Say v8.RenderScript goodbye

example/build.gradle

@@ -9,10 +9,6 @@ android {
         targetSdkVersion TARGET_SDK_VERSION as int
         versionCode "git rev-list origin/master --count".execute().text.toInteger()
         versionName VERSION_NAME
-
-        // Warning:Renderscript support mode is not currently supported with renderscript target 21+
-        renderscriptTargetApi RENDERSCRIPT_TARGET_API as int
-        renderscriptSupportModeEnabled true
     }
 
     signingConfigs {

example/src/main/java/jp/wasabeef/example/glide/MainAdapter.java

@@ -152,7 +152,7 @@ public class MainAdapter extends RecyclerView.Adapter<MainAdapter.ViewHolder> {
       case Blur:
         Glide.with(mContext)
             .load(R.drawable.check)
-            .bitmapTransform(new BlurTransformation(mContext, 25, 1))
+            .bitmapTransform(new BlurTransformation(mContext, 25))
             .into(holder.image);
         break;
       case Toon:

gradle.properties

@@ -1,12 +1,10 @@
-VERSION_NAME=1.4.0
+VERSION_NAME=2.0.0
 GROUP=jp.wasabeef
 ARTIFACT_ID=glide-transformations
 
 COMPILE_SDK_VERSION=23
 BUILD_TOOLS_VERSION=23.0.2
 TARGET_SDK_VERSION=23
-# Warning:Renderscript support mode is not currently supported with renderscript target 21+
-RENDERSCRIPT_TARGET_API=20
 MIN_SDK_VERSION=11
 
 POM_DESCRIPTION=which provides simple Tranformations to Glide

transformations/build.gradle

@@ -11,10 +11,6 @@ android {
         versionCode "git rev-list origin/master --count".execute().text.toInteger()
         versionName VERSION_NAME
 
-        // Warning:Renderscript support mode is not currently supported with renderscript target 21+
-        renderscriptTargetApi RENDERSCRIPT_TARGET_API as int
-        renderscriptSupportModeEnabled true
-
         consumerProguardFiles 'proguard-rules.txt'
     }
 }

transformations/proguard-rules.txt

@@ -1,7 +1 @@
--keepclasseswithmembernames class * {
-    native <methods>;
-}
-
--keep class android.support.v8.renderscript.** { *; }
-
 -dontwarn jp.co.cyberagent.android.gpuimage.**

transformations/src/main/java/jp/wasabeef/glide/transformations/BlurTransformation.java

@@ -20,17 +20,15 @@ import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Paint;
-import android.support.v8.renderscript.Allocation;
-import android.support.v8.renderscript.Element;
-import android.support.v8.renderscript.RSRuntimeException;
-import android.support.v8.renderscript.RenderScript;
-import android.support.v8.renderscript.ScriptIntrinsicBlur;
+import android.os.Build;
+import android.renderscript.RSRuntimeException;
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.load.Transformation;
 import com.bumptech.glide.load.engine.Resource;
 import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
 import com.bumptech.glide.load.resource.bitmap.BitmapResource;
 import jp.wasabeef.glide.transformations.internal.FastBlur;
+import jp.wasabeef.glide.transformations.internal.RSBlur;
 
 public class BlurTransformation implements Transformation<Bitmap> {
 
@@ -90,25 +88,14 @@ public class BlurTransformation implements Transformation<Bitmap> {
     paint.setFlags(Paint.FILTER_BITMAP_FLAG);
     canvas.drawBitmap(source, 0, 0, paint);
 
-    RenderScript rs = null;
-    try {
-      rs = RenderScript.create(mContext);
-      Allocation input =
-          Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_NONE,
-              Allocation.USAGE_SCRIPT);
-      Allocation output = Allocation.createTyped(rs, input.getType());
-      ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
-
-      blur.setInput(input);
-      blur.setRadius(mRadius);
-      blur.forEach(output);
-      output.copyTo(bitmap);
-    } catch (RSRuntimeException e) {
-      bitmap = FastBlur.doBlur(bitmap, mRadius, true);
-    } finally {
-      if (rs != null) {
-        rs.destroy();
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+      try {
+        bitmap = RSBlur.blur(mContext, bitmap, mRadius);
+      } catch (RSRuntimeException e) {
+        bitmap = FastBlur.blur(bitmap, mRadius, true);
       }
+    } else {
+      bitmap = FastBlur.blur(bitmap, mRadius, true);
     }
 
     return BitmapResource.obtain(bitmap, mBitmapPool);

transformations/src/main/java/jp/wasabeef/glide/transformations/internal/FastBlur.java

@@ -20,7 +20,7 @@ import android.graphics.Bitmap;
 
 public class FastBlur {
 
-  public static Bitmap doBlur(Bitmap sentBitmap, int radius, boolean canReuseInBitmap) {
+  public static Bitmap blur(Bitmap sentBitmap, int radius, boolean canReuseInBitmap) {
 
     // Stack Blur v1.0 from
     // http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html

transformations/src/main/java/jp/wasabeef/glide/transformations/internal/RSBlur.java

@@ -0,0 +1,54 @@
+package jp.wasabeef.glide.transformations.internal;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.os.Build;
+import android.renderscript.Allocation;
+import android.renderscript.Element;
+import android.renderscript.RSRuntimeException;
+import android.renderscript.RenderScript;
+import android.renderscript.ScriptIntrinsicBlur;
+
+/**
+ * Copyright (C) 2015 Wasabeef
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+public class RSBlur {
+
+  @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
+  public static Bitmap blur(Context context, Bitmap bitmap, int radius) throws RSRuntimeException {
+    RenderScript rs = null;
+    try {
+      rs = RenderScript.create(context);
+      Allocation input =
+          Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_NONE,
+              Allocation.USAGE_SCRIPT);
+      Allocation output = Allocation.createTyped(rs, input.getType());
+      ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
+
+      blur.setInput(input);
+      blur.setRadius(radius);
+      blur.forEach(output);
+      output.copyTo(bitmap);
+    } finally {
+      if (rs != null) {
+        rs.destroy();
+      }
+    }
+
+    return bitmap;
+  }
+}