1 files changed, 78 insertions, 37 deletions
diff --git a/src/pulsecore/endianmacros.h b/src/pulsecore/endianmacros.h
index 65db3feb..26336918 100644
--- a/src/pulsecore/endianmacros.h
+++ b/src/pulsecore/endianmacros.h
@@ -1,21 +1,22 @@
 #ifndef fooendianmacroshfoo
 #define fooendianmacroshfoo
 
-/* $Id$ */
-
 /***
   This file is part of PulseAudio.
- 
+
+  Copyright 2004-2006 Lennart Poettering
+  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
   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
@@ -24,54 +25,94 @@
 
 #include <inttypes.h>
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
+#ifndef PACKAGE
+#error "Please include config.h before including this file!"
+#endif
+
+#ifdef HAVE_BYTESWAP_H
+#include <byteswap.h>
+#endif
+
+#ifdef HAVE_BYTESWAP_H
+#define PA_INT16_SWAP(x) ((int16_t) bswap_16((uint16_t) x))
+#define PA_UINT16_SWAP(x) ((uint16_t) bswap_16((uint16_t) x))
+#define PA_INT32_SWAP(x) ((int32_t) bswap_32((uint32_t) x))
+#define PA_UINT32_SWAP(x) ((uint32_t) bswap_32((uint32_t) x))
+#else
+#define PA_INT16_SWAP(x) ( (int16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) )
+#define PA_UINT16_SWAP(x) ( (uint16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) )
+#define PA_INT32_SWAP(x) ( (int32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) )
+#define PA_UINT32_SWAP(x) ( (uint32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) )
 #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) ) )
+static inline float PA_FLOAT32_SWAP(float x) {
+    uint32_t i = *(uint32_t*) &x;
+    i = PA_UINT32_SWAP(i);
+    return *(float*) &i;
+}
+
+#define PA_MAYBE_INT16_SWAP(c,x) ((c) ? PA_INT32_SWAP(x) : x)
+#define PA_MAYBE_UINT16_SWAP(c,x) ((c) ? PA_UINT32_SWAP(x) : x)
+
+#define PA_MAYBE_INT32_SWAP(c,x) ((c) ? PA_INT32_SWAP(x) : x)
+#define PA_MAYBE_UINT32_SWAP(c,x) ((c) ? PA_UINT32_SWAP(x) : x)
 
-#define MAYBE_INT32_SWAP(c,x) ((c) ? INT32_SWAP(x) : x)
-#define MAYBE_UINT32_SWAP(c,x) ((c) ? UINT32_SWAP(x) : x)
+#define PA_MAYBE_FLOAT32_SWAP(c,x) ((c) ? PA_FLOAT32_SWAP(x) : x)
 
 #ifdef WORDS_BIGENDIAN
- #define INT16_FROM_LE(x) INT16_SWAP(x)
- #define INT16_FROM_BE(x) ((int16_t)(x))
+ #define PA_INT16_FROM_LE(x) PA_INT16_SWAP(x)
+ #define PA_INT16_FROM_BE(x) ((int16_t)(x))
+
+ #define PA_INT16_TO_LE(x) PA_INT16_SWAP(x)
+ #define PA_INT16_TO_BE(x) ((int16_t)(x))
+
+ #define PA_UINT16_FROM_LE(x) PA_UINT16_SWAP(x)
+ #define PA_UINT16_FROM_BE(x) ((uint16_t)(x))
 
- #define INT16_TO_LE(x) INT16_SWAP(x)
- #define INT16_TO_BE(x) ((int16_t)(x))
+ #define PA_UINT16_TO_LE(x) PA_UINT16_SWAP(x)
+ #define PA_UINT16_TO_BE(x) ((uint16_t)(x))
 
- #define UINT16_FROM_LE(x) UINT16_SWAP(x)
- #define UINT16_FROM_BE(x) ((uint16_t)(x))
+ #define PA_INT32_FROM_LE(x) PA_INT32_SWAP(x)
+ #define PA_INT32_FROM_BE(x) ((int32_t)(x))
 
- #define INT32_FROM_LE(x) INT32_SWAP(x)
- #define INT32_FROM_BE(x) ((int32_t)(x))
+ #define PA_INT32_TO_LE(x) PA_INT32_SWAP(x)
+ #define PA_INT32_TO_BE(x) ((int32_t)(x))
 
- #define UINT32_FROM_LE(x) UINT32_SWAP(x)
- #define UINT32_FROM_BE(x) ((uint32_t)(x))
+ #define PA_UINT32_FROM_LE(x) PA_UINT32_SWAP(x)
+ #define PA_UINT32_FROM_BE(x) ((uint32_t)(x))
 
- #define UINT32_TO_LE(x) UINT32_SWAP(x)
- #define UINT32_TO_BE(x) ((uint32_t)(x))
+ #define PA_UINT32_TO_LE(x) PA_UINT32_SWAP(x)
+ #define PA_UINT32_TO_BE(x) ((uint32_t)(x))
+
+ #define PA_FLOAT32_TO_LE(x) PA_FLOAT32_SWAP(x)
+ #define PA_FLOAT32_TO_BE(x) ((float) (x))
 #else
- #define INT16_FROM_LE(x) ((int16_t)(x))
- #define INT16_FROM_BE(x) INT16_SWAP(x)
+ #define PA_INT16_FROM_LE(x) ((int16_t)(x))
+ #define PA_INT16_FROM_BE(x) PA_INT16_SWAP(x)
+
+ #define PA_INT16_TO_LE(x) ((int16_t)(x))
+ #define PA_INT16_TO_BE(x) PA_INT16_SWAP(x)
+
+ #define PA_UINT16_FROM_LE(x) ((uint16_t)(x))
+ #define PA_UINT16_FROM_BE(x) PA_UINT16_SWAP(x)
+
+ #define PA_UINT16_TO_LE(x) ((uint16_t)(x))
+ #define PA_UINT16_TO_BE(x) PA_UINT16_SWAP(x)
 
- #define INT16_TO_LE(x) ((int16_t)(x))
- #define INT16_TO_BE(x) INT16_SWAP(x)
+ #define PA_INT32_FROM_LE(x) ((int32_t)(x))
+ #define PA_INT32_FROM_BE(x) PA_INT32_SWAP(x)
 
- #define UINT16_FROM_LE(x) ((uint16_t)(x))
- #define UINT16_FROM_BE(x) UINT16_SWAP(x)
+ #define PA_INT32_TO_LE(x) ((int32_t)(x))
+ #define PA_INT32_TO_BE(x) PA_INT32_SWAP(x)
 
- #define INT32_FROM_LE(x) ((int32_t)(x))
- #define INT32_FROM_BE(x) INT32_SWAP(x)
+ #define PA_UINT32_FROM_LE(x) ((uint32_t)(x))
+ #define PA_UINT32_FROM_BE(x) PA_UINT32_SWAP(x)
 
- #define UINT32_FROM_LE(x) ((uint32_t)(x))
- #define UINT32_FROM_BE(x) UINT32_SWAP(x)
+ #define PA_UINT32_TO_LE(x) ((uint32_t)(x))
+ #define PA_UINT32_TO_BE(x) PA_UINT32_SWAP(x)
 
- #define UINT32_TO_LE(x) ((uint32_t)(x))
- #define UINT32_TO_BE(x) UINT32_SWAP(x)
+ #define PA_FLOAT32_TO_LE(x) ((float) (x))
+ #define PA_FLOAT32_TO_BE(x) PA_FLOAT32_SWAP(x)
 #endif
 
 #endif