diff options
Diffstat (limited to 'thirdparty/libvpx/vpx_util/endian_inl.h')
-rw-r--r-- | thirdparty/libvpx/vpx_util/endian_inl.h | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/thirdparty/libvpx/vpx_util/endian_inl.h b/thirdparty/libvpx/vpx_util/endian_inl.h deleted file mode 100644 index 37bdce1ccd..0000000000 --- a/thirdparty/libvpx/vpx_util/endian_inl.h +++ /dev/null @@ -1,120 +0,0 @@ -// Copyright 2014 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// Endian related functions. - -#ifndef VPX_UTIL_ENDIAN_INL_H_ -#define VPX_UTIL_ENDIAN_INL_H_ - -#include <stdlib.h> -#include "./vpx_config.h" -#include "vpx/vpx_integer.h" - -#if defined(__GNUC__) -# define LOCAL_GCC_VERSION ((__GNUC__ << 8) | __GNUC_MINOR__) -# define LOCAL_GCC_PREREQ(maj, min) \ - (LOCAL_GCC_VERSION >= (((maj) << 8) | (min))) -#else -# define LOCAL_GCC_VERSION 0 -# define LOCAL_GCC_PREREQ(maj, min) 0 -#endif - -// handle clang compatibility -#ifndef __has_builtin -# define __has_builtin(x) 0 -#endif - -// some endian fix (e.g.: mips-gcc doesn't define __BIG_ENDIAN__) -#if !defined(WORDS_BIGENDIAN) && \ - (defined(__BIG_ENDIAN__) || defined(_M_PPC) || \ - (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))) -#define WORDS_BIGENDIAN -#endif - -#if defined(WORDS_BIGENDIAN) -#define HToLE32 BSwap32 -#define HToLE16 BSwap16 -#define HToBE64(x) (x) -#define HToBE32(x) (x) -#else -#define HToLE32(x) (x) -#define HToLE16(x) (x) -#define HToBE64(X) BSwap64(X) -#define HToBE32(X) BSwap32(X) -#endif - -#if LOCAL_GCC_PREREQ(4, 8) || __has_builtin(__builtin_bswap16) -#define HAVE_BUILTIN_BSWAP16 -#endif - -#if LOCAL_GCC_PREREQ(4, 3) || __has_builtin(__builtin_bswap32) -#define HAVE_BUILTIN_BSWAP32 -#endif - -#if LOCAL_GCC_PREREQ(4, 3) || __has_builtin(__builtin_bswap64) -#define HAVE_BUILTIN_BSWAP64 -#endif - -#if HAVE_MIPS32 && defined(__mips__) && !defined(__mips64) && \ - defined(__mips_isa_rev) && (__mips_isa_rev >= 2) && (__mips_isa_rev < 6) -#define VPX_USE_MIPS32_R2 -#endif - -static INLINE uint16_t BSwap16(uint16_t x) { -#if defined(HAVE_BUILTIN_BSWAP16) - return __builtin_bswap16(x); -#elif defined(_MSC_VER) - return _byteswap_ushort(x); -#else - // gcc will recognize a 'rorw $8, ...' here: - return (x >> 8) | ((x & 0xff) << 8); -#endif // HAVE_BUILTIN_BSWAP16 -} - -static INLINE uint32_t BSwap32(uint32_t x) { -#if defined(VPX_USE_MIPS32_R2) - uint32_t ret; - __asm__ volatile ( - "wsbh %[ret], %[x] \n\t" - "rotr %[ret], %[ret], 16 \n\t" - : [ret]"=r"(ret) - : [x]"r"(x) - ); - return ret; -#elif defined(HAVE_BUILTIN_BSWAP32) - return __builtin_bswap32(x); -#elif defined(__i386__) || defined(__x86_64__) - uint32_t swapped_bytes; - __asm__ volatile("bswap %0" : "=r"(swapped_bytes) : "0"(x)); - return swapped_bytes; -#elif defined(_MSC_VER) - return (uint32_t)_byteswap_ulong(x); -#else - return (x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24); -#endif // HAVE_BUILTIN_BSWAP32 -} - -static INLINE uint64_t BSwap64(uint64_t x) { -#if defined(HAVE_BUILTIN_BSWAP64) - return __builtin_bswap64(x); -#elif defined(__x86_64__) - uint64_t swapped_bytes; - __asm__ volatile("bswapq %0" : "=r"(swapped_bytes) : "0"(x)); - return swapped_bytes; -#elif defined(_MSC_VER) - return (uint64_t)_byteswap_uint64(x); -#else // generic code for swapping 64-bit values (suggested by bdb@) - x = ((x & 0xffffffff00000000ull) >> 32) | ((x & 0x00000000ffffffffull) << 32); - x = ((x & 0xffff0000ffff0000ull) >> 16) | ((x & 0x0000ffff0000ffffull) << 16); - x = ((x & 0xff00ff00ff00ff00ull) >> 8) | ((x & 0x00ff00ff00ff00ffull) << 8); - return x; -#endif // HAVE_BUILTIN_BSWAP64 -} - -#endif // VPX_UTIL_ENDIAN_INL_H_ |