log: Support for 256color terminals
[ffmpeg.git] / libavutil / timer.h
index 709e12f..0d93d7c 100644 (file)
-/**
- * @file libavutil/timer.h
- * high precision timer, useful to profile code
- *
+/*
  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+/**
+ * @file
+ * high precision timer, useful to profile code
+ */
+
 #ifndef AVUTIL_TIMER_H
 #define AVUTIL_TIMER_H
 
 #include <stdlib.h>
 #include <stdint.h>
+#include <inttypes.h>
+
 #include "config.h"
 
-#if ARCH_X86 || ARCH_PPC || ARCH_BFIN
-#define AV_READ_TIME read_time
-#if ARCH_X86
-static inline uint64_t read_time(void)
-{
-    uint32_t a, d;
-    __asm__ volatile("rdtsc\n\t"
-                 : "=a" (a), "=d" (d));
-    return ((uint64_t)d << 32) + a;
-}
-#elif ARCH_BFIN
-static inline uint64_t read_time(void)
-{
-    union {
-        struct {
-            unsigned lo;
-            unsigned hi;
-        } p;
-        unsigned long long c;
-    } t;
-    __asm__ volatile ("%0=cycles; %1=cycles2;" : "=d" (t.p.lo), "=d" (t.p.hi));
-    return t.c;
-}
-#else //FIXME check ppc64
-static inline uint64_t read_time(void)
-{
-    uint32_t tbu, tbl, temp;
+#if HAVE_MACH_MACH_TIME_H
+#include <mach/mach_time.h>
+#endif
 
-     /* from section 2.2.1 of the 32-bit PowerPC PEM */
-     __asm__ volatile(
-         "1:\n"
-         "mftbu  %2\n"
-         "mftb   %0\n"
-         "mftbu  %1\n"
-         "cmpw   %2,%1\n"
-         "bne    1b\n"
-     : "=r"(tbl), "=r"(tbu), "=r"(temp)
-     :
-     : "cc");
+#include "log.h"
 
-     return (((uint64_t)tbu)<<32) | (uint64_t)tbl;
-}
+#if   ARCH_ARM
+#   include "arm/timer.h"
+#elif ARCH_BFIN
+#   include "bfin/timer.h"
+#elif ARCH_PPC
+#   include "ppc/timer.h"
+#elif ARCH_X86
+#   include "x86/timer.h"
 #endif
-#elif HAVE_GETHRTIME
-#define AV_READ_TIME gethrtime
+
+#if !defined(AV_READ_TIME)
+#   if HAVE_GETHRTIME
+#       define AV_READ_TIME gethrtime
+#   elif HAVE_MACH_ABSOLUTE_TIME
+#       define AV_READ_TIME mach_absolute_time
+#   endif
 #endif
 
 #ifdef AV_READ_TIME
-#define START_TIMER \
-uint64_t tend;\
-uint64_t tstart= AV_READ_TIME();\
+#define START_TIMER                             \
+    uint64_t tend;                              \
+    uint64_t tstart = AV_READ_TIME();           \
 
-#define STOP_TIMER(id) \
-tend= AV_READ_TIME();\
-{\
-    static uint64_t tsum=0;\
-    static int tcount=0;\
-    static int tskip_count=0;\
-    if(tcount<2 || tend - tstart < 8*tsum/tcount || tend - tstart < 2000){\
-        tsum+= tend - tstart;\
-        tcount++;\
-    }else\
-        tskip_count++;\
-    if(((tcount+tskip_count)&(tcount+tskip_count-1))==0){\
-        av_log(NULL, AV_LOG_ERROR, "%"PRIu64" dezicycles in %s, %d runs, %d skips\n",\
-               tsum*10/tcount, id, tcount, tskip_count);\
-    }\
-}
+#define STOP_TIMER(id)                                                    \
+    tend = AV_READ_TIME();                                                \
+    {                                                                     \
+        static uint64_t tsum   = 0;                                       \
+        static int tcount      = 0;                                       \
+        static int tskip_count = 0;                                       \
+        if (tcount < 2                        ||                          \
+            tend - tstart < 8 * tsum / tcount ||                          \
+            tend - tstart < 2000) {                                       \
+            tsum+= tend - tstart;                                         \
+            tcount++;                                                     \
+        } else                                                            \
+            tskip_count++;                                                \
+        if (((tcount + tskip_count) & (tcount + tskip_count - 1)) == 0) { \
+            av_log(NULL, AV_LOG_ERROR,                                    \
+                   "%"PRIu64" UNITS in %s, %d runs, %d skips\n",          \
+                   tsum * 10 / tcount, id, tcount, tskip_count);          \
+        }                                                                 \
+    }
 #else
 #define START_TIMER
-#define STOP_TIMER(id) {}
+#define STOP_TIMER(id) { }
 #endif
 
 #endif /* AVUTIL_TIMER_H */