Revert of SkTime::GetNSecs()

tools/timer/TimerData.h

+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef TimerData_DEFINED
+#define TimerData_DEFINED
+
+#include "SkString.h"
+#include "SkTemplates.h"
+
+#ifdef SK_BUILD_FOR_WIN
+    #pragma warning(push)
+    #pragma warning(disable : 4530)
+#endif
+
+#include "SkJSONCPP.h"
+
+#ifdef SK_BUILD_FOR_WIN
+    #pragma warning(pop)
+#endif
+
+class Timer;
+
+class TimerData {
+public:
+    /**
+     * Constructs a TimerData to hold at most maxNumTimings sets of elapsed timer values.
+     **/
+    explicit TimerData(int maxNumTimings);
+
+    /**
+     * Collect times from the Timer for an iteration. It will fail if called more often than
+     * indicated in the constructor.
+     *
+     * @param Timer Must not be null.
+     */
+    bool appendTimes(Timer*);
+
+    enum Result {
+        kMin_Result,
+        kAvg_Result,
+        kPerIter_Result
+    };
+
+    enum TimerFlags {
+        kWall_Flag              = 0x1,
+        kTruncatedWall_Flag     = 0x2,
+        kCpu_Flag               = 0x4,
+        kTruncatedCpu_Flag      = 0x8,
+        kGpu_Flag               = 0x10
+    };
+
+    /**
+     * Gets the timer data results as a string.
+     * @param doubleFormat printf-style format for doubles (e.g. "%02d")
+     * @param result the type of result desired
+     * @param the name of the config being timed (prepended to results string)
+     * @param timerFlags bitfield of TimerFlags values indicating which timers should be reported.
+     * @param itersPerTiming the number of test/bench iterations that correspond to each
+     *        appendTimes() call, 1 when appendTimes is called for each iteration.
+     */
+    SkString getResult(const char* doubleFormat,
+                       Result result,
+                       const char* configName,
+                       uint32_t timerFlags,
+                       int itersPerTiming = 1);
+    Json::Value getJSON(uint32_t timerFlags,
+                        Result result,
+                        int itersPerTiming = 1);
+
+private:
+    int fMaxNumTimings;
+    int fCurrTiming;
+
+    SkAutoTArray<double> fWallTimes;
+    SkAutoTArray<double> fTruncatedWallTimes;
+    SkAutoTArray<double> fCpuTimes;
+    SkAutoTArray<double> fTruncatedCpuTimes;
+    SkAutoTArray<double> fGpuTimes;
+};
+
+#endif // TimerData_DEFINED