/***************************************************************************** * osdep.h: platform-specific code ***************************************************************************** * Copyright (C) 2007-2016 x264 project * * Authors: Loren Merritt * Laurent Aimar * Henrik Gramner * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. * * This program is also available under a commercial proprietary license. * For more information, contact us at licensing@x264.com. *****************************************************************************/ #ifndef X264_OSDEP_H #define X264_OSDEP_H #define _LARGEFILE_SOURCE 1 #define _FILE_OFFSET_BITS 64 #include #include #include #include #include "config.h" #ifdef __INTEL_COMPILER #include #else #include #endif #if !HAVE_LOG2F #define log2f(x) (logf(x)/0.693147180559945f) #define log2(x) (log(x)/0.693147180559945) #endif #ifdef _MSC_VER #define inline __inline #define strcasecmp _stricmp #define strncasecmp _strnicmp #define strtok_r strtok_s #define S_ISREG(x) (((x) & S_IFMT) == S_IFREG) #if _MSC_VER < 1900 #define snprintf _snprintf #endif #endif #if !defined(va_copy) && defined(__INTEL_COMPILER) #define va_copy(dst, src) ((dst) = (src)) #endif #if !defined(isfinite) && (SYS_OPENBSD || SYS_SunOS) #define isfinite finite #endif #ifdef _WIN32 #ifndef strtok_r #define strtok_r(str,delim,save) strtok(str,delim) #endif #define utf8_to_utf16( utf8, utf16 )\ MultiByteToWideChar( CP_UTF8, MB_ERR_INVALID_CHARS, utf8, -1, utf16, sizeof(utf16)/sizeof(wchar_t) ) FILE *x264_fopen( const char *filename, const char *mode ); int x264_rename( const char *oldname, const char *newname ); #define x264_struct_stat struct _stati64 #define x264_fstat _fstati64 int x264_stat( const char *path, x264_struct_stat *buf ); int x264_vfprintf( FILE *stream, const char *format, va_list arg ); int x264_is_pipe( const char *path ); #else #define x264_fopen fopen #define x264_rename rename #define x264_struct_stat struct stat #define x264_fstat fstat #define x264_stat stat #define x264_vfprintf vfprintf #define x264_is_pipe(x) 0 #endif #ifdef _MSC_VER #define DECLARE_ALIGNED( var, n ) __declspec(align(n)) var #else #define DECLARE_ALIGNED( var, n ) var __attribute__((aligned(n))) #endif #define ALIGNED_32( var ) DECLARE_ALIGNED( var, 32 ) #define ALIGNED_16( var ) DECLARE_ALIGNED( var, 16 ) #define ALIGNED_8( var ) DECLARE_ALIGNED( var, 8 ) #define ALIGNED_4( var ) DECLARE_ALIGNED( var, 4 ) // ARM compiliers don't reliably align stack variables // - EABI requires only 8 byte stack alignment to be maintained // - gcc can't align stack variables to more even if the stack were to be correctly aligned outside the function // - armcc can't either, but is nice enough to actually tell you so // - Apple gcc only maintains 4 byte alignment // - llvm can align the stack, but only in svn and (unrelated) it exposes bugs in all released GNU binutils... #define ALIGNED_ARRAY_EMU( mask, type, name, sub1, ... )\ uint8_t name##_u [sizeof(type sub1 __VA_ARGS__) + mask]; \ type (*name) __VA_ARGS__ = (void*)((intptr_t)(name##_u+mask) & ~mask) #if ARCH_ARM && SYS_MACOSX #define ALIGNED_ARRAY_8( ... ) ALIGNED_ARRAY_EMU( 7, __VA_ARGS__ ) #else #define ALIGNED_ARRAY_8( type, name, sub1, ... )\ ALIGNED_8( type name sub1 __VA_ARGS__ ) #endif #if ARCH_ARM #define ALIGNED_ARRAY_16( ... ) ALIGNED_ARRAY_EMU( 15, __VA_ARGS__ ) #else #define ALIGNED_ARRAY_16( type, name, sub1, ... )\ ALIGNED_16( type name sub1 __VA_ARGS__ ) #endif #define EXPAND(x) x #if STACK_ALIGNMENT >= 32 #define ALIGNED_ARRAY_32( type, name, sub1, ... )\ ALIGNED_32( type name sub1 __VA_ARGS__ ) #else #define ALIGNED_ARRAY_32( ... ) EXPAND( ALIGNED_ARRAY_EMU( 31, __VA_ARGS__ ) ) #endif #define ALIGNED_ARRAY_64( ... ) EXPAND( ALIGNED_ARRAY_EMU( 63, __VA_ARGS__ ) ) /* For AVX2 */ #if ARCH_X86 || ARCH_X86_64 #define NATIVE_ALIGN 32 #define ALIGNED_N ALIGNED_32 #define ALIGNED_ARRAY_N ALIGNED_ARRAY_32 #else #define NATIVE_ALIGN 16 #define ALIGNED_N ALIGNED_16 #define ALIGNED_ARRAY_N ALIGNED_ARRAY_16 #endif #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0) #define UNUSED __attribute__((unused)) #define ALWAYS_INLINE __attribute__((always_inline)) inline #define NOINLINE __attribute__((noinline)) #define MAY_ALIAS __attribute__((may_alias)) #define x264_constant_p(x) __builtin_constant_p(x) #define x264_nonconstant_p(x) (!__builtin_constant_p(x)) #else #ifdef _MSC_VER #define ALWAYS_INLINE __forceinline #define NOINLINE __declspec(noinline) #else #define ALWAYS_INLINE inline #define NOINLINE #endif #define UNUSED #define MAY_ALIAS #define x264_constant_p(x) 0 #define x264_nonconstant_p(x) 0 #endif /* threads */ #if HAVE_BEOSTHREAD #include #define x264_pthread_t thread_id static inline int x264_pthread_create( x264_pthread_t *t, void *a, void *(*f)(void *), void *d ) { *t = spawn_thread( f, "", 10, d ); if( *t < B_NO_ERROR ) return -1; resume_thread( *t ); return 0; } #define x264_pthread_join(t,s) { long tmp; \ wait_for_thread(t,(s)?(long*)(s):&tmp); } #elif HAVE_POSIXTHREAD #include #define x264_pthread_t pthread_t #define x264_pthread_create pthread_create #define x264_pthread_join pthread_join #define x264_pthread_mutex_t pthread_mutex_t #define x264_pthread_mutex_init pthread_mutex_init #define x264_pthread_mutex_destroy pthread_mutex_destroy #define x264_pthread_mutex_lock pthread_mutex_lock #define x264_pthread_mutex_unlock pthread_mutex_unlock #define x264_pthread_cond_t pthread_cond_t #define x264_pthread_cond_init pthread_cond_init #define x264_pthread_cond_destroy pthread_cond_destroy #define x264_pthread_cond_broadcast pthread_cond_broadcast #define x264_pthread_cond_wait pthread_cond_wait #define x264_pthread_attr_t pthread_attr_t #define x264_pthread_attr_init pthread_attr_init #define x264_pthread_attr_destroy pthread_attr_destroy #define x264_pthread_num_processors_np pthread_num_processors_np #define X264_PTHREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER #elif HAVE_WIN32THREAD #include "win32thread.h" #else #define x264_pthread_t int #define x264_pthread_create(t,u,f,d) 0 #define x264_pthread_join(t,s) #endif //HAVE_*THREAD #if !HAVE_POSIXTHREAD && !HAVE_WIN32THREAD #define x264_pthread_mutex_t int #define x264_pthread_mutex_init(m,f) 0 #define x264_pthread_mutex_destroy(m) #define x264_pthread_mutex_lock(m) #define x264_pthread_mutex_unlock(m) #define x264_pthread_cond_t int #define x264_pthread_cond_init(c,f) 0 #define x264_pthread_cond_destroy(c) #define x264_pthread_cond_broadcast(c) #define x264_pthread_cond_wait(c,m) #define x264_pthread_attr_t int #define x264_pthread_attr_init(a) 0 #define x264_pthread_attr_destroy(a) #define X264_PTHREAD_MUTEX_INITIALIZER 0 #endif #if HAVE_WIN32THREAD || PTW32_STATIC_LIB int x264_threading_init( void ); #else #define x264_threading_init() 0 #endif static ALWAYS_INLINE int x264_pthread_fetch_and_add( int *val, int add, x264_pthread_mutex_t *mutex ) { #if HAVE_THREAD #if defined(__GNUC__) && (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ > 0) && ARCH_X86 return __sync_fetch_and_add( val, add ); #else x264_pthread_mutex_lock( mutex ); int res = *val; *val += add; x264_pthread_mutex_unlock( mutex ); return res; #endif #else int res = *val; *val += add; return res; #endif } #define WORD_SIZE sizeof(void*) #define asm __asm__ #if WORDS_BIGENDIAN #define endian_fix(x) (x) #define endian_fix64(x) (x) #define endian_fix32(x) (x) #define endian_fix16(x) (x) #else #if HAVE_X86_INLINE_ASM && HAVE_MMX static ALWAYS_INLINE uint32_t endian_fix32( uint32_t x ) { asm("bswap %0":"+r"(x)); return x; } #elif defined(__GNUC__) && HAVE_ARMV6 static ALWAYS_INLINE uint32_t endian_fix32( uint32_t x ) { asm("rev %0, %0":"+r"(x)); return x; } #else static ALWAYS_INLINE uint32_t endian_fix32( uint32_t x ) { return (x<<24) + ((x<<8)&0xff0000) + ((x>>8)&0xff00) + (x>>24); } #endif #if HAVE_X86_INLINE_ASM && ARCH_X86_64 static ALWAYS_INLINE uint64_t endian_fix64( uint64_t x ) { asm("bswap %0":"+r"(x)); return x; } #else static ALWAYS_INLINE uint64_t endian_fix64( uint64_t x ) { return endian_fix32(x>>32) + ((uint64_t)endian_fix32(x)<<32); } #endif static ALWAYS_INLINE intptr_t endian_fix( intptr_t x ) { return WORD_SIZE == 8 ? endian_fix64(x) : endian_fix32(x); } static ALWAYS_INLINE uint16_t endian_fix16( uint16_t x ) { return (x<<8)|(x>>8); } #endif /* For values with 4 bits or less. */ static int ALWAYS_INLINE x264_ctz_4bit( uint32_t x ) { static uint8_t lut[16] = {4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0}; return lut[x]; } #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 3) #define x264_clz(x) __builtin_clz(x) #define x264_ctz(x) __builtin_ctz(x) #else static int ALWAYS_INLINE x264_clz( uint32_t x ) { static uint8_t lut[16] = {4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0}; int y, z = (((x >> 16) - 1) >> 27) & 16; x >>= z^16; z += y = ((x - 0x100) >> 28) & 8; x >>= y^8; z += y = ((x - 0x10) >> 29) & 4; x >>= y^4; return z + lut[x]; } static int ALWAYS_INLINE x264_ctz( uint32_t x ) { static uint8_t lut[16] = {4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0}; int y, z = (((x & 0xffff) - 1) >> 27) & 16; x >>= z; z += y = (((x & 0xff) - 1) >> 28) & 8; x >>= y; z += y = (((x & 0xf) - 1) >> 29) & 4; x >>= y; return z + lut[x&0xf]; } #endif #if HAVE_X86_INLINE_ASM && HAVE_MMX /* Don't use __builtin_prefetch; even as recent as 4.3.4, GCC seems incapable of * using complex address modes properly unless we use inline asm. */ static ALWAYS_INLINE void x264_prefetch( void *p ) { asm volatile( "prefetcht0 %0"::"m"(*(uint8_t*)p) ); } /* We require that prefetch not fault on invalid reads, so we only enable it on * known architectures. */ #elif defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 1) &&\ (ARCH_X86 || ARCH_X86_64 || ARCH_ARM || ARCH_PPC) #define x264_prefetch(x) __builtin_prefetch(x) #else #define x264_prefetch(x) #endif #if HAVE_POSIXTHREAD #if SYS_WINDOWS #define x264_lower_thread_priority(p)\ {\ x264_pthread_t handle = pthread_self();\ struct sched_param sp;\ int policy = SCHED_OTHER;\ pthread_getschedparam( handle, &policy, &sp );\ sp.sched_priority -= p;\ pthread_setschedparam( handle, policy, &sp );\ } #elif SYS_HAIKU #include #define x264_lower_thread_priority(p)\ { UNUSED status_t nice_ret = set_thread_priority( find_thread( NULL ), B_LOW_PRIORITY ); } #else #include #define x264_lower_thread_priority(p) { UNUSED int nice_ret = nice(p); } #endif /* SYS_WINDOWS */ #elif HAVE_WIN32THREAD #define x264_lower_thread_priority(p) SetThreadPriority( GetCurrentThread(), X264_MAX( -2, -p ) ) #else #define x264_lower_thread_priority(p) #endif static inline int x264_is_regular_file( FILE *filehandle ) { x264_struct_stat file_stat; if( x264_fstat( fileno( filehandle ), &file_stat ) ) return 1; return S_ISREG( file_stat.st_mode ); } static inline int x264_is_regular_file_path( const char *filename ) { x264_struct_stat file_stat; if( x264_stat( filename, &file_stat ) ) return !x264_is_pipe( filename ); return S_ISREG( file_stat.st_mode ); } #endif /* X264_OSDEP_H */