common/osdep.h

   1 /*****************************************************************************
   2  * osdep.h: h264 encoder
   3  *****************************************************************************
   4  * Copyright (C) 2007-2008 x264 project
   5  *
   6  * Authors: Loren Merritt <lorenm@u.washington.edu>
   7  *          Laurent Aimar <fenrir@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 #ifndef X264_OSDEP_H
  25 #define X264_OSDEP_H
  26
  27 #define _LARGEFILE_SOURCE 1
  28 #define _FILE_OFFSET_BITS 64
  29 #include <stdio.h>
  30
  31 #ifdef HAVE_STDINT_H
  32 #include <stdint.h>
  33 #else
  34 #include <inttypes.h>
  35 #endif
  36
  37 #ifdef _WIN32
  38 #include <io.h>    // _setmode()
  39 #include <fcntl.h> // _O_BINARY
  40 #endif
  41
  42 #ifdef _MSC_VER
  43 #define inline __inline
  44 #define strcasecmp stricmp
  45 #define strncasecmp strnicmp
  46 #define snprintf _snprintf
  47 #define fseek _fseeki64
  48 #define ftell _ftelli64
  49 #define isfinite _finite
  50 #define _CRT_SECURE_NO_DEPRECATE
  51 #define X264_VERSION "" // no configure script for msvc
  52 #endif
  53
  54 #if defined(SYS_OPENBSD) || defined(SYS_SunOS)
  55 #define isfinite finite
  56 #endif
  57 #if defined(_MSC_VER) || defined(SYS_SunOS) || defined(SYS_MACOSX)
  58 #define sqrtf sqrt
  59 #endif
  60 #ifdef _WIN32
  61 #define rename(src,dst) (unlink(dst), rename(src,dst)) // POSIX says that rename() removes the destination, but win32 doesn't.
  62 #ifndef strtok_r
  63 #define strtok_r(str,delim,save) strtok(str,delim)
  64 #endif
  65 #endif
  66
  67 #ifdef _MSC_VER
  68 #define DECLARE_ALIGNED( var, n ) __declspec(align(n)) var
  69 #else
  70 #define DECLARE_ALIGNED( var, n ) var __attribute__((aligned(n)))
  71 #endif
  72 #define DECLARE_ALIGNED_16( var ) DECLARE_ALIGNED( var, 16 )
  73 #define DECLARE_ALIGNED_8( var )  DECLARE_ALIGNED( var, 8 )
  74 #define DECLARE_ALIGNED_4( var )  DECLARE_ALIGNED( var, 4 )
  75
  76 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
  77 #define UNUSED __attribute__((unused))
  78 #define ALWAYS_INLINE __attribute__((always_inline)) inline
  79 #define NOINLINE __attribute__((noinline))
  80 #else
  81 #define UNUSED
  82 #define ALWAYS_INLINE inline
  83 #define NOINLINE
  84 #endif
  85
  86 /* threads */
  87 #if defined(SYS_BEOS)
  88 #include <kernel/OS.h>
  89 #define x264_pthread_t               thread_id
  90 #define x264_pthread_create(t,u,f,d) { *(t)=spawn_thread(f,"",10,d); \
  91                                        resume_thread(*(t)); }
  92 #define x264_pthread_join(t,s)       { long tmp; \
  93                                        wait_for_thread(t,(s)?(long*)(s):&tmp); }
  94 #ifndef usleep
  95 #define usleep(t)                    snooze(t)
  96 #endif
  97 #define HAVE_PTHREAD 1
  98
  99 #elif defined(HAVE_PTHREAD)
 100 #include <pthread.h>
 101 #define USE_REAL_PTHREAD
 102
 103 #else
 104 #define x264_pthread_t               int
 105 #define x264_pthread_create(t,u,f,d)
 106 #define x264_pthread_join(t,s)
 107 #endif //SYS_*
 108
 109 #ifdef USE_REAL_PTHREAD
 110 #define x264_pthread_t               pthread_t
 111 #define x264_pthread_create          pthread_create
 112 #define x264_pthread_join            pthread_join
 113 #define x264_pthread_mutex_t         pthread_mutex_t
 114 #define x264_pthread_mutex_init      pthread_mutex_init
 115 #define x264_pthread_mutex_destroy   pthread_mutex_destroy
 116 #define x264_pthread_mutex_lock      pthread_mutex_lock
 117 #define x264_pthread_mutex_unlock    pthread_mutex_unlock
 118 #define x264_pthread_cond_t          pthread_cond_t
 119 #define x264_pthread_cond_init       pthread_cond_init
 120 #define x264_pthread_cond_destroy    pthread_cond_destroy
 121 #define x264_pthread_cond_broadcast  pthread_cond_broadcast
 122 #define x264_pthread_cond_wait       pthread_cond_wait
 123 #else
 124 #define x264_pthread_mutex_t         int
 125 #define x264_pthread_mutex_init(m,f)
 126 #define x264_pthread_mutex_destroy(m)
 127 #define x264_pthread_mutex_lock(m)
 128 #define x264_pthread_mutex_unlock(m)
 129 #define x264_pthread_cond_t          int
 130 #define x264_pthread_cond_init(c,f)
 131 #define x264_pthread_cond_destroy(c)
 132 #define x264_pthread_cond_broadcast(c)
 133 #define x264_pthread_cond_wait(c,m)
 134 #endif
 135
 136 #define WORD_SIZE sizeof(void*)
 137
 138 #if !defined(_WIN64) && !defined(__LP64__)
 139 #if defined(_MSC_VER) || defined(__INTEL_COMPILER)
 140 #define BROKEN_STACK_ALIGNMENT /* define it if stack is not mod16 */
 141 #endif
 142 #endif
 143
 144 #ifdef WORDS_BIGENDIAN
 145 #define endian_fix(x) (x)
 146 #define endian_fix32(x) (x)
 147 #elif defined(__GNUC__) && defined(HAVE_MMX)
 148 static ALWAYS_INLINE uint32_t endian_fix32( uint32_t x )
 149 {
 150     asm("bswap %0":"+r"(x));
 151     return x;
 152 }
 153 static ALWAYS_INLINE intptr_t endian_fix( intptr_t x )
 154 {
 155     asm("bswap %0":"+r"(x));
 156     return x;
 157 }
 158 #else
 159 static ALWAYS_INLINE uint32_t endian_fix32( uint32_t x )
 160 {
 161     return (x<<24) + ((x<<8)&0xff0000) + ((x>>8)&0xff00) + (x>>24);
 162 }
 163 static ALWAYS_INLINE intptr_t endian_fix( intptr_t x )
 164 {
 165     if( WORD_SIZE == 8 )
 166         return endian_fix32(x>>32) + ((uint64_t)endian_fix32(x)<<32);
 167     else
 168         return endian_fix32(x);
 169 }
 170 #endif
 171
 172 #ifdef __GNUC__
 173 #define x264_clz(x) __builtin_clz(x)
 174 #else
 175 static int ALWAYS_INLINE x264_clz( uint32_t x )
 176 {
 177     static uint8_t lut[16] = {4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0};
 178     int y, z = ((x - 0x10000) >> 27) & 16;
 179     x >>= z^16;
 180     z += y = ((x - 0x100) >> 28) & 8;
 181     x >>= y^8;
 182     z += y = ((x - 0x10) >> 29) & 4;
 183     x >>= y^4;
 184     return z + lut[x];
 185 }
 186 #endif
 187
 188 #endif /* X264_OSDEP_H */