IntRect LayerAndroid::visibleContentArea(bool force3dContentVisible) const
{
IntRect area = fullContentArea();
if (subclassType() == LayerAndroid::FixedBackgroundImageLayer)
return area;
// If transform isn't limited to 2D space, return the entire content area.
// Transforming from layers to content coordinates and back doesn't
// preserve 3D.
if (force3dContentVisible && GLUtils::has3dTransform(m_drawTransform))
return area;
// First, we get the transformed area of the layer,
// in content coordinates
IntRect rect = m_drawTransform.mapRect(area);
// Then we apply the clipping
IntRect clip(m_clippingRect);
rect.intersect(clip);
// Now clip with the viewport in content coordinate
IntRect contentViewport(TilesManager::instance()->shader()->contentViewport());
rect.intersect(contentViewport);
// Finally, let's return the visible area, in layers coordinate
return m_drawTransform.inverse().mapRect(rect);
}
IntRect Surface::visibleContentArea(bool force3dContentVisible) const
{
if (singleLayer())
return getFirstLayer()->visibleContentArea(force3dContentVisible);
IntRect rect = m_fullContentArea;
// clip with the viewport in content coordinate
IntRect contentViewport(TilesManager::instance()->shader()->contentViewport());
rect.intersect(contentViewport);
// TODO: handle recursive layer clip
return rect;
}
void LayerAndroid::showLayer(int indent)
{
char spaces[256];
memset(spaces, 0, 256);
for (int i = 0; i < indent; i++)
spaces[i] = ' ';
if (!indent) {
ALOGD("\n\n--- LAYERS TREE ---");
IntRect contentViewport(TilesManager::instance()->shader()->contentViewport());
ALOGD("contentViewport(%d, %d, %d, %d)",
contentViewport.x(), contentViewport.y(),
contentViewport.width(), contentViewport.height());
}
IntRect r(0, 0, getWidth(), getHeight());
IntRect tr = m_drawTransform.mapRect(r);
IntRect visible = visibleContentArea();
IntRect clip(m_clippingRect.x(), m_clippingRect.y(),
m_clippingRect.width(), m_clippingRect.height());
ALOGD("%s s:%x %s %s (%d) [%d:%x - 0x%x] - %s %s - area (%d, %d, %d, %d) - visible (%d, %d, %d, %d) "
"clip (%d, %d, %d, %d) %s %s m_content(%x), pic w: %d h: %d originalLayer: %x %d",
spaces, m_surface, m_haveClip ? "CLIP LAYER" : "", subclassName().ascii().data(),
subclassType(), uniqueId(), this, m_owningLayer,
needsTexture() ? "needsTexture" : "",
m_imageCRC ? "hasImage" : "",
tr.x(), tr.y(), tr.width(), tr.height(),
visible.x(), visible.y(), visible.width(), visible.height(),
clip.x(), clip.y(), clip.width(), clip.height(),
contentIsScrollable() ? "SCROLLABLE" : "",
isPositionFixed() ? "FIXED" : "",
m_content,
m_content ? m_content->width() : -1,
m_content ? m_content->height() : -1,
m_originalLayer, m_originalLayer ? m_originalLayer->uniqueId() : -1);
int count = this->countChildren();
for (int i = 0; i < count; i++)
this->getChild(i)->showLayer(indent + 2);
}
