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C++ SkOpContour::count方法代码示例

本文整理汇总了C++中SkOpContour::count方法的典型用法代码示例。如果您正苦于以下问题:C++ SkOpContour::count方法的具体用法?C++ SkOpContour::count怎么用?C++ SkOpContour::count使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在SkOpContour的用法示例。


在下文中一共展示了SkOpContour::count方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: SortContourList

bool SortContourList(SkOpContourHead** contourList, bool evenOdd, bool oppEvenOdd) {
    SkTDArray<SkOpContour* > list;
    SkOpContour* contour = *contourList;
    do {
        if (contour->count()) {
            contour->setOppXor(contour->operand() ? evenOdd : oppEvenOdd);
            *list.append() = contour;
        }
    } while ((contour = contour->next()));
    int count = list.count();
    if (!count) {
        return false;
    }
    if (count > 1) {
        SkTQSort<SkOpContour>(list.begin(), list.end() - 1);
    }
    contour = list[0];
    SkOpContourHead* contourHead = static_cast<SkOpContourHead*>(contour);
    contour->globalState()->setContourHead(contourHead);
    *contourList = contourHead;
    for (int index = 1; index < count; ++index) {
        SkOpContour* next = list[index];
        contour->setNext(next);
        contour = next;
    }
    contour->setNext(nullptr);
    return true;
}
开发者ID:Just-D,项目名称:skia,代码行数:28,代码来源:SkPathOpsCommon.cpp

示例2: finish

bool SkOpEdgeBuilder::finish() {
    fOperand = false;
    if (fUnparseable || !walk()) {
        return false;
    }
    complete();
    SkOpContour* contour = fContourBuilder.contour();
    if (contour && !contour->count()) {
        fContoursHead->remove(contour);
    }
    return true;
}
开发者ID:molikto,项目名称:Skia,代码行数:12,代码来源:SkOpEdgeBuilder.cpp

示例3: walk

bool SkOpEdgeBuilder::walk() {
    uint8_t* verbPtr = fPathVerbs.begin();
    uint8_t* endOfFirstHalf = &verbPtr[fSecondHalf];
    SkPoint* pointsPtr = fPathPts.begin() - 1;
    SkScalar* weightPtr = fWeights.begin();
    SkPath::Verb verb;
    SkOpContour* contour = fContourBuilder.contour();
    while ((verb = (SkPath::Verb) *verbPtr) != SkPath::kDone_Verb) {
        if (verbPtr == endOfFirstHalf) {
            fOperand = true;
        }
        verbPtr++;
        switch (verb) {
            case SkPath::kMove_Verb:
                if (contour && contour->count()) {
                    if (fAllowOpenContours) {
                        complete();
                    } else if (!close()) {
                        return false;
                    }
                }
                if (!contour) {
                    fContourBuilder.setContour(contour = fContoursHead->appendContour());
                }
                contour->init(fGlobalState, fOperand,
                    fXorMask[fOperand] == kEvenOdd_PathOpsMask);
                pointsPtr += 1;
                continue;
            case SkPath::kLine_Verb:
                fContourBuilder.addLine(pointsPtr);
                break;
            case SkPath::kQuad_Verb:
                {
                    SkVector v1 = pointsPtr[1] - pointsPtr[0];
                    SkVector v2 = pointsPtr[2] - pointsPtr[1];
                    if (v1.dot(v2) < 0) {
                        SkPoint pair[5];
                        if (SkChopQuadAtMaxCurvature(pointsPtr, pair) == 1) {
                            goto addOneQuad;
                        }
                        if (!SkScalarsAreFinite(&pair[0].fX, SK_ARRAY_COUNT(pair) * 2)) {
                            return false;
                        }
                        for (unsigned index = 0; index < SK_ARRAY_COUNT(pair); ++index) {
                            force_small_to_zero(&pair[index]);
                        }
                        SkPoint cStorage[2][2];
                        SkPath::Verb v1 = SkReduceOrder::Quad(&pair[0], cStorage[0]);
                        SkPath::Verb v2 = SkReduceOrder::Quad(&pair[2], cStorage[1]);
                        SkPoint* curve1 = v1 != SkPath::kLine_Verb ? &pair[0] : cStorage[0];
                        SkPoint* curve2 = v2 != SkPath::kLine_Verb ? &pair[2] : cStorage[1];
                        if (can_add_curve(v1, curve1) && can_add_curve(v2, curve2)) {
                            fContourBuilder.addCurve(v1, curve1);
                            fContourBuilder.addCurve(v2, curve2);
                            break;
                        }
                    }
                }
            addOneQuad:
                fContourBuilder.addQuad(pointsPtr);
                break;
            case SkPath::kConic_Verb: {
                SkVector v1 = pointsPtr[1] - pointsPtr[0];
                SkVector v2 = pointsPtr[2] - pointsPtr[1];
                SkScalar weight = *weightPtr++;
                if (v1.dot(v2) < 0) {
                    // FIXME: max curvature for conics hasn't been implemented; use placeholder
                    SkScalar maxCurvature = SkFindQuadMaxCurvature(pointsPtr);
                    if (maxCurvature > 0) {
                        SkConic conic(pointsPtr, weight);
                        SkConic pair[2];
                        if (!conic.chopAt(maxCurvature, pair)) {
                            // if result can't be computed, use original
                            fContourBuilder.addConic(pointsPtr, weight);
                            break;
                        }
                        SkPoint cStorage[2][3];
                        SkPath::Verb v1 = SkReduceOrder::Conic(pair[0], cStorage[0]);
                        SkPath::Verb v2 = SkReduceOrder::Conic(pair[1], cStorage[1]);
                        SkPoint* curve1 = v1 != SkPath::kLine_Verb ? pair[0].fPts : cStorage[0];
                        SkPoint* curve2 = v2 != SkPath::kLine_Verb ? pair[1].fPts : cStorage[1];
                        if (can_add_curve(v1, curve1) && can_add_curve(v2, curve2)) {
                            fContourBuilder.addCurve(v1, curve1, pair[0].fW);
                            fContourBuilder.addCurve(v2, curve2, pair[1].fW);
                            break;
                        }
                    }
                }
                fContourBuilder.addConic(pointsPtr, weight);
                } break;
            case SkPath::kCubic_Verb:
                {
                    // Split complex cubics (such as self-intersecting curves or
                    // ones with difficult curvature) in two before proceeding.
                    // This can be required for intersection to succeed.
                    SkScalar splitT[3];
                    int breaks = SkDCubic::ComplexBreak(pointsPtr, splitT);
                    if (!breaks) {
                        fContourBuilder.addCubic(pointsPtr);
                        break;
//.........这里部分代码省略.........
开发者ID:molikto,项目名称:Skia,代码行数:101,代码来源:SkOpEdgeBuilder.cpp


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