Higher resolution timers for bench.
http://codereview.appspot.com/4548090/
git-svn-id: http://skia.googlecode.com/svn/trunk@1534 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/BenchTimer.cpp b/bench/BenchTimer.cpp
new file mode 100644
index 0000000..e7b0068
--- /dev/null
+++ b/bench/BenchTimer.cpp
@@ -0,0 +1,48 @@
+#include "BenchTimer.h"
+#if defined(SK_BUILD_FOR_WIN32)
+ #include "BenchSysTimer_windows.h"
+#elif defined(SK_BUILD_FOR_MAC)
+ #include "BenchSysTimer_mach.h"
+#elif defined(SK_BUILD_FOR_UNIX)
+ #include "BenchSysTimer_posix.h"
+#else
+ #include "BenchSysTimer_c.h"
+#endif
+
+#if defined(SK_MESA) || \
+ defined(SK_BUILD_FOR_WIN32) || \
+ defined(SK_BUILD_FOR_MAC) || \
+ defined(SK_BUILD_FOR_UNIX)
+ #include "BenchGpuTimer_gl.h"
+
+#else
+ #include "BenchGpuTimer_none.h"
+#endif
+
+BenchTimer::BenchTimer()
+ : fCpu(-1.0)
+ , fWall(-1.0)
+ , fGpu(-1.0)
+{
+ this->fSysTimer = new BenchSysTimer();
+ this->fGpuTimer = new BenchGpuTimer();
+}
+
+BenchTimer::~BenchTimer() {
+ delete this->fSysTimer;
+ delete this->fGpuTimer;
+}
+
+void BenchTimer::start() {
+ this->fSysTimer->startWall();
+ this->fGpuTimer->startGpu();
+ this->fSysTimer->startCpu();
+}
+
+void BenchTimer::end() {
+ this->fCpu = this->fSysTimer->endCpu();
+ //It is important to stop the cpu clocks first,
+ //as the following will cpu wait for the gpu to finish.
+ this->fGpu = this->fGpuTimer->endGpu();
+ this->fWall = this->fSysTimer->endWall();
+}