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      1 
      2 /*
      3  * Copyright 2012 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 #ifndef TimerData_DEFINED
     10 #define TimerData_DEFINED
     11 
     12 #include "SkString.h"
     13 #include "SkTemplates.h"
     14 
     15 
     16 class BenchTimer;
     17 
     18 class TimerData {
     19 public:
     20     /**
     21      * Constructs a TimerData to hold at most maxNumTimings sets of elapsed timer values.
     22      **/
     23     explicit TimerData(int maxNumTimings);
     24 
     25     /**
     26      * Collect times from the BenchTimer for an iteration. It will fail if called more often than
     27      * indicated in the constructor.
     28      *
     29      * @param BenchTimer Must not be null.
     30      */
     31     bool appendTimes(BenchTimer*);
     32 
     33     enum Result {
     34         kMin_Result,
     35         kAvg_Result,
     36         kPerIter_Result
     37     };
     38 
     39     enum TimerFlags {
     40         kWall_Flag              = 0x1,
     41         kTruncatedWall_Flag     = 0x2,
     42         kCpu_Flag               = 0x4,
     43         kTruncatedCpu_Flag      = 0x8,
     44         kGpu_Flag               = 0x10
     45     };
     46 
     47     /**
     48      * Gets the timer data results as a string.
     49      * @param doubleFormat printf-style format for doubles (e.g. "%02d")
     50      * @param result the type of result desired
     51      * @param the name of the config being timed (prepended to results string)
     52      * @param timerFlags bitfield of TimerFlags values indicating which timers should be reported.
     53      * @param itersPerTiming the number of test/bench iterations that correspond to each
     54      *        appendTimes() call, 1 when appendTimes is called for each iteration.
     55      */
     56     SkString getResult(const char* doubleFormat,
     57                        Result result,
     58                        const char* configName,
     59                        uint32_t timerFlags,
     60                        int itersPerTiming = 1);
     61 
     62 private:
     63     int fMaxNumTimings;
     64     int fCurrTiming;
     65 
     66     SkAutoTArray<double> fWallTimes;
     67     SkAutoTArray<double> fTruncatedWallTimes;
     68     SkAutoTArray<double> fCpuTimes;
     69     SkAutoTArray<double> fTruncatedCpuTimes;
     70     SkAutoTArray<double> fGpuTimes;
     71 };
     72 
     73 #endif // TimerData_DEFINED
     74