Release 4.3.0 (#184 )

* refactor: clean code * update: gpuimage * update: min sdk to 21 * refactor: remove support rs * update: gradle plugin * style: fix xml format * update: update gradle properties * release 4.2.1 * update: samples * update: sample * update:changelog * remove comments * change release version
Update build.gradle
2025-10-04 09:53:21 +08:00 · 2020-09-27 07:37:31 +09:00 · 2020-09-24 18:49:48 +09:00 · 2020-09-15 03:51:31 +09:00 · 2020-09-15 02:45:35 +09:00 · 2020-07-28 23:24:40 +09:00
65 changed files with 2108 additions and 1357 deletions
--- a/.editorconfig
+++ b/.editorconfig
@@ -0,0 +1,7 @@
+[*]
+indent_size = 2
+max_line_length = off
+insert_final_newline = true
+
+[*.{kt, kts}]
+kotlin_imports_layout = ascii
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: wasabeef # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -0,0 +1,28 @@
+# Future Task
+
+## What is the motivation?
+
+## What kind of solution can be considered?
+
+## What do you want to discuss?
+
+*Please add relevant labels*
+
+-----
+
+# Bug Reporting
+
+## Steps to Reproduce
+
+## Actual Results (include screenshots)
+
+## Expected Results (include screenshots)
+
+## URL
+
+## OS details
+
+- Device:
+- OS:
+
+*Please add relevant labels*
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,6 @@
+## What does this change?
+
+## What is the value of this and can you measure success?
+
+## Screenshots
+
--- a/.gitignore
+++ b/.gitignore
@@ -1,19 +1,23 @@
-.DS_Store
-Thumbs.db
+# Mac OS
+.DS_store

-# gradle files
-.gradle
+# Built application files
+*.apk
+*.ap_

-# Intellij project files
-.idea
-*.iml
+# Files for the ART/Dalvik VM
+*.dex

-# generated files
+# Java class files
+*.class
+
+# Generated files
 bin/
 gen/
-obj/
-apk/
-target/
+out/
+
+# Gradle files
+.gradle/
 build/

 # Local configuration file (sdk path, etc)
@@ -21,3 +25,41 @@ local.properties

 # Proguard folder generated by Eclipse
 proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ
+*.iml
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/assetWizardSettings.xml
+.idea/dictionaries
+.idea/libraries
+.idea/caches
+.idea/misc.xml
+.idea/modules.xml
+.idea/navEditor.xml
+.idea/markdown*
+.idea/jarRepositories.xml
+.idea/inspectionProfiles/Project_Default.xml
+.idea/compiler.xml
+projectFilesBackup/
+
+# Keystore files
+# Uncomment the following line if you do not want to check your keystore files in.
+#*.jks
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Google Services (e.g. APIs or Firebase)
+google-services.json
+
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -0,0 +1,116 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <codeStyleSettings language="XML">
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+      <arrangement>
+        <rules>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:android</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:id</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>style</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>ANDROID_ATTRIBUTE_ORDER</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>.*</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+        </rules>
+      </arrangement>
+    </codeStyleSettings>
+  </code_scheme>
+</component>
--- a/.idea/codeStyles/codeStyleConfig.xml
+++ b/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>
--- a/.idea/encodings.xml
+++ b/.idea/encodings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with NO BOM" />
+</project>
--- a/.idea/runConfigurations.xml
+++ b/.idea/runConfigurations.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,143 @@
 Change Log
 ==========

+Version 4.3.0 *(2020-09-27)*
+----------------------------
+
+Feature
+- Remove support v8 renderscript (Please use BlurTransformation)
+
+Update
+- minSdkVersion -> 21
+- GPUImage -> 2.1.0
+- Cleanup codes
+
+Version 4.2.0 *(2020-09-15)*
+----------------------------
+
+Update:
+- Compile & Target SDK Version 28 -> 30
+- GPUImage 2.0.3 -> 2.0.4
+- Glide 4.9.0 -> 4.11.0
+
+Bugfix:
+- RoundedCornersTransformation with DIAGONAL_FROM_TOP_LEFT does not work [#178](https://github.com/wasabeef/glide-transformations/pull/178)
+
+Version 4.1.0 *(2019-08-15)*
+----------------------------
+
+Add:
+- Support to CropCircle with Border [#136](https://github.com/wasabeef/glide-transformations/pull/136)
+
+Update:
+- Glide to 4.9.0
+- Android Gradle plugin to 3.6.0-alpha05
+- Kotlin to 1.3.41	
+
+Bug Fix:
+- Fix diffrent density [#147](https://github.com/wasabeef/glide-transformations/pull/147)
+
+
+Version 4.0.1 *(2018-11-20)*
+----------------------------
+
+Add:
+- consumerProguardFiles setting
+
+Version 4.0.0 *(2018-11-16)*
+----------------------------
+
+Update:
+- Migrate to AndroidX
+- Remove novoda-bintray-plugin
+
+Version 3.3.0 *(2018-04-23)*
+----------------------------
+
+Update:  
+- Support Library 27.1.0 -> 27.1.1  
+- Glide 4.6.1 -> 4.7.1  
+
+Feature:  
+- SupportRSBlurTransformation [#125](https://github.com/wasabeef/glide-transformations/pull/125)   
+  it's using RenderScript support mode but can you choose to use or not.   
+  Thank you [@fougere-mike](https://github.com/fougere-mike)  
+
+Bug Fix: 
+- Set detail of Cache key [#119](https://github.com/wasabeef/glide-transformations/issues/119)     
+
+Version 3.2.0 *(2018-04-10)*
+----------------------------
+
+Update:  
+- Support Library 27.0.2 -> 27.1.0  
+
+Bug Fix:  
+- We quit use the RenderScript [#120](https://github.com/wasabeef/glide-transformations/issues/120)     
+
+Version 3.1.1 *(2018-02-13)*
+----------------------------
+
+Update:  
+- Glide 4.5.0 -> 4.6.1  
+
+Bug Fix:  
+- Fix settings fot proguard.
+
+Version 3.1.0 *(2018-01-26)*
+----------------------------
+
+Update:  
+- Compile & Target SDK Version 25 -> 27  
+- Build Tools 26.0.1 -> 27.0.3  
+- Support Library 25.3.1 -> 27.0.2  
+- Glide 4.0.0 -> 4.5.0  
+
+Bug Fix:  
+- [Implement equals() and hashCode() methods #105](https://github.com/wasabeef/glide-transformations/pull/105)  
+- Use RenderScript#releaseAllContexts  
+
+Version 3.0.1 *(2017-09-08)*
+----------------------------
+
+Bug Fix:
+- [Deleted a setting for DexGuard #86](https://github.com/wasabeef/glide-transformations/issues/86)
+
+Version 3.0.0 *(2017-09-06)*
+----------------------------
+
+Update:
+- Build Tools 25.0.2 -> 26.0.1
+- Min SDK Version 11 -> 14
+- Glide 3.7.0 -> 4.0.0
+
+Feature: 
+- Supported Glide 4.0.0
+
+Version 2.0.2 *(2017-03-17)*
+----------------------------
+
+Update:
+- Compile & Target SDK Version 23 -> 25
+- Build Tools 23.0.2 -> 25.0.2
+- Support Library 23.2.1 -> 25.3.0
+- GPUImage for Android 1.3.0 -> 1.4.1
+
+Bug Fix:
+- [Additional resource cleanup in RSBlur #45](https://github.com/wasabeef/glide-transformations/pull/45)
+ 
+Version 2.0.1 *(2016-04-21)*
+----------------------------
+
+Fix:
+ [#35](https://github.com/wasabeef/glide-transformations/issues/35)
+ RSInvalidStateException
+
+Version 2.0.0 *(2016-03-02)*
+----------------------------
+
+Say v8.RenderScript goodbye
+
 Version 1.4.0 *(2016-02-28)*
 ----------------------------

--- a/README.md
+++ b/README.md
@@ -28,14 +28,13 @@ Please feel free to use this.
 #### Gradle
 ```groovy
 repositories {
-    jcenter()
-    mavenCentral()  // GPUImage for Android
+  jcenter()
 }

 dependencies {
-    compile 'jp.wasabeef:glide-transformations:1.4.0'
-    // If you want to use the GPU Filters
-    compile 'jp.co.cyberagent.android.gpuimage:gpuimage-library:1.3.0'
+  implementation 'jp.wasabeef:glide-transformations:4.x.x'
+  // If you want to use the GPU Filters
+  implementation 'jp.co.cyberagent.android:gpuimage:2.x.x'
 }
 ```

@@ -43,59 +42,72 @@ dependencies {

 Set Glide Transform.

-```java
+```kotlin
 Glide.with(this).load(R.drawable.demo)
-        .bitmapTransform(new BlurTransformation(context))
-        .into((ImageView) findViewById(R.id.image));
+  .apply(RequestOptions.bitmapTransform(BlurTransformation(25, 3)))
+  .into(imageView)
 ```

 ## Advanced Step 3

 You can set a multiple transformations.

-```java
+```kotlin
+val multi = MultiTransformation<Bitmap>(
+  BlurTransformation(25),
+  RoundedCornersTransformation(128, 0, CornerType.BOTTOM))))
 Glide.with(this).load(R.drawable.demo)
-  .bitmapTransform(new BlurTransformation(context, 25, 2), new CropCircleTransformation(context))
-  .into((ImageView) findViewById(R.id.image));
+  .apply(RequestOptions.bitmapTransform(multi))
+  .into(imageView))
 ```

-## Step 4
+# Step 4

-If you are using `BlurTransformation`.
+If you are using `SupportRSBlurTransformation`.

 ```groovy
 android {
-    ...
-    defaultConfig {
-        // Warning:Renderscript support mode is not currently supported with renderscript target 21+
-        renderscriptTargetApi 20
-        renderscriptSupportModeEnabled true
-    }
+  //...
+  defaultConfig {
+    //...
+    renderscriptTargetApi YOUR_TARGET_SDK_VERSION as int
+    renderscriptSupportModeEnabled true
+  }
 }
 ```

 ## Transformations

 ### Crop
-`CropTransformation`, `CropCircleTransformation`, `CropSquareTransformation`,
-`RoundedCornersTransformation`
+- `CropTransformation`
+- `CropCircleTransformation`
+- `CropCircleWithBorderTransformation`
+- `CropSquareTransformation`
+- `RoundedCornersTransformation`

 ### Color
-`ColorFilterTransformation`, `GrayscaleTransformation`
+- `ColorFilterTransformation`
+- `GrayscaleTransformation`

 ### Blur
-`BlurTransformation`
+- `BlurTransformation`

 ### Mask
-`MaskTransformation`
+- `MaskTransformation`

 ### GPU Filter (use [GPUImage](https://github.com/CyberAgent/android-gpuimage))
 **Will require add dependencies for GPUImage.**  

-`ToonFilterTransformation`, `SepiaFilterTransformation`, `ContrastFilterTransformation`  
-`InvertFilterTransformation`, `PixelationFilterTransformation`, `SketchFilterTransformation`  
-`SwirlFilterTransformation`, `BrightnessFilterTransformation`, `KuwaharaFilterTransformation`
-`VignetteFilterTransformation`
+- `ToonFilterTransformation`
+- `SepiaFilterTransformation`
+- `ContrastFilterTransformation`
+- `InvertFilterTransformation`
+- `PixelationFilterTransformation`
+- `SketchFilterTransformation`
+- `SwirlFilterTransformation`
+- `BrightnessFilterTransformation`
+- `KuwaharaFilterTransformation`
+- `VignetteFilterTransformation`


 Applications using Glide Transformations
@@ -106,6 +118,8 @@ Please [ping](mailto:dadadada.chop@gmail.com) me or send a pull request if you w
 Icon | Application
 ------------ | -------------
 <img src="https://lh6.ggpht.com/6zKH_uQY1bxCwXL4DLo_uoFEOXdShi3BgmN6XRHlaJ-oA1svmq6y1PZkmO50nWQn2Lg=w300-rw" width="48" height="48" /> | [Ameba Ownd](https://play.google.com/store/apps/details?id=jp.co.cyberagent.madrid)
+<img src="https://lh3.googleusercontent.com/ZOrekp-ho-ecWG1TyvuOs0LoB5M4QYWCCLS5lFbAHhp_SklSd06544ENG3uC97zGWes=w300-rw" width="48" height="48" /> | [AbemaTV](https://play.google.com/store/apps/details?id=tv.abema)
+<img src="https://lh3.googleusercontent.com/eikxMAKKMU2O-rV-oUg04dGp-O4Aoje91kffDlnCB_3DCIPDzzADxdBOdPCW18Lmqw=w300-rw" width="48" height="48" /> | [TV Time](https://play.google.com/store/apps/details?id=com.tozelabs.tvshowtime)

 Developed By
 -------
@@ -121,10 +135,11 @@ Contributions

 Any contributions are welcome!

-Contributers
+Contributors
 -------

 * [start141](https://github.com/start141)
+* [squeeish](https://github.com/squeeish)

 Thanks
 -------
@@ -134,7 +149,7 @@ Thanks
 License
 -------

-    Copyright 2015 Wasabeef
+    Copyright (C) 2020 Wasabeef

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
--- a/art/demo.gif
+++ b/art/demo.gif
--- a/build.gradle
+++ b/build.gradle
@@ -1,21 +1,27 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.

 buildscript {
-    repositories {
-        jcenter()
-    }
-    dependencies {
-        classpath 'com.android.tools.build:gradle:2.0.0-beta6'
-        classpath 'com.novoda:bintray-release:0.3.4'
+  ext {
+    kotlin_version = '1.3.72'
+    glide_version = '4.11.0'
+    gpuimage_version = '2.1.0'
+  }

-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
-    }
+  repositories {
+    google()
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:4.2.0-alpha12'
+    classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.5'
+    classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
+    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+  }
 }

 allprojects {
-    repositories {
-        jcenter()
-        mavenCentral()
-    }
+  repositories {
+    google()
+    jcenter()
+  }
 }
--- a/example/build.gradle
+++ b/example/build.gradle
@@ -1,62 +1,41 @@
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'

 android {
-    compileSdkVersion COMPILE_SDK_VERSION as int
-    buildToolsVersion BUILD_TOOLS_VERSION
+  compileSdkVersion COMPILE_SDK_VERSION as int

-    defaultConfig {
-        minSdkVersion MIN_SDK_VERSION as int
-        targetSdkVersion TARGET_SDK_VERSION as int
-        versionCode "git rev-list origin/master --count".execute().text.toInteger()
-        versionName VERSION_NAME
+  defaultConfig {
+    minSdkVersion MIN_SDK_VERSION as int
+    targetSdkVersion TARGET_SDK_VERSION as int
+    versionCode VERSION_CODE as int
+    versionName VERSION_NAME
+  }

-        // Warning:Renderscript support mode is not currently supported with renderscript target 21+
-        renderscriptTargetApi RENDERSCRIPT_TARGET_API as int
-        renderscriptSupportModeEnabled true
+  // SigningConfigs
+  apply from: '../signingConfigs/debug.gradle', to: android
+
+  buildTypes {
+    debug {
+      debuggable true
+      signingConfig signingConfigs.debug
    }
-
-    signingConfigs {
-        release {
-            storeFile file(keyStoreProperty)
-            keyAlias keyAliasProperty
-            storePassword keyStorePasswordProperty
-            keyPassword keyAliasPasswordProperty
-        }
+    release {
+      debuggable false
+      zipAlignEnabled true
+      minifyEnabled true
+      shrinkResources true
    }
-
-    buildTypes {
-        debug {
-            debuggable true
-            zipAlignEnabled true
-        }
-        release {
-            debuggable false
-            zipAlignEnabled true
-            signingConfig signingConfigs.release
-        }
-    }
-}
-
-def getKeyStoreProperty() {
-    return hasProperty('WASABEEF_KEYSTORE') ? WASABEEF_KEYSTORE : "debug.keystore"
-}
-
-def getKeyAliasProperty() {
-    return hasProperty('WASABEEF_KEYALIAS') ? WASABEEF_KEYALIAS : "android"
-}
-
-def getKeyStorePasswordProperty() {
-    return hasProperty('WASABEEF_KEYSTOREPASSWORD') ? WASABEEF_KEYSTOREPASSWORD : "androiddebugkey"
-}
-
-def getKeyAliasPasswordProperty() {
-    return hasProperty('WASABEEF_KEYALIASPASSWORD') ? WASABEEF_KEYALIASPASSWORD : "android"
+  }
 }

 dependencies {
-    compile project(':transformations')
-    compile "com.github.bumptech.glide:glide:${GLIDE_VERSION}"
-    compile "jp.co.cyberagent.android.gpuimage:gpuimage-library:${GPUIMAGE_VERSION}"
-    compile "com.android.support:appcompat-v7:${SUPPORT_PACKAGE_VERSION}"
-    compile "com.android.support:recyclerview-v7:${SUPPORT_PACKAGE_VERSION}"
+  implementation project(':transformations')
+  implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+  implementation "com.github.bumptech.glide:glide:$glide_version"
+  kapt "com.github.bumptech.glide:compiler:$glide_version"
+  implementation "jp.co.cyberagent.android:gpuimage:$gpuimage_version"
+  implementation "androidx.appcompat:appcompat:1.3.0-alpha02"
+  implementation "androidx.recyclerview:recyclerview:1.2.0-alpha05"
+  implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
 }
--- a/example/proguard-rules.pro
+++ b/example/proguard-rules.pro
--- a/example/src/main/AndroidManifest.xml
+++ b/example/src/main/AndroidManifest.xml
@@ -1,22 +1,21 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-  package="jp.wasabeef.example.glide"
-  >
+  xmlns:tools="http://schemas.android.com/tools"
+  package="jp.wasabeef.example.glide">

  <application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme"
-    >
+    tools:ignore="GoogleAppIndexingWarning">
    <activity
      android:name=".MainActivity"
-      android:label="@string/app_name"
-      >
+      android:label="@string/app_name">
      <intent-filter>
-        <action android:name="android.intent.action.MAIN"/>
+        <action android:name="android.intent.action.MAIN" />

-        <category android:name="android.intent.category.LAUNCHER"/>
+        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
    </activity>
  </application>
--- a/example/src/main/java/jp/wasabeef/example/glide/Utils.java
+++ b/example/src/main/java/jp/wasabeef/example/glide/Utils.java
@@ -1,7 +1,7 @@
-package jp.wasabeef.example.glide;
+package jp.wasabeef.example.glide

 /**
- * Copyright (C) 2015 Wasabeef
+ * Copyright (C) 2020 Wasabeef
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -16,12 +16,8 @@ package jp.wasabeef.example.glide;
 * limitations under the License.
 */

-import android.content.Context;
+import android.content.res.Resources

-public class Utils {
+val Float.px: Float get() = (this * Resources.getSystem().displayMetrics.density)

-  public static int dip2px(Context context, float dp) {
-    float scale = context.getResources().getDisplayMetrics().density;
-    return (int) (dp * scale + 0.5f);
-  }
-}
+val Int.px: Int get() = ((this * Resources.getSystem().displayMetrics.density).toInt())
--- a/example/src/main/java/jp/wasabeef/example/glide/MainActivity.java
+++ b/example/src/main/java/jp/wasabeef/example/glide/MainActivity.java
@@ -1,45 +0,0 @@
-package jp.wasabeef.example.glide;
-
-import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.GridLayoutManager;
-import android.support.v7.widget.RecyclerView;
-import java.util.ArrayList;
-import java.util.List;
-import jp.wasabeef.example.glide.MainAdapter.Type;
-
-public class MainActivity extends AppCompatActivity {
-
-  @Override protected void onCreate(Bundle savedInstanceState) {
-    super.onCreate(savedInstanceState);
-    setContentView(R.layout.activity_main);
-
-    RecyclerView recyclerView = (RecyclerView) findViewById(R.id.list);
-    recyclerView.setLayoutManager(new GridLayoutManager(this, 2));
-
-    List<Type> dataSet = new ArrayList<>();
-    dataSet.add(Type.Mask);
-    dataSet.add(Type.NinePatchMask);
-    dataSet.add(Type.CropTop);
-    dataSet.add(Type.CropCenter);
-    dataSet.add(Type.CropBottom);
-    dataSet.add(Type.CropSquare);
-    dataSet.add(Type.CropCircle);
-    dataSet.add(Type.ColorFilter);
-    dataSet.add(Type.Grayscale);
-    dataSet.add(Type.RoundedCorners);
-    dataSet.add(Type.Blur);
-    dataSet.add(Type.Toon);
-    dataSet.add(Type.Sepia);
-    dataSet.add(Type.Contrast);
-    dataSet.add(Type.Invert);
-    dataSet.add(Type.Pixel);
-    dataSet.add(Type.Sketch);
-    dataSet.add(Type.Swirl);
-    dataSet.add(Type.Brightness);
-    dataSet.add(Type.Kuawahara);
-    dataSet.add(Type.Vignette);
-
-    recyclerView.setAdapter(new MainAdapter(this, dataSet));
-  }
-}
--- a/example/src/main/java/jp/wasabeef/example/glide/MainActivity.kt
+++ b/example/src/main/java/jp/wasabeef/example/glide/MainActivity.kt
@@ -0,0 +1,24 @@
+package jp.wasabeef.example.glide
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import jp.wasabeef.example.glide.MainAdapter.Type.*
+
+class MainActivity : AppCompatActivity() {
+
+  override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    setContentView(R.layout.activity_main)
+
+    findViewById<RecyclerView>(R.id.list).apply {
+      layoutManager = LinearLayoutManager(context)
+      adapter = MainAdapter(context, mutableListOf(
+        Mask, NinePatchMask, RoundedCorners, CropTop, CropCenter, CropBottom, CropSquare, CropCircle,
+        CropCircleWithBorder, Grayscale, BlurLight, BlurDeep, Toon, Sepia, Contrast, Invert,
+        Pixel, Sketch, Swirl, Brightness, Kuawahara, Vignette
+      ))
+    }
+  }
+}
--- a/example/src/main/java/jp/wasabeef/example/glide/MainAdapter.java
+++ b/example/src/main/java/jp/wasabeef/example/glide/MainAdapter.java
@@ -1,239 +0,0 @@
-package jp.wasabeef.example.glide;
-
-import android.content.Context;
-import android.graphics.Color;
-import android.graphics.PointF;
-import android.support.v7.widget.RecyclerView;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ImageView;
-import android.widget.TextView;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.resource.bitmap.CenterCrop;
-import java.util.List;
-import jp.wasabeef.glide.transformations.BlurTransformation;
-import jp.wasabeef.glide.transformations.ColorFilterTransformation;
-import jp.wasabeef.glide.transformations.CropCircleTransformation;
-import jp.wasabeef.glide.transformations.CropSquareTransformation;
-import jp.wasabeef.glide.transformations.CropTransformation;
-import jp.wasabeef.glide.transformations.GrayscaleTransformation;
-import jp.wasabeef.glide.transformations.MaskTransformation;
-import jp.wasabeef.glide.transformations.RoundedCornersTransformation;
-import jp.wasabeef.glide.transformations.gpu.BrightnessFilterTransformation;
-import jp.wasabeef.glide.transformations.gpu.ContrastFilterTransformation;
-import jp.wasabeef.glide.transformations.gpu.InvertFilterTransformation;
-import jp.wasabeef.glide.transformations.gpu.KuwaharaFilterTransformation;
-import jp.wasabeef.glide.transformations.gpu.PixelationFilterTransformation;
-import jp.wasabeef.glide.transformations.gpu.SepiaFilterTransformation;
-import jp.wasabeef.glide.transformations.gpu.SketchFilterTransformation;
-import jp.wasabeef.glide.transformations.gpu.SwirlFilterTransformation;
-import jp.wasabeef.glide.transformations.gpu.ToonFilterTransformation;
-import jp.wasabeef.glide.transformations.gpu.VignetteFilterTransformation;
-
-/**
- * Created by Wasabeef on 2015/01/11.
- */
-public class MainAdapter extends RecyclerView.Adapter<MainAdapter.ViewHolder> {
-
-  private Context mContext;
-  private List<Type> mDataSet;
-
-  enum Type {
-    Mask,
-    NinePatchMask,
-    CropTop,
-    CropCenter,
-    CropBottom,
-    CropSquare,
-    CropCircle,
-    ColorFilter,
-    Grayscale,
-    RoundedCorners,
-    Blur,
-    Toon,
-    Sepia,
-    Contrast,
-    Invert,
-    Pixel,
-    Sketch,
-    Swirl,
-    Brightness,
-    Kuawahara,
-    Vignette
-  }
-
-  public MainAdapter(Context context, List<Type> dataSet) {
-    mContext = context;
-    mDataSet = dataSet;
-  }
-
-  @Override public MainAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-    View v = LayoutInflater.from(mContext).inflate(R.layout.layout_list_item, parent, false);
-    return new ViewHolder(v);
-  }
-
-  @Override public void onBindViewHolder(MainAdapter.ViewHolder holder, int position) {
-    switch (mDataSet.get(position)) {
-      case Mask: {
-        int width = Utils.dip2px(mContext, 133.33f);
-        int height = Utils.dip2px(mContext, 126.33f);
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .override(width, height)
-            .bitmapTransform(new CenterCrop(mContext),
-                new MaskTransformation(mContext, R.drawable.mask_starfish))
-            .into(holder.image);
-        break;
-      }
-      case NinePatchMask: {
-        int width = Utils.dip2px(mContext, 150.0f);
-        int height = Utils.dip2px(mContext, 100.0f);
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .override(width, height)
-            .bitmapTransform(new CenterCrop(mContext),
-                new MaskTransformation(mContext, R.drawable.mask_chat_right))
-            .into(holder.image);
-        break;
-      }
-      case CropTop:
-        Glide.with(mContext)
-            .load(R.drawable.demo)
-            .bitmapTransform(
-                new CropTransformation(mContext, 300, 100, CropTransformation.CropType.TOP))
-            .into(holder.image);
-        break;
-      case CropCenter:
-        Glide.with(mContext)
-            .load(R.drawable.demo)
-            .bitmapTransform(new CropTransformation(mContext, 300, 100))
-            .into(holder.image);
-        break;
-      case CropBottom:
-        Glide.with(mContext)
-            .load(R.drawable.demo)
-            .bitmapTransform(
-                new CropTransformation(mContext, 300, 100, CropTransformation.CropType.BOTTOM))
-            .into(holder.image);
-
-        break;
-      case CropSquare:
-        Glide.with(mContext)
-            .load(R.drawable.demo)
-            .bitmapTransform(new CropSquareTransformation(mContext))
-            .into(holder.image);
-        break;
-      case CropCircle:
-        Glide.with(mContext)
-            .load(R.drawable.demo)
-            .bitmapTransform(new CropCircleTransformation(mContext))
-            .into(holder.image);
-        break;
-      case ColorFilter:
-        Glide.with(mContext)
-            .load(R.drawable.demo)
-            .bitmapTransform(new ColorFilterTransformation(mContext, Color.argb(80, 255, 0, 0)))
-            .into(holder.image);
-        break;
-      case Grayscale:
-        Glide.with(mContext)
-            .load(R.drawable.demo)
-            .bitmapTransform(new GrayscaleTransformation(mContext))
-            .into(holder.image);
-        break;
-      case RoundedCorners:
-        Glide.with(mContext)
-            .load(R.drawable.demo)
-            .bitmapTransform(new RoundedCornersTransformation(mContext, 30, 0,
-                RoundedCornersTransformation.CornerType.BOTTOM))
-            .into(holder.image);
-        break;
-      case Blur:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(new BlurTransformation(mContext, 25, 1))
-            .into(holder.image);
-        break;
-      case Toon:
-        Glide.with(mContext)
-            .load(R.drawable.demo)
-            .bitmapTransform(new ToonFilterTransformation(mContext))
-            .into(holder.image);
-        break;
-      case Sepia:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(new SepiaFilterTransformation(mContext))
-            .into(holder.image);
-        break;
-      case Contrast:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(new ContrastFilterTransformation(mContext, 2.0f))
-            .into(holder.image);
-        break;
-      case Invert:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(new InvertFilterTransformation(mContext))
-            .into(holder.image);
-        break;
-      case Pixel:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(new PixelationFilterTransformation(mContext, 20))
-            .into(holder.image);
-        break;
-      case Sketch:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(new SketchFilterTransformation(mContext))
-            .into(holder.image);
-        break;
-      case Swirl:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(
-                new SwirlFilterTransformation(mContext, 0.5f, 1.0f, new PointF(0.5f, 0.5f)))
-            .into(holder.image);
-        break;
-      case Brightness:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(new BrightnessFilterTransformation(mContext, 0.5f))
-            .into(holder.image);
-        break;
-      case Kuawahara:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(new KuwaharaFilterTransformation(mContext, 25))
-            .into(holder.image);
-        break;
-      case Vignette:
-        Glide.with(mContext)
-            .load(R.drawable.check)
-            .bitmapTransform(new VignetteFilterTransformation(mContext, new PointF(0.5f, 0.5f),
-                new float[] { 0.0f, 0.0f, 0.0f }, 0f, 0.75f))
-            .into(holder.image);
-        break;
-    }
-    holder.title.setText(mDataSet.get(position).name());
-  }
-
-  @Override public int getItemCount() {
-    return mDataSet.size();
-  }
-
-  static class ViewHolder extends RecyclerView.ViewHolder {
-
-    public ImageView image;
-    public TextView title;
-
-    ViewHolder(View itemView) {
-      super(itemView);
-      image = (ImageView) itemView.findViewById(R.id.image);
-      title = (TextView) itemView.findViewById(R.id.title);
-    }
-  }
-}
--- a/example/src/main/java/jp/wasabeef/example/glide/MainAdapter.kt
+++ b/example/src/main/java/jp/wasabeef/example/glide/MainAdapter.kt
@@ -0,0 +1,203 @@
+package jp.wasabeef.example.glide
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Color
+import android.graphics.PointF
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import com.bumptech.glide.Glide
+import com.bumptech.glide.load.MultiTransformation
+import com.bumptech.glide.load.resource.bitmap.CenterCrop
+import com.bumptech.glide.request.RequestOptions.bitmapTransform
+import com.bumptech.glide.request.RequestOptions.overrideOf
+import jp.wasabeef.example.glide.MainAdapter.Type.*
+import jp.wasabeef.glide.transformations.*
+import jp.wasabeef.glide.transformations.CropTransformation.CropType
+import jp.wasabeef.glide.transformations.gpu.*
+import jp.wasabeef.glide.transformations.internal.Utils
+
+/**
+ * Created by Wasabeef on 2015/01/11.
+ */
+class MainAdapter(
+  private val context: Context,
+  private val dataSet: MutableList<Type>
+) : RecyclerView.Adapter<MainAdapter.ViewHolder>() {
+
+  enum class Type {
+    Mask,
+    NinePatchMask,
+    CropTop,
+    CropCenter,
+    CropBottom,
+    CropSquare,
+    CropCircle,
+    CropCircleWithBorder,
+    ColorFilter,
+    Grayscale,
+    RoundedCorners,
+    BlurLight,
+    BlurDeep,
+    Toon,
+    Sepia,
+    Contrast,
+    Invert,
+    Pixel,
+    Sketch,
+    Swirl,
+    Brightness,
+    Kuawahara,
+    Vignette
+  }
+
+  override fun getItemCount(): Int {
+    return dataSet.size
+  }
+
+  override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+    val v = LayoutInflater.from(context).inflate(R.layout.layout_list_item, parent, false)
+    return ViewHolder(v)
+  }
+
+  override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+
+    when (dataSet[position]) {
+      Mask -> {
+        Glide.with(context)
+          .load(R.drawable.check)
+          .apply(overrideOf(266.px, 252.px))
+          .apply(bitmapTransform(MultiTransformation<Bitmap>(CenterCrop(),
+            MaskTransformation(R.drawable.mask_starfish))))
+          .into(holder.image)
+      }
+      NinePatchMask -> {
+        Glide.with(context)
+          .load(R.drawable.check)
+          .apply(overrideOf(300.px, 200.px))
+          .apply(bitmapTransform(MultiTransformation<Bitmap>(CenterCrop(),
+            MaskTransformation(R.drawable.mask_chat_right))))
+          .into(holder.image)
+      }
+
+      CropTop -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(CropTransformation(300.px, 100.px, CropType.TOP)))
+        .into(holder.image)
+
+      CropCenter -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(CropTransformation(300.px, 100.px, CropType.CENTER)))
+        .into(holder.image)
+
+      CropBottom -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(CropTransformation(300.px, 100.px, CropType.BOTTOM)))
+        .into(holder.image)
+
+      CropSquare -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(CropSquareTransformation()))
+        .into(holder.image)
+
+      CropCircle -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(CropCircleTransformation()))
+        .into(holder.image)
+
+      CropCircleWithBorder -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(
+          CropCircleWithBorderTransformation(Utils.toDp(4), Color.rgb(0, 145, 86))))
+        .into(holder.image)
+
+      ColorFilter -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(ColorFilterTransformation(Color.argb(80, 255, 0, 0))))
+        .into(holder.image)
+
+      Grayscale -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(GrayscaleTransformation()))
+        .into(holder.image)
+
+      RoundedCorners -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(RoundedCornersTransformation(120, 0,
+          RoundedCornersTransformation.CornerType.DIAGONAL_FROM_TOP_LEFT)))
+        .into(holder.image)
+
+      BlurLight -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(BlurTransformation(25)))
+        .into(holder.image)
+
+      BlurDeep -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(BlurTransformation(25, 8)))
+        .into(holder.image)
+
+      Toon -> Glide.with(context)
+        .load(R.drawable.demo)
+        .apply(bitmapTransform(ToonFilterTransformation()))
+        .into(holder.image)
+
+      Sepia -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(SepiaFilterTransformation()))
+        .into(holder.image)
+
+      Contrast -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(ContrastFilterTransformation(2.0f)))
+        .into(holder.image)
+
+      Invert -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(InvertFilterTransformation()))
+        .into(holder.image)
+
+      Pixel -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(PixelationFilterTransformation(20f)))
+        .into(holder.image)
+
+      Sketch -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(SketchFilterTransformation()))
+        .into(holder.image)
+
+      Swirl -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(
+          SwirlFilterTransformation(0.5f, 1.0f, PointF(0.5f, 0.5f))).dontAnimate())
+        .into(holder.image)
+
+      Brightness -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(BrightnessFilterTransformation(0.5f)).dontAnimate())
+        .into(holder.image)
+
+      Kuawahara -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(KuwaharaFilterTransformation(25)).dontAnimate())
+        .into(holder.image)
+
+      Vignette -> Glide.with(context)
+        .load(R.drawable.check)
+        .apply(bitmapTransform(VignetteFilterTransformation(PointF(0.5f, 0.5f),
+          floatArrayOf(0.0f, 0.0f, 0.0f), 0f, 0.75f)).dontAnimate())
+        .into(holder.image)
+    }
+    holder.title.text = dataSet[position].name
+  }
+
+  class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+    var image: ImageView = itemView.findViewById(R.id.image)
+    var title: TextView = itemView.findViewById(R.id.title)
+  }
+}
--- a/example/src/main/res/drawable-hdpi/ic_launcher.png
+++ b/example/src/main/res/drawable-hdpi/ic_launcher.png
--- a/example/src/main/res/drawable-mdpi/ic_launcher.png
+++ b/example/src/main/res/drawable-mdpi/ic_launcher.png
--- a/example/src/main/res/drawable-xhdpi/ic_launcher.png
+++ b/example/src/main/res/drawable-xhdpi/ic_launcher.png
--- a/example/src/main/res/drawable-xxhdpi/ic_launcher.png
+++ b/example/src/main/res/drawable-xxhdpi/ic_launcher.png
--- a/example/src/main/res/layout/activity_main.xml
+++ b/example/src/main/res/layout/activity_main.xml
@@ -1,15 +1,15 @@
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-  xmlns:tools="http://schemas.android.com/tools"
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:app="http://schemas.android.com/apk/res-auto"
  android:layout_width="match_parent"
-  android:layout_height="match_parent"
-  android:background="#CC000000"
-  tools:context=".MainActivity"
-  >
+  android:layout_height="match_parent">

-  <android.support.v7.widget.RecyclerView
+  <androidx.recyclerview.widget.RecyclerView
    android:id="@+id/list"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    />
-
-</RelativeLayout>
+    android:layout_width="0dp"
+    android:layout_height="0dp"
+    app:layout_constraintBottom_toBottomOf="parent"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/example/src/main/res/layout/layout_list_item.xml
+++ b/example/src/main/res/layout/layout_list_item.xml
@@ -1,26 +1,32 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:app="http://schemas.android.com/apk/res-auto"
  android:layout_width="match_parent"
-  android:layout_height="match_parent"
-  android:padding="5dp"
-  >
+  android:layout_height="wrap_content">

  <ImageView
    android:id="@+id/image"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_centerInParent="true"
-    android:contentDescription="@null"
-    />
+    android:layout_width="250dp"
+    android:layout_height="250dp"
+    android:layout_marginBottom="8dp"
+    android:layout_marginEnd="8dp"
+    android:layout_marginStart="8dp"
+    android:layout_marginTop="8dp"
+    android:cropToPadding="false"
+    android:scaleType="fitCenter"
+    app:layout_constraintBottom_toTopOf="@+id/title"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    app:layout_constraintTop_toTopOf="parent" />

  <TextView
    android:id="@+id/title"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
-    android:layout_below="@id/image"
-    android:layout_centerHorizontal="true"
-    android:layout_marginTop="5dp"
-    android:textColor="@android:color/white"
-    />
-
-</RelativeLayout>
+    android:layout_marginBottom="8dp"
+    android:layout_marginEnd="8dp"
+    android:layout_marginStart="8dp"
+    app:layout_constraintBottom_toBottomOf="parent"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/example/src/main/res/values/colors.xml
+++ b/example/src/main/res/values/colors.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <color name="colorPrimary">#3F51B5</color>
+  <color name="colorPrimaryDark">#303F9F</color>
+  <color name="colorAccent">#FF4081</color>
+</resources>
--- a/example/src/main/res/values/styles.xml
+++ b/example/src/main/res/values/styles.xml
@@ -3,6 +3,9 @@
  <!-- Base application theme. -->
  <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
+    <item name="colorPrimary">@color/colorPrimary</item>
+    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+    <item name="colorAccent">@color/colorAccent</item>
  </style>

-</resources>
+</resources>
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,28 +1,16 @@
-VERSION_NAME=1.4.0
+org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=1024m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+org.gradle.parallel=true
+org.gradle.daemon=true
+org.gradle.configureondemand=true
+org.gradle.caching=true
+android.enableBuildCache=true
+android.useAndroidX=true
+# Use R8 instead of ProGuard for code shrinking.
+android.enableR8.fullMode=true
+
+VERSION_NAME=4.3.0
+VERSION_CODE=421
 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
-POM_URL=https://github.com/wasabeef/glide-transformations
-POM_SCM_URL=scm:git@github.com:wasabeef/glide-transformations.git
-POM_SCM_CONNECTION=scm:git@github.com:wasabeef/glide-transformations.git
-POM_SCM_DEV_CONNECTION=scm:git@github.com:wasabeef/glide-transformations.git
-POM_LICENCE_NAME=The Apache Software License, Version 2.0
-POM_LICENCE_URL=http://www.apache.org/licenses/LICENSE-2.0.txt
-POM_LICENCE_DIST=repo
-POM_DEVELOPER_ID=wasabeef
-POM_DEVELOPER_NAME=Wasabeef
-POM_DEVELOPER_EMAIL=dadadada.chop@gmail.com
-POM_DEVELOPER_URL=wasabeef.jp
-ISSUE_URL=https://github.com/wasabeef/glide-transformations/issues
-
-SUPPORT_PACKAGE_VERSION=23.1.1
-GLIDE_VERSION=3.6.1
-GPUIMAGE_VERSION=1.3.0
+COMPILE_SDK_VERSION=30
+TARGET_SDK_VERSION=30
+MIN_SDK_VERSION=21
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,5 @@
-#Wed Apr 10 15:27:10 PDT 2013
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.11-all.zip
--- a/149
+++ b/149
@@ -1,4 +1,20 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# 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
+#
+#      https://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.
+#

 ##############################################################################
 ##
@@ -6,47 +22,6 @@
 ##
 ##############################################################################

-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
-
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
-
-warn ( ) {
-    echo "$*"
-}
-
-die ( ) {
-    echo
-    echo "$*"
-    echo
-    exit 1
-}
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-esac
-
-# For Cygwin, ensure paths are in UNIX format before anything is touched.
-if $cygwin ; then
-    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
-fi
-
 # Attempt to set APP_HOME
 # Resolve links: $0 may be a link
 PRG="$0"
@@ -61,12 +36,53 @@ while [ -h "$PRG" ] ; do
    fi
 done
 SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >&-
+cd "`dirname \"$PRG\"`/" >/dev/null
 APP_HOME="`pwd -P`"
-cd "$SAVED" >&-
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac

 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar

+
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
@@ -90,7 +106,7 @@ location of your Java installation."
 fi

 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
    MAX_FD_LIMIT=`ulimit -H -n`
    if [ $? -eq 0 ] ; then
        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
@@ -110,11 +126,13 @@ if $darwin; then
    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
 fi

-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`

+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
    # We build the pattern for arguments to be converted via cygpath
    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
    SEP=""
@@ -138,27 +156,30 @@ if $cygwin ; then
        else
            eval `echo args$i`="\"$arg\""
        fi
-        i=$((i+1))
+        i=`expr $i + 1`
    done
    case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
    esac
 fi

-# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
-function splitJvmOpts() {
-    JVM_OPTS=("$@")
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
 }
-eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
-JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+APP_ARGS=`save "$@"`

-exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -1,3 +1,19 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@@ -8,20 +24,23 @@
@rem Set local scope for the variables with windows NT shell
 if "%OS%"=="Windows_NT" setlocal

-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
 set DIRNAME=%~dp0
 if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%

+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
@rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome

 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if "%ERRORLEVEL%" == "0" goto execute

 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -35,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe

-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute

 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -45,34 +64,14 @@ echo location of your Java installation.

 goto fail

-:init
-@rem Get command-line arguments, handling Windowz variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-if "%@eval[2+2]" == "4" goto 4NT_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-goto execute
-
-:4NT_args
-@rem Get arguments from the 4NT Shell from JP Software
-set CMD_LINE_ARGS=%$
-
 :execute
@rem Setup the command line

 set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar

+
@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*

 :end
@rem End local scope for the variables with windows NT shell
--- a/signingConfigs/debug.gradle
+++ b/signingConfigs/debug.gradle
@@ -0,0 +1,14 @@
+signingConfigs {
+  debug {
+    storeFile file("debug.keystore")
+    storePassword "android"
+    keyAlias "androiddebugkey"
+    keyPassword "android"
+  }
+}
+
+// $ keytool -v -list -keystore
+// Certificate fingerprints:
+// MD5:  28:22:7C:A4:B9:2F:6E:C7:D5:58:62:48:EB:7E:82:C3
+// SHA1: 94:25:A9:50:9C:0E:AE:AA:00:37:5E:D6:71:E3:BC:ED:17:E5:0C:A3
+// SHA256: 04:92:39:09:3D:1C:B6:16:BE:55:58:A3:5F:3B:BB:CB:0B:E7:F1:DA:AA:26:C5:2D:BD:2F:44:CF:AE:47:CF:87
--- a/signingConfigs/debug.keystore
+++ b/signingConfigs/debug.keystore
--- a/transformations/build.gradle
+++ b/transformations/build.gradle
@@ -1,54 +1,41 @@
 apply plugin: 'com.android.library'
-apply plugin: 'com.novoda.bintray-release'

 android {
-    compileSdkVersion COMPILE_SDK_VERSION as int
-    buildToolsVersion BUILD_TOOLS_VERSION
+  compileSdkVersion COMPILE_SDK_VERSION as int

-    defaultConfig {
-        minSdkVersion MIN_SDK_VERSION as int
-        targetSdkVersion TARGET_SDK_VERSION as int
-        versionCode "git rev-list origin/master --count".execute().text.toInteger()
-        versionName VERSION_NAME
+  defaultConfig {
+    minSdkVersion MIN_SDK_VERSION as int
+    targetSdkVersion TARGET_SDK_VERSION as int

-        // Warning:Renderscript support mode is not currently supported with renderscript target 21+
-        renderscriptTargetApi RENDERSCRIPT_TARGET_API as int
-        renderscriptSupportModeEnabled true
-
-        consumerProguardFiles 'proguard-rules.txt'
-    }
+    consumerProguardFiles 'proguard-rules.txt'
+  }
 }

 dependencies {
-    compile "com.github.bumptech.glide:glide:${GLIDE_VERSION}"
-    provided "jp.co.cyberagent.android.gpuimage:gpuimage-library:${GPUIMAGE_VERSION}"
+  implementation "com.github.bumptech.glide:glide:$glide_version"
+  annotationProcessor "com.github.bumptech.glide:compiler:$glide_version"
+  compileOnly "jp.co.cyberagent.android:gpuimage:$gpuimage_version"
 }

-task androidJavadocs(type: Javadoc) {
-    source = android.sourceSets.main.java.srcDirs
-    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+ext {
+  bintrayRepo = 'maven'
+  bintrayName = 'glide-transformations'
+  bintrayUserOrg = 'wasabeef'
+  publishedGroupId = 'jp.wasabeef'
+  libraryName = 'glide-transformations'
+  artifact = 'glide-transformations'
+  libraryDescription = 'Which provides simple Transformations to Glide'
+  siteUrl = 'https://github.com/wasabeef/glide-transformations'
+  gitUrl = 'https://github.com/wasabeef/glide-transformations.git'
+  issueUrl = 'https://github.com/wasabeef/glide-transformations/issues'
+  libraryVersion = VERSION_NAME
+  developerId = 'wasabeef'
+  developerName = 'Wasabeef'
+  developerEmail = 'dadadada.chop@gmail.com'
+  licenseName = 'The Apache Software License, Version 2.0'
+  licenseUrl = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+  allLicenses = ["Apache-2.0"]
 }

-task androidJavadocsJar(type: Jar, dependsOn: androidJavadocs) {
-    classifier = 'javadoc'
-    from androidJavadocs.destinationDir
-}
-
-task androidSourcesJar(type: Jar) {
-    classifier = 'sources'
-    from android.sourceSets.main.java.srcDirs
-}
-
-artifacts {
-    archives androidSourcesJar
-    archives androidJavadocsJar
-}
-
-publish {
-    userOrg = POM_DEVELOPER_ID
-    groupId = GROUP
-    artifactId = ARTIFACT_ID
-    publishVersion = VERSION_NAME
-    desc = POM_DESCRIPTION
-    website = POM_URL
-}
+apply from: 'https://gist.githubusercontent.com/wasabeef/cf14805bee509baf7461974582f17d26/raw/bintray-v1.gradle'
+apply from: 'https://gist.githubusercontent.com/wasabeef/cf14805bee509baf7461974582f17d26/raw/install-v1.gradle'
--- a/transformations/proguard-rules.txt
+++ b/transformations/proguard-rules.txt
@@ -1,7 +1,8 @@
-keepclasseswithmembernames class * {
-    native <methods>;
+-dontwarn jp.co.cyberagent.android.gpuimage.**
+
+-keep public class * implements com.bumptech.glide.module.GlideModule
+-keep public class * extends com.bumptech.glide.module.AppGlideModule
+-keep public enum com.bumptech.glide.load.ImageHeaderParser$** {
+  **[] $VALUES;
+  public *;
 }
-
-keep class android.support.v8.renderscript.** { *; }
-
-dontwarn jp.co.cyberagent.android.gpuimage.**
--- a/transformations/src/androidTest/java/jp/wasabeef/glide/transformations/ApplicationTest.java
+++ b/transformations/src/androidTest/java/jp/wasabeef/glide/transformations/ApplicationTest.java
@@ -8,7 +8,7 @@ import android.test.ApplicationTestCase;
 */
 public class ApplicationTest extends ApplicationTestCase<Application> {

-    public ApplicationTest() {
-        super(Application.class);
-    }
+  public ApplicationTest() {
+    super(Application.class);
+  }
 }
--- a/transformations/src/main/AndroidManifest.xml
+++ b/transformations/src/main/AndroidManifest.xml
@@ -1 +1 @@
-<manifest package="jp.wasabeef.glide.transformations"></manifest>
+<manifest package="jp.wasabeef.glide.transformations" />
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/BitmapTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/BitmapTransformation.java
@@ -0,0 +1,76 @@
+package jp.wasabeef.glide.transformations;
+
+/**
+ * Copyright (C) 2020 Wasabeef
+ * Copyright 2014 Google, Inc. All rights reserved.
+ * <p>
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.
+ */
+
+import android.content.Context;
+import android.graphics.Bitmap;
+
+import androidx.annotation.NonNull;
+
+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 com.bumptech.glide.request.target.Target;
+import com.bumptech.glide.util.Util;
+
+import java.security.MessageDigest;
+
+public abstract class BitmapTransformation implements Transformation<Bitmap> {
+
+  @NonNull
+  @Override
+  public final Resource<Bitmap> transform(@NonNull Context context, @NonNull Resource<Bitmap> resource,
+                                          int outWidth, int outHeight) {
+    if (!Util.isValidDimensions(outWidth, outHeight)) {
+      throw new IllegalArgumentException(
+        "Cannot apply transformation on width: " + outWidth + " or height: " + outHeight
+          + " less than or equal to zero and not Target.SIZE_ORIGINAL");
+    }
+    BitmapPool bitmapPool = Glide.get(context).getBitmapPool();
+    Bitmap toTransform = resource.get();
+    int targetWidth = outWidth == Target.SIZE_ORIGINAL ? toTransform.getWidth() : outWidth;
+    int targetHeight = outHeight == Target.SIZE_ORIGINAL ? toTransform.getHeight() : outHeight;
+    Bitmap transformed = transform(context.getApplicationContext(), bitmapPool, toTransform, targetWidth, targetHeight);
+
+    final Resource<Bitmap> result;
+    if (toTransform.equals(transformed)) {
+      result = resource;
+    } else {
+      result = BitmapResource.obtain(transformed, bitmapPool);
+    }
+    return result;
+  }
+
+  void setCanvasBitmapDensity(@NonNull Bitmap toTransform, @NonNull Bitmap canvasBitmap) {
+    canvasBitmap.setDensity(toTransform.getDensity());
+  }
+
+  protected abstract Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                                      @NonNull Bitmap toTransform, int outWidth, int outHeight);
+
+  @Override
+  public abstract void updateDiskCacheKey(@NonNull MessageDigest messageDigest);
+
+  @Override
+  public abstract boolean equals(Object o);
+
+  @Override
+  public abstract int hashCode();
+}
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/BlurTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/BlurTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -20,101 +20,89 @@ 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 com.bumptech.glide.Glide;
-import com.bumptech.glide.load.Transformation;
-import com.bumptech.glide.load.engine.Resource;
+import android.renderscript.RSRuntimeException;
+
+import androidx.annotation.NonNull;
+
 import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import com.bumptech.glide.load.resource.bitmap.BitmapResource;
+
+import java.security.MessageDigest;
+
 import jp.wasabeef.glide.transformations.internal.FastBlur;
+import jp.wasabeef.glide.transformations.internal.RSBlur;

-public class BlurTransformation implements Transformation<Bitmap> {
+public class BlurTransformation extends BitmapTransformation {

-  private static int MAX_RADIUS = 25;
-  private static int DEFAULT_DOWN_SAMPLING = 1;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.BlurTransformation." + VERSION;

-  private Context mContext;
-  private BitmapPool mBitmapPool;
+  private static final int MAX_RADIUS = 25;
+  private static final int DEFAULT_DOWN_SAMPLING = 1;

-  private int mRadius;
-  private int mSampling;
+  private final int radius;
+  private final int sampling;

-  public BlurTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool(), MAX_RADIUS, DEFAULT_DOWN_SAMPLING);
+  public BlurTransformation() {
+    this(MAX_RADIUS, DEFAULT_DOWN_SAMPLING);
  }

-  public BlurTransformation(Context context, BitmapPool pool) {
-    this(context, pool, MAX_RADIUS, DEFAULT_DOWN_SAMPLING);
+  public BlurTransformation(int radius) {
+    this(radius, DEFAULT_DOWN_SAMPLING);
  }

-  public BlurTransformation(Context context, BitmapPool pool, int radius) {
-    this(context, pool, radius, DEFAULT_DOWN_SAMPLING);
-  }
-
-  public BlurTransformation(Context context, int radius) {
-    this(context, Glide.get(context).getBitmapPool(), radius, DEFAULT_DOWN_SAMPLING);
-  }
-
-  public BlurTransformation(Context context, int radius, int sampling) {
-    this(context, Glide.get(context).getBitmapPool(), radius, sampling);
-  }
-
-  public BlurTransformation(Context context, BitmapPool pool, int radius, int sampling) {
-    mContext = context.getApplicationContext();
-    mBitmapPool = pool;
-    mRadius = radius;
-    mSampling = sampling;
+  public BlurTransformation(int radius, int sampling) {
+    this.radius = radius;
+    this.sampling = sampling;
  }

  @Override
-  public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) {
-    Bitmap source = resource.get();
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {

-    int width = source.getWidth();
-    int height = source.getHeight();
-    int scaledWidth = width / mSampling;
-    int scaledHeight = height / mSampling;
+    int width = toTransform.getWidth();
+    int height = toTransform.getHeight();
+    int scaledWidth = width / sampling;
+    int scaledHeight = height / sampling;

-    Bitmap bitmap = mBitmapPool.get(scaledWidth, scaledHeight, Bitmap.Config.ARGB_8888);
-    if (bitmap == null) {
-      bitmap = Bitmap.createBitmap(scaledWidth, scaledHeight, Bitmap.Config.ARGB_8888);
-    }
+    Bitmap bitmap = pool.get(scaledWidth, scaledHeight, Bitmap.Config.ARGB_8888);
+
+    setCanvasBitmapDensity(toTransform, bitmap);

    Canvas canvas = new Canvas(bitmap);
-    canvas.scale(1 / (float) mSampling, 1 / (float) mSampling);
+    canvas.scale(1 / (float) sampling, 1 / (float) sampling);
    Paint paint = new Paint();
    paint.setFlags(Paint.FILTER_BITMAP_FLAG);
-    canvas.drawBitmap(source, 0, 0, paint);
+    canvas.drawBitmap(toTransform, 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);
+      bitmap = RSBlur.blur(context, bitmap, radius);
    } catch (RSRuntimeException e) {
-      bitmap = FastBlur.doBlur(bitmap, mRadius, true);
-    } finally {
-      if (rs != null) {
-        rs.destroy();
-      }
+      bitmap = FastBlur.blur(bitmap, radius, true);
    }

-    return BitmapResource.obtain(bitmap, mBitmapPool);
+    return bitmap;
  }

-  @Override public String getId() {
-    return "BlurTransformation(radius=" + mRadius + ", sampling=" + mSampling + ")";
+  @Override
+  public String toString() {
+    return "BlurTransformation(radius=" + radius + ", sampling=" + sampling + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof BlurTransformation &&
+      ((BlurTransformation) o).radius == radius &&
+      ((BlurTransformation) o).sampling == sampling;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + radius * 1000 + sampling * 10;
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + radius + sampling).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/ColorFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/ColorFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -22,51 +22,64 @@ import android.graphics.Canvas;
 import android.graphics.Paint;
 import android.graphics.PorterDuff;
 import android.graphics.PorterDuffColorFilter;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.Transformation;
-import com.bumptech.glide.load.engine.Resource;
+
+import androidx.annotation.NonNull;
+
 import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import com.bumptech.glide.load.resource.bitmap.BitmapResource;

-public class ColorFilterTransformation implements Transformation<Bitmap> {
+import java.security.MessageDigest;

-  private BitmapPool mBitmapPool;
+public class ColorFilterTransformation extends BitmapTransformation {

-  private int mColor;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.ColorFilterTransformation." + VERSION;

-  public ColorFilterTransformation(Context context, int color) {
-    this(Glide.get(context).getBitmapPool(), color);
-  }
+  private final int color;

-  public ColorFilterTransformation(BitmapPool pool, int color) {
-    mBitmapPool = pool;
-    mColor = color;
+  public ColorFilterTransformation(int color) {
+    this.color = color;
  }

  @Override
-  public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) {
-    Bitmap source = resource.get();
-
-    int width = source.getWidth();
-    int height = source.getHeight();
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {
+    int width = toTransform.getWidth();
+    int height = toTransform.getHeight();

    Bitmap.Config config =
-        source.getConfig() != null ? source.getConfig() : Bitmap.Config.ARGB_8888;
-    Bitmap bitmap = mBitmapPool.get(width, height, config);
-    if (bitmap == null) {
-      bitmap = Bitmap.createBitmap(width, height, config);
-    }
+      toTransform.getConfig() != null ? toTransform.getConfig() : Bitmap.Config.ARGB_8888;
+    Bitmap bitmap = pool.get(width, height, config);
+
+    setCanvasBitmapDensity(toTransform, bitmap);

    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();
    paint.setAntiAlias(true);
-    paint.setColorFilter(new PorterDuffColorFilter(mColor, PorterDuff.Mode.SRC_ATOP));
-    canvas.drawBitmap(source, 0, 0, paint);
+    paint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_ATOP));
+    canvas.drawBitmap(toTransform, 0, 0, paint);

-    return BitmapResource.obtain(bitmap, mBitmapPool);
+    return bitmap;
  }

-  @Override public String getId() {
-    return "ColorFilterTransformation(color=" + mColor + ")";
+  @Override
+  public String toString() {
+    return "ColorFilterTransformation(color=" + color + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof ColorFilterTransformation &&
+      ((ColorFilterTransformation) o).color == color;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + color * 10;
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + color).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -18,61 +18,48 @@ package jp.wasabeef.glide.transformations;

 import android.content.Context;
 import android.graphics.Bitmap;
-import android.graphics.BitmapShader;
-import android.graphics.Canvas;
-import android.graphics.Matrix;
-import android.graphics.Paint;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.Transformation;
-import com.bumptech.glide.load.engine.Resource;
+
+import androidx.annotation.NonNull;
+
 import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import com.bumptech.glide.load.resource.bitmap.BitmapResource;
+import com.bumptech.glide.load.resource.bitmap.TransformationUtils;
+import com.bumptech.glide.request.RequestOptions;

-public class CropCircleTransformation implements Transformation<Bitmap> {
+import java.security.MessageDigest;

-  private BitmapPool mBitmapPool;
+/**
+ * @deprecated Use {@link RequestOptions#circleCrop()}.
+ */
+@Deprecated
+public class CropCircleTransformation extends BitmapTransformation {

-  public CropCircleTransformation(Context context) {
-    this(Glide.get(context).getBitmapPool());
-  }
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.CropCircleTransformation." + VERSION;

-  public CropCircleTransformation(BitmapPool pool) {
-    this.mBitmapPool = pool;
+  @Override
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {
+    return TransformationUtils.circleCrop(pool, toTransform, outWidth, outHeight);
  }

  @Override
-  public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) {
-    Bitmap source = resource.get();
-    int size = Math.min(source.getWidth(), source.getHeight());
-
-    int width = (source.getWidth() - size) / 2;
-    int height = (source.getHeight() - size) / 2;
-
-    Bitmap bitmap = mBitmapPool.get(size, size, Bitmap.Config.ARGB_8888);
-    if (bitmap == null) {
-      bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
-    }
-
-    Canvas canvas = new Canvas(bitmap);
-    Paint paint = new Paint();
-    BitmapShader shader =
-        new BitmapShader(source, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
-    if (width != 0 || height != 0) {
-      // source isn't square, move viewport to center
-      Matrix matrix = new Matrix();
-      matrix.setTranslate(-width, -height);
-      shader.setLocalMatrix(matrix);
-    }
-    paint.setShader(shader);
-    paint.setAntiAlias(true);
-
-    float r = size / 2f;
-    canvas.drawCircle(r, r, r, paint);
-
-    return BitmapResource.obtain(bitmap, mBitmapPool);
-  }
-
-  @Override public String getId() {
+  public String toString() {
    return "CropCircleTransformation()";
  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof CropCircleTransformation;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode();
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID).getBytes(CHARSET));
+  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleWithBorderTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleWithBorderTransformation.java
@@ -0,0 +1,96 @@
+package jp.wasabeef.glide.transformations;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+
+import androidx.annotation.ColorInt;
+import androidx.annotation.NonNull;
+
+import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
+import com.bumptech.glide.load.resource.bitmap.TransformationUtils;
+
+import java.security.MessageDigest;
+
+import jp.wasabeef.glide.transformations.internal.Utils;
+
+/**
+ * Copyright (C) 2020 Wasabeef
+ * <p>
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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 CropCircleWithBorderTransformation extends BitmapTransformation {
+
+
+  private static final int VERSION = 1;
+  private static final String ID = "jp.wasabeef.glide.transformations.CropCircleWithBorderTransformation." + VERSION;
+
+  private final int borderSize;
+  private final int borderColor;
+
+
+  public CropCircleWithBorderTransformation() {
+    this.borderSize = Utils.toDp(4);
+    this.borderColor = Color.BLACK;
+  }
+
+  public CropCircleWithBorderTransformation(int borderSize, @ColorInt int borderColor) {
+    this.borderSize = borderSize;
+    this.borderColor = borderColor;
+  }
+
+  @Override
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {
+
+    Bitmap bitmap = TransformationUtils.circleCrop(pool, toTransform, outWidth, outHeight);
+
+    setCanvasBitmapDensity(toTransform, bitmap);
+
+    Paint paint = new Paint();
+    paint.setColor(borderColor);
+    paint.setStyle(Paint.Style.STROKE);
+    paint.setStrokeWidth(borderSize);
+    paint.setAntiAlias(true);
+
+    Canvas canvas = new Canvas(bitmap);
+    canvas.drawCircle(
+      outWidth / 2f,
+      outHeight / 2f,
+      Math.max(outWidth, outHeight) / 2f - borderSize / 2f,
+      paint
+    );
+
+    return bitmap;
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + borderSize + borderColor).getBytes(CHARSET));
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof CropCircleWithBorderTransformation &&
+      ((CropCircleWithBorderTransformation) o).borderSize == borderSize &&
+      ((CropCircleWithBorderTransformation) o).borderColor == borderColor;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + borderSize * 100 + borderColor + 10;
+  }
+}
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -18,45 +18,46 @@ package jp.wasabeef.glide.transformations;

 import android.content.Context;
 import android.graphics.Bitmap;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.Transformation;
-import com.bumptech.glide.load.engine.Resource;
+
+import androidx.annotation.NonNull;
+
 import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import com.bumptech.glide.load.resource.bitmap.BitmapResource;
+import com.bumptech.glide.load.resource.bitmap.TransformationUtils;

-public class CropSquareTransformation implements Transformation<Bitmap> {
+import java.security.MessageDigest;

-  private BitmapPool mBitmapPool;
-  private int mWidth;
-  private int mHeight;
+public class CropSquareTransformation extends BitmapTransformation {

-  public CropSquareTransformation(Context context) {
-    this(Glide.get(context).getBitmapPool());
-  }
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.CropSquareTransformation." + VERSION;

-  public CropSquareTransformation(BitmapPool pool) {
-    this.mBitmapPool = pool;
+  private int size;
+
+  @Override
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {
+    this.size = Math.max(outWidth, outHeight);
+    return TransformationUtils.centerCrop(pool, toTransform, size, size);
  }

  @Override
-  public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) {
-    Bitmap source = resource.get();
-    int size = Math.min(source.getWidth(), source.getHeight());
-
-    mWidth = (source.getWidth() - size) / 2;
-    mHeight = (source.getHeight() - size) / 2;
-
-    Bitmap.Config config =
-        source.getConfig() != null ? source.getConfig() : Bitmap.Config.ARGB_8888;
-    Bitmap bitmap = mBitmapPool.get(mWidth, mHeight, config);
-    if (bitmap == null) {
-      bitmap = Bitmap.createBitmap(source, mWidth, mHeight, size, size);
-    }
-
-    return BitmapResource.obtain(bitmap, mBitmapPool);
+  public String toString() {
+    return "CropSquareTransformation(size=" + size + ")";
  }

-  @Override public String getId() {
-    return "CropSquareTransformation(width=" + mWidth + ", height=" + mHeight + ")";
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof CropSquareTransformation && ((CropSquareTransformation) o).size == size;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + size * 10;
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + size).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -20,13 +20,17 @@ import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.RectF;
-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;

-public class CropTransformation implements Transformation<Bitmap> {
+import androidx.annotation.NonNull;
+
+import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
+
+import java.security.MessageDigest;
+
+public class CropTransformation extends BitmapTransformation {
+
+  private static final int VERSION = 1;
+  private static final String ID = "jp.wasabeef.glide.transformations.CropTransformation." + VERSION;

  public enum CropType {
    TOP,
@@ -34,83 +38,85 @@ public class CropTransformation implements Transformation<Bitmap> {
    BOTTOM
  }

-  private BitmapPool mBitmapPool;
-  private int mWidth;
-  private int mHeight;
+  private int width;
+  private int height;

-  private CropType mCropType = CropType.CENTER;
+  private CropType cropType = CropType.CENTER;

-  public CropTransformation(Context context) {
-    this(Glide.get(context).getBitmapPool());
+  public CropTransformation(int width, int height) {
+    this(width, height, CropType.CENTER);
  }

-  public CropTransformation(BitmapPool pool) {
-    this(pool, 0, 0);
-  }
-
-  public CropTransformation(Context context, int width, int height) {
-    this(Glide.get(context).getBitmapPool(), width, height);
-  }
-
-  public CropTransformation(BitmapPool pool, int width, int height) {
-    this(pool, width, height, CropType.CENTER);
-  }
-
-  public CropTransformation(Context context, int width, int height, CropType cropType) {
-    this(Glide.get(context).getBitmapPool(), width, height, cropType);
-  }
-
-  public CropTransformation(BitmapPool pool, int width, int height, CropType cropType) {
-    mBitmapPool = pool;
-    mWidth = width;
-    mHeight = height;
-    mCropType = cropType;
+  public CropTransformation(int width, int height, CropType cropType) {
+    this.width = width;
+    this.height = height;
+    this.cropType = cropType;
  }

  @Override
-  public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) {
-    Bitmap source = resource.get();
-    mWidth = mWidth == 0 ? source.getWidth() : mWidth;
-    mHeight = mHeight == 0 ? source.getHeight() : mHeight;
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {
+
+    width = width == 0 ? toTransform.getWidth() : width;
+    height = height == 0 ? toTransform.getHeight() : height;

    Bitmap.Config config =
-        source.getConfig() != null ? source.getConfig() : Bitmap.Config.ARGB_8888;
-    Bitmap bitmap = mBitmapPool.get(mWidth, mHeight, config);
-    if (bitmap == null) {
-      bitmap = Bitmap.createBitmap(mWidth, mHeight, config);
-    }
+      toTransform.getConfig() != null ? toTransform.getConfig() : Bitmap.Config.ARGB_8888;
+    Bitmap bitmap = pool.get(width, height, config);

-    float scaleX = (float) mWidth / source.getWidth();
-    float scaleY = (float) mHeight / source.getHeight();
+    bitmap.setHasAlpha(true);
+
+    float scaleX = (float) width / toTransform.getWidth();
+    float scaleY = (float) height / toTransform.getHeight();
    float scale = Math.max(scaleX, scaleY);

-    float scaledWidth = scale * source.getWidth();
-    float scaledHeight = scale * source.getHeight();
-    float left = (mWidth - scaledWidth) / 2;
+    float scaledWidth = scale * toTransform.getWidth();
+    float scaledHeight = scale * toTransform.getHeight();
+    float left = (width - scaledWidth) / 2;
    float top = getTop(scaledHeight);
    RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);

+    setCanvasBitmapDensity(toTransform, bitmap);
+
    Canvas canvas = new Canvas(bitmap);
-    canvas.drawBitmap(source, null, targetRect, null);
+    canvas.drawBitmap(toTransform, null, targetRect, null);

-    return BitmapResource.obtain(bitmap, mBitmapPool);
-  }
-
-  @Override public String getId() {
-    return "CropTransformation(width=" + mWidth + ", height=" + mHeight + ", cropType=" + mCropType
-        + ")";
+    return bitmap;
  }

  private float getTop(float scaledHeight) {
-    switch (mCropType) {
+    switch (cropType) {
      case TOP:
        return 0;
      case CENTER:
-        return (mHeight - scaledHeight) / 2;
+        return (height - scaledHeight) / 2;
      case BOTTOM:
-        return mHeight - scaledHeight;
+        return height - scaledHeight;
      default:
        return 0;
    }
  }
+
+  @Override
+  public String toString() {
+    return "CropTransformation(width=" + width + ", height=" + height + ", cropType=" + cropType + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof CropTransformation &&
+      ((CropTransformation) o).width == width &&
+      ((CropTransformation) o).height == height &&
+      ((CropTransformation) o).cropType == cropType;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + width * 100000 + height * 1000 + cropType.ordinal() * 10;
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + width + height + cropType).getBytes(CHARSET));
+  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -22,49 +22,58 @@ import android.graphics.Canvas;
 import android.graphics.ColorMatrix;
 import android.graphics.ColorMatrixColorFilter;
 import android.graphics.Paint;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.Transformation;
-import com.bumptech.glide.load.engine.Resource;
+
+import androidx.annotation.NonNull;
+
 import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import com.bumptech.glide.load.resource.bitmap.BitmapResource;

-public class GrayscaleTransformation implements Transformation<Bitmap> {
+import java.security.MessageDigest;

-  private BitmapPool mBitmapPool;
+public class GrayscaleTransformation extends BitmapTransformation {

-  public GrayscaleTransformation(Context context) {
-    this(Glide.get(context).getBitmapPool());
-  }
-
-  public GrayscaleTransformation(BitmapPool pool) {
-    mBitmapPool = pool;
-  }
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.GrayscaleTransformation." + VERSION;

  @Override
-  public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) {
-    Bitmap source = resource.get();
-
-    int width = source.getWidth();
-    int height = source.getHeight();
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {
+    int width = toTransform.getWidth();
+    int height = toTransform.getHeight();

    Bitmap.Config config =
-        source.getConfig() != null ? source.getConfig() : Bitmap.Config.ARGB_8888;
-    Bitmap bitmap = mBitmapPool.get(width, height, config);
-    if (bitmap == null) {
-      bitmap = Bitmap.createBitmap(width, height, config);
-    }
+      toTransform.getConfig() != null ? toTransform.getConfig() : Bitmap.Config.ARGB_8888;
+    Bitmap bitmap = pool.get(width, height, config);
+
+    setCanvasBitmapDensity(toTransform, bitmap);

    Canvas canvas = new Canvas(bitmap);
    ColorMatrix saturation = new ColorMatrix();
    saturation.setSaturation(0f);
    Paint paint = new Paint();
    paint.setColorFilter(new ColorMatrixColorFilter(saturation));
-    canvas.drawBitmap(source, 0, 0, paint);
+    canvas.drawBitmap(toTransform, 0, 0, paint);

-    return BitmapResource.obtain(bitmap, mBitmapPool);
+    return bitmap;
  }

-  @Override public String getId() {
+  @Override
+  public String toString() {
    return "GrayscaleTransformation()";
  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof GrayscaleTransformation;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode();
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID).getBytes(CHARSET));
+  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/MaskTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/MaskTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -23,63 +23,74 @@ import android.graphics.Paint;
 import android.graphics.PorterDuff;
 import android.graphics.PorterDuffXfermode;
 import android.graphics.drawable.Drawable;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.Transformation;
-import com.bumptech.glide.load.engine.Resource;
+
+import androidx.annotation.NonNull;
+
 import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import com.bumptech.glide.load.resource.bitmap.BitmapResource;
-import jp.wasabeef.glide.transformations.internal.Utils;

-public class MaskTransformation implements Transformation<Bitmap> {
+import java.security.MessageDigest;

-  private static Paint mMaskingPaint = new Paint();
-  private Context mContext;
-  private BitmapPool mBitmapPool;
-  private int mMaskId;
+public class MaskTransformation extends BitmapTransformation {
+
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.MaskTransformation." + VERSION;
+
+  private static final Paint paint = new Paint();
+  private final int maskId;

  static {
-    mMaskingPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
+    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
  }

  /**
   * @param maskId If you change the mask file, please also rename the mask file, or Glide will get
-   * the cache with the old mask. Because getId() return the same values if using the
-   * same make file name. If you have a good idea please tell us, thanks.
+   *               the cache with the old mask. Because key() return the same values if using the
+   *               same make file name. If you have a good idea please tell us, thanks.
   */
-  public MaskTransformation(Context context, int maskId) {
-    this(context, Glide.get(context).getBitmapPool(), maskId);
-  }
-
-  public MaskTransformation(Context context, BitmapPool pool, int maskId) {
-    mBitmapPool = pool;
-    mContext = context.getApplicationContext();
-    mMaskId = maskId;
+  public MaskTransformation(int maskId) {
+    this.maskId = maskId;
  }

  @Override
-  public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) {
-    Bitmap source = resource.get();
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {
+    int width = toTransform.getWidth();
+    int height = toTransform.getHeight();

-    int width = source.getWidth();
-    int height = source.getHeight();
+    Bitmap bitmap = pool.get(width, height, Bitmap.Config.ARGB_8888);
+    bitmap.setHasAlpha(true);

-    Bitmap result = mBitmapPool.get(width, height, Bitmap.Config.ARGB_8888);
-    if (result == null) {
-      result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
-    }
+    Drawable mask = context.getDrawable(maskId);

-    Drawable mask = Utils.getMaskDrawable(mContext, mMaskId);
+    setCanvasBitmapDensity(toTransform, bitmap);

-    Canvas canvas = new Canvas(result);
+    Canvas canvas = new Canvas(bitmap);
    mask.setBounds(0, 0, width, height);
    mask.draw(canvas);
-    canvas.drawBitmap(source, 0, 0, mMaskingPaint);
+    canvas.drawBitmap(toTransform, 0, 0, paint);

-    return BitmapResource.obtain(result, mBitmapPool);
+    return bitmap;
  }

-  @Override public String getId() {
-    return "MaskTransformation(maskId=" + mContext.getResources().getResourceEntryName(mMaskId)
-        + ")";
+  @Override
+  public String toString() {
+    return "MaskTransformation(maskId=" + maskId + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof MaskTransformation &&
+      ((MaskTransformation) o).maskId == maskId;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + maskId * 10;
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + maskId).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/RoundedCornersTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/RoundedCornersTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -23,13 +23,17 @@ import android.graphics.Canvas;
 import android.graphics.Paint;
 import android.graphics.RectF;
 import android.graphics.Shader;
-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;

-public class RoundedCornersTransformation implements Transformation<Bitmap> {
+import androidx.annotation.NonNull;
+
+import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
+
+import java.security.MessageDigest;
+
+public class RoundedCornersTransformation extends BitmapTransformation {
+
+  private static final int VERSION = 1;
+  private static final String ID = "jp.wasabeef.glide.transformations.RoundedCornersTransformation." + VERSION;

  public enum CornerType {
    ALL,
@@ -39,61 +43,48 @@ public class RoundedCornersTransformation implements Transformation<Bitmap> {
    DIAGONAL_FROM_TOP_LEFT, DIAGONAL_FROM_TOP_RIGHT
  }

-  private BitmapPool mBitmapPool;
-  private int mRadius;
-  private int mDiameter;
-  private int mMargin;
-  private CornerType mCornerType;
+  private final int radius;
+  private final int diameter;
+  private final int margin;
+  private final CornerType cornerType;

-  public RoundedCornersTransformation(Context context, int radius, int margin) {
-    this(context, radius, margin, CornerType.ALL);
+  public RoundedCornersTransformation(int radius, int margin) {
+    this(radius, margin, CornerType.ALL);
  }

-  public RoundedCornersTransformation(BitmapPool pool, int radius, int margin) {
-    this(pool, radius, margin, CornerType.ALL);
-  }
-
-  public RoundedCornersTransformation(Context context, int radius, int margin,
-      CornerType cornerType) {
-    this(Glide.get(context).getBitmapPool(), radius, margin, cornerType);
-  }
-
-  public RoundedCornersTransformation(BitmapPool pool, int radius, int margin,
-      CornerType cornerType) {
-    mBitmapPool = pool;
-    mRadius = radius;
-    mDiameter = mRadius * 2;
-    mMargin = margin;
-    mCornerType = cornerType;
+  public RoundedCornersTransformation(int radius, int margin, CornerType cornerType) {
+    this.radius = radius;
+    this.diameter = this.radius * 2;
+    this.margin = margin;
+    this.cornerType = cornerType;
  }

  @Override
-  public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) {
-    Bitmap source = resource.get();
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {
+    int width = toTransform.getWidth();
+    int height = toTransform.getHeight();

-    int width = source.getWidth();
-    int height = source.getHeight();
+    Bitmap bitmap = pool.get(width, height, Bitmap.Config.ARGB_8888);
+    bitmap.setHasAlpha(true);

-    Bitmap bitmap = mBitmapPool.get(width, height, Bitmap.Config.ARGB_8888);
-    if (bitmap == null) {
-      bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
-    }
+    setCanvasBitmapDensity(toTransform, bitmap);

    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();
    paint.setAntiAlias(true);
-    paint.setShader(new BitmapShader(source, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP));
+    paint.setShader(new BitmapShader(toTransform, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP));
    drawRoundRect(canvas, paint, width, height);
-    return BitmapResource.obtain(bitmap, mBitmapPool);
+    return bitmap;
  }

  private void drawRoundRect(Canvas canvas, Paint paint, float width, float height) {
-    float right = width - mMargin;
-    float bottom = height - mMargin;
+    float right = width - margin;
+    float bottom = height - margin;

-    switch (mCornerType) {
+    switch (cornerType) {
      case ALL:
-        canvas.drawRoundRect(new RectF(mMargin, mMargin, right, bottom), mRadius, mRadius, paint);
+        canvas.drawRoundRect(new RectF(margin, margin, right, bottom), radius, radius, paint);
        break;
      case TOP_LEFT:
        drawTopLeftRoundRect(canvas, paint, right, bottom);
@@ -138,118 +129,135 @@ public class RoundedCornersTransformation implements Transformation<Bitmap> {
        drawDiagonalFromTopRightRoundRect(canvas, paint, right, bottom);
        break;
      default:
-        canvas.drawRoundRect(new RectF(mMargin, mMargin, right, bottom), mRadius, mRadius, paint);
+        canvas.drawRoundRect(new RectF(margin, margin, right, bottom), radius, radius, paint);
        break;
    }
  }

  private void drawTopLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, mMargin + mDiameter),
-        mRadius, mRadius, paint);
-    canvas.drawRect(new RectF(mMargin, mMargin + mRadius, mMargin + mRadius, bottom), paint);
-    canvas.drawRect(new RectF(mMargin + mRadius, mMargin, right, bottom), paint);
+    canvas.drawRoundRect(new RectF(margin, margin, margin + diameter, margin + diameter), radius,
+      radius, paint);
+    canvas.drawRect(new RectF(margin, margin + radius, margin + radius, bottom), paint);
+    canvas.drawRect(new RectF(margin + radius, margin, right, bottom), paint);
  }

  private void drawTopRightRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, mMargin + mDiameter), mRadius,
-        mRadius, paint);
-    canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom), paint);
-    canvas.drawRect(new RectF(right - mRadius, mMargin + mRadius, right, bottom), paint);
+    canvas.drawRoundRect(new RectF(right - diameter, margin, right, margin + diameter), radius,
+      radius, paint);
+    canvas.drawRect(new RectF(margin, margin, right - radius, bottom), paint);
+    canvas.drawRect(new RectF(right - radius, margin + radius, right, bottom), paint);
  }

  private void drawBottomLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, mMargin + mDiameter, bottom),
-        mRadius, mRadius, paint);
-    canvas.drawRect(new RectF(mMargin, mMargin, mMargin + mDiameter, bottom - mRadius), paint);
-    canvas.drawRect(new RectF(mMargin + mRadius, mMargin, right, bottom), paint);
+    canvas.drawRoundRect(new RectF(margin, bottom - diameter, margin + diameter, bottom), radius,
+      radius, paint);
+    canvas.drawRect(new RectF(margin, margin, margin + diameter, bottom - radius), paint);
+    canvas.drawRect(new RectF(margin + radius, margin, right, bottom), paint);
  }

  private void drawBottomRightRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(right - mDiameter, bottom - mDiameter, right, bottom), mRadius,
-        mRadius, paint);
-    canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom), paint);
-    canvas.drawRect(new RectF(right - mRadius, mMargin, right, bottom - mRadius), paint);
+    canvas.drawRoundRect(new RectF(right - diameter, bottom - diameter, right, bottom), radius,
+      radius, paint);
+    canvas.drawRect(new RectF(margin, margin, right - radius, bottom), paint);
+    canvas.drawRect(new RectF(right - radius, margin, right, bottom - radius), paint);
  }

  private void drawTopRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, mMargin, right, mMargin + mDiameter), mRadius, mRadius,
-        paint);
-    canvas.drawRect(new RectF(mMargin, mMargin + mRadius, right, bottom), paint);
+    canvas.drawRoundRect(new RectF(margin, margin, right, margin + diameter), radius, radius,
+      paint);
+    canvas.drawRect(new RectF(margin, margin + radius, right, bottom), paint);
  }

  private void drawBottomRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, right, bottom), mRadius, mRadius,
-        paint);
-    canvas.drawRect(new RectF(mMargin, mMargin, right, bottom - mRadius), paint);
+    canvas.drawRoundRect(new RectF(margin, bottom - diameter, right, bottom), radius, radius,
+      paint);
+    canvas.drawRect(new RectF(margin, margin, right, bottom - radius), paint);
  }

  private void drawLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, bottom), mRadius, mRadius,
-        paint);
-    canvas.drawRect(new RectF(mMargin + mRadius, mMargin, right, bottom), paint);
+    canvas.drawRoundRect(new RectF(margin, margin, margin + diameter, bottom), radius, radius,
+      paint);
+    canvas.drawRect(new RectF(margin + radius, margin, right, bottom), paint);
  }

  private void drawRightRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, bottom), mRadius, mRadius,
-        paint);
-    canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom), paint);
+    canvas.drawRoundRect(new RectF(right - diameter, margin, right, bottom), radius, radius, paint);
+    canvas.drawRect(new RectF(margin, margin, right - radius, bottom), paint);
  }

  private void drawOtherTopLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, right, bottom), mRadius, mRadius,
-        paint);
-    canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, bottom), mRadius, mRadius,
-        paint);
-    canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom - mRadius), paint);
+    canvas.drawRoundRect(new RectF(margin, bottom - diameter, right, bottom), radius, radius,
+      paint);
+    canvas.drawRoundRect(new RectF(right - diameter, margin, right, bottom), radius, radius, paint);
+    canvas.drawRect(new RectF(margin, margin, right - radius, bottom - radius), paint);
  }

  private void drawOtherTopRightRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, bottom), mRadius, mRadius,
-        paint);
-    canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, right, bottom), mRadius, mRadius,
-        paint);
-    canvas.drawRect(new RectF(mMargin + mRadius, mMargin, right, bottom - mRadius), paint);
+    canvas.drawRoundRect(new RectF(margin, margin, margin + diameter, bottom), radius, radius,
+      paint);
+    canvas.drawRoundRect(new RectF(margin, bottom - diameter, right, bottom), radius, radius,
+      paint);
+    canvas.drawRect(new RectF(margin + radius, margin, right, bottom - radius), paint);
  }

  private void drawOtherBottomLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, mMargin, right, mMargin + mDiameter), mRadius, mRadius,
-        paint);
-    canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, bottom), mRadius, mRadius,
-        paint);
-    canvas.drawRect(new RectF(mMargin, mMargin + mRadius, right - mRadius, bottom), paint);
+    canvas.drawRoundRect(new RectF(margin, margin, right, margin + diameter), radius, radius,
+      paint);
+    canvas.drawRoundRect(new RectF(right - diameter, margin, right, bottom), radius, radius, paint);
+    canvas.drawRect(new RectF(margin, margin + radius, right - radius, bottom), paint);
  }

  private void drawOtherBottomRightRoundRect(Canvas canvas, Paint paint, float right,
-      float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, mMargin, right, mMargin + mDiameter), mRadius, mRadius,
-        paint);
-    canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, bottom), mRadius, mRadius,
-        paint);
-    canvas.drawRect(new RectF(mMargin + mRadius, mMargin + mRadius, right, bottom), paint);
+                                             float bottom) {
+    canvas.drawRoundRect(new RectF(margin, margin, right, margin + diameter), radius, radius,
+      paint);
+    canvas.drawRoundRect(new RectF(margin, margin, margin + diameter, bottom), radius, radius,
+      paint);
+    canvas.drawRect(new RectF(margin + radius, margin + radius, right, bottom), paint);
  }

  private void drawDiagonalFromTopLeftRoundRect(Canvas canvas, Paint paint, float right,
-      float bottom) {
-    canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, mMargin + mDiameter),
-        mRadius, mRadius, paint);
-    canvas.drawRoundRect(new RectF(right - mDiameter, bottom - mDiameter, right, bottom), mRadius,
-        mRadius, paint);
-    canvas.drawRect(new RectF(mMargin, mMargin + mRadius, right - mDiameter, bottom), paint);
-    canvas.drawRect(new RectF(mMargin + mDiameter, mMargin, right, bottom - mRadius), paint);
+                                                float bottom) {
+    canvas.drawRoundRect(new RectF(margin, margin, margin + diameter, margin + diameter), radius,
+      radius, paint);
+    canvas.drawRoundRect(new RectF(right - diameter, bottom - diameter, right, bottom), radius,
+      radius, paint);
+    canvas.drawRect(new RectF(margin, margin + radius, right - radius, bottom), paint);
+    canvas.drawRect(new RectF(margin + radius, margin, right, bottom - radius), paint);
  }

  private void drawDiagonalFromTopRightRoundRect(Canvas canvas, Paint paint, float right,
-      float bottom) {
-    canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, mMargin + mDiameter), mRadius,
-        mRadius, paint);
-    canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, mMargin + mDiameter, bottom),
-        mRadius, mRadius, paint);
-    canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom - mRadius), paint);
-    canvas.drawRect(new RectF(mMargin + mRadius, mMargin + mRadius, right, bottom), paint);
+                                                 float bottom) {
+    canvas.drawRoundRect(new RectF(right - diameter, margin, right, margin + diameter), radius,
+      radius, paint);
+    canvas.drawRoundRect(new RectF(margin, bottom - diameter, margin + diameter, bottom), radius,
+      radius, paint);
+    canvas.drawRect(new RectF(margin, margin, right - radius, bottom - radius), paint);
+    canvas.drawRect(new RectF(margin + radius, margin + radius, right, bottom), paint);
  }

-  @Override public String getId() {
-    return "RoundedTransformation(radius=" + mRadius + ", margin=" + mMargin + ", diameter="
-        + mDiameter + ", cornerType=" + mCornerType.name() + ")";
+  @Override
+  public String toString() {
+    return "RoundedTransformation(radius=" + radius + ", margin=" + margin + ", diameter="
+      + diameter + ", cornerType=" + cornerType.name() + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof RoundedCornersTransformation &&
+      ((RoundedCornersTransformation) o).radius == radius &&
+      ((RoundedCornersTransformation) o).diameter == diameter &&
+      ((RoundedCornersTransformation) o).margin == margin &&
+      ((RoundedCornersTransformation) o).cornerType == cornerType;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + radius * 10000 + diameter * 1000 + margin * 100 + cornerType.ordinal() * 10;
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + radius + diameter + margin + cornerType).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/BrightnessFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/BrightnessFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,38 +16,52 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import jp.co.cyberagent.android.gpuimage.GPUImageBrightnessFilter;
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageBrightnessFilter;

 /**
 * brightness value ranges from -1.0 to 1.0, with 0.0 as the normal level
 */
 public class BrightnessFilterTransformation extends GPUFilterTransformation {

-  private float mBrightness;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.BrightnessFilterTransformation." + VERSION;

-  public BrightnessFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
+  private final float brightness;
+
+  public BrightnessFilterTransformation() {
+    this(0.0f);
  }

-  public BrightnessFilterTransformation(Context context, BitmapPool pool) {
-    this(context, pool, 0.0f);
-  }
-
-  public BrightnessFilterTransformation(Context context, float brightness) {
-    this(context, Glide.get(context).getBitmapPool(), brightness);
-  }
-
-  public BrightnessFilterTransformation(Context context, BitmapPool pool, float brightness) {
-    super(context, pool, new GPUImageBrightnessFilter());
-    mBrightness = brightness;
+  public BrightnessFilterTransformation(float brightness) {
+    super(new GPUImageBrightnessFilter());
+    this.brightness = brightness;
    GPUImageBrightnessFilter filter = getFilter();
-    filter.setBrightness(mBrightness);
+    filter.setBrightness(this.brightness);
  }

-  @Override public String getId() {
-    return "BrightnessFilterTransformation(brightness=" + mBrightness + ")";
+  @Override
+  public String toString() {
+    return "BrightnessFilterTransformation(brightness=" + brightness + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof BrightnessFilterTransformation &&
+      ((BrightnessFilterTransformation) o).brightness == brightness;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + (int) ((brightness + 1.0f) * 10);
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + brightness).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/ContrastFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/ContrastFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,38 +16,51 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import jp.co.cyberagent.android.gpuimage.GPUImageContrastFilter;
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageContrastFilter;

 /**
 * contrast value ranges from 0.0 to 4.0, with 1.0 as the normal level
 */
 public class ContrastFilterTransformation extends GPUFilterTransformation {

-  private float mContrast;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.ContrastFilterTransformation." + VERSION;

-  public ContrastFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
+  private final float contrast;
+
+  public ContrastFilterTransformation() {
+    this(1.0f);
  }

-  public ContrastFilterTransformation(Context context, BitmapPool pool) {
-    this(context, pool, 1.0f);
-  }
-
-  public ContrastFilterTransformation(Context context, float contrast) {
-    this(context, Glide.get(context).getBitmapPool(), contrast);
-  }
-
-  public ContrastFilterTransformation(Context context, BitmapPool pool, float contrast) {
-    super(context, pool, new GPUImageContrastFilter());
-    mContrast = contrast;
+  public ContrastFilterTransformation(float contrast) {
+    super(new GPUImageContrastFilter());
+    this.contrast = contrast;
    GPUImageContrastFilter filter = getFilter();
-    filter.setContrast(mContrast);
+    filter.setContrast(this.contrast);
  }

-  @Override public String getId() {
-    return "ContrastFilterTransformation(contrast=" + mContrast + ")";
+  @Override
+  public String toString() {
+    return "ContrastFilterTransformation(contrast=" + contrast + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof ContrastFilterTransformation;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + (int) (contrast * 10);
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + contrast).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/GPUFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/GPUFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -18,48 +18,62 @@ package jp.wasabeef.glide.transformations.gpu;

 import android.content.Context;
 import android.graphics.Bitmap;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.Transformation;
-import com.bumptech.glide.load.engine.Resource;
+
+import androidx.annotation.NonNull;
+
 import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import com.bumptech.glide.load.resource.bitmap.BitmapResource;
+
+import java.security.MessageDigest;
+
 import jp.co.cyberagent.android.gpuimage.GPUImage;
-import jp.co.cyberagent.android.gpuimage.GPUImageFilter;
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageFilter;
+import jp.wasabeef.glide.transformations.BitmapTransformation;

-public class GPUFilterTransformation implements Transformation<Bitmap> {
+public class GPUFilterTransformation extends BitmapTransformation {

-  private Context mContext;
-  private BitmapPool mBitmapPool;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.GPUFilterTransformation." + VERSION;
+  private static final byte[] ID_BYTES = ID.getBytes(CHARSET);

-  private GPUImageFilter mFilter;
+  private final GPUImageFilter gpuImageFilter;

-  public GPUFilterTransformation(Context context, GPUImageFilter filter) {
-    this(context, Glide.get(context).getBitmapPool(), filter);
-  }
-
-  public GPUFilterTransformation(Context context, BitmapPool pool, GPUImageFilter filter) {
-    mContext = context.getApplicationContext();
-    mBitmapPool = pool;
-    mFilter = filter;
+  public GPUFilterTransformation(GPUImageFilter filter) {
+    this.gpuImageFilter = filter;
  }

  @Override
-  public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) {
-    Bitmap source = resource.get();
-    GPUImage gpuImage = new GPUImage(mContext);
-    gpuImage.setImage(source);
-    gpuImage.setFilter(mFilter);
+  protected Bitmap transform(@NonNull Context context, @NonNull BitmapPool pool,
+                             @NonNull Bitmap toTransform, int outWidth, int outHeight) {
+    GPUImage gpuImage = new GPUImage(context);
+    gpuImage.setImage(toTransform);
+    gpuImage.setFilter(gpuImageFilter);

-    Bitmap bitmap = gpuImage.getBitmapWithFilterApplied();
-
-    return BitmapResource.obtain(bitmap, mBitmapPool);
+    return gpuImage.getBitmapWithFilterApplied();
  }

-  @Override public String getId() {
+  @Override
+  public String toString() {
    return getClass().getSimpleName();
  }

-  @SuppressWarnings("unchecked") public <T> T getFilter() {
-    return (T) mFilter;
+  @SuppressWarnings("unchecked")
+  public <T> T getFilter() {
+    return (T) gpuImageFilter;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof GPUFilterTransformation;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode();
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update(ID_BYTES);
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/InvertFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/InvertFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,25 +16,42 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import jp.co.cyberagent.android.gpuimage.GPUImageColorInvertFilter;
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageColorInvertFilter;

 /**
 * Invert all the colors in the image.
 */
 public class InvertFilterTransformation extends GPUFilterTransformation {

-  public InvertFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.InvertFilterTransformation." + VERSION;
+
+  public InvertFilterTransformation() {
+    super(new GPUImageColorInvertFilter());
  }

-  public InvertFilterTransformation(Context context, BitmapPool pool) {
-    super(context, pool, new GPUImageColorInvertFilter());
-  }
-
-  @Override public String getId() {
+  @Override
+  public String toString() {
    return "InvertFilterTransformation()";
  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof InvertFilterTransformation;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode();
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID).getBytes(CHARSET));
+  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/KuwaharaFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/KuwaharaFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,41 +16,54 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import jp.co.cyberagent.android.gpuimage.GPUImageKuwaharaFilter;
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageKuwaharaFilter;

 /**
 * Kuwahara all the colors in the image.
- *
+ * <p>
 * The radius to sample from when creating the brush-stroke effect, with a default of 25.
 * The larger the radius, the slower the filter.
 */
 public class KuwaharaFilterTransformation extends GPUFilterTransformation {

-  private int mRadius;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.KuwaharaFilterTransformation." + VERSION;

-  public KuwaharaFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
+  private final int radius;
+
+  public KuwaharaFilterTransformation() {
+    this(25);
  }

-  public KuwaharaFilterTransformation(Context context, BitmapPool pool) {
-    this(context, pool, 25);
-  }
-
-  public KuwaharaFilterTransformation(Context context, int radius) {
-    this(context, Glide.get(context).getBitmapPool(), radius);
-  }
-
-  public KuwaharaFilterTransformation(Context context, BitmapPool pool, int radius) {
-    super(context, pool, new GPUImageKuwaharaFilter());
-    mRadius = radius;
+  public KuwaharaFilterTransformation(int radius) {
+    super(new GPUImageKuwaharaFilter());
+    this.radius = radius;
    GPUImageKuwaharaFilter filter = getFilter();
-    filter.setRadius(mRadius);
+    filter.setRadius(this.radius);
  }

-  @Override public String getId() {
-    return "KuwaharaFilterTransformation(radius=" + mRadius + ")";
+  @Override
+  public String toString() {
+    return "KuwaharaFilterTransformation(radius=" + radius + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof KuwaharaFilterTransformation;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + radius * 10;
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + radius).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/PixelationFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/PixelationFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,40 +16,53 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import jp.co.cyberagent.android.gpuimage.GPUImagePixelationFilter;
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImagePixelationFilter;

 /**
 * Applies a Pixelation effect to the image.
- *
+ * <p>
 * The pixel with a default of 10.0.
 */
 public class PixelationFilterTransformation extends GPUFilterTransformation {

-  private float mPixel;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.PixelationFilterTransformation." + VERSION;

-  public PixelationFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
+  private final float pixel;
+
+  public PixelationFilterTransformation() {
+    this(10f);
  }

-  public PixelationFilterTransformation(Context context, BitmapPool pool) {
-    this(context, pool, 10f);
-  }
-
-  public PixelationFilterTransformation(Context context, float pixel) {
-    this(context, Glide.get(context).getBitmapPool(), pixel);
-  }
-
-  public PixelationFilterTransformation(Context context, BitmapPool pool, float pixel) {
-    super(context, pool, new GPUImagePixelationFilter());
-    mPixel = pixel;
+  public PixelationFilterTransformation(float pixel) {
+    super(new GPUImagePixelationFilter());
+    this.pixel = pixel;
    GPUImagePixelationFilter filter = getFilter();
-    filter.setPixel(mPixel);
+    filter.setPixel(this.pixel);
  }

-  @Override public String getId() {
-    return "PixelationFilterTransformation(pixel=" + mPixel + ")";
+  @Override
+  public String toString() {
+    return "PixelationFilterTransformation(pixel=" + pixel + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof PixelationFilterTransformation;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + (int) (pixel * 10);
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + pixel).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/SepiaFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/SepiaFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,40 +16,53 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import jp.co.cyberagent.android.gpuimage.GPUImageSepiaFilter;
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageSepiaToneFilter;

 /**
 * Applies a simple sepia effect.
- *
+ * <p>
 * The intensity with a default of 1.0.
 */
 public class SepiaFilterTransformation extends GPUFilterTransformation {

-  private float mIntensity;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.SepiaFilterTransformation." + VERSION;

-  public SepiaFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
+  private final float intensity;
+
+  public SepiaFilterTransformation() {
+    this(1.0f);
  }

-  public SepiaFilterTransformation(Context context, BitmapPool pool) {
-    this(context, pool, 1.0f);
+  public SepiaFilterTransformation(float intensity) {
+    super(new GPUImageSepiaToneFilter());
+    this.intensity = intensity;
+    GPUImageSepiaToneFilter filter = getFilter();
+    filter.setIntensity(this.intensity);
  }

-  public SepiaFilterTransformation(Context context, float intensity) {
-    this(context, Glide.get(context).getBitmapPool(), intensity);
+  @Override
+  public String toString() {
+    return "SepiaFilterTransformation(intensity=" + intensity + ")";
  }

-  public SepiaFilterTransformation(Context context, BitmapPool pool, float intensity) {
-    super(context, pool, new GPUImageSepiaFilter());
-    mIntensity = intensity;
-    GPUImageSepiaFilter filter = getFilter();
-    filter.setIntensity(mIntensity);
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof SepiaFilterTransformation;
  }

-  @Override public String getId() {
-    return "SepiaFilterTransformation(intensity=" + mIntensity + ")";
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + (int) (intensity * 10);
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + intensity).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/SketchFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/SketchFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,22 +16,39 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import jp.co.cyberagent.android.gpuimage.GPUImageSketchFilter;
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageSketchFilter;

 public class SketchFilterTransformation extends GPUFilterTransformation {

-  public SketchFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.SketchFilterTransformation." + VERSION;
+
+  public SketchFilterTransformation() {
+    super(new GPUImageSketchFilter());
  }

-  public SketchFilterTransformation(Context context, BitmapPool pool) {
-    super(context, pool, new GPUImageSketchFilter());
-  }
-
-  @Override public String getId() {
+  @Override
+  public String toString() {
    return "SketchFilterTransformation()";
  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof SketchFilterTransformation;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode();
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID).getBytes(CHARSET));
+  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/SwirlFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/SwirlFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,52 +16,68 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
 import android.graphics.PointF;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import jp.co.cyberagent.android.gpuimage.GPUImageSwirlFilter;
+
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageSwirlFilter;

 /**
 * Creates a swirl distortion on the image.
 */
 public class SwirlFilterTransformation extends GPUFilterTransformation {

-  private float mRadius;
-  private float mAngle;
-  private PointF mCenter;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.SwirlFilterTransformation." + VERSION;

-  public SwirlFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
-  }
+  private final float radius;
+  private final float angle;
+  private final PointF center;

-  public SwirlFilterTransformation(Context context, BitmapPool pool) {
-    this(context, pool, .5f, 1.0f, new PointF(0.5f, 0.5f));
-  }
-
-  public SwirlFilterTransformation(Context context, float radius, float angle, PointF center) {
-    this(context, Glide.get(context).getBitmapPool(), radius, angle, center);
+  public SwirlFilterTransformation() {
+    this(.5f, 1.0f, new PointF(0.5f, 0.5f));
  }

  /**
   * @param radius from 0.0 to 1.0, default 0.5
-   * @param angle minimum 0.0, default 1.0
+   * @param angle  minimum 0.0, default 1.0
   * @param center default (0.5, 0.5)
   */
-  public SwirlFilterTransformation(Context context, BitmapPool pool, float radius, float angle,
-      PointF center) {
-    super(context, pool, new GPUImageSwirlFilter());
-    mRadius = radius;
-    mAngle = angle;
-    mCenter = center;
+  public SwirlFilterTransformation(float radius, float angle, PointF center) {
+    super(new GPUImageSwirlFilter());
+    this.radius = radius;
+    this.angle = angle;
+    this.center = center;
    GPUImageSwirlFilter filter = getFilter();
-    filter.setRadius(mRadius);
-    filter.setAngle(mAngle);
-    filter.setCenter(mCenter);
+    filter.setRadius(this.radius);
+    filter.setAngle(this.angle);
+    filter.setCenter(this.center);
  }

-  @Override public String getId() {
-    return "SwirlFilterTransformation(radius=" + mRadius +
-        ",angle=" + mAngle + ",center=" + mCenter.toString() + ")";
+  @Override
+  public String toString() {
+    return "SwirlFilterTransformation(radius=" + radius + ",angle=" + angle + ",center="
+      + center.toString() + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof SwirlFilterTransformation &&
+      ((SwirlFilterTransformation) o).radius == radius &&
+      ((SwirlFilterTransformation) o).angle == radius &&
+      ((SwirlFilterTransformation) o).center.equals(center.x, center.y);
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + (int) (radius * 1000) + (int) (angle * 10) + center.hashCode();
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + radius + angle + center.hashCode()).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/ToonFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/ToonFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,10 +16,11 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
-import jp.co.cyberagent.android.gpuimage.GPUImageToonFilter;
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageToonFilter;

 /**
 * The threshold at which to apply the edges, default of 0.2.
@@ -28,33 +29,46 @@ import jp.co.cyberagent.android.gpuimage.GPUImageToonFilter;
 */
 public class ToonFilterTransformation extends GPUFilterTransformation {

-  private float mThreshold;
-  private float mQuantizationLevels;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.ToonFilterTransformation." + VERSION;

-  public ToonFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
+  private final float threshold;
+  private final float quantizationLevels;
+
+  public ToonFilterTransformation() {
+    this(.2f, 10.0f);
  }

-  public ToonFilterTransformation(Context context, BitmapPool pool) {
-    this(context, pool, .2f, 10.0f);
-  }
-
-  public ToonFilterTransformation(Context context, float threshold, float quantizationLevels) {
-    this(context, Glide.get(context).getBitmapPool(), threshold, quantizationLevels);
-  }
-
-  public ToonFilterTransformation(Context context, BitmapPool pool, float threshold,
-      float quantizationLevels) {
-    super(context, pool, new GPUImageToonFilter());
-    mThreshold = threshold;
-    mQuantizationLevels = quantizationLevels;
+  public ToonFilterTransformation(float threshold, float quantizationLevels) {
+    super(new GPUImageToonFilter());
+    this.threshold = threshold;
+    this.quantizationLevels = quantizationLevels;
    GPUImageToonFilter filter = getFilter();
-    filter.setThreshold(mThreshold);
-    filter.setQuantizationLevels(mQuantizationLevels);
+    filter.setThreshold(this.threshold);
+    filter.setQuantizationLevels(this.quantizationLevels);
  }

-  @Override public String getId() {
-    return "ToonFilterTransformation(threshold=" + mThreshold +
-        ",quantizationLevels=" + mQuantizationLevels + ")";
+  @Override
+  public String toString() {
+    return "ToonFilterTransformation(threshold=" + threshold + ",quantizationLevels="
+      + quantizationLevels + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof ToonFilterTransformation &&
+      ((ToonFilterTransformation) o).threshold == threshold &&
+      ((ToonFilterTransformation) o).quantizationLevels == quantizationLevels;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + (int) (threshold * 1000) + (int) (quantizationLevels * 10);
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + threshold + quantizationLevels).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/VignetteFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/gpu/VignetteFilterTransformation.java
@@ -1,14 +1,14 @@
 package jp.wasabeef.glide.transformations.gpu;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -16,12 +16,14 @@ package jp.wasabeef.glide.transformations.gpu;
 * limitations under the License.
 */

-import android.content.Context;
 import android.graphics.PointF;
-import com.bumptech.glide.Glide;
-import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
+
+import androidx.annotation.NonNull;
+
+import java.security.MessageDigest;
 import java.util.Arrays;
-import jp.co.cyberagent.android.gpuimage.GPUImageVignetteFilter;
+
+import jp.co.cyberagent.android.gpuimage.filter.GPUImageVignetteFilter;

 /**
 * Performs a vignetting effect, fading out the image at the edges
@@ -30,41 +32,55 @@ import jp.co.cyberagent.android.gpuimage.GPUImageVignetteFilter;
 */
 public class VignetteFilterTransformation extends GPUFilterTransformation {

-  private PointF mCenter;
-  private float[] mVignetteColor;
-  private float mVignetteStart;
-  private float mVignetteEnd;
+  private static final int VERSION = 1;
+  private static final String ID =
+    "jp.wasabeef.glide.transformations.gpu.VignetteFilterTransformation." + VERSION;

-  public VignetteFilterTransformation(Context context) {
-    this(context, Glide.get(context).getBitmapPool());
+  private final PointF center;
+  private final float[] vignetteColor;
+  private final float vignetteStart;
+  private final float vignetteEnd;
+
+  public VignetteFilterTransformation() {
+    this(new PointF(0.5f, 0.5f), new float[]{0.0f, 0.0f, 0.0f}, 0.0f, 0.75f);
  }

-  public VignetteFilterTransformation(Context context, BitmapPool pool) {
-    this(context, pool, new PointF(0.5f, 0.5f), new float[] { 0.0f, 0.0f, 0.0f }, 0.0f, 0.75f);
-  }
-
-  public VignetteFilterTransformation(Context context, PointF center, float[] color, float start,
-      float end) {
-    this(context, Glide.get(context).getBitmapPool(), center, color, start, end);
-  }
-
-  public VignetteFilterTransformation(Context context, BitmapPool pool, PointF center,
-      float[] color, float start, float end) {
-    super(context, pool, new GPUImageVignetteFilter());
-    mCenter = center;
-    mVignetteColor = color;
-    mVignetteStart = start;
-    mVignetteEnd = end;
+  public VignetteFilterTransformation(PointF center, float[] color, float start, float end) {
+    super(new GPUImageVignetteFilter());
+    this.center = center;
+    vignetteColor = color;
+    vignetteStart = start;
+    vignetteEnd = end;
    GPUImageVignetteFilter filter = getFilter();
-    filter.setVignetteCenter(mCenter);
-    filter.setVignetteColor(mVignetteColor);
-    filter.setVignetteStart(mVignetteStart);
-    filter.setVignetteEnd(mVignetteEnd);
+    filter.setVignetteCenter(this.center);
+    filter.setVignetteColor(vignetteColor);
+    filter.setVignetteStart(vignetteStart);
+    filter.setVignetteEnd(vignetteEnd);
  }

-  @Override public String getId() {
-    return "VignetteFilterTransformation(center=" + mCenter.toString() +
-        ",color=" + Arrays.toString(mVignetteColor) +
-        ",start=" + mVignetteStart + ",end=" + mVignetteEnd + ")";
+  @Override
+  public String toString() {
+    return "VignetteFilterTransformation(center=" + center.toString() + ",color=" + Arrays.toString(
+      vignetteColor) + ",start=" + vignetteStart + ",end=" + vignetteEnd + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    return o instanceof VignetteFilterTransformation &&
+      ((VignetteFilterTransformation) o).center.equals(center.x, center.y) &&
+      Arrays.equals(((VignetteFilterTransformation) o).vignetteColor, vignetteColor) &&
+      ((VignetteFilterTransformation) o).vignetteStart == vignetteStart &&
+      ((VignetteFilterTransformation) o).vignetteEnd == vignetteEnd;
+  }
+
+  @Override
+  public int hashCode() {
+    return ID.hashCode() + center.hashCode() + Arrays.hashCode(vignetteColor) +
+      (int) (vignetteStart * 100) + (int) (vignetteEnd * 10);
+  }
+
+  @Override
+  public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
+    messageDigest.update((ID + center + Arrays.hashCode(vignetteColor) + vignetteStart + vignetteEnd).getBytes(CHARSET));
  }
 }
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/internal/FastBlur.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/internal/FastBlur.java
@@ -3,14 +3,14 @@ package jp.wasabeef.glide.transformations.internal;
 import android.graphics.Bitmap;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -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
@@ -72,15 +72,15 @@ public class FastBlur {
    int wh = w * h;
    int div = radius + radius + 1;

-    int r[] = new int[wh];
-    int g[] = new int[wh];
-    int b[] = new int[wh];
+    int[] r = new int[wh];
+    int[] g = new int[wh];
+    int[] b = new int[wh];
    int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;
-    int vmin[] = new int[Math.max(w, h)];
+    int[] vmin = new int[Math.max(w, h)];

    int divsum = (div + 1) >> 1;
    divsum *= divsum;
-    int dv[] = new int[256 * divsum];
+    int[] dv = new int[256 * divsum];
    for (i = 0; i < 256 * divsum; i++) {
      dv[i] = (i / divsum);
    }
@@ -254,4 +254,4 @@ public class FastBlur {

    return (bitmap);
  }
-}
+}
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/internal/RSBlur.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/internal/RSBlur.java
@@ -0,0 +1,69 @@
+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) 2020 Wasabeef
+ * <p>
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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 {
+
+  public static Bitmap blur(Context context, Bitmap bitmap, int radius) throws RSRuntimeException {
+    RenderScript rs = null;
+    Allocation input = null;
+    Allocation output = null;
+    ScriptIntrinsicBlur blur = null;
+    try {
+      rs = RenderScript.create(context);
+      rs.setMessageHandler(new RenderScript.RSMessageHandler());
+      input = Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_NONE,
+        Allocation.USAGE_SCRIPT);
+      output = Allocation.createTyped(rs, input.getType());
+      blur = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
+
+      blur.setInput(input);
+      blur.setRadius(radius);
+      blur.forEach(output);
+      output.copyTo(bitmap);
+    } finally {
+      if (rs != null) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+          RenderScript.releaseAllContexts();
+        } else {
+          rs.destroy();
+        }
+      }
+      if (input != null) {
+        input.destroy();
+      }
+      if (output != null) {
+        output.destroy();
+      }
+      if (blur != null) {
+        blur.destroy();
+      }
+    }
+
+    return bitmap;
+  }
+}
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/internal/Utils.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/internal/Utils.java
@@ -1,18 +1,19 @@
 package jp.wasabeef.glide.transformations.internal;

 import android.content.Context;
+import android.content.res.Resources;
 import android.graphics.drawable.Drawable;
 import android.os.Build;

 /**
- * Copyright (C) 2015 Wasabeef
- *
+ * Copyright (C) 2020 Wasabeef
+ * <p>
 * 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
- *
+ * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
 * 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.
@@ -26,18 +27,7 @@ public final class Utils {
    // Utility class.
  }

-  public static Drawable getMaskDrawable(Context context, int maskId) {
-    Drawable drawable;
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-      drawable = context.getDrawable(maskId);
-    } else {
-      drawable = context.getResources().getDrawable(maskId);
-    }
-
-    if (drawable == null) {
-      throw new IllegalArgumentException("maskId is invalid");
-    }
-
-    return drawable;
+  public static int toDp(int px) {
+    return px * (int) Resources.getSystem().getDisplayMetrics().density;
  }
 }
Author	SHA1	Message	Date
Daichi Furiya	09e62054e9	Release 4.3.0 (#184 ) * refactor: clean code * update: gpuimage * update: min sdk to 21 * refactor: remove support rs * update: gradle plugin * style: fix xml format * update: update gradle properties * release 4.2.1 * update: samples * update: sample * update:changelog * remove comments * change release version	2020-09-27 07:37:31 +09:00
Daichi Furiya	4b4f6b1ad4	Update build.gradle	2020-09-24 18:49:48 +09:00
Daichi Furiya	074b6eef45	Release 4.2.0 (#183 ) * format * update copyright * remove -android.namespacedRClass * update compile&target sdk version to 30 * update dependencies * update gitignore * update samples dependencies * update signinconfig * bump up to 4.2.0 * bump up to 4.2.0	2020-09-15 03:51:31 +09:00
bigeye-wg	fa04c1b3c9	fixed drawDiagonalFromTopLeftRoundRect (#178 )	2020-09-15 02:45:35 +09:00
Daichi Furiya	056adc6451	Create FUNDING.yml	2020-07-28 23:24:40 +09:00
Jason Cooke	1c925c932e	docs: fix typo (#166 )	2020-01-30 15:52:25 +09:00
Daichi Furiya	b08325ec70	Update README.md	2019-08-15 17:07:31 +09:00
wasabeef	e9acc52d9e	add RoundedCourners to sample	2019-08-15 16:24:26 +09:00
wasabeef	ce14f7bdf1	update androidx libraries	2019-08-15 15:10:55 +09:00
Daichi Furiya	0b9311813a	4.1.0 (#163 ) * update gradle wrapper * update Copyright * update kotlin version * update glide * update Copyright * refactor to be simply * add CircleCropWithBorder to sample * code cleanup * add px to dp convert * update gradle * update idea settings * bump up to 4.1.0 * update readme	2019-08-15 13:47:18 +09:00
VeCharm	e16eda6af1	setCanvasBitmapDensity (#147 )	2019-08-15 12:05:57 +09:00
Terence	783d69c579	Add crop circle with border transformation (#136 )	2019-08-15 12:04:05 +09:00
Devansh Maurya	ec0e655f0a	Update Readme.md (#162 ) Added RequestOptions as a prefix to bitmapTransform() function call as it is difficult for many newcomers to understand from where to get bitmapTransform() function	2019-08-15 12:01:32 +09:00
wasabeef	9d4d7990d3	bump up to 4.0.1	2018-11-20 10:54:25 +09:00
wasabeef	d67f715c65	add consumerProguardFiles	2018-11-20 10:52:45 +09:00
wasabeef	f09f073442	update gradle plugin	2018-11-20 10:52:26 +09:00
Daichi Furiya	2e2846d354	refactor support rs (#142 )	2018-11-16 18:01:01 +09:00
Daichi Furiya	3aa8e53c6a	[WIP] Migrate to AndroidX (#141 ) Migrate to AndroidX	2018-11-16 16:19:42 +09:00
Daichi Furiya	4818373fc5	v3.3.0 (#127 ) * fixed #119 * update gradle files * rename * add sample of SupportRSBlur * update libs * bump up 3.3.0	2018-04-23 05:08:05 +09:00
Mike Fougere	8c72ad64b9	Add SupportBlurTransformation which uses RenderScript support library. (#125 ) * Add SupportBlurTransformation which uses RenderScript support library. * Whoops -- forgot to change the imports. * Fix type.	2018-04-23 02:09:21 +09:00
Daichi Furiya	81e72fc553	Deprecated RSBlur (#124 )	2018-04-10 03:05:28 +09:00
Daichi Furiya	0361d97018	Update build.gradle	2018-04-10 01:01:17 +09:00
Daichi Furiya	9b00767304	3.1.1 (#116 ) * update gradle wrapeer * fix proguard settings * update glide * bump up 3.1.1	2018-02-13 16:32:10 +09:00
Frederic Ye	a5f7017f57	Added TV Time as application (#114 )	2018-02-13 15:26:41 +09:00
wasabeef	9e85b0b759	update sample codes	2018-02-01 16:48:27 +09:00
Daichi Furiya	51f7b515fa	For Glide 4.5.0 (#112 )	2018-01-26 17:08:27 +09:00
CrabeMan	43f38cc4b3	Implement equals() and hashCode() methods (#105 ) * Implement equals() and hashCode() methods * Oops: Replace by static final to prevent String class name generation for every call on hashCodes() & updateDiskCacheKey() methods	2018-01-25 17:15:27 +09:00
Daichi Furiya	970afc35fe	Fixed Proguard settings (#88 ) * Issue #86 - Deleted a setting for DexGuard	2017-09-08 17:18:50 -07:00
Daichi Furiya	f6cbe2722d	Support Glide 4.0.0 (#83 )	2017-09-07 00:47:27 -05:00
wasabeef	1264e01f6e	fix format	2017-03-21 11:55:30 -07:00
wasabeef	1a474cdd8c	update gradle wrapper	2017-03-21 11:53:41 -07:00
wasabeef	311bcde37f	Merge branch 'master' of github.com:wasabeef/glide-transformations	2017-03-17 18:35:44 -07:00
wasabeef	945e5a8063	updated icon	2017-03-17 18:35:05 -07:00
Daichi Furiya	30b41fa167	Update README.md	2017-03-17 18:29:47 -07:00
Daichi Furiya	2a720df48d	Update README.md	2017-03-17 17:47:58 -07:00
wasabeef	06db3295a1	updated art	2017-03-17 17:45:28 -07:00
Daichi Furiya	34cc92f7a4	Merge pull request #66 from wasabeef/dev 2.0.2	2017-03-17 17:41:49 -07:00
wasabeef	5715d7a999	bump up 2.0.2	2017-03-17 17:35:48 -07:00
wasabeef	36c0d00ae9	updated libs	2017-03-17 17:35:29 -07:00
wasabeef	a29346e8d2	updated sdks	2017-03-17 17:20:28 -07:00
wasabeef	c3f2ce75a4	updated gradle	2017-03-17 17:19:53 -07:00
wasabeef	4d47793f79	updated copyright	2017-03-17 17:17:37 -07:00
Daichi Furiya	45c2e3bcfe	Merge pull request #45 from timusus/master Additional resource cleanup in RSBlur	2017-03-17 15:27:20 -07:00
Tim Malseed	a139c21d31	Additional resource cleanup in RSBlur When the blur is finished, the input, output, and blur are all destroyed, along with the renderscript instance. This resolves a strictmode 'resource acquired but never released' violation.	2016-06-12 23:55:52 +10:00
Daichi Furiya	c3f09cdd0d	Merge pull request #38 from wasabeef/v2.0.1 V2.0.1	2016-04-21 15:29:01 +09:00
wasabeef	ddd76d4f06	fix layout	2016-04-21 15:27:26 +09:00
wasabeef	f9bca8887d	fix bugs issue #35	2016-04-21 15:23:22 +09:00
wasabeef	592815a6a0	update gradle	2016-04-21 15:22:58 +09:00
wasabeef	f6540b111f	bump up 2.0.1	2016-04-21 15:22:46 +09:00
wasabeef	9bea464afc	format	2016-04-21 15:22:21 +09:00
wasabeef	219b32bbcc	format	2016-04-21 15:18:48 +09:00
Daichi Furiya	4d7190847c	Merge pull request #36 from elevenfive/patch-1 Use correct field prefix	2016-04-19 13:05:36 +09:00
Matthew Zavislak	0d7a93c264	Use correct field prefix	2016-04-15 20:19:29 -07:00
Daichi Furiya	e69f775ddd	Update build.gradle	2016-03-02 23:12:39 +09:00
Daichi Furiya	4b9cf87770	Update gradle-wrapper.properties	2016-03-02 23:11:59 +09:00
Daichi Furiya	cafad91b0b	Update gradle-wrapper.properties	2016-03-02 23:11:43 +09:00
Daichi Furiya	933c3f7989	Merge pull request #31 from wasabeef/goodbye-v8rs Goodbye v8.RenderScript	2016-03-02 23:11:05 +09:00
wasabeef	68bafb0f53	bump up 2.0.0	2016-03-02 23:09:31 +09:00
wasabeef	817b138980	Say v8.RenderScript goodbye	2016-03-02 22:53:34 +09:00