| /* |
| * 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.app.Activity; |
| import android.graphics.Bitmap; |
| import android.graphics.Matrix; |
| import android.support.v8.renderscript.Allocation; |
| import android.widget.Toast; |
| |
| import com.android.gallery3d.filtershow.imageshow.GeometryMetadata; |
| import com.android.gallery3d.filtershow.presets.FilterEnvironment; |
| import com.android.gallery3d.filtershow.presets.ImagePreset; |
| |
| public abstract class ImageFilter implements Cloneable { |
| private FilterEnvironment mEnvironment = null; |
| |
| protected String mName = "Original"; |
| private final String LOGTAG = "ImageFilter"; |
| protected static final boolean SIMPLE_ICONS = true; |
| // TODO: Temporary, for dogfood note memory issues with toasts for better |
| // feedback. Remove this when filters actually work in low memory |
| // situations. |
| private static Activity sActivity = null; |
| |
| public static void setActivityForMemoryToasts(Activity activity) { |
| sActivity = activity; |
| } |
| |
| public static void resetStatics() { |
| sActivity = null; |
| } |
| |
| public void freeResources() {} |
| |
| public void displayLowMemoryToast() { |
| if (sActivity != null) { |
| sActivity.runOnUiThread(new Runnable() { |
| public void run() { |
| Toast.makeText(sActivity, "Memory too low for filter " + getName() + |
| ", please file a bug report", Toast.LENGTH_SHORT).show(); |
| } |
| }); |
| } |
| } |
| |
| public void setName(String name) { |
| mName = name; |
| } |
| |
| public String getName() { |
| return mName; |
| } |
| |
| public boolean supportsAllocationInput() { return false; } |
| |
| public void apply(Allocation in, Allocation out) { |
| } |
| |
| public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) { |
| // do nothing here, subclasses will implement filtering here |
| return bitmap; |
| } |
| |
| public abstract void useRepresentation(FilterRepresentation representation); |
| |
| native protected void nativeApplyGradientFilter(Bitmap bitmap, int w, int h, |
| int[] redGradient, int[] greenGradient, int[] blueGradient); |
| |
| public FilterRepresentation getDefaultRepresentation() { |
| return null; |
| } |
| |
| protected Matrix getOriginalToScreenMatrix(int w, int h) { |
| ImagePreset preset = getEnvironment().getImagePreset(); |
| GeometryMetadata geo = getEnvironment().getImagePreset().mGeoData; |
| Matrix originalToScreen = geo.getOriginalToScreen(true, |
| preset.getImageLoader().getOriginalBounds().width(), |
| preset.getImageLoader().getOriginalBounds().height(), |
| w, h); |
| return originalToScreen; |
| } |
| |
| public void setEnvironment(FilterEnvironment environment) { |
| mEnvironment = environment; |
| } |
| |
| public FilterEnvironment getEnvironment() { |
| return mEnvironment; |
| } |
| } |