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/*
* Copyright 2011 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 "SkAAClip.h"
#include "SkCanvas.h"
#include "SkPath.h"
#include "SkRandom.h"
#include "SkRegion.h"
#include "SkString.h"
////////////////////////////////////////////////////////////////////////////////
// This bench tests out AA/BW clipping via canvas' clipPath and clipRect calls
class AAClipBench : public Benchmark {
SkString fName;
SkPath fClipPath;
SkRect fClipRect;
SkRect fDrawRect;
bool fDoPath;
bool fDoAA;
public:
AAClipBench(bool doPath, bool doAA)
: fDoPath(doPath)
, fDoAA(doAA) {
fName.printf("aaclip_%s_%s",
doPath ? "path" : "rect",
doAA ? "AA" : "BW");
fClipRect.set(10.5f, 10.5f,
50.5f, 50.5f);
fClipPath.addRoundRect(fClipRect, SkIntToScalar(10), SkIntToScalar(10));
fDrawRect.set(SkIntToScalar(0), SkIntToScalar(0),
SkIntToScalar(100), SkIntToScalar(100));
SkASSERT(fClipPath.isConvex());
}
protected:
virtual const char* onGetName() { return fName.c_str(); }
virtual void onDraw(int loops, SkCanvas* canvas) {
SkPaint paint;
this->setupPaint(&paint);
for (int i = 0; i < loops; ++i) {
// jostle the clip regions each time to prevent caching
fClipRect.offset((i % 2) == 0 ? SkIntToScalar(10) : SkIntToScalar(-10), 0);
fClipPath.reset();
fClipPath.addRoundRect(fClipRect,
SkIntToScalar(5), SkIntToScalar(5));
SkASSERT(fClipPath.isConvex());
canvas->save();
#if 1
if (fDoPath) {
canvas->clipPath(fClipPath, SkRegion::kReplace_Op, fDoAA);
} else {
canvas->clipRect(fClipRect, SkRegion::kReplace_Op, fDoAA);
}
canvas->drawRect(fDrawRect, paint);
#else
// this path tests out directly draw the clip primitive
// use it to comparing just drawing the clip vs. drawing using
// the clip
if (fDoPath) {
canvas->drawPath(fClipPath, paint);
} else {
canvas->drawRect(fClipRect, paint);
}
#endif
canvas->restore();
}
}
private:
typedef Benchmark INHERITED;
};
////////////////////////////////////////////////////////////////////////////////
// This bench tests out nested clip stacks. It is intended to simulate
// how WebKit nests clips.
class NestedAAClipBench : public Benchmark {
SkString fName;
bool fDoAA;
SkRect fDrawRect;
SkRandom fRandom;
static const int kNestingDepth = 3;
static const int kImageSize = 400;
SkPoint fSizes[kNestingDepth+1];
public:
NestedAAClipBench(bool doAA) : fDoAA(doAA) {
fName.printf("nested_aaclip_%s", doAA ? "AA" : "BW");
fDrawRect = SkRect::MakeLTRB(0, 0,
SkIntToScalar(kImageSize),
SkIntToScalar(kImageSize));
fSizes[0].set(SkIntToScalar(kImageSize), SkIntToScalar(kImageSize));
for (int i = 1; i < kNestingDepth+1; ++i) {
fSizes[i].set(fSizes[i-1].fX/2, fSizes[i-1].fY/2);
}
}
protected:
virtual const char* onGetName() { return fName.c_str(); }
void recurse(SkCanvas* canvas,
int depth,
const SkPoint& offset) {
canvas->save();
SkRect temp = SkRect::MakeLTRB(0, 0,
fSizes[depth].fX, fSizes[depth].fY);
temp.offset(offset);
SkPath path;
path.addRoundRect(temp, SkIntToScalar(3), SkIntToScalar(3));
SkASSERT(path.isConvex());
canvas->clipPath(path,
0 == depth ? SkRegion::kReplace_Op :
SkRegion::kIntersect_Op,
fDoAA);
if (kNestingDepth == depth) {
// we only draw the draw rect at the lowest nesting level
SkPaint paint;
paint.setColor(0xff000000 | fRandom.nextU());
canvas->drawRect(fDrawRect, paint);
} else {
SkPoint childOffset = offset;
this->recurse(canvas, depth+1, childOffset);
childOffset += fSizes[depth+1];
this->recurse(canvas, depth+1, childOffset);
childOffset.fX = offset.fX + fSizes[depth+1].fX;
childOffset.fY = offset.fY;
this->recurse(canvas, depth+1, childOffset);
childOffset.fX = offset.fX;
childOffset.fY = offset.fY + fSizes[depth+1].fY;
this->recurse(canvas, depth+1, childOffset);
}
canvas->restore();
}
virtual void onDraw(int loops, SkCanvas* canvas) {
for (int i = 0; i < loops; ++i) {
SkPoint offset = SkPoint::Make(0, 0);
this->recurse(canvas, 0, offset);
}
}
private:
typedef Benchmark INHERITED;
};
////////////////////////////////////////////////////////////////////////////////
class AAClipBuilderBench : public Benchmark {
SkString fName;
SkPath fPath;
SkRect fRect;
SkRegion fRegion;
bool fDoPath;
bool fDoAA;
public:
AAClipBuilderBench(bool doPath, bool doAA) {
fDoPath = doPath;
fDoAA = doAA;
fName.printf("aaclip_build_%s_%s", doPath ? "path" : "rect",
doAA ? "AA" : "BW");
fRegion.setRect(0, 0, 640, 480);
fRect.set(fRegion.getBounds());
fRect.inset(SK_Scalar1/4, SK_Scalar1/4);
fPath.addRoundRect(fRect, SkIntToScalar(20), SkIntToScalar(20));
}
protected:
virtual const char* onGetName() { return fName.c_str(); }
virtual void onDraw(int loops, SkCanvas*) {
SkPaint paint;
this->setupPaint(&paint);
for (int i = 0; i < loops; ++i) {
SkAAClip clip;
if (fDoPath) {
clip.setPath(fPath, &fRegion, fDoAA);
} else {
clip.setRect(fRect, fDoAA);
}
}
}
private:
typedef Benchmark INHERITED;
};
////////////////////////////////////////////////////////////////////////////////
class AAClipRegionBench : public Benchmark {
public:
AAClipRegionBench() {
SkPath path;
// test conversion of a complex clip to a aaclip
path.addCircle(0, 0, SkIntToScalar(200));
path.addCircle(0, 0, SkIntToScalar(180));
// evenodd means we've constructed basically a stroked circle
path.setFillType(SkPath::kEvenOdd_FillType);
SkIRect bounds;
path.getBounds().roundOut(&bounds);
fRegion.setPath(path, SkRegion(bounds));
}
protected:
virtual const char* onGetName() { return "aaclip_setregion"; }
virtual void onDraw(int loops, SkCanvas*) {
for (int i = 0; i < loops; ++i) {
SkAAClip clip;
clip.setRegion(fRegion);
}
}
private:
SkRegion fRegion;
typedef Benchmark INHERITED;
};
////////////////////////////////////////////////////////////////////////////////
DEF_BENCH(return new AAClipBuilderBench(false, false);)
DEF_BENCH(return new AAClipBuilderBench(false, true);)
DEF_BENCH(return new AAClipBuilderBench(true, false);)
DEF_BENCH(return new AAClipBuilderBench(true, true);)
DEF_BENCH(return new AAClipRegionBench();)
DEF_BENCH(return new AAClipBench(false, false);)
DEF_BENCH(return new AAClipBench(false, true);)
DEF_BENCH(return new AAClipBench(true, false);)
DEF_BENCH(return new AAClipBench(true, true);)
DEF_BENCH(return new NestedAAClipBench(false);)
DEF_BENCH(return new NestedAAClipBench(true);)
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