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README.md
1 Android RenderScriptIntrinsic Sample 2 =================================== 3 4 RenderScriptIntrinsic sample that demonstrates how to use RenderScript intrinsics. 5 Creates several RenderScript intrinsics and shows a filtering result with various parameters. 6 Also shows how to extends RedioButton with StateListDrawable. 7 8 Introduction 9 ------------ 10 11 [RenderScript][1] is a framework for running computationally intensive tasks at high performance on Android. RenderScript is 12 primarily oriented for use with data-parallel computation, although serial computationally intensive workloads can 13 benefit as well. 14 15 RenderScript **intrinsics** are built-in functions that perform well-defined operations often seen 16 in image processing. Intrinsics provide extremely high-performance implementations of standard 17 functions with a minimal amount of code. 18 19 This sample shows how to access and use the blur, convolve, and matrix intrinsics: 20 21 ```java 22 mScriptBlur = ScriptIntrinsicBlur.create(mRS, Element.U8_4(mRS)); 23 mScriptConvolve = ScriptIntrinsicConvolve5x5.create(mRS, 24 Element.U8_4(mRS)); 25 mScriptMatrix = ScriptIntrinsicColorMatrix.create(mRS, 26 Element.U8_4(mRS)); 27 ``` 28 29 RenderScript intrinsics will usually be the fastest possible way for a developer to perform these operations. The 30 Android team works closely with our partners to ensure that the intrinsics perform as fast as possible on their 31 architectures often far beyond anything that can be achieved in a general-purpose language. 32 33 [1]: http://developer.android.com/guide/topics/renderscript/compute.html 34 35 Pre-requisites 36 -------------- 37 38 - Android SDK v21 39 - Android Build Tools v21.1.1 40 - Android Support Repository 41 42 Screenshots 43 ------------- 44 45 <img src="screenshots/main.png" height="400" alt="Screenshot"/> 46 47 Getting Started 48 --------------- 49 50 This sample uses the Gradle build system. To build this project, use the 51 "gradlew build" command or use "Import Project" in Android Studio. 52 53 Support 54 ------- 55 56 - Google+ Community: https://plus.google.com/communities/105153134372062985968 57 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 58 59 If you've found an error in this sample, please file an issue: 60 https://github.com/googlesamples/android-RenderScriptIntrinsic 61 62 Patches are encouraged, and may be submitted by forking this project and 63 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 64 65 License 66 ------- 67 68 Copyright 2014 The Android Open Source Project, Inc. 69 70 Licensed to the Apache Software Foundation (ASF) under one or more contributor 71 license agreements. See the NOTICE file distributed with this work for 72 additional information regarding copyright ownership. The ASF licenses this 73 file to you under the Apache License, Version 2.0 (the "License"); you may not 74 use this file except in compliance with the License. You may obtain a copy of 75 the License at 76 77 http://www.apache.org/licenses/LICENSE-2.0 78 79 Unless required by applicable law or agreed to in writing, software 80 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 81 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 82 License for the specific language governing permissions and limitations under 83 the License. 84
