mozilla
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moz-skia
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moz-skia/bench/DashBench.cpp

361 строка
11 KiB
C++
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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 "SkBenchmark.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkDashPathEffect.h"
#include "SkPaint.h"
#include "SkPath.h"
#include "SkRandom.h"
#include "SkString.h"
#include "SkTDArray.h"
/*
* Cases to consider:
*
* 1. antialiasing on/off (esp. width <= 1)
* 2. strokewidth == 0, 1, 2
* 3. hline, vline, diagonal, rect, oval
* 4. dots [1,1] ([N,N] where N=strokeWidth?) or arbitrary (e.g. [2,1] or [1,2,3,2])
*/
static void path_hline(SkPath* path) {
path->moveTo(SkIntToScalar(10), SkIntToScalar(10));
path->lineTo(SkIntToScalar(600), SkIntToScalar(10));
}
class DashBench : public SkBenchmark {
protected:
SkString fName;
SkTDArray<SkScalar> fIntervals;
int fWidth;
SkPoint fPts[2];
bool fDoClip;
enum {
N = SkBENCHLOOP(100)
};
public:
DashBench(void* param, const SkScalar intervals[], int count, int width,
bool doClip = false) : INHERITED(param) {
fIntervals.append(count, intervals);
for (int i = 0; i < count; ++i) {
fIntervals[i] *= width;
}
fWidth = width;
fName.printf("dash_%d_%s", width, doClip ? "clipped" : "noclip");
fDoClip = doClip;
fPts[0].set(SkIntToScalar(10), SkIntToScalar(10));
fPts[1].set(SkIntToScalar(600), SkIntToScalar(10));
}
virtual void makePath(SkPath* path) {
path_hline(path);
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return fName.c_str();
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkPaint paint;
this->setupPaint(&paint);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkIntToScalar(fWidth));
paint.setAntiAlias(false);
SkPath path;
this->makePath(&path);
paint.setPathEffect(new SkDashPathEffect(fIntervals.begin(),
fIntervals.count(), 0))->unref();
if (fDoClip) {
SkRect r = path.getBounds();
r.inset(-SkIntToScalar(20), -SkIntToScalar(20));
// now move it so we don't intersect
r.offset(0, r.height() * 3 / 2);
canvas->clipRect(r);
}
this->handlePath(canvas, path, paint, N);
}
virtual void handlePath(SkCanvas* canvas, const SkPath& path,
const SkPaint& paint, int N) {
for (int i = 0; i < N; ++i) {
// canvas->drawPoints(SkCanvas::kLines_PointMode, 2, fPts, paint);
canvas->drawPath(path, paint);
}
}
private:
typedef SkBenchmark INHERITED;
};
class RectDashBench : public DashBench {
public:
RectDashBench(void* param, const SkScalar intervals[], int count, int width, bool doClip = false)
: INHERITED(param, intervals, count, width) {
fName.append("_rect");
}
protected:
virtual void handlePath(SkCanvas* canvas, const SkPath& path,
const SkPaint& paint, int N) SK_OVERRIDE {
SkPoint pts[2];
if (!path.isLine(pts) || pts[0].fY != pts[1].fY) {
this->INHERITED::handlePath(canvas, path, paint, N);
} else {
SkRect rect;
rect.fLeft = pts[0].fX;
rect.fTop = pts[0].fY - paint.getStrokeWidth() / 2;
rect.fRight = rect.fLeft + SkIntToScalar(fWidth);
rect.fBottom = rect.fTop + paint.getStrokeWidth();
SkPaint p(paint);
p.setStyle(SkPaint::kFill_Style);
p.setPathEffect(NULL);
int count = SkScalarRoundToInt((pts[1].fX - pts[0].fX) / (2*fWidth));
SkScalar dx = SkIntToScalar(2 * fWidth);
for (int i = 0; i < N*10; ++i) {
SkRect r = rect;
for (int j = 0; j < count; ++j) {
canvas->drawRect(r, p);
r.offset(dx, 0);
}
}
}
}
private:
typedef DashBench INHERITED;
};
static void make_unit_star(SkPath* path, int n) {
SkScalar rad = -SK_ScalarPI / 2;
const SkScalar drad = (n >> 1) * SK_ScalarPI * 2 / n;
path->moveTo(0, -SK_Scalar1);
for (int i = 1; i < n; i++) {
rad += drad;
SkScalar cosV, sinV = SkScalarSinCos(rad, &cosV);
path->lineTo(cosV, sinV);
}
path->close();
}
static void make_poly(SkPath* path) {
make_unit_star(path, 9);
SkMatrix matrix;
matrix.setScale(SkIntToScalar(100), SkIntToScalar(100));
path->transform(matrix);
}
static void make_quad(SkPath* path) {
SkScalar x0 = SkIntToScalar(10);
SkScalar y0 = SkIntToScalar(10);
path->moveTo(x0, y0);
path->quadTo(x0, y0 + 400 * SK_Scalar1,
x0 + 600 * SK_Scalar1, y0 + 400 * SK_Scalar1);
}
static void make_cubic(SkPath* path) {
SkScalar x0 = SkIntToScalar(10);
SkScalar y0 = SkIntToScalar(10);
path->moveTo(x0, y0);
path->cubicTo(x0, y0 + 400 * SK_Scalar1,
x0 + 600 * SK_Scalar1, y0 + 400 * SK_Scalar1,
x0 + 600 * SK_Scalar1, y0);
}
class MakeDashBench : public SkBenchmark {
SkString fName;
SkPath fPath;
SkAutoTUnref<SkPathEffect> fPE;
enum {
N = SkBENCHLOOP(400)
};
public:
MakeDashBench(void* param, void (*proc)(SkPath*), const char name[]) : INHERITED(param) {
fName.printf("makedash_%s", name);
proc(&fPath);
SkScalar vals[] = { SkIntToScalar(4), SkIntToScalar(4) };
fPE.reset(new SkDashPathEffect(vals, 2, 0));
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return fName.c_str();
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkPath dst;
for (int i = 0; i < N; ++i) {
SkStrokeRec rec(SkStrokeRec::kHairline_InitStyle);
fPE->filterPath(&dst, fPath, &rec);
dst.rewind();
}
}
private:
typedef SkBenchmark INHERITED;
};
/*
* We try to special case square dashes (intervals are equal to strokewidth).
*/
class DashLineBench : public SkBenchmark {
SkString fName;
SkScalar fStrokeWidth;
bool fIsRound;
SkAutoTUnref<SkPathEffect> fPE;
enum {
N = SkBENCHLOOP(200)
};
public:
DashLineBench(void* param, SkScalar width, bool isRound) : INHERITED(param) {
fName.printf("dashline_%g_%s", SkScalarToFloat(width), isRound ? "circle" : "square");
fStrokeWidth = width;
fIsRound = isRound;
SkScalar vals[] = { SK_Scalar1, SK_Scalar1 };
fPE.reset(new SkDashPathEffect(vals, 2, 0));
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return fName.c_str();
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkPaint paint;
this->setupPaint(&paint);
paint.setStrokeWidth(fStrokeWidth);
paint.setStrokeCap(fIsRound ? SkPaint::kRound_Cap : SkPaint::kSquare_Cap);
paint.setPathEffect(fPE);
for (int i = 0; i < N; ++i) {
canvas->drawLine(10 * SK_Scalar1, 10 * SK_Scalar1,
640 * SK_Scalar1, 10 * SK_Scalar1, paint);
}
}
private:
typedef SkBenchmark INHERITED;
};
class DrawPointsDashingBench : public SkBenchmark {
SkString fName;
int fStrokeWidth;
bool fDoAA;
SkAutoTUnref<SkPathEffect> fPathEffect;
enum {
N = SkBENCHLOOP(480)
};
public:
DrawPointsDashingBench(void* param, int dashLength, int strokeWidth, bool doAA)
: INHERITED(param) {
fName.printf("drawpointsdash_%d_%d%s", dashLength, strokeWidth, doAA ? "_aa" : "_bw");
fStrokeWidth = strokeWidth;
fDoAA = doAA;
SkScalar vals[] = { SkIntToScalar(dashLength), SkIntToScalar(dashLength) };
fPathEffect.reset(new SkDashPathEffect(vals, 2, SK_Scalar1, false));
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return fName.c_str();
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkPaint p;
this->setupPaint(&p);
p.setColor(SK_ColorBLACK);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SkIntToScalar(fStrokeWidth));
p.setPathEffect(fPathEffect);
p.setAntiAlias(fDoAA);
SkPoint pts[2] = {
{ SkIntToScalar(10), 0 },
{ SkIntToScalar(640), 0 }
};
for (int i = 0; i < N; ++i) {
pts[0].fY = pts[1].fY = SkIntToScalar(i % 480);
canvas->drawPoints(SkCanvas::kLines_PointMode, 2, pts, p);
}
}
private:
typedef SkBenchmark INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
static const SkScalar gDots[] = { SK_Scalar1, SK_Scalar1 };
#define PARAM(array) array, SK_ARRAY_COUNT(array)
static SkBenchmark* gF0(void* p) { return new DashBench(p, PARAM(gDots), 0); }
static SkBenchmark* gF1(void* p) { return new DashBench(p, PARAM(gDots), 1); }
static SkBenchmark* gF2(void* p) { return new DashBench(p, PARAM(gDots), 1, true); }
static SkBenchmark* gF3(void* p) { return new DashBench(p, PARAM(gDots), 4); }
static SkBenchmark* gF4(void* p) { return new MakeDashBench(p, make_poly, "poly"); }
static SkBenchmark* gF5(void* p) { return new MakeDashBench(p, make_quad, "quad"); }
static SkBenchmark* gF6(void* p) { return new MakeDashBench(p, make_cubic, "cubic"); }
static SkBenchmark* gF700(void* p) { return new DashLineBench(p, 0, false); }
static SkBenchmark* gF710(void* p) { return new DashLineBench(p, SK_Scalar1, false); }
static SkBenchmark* gF720(void* p) { return new DashLineBench(p, 2 * SK_Scalar1, false); }
static SkBenchmark* gF701(void* p) { return new DashLineBench(p, 0, true); }
static SkBenchmark* gF711(void* p) { return new DashLineBench(p, SK_Scalar1, true); }
static SkBenchmark* gF721(void* p) { return new DashLineBench(p, 2 * SK_Scalar1, true); }
static SkBenchmark* gF8(void* p) { return new DrawPointsDashingBench(p, 1, 1, false); }
static SkBenchmark* gF9(void* p) { return new DrawPointsDashingBench(p, 1, 1, true); }
static SkBenchmark* gF10(void* p) { return new DrawPointsDashingBench(p, 3, 1, false); }
static SkBenchmark* gF11(void* p) { return new DrawPointsDashingBench(p, 3, 1, true); }
static SkBenchmark* gF12(void* p) { return new DrawPointsDashingBench(p, 5, 5, false); }
static SkBenchmark* gF13(void* p) { return new DrawPointsDashingBench(p, 5, 5, true); }
static BenchRegistry gR0(gF0);
static BenchRegistry gR1(gF1);
static BenchRegistry gR2(gF2);
static BenchRegistry gR3(gF3);
static BenchRegistry gR4(gF4);
static BenchRegistry gR5(gF5);
static BenchRegistry gR6(gF6);
static BenchRegistry gR700(gF700);
static BenchRegistry gR710(gF710);
static BenchRegistry gR720(gF720);
static BenchRegistry gR701(gF701);
static BenchRegistry gR711(gF711);
static BenchRegistry gR721(gF721);
static BenchRegistry gR8(gF8);
static BenchRegistry gR9(gF9);
static BenchRegistry gR10(gF10);
static BenchRegistry gR11(gF11);
static BenchRegistry gR12(gF12);
static BenchRegistry gR13(gF13);
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