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Unified Diff: include/share/endswap.h

Issue 1961133002: Update FLAC to 1.3.1 (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/flac.git@master
Patch Set: build config tweaks for Windows Created 4 years, 7 months ago
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Index: include/share/endswap.h
diff --git a/include/FLAC/ordinals.h b/include/share/endswap.h
similarity index 58%
copy from include/FLAC/ordinals.h
copy to include/share/endswap.h
index a7a5cd96135929ad078755f16d8f4d16a9d3f386..4fde4c15684f1bb6306426ba00a9b2a9bbd2097e 100644
--- a/include/FLAC/ordinals.h
+++ b/include/share/endswap.h
@@ -1,5 +1,5 @@
/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson
+ * Copyright (C) 2012-2014 Xiph.org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -29,52 +29,50 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#ifndef FLAC__ORDINALS_H
-#define FLAC__ORDINALS_H
+/* It is assumed that this header will be included after "config.h". */
-#if !(defined(_MSC_VER) || defined(__BORLANDC__) || defined(__EMX__))
-#include <inttypes.h>
+#if HAVE_BSWAP32 /* GCC and Clang */
+
+/* GCC prior to 4.8 didn't provide bswap16 on x86_64 */
+#if ! HAVE_BSWAP16
+static inline unsigned short __builtin_bswap16(unsigned short a)
+{
+ return (a<<8)|(a>>8);
+}
#endif
-typedef signed char FLAC__int8;
-typedef unsigned char FLAC__uint8;
-
-#if defined(_MSC_VER) || defined(__BORLANDC__)
-typedef __int16 FLAC__int16;
-typedef __int32 FLAC__int32;
-typedef __int64 FLAC__int64;
-typedef unsigned __int16 FLAC__uint16;
-typedef unsigned __int32 FLAC__uint32;
-typedef unsigned __int64 FLAC__uint64;
-#elif defined(__EMX__)
-typedef short FLAC__int16;
-typedef long FLAC__int32;
-typedef long long FLAC__int64;
-typedef unsigned short FLAC__uint16;
-typedef unsigned long FLAC__uint32;
-typedef unsigned long long FLAC__uint64;
+#define ENDSWAP_16(x) (__builtin_bswap16 (x))
+#define ENDSWAP_32(x) (__builtin_bswap32 (x))
+
+#elif defined _MSC_VER /* Windows. Apparently in <stdlib.h>. */
+
+#define ENDSWAP_16(x) (_byteswap_ushort (x))
+#define ENDSWAP_32(x) (_byteswap_ulong (x))
+
+#elif defined HAVE_BYTESWAP_H /* Linux */
+
+#include <byteswap.h>
+
+#define ENDSWAP_16(x) (bswap_16 (x))
+#define ENDSWAP_32(x) (bswap_32 (x))
+
#else
-typedef int16_t FLAC__int16;
-typedef int32_t FLAC__int32;
-typedef int64_t FLAC__int64;
-typedef uint16_t FLAC__uint16;
-typedef uint32_t FLAC__uint32;
-typedef uint64_t FLAC__uint64;
+
+#define ENDSWAP_16(x) ((((x) >> 8) & 0xFF) | (((x) & 0xFF) << 8))
+#define ENDSWAP_32(x) ((((x) >> 24) & 0xFF) | (((x) >> 8) & 0xFF00) | (((x) & 0xFF00) << 8) | (((x) & 0xFF) << 24))
+
#endif
-typedef int FLAC__bool;
-typedef FLAC__uint8 FLAC__byte;
+/* Host to little-endian byte swapping. */
+#if CPU_IS_BIG_ENDIAN
-#ifdef true
-#undef true
-#endif
-#ifdef false
-#undef false
-#endif
-#ifndef __cplusplus
-#define true 1
-#define false 0
-#endif
+#define H2LE_16(x) ENDSWAP_16 (x)
+#define H2LE_32(x) ENDSWAP_32 (x)
+
+#else
+
+#define H2LE_16(x) (x)
+#define H2LE_32(x) (x)
#endif
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