*/
/**
- * @file libavutil/internal.h
+ * @file
* common internal API header
*/
#include <stddef.h>
#include <assert.h>
#include "config.h"
-#include "common.h"
-#include "mem.h"
+#include "attributes.h"
#include "timer.h"
#ifndef attribute_align_arg
#endif
#ifndef INT16_MIN
-#define INT16_MIN (-0x7fff-1)
+#define INT16_MIN (-0x7fff - 1)
#endif
#ifndef INT16_MAX
#endif
#ifndef INT32_MIN
-#define INT32_MIN (-0x7fffffff-1)
+#define INT32_MIN (-0x7fffffff - 1)
#endif
#ifndef INT32_MAX
#endif
#ifndef INT64_MIN
-#define INT64_MIN (-0x7fffffffffffffffLL-1)
+#define INT64_MIN (-0x7fffffffffffffffLL - 1)
#endif
#ifndef INT64_MAX
# define INT_BIT (CHAR_BIT * sizeof(int))
#endif
-#if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
-# define PIC
-#endif
-
#ifndef offsetof
-# define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
+# define offsetof(T, F) ((unsigned int)((char *)&((T *)0)->F))
#endif
/* Use to export labels from asm. */
/* math */
-extern const uint32_t ff_inverse[256];
-
-#if ARCH_X86
-# define FASTDIV(a,b) \
- ({\
- int ret,dmy;\
- __asm__ volatile(\
- "mull %3"\
- :"=d"(ret),"=a"(dmy)\
- :"1"(a),"g"(ff_inverse[b])\
- );\
- ret;\
- })
-#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[256];
-
-static inline av_const unsigned int ff_sqrt(unsigned int a)
-{
- 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 b - (a<b*b);
-}
-
#if ARCH_X86
#define MASK_ABS(mask, level)\
__asm__ volatile(\
);
#else
#define MASK_ABS(mask, level)\
- mask= level>>31;\
- level= (level^mask)-mask;
-#endif
-
-#if HAVE_CMOV
-#define COPY3_IF_LT(x,y,a,b,c,d)\
-__asm__ volatile (\
- "cmpl %0, %3 \n\t"\
- "cmovl %3, %0 \n\t"\
- "cmovl %4, %1 \n\t"\
- "cmovl %5, %2 \n\t"\
- : "+&r" (x), "+&r" (a), "+r" (c)\
- : "r" (y), "r" (b), "r" (d)\
-);
-#else
-#define COPY3_IF_LT(x,y,a,b,c,d)\
-if((y)<(x)){\
- (x)=(y);\
- (a)=(b);\
- (c)=(d);\
-}
+ mask = level >> 31;\
+ level = (level ^ mask) - mask;
#endif
/* avoid usage of dangerous/inappropriate system functions */
#define perror please_use_av_log_instead_of_perror
#endif
-#define CHECKED_ALLOCZ(p, size)\
+#define FF_ALLOC_OR_GOTO(ctx, p, size, label)\
{\
- p= av_mallocz(size);\
- if(p==NULL && (size)!=0){\
- av_log(NULL, AV_LOG_ERROR, "Cannot allocate memory.");\
- goto fail;\
+ p = av_malloc(size);\
+ if (p == NULL && (size) != 0) {\
+ av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
+ goto label;\
}\
}
-#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
-#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 */
-
-#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);
+#define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)\
+{\
+ p = av_mallocz(size);\
+ if (p == NULL && (size) != 0) {\
+ av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
+ goto label;\
+ }\
}
-#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 */
+#include "libm.h"
/**
* Returns NULL if CONFIG_SMALL is true, otherwise the argument
# define NULL_IF_CONFIG_SMALL(x) x
#endif
+#if HAVE_SYMVER_ASM_LABEL
+# define FF_SYMVER(type, name, args, ver) \
+ type ff_##name args __asm__ (EXTERN_PREFIX #name "@" ver); \
+ type ff_##name args
+#elif HAVE_SYMVER_GNU_ASM
+# define FF_SYMVER(type, name, args, ver) \
+ __asm__ (".symver ff_" #name "," EXTERN_PREFIX #name "@" ver); \
+ type ff_##name args; \
+ type ff_##name args
+#endif
+
#endif /* AVUTIL_INTERNAL_H */
projects / ffmpeg / blobdiff