using RapidDecoder, fixed #393

twidere/build.gradle

@@ -62,6 +62,7 @@ android {
 repositories {
     maven { url 'https://s3.amazonaws.com/repo.commonsware.com' }
     maven { url 'https://maven.fabric.io/public' }
+    maven { url 'https://github.com/suckgamony/RapidDecoder/raw/master/repository' }
     flatDir { dirs "$projectDir/lib" }
 }
 
@@ -108,10 +109,14 @@ dependencies {
     compile 'com.lnikkila:extendedtouchview:0.1.0'
     compile 'com.google.dagger:dagger:2.0.2'
     compile 'org.attoparser:attoparser:1.4.0.RELEASE'
-    compile 'com.github.mariotaku.MediaViewerLibrary:base:0.9.10'
-    compile 'com.github.mariotaku.MediaViewerLibrary:subsample-image-view:0.9.10'
+    compile 'com.github.mariotaku.MediaViewerLibrary:base:0.9.11'
+    compile 'com.github.mariotaku.MediaViewerLibrary:subsample-image-view:0.9.11'
     compile 'com.github.mariotaku.SQLiteQB:library:0.9.5'
     compile 'com.github.mariotaku.ObjectCursor:core:0.9.5'
+    compile 'rapid.decoder:library:0.3.0'
+    compile 'rapid.decoder:jpeg-decoder:0.3.0'
+    compile 'rapid.decoder:png-decoder:0.3.0'
+
     compile project(':twidere.component.common')
     compile project(':twidere.component.nyan')
 

twidere/src/main/java/org/mariotaku/twidere/activity/support/MediaViewerActivity.java

@@ -65,6 +65,7 @@ import android.widget.TextView;
 import android.widget.Toast;
 
 import com.commonsware.cwac.layouts.AspectLockedFrameLayout;
+import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView;
 import com.pnikosis.materialishprogress.ProgressWheel;
 import com.sprylab.android.widget.TextureVideoView;
 
@@ -92,6 +93,8 @@ import org.mariotaku.twidere.util.PermissionUtils;
 import org.mariotaku.twidere.util.ThemeUtils;
 import org.mariotaku.twidere.util.Utils;
 import org.mariotaku.twidere.util.dagger.GeneralComponentHelper;
+import org.mariotaku.twidere.util.imageviewer.RapidImageDecoder;
+import org.mariotaku.twidere.util.imageviewer.RapidImageRegionDecoder;
 import org.mariotaku.twidere.util.media.MediaExtra;
 
 import java.io.File;
@@ -854,6 +857,12 @@ public final class MediaViewerActivity extends AbsMediaViewerActivity implements
                 activity.supportInvalidateOptionsMenu();
             }
         }
+
+        @Override
+        protected void setupImageView(SubsamplingScaleImageView imageView) {
+            imageView.setRegionDecoderClass(RapidImageRegionDecoder.class);
+            imageView.setBitmapDecoderClass(RapidImageDecoder.class);
+        }
     }
 
     public static class VideoPageFragment extends CacheDownloadMediaViewerFragment

twidere/src/main/java/org/mariotaku/twidere/util/imageviewer/RapidImageDecoder.java

@@ -0,0 +1,26 @@
+package org.mariotaku.twidere.util.imageviewer;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.net.Uri;
+
+import com.davemorrissey.labs.subscaleview.decoder.ImageDecoder;
+
+import rapid.decoder.BitmapDecoder;
+
+/**
+ * A very simple implementation of {@link com.davemorrissey.labs.subscaleview.decoder.ImageRegionDecoder}
+ * using the RapidDecoder library (https://github.com/suckgamony/RapidDecoder). For PNGs, this can
+ * give more reliable decoding and better performance. For JPGs, it is slower and can run out of
+ * memory with large images, but has better support for grayscale and CMYK images.
+ *
+ * This is an incomplete and untested implementation provided as an example only.
+ */
+public class RapidImageDecoder implements ImageDecoder {
+
+    @Override
+    public Bitmap decode(Context context, Uri uri) throws Exception {
+        return BitmapDecoder.from(context, uri).useBuiltInDecoder(true).config(Bitmap.Config.RGB_565).decode();
+    }
+
+}

twidere/src/main/java/org/mariotaku/twidere/util/imageviewer/RapidImageRegionDecoder.java

@@ -0,0 +1,57 @@
+package org.mariotaku.twidere.util.imageviewer;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.net.Uri;
+
+import com.davemorrissey.labs.subscaleview.decoder.ImageRegionDecoder;
+
+import rapid.decoder.BitmapDecoder;
+
+/**
+ * A very simple implementation of {@link com.davemorrissey.labs.subscaleview.decoder.ImageRegionDecoder}
+ * using the RapidDecoder library (https://github.com/suckgamony/RapidDecoder). For PNGs, this can
+ * give more reliable decoding and better performance. For JPGs, it is slower and can run out of
+ * memory with large images, but has better support for grayscale and CMYK images.
+ * <p/>
+ * This is an incomplete and untested implementation provided as an example only.
+ */
+public class RapidImageRegionDecoder implements ImageRegionDecoder {
+
+    private BitmapDecoder decoder;
+
+    @Override
+    public Point init(Context context, Uri uri) throws Exception {
+        decoder = BitmapDecoder.from(context, uri);
+        decoder.useBuiltInDecoder(true);
+        return new Point(decoder.sourceWidth(), decoder.sourceHeight());
+    }
+
+    @Override
+    public synchronized Bitmap decodeRegion(Rect sRect, int sampleSize) {
+        try {
+            return decoder.reset().region(sRect).scale(sRect.width() / sampleSize, sRect.height() / sampleSize).decode();
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+    @Override
+    public boolean isReady() {
+        return decoder != null;
+    }
+
+    @Override
+    public void recycle() {
+        BitmapDecoder.destroyMemoryCache();
+        BitmapDecoder.destroyDiskCache();
+        try {
+            decoder.reset();
+        } catch (UnsupportedOperationException ignore) {
+
+        }
+        decoder = null;
+    }
+}