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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "SkGeometry.h"
#include "SkRandom.h"
#include "SkRect.h"
class GeometryBench : public Benchmark {
public:
GeometryBench(const char suffix[]) : fVolatileInt(0) {
fName.printf("geo_%s", suffix);
}
const char* onGetName() override {
return fName.c_str();
}
bool isSuitableFor(Backend backend) override {
return kNonRendering_Backend == backend;
}
protected:
volatile int fVolatileInt;
/**
* Subclasses can call this to try to defeat the optimizer (with some result of their
* inner loop), since it will fool the compiler into assuming that "n" is actually
* needed somewhere, and since this method is not const, the member fields cannot
* be assumed to be const before and after the call.
*/
virtual void virtualCallToFoilOptimizers(int n) { fVolatileInt += n; }
private:
SkString fName;
};
class GeoRectBench : public GeometryBench {
public:
GeoRectBench(const char suffix[]) : GeometryBench(suffix) {}
protected:
SkRect fRects[2048];
virtual void onPreDraw() {
const SkScalar min = -100;
const SkScalar max = 100;
SkRandom rand;
for (size_t i = 0; i < SK_ARRAY_COUNT(fRects); ++i) {
SkScalar x = rand.nextRangeScalar(min, max);
SkScalar y = rand.nextRangeScalar(min, max);
SkScalar w = rand.nextRangeScalar(min, max);
SkScalar h = rand.nextRangeScalar(min, max);
fRects[i].setXYWH(x, y, w, h);
}
}
};
class GeoRectBench_intersect : public GeoRectBench {
public:
GeoRectBench_intersect() : GeoRectBench("rect_intersect") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
for (int outer = 0; outer < loops; ++outer) {
int count = 0;
for (size_t i = 0; i < SK_ARRAY_COUNT(fRects); ++i) {
SkRect r = fRects[0];
count += r.intersect(fRects[i]);
}
this->virtualCallToFoilOptimizers(count);
}
}
};
class GeoRectBench_intersect_rect : public GeoRectBench {
public:
GeoRectBench_intersect_rect() : GeoRectBench("rect_intersect_rect") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
for (int outer = 0; outer < loops; ++outer) {
int count = 0;
SkRect r;
for (size_t i = 0; i < SK_ARRAY_COUNT(fRects); ++i) {
count += r.intersect(fRects[0], fRects[i]);
}
this->virtualCallToFoilOptimizers(count);
}
}
};
class GeoRectBench_Intersects : public GeoRectBench {
public:
GeoRectBench_Intersects() : GeoRectBench("rect_Intersects") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
for (int outer = 0; outer < loops; ++outer) {
int count = 0;
for (size_t i = 0; i < SK_ARRAY_COUNT(fRects); ++i) {
count += SkRect::Intersects(fRects[0], fRects[i]);
}
this->virtualCallToFoilOptimizers(count);
}
}
};
class GeoRectBench_sort : public GeoRectBench {
public:
GeoRectBench_sort() : GeoRectBench("rect_sort") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
for (int outer = 0; outer < loops; ++outer) {
for (size_t i = 0; i < SK_ARRAY_COUNT(fRects); ++i) {
fRects[i].sort();
}
}
}
};
DEF_BENCH( return new GeoRectBench_intersect; )
DEF_BENCH( return new GeoRectBench_intersect_rect; )
DEF_BENCH( return new GeoRectBench_Intersects; )
DEF_BENCH( return new GeoRectBench_sort; )
///////////////////////////////////////////////////////////////////////////////////////////////////
class QuadBenchBase : public GeometryBench {
protected:
SkPoint fPts[4];
public:
QuadBenchBase(const char name[]) : GeometryBench(name) {
SkRandom rand;
for (int i = 0; i < 4; ++i) {
fPts[i].set(rand.nextUScalar1(), rand.nextUScalar1());
}
}
};
class EvalQuadAt0 : public QuadBenchBase {
public:
EvalQuadAt0() : QuadBenchBase("evalquadat0") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
SkPoint result;
for (int outer = 0; outer < loops; ++outer) {
SkEvalQuadAt(fPts, 0.5f, &result);
SkEvalQuadAt(fPts, 0.5f, &result);
SkEvalQuadAt(fPts, 0.5f, &result);
SkEvalQuadAt(fPts, 0.5f, &result);
}
}
};
DEF_BENCH( return new EvalQuadAt0; )
class EvalQuadAt1 : public QuadBenchBase {
public:
EvalQuadAt1() : QuadBenchBase("evalquadat1") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
SkPoint result;
for (int outer = 0; outer < loops; ++outer) {
result = SkEvalQuadAt(fPts, 0.5f);
result = SkEvalQuadAt(fPts, 0.5f);
result = SkEvalQuadAt(fPts, 0.5f);
result = SkEvalQuadAt(fPts, 0.5f);
}
}
};
DEF_BENCH( return new EvalQuadAt1; )
////////
class EvalQuadTangentAt0 : public QuadBenchBase {
public:
EvalQuadTangentAt0() : QuadBenchBase("evalquadtangentat0") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
SkPoint result;
for (int outer = 0; outer < loops; ++outer) {
SkEvalQuadAt(fPts, 0.5f, NULL, &result);
SkEvalQuadAt(fPts, 0.5f, NULL, &result);
SkEvalQuadAt(fPts, 0.5f, NULL, &result);
SkEvalQuadAt(fPts, 0.5f, NULL, &result);
}
}
};
DEF_BENCH( return new EvalQuadTangentAt0; )
class EvalQuadTangentAt1 : public QuadBenchBase {
public:
EvalQuadTangentAt1() : QuadBenchBase("evalquadtangentat1") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
SkPoint result;
for (int outer = 0; outer < loops; ++outer) {
result = SkEvalQuadTangentAt(fPts, 0.5f);
result = SkEvalQuadTangentAt(fPts, 0.5f);
result = SkEvalQuadTangentAt(fPts, 0.5f);
result = SkEvalQuadTangentAt(fPts, 0.5f);
}
}
};
DEF_BENCH( return new EvalQuadTangentAt1; )
////////
class ChopQuadAt : public QuadBenchBase {
public:
ChopQuadAt() : QuadBenchBase("chopquadat") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
SkPoint dst[5];
for (int outer = 0; outer < loops; ++outer) {
SkChopQuadAt(fPts, dst, 0.5f);
SkChopQuadAt(fPts, dst, 0.5f);
SkChopQuadAt(fPts, dst, 0.5f);
SkChopQuadAt(fPts, dst, 0.5f);
}
}
};
DEF_BENCH( return new ChopQuadAt; )
class ChopCubicAt : public QuadBenchBase {
public:
ChopCubicAt() : QuadBenchBase("chopcubicat0") {}
protected:
void onDraw(const int loops, SkCanvas* canvas) override {
SkPoint dst[7];
for (int outer = 0; outer < loops; ++outer) {
SkChopCubicAt(fPts, dst, 0.5f);
SkChopCubicAt(fPts, dst, 0.5f);
SkChopCubicAt(fPts, dst, 0.5f);
SkChopCubicAt(fPts, dst, 0.5f);
}
}
};
DEF_BENCH( return new ChopCubicAt; )
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