#if !defined(_FX_JPEG_TURBO_) | |
/* | |
* jmemnobs.c | |
* | |
* Copyright (C) 1992-1996, 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 | |
#if defined(_FX_MANAGED_CODE_) && defined(__cplusplus) | |
extern "C" { | |
#endif | |
void* FXMEM_DefaultAlloc(int byte_size, int); | |
void FXMEM_DefaultFree(void* pointer, int); | |
#if defined(_FX_MANAGED_CODE_) && defined(__cplusplus) | |
} | |
#endif | |
/* | |
* 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); | |
return FXMEM_DefaultAlloc(sizeofobject, 0); | |
} | |
GLOBAL(void) | |
jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) | |
{ | |
// free(object); | |
FXMEM_DefaultFree(object, 0); | |
} | |
/* | |
* "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); | |
return FXMEM_DefaultAlloc(sizeofobject, 0); | |
} | |
GLOBAL(void) | |
jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) | |
{ | |
// free(object); | |
FXMEM_DefaultFree(object, 0); | |
} | |
/* | |
* 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 */ | |
} | |
#endif //_FX_JPEG_TURBO_ |