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authorJef <jef@targetspot.com>2024-09-24 08:54:57 -0400
committerJef <jef@targetspot.com>2024-09-24 08:54:57 -0400
commit20d28e80a5c861a9d5f449ea911ab75b4f37ad0d (patch)
tree12f17f78986871dd2cfb0a56e5e93b545c1ae0d0 /Src/Plugins/Visualization/vis_avs/TIMING.C
parent537bcbc86291b32fc04ae4133ce4d7cac8ebe9a7 (diff)
downloadwinamp-20d28e80a5c861a9d5f449ea911ab75b4f37ad0d.tar.gz
Initial community commit
Diffstat (limited to 'Src/Plugins/Visualization/vis_avs/TIMING.C')
-rw-r--r--Src/Plugins/Visualization/vis_avs/TIMING.C69
1 files changed, 69 insertions, 0 deletions
diff --git a/Src/Plugins/Visualization/vis_avs/TIMING.C b/Src/Plugins/Visualization/vis_avs/TIMING.C
new file mode 100644
index 00000000..b32b8743
--- /dev/null
+++ b/Src/Plugins/Visualization/vis_avs/TIMING.C
@@ -0,0 +1,69 @@
+#include "timing.h"
+
+#ifdef TIMING
+#ifndef __alpha
+
+#include <stdio.h>
+
+static struct {
+ unsigned int st_time[2];
+ unsigned int cycles;
+ unsigned int calls;
+} timingInfo[64];
+
+static int timingEnters;
+
+static void rdtsc(unsigned int t[2])
+{
+ __asm
+ {
+ mov esi, t
+ _emit 0xf
+ _emit 0x31
+ mov [esi], eax
+ mov [esi+4], edx
+ }
+}
+
+void _timingInit(void)
+{
+ memset(timingInfo,0,sizeof(timingInfo));
+}
+
+void _timingEnter(int which)
+{
+ // if (!timingEnters++) __asm cli
+ rdtsc(timingInfo[which].st_time);
+}
+
+void _timingLeave(int which)
+{
+ unsigned int t[2];
+ rdtsc(t);
+// if (!--timingEnters) __asm sti
+ if (t[1]==timingInfo[which].st_time[1])
+ {
+ timingInfo[which].cycles += t[0]-timingInfo[which].st_time[0];
+ }
+ else
+ {
+ timingInfo[which].cycles += t[0]+(0xffffffff-timingInfo[which].st_time[0]);
+ }
+ timingInfo[which].calls++;
+}
+
+void _timingPrint(void)
+{
+ int x;
+ FILE *fp = fopen("C:\\timings.txt","wt");
+ for (x = 0; x < sizeof(timingInfo)/sizeof(timingInfo[0]); x ++)
+ {
+ if (timingInfo[x].calls)
+ fprintf(fp,"%d: %d calls, %d clocks/call\n",x,timingInfo[x].calls,timingInfo[x].cycles/timingInfo[x].calls);
+ }
+ timingInit();
+ fclose(fp);
+}
+
+#endif
+#endif