本文整理汇总了C++中FilterEffectRenderer::absoluteFilterRegion方法的典型用法代码示例。如果您正苦于以下问题：C++ FilterEffectRenderer::absoluteFilterRegion方法的具体用法？C++ FilterEffectRenderer::absoluteFilterRegion怎么用？C++ FilterEffectRenderer::absoluteFilterRegion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FilterEffectRenderer的用法示例。
在下文中一共展示了FilterEffectRenderer::absoluteFilterRegion方法的2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: beginFilterEffect
GraphicsContext* FilterEffectRendererHelper::beginFilterEffect(GraphicsContext* oldContext)
{
ASSERT(m_renderLayer);
FilterEffectRenderer* filter = m_renderLayer->filterRenderer();
filter->allocateBackingStoreIfNeeded();
// Paint into the context that represents the SourceGraphic of the filter.
GraphicsContext* sourceGraphicsContext = filter->inputContext();
if (!sourceGraphicsContext || !FilterEffect::isFilterSizeValid(filter->absoluteFilterRegion())) {
// Disable the filters and continue.
m_haveFilterEffect = false;
return oldContext;
}
m_savedGraphicsContext = oldContext;
// Translate the context so that the contents of the layer is captuterd in the offscreen memory buffer.
sourceGraphicsContext->save();
// FIXME: can we just use sourceImageRect for everything, and get rid of
// m_repaintRect?
FloatPoint offset = filter->sourceImageRect().location();
sourceGraphicsContext->translate(-offset.x(), -offset.y());
sourceGraphicsContext->clearRect(m_repaintRect);
sourceGraphicsContext->clip(m_repaintRect);
return sourceGraphicsContext;
}示例2: beginFilterEffect
GraphicsContext* FilterEffectRendererHelper::beginFilterEffect(GraphicsContext* context)
{
ASSERT(m_renderLayer);
FilterEffectRenderer* filter = m_renderLayer->filterRenderer();
if (m_renderLayer->renderer()->document().settings()->deferredFiltersEnabled()) {
SkiaImageFilterBuilder builder(context);
RefPtr<ImageFilter> imageFilter = builder.build(filter->lastEffect().get(), ColorSpaceDeviceRGB);
if (!imageFilter) {
m_haveFilterEffect = false;
return context;
}
m_savedGraphicsContext = context;
context->save();
FloatRect boundaries = mapImageFilterRect(imageFilter.get(), m_filterBoxRect);
context->translate(m_filterBoxRect.x(), m_filterBoxRect.y());
boundaries.move(-m_filterBoxRect.x(), -m_filterBoxRect.y());
context->beginLayer(1, CompositeSourceOver, &boundaries, ColorFilterNone, imageFilter.get());
context->translate(-m_filterBoxRect.x(), -m_filterBoxRect.y());
return context;
}
filter->allocateBackingStoreIfNeeded();
// Paint into the context that represents the SourceGraphic of the filter.
GraphicsContext* sourceGraphicsContext = filter->inputContext();
if (!sourceGraphicsContext || !FilterEffect::isFilterSizeValid(filter->absoluteFilterRegion())) {
// Disable the filters and continue.
m_haveFilterEffect = false;
return context;
}
m_savedGraphicsContext = context;
// Translate the context so that the contents of the layer is captuterd in the offscreen memory buffer.
sourceGraphicsContext->save();
// FIXME: can we just use sourceImageRect for everything, and get rid of
// m_paintInvalidationRect?
FloatPoint offset = filter->sourceImageRect().location();
sourceGraphicsContext->translate(-offset.x(), -offset.y());
sourceGraphicsContext->clearRect(m_paintInvalidationRect);
sourceGraphicsContext->clip(m_paintInvalidationRect);
return sourceGraphicsContext;
}