), frameNumber)) {
1776        return false;
1777    }
1778
1779    int32_t requestId = resultExtras.requestId;
1780    if (!insert3AResult(min3AResult.mMetadata, ANDROID_REQUEST_ID,
1781            &requestId, frameNumber)) {
1782        return false;
1783    }
1784
1785    if (mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
1786        static const uint8_t partialResult = ANDROID_QUIRKS_PARTIAL_RESULT_PARTIAL;
1787        if (!insert3AResult(min3AResult.mMetadata, ANDROID_QUIRKS_PARTIAL_RESULT,
1788                &partialResult, frameNumber)) {
1789            return false;
1790        }
1791    }
1792
1793    if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AF_MODE,
1794            &afMode, frameNumber)) {
1795        return false;
1796    }
1797
1798    if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AWB_MODE,
1799            &awbMode, frameNumber)) {
1800        return false;
1801    }
1802
1803    if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AE_STATE,
1804            &aeState, frameNumber)) {
1805        return false;
1806    }
1807
1808    if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AF_STATE,
1809            &afState, frameNumber)) {
1810        return false;
1811    }
1812
1813    if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AWB_STATE,
1814            &awbState, frameNumber)) {
1815        return false;
1816    }
1817
1818    if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AF_TRIGGER_ID,
1819            &resultExtras.afTriggerId, frameNumber)) {
1820        return false;
1821    }
1822
1823    if (!insert3AResult(min3AResult.mMetadata, ANDROID_CONTROL_AE_PRECAPTURE_ID,
1824            &resultExtras.precaptureTriggerId, frameNumber)) {
1825        return false;
1826    }
1827
1828    // We only send the aggregated partial when all 3A related metadata are available
1829    // For both API1 and API2.
1830    // TODO: we probably should pass through all partials to API2 unconditionally.
1831    mResultSignal.signal();
1832
1833    return true;
1834}
1835
1836template<typename T>
1837bool Camera3Device::get3AResult(const CameraMetadata& result, int32_t tag,
1838        T* value, uint32_t frameNumber) {
1839    (void) frameNumber;
1840
1841    camera_metadata_ro_entry_t entry;
1842
1843    entry = result.find(tag);
1844    if (entry.count == 0) {
1845        ALOGVV("%s: Camera %d: Frame %d: No %s provided by HAL!", __FUNCTION__,
1846            mId, frameNumber, get_camera_metadata_tag_name(tag));
1847        return false;
1848    }
1849
1850    if (sizeof(T) == sizeof(uint8_t)) {
1851        *value = entry.data.u8[0];
1852    } else if (sizeof(T) == sizeof(int32_t)) {
1853        *value = entry.data.i32[0];
1854    } else {
1855        ALOGE("%s: Unexpected type", __FUNCTION__);
1856        return false;
1857    }
1858    return true;
1859}
1860
1861template<typename T>
1862bool Camera3Device::insert3AResult(CameraMetadata& result, int32_t tag,
1863        const T* value, uint32_t frameNumber) {
1864    if (result.update(tag, value, 1) != NO_ERROR) {
1865        mResultQueue.erase(--mResultQueue.end(), mResultQueue.end());
1866        SET_ERR("Frame %d: Failed to set %s in partial metadata",
1867                frameNumber, get_camera_metadata_tag_name(tag));
1868        return false;
1869    }
1870    return true;
1871}
1872
1873/**
1874 * Camera HAL device callback methods
1875 */
1876
1877void Camera3Device::processCaptureResult(const camera3_capture_result *result) {
1878    ATRACE_CALL();
1879
1880    status_t res;
1881
1882    uint32_t frameNumber = result->frame_number;
1883    if (result->result == NULL && result->num_output_buffers == 0 &&
1884            result->input_buffer == NULL) {
1885        SET_ERR("No result data provided by HAL for frame %d",
1886                frameNumber);
1887        return;
1888    }
1889
1890    // For HAL3.2 or above, If HAL doesn't support partial, it must always set
1891    // partial_result to 1 when metadata is included in this result.
1892    if (!mUsePartialResult &&
1893            mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2 &&
1894            result->result != NULL &&
1895            result->partial_result != 1) {
1896        SET_ERR("Result is malformed for frame %d: partial_result %u must be 1"
1897                " if partial result is not supported",
1898                frameNumber, result->partial_result);
1899        return;
1900    }
1901
1902    bool isPartialResult = false;
1903    CameraMetadata collectedPartialResult;
1904    CaptureResultExtras resultExtras;
1905    bool hasInputBufferInRequest = false;
1906
1907    // Get capture timestamp and resultExtras from list of in-flight requests,
1908    // where it was added by the shutter notification for this frame.
1909    // Then update the in-flight status and remove the in-flight entry if
1910    // all result data has been received.
1911    nsecs_t timestamp = 0;
1912    {
1913        Mutex::Autolock l(mInFlightLock);
1914        ssize_t idx = mInFlightMap.indexOfKey(frameNumber);
1915        if (idx == NAME_NOT_FOUND) {
1916            SET_ERR("Unknown frame number for capture result: %d",
1917                    frameNumber);
1918            return;
1919        }
1920        InFlightRequest &request = mInFlightMap.editValueAt(idx);
1921        ALOGVV("%s: got InFlightRequest requestId = %" PRId32 ", frameNumber = %" PRId64
1922                ", burstId = %" PRId32,
1923                __FUNCTION__, request.resultExtras.requestId, request.resultExtras.frameNumber,
1924                request.resultExtras.burstId);
1925        // Always update the partial count to the latest one. When framework aggregates adjacent
1926        // partial results into one, the latest partial count will be used.
1927        request.resultExtras.partialResultCount = result->partial_result;
1928
1929        // Check if this result carries only partial metadata
1930        if (mUsePartialResult && result->result != NULL) {
1931            if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
1932                if (result->partial_result > mNumPartialResults || result->partial_result < 1) {
1933                    SET_ERR("Result is malformed for frame %d: partial_result %u must be  in"
1934                            " the range of [1, %d] when metadata is included in the result",
1935                            frameNumber, result->partial_result, mNumPartialResults);
1936                    return;
1937                }
1938                isPartialResult = (result->partial_result < mNumPartialResults);
1939                if (isPartialResult) {
1940                    request.partialResult.collectedResult.append(result->result);
1941                }
1942            } else {
1943                camera_metadata_ro_entry_t partialResultEntry;
1944                res = find_camera_metadata_ro_entry(result->result,
1945                        ANDROID_QUIRKS_PARTIAL_RESULT, &partialResultEntry);
1946                if (res != NAME_NOT_FOUND &&
1947                        partialResultEntry.count > 0 &&
1948                        partialResultEntry.data.u8[0] ==
1949                        ANDROID_QUIRKS_PARTIAL_RESULT_PARTIAL) {
1950                    // A partial result. Flag this as such, and collect this
1951                    // set of metadata into the in-flight entry.
1952                    isPartialResult = true;
1953                    request.partialResult.collectedResult.append(
1954                        result->result);
1955                    request.partialResult.collectedResult.erase(
1956                        ANDROID_QUIRKS_PARTIAL_RESULT);
1957                }
1958            }
1959
1960            if (isPartialResult) {
1961                // Fire off a 3A-only result if possible
1962                if (!request.partialResult.haveSent3A) {
1963                    request.partialResult.haveSent3A =
1964                            processPartial3AResult(frameNumber,
1965                                    request.partialResult.collectedResult,
1966                                    request.resultExtras);
1967                }
1968            }
1969        }
1970
1971        timestamp = request.captureTimestamp;
1972        resultExtras = request.resultExtras;
1973        hasInputBufferInRequest = request.hasInputBuffer;
1974
1975        /**
1976         * One of the following must happen before it's legal to call process_capture_result,
1977         * unless partial metadata is being provided:
1978         * - CAMERA3_MSG_SHUTTER (expected during normal operation)
1979         * - CAMERA3_MSG_ERROR (expected during flush)
1980         */
1981        if (request.requestStatus == OK && timestamp == 0 && !isPartialResult) {
1982            SET_ERR("Called before shutter notify for frame %d",
1983                    frameNumber);
1984            return;
1985        }
1986
1987        // Did we get the (final) result metadata for this capture?
1988        if (result->result != NULL && !isPartialResult) {
1989            if (request.haveResultMetadata) {
1990                SET_ERR("Called multiple times with metadata for frame %d",
1991                        frameNumber);
1992                return;
1993            }
1994            if (mUsePartialResult &&
1995                    !request.partialResult.collectedResult.isEmpty()) {
1996                collectedPartialResult.acquire(
1997                    request.partialResult.collectedResult);
1998            }
1999            request.haveResultMetadata = true;
2000        }
2001
2002        uint32_t numBuffersReturned = result->num_output_buffers;
2003        if (result->input_buffer != NULL) {
2004            if (hasInputBufferInRequest) {
2005                numBuffersReturned += 1;
2006            } else {
2007                ALOGW("%s: Input buffer should be NULL if there is no input"
2008                        " buffer sent in the request",
2009                        __FUNCTION__);
2010            }
2011        }
2012        request.numBuffersLeft -= numBuffersReturned;
2013        if (request.numBuffersLeft < 0) {
2014            SET_ERR("Too many buffers returned for frame %d",
2015                    frameNumber);
2016            return;
2017        }
2018
2019        // Check if everything has arrived for this result (buffers and metadata), remove it from
2020        // InFlightMap if both arrived or HAL reports error for this request (i.e. during flush).
2021        if ((request.requestStatus != OK) ||
2022                (request.haveResultMetadata && request.numBuffersLeft == 0)) {
2023            ATRACE_ASYNC_END("frame capture", frameNumber);
2024            mInFlightMap.removeItemsAt(idx, 1);
2025        }
2026
2027        // Sanity check - if we have too many in-flight frames, something has
2028        // likely gone wrong
2029        if (mInFlightMap.size() > kInFlightWarnLimit) {
2030            CLOGE("In-flight list too large: %zu", mInFlightMap.size());
2031        }
2032
2033    }
2034
2035    // Process the result metadata, if provided
2036    bool gotResult = false;
2037    if (result->result != NULL && !isPartialResult) {
2038        Mutex::Autolock l(mOutputLock);
2039
2040        gotResult = true;
2041
2042        // TODO: need to track errors for tighter bounds on expected frame number
2043        if (frameNumber < mNextResultFrameNumber) {
2044            SET_ERR("Out-of-order capture result metadata submitted! "
2045                    "(got frame number %d, expecting %d)",
2046                    frameNumber, mNextResultFrameNumber);
2047            return;
2048        }
2049        mNextResultFrameNumber = frameNumber + 1;
2050
2051        CaptureResult captureResult;
2052        captureResult.mResultExtras = resultExtras;
2053        captureResult.mMetadata = result->result;
2054
2055        if (captureResult.mMetadata.update(ANDROID_REQUEST_FRAME_COUNT,
2056                (int32_t*)&frameNumber, 1) != OK) {
2057            SET_ERR("Failed to set frame# in metadata (%d)",
2058                    frameNumber);
2059            gotResult = false;
2060        } else {
2061            ALOGVV("%s: Camera %d: Set frame# in metadata (%d)",
2062                    __FUNCTION__, mId, frameNumber);
2063        }
2064
2065        // Append any previous partials to form a complete result
2066        if (mUsePartialResult && !collectedPartialResult.isEmpty()) {
2067            captureResult.mMetadata.append(collectedPartialResult);
2068        }
2069
2070        captureResult.mMetadata.sort();
2071
2072        // Check that there's a timestamp in the result metadata
2073
2074        camera_metadata_entry entry =
2075                captureResult.mMetadata.find(ANDROID_SENSOR_TIMESTAMP);
2076        if (entry.count == 0) {
2077            SET_ERR("No timestamp provided by HAL for frame %d!",
2078                    frameNumber);
2079            gotResult = false;
2080        } else if (timestamp != entry.data.i64[0]) {
2081            SET_ERR("Timestamp mismatch between shutter notify and result"
2082                    " metadata for frame %d (%" PRId64 " vs %" PRId64 " respectively)",
2083                    frameNumber, timestamp, entry.data.i64[0]);
2084            gotResult = false;
2085        }
2086
2087        if (gotResult) {
2088            // Valid result, insert into queue
2089            List<CaptureResult>::iterator queuedResult =
2090                    mResultQueue.insert(mResultQueue.end(), CaptureResult(captureResult));
2091            ALOGVV("%s: result requestId = %" PRId32 ", frameNumber = %" PRId64
2092                   ", burstId = %" PRId32, __FUNCTION__,
2093                   queuedResult->mResultExtras.requestId,
2094                   queuedResult->mResultExtras.frameNumber,
2095                   queuedResult->mResultExtras.burstId);
2096        }
2097    } // scope for mOutputLock
2098
2099    // Return completed buffers to their streams with the timestamp
2100
2101    for (size_t i = 0; i < result->num_output_buffers; i++) {
2102        Camera3Stream *stream =
2103                Camera3Stream::cast(result->output_buffers[i].stream);
2104        res = stream->returnBuffer(result->output_buffers[i], timestamp);
2105        // Note: stream may be deallocated at this point, if this buffer was the
2106        // last reference to it.
2107        if (res != OK) {
2108            ALOGE("Can't return buffer %zu for frame %d to its stream: "
2109                    " %s (%d)", i, frameNumber, strerror(-res), res);
2110        }
2111    }
2112
2113    if (result->input_buffer != NULL) {
2114        if (hasInputBufferInRequest) {
2115            Camera3Stream *stream =
2116                Camera3Stream::cast(result->input_buffer->stream);
2117            res = stream->returnInputBuffer(*(result->input_buffer));
2118            // Note: stream may be deallocated at this point, if this buffer was the
2119            // last reference to it.
2120            if (res != OK) {
2121                ALOGE("%s: RequestThread: Can't return input buffer for frame %d to"
2122                      "  its stream:%s (%d)",  __FUNCTION__,
2123                      frameNumber, strerror(-res), res);
2124            }
2125        } else {
2126            ALOGW("%s: Input buffer should be NULL if there is no input"
2127                    " buffer sent in the request, skipping input buffer return.",
2128                    __FUNCTION__);
2129        }
2130    }
2131
2132    // Finally, signal any waiters for new frames
2133
2134    if (gotResult) {
2135        mResultSignal.signal();
2136    }
2137
2138}
2139
2140void Camera3Device::notify(const camera3_notify_msg *msg) {
2141    ATRACE_CALL();
2142    NotificationListener *listener;
2143    {
2144        Mutex::Autolock l(mOutputLock);
2145        listener = mListener;
2146    }
2147
2148    if (msg == NULL) {
2149        SET_ERR("HAL sent NULL notify message!");
2150        return;
2151    }
2152
2153    switch (msg->type) {
2154        case CAMERA3_MSG_ERROR: {
2155            notifyError(msg->message.error, listener);
2156            break;
2157        }
2158        case CAMERA3_MSG_SHUTTER: {
2159            notifyShutter(msg->message.shutter, listener);
2160            break;
2161        }
2162        default:
2163            SET_ERR("Unknown notify message from HAL: %d",
2164                    msg->type);
2165    }
2166}
2167
2168void Camera3Device::notifyError(const camera3_error_msg_t &msg,
2169        NotificationListener *listener) {
2170
2171    // Map camera HAL error codes to ICameraDeviceCallback error codes
2172    // Index into this with the HAL error code
2173    static const ICameraDeviceCallbacks::CameraErrorCode
2174            halErrorMap[CAMERA3_MSG_NUM_ERRORS] = {
2175        // 0 = Unused error code
2176        ICameraDeviceCallbacks::ERROR_CAMERA_INVALID_ERROR,
2177        // 1 = CAMERA3_MSG_ERROR_DEVICE
2178        ICameraDeviceCallbacks::ERROR_CAMERA_DEVICE,
2179        // 2 = CAMERA3_MSG_ERROR_REQUEST
2180        ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST,
2181        // 3 = CAMERA3_MSG_ERROR_RESULT
2182        ICameraDeviceCallbacks::ERROR_CAMERA_RESULT,
2183        // 4 = CAMERA3_MSG_ERROR_BUFFER
2184        ICameraDeviceCallbacks::ERROR_CAMERA_BUFFER
2185    };
2186
2187    ICameraDeviceCallbacks::CameraErrorCode errorCode =
2188            ((msg.error_code >= 0) &&
2189                    (msg.error_code < CAMERA3_MSG_NUM_ERRORS)) ?
2190            halErrorMap[msg.error_code] :
2191            ICameraDeviceCallbacks::ERROR_CAMERA_INVALID_ERROR;
2192
2193    int streamId = 0;
2194    if (msg.error_stream != NULL) {
2195        Camera3Stream *stream =
2196                Camera3Stream::cast(msg.error_stream);
2197        streamId = stream->getId();
2198    }
2199    ALOGV("Camera %d: %s: HAL error, frame %d, stream %d: %d",
2200            mId, __FUNCTION__, msg.frame_number,
2201            streamId, msg.error_code);
2202
2203    CaptureResultExtras resultExtras;
2204    switch (errorCode) {
2205        case ICameraDeviceCallbacks::ERROR_CAMERA_DEVICE:
2206            // SET_ERR calls notifyError
2207            SET_ERR("Camera HAL reported serious device error");
2208            break;
2209        case ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST:
2210        case ICameraDeviceCallbacks::ERROR_CAMERA_RESULT:
2211        case ICameraDeviceCallbacks::ERROR_CAMERA_BUFFER:
2212            {
2213                Mutex::Autolock l(mInFlightLock);
2214                ssize_t idx = mInFlightMap.indexOfKey(msg.frame_number);
2215                if (idx >= 0) {
2216                    InFlightRequest &r = mInFlightMap.editValueAt(idx);
2217                    r.requestStatus = msg.error_code;
2218                    resultExtras = r.resultExtras;
2219                } else {
2220                    resultExtras.frameNumber = msg.frame_number;
2221                    ALOGE("Camera %d: %s: cannot find in-flight request on "
2222                            "frame %" PRId64 " error", mId, __FUNCTION__,
2223                            resultExtras.frameNumber);
2224                }
2225            }
2226            if (listener != NULL) {
2227                listener->notifyError(errorCode, resultExtras);
2228            } else {
2229                ALOGE("Camera %d: %s: no listener available", mId, __FUNCTION__);
2230            }
2231            break;
2232        default:
2233            // SET_ERR calls notifyError
2234            SET_ERR("Unknown error message from HAL: %d", msg.error_code);
2235            break;
2236    }
2237}
2238
2239void Camera3Device::notifyShutter(const camera3_shutter_msg_t &msg,
2240        NotificationListener *listener) {
2241    ssize_t idx;
2242    // Verify ordering of shutter notifications
2243    {
2244        Mutex::Autolock l(mOutputLock);
2245        // TODO: need to track errors for tighter bounds on expected frame number.
2246        if (msg.frame_number < mNextShutterFrameNumber) {
2247            SET_ERR("Shutter notification out-of-order. Expected "
2248                    "notification for frame %d, got frame %d",
2249                    mNextShutterFrameNumber, msg.frame_number);
2250            return;
2251        }
2252        mNextShutterFrameNumber = msg.frame_number + 1;
2253    }
2254
2255    CaptureResultExtras resultExtras;
2256
2257    // Set timestamp for the request in the in-flight tracking
2258    // and get the request ID to send upstream
2259    {
2260        Mutex::Autolock l(mInFlightLock);
2261        idx = mInFlightMap.indexOfKey(msg.frame_number);
2262        if (idx >= 0) {
2263            InFlightRequest &r = mInFlightMap.editValueAt(idx);
2264            r.captureTimestamp = msg.timestamp;
2265            resultExtras = r.resultExtras;
2266        }
2267    }
2268    if (idx < 0) {
2269        SET_ERR("Shutter notification for non-existent frame number %d",
2270                msg.frame_number);
2271        return;
2272    }
2273    ALOGVV("Camera %d: %s: Shutter fired for frame %d (id %d) at %" PRId64,
2274            mId, __FUNCTION__,
2275            msg.frame_number, resultExtras.requestId, msg.timestamp);
2276    // Call listener, if any
2277    if (listener != NULL) {
2278        listener->notifyShutter(resultExtras, msg.timestamp);
2279    }
2280}
2281
2282
2283CameraMetadata Camera3Device::getLatestRequestLocked() {
2284    ALOGV("%s", __FUNCTION__);
2285
2286    CameraMetadata retVal;
2287
2288    if (mRequestThread != NULL) {
2289        retVal = mRequestThread->getLatestRequest();
2290    }
2291
2292    return retVal;
2293}
2294
2295
2296/**
2297 * RequestThread inner class methods
2298 */
2299
2300Camera3Device::RequestThread::RequestThread(wp<Camera3Device> parent,
2301        sp<StatusTracker> statusTracker,
2302        camera3_device_t *hal3Device) :
2303        Thread(false),
2304        mParent(parent),
2305        mStatusTracker(statusTracker),
2306        mHal3Device(hal3Device),
2307        mId(getId(parent)),
2308        mReconfigured(false),
2309        mDoPause(false),
2310        mPaused(true),
2311        mFrameNumber(0),
2312        mLatestRequestId(NAME_NOT_FOUND),
2313        mCurrentAfTriggerId(0),
2314        mCurrentPreCaptureTriggerId(0),
2315        mRepeatingLastFrameNumber(NO_IN_FLIGHT_REPEATING_FRAMES) {
2316    mStatusId = statusTracker->addComponent();
2317}
2318
2319void Camera3Device::RequestThread::setNotifyCallback(
2320        NotificationListener *listener) {
2321    Mutex::Autolock l(mRequestLock);
2322    mListener = listener;
2323}
2324
2325void Camera3Device::RequestThread::configurationComplete() {
2326    Mutex::Autolock l(mRequestLock);
2327    mReconfigured = true;
2328}
2329
2330status_t Camera3Device::RequestThread::queueRequestList(
2331        List<sp<CaptureRequest> > &requests,
2332        /*out*/
2333        int64_t *lastFrameNumber) {
2334    Mutex::Autolock l(mRequestLock);
2335    for (List<sp<CaptureRequest> >::iterator it = requests.begin(); it != requests.end();
2336            ++it) {
2337        mRequestQueue.push_back(*it);
2338    }
2339
2340    if (lastFrameNumber != NULL) {
2341        *lastFrameNumber = mFrameNumber + mRequestQueue.size() - 1;
2342        ALOGV("%s: requestId %d, mFrameNumber %" PRId32 ", lastFrameNumber %" PRId64 ".",
2343              __FUNCTION__, (*(requests.begin()))->mResultExtras.requestId, mFrameNumber,
2344              *lastFrameNumber);
2345    }
2346
2347    unpauseForNewRequests();
2348
2349    return OK;
2350}
2351
2352
2353status_t Camera3Device::RequestThread::queueTrigger(
2354        RequestTrigger trigger[],
2355        size_t count) {
2356
2357    Mutex::Autolock l(mTriggerMutex);
2358    status_t ret;
2359
2360    for (size_t i = 0; i < count; ++i) {
2361        ret = queueTriggerLocked(trigger[i]);
2362
2363        if (ret != OK) {
2364            return ret;
2365        }
2366    }
2367
2368    return OK;
2369}
2370
2371int Camera3Device::RequestThread::getId(const wp<Camera3Device> &device) {
2372    sp<Camera3Device> d = device.promote();
2373    if (d != NULL) return d->mId;
2374    return 0;
2375}
2376
2377status_t Camera3Device::RequestThread::queueTriggerLocked(
2378        RequestTrigger trigger) {
2379
2380    uint32_t tag = trigger.metadataTag;
2381    ssize_t index = mTriggerMap.indexOfKey(tag);
2382
2383    switch (trigger.getTagType()) {
2384        case TYPE_BYTE:
2385        // fall-through
2386        case TYPE_INT32:
2387            break;
2388        default:
2389            ALOGE("%s: Type not supported: 0x%x", __FUNCTION__,
2390                    trigger.getTagType());
2391            return INVALID_OPERATION;
2392    }
2393
2394    /**
2395     * Collect only the latest trigger, since we only have 1 field
2396     * in the request settings per trigger tag, and can't send more than 1
2397     * trigger per request.
2398     */
2399    if (index != NAME_NOT_FOUND) {
2400        mTriggerMap.editValueAt(index) = trigger;
2401    } else {
2402        mTriggerMap.add(tag, trigger);
2403    }
2404
2405    return OK;
2406}
2407
2408status_t Camera3Device::RequestThread::setRepeatingRequests(
2409        const RequestList &requests,
2410        /*out*/
2411        int64_t *lastFrameNumber) {
2412    Mutex::Autolock l(mRequestLock);
2413    if (lastFrameNumber != NULL) {
2414        *lastFrameNumber = mRepeatingLastFrameNumber;
2415    }
2416    mRepeatingRequests.clear();
2417    mRepeatingRequests.insert(mRepeatingRequests.begin(),
2418            requests.begin(), requests.end());
2419
2420    unpauseForNewRequests();
2421
2422    mRepeatingLastFrameNumber = NO_IN_FLIGHT_REPEATING_FRAMES;
2423    return OK;
2424}
2425
2426bool Camera3Device::RequestThread::isRepeatingRequestLocked(const sp<CaptureRequest> requestIn) {
2427    if (mRepeatingRequests.empty()) {
2428        return false;
2429    }
2430    int32_t requestId = requestIn->mResultExtras.requestId;
2431    const RequestList &repeatRequests = mRepeatingRequests;
2432    // All repeating requests are guaranteed to have same id so only check first quest
2433    const sp<CaptureRequest> firstRequest = *repeatRequests.begin();
2434    return (firstRequest->mResultExtras.requestId == requestId);
2435}
2436
2437status_t Camera3Device::RequestThread::clearRepeatingRequests(/*out*/int64_t *lastFrameNumber) {
2438    Mutex::Autolock l(mRequestLock);
2439    mRepeatingRequests.clear();
2440    if (lastFrameNumber != NULL) {
2441        *lastFrameNumber = mRepeatingLastFrameNumber;
2442    }
2443    mRepeatingLastFrameNumber = NO_IN_FLIGHT_REPEATING_FRAMES;
2444    return OK;
2445}
2446
2447status_t Camera3Device::RequestThread::clear(
2448        NotificationListener *listener,
2449        /*out*/int64_t *lastFrameNumber) {
2450    Mutex::Autolock l(mRequestLock);
2451    ALOGV("RequestThread::%s:", __FUNCTION__);
2452
2453    mRepeatingRequests.clear();
2454
2455    // Send errors for all requests pending in the request queue, including
2456    // pending repeating requests
2457    if (listener != NULL) {
2458        for (RequestList::iterator it = mRequestQueue.begin();
2459                 it != mRequestQueue.end(); ++it) {
2460            // Set the frame number this request would have had, if it
2461            // had been submitted; this frame number will not be reused.
2462            // The requestId and burstId fields were set when the request was
2463            // submitted originally (in convertMetadataListToRequestListLocked)
2464            (*it)->mResultExtras.frameNumber = mFrameNumber++;
2465            listener->notifyError(ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST,
2466                    (*it)->mResultExtras);
2467        }
2468    }
2469    mRequestQueue.clear();
2470    mTriggerMap.clear();
2471    if (lastFrameNumber != NULL) {
2472        *lastFrameNumber = mRepeatingLastFrameNumber;
2473    }
2474    mRepeatingLastFrameNumber = NO_IN_FLIGHT_REPEATING_FRAMES;
2475    return OK;
2476}
2477
2478void Camera3Device::RequestThread::setPaused(bool paused) {
2479    Mutex::Autolock l(mPauseLock);
2480    mDoPause = paused;
2481    mDoPauseSignal.signal();
2482}
2483
2484status_t Camera3Device::RequestThread::waitUntilRequestProcessed(
2485        int32_t requestId, nsecs_t timeout) {
2486    Mutex::Autolock l(mLatestRequestMutex);
2487    status_t res;
2488    while (mLatestRequestId != requestId) {
2489        nsecs_t startTime = systemTime();
2490
2491        res = mLatestRequestSignal.waitRelative(mLatestRequestMutex, timeout);
2492        if (res != OK) return res;
2493
2494        timeout -= (systemTime() - startTime);
2495    }
2496
2497    return OK;
2498}
2499
2500void Camera3Device::RequestThread::requestExit() {
2501    // Call parent to set up shutdown
2502    Thread::requestExit();
2503    // The exit from any possible waits
2504    mDoPauseSignal.signal();
2505    mRequestSignal.signal();
2506}
2507
2508bool Camera3Device::RequestThread::threadLoop() {
2509
2510    status_t res;
2511
2512    // Handle paused state.
2513    if (waitIfPaused()) {
2514        return true;
2515    }
2516
2517    // Get work to do
2518
2519    sp<CaptureRequest> nextRequest = waitForNextRequest();
2520    if (nextRequest == NULL) {
2521        return true;
2522    }
2523
2524    // Create request to HAL
2525    camera3_capture_request_t request = camera3_capture_request_t();
2526    request.frame_number = nextRequest->mResultExtras.frameNumber;
2527    Vector<camera3_stream_buffer_t> outputBuffers;
2528
2529    // Get the request ID, if any
2530    int requestId;
2531    camera_metadata_entry_t requestIdEntry =
2532            nextRequest->mSettings.find(ANDROID_REQUEST_ID);
2533    if (requestIdEntry.count > 0) {
2534        requestId = requestIdEntry.data.i32[0];
2535    } else {
2536        ALOGW("%s: Did not have android.request.id set in the request",
2537                __FUNCTION__);
2538        requestId = NAME_NOT_FOUND;
2539    }
2540
2541    // Insert any queued triggers (before metadata is locked)
2542    int32_t triggerCount;
2543    res = insertTriggers(nextRequest);
2544    if (res < 0) {
2545        SET_ERR("RequestThread: Unable to insert triggers "
2546                "(capture request %d, HAL device: %s (%d)",
2547                request.frame_number, strerror(-res), res);
2548        cleanUpFailedRequest(request, nextRequest, outputBuffers);
2549        return false;
2550    }
2551    triggerCount = res;
2552
2553    bool triggersMixedIn = (triggerCount > 0 || mPrevTriggers > 0);
2554
2555    // If the request is the same as last, or we had triggers last time
2556    if (mPrevRequest != nextRequest || triggersMixedIn) {
2557        /**
2558         * HAL workaround:
2559         * Insert a dummy trigger ID if a trigger is set but no trigger ID is
2560         */
2561        res = addDummyTriggerIds(nextRequest);
2562        if (res != OK) {
2563            SET_ERR("RequestThread: Unable to insert dummy trigger IDs "
2564                    "(capture request %d, HAL device: %s (%d)",
2565                    request.frame_number, strerror(-res), res);
2566            cleanUpFailedRequest(request, nextRequest, outputBuffers);
2567            return false;
2568        }
2569
2570        /**
2571         * The request should be presorted so accesses in HAL
2572         *   are O(logn). Sidenote, sorting a sorted metadata is nop.
2573         */
2574        nextRequest->mSettings.sort();
2575        request.settings = nextRequest->mSettings.getAndLock();
2576        mPrevRequest = nextRequest;
2577        ALOGVV("%s: Request settings are NEW", __FUNCTION__);
2578
2579        IF_ALOGV() {
2580            camera_metadata_ro_entry_t e = camera_metadata_ro_entry_t();
2581            find_camera_metadata_ro_entry(
2582                    request.settings,
2583                    ANDROID_CONTROL_AF_TRIGGER,
2584                    &e
2585            );
2586            if (e.count > 0) {
2587                ALOGV("%s: Request (frame num %d) had AF trigger 0x%x",
2588                      __FUNCTION__,
2589                      request.frame_number,
2590                      e.data.u8[0]);
2591            }
2592        }
2593    } else {
2594        // leave request.settings NULL to indicate 'reuse latest given'
2595        ALOGVV("%s: Request settings are REUSED",
2596               __FUNCTION__);
2597    }
2598
2599    camera3_stream_buffer_t inputBuffer;
2600    uint32_t totalNumBuffers = 0;
2601
2602    // Fill in buffers
2603
2604    if (nextRequest->mInputStream != NULL) {
2605        request.input_buffer = &inputBuffer;
2606        res = nextRequest->mInputStream->getInputBuffer(&inputBuffer);
2607        if (res != OK) {
2608            // Can't get input buffer from gralloc queue - this could be due to
2609            // disconnected queue or other producer misbehavior, so not a fatal
2610            // error
2611            ALOGE("RequestThread: Can't get input buffer, skipping request:"
2612                    " %s (%d)", strerror(-res), res);
2613            Mutex::Autolock l(mRequestLock);
2614            if (mListener != NULL) {
2615                mListener->notifyError(
2616                        ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST,
2617                        nextRequest->mResultExtras);
2618            }
2619            cleanUpFailedRequest(request, nextRequest, outputBuffers);
2620            return true;
2621        }
2622        totalNumBuffers += 1;
2623    } else {
2624        request.input_buffer = NULL;
2625    }
2626
2627    outputBuffers.insertAt(camera3_stream_buffer_t(), 0,
2628            nextRequest->mOutputStreams.size());
2629    request.output_buffers = outputBuffers.array();
2630    for (size_t i = 0; i < nextRequest->mOutputStreams.size(); i++) {
2631        res = nextRequest->mOutputStreams.editItemAt(i)->
2632                getBuffer(&outputBuffers.editItemAt(i));
2633        if (res != OK) {
2634            // Can't get output buffer from gralloc queue - this could be due to
2635            // abandoned queue or other consumer misbehavior, so not a fatal
2636            // error
2637            ALOGE("RequestThread: Can't get output buffer, skipping request:"
2638                    " %s (%d)", strerror(-res), res);
2639            Mutex::Autolock l(mRequestLock);
2640            if (mListener != NULL) {
2641                mListener->notifyError(
2642                        ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST,
2643                        nextRequest->mResultExtras);
2644            }
2645            cleanUpFailedRequest(request, nextRequest, outputBuffers);
2646            return true;
2647        }
2648        request.num_output_buffers++;
2649    }
2650    totalNumBuffers += request.num_output_buffers;
2651
2652    // Log request in the in-flight queue
2653    sp<Camera3Device> parent = mParent.promote();
2654    if (parent == NULL) {
2655        // Should not happen, and nowhere to send errors to, so just log it
2656        CLOGE("RequestThread: Parent is gone");
2657        cleanUpFailedRequest(request, nextRequest, outputBuffers);
2658        return false;
2659    }
2660
2661    res = parent->registerInFlight(request.frame_number,
2662            totalNumBuffers, nextRequest->mResultExtras,
2663            /*hasInput*/request.input_buffer != NULL);
2664    ALOGVV("%s: registered in flight requestId = %" PRId32 ", frameNumber = %" PRId64
2665           ", burstId = %" PRId32 ".",
2666            __FUNCTION__,
2667            nextRequest->mResultExtras.requestId, nextRequest->mResultExtras.frameNumber,
2668            nextRequest->mResultExtras.burstId);
2669    if (res != OK) {
2670        SET_ERR("RequestThread: Unable to register new in-flight request:"
2671                " %s (%d)", strerror(-res), res);
2672        cleanUpFailedRequest(request, nextRequest, outputBuffers);
2673        return false;
2674    }
2675
2676    // Inform waitUntilRequestProcessed thread of a new request ID
2677    {
2678        Mutex::Autolock al(mLatestRequestMutex);
2679
2680        mLatestRequestId = requestId;
2681        mLatestRequestSignal.signal();
2682    }
2683
2684    // Submit request and block until ready for next one
2685    ATRACE_ASYNC_BEGIN("frame capture", request.frame_number);
2686    ATRACE_BEGIN("camera3->process_capture_request");
2687    res = mHal3Device->ops->process_capture_request(mHal3Device, &request);
2688    ATRACE_END();
2689
2690    if (res != OK) {
2691        // Should only get a failure here for malformed requests or device-level
2692        // errors, so consider all errors fatal.  Bad metadata failures should
2693        // come through notify.
2694        SET_ERR("RequestThread: Unable to submit capture request %d to HAL"
2695                " device: %s (%d)", request.frame_number, strerror(-res), res);
2696        cleanUpFailedRequest(request, nextRequest, outputBuffers);
2697        return false;
2698    }
2699
2700    // Update the latest request sent to HAL
2701    if (request.settings != NULL) { // Don't update them if they were unchanged
2702        Mutex::Autolock al(mLatestRequestMutex);
2703
2704        camera_metadata_t* cloned = clone_camera_metadata(request.settings);
2705        mLatestRequest.acquire(cloned);
2706    }
2707
2708    if (request.settings != NULL) {
2709        nextRequest->mSettings.unlock(request.settings);
2710    }
2711
2712    // Remove any previously queued triggers (after unlock)
2713    res = removeTriggers(mPrevRequest);
2714    if (res != OK) {
2715        SET_ERR("RequestThread: Unable to remove triggers "
2716              "(capture request %d, HAL device: %s (%d)",
2717              request.frame_number, strerror(-res), res);
2718        return false;
2719    }
2720    mPrevTriggers = triggerCount;
2721
2722    return true;
2723}
2724
2725CameraMetadata Camera3Device::RequestThread::getLatestRequest() const {
2726    Mutex::Autolock al(mLatestRequestMutex);
2727
2728    ALOGV("RequestThread::%s", __FUNCTION__);
2729
2730    return mLatestRequest;
2731}
2732
2733
2734void Camera3Device::RequestThread::cleanUpFailedRequest(
2735        camera3_capture_request_t &request,
2736        sp<CaptureRequest> &nextRequest,
2737        Vector<camera3_stream_buffer_t> &outputBuffers) {
2738
2739    if (request.settings != NULL) {
2740        nextRequest->mSettings.unlock(request.settings);
2741    }
2742    if (request.input_buffer != NULL) {
2743        request.input_buffer->status = CAMERA3_BUFFER_STATUS_ERROR;
2744        nextRequest->mInputStream->returnInputBuffer(*(request.input_buffer));
2745    }
2746    for (size_t i = 0; i < request.num_output_buffers; i++) {
2747        outputBuffers.editItemAt(i).status = CAMERA3_BUFFER_STATUS_ERROR;
2748        nextRequest->mOutputStreams.editItemAt(i)->returnBuffer(
2749            outputBuffers[i], 0);
2750    }
2751}
2752
2753sp<Camera3Device::CaptureRequest>
2754        Camera3Device::RequestThread::waitForNextRequest() {
2755    status_t res;
2756    sp<CaptureRequest> nextRequest;
2757
2758    // Optimized a bit for the simple steady-state case (single repeating
2759    // request), to avoid putting that request in the queue temporarily.
2760    Mutex::Autolock l(mRequestLock);
2761
2762    while (mRequestQueue.empty()) {
2763        if (!mRepeatingRequests.empty()) {
2764            // Always atomically enqueue all requests in a repeating request
2765            // list. Guarantees a complete in-sequence set of captures to
2766            // application.
2767            const RequestList &requests = mRepeatingRequests;
2768            RequestList::const_iterator firstRequest =
2769                    requests.begin();
2770            nextRequest = *firstRequest;
2771            mRequestQueue.insert(mRequestQueue.end(),
2772                    ++firstRequest,
2773                    requests.end());
2774            // No need to wait any longer
2775
2776            mRepeatingLastFrameNumber = mFrameNumber + requests.size() - 1;
2777
2778            break;
2779        }
2780
2781        res = mRequestSignal.waitRelative(mRequestLock, kRequestTimeout);
2782
2783        if ((mRequestQueue.empty() && mRepeatingRequests.empty()) ||
2784                exitPending()) {
2785            Mutex::Autolock pl(mPauseLock);
2786            if (mPaused == false) {
2787                ALOGV("%s: RequestThread: Going idle", __FUNCTION__);
2788                mPaused = true;
2789                // Let the tracker know
2790                sp<StatusTracker> statusTracker = mStatusTracker.promote();
2791                if (statusTracker != 0) {
2792                    statusTracker->markComponentIdle(mStatusId, Fence::NO_FENCE);
2793                }
2794            }
2795            // Stop waiting for now and let thread management happen
2796            return NULL;
2797        }
2798    }
2799
2800    if (nextRequest == NULL) {
2801        // Don't have a repeating request already in hand, so queue
2802        // must have an entry now.
2803        RequestList::iterator firstRequest =
2804                mRequestQueue.begin();
2805        nextRequest = *firstRequest;
2806        mRequestQueue.erase(firstRequest);
2807    }
2808
2809    // In case we've been unpaused by setPaused clearing mDoPause, need to
2810    // update internal pause state (capture/setRepeatingRequest unpause
2811    // directly).
2812    Mutex::Autolock pl(mPauseLock);
2813    if (mPaused) {
2814        ALOGV("%s: RequestThread: Unpaused", __FUNCTION__);
2815        sp<StatusTracker> statusTracker = mStatusTracker.promote();
2816        if (statusTracker != 0) {
2817            statusTracker->markComponentActive(mStatusId);
2818        }
2819    }
2820    mPaused = false;
2821
2822    // Check if we've reconfigured since last time, and reset the preview
2823    // request if so. Can't use 'NULL request == repeat' across configure calls.
2824    if (mReconfigured) {
2825        mPrevRequest.clear();
2826        mReconfigured = false;
2827    }
2828
2829    if (nextRequest != NULL) {
2830        nextRequest->mResultExtras.frameNumber = mFrameNumber++;
2831        nextRequest->mResultExtras.afTriggerId = mCurrentAfTriggerId;
2832        nextRequest->mResultExtras.precaptureTriggerId = mCurrentPreCaptureTriggerId;
2833    }
2834    return nextRequest;
2835}
2836
2837bool Camera3Device::RequestThread::waitIfPaused() {
2838    status_t res;
2839    Mutex::Autolock l(mPauseLock);
2840    while (mDoPause) {
2841        if (mPaused == false) {
2842            mPaused = true;
2843            ALOGV("%s: RequestThread: Paused", __FUNCTION__);
2844            // Let the tracker know
2845            sp<StatusTracker> statusTracker = mStatusTracker.promote();
2846            if (statusTracker != 0) {
2847                statusTracker->markComponentIdle(mStatusId, Fence::NO_FENCE);
2848            }
2849        }
2850
2851        res = mDoPauseSignal.waitRelative(mPauseLock, kRequestTimeout);
2852        if (res == TIMED_OUT || exitPending()) {
2853            return true;
2854        }
2855    }
2856    // We don't set mPaused to false here, because waitForNextRequest needs
2857    // to further manage the paused state in case of starvation.
2858    return false;
2859}
2860
2861void Camera3Device::RequestThread::unpauseForNewRequests() {
2862    // With work to do, mark thread as unpaused.
2863    // If paused by request (setPaused), don't resume, to avoid
2864    // extra signaling/waiting overhead to waitUntilPaused
2865    mRequestSignal.signal();
2866    Mutex::Autolock p(mPauseLock);
2867    if (!mDoPause) {
2868        ALOGV("%s: RequestThread: Going active", __FUNCTION__);
2869        if (mPaused) {
2870            sp<StatusTracker> statusTracker = mStatusTracker.promote();
2871            if (statusTracker != 0) {
2872                statusTracker->markComponentActive(mStatusId);
2873            }
2874        }
2875        mPaused = false;
2876    }
2877}
2878
2879void Camera3Device::RequestThread::setErrorState(const char *fmt, ...) {
2880    sp<Camera3Device> parent = mParent.promote();
2881    if (parent != NULL) {
2882        va_list args;
2883        va_start(args, fmt);
2884
2885        parent->setErrorStateV(fmt, args);
2886
2887        va_end(args);
2888    }
2889}
2890
2891status_t Camera3Device::RequestThread::insertTriggers(
2892        const sp<CaptureRequest> &request) {
2893
2894    Mutex::Autolock al(mTriggerMutex);
2895
2896    sp<Camera3Device> parent = mParent.promote();
2897    if (parent == NULL) {
2898        CLOGE("RequestThread: Parent is gone");
2899        return DEAD_OBJECT;
2900    }
2901
2902    CameraMetadata &metadata = request->mSettings;
2903    size_t count = mTriggerMap.size();
2904
2905    for (size_t i = 0; i < count; ++i) {
2906        RequestTrigger trigger = mTriggerMap.valueAt(i);
2907        uint32_t tag = trigger.metadataTag;
2908
2909        if (tag == ANDROID_CONTROL_AF_TRIGGER_ID || tag == ANDROID_CONTROL_AE_PRECAPTURE_ID) {
2910            bool isAeTrigger = (trigger.metadataTag == ANDROID_CONTROL_AE_PRECAPTURE_ID);
2911            uint32_t triggerId = static_cast<uint32_t>(trigger.entryValue);
2912            if (isAeTrigger) {
2913                request->mResultExtras.precaptureTriggerId = triggerId;
2914                mCurrentPreCaptureTriggerId = triggerId;
2915            } else {
2916                request->mResultExtras.afTriggerId = triggerId;
2917                mCurrentAfTriggerId = triggerId;
2918            }
2919            if (parent->mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
2920                continue; // Trigger ID tag is deprecated since device HAL 3.2
2921            }
2922        }
2923
2924        camera_metadata_entry entry = metadata.find(tag);
2925
2926        if (entry.count > 0) {
2927            /**
2928             * Already has an entry for this trigger in the request.
2929             * Rewrite it with our requested trigger value.
2930             */
2931            RequestTrigger oldTrigger = trigger;
2932
2933            oldTrigger.entryValue = entry.data.u8[0];
2934
2935            mTriggerReplacedMap.add(tag, oldTrigger);
2936        } else {
2937            /**
2938             * More typical, no trigger entry, so we just add it
2939             */
2940            mTriggerRemovedMap.add(tag, trigger);
2941        }
2942
2943        status_t res;
2944
2945        switch (trigger.getTagType()) {
2946            case TYPE_BYTE: {
2947                uint8_t entryValue = static_cast<uint8_t>(trigger.entryValue);
2948                res = metadata.update(tag,
2949                                      &entryValue,
2950                                      /*count*/1);
2951                break;
2952            }
2953            case TYPE_INT32:
2954                res = metadata.update(tag,
2955                                      &trigger.entryValue,
2956                                      /*count*/1);
2957                break;
2958            default:
2959                ALOGE("%s: Type not supported: 0x%x",
2960                      __FUNCTION__,
2961                      trigger.getTagType());
2962                return INVALID_OPERATION;
2963        }
2964
2965        if (res != OK) {
2966            ALOGE("%s: Failed to update request metadata with trigger tag %s"
2967                  ", value %d", __FUNCTION__, trigger.getTagName(),
2968                  trigger.entryValue);
2969            return res;
2970        }
2971
2972        ALOGV("%s: Mixed in trigger %s, value %d", __FUNCTION__,
2973              trigger.getTagName(),
2974              trigger.entryValue);
2975    }
2976
2977    mTriggerMap.clear();
2978
2979    return count;
2980}
2981
2982status_t Camera3Device::RequestThread::removeTriggers(
2983        const sp<CaptureRequest> &request) {
2984    Mutex::Autolock al(mTriggerMutex);
2985
2986    CameraMetadata &metadata = request->mSettings;
2987
2988    /**
2989     * Replace all old entries with their old values.
2990     */
2991    for (size_t i = 0; i < mTriggerReplacedMap.size(); ++i) {
2992        RequestTrigger trigger = mTriggerReplacedMap.valueAt(i);
2993
2994        status_t res;
2995
2996        uint32_t tag = trigger.metadataTag;
2997        switch (trigger.getTagType()) {
2998            case TYPE_BYTE: {
2999                uint8_t entryValue = static_cast<uint8_t>(trigger.entryValue);
3000                res = metadata.update(tag,
3001                                      &entryValue,
3002                                      /*count*/1);
3003                break;
3004            }
3005            case TYPE_INT32:
3006                res = metadata.update(tag,
3007                                      &trigger.entryValue,
3008                                      /*count*/1);
3009                break;
3010            default:
3011                ALOGE("%s: Type not supported: 0x%x",
3012                      __FUNCTION__,
3013                      trigger.getTagType());
3014                return INVALID_OPERATION;
3015        }
3016
3017        if (res != OK) {
3018            ALOGE("%s: Failed to restore request metadata with trigger tag %s"
3019                  ", trigger value %d", __FUNCTION__,
3020                  trigger.getTagName(), trigger.entryValue);
3021            return res;
3022        }
3023    }
3024    mTriggerReplacedMap.clear();
3025
3026    /**
3027     * Remove all new entries.
3028     */
3029    for (size_t i = 0; i < mTriggerRemovedMap.size(); ++i) {
3030        RequestTrigger trigger = mTriggerRemovedMap.valueAt(i);
3031        status_t res = metadata.erase(trigger.metadataTag);
3032
3033        if (res != OK) {
3034            ALOGE("%s: Failed to erase metadata with trigger tag %s"
3035                  ", trigger value %d", __FUNCTION__,
3036                  trigger.getTagName(), trigger.entryValue);
3037            return res;
3038        }
3039    }
3040    mTriggerRemovedMap.clear();
3041
3042    return OK;
3043}
3044
3045status_t Camera3Device::RequestThread::addDummyTriggerIds(
3046        const sp<CaptureRequest> &request) {
3047    // Trigger ID 0 has special meaning in the HAL2 spec, so avoid it here
3048    static const int32_t dummyTriggerId = 1;
3049    status_t res;
3050
3051    CameraMetadata &metadata = request->mSettings;
3052
3053    // If AF trigger is active, insert a dummy AF trigger ID if none already
3054    // exists
3055    camera_metadata_entry afTrigger = metadata.find(ANDROID_CONTROL_AF_TRIGGER);
3056    camera_metadata_entry afId = metadata.find(ANDROID_CONTROL_AF_TRIGGER_ID);
3057    if (afTrigger.count > 0 &&
3058            afTrigger.data.u8[0] != ANDROID_CONTROL_AF_TRIGGER_IDLE &&
3059            afId.count == 0) {
3060        res = metadata.update(ANDROID_CONTROL_AF_TRIGGER_ID, &dummyTriggerId, 1);
3061        if (res != OK) return res;
3062    }
3063
3064    // If AE precapture trigger is active, insert a dummy precapture trigger ID
3065    // if none already exists
3066    camera_metadata_entry pcTrigger =
3067            metadata.find(ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER);
3068    camera_metadata_entry pcId = metadata.find(ANDROID_CONTROL_AE_PRECAPTURE_ID);
3069    if (pcTrigger.count > 0 &&
3070            pcTrigger.data.u8[0] != ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER_IDLE &&
3071            pcId.count == 0) {
3072        res = metadata.update(ANDROID_CONTROL_AE_PRECAPTURE_ID,
3073                &dummyTriggerId, 1);
3074        if (res != OK) return res;
3075    }
3076
3077    return OK;
3078}
3079
3080
3081/**
3082 * Static callback forwarding methods from HAL to instance
3083 */
3084
3085void Camera3Device::sProcessCaptureResult(const camera3_callback_ops *cb,
3086        const camera3_capture_result *result) {
3087    Camera3Device *d =
3088            const_cast<Camera3Device*>(static_cast<const Camera3Device*>(cb));
3089    d->processCaptureResult(result);
3090}
3091
3092void Camera3Device::sNotify(const camera3_callback_ops *cb,
3093        const camera3_notify_msg *msg) {
3094    Camera3Device *d =
3095            const_cast<Camera3Device*>(static_cast<const Camera3Device*>(cb));
3096    d->notify(msg);
3097}
3098
3099}; // namespace android
3100