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C++ DropShadowFilterOperation::color方法代码示例

本文整理汇总了C++中DropShadowFilterOperation::color方法的典型用法代码示例。如果您正苦于以下问题：C++ DropShadowFilterOperation::color方法的具体用法？C++ DropShadowFilterOperation::color怎么用？C++ DropShadowFilterOperation::color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类DropShadowFilterOperation的用法示例。


在下文中一共展示了DropShadowFilterOperation::color方法的4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: build

void FilterEffectRenderer::build(Document* document, const FilterOperations& operations)
{
#if !ENABLE(CSS_SHADERS) || !ENABLE(WEBGL)
    UNUSED_PARAM(document);
#else
    CustomFilterProgramList cachedCustomFilterPrograms;
#endif

    m_effects.clear();

    RefPtr<FilterEffect> previousEffect;
    for (size_t i = 0; i < operations.operations().size(); ++i) {
        RefPtr<FilterEffect> effect;
        FilterOperation* filterOperation = operations.operations().at(i).get();
        switch (filterOperation->getOperationType()) {
        case FilterOperation::REFERENCE: {
            // FIXME: Not yet implemented.
            // https://bugs.webkit.org/show_bug.cgi?id=72443
            break;
        }
        case FilterOperation::GRAYSCALE: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            double oneMinusAmount = clampTo(1 - colorMatrixOperation->amount(), 0.0, 1.0);

            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#grayscaleEquivalent
            // for information on parameters.

            inputParameters.append(narrowPrecisionToFloat(0.2126 + 0.7874 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.7152 + 0.2848 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.0722 + 0.9278 * oneMinusAmount));
            endMatrixRow(inputParameters);

            lastMatrixRow(inputParameters);

            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
            break;
        }
        case FilterOperation::SEPIA: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            double oneMinusAmount = clampTo(1 - colorMatrixOperation->amount(), 0.0, 1.0);

            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#sepiaEquivalent
            // for information on parameters.

            inputParameters.append(narrowPrecisionToFloat(0.393 + 0.607 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.769 - 0.769 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.189 - 0.189 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.349 - 0.349 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.686 + 0.314 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.168 - 0.168 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.272 - 0.272 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.534 - 0.534 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.131 + 0.869 * oneMinusAmount));
            endMatrixRow(inputParameters);

            lastMatrixRow(inputParameters);

            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
            break;
        }
        case FilterOperation::SATURATE: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation->amount()));
            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_SATURATE, inputParameters);
            break;
        }
        case FilterOperation::HUE_ROTATE: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation->amount()));
            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_HUEROTATE, inputParameters);
            break;
        }
        case FilterOperation::INVERT: {
            BasicComponentTransferFilterOperation* componentTransferOperation = static_cast<BasicComponentTransferFilterOperation*>(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
            Vector<float> transferParameters;
            transferParameters.append(narrowPrecisionToFloat(componentTransferOperation->amount()));
            transferParameters.append(narrowPrecisionToFloat(1 - componentTransferOperation->amount()));
            transferFunction.tableValues = transferParameters;

            ComponentTransferFunction nullFunction;
//.........这里部分代码省略.........
开发者ID:sohocoke，项目名称:webkit，代码行数:101，代码来源:FilterEffectRenderer.cpp

示例2: build


//.........这里部分代码省略.........

            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
            break;
        }
        case FilterOperation::SATURATE: {
            Vector<float> inputParameters;
            inputParameters.append(narrowPrecisionToFloat(toBasicColorMatrixFilterOperation(filterOperation)->amount()));
            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_SATURATE, inputParameters);
            break;
        }
        case FilterOperation::HUE_ROTATE: {
            Vector<float> inputParameters;
            inputParameters.append(narrowPrecisionToFloat(toBasicColorMatrixFilterOperation(filterOperation)->amount()));
            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_HUEROTATE, inputParameters);
            break;
        }
        case FilterOperation::INVERT: {
            BasicComponentTransferFilterOperation* componentTransferOperation = toBasicComponentTransferFilterOperation(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
            Vector<float> transferParameters;
            transferParameters.append(narrowPrecisionToFloat(componentTransferOperation->amount()));
            transferParameters.append(narrowPrecisionToFloat(1 - componentTransferOperation->amount()));
            transferFunction.tableValues = transferParameters;

            ComponentTransferFunction nullFunction;
            effect = FEComponentTransfer::create(this, transferFunction, transferFunction, transferFunction, nullFunction);
            break;
        }
        case FilterOperation::OPACITY: {
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
            Vector<float> transferParameters;
            transferParameters.append(0);
            transferParameters.append(narrowPrecisionToFloat(toBasicComponentTransferFilterOperation(filterOperation)->amount()));
            transferFunction.tableValues = transferParameters;

            ComponentTransferFunction nullFunction;
            effect = FEComponentTransfer::create(this, nullFunction, nullFunction, nullFunction, transferFunction);
            break;
        }
        case FilterOperation::BRIGHTNESS: {
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
            transferFunction.slope = narrowPrecisionToFloat(toBasicComponentTransferFilterOperation(filterOperation)->amount());
            transferFunction.intercept = 0;

            ComponentTransferFunction nullFunction;
            effect = FEComponentTransfer::create(this, transferFunction, transferFunction, transferFunction, nullFunction);
            break;
        }
        case FilterOperation::CONTRAST: {
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
            float amount = narrowPrecisionToFloat(toBasicComponentTransferFilterOperation(filterOperation)->amount());
            transferFunction.slope = amount;
            transferFunction.intercept = -0.5 * amount + 0.5;

            ComponentTransferFunction nullFunction;
            effect = FEComponentTransfer::create(this, transferFunction, transferFunction, transferFunction, nullFunction);
            break;
        }
        case FilterOperation::BLUR: {
            float stdDeviation = floatValueForLength(toBlurFilterOperation(filterOperation)->stdDeviation(), 0) * invZoom;
            effect = FEGaussianBlur::create(this, stdDeviation, stdDeviation);
            break;
        }
        case FilterOperation::DROP_SHADOW: {
            DropShadowFilterOperation* dropShadowOperation = toDropShadowFilterOperation(filterOperation);
            float stdDeviation = dropShadowOperation->stdDeviation() * invZoom;
            float x = dropShadowOperation->x() * invZoom;
            float y = dropShadowOperation->y() * invZoom;
            effect = FEDropShadow::create(this, stdDeviation, stdDeviation, x, y, dropShadowOperation->color(), 1);
            break;
        }
        default:
            break;
        }

        if (effect) {
            if (filterOperation->type() != FilterOperation::REFERENCE) {
                // Unlike SVG, filters applied here should not clip to their primitive subregions.
                effect->setClipsToBounds(false);
                effect->setOperatingColorSpace(ColorSpaceDeviceRGB);
                effect->inputEffects().append(previousEffect);
            }
            previousEffect = effect.release();
        }
    }

    // We need to keep the old effects alive until this point, so that SVG reference filters
    // can share cached resources across frames.
    m_lastEffect = previousEffect;

    // If we didn't make any effects, tell our caller we are not valid
    if (!m_lastEffect.get())
        return false;

    return true;
}
开发者ID:darktears，项目名称:blink-crosswalk，代码行数:101，代码来源:FilterEffectRenderer.cpp

示例3: build

bool FilterEffectRenderer::build(RenderObject* renderer, const FilterOperations& operations)
{
    m_hasCustomShaderFilter = false;
    m_hasFilterThatMovesPixels = operations.hasFilterThatMovesPixels();

    // Inverse zoom the pre-zoomed CSS shorthand filters, so that they are in the same zoom as the unzoomed reference filters.
    const RenderStyle* style = renderer->style();
    // FIXME: The effects now contain high dpi information, but the software path doesn't (yet) scale its backing.
    //        When the proper dpi dependant backing size is allocated, we should remove deviceScaleFactor(...) here.
    float invZoom = 1.0f / ((style ? style->effectiveZoom() : 1.0f) * deviceScaleFactor(renderer->frame()));

    RefPtr<FilterEffect> previousEffect = m_sourceGraphic;
    for (size_t i = 0; i < operations.operations().size(); ++i) {
        RefPtr<FilterEffect> effect;
        FilterOperation* filterOperation = operations.operations().at(i).get();
        switch (filterOperation->getOperationType()) {
        case FilterOperation::REFERENCE: {
            ReferenceFilterOperation* referenceOperation = static_cast<ReferenceFilterOperation*>(filterOperation);
            effect = ReferenceFilterBuilder::build(this, renderer, previousEffect.get(), referenceOperation);
            break;
        }
        case FilterOperation::GRAYSCALE: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            double oneMinusAmount = clampTo(1 - colorMatrixOperation->amount(), 0.0, 1.0);

            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#grayscaleEquivalent
            // for information on parameters.

            inputParameters.append(narrowPrecisionToFloat(0.2126 + 0.7874 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.7152 + 0.2848 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.0722 + 0.9278 * oneMinusAmount));
            endMatrixRow(inputParameters);

            lastMatrixRow(inputParameters);

            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
            break;
        }
        case FilterOperation::SEPIA: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            double oneMinusAmount = clampTo(1 - colorMatrixOperation->amount(), 0.0, 1.0);

            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#sepiaEquivalent
            // for information on parameters.

            inputParameters.append(narrowPrecisionToFloat(0.393 + 0.607 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.769 - 0.769 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.189 - 0.189 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.349 - 0.349 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.686 + 0.314 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.168 - 0.168 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.272 - 0.272 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.534 - 0.534 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.131 + 0.869 * oneMinusAmount));
            endMatrixRow(inputParameters);

            lastMatrixRow(inputParameters);

            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
            break;
        }
        case FilterOperation::SATURATE: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation->amount()));
            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_SATURATE, inputParameters);
            break;
        }
        case FilterOperation::HUE_ROTATE: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation->amount()));
            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_HUEROTATE, inputParameters);
            break;
        }
        case FilterOperation::INVERT: {
            BasicComponentTransferFilterOperation* componentTransferOperation = static_cast<BasicComponentTransferFilterOperation*>(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
            Vector<float> transferParameters;
            transferParameters.append(narrowPrecisionToFloat(componentTransferOperation->amount()));
            transferParameters.append(narrowPrecisionToFloat(1 - componentTransferOperation->amount()));
            transferFunction.tableValues = transferParameters;

//.........这里部分代码省略.........
开发者ID:huningxin，项目名称:blink-crosswalk，代码行数:101，代码来源:FilterEffectRenderer.cpp

示例4: build

bool FilterEffectRenderer::build(Document* document, const FilterOperations& operations)
{
#if !ENABLE(CSS_SHADERS) || !USE(3D_GRAPHICS)
    UNUSED_PARAM(document);
#endif

#if ENABLE(CSS_SHADERS)
    m_hasCustomShaderFilter = false;
#endif
    m_hasFilterThatMovesPixels = operations.hasFilterThatMovesPixels();
    if (m_hasFilterThatMovesPixels)
        operations.getOutsets(m_topOutset, m_rightOutset, m_bottomOutset, m_leftOutset);
    
    // Keep the old effects on the stack until we've created the new effects.
    // New FECustomFilters can reuse cached resources from old FECustomFilters.
    FilterEffectList oldEffects;
    m_effects.swap(oldEffects);

    RefPtr<FilterEffect> previousEffect = m_sourceGraphic;
    for (size_t i = 0; i < operations.operations().size(); ++i) {
        RefPtr<FilterEffect> effect;
        FilterOperation* filterOperation = operations.operations().at(i).get();
        switch (filterOperation->getOperationType()) {
        case FilterOperation::REFERENCE: {
            ReferenceFilterOperation* referenceOperation = static_cast<ReferenceFilterOperation*>(filterOperation);
            effect = buildReferenceFilter(document, previousEffect, referenceOperation);
            referenceOperation->setFilterEffect(effect);
            break;
        }
        case FilterOperation::GRAYSCALE: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            double oneMinusAmount = clampTo(1 - colorMatrixOperation->amount(), 0.0, 1.0);

            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#grayscaleEquivalent
            // for information on parameters.

            inputParameters.append(narrowPrecisionToFloat(0.2126 + 0.7874 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.7152 + 0.2848 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.0722 + 0.9278 * oneMinusAmount));
            endMatrixRow(inputParameters);

            lastMatrixRow(inputParameters);

            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
            break;
        }
        case FilterOperation::SEPIA: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            double oneMinusAmount = clampTo(1 - colorMatrixOperation->amount(), 0.0, 1.0);

            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#sepiaEquivalent
            // for information on parameters.

            inputParameters.append(narrowPrecisionToFloat(0.393 + 0.607 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.769 - 0.769 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.189 - 0.189 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.349 - 0.349 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.686 + 0.314 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.168 - 0.168 * oneMinusAmount));
            endMatrixRow(inputParameters);

            inputParameters.append(narrowPrecisionToFloat(0.272 - 0.272 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.534 - 0.534 * oneMinusAmount));
            inputParameters.append(narrowPrecisionToFloat(0.131 + 0.869 * oneMinusAmount));
            endMatrixRow(inputParameters);

            lastMatrixRow(inputParameters);

            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
            break;
        }
        case FilterOperation::SATURATE: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation->amount()));
            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_SATURATE, inputParameters);
            break;
        }
        case FilterOperation::HUE_ROTATE: {
            BasicColorMatrixFilterOperation* colorMatrixOperation = static_cast<BasicColorMatrixFilterOperation*>(filterOperation);
            Vector<float> inputParameters;
            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation->amount()));
            effect = FEColorMatrix::create(this, FECOLORMATRIX_TYPE_HUEROTATE, inputParameters);
            break;
        }
        case FilterOperation::INVERT: {
//.........这里部分代码省略.........
开发者ID:jiezh，项目名称:h5vcc，代码行数:101，代码来源:FilterEffectRenderer.cpp


注：本文中的DropShadowFilterOperation::color方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。