Use the new BufferedOutputStream when encoding Bitmaps.

Deprecates the BitmapEncoder constructor that does not take an
ArrayPool.

Author: sjudd

library/src/main/java/com/bumptech/glide/Glide.java

@@ -351,7 +351,7 @@ private static void throwIncorrectGlideModule(Exception e) {
         new ResourceLoader.FileDescriptorFactory(resources);
     ResourceLoader.AssetFileDescriptorFactory resourceLoaderAssetFileDescriptorFactory =
         new ResourceLoader.AssetFileDescriptorFactory(resources);
-    BitmapEncoder bitmapEncoder = new BitmapEncoder();
+    BitmapEncoder bitmapEncoder = new BitmapEncoder(arrayPool);
 
     BitmapBytesTranscoder bitmapBytesTranscoder = new BitmapBytesTranscoder();
     GifDrawableBytesTranscoder gifDrawableBytesTranscoder = new GifDrawableBytesTranscoder();

library/src/main/java/com/bumptech/glide/load/resource/bitmap/BitmapEncoder.java

@@ -2,13 +2,16 @@
 
 import android.graphics.Bitmap;
 import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 import android.support.v4.os.TraceCompat;
 import android.util.Log;
 import com.bumptech.glide.load.EncodeStrategy;
 import com.bumptech.glide.load.Option;
 import com.bumptech.glide.load.Options;
 import com.bumptech.glide.load.ResourceEncoder;
+import com.bumptech.glide.load.data.BufferedOutputStream;
 import com.bumptech.glide.load.engine.Resource;
+import com.bumptech.glide.load.engine.bitmap_recycle.ArrayPool;
 import com.bumptech.glide.util.LogTime;
 import com.bumptech.glide.util.Util;
 import java.io.File;
@@ -49,6 +52,20 @@ public class BitmapEncoder implements ResourceEncoder<Bitmap> {
       "com.bumptech.glide.load.resource.bitmap.BitmapEncoder.CompressionFormat");
 
   private static final String TAG = "BitmapEncoder";
+  @Nullable
+  private final ArrayPool arrayPool;
+
+  public BitmapEncoder(@NonNull ArrayPool arrayPool) {
+    this.arrayPool = arrayPool;
+  }
+
+  /**
+   * @deprecated Use {@link #BitmapEncoder(ArrayPool)} instead.
+   */
+  @Deprecated
+  public BitmapEncoder() {
+    arrayPool = null;
+  }
 
   @Override
   public boolean encode(@NonNull Resource<Bitmap> resource, @NonNull File file,
@@ -65,6 +82,9 @@ public boolean encode(@NonNull Resource<Bitmap> resource, @NonNull File file,
       OutputStream os = null;
       try {
         os = new FileOutputStream(file);
+        if (arrayPool != null) {
+          os = new BufferedOutputStream(os, arrayPool);
+        }
         bitmap.compress(format, quality, os);
         os.close();
         success = true;

library/test/src/test/java/com/bumptech/glide/load/resource/bitmap/BitmapEncoderTest.java

@@ -10,6 +10,8 @@
 import com.bumptech.glide.load.EncodeStrategy;
 import com.bumptech.glide.load.Options;
 import com.bumptech.glide.load.engine.Resource;
+import com.bumptech.glide.load.engine.bitmap_recycle.ArrayPool;
+import com.bumptech.glide.load.engine.bitmap_recycle.LruArrayPool;
 import com.bumptech.glide.util.ByteBufferUtil;
 import java.io.File;
 import java.io.IOException;
@@ -86,13 +88,13 @@ public void testEncoderEncodesPngWithNullFormatAndBitmapWithAlpha() throws IOExc
 
   @Test
   public void testReturnsTrueFromWrite() {
-    BitmapEncoder encoder = new BitmapEncoder();
+    BitmapEncoder encoder = new BitmapEncoder(harness.arrayPool);
     assertTrue(encoder.encode(harness.resource, harness.file, harness.options));
   }
 
   @Test
   public void testEncodeStrategy_alwaysReturnsTransformed() {
-    BitmapEncoder encoder = new BitmapEncoder();
+    BitmapEncoder encoder = new BitmapEncoder(harness.arrayPool);
     assertEquals(EncodeStrategy.TRANSFORMED, encoder.getEncodeStrategy(harness.options));
   }
 
@@ -105,6 +107,7 @@ private static class EncoderHarness {
     final Bitmap bitmap = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);
     final Options options = new Options();
     final File file = new File(RuntimeEnvironment.application.getCacheDir(), "test");
+    final ArrayPool arrayPool = new LruArrayPool();
 
     EncoderHarness() {
       when(resource.get()).thenReturn(bitmap);
@@ -119,7 +122,7 @@ void setFormat(Bitmap.CompressFormat format) {
     }
 
     String encode() throws IOException {
-      BitmapEncoder encoder = new BitmapEncoder();
+      BitmapEncoder encoder = new BitmapEncoder(arrayPool);
       encoder.encode(resource, file, options);
       byte[] data = ByteBufferUtil.toBytes(ByteBufferUtil.fromFile(file));
       return new String(data, "UTF-8");