//  * jmemnobs.c
//  *
//  * Copyright (C) 1992-1994, Thomas G. Lane.
//  * This file is part of the Independent JPEG Group's software.
//  * For conditions of distribution and use, see the accompanying README file.
//  *
//  * This file provides a really simple implementation of the system-
//  * dependent portion of the JPEG memory manager.  This implementation
//  * assumes that no backing-store files are needed: all required space
//  * can be obtained from malloc().
//  * This is very portable in the sense that it'll compile on almost anything,
//  * but you'd better have lots of main memory (or virtual memory) if you want
//  * to process big images.
//  * Note that the max_memory_to_use option is ignored by this implementation.


#define JPEG_INTERNALS
#include "JINCLUDE.h"
#include "JPEGLIB.h"
#include "JMEMSYS.h"		// import the system-dependent declarations 


//#ifndef HAVE_STDLIB_H		// <stdlib.h> should declare malloc(),free() 
//extern void * malloc JPP((size_t size));
//extern void free JPP((void *ptr));
//#endif


void *jpgHightPointer = NULL;
#define jpgHightPointer_BASE (1024*1024*100)

//  * Memory allocation and freeing are controlled by the regular library
//  * routines malloc() and free().

GLOBAL void *
jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject)
{
	return (void *) malloc(sizeofobject);
}

GLOBAL void
jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject)
{
  free(object);
}


//  * "Large" objects are treated the same as "small" ones.
//  * NB: although we include FAR keywords in the routine declarations,
//  * this file won't actually work in 80x86 small/medium model; at least,
//  * you probably won't be able to process useful-size images in only 64KB.

GLOBAL void FAR *
jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject)
{
	return (void FAR *) malloc(sizeofobject);
}

GLOBAL void
jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject)
{
    free(object);	
}


//  * This routine computes the total memory space available for allocation.
//  * Here we always say, "we got all you want bud!"

GLOBAL LONG
jpeg_mem_available (j_common_ptr cinfo, LONG min_bytes_needed,
		    LONG max_bytes_needed, LONG already_allocated)
{
  return max_bytes_needed;
}


//  * Backing store (temporary file) management.
//  * Since jpeg_mem_available always promised the moon,
//  * this should never be called and we can just error out.

GLOBAL void
jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info,
			 LONG total_bytes_needed)
{
  ERREXIT(cinfo, JERR_NO_BACKING_STORE);
}


//  * These routines take care of any system-dependent initialization and
//  * cleanup required.  Here, there isn't any.

GLOBAL LONG
jpeg_mem_init (j_common_ptr cinfo)
{
  return 0;			// just set max_memory_to_use to 0 
}

GLOBAL void
jpeg_mem_term (j_common_ptr cinfo)
{
  // no work 
}