public ScreenRotationAnimation(
Context context,
Display display,
SurfaceSession session,
boolean inTransaction,
int originalWidth,
int originalHeight,
int originalRotation,
int exitAnim,
int enterAnim) {
mContext = context;
mDisplay = display;
mExitAnimId = exitAnim;
mEnterAnimId = enterAnim;
// Screenshot does NOT include rotation!
if (originalRotation == Surface.ROTATION_90 || originalRotation == Surface.ROTATION_270) {
mWidth = originalHeight;
mHeight = originalWidth;
} else {
mWidth = originalWidth;
mHeight = originalHeight;
}
mOriginalRotation = originalRotation;
mOriginalWidth = originalWidth;
mOriginalHeight = originalHeight;
if (!inTransaction) {
if (WindowManagerService.SHOW_LIGHT_TRANSACTIONS)
Slog.i(WindowManagerService.TAG, ">>> OPEN TRANSACTION ScreenRotationAnimation");
Surface.openTransaction();
}
try {
try {
if (WindowManagerService.DEBUG_SURFACE_TRACE) {
mSurface =
new SurfaceTrace(
session,
"FreezeSurface",
mWidth,
mHeight,
PixelFormat.OPAQUE,
Surface.FX_SURFACE_SCREENSHOT | Surface.HIDDEN);
} else {
mSurface =
new Surface(
session,
"FreezeSurface",
mWidth,
mHeight,
PixelFormat.OPAQUE,
Surface.FX_SURFACE_SCREENSHOT | Surface.HIDDEN);
}
if (!mSurface.isValid()) {
// Screenshot failed, punt.
mSurface = null;
return;
}
mSurface.setLayerStack(mDisplay.getLayerStack());
mSurface.setLayer(FREEZE_LAYER + 1);
mSurface.setAlpha(0);
mSurface.show();
} catch (Surface.OutOfResourcesException e) {
Slog.w(TAG, "Unable to allocate freeze surface", e);
}
/// M: Add systrace for orientation chagnge performance analysis
Trace.traceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "ScreenRotationAnimation:Create");
Slog.i(WindowManagerService.TAG, " FREEZE " + mSurface + ": CREATE");
Trace.traceEnd(Trace.TRACE_TAG_WINDOW_MANAGER);
setRotationInTransaction(originalRotation);
} finally {
if (!inTransaction) {
Surface.closeTransaction();
if (WindowManagerService.SHOW_LIGHT_TRANSACTIONS)
Slog.i(WindowManagerService.TAG, "<<< CLOSE TRANSACTION ScreenRotationAnimation");
}
}
}
