third_party/libwebp/utils/endian_inl_utils.h - Issue 2651883004: libwebp-0.6.0-rc1

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Side by Side Diff: third_party/libwebp/utils/endian_inl_utils.h

Issue 2651883004: libwebp-0.6.0-rc1 (Closed)

Patch Set: Created 3 years, 11 months ago

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1 // Copyright 2014 Google Inc. All Rights Reserved.	1 // Copyright 2014 Google Inc. All Rights Reserved.

2 //	2 //

3 // Use of this source code is governed by a BSD-style license	3 // Use of this source code is governed by a BSD-style license

4 // that can be found in the COPYING file in the root of the source	4 // that can be found in the COPYING file in the root of the source

5 // tree. An additional intellectual property rights grant can be found	5 // tree. An additional intellectual property rights grant can be found

6 // in the file PATENTS. All contributing project authors may	6 // in the file PATENTS. All contributing project authors may

7 // be found in the AUTHORS file in the root of the source tree.	7 // be found in the AUTHORS file in the root of the source tree.

8 // -----------------------------------------------------------------------------	8 // -----------------------------------------------------------------------------

9 //	9 //

10 // Endian related functions.	10 // Endian related functions.

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91 return (uint64_t)_byteswap_uint64(x);	91 return (uint64_t)_byteswap_uint64(x);

92 #else // generic code for swapping 64-bit values (suggested by bdb@)	92 #else // generic code for swapping 64-bit values (suggested by bdb@)

93 x = ((x & 0xffffffff00000000ull) >> 32) \| ((x & 0x00000000ffffffffull) << 32);	93 x = ((x & 0xffffffff00000000ull) >> 32) \| ((x & 0x00000000ffffffffull) << 32);

94 x = ((x & 0xffff0000ffff0000ull) >> 16) \| ((x & 0x0000ffff0000ffffull) << 16);	94 x = ((x & 0xffff0000ffff0000ull) >> 16) \| ((x & 0x0000ffff0000ffffull) << 16);

95 x = ((x & 0xff00ff00ff00ff00ull) >> 8) \| ((x & 0x00ff00ff00ff00ffull) << 8);	95 x = ((x & 0xff00ff00ff00ff00ull) >> 8) \| ((x & 0x00ff00ff00ff00ffull) << 8);

96 return x;	96 return x;

97 #endif // HAVE_BUILTIN_BSWAP64	97 #endif // HAVE_BUILTIN_BSWAP64

98 }	98 }

99	99

100 #endif // WEBP_UTILS_ENDIAN_INL_H_	100 #endif // WEBP_UTILS_ENDIAN_INL_H_

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