/*
* Copyright (C) Texas Instruments - http://www.ti.com/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file OMXFocus.cpp
*
* This file contains functionality for handling focus configurations.
*
*/
#include "CameraHal.h"
#include "OMXCameraAdapter.h"
#include "ErrorUtils.h"
#define TOUCH_FOCUS_RANGE 0xFF
#define AF_IMAGE_CALLBACK_TIMEOUT 5000000 //5 seconds timeout
#define AF_VIDEO_CALLBACK_TIMEOUT 2800000 //2.8 seconds timeout
namespace Ti {
namespace Camera {
const nsecs_t OMXCameraAdapter::CANCEL_AF_TIMEOUT = seconds_to_nanoseconds(1);
status_t OMXCameraAdapter::setParametersFocus(const android::CameraParameters ¶ms,
BaseCameraAdapter::AdapterState state)
{
status_t ret = NO_ERROR;
const char *str = NULL;
android::Vector<android::sp<CameraArea> > tempAreas;
size_t MAX_FOCUS_AREAS;
LOG_FUNCTION_NAME;
android::AutoMutex lock(mFocusAreasLock);
str = params.get(android::CameraParameters::KEY_FOCUS_AREAS);
MAX_FOCUS_AREAS = atoi(params.get(android::CameraParameters::KEY_MAX_NUM_FOCUS_AREAS));
if ( NULL != str ) {
ret = CameraArea::parseAreas(str, ( strlen(str) + 1 ), tempAreas);
}
if ( (NO_ERROR == ret) && CameraArea::areAreasDifferent(mFocusAreas, tempAreas) ) {
mFocusAreas.clear();
mFocusAreas = tempAreas;
if ( MAX_FOCUS_AREAS < mFocusAreas.size() ) {
CAMHAL_LOGEB("Focus areas supported %d, focus areas set %d",
MAX_FOCUS_AREAS,
mFocusAreas.size());
ret = -EINVAL;
}
else {
if ( !mFocusAreas.isEmpty() ) {
setTouchFocus();
}
}
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::doAutoFocus()
{
status_t ret = NO_ERROR;
OMX_ERRORTYPE eError = OMX_ErrorNone;
OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusControl;
OMX_PARAM_FOCUSSTATUSTYPE focusStatus;
OMX_CONFIG_BOOLEANTYPE bOMX;
CameraAdapter::AdapterState state;
nsecs_t timeout = 0;
LOG_FUNCTION_NAME;
if ( OMX_StateInvalid == mComponentState )
{
CAMHAL_LOGEA("OMX component in Invalid state");
returnFocusStatus(false);
return -EINVAL;
}
if ( OMX_StateExecuting != mComponentState )
{
CAMHAL_LOGEA("OMX component not in executing state");
returnFocusStatus(false);
return NO_ERROR;
}
if( ((AF_ACTIVE & getState()) != AF_ACTIVE) && ((AF_ACTIVE & getNextState()) != AF_ACTIVE) ) {
CAMHAL_LOGDA("Auto focus got canceled before doAutoFocus could be called");
return NO_ERROR;
}
// AF when fixed focus modes are set should be a no-op.
if ( ( mParameters3A.Focus == OMX_IMAGE_FocusControlOff ) ||
( mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity ) ||
( mParameters3A.Focus == OMX_IMAGE_FocusControlHyperfocal ) ) {
returnFocusStatus(true);
return NO_ERROR;
}
OMX_INIT_STRUCT_PTR (&focusStatus, OMX_PARAM_FOCUSSTATUSTYPE);
// If the app calls autoFocus, the camera will stop sending face callbacks.
pauseFaceDetection(true);
// This is needed for applying FOCUS_REGION correctly
if ( (!mFocusAreas.isEmpty()) && (!mFocusAreas.itemAt(0)->isZeroArea()))
{
//Disable face priority
setAlgoPriority(FACE_PRIORITY, FOCUS_ALGO, false);
//Enable region algorithm priority
setAlgoPriority(REGION_PRIORITY, FOCUS_ALGO, true);
}
OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE);
focusControl.eFocusControl = ( OMX_IMAGE_FOCUSCONTROLTYPE ) mParameters3A.Focus;
if (mParameters3A.FocusLock) {
// this basically means user never called cancelAutoFocus after a scan...
// if this is the case we need to unlock AF to ensure we will do a scan
if (set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_FALSE) != NO_ERROR) {
CAMHAL_LOGEA("Error Unlocking 3A locks");
} else {
CAMHAL_LOGDA("AE/AWB unlocked successfully");
}
} else if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAuto ) {
// In case we have CAF running we should first check the AF status.
// If it has managed to lock, then do as usual and return status
// immediately.
ret = checkFocus(&focusStatus);
if ( NO_ERROR != ret ) {
CAMHAL_LOGEB("Focus status check failed 0x%x!", ret);
return ret;
} else {
CAMHAL_LOGDB("Focus status check 0x%x!", focusStatus.eFocusStatus);
}
}
if ( (focusControl.eFocusControl == OMX_IMAGE_FocusControlAuto &&
( focusStatus.eFocusStatus == OMX_FocusStatusRequest ||
focusStatus.eFocusStatus == OMX_FocusStatusUnableToReach ||
focusStatus.eFocusStatus == OMX_FocusStatusLost ) ) ||
(mParameters3A.Focus != (OMX_IMAGE_FOCUSCONTROLTYPE)OMX_IMAGE_FocusControlAuto) ) {
OMX_INIT_STRUCT_PTR (&bOMX, OMX_CONFIG_BOOLEANTYPE);
bOMX.bEnabled = OMX_TRUE;
//Enable focus scanning
eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
(OMX_INDEXTYPE)OMX_TI_IndexConfigAutofocusEnable,
&bOMX);
if ( OMX_ErrorNone != eError ) {
return Utils::ErrorUtils::omxToAndroidError(eError);
}
{
android::AutoMutex lock(mDoAFMutex);
// force AF, Ducati will take care of whether CAF
// or AF will be performed, depending on light conditions
if ( focusControl.eFocusControl == OMX_IMAGE_FocusControlAuto &&
( focusStatus.eFocusStatus == OMX_FocusStatusUnableToReach ||
focusStatus.eFocusStatus == OMX_FocusStatusLost ) ) {
focusControl.eFocusControl = OMX_IMAGE_FocusControlAutoLock;
}
eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
OMX_IndexConfigFocusControl,
&focusControl);
if ( OMX_ErrorNone != eError ) {
CAMHAL_LOGEB("Error while starting focus 0x%x", eError);
return INVALID_OPERATION;
} else {
CAMHAL_LOGDA("Autofocus started successfully");
}
// No need to wait if preview is about to stop
getNextState(state);
if ( ( PREVIEW_ACTIVE & state ) != PREVIEW_ACTIVE ) {
return NO_ERROR;
}
// configure focus timeout based on capture mode
timeout = (mCapMode == VIDEO_MODE) || (mCapMode == VIDEO_MODE_HQ) ?
( ( nsecs_t ) AF_VIDEO_CALLBACK_TIMEOUT * 1000 ) :
( ( nsecs_t ) AF_IMAGE_CALLBACK_TIMEOUT * 1000 );
ret = mDoAFCond.waitRelative(mDoAFMutex, timeout);
}
//If somethiing bad happened while we wait
if (mComponentState == OMX_StateInvalid) {
CAMHAL_LOGEA("Invalid State after Auto Focus Exitting!!!");
return -EINVAL;
}
if(ret != NO_ERROR) {
CAMHAL_LOGEA("Autofocus callback timeout expired");
ret = returnFocusStatus(true);
} else {
CAMHAL_LOGDA("Autofocus callback received");
ret = returnFocusStatus(false);
}
} else { // Focus mode in continuous
if ( NO_ERROR == ret ) {
ret = returnFocusStatus(true);
mPending3Asettings |= SetFocus;
}
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::stopAutoFocus()
{
OMX_ERRORTYPE eError = OMX_ErrorNone;
OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusControl;
LOG_FUNCTION_NAME;
if ( OMX_StateInvalid == mComponentState ) {
CAMHAL_LOGEA("OMX component in Invalid state");
returnFocusStatus(false);
return -EINVAL;
}
if ( OMX_StateExecuting != mComponentState ) {
CAMHAL_LOGEA("OMX component not in executing state");
return NO_ERROR;
}
if ( mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity ) {
// No need to stop focus if we are in infinity mode. Nothing to stop.
return NO_ERROR;
}
OMX_INIT_STRUCT_PTR (&focusControl, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE);
focusControl.eFocusControl = OMX_IMAGE_FocusControlOff;
eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
OMX_IndexConfigFocusControl,
&focusControl);
if ( OMX_ErrorNone != eError ) {
CAMHAL_LOGEB("Error while stopping focus 0x%x", eError);
return Utils::ErrorUtils::omxToAndroidError(eError);
}
#ifdef CAMERAHAL_TUNA
else {
// This is a WA. Usually the OMX Camera component should
// generate AF status change OMX event fairly quickly
// ( after one preview frame ) and this notification should
// actually come from 'handleFocusCallback()'.
android::AutoMutex lock(mDoAFMutex);
mDoAFCond.broadcast();
}
#endif
LOG_FUNCTION_NAME_EXIT;
return NO_ERROR;
}
status_t OMXCameraAdapter::getFocusMode(OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE &focusMode)
{;
OMX_ERRORTYPE eError = OMX_ErrorNone;
LOG_FUNCTION_NAME;
if ( OMX_StateInvalid == mComponentState ) {
CAMHAL_LOGEA("OMX component is in invalid state");
return NO_INIT;
}
OMX_INIT_STRUCT_PTR (&focusMode, OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE);
focusMode.nPortIndex = mCameraAdapterParameters.mPrevPortIndex;
eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp,
OMX_IndexConfigFocusControl,
&focusMode);
if ( OMX_ErrorNone != eError ) {
CAMHAL_LOGEB("Error while retrieving focus mode 0x%x", eError);
}
LOG_FUNCTION_NAME_EXIT;
return Utils::ErrorUtils::omxToAndroidError(eError);
}
status_t OMXCameraAdapter::cancelAutoFocus()
{
status_t ret = NO_ERROR;
OMX_ERRORTYPE eError = OMX_ErrorNone;
OMX_IMAGE_CONFIG_FOCUSCONTROLTYPE focusMode;
LOG_FUNCTION_NAME;
ret = getFocusMode(focusMode);
if ( NO_ERROR != ret ) {
return ret;
}
//Stop the AF only for modes other than CAF, Inifinity or Off
if ( ( focusMode.eFocusControl != OMX_IMAGE_FocusControlAuto ) &&
( focusMode.eFocusControl != ( OMX_IMAGE_FOCUSCONTROLTYPE )
OMX_IMAGE_FocusControlAutoInfinity ) &&
( focusMode.eFocusControl != OMX_IMAGE_FocusControlOff ) ) {
android::AutoMutex lock(mCancelAFMutex);
stopAutoFocus();
ret = mCancelAFCond.waitRelative(mCancelAFMutex, CANCEL_AF_TIMEOUT);
if ( NO_ERROR != ret ) {
CAMHAL_LOGE("Cancel AF timeout!");
}
} else if (focusMode.eFocusControl == OMX_IMAGE_FocusControlAuto) {
// This re-enabling of CAF doesn't seem to
// be needed any more.
// re-apply CAF after unlocking and canceling
// mPending3Asettings |= SetFocus;
}
{
// Signal to 'doAutoFocus()'
android::AutoMutex lock(mDoAFMutex);
mDoAFCond.broadcast();
}
// If the apps call #cancelAutoFocus()}, the face callbacks will also resume.
pauseFaceDetection(false);
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::setFocusCallback(bool enabled)
{
status_t ret = NO_ERROR;
OMX_ERRORTYPE eError = OMX_ErrorNone;
OMX_CONFIG_CALLBACKREQUESTTYPE focusRequstCallback;
LOG_FUNCTION_NAME;
if ( OMX_StateInvalid == mComponentState )
{
CAMHAL_LOGEA("OMX component in Invalid state");
ret = -EINVAL;
}
if ( OMX_StateExecuting != mComponentState )
{
CAMHAL_LOGEA("OMX component not in executing state");
return NO_ERROR;
}
if ( NO_ERROR == ret )
{
OMX_INIT_STRUCT_PTR (&focusRequstCallback, OMX_CONFIG_CALLBACKREQUESTTYPE);
focusRequstCallback.nPortIndex = OMX_ALL;
focusRequstCallback.nIndex = OMX_IndexConfigCommonFocusStatus;
if ( enabled )
{
focusRequstCallback.bEnable = OMX_TRUE;
}
else
{
focusRequstCallback.bEnable = OMX_FALSE;
}
eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
(OMX_INDEXTYPE) OMX_IndexConfigCallbackRequest,
&focusRequstCallback);
if ( OMX_ErrorNone != eError )
{
CAMHAL_LOGEB("Error registering focus callback 0x%x", eError);
ret = -1;
}
else
{
CAMHAL_LOGDB("Autofocus callback for index 0x%x registered successfully",
OMX_IndexConfigCommonFocusStatus);
}
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::returnFocusStatus(bool timeoutReached)
{
status_t ret = NO_ERROR;
OMX_PARAM_FOCUSSTATUSTYPE eFocusStatus;
CameraHalEvent::FocusStatus focusStatus = CameraHalEvent::FOCUS_STATUS_FAIL;
BaseCameraAdapter::AdapterState state, nextState;
BaseCameraAdapter::getState(state);
BaseCameraAdapter::getNextState(nextState);
LOG_FUNCTION_NAME;
OMX_INIT_STRUCT(eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE);
if( ((AF_ACTIVE & state ) != AF_ACTIVE) && ((AF_ACTIVE & nextState ) != AF_ACTIVE) )
{
/// We don't send focus callback if focus was not started
CAMHAL_LOGDA("Not sending focus callback because focus was not started");
return NO_ERROR;
}
if ( NO_ERROR == ret )
{
if ( !timeoutReached )
{
ret = checkFocus(&eFocusStatus);
if ( NO_ERROR != ret )
{
CAMHAL_LOGEA("Focus status check failed!");
}
}
}
if ( NO_ERROR == ret )
{
if ( timeoutReached )
{
focusStatus = CameraHalEvent::FOCUS_STATUS_FAIL;
}
else
{
switch (eFocusStatus.eFocusStatus)
{
case OMX_FocusStatusReached:
{
focusStatus = CameraHalEvent::FOCUS_STATUS_SUCCESS;
break;
}
case OMX_FocusStatusOff: // AF got canceled
return NO_ERROR;
case OMX_FocusStatusUnableToReach:
case OMX_FocusStatusRequest:
default:
{
focusStatus = CameraHalEvent::FOCUS_STATUS_FAIL;
break;
}
}
// Lock CAF after AF call
if( set3ALock(mUserSetExpLock, mUserSetWbLock, OMX_TRUE) != NO_ERROR) {
CAMHAL_LOGEA("Error Applying 3A locks");
} else {
CAMHAL_LOGDA("Focus locked. Applied focus locks successfully");
}
stopAutoFocus();
}
//Query current focus distance after AF is complete
updateFocusDistances(mParameters);
}
ret = BaseCameraAdapter::setState(CAMERA_CANCEL_AUTOFOCUS);
if ( NO_ERROR == ret )
{
ret = BaseCameraAdapter::commitState();
}
else
{
ret |= BaseCameraAdapter::rollbackState();
}
if ( NO_ERROR == ret )
{
notifyFocusSubscribers(focusStatus);
}
// After focus, face detection will resume sending face callbacks
pauseFaceDetection(false);
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::checkFocus(OMX_PARAM_FOCUSSTATUSTYPE *eFocusStatus)
{
status_t ret = NO_ERROR;
OMX_ERRORTYPE eError = OMX_ErrorNone;
LOG_FUNCTION_NAME;
if ( NULL == eFocusStatus )
{
CAMHAL_LOGEA("Invalid focus status");
ret = -EINVAL;
}
if ( OMX_StateInvalid == mComponentState )
{
CAMHAL_LOGEA("OMX component in Invalid state");
ret = -EINVAL;
}
if ( OMX_StateExecuting != mComponentState )
{
CAMHAL_LOGEA("OMX component not in executing state");
ret = NO_ERROR;
}
if ( NO_ERROR == ret )
{
OMX_INIT_STRUCT_PTR (eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE);
eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp,
OMX_IndexConfigCommonFocusStatus,
eFocusStatus);
if ( OMX_ErrorNone != eError )
{
CAMHAL_LOGEB("Error while retrieving focus status: 0x%x", eError);
ret = -1;
}
}
if ( NO_ERROR == ret )
{
CAMHAL_LOGDB("Focus Status: %d", eFocusStatus->eFocusStatus);
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::updateFocusDistances(android::CameraParameters ¶ms)
{
OMX_U32 focusNear, focusOptimal, focusFar;
status_t ret = NO_ERROR;
LOG_FUNCTION_NAME;
ret = getFocusDistances(focusNear, focusOptimal, focusFar);
if ( NO_ERROR == ret)
{
ret = addFocusDistances(focusNear, focusOptimal, focusFar, params);
if ( NO_ERROR != ret )
{
CAMHAL_LOGEB("Error in call to addFocusDistances() 0x%x", ret);
}
}
else
{
CAMHAL_LOGEB("Error in call to getFocusDistances() 0x%x", ret);
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::getFocusDistances(OMX_U32 &near,OMX_U32 &optimal, OMX_U32 &far)
{
status_t ret = NO_ERROR;
OMX_ERRORTYPE eError;
OMX_TI_CONFIG_FOCUSDISTANCETYPE focusDist;
LOG_FUNCTION_NAME;
if ( OMX_StateInvalid == mComponentState )
{
CAMHAL_LOGEA("OMX component is in invalid state");
ret = UNKNOWN_ERROR;
}
if ( NO_ERROR == ret )
{
OMX_INIT_STRUCT_PTR(&focusDist, OMX_TI_CONFIG_FOCUSDISTANCETYPE);
focusDist.nPortIndex = mCameraAdapterParameters.mPrevPortIndex;
eError = OMX_GetConfig(mCameraAdapterParameters.mHandleComp,
( OMX_INDEXTYPE ) OMX_TI_IndexConfigFocusDistance,
&focusDist);
if ( OMX_ErrorNone != eError )
{
CAMHAL_LOGEB("Error while querying focus distances 0x%x", eError);
ret = UNKNOWN_ERROR;
}
}
if ( NO_ERROR == ret )
{
near = focusDist.nFocusDistanceNear;
optimal = focusDist.nFocusDistanceOptimal;
far = focusDist.nFocusDistanceFar;
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::encodeFocusDistance(OMX_U32 dist, char *buffer, size_t length)
{
status_t ret = NO_ERROR;
uint32_t focusScale = 1000;
float distFinal;
LOG_FUNCTION_NAME;
if(mParameters3A.Focus == OMX_IMAGE_FocusControlAutoInfinity)
{
dist=0;
}
if ( NO_ERROR == ret )
{
if ( 0 == dist )
{
strncpy(buffer, android::CameraParameters::FOCUS_DISTANCE_INFINITY, ( length - 1 ));
}
else
{
distFinal = dist;
distFinal /= focusScale;
snprintf(buffer, ( length - 1 ) , "%5.3f", distFinal);
}
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::addFocusDistances(OMX_U32 &near,
OMX_U32 &optimal,
OMX_U32 &far,
android::CameraParameters& params)
{
status_t ret = NO_ERROR;
LOG_FUNCTION_NAME;
if ( NO_ERROR == ret )
{
ret = encodeFocusDistance(near, mFocusDistNear, FOCUS_DIST_SIZE);
if ( NO_ERROR != ret )
{
CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret);
}
}
if ( NO_ERROR == ret )
{
ret = encodeFocusDistance(optimal, mFocusDistOptimal, FOCUS_DIST_SIZE);
if ( NO_ERROR != ret )
{
CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret);
}
}
if ( NO_ERROR == ret )
{
ret = encodeFocusDistance(far, mFocusDistFar, FOCUS_DIST_SIZE);
if ( NO_ERROR != ret )
{
CAMHAL_LOGEB("Error encoding near focus distance 0x%x", ret);
}
}
if ( NO_ERROR == ret )
{
snprintf(mFocusDistBuffer, ( FOCUS_DIST_BUFFER_SIZE - 1) ,"%s,%s,%s", mFocusDistNear,
mFocusDistOptimal,
mFocusDistFar);
params.set(android::CameraParameters::KEY_FOCUS_DISTANCES, mFocusDistBuffer);
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t OMXCameraAdapter::setTouchFocus()
{
status_t ret = NO_ERROR;
OMX_ERRORTYPE eError = OMX_ErrorNone;
OMX_ALGOAREASTYPE *focusAreas;
OMX_TI_CONFIG_SHAREDBUFFER sharedBuffer;
CameraBuffer *bufferlist;
int areasSize = 0;
LOG_FUNCTION_NAME;
if ( OMX_StateInvalid == mComponentState )
{
CAMHAL_LOGEA("OMX component is in invalid state");
ret = -1;
}
if ( NO_ERROR == ret )
{
areasSize = ((sizeof(OMX_ALGOAREASTYPE)+4095)/4096)*4096;
bufferlist = mMemMgr.allocateBufferList(0, 0, NULL, areasSize, 1);
focusAreas = (OMX_ALGOAREASTYPE*) bufferlist[0].opaque;
OMXCameraPortParameters * mPreviewData = NULL;
mPreviewData = &mCameraAdapterParameters.mCameraPortParams[mCameraAdapterParameters.mPrevPortIndex];
if (!focusAreas)
{
CAMHAL_LOGEB("Error allocating buffer for focus areas %d", eError);
return -ENOMEM;
}
OMX_INIT_STRUCT_PTR (focusAreas, OMX_ALGOAREASTYPE);
focusAreas->nPortIndex = OMX_ALL;
focusAreas->nNumAreas = mFocusAreas.size();
focusAreas->nAlgoAreaPurpose = OMX_AlgoAreaFocus;
// If the area is the special case of (0, 0, 0, 0, 0), then
// the algorithm needs nNumAreas to be set to 0,
// in order to automatically choose the best fitting areas.
if ( mFocusAreas.itemAt(0)->isZeroArea() )
{
focusAreas->nNumAreas = 0;
}
for ( unsigned int n = 0; n < mFocusAreas.size(); n++) {
int widthDivisor = 1;
int heightDivisor = 1;
if (mPreviewData->mFrameLayoutType == OMX_TI_StereoFrameLayoutTopBottom) {
heightDivisor = 2;
}
if (mPreviewData->mFrameLayoutType == OMX_TI_StereoFrameLayoutLeftRight) {
widthDivisor = 2;
}
// transform the coordinates to 3A-type coordinates
mFocusAreas.itemAt(n)->transfrom((size_t)mPreviewData->mWidth/widthDivisor,
(size_t)mPreviewData->mHeight/heightDivisor,
(size_t&)focusAreas->tAlgoAreas[n].nTop,
(size_t&)focusAreas->tAlgoAreas[n].nLeft,
(size_t&)focusAreas->tAlgoAreas[n].nWidth,
(size_t&)focusAreas->tAlgoAreas[n].nHeight);
focusAreas->tAlgoAreas[n].nLeft =
( focusAreas->tAlgoAreas[n].nLeft * TOUCH_FOCUS_RANGE ) / mPreviewData->mWidth;
focusAreas->tAlgoAreas[n].nTop =
( focusAreas->tAlgoAreas[n].nTop* TOUCH_FOCUS_RANGE ) / mPreviewData->mHeight;
focusAreas->tAlgoAreas[n].nWidth =
( focusAreas->tAlgoAreas[n].nWidth * TOUCH_FOCUS_RANGE ) / mPreviewData->mWidth;
focusAreas->tAlgoAreas[n].nHeight =
( focusAreas->tAlgoAreas[n].nHeight * TOUCH_FOCUS_RANGE ) / mPreviewData->mHeight;
focusAreas->tAlgoAreas[n].nPriority = mFocusAreas.itemAt(n)->getWeight();
CAMHAL_LOGDB("Focus area %d : top = %d left = %d width = %d height = %d prio = %d",
n, (int)focusAreas->tAlgoAreas[n].nTop, (int)focusAreas->tAlgoAreas[n].nLeft,
(int)focusAreas->tAlgoAreas[n].nWidth, (int)focusAreas->tAlgoAreas[n].nHeight,
(int)focusAreas->tAlgoAreas[n].nPriority);
}
OMX_INIT_STRUCT_PTR (&sharedBuffer, OMX_TI_CONFIG_SHAREDBUFFER);
sharedBuffer.nPortIndex = OMX_ALL;
sharedBuffer.nSharedBuffSize = areasSize;
sharedBuffer.pSharedBuff = (OMX_U8 *) camera_buffer_get_omx_ptr (&bufferlist[0]);
if ( NULL == sharedBuffer.pSharedBuff )
{
CAMHAL_LOGEA("No resources to allocate OMX shared buffer");
ret = -ENOMEM;
goto EXIT;
}
eError = OMX_SetConfig(mCameraAdapterParameters.mHandleComp,
(OMX_INDEXTYPE) OMX_TI_IndexConfigAlgoAreas, &sharedBuffer);
if ( OMX_ErrorNone != eError )
{
CAMHAL_LOGEB("Error while setting Focus Areas configuration 0x%x", eError);
ret = -EINVAL;
}
EXIT:
if (NULL != bufferlist)
{
mMemMgr.freeBufferList (bufferlist);
}
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
void OMXCameraAdapter::handleFocusCallback() {
OMX_PARAM_FOCUSSTATUSTYPE eFocusStatus;
CameraHalEvent::FocusStatus focusStatus = CameraHalEvent::FOCUS_STATUS_FAIL;
status_t ret = NO_ERROR;
BaseCameraAdapter::AdapterState nextState;
BaseCameraAdapter::getNextState(nextState);
OMX_INIT_STRUCT(eFocusStatus, OMX_PARAM_FOCUSSTATUSTYPE);
ret = checkFocus(&eFocusStatus);
if (NO_ERROR != ret) {
CAMHAL_LOGEA("Focus status check failed!");
// signal and unblock doAutoFocus
if (AF_ACTIVE & nextState) {
android::AutoMutex lock(mDoAFMutex);
mDoAFCond.broadcast();
}
return;
}
if ( eFocusStatus.eFocusStatus == OMX_FocusStatusOff ) {
android::AutoMutex lock(mCancelAFMutex);
mCancelAFCond.signal();
return;
}
if (eFocusStatus.eFocusStatus != OMX_FocusStatusRequest) {
// signal doAutoFocus when a end of scan message comes
// ignore start of scan
android::AutoMutex lock(mDoAFMutex);
mDoAFCond.broadcast();
}
if (mParameters3A.Focus != (OMX_IMAGE_FOCUSCONTROLTYPE) OMX_IMAGE_FocusControlAuto) {
CAMHAL_LOGDA("unregistered focus callback when not in CAF or doAutoFocus... not handling");
return;
}
// Handling for CAF Callbacks
switch (eFocusStatus.eFocusStatus) {
case OMX_FocusStatusRequest:
focusStatus = CameraHalEvent::FOCUS_STATUS_PENDING;
break;
case OMX_FocusStatusReached:
case OMX_FocusStatusOff:
case OMX_FocusStatusUnableToReach:
default:
focusStatus = CameraHalEvent::FOCUS_STATUS_DONE;
break;
}
notifyFocusSubscribers(focusStatus);
}
} // namespace Camera
} // namespace Ti