diff --git a/Cargo.toml b/Cargo.toml index 84369bb..8303613 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -12,5 +12,6 @@ exclude = [ "examples/agdk-cpal", "examples/na-mainloop", "examples/na-winit-wgpu", - "examples/na-subclass-jni" + "examples/na-subclass-jni", + "examples/na-openxr-info" ] diff --git a/examples/na-openxr-info/.gitignore b/examples/na-openxr-info/.gitignore new file mode 100644 index 0000000..ebd37e1 --- /dev/null +++ b/examples/na-openxr-info/.gitignore @@ -0,0 +1,21 @@ +*.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/na-openxr-info/.idea/.gitignore b/examples/na-openxr-info/.idea/.gitignore new file mode 100644 index 0000000..26d3352 --- /dev/null +++ b/examples/na-openxr-info/.idea/.gitignore @@ -0,0 +1,3 @@ +# Default ignored files +/shelf/ +/workspace.xml diff --git a/examples/na-openxr-info/.idea/compiler.xml b/examples/na-openxr-info/.idea/compiler.xml new file mode 100644 index 0000000..fb7f4a8 --- /dev/null +++ b/examples/na-openxr-info/.idea/compiler.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/examples/na-openxr-info/.idea/gradle.xml b/examples/na-openxr-info/.idea/gradle.xml new file mode 100644 index 0000000..a2d7c21 --- /dev/null +++ b/examples/na-openxr-info/.idea/gradle.xml @@ -0,0 +1,19 @@ + + + + + + + \ No newline at end of file diff --git a/examples/na-openxr-info/.idea/misc.xml b/examples/na-openxr-info/.idea/misc.xml new file mode 100644 index 0000000..2a4d5b5 --- /dev/null +++ b/examples/na-openxr-info/.idea/misc.xml @@ -0,0 +1,9 @@ + + + + + + + + \ No newline at end of file diff --git a/examples/na-openxr-info/.idea/vcs.xml b/examples/na-openxr-info/.idea/vcs.xml new file mode 100644 index 0000000..fdf1fc8 --- /dev/null +++ b/examples/na-openxr-info/.idea/vcs.xml @@ -0,0 +1,7 @@ + + + + + + + \ No newline at end of file diff --git a/examples/na-openxr-info/Cargo.toml b/examples/na-openxr-info/Cargo.toml new file mode 100644 index 0000000..c7fd492 --- /dev/null +++ b/examples/na-openxr-info/Cargo.toml @@ -0,0 +1,37 @@ +[package] +name = "na-openxr-info" +version = "0.1.0" +edition = "2021" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +log = "0.4" +openxr = { version = "0.16" } + +[target.'cfg(not(target_os = "android"))'.dependencies] +env_logger = "0.9" + +[target.'cfg(target_os = "android")'.dependencies] +android_logger = "0.11.0" +android-activity = { path="../../android-activity", features = ["native-activity"] } + +[patch.crates-io] +# openxr 0.16 uses ndk-glue, but master uses ndk-context which is compatible with android-activity +openxr = { git = "https://github.com/Ralith/openxrs" } + +[features] +default = [ "linked" ] + +android = [ "openxr/linked" ] +desktop = [ "linked", "openxr/static"] +linked = [] + +[lib] +name="main" +crate_type=["cdylib"] + +[[bin]] +path="src/lib.rs" +name="test-winit-wgpu" +required-features = [ "desktop" ] \ No newline at end of file diff --git a/examples/na-openxr-info/README.md b/examples/na-openxr-info/README.md new file mode 100644 index 0000000..5020267 --- /dev/null +++ b/examples/na-openxr-info/README.md @@ -0,0 +1,34 @@ +This is a minimal OpenXR application that builds for desktop or +Android and simply prints out extension information for the OpenXR +library. + +This is based on the [hello](https://github.com/Ralith/openxrs/blob/master/openxr/examples/hello.rs) +example from the [openxrs](https://github.com/Ralith/openxrs) repo. + +# Oculus Quest + +To build for the Oculus Quest then you first need to download +the Oculus OpenXR Mobile SDK from: +https://developer.oculus.com/downloads/package/oculus-openxr-mobile-sdk/ + +unpack the zip file and then set the OVR_OPENXR_LIBDIR environment variable +to point at the directory with libopenxr_loader.so + +``` +export export OVR_OPENXR_LIBDIR="path/to/ovr_openxr_mobile_sdk_42.0/OpenXR/Libs/Android/arm64-v8a/Debug" +export ANDROID_NDK_HOME="path/to/ndk" +export ANDROID_HOME="path/to/sdk" + +rustup target add aarch64-linux-android +cargo install cargo-ndk + +cargo ndk -t arm64-v8a -o app/src/main/jniLibs/ build --features=android +./gradlew build +./gradlew installDebug +``` + +# Desktop + +To build for PC you need to build with the "desktop" feature + +`cargo run --features=desktop` \ No newline at end of file diff --git a/examples/na-openxr-info/app/.gitignore b/examples/na-openxr-info/app/.gitignore new file mode 100644 index 0000000..42afabf --- /dev/null +++ b/examples/na-openxr-info/app/.gitignore @@ -0,0 +1 @@ +/build \ No newline at end of file diff --git a/examples/na-openxr-info/app/build.gradle b/examples/na-openxr-info/app/build.gradle new file mode 100644 index 0000000..76b6a98 --- /dev/null +++ b/examples/na-openxr-info/app/build.gradle @@ -0,0 +1,42 @@ +plugins { + id 'com.android.application' +} + +android { + compileSdk 31 + + defaultConfig { + applicationId "co.realfit.naopenxrinfo" + minSdk 24 + targetSdk 25 + compileSdkVersion 26 + 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 { + + +} + diff --git a/examples/na-openxr-info/app/proguard-rules.pro b/examples/na-openxr-info/app/proguard-rules.pro new file mode 100644 index 0000000..481bb43 --- /dev/null +++ b/examples/na-openxr-info/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/na-openxr-info/app/src/main/AndroidManifest.xml b/examples/na-openxr-info/app/src/main/AndroidManifest.xml new file mode 100644 index 0000000..4b7a8f1 --- /dev/null +++ b/examples/na-openxr-info/app/src/main/AndroidManifest.xml @@ -0,0 +1,40 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/examples/na-openxr-info/app/src/main/java/co/realfit/naopenxrinfo/MainActivity.java b/examples/na-openxr-info/app/src/main/java/co/realfit/naopenxrinfo/MainActivity.java new file mode 100644 index 0000000..1cfd0ba --- /dev/null +++ b/examples/na-openxr-info/app/src/main/java/co/realfit/naopenxrinfo/MainActivity.java @@ -0,0 +1,8 @@ +package co.realfit.naopenxrinfo; + +public class MainActivity extends android.app.NativeActivity { + static { + System.loadLibrary("openxr_loader"); + System.loadLibrary("main"); + } +} \ No newline at end of file diff --git a/examples/na-openxr-info/build.gradle b/examples/na-openxr-info/build.gradle new file mode 100644 index 0000000..dfdcb16 --- /dev/null +++ b/examples/na-openxr-info/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/na-openxr-info/build.rs b/examples/na-openxr-info/build.rs new file mode 100644 index 0000000..ad05e72 --- /dev/null +++ b/examples/na-openxr-info/build.rs @@ -0,0 +1,6 @@ +fn main() +{ + if std::env::var("CARGO_CFG_TARGET_OS").unwrap() == "android" { + println!("cargo:rustc-link-search={:}", std::env::var("OVR_OPENXR_LIBDIR").unwrap()); + } +} \ No newline at end of file diff --git a/examples/na-openxr-info/gradle.properties b/examples/na-openxr-info/gradle.properties new file mode 100644 index 0000000..dab7c28 --- /dev/null +++ b/examples/na-openxr-info/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/na-openxr-info/gradle/wrapper/gradle-wrapper.jar b/examples/na-openxr-info/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..e708b1c Binary files /dev/null and b/examples/na-openxr-info/gradle/wrapper/gradle-wrapper.jar differ diff --git a/examples/na-openxr-info/gradle/wrapper/gradle-wrapper.properties b/examples/na-openxr-info/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..0460660 --- /dev/null +++ b/examples/na-openxr-info/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-7.5-bin.zip +distributionPath=wrapper/dists +zipStorePath=wrapper/dists +zipStoreBase=GRADLE_USER_HOME diff --git a/examples/na-openxr-info/gradlew b/examples/na-openxr-info/gradlew new file mode 100644 index 0000000..4f906e0 --- /dev/null +++ b/examples/na-openxr-info/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/na-openxr-info/gradlew.bat b/examples/na-openxr-info/gradlew.bat new file mode 100644 index 0000000..107acd3 --- /dev/null +++ b/examples/na-openxr-info/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/na-openxr-info/settings.gradle b/examples/na-openxr-info/settings.gradle new file mode 100644 index 0000000..78d4714 --- /dev/null +++ b/examples/na-openxr-info/settings.gradle @@ -0,0 +1,16 @@ +pluginManagement { + repositories { + gradlePluginPortal() + google() + mavenCentral() + } +} +dependencyResolutionManagement { + repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS) + repositories { + google() + mavenCentral() + } +} +//rootProject.name = "Rust Template" +include ':app' diff --git a/examples/na-openxr-info/src/lib.rs b/examples/na-openxr-info/src/lib.rs new file mode 100644 index 0000000..c9d2fc1 --- /dev/null +++ b/examples/na-openxr-info/src/lib.rs @@ -0,0 +1,80 @@ +///! Based on https://github.com/Ralith/openxrs/blob/master/openxr/examples/hello.rs + +use openxr as xr; + +#[cfg(target_os = "android")] +use android_activity::AndroidApp; + +fn _main() { + println!("OpenXR Info"); + + #[cfg(feature = "linked")] + let entry = xr::Entry::linked(); + #[cfg(not(feature = "linked"))] + let entry = unsafe { + xr::Entry::load() + .expect("couldn't find the OpenXR loader; try enabling the \"static\" feature") + }; + + #[cfg(target_os = "android")] + entry.initialize_android_loader().unwrap(); + + let extensions = entry.enumerate_extensions().unwrap(); + println!("supported extensions: {:#?}", extensions); + let layers = entry.enumerate_layers().unwrap(); + println!("supported layers: {:?}", layers); + let instance = entry + .create_instance( + &xr::ApplicationInfo { + application_name: "hello openxrs", + ..Default::default() + }, + &xr::ExtensionSet::default(), + &[], + ) + .unwrap(); + let instance_props = instance.properties().unwrap(); + println!( + "loaded instance: {} v{}", + instance_props.runtime_name, instance_props.runtime_version + ); + + let system = instance + .system(xr::FormFactor::HEAD_MOUNTED_DISPLAY) + .unwrap(); + let system_props = instance.system_properties(system).unwrap(); + println!( + "selected system {}: {}", + system_props.system_id.into_raw(), + if system_props.system_name.is_empty() { + "" + } else { + &system_props.system_name + } + ); + + let view_config_views = instance + .enumerate_view_configuration_views(system, xr::ViewConfigurationType::PRIMARY_STEREO) + .unwrap(); + println!("view configuration views: {:#?}", view_config_views); +} + +#[allow(dead_code)] +#[cfg(target_os = "android")] +#[no_mangle] +fn android_main(_app: AndroidApp) { + android_logger::init_once(android_logger::Config::default().with_min_level(log::Level::Trace)); + + _main(); +} + +#[allow(dead_code)] +#[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