1 /*****************************************************************************
2 * osdep.h: h264 encoder
3 *****************************************************************************
4 * Copyright (C) 2007-2008 x264 project
6 * Authors: Loren Merritt <lorenm@u.washington.edu>
7 * Laurent Aimar <fenrir@via.ecp.fr>
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.
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.
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 *****************************************************************************/
27 #define _LARGEFILE_SOURCE 1
28 #define _FILE_OFFSET_BITS 64
38 #include <io.h> // _setmode()
39 #include <fcntl.h> // _O_BINARY
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 strtok_r strtok_s
51 #define _CRT_SECURE_NO_DEPRECATE
52 #define X264_VERSION "" // no configure script for msvc
55 #if (defined(SYS_OPENBSD) && !defined(isfinite)) || defined(SYS_SunOS)
56 #define isfinite finite
59 #define rename(src,dst) (unlink(dst), rename(src,dst)) // POSIX says that rename() removes the destination, but win32 doesn't.
61 #define strtok_r(str,delim,save) strtok(str,delim)
66 #define DECLARE_ALIGNED( var, n ) __declspec(align(n)) var
68 #define DECLARE_ALIGNED( var, n ) var __attribute__((aligned(n)))
70 #define ALIGNED_16( var ) DECLARE_ALIGNED( var, 16 )
71 #define ALIGNED_8( var ) DECLARE_ALIGNED( var, 8 )
72 #define ALIGNED_4( var ) DECLARE_ALIGNED( var, 4 )
74 // current arm compilers only maintain 8-byte stack alignment
75 // and cannot align stack variables to more than 8-bytes
77 #define ALIGNED_ARRAY_16( type, name, sub1, ... )\
78 ALIGNED_8( uint8_t name##_8 [sizeof(type sub1 __VA_ARGS__) + 8] );\
79 type (*name) __VA_ARGS__ = (void*)(name##_8 + ((intptr_t)name##_8 & 8))
81 #define ALIGNED_ARRAY_16( type, name, sub1, ... )\
82 ALIGNED_16( type name sub1 __VA_ARGS__ )
85 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
86 #define UNUSED __attribute__((unused))
87 #define ALWAYS_INLINE __attribute__((always_inline)) inline
88 #define NOINLINE __attribute__((noinline))
89 #define x264_constant_p(x) __builtin_constant_p(x)
92 #define ALWAYS_INLINE inline
94 #define x264_constant_p(x) 0
99 #include <kernel/OS.h>
100 #define x264_pthread_t thread_id
101 static inline int x264_pthread_create( x264_pthread_t *t, void *a, void *(*f)(void *), void *d )
103 *t = spawn_thread( f, "", 10, d );
104 if( *t < B_NO_ERROR )
109 #define x264_pthread_join(t,s) { long tmp; \
110 wait_for_thread(t,(s)?(long*)(*(s)):&tmp); }
112 #define usleep(t) snooze(t)
114 #define HAVE_PTHREAD 1
116 #elif defined(HAVE_PTHREAD)
118 #define USE_REAL_PTHREAD
121 #define x264_pthread_t int
122 #define x264_pthread_create(t,u,f,d) 0
123 #define x264_pthread_join(t,s)
126 #ifdef USE_REAL_PTHREAD
127 #define x264_pthread_t pthread_t
128 #define x264_pthread_create pthread_create
129 #define x264_pthread_join pthread_join
130 #define x264_pthread_mutex_t pthread_mutex_t
131 #define x264_pthread_mutex_init pthread_mutex_init
132 #define x264_pthread_mutex_destroy pthread_mutex_destroy
133 #define x264_pthread_mutex_lock pthread_mutex_lock
134 #define x264_pthread_mutex_unlock pthread_mutex_unlock
135 #define x264_pthread_cond_t pthread_cond_t
136 #define x264_pthread_cond_init pthread_cond_init
137 #define x264_pthread_cond_destroy pthread_cond_destroy
138 #define x264_pthread_cond_broadcast pthread_cond_broadcast
139 #define x264_pthread_cond_wait pthread_cond_wait
141 #define x264_pthread_mutex_t int
142 #define x264_pthread_mutex_init(m,f) 0
143 #define x264_pthread_mutex_destroy(m)
144 #define x264_pthread_mutex_lock(m)
145 #define x264_pthread_mutex_unlock(m)
146 #define x264_pthread_cond_t int
147 #define x264_pthread_cond_init(c,f) 0
148 #define x264_pthread_cond_destroy(c)
149 #define x264_pthread_cond_broadcast(c)
150 #define x264_pthread_cond_wait(c,m)
153 #define WORD_SIZE sizeof(void*)
155 #if !defined(_WIN64) && !defined(__LP64__)
156 #if defined(_MSC_VER) || defined(__INTEL_COMPILER)
157 #define BROKEN_STACK_ALIGNMENT /* define it if stack is not mod16 */
161 #ifdef WORDS_BIGENDIAN
162 #define endian_fix(x) (x)
163 #define endian_fix32(x) (x)
164 #define endian_fix16(x) (x)
166 #if defined(__GNUC__) && defined(HAVE_MMX)
167 static ALWAYS_INLINE uint32_t endian_fix32( uint32_t x )
169 asm("bswap %0":"+r"(x));
172 static ALWAYS_INLINE intptr_t endian_fix( intptr_t x )
174 asm("bswap %0":"+r"(x));
177 #elif defined(__GNUC__) && defined(HAVE_ARMV6)
178 static ALWAYS_INLINE intptr_t endian_fix( intptr_t x )
180 asm("rev %0, %0":"+r"(x));
183 #define endian_fix32 endian_fix
185 static ALWAYS_INLINE uint32_t endian_fix32( uint32_t x )
187 return (x<<24) + ((x<<8)&0xff0000) + ((x>>8)&0xff00) + (x>>24);
189 static ALWAYS_INLINE intptr_t endian_fix( intptr_t x )
192 return endian_fix32(x>>32) + ((uint64_t)endian_fix32(x)<<32);
194 return endian_fix32(x);
197 static ALWAYS_INLINE uint16_t endian_fix16( uint16_t x )
199 return (x<<8)|(x>>8);
203 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 3)
204 #define x264_clz(x) __builtin_clz(x)
206 static int ALWAYS_INLINE x264_clz( uint32_t x )
208 static uint8_t lut[16] = {4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0};
209 int y, z = ((x - 0x10000) >> 27) & 16;
211 z += y = ((x - 0x100) >> 28) & 8;
213 z += y = ((x - 0x10) >> 29) & 4;
219 #endif /* X264_OSDEP_H */