| Index: third_party/libjpeg_turbo/jmemnobs.c
|
| ===================================================================
|
| --- third_party/libjpeg_turbo/jmemnobs.c (revision 0)
|
| +++ third_party/libjpeg_turbo/jmemnobs.c (revision 0)
|
| @@ -0,0 +1,109 @@
|
| +/*
|
| + * 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
|
| +
|
| +
|
| +/*
|
| + * 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(size_t)
|
| +jpeg_mem_available (j_common_ptr cinfo, size_t min_bytes_needed,
|
| + size_t max_bytes_needed, size_t 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 */
|
| +}
|
|
|