diff --git a/examples/agdk-egui/.gitignore b/examples/agdk-egui/.gitignore
new file mode 100644
index 0000000..2e068df
--- /dev/null
+++ b/examples/agdk-egui/.gitignore
@@ -0,0 +1,22 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+*.so
+
+
+# Added by cargo
+
+/target
+Cargo.lock
diff --git a/examples/agdk-egui/.idea/.gitignore b/examples/agdk-egui/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/examples/agdk-egui/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/examples/agdk-egui/.idea/compiler.xml b/examples/agdk-egui/.idea/compiler.xml
new file mode 100644
index 0000000..fb7f4a8
--- /dev/null
+++ b/examples/agdk-egui/.idea/compiler.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/.idea/gradle.xml b/examples/agdk-egui/.idea/gradle.xml
new file mode 100644
index 0000000..526b4c2
--- /dev/null
+++ b/examples/agdk-egui/.idea/gradle.xml
@@ -0,0 +1,20 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/.idea/misc.xml b/examples/agdk-egui/.idea/misc.xml
new file mode 100644
index 0000000..b2b0d06
--- /dev/null
+++ b/examples/agdk-egui/.idea/misc.xml
@@ -0,0 +1,16 @@
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/.idea/vcs.xml b/examples/agdk-egui/.idea/vcs.xml
new file mode 100644
index 0000000..fdf1fc8
--- /dev/null
+++ b/examples/agdk-egui/.idea/vcs.xml
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/Cargo.toml b/examples/agdk-egui/Cargo.toml
new file mode 100644
index 0000000..3d84fa0
--- /dev/null
+++ b/examples/agdk-egui/Cargo.toml
@@ -0,0 +1,44 @@
+[package]
+name = "agdk-egui"
+version = "0.1.0"
+edition = "2021"
+resolver = "2"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+log = "0.4"
+winit = { git = "https://github.com/rib/winit", branch = "agdk-game-activity" }
+#winit = { path="../../../winit" }
+wgpu = "0.12.0"
+pollster = "0.2"
+#egui_winit_platform = "0.14"
+egui_winit_platform = { path = "../../../egui_winit_platform" }
+egui_wgpu_backend = "0.17"
+egui = "0.17"
+chrono = "0.4"
+epi = "0.17"
+egui_demo_lib = "0.17"
+
+[patch.crates-io]
+winit = { git = "https://github.com/rib/winit", branch = "agdk-game-activity" }
+
+[target.'cfg(not(target_os = "android"))'.dependencies]
+env_logger = "0.9"
+
+[target.'cfg(target_os = "android")'.dependencies]
+android_logger = "0.11.0"
+game-activity = { path="../../game-activity" }
+
+[features]
+default = []
+desktop = []
+
+[lib]
+name="main"
+crate_type=["cdylib"]
+
+[[bin]]
+path="src/lib.rs"
+name="egui-test"
+required-features = [ "desktop" ]
\ No newline at end of file
diff --git a/examples/agdk-egui/README.md b/examples/agdk-egui/README.md
new file mode 100644
index 0000000..308c488
--- /dev/null
+++ b/examples/agdk-egui/README.md
@@ -0,0 +1,18 @@
+This tests using the game_activity crate with egui, winit and wgpu.
+
+This is based on a re-worked winit backend here:
+https://github.com/rib/winit/tree/agdk-game-activity
+
+```
+rustup target add aarch64-linux-android
+
+cargo install cargo-ndk
+
+export ANDROID_NDK_HOME="path/to/ndk"
+cargo ndk -t arm64-v8a -o app/src/main/jniLibs/ build
+
+export ANDROID_HOME="path/to/sdk"
+./gradlew build
+./gradlew installDebug
+adb shell am start -n co.realfit.agdkegui/.MainActivity
+```
\ No newline at end of file
diff --git a/examples/agdk-egui/app/.gitignore b/examples/agdk-egui/app/.gitignore
new file mode 100644
index 0000000..42afabf
--- /dev/null
+++ b/examples/agdk-egui/app/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/examples/agdk-egui/app/build.gradle b/examples/agdk-egui/app/build.gradle
new file mode 100644
index 0000000..ba2c6d5
--- /dev/null
+++ b/examples/agdk-egui/app/build.gradle
@@ -0,0 +1,61 @@
+plugins {
+ id 'com.android.application'
+}
+
+android {
+ compileSdk 31
+
+ defaultConfig {
+ applicationId "co.realfit.agdkegui"
+ minSdk 28
+ targetSdk 31
+ versionCode 1
+ versionName "1.0"
+
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+ }
+ debug {
+ minifyEnabled false
+ //packagingOptions {
+ // doNotStrip '**/*.so'
+ //}
+ //debuggable true
+ }
+ }
+ compileOptions {
+ sourceCompatibility JavaVersion.VERSION_1_8
+ targetCompatibility JavaVersion.VERSION_1_8
+ }
+}
+
+dependencies {
+
+ implementation 'androidx.appcompat:appcompat:1.4.1'
+ implementation 'com.google.android.material:material:1.5.0'
+ implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+ testImplementation 'junit:junit:4.13.2'
+ androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
+ // To use the Android Frame Pacing library
+ //implementation "androidx.games:games-frame-pacing:1.9.1"
+
+ // To use the Android Performance Tuner
+ //implementation "androidx.games:games-performance-tuner:1.5.0"
+
+ // To use the Games Activity library
+ implementation "androidx.games:games-activity:1.1.0"
+
+ // To use the Games Controller Library
+ //implementation "androidx.games:games-controller:1.1.0"
+
+ // To use the Games Text Input Library
+ //implementation "androidx.games:games-text-input:1.1.0"
+}
+
diff --git a/examples/agdk-egui/app/proguard-rules.pro b/examples/agdk-egui/app/proguard-rules.pro
new file mode 100644
index 0000000..481bb43
--- /dev/null
+++ b/examples/agdk-egui/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
\ No newline at end of file
diff --git a/examples/agdk-egui/app/src/main/AndroidManifest.xml b/examples/agdk-egui/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..9d095f8
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/AndroidManifest.xml
@@ -0,0 +1,24 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/app/src/main/java/co/realfit/agdkegui/MainActivity.java b/examples/agdk-egui/app/src/main/java/co/realfit/agdkegui/MainActivity.java
new file mode 100644
index 0000000..4c4d5e2
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/java/co/realfit/agdkegui/MainActivity.java
@@ -0,0 +1,70 @@
+package co.realfit.agdkegui;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.view.WindowCompat;
+import androidx.core.view.WindowInsetsCompat;
+import androidx.core.view.WindowInsetsControllerCompat;
+
+import com.google.androidgamesdk.GameActivity;
+
+import android.os.Bundle;
+import android.content.pm.PackageManager;
+import android.os.Build.VERSION;
+import android.os.Build.VERSION_CODES;
+import android.os.Bundle;
+import android.view.View;
+import android.view.WindowManager;
+
+public class MainActivity extends GameActivity {
+
+ static {
+ // Load the STL first to workaround issues on old Android versions:
+ // "if your app targets a version of Android earlier than Android 4.3
+ // (Android API level 18),
+ // and you use libc++_shared.so, you must load the shared library before any other
+ // library that depends on it."
+ // See https://developer.android.com/ndk/guides/cpp-support#shared_runtimes
+ //System.loadLibrary("c++_shared");
+
+ // Load the native library.
+ // The name "android-game" depends on your CMake configuration, must be
+ // consistent here and inside AndroidManifect.xml
+ System.loadLibrary("main");
+ }
+
+ private void hideSystemUI() {
+ // This will put the game behind any cutouts and waterfalls on devices which have
+ // them, so the corresponding insets will be non-zero.
+ if (VERSION.SDK_INT >= VERSION_CODES.P) {
+ getWindow().getAttributes().layoutInDisplayCutoutMode
+ = WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
+ }
+ // From API 30 onwards, this is the recommended way to hide the system UI, rather than
+ // using View.setSystemUiVisibility.
+ View decorView = getWindow().getDecorView();
+ WindowInsetsControllerCompat controller = new WindowInsetsControllerCompat(getWindow(),
+ decorView);
+ controller.hide(WindowInsetsCompat.Type.systemBars());
+ controller.hide(WindowInsetsCompat.Type.displayCutout());
+ controller.setSystemBarsBehavior(
+ WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE);
+ }
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ // When true, the app will fit inside any system UI windows.
+ // When false, we render behind any system UI windows.
+ WindowCompat.setDecorFitsSystemWindows(getWindow(), false);
+ hideSystemUI();
+ // You can set IME fields here or in native code using GameActivity_setImeEditorInfoFields.
+ // We set the fields in native_engine.cpp.
+ // super.setImeEditorInfoFields(InputType.TYPE_CLASS_TEXT,
+ // IME_ACTION_NONE, IME_FLAG_NO_FULLSCREEN );
+ super.onCreate(savedInstanceState);
+ }
+
+ public boolean isGooglePlayGames() {
+ PackageManager pm = getPackageManager();
+ return pm.hasSystemFeature("com.google.android.play.feature.HPE_EXPERIENCE");
+ }
+}
\ No newline at end of file
diff --git a/examples/agdk-egui/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/examples/agdk-egui/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..2b068d1
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/app/src/main/res/drawable/ic_launcher_background.xml b/examples/agdk-egui/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..07d5da9
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/examples/agdk-egui/app/src/main/res/layout/activity_main.xml b/examples/agdk-egui/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..4fc2444
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,18 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/examples/agdk-egui/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..eca70cf
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/examples/agdk-egui/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000..eca70cf
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/app/src/main/res/mipmap-hdpi/ic_launcher.webp b/examples/agdk-egui/app/src/main/res/mipmap-hdpi/ic_launcher.webp
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diff --git a/examples/agdk-egui/app/src/main/res/mipmap-mdpi/ic_launcher.webp b/examples/agdk-egui/app/src/main/res/mipmap-mdpi/ic_launcher.webp
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diff --git a/examples/agdk-egui/app/src/main/res/mipmap-xhdpi/ic_launcher.webp b/examples/agdk-egui/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
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diff --git a/examples/agdk-egui/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp b/examples/agdk-egui/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
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diff --git a/examples/agdk-egui/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp b/examples/agdk-egui/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
new file mode 100644
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diff --git a/examples/agdk-egui/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp b/examples/agdk-egui/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
new file mode 100644
index 0000000..9126ae3
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diff --git a/examples/agdk-egui/app/src/main/res/values-night/themes.xml b/examples/agdk-egui/app/src/main/res/values-night/themes.xml
new file mode 100644
index 0000000..81c6873
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/res/values-night/themes.xml
@@ -0,0 +1,16 @@
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/app/src/main/res/values/colors.xml b/examples/agdk-egui/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000..f8c6127
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/res/values/colors.xml
@@ -0,0 +1,10 @@
+
+
+ #FFBB86FC
+ #FF6200EE
+ #FF3700B3
+ #FF03DAC5
+ #FF018786
+ #FF000000
+ #FFFFFFFF
+
\ No newline at end of file
diff --git a/examples/agdk-egui/app/src/main/res/values/themes.xml b/examples/agdk-egui/app/src/main/res/values/themes.xml
new file mode 100644
index 0000000..83a6c4a
--- /dev/null
+++ b/examples/agdk-egui/app/src/main/res/values/themes.xml
@@ -0,0 +1,16 @@
+
+
+
+
\ No newline at end of file
diff --git a/examples/agdk-egui/build.gradle b/examples/agdk-egui/build.gradle
new file mode 100644
index 0000000..dfdcb16
--- /dev/null
+++ b/examples/agdk-egui/build.gradle
@@ -0,0 +1,10 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+ id 'com.android.application' version '7.1.2' apply false
+ id 'com.android.library' version '7.1.2' apply false
+}
+
+task clean(type: Delete) {
+ delete rootProject.buildDir
+}
+
diff --git a/examples/agdk-egui/gradle.properties b/examples/agdk-egui/gradle.properties
new file mode 100644
index 0000000..dab7c28
--- /dev/null
+++ b/examples/agdk-egui/gradle.properties
@@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app"s APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
\ No newline at end of file
diff --git a/examples/agdk-egui/gradle/wrapper/gradle-wrapper.jar b/examples/agdk-egui/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..e708b1c
Binary files /dev/null and b/examples/agdk-egui/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/examples/agdk-egui/gradle/wrapper/gradle-wrapper.properties b/examples/agdk-egui/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..b53fece
--- /dev/null
+++ b/examples/agdk-egui/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon May 02 15:39:12 BST 2022
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
diff --git a/examples/agdk-egui/gradlew b/examples/agdk-egui/gradlew
new file mode 100644
index 0000000..4f906e0
--- /dev/null
+++ b/examples/agdk-egui/gradlew
@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed 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
+#
+# https://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.
+#
+
+##############################################################################
+##
+## Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+ ls=`ls -ld "$PRG"`
+ link=`expr "$ls" : '.*-> \(.*\)$'`
+ if expr "$link" : '/.*' > /dev/null; then
+ PRG="$link"
+ else
+ PRG=`dirname "$PRG"`"/$link"
+ fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+ echo "$*"
+}
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+ CYGWIN* )
+ cygwin=true
+ ;;
+ Darwin* )
+ darwin=true
+ ;;
+ MINGW* )
+ msys=true
+ ;;
+ NONSTOP* )
+ nonstop=true
+ ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD="$JAVA_HOME/jre/sh/java"
+ else
+ JAVACMD="$JAVA_HOME/bin/java"
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD="java"
+ which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+ MAX_FD_LIMIT=`ulimit -H -n`
+ if [ $? -eq 0 ] ; then
+ if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+ MAX_FD="$MAX_FD_LIMIT"
+ fi
+ ulimit -n $MAX_FD
+ if [ $? -ne 0 ] ; then
+ warn "Could not set maximum file descriptor limit: $MAX_FD"
+ fi
+ else
+ warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+ fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+ GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+ APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+ CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+ JAVACMD=`cygpath --unix "$JAVACMD"`
+
+ # We build the pattern for arguments to be converted via cygpath
+ ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+ SEP=""
+ for dir in $ROOTDIRSRAW ; do
+ ROOTDIRS="$ROOTDIRS$SEP$dir"
+ SEP="|"
+ done
+ OURCYGPATTERN="(^($ROOTDIRS))"
+ # Add a user-defined pattern to the cygpath arguments
+ if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+ OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+ fi
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ i=0
+ for arg in "$@" ; do
+ CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+ CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
+
+ if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
+ eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+ else
+ eval `echo args$i`="\"$arg\""
+ fi
+ i=`expr $i + 1`
+ done
+ case $i in
+ 0) set -- ;;
+ 1) set -- "$args0" ;;
+ 2) set -- "$args0" "$args1" ;;
+ 3) set -- "$args0" "$args1" "$args2" ;;
+ 4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+ 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+ 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+ 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+ 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+ 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+ esac
+fi
+
+# Escape application args
+save () {
+ for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+ echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
diff --git a/examples/agdk-egui/gradlew.bat b/examples/agdk-egui/gradlew.bat
new file mode 100644
index 0000000..107acd3
--- /dev/null
+++ b/examples/agdk-egui/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/examples/agdk-egui/settings.gradle b/examples/agdk-egui/settings.gradle
new file mode 100644
index 0000000..f60920c
--- /dev/null
+++ b/examples/agdk-egui/settings.gradle
@@ -0,0 +1,16 @@
+pluginManagement {
+ repositories {
+ gradlePluginPortal()
+ google()
+ mavenCentral()
+ }
+}
+dependencyResolutionManagement {
+ repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+ repositories {
+ google()
+ mavenCentral()
+ }
+}
+
+include ':app'
diff --git a/examples/agdk-egui/src/lib.rs b/examples/agdk-egui/src/lib.rs
new file mode 100644
index 0000000..2c800b6
--- /dev/null
+++ b/examples/agdk-egui/src/lib.rs
@@ -0,0 +1,454 @@
+
+use log::Level;
+use log::{trace, warn, error};
+use wgpu::TextureFormat;
+use wgpu::{Instance, Adapter, Device, Queue};
+use winit::event_loop::{EventLoopWindowTarget, EventLoopBuilder};
+
+use std::ops::Deref;
+use std::sync::{Arc, RwLock};
+use winit::{
+ event_loop::{ControlFlow},
+};
+
+use std::iter;
+use std::time::Instant;
+
+use chrono::Timelike;
+use egui::FontDefinitions;
+use egui_wgpu_backend::{RenderPass, ScreenDescriptor};
+use egui_winit_platform::{Platform, PlatformDescriptor};
+use epi::{*, App};
+use winit::event::Event::*;
+const INITIAL_WIDTH: u32 = 1920;
+const INITIAL_HEIGHT: u32 = 1080;
+
+
+
+struct RenderState {
+ device: Device,
+ queue: Queue,
+ target_format: TextureFormat,
+ egui_rpass: RwLock,
+}
+
+struct SurfaceState {
+ window: winit::window::Window,
+ surface: wgpu::Surface
+}
+
+struct AppInner {
+ instance: Instance,
+ adapter: Option,
+ surface_state: Option,
+ render_state: Option,
+}
+
+struct EguiApp {
+ inner: Arc>
+}
+
+impl EguiApp {
+ fn new(instance: Instance) -> Self {
+ Self {
+ inner: Arc::new(RwLock::new(AppInner {
+ instance,
+ adapter: None,
+ surface_state: None,
+ render_state: None,
+ }))
+ }
+ }
+}
+impl Deref for EguiApp {
+ type Target = Arc>;
+ fn deref(&self) -> &Self::Target {
+ &self.inner
+ }
+}
+
+
+/// A custom event type for the winit app.
+enum Event {
+ RequestRedraw,
+}
+
+/// This is the repaint signal type that egui needs for requesting a repaint from another thread.
+/// It sends the custom RequestRedraw event to the winit event loop.
+struct ExampleRepaintSignal(std::sync::Mutex>);
+
+impl epi::backend::RepaintSignal for ExampleRepaintSignal {
+ fn request_repaint(&self) {
+ self.0.lock().unwrap().send_event(Event::RequestRedraw).ok();
+ }
+}
+
+
+/// Time of day as seconds since midnight. Used for clock in demo app.
+pub fn seconds_since_midnight() -> f64 {
+ let time = chrono::Local::now().time();
+ time.num_seconds_from_midnight() as f64 + 1e-9 * (time.nanosecond() as f64)
+}
+
+async fn init_render_state(adapter: &Adapter, target_format: TextureFormat) -> RenderState {
+ trace!("Initializing render state");
+
+ trace!("WGPU: requesting device");
+ // Create the logical device and command queue
+ let (device, queue) = adapter
+ .request_device(
+ &wgpu::DeviceDescriptor {
+ label: None,
+ features: wgpu::Features::empty(),
+ // Make sure we use the texture resolution limits from the adapter, so we can support images the size of the swapchain.
+ limits: wgpu::Limits::downlevel_webgl2_defaults()
+ .using_resolution(adapter.limits()),
+ },
+ None,
+ )
+ .await
+ .expect("Failed to create device");
+
+ let egui_rpass = RenderPass::new(&device, target_format, 1);
+
+ RenderState {
+ device,
+ queue,
+ target_format,
+ egui_rpass: RwLock::new(egui_rpass),
+ }
+}
+
+fn configure_surface_swapchain(render_state: &RenderState, surface_state: &SurfaceState) {
+ let swapchain_format = render_state.target_format;
+ let size = surface_state.window.inner_size();
+
+ let config = wgpu::SurfaceConfiguration {
+ usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
+ format: swapchain_format,
+ width: size.width,
+ height: size.height,
+ present_mode: wgpu::PresentMode::Mailbox,
+ //present_mode: wgpu::PresentMode::Fifo,
+ };
+
+ trace!("WGPU: Configuring surface swapchain: format = {swapchain_format:?}, size = {size:?}");
+ surface_state.surface.configure(&render_state.device, &config);
+}
+
+// We want to defer the initialization of our render state until
+// we have a surface so we can take its format into account.
+//
+// After we've initialized our render state once though we
+// expect all future surfaces will have the same format and we
+// so this stat will remain valid.
+async fn ensure_render_state_for_surface(app: &EguiApp, new_surface_state: &SurfaceState) {
+ let mut app_guard = app.inner.write().unwrap();
+ if app_guard.adapter.is_none() {
+ trace!("WGPU: requesting a suitable adapter (compatible with our surface)");
+ let adapter = app_guard.instance
+ .request_adapter(&wgpu::RequestAdapterOptions {
+ power_preference: wgpu::PowerPreference::default(),
+ force_fallback_adapter: false,
+ // Request an adapter which can render to our surface
+ compatible_surface: Some(&new_surface_state.surface),
+ })
+ .await
+ .expect("Failed to find an appropriate adapter");
+
+ app_guard.adapter = Some(adapter);
+ }
+ let adapter = app_guard.adapter.as_ref().unwrap();
+
+ if app_guard.render_state.is_none() {
+ trace!("WGPU: finding preferred swapchain format");
+ let swapchain_format = new_surface_state.surface.get_preferred_format(&adapter).unwrap();
+
+ let rs = init_render_state(adapter, swapchain_format).await;
+ app_guard.render_state = Some(rs);
+ }
+}
+
+fn create_surface(app: &EguiApp, event_loop: &EventLoopWindowTarget) -> SurfaceState {
+ //let window = winit::window::Window::new(&event_loop).unwrap();
+ let window = winit::window::WindowBuilder::new()
+ .with_decorations(true)
+ .with_resizable(true)
+ .with_transparent(false)
+ .with_title("egui-wgpu_winit example")
+ .with_inner_size(winit::dpi::PhysicalSize {
+ width: INITIAL_WIDTH,
+ height: INITIAL_HEIGHT,
+ })
+ .build(&event_loop)
+ .unwrap();
+ trace!("WGPU: creating surface for native window");
+ let guard = app.inner.read().unwrap();
+ let surface = unsafe { guard.instance.create_surface(&window) };
+
+ SurfaceState {
+ window,
+ surface
+ }
+}
+
+fn resume(app: &EguiApp, event_loop: &EventLoopWindowTarget, platform: &mut Platform) {
+ trace!("Resumed, creating render state...");
+
+ let new_surface = create_surface(&app, event_loop);
+
+ pollster::block_on(ensure_render_state_for_surface(&app, &new_surface));
+
+ app.write().unwrap().surface_state = Some(new_surface);
+
+ let guard = app.read().unwrap();
+ let render_state = guard.render_state.as_ref().unwrap();
+ let surface_state = guard.surface_state.as_ref().unwrap();
+ configure_surface_swapchain(render_state, surface_state);
+
+ let mut size = surface_state.window.inner_size();
+ let scale_factor = surface_state.window.scale_factor() as f32;
+ let raw_input = platform.raw_input_mut();
+ raw_input.pixels_per_point = Some(scale_factor);
+ raw_input.screen_rect = Some(egui::Rect::from_min_size(
+ egui::Pos2::default(),
+ egui::vec2(
+ size.width as f32,
+ size.height as f32,
+ ) / scale_factor,
+ ));
+
+ // WORKAROUND
+ //
+ // egui_winit_platform maintains a private scale_factor that's normally
+ // only possible to initialize via `Platform::new()` which isn't possible
+ // on Android before we have a Window. Currently the only way we can update this
+ // state is by issuing a fake ScaleFactorChanged event...
+ //
+ // See: https://github.com/hasenbanck/egui_winit_platform/issues/40
+ platform.handle_event::(&winit::event::Event::WindowEvent {
+ window_id: surface_state.window.id(),
+ event: winit::event::WindowEvent::ScaleFactorChanged {
+ scale_factor: scale_factor as f64,
+ new_inner_size: &mut size }
+ });
+
+ trace!("Making Redraw Request");
+ surface_state.window.request_redraw();
+}
+
+fn _main() {
+ let instance = wgpu::Instance::new(wgpu::Backends::PRIMARY);
+ //let instance = wgpu::Instance::new(wgpu::Backends::VULKAN);
+ //let instance = wgpu::Instance::new(wgpu::Backends::GL);
+
+ let app = EguiApp::new(instance);
+
+ let event_loop = EventLoopBuilder::with_user_event().build();
+
+ let repaint_signal = std::sync::Arc::new(ExampleRepaintSignal(std::sync::Mutex::new(
+ event_loop.create_proxy(),
+ )));
+
+ // We use the egui_winit_platform crate as the platform.
+ // Note: we are initializing with dummy state because we don't technically know
+ // anything about the physical size or required scale factor yet...
+ let mut platform = Platform::new(PlatformDescriptor {
+ physical_width: INITIAL_WIDTH,
+ physical_height: INITIAL_HEIGHT,
+ scale_factor: 1.0,
+ font_definitions: FontDefinitions::default(),
+ style: Default::default(),
+ });
+
+ // We use the egui_wgpu_backend crate as the render backend.
+
+ // Display the demo application that ships with egui.
+ let mut demo_app = egui_demo_lib::WrapApp::default();
+
+ let start_time = Instant::now();
+ let mut previous_frame_time = None;
+ event_loop.run(move |event, event_loop, control_flow| {
+ // Pass the winit events to the platform integration.
+ platform.handle_event(&event);
+
+ match event {
+ NewEvents(winit::event::StartCause::Init) => {
+ // Note: that because Winit doesn't currently support lifecycle events consistently
+ // across platforms then we effectively issue a fake 'resume' on non-android
+ // platforms...
+ #[cfg(not(target_os="android"))]
+ resume(&app, event_loop, &mut platform)
+ }
+ Resumed => {
+ resume(&app, event_loop, &mut platform);
+ }
+ RedrawRequested(..) => {
+ let guard = app.read().unwrap();
+
+ if let Some(ref surface_state) = guard.surface_state {
+ if let Some(ref render_state) = guard.render_state {
+ platform.update_time(start_time.elapsed().as_secs_f64());
+
+ let size = surface_state.window.inner_size();
+ let scale_factor = surface_state.window.scale_factor() as f32;
+
+ let output_frame = match surface_state.surface.get_current_texture() {
+ Ok(frame) => frame,
+ Err(wgpu::SurfaceError::Outdated) => {
+ // This error occurs when the app is minimized on Windows.
+ // Silently return here to prevent spamming the console with:
+ // "The underlying surface has changed, and therefore the swap chain must be updated"
+ return;
+ }
+ Err(e) => {
+ eprintln!("Dropped frame with error: {}", e);
+ return;
+ }
+ };
+ let output_view = output_frame
+ .texture
+ .create_view(&wgpu::TextureViewDescriptor::default());
+
+ // Begin to draw the UI frame.
+ let egui_start = Instant::now();
+ platform.begin_frame();
+ let app_output = epi::backend::AppOutput::default();
+
+ let mut frame = epi::Frame::new(epi::backend::FrameData {
+ info: epi::IntegrationInfo {
+ name: "egui_example",
+ web_info: None,
+ cpu_usage: previous_frame_time,
+ native_pixels_per_point: Some(scale_factor),
+ prefer_dark_mode: None,
+ },
+ output: app_output,
+ repaint_signal: repaint_signal.clone(),
+ });
+
+ // Draw the demo application.
+ demo_app.update(&platform.context(), &mut frame);
+
+ // End the UI frame. We could now handle the output and draw the UI with the backend.
+ //let (_output, paint_commands) =
+ let output = platform.end_frame(Some(&surface_state.window));
+ let paint_jobs = platform.context().tessellate(output.shapes);
+
+ let frame_time = (Instant::now() - egui_start).as_secs_f64() as f32;
+ previous_frame_time = Some(frame_time);
+
+ let mut encoder = render_state.device.create_command_encoder(&wgpu::CommandEncoderDescriptor {
+ label: Some("encoder"),
+ });
+
+ // Upload all resources for the GPU.
+ let screen_descriptor = ScreenDescriptor {
+ physical_width: size.width,
+ physical_height: size.height,
+ scale_factor: scale_factor,
+ };
+
+ {
+ let mut egui_rpass = render_state.egui_rpass.write().unwrap();
+ match egui_rpass.add_textures(&render_state.device, &render_state.queue, &output.textures_delta) {
+ Ok(()) => {
+ //egui_rpass.update_texture(&device, &queue, &platform.context().font_image());
+ //egui_rpass.update_user_textures(&device, &queue);
+ egui_rpass.update_buffers(&render_state.device, &render_state.queue, &paint_jobs, &screen_descriptor);
+
+ // Record all render passes.
+ egui_rpass
+ .execute(
+ &mut encoder,
+ &output_view,
+ &paint_jobs,
+ &screen_descriptor,
+ Some(wgpu::Color::BLACK),
+ )
+ .unwrap();
+ // Submit the commands.
+ render_state.queue.submit(iter::once(encoder.finish()));
+
+ // Redraw egui
+ output_frame.present();
+
+ if let Err(err) = egui_rpass.remove_textures(output.textures_delta) {
+ error!("Failed to remove texture deltas from Egui render pass: {err:?}");
+ }
+ }
+ Err(err) => {
+ error!("Failed to add texture deltas before executing render pass: {err:?}");
+ }
+ }
+ }
+
+ // Suppport reactive on windows only, but not on linux.
+ // if _output.needs_repaint {
+ // *control_flow = ControlFlow::Poll;
+ // } else {
+ // *control_flow = ControlFlow::Wait;
+ // }
+ }
+ }
+ }
+ MainEventsCleared | UserEvent(Event::RequestRedraw) => {
+ let guard = app.read().unwrap();
+ if let Some(ref surface_state) = guard.surface_state {
+ surface_state.window.request_redraw();
+ }
+ }
+ WindowEvent { event, .. } => match event {
+ winit::event::WindowEvent::Resized(size) => {
+
+ let guard = app.read().unwrap();
+ if let Some(ref surface_state) = guard.surface_state {
+ if let Some(ref render_state) = guard.render_state {
+ warn!("resized size = {size:?}, window inner_size = {:?}", surface_state.window.inner_size());
+ // BUG WORKAROUND:
+ //
+ // Currently Windows will emit an erroneous Resized 0x0 event on minimize which doesn't
+ // even logically make sense on Windows, where apps can continue to render for minimization
+ // thumbnails. A 0x0 size will almost certainly lead to divide zeros when calculating
+ // aspect ratios so we just ignore the event.
+ //
+ // See: https://github.com/rust-windowing/winit/issues/208
+ if size.width > 0 && size.height > 0 {
+ configure_surface_swapchain(render_state, surface_state);
+ }
+ }
+ }
+ }
+ winit::event::WindowEvent::CloseRequested => {
+ *control_flow = ControlFlow::Exit;
+ }
+ _ => {}
+ },
+ _ => (),
+ }
+ });
+}
+
+
+#[cfg(target_os="android")]
+#[no_mangle]
+extern "C" fn android_main() {
+ android_logger::init_once(
+ android_logger::Config::default().with_min_level(Level::Trace)
+ );
+
+ _main();
+}
+// Stop rust-analyzer from complaining that this file doesn't have a main() function...
+#[cfg(target_os="android")]
+#[cfg(allow_unused)]
+fn main() {}
+
+#[cfg(not(target_os="android"))]
+fn main() {
+ env_logger::builder().filter_level(log::LevelFilter::Warn) // Default Log Level
+ .parse_default_env()
+ .init();
+
+ _main();
+}
\ No newline at end of file