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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.pipeline;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.support.v8.renderscript.Allocation;
import com.android.gallery3d.app.Log;
import com.android.gallery3d.filtershow.cache.BitmapCache;
import com.android.gallery3d.filtershow.filters.FilterRepresentation;
import com.android.gallery3d.filtershow.filters.FilterUserPresetRepresentation;
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;
private BitmapCache mBitmapCache;
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<Integer, Integer>
generalParameters = new HashMap<Integer, Integer>();
public void setBitmapCache(BitmapCache cache) {
mBitmapCache = cache;
}
public void cache(Buffer buffer) {
mBitmapCache.cache(buffer);
}
public void cache(Bitmap bitmap) {
mBitmapCache.cache(bitmap);
}
public Bitmap getBitmap(int w, int h, int type) {
return mBitmapCache.getBitmap(w, h, type);
}
public Bitmap getBitmapCopy(Bitmap source, int type) {
return mBitmapCache.getBitmapCopy(source, type);
}
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) {
if (representation instanceof FilterUserPresetRepresentation) {
// we allow instances of FilterUserPresetRepresentation in a preset only to know if one
// has been applied (so we can show this in the UI). But as all the filters in them are
// applied directly they do not themselves need to do any kind of filtering.
return bitmap;
}
ImageFilter filter = mFiltersManager.getFilterForRepresentation(representation);
if (filter == null){
Log.e(LOGTAG,"No ImageFilter for "+representation.getSerializationName());
}
filter.useRepresentation(representation);
filter.setEnvironment(this);
Bitmap ret = filter.apply(bitmap, mScaleFactor, mQuality);
if (bitmap != ret) {
cache(bitmap);
}
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);
}
public BitmapCache getBimapCache() {
return mBitmapCache;
}
}
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