Move BenchTimer to tools as Timer
This breaks a bunch of circular dependencies between tools and gm and bench.
BUG=skia:
Committed: https://skia.googlesource.com/skia/+/4ed75287aed6371c6e4a41ffcc78c8a49c9810ed
CQ_EXTRA_TRYBOTS=tryserver.skia:Build-Mac10.7-Clang-Arm7-Debug-iOS-Trybot,Test-Ubuntu12-ShuttleA-GTX660-x86-Debug-Trybot
R=tfarina@chromium.org, mtklein@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/344213003
diff --git a/tools/timer/SysTimer_windows.cpp b/tools/timer/SysTimer_windows.cpp
new file mode 100644
index 0000000..2f9d0a5
--- /dev/null
+++ b/tools/timer/SysTimer_windows.cpp
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include "SysTimer_windows.h"
+
+static ULONGLONG win_cpu_time() {
+ FILETIME createTime;
+ FILETIME exitTime;
+ FILETIME usrTime;
+ FILETIME sysTime;
+ if (0 == GetProcessTimes(GetCurrentProcess(), &createTime, &exitTime, &sysTime, &usrTime)) {
+ return 0;
+ }
+ ULARGE_INTEGER start_cpu_sys;
+ ULARGE_INTEGER start_cpu_usr;
+ start_cpu_sys.LowPart = sysTime.dwLowDateTime;
+ start_cpu_sys.HighPart = sysTime.dwHighDateTime;
+ start_cpu_usr.LowPart = usrTime.dwLowDateTime;
+ start_cpu_usr.HighPart = usrTime.dwHighDateTime;
+ return start_cpu_sys.QuadPart + start_cpu_usr.QuadPart;
+}
+
+void SysTimer::startWall() {
+ if (0 == ::QueryPerformanceCounter(&fStartWall)) {
+ fStartWall.QuadPart = 0;
+ }
+}
+void SysTimer::startCpu() {
+ fStartCpu = win_cpu_time();
+}
+
+double SysTimer::endCpu() {
+ ULONGLONG end_cpu = win_cpu_time();
+ return static_cast<double>(end_cpu - fStartCpu) / 10000.0L;
+}
+double SysTimer::endWall() {
+ LARGE_INTEGER end_wall;
+ if (0 == ::QueryPerformanceCounter(&end_wall)) {
+ end_wall.QuadPart = 0;
+ }
+
+ LARGE_INTEGER ticks_elapsed;
+ ticks_elapsed.QuadPart = end_wall.QuadPart - fStartWall.QuadPart;
+
+ LARGE_INTEGER frequency;
+ if (0 == ::QueryPerformanceFrequency(&frequency)) {
+ return 0.0L;
+ } else {
+ return static_cast<double>(ticks_elapsed.QuadPart)
+ / static_cast<double>(frequency.QuadPart)
+ * 1000.0L;
+ }
+}