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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.gallery3d.filtershow.pipeline;
     18 
     19 import android.graphics.Bitmap;
     20 import com.android.gallery3d.filtershow.filters.FiltersManager;
     21 
     22 public class RenderingRequestTask extends ProcessingTask {
     23 
     24     private CachingPipeline mPreviewPipeline = null;
     25     private boolean mPipelineIsOn = false;
     26 
     27     public void setPreviewScaleFactor(float previewScale) {
     28         mPreviewPipeline.setPreviewScaleFactor(previewScale);
     29     }
     30 
     31     static class Render implements Request {
     32         RenderingRequest request;
     33     }
     34 
     35     static class RenderResult implements Result {
     36         RenderingRequest request;
     37     }
     38 
     39     public RenderingRequestTask() {
     40         mPreviewPipeline = new CachingPipeline(
     41                 FiltersManager.getManager(), "Normal");
     42     }
     43 
     44     public void setOriginal(Bitmap bitmap) {
     45         mPreviewPipeline.setOriginal(bitmap);
     46         mPipelineIsOn = true;
     47     }
     48 
     49     public void stop() {
     50         mPreviewPipeline.stop();
     51     }
     52 
     53     public void postRenderingRequest(RenderingRequest request) {
     54         if (!mPipelineIsOn) {
     55             return;
     56         }
     57         Render render = new Render();
     58         render.request = request;
     59         postRequest(render);
     60     }
     61 
     62     @Override
     63     public Result doInBackground(Request message) {
     64         RenderingRequest request = ((Render) message).request;
     65         RenderResult result = null;
     66         if (request.getType() == RenderingRequest.GEOMETRY_RENDERING) {
     67             mPreviewPipeline.renderGeometry(request);
     68         } else if (request.getType() == RenderingRequest.FILTERS_RENDERING) {
     69             mPreviewPipeline.renderFilters(request);
     70         } else {
     71             mPreviewPipeline.render(request);
     72         }
     73         result = new RenderResult();
     74         result.request = request;
     75         return result;
     76     }
     77 
     78     @Override
     79     public void onResult(Result message) {
     80         if (message == null) {
     81             return;
     82         }
     83         RenderingRequest request = ((RenderResult) message).request;
     84         request.markAvailable();
     85     }
     86 
     87 }
     88