Bemanitools v5.26 release

2019-09-27 22:36:50 +02:00
commit cbd7720349
718 changed files with 62731 additions and 0 deletions
@@ -0,0 +1,54 @@
+#include <windows.h>
+
+#include "util/log.h"
+#include "util/time.h"
+
+static uint64_t counter_freq_ns;
+static uint64_t counter_freq_us;
+static uint64_t counter_freq_ms;
+
+static void time_init_freq()
+{
+    LARGE_INTEGER ticks_per_sec;
+    QueryPerformanceFrequency(&ticks_per_sec);
+
+    counter_freq_ms = ticks_per_sec.QuadPart / 1000;
+    counter_freq_us = counter_freq_ms / 1000;
+    counter_freq_ns = counter_freq_us / 1000;
+}
+
+uint64_t time_get_counter(void)
+{
+    LARGE_INTEGER time;
+
+    log_assert(QueryPerformanceCounter(&time) == TRUE);
+    
+    return (uint64_t) time.QuadPart;
+}
+
+uint64_t time_get_elapsed_ns(uint64_t counter_delta)
+{
+    if (counter_freq_ns == 0) {
+        time_init_freq();
+    }
+
+    return counter_delta / counter_freq_ns;
+}
+
+uint64_t time_get_elapsed_us(uint64_t counter_delta)
+{
+    if (counter_freq_ns == 0) {
+        time_init_freq();
+    }
+
+    return counter_delta / counter_freq_us;
+}
+
+uint32_t time_get_elapsed_ms(uint64_t counter_delta)
+{
+    if (counter_freq_ns == 0) {
+        time_init_freq();
+    }
+
+    return counter_delta / counter_freq_ms;
+}