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