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/*
* Copyright (C) 2012 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.filters;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import com.android.gallery3d.app.Log;
public class ImageFilterFx extends ImageFilter {
private static final String LOGTAG = "ImageFilterFx";
private FilterFxRepresentation mParameters = null;
private Bitmap mFxBitmap = null;
private Resources mResources = null;
private int mFxBitmapId = 0;
public ImageFilterFx() {
}
@Override
public void freeResources() {
if (mFxBitmap != null) mFxBitmap.recycle();
mFxBitmap = null;
}
@Override
public FilterRepresentation getDefaultRepresentation() {
return null;
}
public void useRepresentation(FilterRepresentation representation) {
FilterFxRepresentation parameters = (FilterFxRepresentation) representation;
mParameters = parameters;
}
public FilterFxRepresentation getParameters() {
return mParameters;
}
native protected void nativeApplyFilter(Bitmap bitmap, int w, int h,Bitmap fxBitmap, int fxw, int fxh);
@Override
public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) {
if (getParameters() == null || mResources == null) {
return bitmap;
}
int w = bitmap.getWidth();
int h = bitmap.getHeight();
int bitmapResourceId = getParameters().getBitmapResource();
if (bitmapResourceId == 0) { // null filter fx
return bitmap;
}
if (mFxBitmap == null || mFxBitmapId != bitmapResourceId) {
BitmapFactory.Options o = new BitmapFactory.Options();
o.inScaled = false;
mFxBitmapId = bitmapResourceId;
if (mFxBitmapId != 0) {
mFxBitmap = BitmapFactory.decodeResource(mResources, mFxBitmapId, o);
} else {
Log.w(LOGTAG, "bad resource for filter: " + mName);
}
}
if (mFxBitmap == null) {
return bitmap;
}
int fxw = mFxBitmap.getWidth();
int fxh = mFxBitmap.getHeight();
nativeApplyFilter(bitmap, w, h, mFxBitmap, fxw, fxh);
return bitmap;
}
public void setResources(Resources resources) {
mResources = resources;
}
}
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