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-rw-r--r--src/com/android/gallery3d/filtershow/pipeline/UpdatePreviewTask.java79
1 files changed, 79 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/pipeline/UpdatePreviewTask.java b/src/com/android/gallery3d/filtershow/pipeline/UpdatePreviewTask.java
new file mode 100644
index 000000000..406cc9bf5
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/pipeline/UpdatePreviewTask.java
@@ -0,0 +1,79 @@
+/*
+ * 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;
+
+import android.graphics.Bitmap;
+import com.android.gallery3d.filtershow.filters.FiltersManager;
+import com.android.gallery3d.filtershow.imageshow.MasterImage;
+
+public class UpdatePreviewTask extends ProcessingTask {
+ private CachingPipeline mPreviewPipeline = null;
+ private boolean mHasUnhandledPreviewRequest = false;
+ private boolean mPipelineIsOn = false;
+
+ public UpdatePreviewTask() {
+ mPreviewPipeline = new CachingPipeline(
+ FiltersManager.getPreviewManager(), "Preview");
+ }
+
+ public void setOriginal(Bitmap bitmap) {
+ mPreviewPipeline.setOriginal(bitmap);
+ mPipelineIsOn = true;
+ }
+
+ public void updatePreview() {
+ if (!mPipelineIsOn) {
+ return;
+ }
+ mHasUnhandledPreviewRequest = true;
+ if (postRequest(null)) {
+ mHasUnhandledPreviewRequest = false;
+ }
+ }
+
+ @Override
+ public boolean isPriorityTask() {
+ return true;
+ }
+
+ @Override
+ public Result doInBackground(Request message) {
+ SharedBuffer buffer = MasterImage.getImage().getPreviewBuffer();
+ SharedPreset preset = MasterImage.getImage().getPreviewPreset();
+ ImagePreset renderingPreset = preset.dequeuePreset();
+ if (renderingPreset != null) {
+ mPreviewPipeline.compute(buffer, renderingPreset, 0);
+ // set the preset we used in the buffer for later inspection UI-side
+ buffer.getProducer().setPreset(renderingPreset);
+ buffer.getProducer().sync();
+ buffer.swapProducer(); // push back the result
+ }
+ return null;
+ }
+
+ @Override
+ public void onResult(Result message) {
+ MasterImage.getImage().notifyObservers();
+ if (mHasUnhandledPreviewRequest) {
+ updatePreview();
+ }
+ }
+
+ public void setPipelineIsOn(boolean pipelineIsOn) {
+ mPipelineIsOn = pipelineIsOn;
+ }
+}