virtual void onDraw(SkCanvas* canvas) {
     SkPaint paint;
     this->setupPaint(&paint);
     paint.setAntiAlias(true);
     SkMWCRandom rand;
     for (int i = 0; i < SkBENCHLOOP(3); i++) {
         SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
                                   rand.nextUScalar1() * 400);
         paint.setImageFilter(fFilter);
         canvas->drawOval(r, paint);
     }
 }
Exemple #2
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static void rand_op(SkCanvas* canvas, SkMWCRandom& rand) {
    SkPaint paint;
    SkRect rect = SkRect::MakeWH(50, 50);

    SkScalar unit = rand.nextUScalar1();
    if (unit <= 0.3) {
//        SkDebugf("save\n");
        canvas->save();
    } else if (unit <= 0.6) {
//        SkDebugf("restore\n");
        canvas->restore();
    } else if (unit <= 0.9) {
//        SkDebugf("clip\n");
        canvas->clipRect(rect);
    } else {
//        SkDebugf("draw\n");
        canvas->drawPaint(paint);
    }
}