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      1 /*
      2  * Copyright 2012 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "SkBenchmark.h"
      9 #include "SkMatrix44.h"
     10 #include "SkRandom.h"
     11 #include "SkString.h"
     12 
     13 class Matrix44Bench : public SkBenchmark {
     14     SkString    fName;
     15     enum { N = 10000 };
     16 public:
     17     Matrix44Bench(void* param, const char name[]) : INHERITED(param) {
     18         fName.printf("matrix44_%s", name);
     19         fIsRendering = false;
     20     }
     21 
     22     virtual void performTest() = 0;
     23 
     24 protected:
     25     virtual int mulLoopCount() const { return 1; }
     26 
     27     virtual const char* onGetName() {
     28         return fName.c_str();
     29     }
     30 
     31     virtual void onDraw(SkCanvas*) {
     32         int n = SkBENCHLOOP(N * this->mulLoopCount());
     33         for (int i = 0; i < n; i++) {
     34             this->performTest();
     35         }
     36     }
     37 
     38 private:
     39     typedef SkBenchmark INHERITED;
     40 };
     41 
     42 class EqualsMatrix44Bench : public Matrix44Bench {
     43 public:
     44     EqualsMatrix44Bench(void* param) : INHERITED(param, "equals") {
     45         fM1.set(0, 0, 0);
     46         fM2.set(3, 3, 0);
     47     }
     48 protected:
     49     virtual void performTest() {
     50         for (int i = 0; i < 10; ++i) {
     51             (void) (fM0 == fM1);
     52             (void) (fM1 == fM2);
     53             (void) (fM2 == fM0);
     54         }
     55     }
     56 private:
     57     SkMatrix44 fM0, fM1, fM2;
     58     typedef Matrix44Bench INHERITED;
     59 };
     60 
     61 class PreScaleMatrix44Bench : public Matrix44Bench {
     62 public:
     63     PreScaleMatrix44Bench(void* param) : INHERITED(param, "prescale") {
     64         fX = fY = fZ = SkDoubleToMScalar(1.5);
     65     }
     66 protected:
     67     virtual void performTest() {
     68         fM0.reset();
     69         for (int i = 0; i < 10; ++i) {
     70             fM0.preScale(fX, fY, fZ);
     71         }
     72     }
     73 private:
     74     SkMatrix44 fM0;
     75     SkMScalar  fX, fY, fZ;
     76     typedef Matrix44Bench INHERITED;
     77 };
     78 
     79 class InvertMatrix44Bench : public Matrix44Bench {
     80 public:
     81     InvertMatrix44Bench(void* param) : INHERITED(param, "invert") {
     82     fM0.set(0, 0, -1.1);
     83     fM0.set(0, 1, 2.1);
     84     fM0.set(0, 2, -3.1);
     85     fM0.set(0, 3, 4.1);
     86     fM0.set(1, 0, 5.1);
     87     fM0.set(1, 1, -6.1);
     88     fM0.set(1, 2, 7.1);
     89     fM0.set(1, 3, 8.1);
     90     fM0.set(2, 0, -9.1);
     91     fM0.set(2, 1, 10.1);
     92     fM0.set(2, 2, 11.1);
     93     fM0.set(2, 3, -12.1);
     94     fM0.set(3, 0, -13.1);
     95     fM0.set(3, 1, 14.1);
     96     fM0.set(3, 2, -15.1);
     97     fM0.set(3, 3, 16.1);
     98     }
     99 protected:
    100     virtual void performTest() {
    101         for (int i = 0; i < 10; ++i) {
    102             fM0.invert(&fM1);
    103         }
    104     }
    105 private:
    106     SkMatrix44 fM0, fM1;
    107     typedef Matrix44Bench INHERITED;
    108 };
    109 
    110 class PostScaleMatrix44Bench : public Matrix44Bench {
    111 public:
    112     PostScaleMatrix44Bench(void* param) : INHERITED(param, "postscale") {
    113         fX = fY = fZ = SkDoubleToMScalar(1.5);
    114     }
    115 protected:
    116     virtual void performTest() {
    117         fM0.reset();
    118         for (int i = 0; i < 10; ++i) {
    119             fM0.postScale(fX, fY, fZ);
    120         }
    121     }
    122 private:
    123     SkMatrix44 fM0;
    124     SkMScalar  fX, fY, fZ;
    125     typedef Matrix44Bench INHERITED;
    126 };
    127 
    128 class SetConcatMatrix44Bench : public Matrix44Bench {
    129 public:
    130     SetConcatMatrix44Bench(void* param) : INHERITED(param, "setconcat") {
    131         fX = fY = fZ = SkDoubleToMScalar(1.5);
    132         fM1.setScale(fX, fY, fZ);
    133         fM2.setTranslate(fX, fY, fZ);
    134     }
    135 protected:
    136     virtual void performTest() {
    137         fM0.reset();    // just to normalize this test with prescale/postscale
    138         for (int i = 0; i < 10; ++i) {
    139             fM0.setConcat(fM1, fM2);
    140         }
    141     }
    142 private:
    143     SkMatrix44 fM0, fM1, fM2;
    144     SkMScalar  fX, fY, fZ;
    145     typedef Matrix44Bench INHERITED;
    146 };
    147 
    148 class GetTypeMatrix44Bench : public Matrix44Bench {
    149 public:
    150     GetTypeMatrix44Bench(void* param) : INHERITED(param, "gettype") {}
    151 protected:
    152     // Putting random generation of the matrix inside performTest()
    153     // would help us avoid anomalous runs, but takes up 25% or
    154     // more of the function time.
    155     virtual void performTest() {
    156         for (int i = 0; i < 20; ++i) {
    157             fMatrix.set(1, 2, 1);   // to invalidate the type-cache
    158             fMatrix.getType();
    159         }
    160     }
    161 private:
    162     SkMatrix44 fMatrix;
    163     typedef Matrix44Bench INHERITED;
    164 };
    165 
    166 DEF_BENCH( return new EqualsMatrix44Bench(p); )
    167 DEF_BENCH( return new PreScaleMatrix44Bench(p); )
    168 DEF_BENCH( return new PostScaleMatrix44Bench(p); )
    169 DEF_BENCH( return new InvertMatrix44Bench(p); )
    170 DEF_BENCH( return new SetConcatMatrix44Bench(p); )
    171 DEF_BENCH( return new GetTypeMatrix44Bench(p); )
    172