Revert of SkTime::GetNSecs()

tools/timer/TimerData.cpp

Index: tools/timer/TimerData.cpp
diff --git a/tools/timer/TimerData.cpp b/tools/timer/TimerData.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..d1460f73fdddac5b9612be27c10e00ac4630aa7f
--- /dev/null
+++ b/tools/timer/TimerData.cpp
@@ -0,0 +1,220 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include "TimerData.h"
+
+#include "Timer.h"
+#include <limits>
+
+TimerData::TimerData(int maxNumTimings)
+    : fMaxNumTimings(maxNumTimings)
+    , fCurrTiming(0)
+    , fWallTimes(maxNumTimings)
+    , fTruncatedWallTimes(maxNumTimings)
+    , fCpuTimes(maxNumTimings)
+    , fTruncatedCpuTimes(maxNumTimings)
+    , fGpuTimes(maxNumTimings) {}
+
+bool TimerData::appendTimes(Timer* timer) {
+    SkASSERT(timer != nullptr);
+    if (fCurrTiming >= fMaxNumTimings) {
+        return false;
+    }
+
+    fWallTimes[fCurrTiming] = timer->fWall;
+    fTruncatedWallTimes[fCurrTiming] = timer->fTruncatedWall;
+    fCpuTimes[fCurrTiming] = timer->fCpu;
+    fTruncatedCpuTimes[fCurrTiming] = timer->fTruncatedCpu;
+    fGpuTimes[fCurrTiming] = timer->fGpu;
+
+    ++fCurrTiming;
+
+    return true;
+}
+
+SkString TimerData::getResult(const char* doubleFormat,
+                              Result result,
+                              const char *configName,
+                              uint32_t timerFlags,
+                              int itersPerTiming) {
+    SkASSERT(itersPerTiming >= 1);
+
+    if (!fCurrTiming) {
+        return SkString("");
+    }
+
+    int numTimings = fCurrTiming;
+
+    SkString wallStr(" msecs = ");
+    SkString truncWallStr(" Wmsecs = ");
+    SkString cpuStr(" cmsecs = ");
+    SkString truncCpuStr(" Cmsecs = ");
+    SkString gpuStr(" gmsecs = ");
+
+    double wallMin = std::numeric_limits<double>::max();
+    double truncWallMin = std::numeric_limits<double>::max();
+    double cpuMin = std::numeric_limits<double>::max();
+    double truncCpuMin = std::numeric_limits<double>::max();
+    double gpuMin = std::numeric_limits<double>::max();
+
+    double wallSum = 0;
+    double truncWallSum = 0;
+    double cpuSum = 0;
+    double truncCpuSum = 0;
+    double gpuSum = 0;
+
+    for (int i = 0; i < numTimings; ++i) {
+        if (kPerIter_Result == result) {
+            wallStr.appendf(doubleFormat, fWallTimes[i] / itersPerTiming);
+            truncWallStr.appendf(doubleFormat, fTruncatedWallTimes[i] / itersPerTiming);
+            cpuStr.appendf(doubleFormat, fCpuTimes[i] / itersPerTiming);
+            truncCpuStr.appendf(doubleFormat, fTruncatedCpuTimes[i] / itersPerTiming);
+            gpuStr.appendf(doubleFormat, fGpuTimes[i] / itersPerTiming);
+
+            if (i != numTimings - 1) {
+                static const char kSep[] = ", ";
+                wallStr.append(kSep);
+                truncWallStr.append(kSep);
+                cpuStr.append(kSep);
+                truncCpuStr.append(kSep);
+                gpuStr.append(kSep);
+            }
+        } else if (kMin_Result == result) {
+            wallMin = SkTMin(wallMin, fWallTimes[i]);
+            truncWallMin = SkTMin(truncWallMin, fTruncatedWallTimes[i]);
+            cpuMin = SkTMin(cpuMin, fCpuTimes[i]);
+            truncCpuMin = SkTMin(truncCpuMin, fTruncatedCpuTimes[i]);
+            gpuMin = SkTMin(gpuMin, fGpuTimes[i]);
+        } else {
+            SkASSERT(kAvg_Result == result);
+            wallSum += fWallTimes[i];
+            truncWallSum += fTruncatedWallTimes[i];
+            cpuSum += fCpuTimes[i];
+            truncCpuSum += fTruncatedCpuTimes[i];
+        }
+
+        // We always track the GPU sum because whether it is non-zero indicates if valid gpu times
+        // were recorded at all.
+        gpuSum += fGpuTimes[i];
+    }
+
+    if (kMin_Result == result) {
+        wallStr.appendf(doubleFormat, wallMin / itersPerTiming);
+        truncWallStr.appendf(doubleFormat, truncWallMin / itersPerTiming);
+        cpuStr.appendf(doubleFormat, cpuMin / itersPerTiming);
+        truncCpuStr.appendf(doubleFormat, truncCpuMin / itersPerTiming);
+        gpuStr.appendf(doubleFormat, gpuMin / itersPerTiming);
+    } else if (kAvg_Result == result) {
+        int divisor = numTimings * itersPerTiming;
+        wallStr.appendf(doubleFormat, wallSum / divisor);
+        truncWallStr.appendf(doubleFormat, truncWallSum / divisor);
+        cpuStr.appendf(doubleFormat, cpuSum / divisor);
+        truncCpuStr.appendf(doubleFormat, truncCpuSum / divisor);
+        gpuStr.appendf(doubleFormat, gpuSum / divisor);
+    }
+
+    SkString str;
+    str.printf("  %4s:", configName);
+    if (timerFlags & kWall_Flag) {
+        str += wallStr;
+    }
+    if (timerFlags & kTruncatedWall_Flag) {
+        str += truncWallStr;
+    }
+    if (timerFlags & kCpu_Flag) {
+        str += cpuStr;
+    }
+    if (timerFlags & kTruncatedCpu_Flag) {
+        str += truncCpuStr;
+    }
+    if ((timerFlags & kGpu_Flag) && gpuSum > 0) {
+        str += gpuStr;
+    }
+    return str;
+}
+
+Json::Value TimerData::getJSON(uint32_t timerFlags,
+                               Result result,
+                               int itersPerTiming) {
+    SkASSERT(itersPerTiming >= 1);
+    Json::Value dataNode;
+    Json::Value wallNode, truncWall, cpuNode, truncCpu, gpuNode;
+    if (!fCurrTiming) {
+        return dataNode;
+    }
+
+    int numTimings = fCurrTiming;
+
+    double wallMin = std::numeric_limits<double>::max();
+    double truncWallMin = std::numeric_limits<double>::max();
+    double cpuMin = std::numeric_limits<double>::max();
+    double truncCpuMin = std::numeric_limits<double>::max();
+    double gpuMin = std::numeric_limits<double>::max();
+
+    double wallSum = 0;
+    double truncWallSum = 0;
+    double cpuSum = 0;
+    double truncCpuSum = 0;
+    double gpuSum = 0;
+
+    for (int i = 0; i < numTimings; ++i) {
+        if (kPerIter_Result == result) {
+            wallNode.append(fWallTimes[i] / itersPerTiming);
+            truncWall.append(fTruncatedWallTimes[i] / itersPerTiming);
+            cpuNode.append(fCpuTimes[i] / itersPerTiming);
+            truncCpu.append(fTruncatedCpuTimes[i] / itersPerTiming);
+            gpuNode.append(fGpuTimes[i] / itersPerTiming);
+        } else if (kMin_Result == result) {
+            wallMin = SkTMin(wallMin, fWallTimes[i]);
+            truncWallMin = SkTMin(truncWallMin, fTruncatedWallTimes[i]);
+            cpuMin = SkTMin(cpuMin, fCpuTimes[i]);
+            truncCpuMin = SkTMin(truncCpuMin, fTruncatedCpuTimes[i]);
+            gpuMin = SkTMin(gpuMin, fGpuTimes[i]);
+        } else {
+            SkASSERT(kAvg_Result == result);
+            wallSum += fWallTimes[i];
+            truncWallSum += fTruncatedWallTimes[i];
+            cpuSum += fCpuTimes[i];
+            truncCpuSum += fTruncatedCpuTimes[i];
+        }
+
+        // We always track the GPU sum because whether it is non-zero indicates if valid gpu times
+        // were recorded at all.
+        gpuSum += fGpuTimes[i];
+    }
+
+    if (kMin_Result == result) {
+        wallNode.append(wallMin / itersPerTiming);
+        truncWall.append(truncWallMin / itersPerTiming);
+        cpuNode.append(cpuMin / itersPerTiming);
+        truncCpu.append(truncCpuMin / itersPerTiming);
+        gpuNode.append(gpuMin / itersPerTiming);
+    } else if (kAvg_Result == result) {
+        int divisor = numTimings * itersPerTiming;
+        wallNode.append(wallSum / divisor);
+        truncWall.append(truncWallSum / divisor);
+        cpuNode.append(cpuSum / divisor);
+        truncCpu.append(truncCpuSum / divisor);
+        gpuNode.append(gpuSum / divisor);
+    }
+
+    if (timerFlags & kWall_Flag) {
+        dataNode["wall"] = wallNode;
+    }
+    if (timerFlags & kTruncatedWall_Flag) {
+        dataNode["truncWall"] = truncWall;
+    }
+    if (timerFlags & kCpu_Flag) {
+        dataNode["cpu"] = cpuNode;
+    }
+    if (timerFlags & kTruncatedCpu_Flag) {
+        dataNode["trucCpu"] = truncCpu;
+    }
+    if ((timerFlags & kGpu_Flag) && gpuSum > 0) {
+        dataNode["gpu"] = gpuNode;
+    }
+    return dataNode;
+}