1*d353a188SXin Li 2*d353a188SXin LiAndroid BasicRenderScript Sample 3*d353a188SXin Li=================================== 4*d353a188SXin Li 5*d353a188SXin LiThis sample demonstrates using RenderScript to perform basic image manipulation. Specifically, it allows users 6*d353a188SXin Lito dynamically adjust the saturation for an image using a slider. A custom RenderScript kernel performs the saturation 7*d353a188SXin Liadjustment, running the computation on the device\'s GPU or other compute hardware as deemed appropriate by the system. 8*d353a188SXin Li 9*d353a188SXin LiIntroduction 10*d353a188SXin Li------------ 11*d353a188SXin Li 12*d353a188SXin Li[RenderScript][1] is a framework for running computationally intensive tasks at high performance on Android. RenderScript is 13*d353a188SXin Liprimarily oriented for use with data-parallel computation, although serial computationally intensive workloads can 14*d353a188SXin Libenefit as well. 15*d353a188SXin Li 16*d353a188SXin LiThe RenderScript runtime will parallelize work across all processors available on a device, such as multi-core CPUs, 17*d353a188SXin LiGPUs, or DSPs, allowing you to focus on expressing algorithms rather than scheduling work or load balancing. 18*d353a188SXin LiRenderScript is especially useful for applications performing image processing, computational photography, or computer 19*d353a188SXin Livision. 20*d353a188SXin Li 21*d353a188SXin LiThis sample demonstrates the fundamentals of writing a RenderScript compute kernel, and using it to perform basic image 22*d353a188SXin Limanipulation. In this case, each pixel is transformed based on a liner interpolation between its original 23*d353a188SXin LiRGB value and it's luminance (black-and-white) value, weighted based on the user's specified saturation target. 24*d353a188SXin Li 25*d353a188SXin Li[1]: http://developer.android.com/guide/topics/renderscript/compute.html 26*d353a188SXin Li[2]: http://developer.android.com/reference/renderscript/rs__cl_8rsh.html#a254612a612ff7539b01a1478e03d8697 27*d353a188SXin Li 28*d353a188SXin LiPre-requisites 29*d353a188SXin Li-------------- 30*d353a188SXin Li 31*d353a188SXin Li- Android SDK 27 32*d353a188SXin Li- Android Build Tools v27.0.2 33*d353a188SXin Li- Android Support Repository 34*d353a188SXin Li 35*d353a188SXin LiScreenshots 36*d353a188SXin Li------------- 37*d353a188SXin Li 38*d353a188SXin Li<img src="screenshots/main.png" height="400" alt="Screenshot"/> 39*d353a188SXin Li 40*d353a188SXin LiGetting Started 41*d353a188SXin Li--------------- 42*d353a188SXin Li 43*d353a188SXin LiThis sample uses the Gradle build system. To build this project, use the 44*d353a188SXin Li"gradlew build" command or use "Import Project" in Android Studio. 45*d353a188SXin Li 46*d353a188SXin LiSupport 47*d353a188SXin Li------- 48*d353a188SXin Li 49*d353a188SXin Li- Google+ Community: https://plus.google.com/communities/105153134372062985968 50*d353a188SXin Li- Stack Overflow: http://stackoverflow.com/questions/tagged/android 51*d353a188SXin Li 52*d353a188SXin LiIf you've found an error in this sample, please file an issue: 53*d353a188SXin Lihttps://github.com/googlesamples/android-BasicRenderScript 54*d353a188SXin Li 55*d353a188SXin LiPatches are encouraged, and may be submitted by forking this project and 56*d353a188SXin Lisubmitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 57*d353a188SXin Li 58*d353a188SXin LiLicense 59*d353a188SXin Li------- 60*d353a188SXin Li 61*d353a188SXin LiCopyright 2017 The Android Open Source Project, Inc. 62*d353a188SXin Li 63*d353a188SXin LiLicensed to the Apache Software Foundation (ASF) under one or more contributor 64*d353a188SXin Lilicense agreements. See the NOTICE file distributed with this work for 65*d353a188SXin Liadditional information regarding copyright ownership. The ASF licenses this 66*d353a188SXin Lifile to you under the Apache License, Version 2.0 (the "License"); you may not 67*d353a188SXin Liuse this file except in compliance with the License. You may obtain a copy of 68*d353a188SXin Lithe License at 69*d353a188SXin Li 70*d353a188SXin Lihttp://www.apache.org/licenses/LICENSE-2.0 71*d353a188SXin Li 72*d353a188SXin LiUnless required by applicable law or agreed to in writing, software 73*d353a188SXin Lidistributed under the License is distributed on an "AS IS" BASIS, WITHOUT 74*d353a188SXin LiWARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 75*d353a188SXin LiLicense for the specific language governing permissions and limitations under 76*d353a188SXin Lithe License. 77
