1#if !defined(_FX_JPEG_TURBO_)
2/*
3 * jmemnobs.c
4 *
5 * Copyright (C) 1992-1996, Thomas G. Lane.
6 * This file is part of the Independent JPEG Group's software.
7 * For conditions of distribution and use, see the accompanying README file.
8 *
9 * This file provides a really simple implementation of the system-
10 * dependent portion of the JPEG memory manager.  This implementation
11 * assumes that no backing-store files are needed: all required space
12 * can be obtained from malloc().
13 * This is very portable in the sense that it'll compile on almost anything,
14 * but you'd better have lots of main memory (or virtual memory) if you want
15 * to process big images.
16 * Note that the max_memory_to_use option is ignored by this implementation.
17 */
18
19#define JPEG_INTERNALS
20#include "jinclude.h"
21#include "jpeglib.h"
22#include "jmemsys.h"		/* import the system-dependent declarations */
23
24#ifndef HAVE_STDLIB_H		/* <stdlib.h> should declare malloc(),free() */
25extern void * malloc JPP((size_t size));
26extern void free JPP((void *ptr));
27#endif
28
29#if defined(_FX_MANAGED_CODE_) && defined(__cplusplus)
30extern "C" {
31#endif
32
33void*	FXMEM_DefaultAlloc(int byte_size, int);
34void	FXMEM_DefaultFree(void* pointer, int);
35
36#if defined(_FX_MANAGED_CODE_) && defined(__cplusplus)
37}
38#endif
39
40/*
41 * Memory allocation and freeing are controlled by the regular library
42 * routines malloc() and free().
43 */
44
45GLOBAL(void *)
46jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject)
47{
48//  return (void *) malloc(sizeofobject);
49	return FXMEM_DefaultAlloc(sizeofobject, 0);
50}
51
52GLOBAL(void)
53jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject)
54{
55//  free(object);
56	FXMEM_DefaultFree(object, 0);
57}
58
59
60/*
61 * "Large" objects are treated the same as "small" ones.
62 * NB: although we include FAR keywords in the routine declarations,
63 * this file won't actually work in 80x86 small/medium model; at least,
64 * you probably won't be able to process useful-size images in only 64KB.
65 */
66
67GLOBAL(void FAR *)
68jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject)
69{
70//  return (void FAR *) malloc(sizeofobject);
71	return FXMEM_DefaultAlloc(sizeofobject, 0);
72}
73
74GLOBAL(void)
75jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject)
76{
77//  free(object);
78	FXMEM_DefaultFree(object, 0);
79}
80
81
82/*
83 * This routine computes the total memory space available for allocation.
84 * Here we always say, "we got all you want bud!"
85 */
86
87GLOBAL(long)
88jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed,
89		    long max_bytes_needed, long already_allocated)
90{
91  return max_bytes_needed;
92}
93
94
95/*
96 * Backing store (temporary file) management.
97 * Since jpeg_mem_available always promised the moon,
98 * this should never be called and we can just error out.
99 */
100
101GLOBAL(void)
102jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info,
103			 long total_bytes_needed)
104{
105  ERREXIT(cinfo, JERR_NO_BACKING_STORE);
106}
107
108
109/*
110 * These routines take care of any system-dependent initialization and
111 * cleanup required.  Here, there isn't any.
112 */
113
114GLOBAL(long)
115jpeg_mem_init (j_common_ptr cinfo)
116{
117  return 0;			/* just set max_memory_to_use to 0 */
118}
119
120GLOBAL(void)
121jpeg_mem_term (j_common_ptr cinfo)
122{
123  /* no work */
124}
125
126#endif //_FX_JPEG_TURBO_
127