/src/aom/aom_util/endian_inl.h

Source (jump to first uncovered line)
/*
 * Copyright (c) 2016, Alliance for Open Media. All rights reserved.
 *
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 */
//
// Endian related functions.

#ifndef AOM_AOM_UTIL_ENDIAN_INL_H_
#define AOM_AOM_UTIL_ENDIAN_INL_H_

#include <stdlib.h>

#include "config/aom_config.h"

#include "aom/aom_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

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(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  // AOM_AOM_UTIL_ENDIAN_INL_H_

Coverage Report

Created: 2025-06-22 08:04

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright (c) 2016, Alliance for Open Media. All rights reserved.
3		*
4		* This source code is subject to the terms of the BSD 2 Clause License and
5		* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6		* was not distributed with this source code in the LICENSE file, you can
7		* obtain it at www.aomedia.org/license/software. If the Alliance for Open
8		* Media Patent License 1.0 was not distributed with this source code in the
9		* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10		*/
11		//
12		// Endian related functions.
13
14		#ifndef AOM_AOM_UTIL_ENDIAN_INL_H_
15		#define AOM_AOM_UTIL_ENDIAN_INL_H_
16
17		#include <stdlib.h>
18
19		#include "config/aom_config.h"
20
21		#include "aom/aom_integer.h"
22
23		#if defined(__GNUC__)
24		#define LOCAL_GCC_VERSION ((__GNUC__ << 8) \| __GNUC_MINOR__)
25		#define LOCAL_GCC_PREREQ(maj, min) (LOCAL_GCC_VERSION >= (((maj) << 8) \| (min)))
26		#else
27		#define LOCAL_GCC_VERSION 0
28		#define LOCAL_GCC_PREREQ(maj, min) 0
29		#endif
30
31		// handle clang compatibility
32		#ifndef __has_builtin
33		#define __has_builtin(x) 0
34		#endif
35
36		// some endian fix (e.g.: mips-gcc doesn't define __BIG_ENDIAN__)
37		#if !defined(WORDS_BIGENDIAN) && \
38		(defined(__BIG_ENDIAN__) \|\| defined(_M_PPC) \|\| \
39		(defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)))
40		#define WORDS_BIGENDIAN
41		#endif
42
43		#if defined(WORDS_BIGENDIAN)
44		#define HToLE32 BSwap32
45		#define HToLE16 BSwap16
46		#define HToBE64(x) (x)
47		#define HToBE32(x) (x)
48		#else
49		#define HToLE32(x) (x)
50		#define HToLE16(x) (x)
51	0	#define HToBE64(X) BSwap64(X)
52		#define HToBE32(X) BSwap32(X)
53		#endif
54
55		#if LOCAL_GCC_PREREQ(4, 8) \|\| __has_builtin(__builtin_bswap16)
56		#define HAVE_BUILTIN_BSWAP16
57		#endif
58
59		#if LOCAL_GCC_PREREQ(4, 3) \|\| __has_builtin(__builtin_bswap32)
60		#define HAVE_BUILTIN_BSWAP32
61		#endif
62
63		#if LOCAL_GCC_PREREQ(4, 3) \|\| __has_builtin(__builtin_bswap64)
64		#define HAVE_BUILTIN_BSWAP64
65		#endif
66
67	0	static inline uint16_t BSwap16(uint16_t x) {
68	0	#if defined(HAVE_BUILTIN_BSWAP16)
69	0	return __builtin_bswap16(x);
70	0	#elif defined(_MSC_VER)
71	0	return _byteswap_ushort(x);
72	0	#else
73	0	// gcc will recognize a 'rorw $8, ...' here:
74	0	return (x >> 8) \| ((x & 0xff) << 8);
75	0	#endif // HAVE_BUILTIN_BSWAP16
76	0	} Unexecuted instantiation: av1_cx_iface.c:BSwap16 Unexecuted instantiation: allintra_vis.c:BSwap16 Unexecuted instantiation: av1_quantize.c:BSwap16 Unexecuted instantiation: bitstream.c:BSwap16 Unexecuted instantiation: context_tree.c:BSwap16 Unexecuted instantiation: encodeframe.c:BSwap16 Unexecuted instantiation: encodeframe_utils.c:BSwap16 Unexecuted instantiation: encodemb.c:BSwap16 Unexecuted instantiation: encodemv.c:BSwap16 Unexecuted instantiation: encoder.c:BSwap16 Unexecuted instantiation: encoder_utils.c:BSwap16 Unexecuted instantiation: encodetxb.c:BSwap16 Unexecuted instantiation: ethread.c:BSwap16 Unexecuted instantiation: firstpass.c:BSwap16 Unexecuted instantiation: global_motion_facade.c:BSwap16 Unexecuted instantiation: level.c:BSwap16 Unexecuted instantiation: lookahead.c:BSwap16 Unexecuted instantiation: mcomp.c:BSwap16 Unexecuted instantiation: mv_prec.c:BSwap16 Unexecuted instantiation: palette.c:BSwap16 Unexecuted instantiation: partition_search.c:BSwap16 Unexecuted instantiation: partition_strategy.c:BSwap16 Unexecuted instantiation: pass2_strategy.c:BSwap16 Unexecuted instantiation: pickcdef.c:BSwap16 Unexecuted instantiation: picklpf.c:BSwap16 Unexecuted instantiation: pickrst.c:BSwap16 Unexecuted instantiation: ratectrl.c:BSwap16 Unexecuted instantiation: rd.c:BSwap16 Unexecuted instantiation: rdopt.c:BSwap16 Unexecuted instantiation: nonrd_pickmode.c:BSwap16 Unexecuted instantiation: nonrd_opt.c:BSwap16 Unexecuted instantiation: segmentation.c:BSwap16 Unexecuted instantiation: speed_features.c:BSwap16 Unexecuted instantiation: superres_scale.c:BSwap16 Unexecuted instantiation: svc_layercontext.c:BSwap16 Unexecuted instantiation: temporal_filter.c:BSwap16 Unexecuted instantiation: tokenize.c:BSwap16 Unexecuted instantiation: tpl_model.c:BSwap16 Unexecuted instantiation: tx_search.c:BSwap16 Unexecuted instantiation: txb_rdopt.c:BSwap16 Unexecuted instantiation: intra_mode_search.c:BSwap16 Unexecuted instantiation: var_based_part.c:BSwap16 Unexecuted instantiation: av1_noise_estimate.c:BSwap16 Unexecuted instantiation: bitwriter.c:BSwap16 Unexecuted instantiation: entenc.c:BSwap16 Unexecuted instantiation: binary_codes_writer.c:BSwap16 Unexecuted instantiation: aq_complexity.c:BSwap16 Unexecuted instantiation: aq_cyclicrefresh.c:BSwap16 Unexecuted instantiation: aq_variance.c:BSwap16 Unexecuted instantiation: compound_type.c:BSwap16 Unexecuted instantiation: encode_strategy.c:BSwap16 Unexecuted instantiation: global_motion.c:BSwap16 Unexecuted instantiation: gop_structure.c:BSwap16 Unexecuted instantiation: interp_search.c:BSwap16 Unexecuted instantiation: motion_search_facade.c:BSwap16
77
78	0	static inline uint32_t BSwap32(uint32_t x) {
79	0	#if defined(HAVE_BUILTIN_BSWAP32)
80	0	return __builtin_bswap32(x);
81	0	#elif defined(__i386__) \|\| defined(__x86_64__)
82	0	uint32_t swapped_bytes;
83	0	__asm__ volatile("bswap %0" : "=r"(swapped_bytes) : "0"(x));
84	0	return swapped_bytes;
85	0	#elif defined(_MSC_VER)
86	0	return (uint32_t)_byteswap_ulong(x);
87	0	#else
88	0	return (x >> 24) \| ((x >> 8) & 0xff00) \| ((x << 8) & 0xff0000) \| (x << 24);
89	0	#endif // HAVE_BUILTIN_BSWAP32
90	0	} Unexecuted instantiation: av1_cx_iface.c:BSwap32 Unexecuted instantiation: allintra_vis.c:BSwap32 Unexecuted instantiation: av1_quantize.c:BSwap32 Unexecuted instantiation: bitstream.c:BSwap32 Unexecuted instantiation: context_tree.c:BSwap32 Unexecuted instantiation: encodeframe.c:BSwap32 Unexecuted instantiation: encodeframe_utils.c:BSwap32 Unexecuted instantiation: encodemb.c:BSwap32 Unexecuted instantiation: encodemv.c:BSwap32 Unexecuted instantiation: encoder.c:BSwap32 Unexecuted instantiation: encoder_utils.c:BSwap32 Unexecuted instantiation: encodetxb.c:BSwap32 Unexecuted instantiation: ethread.c:BSwap32 Unexecuted instantiation: firstpass.c:BSwap32 Unexecuted instantiation: global_motion_facade.c:BSwap32 Unexecuted instantiation: level.c:BSwap32 Unexecuted instantiation: lookahead.c:BSwap32 Unexecuted instantiation: mcomp.c:BSwap32 Unexecuted instantiation: mv_prec.c:BSwap32 Unexecuted instantiation: palette.c:BSwap32 Unexecuted instantiation: partition_search.c:BSwap32 Unexecuted instantiation: partition_strategy.c:BSwap32 Unexecuted instantiation: pass2_strategy.c:BSwap32 Unexecuted instantiation: pickcdef.c:BSwap32 Unexecuted instantiation: picklpf.c:BSwap32 Unexecuted instantiation: pickrst.c:BSwap32 Unexecuted instantiation: ratectrl.c:BSwap32 Unexecuted instantiation: rd.c:BSwap32 Unexecuted instantiation: rdopt.c:BSwap32 Unexecuted instantiation: nonrd_pickmode.c:BSwap32 Unexecuted instantiation: nonrd_opt.c:BSwap32 Unexecuted instantiation: segmentation.c:BSwap32 Unexecuted instantiation: speed_features.c:BSwap32 Unexecuted instantiation: superres_scale.c:BSwap32 Unexecuted instantiation: svc_layercontext.c:BSwap32 Unexecuted instantiation: temporal_filter.c:BSwap32 Unexecuted instantiation: tokenize.c:BSwap32 Unexecuted instantiation: tpl_model.c:BSwap32 Unexecuted instantiation: tx_search.c:BSwap32 Unexecuted instantiation: txb_rdopt.c:BSwap32 Unexecuted instantiation: intra_mode_search.c:BSwap32 Unexecuted instantiation: var_based_part.c:BSwap32 Unexecuted instantiation: av1_noise_estimate.c:BSwap32 Unexecuted instantiation: bitwriter.c:BSwap32 Unexecuted instantiation: entenc.c:BSwap32 Unexecuted instantiation: binary_codes_writer.c:BSwap32 Unexecuted instantiation: aq_complexity.c:BSwap32 Unexecuted instantiation: aq_cyclicrefresh.c:BSwap32 Unexecuted instantiation: aq_variance.c:BSwap32 Unexecuted instantiation: compound_type.c:BSwap32 Unexecuted instantiation: encode_strategy.c:BSwap32 Unexecuted instantiation: global_motion.c:BSwap32 Unexecuted instantiation: gop_structure.c:BSwap32 Unexecuted instantiation: interp_search.c:BSwap32 Unexecuted instantiation: motion_search_facade.c:BSwap32
91
92	0	static inline uint64_t BSwap64(uint64_t x) {
93	0	#if defined(HAVE_BUILTIN_BSWAP64)
94	0	return __builtin_bswap64(x);
95		#elif defined(__x86_64__)
96		uint64_t swapped_bytes;
97		__asm__ volatile("bswapq %0" : "=r"(swapped_bytes) : "0"(x));
98		return swapped_bytes;
99		#elif defined(_MSC_VER)
100		return (uint64_t)_byteswap_uint64(x);
101		#else // generic code for swapping 64-bit values (suggested by bdb@)
102		x = ((x & 0xffffffff00000000ull) >> 32) \| ((x & 0x00000000ffffffffull) << 32);
103		x = ((x & 0xffff0000ffff0000ull) >> 16) \| ((x & 0x0000ffff0000ffffull) << 16);
104		x = ((x & 0xff00ff00ff00ff00ull) >> 8) \| ((x & 0x00ff00ff00ff00ffull) << 8);
105		return x;
106		#endif // HAVE_BUILTIN_BSWAP64
107	0	} Unexecuted instantiation: av1_cx_iface.c:BSwap64 Unexecuted instantiation: allintra_vis.c:BSwap64 Unexecuted instantiation: av1_quantize.c:BSwap64 Unexecuted instantiation: bitstream.c:BSwap64 Unexecuted instantiation: context_tree.c:BSwap64 Unexecuted instantiation: encodeframe.c:BSwap64 Unexecuted instantiation: encodeframe_utils.c:BSwap64 Unexecuted instantiation: encodemb.c:BSwap64 Unexecuted instantiation: encodemv.c:BSwap64 Unexecuted instantiation: encoder.c:BSwap64 Unexecuted instantiation: encoder_utils.c:BSwap64 Unexecuted instantiation: encodetxb.c:BSwap64 Unexecuted instantiation: ethread.c:BSwap64 Unexecuted instantiation: firstpass.c:BSwap64 Unexecuted instantiation: global_motion_facade.c:BSwap64 Unexecuted instantiation: level.c:BSwap64 Unexecuted instantiation: lookahead.c:BSwap64 Unexecuted instantiation: mcomp.c:BSwap64 Unexecuted instantiation: mv_prec.c:BSwap64 Unexecuted instantiation: palette.c:BSwap64 Unexecuted instantiation: partition_search.c:BSwap64 Unexecuted instantiation: partition_strategy.c:BSwap64 Unexecuted instantiation: pass2_strategy.c:BSwap64 Unexecuted instantiation: pickcdef.c:BSwap64 Unexecuted instantiation: picklpf.c:BSwap64 Unexecuted instantiation: pickrst.c:BSwap64 Unexecuted instantiation: ratectrl.c:BSwap64 Unexecuted instantiation: rd.c:BSwap64 Unexecuted instantiation: rdopt.c:BSwap64 Unexecuted instantiation: nonrd_pickmode.c:BSwap64 Unexecuted instantiation: nonrd_opt.c:BSwap64 Unexecuted instantiation: segmentation.c:BSwap64 Unexecuted instantiation: speed_features.c:BSwap64 Unexecuted instantiation: superres_scale.c:BSwap64 Unexecuted instantiation: svc_layercontext.c:BSwap64 Unexecuted instantiation: temporal_filter.c:BSwap64 Unexecuted instantiation: tokenize.c:BSwap64 Unexecuted instantiation: tpl_model.c:BSwap64 Unexecuted instantiation: tx_search.c:BSwap64 Unexecuted instantiation: txb_rdopt.c:BSwap64 Unexecuted instantiation: intra_mode_search.c:BSwap64 Unexecuted instantiation: var_based_part.c:BSwap64 Unexecuted instantiation: av1_noise_estimate.c:BSwap64 Unexecuted instantiation: bitwriter.c:BSwap64 Unexecuted instantiation: entenc.c:BSwap64 Unexecuted instantiation: binary_codes_writer.c:BSwap64 Unexecuted instantiation: aq_complexity.c:BSwap64 Unexecuted instantiation: aq_cyclicrefresh.c:BSwap64 Unexecuted instantiation: aq_variance.c:BSwap64 Unexecuted instantiation: compound_type.c:BSwap64 Unexecuted instantiation: encode_strategy.c:BSwap64 Unexecuted instantiation: global_motion.c:BSwap64 Unexecuted instantiation: gop_structure.c:BSwap64 Unexecuted instantiation: interp_search.c:BSwap64 Unexecuted instantiation: motion_search_facade.c:BSwap64
108
109		#endif // AOM_AOM_UTIL_ENDIAN_INL_H_