source: svn/trunk/zasc/app/DST_CCTask.cpp @ 10

#include "DST_WinManager.h"
#include "DST_CommonAPI.h"
#include "DST_ChannelTune.h"
#include "DST_DB_Engine.h"
#include "DST_DB.h"

static bool bCCEngineReady = false;

static bool bAutoDetectUnicode = false; // CC µ¥ÀÌÅ͸¦ ºÐ¼®ÇÏ¿© ÀÚµ¿À¸·Î ¿Ï¼ºÇüÀÎÁö À¯´ÏÄÚµåÀÎÁö ¾Ë¾Æ³½´Ù.

void DST_708_Callback(DS_U8 *bytearray,int size)
{
        if (size == 0) return;
        if (bCCEngineReady == false) return;
        // Sequence Header°¡ ¿Ã¹Ù¸¥Áö È®ÀÎÇغ»´Ù.
        if (size == -1) // Sequence Header ¿¡·¯°¡ ³­ °æ¿ì
        {
                DST_Printf("Sequence Header Error\n");
                DST_SendWindowEventWithOnlyCmd(WM_SEQ_ERROR);
                return;
        }

        if (size > 31) return;

        int nCharTotal = 0;
        int nCharLatin = 0;
        int nCharWanSung = 0;
        
        for (int i=0; i < size-2; i++)
        {
                if (bytearray[i] != 0x18) continue;
                nCharTotal++;
                if (bytearray[i+1] == 0)
                {
                        nCharLatin++;
                }
                if (bytearray[i+1] >= 0xA1 && bytearray[i+1]  <= 0xFE && bytearray[i+2] >= 0xA1 && bytearray[i+2] <= 0xFE) 
                {
                        nCharWanSung++;
                }
                i+=2;
        }
        bool isWanSung = true;
        //DST_Printf("nCharTotal = %d\n", nCharTotal);
        //DST_Printf("nCharLatin = %d\n", nCharLatin);
        //DST_Printf("nCharWanSung = %d\n", nCharWanSung);
        // ½ÇÁ¦·Î CC ¹®ÀÚ°¡ ÀÖ´Ù¸é À¸·Î ÀÎÆ÷¹è³Ê ¾ÆÀÌÄÜÀÇ Á¤¹Ðµµ¸¦ ³ôÀδÙ.
        if (nCharTotal > 0)
        {
                //T();
                DST_g_CC_DataReceiveTick = DST_OS_GetTickCount();
        }
        if (DST_EEPROM_GetCC() == 0) return; // ÀÎÆ÷¹è³Ê CC ¾ÆÀÌÄÜ Á¤º¸¸¦ ¾÷µ¥ÀÌÆ® ÇÏ°í CC ²¨Á®ÀÖÀ¸¸é ¸¶¹«¸®
                        
        int nCount = nCharTotal - nCharLatin;
        if (nCount < 0) nCount = 0;
        if (nCount > 0)
        {
                if ((nCharWanSung * 100 /  nCount) < 50) isWanSung = false;
        }
        //DST_Printf("isWanSung = %d\n", isWanSung);    
        
        bAutoDetectUnicode = !isWanSung; // À¯´ÏÄÚµå ¿©ºÎ ÀÚµ¿°ËÃâ

        SWinEventMsg msg;
        msg.cmd = WM_CS1;
        msg.data[0] = size;
        memcpy(&msg.data[1], bytearray, size);
        DST_SendWindowEvent(msg);
}

typedef void (*CC708_CallBack)(DS_U8 *bytearray,int size);
extern "C" void SetCC708_CallBack(CC708_CallBack callback);


static bool DST_CCAvailable()
{
        if (DST_g_SignalState != SM_GOOD_SIGNAL) return false; // ½ÅÈ£ »óÅ°¡ ÁÁÀº °æ¿ì¿¡¸¸ CC¸¦ º¸¿©ÁÖµµ·Ï ÇÔ
//      if (DST_g_SleepState != 0) return false; // normal »óÅ°¡ ¾Æ´Ï¸é CC ´Ý´Â´Ù
        if (DST_EEPROM_GetCC() == 0) return false;
        if (DST_g_LastTuneTime == 0) return false;
        if (DST_IsVideoPlay() == false) return false;
        if (DST_g_LastTuneTryTime > DST_OS_GetTickCount()) DST_g_LastTuneTryTime = DST_OS_GetTickCount();
        if (DST_OS_GetTickCount() - DST_g_LastTuneTryTime < DST_OS_GetTicksPerSecond() * 3) return false;
        for (int id = (int)WIN_NULL+1; id < (int)WIN_CAPTION; id++)
        {
                if (id == WIN_VOLUME) continue;
                if (id == WIN_VOLUME_MUTE) continue;
                if (DST_GetWin((DST_WinID)id)) return false;
        }
        return true;
}
 
static void tCCManager()
{
        DST_OS_Delay(DST_OS_GetTicksPerSecond()*3); // 3ÃÊ ½¬°í ½ÃÀÛ
        bCCEngineReady = true;
        DST_CreateWin(WIN_CAPTION, WIN_NULL, 1); 
        while (1)
        {
                DST_OS_Delay(DST_OS_GetTicksPerSecond()/10);
                CWindow *pWin = DST_GetWin(WIN_CAPTION);
                if (DST_CCAvailable())
                {
                        if (pWin) continue;
                        DST_CreateWin(WIN_CAPTION, WIN_NULL, 1);
                        for (int i = 0; i < 5; i++)
                        {
                                DST_OS_Delay(DST_OS_GetTicksPerSecond()/10);// ½ÇÁ¦ À©µµ¿ì°¡ »ý¼ºµÉ¶§±îÁö ´ë±â 
                                if (DST_GetWin(WIN_CAPTION)) break;
                        }
                }
                else
                {
                        if (pWin == 0) continue;
                        DST_SendWindowEventWithOnlyCmd(WM_CC_CLOSE);
                        for (int i = 0; i < 5; i++)
                        {
                                DST_OS_Delay(DST_OS_GetTicksPerSecond()/10);// ½ÇÁ¦ À©µµ¿ì°¡ »ý¼ºµÉ¶§±îÁö ´ë±â 
                                if (DST_GetWin(WIN_CAPTION)==0) break;
                        }
                }
        }
}

void DST_CCManagerInit()
{
        static int TaskID = 0;
        if (TaskID != 0) return;
        TaskID = DST_OS_SpawnTask((void(*)(void *))tCCManager, (char*)"CCManager", APP_TASK_PRIO_CC_MGR, WIN_MGR_TASK_STACKSIZE,  0);
}

void DST_CheckCCDescription(DS_U8 /*nServiceNumber*/, bool *bKorean, bool *bWideScreen, bool *bUnicode)
{
        *bKorean = DST_g_CC_bCCKorean;
        *bWideScreen = DST_g_CC_bWideScreen;
        //*bUnicode = DST_g_CC_bUnicode; // CC µð½ºÅ©¸³ÅÍ »ç¿ë
        *bUnicode = bAutoDetectUnicode;  // ÀÚµ¿ °ËÃâ
}