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-rw-r--r--src/pulsecore/endianmacros.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/src/pulsecore/endianmacros.h b/src/pulsecore/endianmacros.h
new file mode 100644
index 00000000..65db3feb
--- /dev/null
+++ b/src/pulsecore/endianmacros.h
@@ -0,0 +1,77 @@
+#ifndef fooendianmacroshfoo
+#define fooendianmacroshfoo
+
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ PulseAudio 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.
+
+ PulseAudio 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 PulseAudio; 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