linear.c

ct952 source code use for Digital Frame Photo

    if (PARSER_QueryEvent( 0, PARSER_EVENT_COMPLETED, FALSE)) //LJY0.67, check parsing OK.(for bitstream end detection)
    {
        //LJY0.65, set it TURE for waiting buffer to be consumed.
//        __btPlayEnd = TRUE;

        HAL_ReadInfo(HAL_INFO_VIDEO_REMAIN, &__dwTemp);
        if(__dwTemp > 0x100)
        {
            return ERR_NOERR;
        }

        // DVD_161Micky, wait CD-DA data  buffer end.
        // so the track end display time won't less than one second.
        // LLY.274p, check playing mode method has updated
        //if (__bModePlay & MODE_PLAYCDDA)
        if(__bAttrPlay == ATTR_CDDA)
        {
            __dwSystemTimer=0;
//LJY1.21, LJY1.11, let CDDA can play till track end.

                HAL_ReadInfo(HAL_INFO_AUDIO_REMAIN, &__dwTemp);

        // wyc.172-CDDA, remove follow code to save time for playing CDDA medley title.
#ifndef SUPPORT_PLAY_MEDLEYCDDA
				if (__dwTemp > 0x30)
#else
				if (__dwTemp > 10000)
#endif //
					return ERR_ERROR; //LJY.pc908.060
            UTL_OutputShowTime();
        }

        //CHIPS_OpenAudio (FALSE);
/* Alan1.06 remove
        // wyc.172-CDDA, if play CDDA medley title we not mute the audio when across tracks.
//LJY1.21, LJY1.11, let VCD can play till track end.
#ifdef SUPPORT_ANTISHOCK
        else
        {
            //LJY1.11d, ~0.5sec tolerance for track change.
           //LJY1.24a, using UTL_EstimateBufferTime() for code refinement.
            __dwTemp = UTL_EstimateBufferTime();
            if((__dwTimeNow - __dwTemp) < (__dwTimeEnd- __wTemp))
                return ERR_ERROR;
        }
#endif
*/

#ifdef SUPPORT_PLAY_MEDLEYCDDA
        if (!(__wDiscType & BOOK_CDDA))
#endif //
        CHIPS_OpenAudio (FALSE);
        __dwTimeNow= __dwTimeBegin;
        __btPlaying= FALSE;
        __btPlayEnd= TRUE;
        PARSER_QueryEvent( 0, PARSER_EVENT_COMPLETED, TRUE); //LJY0.67, clear the flag of "PARSER_EVENT_COMPLETED".
        // PlayEnd, must check repeat AB
        //#if 1 to disable REPEATAB cross track
    }
    else if (__btIntroMode)
    {
        if ( __dwTimeNow > (__dwTimeBegin + __dwIntroPlayTime) )
        {
        __dwTimeNow= __dwTimeBegin;
        __btPlaying= FALSE;
        __btPlayEnd= TRUE;
        CHIPS_OpenAudio (FALSE);
        }
    }

    if ( ! __btPlayEnd )
        return ERR_ERROR;

    // STEP mode can't allow from the start of playing track
    if  ( (__bModeCmd == KEY_STEP) || (__bModeCmd==KEY_FREEZE) )
    {
        __bModeCmd=KEY_PLAY;
        //__btVideoFreeze=FALSE;
    }

    //Alan1.02a, Bug #286
    OS_DelayTime(COUNT_50_MSEC); //CoCo1.20, reduce code size

    // wyc.172-CDDA, we add a parameter for CDDA playing, when 1 to represent playing across
    // tracks automatically. 0 means press keys to across tracks.
    LINEAR_ChangeTrack(KEY_NEXT, 1);

    return ERR_NOERR;
}

//  *********************************************************************
//  Function    :   LINEAR_PlayItem
//  Description :   Will get the range of __wPlayItem, and start play
//  Arguments   :   None
//
//  Return      :   None
//  Change      :   __wPlayItem
//  Side Effect :
//  *********************************************************************
void LINEAR_PlayItem()
{
    // Pause->Playing
    // do not re-initial the play range
    // just resume from the current time(__dwTimeNow)

    if ( __btPause )
    {
//        if(__dwTimeNow==0)
//            printf("[1] Play Item w/ zero\n");

        UTL_PlayItem (__wPlayItem, __dwTimeNow );
    }
    else    // Stop->Playing
    {
        // Micky1.07-2, DVD only need the action that UTL_PlayItem.
        // DVD PGM->play->next(auto or user key)-> will call LINEAR_ChangeTrack-> NV_TitlePlay
        // CC_KeyCommand->Get_PlayRange-> LINEAR_PlayItem-> only need do reset+command.
#ifndef NO_DISC_MODE //CoCo2.37p
        if (__wDiscType & BOOK_DVD)
        {
            // Micky1.10, fix stop->program-> play, always play TT/CC 1/1.
            // For DVD, RESUME-> PLAY, use common path
            // For VCD, RESUME-> KEY_GOTOTIME_PLAY
            // PGM + RESUME, RESUME should be high priority
            if ( __bModeCELLTimeSearch != CELL_TIME_BEGIN )
            {
                UTL_PlayItem (__wPlayItem, 0 );
                return;
            }
        }
#endif //#ifndef NO_DISC_MODE //CoCo2.37p

        // 1. for PROGRAM mode,
        // first must get Program entry, and mapping to __wPlayItem
        // Must send program index for next track
        if ( __btPlayingProgram )
        {
            // wyc.pro __wProgramData[0] -> __bProgramMaxEntry
            if ( __bProgramMaxEntry )    // Program has entries
            {
                // wyc.pro to let DVD can run program playing from stop mode
#ifndef NO_DISC_MODE //CoCo2.37p
                if (__wDiscType & BOOK_DVD)
                {
                    __bTemp = _LinearEntryOperation(LINEAR_FIND_ENTRY,1);
                    if (__bTemp == 1)
                    {
//Kevin0.86, __bTitle/__wChapter for font mode / GDI mode program UI
                        __bTitle = __ProgIdxList[__bProgramPlayingIndex].bMainIndex;
                        __wChapter = __ProgIdxList[__bProgramPlayingIndex].wSubIndex;

                        NV_TitlePlay(__bTitle,__wChapter);

                        //Ming0.72, Must restore the command before next play in PROGRAM mode.
                        // TODO: Must review all the codes which call audio reset.
                        UTL_TransferCommandID(__bModeCmd);

                    }
                    else
                        __bFWKey = KEY_STOP;
                }
                else
#endif //#ifndef NO_DISC_MODE //CoCo2.37p
                {
//Kevin0.86, __wPlayItem for font mode / GDI mode program UI
                    __MMPlayingItem.wDirID = __ProgIdxList[__bProgramPlayingIndex].bMainIndex;   //for FM use only
			 __wPlayItem= __ProgIdxList[__bProgramPlayingIndex].wSubIndex;

                    // for VCD, the __wPlayItem=TrackNO+1;
                    if ( __wDiscType & BOOK_VCD )
                        __wPlayItem++;
                }
            }
//DEBUG            // must debug, will come here???
            else        // Program has no entry
            {
                // DVD_100aMicky, clear __btProgram first
                // as panel will reference it from panel 2.00
                /*__btProgram= FALSE;         // no recording program-data
                __btPlayingProgram = FALSE;
                __bMMMenuID = FM_MENU_NORMAL;*/
                // wyc1.10-3, clear all program variables to avoid sometimes the UI in program mode but __btProgram is FALSE.
                LINEAR_Program(LINEAR_PROGRAM_CLEAR,NULL_0);
//                OSD_OUTPUT_MACRO(MSG_CLEARPROGRAM, FALSE, 0); //CoCo.101
            }
        }

        // 2. for Random mode
        // must random give a __wPlayItem
        if ( __btRandom )
        {
#ifndef  NO_MP3
            if (__wDiscType & CDROM_M1)
            {
                // wyc1.07, because old method only search 100 times to try to find playable files dir, and __dwCountSystem will be similar
                // when searching this 100 times. So it is possible of finding no playable dir in this searching and __MMPlayingItem.wDirID will be assign
                // a unknown value. So add protection to make sure we can get a playable dir index after this loop.
                // wyc0.85a, use new structure because of supporting sort/filter now.
                __MMPlayingItem.wDirID = (BYTE)(OS_GetSysTimer() % __bMMTotalDirs);
                while (__pMMFilterFilesOfDir[__MMPlayingItem.wDirID] == 0)
                {
                    // wyc1.21, the old method to compute directory / files have bugs and will cause Picture CD go wrong
                    // dir / file in random mode. Modify to fix it.
                    __MMPlayingItem.wDirID++;
                    if ( __MMPlayingItem.wDirID >= __bMMTotalDirs)
                        __MMPlayingItem.wDirID = 0;
                }

                __wPlayItem = (WORD)(OS_GetSysTimer() % __pMMFilterFilesOfDir[__MMPlayingItem.wDirID]);
                __wPlayItem+= __wTrackBegin;
            }
            else
#endif
            {
                __wPlayItem= (WORD)(OS_GetSysTimer() % (__wTrackEnd- __wTrackBegin+ 1));
                __wPlayItem+= __wTrackBegin;
            }
        }
        //DVD_047
        // for DVD, don't call this, as it will clear current time as 0
        // cause KEY_NEXT/PREV will show time 0 then chapter time
        if ( !(__wDiscType & BOOK_DVD) )
            UTL_ShowTrack ( MSG_TRACK, __wPlayItem, 3 );

        // play the __wPlayItem from the beginning

#ifndef NO_MP3
        if (__wDiscType & CDROM_M1)
        {
#ifdef  SUPPORT_ENCODE_JPG_PICTURE
			if(__SF_SourceGBL[0].bSourceIndex!= SOURCE_SPI) //winnie2.51,the jpg can't do MM_PlayItem from SPI flash
				MM_PlayItem(__wPlayItem);
#else
            MM_PlayItem(__wPlayItem);
#endif //SUPPORT_ENCODE_JPG_PICTURE
			
        }
#endif  // #ifndef NO_MP3

        // LLY1.01, let CDROM motion go different path
        // Since, F/W need to pre-scan some necessary information first
        if(__wDiscType & CDROM_M1)
        {

            if( UTL_CheckPlayItemMode(__wPlayItem)==MODE_PLAYMOTION )
            {
                // Do initial before playback a new item
                UTL_Init_PlayItem(__wPlayItem);

                // LLY1.02, check previous and new play item & directory are same
                // And, keep desired play item & dir into __wPrevPlayItem and __wPrePlayDir if not same
                // to identify previous and new play item & direcory are same
                if( (__wPrevPlayDir==__MMPlayingItem.wDirID) && (__wPrevPlayItem==__wPlayItem))
                {
                    __bSameItem=TRUE;
                }
                else
                {
                    __bSameItem=FALSE;
                }

#ifdef SUPPORT_SERVO_SOURCE //++CoCo2.37p
                // LLY1.11, pre-start servo first to avoid servo @ stop state
                // Since, motion file pre-scan action will need servo read data action
                // And, our normal code will do servo pre-start @ UTL_Start_PlayItem()
                UTL_PreStartServo(__dwTimeNow, ACTION_SKIP);
#endif //#ifdef SUPPORT_SERVO_SOURCE //++CoCo2.37p


                // LLY1.20, integrate parsing SP file action into _MM_MotionTrigger()
#if 0//def  SUPPORT_CHAR_SUBPICTURE
                // LLY1.11, parsing AVI Subpicture File while playback the non-same AVI file
                // Notice: current code assume CHAR_SP_ParserSPFile will be done before AVI file parsing. Otherwise,
                // (1) Index table will be destroyed since INFOFILTER_DumpSector() using same DRAM of index table
                // (2) SP related setting will be wrong since it will be set within UTL_Read_PreScan_Info(PRESCAN_AVI_INFO)
                if(!__bSameItem && __bAttrPlayNew==ATTR_AVI)
                {
                    CHAR_SP_ParseSPFile();
                    printf("Parser SP File\n");
                }
#endif

                // LLY1.20, enable Data Disc motion state as prescan mode to let it can go _MM_MotionTrigger()
                // Notice: don't use __bAttrPlay = ATTR_PRESCAN_INFO method
                //         Otherwise, we can't integrate SP file parsing into pre-scan stage.
                __bMotionState = MOTION_STATE_PRESCAN;

#if 0

                // LLY1.02, set playing mode attribute as prescan CDROM motion information
                __bAttrPlay=ATTR_PRESCAN_INFO;
#endif  // #if 0

                return;
            }
        }

        UTL_PlayItem (__wPlayItem, 0);




    }
}

//  *********************************************************************
//  Function    :   LINEAR_Number
//  Description :
//  Arguments   :   bNumber     : The
//  Return      :   TRUE, number is valid, and perform action
//              :   FALSE, number is invalid or out of range
//  Change      :
//  Side Effect :
//  *********************************************************************