1 files changed, 167 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/pipeline/FilterEnvironment.java b/src/com/android/gallery3d/filtershow/pipeline/FilterEnvironment.java
new file mode 100644
index 000000000..f97dc757a
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/pipeline/FilterEnvironment.java
@@ -0,0 +1,167 @@
+/*
+ * 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 android.support.v8.renderscript.Allocation;
+
+import com.android.gallery3d.filtershow.filters.FilterRepresentation;
+import com.android.gallery3d.filtershow.filters.FiltersManagerInterface;
+import com.android.gallery3d.filtershow.filters.ImageFilter;
+
+import java.lang.ref.WeakReference;
+import java.util.HashMap;
+
+public class FilterEnvironment {
+    private static final String LOGTAG = "FilterEnvironment";
+    private ImagePreset mImagePreset;
+    private float mScaleFactor;
+    private int mQuality;
+    private FiltersManagerInterface mFiltersManager;
+    private PipelineInterface mPipeline;
+    private volatile boolean mStop = false;
+
+    public static final int QUALITY_ICON = 0;
+    public static final int QUALITY_PREVIEW = 1;
+    public static final int QUALITY_FINAL = 2;
+
+    public synchronized boolean needsStop() {
+        return mStop;
+    }
+
+    public synchronized void setStop(boolean stop) {
+        this.mStop = stop;
+    }
+
+    private HashMap<Long, WeakReference<Bitmap>>
+            bitmapCach = new HashMap<Long, WeakReference<Bitmap>>();
+
+    private HashMap<Integer, Integer>
+                    generalParameters = new HashMap<Integer, Integer>();
+
+    public void cache(Buffer buffer) {
+        if (buffer == null) {
+            return;
+        }
+        Bitmap bitmap = buffer.getBitmap();
+        if (bitmap == null) {
+            return;
+        }
+        Long key = calcKey(bitmap.getWidth(), bitmap.getHeight());
+        bitmapCach.put(key, new WeakReference<Bitmap>(bitmap));
+    }
+
+    public Bitmap getBitmap(int w, int h) {
+        Long key = calcKey(w, h);
+        WeakReference<Bitmap> ref = bitmapCach.remove(key);
+        Bitmap bitmap = null;
+        if (ref != null) {
+            bitmap = ref.get();
+        }
+        if (bitmap == null) {
+            bitmap = Bitmap.createBitmap(
+                    w, h, Bitmap.Config.ARGB_8888);
+        }
+        return bitmap;
+    }
+
+    private Long calcKey(long w, long h) {
+        return (w << 32) | (h << 32);
+    }
+
+    public void setImagePreset(ImagePreset imagePreset) {
+        mImagePreset = imagePreset;
+    }
+
+    public ImagePreset getImagePreset() {
+        return mImagePreset;
+    }
+
+    public void setScaleFactor(float scaleFactor) {
+        mScaleFactor = scaleFactor;
+    }
+
+    public float getScaleFactor() {
+        return mScaleFactor;
+    }
+
+    public void setQuality(int quality) {
+        mQuality = quality;
+    }
+
+    public int getQuality() {
+        return mQuality;
+    }
+
+    public void setFiltersManager(FiltersManagerInterface filtersManager) {
+        mFiltersManager = filtersManager;
+    }
+
+    public FiltersManagerInterface getFiltersManager() {
+        return mFiltersManager;
+    }
+
+    public void applyRepresentation(FilterRepresentation representation,
+                                    Allocation in, Allocation out) {
+        ImageFilter filter = mFiltersManager.getFilterForRepresentation(representation);
+        filter.useRepresentation(representation);
+        filter.setEnvironment(this);
+        if (filter.supportsAllocationInput()) {
+            filter.apply(in, out);
+        }
+        filter.setGeneralParameters();
+        filter.setEnvironment(null);
+    }
+
+    public Bitmap applyRepresentation(FilterRepresentation representation, Bitmap bitmap) {
+        ImageFilter filter = mFiltersManager.getFilterForRepresentation(representation);
+        filter.useRepresentation(representation);
+        filter.setEnvironment(this);
+        Bitmap ret = filter.apply(bitmap, mScaleFactor, mQuality);
+        filter.setGeneralParameters();
+        filter.setEnvironment(null);
+        return ret;
+    }
+
+    public PipelineInterface getPipeline() {
+        return mPipeline;
+    }
+
+    public void setPipeline(PipelineInterface cachingPipeline) {
+        mPipeline = cachingPipeline;
+    }
+
+    public synchronized void clearGeneralParameters() {
+        generalParameters = null;
+    }
+
+    public synchronized Integer getGeneralParameter(int id) {
+        if (generalParameters == null || !generalParameters.containsKey(id)) {
+            return null;
+        }
+        return generalParameters.get(id);
+    }
+
+    public synchronized void setGeneralParameter(int id, int value) {
+        if (generalParameters == null) {
+            generalParameters = new HashMap<Integer, Integer>();
+        }
+
+        generalParameters.put(id, value);
+    }
+
+}