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Commit 87abde8a authored by Jamie Gennis's avatar Jamie Gennis
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SystemUI: Disable HW acceleration for status bar 

This change switches the status bar rendering to use CPU rendering to an
RGB_565 window.

Change-Id: I45c03989efc9cc9ea71ff169fafedf048de9d612
parent 59882fb8

packages/SystemUI/src/com/android/systemui/statusbar/StatusBar.java

+9 −4
Original line number Diff line number Diff line
@@ -118,15 +118,20 @@ public abstract class StatusBar extends SystemUI implements CommandQueue.Callbac 
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE

                    | WindowManager.LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING

                    | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH,

                PixelFormat.OPAQUE);

                // We use a pixel format of RGB565 for the status bar to save memory bandwidth and

                // to ensure that the layer can be handled by HWComposer.  On some devices the

                // HWComposer is unable to handle SW-rendered RGBX_8888 layers.

                PixelFormat.RGB_565);

        

        // the status bar should be in an overlay if possible

        final Display defaultDisplay 

            = ((WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE))

                .getDefaultDisplay();

        if (ActivityManager.isHighEndGfx(defaultDisplay)) {

            lp.flags |= WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;

        }



        // We explicitly leave FLAG_HARDWARE_ACCELERATED out of the flags.  The status bar occupies

        // very little screen real-estate and is updated fairly frequently.  By using CPU rendering

        // for the status bar, we prevent the GPU from having to wake up just to do these small

        // updates, which should help keep power consumption down.



        lp.gravity = getStatusBarGravity();

        lp.setTitle("StatusBar");