+++ /dev/null
-/*
-** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU Lesser General Public License as published by
-** the Free Software Foundation; either version 2.1 of the License, or
-** (at your option) any later version.
-**
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-** GNU Lesser General Public License for more details.
-**
-** You should have received a copy of the GNU Lesser General Public License
-** along with this program; if not, write to the Free Software
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*/
-
-#ifndef SFENDIAN_INCLUDED
-#define SFENDIAN_INCLUDED
-
-#include "sfconfig.h"
-
-#if HAVE_STDINT_H
-#include <stdint.h>
-#elif HAVE_INTTYPES_H
-#include <inttypes.h>
-#endif
-
-#if (defined (SIZEOF_INT64_T) && (SIZEOF_INT64_T == 8))
-/* Good, we have int64_t. */
-#elif (defined (SIZEOF_LONG_LONG) && (SIZEOF_LONG_LONG == 8))
-typedef long long int64_t ;
-#elif (defined (SIZEOF_LONG) && (SIZEOF_LONG == 8))
-typedef long int64_t ;
-#elif (defined (WIN32) || defined (_WIN32))
-typedef __int64 int64_t ;
-#else
-#error "No 64 bit integer type."
-#endif
-
-#if HAVE_BYTESWAP_H
-
-#include <byteswap.h>
-
-#define ENDSWAP_SHORT(x) ((short) bswap_16 (x))
-#define ENDSWAP_INT(x) ((int) bswap_32 (x))
-
-#else
-
-#define ENDSWAP_SHORT(x) ((((x) >> 8) & 0xFF) + (((x) & 0xFF) << 8))
-#define ENDSWAP_INT(x) ((((x) >> 24) & 0xFF) + (((x) >> 8) & 0xFF00) + (((x) & 0xFF00) << 8) + (((x) & 0xFF) << 24))
-
-#endif
-
-/*
-** Many file types (ie WAV, AIFF) use sets of four consecutive bytes as a
-** marker indicating different sections of the file.
-** The following MAKE_MARKER macro allows th creation of integer constants
-** for these markers.
-*/
-
-#if (CPU_IS_LITTLE_ENDIAN == 1)
- #define MAKE_MARKER(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((d) << 24))
-#elif (CPU_IS_BIG_ENDIAN == 1)
- #define MAKE_MARKER(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
-#else
- #error "Target CPU endian-ness unknown. May need to hand edit src/sfconfig.h"
-#endif
-
-/*
-** Macros to handle reading of data of a specific endian-ness into host endian
-** shorts and ints. The single input is an unsigned char* pointer to the start
-** of the object. There are two versions of each macro as we need to deal with
-** both big and little endian CPUs.
-*/
-
-#if (CPU_IS_LITTLE_ENDIAN == 1)
- #define LES2H_SHORT(x) (x)
- #define LEI2H_INT(x) (x)
-
- #define BES2H_SHORT(x) ENDSWAP_SHORT (x)
- #define BEI2H_INT(x) ENDSWAP_INT (x)
-
- #define H2BE_SHORT(x) ENDSWAP_SHORT (x)
- #define H2BE_INT(x) ENDSWAP_INT (x)
-
-#elif (CPU_IS_BIG_ENDIAN == 1)
- #define LES2H_SHORT(x) ENDSWAP_SHORT (x)
- #define LEI2H_INT(x) ENDSWAP_INT (x)
-
- #define BES2H_SHORT(x) (x)
- #define BEI2H_INT(x) (x)
-
- #define H2LE_SHORT(x) ENDSWAP_SHORT (x)
- #define H2LE_INT(x) ENDSWAP_INT (x)
-
-#else
- #error "Target CPU endian-ness unknown. May need to hand edit src/sfconfig.h"
-#endif
-
-#define LET2H_SHORT_PTR(x) ((x) [1] + ((x) [2] << 8))
-#define LET2H_INT_PTR(x) (((x) [0] << 8) + ((x) [1] << 16) + ((x) [2] << 24))
-
-#define BET2H_SHORT_PTR(x) (((x) [0] << 8) + (x) [1])
-#define BET2H_INT_PTR(x) (((x) [0] << 24) + ((x) [1] << 16) + ((x) [2] << 8))
-
-/*-----------------------------------------------------------------------------------------------
-** Generic functions for performing endian swapping on integer arrays.
-*/
-
-static inline void
-endswap_short_array (short *ptr, int len)
-{ short temp ;
-
- while (--len >= 0)
- { temp = ptr [len] ;
- ptr [len] = ENDSWAP_SHORT (temp) ;
- } ;
-} /* endswap_short_array */
-
-static inline void
-endswap_short_copy (short *dest, const short *src, int len)
-{
- while (--len >= 0)
- { dest [len] = ENDSWAP_SHORT (src [len]) ;
- } ;
-} /* endswap_short_copy */
-
-static inline void
-endswap_int_array (int *ptr, int len)
-{ int temp ;
-
- while (--len >= 0)
- { temp = ptr [len] ;
- ptr [len] = ENDSWAP_INT (temp) ;
- } ;
-} /* endswap_int_array */
-
-static inline void
-endswap_int_copy (int *dest, const int *src, int len)
-{
- while (--len >= 0)
- { dest [len] = ENDSWAP_INT (src [len]) ;
- } ;
-} /* endswap_int_copy */
-
-/*========================================================================================
-*/
-
-#if (HAVE_BYTESWAP_H && defined (SIZEOF_INT64_T) && (SIZEOF_INT64_T == 8))
-
-static inline void
-endswap_int64_t_array (int64_t *ptr, int len)
-{ int64_t value ;
-
- while (--len >= 0)
- { value = ptr [len] ;
- ptr [len] = bswap_64 (value) ;
- } ;
-} /* endswap_int64_t_array */
-
-static inline void
-endswap_int64_t_copy (int64_t *dest, const int64_t *src, int len)
-{ int64_t value ;
-
- while (--len >= 0)
- { value = src [len] ;
- dest [len] = bswap_64 (value) ;
- } ;
-} /* endswap_int64_t_copy */
-
-#else
-
-static inline void
-endswap_int64_t_array (int64_t *ptr, int len)
-{ unsigned char *ucptr, temp ;
-
- ucptr = (unsigned char *) ptr ;
- ucptr += 8 * len ;
- while (--len >= 0)
- { ucptr -= 8 ;
-
- temp = ucptr [0] ;
- ucptr [0] = ucptr [7] ;
- ucptr [7] = temp ;
-
- temp = ucptr [1] ;
- ucptr [1] = ucptr [6] ;
- ucptr [6] = temp ;
-
- temp = ucptr [2] ;
- ucptr [2] = ucptr [5] ;
- ucptr [5] = temp ;
-
- temp = ucptr [3] ;
- ucptr [3] = ucptr [4] ;
- ucptr [4] = temp ;
- } ;
-} /* endswap_int64_t_array */
-
-static inline void
-endswap_int64_t_copy (int64_t *dest, const int64_t *src, int len)
-{ const unsigned char *psrc ;
- unsigned char *pdest ;
-
- if (dest == src)
- { endswap_int64_t_array (dest, len) ;
- return ;
- } ;
-
- psrc = ((const unsigned char *) src) + 8 * len ;
- pdest = ((unsigned char *) dest) + 8 * len ;
- while (--len >= 0)
- { psrc -= 8 ;
- pdest -= 8 ;
-
- pdest [0] = psrc [7] ;
- pdest [2] = psrc [5] ;
- pdest [4] = psrc [3] ;
- pdest [6] = psrc [1] ;
- pdest [7] = psrc [0] ;
- pdest [1] = psrc [6] ;
- pdest [3] = psrc [4] ;
- pdest [5] = psrc [2] ;
- } ;
-} /* endswap_int64_t_copy */
-
-#endif
-
-/* A couple of wrapper functions. */
-
-static inline void
-endswap_float_array (float *ptr, int len)
-{ endswap_int_array ((void *) ptr, len) ;
-} /* endswap_float_array */
-
-static inline void
-endswap_double_array (double *ptr, int len)
-{ endswap_int64_t_array ((void *) ptr, len) ;
-} /* endswap_double_array */
-
-static inline void
-endswap_float_copy (float *dest, const float *src, int len)
-{ endswap_int_copy ((int *) dest, (const int *) src, len) ;
-} /* endswap_float_copy */
-
-static inline void
-endswap_double_copy (double *dest, const double *src, int len)
-{ endswap_int64_t_copy ((int64_t *) dest, (const int64_t *) src, len) ;
-} /* endswap_double_copy */
-
-#endif /* SFENDIAN_INCLUDED */
-
projects / Faustine.git / blobdiff
