1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.wallpaper.asset; 17 18 import android.graphics.drawable.Drawable; 19 20 import com.bumptech.glide.load.Options; 21 import com.bumptech.glide.load.ResourceDecoder; 22 import com.bumptech.glide.load.engine.Resource; 23 import com.bumptech.glide.load.resource.drawable.DrawableResource; 24 25 import java.io.IOException; 26 27 import androidx.annotation.Nullable; 28 29 /** 30 * Identity {@link ResourceDecoder} implementation that simply passes through a Drawable. 31 * <p> 32 * Register this class in a {@link com.bumptech.glide.module.GlideModule} on Glide's 33 * {@link com.bumptech.glide.Registry} in order to support loading {@link Drawable} objects for 34 * {@link com.bumptech.glide.load.model.ModelLoader} implementations that directly load 35 * {@link Drawable} data as an output type. 36 */ 37 public class DrawableResourceDecoder implements ResourceDecoder<Drawable, Drawable> { 38 39 @Override handles(Drawable source, Options options)40 public boolean handles(Drawable source, Options options) throws IOException { 41 return true; 42 } 43 44 @Nullable 45 @Override decode(Drawable source, int width, int height, Options options)46 public Resource<Drawable> decode(Drawable source, int width, int height, Options options) 47 throws IOException { 48 return new DrawableResource<Drawable>(source) { 49 @Override 50 public Class<Drawable> getResourceClass() { 51 return Drawable.class; 52 } 53 54 @Override 55 public int getSize() { 56 // Return size assuming that each pixel takes 4 bytes of memory (Bitmap.Config.ARGB_8888). 57 return get().getIntrinsicWidth() * get().getIntrinsicHeight() * 4; 58 } 59 60 @Override 61 public void recycle() { 62 // no-op 63 } 64 }; 65 } 66 } 67