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C++ DropShadowFilterOperation类代码示例

本文整理汇总了C++中DropShadowFilterOperation类的典型用法代码示例。如果您正苦于以下问题：C++ DropShadowFilterOperation类的具体用法？C++ DropShadowFilterOperation怎么用？C++ DropShadowFilterOperation使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。


在下文中一共展示了DropShadowFilterOperation类的6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: switch

FilterOutsets FilterOperations::outsets() const
{
    FilterOutsets totalOutsets;
    for (size_t i = 0; i < m_operations.size(); ++i) {
        FilterOperation* filterOperation = m_operations.at(i).get();
        switch (filterOperation->type()) {
        case FilterOperation::BLUR: {
            BlurFilterOperation* blurOperation = toBlurFilterOperation(filterOperation);
            float stdDeviation = floatValueForLength(blurOperation->stdDeviation(), 0);
            IntSize outsetSize = outsetSizeForBlur(stdDeviation);
            FilterOutsets outsets(outsetSize.height(), outsetSize.width(), outsetSize.height(), outsetSize.width());
            totalOutsets += outsets;
            break;
        }
        case FilterOperation::DROP_SHADOW: {
            DropShadowFilterOperation* dropShadowOperation = toDropShadowFilterOperation(filterOperation);
            IntSize outsetSize = outsetSizeForBlur(dropShadowOperation->stdDeviation());
            FilterOutsets outsets(
                std::max(0, outsetSize.height() - dropShadowOperation->y()),
                std::max(0, outsetSize.width() + dropShadowOperation->x()),
                std::max(0, outsetSize.height() + dropShadowOperation->y()),
                std::max(0, outsetSize.width() - dropShadowOperation->x())
            );
            totalOutsets += outsets;
            break;
        }
        default:
            break;
        }
    }
    return totalOutsets;
}
开发者ID:Rajesh-Veeranki，项目名称:engine，代码行数:32，代码来源:FilterOperations.cpp

示例2: switch

FilterOutsets FilterOperations::outsets() const
{
    FilterOutsets totalOutsets;
    for (size_t i = 0; i < m_operations.size(); ++i) {
        FilterOperation* filterOperation = m_operations.at(i).get();
        switch (filterOperation->type()) {
        case FilterOperation::BLUR: {
            BlurFilterOperation* blurOperation = toBlurFilterOperation(filterOperation);
            float stdDeviation = floatValueForLength(blurOperation->stdDeviation(), 0);
            IntSize outsetSize = outsetSizeForBlur(stdDeviation);
            FilterOutsets outsets(outsetSize.height(), outsetSize.width(), outsetSize.height(), outsetSize.width());
            totalOutsets += outsets;
            break;
        }
        case FilterOperation::DROP_SHADOW: {
            DropShadowFilterOperation* dropShadowOperation = toDropShadowFilterOperation(filterOperation);
            IntSize outsetSize = outsetSizeForBlur(dropShadowOperation->stdDeviation());
            FilterOutsets outsets(
                std::max(0, outsetSize.height() - dropShadowOperation->y()),
                std::max(0, outsetSize.width() + dropShadowOperation->x()),
                std::max(0, outsetSize.height() + dropShadowOperation->y()),
                std::max(0, outsetSize.width() - dropShadowOperation->x())
            );
            totalOutsets += outsets;
            break;
        }
        case FilterOperation::REFERENCE: {
            ReferenceFilterOperation* referenceOperation = toReferenceFilterOperation(filterOperation);
            if (referenceOperation->filter() && referenceOperation->filter()->lastEffect()) {
                FloatRect outsetRect(0, 0, 1, 1);
                outsetRect = referenceOperation->filter()->lastEffect()->mapRectRecursive(outsetRect);
                FilterOutsets outsets(
                    std::max(0.0f, -outsetRect.y()),
                    std::max(0.0f, outsetRect.x() + outsetRect.width() - 1),
                    std::max(0.0f, outsetRect.y() + outsetRect.height() - 1),
                    std::max(0.0f, -outsetRect.x())
                );
                totalOutsets += outsets;
            }
            break;
        }
        default:
            break;
        }
    }
    return totalOutsets;
}
开发者ID:dstockwell，项目名称:blink，代码行数:47，代码来源:FilterOperations.cpp

示例3: UNUSED_PARAM


//.........这里部分代码省略.........
            transferFunction.tableValues = transferParameters;

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

            ComponentTransferFunction nullFunction;
            effect = FEComponentTransfer::create(this, nullFunction, nullFunction, nullFunction, transferFunction);
            break;
        }
        case FilterOperation::BRIGHTNESS: {
            BasicComponentTransferFilterOperation* componentTransferOperation = static_cast<BasicComponentTransferFilterOperation*>(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
            transferFunction.slope = 1;
            transferFunction.intercept = narrowPrecisionToFloat(componentTransferOperation->amount());

            ComponentTransferFunction nullFunction;
            effect = FEComponentTransfer::create(this, transferFunction, transferFunction, transferFunction, nullFunction);
            break;
        }
        case FilterOperation::CONTRAST: {
            BasicComponentTransferFilterOperation* componentTransferOperation = static_cast<BasicComponentTransferFilterOperation*>(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
            float amount = narrowPrecisionToFloat(componentTransferOperation->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: {
            BlurFilterOperation* blurOperation = static_cast<BlurFilterOperation*>(filterOperation);
            float stdDeviation = blurOperation->stdDeviation().calcFloatValue(0);
            effect = FEGaussianBlur::create(this, stdDeviation, stdDeviation);
            break;
        }
        case FilterOperation::DROP_SHADOW: {
            DropShadowFilterOperation* dropShadowOperation = static_cast<DropShadowFilterOperation*>(filterOperation);
            effect = FEDropShadow::create(this, dropShadowOperation->stdDeviation(), dropShadowOperation->stdDeviation(),
                                                dropShadowOperation->x(), dropShadowOperation->y(), dropShadowOperation->color(), 1);
            break;
        }
#if ENABLE(CSS_SHADERS)
        case FilterOperation::CUSTOM: {
#if ENABLE(WEBGL)
            if (!isCSSCustomFilterEnabled(document))
                continue;
            
            CustomFilterOperation* customFilterOperation = static_cast<CustomFilterOperation*>(filterOperation);
            RefPtr<CustomFilterProgram> program = customFilterOperation->program();
            cachedCustomFilterPrograms.append(program);
            program->addClient(this);
            if (program->isLoaded()) {
                effect = FECustomFilter::create(this, document, program, customFilterOperation->parameters(),
                                                customFilterOperation->meshRows(), customFilterOperation->meshColumns(),
                                                customFilterOperation->meshBoxType(), customFilterOperation->meshType());
            }
#endif
            break;
        }
#endif
        default:
            break;
        }

        if (effect) {
            // Unlike SVG, filters applied here should not clip to their primitive subregions.
            effect->setClipsToBounds(false);
            
            if (previousEffect)
                effect->inputEffects().append(previousEffect);
            m_effects.append(effect);
            previousEffect = effect.release();
        }
    }

    // If we didn't make a real filter, create a null-op (FEMerge with one input).
    if (!previousEffect)
        m_effects.append(FEMerge::create(this));

    m_effects.first()->inputEffects().append(m_sourceGraphic);
    setMaxEffectRects(m_sourceDrawingRegion);
    
#if ENABLE(CSS_SHADERS) && ENABLE(WEBGL)
    removeCustomFilterClients();
    m_cachedCustomFilterPrograms.swap(cachedCustomFilterPrograms);
#endif
}
开发者ID:sohocoke，项目名称:webkit，代码行数:101，代码来源:FilterEffectRenderer.cpp

示例4: switch


//.........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5: UNUSED_PARAM


//.........这里部分代码省略.........
        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;
            effect = FEComponentTransfer::create(this, transferFunction, transferFunction, transferFunction, nullFunction);
            break;
        }
        case FilterOperation::OPACITY: {
            BasicComponentTransferFilterOperation* componentTransferOperation = static_cast<BasicComponentTransferFilterOperation*>(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
            Vector<float> transferParameters;
            transferParameters.append(0);
            transferParameters.append(narrowPrecisionToFloat(componentTransferOperation->amount()));
            transferFunction.tableValues = transferParameters;

            ComponentTransferFunction nullFunction;
            effect = FEComponentTransfer::create(this, nullFunction, nullFunction, nullFunction, transferFunction);
            break;
        }
        case FilterOperation::BRIGHTNESS: {
            BasicComponentTransferFilterOperation* componentTransferOperation = static_cast<BasicComponentTransferFilterOperation*>(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
            transferFunction.slope = 1;
            transferFunction.intercept = narrowPrecisionToFloat(componentTransferOperation->amount());

            ComponentTransferFunction nullFunction;
            effect = FEComponentTransfer::create(this, transferFunction, transferFunction, transferFunction, nullFunction);
            break;
        }
        case FilterOperation::CONTRAST: {
            BasicComponentTransferFilterOperation* componentTransferOperation = static_cast<BasicComponentTransferFilterOperation*>(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
            float amount = narrowPrecisionToFloat(componentTransferOperation->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: {
            BlurFilterOperation* blurOperation = static_cast<BlurFilterOperation*>(filterOperation);
            float stdDeviation = floatValueForLength(blurOperation->stdDeviation(), 0);
            effect = FEGaussianBlur::create(this, stdDeviation, stdDeviation);
            break;
        }
        case FilterOperation::DROP_SHADOW: {
            DropShadowFilterOperation* dropShadowOperation = static_cast<DropShadowFilterOperation*>(filterOperation);
            effect = FEDropShadow::create(this, dropShadowOperation->stdDeviation(), dropShadowOperation->stdDeviation(),
                                                dropShadowOperation->x(), dropShadowOperation->y(), dropShadowOperation->color(), 1);
            break;
        }
#if ENABLE(CSS_SHADERS) && USE(3D_GRAPHICS)
        case FilterOperation::CUSTOM:
            // CUSTOM operations are always converted to VALIDATED_CUSTOM before getting here.
            // The conversion happens in RenderLayer::computeFilterOperations.
            ASSERT_NOT_REACHED();
            break;
        case FilterOperation::VALIDATED_CUSTOM: {
            ValidatedCustomFilterOperation* customFilterOperation = static_cast<ValidatedCustomFilterOperation*>(filterOperation);
            effect = createCustomFilterEffect(this, document, customFilterOperation);
            if (effect)
                m_hasCustomShaderFilter = true;
            break;
        }
#endif
        default:
            break;
        }

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

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

    setMaxEffectRects(m_sourceDrawingRegion);
    
    return true;
}
开发者ID:jiezh，项目名称:h5vcc，代码行数:101，代码来源:FilterEffectRenderer.cpp

示例6: deviceScaleFactor


//.........这里部分代码省略.........
            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;
            effect = FEComponentTransfer::create(this, transferFunction, transferFunction, transferFunction, nullFunction);
            break;
        }
        case FilterOperation::OPACITY: {
            BasicComponentTransferFilterOperation* componentTransferOperation = static_cast<BasicComponentTransferFilterOperation*>(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
            Vector<float> transferParameters;
            transferParameters.append(0);
            transferParameters.append(narrowPrecisionToFloat(componentTransferOperation->amount()));
            transferFunction.tableValues = transferParameters;

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

            ComponentTransferFunction nullFunction;
            effect = FEComponentTransfer::create(this, transferFunction, transferFunction, transferFunction, nullFunction);
            break;
        }
        case FilterOperation::CONTRAST: {
            BasicComponentTransferFilterOperation* componentTransferOperation = static_cast<BasicComponentTransferFilterOperation*>(filterOperation);
            ComponentTransferFunction transferFunction;
            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
            float amount = narrowPrecisionToFloat(componentTransferOperation->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: {
            BlurFilterOperation* blurOperation = static_cast<BlurFilterOperation*>(filterOperation);
            float stdDeviation = floatValueForLength(blurOperation->stdDeviation(), 0) * invZoom;
            effect = FEGaussianBlur::create(this, stdDeviation, stdDeviation);
            break;
        }
        case FilterOperation::DROP_SHADOW: {
            DropShadowFilterOperation* dropShadowOperation = static_cast<DropShadowFilterOperation*>(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;
        }
        case FilterOperation::CUSTOM:
            // CUSTOM operations are always converted to VALIDATED_CUSTOM before getting here.
            // The conversion happens in RenderLayer::computeFilterOperations.
            ASSERT_NOT_REACHED();
            break;
        case FilterOperation::VALIDATED_CUSTOM: {
            ValidatedCustomFilterOperation* customFilterOperation = static_cast<ValidatedCustomFilterOperation*>(filterOperation);
            Document* document = renderer ? &renderer->document() : 0;
            effect = createCustomFilterEffect(this, document, customFilterOperation);
            if (effect)
                m_hasCustomShaderFilter = true;
            break;
        }
        default:
            break;
        }

        if (effect) {
            if (filterOperation->getOperationType() != 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 filters like FECustomFilter
    // 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:huningxin，项目名称:blink-crosswalk，代码行数:101，代码来源:FilterEffectRenderer.cpp


注：本文中的DropShadowFilterOperation类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。