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Diffstat (limited to 'src/polypcore/endianmacros.h')
-rw-r--r-- | src/polypcore/endianmacros.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/polypcore/endianmacros.h b/src/polypcore/endianmacros.h new file mode 100644 index 000000000..3ab1826a5 --- /dev/null +++ b/src/polypcore/endianmacros.h @@ -0,0 +1,77 @@ +#ifndef fooendianmacroshfoo +#define fooendianmacroshfoo + +/* $Id$ */ + +/*** + This file is part of polypaudio. + + polypaudio 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 of the License, + or (at your option) any later version. + + polypaudio 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 + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with polypaudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#define INT16_SWAP(x) ( (int16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) ) +#define UINT16_SWAP(x) ( (uint16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) ) +#define INT32_SWAP(x) ( (int32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) ) +#define UINT32_SWAP(x) ( (uint32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) ) + +#define MAYBE_INT32_SWAP(c,x) ((c) ? INT32_SWAP(x) : x) +#define MAYBE_UINT32_SWAP(c,x) ((c) ? UINT32_SWAP(x) : x) + +#ifdef WORDS_BIGENDIAN + #define INT16_FROM_LE(x) INT16_SWAP(x) + #define INT16_FROM_BE(x) ((int16_t)(x)) + + #define INT16_TO_LE(x) INT16_SWAP(x) + #define INT16_TO_BE(x) ((int16_t)(x)) + + #define UINT16_FROM_LE(x) UINT16_SWAP(x) + #define UINT16_FROM_BE(x) ((uint16_t)(x)) + + #define INT32_FROM_LE(x) INT32_SWAP(x) + #define INT32_FROM_BE(x) ((int32_t)(x)) + + #define UINT32_FROM_LE(x) UINT32_SWAP(x) + #define UINT32_FROM_BE(x) ((uint32_t)(x)) + + #define UINT32_TO_LE(x) UINT32_SWAP(x) + #define UINT32_TO_BE(x) ((uint32_t)(x)) +#else + #define INT16_FROM_LE(x) ((int16_t)(x)) + #define INT16_FROM_BE(x) INT16_SWAP(x) + + #define INT16_TO_LE(x) ((int16_t)(x)) + #define INT16_TO_BE(x) INT16_SWAP(x) + + #define UINT16_FROM_LE(x) ((uint16_t)(x)) + #define UINT16_FROM_BE(x) UINT16_SWAP(x) + + #define INT32_FROM_LE(x) ((int32_t)(x)) + #define INT32_FROM_BE(x) INT32_SWAP(x) + + #define UINT32_FROM_LE(x) ((uint32_t)(x)) + #define UINT32_FROM_BE(x) UINT32_SWAP(x) + + #define UINT32_TO_LE(x) ((uint32_t)(x)) + #define UINT32_TO_BE(x) UINT32_SWAP(x) +#endif + +#endif |