OMXFocus.cpp revision 2136042f80a20aeeef3ece24bab027c401426334
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 OMX_CONFIG_BOOLEANTYPE bOMX; 86 87 LOG_FUNCTION_NAME; 88 89 if ( OMX_StateInvalid == mComponentState ) 90 { 91 CAMHAL_LOGEA("OMX component in Invalid state"); 92 returnFocusStatus(false); 93 return -EINVAL; 94 } 95 96 if ( OMX_StateExecuting != mComponentState ) 97 { 98 CAMHAL_LOGEA("OMX component not in executing state"); 99 returnFocusStatus(false); 100 return NO_ERROR; 101 } 102 103 if ( 0 != mDoAFSem.Count() ) 104 { 105 CAMHAL_LOGEB("Error mDoAFSem semaphore count %d", mDoAFSem.Count()); 106 return NO_INIT; 107 } 108 109 if( ((AF_ACTIVE & getState()) != AF_ACTIVE) && ((AF_ACTIVE & getNextState()) != AF_ACTIVE) ) { 110 CAMHAL_LOGDA("Auto focus got canceled before doAutoFocus could be called"); 111 return NO_ERROR; 112 } 113 114 // If the app calls autoFocus, the camera will stop sending face callbacks. 115 pauseFaceDetection(true); 116 117 // This is needed for applying FOCUS_REGION correctly 118 if ( (!mFocusAreas.isEmpty()) && (!mFocusAreas.itemAt(0)->isZeroArea())) 119 { 120 //Disable face priority 121 setAlgoPriority(FACE_PRIORITY, FOCUS_ALGO, false); 122 123 //Enable region algorithm priority 124 setAlgoPriority(REGION_PRIORITY, FOCUS_ALGO, true); 125 } 126 127 OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE); 128 focusControl.eFocusControl = ( OMX_IMAGE_FOCUSCONTROLTYPE ) mParameters3A.Focus; 129 130 if (mParameters3A.FocusLock) { 131 // this basically means user never called cancelAutoFocus after a scan... 132 // if this is the case we need to unlock AF to ensure we will do a scan 133 if (set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_FALSE) != NO_ERROR) { 134 CAMHAL_LOGEA("Error Unlocking 3A locks"); 135 } else { 136 CAMHAL_LOGDA("AE/AWB unlocked successfully"); 137 } 138 139 } else if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAuto ) { 140 // In case we have CAF running we should first check the AF status. 141 // If it has managed to lock, then do as usual and return status 142 // immediately. If lock is not available, then switch temporarily 143 // to 'autolock' and do normal AF. 144 ret = checkFocus(&focusStatus); 145 if ( NO_ERROR != ret ) { 146 CAMHAL_LOGEB("Focus status check failed 0x%x!", ret); 147 return ret; 148 } else { 149 CAMHAL_LOGDB("Focus status check 0x%x!", focusStatus.eFocusStatus); 150 } 151 } 152 153 if ( (focusControl.eFocusControl == OMX_IMAGE_FocusControlAuto 154 && focusStatus.eFocusStatus == OMX_FocusStatusRequest) || 155 (mParameters3A.Focus != (OMX_IMAGE_FOCUSCONTROLTYPE)OMX_IMAGE_FocusControlAuto) ) 156 { 157 OMX_INIT_STRUCT_PTR (&bOMX, OMX_CONFIG_BOOLEANTYPE); 158 bOMX.bEnabled = OMX_TRUE; 159 160 //Enable focus scanning 161 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 162 (OMX_INDEXTYPE)OMX_TI_IndexConfigAutofocusEnable, 163 &bOMX); 164 165 ret = RegisterForEvent(mCameraAdapterParameters.mHandleComp, 166 (OMX_EVENTTYPE) OMX_EventIndexSettingChanged, 167 OMX_ALL, 168 OMX_IndexConfigCommonFocusStatus, 169 mDoAFSem); 170 171 if ( focusControl.eFocusControl != OMX_IMAGE_FocusControlAuto ) 172 { 173 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 174 OMX_IndexConfigFocusControl, 175 &focusControl); 176 } 177 178 if ( OMX_ErrorNone != eError ) { 179 CAMHAL_LOGEB("Error while starting focus 0x%x", eError); 180 return INVALID_OPERATION; 181 } else { 182 CAMHAL_LOGDA("Autofocus started successfully"); 183 } 184 185 if(mDoAFSem.WaitTimeout(AF_CALLBACK_TIMEOUT) != NO_ERROR) { 186 //If somethiing bad happened while we wait 187 if (mComponentState == OMX_StateInvalid) { 188 CAMHAL_LOGEA("Invalid State after Auto Focus Exitting!!!"); 189 return EINVAL; 190 } 191 192 RemoveEvent(mCameraAdapterParameters.mHandleComp, 193 (OMX_EVENTTYPE) OMX_EventIndexSettingChanged, 194 OMX_ALL, 195 OMX_IndexConfigCommonFocusStatus, 196 NULL ); 197 returnFocusStatus(true); 198 } else { 199 200 ret = returnFocusStatus(false); 201 } 202 } else { // Focus mode in continuous 203 if ( NO_ERROR == ret ) { 204 ret = returnFocusStatus(false); 205 mPending3Asettings |= SetFocus; 206 } 207 } 208 209 LOG_FUNCTION_NAME_EXIT; 210 211 return ret; 212} 213 214status_t OMXCameraAdapter::stopAutoFocus() 215{ 216 status_t ret = NO_ERROR; 217 OMX_ERRORTYPE eError = OMX_ErrorNone; 218 OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusControl; 219 220 LOG_FUNCTION_NAME; 221 222 if ( OMX_StateInvalid == mComponentState ) 223 { 224 CAMHAL_LOGEA("OMX component in Invalid state"); 225 returnFocusStatus(false); 226 return -EINVAL; 227 } 228 229 if ( OMX_StateExecuting != mComponentState ) 230 { 231 CAMHAL_LOGEA("OMX component not in executing state"); 232 return NO_ERROR; 233 } 234 235 if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity ) { 236 // No need to stop focus if we are in infinity mode. Nothing to stop. 237 return NO_ERROR; 238 } 239 240 if ( NO_ERROR == ret ) 241 { 242 OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE); 243 focusControl.eFocusControl = OMX_IMAGE_FocusControlOff; 244 245 eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp, 246 OMX_IndexConfigFocusControl, 247 &focusControl); 248 if ( OMX_ErrorNone != eError ) 249 { 250 CAMHAL_LOGEB("Error while stopping focus 0x%x", eError); 251 return ErrorUtils::omxToAndroidError(eError); 252 } 253 } 254 255 LOG_FUNCTION_NAME_EXIT; 256 257 return ret; 258} 259 260status_t OMXCameraAdapter::getFocusMode(OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE &focusMode) 261{; 262 OMX_ERRORTYPE eError = OMX_ErrorNone; 263 264 LOG_FUNCTION_NAME; 265 266 if ( OMX_StateInvalid == mComponentState ) { 267 CAMHAL_LOGEA("OMX component is in invalid state"); 268 return NO_INIT; 269 } 270 271 OMX_INIT_STRUCT_PTR (&focusMode, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE); 272 focusMode.nPortIndex = mCameraAdapterParameters.mPrevPortIndex; 273 274 eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp, 275 OMX_IndexConfigFocusControl, 276 &focusMode); 277 278 if ( OMX_ErrorNone != eError ) { 279 CAMHAL_LOGEB("Error while retrieving focus mode 0x%x", eError); 280 } 281 282 LOG_FUNCTION_NAME_EXIT; 283 284 return ErrorUtils::omxToAndroidError(eError); 285} 286 287status_t OMXCameraAdapter::cancelAutoFocus() 288{ 289 status_t ret = NO_ERROR; 290 OMX_ERRORTYPE eError = OMX_ErrorNone; 291 OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusMode; 292 293 LOG_FUNCTION_NAME; 294 295 ret = getFocusMode(focusMode); 296 if ( NO_ERROR != ret ) { 297 return ret; 298 } 299 300 //Stop the AF only for modes other than CAF or Inifinity 301 if ( ( focusMode.eFocusControl != OMX_IMAGE_FocusControlAuto ) && 302 ( focusMode.eFocusControl != ( OMX_IMAGE_FOCUSCONTROLTYPE ) 303 OMX_IMAGE_FocusControlAutoInfinity ) ) { 304 stopAutoFocus(); 305 //Signal a dummy AF event so that in case the callback from ducati 306 //does come then it doesnt crash after 307 //exiting this function since eventSem will go out of scope. 308 ret |= SignalEvent(mCameraAdapterParameters.mHandleComp, 309 (OMX_EVENTTYPE) OMX_EventIndexSettingChanged, 310 OMX_ALL, 311 OMX_IndexConfigCommonFocusStatus, 312 NULL ); 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 bool focusStatus = false; 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 = false; 423 } 424 else 425 { 426 switch (eFocusStatus.eFocusStatus) 427 { 428 case OMX_FocusStatusReached: 429 { 430 focusStatus = true; 431 break; 432 } 433 case OMX_FocusStatusOff: 434 case OMX_FocusStatusUnableToReach: 435 case OMX_FocusStatusRequest: 436 default: 437 { 438 focusStatus = false; 439 break; 440 } 441 } 442 // Lock CAF after AF call 443 if( set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_TRUE) != NO_ERROR) { 444 CAMHAL_LOGEA("Error Applying 3A locks"); 445 } else { 446 CAMHAL_LOGDA("Focus locked. Applied focus locks successfully"); 447 } 448 449 stopAutoFocus(); 450 } 451 //Query current focus distance after AF is complete 452 updateFocusDistances(mParameters); 453 } 454 455 ret = BaseCameraAdapter::setState(CAMERA_CANCEL_AUTOFOCUS); 456 if ( NO_ERROR == ret ) 457 { 458 ret = BaseCameraAdapter::commitState(); 459 } 460 else 461 { 462 ret |= BaseCameraAdapter::rollbackState(); 463 } 464 465 if ( NO_ERROR == ret ) 466 { 467 notifyFocusSubscribers(focusStatus); 468 } 469 470 // After focus, face detection will resume sending face callbacks 471 pauseFaceDetection(false); 472 473 LOG_FUNCTION_NAME_EXIT; 474 475 return ret; 476} 477 478status_t OMXCameraAdapter::checkFocus(OMX_PARAM_FOCUSSTATUSTYPE *eFocusStatus) 479{ 480 status_t ret = NO_ERROR; 481 OMX_ERRORTYPE eError = OMX_ErrorNone; 482 483 LOG_FUNCTION_NAME; 484 485 if ( NULL == eFocusStatus ) 486 { 487 CAMHAL_LOGEA("Invalid focus status"); 488 ret = -EINVAL; 489 } 490 491 if ( OMX_StateInvalid == mComponentState ) 492 { 493 CAMHAL_LOGEA("OMX component in Invalid state"); 494 ret = -EINVAL; 495 } 496 497 if ( OMX_StateExecuting != mComponentState ) 498 { 499 CAMHAL_LOGEA("OMX component not in executing state"); 500 ret = NO_ERROR; 501 } 502 503 if ( NO_ERROR == ret ) 504 { 505 OMX_INIT_STRUCT_PTR (eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE); 506 507 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 ¶ms) 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} 785 786}; 787