void GraphicsLayerClutter::setNeedsDisplayInRect(const FloatRect& r)
{
if (!drawsContent())
return;
FloatRect rect(r);
FloatRect layerBounds(FloatPoint(), m_size);
rect.intersect(layerBounds);
if (rect.isEmpty())
return;
const size_t maxDirtyRects = 32;
for (size_t i = 0; i < m_dirtyRects.size(); ++i) {
if (m_dirtyRects[i].contains(rect))
return;
}
if (m_dirtyRects.size() < maxDirtyRects)
m_dirtyRects.append(rect);
else
m_dirtyRects[0].unite(rect);
noteLayerPropertyChanged(DirtyRectsChanged);
}
IntRect ContentLayerChromium::visibleLayerRect(const IntRect& targetSurfaceRect)
{
if (targetSurfaceRect.isEmpty())
return targetSurfaceRect;
const IntRect layerBoundRect = layerBounds();
const TransformationMatrix transform = tilingTransform();
// Is this layer fully contained within the target surface?
IntRect layerInSurfaceSpace = transform.mapRect(layerBoundRect);
if (targetSurfaceRect.contains(layerInSurfaceSpace))
return layerBoundRect;
// If the layer doesn't fill up the entire surface, then find the part of
// the surface rect where the layer could be visible. This avoids trying to
// project surface rect points that are behind the projection point.
IntRect minimalSurfaceRect = targetSurfaceRect;
minimalSurfaceRect.intersect(layerInSurfaceSpace);
// Project the corners of the target surface rect into the layer space.
// This bounding rectangle may be larger than it needs to be (being
// axis-aligned), but is a reasonable filter on the space to consider.
// Non-invertible transforms will create an empty rect here.
const TransformationMatrix surfaceToLayer = transform.inverse();
IntRect layerRect = surfaceToLayer.projectQuad(FloatQuad(FloatRect(minimalSurfaceRect))).enclosingBoundingBox();
layerRect.intersect(layerBoundRect);
return layerRect;
}
void ContentLayerChromium::paintContentsIfDirty(const IntRect& targetSurfaceRect)
{
ASSERT(drawsContent());
ASSERT(layerRenderer());
updateLayerSize(layerBounds().size());
IntRect layerRect = visibleLayerRect(targetSurfaceRect);
if (layerRect.isEmpty())
return;
IntRect dirty = enclosingIntRect(m_dirtyRect);
dirty.intersect(layerBounds());
m_tiler->invalidateRect(dirty);
m_tiler->prepareToUpdate(layerRect);
m_dirtyRect = FloatRect();
}
LayoutRect RenderLayerScrollableArea::exposeRect(const LayoutRect& rect, const ScrollAlignment& alignX, const ScrollAlignment& alignY)
{
LayoutRect localExposeRect(box().absoluteToLocalQuad(FloatQuad(FloatRect(rect)), UseTransforms).boundingBox());
LayoutRect layerBounds(0, 0, box().clientWidth(), box().clientHeight());
LayoutRect r = ScrollAlignment::getRectToExpose(layerBounds, localExposeRect, alignX, alignY);
IntSize clampedScrollOffset = clampScrollOffset(adjustedScrollOffset() + toIntSize(roundedIntRect(r).location()));
if (clampedScrollOffset == adjustedScrollOffset())
return rect;
IntSize oldScrollOffset = adjustedScrollOffset();
scrollToOffset(clampedScrollOffset);
IntSize scrollOffsetDifference = adjustedScrollOffset() - oldScrollOffset;
localExposeRect.move(-scrollOffsetDifference);
return LayoutRect(box().localToAbsoluteQuad(FloatQuad(FloatRect(localExposeRect)), UseTransforms).boundingBox());
}
bool GraphicsLayerAndroid::repaint()
{
LOG("(%x) repaint(), gPaused(%d) m_needsRepaint(%d) m_haveContents(%d) ",
this, gPaused, m_needsRepaint, m_haveContents);
if (!gPaused && m_haveContents && m_needsRepaint && !m_image) {
// with SkPicture, we request the entire layer's content.
IntRect layerBounds(0, 0, m_size.width(), m_size.height());
RenderLayer* layer = renderLayerFromClient(m_client);
if (!layer)
return false;
if (m_foregroundLayer) {
PaintingPhase phase(this);
// Paint the background into a separate context.
phase.set(GraphicsLayerPaintBackground);
if (!paintContext(m_contentLayer->recordContext(), layerBounds))
return false;
m_contentLayer->checkTextPresence();
// Construct the foreground layer and draw.
RenderBox* box = layer->renderBox();
int outline = box->view()->maximalOutlineSize();
IntRect contentsRect(0, 0,
box->borderLeft() + box->borderRight() + layer->scrollWidth(),
box->borderTop() + box->borderBottom() + layer->scrollHeight());
contentsRect.inflate(outline);
// Update the foreground layer size.
m_foregroundLayer->setSize(contentsRect.width(), contentsRect.height());
// Paint everything else into the main recording canvas.
phase.clear(GraphicsLayerPaintBackground);
// Paint at 0,0.
IntSize scroll = layer->scrolledContentOffset();
layer->scrollToOffset(0, 0);
// At this point, it doesn't matter if painting failed.
(void) paintContext(m_foregroundLayer->recordContext(), contentsRect);
m_foregroundLayer->checkTextPresence();
layer->scrollToOffset(scroll.width(), scroll.height());
// Construct the clip layer for masking the contents.
IntRect clip = layer->renderer()->absoluteBoundingBoxRect();
// absoluteBoundingBoxRect does not include the outline so we need
// to offset the position.
int x = box->borderLeft() + outline;
int y = box->borderTop() + outline;
int width = clip.width() - box->borderLeft() - box->borderRight();
int height = clip.height() - box->borderTop() - box->borderBottom();
m_foregroundClipLayer->setPosition(x, y);
m_foregroundClipLayer->setSize(width, height);
// Need to offset the foreground layer by the clip layer in order
// for the contents to be in the correct position.
m_foregroundLayer->setPosition(-x, -y);
// Set the scrollable bounds of the layer.
m_foregroundLayer->setScrollLimits(-x, -y, m_size.width(), m_size.height());
// Invalidate the entire layer for now, as webkit will only send the
// setNeedsDisplayInRect() for the visible (clipped) scrollable area,
// offsetting the invals by the scroll position would not be enough.
// TODO: have webkit send us invals even for non visible area
SkRegion region;
region.setRect(0, 0, contentsRect.width(), contentsRect.height());
m_foregroundLayer->markAsDirty(region);
m_foregroundLayer->needsRepaint();
} else {
// If there is no contents clip, we can draw everything into one
// picture.
if (!paintContext(m_contentLayer->recordContext(), layerBounds))
return false;
m_contentLayer->checkTextPresence();
// Check for a scrollable iframe and report the scrolling
// limits based on the view size.
if (m_contentLayer->contentIsScrollable()) {
FrameView* view = layer->renderer()->frame()->view();
static_cast<ScrollableLayerAndroid*>(m_contentLayer)->setScrollLimits(
m_position.x(), m_position.y(), view->layoutWidth(), view->layoutHeight());
}
}
LOG("(%x) repaint() on (%.2f,%.2f) contentlayer(%.2f,%.2f,%.2f,%.2f)paintGraphicsLayer called!",
this, m_size.width(), m_size.height(),
m_contentLayer->getPosition().fX,
m_contentLayer->getPosition().fY,
m_contentLayer->getSize().width(),
m_contentLayer->getSize().height());
m_contentLayer->markAsDirty(m_dirtyRegion);
m_dirtyRegion.setEmpty();
m_contentLayer->needsRepaint();
m_needsRepaint = false;
return true;
}
if (m_needsRepaint && m_image && m_newImage) {
// We need to tell the GL thread that we will need to repaint the
// texture. Only do so if we effectively have a new image!
m_contentLayer->markAsDirty(m_dirtyRegion);
m_dirtyRegion.setEmpty();
m_contentLayer->needsRepaint();
m_newImage = false;
m_needsRepaint = false;
return true;
}
return false;
}
void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) {
#if DEBUG_DISPLAY_LIST
properties().debugOutputProperties(handler.level() + 1);
#endif
if (properties().getLeft() != 0 || properties().getTop() != 0) {
renderer.translate(properties().getLeft(), properties().getTop());
}
if (properties().getStaticMatrix()) {
renderer.concatMatrix(*properties().getStaticMatrix());
} else if (properties().getAnimationMatrix()) {
renderer.concatMatrix(*properties().getAnimationMatrix());
}
if (properties().hasTransformMatrix()) {
if (properties().isTransformTranslateOnly()) {
renderer.translate(properties().getTranslationX(), properties().getTranslationY());
} else {
renderer.concatMatrix(*properties().getTransformMatrix());
}
}
const bool isLayer = properties().effectiveLayerType() != LayerType::None;
int clipFlags = properties().getClippingFlags();
if (properties().getAlpha() < 1) {
if (isLayer) {
clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer
}
if (CC_LIKELY(isLayer || !properties().getHasOverlappingRendering())) {
// simply scale rendering content's alpha
renderer.scaleAlpha(properties().getAlpha());
} else {
// savelayer needed to create an offscreen buffer
Rect layerBounds(0, 0, getWidth(), getHeight());
if (clipFlags) {
properties().getClippingRectForFlags(clipFlags, &layerBounds);
clipFlags = 0; // all clipping done by savelayer
}
SaveLayerOp* op = new (handler.allocator()) SaveLayerOp(
layerBounds.left, layerBounds.top,
layerBounds.right, layerBounds.bottom,
(int) (properties().getAlpha() * 255),
SaveFlags::HasAlphaLayer | SaveFlags::ClipToLayer);
handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds());
}
if (CC_UNLIKELY(ATRACE_ENABLED() && properties().promotedToLayer())) {
// pretend alpha always causes savelayer to warn about
// performance problem affecting old versions
ATRACE_FORMAT("%s alpha caused saveLayer %dx%d", getName(),
static_cast<int>(getWidth()),
static_cast<int>(getHeight()));
}
}
if (clipFlags) {
Rect clipRect;
properties().getClippingRectForFlags(clipFlags, &clipRect);
ClipRectOp* op = new (handler.allocator()) ClipRectOp(
clipRect.left, clipRect.top, clipRect.right, clipRect.bottom,
SkRegion::kIntersect_Op);
handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds());
}
// TODO: support nesting round rect clips
if (mProperties.getRevealClip().willClip()) {
Rect bounds;
mProperties.getRevealClip().getBounds(&bounds);
renderer.setClippingRoundRect(handler.allocator(), bounds, mProperties.getRevealClip().getRadius());
} else if (mProperties.getOutline().willClip()) {
renderer.setClippingOutline(handler.allocator(), &(mProperties.getOutline()));
}
}
