remove useless close function

[ffmpeg] / libavutil / internal.h

diff --git a/libavutil/internal.h b/libavutil/internal.h
index fd6279b602bc2c158780fbbd1e77db83c84ccca6..8e4f81b244d9bea0c7280e4edbeffd82499b87a7 100644 (file)
--- a/libavutil/internal.h
+++ b/libavutil/internal.h
@@ -105,6 +105,7 @@
 #    define PIC
 #endif
 
+#include "config.h"
 #include "intreadwrite.h"
 #include "bswap.h"
 
@@ -118,23 +119,14 @@
 #endif
 
 // Use rip-relative addressing if compiling PIC code on x86-64.
-#if defined(__MINGW32__) || defined(__CYGWIN__) || defined(__DJGPP__) || \
-    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 defined(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(__APPLE__)
-#        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 */
@@ -178,30 +170,34 @@ extern const uint32_t ff_inverse[256];
 #    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 int av_log2_16bit(unsigned int v);
+
+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;
+#ifndef 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)
 #define MASK_ABS(mask, level)\
             asm volatile(\
-                "cdq                    \n\t"\
+                "cltd                   \n\t"\
                 "xorl %1, %0            \n\t"\
                 "subl %1, %0            \n\t"\
                 : "+a" (level), "=&d" (mask)\
@@ -273,35 +269,35 @@ if((y)<(x)){\
 }
 
 #ifndef HAVE_LLRINT
-static av_always_inline long long llrint(double x)
+static av_always_inline av_const long long llrint(double x)
 {
     return rint(x);
 }
 #endif /* HAVE_LLRINT */
 
 #ifndef HAVE_LRINT
-static av_always_inline long int lrint(double x)
+static av_always_inline av_const long int lrint(double x)
 {
     return rint(x);
 }
 #endif /* HAVE_LRINT */
 
 #ifndef HAVE_LRINTF
-static av_always_inline long int lrintf(float x)
+static av_always_inline av_const long int lrintf(float x)
 {
     return (int)(rint(x));
 }
 #endif /* HAVE_LRINTF */
 
 #ifndef HAVE_ROUND
-static av_always_inline double round(double x)
+static av_always_inline av_const double round(double x)
 {
     return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
 }
 #endif /* HAVE_ROUND */
 
 #ifndef HAVE_ROUNDF
-static av_always_inline float roundf(float x)
+static av_always_inline av_const float roundf(float x)
 {
     return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
 }