#define _LARGEFILE_SOURCE 1
#define _FILE_OFFSET_BITS 64
#include <stdio.h>
+#include <sys/stat.h>
+
+#include "config.h"
#ifdef HAVE_STDINT_H
#include <stdint.h>
#include <inttypes.h>
#endif
+#ifndef HAVE_LOG2F
+#define log2f(x) (logf((x))/0.693147180559945f)
+#endif
+
#ifdef _WIN32
#include <io.h> // _setmode()
#include <fcntl.h> // _O_BINARY
#endif
-#ifdef _MSC_VER
-#define inline __inline
-#define strcasecmp stricmp
-#define strncasecmp strnicmp
-#define snprintf _snprintf
-#define fseek _fseeki64
-#define ftell _ftelli64
-#define isfinite _finite
-#define strtok_r strtok_s
-#define _CRT_SECURE_NO_DEPRECATE
-#define X264_VERSION "" // no configure script for msvc
-#endif
-
#if (defined(SYS_OPENBSD) && !defined(isfinite)) || defined(SYS_SunOS)
#define isfinite finite
#endif
-#if defined(_MSC_VER) || defined(SYS_SunOS) || defined(SYS_MACOSX)
-#define sqrtf sqrt
-#endif
#ifdef _WIN32
#define rename(src,dst) (unlink(dst), rename(src,dst)) // POSIX says that rename() removes the destination, but win32 doesn't.
#ifndef strtok_r
#endif
#endif
-#ifdef _MSC_VER
-#define DECLARE_ALIGNED( var, n ) __declspec(align(n)) var
-#else
#define DECLARE_ALIGNED( var, n ) var __attribute__((aligned(n)))
+#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...
+#if defined(ARCH_ARM) && defined(SYS_MACOSX)
+#define ALIGNED_ARRAY_8( type, name, sub1, ... )\
+ uint8_t name##_u [sizeof(type sub1 __VA_ARGS__) + 7]; \
+ type (*name) __VA_ARGS__ = (void*)((intptr_t)(name##_u+7) & ~7)
+#else
+#define ALIGNED_ARRAY_8( type, name, sub1, ... )\
+ ALIGNED_8( type name sub1 __VA_ARGS__ )
+#endif
+
+#ifdef ARCH_ARM
+#define ALIGNED_ARRAY_16( type, name, sub1, ... )\
+ uint8_t name##_u [sizeof(type sub1 __VA_ARGS__) + 15];\
+ type (*name) __VA_ARGS__ = (void*)((intptr_t)(name##_u+15) & ~15)
+#else
+#define ALIGNED_ARRAY_16( type, name, sub1, ... )\
+ ALIGNED_16( type name sub1 __VA_ARGS__ )
#endif
-#define DECLARE_ALIGNED_16( var ) DECLARE_ALIGNED( var, 16 )
-#define DECLARE_ALIGNED_8( var ) DECLARE_ALIGNED( var, 8 )
-#define DECLARE_ALIGNED_4( var ) DECLARE_ALIGNED( var, 4 )
#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)
#else
#define UNUSED
#define ALWAYS_INLINE inline
#define NOINLINE
+#define MAY_ALIAS
#define x264_constant_p(x) 0
#endif
#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_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
#else
#define x264_pthread_mutex_t int
#define x264_pthread_mutex_init(m,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
#define WORD_SIZE sizeof(void*)
+#define asm __asm__
+
#if !defined(_WIN64) && !defined(__LP64__)
-#if defined(_MSC_VER) || defined(__INTEL_COMPILER)
+#if defined(__INTEL_COMPILER)
#define BROKEN_STACK_ALIGNMENT /* define it if stack is not mod16 */
#endif
#endif
#ifdef WORDS_BIGENDIAN
#define endian_fix(x) (x)
+#define endian_fix64(x) (x)
#define endian_fix32(x) (x)
#define endian_fix16(x) (x)
#else
asm("bswap %0":"+r"(x));
return x;
}
-static ALWAYS_INLINE intptr_t endian_fix( intptr_t x )
+#elif defined(__GNUC__) && defined(HAVE_ARMV6)
+static ALWAYS_INLINE uint32_t endian_fix32( uint32_t x )
{
- asm("bswap %0":"+r"(x));
+ asm("rev %0, %0":"+r"(x));
return x;
}
#else
{
return (x<<24) + ((x<<8)&0xff0000) + ((x>>8)&0xff00) + (x>>24);
}
-static ALWAYS_INLINE intptr_t endian_fix( intptr_t x )
+#endif
+#if defined(__GNUC__) && defined(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 )
{
- if( WORD_SIZE == 8 )
- return endian_fix32(x>>32) + ((uint64_t)endian_fix32(x)<<32);
- else
- return endian_fix32(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);
#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 - 0x10000) >> 27) & 16;
+ int y, z = (((x >> 16) - 1) >> 27) & 16;
x >>= z^16;
z += y = ((x - 0x100) >> 28) & 8;
x >>= y^8;
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
+#ifdef USE_REAL_PTHREAD
+#ifdef SYS_MINGW
+#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 );\
+}
+#else
+#include <unistd.h>
+#define x264_lower_thread_priority(p) { UNUSED int nice_ret = nice(p); }
+#endif /* USE_REAL_PTHREAD */
+#else
+#define x264_lower_thread_priority(p)
+#endif
+
+static inline uint8_t x264_is_regular_file( FILE *filehandle )
+{
+ struct stat file_stat;
+ if( fstat( fileno( filehandle ), &file_stat ) )
+ return 0;
+ return S_ISREG( file_stat.st_mode );
+}
+
#endif /* X264_OSDEP_H */
projects / x264 / blobdiff