Added another image decoder. It should be faster than Rapid and more reliable than Skia.

app/build.gradle

@@ -93,7 +93,7 @@ android {
 dependencies {
 
     // Modified dependencies
-    compile 'com.github.inorichi:subsampling-scale-image-view:a2a14ef'
+    compile 'com.github.inorichi:subsampling-scale-image-view:96d2c7f'
     compile 'com.github.inorichi:ReactiveNetwork:69092ed'
 
     // Android support library
@@ -108,7 +108,7 @@ dependencies {
 
     compile 'com.android.support:multidex:1.0.1'
 
-    compile 'com.google.android.gms:play-services-gcm:9.6.1'
+    compile 'com.google.android.gms:play-services-gcm:9.8.0'
 
     // ReactiveX
     compile 'io.reactivex:rxandroid:1.2.1'

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/base/BaseReader.kt

@@ -24,6 +24,11 @@ abstract class BaseReader : BaseFragment() {
          * Skia decoder.
          */
         const val SKIA_DECODER = 1
+
+        /**
+         * Image decoder.
+         */
+        const val IMAGE_DECODER = 2
     }
 
     /**
@@ -201,12 +206,16 @@ abstract class BaseReader : BaseFragment() {
     fun setDecoderClass(value: Int) {
         when (value) {
             RAPID_DECODER -> {
-                regionDecoderClass = RapidImageRegionDecoder::class.java
                 bitmapDecoderClass = RapidImageDecoder::class.java
+                regionDecoderClass = RapidImageRegionDecoder::class.java
             }
             SKIA_DECODER -> {
-                regionDecoderClass = SkiaImageRegionDecoder::class.java
                 bitmapDecoderClass = SkiaImageDecoder::class.java
+                regionDecoderClass = SkiaImageRegionDecoder::class.java
+            }
+            IMAGE_DECODER -> {
+                bitmapDecoderClass = IImageDecoder::class.java
+                regionDecoderClass = IImageRegionDecoder::class.java
             }
         }
     }

app/src/main/res/values-es/strings.xml

@@ -114,8 +114,6 @@
     <string name="vertical_viewer">Vertical</string>
     <string name="webtoon_viewer">Webtoon</string>
     <string name="pref_image_decoder">Decodificador de imagen</string>
-    <string name="rapid_decoder">Rapid</string>
-    <string name="skia_decoder">Skia</string>
     <string name="pref_image_scale_type">Tipo de escalado</string>
     <string name="scale_type_fit_screen">Ajustar a la pantalla</string>
     <string name="scale_type_stretch">Estirado</string>

app/src/main/res/values-pt/strings.xml

@@ -119,8 +119,6 @@
     <string name="vertical_viewer">Vertical</string>
     <string name="webtoon_viewer">Webtoon</string>
     <string name="pref_image_decoder">Descodificador de imagem</string>
-    <string name="rapid_decoder">Rapid</string>
-    <string name="skia_decoder">Skia</string>
     <string name="pref_image_scale_type">Tipo de escala</string>
     <string name="scale_type_fit_screen">Ajustar ao ecrã</string>
     <string name="scale_type_stretch">Esticar</string>

app/src/main/res/values/arrays.xml

@@ -67,13 +67,15 @@
     </string-array>
 
     <string-array name="image_decoders">
-        <item>@string/rapid_decoder</item>
+        <item>Rapid</item>
-        <item>@string/skia_decoder</item>
+        <item>Skia</item>
+        <item>Image</item>
     </string-array>
 
     <string-array name="image_decoders_values">
         <item>0</item>
         <item>1</item>
+        <item>2</item>
     </string-array>
 
     <string-array name="image_scale_type">

app/src/main/res/values/strings.xml

@@ -123,8 +123,6 @@
     <string name="vertical_viewer">Vertical</string>
     <string name="webtoon_viewer">Webtoon</string>
     <string name="pref_image_decoder">Image decoder</string>
-    <string name="rapid_decoder">Rapid</string>
-    <string name="skia_decoder">Skia</string>
     <string name="pref_image_scale_type">Scale type</string>
     <string name="scale_type_fit_screen">Fit screen</string>
     <string name="scale_type_stretch">Stretch</string>