gui.c

这个是boot gui的程序

/*
 *  Start of Zoran Standard Header
 *  Copyright (c) 2005 Zoran Corporation
 *  
 *  
 *  All rights reserved.  Proprietary and confidential.
 *  
 *  DESCRIPTION for gui.c
 *      Graphical User Interface
 *  
 *  NEW HISTORY COMMENT (description must be followed by a blank line)
 *  <Enter change description here>

 *  ===== HISTORY of changes in //depot/imgeng/sw/se_gw/gui/gui.c
 *  
 *  7/Dec/05 #5  dstrauss  Call GPMinit()
 *   5/Dec/05 #4  dstrauss  Removed VOPU test code.
 *   2/Dec/05 #3  dstrauss  Split gui loop off to a separate file.
 *   1/Dec/05 #2  dstrauss  Create GUITask.  Moved splashlogo to a 
 *                          separate file.
 *  29/Nov/05 #1  dstrauss  Created.
 *  
 *  
 *  End of Zoran Standard Header
 */
#include "standard.h"

#include "ts.h"
#include "vopu.h"
#include "ledif.h"              /* low-level LED interface */
#include "kbdif.h"
#include "hwaccess.h"
#include "uitypes.h"
#include "uigdi.h"
#include "guiloop.h"
#include "guiproperties.h"      /* GPMinit() */

/* GUI task stack size (can be overridden in sys.h) */
#ifndef GUI_STACK_SIZE
#define GUI_STACK_SIZE (1024 * 12)
#endif

/* GUI task priority (can be overridden in sys.h) */
#ifndef GUI_TASK_PRIORITY
#define GUI_TASK_PRIORITY STATUS_LO_PRIORITY
#endif

static Uint32   GUITaskStack[GUI_STACK_SIZE/sizeof(Uint32)];
static tsTaskID GUITaskid = INVALIDTASK;

static Sint32 GUITask(void *argv)
{
  hwAccessInit();
  LEDIFinit();                  /* init the LED interface */
  KBDIFinit();                  /* init the keyboard interface */

  VOPUInit();                   /* init the VOPU */
  GDIinit();                    /* init the GDI subsystem */
  GPMinit();                    /* init the GUI properties manager */

  GUITaskloop();                /* never returns */

  return 0;
}


int FPprolog()
{
  /* Create the front panel/gui task */
  GUITaskid = TASKCREATE(GUITask,
                         GUI_STACK_SIZE,
                         GUITaskStack,
                         NULLDATA,
                         GUI_TASK_PRIORITY,
                         NULLARG,
                         "GUITask"); 

  if( GUITaskid == INVALIDTASK ) {
    /* Failed to create GUI task */
    return (-1);
  }

  return (0);
}