diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/rtc_base/byte_order.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/rtc_base/byte_order.h')
-rw-r--r-- | third_party/libwebrtc/rtc_base/byte_order.h | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/byte_order.h b/third_party/libwebrtc/rtc_base/byte_order.h new file mode 100644 index 0000000000..382511daeb --- /dev/null +++ b/third_party/libwebrtc/rtc_base/byte_order.h @@ -0,0 +1,214 @@ +/* + * Copyright 2004 The WebRTC Project Authors. All rights reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE 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. + */ + +#ifndef RTC_BASE_BYTE_ORDER_H_ +#define RTC_BASE_BYTE_ORDER_H_ + +#include <stdint.h> + +#include <cstring> + +#if defined(WEBRTC_POSIX) && !defined(__native_client__) +#include <arpa/inet.h> +#endif + +#include "rtc_base/system/arch.h" + +#if defined(WEBRTC_MAC) +#include <libkern/OSByteOrder.h> + +#define htobe16(v) OSSwapHostToBigInt16(v) +#define htobe32(v) OSSwapHostToBigInt32(v) +#define htobe64(v) OSSwapHostToBigInt64(v) +#define be16toh(v) OSSwapBigToHostInt16(v) +#define be32toh(v) OSSwapBigToHostInt32(v) +#define be64toh(v) OSSwapBigToHostInt64(v) + +#define htole16(v) OSSwapHostToLittleInt16(v) +#define htole32(v) OSSwapHostToLittleInt32(v) +#define htole64(v) OSSwapHostToLittleInt64(v) +#define le16toh(v) OSSwapLittleToHostInt16(v) +#define le32toh(v) OSSwapLittleToHostInt32(v) +#define le64toh(v) OSSwapLittleToHostInt64(v) + +#elif defined(WEBRTC_WIN) || defined(__native_client__) + +#if defined(WEBRTC_WIN) +#include <stdlib.h> +#include <winsock2.h> +#else +#include <netinet/in.h> +#endif // defined(WEBRTC_WIN) + +#if defined(WEBRTC_ARCH_LITTLE_ENDIAN) +#define htobe16(v) htons(v) +#define htobe32(v) htonl(v) +#define be16toh(v) ntohs(v) +#define be32toh(v) ntohl(v) +#define htole16(v) (v) +#define htole32(v) (v) +#define htole64(v) (v) +#define le16toh(v) (v) +#define le32toh(v) (v) +#define le64toh(v) (v) +#if defined(WEBRTC_WIN) +#define htobe64(v) _byteswap_uint64(v) +#define be64toh(v) _byteswap_uint64(v) +#endif // defined(WEBRTC_WIN) +#if defined(__native_client__) +#define htobe64(v) __builtin_bswap64(v) +#define be64toh(v) __builtin_bswap64(v) +#endif // defined(__native_client__) + +#elif defined(WEBRTC_ARCH_BIG_ENDIAN) +#define htobe16(v) (v) +#define htobe32(v) (v) +#define be16toh(v) (v) +#define be32toh(v) (v) +#define htole16(v) __builtin_bswap16(v) +#define htole32(v) __builtin_bswap32(v) +#define htole64(v) __builtin_bswap64(v) +#define le16toh(v) __builtin_bswap16(v) +#define le32toh(v) __builtin_bswap32(v) +#define le64toh(v) __builtin_bswap64(v) +#if defined(WEBRTC_WIN) +#define htobe64(v) (v) +#define be64toh(v) (v) +#endif // defined(WEBRTC_WIN) +#if defined(__native_client__) +#define htobe64(v) (v) +#define be64toh(v) (v) +#endif // defined(__native_client__) +#else +#error WEBRTC_ARCH_BIG_ENDIAN or WEBRTC_ARCH_LITTLE_ENDIAN must be defined. +#endif // defined(WEBRTC_ARCH_LITTLE_ENDIAN) + +#elif defined(WEBRTC_BSD) && !defined(__OpenBSD__) +#include <sys/endian.h> +#elif defined(WEBRTC_POSIX) +#include <endian.h> +#else +#error "Missing byte order functions for this arch." +#endif // defined(WEBRTC_MAC) + +namespace rtc { + +// Reading and writing of little and big-endian numbers from memory + +inline void Set8(void* memory, size_t offset, uint8_t v) { + static_cast<uint8_t*>(memory)[offset] = v; +} + +inline uint8_t Get8(const void* memory, size_t offset) { + return static_cast<const uint8_t*>(memory)[offset]; +} + +inline void SetBE16(void* memory, uint16_t v) { + uint16_t val = htobe16(v); + memcpy(memory, &val, sizeof(val)); +} + +inline void SetBE32(void* memory, uint32_t v) { + uint32_t val = htobe32(v); + memcpy(memory, &val, sizeof(val)); +} + +inline void SetBE64(void* memory, uint64_t v) { + uint64_t val = htobe64(v); + memcpy(memory, &val, sizeof(val)); +} + +inline uint16_t GetBE16(const void* memory) { + uint16_t val; + memcpy(&val, memory, sizeof(val)); + return be16toh(val); +} + +inline uint32_t GetBE32(const void* memory) { + uint32_t val; + memcpy(&val, memory, sizeof(val)); + return be32toh(val); +} + +inline uint64_t GetBE64(const void* memory) { + uint64_t val; + memcpy(&val, memory, sizeof(val)); + return be64toh(val); +} + +inline void SetLE16(void* memory, uint16_t v) { + uint16_t val = htole16(v); + memcpy(memory, &val, sizeof(val)); +} + +inline void SetLE32(void* memory, uint32_t v) { + uint32_t val = htole32(v); + memcpy(memory, &val, sizeof(val)); +} + +inline void SetLE64(void* memory, uint64_t v) { + uint64_t val = htole64(v); + memcpy(memory, &val, sizeof(val)); +} + +inline uint16_t GetLE16(const void* memory) { + uint16_t val; + memcpy(&val, memory, sizeof(val)); + return le16toh(val); +} + +inline uint32_t GetLE32(const void* memory) { + uint32_t val; + memcpy(&val, memory, sizeof(val)); + return le32toh(val); +} + +inline uint64_t GetLE64(const void* memory) { + uint64_t val; + memcpy(&val, memory, sizeof(val)); + return le64toh(val); +} + +// Check if the current host is big endian. +inline bool IsHostBigEndian() { +#if defined(WEBRTC_ARCH_BIG_ENDIAN) + return true; +#else + return false; +#endif +} + +inline uint16_t HostToNetwork16(uint16_t n) { + return htobe16(n); +} + +inline uint32_t HostToNetwork32(uint32_t n) { + return htobe32(n); +} + +inline uint64_t HostToNetwork64(uint64_t n) { + return htobe64(n); +} + +inline uint16_t NetworkToHost16(uint16_t n) { + return be16toh(n); +} + +inline uint32_t NetworkToHost32(uint32_t n) { + return be32toh(n); +} + +inline uint64_t NetworkToHost64(uint64_t n) { + return be64toh(n); +} + +} // namespace rtc + +#endif // RTC_BASE_BYTE_ORDER_H_ |