osd.c

ct952 source code use for Digital Frame Photo

        
        if (bMessage == _OSDNUCurMsg.bMessage)
        {
            _OSDNUCurMsg.bMessage = MSG_NULL;
            _OSDNUCurMsg.bSec = 0;
        }
        else if (bMessage == _OSDNBCurMsg.bMessage)
        {
            _OSDNBCurMsg.bMessage = MSG_NULL;
            _OSDNBCurMsg.bSec = 0;
        }
    }

    _OSD_RemoveMsgFromStack(bMessage);
}



//***************************************************************************
//  Function    :   OSD_ChangeUI
//  Abstract    :   This function will change the UI and do recovery for each UI.
//  Arguments   :   bUI: The UI
//              :   bAction : OSD_ENTER_UI==>The UI enters.
//              :           : OSD_EXIT_UI==>The UI exits.
//  Return      :   none.
//  Side Effect :   none.
//  Notes       :   
//***************************************************************************
void OSD_ChangeUI(BYTE bUI, BYTE bAction)
{
    BYTE bRecoverDynamicRegion = FALSE;

    //Recover the normal display attributes.
    OSDND_Update(MSG_DEFAULT_STATE, 0);

    //Reset this flag to prevent volume bar/Key/Echo bar is not re-drawed again.
    //__bOSDClearNDBRegion = TRUE;
    __bOSDForceToClearNBRegion = TRUE;

    if (bAction == OSD_ENTER_UI)
    {
        //judge the UI's layer
        if (_OSD_GetUILayer(bUI) > _OSD_GetUILayer(_bOSDCurrentUI))
        {
            //Push current UI to UI's stack.
            _OSDUIStack[_bOSDUIStackIndex] = _bOSDCurrentUI;
            _bOSDUIStackIndex++;
        }
        else if (_OSD_GetUILayer(bUI) == _OSD_GetUILayer(_bOSDCurrentUI))
        {
            //Call current UI's "exit" function to exit the UI and don't do the recovery.(The UI can't call OSD_ChangeUI(bUI, OSD_EXIT_UI))
            //_OSD_ExitUI(bUI, OSD_UI_EXIT_ALL);
            _OSD_ExitUI(_bOSDCurrentUI, OSD_UI_EXIT_ALL);
        }
        else // The new UI's layer < current UI. This is an illegal case
        {
            return;
        }

        _bOSDCurrentUI = bUI;

#ifdef USE_MINI_OSD_REGION
        if ((_bOSDCurrentUI == OSD_UI_SETUP) || (_bOSDCurrentUI == OSD_UI_MAIN_MENU) || (_bOSDCurrentUI == OSD_UI_SCREEN_SAVER) ||
            (_bOSDCurrentUI == OSD_UI_DVD_PROGRAM) || (_bOSDCurrentUI == OSD_UI_BOOKMARK) || (_bOSDCurrentUI == OSD_UI_MEDIA_SELECT_DLG))
#else
        if ((_bOSDCurrentUI == OSD_UI_SETUP) || (_bOSDCurrentUI == OSD_UI_MAIN_MENU) || (_bOSDCurrentUI == OSD_UI_SCREEN_SAVER))
#endif //USE_MINI_OSD_REGION
        {
            if (_OSDNBCurMsg.bMessage != MSG_NULL && _OSDNBCurMsg.bSec != 0xFF)
            {
                __bOSDClearNDBRegion = TRUE;                    
                _OSDNBCurMsg.bMessage = MSG_NULL;

                if (_bOSDNBIndex > 0) //The stack has forever message to be recovered.
                {
                    _OSDNBCurMsg.bMessage = _OSDNBStack[_bOSDNBIndex-1].bMessage;
                    _OSDNBCurMsg.wParam = _OSDNBStack[_bOSDNBIndex-1].wParam;
                    _OSDNBCurMsg.bSec = _OSDNBStack[_bOSDNBIndex-1].bSec;
                    _bOSDNBIndex--;
                }
            }

            if (_OSDNUCurMsg.bMessage != MSG_NULL && _OSDNUCurMsg.bSec != 0xFF)
            {
                _OSDNUCurMsg.bMessage = MSG_NULL;

                if (_bOSDNUIndex > 0) //The stack has forever message to be recovered.
                {
                    _OSDNUCurMsg.bMessage = _OSDNUStack[_bOSDNUIndex-1].bMessage;
                    _OSDNUCurMsg.wParam = _OSDNUStack[_bOSDNUIndex-1].wParam;
                    _OSDNUCurMsg.bSec = _OSDNUStack[_bOSDNUIndex-1].bSec;
                    _bOSDNUIndex--;
                }
            }
        }
        
        //Config each UI's region
        _OSD_ConfigRegion(_bOSDCurrentUI);

#ifdef SUPPORT_GRAPH_ZOOM
        //Clear PIP
        if ((_bOSDCurrentUI != OSD_UI_DISPLAY) && (__bZoomFactor != VIEW_NORMAL))
        {
            OSDND_Update(MSG_ZOOM, VIEW_NORMAL);
        }
#endif
    }
    else if (bAction == OSD_EXIT_UI)
    {
        //Recover the normal display attributes.
        //OSDND_Update(MSG_DEFAULT_STATE, 0);

        //Setup UI is a special UI that we will recover NU/NB message always.
#ifdef USE_MINI_OSD_REGION
        if ((_bOSDCurrentUI == OSD_UI_SETUP) || (_bOSDCurrentUI == OSD_UI_MAIN_MENU) || (_bOSDCurrentUI == OSD_UI_SCREEN_SAVER) ||
#ifdef SUPPORT_POWERON_MENU //CoCo2.38
            (_bOSDCurrentUI == OSD_UI_POWERON_MENU) ||
#endif
            (_bOSDCurrentUI == OSD_UI_DVD_PROGRAM) || (_bOSDCurrentUI == OSD_UI_BOOKMARK) || (_bOSDCurrentUI == OSD_UI_MEDIA_SELECT_DLG))
#else //USE_MINI_OSD_REGION
        if ((_bOSDCurrentUI == OSD_UI_SETUP) || (_bOSDCurrentUI == OSD_UI_MAIN_MENU) || (_bOSDCurrentUI == OSD_UI_SCREEN_SAVER)
#ifdef SUPPORT_POWERON_MENU //CoCo2.38
            || (_bOSDCurrentUI == OSD_UI_POWERON_MENU)
#endif            
            )
#endif //USE_MINI_OSD_REGION
        {
            //CoCo1.10, support OSD dynamic region
            bRecoverDynamicRegion = TRUE;
            
            if (_OSDNUCurMsg.bSec == 0xFF)
            {
                _OSD_ConfigRegion(OSD_UI_NONE);
                OSDND_Update(_OSDNUCurMsg.bMessage, _OSDNUCurMsg.wParam);
            }
            
            if (_OSDNBCurMsg.bSec == 0xFF)
            {
                _OSD_ConfigRegion(OSD_UI_NONE);
                OSDND_Update(_OSDNBCurMsg.bMessage, _OSDNBCurMsg.wParam);
            }
        }

        //Pop-up the UI from UI's stack.
        //Check if any UI needs to be recovered.
        if (_bOSDUIStackIndex != 0) //Some UI has been pushed to the stack.
        {            
            //Set current UI to the pop-up UI.
            _bOSDCurrentUI = _OSDUIStack[_bOSDUIStackIndex-1];
            _bOSDUIStackIndex--;

            //CoCo2.56, fix the problem about subtitle will be recovered abnormally in 64M solution.
            if ((_bOSDCurrentUI == OSD_UI_SETUP) || (_bOSDCurrentUI == OSD_UI_MAIN_MENU)
#ifdef SUPPORT_POWERON_MENU 
                || (_bOSDCurrentUI == OSD_UI_POWERON_MENU)
#endif            
                )
            {
                bRecoverDynamicRegion = FALSE;
            }

            //Call the pop-up UI's OSDXXX_Recover().
            if (!_OSD_RecoverUI(_bOSDCurrentUI, OSD_RECOVER_ALL))
            {
                //CoCo, fix the problem about "Repeat A-B" message is not recovered after SETUP==>SETUP==>MM UI.
                if (_OSDNUCurMsg.bSec == 0xFF)
                {
                    OSDND_Update(_OSDNUCurMsg.bMessage, _OSDNUCurMsg.wParam);
                }

                if (_OSDNBCurMsg.bSec == 0xFF)
                {
                    OSDND_Update(_OSDNBCurMsg.bMessage, _OSDNBCurMsg.wParam);
                }
            }
        }
        else //The stack doesn't have any UI.
        {
            _bOSDCurrentUI = OSD_UI_NONE; //Normal Display mode.
            _OSD_ConfigRegion(_bOSDCurrentUI);
        }

        if (bRecoverDynamicRegion)
        {
            _OSD_RecoverDynamicRegion();
        }

#ifdef SUPPORT_GRAPH_ZOOM
        //Recover PIP
        //if ((_bOSDCurrentUI != OSD_UI_DISPLAY) && (__bZoomFactor != VIEW_NORMAL))
        if (((_bOSDCurrentUI == OSD_UI_DISPLAY) || (_bOSDCurrentUI == OSD_UI_NONE)) && (__bZoomFactor != VIEW_NORMAL)) //CoCo1.02
        {
            OSDND_Update(MSG_ZOOM, __bZoomFactor);
        }
#endif
    }
}

//***************************************************************************
//  Function    :   _OSD_GetUILayer
//  Abstract    :   This function will get the layer of the UI.
//  Arguments   :   bUI: The UI
//  Return      :   The layer of the UI.
//  Side Effect :   none.
//  Notes       :   
//***************************************************************************
BYTE _OSD_GetUILayer(BYTE bUI)
{
    switch (bUI)
    {
    case OSD_UI_NONE:                   //Normal Display
        _bOSDTemp = OSD_UI_LAYER_0;
        break;
    case OSD_UI_DISPLAY:                //Display mode
        _bOSDTemp = OSD_UI_LAYER_1;
        break;
    case OSD_UI_MEDIA_MANAGER:          //Media Manager
    case OSD_UI_THUMBNAIL:              //Thumbnail
    case OSD_UI_SEARCH:                 //Search UI
    case OSD_UI_DVD_PROGRAM:            //VCD/DVD Program
    case OSD_UI_DIGEST:                 //Digest
    case OSD_UI_BOOKMARK:               //Bookmark
    case OSD_UI_PASSWORD:               //DVD Password Dialog
#ifdef SUPPORT_POWERON_MENU //CoCo2.38
    case OSD_UI_POWERON_MENU:           //Power on Menu //CoCo2.38
#endif //
#ifdef SUPPORT_INDEPENDENT_NAVIGATOR //CoCo1.0, support independent Navigator UI
    case OSD_UI_NAVIGATOR:
#endif
#ifdef SUPPORT_COPY_FILE_IN_SLIDE_SHOW
    case OSD_UI_COPY_DELETE_DLG:
#endif //SUPPORT_COPY_FILE_IN_SLIDE_SHOW
#ifdef SUPPORT_RADIO_TUNER
    case OSD_UI_RADIO_TUNER:
#endif //SUPPORT_RADIO_TUNER		
        _bOSDTemp = OSD_UI_LAYER_2;
        break;
    case OSD_UI_MEDIA_SELECT_DLG:       //Media Select Dialog box
    case OSD_UI_SETUP:                  //SETUP
    case OSD_UI_MAIN_MENU:              //Main Menu
        _bOSDTemp = OSD_UI_LAYER_3;
        break;
    case OSD_UI_PSCAN_PROMPT_DLG:
    case OSD_UI_COMMON_DLG:
        _bOSDTemp = OSD_UI_LAYER_4;
        break;
    case OSD_UI_SCREEN_SAVER:           //Screen Saver
        _bOSDTemp = OSD_UI_LAYER_5;
        break;
    default:                            //unknown UI
        _bOSDTemp = OSD_UI_LAYER_0;
        break;
    }

    return _bOSDTemp;
}

//***************************************************************************
//  Function    :   _OSD_ExitUI
//  Abstract    :   This function will call the UI's "exit" function to notify 
//              :   the UI to exit and don't do recovery.
//  Arguments   :   bUI: the UI. bExitMode: OSD_UI_EXIT_ALL/OSD_UI_EXIT_CONTROL_ONLY.
//  Return      :   none.
//  Side Effect :   none.
//  Notes       :   
//***************************************************************************
void _OSD_ExitUI(BYTE bUI, BYTE bExitMode)
{
    switch (bUI)
    {
    case OSD_UI_DISPLAY:                //Display mode
        OSDDSPLY_Exit(bExitMode);
        break;
    case OSD_UI_MEDIA_MANAGER:          //File Manager        
        MM_Exit(bExitMode);
        break;
    case OSD_UI_THUMBNAIL:              //Thumbnail        
        THUMB_Exit(bExitMode);
        break;
#ifndef NO_SEARCH_UI //++CoCo2.37p
    case OSD_UI_SEARCH:                 //Search UI
        OSDSRCH_Exit(bExitMode);
        break;
#endif //#ifndef NO_SEARCH_UI //++CoCo2.37p
#ifndef NO_DVD_PASSWORD_DLG //CoCo2.38
    case OSD_UI_PASSWORD:               //DVD Password Dialog
        OSDPASSWORD_Exit(bExitMode);
        break;
#endif //NO_DVD_PASSWORD_DLG
#ifndef NO_PROGRAM_UI //++CoCo2.37p
    case OSD_UI_DVD_PROGRAM:            //VCD/DVD Program
        OSDPRGM_Exit(bExitMode);
        break;
#endif //#ifndef NO_PROGRAM_UI //++CoCo2.37p
    case OSD_UI_DIGEST:                 //Digest
        break;
    case OSD_UI_MEDIA_SELECT_DLG:       //Media Select Dialog box
        MEDIA_MediaSelection_Exit(bExitMode);
        break;
    case OSD_UI_PSCAN_PROMPT_DLG:       //The PSCAN prompt dialog box
        break;
    case OSD_UI_BOOKMARK:               //Bookmark
#ifdef SUPPORT_BOOKMARK
        OSDBOOKMARK_Exit(bExitMode);
#endif //
        break;
#ifndef SUPPORT_STB
    case OSD_UI_SETUP:                  //SETUP
#ifdef IMAGE_FRAME_SETUP
        MAINMENU_Exit(bExitMode);
#else
        SETUP_Exit(bExitMode);
#endif //IMAGE_FRAME_SETUP
        break;
#endif //SUPPORT_STB

#ifdef SUPPORT_STB
    case OSD_UI_MAIN_MENU:              //Main Menu
        MAINMENU_Exit(bExitMode);
        break;
#endif //SUPPORT_STB
    case OSD_UI_SCREEN_SAVER:           //Screen Saver
#ifndef NO_SCREEN_SAVER
        OSDSS_Exit(bExitMode);
#endif //
        break;
    case OSD_UI_COMMON_DLG:
        OSDCOMDLG_Exit(bExitMode);         //For common dialog box.
        break;
#ifdef SUPPORT_NAVIGATOR //++CoCo2.37p
#ifdef SUPPORT_INDEPENDENT_NAVIGATOR //CoCo1.0, support independent Navigator UI
    case OSD_UI_NAVIGATOR:
        OSDDSPLY_NAVIGATOR_Exit(bExitMode);
        break;
#endif //SUPPORT_INDEPENDENT_NAVIGATOR
#endif //#ifdef SUPPORT_NAVIGATOR //++CoCo2.37p
#ifdef SUPPORT_POWERON_MENU //CoCo2.38
    case OSD_UI_POWERON_MENU:           //Power on Menu
        POWERONMENU_Exit(bExitMode);
        break;
#endif //SUPPORT_POWERON_MENU
#ifdef SUPPORT_COPY_FILE_IN_SLIDE_SHOW
    case OSD_UI_COPY_DELETE_DLG:
        OSDMM_CopyDeleteDlg_Exit(bExitMode);
        break;
#endif //SUPPORT_COPY_FILE_IN_SLIDE_SHOW
#ifdef SUPPORT_RADIO_TUNER
    case OSD_UI_RADIO_TUNER:		//Radio Tuner
        RADIO_Exit(bExitMode);
        break;
#endif //SUPPORT_RADIO_TUNER
    default:                            //unknown UI
        break;
    }    
}

//***************************************************************************
//  Function    :   _OSD_RecoverUI
//  Abstract    :   This function will call the UI's OSDXXX_Recover function to 
//              :   recover the UI.
//  Arguments   :   bUI: The UI needs to be recovered.
//              :   bRecoverType:   OSD_RECOVER_ALL==>Recover all region.
//              :                   OSD_RECOVER_UPPER_REGION==>Recover upper region.
//              :                   OSD_RECOVER_BOTTOM_REGION==>Recover bottom region.
//  Return      :   TRUE: It has been recoverd. FALSE: The UI doesn't do recovery for this region.
//  Side Effect :   none.
//  Notes       :   
//***************************************************************************
BYTE _OSD_RecoverUI(BYTE bUI, BYTE bRecoverType)
{
    _bOSDTemp = FALSE;

    if (bRecoverType == OSD_RECOVER_ALL)
    {
        _OSD_ConfigRegion(bUI);