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package com.bumptech.glide.load.resource.bitmap;
import android.content.Context;
import android.graphics.Bitmap;
import com.bumptech.glide.Glide;
import com.bumptech.glide.load.DecodeFormat;
import com.bumptech.glide.load.ResourceDecoder;
import com.bumptech.glide.load.engine.Resource;
import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import java.io.InputStream;
/**
* An {@link com.bumptech.glide.load.ResourceDecoder} that uses an
* {@link com.bumptech.glide.load.resource.bitmap.Downsampler} to decode an {@link android.graphics.Bitmap} from an
* {@link java.io.InputStream}.
*/
public class StreamBitmapDecoder implements ResourceDecoder<InputStream, Bitmap> {
private static final String ID = "StreamBitmapDecoder.com.bumptech.glide.load.resource.bitmap";
private final Downsampler downsampler;
private BitmapPool bitmapPool;
private DecodeFormat decodeFormat;
private String id;
public StreamBitmapDecoder(Context context) {
this(Glide.get(context).getBitmapPool());
}
public StreamBitmapDecoder(BitmapPool bitmapPool) {
this(bitmapPool, DecodeFormat.DEFAULT);
}
public StreamBitmapDecoder(Context context, DecodeFormat decodeFormat) {
this(Glide.get(context).getBitmapPool(), decodeFormat);
}
public StreamBitmapDecoder(BitmapPool bitmapPool, DecodeFormat decodeFormat) {
this(Downsampler.AT_LEAST, bitmapPool, decodeFormat);
}
public StreamBitmapDecoder(Downsampler downsampler, BitmapPool bitmapPool, DecodeFormat decodeFormat) {
this.downsampler = downsampler;
this.bitmapPool = bitmapPool;
this.decodeFormat = decodeFormat;
}
@Override
public Resource<Bitmap> decode(InputStream source, int width, int height) {
Bitmap bitmap = downsampler.decode(source, bitmapPool, width, height, decodeFormat);
return BitmapResource.obtain(bitmap, bitmapPool);
}
@Override
public String getId() {
if (id == null) {
id = new StringBuilder()
.append(ID)
.append(downsampler.getId())
.append(decodeFormat.name())
.toString();
}
return id;
}
}
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