first commit

.gitignore

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+*.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
+.idea

CMakeLists.txt

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+# For more information about using CMake with Android Studio, read the
+# documentation: https://d.android.com/studio/projects/add-native-code.html
+
+# Sets the minimum version of CMake required to build the native library.
+
+cmake_minimum_required(VERSION 3.4.1)
+
+# build native_app_glue as a static lib
+set(APP_GLUE_DIR ${ANDROID_NDK}/sources/android/native_app_glue)
+include_directories(${APP_GLUE_DIR})
+add_library( app-glue STATIC ${APP_GLUE_DIR}/android_native_app_glue.c)
+
+
+add_definitions(-DXR_USE_PLATFORM_ANDROID)
+# add_definitions(-DXR_USE_GRAPHICS_API_OPENGL_ES)
+add_definitions(-DXR_USE_GRAPHICS_API_VULKAN)
+set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate")
+
+
+file(GLOB LOCAL_HEADERS  "hello_xr/*.h")
+file(GLOB LOCAL_SOURCE   "hello_xr/*.cpp")
+file(GLOB VULKAN_SHADERS "hello_xr/vulkan_shaders/*.glsl")
+
+LINK_DIRECTORIES(openxr_loader/${ANDROID_ABI})
+include_directories(openxr_loader/include)
+
+add_library( # Sets the name of the library.
+        hello_xr
+		SHARED
+        ${LOCAL_SOURCE}
+        ${LOCAL_HEADERS}
+		${VULKAN_SHADERS}
+        openxr_loader/include/common/gfxwrapper_opengl.c
+		)
+
+target_compile_features(hello_xr PUBLIC cxx_std_17)
+
+source_group("Headers" FILES ${LOCAL_HEADERS})
+source_group("Shaders" FILES ${VULKAN_SHADERS})
+
+
+if(VulkanHeaders_INCLUDE_DIRS)
+    target_include_directories(hello_xr
+            PRIVATE
+            ${VulkanHeaders_INCLUDE_DIRS}
+            )
+endif()
+
+if(Vulkan_LIBRARY)
+    target_link_libraries(hello_xr ${Vulkan_LIBRARY})
+endif()
+
+# Specifies libraries CMake should link to your target library. You
+# can link multiple libraries, such as libraries you define in this
+# build script, prebuilt third-party libraries, or system libraries.
+
+find_package(OpenAL CONFIG REQUIRED)
+target_link_libraries(hello_xr OpenAL::OpenAL)
+
+find_package(FreeALUT CONFIG REQUIRED)
+target_link_libraries(hello_xr FreeALUT::alut)
+
+find_package(glm CONFIG REQUIRED)
+target_link_libraries(hello_xr glm::glm)
+
+find_path(TINYGLTF_INCLUDE_DIRS "tiny_gltf.h")
+target_include_directories(hello_xr PRIVATE ${TINYGLTF_INCLUDE_DIRS})
+
+find_package(fmt CONFIG REQUIRED)
+target_link_libraries(hello_xr fmt::fmt)
+
+find_package(OpenXR CONFIG REQUIRED)
+target_link_libraries(hello_xr OpenXR::headers)
+
+#find_package(libsoundio CONFIG REQUIRED)
+#target_link_libraries(hello_xr libsoundio::libsoundio libsoundio::libsoundio_static)
+
+target_link_libraries( # Specifies the target library.
+                       hello_xr
+                       openxr_loader
+                       android
+                       vulkan
+                       EGL
+                       GLESv3
+                       OpenSLES
+                       app-glue
+                       log
+#						aaudio
+                       )
+

build.gradle

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+buildscript {
+    repositories {
+        maven{ url'https://maven.aliyun.com/nexus/content/groups/public/'}
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.3.1'
+    }
+}
+
+allprojects {
+    repositories {
+        maven{ url'https://maven.aliyun.com/nexus/content/groups/public/'}
+        google()
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 29
+
+    defaultConfig {
+        def properties = new Properties()
+        properties.load(project.rootProject.file('local.properties').newDataInputStream())
+        def vcpkg_root = properties.getProperty("vcpkg_root")
+        def sdk_dir = properties.getProperty("sdk.dir")
+
+        applicationId "com.khronos.hello_xr"
+        minSdkVersion 26
+        targetSdkVersion 26
+        versionCode  201
+        versionName  "2.0.1"
+
+
+        shaders {
+            glslcArgs.addAll(['-c', '-g'])
+        }
+        externalNativeBuild {
+            cmake {
+                // abiFilters "armeabi-v7a","arm64-v8a"
+                abiFilters "arm64-v8a"
+                // arguments '-DANDROID_TOOLCHAIN=clang', '-DANDROID_STL=c++_static'
+                arguments "-DCMAKE_TOOLCHAIN_FILE=${vcpkg_root}/scripts/buildsystems/vcpkg.cmake",
+                        "-DVCPKG_CHAINLOAD_TOOLCHAIN_FILE=${sdk_dir}/ndk/23.1.7779620/build/cmake/android.toolchain.cmake",
+                        "-DVCPKG_TARGET_TRIPLET=arm64-android",
+                        "-DANDROID_ABI=arm64-v8a"
+            }
+        }
+
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    sourceSets {
+        main {
+            java.srcDirs    = ['hello_xr/java']
+            jni.srcDirs     = ['hello_xr']
+            jniLibs.srcDirs = ['openxr_loader']
+            manifest.srcFile 'hello_xr/AndroidManifest.xml'
+        }
+    }
+
+    externalNativeBuild {
+        cmake {
+            path "CMakeLists.txt"
+            version "3.10.2"
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'openxr_loader', include: ['*.jar','*.aar'])
+}
+

gradle.properties

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+# 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=-Xmx1536m
+# 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
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true
+

gradle/wrapper/gradle-wrapper.properties

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+#Wed Apr 08 16:50:05 CST 2020
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-all.zip

gradlew

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+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  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 "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+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, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$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`="\"$arg\""
+        fi
+        i=$((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"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"