Add a minimal Egui + Winit + WGPU based example

2026-07-04 05:47:26 +00:00 · 2022-05-13 20:09:34 +01:00
parent c36efc7f6b
commit bfc0d091e6
39 changed files with 1364 additions and 0 deletions
@@ -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
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+        <option name="resolveModulePerSourceSet" value="false" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DesignSurface">
+    <option name="filePathToZoomLevelMap">
+      <map>
+        <entry key="..\:/Users/Robert/src/agdk-rust/examples/agdk-winit-wgpu/app/src/main/res/layout/activity_main.xml" value="0.5546875" />
+      </map>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
@@ -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" ]
@@ -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
+```
@@ -0,0 +1 @@
+/build
@@ -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"
+}
+
@@ -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
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="co.realfit.agdkegui">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="AGDK Egui"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.RustTemplate">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+
+            <meta-data android:name="android.app.lib_name" android:value="main" />
+        </activity>
+    </application>
+
+</manifest>
@@ -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");
+    }
+}
@@ -0,0 +1,30 @@
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+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
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+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
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+    android:height="108dp"
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+    <path
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@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.RustTemplate" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.RustTemplate" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
@@ -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
+}
+
@@ -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
@@ -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
@@ -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 "$JAVACMD" "$@"
@@ -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
@@ -0,0 +1,16 @@
+pluginManagement {
+    repositories {
+        gradlePluginPortal()
+        google()
+        mavenCentral()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+include ':app'
@@ -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<RenderPass>,
+}
+
+struct SurfaceState {
+    window: winit::window::Window,
+    surface: wgpu::Surface
+}
+
+struct AppInner {
+    instance: Instance,
+    adapter: Option<Adapter>,
+    surface_state: Option<SurfaceState>,
+    render_state: Option<RenderState>,
+}
+
+struct EguiApp {
+    inner: Arc<RwLock<AppInner>>
+}
+
+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<RwLock<AppInner>>;
+    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<winit::event_loop::EventLoopProxy<Event>>);
+
+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<T>(app: &EguiApp, event_loop: &EventLoopWindowTarget<T>) -> 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<T>(app: &EguiApp, event_loop: &EventLoopWindowTarget<T>, 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::<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();
+}