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      1 /*
      2  * Copyright (C) 2015 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_NDEBUG 0
     18 #define LOG_TAG "NdkCameraCaptureSession"
     19 #define ATRACE_TAG ATRACE_TAG_CAMERA
     20 
     21 #include <utils/Log.h>
     22 #include <utils/Mutex.h>
     23 #include <utils/StrongPointer.h>
     24 #include <utils/Trace.h>
     25 
     26 #include <camera/NdkCameraDevice.h>
     27 #include <camera/NdkCaptureRequest.h>
     28 #include <camera/NdkCameraCaptureSession.h>
     29 #include "impl/ACameraCaptureSession.h"
     30 
     31 using namespace android;
     32 
     33 EXPORT
     34 void ACameraCaptureSession_close(ACameraCaptureSession* session) {
     35     ATRACE_CALL();
     36     if (session != nullptr) {
     37         session->closeByApp();
     38     }
     39     return;
     40 }
     41 
     42 EXPORT
     43 camera_status_t ACameraCaptureSession_getDevice(
     44         ACameraCaptureSession* session, ACameraDevice **device) {
     45     ATRACE_CALL();
     46     if (session == nullptr || device == nullptr) {
     47         ALOGE("%s: Error: invalid input: session %p, device %p",
     48                 __FUNCTION__, session, device);
     49         return ACAMERA_ERROR_INVALID_PARAMETER;
     50     }
     51 
     52     if (session->isClosed()) {
     53         ALOGE("%s: session %p is already closed", __FUNCTION__, session);
     54         *device = nullptr;
     55         return ACAMERA_ERROR_SESSION_CLOSED;
     56     }
     57 
     58     *device = session->getDevice();
     59     if (*device == nullptr) {
     60         // Should not reach here
     61         ALOGE("%s: unknown failure: device is null", __FUNCTION__);
     62         return ACAMERA_ERROR_UNKNOWN;
     63     }
     64     return ACAMERA_OK;
     65 }
     66 
     67 EXPORT
     68 camera_status_t ACameraCaptureSession_capture(
     69         ACameraCaptureSession* session, /*optional*/ACameraCaptureSession_captureCallbacks* cbs,
     70         int numRequests, ACaptureRequest** requests,
     71         /*optional*/int* captureSequenceId) {
     72     ATRACE_CALL();
     73     if (session == nullptr || requests == nullptr || numRequests < 1) {
     74         ALOGE("%s: Error: invalid input: session %p, numRequest %d, requests %p",
     75                 __FUNCTION__, session, numRequests, requests);
     76         return ACAMERA_ERROR_INVALID_PARAMETER;
     77     }
     78 
     79     if (session->isClosed()) {
     80         ALOGE("%s: session %p is already closed", __FUNCTION__, session);
     81         *captureSequenceId = CAPTURE_SEQUENCE_ID_NONE;
     82         return ACAMERA_ERROR_SESSION_CLOSED;
     83     }
     84 
     85     return session->capture(cbs, numRequests, requests, captureSequenceId);
     86 }
     87 
     88 EXPORT
     89 camera_status_t ACameraCaptureSession_setRepeatingRequest(
     90         ACameraCaptureSession* session, /*optional*/ACameraCaptureSession_captureCallbacks* cbs,
     91         int numRequests, ACaptureRequest** requests,
     92         /*optional*/int* captureSequenceId) {
     93     ATRACE_CALL();
     94     if (session == nullptr || requests == nullptr || numRequests < 1) {
     95         ALOGE("%s: Error: invalid input: session %p, numRequest %d, requests %p",
     96                 __FUNCTION__, session, numRequests, requests);
     97         return ACAMERA_ERROR_INVALID_PARAMETER;
     98     }
     99 
    100     if (session->isClosed()) {
    101         ALOGE("%s: session %p is already closed", __FUNCTION__, session);
    102         *captureSequenceId = CAPTURE_SEQUENCE_ID_NONE;
    103         return ACAMERA_ERROR_SESSION_CLOSED;
    104     }
    105 
    106     return session->setRepeatingRequest(cbs, numRequests, requests, captureSequenceId);
    107 }
    108 
    109 EXPORT
    110 camera_status_t ACameraCaptureSession_stopRepeating(ACameraCaptureSession* session) {
    111     ATRACE_CALL();
    112     if (session == nullptr) {
    113         ALOGE("%s: Error: session is null", __FUNCTION__);
    114         return ACAMERA_ERROR_INVALID_PARAMETER;
    115     }
    116 
    117     if (session->isClosed()) {
    118         ALOGE("%s: session %p is already closed", __FUNCTION__, session);
    119         return ACAMERA_ERROR_SESSION_CLOSED;
    120     }
    121     return session->stopRepeating();
    122 }
    123 
    124 EXPORT
    125 camera_status_t ACameraCaptureSession_abortCaptures(ACameraCaptureSession* session) {
    126     ATRACE_CALL();
    127     if (session == nullptr) {
    128         ALOGE("%s: Error: session is null", __FUNCTION__);
    129         return ACAMERA_ERROR_INVALID_PARAMETER;
    130     }
    131 
    132     if (session->isClosed()) {
    133         ALOGE("%s: session %p is already closed", __FUNCTION__, session);
    134         return ACAMERA_ERROR_SESSION_CLOSED;
    135     }
    136     return session->abortCaptures();
    137 }
    138 
    139 EXPORT
    140 camera_status_t ACameraCaptureSession_updateSharedOutput(ACameraCaptureSession* session,
    141         ACaptureSessionOutput* output) {
    142     ATRACE_CALL();
    143     if (session == nullptr) {
    144         ALOGE("%s: Error: session is null", __FUNCTION__);
    145         return ACAMERA_ERROR_INVALID_PARAMETER;
    146     }
    147 
    148     if (session->isClosed()) {
    149         ALOGE("%s: session %p is already closed", __FUNCTION__, session);
    150         return ACAMERA_ERROR_SESSION_CLOSED;
    151     }
    152     return session->updateOutputConfiguration(output);
    153 }
    154