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/*

/////////////////////////////////////////////////////////////////////////////

// $Header: /home/marcus/revision_ctrl_test/oc_cvs/cvs/or1k/ecos-2.0/packages/services/gfx/mw/v2_0/src/drivers/mwselect_rtems.c,v 1.1.1.1 2004-02-14 13:35:30 phoenix Exp $

//

// Copyright (c) 2000 - Rosimildo da Silva

//

// MODULE DESCRIPTION:

// This module implements the "GsSelect()" function for MicroWindows.

//

// MODIFICATION/HISTORY:

//

// $Log: not supported by cvs2svn $

// Revision 1.1.1.1  2001/06/21 06:32:41  greg

// Microwindows pre8 with patches

//

// Revision 1.1.1.1  2001/06/05 03:44:01  root

// First import of 5/5/2001 Microwindows to CVS

//

//

/////////////////////////////////////////////////////////////////////////////

*/

#include <stdio.h>

#include <errno.h>

#include <rtems/mw_uid.h>

#include "device.h"

#include "windef.h"

extern MWBOOL MwCheckMouseEvent();

extern MWBOOL MwCheckKeyboardEvent();

#if ANIMATEPALETTE

static int fade = 0;

#endif

extern struct MW_UID_MESSAGE m_kbd;

extern struct MW_UID_MESSAGE m_mou;

extern HWND  dragwp;     /* window user is dragging*/

/*

 * "Select() routine called by the Microwindows framework to receive events

 * from the input devices.

 */

void MwSelect(void)

{

  struct MW_UID_MESSAGE m;

  int rc;

  unsigned int timeout = 0;

  /* perform pre-select duties, if any*/

  if(scrdev.PreSelect)

  {

     scrdev.PreSelect(&scrdev);

  }

        /* Set up the timeout for the main select().  If

         * the mouse is captured we're probably moving a window,

         * so poll quickly to allow other windows to repaint while

         * checking for more event input.

         */

        if( !dragwp )

   {

                timeout = MwGetNextTimeoutValue();      /* returns ms*/

#if ANIMATEPALETTE

                if(fade < 100)

                        timeout = 40;

                else

#endif

                if(timeout == 0)

                        timeout = 10;   /* 10ms required for vt fb switch*/

        }

  /* let's make sure that the type is invalid */

  m.type = MV_UID_INVALID;

  /* wait up to 100 milisecons for events */

  rc = uid_read_message( &m, timeout );

  /* return if timed-out or something went wrong */

  if( rc < 0 )

  {

     if( errno != ETIMEDOUT )

        EPRINTF( " rc= %d, errno=%d\n", rc, errno );

     else

     {

#if ANIMATEPALETTE

       if(fade <= 100) {

                        setfadelevel( &scrdev, fade );

                           fade += 5;

                 }

#endif

                MwHandleTimers();

     }

     return;

  }

  /* let's pass the event up to microwindows */

  switch( m.type )

  {

    /* Mouse or Touch Screen event */

    case MV_UID_REL_POS:

    case MV_UID_ABS_POS:

        m_mou = m;

        while( MwCheckMouseEvent() )

                         continue;

        break;

    /* KBD event */

    case MV_UID_KBD:

        m_kbd = m;

        MwCheckKeyboardEvent();

        break;

    /* micro-windows does nothing with those.. */

    case MV_UID_TIMER:

    case MV_UID_INVALID:

    default:

       ;

  }

}