OMXFocus.cpp revision 484116750df56d0805d5f5727ad94701f916e8c6 
1/*
2 * Copyright (C) Texas Instruments - http://www.ti.com/
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
18/**
19* @file OMXFocus.cpp
20*
21* This file contains functionality for handling focus configurations.
22*
23*/
24
25#undef LOG_TAG
26
27#define LOG_TAG "CameraHAL"
28
29#include "CameraHal.h"
30#include "OMXCameraAdapter.h"
31#include "ErrorUtils.h"
32
33#define TOUCH_FOCUS_RANGE 0xFF
34#define AF_IMAGE_CALLBACK_TIMEOUT 5000000 //5 seconds timeout
35#define AF_VIDEO_CALLBACK_TIMEOUT 2800000 //2.8 seconds timeout
36
37namespace android {
38
39status_t OMXCameraAdapter::setParametersFocus(const CameraParameters &params,
40                                              BaseCameraAdapter::AdapterState state)
41{
42    status_t ret = NO_ERROR;
43    const char *str = NULL;
44    Vector< sp<CameraArea> > tempAreas;
45    size_t MAX_FOCUS_AREAS;
46
47    LOG_FUNCTION_NAME;
48
49    Mutex::Autolock lock(mFocusAreasLock);
50
51    str = params.get(CameraParameters::KEY_FOCUS_AREAS);
52
53    MAX_FOCUS_AREAS = atoi(params.get(CameraParameters::KEY_MAX_NUM_FOCUS_AREAS));
54
55    if ( NULL != str ) {
56        ret = CameraArea::parseAreas(str, ( strlen(str) + 1 ), tempAreas);
57    }
58
59    if ( (NO_ERROR == ret) && CameraArea::areAreasDifferent(mFocusAreas, tempAreas) ) {
60        mFocusAreas.clear();
61        mFocusAreas = tempAreas;
62        if ( MAX_FOCUS_AREAS < mFocusAreas.size() ) {
63            CAMHAL_LOGEB("Focus areas supported %d, focus areas set %d",
64                         MAX_FOCUS_AREAS,
65                         mFocusAreas.size());
66            ret = -EINVAL;
67        }
68        else {
69            if ( !mFocusAreas.isEmpty() ) {
70                setTouchFocus();
71            }
72        }
73    }
74
75    LOG_FUNCTION_NAME;
76
77    return ret;
78}
79
80status_t OMXCameraAdapter::doAutoFocus()
81{
82    status_t ret = NO_ERROR;
83    OMX_ERRORTYPE eError = OMX_ErrorNone;
84    OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusControl;
85    OMX_PARAM_FOCUSSTATUSTYPE focusStatus;
86    OMX_CONFIG_BOOLEANTYPE bOMX;
87    nsecs_t timeout = 0;
88
89    LOG_FUNCTION_NAME;
90
91    if ( OMX_StateInvalid == mComponentState )
92      {
93        CAMHAL_LOGEA("OMX component in Invalid state");
94        returnFocusStatus(false);
95        return -EINVAL;
96      }
97
98    if ( OMX_StateExecuting != mComponentState )
99        {
100        CAMHAL_LOGEA("OMX component not in executing state");
101        returnFocusStatus(false);
102        return NO_ERROR;
103        }
104
105
106    if( ((AF_ACTIVE & getState()) != AF_ACTIVE) && ((AF_ACTIVE & getNextState()) != AF_ACTIVE) ) {
107       CAMHAL_LOGDA("Auto focus got canceled before doAutoFocus could be called");
108       return NO_ERROR;
109    }
110
111    // If the app calls autoFocus, the camera will stop sending face callbacks.
112    pauseFaceDetection(true);
113
114    // This is needed for applying FOCUS_REGION correctly
115    if ( (!mFocusAreas.isEmpty()) && (!mFocusAreas.itemAt(0)->isZeroArea()))
116    {
117    //Disable face priority
118    setAlgoPriority(FACE_PRIORITY, FOCUS_ALGO, false);
119
120    //Enable region algorithm priority
121    setAlgoPriority(REGION_PRIORITY, FOCUS_ALGO, true);
122    }
123
124    OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE);
125    focusControl.eFocusControl = ( OMX_IMAGE_FOCUSCONTROLTYPE ) mParameters3A.Focus;
126
127    if (mParameters3A.FocusLock) {
128        // this basically means user never called cancelAutoFocus after a scan...
129        // if this is the case we need to unlock AF to ensure we will do a scan
130        if (set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_FALSE) != NO_ERROR) {
131            CAMHAL_LOGEA("Error Unlocking 3A locks");
132        } else {
133            CAMHAL_LOGDA("AE/AWB unlocked successfully");
134        }
135
136    } else if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAuto ) {
137        // In case we have CAF running we should first check the AF status.
138        // If it has managed to lock, then do as usual and return status
139        // immediately.
140        ret = checkFocus(&focusStatus);
141        if ( NO_ERROR != ret ) {
142            CAMHAL_LOGEB("Focus status check failed 0x%x!", ret);
143            return ret;
144        } else {
145            CAMHAL_LOGDB("Focus status check 0x%x!", focusStatus.eFocusStatus);
146        }
147    }
148
149    if ( (focusControl.eFocusControl == OMX_IMAGE_FocusControlAuto
150            && (focusStatus.eFocusStatus == OMX_FocusStatusRequest
151             || focusStatus.eFocusStatus == OMX_FocusStatusUnableToReach) ) ||
152            (mParameters3A.Focus !=  (OMX_IMAGE_FOCUSCONTROLTYPE)OMX_IMAGE_FocusControlAuto) )
153        {
154        OMX_INIT_STRUCT_PTR (&bOMX, OMX_CONFIG_BOOLEANTYPE);
155        bOMX.bEnabled = OMX_TRUE;
156
157        //Enable focus scanning
158        eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
159                               (OMX_INDEXTYPE)OMX_TI_IndexConfigAutofocusEnable,
160                               &bOMX);
161
162        // force AF, Ducati will take care of whether CAF
163        // or AF will be performed, depending on light conditions
164        if ( focusControl.eFocusControl == OMX_IMAGE_FocusControlAuto
165		&& focusStatus.eFocusStatus == OMX_FocusStatusUnableToReach )
166			{
167			focusControl.eFocusControl = OMX_IMAGE_FocusControlAutoLock;
168			}
169
170        if ( focusControl.eFocusControl != OMX_IMAGE_FocusControlAuto )
171            {
172            eError =  OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
173                                    OMX_IndexConfigFocusControl,
174                                    &focusControl);
175            }
176
177        if ( OMX_ErrorNone != eError ) {
178            CAMHAL_LOGEB("Error while starting focus 0x%x", eError);
179            return INVALID_OPERATION;
180        } else {
181            CAMHAL_LOGDA("Autofocus started successfully");
182        }
183
184        // configure focus timeout based on capture mode
185        timeout = (mCapMode == VIDEO_MODE) ?
186                        ( ( nsecs_t ) AF_VIDEO_CALLBACK_TIMEOUT * 1000 ) :
187                        ( ( nsecs_t ) AF_IMAGE_CALLBACK_TIMEOUT * 1000 );
188
189            {
190            Mutex::Autolock lock(mDoAFMutex);
191            ret = mDoAFCond.waitRelative(mDoAFMutex, timeout);
192            }
193
194        //If somethiing bad happened while we wait
195        if (mComponentState == OMX_StateInvalid) {
196          CAMHAL_LOGEA("Invalid State after Auto Focus Exitting!!!");
197          return -EINVAL;
198        }
199
200        if(ret != NO_ERROR) {
201            CAMHAL_LOGEA("Autofocus callback timeout expired");
202            ret = returnFocusStatus(true);
203        } else {
204            ret = returnFocusStatus(false);
205        }
206    } else { // Focus mode in continuous
207        if ( NO_ERROR == ret ) {
208            ret = returnFocusStatus(true);
209            mPending3Asettings |= SetFocus;
210        }
211    }
212
213    LOG_FUNCTION_NAME_EXIT;
214
215    return ret;
216}
217
218status_t OMXCameraAdapter::stopAutoFocus()
219{
220    OMX_ERRORTYPE eError = OMX_ErrorNone;
221    OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusControl;
222
223    LOG_FUNCTION_NAME;
224
225    if ( OMX_StateInvalid == mComponentState )
226      {
227        CAMHAL_LOGEA("OMX component in Invalid state");
228        returnFocusStatus(false);
229        return -EINVAL;
230      }
231
232    if ( OMX_StateExecuting != mComponentState )
233        {
234          CAMHAL_LOGEA("OMX component not in executing state");
235        return NO_ERROR;
236        }
237
238    if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity ) {
239        // No need to stop focus if we are in infinity mode. Nothing to stop.
240        return NO_ERROR;
241    }
242
243    OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE);
244    focusControl.eFocusControl = OMX_IMAGE_FocusControlOff;
245
246    eError =  OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
247                            OMX_IndexConfigFocusControl,
248                            &focusControl);
249    if ( OMX_ErrorNone != eError )
250        {
251        CAMHAL_LOGEB("Error while stopping focus 0x%x", eError);
252        return ErrorUtils::omxToAndroidError(eError);
253    } else {
254        // This is a WA. Usually the OMX Camera component should
255        // generate AF status change OMX event fairly quickly
256        // ( after one preview frame ) and this notification should
257        // actually come from 'handleFocusCallback()'.
258        Mutex::Autolock lock(mDoAFMutex);
259        mDoAFCond.broadcast();
260    }
261
262
263    LOG_FUNCTION_NAME_EXIT;
264
265    return NO_ERROR;
266}
267
268status_t OMXCameraAdapter::getFocusMode(OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE &focusMode)
269{;
270    OMX_ERRORTYPE eError = OMX_ErrorNone;
271
272    LOG_FUNCTION_NAME;
273
274    if ( OMX_StateInvalid == mComponentState ) {
275        CAMHAL_LOGEA("OMX component is in invalid state");
276        return NO_INIT;
277    }
278
279    OMX_INIT_STRUCT_PTR (&focusMode, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE);
280    focusMode.nPortIndex = mCameraAdapterParameters.mPrevPortIndex;
281
282    eError =  OMX_GetConfig(mCameraAdapterParameters.mHandleComp,
283                            OMX_IndexConfigFocusControl,
284                            &focusMode);
285
286    if ( OMX_ErrorNone != eError ) {
287        CAMHAL_LOGEB("Error while retrieving focus mode 0x%x", eError);
288    }
289
290    LOG_FUNCTION_NAME_EXIT;
291
292    return ErrorUtils::omxToAndroidError(eError);
293}
294
295status_t OMXCameraAdapter::cancelAutoFocus()
296{
297    status_t ret = NO_ERROR;
298    OMX_ERRORTYPE eError = OMX_ErrorNone;
299    OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusMode;
300
301    LOG_FUNCTION_NAME;
302
303    ret = getFocusMode(focusMode);
304    if ( NO_ERROR != ret ) {
305        return ret;
306    }
307
308    //Stop the AF only for modes other than CAF  or Inifinity
309    if ( ( focusMode.eFocusControl != OMX_IMAGE_FocusControlAuto ) &&
310         ( focusMode.eFocusControl != ( OMX_IMAGE_FOCUSCONTROLTYPE )
311                 OMX_IMAGE_FocusControlAutoInfinity ) ) {
312        stopAutoFocus();
313    } else if (focusMode.eFocusControl == OMX_IMAGE_FocusControlAuto) {
314       // re-apply CAF after unlocking and canceling
315       mPending3Asettings |= SetFocus;
316    }
317
318    // If the apps call #cancelAutoFocus()}, the face callbacks will also resume.
319    pauseFaceDetection(false);
320
321    LOG_FUNCTION_NAME_EXIT;
322
323    return ret;
324
325}
326
327status_t OMXCameraAdapter::setFocusCallback(bool enabled)
328{
329    status_t ret = NO_ERROR;
330    OMX_ERRORTYPE eError = OMX_ErrorNone;
331    OMX_CONFIG_CALLBACKREQUESTTYPE focusRequstCallback;
332
333    LOG_FUNCTION_NAME;
334
335    if ( OMX_StateInvalid == mComponentState )
336      {
337        CAMHAL_LOGEA("OMX component in Invalid state");
338        ret = -EINVAL;
339      }
340
341    if ( OMX_StateExecuting != mComponentState )
342        {
343          CAMHAL_LOGEA("OMX component not in executing state");
344        ret = NO_ERROR;
345        }
346
347    if ( NO_ERROR == ret )
348        {
349
350        OMX_INIT_STRUCT_PTR (&focusRequstCallback, OMX_CONFIG_CALLBACKREQUESTTYPE);
351        focusRequstCallback.nPortIndex = OMX_ALL;
352        focusRequstCallback.nIndex = OMX_IndexConfigCommonFocusStatus;
353
354        if ( enabled )
355            {
356            focusRequstCallback.bEnable = OMX_TRUE;
357            }
358        else
359            {
360            focusRequstCallback.bEnable = OMX_FALSE;
361            }
362
363        eError =  OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
364                                (OMX_INDEXTYPE) OMX_IndexConfigCallbackRequest,
365                                &focusRequstCallback);
366        if ( OMX_ErrorNone != eError )
367            {
368            CAMHAL_LOGEB("Error registering focus callback 0x%x", eError);
369            ret = -1;
370            }
371        else
372            {
373            CAMHAL_LOGDB("Autofocus callback for index 0x%x registered successfully",
374                         OMX_IndexConfigCommonFocusStatus);
375            }
376        }
377
378    LOG_FUNCTION_NAME_EXIT;
379
380    return ret;
381}
382
383status_t OMXCameraAdapter::returnFocusStatus(bool timeoutReached)
384{
385    status_t ret = NO_ERROR;
386    OMX_PARAM_FOCUSSTATUSTYPE eFocusStatus;
387    CameraHalEvent::FocusStatus focusStatus = CameraHalEvent::FOCUS_STATUS_FAIL;
388    BaseCameraAdapter::AdapterState state, nextState;
389    BaseCameraAdapter::getState(state);
390    BaseCameraAdapter::getNextState(nextState);
391
392    LOG_FUNCTION_NAME;
393
394    OMX_INIT_STRUCT(eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE);
395
396    if( ((AF_ACTIVE & state ) != AF_ACTIVE) && ((AF_ACTIVE & nextState ) != AF_ACTIVE) )
397       {
398        /// We don't send focus callback if focus was not started
399       CAMHAL_LOGDA("Not sending focus callback because focus was not started");
400       return NO_ERROR;
401       }
402
403    if ( NO_ERROR == ret )
404        {
405
406        if ( !timeoutReached )
407            {
408            ret = checkFocus(&eFocusStatus);
409
410            if ( NO_ERROR != ret )
411                {
412                CAMHAL_LOGEA("Focus status check failed!");
413                }
414            }
415        }
416
417    if ( NO_ERROR == ret )
418        {
419
420        if ( timeoutReached )
421            {
422            focusStatus = CameraHalEvent::FOCUS_STATUS_FAIL;
423            }
424        else
425            {
426            switch (eFocusStatus.eFocusStatus)
427                {
428                    case OMX_FocusStatusReached:
429                        {
430                        focusStatus = CameraHalEvent::FOCUS_STATUS_SUCCESS;
431                        break;
432                        }
433                    case OMX_FocusStatusOff: // AF got canceled
434                        return NO_ERROR;
435                    case OMX_FocusStatusUnableToReach:
436                    case OMX_FocusStatusRequest:
437                    default:
438                        {
439                        focusStatus = CameraHalEvent::FOCUS_STATUS_FAIL;
440                        break;
441                        }
442                }
443            // Lock CAF after AF call
444            if( set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_TRUE) != NO_ERROR) {
445                CAMHAL_LOGEA("Error Applying 3A locks");
446            } else {
447                CAMHAL_LOGDA("Focus locked. Applied focus locks successfully");
448            }
449            stopAutoFocus();
450            }
451
452        //Query current focus distance after AF is complete
453        updateFocusDistances(mParameters);
454       }
455
456    ret =  BaseCameraAdapter::setState(CAMERA_CANCEL_AUTOFOCUS);
457    if ( NO_ERROR == ret )
458        {
459        ret = BaseCameraAdapter::commitState();
460        }
461    else
462        {
463        ret |= BaseCameraAdapter::rollbackState();
464        }
465
466    if ( NO_ERROR == ret )
467        {
468        notifyFocusSubscribers(focusStatus);
469        }
470
471    // After focus, face detection will resume sending face callbacks
472    pauseFaceDetection(false);
473
474    LOG_FUNCTION_NAME_EXIT;
475
476    return ret;
477}
478
479status_t OMXCameraAdapter::checkFocus(OMX_PARAM_FOCUSSTATUSTYPE *eFocusStatus)
480{
481    status_t ret = NO_ERROR;
482    OMX_ERRORTYPE eError = OMX_ErrorNone;
483
484    LOG_FUNCTION_NAME;
485
486    if ( NULL == eFocusStatus )
487        {
488        CAMHAL_LOGEA("Invalid focus status");
489        ret = -EINVAL;
490        }
491
492    if ( OMX_StateInvalid == mComponentState )
493      {
494        CAMHAL_LOGEA("OMX component in Invalid state");
495        ret = -EINVAL;
496      }
497
498    if ( OMX_StateExecuting != mComponentState )
499        {
500        CAMHAL_LOGEA("OMX component not in executing state");
501        ret = NO_ERROR;
502        }
503
504    if ( NO_ERROR == ret )
505        {
506        OMX_INIT_STRUCT_PTR (eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE);
507        eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp,
508                               OMX_IndexConfigCommonFocusStatus,
509                               eFocusStatus);
510        if ( OMX_ErrorNone != eError )
511            {
512            CAMHAL_LOGEB("Error while retrieving focus status: 0x%x", eError);
513            ret = -1;
514            }
515        }
516
517    if ( NO_ERROR == ret )
518        {
519        CAMHAL_LOGDB("Focus Status: %d", eFocusStatus->eFocusStatus);
520        }
521
522    LOG_FUNCTION_NAME_EXIT;
523
524    return ret;
525}
526
527status_t OMXCameraAdapter::updateFocusDistances(CameraParameters &params)
528{
529    OMX_U32 focusNear, focusOptimal, focusFar;
530    status_t ret = NO_ERROR;
531
532    LOG_FUNCTION_NAME;
533
534    ret = getFocusDistances(focusNear, focusOptimal, focusFar);
535    if ( NO_ERROR == ret)
536        {
537        ret = addFocusDistances(focusNear, focusOptimal, focusFar, params);
538            if ( NO_ERROR != ret )
539                {
540                CAMHAL_LOGEB("Error in call to addFocusDistances() 0x%x", ret);
541                }
542        }
543    else
544        {
545        CAMHAL_LOGEB("Error in call to getFocusDistances() 0x%x", ret);
546        }
547
548    LOG_FUNCTION_NAME_EXIT;
549
550    return ret;
551}
552
553status_t OMXCameraAdapter::getFocusDistances(OMX_U32 &near,OMX_U32 &optimal, OMX_U32 &far)
554{
555    status_t ret = NO_ERROR;
556    OMX_ERRORTYPE eError;
557
558    OMX_TI_CONFIG_FOCUSDISTANCETYPE focusDist;
559
560    LOG_FUNCTION_NAME;
561
562    if ( OMX_StateInvalid == mComponentState )
563        {
564        CAMHAL_LOGEA("OMX component is in invalid state");
565        ret = UNKNOWN_ERROR;
566        }
567
568    if ( NO_ERROR == ret )
569        {
570        OMX_INIT_STRUCT_PTR(&focusDist, OMX_TI_CONFIG_FOCUSDISTANCETYPE);
571        focusDist.nPortIndex = mCameraAdapterParameters.mPrevPortIndex;
572
573        eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp,
574                               ( OMX_INDEXTYPE ) OMX_TI_IndexConfigFocusDistance,
575                               &focusDist);
576        if ( OMX_ErrorNone != eError )
577            {
578            CAMHAL_LOGEB("Error while querying focus distances 0x%x", eError);
579            ret = UNKNOWN_ERROR;
580            }
581
582        }
583
584    if ( NO_ERROR == ret )
585        {
586        near = focusDist.nFocusDistanceNear;
587        optimal = focusDist.nFocusDistanceOptimal;
588        far = focusDist.nFocusDistanceFar;
589        }
590
591    LOG_FUNCTION_NAME_EXIT;
592
593    return ret;
594}
595
596status_t OMXCameraAdapter::encodeFocusDistance(OMX_U32 dist, char *buffer, size_t length)
597{
598    status_t ret = NO_ERROR;
599    uint32_t focusScale = 1000;
600    float distFinal;
601
602    LOG_FUNCTION_NAME;
603
604    if(mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity)
605        {
606        dist=0;
607        }
608
609    if ( NO_ERROR == ret )
610        {
611        if ( 0 == dist )
612            {
613            strncpy(buffer, CameraParameters::FOCUS_DISTANCE_INFINITY, ( length - 1 ));
614            }
615        else
616            {
617            distFinal = dist;
618            distFinal /= focusScale;
619            snprintf(buffer, ( length - 1 ) , "%5.3f", distFinal);
620            }
621        }
622
623    LOG_FUNCTION_NAME_EXIT;
624
625    return ret;
626}
627
628status_t OMXCameraAdapter::addFocusDistances(OMX_U32 &near,
629                                             OMX_U32 &optimal,
630                                             OMX_U32 &far,
631                                             CameraParameters& params)
632{
633    status_t ret = NO_ERROR;
634
635    LOG_FUNCTION_NAME;
636
637    if ( NO_ERROR == ret )
638        {
639        ret = encodeFocusDistance(near, mFocusDistNear, FOCUS_DIST_SIZE);
640        if ( NO_ERROR != ret )
641            {
642            CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret);
643            }
644        }
645
646    if ( NO_ERROR == ret )
647        {
648        ret = encodeFocusDistance(optimal, mFocusDistOptimal, FOCUS_DIST_SIZE);
649        if ( NO_ERROR != ret )
650            {
651            CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret);
652            }
653        }
654
655    if ( NO_ERROR == ret )
656        {
657        ret = encodeFocusDistance(far, mFocusDistFar, FOCUS_DIST_SIZE);
658        if ( NO_ERROR != ret )
659            {
660            CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret);
661            }
662        }
663
664    if ( NO_ERROR == ret )
665        {
666        snprintf(mFocusDistBuffer, ( FOCUS_DIST_BUFFER_SIZE - 1) ,"%s,%s,%s", mFocusDistNear,
667                                                                              mFocusDistOptimal,
668                                                                              mFocusDistFar);
669
670        params.set(CameraParameters::KEY_FOCUS_DISTANCES, mFocusDistBuffer);
671        }
672
673    LOG_FUNCTION_NAME_EXIT;
674
675    return ret;
676}
677
678status_t OMXCameraAdapter::setTouchFocus()
679{
680    status_t ret = NO_ERROR;
681    OMX_ERRORTYPE eError = OMX_ErrorNone;
682
683    OMX_ALGOAREASTYPE **focusAreas;
684    OMX_TI_CONFIG_SHAREDBUFFER sharedBuffer;
685    MemoryManager memMgr;
686    int areasSize = 0;
687
688    LOG_FUNCTION_NAME;
689
690    if ( OMX_StateInvalid == mComponentState )
691        {
692        CAMHAL_LOGEA("OMX component is in invalid state");
693        ret = -1;
694        }
695
696    if ( NO_ERROR == ret )
697        {
698
699        areasSize = ((sizeof(OMX_ALGOAREASTYPE)+4095)/4096)*4096;
700        focusAreas = (OMX_ALGOAREASTYPE**) memMgr.allocateBuffer(0, 0, NULL, areasSize, 1);
701
702        OMXCameraPortParameters * mPreviewData = NULL;
703        mPreviewData = &mCameraAdapterParameters.mCameraPortParams[mCameraAdapterParameters.mPrevPortIndex];
704
705        if (!focusAreas)
706            {
707            CAMHAL_LOGEB("Error allocating buffer for focus areas %d", eError);
708            return -ENOMEM;
709            }
710
711        OMX_INIT_STRUCT_PTR (focusAreas[0], OMX_ALGOAREASTYPE);
712
713        focusAreas[0]->nPortIndex = OMX_ALL;
714        focusAreas[0]->nNumAreas = mFocusAreas.size();
715        focusAreas[0]->nAlgoAreaPurpose = OMX_AlgoAreaFocus;
716
717        // If the area is the special case of (0, 0, 0, 0, 0), then
718        // the algorithm needs nNumAreas to be set to 0,
719        // in order to automatically choose the best fitting areas.
720        if ( mFocusAreas.itemAt(0)->isZeroArea() )
721            {
722            focusAreas[0]->nNumAreas = 0;
723            }
724
725        for ( unsigned int n = 0; n < mFocusAreas.size(); n++)
726            {
727            // transform the coordinates to 3A-type coordinates
728            mFocusAreas.itemAt(n)->transfrom((size_t)mPreviewData->mWidth,
729                                            (size_t)mPreviewData->mHeight,
730                                            (size_t&)focusAreas[0]->tAlgoAreas[n].nTop,
731                                            (size_t&)focusAreas[0]->tAlgoAreas[n].nLeft,
732                                            (size_t&)focusAreas[0]->tAlgoAreas[n].nWidth,
733                                            (size_t&)focusAreas[0]->tAlgoAreas[n].nHeight);
734
735            focusAreas[0]->tAlgoAreas[n].nLeft =
736                    ( focusAreas[0]->tAlgoAreas[n].nLeft * TOUCH_FOCUS_RANGE ) / mPreviewData->mWidth;
737            focusAreas[0]->tAlgoAreas[n].nTop =
738                    ( focusAreas[0]->tAlgoAreas[n].nTop* TOUCH_FOCUS_RANGE ) / mPreviewData->mHeight;
739            focusAreas[0]->tAlgoAreas[n].nWidth =
740                    ( focusAreas[0]->tAlgoAreas[n].nWidth * TOUCH_FOCUS_RANGE ) / mPreviewData->mWidth;
741            focusAreas[0]->tAlgoAreas[n].nHeight =
742                    ( focusAreas[0]->tAlgoAreas[n].nHeight * TOUCH_FOCUS_RANGE ) / mPreviewData->mHeight;
743            focusAreas[0]->tAlgoAreas[n].nPriority = mFocusAreas.itemAt(n)->getWeight();
744
745             CAMHAL_LOGDB("Focus area %d : top = %d left = %d width = %d height = %d prio = %d",
746                    n, (int)focusAreas[0]->tAlgoAreas[n].nTop, (int)focusAreas[0]->tAlgoAreas[n].nLeft,
747                    (int)focusAreas[0]->tAlgoAreas[n].nWidth, (int)focusAreas[0]->tAlgoAreas[n].nHeight,
748                    (int)focusAreas[0]->tAlgoAreas[n].nPriority);
749             }
750
751        OMX_INIT_STRUCT_PTR (&sharedBuffer, OMX_TI_CONFIG_SHAREDBUFFER);
752
753        sharedBuffer.nPortIndex = OMX_ALL;
754        sharedBuffer.nSharedBuffSize = areasSize;
755        sharedBuffer.pSharedBuff = (OMX_U8 *) focusAreas[0];
756
757        if ( NULL == sharedBuffer.pSharedBuff )
758            {
759            CAMHAL_LOGEA("No resources to allocate OMX shared buffer");
760            ret = -ENOMEM;
761            goto EXIT;
762            }
763
764            eError =  OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
765                                      (OMX_INDEXTYPE) OMX_TI_IndexConfigAlgoAreas, &sharedBuffer);
766
767        if ( OMX_ErrorNone != eError )
768            {
769            CAMHAL_LOGEB("Error while setting Focus Areas configuration 0x%x", eError);
770            ret = -EINVAL;
771            }
772
773    EXIT:
774        if (NULL != focusAreas)
775            {
776            memMgr.freeBuffer((void*) focusAreas);
777            focusAreas = NULL;
778            }
779        }
780
781    LOG_FUNCTION_NAME_EXIT;
782
783    return ret;
784}
785
786void OMXCameraAdapter::handleFocusCallback() {
787    OMX_PARAM_FOCUSSTATUSTYPE eFocusStatus;
788    CameraHalEvent::FocusStatus focusStatus = CameraHalEvent::FOCUS_STATUS_FAIL;
789    status_t ret = NO_ERROR;
790    BaseCameraAdapter::AdapterState nextState;
791    BaseCameraAdapter::getNextState(nextState);
792
793    OMX_INIT_STRUCT(eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE);
794
795    ret = checkFocus(&eFocusStatus);
796
797    if (NO_ERROR != ret) {
798        CAMHAL_LOGEA("Focus status check failed!");
799        // signal and unblock doAutoFocus
800        if (AF_ACTIVE & nextState) {
801            Mutex::Autolock lock(mDoAFMutex);
802            mDoAFCond.broadcast();
803        }
804        return;
805    }
806
807    if ( ( eFocusStatus.eFocusStatus != OMX_FocusStatusRequest ) &&
808         ( eFocusStatus.eFocusStatus != OMX_FocusStatusOff ) ) {
809        // signal doAutoFocus when a end of scan message comes
810        // ignore start of scan
811        Mutex::Autolock lock(mDoAFMutex);
812        mDoAFCond.broadcast();
813    }
814
815    if (mParameters3A.Focus != (OMX_IMAGE_FOCUSCONTROLTYPE) OMX_IMAGE_FocusControlAuto) {
816       CAMHAL_LOGDA("unregistered focus callback when not in CAF or doAutoFocus... not handling");
817       return;
818    }
819
820    // Handling for CAF Callbacks
821    switch (eFocusStatus.eFocusStatus) {
822        case OMX_FocusStatusRequest:
823            focusStatus = CameraHalEvent::FOCUS_STATUS_PENDING;
824            break;
825        case OMX_FocusStatusReached:
826        case OMX_FocusStatusOff:
827        case OMX_FocusStatusUnableToReach:
828        default:
829            focusStatus = CameraHalEvent::FOCUS_STATUS_DONE;
830            break;
831    }
832
833    notifyFocusSubscribers(focusStatus);
834}
835
836};
837