Add type to DisplayViewport
Refactor DisplayViewport to treat internal, external, and virtual
display viewports more equally. Now stored in single array, and mLocked
contains the most up-to-date copy of these. Still enforce the
requirement that there can only be 1 internal and 1 external viewport.
We should remove this requirement in the future.
Bug: 111108021
Test: atest DisplayManagerServiceTest
Change-Id: I6fca9725f6e4180063c86f3c2bc34906ac1d0024
diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index 0eff7f5..e70460a 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -17,15 +17,14 @@
package com.android.server.display;
import static android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR;
+import static android.hardware.display.DisplayManager
+ .VIRTUAL_DISPLAY_FLAG_CAN_SHOW_WITH_INSECURE_KEYGUARD;
import static android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY;
import static android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC;
import static android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_SECURE;
-import static android.hardware.display.DisplayManager
- .VIRTUAL_DISPLAY_FLAG_CAN_SHOW_WITH_INSECURE_KEYGUARD;
-
-import com.android.internal.annotations.VisibleForTesting;
-import com.android.internal.util.DumpUtils;
-import com.android.internal.util.IndentingPrintWriter;
+import static android.hardware.display.DisplayViewport.VIEWPORT_EXTERNAL;
+import static android.hardware.display.DisplayViewport.VIEWPORT_INTERNAL;
+import static android.hardware.display.DisplayViewport.VIEWPORT_VIRTUAL;
import android.Manifest;
import android.annotation.NonNull;
@@ -45,8 +44,8 @@
import android.hardware.display.Curve;
import android.hardware.display.DisplayManagerGlobal;
import android.hardware.display.DisplayManagerInternal;
-import android.hardware.display.DisplayViewport;
import android.hardware.display.DisplayManagerInternal.DisplayTransactionListener;
+import android.hardware.display.DisplayViewport;
import android.hardware.display.IDisplayManager;
import android.hardware.display.IDisplayManagerCallback;
import android.hardware.display.IVirtualDisplayCallback;
@@ -83,14 +82,17 @@
import android.view.Surface;
import android.view.SurfaceControl;
-import com.android.internal.util.Preconditions;
+import com.android.internal.annotations.GuardedBy;
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.util.DumpUtils;
+import com.android.internal.util.IndentingPrintWriter;
import com.android.server.AnimationThread;
import com.android.server.DisplayThread;
import com.android.server.LocalServices;
import com.android.server.SystemService;
import com.android.server.UiThread;
-import com.android.server.wm.WindowManagerInternal;
import com.android.server.wm.SurfaceAnimationThread;
+import com.android.server.wm.WindowManagerInternal;
import java.io.FileDescriptor;
import java.io.PrintWriter;
@@ -256,9 +258,8 @@
// Viewports of the default display and the display that should receive touch
// input from an external source. Used by the input system.
- private final DisplayViewport mDefaultViewport = new DisplayViewport();
- private final DisplayViewport mExternalTouchViewport = new DisplayViewport();
- private final ArrayList<DisplayViewport> mVirtualTouchViewports = new ArrayList<>();
+ @GuardedBy("mSyncRoot")
+ private final ArrayList<DisplayViewport> mViewports = new ArrayList<>();
// Persistent data store for all internal settings maintained by the display manager service.
private final PersistentDataStore mPersistentDataStore = new PersistentDataStore();
@@ -272,9 +273,7 @@
// Temporary viewports, used when sending new viewport information to the
// input system. May be used outside of the lock but only on the handler thread.
- private final DisplayViewport mTempDefaultViewport = new DisplayViewport();
- private final DisplayViewport mTempExternalTouchViewport = new DisplayViewport();
- private final ArrayList<DisplayViewport> mTempVirtualTouchViewports = new ArrayList<>();
+ private final ArrayList<DisplayViewport> mTempViewports = new ArrayList<>();
// The default color mode for default displays. Overrides the usual
// Display.Display.COLOR_MODE_DEFAULT for displays with the
@@ -1255,9 +1254,7 @@
}
private void clearViewportsLocked() {
- mDefaultViewport.valid = false;
- mExternalTouchViewport.valid = false;
- mVirtualTouchViewports.clear();
+ mViewports.clear();
}
private void configureDisplayLocked(SurfaceControl.Transaction t, DisplayDevice device) {
@@ -1287,40 +1284,89 @@
}
display.configureDisplayLocked(t, 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);
+ // Update the corresponding viewport.
+ DisplayViewport internalViewport = getInternalViewportLocked();
+ if ((info.flags & DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY) != 0) {
+ populateViewportLocked(internalViewport, display, device);
}
- if (!mExternalTouchViewport.valid
- && info.touch == DisplayDeviceInfo.TOUCH_EXTERNAL) {
- setViewportLocked(mExternalTouchViewport, display, device);
+ DisplayViewport externalViewport = getExternalViewportLocked();
+ if (info.touch == DisplayDeviceInfo.TOUCH_EXTERNAL) {
+ populateViewportLocked(externalViewport, display, device);
+ } else if (!externalViewport.valid) {
+ // TODO (b/116850516) move this logic into InputReader
+ externalViewport.copyFrom(internalViewport);
+ externalViewport.type = DisplayViewport.VIEWPORT_EXTERNAL;
}
if (info.touch == DisplayDeviceInfo.TOUCH_VIRTUAL && !TextUtils.isEmpty(info.uniqueId)) {
- final DisplayViewport viewport = getVirtualTouchViewportLocked(info.uniqueId);
- setViewportLocked(viewport, display, device);
+ final DisplayViewport viewport = getVirtualViewportLocked(info.uniqueId);
+ populateViewportLocked(viewport, display, device);
}
}
- /** Gets the virtual device viewport or creates it if not yet created. */
- private DisplayViewport getVirtualTouchViewportLocked(@NonNull String uniqueId) {
+ /** Get the virtual device viewport that has the specified uniqueId.
+ * If such viewport does not exist, create it. */
+ private DisplayViewport getVirtualViewportLocked(@NonNull String uniqueId) {
DisplayViewport viewport;
- final int count = mVirtualTouchViewports.size();
+ final int count = mViewports.size();
for (int i = 0; i < count; i++) {
- viewport = mVirtualTouchViewports.get(i);
+ viewport = mViewports.get(i);
if (uniqueId.equals(viewport.uniqueId)) {
+ if (viewport.type != VIEWPORT_VIRTUAL) {
+ Slog.wtf(TAG, "Found a viewport with uniqueId '" + uniqueId
+ + "' but it has type " + DisplayViewport.typeToString(viewport.type)
+ + " (expected VIRTUAL)");
+ continue;
+ }
return viewport;
}
}
viewport = new DisplayViewport();
viewport.uniqueId = uniqueId;
- mVirtualTouchViewports.add(viewport);
+ viewport.type = VIEWPORT_VIRTUAL;
+ mViewports.add(viewport);
return viewport;
}
- private static void setViewportLocked(DisplayViewport viewport,
+ private DisplayViewport getInternalViewportLocked() {
+ return getViewportByTypeLocked(VIEWPORT_INTERNAL);
+ }
+
+ private DisplayViewport getExternalViewportLocked() {
+ return getViewportByTypeLocked(VIEWPORT_EXTERNAL);
+ }
+
+ /**
+ * Get internal or external viewport. Create it if does not currently exist.
+ * @param viewportType - either INTERNAL or EXTERNAL
+ * @return the viewport with the requested type
+ */
+ private DisplayViewport getViewportByTypeLocked(int viewportType) {
+ // Only allow a single INTERNAL or EXTERNAL viewport, which makes this function possible.
+ // TODO (b/116824030) allow multiple EXTERNAL viewports and remove this function.
+ // Creates the viewport if none exists.
+ if (viewportType != VIEWPORT_INTERNAL && viewportType != VIEWPORT_EXTERNAL) {
+ Slog.wtf(TAG, "Cannot call getViewportByTypeLocked for type "
+ + DisplayViewport.typeToString(viewportType));
+ return null;
+ }
+ DisplayViewport viewport;
+ final int count = mViewports.size();
+ for (int i = 0; i < count; i++) {
+ viewport = mViewports.get(i);
+ if (viewport.type == viewportType) {
+ return viewport;
+ }
+ }
+
+ viewport = new DisplayViewport();
+ viewport.type = viewportType;
+ mViewports.add(viewport);
+ return viewport;
+ }
+
+ private static void populateViewportLocked(DisplayViewport viewport,
LogicalDisplay display, DisplayDevice device) {
viewport.valid = true;
viewport.displayId = display.getDisplayIdLocked();
@@ -1400,9 +1446,7 @@
pw.println(" mPendingTraversal=" + mPendingTraversal);
pw.println(" mGlobalDisplayState=" + Display.stateToString(mGlobalDisplayState));
pw.println(" mNextNonDefaultDisplayId=" + mNextNonDefaultDisplayId);
- pw.println(" mDefaultViewport=" + mDefaultViewport);
- pw.println(" mExternalTouchViewport=" + mExternalTouchViewport);
- pw.println(" mVirtualTouchViewports=" + mVirtualTouchViewports);
+ pw.println(" mViewports=" + mViewports);
pw.println(" mDefaultDisplayDefaultColorMode=" + mDefaultDisplayDefaultColorMode);
pw.println(" mSingleDisplayDemoMode=" + mSingleDisplayDemoMode);
pw.println(" mWifiDisplayScanRequestCount=" + mWifiDisplayScanRequestCount);
@@ -1522,18 +1566,19 @@
break;
case MSG_UPDATE_VIEWPORT: {
+ final boolean changed;
synchronized (mSyncRoot) {
- mTempDefaultViewport.copyFrom(mDefaultViewport);
- mTempExternalTouchViewport.copyFrom(mExternalTouchViewport);
- if (!mTempVirtualTouchViewports.equals(mVirtualTouchViewports)) {
- mTempVirtualTouchViewports.clear();
- for (DisplayViewport d : mVirtualTouchViewports) {
- mTempVirtualTouchViewports.add(d.makeCopy());
- }
+ changed = !mTempViewports.equals(mViewports);
+ if (changed) {
+ mTempViewports.clear();
+ for (DisplayViewport d : mViewports) {
+ mTempViewports.add(d.makeCopy());
+ }
}
}
- mInputManagerInternal.setDisplayViewports(mTempDefaultViewport,
- mTempExternalTouchViewport, mTempVirtualTouchViewports);
+ if (changed) {
+ mInputManagerInternal.setDisplayViewports(mTempViewports);
+ }
break;
}