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Commit a164496b authored by nicolasroard's avatar nicolasroard
Browse files

Fix triple buffer update bug 

bug:11140550

Change-Id: I530bf8b071c7336eb7a20293d6c9c2f5360df47e
parent 7943a83c

src/com/android/gallery3d/filtershow/pipeline/SharedPreset.java

+6 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ public class SharedPreset { 
    private volatile ImagePreset mProducerPreset = null;

    private volatile ImagePreset mConsumerPreset = null;

    private volatile ImagePreset mIntermediatePreset = null;

    private volatile boolean mHasNewContent = false;



    public synchronized void enqueuePreset(ImagePreset preset) {

        if (mProducerPreset == null || (!mProducerPreset.same(preset))) {
@@ -31,12 +32,17 @@ public class SharedPreset { 
        ImagePreset temp = mIntermediatePreset;

        mIntermediatePreset = mProducerPreset;

        mProducerPreset = temp;

        mHasNewContent = true;

    }



    public synchronized ImagePreset dequeuePreset() {

        if (!mHasNewContent) {

            return mConsumerPreset;

        }

        ImagePreset temp = mConsumerPreset;

        mConsumerPreset = mIntermediatePreset;

        mIntermediatePreset = temp;

        mHasNewContent = false;

        return mConsumerPreset;

    }

}