private void configureDisplayInTransactionLocked(DisplayDevice device) {
// Find the logical display that the display device is showing.
LogicalDisplay display = findLogicalDisplayForDeviceLocked(device);
if (display != null && !display.hasContentLocked()) {
display = null;
}
if (display == null) {
display = mLogicalDisplays.get(Display.DEFAULT_DISPLAY);
}
// Apply the logical display configuration to the display device.
if (display == null) {
// TODO: no logical display for the device, blank it
Slog.w(
TAG,
"Missing logical display to use for physical display device: "
+ device.getDisplayDeviceInfoLocked());
return;
} else {
boolean isBlanked = (mAllDisplayBlankStateFromPowerManager == DISPLAY_BLANK_STATE_BLANKED);
display.configureDisplayInTransactionLocked(device, isBlanked);
}
// Update the viewports if needed.
DisplayDeviceInfo info = device.getDisplayDeviceInfoLocked();
if (!mDefaultViewport.valid && (info.flags & DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY) != 0) {
setViewportLocked(mDefaultViewport, display, device);
}
if (!mExternalTouchViewport.valid && info.touch == DisplayDeviceInfo.TOUCH_EXTERNAL) {
setViewportLocked(mExternalTouchViewport, display, device);
}
}
/**
* Tells the display manager whether there is interesting unique content on the specified logical
* display. This is used to control automatic mirroring.
*
* <p>If the display has unique content, then the display manager arranges for it to be presented
* on a physical display if appropriate. Otherwise, the display manager may choose to make the
* physical display mirror some other logical display.
*
* @param displayId The logical display id to update.
* @param hasContent True if the logical display has content.
* @param inTraversal True if called from WindowManagerService during a window traversal prior to
* call to performTraversalInTransactionFromWindowManager.
*/
public void setDisplayHasContent(int displayId, boolean hasContent, boolean inTraversal) {
synchronized (mSyncRoot) {
LogicalDisplay display = mLogicalDisplays.get(displayId);
if (display != null && display.hasContentLocked() != hasContent) {
display.setHasContentLocked(hasContent);
scheduleTraversalLocked(inTraversal);
}
}
}
private void setDisplayHasContentInternal(
int displayId, boolean hasContent, boolean inTraversal) {
synchronized (mSyncRoot) {
LogicalDisplay display = mLogicalDisplays.get(displayId);
if (display != null && display.hasContentLocked() != hasContent) {
if (DEBUG) {
Slog.d(
TAG,
"Display "
+ displayId
+ " hasContent flag changed: "
+ "hasContent="
+ hasContent
+ ", inTraversal="
+ inTraversal);
}
display.setHasContentLocked(hasContent);
scheduleTraversalLocked(inTraversal);
}
}
}
private void configureDisplayInTransactionLocked(DisplayDevice device) {
final DisplayDeviceInfo info = device.getDisplayDeviceInfoLocked();
final boolean ownContent = (info.flags & DisplayDeviceInfo.FLAG_OWN_CONTENT_ONLY) != 0;
// Find the logical display that the display device is showing.
// Certain displays only ever show their own content.
LogicalDisplay display = findLogicalDisplayForDeviceLocked(device);
if (!ownContent) {
if (display != null && !display.hasContentLocked()) {
// If the display does not have any content of its own, then
// automatically mirror the default logical display contents.
display = null;
}
if (display == null) {
display = mLogicalDisplays.get(Display.DEFAULT_DISPLAY);
}
}
// Apply the logical display configuration to the display device.
if (display == null) {
// TODO: no logical display for the device, blank it
Slog.w(
TAG,
"Missing logical display to use for physical display device: "
+ device.getDisplayDeviceInfoLocked());
return;
}
display.configureDisplayInTransactionLocked(device, info.state == Display.STATE_OFF);
// Update the viewports if needed.
if (!mDefaultViewport.valid && (info.flags & DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY) != 0) {
setViewportLocked(mDefaultViewport, display, device);
}
if (!mExternalTouchViewport.valid && info.touch == DisplayDeviceInfo.TOUCH_EXTERNAL) {
setViewportLocked(mExternalTouchViewport, display, device);
}
}
