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C++ Filter::applyHorizontalScale方法代码示例

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


在下文中一共展示了Filter::applyHorizontalScale方法的13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: applySoftware

void FEDropShadow::applySoftware()
{
    FilterEffect* in = inputEffect(0);

    ImageBuffer* resultImage = createImageBufferResult();
    if (!resultImage)
        return;

    Filter* filter = this->filter();
    FloatSize blurRadius(filter->applyHorizontalScale(m_stdX), filter->applyVerticalScale(m_stdY));
    FloatSize offset(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));

    FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
    GraphicsContext* resultContext = resultImage->context();
    ASSERT(resultContext);

    Color color = adaptColorToOperatingColorSpace(m_shadowColor.combineWithAlpha(m_shadowOpacity));
    SkAutoTUnref<SkImageFilter> blurFilter(SkBlurImageFilter::Create(blurRadius.width(), blurRadius.height()));
    SkAutoTUnref<SkColorFilter> colorFilter(SkColorFilter::CreateModeFilter(color.rgb(), SkXfermode::kSrcIn_Mode));
    SkPaint paint;
    paint.setImageFilter(blurFilter.get());
    paint.setColorFilter(colorFilter.get());
    paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
    RefPtr<Image> image = in->asImageBuffer()->copyImage(DontCopyBackingStore);

    RefPtr<NativeImageSkia> nativeImage = image->nativeImageForCurrentFrame();

    if (!nativeImage)
        return;

    resultContext->drawBitmap(nativeImage->bitmap(), drawingRegion.x() + offset.width(), drawingRegion.y() + offset.height(), &paint);
    resultContext->drawBitmap(nativeImage->bitmap(), drawingRegion.x(), drawingRegion.y());
}
开发者ID:335969568，项目名称:Blink-1，代码行数:33，代码来源:FEDropShadow.cpp

示例2: apply

void FEDisplacementMap::apply()
{
    if (hasResult())
        return;
    FilterEffect* in = inputEffect(0);
    FilterEffect* in2 = inputEffect(1);
    in->apply();
    in2->apply();
    if (!in->hasResult() || !in2->hasResult())
        return;

    if (m_xChannelSelector == CHANNEL_UNKNOWN || m_yChannelSelector == CHANNEL_UNKNOWN)
        return;

    ByteArray* dstPixelArray = createPremultipliedImageResult();
    if (!dstPixelArray)
        return;

    IntRect effectADrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
    RefPtr<ByteArray> srcPixelArrayA = in->asPremultipliedImage(effectADrawingRect);

    IntRect effectBDrawingRect = requestedRegionOfInputImageData(in2->absolutePaintRect());
    RefPtr<ByteArray> srcPixelArrayB = in2->asUnmultipliedImage(effectBDrawingRect);

    ASSERT(srcPixelArrayA->length() == srcPixelArrayB->length());

    Filter* filter = this->filter();
    IntSize paintSize = absolutePaintRect().size();
    float scaleX = filter->applyHorizontalScale(m_scale / 255);
    float scaleY = filter->applyVerticalScale(m_scale / 255);
    float scaleAdjustmentX = filter->applyHorizontalScale(0.5f - 0.5f * m_scale);
    float scaleAdjustmentY = filter->applyVerticalScale(0.5f - 0.5f * m_scale);
    int stride = paintSize.width() * 4;
    for (int y = 0; y < paintSize.height(); ++y) {
        int line = y * stride;
        for (int x = 0; x < paintSize.width(); ++x) {
            int dstIndex = line + x * 4;
            int srcX = x + static_cast<int>(scaleX * srcPixelArrayB->get(dstIndex + m_xChannelSelector - 1) + scaleAdjustmentX);
            int srcY = y + static_cast<int>(scaleY * srcPixelArrayB->get(dstIndex + m_yChannelSelector - 1) + scaleAdjustmentY);
            for (unsigned channel = 0; channel < 4; ++channel) {
                if (srcX < 0 || srcX >= paintSize.width() || srcY < 0 || srcY >= paintSize.height())
                    dstPixelArray->set(dstIndex + channel, static_cast<unsigned char>(0));
                else {
                    unsigned char pixelValue = srcPixelArrayA->get(srcY * stride + srcX * 4 + channel);
                    dstPixelArray->set(dstIndex + channel, pixelValue);
                }
            }
        }
    }
}
开发者ID:dslab-epfl，项目名称:warr，代码行数:50，代码来源:FEDisplacementMap.cpp

示例3: adoptRef

PassRefPtr<SkImageFilter> FEOffset::createImageFilter(SkiaImageFilterBuilder* builder)
{
    RefPtr<SkImageFilter> input(builder->build(inputEffect(0), operatingColorSpace()));
    Filter* filter = this->filter();
    SkImageFilter::CropRect cropRect = getCropRect(builder->cropOffset());
    return adoptRef(SkOffsetImageFilter::Create(SkFloatToScalar(filter->applyHorizontalScale(m_dx)), SkFloatToScalar(filter->applyVerticalScale(m_dy)), input.get(), &cropRect));
}
开发者ID:venkatarajasekhar，项目名称:Qt，代码行数:7，代码来源:FEOffset.cpp

示例4: determineAbsolutePaintRect

void FEDropShadow::determineAbsolutePaintRect()
{
    Filter* filter = this->filter();
    ASSERT(filter);

    FloatRect absolutePaintRect = inputEffect(0)->absolutePaintRect();
    FloatRect absoluteOffsetPaintRect(absolutePaintRect);
    absoluteOffsetPaintRect.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
    absolutePaintRect.unite(absoluteOffsetPaintRect);
    
    unsigned kernelSizeX = 0;
    unsigned kernelSizeY = 0;
    FEGaussianBlur::calculateKernelSize(filter, kernelSizeX, kernelSizeY, m_stdX, m_stdY);
    
    // We take the half kernel size and multiply it with three, because we run box blur three times.
    absolutePaintRect.inflateX(3 * kernelSizeX * 0.5f);
    absolutePaintRect.inflateY(3 * kernelSizeY * 0.5f);

    if (clipsToBounds())
        absolutePaintRect.intersect(maxEffectRect());
    else
        absolutePaintRect.unite(maxEffectRect());

    setAbsolutePaintRect(enclosingIntRect(absolutePaintRect));
}
开发者ID:SchleunigerAG，项目名称:WinEC7_Qt5.3.1_Fixes，代码行数:25，代码来源:FEDropShadow.cpp

示例5: platformApplySoftware

void FEMorphology::platformApplySoftware()
{
    FilterEffect* in = inputEffect(0);

    ByteArray* dstPixelArray = createPremultipliedImageResult();
    if (!dstPixelArray)
        return;

    setIsAlphaImage(in->isAlphaImage());
    if (m_radiusX <= 0 || m_radiusY <= 0) {
        dstPixelArray->clear();
        return;
    }

    Filter* filter = this->filter();
    int radiusX = static_cast<int>(floorf(filter->applyHorizontalScale(m_radiusX)));
    int radiusY = static_cast<int>(floorf(filter->applyVerticalScale(m_radiusY)));

    IntRect effectDrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
    RefPtr<ByteArray> srcPixelArray = in->asPremultipliedImage(effectDrawingRect);

    PaintingData paintingData;
    paintingData.srcPixelArray = srcPixelArray.get();
    paintingData.dstPixelArray = dstPixelArray;
    paintingData.width = effectDrawingRect.width();
    paintingData.height = effectDrawingRect.height();
    paintingData.radiusX = min(effectDrawingRect.width() - 1, radiusX);
    paintingData.radiusY = min(effectDrawingRect.height() - 1, radiusY);

    platformApply(&paintingData);
}
开发者ID:sysrqb，项目名称:chromium-src，代码行数:31，代码来源:FEMorphology.cpp

示例6: determineAbsolutePaintRect

void FEOffset::determineAbsolutePaintRect()
{
    FloatRect paintRect = inputEffect(0)->absolutePaintRect();
    Filter* filter = this->filter();
    paintRect.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
    paintRect.intersect(maxEffectRect());
    setAbsolutePaintRect(enclosingIntRect(paintRect));
}
开发者ID:1833183060，项目名称:wke，代码行数:8，代码来源:FEOffset.cpp

示例7: determineAbsolutePaintRect

void FEMorphology::determineAbsolutePaintRect()
{
    FloatRect paintRect = inputEffect(0)->absolutePaintRect();
    Filter* filter = this->filter();
    paintRect.inflateX(filter->applyHorizontalScale(m_radiusX));
    paintRect.inflateY(filter->applyVerticalScale(m_radiusY));
    paintRect.intersect(maxEffectRect());
    setAbsolutePaintRect(enclosingIntRect(paintRect));
}
开发者ID:sysrqb，项目名称:chromium-src，代码行数:9，代码来源:FEMorphology.cpp

示例8: Make

sk_sp<SkImageFilter> FEOffset::createImageFilter() {
    Filter* filter = this->getFilter();
    SkImageFilter::CropRect cropRect = getCropRect();
    return SkOffsetImageFilter::Make(
               SkFloatToScalar(filter->applyHorizontalScale(m_dx)),
               SkFloatToScalar(filter->applyVerticalScale(m_dy)),
               SkiaImageFilterBuilder::build(inputEffect(0), operatingColorSpace()),
               &cropRect);
}
开发者ID:mirror，项目名称:chromium，代码行数:9，代码来源:FEOffset.cpp

示例9: mapRect

FloatRect FEDropShadow::mapRect(const FloatRect& rect, bool forward)
{
    FloatRect result = rect;
    Filter* filter = this->filter();
    ASSERT(filter);

    FloatRect offsetRect = rect;
    if (forward)
        offsetRect.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
    else
        offsetRect.move(-filter->applyHorizontalScale(m_dx), -filter->applyVerticalScale(m_dy));
    result.unite(offsetRect);

    IntSize kernelSize = FEGaussianBlur::calculateKernelSize(filter, FloatPoint(m_stdX, m_stdY));

    // We take the half kernel size and multiply it with three, because we run box blur three times.
    result.inflateX(3 * kernelSize.width() * 0.5f);
    result.inflateY(3 * kernelSize.height() * 0.5f);
    return result;
}
开发者ID:335969568，项目名称:Blink-1，代码行数:20，代码来源:FEDropShadow.cpp

示例10: platformApplySoftware

void FEDropShadow::platformApplySoftware()
{
    FilterEffect* in = inputEffect(0);

    ImageBuffer* resultImage = createImageBufferResult();
    if (!resultImage)
        return;

    Filter* filter = this->filter();
    FloatSize blurRadius(filter->applyHorizontalScale(m_stdX), filter->applyVerticalScale(m_stdY));
    FloatSize offset(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));

    FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
    FloatRect drawingRegionWithOffset(drawingRegion);
    drawingRegionWithOffset.move(offset);

    ImageBuffer* sourceImage = in->asImageBuffer();
    ASSERT(sourceImage);
    GraphicsContext* resultContext = resultImage->context();
    ASSERT(resultContext);
    resultContext->setAlpha(m_shadowOpacity);
    resultContext->drawImageBuffer(sourceImage, ColorSpaceDeviceRGB, drawingRegionWithOffset);
    resultContext->setAlpha(1);

    ShadowBlur contextShadow(blurRadius, offset, m_shadowColor, ColorSpaceDeviceRGB);

    // TODO: Direct pixel access to ImageBuffer would avoid copying the ImageData.
    IntRect shadowArea(IntPoint(), resultImage->internalSize());
    RefPtr<Uint8ClampedArray> srcPixelArray = resultImage->getPremultipliedImageData(shadowArea);

    contextShadow.blurLayerImage(srcPixelArray->data(), shadowArea.size(), 4 * shadowArea.size().width());

    resultImage->putByteArray(Premultiplied, srcPixelArray.get(), shadowArea.size(), shadowArea, IntPoint());

    resultContext->setCompositeOperation(CompositeSourceIn);
    resultContext->fillRect(FloatRect(FloatPoint(), absolutePaintRect().size()), m_shadowColor, ColorSpaceDeviceRGB);
    resultContext->setCompositeOperation(CompositeDestinationOver);

    resultImage->context()->drawImageBuffer(sourceImage, ColorSpaceDeviceRGB, drawingRegion);
}
开发者ID:Moondee，项目名称:Artemis，代码行数:40，代码来源:FEDropShadow.cpp

示例11: applySoftware

void FEOffset::applySoftware()
{
    FilterEffect* in = inputEffect(0);

    ImageBuffer* resultImage = createImageBufferResult();
    if (!resultImage)
        return;

    setIsAlphaImage(in->isAlphaImage());

    FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
    Filter* filter = this->filter();
    drawingRegion.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
    resultImage->context()->drawImageBuffer(in->asImageBuffer(), drawingRegion);
}
开发者ID:venkatarajasekhar，项目名称:Qt，代码行数:15，代码来源:FEOffset.cpp

示例12: applySoftware

void FEDisplacementMap::applySoftware()
{
    FilterEffect* in = inputEffect(0);
    FilterEffect* in2 = inputEffect(1);

    ASSERT(m_xChannelSelector != CHANNEL_UNKNOWN);
    ASSERT(m_yChannelSelector != CHANNEL_UNKNOWN);

    Uint8ClampedArray* dstPixelArray = createPremultipliedImageResult();
    if (!dstPixelArray)
        return;

    IntRect effectADrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
    RefPtr<Uint8ClampedArray> srcPixelArrayA = in->asPremultipliedImage(effectADrawingRect);

    IntRect effectBDrawingRect = requestedRegionOfInputImageData(in2->absolutePaintRect());
    RefPtr<Uint8ClampedArray> srcPixelArrayB = in2->asUnmultipliedImage(effectBDrawingRect);

    ASSERT(srcPixelArrayA->length() == srcPixelArrayB->length());

    Filter* filter = this->filter();
    IntSize paintSize = absolutePaintRect().size();
    float scaleX = filter->applyHorizontalScale(m_scale);
    float scaleY = filter->applyVerticalScale(m_scale);
    float scaleForColorX = scaleX / 255.0;
    float scaleForColorY = scaleY / 255.0;
    float scaledOffsetX = 0.5 - scaleX * 0.5;
    float scaledOffsetY = 0.5 - scaleY * 0.5;
    int stride = paintSize.width() * 4;
    for (int y = 0; y < paintSize.height(); ++y) {
        int line = y * stride;
        for (int x = 0; x < paintSize.width(); ++x) {
            int dstIndex = line + x * 4;
            int srcX = x + static_cast<int>(scaleForColorX * srcPixelArrayB->item(dstIndex + m_xChannelSelector - 1) + scaledOffsetX);
            int srcY = y + static_cast<int>(scaleForColorY * srcPixelArrayB->item(dstIndex + m_yChannelSelector - 1) + scaledOffsetY);
            for (unsigned channel = 0; channel < 4; ++channel) {
                if (srcX < 0 || srcX >= paintSize.width() || srcY < 0 || srcY >= paintSize.height()) {
                    dstPixelArray->set(dstIndex + channel, static_cast<unsigned char>(0));
                } else {
                    unsigned char pixelValue = srcPixelArrayA->item(srcY * stride + srcX * 4 + channel);
                    dstPixelArray->set(dstIndex + channel, pixelValue);
                }
            }
        }
    }
}
开发者ID:Rajesh-Veeranki，项目名称:engine，代码行数:46，代码来源:FEDisplacementMap.cpp

示例13: calculateKernelSize

IntSize FEGaussianBlur::calculateKernelSize(const Filter& filter, const FloatPoint& stdDeviation)
{
    FloatPoint stdFilterScaled(filter.applyHorizontalScale(stdDeviation.x()), filter.applyVerticalScale(stdDeviation.y()));
    return calculateUnscaledKernelSize(stdFilterScaled);
}
开发者ID:eocanha，项目名称:webkit，代码行数:5，代码来源:FEGaussianBlur.cpp


注：本文中的Filter::applyHorizontalScale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。