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Diffstat (limited to 'modules/brotli/dec/port.h')
| -rw-r--r-- | modules/brotli/dec/port.h | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/modules/brotli/dec/port.h b/modules/brotli/dec/port.h deleted file mode 100644 index 19b457c75..000000000 --- a/modules/brotli/dec/port.h +++ /dev/null @@ -1,252 +0,0 @@ -/* Copyright 2015 Google Inc. All Rights Reserved. - - Distributed under MIT license. - See file LICENSE for detail or copy at https://opensource.org/licenses/MIT -*/ - -/* Macros for compiler / platform specific features and build options. - - Build options are: - * BROTLI_BUILD_32_BIT disables 64-bit optimizations - * BROTLI_BUILD_64_BIT forces to use 64-bit optimizations - * BROTLI_BUILD_BIG_ENDIAN forces to use big-endian optimizations - * BROTLI_BUILD_ENDIAN_NEUTRAL disables endian-aware optimizations - * BROTLI_BUILD_LITTLE_ENDIAN forces to use little-endian optimizations - * BROTLI_BUILD_MODERN_COMPILER forces to use modern compilers built-ins, - features and attributes - * BROTLI_BUILD_PORTABLE disables dangerous optimizations, like unaligned - read and overlapping memcpy; this reduces decompression speed by 5% - * BROTLI_DEBUG dumps file name and line number when decoder detects stream - or memory error - * BROTLI_ENABLE_LOG enables asserts and dumps various state information - */ - -#ifndef BROTLI_DEC_PORT_H_ -#define BROTLI_DEC_PORT_H_ - -#if defined(BROTLI_ENABLE_LOG) || defined(BROTLI_DEBUG) -#include <assert.h> -#include <stdio.h> -#endif - -/* Compatibility with non-clang compilers. */ -#ifndef __has_builtin -#define __has_builtin(x) 0 -#endif - -#ifndef __has_attribute -#define __has_attribute(x) 0 -#endif - -#ifndef __has_feature -#define __has_feature(x) 0 -#endif - -#if defined(__arm__) || defined(__thumb__) || \ - defined(_M_ARM) || defined(_M_ARMT) -#define BROTLI_TARGET_ARM -#if (defined(__ARM_ARCH) && (__ARM_ARCH >= 7)) || \ - (defined(M_ARM) && (M_ARM >= 7)) -#define BROTLI_TARGET_ARMV7 -#endif /* ARMv7 */ -#if defined(__aarch64__) -#define BROTLI_TARGET_ARMV8 -#endif /* ARMv8 */ -#endif /* ARM */ - -#if defined(__i386) || defined(_M_IX86) -#define BROTLI_TARGET_X86 -#endif - -#if defined(__x86_64__) || defined(_M_X64) -#define BROTLI_TARGET_X64 -#endif - -#if defined(__PPC64__) -#define BROTLI_TARGET_POWERPC64 -#endif - -#if defined(__GNUC__) && defined(__GNUC_MINOR__) -#define BROTLI_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) -#else -#define BROTLI_GCC_VERSION 0 -#endif - -#if defined(__ICC) -#define BROTLI_ICC_VERSION __ICC -#else -#define BROTLI_ICC_VERSION 0 -#endif - -#if defined(BROTLI_BUILD_MODERN_COMPILER) -#define BROTLI_MODERN_COMPILER 1 -#elif (BROTLI_GCC_VERSION > 300) || (BROTLI_ICC_VERSION >= 1600) -#define BROTLI_MODERN_COMPILER 1 -#else -#define BROTLI_MODERN_COMPILER 0 -#endif - -#ifdef BROTLI_BUILD_PORTABLE -#define BROTLI_ALIGNED_READ (!!1) -#elif defined(BROTLI_TARGET_X86) || defined(BROTLI_TARGET_X64) || \ - defined(BROTLI_TARGET_ARMV7) || defined(BROTLI_TARGET_ARMV8) -/* Allow unaligned read only for whitelisted CPUs. */ -#define BROTLI_ALIGNED_READ (!!0) -#else -#define BROTLI_ALIGNED_READ (!!1) -#endif - -/* Define "PREDICT_TRUE" and "PREDICT_FALSE" macros for capable compilers. - -To apply compiler hint, enclose the branching condition into macros, like this: - - if (PREDICT_TRUE(zero == 0)) { - // main execution path - } else { - // compiler should place this code outside of main execution path - } - -OR: - - if (PREDICT_FALSE(something_rare_or_unexpected_happens)) { - // compiler should place this code outside of main execution path - } - -*/ -#if BROTLI_MODERN_COMPILER || __has_builtin(__builtin_expect) -#define PREDICT_TRUE(x) (__builtin_expect(!!(x), 1)) -#define PREDICT_FALSE(x) (__builtin_expect(x, 0)) -#else -#define PREDICT_FALSE(x) (x) -#define PREDICT_TRUE(x) (x) -#endif - -/* IS_CONSTANT macros returns true for compile-time constant expressions. */ -#if BROTLI_MODERN_COMPILER || __has_builtin(__builtin_constant_p) -#define IS_CONSTANT(x) (!!__builtin_constant_p(x)) -#else -#define IS_CONSTANT(x) (!!0) -#endif - -#if BROTLI_MODERN_COMPILER || __has_attribute(always_inline) -#define ATTRIBUTE_ALWAYS_INLINE __attribute__ ((always_inline)) -#else -#define ATTRIBUTE_ALWAYS_INLINE -#endif - -#if defined(_WIN32) || defined(__CYGWIN__) -#define ATTRIBUTE_VISIBILITY_HIDDEN -#elif BROTLI_MODERN_COMPILER || __has_attribute(visibility) -#define ATTRIBUTE_VISIBILITY_HIDDEN __attribute__ ((visibility ("hidden"))) -#else -#define ATTRIBUTE_VISIBILITY_HIDDEN -#endif - -#ifndef BROTLI_INTERNAL -#define BROTLI_INTERNAL ATTRIBUTE_VISIBILITY_HIDDEN -#endif - -#ifndef _MSC_VER -#if defined(__cplusplus) || !defined(__STRICT_ANSI__) || \ - __STDC_VERSION__ >= 199901L -#define BROTLI_INLINE inline ATTRIBUTE_ALWAYS_INLINE -#else -#define BROTLI_INLINE -#endif -#else /* _MSC_VER */ -#define BROTLI_INLINE __forceinline -#endif /* _MSC_VER */ - -#ifdef BROTLI_ENABLE_LOG -#define BROTLI_DCHECK(x) assert(x) -#define BROTLI_LOG(x) printf x -#else -#define BROTLI_DCHECK(x) -#define BROTLI_LOG(x) -#endif - -#if defined(BROTLI_DEBUG) || defined(BROTLI_ENABLE_LOG) -static inline void BrotliDump(const char* f, int l, const char* fn) { - fprintf(stderr, "%s:%d (%s)\n", f, l, fn); - fflush(stderr); -} -#define BROTLI_DUMP() BrotliDump(__FILE__, __LINE__, __FUNCTION__) -#else -#define BROTLI_DUMP() (void)(0) -#endif - -#if defined(BROTLI_BUILD_64_BIT) -#define BROTLI_64_BITS 1 -#elif defined(BROTLI_BUILD_32_BIT) -#define BROTLI_64_BITS 0 -#elif defined(BROTLI_TARGET_X64) || defined(BROTLI_TARGET_ARMV8) || \ - defined(BROTLI_TARGET_POWERPC64) -#define BROTLI_64_BITS 1 -#else -#define BROTLI_64_BITS 0 -#endif - -#if defined(BROTLI_BUILD_BIG_ENDIAN) -#define BROTLI_LITTLE_ENDIAN 0 -#define BROTLI_BIG_ENDIAN 1 -#elif defined(BROTLI_BUILD_LITTLE_ENDIAN) -#define BROTLI_LITTLE_ENDIAN 1 -#define BROTLI_BIG_ENDIAN 0 -#elif defined(BROTLI_BUILD_ENDIAN_NEUTRAL) -#define BROTLI_LITTLE_ENDIAN 0 -#define BROTLI_BIG_ENDIAN 0 -#elif defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) -#define BROTLI_LITTLE_ENDIAN 1 -#define BROTLI_BIG_ENDIAN 0 -#elif defined(_WIN32) -/* Win32 can currently always be assumed to be little endian */ -#define BROTLI_LITTLE_ENDIAN 1 -#define BROTLI_BIG_ENDIAN 0 -#else -#if (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)) -#define BROTLI_BIG_ENDIAN 1 -#else -#define BROTLI_BIG_ENDIAN 0 -#endif -#define BROTLI_LITTLE_ENDIAN 0 -#endif - -#if BROTLI_MODERN_COMPILER || __has_attribute(noinline) -#define BROTLI_NOINLINE __attribute__((noinline)) -#else -#define BROTLI_NOINLINE -#endif - -#define BROTLI_REPEAT(N, X) { \ - if ((N & 1) != 0) {X;} \ - if ((N & 2) != 0) {X; X;} \ - if ((N & 4) != 0) {X; X; X; X;} \ -} - -#if BROTLI_MODERN_COMPILER || defined(__llvm__) -#if defined(BROTLI_TARGET_ARMV7) -static BROTLI_INLINE unsigned BrotliRBit(unsigned input) { - unsigned output; - __asm__("rbit %0, %1\n" : "=r"(output) : "r"(input)); - return output; -} -#define BROTLI_RBIT(x) BrotliRBit(x) -#endif /* armv7 */ -#endif /* gcc || clang */ - -#if defined(BROTLI_TARGET_ARM) -#define BROTLI_HAS_UBFX (!!1) -#else -#define BROTLI_HAS_UBFX (!!0) -#endif - -#define BROTLI_ALLOC(S, L) S->alloc_func(S->memory_manager_opaque, L) - -#define BROTLI_FREE(S, X) { \ - S->free_func(S->memory_manager_opaque, X); \ - X = NULL; \ -} - -#define BROTLI_UNUSED(X) (void)(X) - -#endif /* BROTLI_DEC_PORT_H_ */ |