OMXFocus.cpp revision 0e2a9f1fabc12a1a1123f8374d0e4d6faf5a2d62
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 Mutex::Autolock lock(mFocusAreasLock); 44 size_t MAX_FOCUS_AREAS; 45 46 47 LOG_FUNCTION_NAME; 48 49 str = params.get(CameraParameters::KEY_FOCUS_AREAS); 50 51 MAX_FOCUS_AREAS = atoi(params.get(CameraParameters::KEY_MAX_NUM_FOCUS_AREAS)); 52 53 mFocusAreas.clear(); 54 if ( NULL != str ) { 55 ret = CameraArea::parseAreas(str, ( strlen(str) + 1 ), mFocusAreas); 56 } 57 58 if ( NO_ERROR == ret ) { 59 if ( MAX_FOCUS_AREAS < mFocusAreas.size() ) { 60 CAMHAL_LOGEB("Focus areas supported %d, focus areas set %d", 61 MAX_FOCUS_AREAS, 62 mFocusAreas.size()); 63 ret = -EINVAL; 64 } 65 } 66 67 LOG_FUNCTION_NAME; 68 69 return ret; 70} 71 72status_t OMXCameraAdapter::doAutoFocus() 73{ 74 status_t ret = NO_ERROR; 75 OMX_ERRORTYPE eError = OMX_ErrorNone; 76 OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusControl; 77 OMX_PARAM_FOCUSSTATUSTYPE focusStatus; 78 79 LOG_FUNCTION_NAME; 80 81 if ( OMX_StateExecuting != mComponentState ) 82 { 83 CAMHAL_LOGEA("OMX component not in executing state"); 84 returnFocusStatus(false); 85 return NO_INIT; 86 } 87 88 if ( 0 != mDoAFSem.Count() ) 89 { 90 CAMHAL_LOGEB("Error mDoAFSem semaphore count %d", mDoAFSem.Count()); 91 return NO_INIT; 92 } 93 94 // If the app calls autoFocus, the camera will stop sending face callbacks. 95 pauseFaceDetection(true); 96 97 OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE); 98 focusControl.eFocusControl = ( OMX_IMAGE_FOCUSCONTROLTYPE ) mParameters3A.Focus; 99 100 if (mParameters3A.FocusLock) { 101 // this basically means user never called cancelAutoFocus after a scan... 102 // if this is the case we need to unlock AF to ensure we will do a scan 103 if (set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_FALSE) != NO_ERROR) { 104 CAMHAL_LOGEA("Error Unlocking 3A locks"); 105 } else { 106 CAMHAL_LOGDA("AE/AWB unlocked successfully"); 107 } 108 109 // if we are in CAF...then force normal AF 110 if (mParameters3A.Focus == OMX_IMAGE_FocusControlAuto) { 111 focusControl.eFocusControl = OMX_IMAGE_FocusControlAutoLock; 112 } 113 } else if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAuto ) { 114 // In case we have CAF running we should first check the AF status. 115 // If it has managed to lock, then do as usual and return status 116 // immediately. If lock is not available, then switch temporarily 117 // to 'autolock' and do normal AF. 118 ret = checkFocus(&focusStatus); 119 if ( NO_ERROR != ret ) { 120 CAMHAL_LOGEB("Focus status check failed 0x%x!", ret); 121 return ret; 122 } else { 123 CAMHAL_LOGDB("Focus status check 0x%x!", focusStatus.eFocusStatus); 124 } 125 126 if ( OMX_FocusStatusReached != focusStatus.eFocusStatus ) { 127 focusControl.eFocusControl = OMX_IMAGE_FocusControlAutoLock; 128 } 129 } 130 131 if ( ( focusControl.eFocusControl != OMX_IMAGE_FocusControlAuto ) && 132 ( focusControl.eFocusControl != ( OMX_IMAGE_FOCUSCONTROLTYPE ) 133 OMX_IMAGE_FocusControlAutoInfinity ) ) { 134 135 ret = RegisterForEvent(mCameraAdapterParameters.mHandleComp, 136 (OMX_EVENTTYPE) OMX_EventIndexSettingChanged, 137 OMX_ALL, 138 OMX_IndexConfigCommonFocusStatus, 139 mDoAFSem); 140 141 if ( NO_ERROR == ret ) { 142 ret = setFocusCallback(true); 143 } 144 145 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 146 OMX_IndexConfigFocusControl, 147 &focusControl); 148 149 if ( OMX_ErrorNone != eError ) { 150 CAMHAL_LOGEB("Error while starting focus 0x%x", eError); 151 return INVALID_OPERATION; 152 } else { 153 CAMHAL_LOGDA("Autofocus started successfully"); 154 } 155 156 if(mDoAFSem.WaitTimeout(AF_CALLBACK_TIMEOUT) != NO_ERROR) { 157 //If somethiing bad happened while we wait 158 if (mComponentState == OMX_StateInvalid) { 159 CAMHAL_LOGEA("Invalid State after Auto Focus Exitting!!!"); 160 return EINVAL; 161 } 162 163 //Disable auto focus callback from Ducati 164 setFocusCallback(false); 165 CAMHAL_LOGEA("Autofocus callback timeout expired"); 166 RemoveEvent(mCameraAdapterParameters.mHandleComp, 167 (OMX_EVENTTYPE) OMX_EventIndexSettingChanged, 168 OMX_ALL, 169 OMX_IndexConfigCommonFocusStatus, 170 NULL ); 171 returnFocusStatus(true); 172 } else { 173 CAMHAL_LOGDA("Autofocus callback received"); 174 //Disable auto focus callback from Ducati 175 setFocusCallback(false); 176 ret = returnFocusStatus(false); 177 } 178 } else { // Focus mode in continuous 179 if ( NO_ERROR == ret ) { 180 ret = returnFocusStatus(false); 181 } 182 } 183 184 //Restore CAF if needed 185 if ( ( mParameters3A.Focus == OMX_IMAGE_FocusControlAuto ) && 186 ( focusControl.eFocusControl == OMX_IMAGE_FocusControlAutoLock ) ) { 187 mPending3Asettings |= SetFocus; 188 } 189 190 LOG_FUNCTION_NAME_EXIT; 191 192 return ret; 193} 194 195status_t OMXCameraAdapter::stopAutoFocus() 196{ 197 status_t ret = NO_ERROR; 198 OMX_ERRORTYPE eError = OMX_ErrorNone; 199 OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusControl; 200 201 LOG_FUNCTION_NAME; 202 203 if ( OMX_StateExecuting != mComponentState ) 204 { 205 CAMHAL_LOGEA("OMX component not in executing state"); 206 return NO_INIT; 207 } 208 209 if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity ) { 210 // No need to stop focus if we are in infinity mode. Nothing to stop. 211 return NO_ERROR; 212 } 213 214 if ( NO_ERROR == ret ) 215 { 216 //Disable the callback first 217 ret = setFocusCallback(false); 218 } 219 220 if ( NO_ERROR == ret ) 221 { 222 OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE); 223 focusControl.eFocusControl = OMX_IMAGE_FocusControlOff; 224 225 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 226 OMX_IndexConfigFocusControl, 227 &focusControl); 228 if ( OMX_ErrorNone != eError ) 229 { 230 CAMHAL_LOGEB("Error while stopping focus 0x%x", eError); 231 return ErrorUtils::omxToAndroidError(eError); 232 } 233 } 234 235 //Query current focus distance after AF is complete 236 updateFocusDistances(mParameters); 237 238 LOG_FUNCTION_NAME_EXIT; 239 240 return ret; 241} 242 243status_t OMXCameraAdapter::getFocusMode(OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE &focusMode) 244{; 245 OMX_ERRORTYPE eError = OMX_ErrorNone; 246 247 LOG_FUNCTION_NAME; 248 249 if ( OMX_StateInvalid == mComponentState ) { 250 CAMHAL_LOGEA("OMX component is in invalid state"); 251 return NO_INIT; 252 } 253 254 OMX_INIT_STRUCT_PTR (&focusMode, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE); 255 focusMode.nPortIndex = mCameraAdapterParameters.mPrevPortIndex; 256 257 eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp, 258 OMX_IndexConfigFocusControl, 259 &focusMode); 260 261 if ( OMX_ErrorNone != eError ) { 262 CAMHAL_LOGEB("Error while retrieving focus mode 0x%x", eError); 263 } 264 265 LOG_FUNCTION_NAME_EXIT; 266 267 return ErrorUtils::omxToAndroidError(eError); 268} 269 270status_t OMXCameraAdapter::cancelAutoFocus() 271{ 272 status_t ret = NO_ERROR; 273 OMX_ERRORTYPE eError = OMX_ErrorNone; 274 OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusMode; 275 276 LOG_FUNCTION_NAME; 277 // Unlock 3A locks since they were locked by AF conditionally 278 if( set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_FALSE) != NO_ERROR) { 279 CAMHAL_LOGEA("Error Unlocking 3A locks"); 280 } 281 else{ 282 CAMHAL_LOGDA("AE/AWB unlocked successfully"); 283 } 284 285 ret = getFocusMode(focusMode); 286 if ( NO_ERROR != ret ) { 287 return ret; 288 } 289 290 //Stop the AF only for modes other than CAF or Inifinity 291 if ( ( focusMode.eFocusControl != OMX_IMAGE_FocusControlAuto ) && 292 ( focusMode.eFocusControl != ( OMX_IMAGE_FOCUSCONTROLTYPE ) 293 OMX_IMAGE_FocusControlAutoInfinity ) ) { 294 stopAutoFocus(); 295 //Signal a dummy AF event so that in case the callback from ducati 296 //does come then it doesnt crash after 297 //exiting this function since eventSem will go out of scope. 298 ret |= SignalEvent(mCameraAdapterParameters.mHandleComp, 299 (OMX_EVENTTYPE) OMX_EventIndexSettingChanged, 300 OMX_ALL, 301 OMX_IndexConfigCommonFocusStatus, 302 NULL ); 303 } 304 305 // If the apps call #cancelAutoFocus()}, the face callbacks will also resume. 306 pauseFaceDetection(false); 307 308 LOG_FUNCTION_NAME_EXIT; 309 310 return ret; 311 312} 313 314status_t OMXCameraAdapter::setFocusCallback(bool enabled) 315{ 316 status_t ret = NO_ERROR; 317 OMX_ERRORTYPE eError = OMX_ErrorNone; 318 OMX_CONFIG_CALLBACKREQUESTTYPE focusRequstCallback; 319 320 LOG_FUNCTION_NAME; 321 322 if ( OMX_StateExecuting != mComponentState ) 323 { 324 CAMHAL_LOGEA("OMX component not in executing state"); 325 ret = -1; 326 } 327 328 if ( NO_ERROR == ret ) 329 { 330 331 OMX_INIT_STRUCT_PTR (&focusRequstCallback, OMX_CONFIG_CALLBACKREQUESTTYPE); 332 focusRequstCallback.nPortIndex = OMX_ALL; 333 focusRequstCallback.nIndex = OMX_IndexConfigCommonFocusStatus; 334 335 if ( enabled ) 336 { 337 focusRequstCallback.bEnable = OMX_TRUE; 338 } 339 else 340 { 341 focusRequstCallback.bEnable = OMX_FALSE; 342 } 343 344 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 345 (OMX_INDEXTYPE) OMX_IndexConfigCallbackRequest, 346 &focusRequstCallback); 347 if ( OMX_ErrorNone != eError ) 348 { 349 CAMHAL_LOGEB("Error registering focus callback 0x%x", eError); 350 ret = -1; 351 } 352 else 353 { 354 CAMHAL_LOGDB("Autofocus callback for index 0x%x registered successfully", 355 OMX_IndexConfigCommonFocusStatus); 356 } 357 } 358 359 LOG_FUNCTION_NAME_EXIT; 360 361 return ret; 362} 363 364status_t OMXCameraAdapter::returnFocusStatus(bool timeoutReached) 365{ 366 status_t ret = NO_ERROR; 367 OMX_PARAM_FOCUSSTATUSTYPE eFocusStatus; 368 bool focusStatus = false; 369 BaseCameraAdapter::AdapterState state; 370 BaseCameraAdapter::getState(state); 371 372 LOG_FUNCTION_NAME; 373 374 OMX_INIT_STRUCT(eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE); 375 376 if( ( AF_ACTIVE & state ) != AF_ACTIVE ) 377 { 378 /// We don't send focus callback if focus was not started 379 return NO_ERROR; 380 } 381 382 if ( NO_ERROR == ret ) 383 { 384 385 if ( !timeoutReached ) 386 { 387 ret = checkFocus(&eFocusStatus); 388 389 if ( NO_ERROR != ret ) 390 { 391 CAMHAL_LOGEA("Focus status check failed!"); 392 } 393 } 394 } 395 396 if ( NO_ERROR == ret ) 397 { 398 399 if ( timeoutReached ) 400 { 401 focusStatus = false; 402 } 403 else 404 { 405 switch (eFocusStatus.eFocusStatus) 406 { 407 case OMX_FocusStatusReached: 408 { 409 focusStatus = true; 410 break; 411 } 412 case OMX_FocusStatusOff: 413 case OMX_FocusStatusUnableToReach: 414 case OMX_FocusStatusRequest: 415 default: 416 { 417 focusStatus = false; 418 break; 419 } 420 } 421 // Lock CAF after AF call 422 if( set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_TRUE) != NO_ERROR) { 423 CAMHAL_LOGEA("Error Applying 3A locks"); 424 } else { 425 CAMHAL_LOGDA("Focus locked. Applied focus locks successfully"); 426 } 427 428 stopAutoFocus(); 429 } 430 } 431 432 ret = BaseCameraAdapter::setState(CAMERA_CANCEL_AUTOFOCUS); 433 if ( NO_ERROR == ret ) 434 { 435 ret = BaseCameraAdapter::commitState(); 436 } 437 else 438 { 439 ret |= BaseCameraAdapter::rollbackState(); 440 } 441 442 if ( NO_ERROR == ret ) 443 { 444 notifyFocusSubscribers(focusStatus); 445 } 446 447 // After focus, face detection will resume sending face callbacks 448 pauseFaceDetection(false); 449 450 LOG_FUNCTION_NAME_EXIT; 451 452 return ret; 453} 454 455status_t OMXCameraAdapter::checkFocus(OMX_PARAM_FOCUSSTATUSTYPE *eFocusStatus) 456{ 457 status_t ret = NO_ERROR; 458 OMX_ERRORTYPE eError = OMX_ErrorNone; 459 460 LOG_FUNCTION_NAME; 461 462 if ( NULL == eFocusStatus ) 463 { 464 CAMHAL_LOGEA("Invalid focus status"); 465 ret = -EINVAL; 466 } 467 468 if ( OMX_StateExecuting != mComponentState ) 469 { 470 CAMHAL_LOGEA("OMX component not in executing state"); 471 ret = -EINVAL; 472 } 473 474 if ( NO_ERROR == ret ) 475 { 476 OMX_INIT_STRUCT_PTR (eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE); 477 478 eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp, 479 OMX_IndexConfigCommonFocusStatus, 480 eFocusStatus); 481 if ( OMX_ErrorNone != eError ) 482 { 483 CAMHAL_LOGEB("Error while retrieving focus status: 0x%x", eError); 484 ret = -1; 485 } 486 } 487 488 if ( NO_ERROR == ret ) 489 { 490 CAMHAL_LOGDB("Focus Status: %d", eFocusStatus->eFocusStatus); 491 } 492 493 LOG_FUNCTION_NAME_EXIT; 494 495 return ret; 496} 497 498status_t OMXCameraAdapter::updateFocusDistances(CameraParameters ¶ms) 499{ 500 OMX_U32 focusNear, focusOptimal, focusFar; 501 status_t ret = NO_ERROR; 502 503 LOG_FUNCTION_NAME; 504 505 ret = getFocusDistances(focusNear, focusOptimal, focusFar); 506 if ( NO_ERROR == ret) 507 { 508 ret = addFocusDistances(focusNear, focusOptimal, focusFar, params); 509 if ( NO_ERROR != ret ) 510 { 511 CAMHAL_LOGEB("Error in call to addFocusDistances() 0x%x", ret); 512 } 513 } 514 else 515 { 516 CAMHAL_LOGEB("Error in call to getFocusDistances() 0x%x", ret); 517 } 518 519 LOG_FUNCTION_NAME_EXIT; 520 521 return ret; 522} 523 524status_t OMXCameraAdapter::getFocusDistances(OMX_U32 &near,OMX_U32 &optimal, OMX_U32 &far) 525{ 526 status_t ret = NO_ERROR; 527 OMX_ERRORTYPE eError; 528 529 OMX_TI_CONFIG_FOCUSDISTANCETYPE focusDist; 530 531 LOG_FUNCTION_NAME; 532 533 if ( OMX_StateInvalid == mComponentState ) 534 { 535 CAMHAL_LOGEA("OMX component is in invalid state"); 536 ret = UNKNOWN_ERROR; 537 } 538 539 if ( NO_ERROR == ret ) 540 { 541 OMX_INIT_STRUCT_PTR(&focusDist, OMX_TI_CONFIG_FOCUSDISTANCETYPE); 542 focusDist.nPortIndex = mCameraAdapterParameters.mPrevPortIndex; 543 544 eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp, 545 ( OMX_INDEXTYPE ) OMX_TI_IndexConfigFocusDistance, 546 &focusDist); 547 if ( OMX_ErrorNone != eError ) 548 { 549 CAMHAL_LOGEB("Error while querying focus distances 0x%x", eError); 550 ret = UNKNOWN_ERROR; 551 } 552 553 } 554 555 if ( NO_ERROR == ret ) 556 { 557 near = focusDist.nFocusDistanceNear; 558 optimal = focusDist.nFocusDistanceOptimal; 559 far = focusDist.nFocusDistanceFar; 560 } 561 562 LOG_FUNCTION_NAME_EXIT; 563 564 return ret; 565} 566 567status_t OMXCameraAdapter::encodeFocusDistance(OMX_U32 dist, char *buffer, size_t length) 568{ 569 status_t ret = NO_ERROR; 570 uint32_t focusScale = 1000; 571 float distFinal; 572 573 LOG_FUNCTION_NAME; 574 575 if(mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity) 576 { 577 dist=0; 578 } 579 580 if ( NO_ERROR == ret ) 581 { 582 if ( 0 == dist ) 583 { 584 strncpy(buffer, CameraParameters::FOCUS_DISTANCE_INFINITY, ( length - 1 )); 585 } 586 else 587 { 588 distFinal = dist; 589 distFinal /= focusScale; 590 snprintf(buffer, ( length - 1 ) , "%5.3f", distFinal); 591 } 592 } 593 594 LOG_FUNCTION_NAME_EXIT; 595 596 return ret; 597} 598 599status_t OMXCameraAdapter::addFocusDistances(OMX_U32 &near, 600 OMX_U32 &optimal, 601 OMX_U32 &far, 602 CameraParameters& params) 603{ 604 status_t ret = NO_ERROR; 605 606 LOG_FUNCTION_NAME; 607 608 if ( NO_ERROR == ret ) 609 { 610 ret = encodeFocusDistance(near, mFocusDistNear, FOCUS_DIST_SIZE); 611 if ( NO_ERROR != ret ) 612 { 613 CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret); 614 } 615 } 616 617 if ( NO_ERROR == ret ) 618 { 619 ret = encodeFocusDistance(optimal, mFocusDistOptimal, FOCUS_DIST_SIZE); 620 if ( NO_ERROR != ret ) 621 { 622 CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret); 623 } 624 } 625 626 if ( NO_ERROR == ret ) 627 { 628 ret = encodeFocusDistance(far, mFocusDistFar, FOCUS_DIST_SIZE); 629 if ( NO_ERROR != ret ) 630 { 631 CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret); 632 } 633 } 634 635 if ( NO_ERROR == ret ) 636 { 637 snprintf(mFocusDistBuffer, ( FOCUS_DIST_BUFFER_SIZE - 1) ,"%s,%s,%s", mFocusDistNear, 638 mFocusDistOptimal, 639 mFocusDistFar); 640 641 params.set(CameraParameters::KEY_FOCUS_DISTANCES, mFocusDistBuffer); 642 } 643 644 LOG_FUNCTION_NAME_EXIT; 645 646 return ret; 647} 648 649status_t OMXCameraAdapter::setTouchFocus() 650{ 651 status_t ret = NO_ERROR; 652 OMX_ERRORTYPE eError = OMX_ErrorNone; 653 654 OMX_ALGOAREASTYPE **focusAreas; 655 OMX_TI_CONFIG_SHAREDBUFFER sharedBuffer; 656 MemoryManager memMgr; 657 int areasSize = 0; 658 659 LOG_FUNCTION_NAME; 660 661 if ( OMX_StateInvalid == mComponentState ) 662 { 663 CAMHAL_LOGEA("OMX component is in invalid state"); 664 ret = -1; 665 } 666 667 if ( NO_ERROR == ret ) 668 { 669 670 areasSize = ((sizeof(OMX_ALGOAREASTYPE)+4095)/4096)*4096; 671 focusAreas = (OMX_ALGOAREASTYPE**) memMgr.allocateBuffer(0, 0, NULL, areasSize, 1); 672 673 OMXCameraPortParameters * mPreviewData = NULL; 674 mPreviewData = &mCameraAdapterParameters.mCameraPortParams[mCameraAdapterParameters.mPrevPortIndex]; 675 676 if (!focusAreas) 677 { 678 CAMHAL_LOGEB("Error allocating buffer for focus areas %d", eError); 679 return -ENOMEM; 680 } 681 682 OMX_INIT_STRUCT_PTR (focusAreas[0], OMX_ALGOAREASTYPE); 683 684 focusAreas[0]->nPortIndex = OMX_ALL; 685 focusAreas[0]->nNumAreas = mFocusAreas.size(); 686 focusAreas[0]->nAlgoAreaPurpose = OMX_AlgoAreaFocus; 687 688 // If the area is the special case of (0, 0, 0, 0, 0), then 689 // the algorithm needs nNumAreas to be set to 0, 690 // in order to automatically choose the best fitting areas. 691 if ( mFocusAreas.itemAt(0)->isZeroArea() ) 692 { 693 focusAreas[0]->nNumAreas = 0; 694 } 695 696 for ( unsigned int n = 0; n < mFocusAreas.size(); n++) 697 { 698 // transform the coordinates to 3A-type coordinates 699 mFocusAreas.itemAt(n)->transfrom((size_t)mPreviewData->mWidth, 700 (size_t)mPreviewData->mHeight, 701 (size_t&)focusAreas[0]->tAlgoAreas[n].nTop, 702 (size_t&)focusAreas[0]->tAlgoAreas[n].nLeft, 703 (size_t&)focusAreas[0]->tAlgoAreas[n].nWidth, 704 (size_t&)focusAreas[0]->tAlgoAreas[n].nHeight); 705 706 focusAreas[0]->tAlgoAreas[n].nLeft = 707 ( focusAreas[0]->tAlgoAreas[n].nLeft * TOUCH_FOCUS_RANGE ) / mPreviewData->mWidth; 708 focusAreas[0]->tAlgoAreas[n].nTop = 709 ( focusAreas[0]->tAlgoAreas[n].nTop* TOUCH_FOCUS_RANGE ) / mPreviewData->mHeight; 710 focusAreas[0]->tAlgoAreas[n].nWidth = 711 ( focusAreas[0]->tAlgoAreas[n].nWidth * TOUCH_FOCUS_RANGE ) / mPreviewData->mWidth; 712 focusAreas[0]->tAlgoAreas[n].nHeight = 713 ( focusAreas[0]->tAlgoAreas[n].nHeight * TOUCH_FOCUS_RANGE ) / mPreviewData->mHeight; 714 focusAreas[0]->tAlgoAreas[n].nPriority = mFocusAreas.itemAt(n)->getWeight(); 715 716 CAMHAL_LOGDB("Focus area %d : top = %d left = %d width = %d height = %d prio = %d", 717 n, (int)focusAreas[0]->tAlgoAreas[n].nTop, (int)focusAreas[0]->tAlgoAreas[n].nLeft, 718 (int)focusAreas[0]->tAlgoAreas[n].nWidth, (int)focusAreas[0]->tAlgoAreas[n].nHeight, 719 (int)focusAreas[0]->tAlgoAreas[n].nPriority); 720 } 721 722 OMX_INIT_STRUCT_PTR (&sharedBuffer, OMX_TI_CONFIG_SHAREDBUFFER); 723 724 sharedBuffer.nPortIndex = OMX_ALL; 725 sharedBuffer.nSharedBuffSize = areasSize; 726 sharedBuffer.pSharedBuff = (OMX_U8 *) focusAreas[0]; 727 728 if ( NULL == sharedBuffer.pSharedBuff ) 729 { 730 CAMHAL_LOGEA("No resources to allocate OMX shared buffer"); 731 ret = -ENOMEM; 732 goto EXIT; 733 } 734 735 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 736 (OMX_INDEXTYPE) OMX_TI_IndexConfigAlgoAreas, &sharedBuffer); 737 738 if ( OMX_ErrorNone != eError ) 739 { 740 CAMHAL_LOGEB("Error while setting Focus Areas configuration 0x%x", eError); 741 ret = -EINVAL; 742 } 743 744 EXIT: 745 if (NULL != focusAreas) 746 { 747 memMgr.freeBuffer((void*) focusAreas); 748 focusAreas = NULL; 749 } 750 } 751 752 LOG_FUNCTION_NAME_EXIT; 753 754 return ret; 755} 756 757}; 758