diff options
Diffstat (limited to 'src/com/android/gallery3d/filtershow/pipeline/SharedPreset.java')
-rw-r--r-- | src/com/android/gallery3d/filtershow/pipeline/SharedPreset.java | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/pipeline/SharedPreset.java b/src/com/android/gallery3d/filtershow/pipeline/SharedPreset.java new file mode 100644 index 000000000..3f850fed2 --- /dev/null +++ b/src/com/android/gallery3d/filtershow/pipeline/SharedPreset.java @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2013 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.gallery3d.filtershow.pipeline; + +public class SharedPreset { + + private volatile ImagePreset mProducerPreset = null; + private volatile ImagePreset mConsumerPreset = null; + private volatile ImagePreset mIntermediatePreset = null; + + public synchronized void enqueuePreset(ImagePreset preset) { + if (mProducerPreset == null || (!mProducerPreset.same(preset))) { + mProducerPreset = new ImagePreset(preset); + } else { + mProducerPreset.updateWith(preset); + } + ImagePreset temp = mIntermediatePreset; + mIntermediatePreset = mProducerPreset; + mProducerPreset = temp; + } + + public synchronized ImagePreset dequeuePreset() { + ImagePreset temp = mConsumerPreset; + mConsumerPreset = mIntermediatePreset; + mIntermediatePreset = temp; + return mConsumerPreset; + } +} |