appshell.c

可用于TM1300/PNX1300系列DSP（主要用于视频处理）压缩库即应用例子。

/*
 * Copyright (c) 1995,2000 TriMedia Technologies Inc.      
 *
 * +------------------------------------------------------------------+
 * | This software is furnished under a license and may only be used  |
 * | and copied in accordance with the terms and conditions of  such  |
 * | a license and with the inclusion of this copyright notice. This  |
 * | software or any other copies of this software may not be provided|
 * | or otherwise made available to any other person.  The ownership  |
 * | and title of this software is not transferred.                   |
 * |                                                                  |
 * | The information in this software is subject  to change without   |
 * | any  prior notice and should not be construed as a commitment by |
 * | TriMedia Technologies.                                           |
 * |                                                                  |
 * | this code and information is provided "as is" without any        |
 * | warranty of any kind, either expressed or implied, including but |
 * | not limited to the implied warranties of merchantability and/or  |
 * | fitness for any particular purpose.                              |
 * +------------------------------------------------------------------+
 *
 *  Module name              : compappshell.c    1.1
 *
 *  Last update              : 21:39:57 - 98/04/27
 *
 *  Description              : 
 *
 */

/*----------------------------includes----------------------------------------*/

#include <stdio.h>
#include <tmlib/tmtypes.h>
#include <tmlib/DynamicLoader.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <stdio.h>
#include <dirent.h>
#include "unistd.h"
#include "errno.h"
#include <tm1/tmLibdevErr.h>

/*------------------------ Application Shell ---------------------------------*/

extern Int  _rts_trace_dynldr;

typedef Int(*Main_Function) ();

#define APP_DEMO          "/flash/application.app"

 
static void load_and_run( String app_to_be_run )
{
   DynLoad_Status 		  load_status;
   DynLoad_Code_Segment_Handle   module;
 
   _rts_trace_dynldr = True;
   load_status      = DynLoad_load_application(app_to_be_run, &module);
	
   if (load_status == DynLoad_OK) {
      printf("*** loading of `%s` succeeded\n", app_to_be_run);
      printf("status= %d\n", ((Main_Function) module->start) (0,0) );
   } else {
      String error_msg= Null;
	
      switch (load_status) {
         case DynLoad_UnknownObjectVersion  : 
         case DynLoad_WrongChecksum         :  
         case DynLoad_InconsistentObject    : error_msg= "inconsistent object";       break;
         case DynLoad_WrongEndian           : error_msg= "wrong endian";              break;
         case DynLoad_NotAnApp              : error_msg= "not an application object"; break;
         case DynLoad_FileNotFound          : error_msg= "file not found";            break;
         case DynLoad_InsufficientMemory    : error_msg= "memory overflow";           break;
      }
	
      printf("*** loading of `%s` failed with status %d (%s)\n", 
            app_to_be_run, load_status, 
            error_msg);
   }
}

int main()
{
   printf("------- ---------APP DEMO  STARTED -------------\n");
   
   load_and_run(APP_DEMO);

   printf("-------- --------APP DEMO TERMINATED--------\n");

   exit(0);
}