// * jinclude.h // * // * Copyright (C) 1991-1994, 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 exists to provide a single place to fix any problems with // * including the wrong system include files. (Common problems are taken // * care of by the standard jconfig symbols, but on really weird systems // * you may have to edit this file.) // * // * NOTE: this file is NOT intended to be included by applications using the // * JPEG library. Most applications need only include jpeglib.h. // Include auto-config file to find out which system include files we need. #include "JCONFIG.h" // auto configuration options #define LONG int #define DOUBLE float #define BYTE unsigned char #define JCONFIG_INCLUDED // so that jpeglib.h doesn't do it again // * We need the NULL macro and size_t typedef. // * On an ANSI-conforming system it is sufficient to include . // * Otherwise, we get them from or ; we may have to // * pull in as well. // * Note that the core JPEG library does not require ; // * only the default error handler and data source/destination modules do. // * But we must pull it in because of the references to FILE in jpeglib.h. // * You can remove those references if you want to compile without . #ifdef HAVE_STDDEF_H #include #endif #ifdef HAVE_STDLIB_H #include #endif #ifdef NEED_SYS_TYPES_H #include #endif #include template inline T BAS_Max(T a,T b) { return (a > b ? a : b); } template inline T BAS_Min(T a,T b) { return (a < b ? a : b); } // * We need memory copying and zeroing functions, plus strncpy(). // * ANSI and System V implementations declare these in . // * BSD doesn't have the mem() functions, but it does have bcopy()/bzero(). // * Some systems may declare memset and memcpy in . // * // * NOTE: we assume the size parameters to these functions are of type size_t. // * Change the casts in these macros if not! #ifdef NEED_BSD_STRINGS #include #define MEMZERO(target,size) bzero((void *)(target), (size_t)(size)) #define MEMCOPY(dest,src,size) bcopy((const void *)(src), (void *)(dest), (size_t)(size)) #else // not BSD, assume ANSI/SysV string lib #include #ifdef PSX2_TARGET extern void *ps2memset(char *dst, unsigned char c, int size); extern void *ps2memcpy(char *dst, char*src, int size); #define L_memcpy ps2memcpy #define L_memset ps2memset #else #define L_memcpy memcpy #define L_memset memset #endif #define MEMZERO(target,size) L_memset((void *)(target), 0, (size_t)(size)) #define MEMCOPY(dest,src,size) L_memcpy((char *)(dest), (char *)(src), (size_t)(size)) #endif // * In ANSI C, and indeed any rational implementation, size_t is also the // * type returned by sizeof(). However, it seems there are some irrational // * implementations out there, in which sizeof() returns an int even though // * size_t is defined as long or unsigned long. To ensure consistent results // * we always use this SIZEOF() macro in place of using sizeof() directly. #define SIZEOF(object) ((size_t) sizeof(object)) // * The modules that use fread() and fwrite() always invoke them through // * these macros. On some systems you may need to twiddle the argument casts. // * CAUTION: argument order is different from underlying functions! // #define JFREAD(file,buf,sizeofbuf) \ // ((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) // #define JFWRITE(file,buf,sizeofbuf) \ // ((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) #define JFWRITE(file,buf,sizeofbuf) \ ((size_t) L_memcpy((void *) file, (void *) buf , sizeofbuf))