static void hb_gt_cgi_termOut( PHB_GTCGI pGTCGI, const BYTE * pStr, ULONG ulLen )
{
   hb_fsWriteLarge( pGTCGI->hStdout, pStr, ulLen );
}

static void hb_gt_cgi_newLine( PHB_GTCGI pGTCGI )
{
   hb_gt_cgi_termOut( pGTCGI, ( BYTE * ) pGTCGI->szCrLf, pGTCGI->ulCrLf );
}

static void hb_gt_cgi_Init( PHB_GT pGT, HB_FHANDLE hFilenoStdin, HB_FHANDLE hFilenoStdout, HB_FHANDLE hFilenoStderr )
{
   PHB_GTCGI pGTCGI;

   HB_TRACE( HB_TR_DEBUG, ( "hb_gt_cgi_Init(%p,%p,%p,%p)", pGT, hFilenoStdin, hFilenoStdout, hFilenoStderr ) );

   pGTCGI = ( PHB_GTCGI ) hb_xgrab( sizeof( HB_GTCGI ) );
   memset( pGTCGI, 0, sizeof( HB_GTCGI ) );
   HB_GTLOCAL( pGT ) = pGTCGI;

   pGTCGI->hStdout = hFilenoStdout;

   pGTCGI->szCrLf = hb_strdup( hb_conNewLine() );
   pGTCGI->ulCrLf = strlen( pGTCGI->szCrLf );

   hb_fsSetDevMode( pGTCGI->hStdout, FD_BINARY );

   HB_GTSUPER_INIT( pGT, hFilenoStdin, hFilenoStdout, hFilenoStderr );
   HB_GTSELF_SETFLAG( pGT, HB_GTI_STDOUTCON, TRUE );
}

static void hb_gt_cgi_Exit( PHB_GT pGT )
{
   PHB_GTCGI pGTCGI;

   HB_TRACE(HB_TR_DEBUG, ("hb_gt_cgi_Exit(%p)", pGT));

   HB_GTSELF_REFRESH( pGT );

   pGTCGI = HB_GTCGI_GET( pGT );

   HB_GTSUPER_EXIT( pGT );

   if( pGTCGI )
   {
      /* update cursor position on exit */
      if( pGTCGI->iLastCol > 0 )
         hb_gt_cgi_newLine( pGTCGI );

      if( pGTCGI->iLineBufSize > 0 )
         hb_xfree( pGTCGI->sLineBuf );
      if( pGTCGI->szCrLf )
         hb_xfree( pGTCGI->szCrLf );
      hb_xfree( pGTCGI );
   }
}

static int hb_gt_cgi_ReadKey( PHB_GT pGT, int iEventMask )
{
   HB_TRACE(HB_TR_DEBUG, ("hb_gt_cgi_ReadKey(%p,%d)", pGT, iEventMask));

   HB_SYMBOL_UNUSED( pGT );
   HB_SYMBOL_UNUSED( iEventMask );

   return 13;
}

static BOOL hb_gt_cgi_IsColor( PHB_GT pGT )
{
   HB_TRACE(HB_TR_DEBUG, ("hb_gt_cgi_IsColor(%p)", pGT));

   HB_SYMBOL_UNUSED( pGT );

   return FALSE;
}

static void hb_gt_cgi_Bell( PHB_GT pGT )
{
   static const BYTE s_szBell[] = { HB_CHAR_BEL, 0 };
   PHB_GTCGI pGTCGI;

   HB_TRACE(HB_TR_DEBUG, ("hb_gt_cgi_Bell(%p)", pGT));

   pGTCGI = HB_GTCGI_GET( pGT );

   hb_gt_cgi_termOut( pGTCGI, s_szBell, 1 );
}

static const char * hb_gt_cgi_Version( PHB_GT pGT, int iType )
{
   HB_TRACE( HB_TR_DEBUG, ( "hb_gt_cgi_Version(%p,%d)", pGT, iType ) );

   HB_SYMBOL_UNUSED( pGT );

   if( iType == 0 )
      return HB_GT_DRVNAME( HB_GT_NAME );

   return "Harbour Terminal: Raw stream console";
}

static void hb_gt_cgi_Scroll( PHB_GT pGT, int iTop, int iLeft, int iBottom, int iRight,
                              BYTE bColor, BYTE bChar, int iRows, int iCols )
{
   int iHeight, iWidth;

   HB_TRACE( HB_TR_DEBUG, ( "hb_gt_cgi_Scroll(%p,%d,%d,%d,%d,%d,%d,%d,%d)", pGT, iTop, iLeft, iBottom, iRight, bColor, bChar, iRows, iCols ) );

   /* Provide some basic scroll support for full screen */
   HB_GTSELF_GETSIZE( pGT, &iHeight, &iWidth );
   if( iCols == 0 && iRows > 0 &&
       iTop == 0 && iLeft == 0 &&
       iBottom >= iHeight - 1 && iRight >= iWidth - 1 )
   {
      PHB_GTCGI pGTCGI = HB_GTCGI_GET( pGT );

      /* scroll up the internal screen buffer */
      HB_GTSELF_SCROLLUP( pGT, iRows, bColor, bChar );
      /* update our internal row position */
      pGTCGI->iRow -= iRows;
      if( pGTCGI->iRow < 0 )
         pGTCGI->iRow = 0;
      pGTCGI->iLastCol = pGTCGI->iCol = 0;
   }
   else
      HB_GTSUPER_SCROLL( pGT, iTop, iLeft, iBottom, iRight, bColor, bChar, iRows, iCols );
}

static BOOL hb_gt_cgi_SetDispCP( PHB_GT pGT, char *pszTermCDP, char *pszHostCDP, BOOL fBox )
{
   HB_TRACE( HB_TR_DEBUG, ( "hb_gt_cgi_SetDispCP(%p,%s,%s,%d)", pGT, pszTermCDP, pszHostCDP, (int) fBox ) );

   HB_GTSUPER_SETDISPCP( pGT, pszTermCDP, pszHostCDP, fBox );

#ifndef HB_CDP_SUPPORT_OFF
   if( !pszHostCDP )
      pszHostCDP = hb_cdpID();
   if( !pszTermCDP )
      pszTermCDP = pszHostCDP;

   if( pszTermCDP && pszHostCDP )
   {
      PHB_GTCGI pGTCGI = HB_GTCGI_GET( pGT );

      pGTCGI->cdpTerm = hb_cdpFind( pszTermCDP );
      pGTCGI->cdpHost = hb_cdpFind( pszHostCDP );
      pGTCGI->fDispTrans = pGTCGI->cdpTerm && pGTCGI->cdpHost &&
                           pGTCGI->cdpTerm != pGTCGI->cdpHost;
      return TRUE;
   }
#endif

   return FALSE;
}

static void hb_gt_cgi_WriteCon( PHB_GT pGT, BYTE * pText, ULONG ulLength )
{
   BYTE * buffer = NULL;
   PHB_GTCGI pGTCGI = HB_GTCGI_GET( pGT );

#ifndef HB_CDP_SUPPORT_OFF
   if( pGTCGI->fDispTrans )
   {
      buffer = ( BYTE * ) hb_xgrab( ulLength );
      memcpy( buffer, pText, ulLength );
      hb_cdpnTranslate( ( char * ) buffer, pGTCGI->cdpHost, pGTCGI->cdpTerm, ulLength );
      pText = buffer;
   }
#endif

   hb_gt_cgi_termOut( pGTCGI, pText, ulLength );
   while( ulLength-- )
   {
      switch( *pText++ )
      {
         case HB_CHAR_BEL:
            break;

         case HB_CHAR_BS:
            if( pGTCGI->iCol )
               pGTCGI->iCol--;
            break;

         case HB_CHAR_LF:
            pGTCGI->iRow++;
            break;

         case HB_CHAR_CR:
            pGTCGI->iCol = 0;
            break;

         default:
            ++pGTCGI->iCol;
      }
   }
   HB_GTSUPER_SETPOS( pGT, pGTCGI->iRow, pGTCGI->iCol );

   if( buffer )
      hb_xfree( buffer );
}

static void hb_gt_cgi_WriteAt( PHB_GT pGT, int iRow, int iCol, BYTE * pText, ULONG ulLength )
{
   int iLineFeed = 0, iSpace = 0;
   PHB_GTCGI pGTCGI = HB_GTCGI_GET( pGT );

   if( pGTCGI->iRow != iRow )
   {
      iLineFeed = pGTCGI->iRow < iRow ? iRow - pGTCGI->iRow : 1;
   }
   else if( pGTCGI->iCol > iCol )
   {
      iLineFeed = 1;
      iSpace = iCol;
   }
   else if( pGTCGI->iCol < iCol )
   {
      iSpace = iCol - pGTCGI->iCol;
   }

   if( iSpace > 0 )
   {
      BYTE * buffer = ( BYTE * ) hb_xgrab( iSpace );
      memset( buffer, ' ', iSpace );
      hb_gt_cgi_termOut( pGTCGI, buffer, iSpace );
      hb_xfree( buffer );
   }
   while( --iLineFeed >= 0 )
      hb_gt_cgi_newLine( pGTCGI );
   pGTCGI->iRow = iRow;
   pGTCGI->iCol = iCol;

   hb_gt_cgi_WriteCon( pGT, pText, ulLength );
}

static void hb_gt_cgi_Redraw( PHB_GT pGT, int iRow, int iCol, int iSize )
{
   BYTE bColor, bAttr;
   USHORT usChar;
   int iLineFeed, iHeight, iWidth, iLen;
   PHB_GTCGI pGTCGI;

   HB_TRACE( HB_TR_DEBUG, ( "hb_gt_cgi_Redraw(%p,%d,%d,%d)", pGT, iRow, iCol, iSize ) );

   pGTCGI = HB_GTCGI_GET( pGT );
   HB_GTSELF_GETSIZE( pGT, &iHeight, &iWidth );
   iLineFeed = iLen = 0;

   if( pGTCGI->iRow != iRow )
   {
      iLineFeed = pGTCGI->iRow < iRow ? iRow - pGTCGI->iRow : 1;
      pGTCGI->iLastCol = pGTCGI->iCol = iCol = 0;
      iSize = iWidth;
   }
   else if( pGTCGI->iCol < iCol )
   {
      iSize += iCol - pGTCGI->iCol;
      iCol = pGTCGI->iCol;
   }
   else if( pGTCGI->iCol > iCol )
   {
      iLineFeed = 1;
      iCol = pGTCGI->iCol = pGTCGI->iLastCol = 0;
      iSize = iWidth;
   }

   while( iSize > 0 && iCol + iSize > pGTCGI->iLastCol &&
          HB_GTSELF_GETSCRCHAR( pGT, iRow, iCol + iSize - 1, &bColor, &bAttr, &usChar ) )
   {
      if( usChar != ' ' )
         break;
      --iSize;
   }

   if( iSize > 0 )
   {
      while( --iLineFeed >= 0 )
         hb_gt_cgi_newLine( pGTCGI );
      pGTCGI->iRow = iRow;

      while( iLen < iSize )
      {
         if( !HB_GTSELF_GETSCRCHAR( pGT, iRow, iCol, &bColor, &bAttr, &usChar ) )
            break;
         pGTCGI->sLineBuf[ iLen++ ] = ( BYTE ) usChar;
         ++iCol;
      }
      if( iLen )
      {
#ifndef HB_CDP_SUPPORT_OFF
         if( pGTCGI->fDispTrans )
            hb_cdpnTranslate( ( char * ) pGTCGI->sLineBuf, pGTCGI->cdpHost, pGTCGI->cdpTerm, iLen );
#endif
         hb_gt_cgi_termOut( pGTCGI, pGTCGI->sLineBuf, iLen );
         pGTCGI->iCol = iCol;
         if( pGTCGI->iCol > pGTCGI->iLastCol )
            pGTCGI->iLastCol = pGTCGI->iCol;
      }
   }
}

static void hb_gt_cgi_Refresh( PHB_GT pGT )
{
   int iHeight, iWidth;
   PHB_GTCGI pGTCGI;

   HB_TRACE( HB_TR_DEBUG, ( "hb_gt_cgi_Refresh(%p)", pGT ) );

   pGTCGI = HB_GTCGI_GET( pGT );
   HB_GTSELF_GETSIZE( pGT, &iHeight, &iWidth );
   if( pGTCGI->iLineBufSize == 0 )
   {
      pGTCGI->sLineBuf = ( BYTE * ) hb_xgrab( iWidth );
      pGTCGI->iLineBufSize = iWidth;
   }
   else if( pGTCGI->iLineBufSize < iWidth )
   {
      pGTCGI->sLineBuf = ( BYTE * ) hb_xrealloc( pGTCGI->sLineBuf, iWidth );
      pGTCGI->iLineBufSize = iWidth;
   }
   HB_GTSUPER_REFRESH( pGT );
}

static BOOL hb_gt_FuncInit( PHB_GT_FUNCS pFuncTable )
{
   HB_TRACE(HB_TR_DEBUG, ("hb_gt_FuncInit(%p)", pFuncTable));

   pFuncTable->Init                       = hb_gt_cgi_Init;
   pFuncTable->Exit                       = hb_gt_cgi_Exit;
   pFuncTable->IsColor                    = hb_gt_cgi_IsColor;
#ifdef HB_GT_CGI_RAWOUTPUT
   pFuncTable->WriteCon                   = hb_gt_cgi_WriteCon;
   pFuncTable->Write                      = hb_gt_cgi_WriteCon;
   pFuncTable->WriteAt                    = hb_gt_cgi_WriteAt;
#else
   pFuncTable->Redraw                     = hb_gt_cgi_Redraw;
   pFuncTable->Refresh                    = hb_gt_cgi_Refresh;
#endif
   pFuncTable->Scroll                     = hb_gt_cgi_Scroll;
   pFuncTable->Version                    = hb_gt_cgi_Version;
   pFuncTable->SetDispCP                  = hb_gt_cgi_SetDispCP;
   pFuncTable->Bell                       = hb_gt_cgi_Bell;

   pFuncTable->ReadKey                    = hb_gt_cgi_ReadKey;

   return TRUE;
}

/* ********************************************************************** */

static const HB_GT_INIT gtInit = { HB_GT_DRVNAME( HB_GT_NAME ),
                                   hb_gt_FuncInit,
                                   HB_GTSUPER,
                                   HB_GTID_PTR };

HB_GT_ANNOUNCE( HB_GT_NAME )

HB_CALL_ON_STARTUP_BEGIN( _hb_startup_gt_Init_ )
   hb_gtRegister( >Init );
HB_CALL_ON_STARTUP_END( _hb_startup_gt_Init_ )

#if defined( HB_PRAGMA_STARTUP )
   #pragma startup _hb_startup_gt_Init_
#elif defined( HB_MSC_STARTUP )
   #if defined( HB_OS_WIN_64 )
      #pragma section( HB_MSC_START_SEGMENT, long, read )
   #endif
   #pragma data_seg( HB_MSC_START_SEGMENT )
   static HB_$INITSYM hb_vm_auto__hb_startup_gt_Init_ = _hb_startup_gt_Init_;