1 files changed, 75 insertions, 0 deletions
diff --git a/Source/Internal/stopwatch.cpp b/Source/Internal/stopwatch.cpp
new file mode 100644
index 00000000..a0a14563
--- /dev/null
+++ b/Source/Internal/stopwatch.cpp
@@ -0,0 +1,75 @@
+//-----------------------------------------------------------------------------
+//           Name: stopwatch.cpp
+//      Developer: Wolfire Games LLC
+//    Description: 
+//        License: Read below
+//-----------------------------------------------------------------------------
+//
+//   Copyright 2022 Wolfire Games LLC
+//
+//   Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//   Unless required by applicable law or agreed to in writing, software
+//   distributed under the License is distributed on an "AS IS" BASIS,
+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//   See the License for the specific language governing permissions and
+//   limitations under the License.
+//
+//-----------------------------------------------------------------------------
+#include "stopwatch.h"
+
+#include <Compat/time.h>
+#include <Logging/logdata.h>
+#include <Threading/sdl_wrapper.h>
+
+void BusyWaitMilliseconds( uint32_t how_many )
+{    
+    Stopwatch watch;
+    while(watch.ReportMilliseconds()<how_many){
+    }
+}
+
+void Stopwatch::Start() {
+    start_time = SDL_TS_GetTicks();
+}
+
+void Stopwatch::Stop(std::string text) {
+    uint32_t time_elapsed = StopAndReport();
+    LOGI << time_elapsed << " " << text << std::endl;
+}
+
+uint32_t Stopwatch::StopAndReport() {
+    uint32_t time = SDL_TS_GetTicks();
+    uint32_t time_elapsed = time - start_time;
+    start_time = time;
+
+    return time_elapsed;
+}
+
+uint32_t Stopwatch::ReportMilliseconds() {
+    uint32_t time = SDL_TS_GetTicks();
+    uint32_t time_elapsed = time - start_time;
+
+    return time_elapsed;
+}
+
+void PrecisionStopwatch::Start() {
+    start_time = GetPrecisionTime();
+}
+
+void PrecisionStopwatch::Stop(std::string text) {
+    uint64_t time_elapsed = StopAndReportNanoseconds();
+    LOGI << time_elapsed << " " <<  text << std::endl;
+}
+
+uint64_t PrecisionStopwatch::StopAndReportNanoseconds() {
+    uint64_t time = GetPrecisionTime();
+    uint64_t time_elapsed = time - start_time;
+    start_time = time;
+
+    return ToNanoseconds(time_elapsed);
+}