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/*
* 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.presets;
import android.graphics.Bitmap;
import android.support.v8.renderscript.Allocation;
import android.util.Log;
import com.android.gallery3d.filtershow.cache.CachingPipeline;
import com.android.gallery3d.filtershow.filters.FilterRepresentation;
import com.android.gallery3d.filtershow.filters.FiltersManager;
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 FiltersManager mFiltersManager;
private CachingPipeline mCachingPipeline;
private HashMap<Long, WeakReference<Bitmap>>
bitmapCach = new HashMap<Long, WeakReference<Bitmap>>();
public void cache(Bitmap bitmap) {
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(FiltersManager filtersManager) {
mFiltersManager = filtersManager;
}
public FiltersManager 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.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.setEnvironment(null);
return ret;
}
public CachingPipeline getCachingPipeline() {
return mCachingPipeline;
}
public void setCachingPipeline(CachingPipeline cachingPipeline) {
mCachingPipeline = cachingPipeline;
}
}
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