add oversampler

oversampling/WDL/timing.c

@@ -0,0 +1,108 @@
+#include "timing.h"
+
+#ifdef TIMING
+
+#include <stdio.h>
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <sys/time.h>
+#endif
+
+#include "wdlcstring.h"
+
+#if defined(__APPLE__) && defined(__OBJC__)
+#import <Foundation/Foundation.h>
+#endif
+
+static struct {
+	WDL_INT64 st_time;
+	WDL_INT64 cycles,mint,maxt;
+	WDL_INT64 calls;
+} __wdl_timingInfo[64];
+static int __wdl_timingInfo_reg;
+
+
+static void __wdl_timingInfo_gettime(WDL_INT64 *t)
+{
+#ifdef _WIN64
+#define TIMING_UNITS "QPC_UNITS"
+  LARGE_INTEGER now;
+  QueryPerformanceCounter(&now);
+  *t = now.QuadPart;
+#elif !defined(_WIN32)
+#define TIMING_UNITS "uSec"
+  struct timeval tm={0,};
+  gettimeofday(&tm,NULL);
+  *t = ((WDL_INT64)tm.tv_sec)*1000000 + (WDL_INT64)tm.tv_usec;
+#else
+#define TIMING_UNITS "cycles"
+	__asm 
+	{
+		mov esi, t
+		_emit 0xf
+		_emit 0x31
+		mov [esi], eax
+		mov [esi+4], edx
+	}
+#endif
+}
+
+void _timingPrint(void)
+{
+  int x,p=0;
+  for (x = 0; x < (int) (sizeof(__wdl_timingInfo)/sizeof(__wdl_timingInfo[0])); x ++)
+  {
+    if (__wdl_timingInfo[x].calls)
+    {
+      p++;
+      wdl_log("wdl_timing: %d: %.0f calls, %.0f " TIMING_UNITS "/call (min=%.0f, max=%.0f). %.0f " TIMING_UNITS " of CPU time spent\n",
+        x,(double)__wdl_timingInfo[x].calls,(__wdl_timingInfo[x].cycles/(double)__wdl_timingInfo[x].calls),
+        (double)__wdl_timingInfo[x].mint,(double)__wdl_timingInfo[x].maxt,
+        (double)__wdl_timingInfo[x].cycles 
+      );
+    }
+  }
+  if (!p) wdl_log("wdl_timing: no calls to timing lib\n");
+}
+	
+void _timingEnter(int which)
+{
+  if (!__wdl_timingInfo_reg)
+  {
+    __wdl_timingInfo_reg=1;
+    atexit(_timingPrint);
+  }
+
+  if (which >= 0 && which < (int) (sizeof(__wdl_timingInfo)/sizeof(__wdl_timingInfo[0])))
+    __wdl_timingInfo_gettime(&__wdl_timingInfo[which].st_time);
+}
+
+void _timingLeave(int which)
+{
+  if (which >= 0 && which < (int) (sizeof(__wdl_timingInfo)/sizeof(__wdl_timingInfo[0])))
+  {
+    WDL_INT64 t;
+    __wdl_timingInfo_gettime(&t);
+    t -= __wdl_timingInfo[which].st_time;
+    if (!__wdl_timingInfo[which].mint || t < __wdl_timingInfo[which].mint) __wdl_timingInfo[which].mint=t?t:1;
+    if (t > __wdl_timingInfo[which].maxt) __wdl_timingInfo[which].maxt=t;
+    __wdl_timingInfo[which].cycles += t;
+    __wdl_timingInfo[which].calls += 1;
+  }
+}
+
+WDL_INT64 _timingQuery(int which, WDL_INT64* cycles)
+{
+  if (__wdl_timingInfo[which].calls && cycles)
+  {
+    cycles[0] = __wdl_timingInfo[which].cycles;
+    cycles[1] = __wdl_timingInfo[which].mint;
+    cycles[2] = __wdl_timingInfo[which].maxt;
+  }
+  return __wdl_timingInfo[which].calls;
+}
+
+#undef TIMING_UNITS
+
+#endif