text: /*
   * 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 ri.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 */
  
  /*
   * Memory allocation and ri.Freeing are controlled by the regular library
   * routines ri.Malloc() and ri.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 */
  }
  