vrshoot
diff libs/libjpeg/jinclude.h @ 0:b2f14e535253
initial commit
author | John Tsiombikas <nuclear@member.fsf.org> |
---|---|
date | Sat, 01 Feb 2014 19:58:19 +0200 |
parents | |
children |
line diff
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/libs/libjpeg/jinclude.h Sat Feb 01 19:58:19 2014 +0200 1.3 @@ -0,0 +1,91 @@ 1.4 +/* 1.5 + * jinclude.h 1.6 + * 1.7 + * Copyright (C) 1991-1994, Thomas G. Lane. 1.8 + * This file is part of the Independent JPEG Group's software. 1.9 + * For conditions of distribution and use, see the accompanying README file. 1.10 + * 1.11 + * This file exists to provide a single place to fix any problems with 1.12 + * including the wrong system include files. (Common problems are taken 1.13 + * care of by the standard jconfig symbols, but on really weird systems 1.14 + * you may have to edit this file.) 1.15 + * 1.16 + * NOTE: this file is NOT intended to be included by applications using the 1.17 + * JPEG library. Most applications need only include jpeglib.h. 1.18 + */ 1.19 + 1.20 + 1.21 +/* Include auto-config file to find out which system include files we need. */ 1.22 + 1.23 +#include "jconfig.h" /* auto configuration options */ 1.24 +#define JCONFIG_INCLUDED /* so that jpeglib.h doesn't do it again */ 1.25 + 1.26 +/* 1.27 + * We need the NULL macro and size_t typedef. 1.28 + * On an ANSI-conforming system it is sufficient to include <stddef.h>. 1.29 + * Otherwise, we get them from <stdlib.h> or <stdio.h>; we may have to 1.30 + * pull in <sys/types.h> as well. 1.31 + * Note that the core JPEG library does not require <stdio.h>; 1.32 + * only the default error handler and data source/destination modules do. 1.33 + * But we must pull it in because of the references to FILE in jpeglib.h. 1.34 + * You can remove those references if you want to compile without <stdio.h>. 1.35 + */ 1.36 + 1.37 +#ifdef HAVE_STDDEF_H 1.38 +#include <stddef.h> 1.39 +#endif 1.40 + 1.41 +#ifdef HAVE_STDLIB_H 1.42 +#include <stdlib.h> 1.43 +#endif 1.44 + 1.45 +#ifdef NEED_SYS_TYPES_H 1.46 +#include <sys/types.h> 1.47 +#endif 1.48 + 1.49 +#include <stdio.h> 1.50 + 1.51 +/* 1.52 + * We need memory copying and zeroing functions, plus strncpy(). 1.53 + * ANSI and System V implementations declare these in <string.h>. 1.54 + * BSD doesn't have the mem() functions, but it does have bcopy()/bzero(). 1.55 + * Some systems may declare memset and memcpy in <memory.h>. 1.56 + * 1.57 + * NOTE: we assume the size parameters to these functions are of type size_t. 1.58 + * Change the casts in these macros if not! 1.59 + */ 1.60 + 1.61 +#ifdef NEED_BSD_STRINGS 1.62 + 1.63 +#include <strings.h> 1.64 +#define MEMZERO(target,size) bzero((void *)(target), (size_t)(size)) 1.65 +#define MEMCOPY(dest,src,size) bcopy((const void *)(src), (void *)(dest), (size_t)(size)) 1.66 + 1.67 +#else /* not BSD, assume ANSI/SysV string lib */ 1.68 + 1.69 +#include <string.h> 1.70 +#define MEMZERO(target,size) memset((void *)(target), 0, (size_t)(size)) 1.71 +#define MEMCOPY(dest,src,size) memcpy((void *)(dest), (const void *)(src), (size_t)(size)) 1.72 + 1.73 +#endif 1.74 + 1.75 +/* 1.76 + * In ANSI C, and indeed any rational implementation, size_t is also the 1.77 + * type returned by sizeof(). However, it seems there are some irrational 1.78 + * implementations out there, in which sizeof() returns an int even though 1.79 + * size_t is defined as long or unsigned long. To ensure consistent results 1.80 + * we always use this SIZEOF() macro in place of using sizeof() directly. 1.81 + */ 1.82 + 1.83 +#define SIZEOF(object) ((size_t) sizeof(object)) 1.84 + 1.85 +/* 1.86 + * The modules that use fread() and fwrite() always invoke them through 1.87 + * these macros. On some systems you may need to twiddle the argument casts. 1.88 + * CAUTION: argument order is different from underlying functions! 1.89 + */ 1.90 + 1.91 +#define JFREAD(file,buf,sizeofbuf) \ 1.92 + ((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) 1.93 +#define JFWRITE(file,buf,sizeofbuf) \ 1.94 + ((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))