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[Impeller] Add docs to enable Vulkan validation layers on Android (flutter/engine#37200)

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Kaushik Iska 2022-11-01 12:48:42 -04:00 committed by GitHub
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1
engine/src/flutter/impeller/README.md
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@ -188,3 +188,4 @@ To your `AndroidManifest.xml` file, add under the `<application>` tag:
* [How Impeller Works Around The Lack of Uniform Buffers in Open GL ES 2.0.](docs/ubo_gles2.md)
* [Guidance for writing efficient shaders](docs/shader_optimization.md)
* [How color blending works in Impeller](docs/blending.md)
* [Enabling Vulkan Validation Layers on Android](docs/android_validation_layers.md)

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engine/src/flutter/impeller/docs/android_validation_layers.md Normal file
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# Android Vulkan Validation Layers
This is a quick guide to get Vulkan validation layers support for a Flutter application. This guide assumes that you've created the application with `flutter create`, otherwise the locations might vary.
1. Download the validation layers from this [GitHub](https://github.com/KhronosGroup/Vulkan-ValidationLayers/releases) releases. Typically named `android-binaries-1.3.231.1.zip`.
2. When you unzip the file, you will see: `arm64-v8a armeabi-v7a x86 x86_64`
3. Copy these directories to `${FLUTTER_APP}/android/app/src/main/vklibs`. The layout should look similar to:
```
src/main/vklibs/
arm64-v8a/
libVkLayer_khronos_validation.so
armeabi-v7a/
libVkLayer_khronos_validation.so
x86/
libVkLayer_khronos_validation.so
x86-64/
libVkLayer_khronos_validation.so
```
4. Add the following line to `${FLUTTER_APP}/android/app/build.gradle`, `android > sourceSets` section: `main.jniLibs.srcDirs += 'src/main/vklibs'`.
5. This should enable Vulkan validation layers on your Android application.