*/
/**
- * @file internal.h
- * common internal api header.
+ * @file libavutil/internal.h
+ * common internal API header
*/
-#ifndef INTERNAL_H
-#define INTERNAL_H
+#ifndef AVUTIL_INTERNAL_H
+#define AVUTIL_INTERNAL_H
#if !defined(DEBUG) && !defined(NDEBUG)
# define NDEBUG
#endif
+#include <limits.h>
#include <stdint.h>
#include <stddef.h>
#include <assert.h>
+#include "config.h"
+#include "common.h"
+#include "mem.h"
+#include "timer.h"
#ifndef attribute_align_arg
-#if defined(__GNUC__) && (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__>1)
+#if (!defined(__ICC) || __ICC > 1100) && AV_GCC_VERSION_AT_LEAST(4,2)
# define attribute_align_arg __attribute__((force_align_arg_pointer))
#else
# define attribute_align_arg
#endif
#ifndef attribute_used
-#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
+#if AV_GCC_VERSION_AT_LEAST(3,1)
# define attribute_used __attribute__((used))
#else
# define attribute_used
#endif
#endif
-/* Use Apple-specific AltiVec syntax for vector declarations when necessary. */
-#ifdef __APPLE_CC__
-#define AVV(x...) (x)
-#else
-#define AVV(x...) {x}
-#endif
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
#ifndef INT16_MIN
#define INT16_MIN (-0x7fff-1)
#endif
#endif
#ifndef INT_BIT
-# if INT_MAX != 2147483647
-# define INT_BIT 64
-# else
-# define INT_BIT 32
-# endif
+# define INT_BIT (CHAR_BIT * sizeof(int))
#endif
#if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
# define PIC
#endif
-#include "intreadwrite.h"
-#include "bswap.h"
-
#ifndef offsetof
# define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
#endif
-#ifdef USE_FASTMEMCPY
-# include "libvo/fastmemcpy.h"
-# define memcpy(a,b,c) fast_memcpy(a,b,c)
-#endif
-
// Use rip-relative addressing if compiling PIC code on x86-64.
-#if defined(__MINGW32__) || defined(__CYGWIN__) || \
- defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
-# if defined(ARCH_X86_64) && defined(PIC)
-# define MANGLE(a) "_" #a"(%%rip)"
-# else
-# define MANGLE(a) "_" #a
-# endif
+#if ARCH_X86_64 && defined(PIC)
+# define LOCAL_MANGLE(a) #a "(%%rip)"
#else
-# if defined(ARCH_X86_64) && defined(PIC)
-# define MANGLE(a) #a"(%%rip)"
-# elif defined(SYS_DARWIN)
-# define MANGLE(a) "_" #a
-# else
-# define MANGLE(a) #a
-# endif
+# define LOCAL_MANGLE(a) #a
#endif
+#define MANGLE(a) EXTERN_PREFIX LOCAL_MANGLE(a)
+
/* debug stuff */
/* dprintf macros */
extern const uint32_t ff_inverse[256];
-#if defined(ARCH_X86)
+#if ARCH_X86
# define FASTDIV(a,b) \
({\
int ret,dmy;\
- asm volatile(\
+ __asm__ volatile(\
"mull %3"\
:"=d"(ret),"=a"(dmy)\
:"1"(a),"g"(ff_inverse[b])\
);\
ret;\
})
-#elif defined(ARCH_ARMV4L)
-# define FASTDIV(a,b) \
- ({\
- int ret,dmy;\
- asm volatile(\
- "umull %1, %0, %2, %3"\
- :"=&r"(ret),"=&r"(dmy)\
- :"r"(a),"r"(ff_inverse[b])\
- );\
- ret;\
- })
-#elif defined(CONFIG_FASTDIV)
+#elif HAVE_ARMV6 && HAVE_INLINE_ASM
+static inline av_const int FASTDIV(int a, int b)
+{
+ int r, t;
+ __asm__ volatile("cmp %3, #2 \n\t"
+ "ldr %1, [%4, %3, lsl #2] \n\t"
+ "lsrle %0, %2, #1 \n\t"
+ "smmulgt %0, %1, %2 \n\t"
+ : "=&r"(r), "=&r"(t) : "r"(a), "r"(b), "r"(ff_inverse));
+ return r;
+}
+#elif ARCH_ARM && HAVE_INLINE_ASM
+static inline av_const int FASTDIV(int a, int b)
+{
+ int r, t;
+ __asm__ volatile ("umull %1, %0, %2, %3"
+ : "=&r"(r), "=&r"(t) : "r"(a), "r"(ff_inverse[b]));
+ return r;
+}
+#elif CONFIG_FASTDIV
# define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*ff_inverse[b])>>32))
#else
# define FASTDIV(a,b) ((a)/(b))
#endif
-extern const uint8_t ff_sqrt_tab[128];
+extern const uint8_t ff_sqrt_tab[256];
-static inline int ff_sqrt(int a)
+static inline av_const unsigned int ff_sqrt(unsigned int a)
{
- int ret=0;
- int s, b;
-
- if(a<128) return ff_sqrt_tab[a];
-
- for(s=30; s>=0; s-=2){
- ret+=ret;
- b= (1+2*ret)<<s;
- if(b<=a){
- a-=b;
- ret++;
- }
+ unsigned int b;
+
+ if(a<255) return (ff_sqrt_tab[a+1]-1)>>4;
+ else if(a<(1<<12)) b= ff_sqrt_tab[a>>4 ]>>2;
+#if !CONFIG_SMALL
+ else if(a<(1<<14)) b= ff_sqrt_tab[a>>6 ]>>1;
+ else if(a<(1<<16)) b= ff_sqrt_tab[a>>8 ] ;
+#endif
+ else{
+ int s= av_log2_16bit(a>>16)>>1;
+ unsigned int c= a>>(s+2);
+ b= ff_sqrt_tab[c>>(s+8)];
+ b= FASTDIV(c,b) + (b<<s);
}
- return ret;
+
+ return b - (a<b*b);
}
-#if defined(ARCH_X86)
+#if ARCH_X86
#define MASK_ABS(mask, level)\
- asm volatile(\
- "cdq \n\t"\
+ __asm__ volatile(\
+ "cltd \n\t"\
"xorl %1, %0 \n\t"\
"subl %1, %0 \n\t"\
: "+a" (level), "=&d" (mask)\
level= (level^mask)-mask;
#endif
-#ifdef HAVE_CMOV
+#if HAVE_CMOV
#define COPY3_IF_LT(x,y,a,b,c,d)\
-asm volatile (\
+__asm__ volatile (\
"cmpl %0, %3 \n\t"\
"cmovl %3, %0 \n\t"\
"cmovl %4, %1 \n\t"\
}
#endif
-/* avoid usage of various functions */
+/* avoid usage of dangerous/inappropriate system functions */
#undef malloc
#define malloc please_use_av_malloc
#undef free
#undef time
#define time time_is_forbidden_due_to_security_issues
#undef rand
-#define rand rand_is_forbidden_due_to_state_trashing_use_av_random
+#define rand rand_is_forbidden_due_to_state_trashing_use_av_lfg_get
#undef srand
-#define srand srand_is_forbidden_due_to_state_trashing_use_av_init_random
+#define srand srand_is_forbidden_due_to_state_trashing_use_av_lfg_init
#undef random
-#define random random_is_forbidden_due_to_state_trashing_use_av_random
+#define random random_is_forbidden_due_to_state_trashing_use_av_lfg_get
#undef sprintf
#define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
#undef strcat
#define strcat strcat_is_forbidden_due_to_security_issues_use_av_strlcat
#undef exit
#define exit exit_is_forbidden
-#if !(defined(LIBAVFORMAT_BUILD) || defined(FRAMEHOOK_H))
+#ifndef LIBAVFORMAT_BUILD
#undef printf
-#define printf please_use_av_log
+#define printf please_use_av_log_instead_of_printf
#undef fprintf
-#define fprintf please_use_av_log
+#define fprintf please_use_av_log_instead_of_fprintf
+#undef puts
+#define puts please_use_av_log_instead_of_puts
+#undef perror
+#define perror please_use_av_log_instead_of_perror
#endif
#define CHECKED_ALLOCZ(p, size)\
{\
p= av_mallocz(size);\
if(p==NULL && (size)!=0){\
- perror("malloc");\
+ av_log(NULL, AV_LOG_ERROR, "Cannot allocate memory.");\
goto fail;\
}\
}
-#ifndef HAVE_LRINTF
-/* XXX: add ISOC specific test to avoid specific BSD testing. */
-/* better than nothing implementation. */
-/* btw, rintf() is existing on fbsd too -- alex */
-static av_always_inline long int lrintf(float x)
+#if defined(__ICC) || defined(__SUNPRO_C)
+ #define DECLARE_ALIGNED(n,t,v) t v __attribute__ ((aligned (n)))
+ #define DECLARE_ASM_CONST(n,t,v) const t __attribute__ ((aligned (n))) v
+#elif defined(__GNUC__)
+ #define DECLARE_ALIGNED(n,t,v) t v __attribute__ ((aligned (n)))
+ #define DECLARE_ASM_CONST(n,t,v) static const t v attribute_used __attribute__ ((aligned (n)))
+#elif defined(_MSC_VER)
+ #define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v
+ #define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v
+#elif HAVE_INLINE_ASM
+ #error The asm code needs alignment, but we do not know how to do it for this compiler.
+#else
+ #define DECLARE_ALIGNED(n,t,v) t v
+ #define DECLARE_ASM_CONST(n,t,v) static const t v
+#endif
+
+
+#if !HAVE_LLRINT
+static av_always_inline av_const long long llrint(double x)
+{
+ return rint(x);
+}
+#endif /* HAVE_LLRINT */
+
+#if !HAVE_LRINT
+static av_always_inline av_const long int lrint(double x)
+{
+ return rint(x);
+}
+#endif /* HAVE_LRINT */
+
+#if !HAVE_LRINTF
+static av_always_inline av_const long int lrintf(float x)
{
return (int)(rint(x));
}
#endif /* HAVE_LRINTF */
-#endif /* INTERNAL_H */
+#if !HAVE_ROUND
+static av_always_inline av_const double round(double x)
+{
+ return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
+}
+#endif /* HAVE_ROUND */
+
+#if !HAVE_ROUNDF
+static av_always_inline av_const float roundf(float x)
+{
+ return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
+}
+#endif /* HAVE_ROUNDF */
+
+#if !HAVE_TRUNCF
+static av_always_inline av_const float truncf(float x)
+{
+ return (x > 0) ? floor(x) : ceil(x);
+}
+#endif /* HAVE_TRUNCF */
+
+/**
+ * Returns NULL if CONFIG_SMALL is true, otherwise the argument
+ * without modification. Used to disable the definition of strings
+ * (for example AVCodec long_names).
+ */
+#if CONFIG_SMALL
+# define NULL_IF_CONFIG_SMALL(x) NULL
+#else
+# define NULL_IF_CONFIG_SMALL(x) x
+#endif
+
+#endif /* AVUTIL_INTERNAL_H */
projects / frescor / ffmpeg.git / blobdiff