add bench for giant dashed lines, to test future optimizations for culling
git-svn-id: http://skia.googlecode.com/svn/trunk@7368 2bbb7eff-a529-9590-31e7-b0007b416f81
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@ -311,6 +311,84 @@ protected:
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private:
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typedef SkBenchmark INHERITED;
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};
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class GiantDashBench : public SkBenchmark {
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SkString fName;
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SkPoint fPts[2];
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SkAutoTUnref<SkPathEffect> fPathEffect;
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enum {
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N = SkBENCHLOOP(10)
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};
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public:
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enum LineType {
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kHori_LineType,
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kVert_LineType,
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kDiag_LineType
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};
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static const char* LineTypeName(LineType lt) {
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static const char* gNames[] = { "hori", "vert", "diag" };
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SkASSERT((size_t)lt <= SK_ARRAY_COUNT(gNames));
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return gNames[lt];
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}
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GiantDashBench(void* param, LineType lt) : INHERITED(param) {
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fName.printf("giantdashline_%s", LineTypeName(lt));
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// deliberately pick intervals that won't be caught by asPoints(), so
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// we can test the filterPath code-path.
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const SkScalar intervals[] = { 2, 1 };
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fPathEffect.reset(new SkDashPathEffect(intervals,
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SK_ARRAY_COUNT(intervals), 0));
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SkScalar cx = 640 / 2; // center X
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SkScalar cy = 480 / 2; // center Y
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SkMatrix matrix;
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switch (lt) {
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case kHori_LineType:
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matrix.setIdentity();
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break;
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case kVert_LineType:
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matrix.setRotate(90, cx, cy);
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break;
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case kDiag_LineType:
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matrix.setRotate(45, cx, cy);
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break;
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}
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const SkScalar overshoot = 10*1000;
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const SkPoint pts[2] = {
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{ -overshoot, cy }, { 640 + overshoot, cy }
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};
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matrix.mapPoints(fPts, pts, 2);
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}
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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return fName.c_str();
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}
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virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
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SkPaint p;
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this->setupPaint(&p);
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p.setStyle(SkPaint::kStroke_Style);
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p.setStrokeWidth(1);
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p.setPathEffect(fPathEffect);
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for (int i = 0; i < N; ++i) {
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canvas->drawPoints(SkCanvas::kLines_PointMode, 2, fPts, p);
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}
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}
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private:
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typedef SkBenchmark INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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static const SkScalar gDots[] = { SK_Scalar1, SK_Scalar1 };
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@ -337,3 +415,7 @@ DEF_BENCH( return new DrawPointsDashingBench(p, 3, 1, false); )
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DEF_BENCH( return new DrawPointsDashingBench(p, 3, 1, true); )
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DEF_BENCH( return new DrawPointsDashingBench(p, 5, 5, false); )
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DEF_BENCH( return new DrawPointsDashingBench(p, 5, 5, true); )
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DEF_BENCH( return new GiantDashBench(p, GiantDashBench::kHori_LineType); )
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DEF_BENCH( return new GiantDashBench(p, GiantDashBench::kVert_LineType); )
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DEF_BENCH( return new GiantDashBench(p, GiantDashBench::kDiag_LineType); )
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