// 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 WEBP_UTILS_ENDIAN_INL_UTILS_H_

#define WEBP_UTILS_ENDIAN_INL_UTILS_H_

#ifdef HAVE_CONFIG_H

#include "src/webp/config.h"

#endif

#include "src/dsp/dsp.h"

#include "src/utils/bounds_safety.h"

#include "src/webp/types.h"

WEBP_ASSUME_UNSAFE_INDEXABLE_ABI

#if defined(WORDS_BIGENDIAN)

#define HToLE32 BSwap32

#define HToLE16 BSwap16

#else

#define HToLE32(x) (x)

#define HToLE16(x) (x)

#endif

#if !defined(HAVE_CONFIG_H)

#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

#endif  // !HAVE_CONFIG_H

static WEBP_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

}

Unexecuted instantiation: tree_dec.c:BSwap16

Unexecuted instantiation: vp8_dec.c:BSwap16

Unexecuted instantiation: lossless.c:BSwap16

Unexecuted instantiation: bit_reader_utils.c:BSwap16

Unexecuted instantiation: bit_writer_utils.c:BSwap16

static WEBP_INLINE uint32_t BSwap32(uint32_t x) {

#if defined(WEBP_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

}

Unexecuted instantiation: tree_dec.c:BSwap32

Unexecuted instantiation: vp8_dec.c:BSwap32

Unexecuted instantiation: lossless.c:BSwap32

Unexecuted instantiation: bit_reader_utils.c:BSwap32

Unexecuted instantiation: bit_writer_utils.c:BSwap32

static WEBP_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

}

tree_dec.c:BSwap64

Line

Count

Source

78

125k

static WEBP_INLINE uint64_t BSwap64(uint64_t x) {

79

125k

#if defined(HAVE_BUILTIN_BSWAP64)

80

125k

  return __builtin_bswap64(x);

81

#elif defined(__x86_64__)

82

  uint64_t swapped_bytes;

83

  __asm__ volatile("bswapq %0" : "=r"(swapped_bytes) : "0"(x));

84

  return swapped_bytes;

85

#elif defined(_MSC_VER)

86

  return (uint64_t)_byteswap_uint64(x);

87

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

88

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

89

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

90

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

91

  return x;

92

#endif  // HAVE_BUILTIN_BSWAP64

93

125k

}

vp8_dec.c:BSwap64

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Source

78

1.39M

static WEBP_INLINE uint64_t BSwap64(uint64_t x) {

79

1.39M

#if defined(HAVE_BUILTIN_BSWAP64)

80

1.39M

  return __builtin_bswap64(x);

81

#elif defined(__x86_64__)

82

  uint64_t swapped_bytes;

83

  __asm__ volatile("bswapq %0" : "=r"(swapped_bytes) : "0"(x));

84

  return swapped_bytes;

85

#elif defined(_MSC_VER)

86

  return (uint64_t)_byteswap_uint64(x);

87

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

88

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

89

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

90

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

91

  return x;

92

#endif  // HAVE_BUILTIN_BSWAP64

93

1.39M

}

Unexecuted instantiation: lossless.c:BSwap64

bit_reader_utils.c:BSwap64

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Count

Source

78

720k

static WEBP_INLINE uint64_t BSwap64(uint64_t x) {

79

720k

#if defined(HAVE_BUILTIN_BSWAP64)

80

720k

  return __builtin_bswap64(x);

81

#elif defined(__x86_64__)

82

  uint64_t swapped_bytes;

83

  __asm__ volatile("bswapq %0" : "=r"(swapped_bytes) : "0"(x));

84

  return swapped_bytes;

85

#elif defined(_MSC_VER)

86

  return (uint64_t)_byteswap_uint64(x);

87

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

88

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

89

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

90

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

91

  return x;

92

#endif  // HAVE_BUILTIN_BSWAP64

93

720k

}

Unexecuted instantiation: bit_writer_utils.c:BSwap64

#endif  // WEBP_UTILS_ENDIAN_INL_UTILS_H_