Ejemplo n.º 1
0
SkPath makePath() {
    SkPath path;
    for (uint32_t cIndex = 0; cIndex < fPathContourCount; ++cIndex) {
        uint32_t segments = makeSegmentCount();
        for (uint32_t sIndex = 0; sIndex < segments; ++sIndex) {
            RandomAddPath addPathType = makeAddPathType();
            ++fAddCount;
            if (fPrintName) {
                SkDebugf("%.*s%s\n", fPathDepth * 3, fTab,
                        gRandomAddPathNames[addPathType]);
            }
            switch (addPathType) {
                case kAddArc: {
                    SkRect oval = makeRect();
                    SkScalar startAngle = makeAngle();
                    SkScalar sweepAngle = makeAngle();
                    path.addArc(oval, startAngle, sweepAngle);
                    validate(path);
                    } break;
                case kAddRoundRect1: {
                    SkRect rect = makeRect();
                    SkScalar rx = makeScalar(), ry = makeScalar();
                    SkPath::Direction dir = makeDirection();
                    path.addRoundRect(rect, rx, ry, dir);
                    validate(path);
                    } break;
                case kAddRoundRect2: {
                    SkRect rect = makeRect();
                    SkScalar radii[8];
                    makeScalarArray(SK_ARRAY_COUNT(radii), radii);
                    SkPath::Direction dir = makeDirection();
                    path.addRoundRect(rect, radii, dir);
                    validate(path);
                    } break;
                case kAddRRect: {
                    SkRRect rrect = makeRRect();
                    SkPath::Direction dir = makeDirection();
                    path.addRRect(rrect, dir);
                    validate(path);
                    } break;
                case kAddPoly: {
                    SkTDArray<SkPoint> points;
                    makePointArray(&points);
                    bool close = makeBool();
                    path.addPoly(&points[0], points.count(), close);
                    validate(path);
                    } break;
                case kAddPath1:
                    if (fPathDepth < fPathDepthLimit) {
                        ++fPathDepth;
                        SkPath src = makePath();
                        validate(src);
                        SkScalar dx = makeScalar();
                        SkScalar dy = makeScalar();
                        SkPath::AddPathMode mode = makeAddPathMode();
                        path.addPath(src, dx, dy, mode);
                        --fPathDepth;
                        validate(path);
                    }
                    break;
                case kAddPath2:
                    if (fPathDepth < fPathDepthLimit) {
                        ++fPathDepth;
                        SkPath src = makePath();
                        validate(src);
                        SkPath::AddPathMode mode = makeAddPathMode();
                        path.addPath(src, mode);
                        --fPathDepth;
                        validate(path);
                    }
                    break;
                case kAddPath3:
                    if (fPathDepth < fPathDepthLimit) {
                        ++fPathDepth;
                        SkPath src = makePath();
                        validate(src);
                        SkMatrix matrix = makeMatrix();
                        SkPath::AddPathMode mode = makeAddPathMode();
                        path.addPath(src, matrix, mode);
                        --fPathDepth;
                        validate(path);
                    }
                    break;
                case kReverseAddPath:
                    if (fPathDepth < fPathDepthLimit) {
                        ++fPathDepth;
                        SkPath src = makePath();
                        validate(src);
                        path.reverseAddPath(src);
                        --fPathDepth;
                        validate(path);
                    }
                    break;
                case kMoveToPath: {
                    SkScalar x = makeScalar();
                    SkScalar y = makeScalar();
                    path.moveTo(x, y);
                    validate(path);
                    } break;
                case kRMoveToPath: {
                    SkScalar x = makeScalar();
                    SkScalar y = makeScalar();
                    path.rMoveTo(x, y);
                    validate(path);
                    } break;
                case kLineToPath: {
                    SkScalar x = makeScalar();
                    SkScalar y = makeScalar();
                    path.lineTo(x, y);
                    validate(path);
                    } break;
                case kRLineToPath: {
                    SkScalar x = makeScalar();
                    SkScalar y = makeScalar();
                    path.rLineTo(x, y);
                    validate(path);
                    } break;
                case kQuadToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    path.quadTo(pt[0], pt[1]);
                    validate(path);
                    } break;
                case kRQuadToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    path.rQuadTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY);
                    validate(path);
                    } break;
                case kConicToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    SkScalar weight = makeScalar();
                    path.conicTo(pt[0], pt[1], weight);
                    validate(path);
                    } break;
                case kRConicToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    SkScalar weight = makeScalar();
                    path.rConicTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY, weight);
                    validate(path);
                    } break;
                case kCubicToPath: {
                    SkPoint pt[3];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    path.cubicTo(pt[0], pt[1], pt[2]);
                    validate(path);
                    } break;
                case kRCubicToPath: {
                    SkPoint pt[3];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    path.rCubicTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY, pt[2].fX, pt[2].fY);
                    validate(path);
                    } break;
                case kArcToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    SkScalar radius = makeScalar();
                    path.arcTo(pt[0], pt[1], radius);
                    validate(path);
                    } break;
                case kArcTo2Path: {
                    SkRect oval = makeRect();
                    SkScalar startAngle = makeAngle();
                    SkScalar sweepAngle = makeAngle();
                    bool forceMoveTo = makeBool();
                    path.arcTo(oval, startAngle, sweepAngle, forceMoveTo);
                    validate(path);
                    } break;
                case kClosePath:
                    path.close();
                    validate(path);
                    break;
            }
        }
    }
    return path;
}
Ejemplo n.º 2
0
    void onOnceBeforeDraw() override {
        {
            const SkScalar w = SkScalarSqrt(2)/2;
            SkPath* conicCirlce = &fPaths.push_back();
            conicCirlce->moveTo(0, 0);
            conicCirlce->conicTo(0, 50, 50, 50, w);
            conicCirlce->rConicTo(50, 0, 50, -50, w);
            conicCirlce->rConicTo(0, -50, -50, -50, w);
            conicCirlce->rConicTo(-50, 0, -50, 50, w);

        }
        {
            SkPath* hyperbola = &fPaths.push_back();
            hyperbola->moveTo(0, 0);
            hyperbola->conicTo(0, 100, 100, 100, 2);
        }
        {
            SkPath* thinHyperbola = &fPaths.push_back();
            thinHyperbola->moveTo(0, 0);
            thinHyperbola->conicTo(100, 100, 5, 0, 2);
        }
        {
            SkPath* veryThinHyperbola = &fPaths.push_back();
            veryThinHyperbola->moveTo(0, 0);
            veryThinHyperbola->conicTo(100, 100, 1, 0, 2);
        }
        {
            SkPath* closedHyperbola = &fPaths.push_back();
            closedHyperbola->moveTo(0, 0);
            closedHyperbola->conicTo(100, 100, 0, 0, 2);
        }
        {
            // using 1 as weight defaults to using quadTo
            SkPath* nearParabola = &fPaths.push_back();
            nearParabola->moveTo(0, 0);
            nearParabola->conicTo(0, 100, 100, 100, 0.999f);
        }
        {
            SkPath* thinEllipse = &fPaths.push_back();
            thinEllipse->moveTo(0, 0);
            thinEllipse->conicTo(100, 100, 5, 0, SK_ScalarHalf);
        }
        {
            SkPath* veryThinEllipse = &fPaths.push_back();
            veryThinEllipse->moveTo(0, 0);
            veryThinEllipse->conicTo(100, 100, 1, 0, SK_ScalarHalf);
        }
        {
            SkPath* closedEllipse = &fPaths.push_back();
            closedEllipse->moveTo(0,  0);
            closedEllipse->conicTo(100, 100, 0, 0, SK_ScalarHalf);
        }
        {
            const SkScalar w = SkScalarSqrt(2)/2;
            fGiantCircle.moveTo(2.1e+11f, -1.05e+11f);
            fGiantCircle.conicTo(2.1e+11f, 0, 1.05e+11f, 0, w);
            fGiantCircle.conicTo(0, 0, 0, -1.05e+11f, w);
            fGiantCircle.conicTo(0, -2.1e+11f, 1.05e+11f, -2.1e+11f, w);
            fGiantCircle.conicTo(2.1e+11f, -2.1e+11f, 2.1e+11f, -1.05e+11f, w);

        }
    }