| Android BasicRenderScript Sample | |
| =================================== | |
| This sample demonstrates using RenderScript to perform basic image manipulation. Specifically, it allows users | |
| to dynamically adjust the saturation for an image using a slider. A custom RenderScript kernel performs the saturation | |
| adjustment, running the computation on the device\'s GPU or other compute hardware as deemed appropriate by the system. | |
| Introduction | |
| ------------ | |
| [RenderScript][1] is a framework for running computationally intensive tasks at high performance on Android. RenderScript is | |
| primarily oriented for use with data-parallel computation, although serial computationally intensive workloads can | |
| benefit as well. | |
| The RenderScript runtime will parallelize work across all processors available on a device, such as multi-core CPUs, | |
| GPUs, or DSPs, allowing you to focus on expressing algorithms rather than scheduling work or load balancing. | |
| RenderScript is especially useful for applications performing image processing, computational photography, or computer | |
| vision. | |
| This sample demonstrates the fundamentals of writing a RenderScript compute kernel, and using it to perform basic image | |
| manipulation. In this case, each pixel is transformed based on a liner interpolation between its original | |
| RGB value and it's luminance (black-and-white) value, weighted based on the user's specified saturation target. | |
| [1]: http://developer.android.com/guide/topics/renderscript/compute.html | |
| [2]: http://developer.android.com/reference/renderscript/rs__cl_8rsh.html#a254612a612ff7539b01a1478e03d8697 | |
| Pre-requisites | |
| -------------- | |
| - Android SDK 28 | |
| - Android Build Tools v28.0.3 | |
| - Android Support Repository | |
| Screenshots | |
| ------------- | |
| <img src="screenshots/main.png" height="400" alt="Screenshot"/> | |
| Getting Started | |
| --------------- | |
| This sample uses the Gradle build system. To build this project, use the | |
| "gradlew build" command or use "Import Project" in Android Studio. | |
| Support | |
| ------- | |
| - Google+ Community: https://plus.google.com/communities/105153134372062985968 | |
| - Stack Overflow: http://stackoverflow.com/questions/tagged/android | |
| If you've found an error in this sample, please file an issue: | |
| https://github.com/googlesamples/android-BasicRenderScript | |
| Patches are encouraged, and may be submitted by forking this project and | |
| submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. | |
| License | |
| ------- | |
| Copyright 2019 The Android Open Source Project, Inc. | |
| Licensed to the Apache Software Foundation (ASF) under one or more contributor | |
| license agreements. See the NOTICE file distributed with this work for | |
| additional information regarding copyright ownership. The ASF licenses this | |
| file to you under the Apache License, Version 2.0 (the "License"); you may not | |
| use this file except in compliance with the License. You may obtain a copy of | |
| the License at | |
| http://www.apache.org/licenses/LICENSE-2.0 | |
| Unless required by applicable law or agreed to in writing, software | |
| distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | |
| WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | |
| License for the specific language governing permissions and limitations under | |
| the License. |