OMXFocus.cpp revision fd705eb8b757a4f3d1d80b736cf20cade04524d7
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_CALLBACK_TIMEOUT 5000000 //5 seconds timeout 35 36namespace android { 37 38status_t OMXCameraAdapter::setParametersFocus(const CameraParameters ¶ms, 39 BaseCameraAdapter::AdapterState state) 40{ 41 status_t ret = NO_ERROR; 42 const char *str = NULL; 43 Vector< sp<CameraArea> > tempAreas; 44 size_t MAX_FOCUS_AREAS; 45 46 LOG_FUNCTION_NAME; 47 48 Mutex::Autolock lock(mFocusAreasLock); 49 50 str = params.get(CameraParameters::KEY_FOCUS_AREAS); 51 52 MAX_FOCUS_AREAS = atoi(params.get(CameraParameters::KEY_MAX_NUM_FOCUS_AREAS)); 53 54 if ( NULL != str ) { 55 ret = CameraArea::parseAreas(str, ( strlen(str) + 1 ), tempAreas); 56 } 57 58 if ( (NO_ERROR == ret) && CameraArea::areAreasDifferent(mFocusAreas, tempAreas) ) { 59 mFocusAreas.clear(); 60 mFocusAreas = tempAreas; 61 if ( MAX_FOCUS_AREAS < mFocusAreas.size() ) { 62 CAMHAL_LOGEB("Focus areas supported %d, focus areas set %d", 63 MAX_FOCUS_AREAS, 64 mFocusAreas.size()); 65 ret = -EINVAL; 66 } 67 else { 68 if ( !mFocusAreas.isEmpty() ) { 69 setTouchFocus(); 70 } 71 } 72 } 73 74 LOG_FUNCTION_NAME; 75 76 return ret; 77} 78 79status_t OMXCameraAdapter::doAutoFocus() 80{ 81 status_t ret = NO_ERROR; 82 OMX_ERRORTYPE eError = OMX_ErrorNone; 83 OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusControl; 84 OMX_PARAM_FOCUSSTATUSTYPE focusStatus; 85 86 LOG_FUNCTION_NAME; 87 88 if ( OMX_StateExecuting != mComponentState ) 89 { 90 CAMHAL_LOGEA("OMX component not in executing state"); 91 returnFocusStatus(false); 92 return NO_INIT; 93 } 94 95 if ( 0 != mDoAFSem.Count() ) 96 { 97 CAMHAL_LOGEB("Error mDoAFSem semaphore count %d", mDoAFSem.Count()); 98 return NO_INIT; 99 } 100 101 // If the app calls autoFocus, the camera will stop sending face callbacks. 102 pauseFaceDetection(true); 103 104 // This is needed for applying FOCUS_REGION correctly 105 if ( (!mFocusAreas.isEmpty()) && (!mFocusAreas.itemAt(0)->isZeroArea())) 106 { 107 //Disable face priority 108 setAlgoPriority(FACE_PRIORITY, FOCUS_ALGO, false); 109 110 //Enable region algorithm priority 111 setAlgoPriority(REGION_PRIORITY, FOCUS_ALGO, true); 112 } 113 114 OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE); 115 focusControl.eFocusControl = ( OMX_IMAGE_FOCUSCONTROLTYPE ) mParameters3A.Focus; 116 117 if (mParameters3A.FocusLock) { 118 // this basically means user never called cancelAutoFocus after a scan... 119 // if this is the case we need to unlock AF to ensure we will do a scan 120 if (set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_FALSE) != NO_ERROR) { 121 CAMHAL_LOGEA("Error Unlocking 3A locks"); 122 } else { 123 CAMHAL_LOGDA("AE/AWB unlocked successfully"); 124 } 125 126 } else if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAuto ) { 127 // In case we have CAF running we should first check the AF status. 128 // If it has managed to lock, then do as usual and return status 129 // immediately. If lock is not available, then switch temporarily 130 // to 'autolock' and do normal AF. 131 ret = checkFocus(&focusStatus); 132 if ( NO_ERROR != ret ) { 133 CAMHAL_LOGEB("Focus status check failed 0x%x!", ret); 134 return ret; 135 } else { 136 CAMHAL_LOGDB("Focus status check 0x%x!", focusStatus.eFocusStatus); 137 } 138 } 139 140 if ( ( focusControl.eFocusControl != OMX_IMAGE_FocusControlAuto ) && 141 ( focusControl.eFocusControl != ( OMX_IMAGE_FOCUSCONTROLTYPE ) 142 OMX_IMAGE_FocusControlAutoInfinity ) ) { 143 144 ret = RegisterForEvent(mCameraAdapterParameters.mHandleComp, 145 (OMX_EVENTTYPE) OMX_EventIndexSettingChanged, 146 OMX_ALL, 147 OMX_IndexConfigCommonFocusStatus, 148 mDoAFSem); 149 150 if ( NO_ERROR == ret ) { 151 ret = setFocusCallback(true); 152 } 153 154 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 155 OMX_IndexConfigFocusControl, 156 &focusControl); 157 158 if ( OMX_ErrorNone != eError ) { 159 CAMHAL_LOGEB("Error while starting focus 0x%x", eError); 160 return INVALID_OPERATION; 161 } else { 162 CAMHAL_LOGDA("Autofocus started successfully"); 163 } 164 165 if(mDoAFSem.WaitTimeout(AF_CALLBACK_TIMEOUT) != NO_ERROR) { 166 //If somethiing bad happened while we wait 167 if (mComponentState == OMX_StateInvalid) { 168 CAMHAL_LOGEA("Invalid State after Auto Focus Exitting!!!"); 169 return EINVAL; 170 } 171 172 //Disable auto focus callback from Ducati 173 setFocusCallback(false); 174 CAMHAL_LOGEA("Autofocus callback timeout expired"); 175 RemoveEvent(mCameraAdapterParameters.mHandleComp, 176 (OMX_EVENTTYPE) OMX_EventIndexSettingChanged, 177 OMX_ALL, 178 OMX_IndexConfigCommonFocusStatus, 179 NULL ); 180 returnFocusStatus(true); 181 } else { 182 CAMHAL_LOGDA("Autofocus callback received"); 183 //Disable auto focus callback from Ducati 184 setFocusCallback(false); 185 ret = returnFocusStatus(false); 186 } 187 } else { // Focus mode in continuous 188 if ( NO_ERROR == ret ) { 189 ret = returnFocusStatus(false); 190 mPending3Asettings |= SetFocus; 191 } 192 } 193 194 LOG_FUNCTION_NAME_EXIT; 195 196 return ret; 197} 198 199status_t OMXCameraAdapter::stopAutoFocus() 200{ 201 status_t ret = NO_ERROR; 202 OMX_ERRORTYPE eError = OMX_ErrorNone; 203 OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusControl; 204 205 LOG_FUNCTION_NAME; 206 207 if ( OMX_StateExecuting != mComponentState ) 208 { 209 CAMHAL_LOGEA("OMX component not in executing state"); 210 return NO_INIT; 211 } 212 213 if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity ) { 214 // No need to stop focus if we are in infinity mode. Nothing to stop. 215 return NO_ERROR; 216 } 217 218 if ( NO_ERROR == ret ) 219 { 220 //Disable the callback first 221 ret = setFocusCallback(false); 222 } 223 224 if ( NO_ERROR == ret ) 225 { 226 OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE); 227 focusControl.eFocusControl = OMX_IMAGE_FocusControlOff; 228 229 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 230 OMX_IndexConfigFocusControl, 231 &focusControl); 232 if ( OMX_ErrorNone != eError ) 233 { 234 CAMHAL_LOGEB("Error while stopping focus 0x%x", eError); 235 return ErrorUtils::omxToAndroidError(eError); 236 } 237 } 238 239 LOG_FUNCTION_NAME_EXIT; 240 241 return ret; 242} 243 244status_t OMXCameraAdapter::getFocusMode(OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE &focusMode) 245{; 246 OMX_ERRORTYPE eError = OMX_ErrorNone; 247 248 LOG_FUNCTION_NAME; 249 250 if ( OMX_StateInvalid == mComponentState ) { 251 CAMHAL_LOGEA("OMX component is in invalid state"); 252 return NO_INIT; 253 } 254 255 OMX_INIT_STRUCT_PTR (&focusMode, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE); 256 focusMode.nPortIndex = mCameraAdapterParameters.mPrevPortIndex; 257 258 eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp, 259 OMX_IndexConfigFocusControl, 260 &focusMode); 261 262 if ( OMX_ErrorNone != eError ) { 263 CAMHAL_LOGEB("Error while retrieving focus mode 0x%x", eError); 264 } 265 266 LOG_FUNCTION_NAME_EXIT; 267 268 return ErrorUtils::omxToAndroidError(eError); 269} 270 271status_t OMXCameraAdapter::cancelAutoFocus() 272{ 273 status_t ret = NO_ERROR; 274 OMX_ERRORTYPE eError = OMX_ErrorNone; 275 OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusMode; 276 277 LOG_FUNCTION_NAME; 278 279 ret = getFocusMode(focusMode); 280 if ( NO_ERROR != ret ) { 281 return ret; 282 } 283 284 //Stop the AF only for modes other than CAF or Inifinity 285 if ( ( focusMode.eFocusControl != OMX_IMAGE_FocusControlAuto ) && 286 ( focusMode.eFocusControl != ( OMX_IMAGE_FOCUSCONTROLTYPE ) 287 OMX_IMAGE_FocusControlAutoInfinity ) ) { 288 stopAutoFocus(); 289 //Signal a dummy AF event so that in case the callback from ducati 290 //does come then it doesnt crash after 291 //exiting this function since eventSem will go out of scope. 292 ret |= SignalEvent(mCameraAdapterParameters.mHandleComp, 293 (OMX_EVENTTYPE) OMX_EventIndexSettingChanged, 294 OMX_ALL, 295 OMX_IndexConfigCommonFocusStatus, 296 NULL ); 297 } else if (focusMode.eFocusControl == OMX_IMAGE_FocusControlAuto) { 298 // re-apply CAF after unlocking and canceling 299 mPending3Asettings |= SetFocus; 300 } 301 302 // If the apps call #cancelAutoFocus()}, the face callbacks will also resume. 303 pauseFaceDetection(false); 304 305 LOG_FUNCTION_NAME_EXIT; 306 307 return ret; 308 309} 310 311status_t OMXCameraAdapter::setFocusCallback(bool enabled) 312{ 313 status_t ret = NO_ERROR; 314 OMX_ERRORTYPE eError = OMX_ErrorNone; 315 OMX_CONFIG_CALLBACKREQUESTTYPE focusRequstCallback; 316 317 LOG_FUNCTION_NAME; 318 319 if ( OMX_StateExecuting != mComponentState ) 320 { 321 CAMHAL_LOGEA("OMX component not in executing state"); 322 ret = -1; 323 } 324 325 if ( NO_ERROR == ret ) 326 { 327 328 OMX_INIT_STRUCT_PTR (&focusRequstCallback, OMX_CONFIG_CALLBACKREQUESTTYPE); 329 focusRequstCallback.nPortIndex = OMX_ALL; 330 focusRequstCallback.nIndex = OMX_IndexConfigCommonFocusStatus; 331 332 if ( enabled ) 333 { 334 focusRequstCallback.bEnable = OMX_TRUE; 335 } 336 else 337 { 338 focusRequstCallback.bEnable = OMX_FALSE; 339 } 340 341 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 342 (OMX_INDEXTYPE) OMX_IndexConfigCallbackRequest, 343 &focusRequstCallback); 344 if ( OMX_ErrorNone != eError ) 345 { 346 CAMHAL_LOGEB("Error registering focus callback 0x%x", eError); 347 ret = -1; 348 } 349 else 350 { 351 CAMHAL_LOGDB("Autofocus callback for index 0x%x registered successfully", 352 OMX_IndexConfigCommonFocusStatus); 353 } 354 } 355 356 LOG_FUNCTION_NAME_EXIT; 357 358 return ret; 359} 360 361status_t OMXCameraAdapter::returnFocusStatus(bool timeoutReached) 362{ 363 status_t ret = NO_ERROR; 364 OMX_PARAM_FOCUSSTATUSTYPE eFocusStatus; 365 bool focusStatus = false; 366 BaseCameraAdapter::AdapterState state, nextState; 367 BaseCameraAdapter::getState(state); 368 BaseCameraAdapter::getNextState(nextState); 369 370 LOG_FUNCTION_NAME; 371 372 OMX_INIT_STRUCT(eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE); 373 374 if( ((AF_ACTIVE & state ) != AF_ACTIVE) && ((AF_ACTIVE & nextState ) != AF_ACTIVE) ) 375 { 376 /// We don't send focus callback if focus was not started 377 CAMHAL_LOGDA("Not sending focus callback because focus was not started"); 378 return NO_ERROR; 379 } 380 381 if ( NO_ERROR == ret ) 382 { 383 384 if ( !timeoutReached ) 385 { 386 ret = checkFocus(&eFocusStatus); 387 388 if ( NO_ERROR != ret ) 389 { 390 CAMHAL_LOGEA("Focus status check failed!"); 391 } 392 } 393 } 394 395 if ( NO_ERROR == ret ) 396 { 397 398 if ( timeoutReached ) 399 { 400 focusStatus = false; 401 } 402 else 403 { 404 switch (eFocusStatus.eFocusStatus) 405 { 406 case OMX_FocusStatusReached: 407 { 408 focusStatus = true; 409 break; 410 } 411 case OMX_FocusStatusOff: 412 case OMX_FocusStatusUnableToReach: 413 case OMX_FocusStatusRequest: 414 default: 415 { 416 focusStatus = false; 417 break; 418 } 419 } 420 // Lock CAF after AF call 421 if( set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_TRUE) != NO_ERROR) { 422 CAMHAL_LOGEA("Error Applying 3A locks"); 423 } else { 424 CAMHAL_LOGDA("Focus locked. Applied focus locks successfully"); 425 } 426 427 stopAutoFocus(); 428 } 429 //Query current focus distance after AF is complete 430 updateFocusDistances(mParameters); 431 } 432 433 ret = BaseCameraAdapter::setState(CAMERA_CANCEL_AUTOFOCUS); 434 if ( NO_ERROR == ret ) 435 { 436 ret = BaseCameraAdapter::commitState(); 437 } 438 else 439 { 440 ret |= BaseCameraAdapter::rollbackState(); 441 } 442 443 if ( NO_ERROR == ret ) 444 { 445 notifyFocusSubscribers(focusStatus); 446 } 447 448 // After focus, face detection will resume sending face callbacks 449 pauseFaceDetection(false); 450 451 LOG_FUNCTION_NAME_EXIT; 452 453 return ret; 454} 455 456status_t OMXCameraAdapter::checkFocus(OMX_PARAM_FOCUSSTATUSTYPE *eFocusStatus) 457{ 458 status_t ret = NO_ERROR; 459 OMX_ERRORTYPE eError = OMX_ErrorNone; 460 461 LOG_FUNCTION_NAME; 462 463 if ( NULL == eFocusStatus ) 464 { 465 CAMHAL_LOGEA("Invalid focus status"); 466 ret = -EINVAL; 467 } 468 469 if ( OMX_StateExecuting != mComponentState ) 470 { 471 CAMHAL_LOGEA("OMX component not in executing state"); 472 ret = -EINVAL; 473 } 474 475 if ( NO_ERROR == ret ) 476 { 477 OMX_INIT_STRUCT_PTR (eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE); 478 479 eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp, 480 OMX_IndexConfigCommonFocusStatus, 481 eFocusStatus); 482 if ( OMX_ErrorNone != eError ) 483 { 484 CAMHAL_LOGEB("Error while retrieving focus status: 0x%x", eError); 485 ret = -1; 486 } 487 } 488 489 if ( NO_ERROR == ret ) 490 { 491 CAMHAL_LOGDB("Focus Status: %d", eFocusStatus->eFocusStatus); 492 } 493 494 LOG_FUNCTION_NAME_EXIT; 495 496 return ret; 497} 498 499status_t OMXCameraAdapter::updateFocusDistances(CameraParameters ¶ms) 500{ 501 OMX_U32 focusNear, focusOptimal, focusFar; 502 status_t ret = NO_ERROR; 503 504 LOG_FUNCTION_NAME; 505 506 ret = getFocusDistances(focusNear, focusOptimal, focusFar); 507 if ( NO_ERROR == ret) 508 { 509 ret = addFocusDistances(focusNear, focusOptimal, focusFar, params); 510 if ( NO_ERROR != ret ) 511 { 512 CAMHAL_LOGEB("Error in call to addFocusDistances() 0x%x", ret); 513 } 514 } 515 else 516 { 517 CAMHAL_LOGEB("Error in call to getFocusDistances() 0x%x", ret); 518 } 519 520 LOG_FUNCTION_NAME_EXIT; 521 522 return ret; 523} 524 525status_t OMXCameraAdapter::getFocusDistances(OMX_U32 &near,OMX_U32 &optimal, OMX_U32 &far) 526{ 527 status_t ret = NO_ERROR; 528 OMX_ERRORTYPE eError; 529 530 OMX_TI_CONFIG_FOCUSDISTANCETYPE focusDist; 531 532 LOG_FUNCTION_NAME; 533 534 if ( OMX_StateInvalid == mComponentState ) 535 { 536 CAMHAL_LOGEA("OMX component is in invalid state"); 537 ret = UNKNOWN_ERROR; 538 } 539 540 if ( NO_ERROR == ret ) 541 { 542 OMX_INIT_STRUCT_PTR(&focusDist, OMX_TI_CONFIG_FOCUSDISTANCETYPE); 543 focusDist.nPortIndex = mCameraAdapterParameters.mPrevPortIndex; 544 545 eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp, 546 ( OMX_INDEXTYPE ) OMX_TI_IndexConfigFocusDistance, 547 &focusDist); 548 if ( OMX_ErrorNone != eError ) 549 { 550 CAMHAL_LOGEB("Error while querying focus distances 0x%x", eError); 551 ret = UNKNOWN_ERROR; 552 } 553 554 } 555 556 if ( NO_ERROR == ret ) 557 { 558 near = focusDist.nFocusDistanceNear; 559 optimal = focusDist.nFocusDistanceOptimal; 560 far = focusDist.nFocusDistanceFar; 561 } 562 563 LOG_FUNCTION_NAME_EXIT; 564 565 return ret; 566} 567 568status_t OMXCameraAdapter::encodeFocusDistance(OMX_U32 dist, char *buffer, size_t length) 569{ 570 status_t ret = NO_ERROR; 571 uint32_t focusScale = 1000; 572 float distFinal; 573 574 LOG_FUNCTION_NAME; 575 576 if(mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity) 577 { 578 dist=0; 579 } 580 581 if ( NO_ERROR == ret ) 582 { 583 if ( 0 == dist ) 584 { 585 strncpy(buffer, CameraParameters::FOCUS_DISTANCE_INFINITY, ( length - 1 )); 586 } 587 else 588 { 589 distFinal = dist; 590 distFinal /= focusScale; 591 snprintf(buffer, ( length - 1 ) , "%5.3f", distFinal); 592 } 593 } 594 595 LOG_FUNCTION_NAME_EXIT; 596 597 return ret; 598} 599 600status_t OMXCameraAdapter::addFocusDistances(OMX_U32 &near, 601 OMX_U32 &optimal, 602 OMX_U32 &far, 603 CameraParameters& params) 604{ 605 status_t ret = NO_ERROR; 606 607 LOG_FUNCTION_NAME; 608 609 if ( NO_ERROR == ret ) 610 { 611 ret = encodeFocusDistance(near, mFocusDistNear, FOCUS_DIST_SIZE); 612 if ( NO_ERROR != ret ) 613 { 614 CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret); 615 } 616 } 617 618 if ( NO_ERROR == ret ) 619 { 620 ret = encodeFocusDistance(optimal, mFocusDistOptimal, FOCUS_DIST_SIZE); 621 if ( NO_ERROR != ret ) 622 { 623 CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret); 624 } 625 } 626 627 if ( NO_ERROR == ret ) 628 { 629 ret = encodeFocusDistance(far, mFocusDistFar, FOCUS_DIST_SIZE); 630 if ( NO_ERROR != ret ) 631 { 632 CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret); 633 } 634 } 635 636 if ( NO_ERROR == ret ) 637 { 638 snprintf(mFocusDistBuffer, ( FOCUS_DIST_BUFFER_SIZE - 1) ,"%s,%s,%s", mFocusDistNear, 639 mFocusDistOptimal, 640 mFocusDistFar); 641 642 params.set(CameraParameters::KEY_FOCUS_DISTANCES, mFocusDistBuffer); 643 } 644 645 LOG_FUNCTION_NAME_EXIT; 646 647 return ret; 648} 649 650status_t OMXCameraAdapter::setTouchFocus() 651{ 652 status_t ret = NO_ERROR; 653 OMX_ERRORTYPE eError = OMX_ErrorNone; 654 655 OMX_ALGOAREASTYPE **focusAreas; 656 OMX_TI_CONFIG_SHAREDBUFFER sharedBuffer; 657 MemoryManager memMgr; 658 int areasSize = 0; 659 660 LOG_FUNCTION_NAME; 661 662 if ( OMX_StateInvalid == mComponentState ) 663 { 664 CAMHAL_LOGEA("OMX component is in invalid state"); 665 ret = -1; 666 } 667 668 if ( NO_ERROR == ret ) 669 { 670 671 areasSize = ((sizeof(OMX_ALGOAREASTYPE)+4095)/4096)*4096; 672 focusAreas = (OMX_ALGOAREASTYPE**) memMgr.allocateBuffer(0, 0, NULL, areasSize, 1); 673 674 OMXCameraPortParameters * mPreviewData = NULL; 675 mPreviewData = &mCameraAdapterParameters.mCameraPortParams[mCameraAdapterParameters.mPrevPortIndex]; 676 677 if (!focusAreas) 678 { 679 CAMHAL_LOGEB("Error allocating buffer for focus areas %d", eError); 680 return -ENOMEM; 681 } 682 683 OMX_INIT_STRUCT_PTR (focusAreas[0], OMX_ALGOAREASTYPE); 684 685 focusAreas[0]->nPortIndex = OMX_ALL; 686 focusAreas[0]->nNumAreas = mFocusAreas.size(); 687 focusAreas[0]->nAlgoAreaPurpose = OMX_AlgoAreaFocus; 688 689 // If the area is the special case of (0, 0, 0, 0, 0), then 690 // the algorithm needs nNumAreas to be set to 0, 691 // in order to automatically choose the best fitting areas. 692 if ( mFocusAreas.itemAt(0)->isZeroArea() ) 693 { 694 focusAreas[0]->nNumAreas = 0; 695 } 696 697 for ( unsigned int n = 0; n < mFocusAreas.size(); n++) 698 { 699 // transform the coordinates to 3A-type coordinates 700 mFocusAreas.itemAt(n)->transfrom((size_t)mPreviewData->mWidth, 701 (size_t)mPreviewData->mHeight, 702 (size_t&)focusAreas[0]->tAlgoAreas[n].nTop, 703 (size_t&)focusAreas[0]->tAlgoAreas[n].nLeft, 704 (size_t&)focusAreas[0]->tAlgoAreas[n].nWidth, 705 (size_t&)focusAreas[0]->tAlgoAreas[n].nHeight); 706 707 focusAreas[0]->tAlgoAreas[n].nLeft = 708 ( focusAreas[0]->tAlgoAreas[n].nLeft * TOUCH_FOCUS_RANGE ) / mPreviewData->mWidth; 709 focusAreas[0]->tAlgoAreas[n].nTop = 710 ( focusAreas[0]->tAlgoAreas[n].nTop* TOUCH_FOCUS_RANGE ) / mPreviewData->mHeight; 711 focusAreas[0]->tAlgoAreas[n].nWidth = 712 ( focusAreas[0]->tAlgoAreas[n].nWidth * TOUCH_FOCUS_RANGE ) / mPreviewData->mWidth; 713 focusAreas[0]->tAlgoAreas[n].nHeight = 714 ( focusAreas[0]->tAlgoAreas[n].nHeight * TOUCH_FOCUS_RANGE ) / mPreviewData->mHeight; 715 focusAreas[0]->tAlgoAreas[n].nPriority = mFocusAreas.itemAt(n)->getWeight(); 716 717 CAMHAL_LOGDB("Focus area %d : top = %d left = %d width = %d height = %d prio = %d", 718 n, (int)focusAreas[0]->tAlgoAreas[n].nTop, (int)focusAreas[0]->tAlgoAreas[n].nLeft, 719 (int)focusAreas[0]->tAlgoAreas[n].nWidth, (int)focusAreas[0]->tAlgoAreas[n].nHeight, 720 (int)focusAreas[0]->tAlgoAreas[n].nPriority); 721 } 722 723 OMX_INIT_STRUCT_PTR (&sharedBuffer, OMX_TI_CONFIG_SHAREDBUFFER); 724 725 sharedBuffer.nPortIndex = OMX_ALL; 726 sharedBuffer.nSharedBuffSize = areasSize; 727 sharedBuffer.pSharedBuff = (OMX_U8 *) focusAreas[0]; 728 729 if ( NULL == sharedBuffer.pSharedBuff ) 730 { 731 CAMHAL_LOGEA("No resources to allocate OMX shared buffer"); 732 ret = -ENOMEM; 733 goto EXIT; 734 } 735 736 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 737 (OMX_INDEXTYPE) OMX_TI_IndexConfigAlgoAreas, &sharedBuffer); 738 739 if ( OMX_ErrorNone != eError ) 740 { 741 CAMHAL_LOGEB("Error while setting Focus Areas configuration 0x%x", eError); 742 ret = -EINVAL; 743 } 744 745 EXIT: 746 if (NULL != focusAreas) 747 { 748 memMgr.freeBuffer((void*) focusAreas); 749 focusAreas = NULL; 750 } 751 } 752 753 LOG_FUNCTION_NAME_EXIT; 754 755 return ret; 756} 757 758}; 759