本文整理汇总了C++中FilterEffectRenderer::setFilterRegion方法的典型用法代码示例。如果您正苦于以下问题：C++ FilterEffectRenderer::setFilterRegion方法的具体用法？C++ FilterEffectRenderer::setFilterRegion怎么用？C++ FilterEffectRenderer::setFilterRegion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::setFilterRegion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: prepareFilterEffect
bool FilterEffectRendererHelper::prepareFilterEffect(RenderLayer* renderLayer, const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect, const LayoutRect& layerRepaintRect)
{
ASSERT(m_haveFilterEffect && renderLayer->filterRenderer());
m_renderLayer = renderLayer;
m_repaintRect = dirtyRect;
FilterEffectRenderer* filter = renderLayer->filterRenderer();
LayoutRect filterSourceRect = filter->computeSourceImageRectForDirtyRect(filterBoxRect, dirtyRect);
if (filterSourceRect.isEmpty()) {
// The dirty rect is not in view, just bail out.
m_haveFilterEffect = false;
return false;
}
AffineTransform absoluteTransform;
absoluteTransform.translate(filterBoxRect.x(), filterBoxRect.y());
filter->setAbsoluteTransform(absoluteTransform);
filter->setAbsoluteFilterRegion(filterSourceRect);
filter->setFilterRegion(absoluteTransform.inverse().mapRect(filterSourceRect));
filter->lastEffect()->determineFilterPrimitiveSubregion();
bool hasUpdatedBackingStore = filter->updateBackingStoreRect(filterSourceRect);
if (filter->hasFilterThatMovesPixels()) {
if (hasUpdatedBackingStore)
m_repaintRect = filterSourceRect;
else {
m_repaintRect.unite(layerRepaintRect);
m_repaintRect.intersect(filterSourceRect);
}
}
return true;
}示例2: prepareFilterEffect
bool FilterEffectRendererHelper::prepareFilterEffect(RenderLayer* renderLayer, const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect)
{
ASSERT(m_haveFilterEffect && renderLayer->filterRenderer());
m_renderLayer = renderLayer;
m_repaintRect = dirtyRect;
// Get the zoom factor to scale the filterSourceRect input
const RenderLayerModelObject* renderer = renderLayer->renderer();
const RenderStyle* style = renderer ? renderer->style() : 0;
float zoom = style ? style->effectiveZoom() : 1.0f;
// Prepare a transformation that brings the coordinates into the space
// filter coordinates are defined in.
AffineTransform absoluteTransform;
// FIXME: Should these really be upconverted to doubles and not rounded? crbug.com/350474
absoluteTransform.translate(filterBoxRect.x().toDouble(), filterBoxRect.y().toDouble());
absoluteTransform.scale(zoom, zoom);
FilterEffectRenderer* filter = renderLayer->filterRenderer();
filter->setAbsoluteTransform(absoluteTransform);
IntRect filterSourceRect = pixelSnappedIntRect(filter->computeSourceImageRectForDirtyRect(filterBoxRect, dirtyRect));
if (filterSourceRect.isEmpty()) {
// The dirty rect is not in view, just bail out.
m_haveFilterEffect = false;
return false;
}
filter->setFilterRegion(filter->mapAbsoluteRectToLocalRect(filterSourceRect));
filter->lastEffect()->determineFilterPrimitiveSubregion(MapRectForward);
bool hasUpdatedBackingStore = filter->updateBackingStoreRect(filterSourceRect);
if (filter->hasFilterThatMovesPixels()) {
if (hasUpdatedBackingStore)
m_repaintRect = filterSourceRect;
else
m_repaintRect.intersect(filterSourceRect);
}
return true;
}