move flutter_filament plugin to federated structure

flutter_filament_federated/flutter_filament/.gitattributes

@@ -0,0 +1,12 @@
+*.a filter=lfs diff=lfs merge=lfs -text
+*.lib filter=lfs diff=lfs merge=lfs -text
+*.dll filter=lfs diff=lfs merge=lfs -text
+*.pdb filter=lfs diff=lfs merge=lfs -text
+*.png filter=lfs diff=lfs merge=lfs -text
+*.jpg filter=lfs diff=lfs merge=lfs -text
+*.uberz filter=lfs diff=lfs merge=lfs -text
+*.bin filter=lfs diff=lfs merge=lfs -text
+*.ktx filter=lfs diff=lfs merge=lfs -text
+*.blend filter=lfs diff=lfs merge=lfs -text
+*.gltf filter=lfs diff=lfs merge=lfs -text
+*.glb filter=lfs diff=lfs merge=lfs -text

flutter_filament_federated/flutter_filament/.gitignore

@@ -0,0 +1,2 @@
+.vscode
+.DS_Store

flutter_filament_federated/flutter_filament/LICENSE

@@ -0,0 +1 @@
+TODO: Add your license here.

flutter_filament_federated/flutter_filament/analysis_options.yaml

@@ -0,0 +1,4 @@
+include: package:flutter_lints/flutter.yaml
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

flutter_filament_federated/flutter_filament/android/.gitignore

@@ -0,0 +1,8 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures

flutter_filament_federated/flutter_filament/android/CMakeLists.txt

@@ -0,0 +1,61 @@
+cmake_minimum_required(VERSION 3.10)  
+
+include_directories(../ios/src)
+include_directories(../ios/include)
+include_directories(../ios/include/filament)
+include_directories(src/main/cpp)
+link_directories(src/main/jniLibs/${ANDROID_ABI}) 
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
+
+add_library(flutter_filament_android SHARED
+  "${CMAKE_CURRENT_SOURCE_DIR}/../ios/src/FlutterFilamentApi.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../ios/src/FlutterFilamentFFIApi.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp/FilamentAndroid.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../ios/src/SceneManager.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../ios/src/FilamentViewer.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../ios/src/StreamBufferAdapter.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../ios/src/TimeIt.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../ios/src/camutils/Manipulator.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../ios/src/camutils/Bookmark.cpp"
+)
+
+add_library(FILAMENT_SHADERS SHARED 
+  "${CMAKE_CURRENT_SOURCE_DIR}/../ios/include/material/image.c"
+)
+
+target_link_libraries(
+  flutter_filament_android
+  FILAMENT_SHADERS
+  -landroid
+  -llog
+  -lgltfio_core 
+  -lfilament 
+  -lbackend 
+  -lgeometry 
+  -lfilameshio 
+  -lfilamat 
+  -lfilabridge
+  -lcamutils 
+  -lfilaflat 
+  -ldracodec 
+  -libl 
+  -lktxreader 
+  -limageio
+  -limage
+  -lutils 
+  -ltinyexr
+  -lstb  
+  -lbluevk 
+  -lvkshaders 
+  -luberzlib 
+  -lsmol-v 
+  -luberarchive 
+  -lmeshoptimizer
+  -lgeometry
+  -lbasis_transcoder
+  -lGLESv3
+  -lEGL
+  -lpng
+  -lz
+  -lzstd
+)

flutter_filament_federated/flutter_filament/android/build.gradle

@@ -0,0 +1,63 @@
+group 'app.polyvox.filament'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    ext.kotlin_version = '1.7.10'
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.3.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion 33
+    ndkVersion '25.2.9519653'
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    defaultConfig {
+        minSdkVersion 22
+        ndk {
+            abiFilters 'arm64-v8a' // 'x86_64' 'armeabi-v7a' 
+        }
+    }
+    
+    externalNativeBuild {
+        cmake {
+            path "CMakeLists.txt"
+            version "3.18.1"
+        }
+    }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+    implementation 'net.java.dev.jna:jna:5.10.0@aar'
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.2"
+}

flutter_filament_federated/flutter_filament/android/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.jvmargs=-Xmx1536M
+android.useAndroidX=true
+android.enableJetifier=true

flutter_filament_federated/flutter_filament/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.3-all.zip

flutter_filament_federated/flutter_filament/android/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'flutter_filament'

flutter_filament_federated/flutter_filament/android/src/main/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="app.polyvox.filament">
+</manifest>

flutter_filament_federated/flutter_filament/android/src/main/cpp/FilamentAndroid.cpp

@@ -0,0 +1,21 @@
+#include <android/native_window_jni.h>
+#include <android/native_activity.h>
+
+extern "C" {
+
+  #include "FlutterFilamentFFIApi.h"
+
+  void* get_native_window_from_surface(
+    jobject surface,
+    JNIEnv* env
+  ) {
+    void* window = ANativeWindow_fromSurface(env, surface);
+    return window;
+  }
+
+  // this does nothing, but we need it for JNA to return the correct pointer 
+  FilamentRenderCallback make_render_callback_fn_pointer(FilamentRenderCallback callback) {
+    return callback;
+  }
+  
+}

flutter_filament_federated/flutter_filament/android/src/main/kotlin/app/polyvox/filament/FilamentInterop.kt

@@ -0,0 +1,48 @@
+package app.polyvox.filament 
+
+import com.sun.jna.ptr.PointerByReference
+import com.sun.jna.ptr.IntByReference
+
+import android.view.Surface
+
+import android.content.res.AssetManager
+import com.sun.jna.*
+
+open class ResourceBuffer: Structure(), Structure.ByValue {
+    @JvmField var data: Pointer = Pointer(0);
+    @JvmField var size: Int = 0;
+    @JvmField var id: Int = 0;
+    override fun getFieldOrder(): List<String> {
+        return listOf("data", "size", "id")
+    }
+}
+
+interface LoadFilamentResourceFromOwner : Callback {
+    fun loadResourceFromOwner(resourceName: String?, owner: Pointer?): ResourceBuffer
+}
+
+interface FreeFilamentResourceFromOwner : Callback {
+    fun freeResourceFromOwner(rb: ResourceBuffer, owner: Pointer?)
+}
+
+interface RenderCallback : Callback { 
+    fun renderCallback(owner:Pointer?)
+}
+
+interface FilamentInterop : Library {
+
+fun get_native_window_from_surface(surface:Object, env:JNIEnv) : Pointer?;
+fun make_render_callback_fn_pointer(renderCallback:RenderCallback) : Pointer
+fun make_resource_loader(loadResourceFromOwner: LoadFilamentResourceFromOwner, freeResource: FreeFilamentResourceFromOwner, owner:Pointer?) : Pointer;
+fun create_filament_viewer_ffi(context:Pointer, platform:Pointer, loader:Pointer, rc:Pointer, rco:Pointer) : Pointer;
+fun create_swap_chain_ffi(vieer:Pointer?, surface:Pointer?, width:Int, height:Int)
+fun set_background_color_ffi(viewer: Pointer?, r: Float, g: Float, b: Float, a: Float)
+fun update_viewport_and_camera_projection_ffi(viewer: Pointer?, width: Int, height: Int, scale_factor: Float)
+fun render_ffi(viewer: Pointer?)
+fun create_filament_viewer(context:Pointer?, platform:Pointer?, loader:Pointer?) : Pointer;
+fun create_swap_chain(vieer:Pointer?, surface:Pointer?, width:Int, height:Int)
+fun set_background_color(viewer: Pointer?, r: Float, g: Float, b: Float, a: Float)
+fun update_viewport_and_camera_projection(viewer: Pointer?, width: Int, height: Int, scale_factor: Float)
+fun render(viewer: Pointer?, u:Long, a:Pointer?, b:Pointer?, c:Pointer?)
+}
+

flutter_filament_federated/flutter_filament/android/src/main/kotlin/app/polyvox/filament/FlutterFilamentPlugin.kt

@@ -0,0 +1,226 @@
+package app.polyvox.filament
+
+
+import HotReloadPathHelper
+import android.app.Activity
+import android.content.res.AssetManager
+import android.graphics.*
+import android.os.Build
+import android.util.Log
+import android.view.Choreographer
+import android.view.Surface
+import androidx.annotation.NonNull
+import androidx.annotation.RequiresApi
+import androidx.lifecycle.Lifecycle
+import com.sun.jna.*
+import io.flutter.FlutterInjector
+import io.flutter.embedding.engine.FlutterJNI
+import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.embedding.engine.plugins.activity.ActivityAware
+import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
+import io.flutter.embedding.engine.plugins.lifecycle.HiddenLifecycleReference
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler
+import io.flutter.view.TextureRegistry.SurfaceTextureEntry
+import java.io.File
+import java.util.*
+
+class LoadFilamentResourceFromOwnerImpl(plugin:FlutterFilamentPlugin) : LoadFilamentResourceFromOwner {
+  var plugin = plugin
+  override fun loadResourceFromOwner(path: String?, owner: Pointer?): ResourceBuffer {
+    return plugin.loadResourceFromOwner(path, owner)
+  }
+} 
+
+class FreeFilamentResourceFromOwnerImpl(plugin:FlutterFilamentPlugin) : FreeFilamentResourceFromOwner {
+  var plugin = plugin
+  override fun freeResourceFromOwner(rb: ResourceBuffer, owner: Pointer?) {
+    plugin.freeResourceFromOwner(rb, owner)
+  }
+} 
+
+class RenderCallbackImpl(plugin:FlutterFilamentPlugin) : RenderCallback {
+  var plugin = plugin
+  override fun renderCallback(owner:Pointer?) {
+    plugin.renderCallback();
+
+    if(!plugin._surface!!.isValid) {
+      Log.e("ERR", "ERR", null)
+    }
+  }
+}
+
+/** FlutterFilamentPlugin */
+class FlutterFilamentPlugin: FlutterPlugin, MethodCallHandler, ActivityAware, LoadFilamentResourceFromOwner, FreeFilamentResourceFromOwner {
+
+  companion object {
+      const val CHANNEL_NAME = "app.polyvox.filament/event"
+      const val TAG = "FilamentPlugin"
+  }
+
+  private lateinit var channel : MethodChannel
+
+  private lateinit var flutterPluginBinding : FlutterPlugin.FlutterPluginBinding
+
+  private var lifecycle: Lifecycle? = null
+
+  private lateinit var _lib : FilamentInterop
+  
+  var _surfaceTexture: SurfaceTexture? = null
+  private var _surfaceTextureEntry: SurfaceTextureEntry? = null
+  var _surface: Surface? = null
+      
+  private lateinit var activity:Activity
+
+  private var loadResourceWrapper:LoadFilamentResourceFromOwnerImpl = LoadFilamentResourceFromOwnerImpl(this)
+  private var freeResourceWrapper:FreeFilamentResourceFromOwnerImpl = FreeFilamentResourceFromOwnerImpl(this)
+
+  override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
+    this.flutterPluginBinding = flutterPluginBinding
+    channel = MethodChannel(flutterPluginBinding.binaryMessenger, CHANNEL_NAME)
+    channel.setMethodCallHandler(this)
+     _lib = Native.loadLibrary("flutter_filament_android", FilamentInterop::class.java, Collections.singletonMap(Library.OPTION_ALLOW_OBJECTS, true))
+  }
+
+  override fun onAttachedToActivity(binding: ActivityPluginBinding) {
+    lifecycle = (binding.lifecycle as? HiddenLifecycleReference)?.lifecycle
+    activity = binding.activity
+    activity.window.setFormat(PixelFormat.RGBA_8888)
+  }
+
+  val _resources:MutableMap<ResourceBuffer,Memory> = mutableMapOf();
+  var _lastId = 1
+
+  override fun loadResourceFromOwner(path: String?, owner: Pointer?): ResourceBuffer {
+      Log.i("flutter_filament", "Loading resource from path $path")
+      var data:ByteArray? = null
+      if(path!!.startsWith("file://")) {
+          data = File(path!!.substring(6)).readBytes()
+      } else {
+          var assetPath = path
+          if(assetPath.startsWith("asset://")) {
+            assetPath = assetPath!!.substring(8)
+          }
+          val loader = FlutterInjector.instance().flutterLoader()
+          val key = loader.getLookupKeyForAsset(assetPath)
+          val hotReloadPath = HotReloadPathHelper.getAssetPath(key, activity.getPackageName())
+          if (hotReloadPath != null) {
+              data = File(hotReloadPath).readBytes()
+          } else {
+              Log.i("flutter_filament", "Loading resource from main asset bundle at ${assetPath}")
+
+              val assetManager: AssetManager = activity.assets
+              try {
+                  data = assetManager.open(key).readBytes()
+                  Log.i("flutter_filament", "Loaded ${data.size} bytes")
+              } catch (e:Exception) {
+                  Log.e("flutter_filament", "Failed to open asset at ${assetPath}", null)
+              }
+          }
+      }
+      val rb = ResourceBuffer();
+      try {
+          if (data != null) {
+              val dataPtr = Memory(data.size.toLong())
+              dataPtr.write(0, data, 0, data.size)
+              rb.data = dataPtr
+              rb.size = data.size
+              rb.id = _lastId
+              _resources[rb] = dataPtr;
+              _lastId++
+          } else {
+              rb.id = 0
+              rb.size = 0
+              rb.data = Pointer(0)
+          }
+      } catch(e:Exception) {
+          Log.e("flutter_filament", "Error setting resource buffer : $e", null);
+      }
+      rb.write();
+      return rb;
+
+  }
+
+  override fun freeResourceFromOwner(rb: ResourceBuffer, owner: Pointer?) {
+    _resources.remove(rb)
+  }
+
+  fun renderCallback() {
+    // noop, log or check surface.valid() is you want 
+  }
+
+
+  @RequiresApi(Build.VERSION_CODES.M)
+  override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
+    Log.e("flutter_filament", call.method, null)
+    when (call.method) {
+        "createTexture" -> {
+          if(_surfaceTextureEntry != null) {
+            result.error("TEXTURE_EXISTS", "Texture already exist. Make sure you call destroyTexture first", null)
+            return
+          }
+          val args = call.arguments as List<*>
+          val width = args[0] as Double
+          val height = args[1] as Double
+          if(width <1 || height < 1) {
+              result.error("DIMENSION_MISMATCH","Both dimensions must be greater than zero (you provided $width x $height)", null);
+              return;
+          }
+          Log.i("flutter_filament", "Creating Surface Texture of size ${width}x${height}");
+          
+          _surfaceTextureEntry = flutterPluginBinding.textureRegistry.createSurfaceTexture()
+          _surfaceTexture = _surfaceTextureEntry!!.surfaceTexture();
+          _surfaceTexture!!.setDefaultBufferSize(width.toInt(), height.toInt())
+
+          _surface = Surface(_surfaceTexture)
+
+          if(!_surface!!.isValid) {
+              Log.e("ERR", "ERR", null)
+          }
+
+          val nativeWindow = _lib.get_native_window_from_surface(_surface!! as Object, JNIEnv.CURRENT)
+        
+          val resultList = listOf(_surfaceTextureEntry!!.id(), Pointer.nativeValue(nativeWindow), null, null )
+          
+          result.success(resultList)
+        }
+        "getResourceLoaderWrapper" -> { 
+          val resourceLoader = _lib.make_resource_loader(loadResourceWrapper, freeResourceWrapper, Pointer(0))
+          result.success(Pointer.nativeValue(resourceLoader))
+        }
+        "getRenderCallback" -> {
+          val renderCallbackFnPointer = _lib.make_render_callback_fn_pointer(RenderCallbackImpl(this))
+          result.success(listOf(Pointer.nativeValue(renderCallbackFnPointer), 0))
+        }
+        "destroyTexture" -> {
+          _surface!!.release();
+          _surfaceTextureEntry!!.release();
+          _surface = null
+          _surfaceTextureEntry = null
+          result.success(true)
+        }
+        else -> {
+          result.notImplemented()
+        }
+    }
+}
+
+  override fun onDetachedFromEngine(@NonNull binding: FlutterPlugin.FlutterPluginBinding) {
+    channel.setMethodCallHandler(null)
+  }
+
+  
+  override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
+    onAttachedToActivity(binding)
+  }
+
+  override fun onDetachedFromActivityForConfigChanges() {
+    onDetachedFromActivity()
+  }
+
+  override fun onDetachedFromActivity() {
+    lifecycle = null
+  }
+
+}

flutter_filament_federated/flutter_filament/android/src/main/kotlin/app/polyvox/filament/HotReloadPathHelper.kt

@@ -0,0 +1,28 @@
+import java.io.*
+import java.nio.file.FileSystems
+import java.nio.file.Files
+import java.nio.file.Path
+import kotlin.io.path.absolutePathString
+import kotlin.io.path.listDirectoryEntries
+import android.util.Log
+
+
+class HotReloadPathHelper {
+    companion object {
+        fun getAssetPath(path: String, packageName: String): String? {
+            val packagePath = "/data/user/0/${packageName}/code_cache/"
+            Log.v("flutter_filament", "Looking for hot reloaded asset ${path} under package path ${packagePath}")
+            val files = File(packagePath).walkBottomUp().filter {
+              it.path.endsWith(path)
+            }.sortedBy {
+              it.lastModified()
+            }.toList()
+            if(files.size > 0) {
+              Log.v("flutter_filament", "Using hot reloaded asset at ${files.last().path}")
+              return files.last().path;
+            }
+            Log.v("flutter_filament", "No hot reloaded asset found.")
+            return null;
+          }
+    }
+}

flutter_filament_federated/flutter_filament/docs/drawing.svg

@@ -0,0 +1,313 @@
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+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
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+   width="698.05615mm"
+   height="271.6131mm"
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+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
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+    <text
+       xml:space="preserve"
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+         y="57.530262">FlutterFilamentFFI</tspan></text>
+    <text
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+         y="60.701408">FilamentViewer / Filament Engine (etc)</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:12.7px;font-family:'HarmonyOS Sans SC';-inkscape-font-specification:'HarmonyOS Sans SC';text-align:center;letter-spacing:0px;text-anchor:middle;fill:#ffffff;fill-opacity:0;stroke:#000000;stroke-width:1.32292;stroke-miterlimit:4.7"
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+         x="472.51691"
+         y="10.943201">Render thread</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:12.7px;font-family:'HarmonyOS Sans SC';-inkscape-font-specification:'HarmonyOS Sans SC';text-align:center;letter-spacing:0px;text-anchor:middle;fill:#ffffff;fill-opacity:0;stroke:#000000;stroke-width:1.32292;stroke-miterlimit:4.7"
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+         x="69.463997"
+         y="14.792676">Main Flutter Thread</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:12.7px;font-family:'HarmonyOS Sans SC';-inkscape-font-specification:'HarmonyOS Sans SC';text-align:center;letter-spacing:0px;text-anchor:middle;fill:#ffffff;fill-opacity:0;stroke:#000000;stroke-width:1.32292;stroke-miterlimit:4.7"
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+    <path
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+         id="tspan2610"
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+         sodipodi:role="line"
+         style="font-size:6.35px;stroke-width:1.32292"
+         x="83.648346"
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+    <text
+       xml:space="preserve"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:6.35px;font-family:Arial;-inkscape-font-specification:Arial;text-align:center;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1.32292;stroke-miterlimit:4.7;stroke-dasharray:none"
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+  </g>
+</svg>

flutter_filament_federated/flutter_filament/example/.fvm/fvm_config.json

@@ -0,0 +1,4 @@
+{
+  "flutterSdkVersion": "3.16.0-0.2.pre",
+  "flavors": {}
+}

flutter_filament_federated/flutter_filament/example/.gitattributes

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+assets/lit_opaque_43.uberz filter=lfs diff=lfs merge=lfs -text
+assets/BusterDrone filter=lfs diff=lfs merge=lfs -text
+assets/FlightHelmet filter=lfs diff=lfs merge=lfs -text
+assets/lit_opaque_32.uberz filter=lfs diff=lfs merge=lfs -text
+windows/lib/**/*.* filter=lfs diff=lfs merge=lfs -text
+integration_test/goldens/ios/12_Settonemappingtolinear.png filter=lfs diff=lfs merge=lfs -text
+integration_test/goldens/ios/3_loadIBL.png filter=lfs diff=lfs merge=lfs -text
+integration_test/goldens/ios/6_zoomin.png filter=lfs diff=lfs merge=lfs -text
+integration_test/goldens/ios/13_Movecameratoasset.png filter=lfs diff=lfs merge=lfs -text
+integration_test/goldens/ios/14_movecamerato.png filter=lfs diff=lfs merge=lfs -text
+integration_test/goldens/ios/7_rotate.png filter=lfs diff=lfs merge=lfs -text
+integration_test/goldens/ios/9_transformtounitcube.png filter=lfs diff=lfs merge=lfs -text
+integration_test/goldens/ios/0_fresh.png filter=lfs diff=lfs merge=lfs -text
+integration_test/goldens/ios/10_setshapespositionto.png filter=lfs diff=lfs merge=lfs -text
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flutter_filament_federated/flutter_filament/example/.gitignore

@@ -0,0 +1,51 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release
+
+/android/.cxx/**/*
+
+# fvm
+.fvm/flutter_sdk

flutter_filament_federated/flutter_filament/example/.metadata

@@ -0,0 +1,30 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "12d54de962782853206992fedce29723fcb4a95b"
+  channel: "master"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 12d54de962782853206992fedce29723fcb4a95b
+      base_revision: 12d54de962782853206992fedce29723fcb4a95b
+    - platform: macos
+      create_revision: 12d54de962782853206992fedce29723fcb4a95b
+      base_revision: 12d54de962782853206992fedce29723fcb4a95b
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

flutter_filament_federated/flutter_filament/example/README.md

@@ -0,0 +1,21 @@
+# flutter_filament_example
+
+Demonstrates how to use the flutter_filament plugin.
+
+## Linux
+
+export PKG_CONFIG_PATH=/usr/lib/pkgconfig/:/usr/lib64/pkgconfig/
+export CPLUS_INCLUDE_PATH=/usr/include/gtk-3.0/:/usr/include/pango-1.0/:/usr/include/harfbuzz:/usr/include/cairo/:/usr/include/gdk-pixbuf-2.0/:/usr/include/atk-1.0/
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://flutter.dev/docs/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://flutter.dev/docs/cookbook)
+
+For help getting started with Flutter, view our
+[online documentation](https://flutter.dev/docs), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

flutter_filament_federated/flutter_filament/example/analysis_options.yaml

@@ -0,0 +1,29 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at
+  # https://dart-lang.github.io/linter/lints/index.html.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

flutter_filament_federated/flutter_filament/example/android/.gitignore

@@ -0,0 +1,15 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks

flutter_filament_federated/flutter_filament/example/android/app/build.gradle

@@ -0,0 +1,81 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 34
+    ndkVersion "25.2.9519653"
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    defaultConfig {
+        applicationId "app.polyvox.flutter_filament_example"
+        minSdkVersion 22
+        targetSdkVersion 31
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+        ndk {
+            abiFilters 'arm64-v8a' // 'x86_64' 'armeabi-v7a' 
+        }
+    }
+
+    buildTypes {
+        release {
+            signingConfig signingConfigs.debug
+            minifyEnabled true
+            shrinkResources true
+            proguardFiles getDefaultProguardFile(
+                    'proguard-android-optimize.txt'),
+                    'proguard-rules.pro'
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.2"
+    implementation "androidx.annotation:annotation:1.3.0"
+    implementation "androidx.core:core:1.7.0"
+    implementation 'net.java.dev.jna:jna:5.10.0@aar'
+}

flutter_filament_federated/flutter_filament/example/android/app/proguard-rules.pro

@@ -0,0 +1,9 @@
+-keep class io.flutter.app.** { *; }
+-keep class io.flutter.plugin.**  { *; }
+-keep class io.flutter.util.**  { *; }
+-keep class io.flutter.view.**  { *; }
+-keep class io.flutter.**  { *; }
+-keep class io.flutter.plugins.**  { *; }
+-dontwarn java.awt.*
+-keep class com.sun.jna.* { *; }
+-keepclassmembers class * extends com.sun.jna.* { public *; }

flutter_filament_federated/flutter_filament/example/android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="app.polyvox.flutter_filament_example">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

flutter_filament_federated/flutter_filament/example/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,46 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="app.polyvox.flutter_filament_example">
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+   <application
+        android:name="${applicationName}"
+        android:label="flutter_filament_example"
+        android:icon="@mipmap/ic_launcher"
+        android:theme="@android:style/Theme.Translucent.NoTitleBar"
+        >
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize"
+            android:exported="true">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <!-- Displays an Android View that continues showing the launch screen
+                 Drawable until Flutter paints its first frame, then this splash
+                 screen fades out. A splash screen is useful to avoid any visual
+                 gap between the end of Android's launch screen and the painting of
+                 Flutter's first frame. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.SplashScreenDrawable"
+              android:resource="@drawable/launch_background"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+</manifest>

flutter_filament_federated/flutter_filament/example/android/app/src/main/kotlin/app/polyvox/flutter_filament_example/MainActivity.kt

@@ -0,0 +1,10 @@
+package app.polyvox.flutter_filament_example
+
+import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.android.TransparencyMode
+
+class MainActivity: FlutterActivity() {
+    override fun getTransparencyMode(): TransparencyMode {
+        return TransparencyMode.transparent
+    }
+}

flutter_filament_federated/flutter_filament/example/android/app/src/main/res/drawable-v21/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

flutter_filament_federated/flutter_filament/example/android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

flutter_filament_federated/flutter_filament/example/android/app/src/main/res/values-night/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+         
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

flutter_filament_federated/flutter_filament/example/android/app/src/main/res/values/styles.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowIsTranslucent">true</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+    </style>
+</resources>

flutter_filament_federated/flutter_filament/example/android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="app.polyvox.flutter_filament_example">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

flutter_filament_federated/flutter_filament/example/android/build.gradle

@@ -0,0 +1,30 @@
+buildscript {
+    ext.kotlin_version = '1.6.0'
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+    project.evaluationDependsOn(':app')
+}
+
+tasks.register("clean", Delete) {
+    delete rootProject.buildDir
+}

flutter_filament_federated/flutter_filament/example/android/gradle.properties

@@ -0,0 +1,9 @@
+org.gradle.jvmargs=-Xmx1536M \
+--add-exports=java.base/sun.nio.ch=ALL-UNNAMED \
+--add-opens=java.base/java.lang=ALL-UNNAMED \
+--add-opens=java.base/java.lang.reflect=ALL-UNNAMED \
+--add-opens=java.base/java.io=ALL-UNNAMED \
+--add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED
+android.useAndroidX=true
+android.enableJetifier=true
+

flutter_filament_federated/flutter_filament/example/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.3-all.zip

flutter_filament_federated/flutter_filament/example/android/settings.gradle

@@ -0,0 +1,15 @@
+include ':app'
+
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
+
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}

flutter_filament_federated/flutter_filament/example/assets/FlightHelmet/FlightHelmet.gltf

@@ -0,0 +1,755 @@
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+    {
+      "name": "FlightHelmet_baseColor",
+      "uri": "FlightHelmet_baseColor.png"
+    },
+    {
+      "name": "FlightHelmet_occlusionRoughnessMetallic",
+      "uri": "FlightHelmet_occlusionRoughnessMetallic.png"
+    },
+    {
+      "name": "FlightHelmet_normal",
+      "uri": "FlightHelmet_normal.png"
+    },
+    {
+      "name": "FlightHelmet_baseColor1",
+      "uri": "FlightHelmet_baseColor1.png"
+    },
+    {
+      "name": "FlightHelmet_occlusionRoughnessMetallic1",
+      "uri": "FlightHelmet_occlusionRoughnessMetallic1.png"
+    },
+    {
+      "name": "FlightHelmet_normal1",
+      "uri": "FlightHelmet_normal1.png"
+    },
+    {
+      "name": "FlightHelmet_baseColor2",
+      "uri": "FlightHelmet_baseColor2.png"
+    },
+    {
+      "name": "FlightHelmet_occlusionRoughnessMetallic2",
+      "uri": "FlightHelmet_occlusionRoughnessMetallic2.png"
+    },
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+      "name": "FlightHelmet_normal2",
+      "uri": "FlightHelmet_normal2.png"
+    },
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+      "name": "FlightHelmet_baseColor3",
+      "uri": "FlightHelmet_baseColor3.png"
+    },
+    {
+      "name": "FlightHelmet_occlusionRoughnessMetallic3",
+      "uri": "FlightHelmet_occlusionRoughnessMetallic3.png"
+    },
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+      "name": "FlightHelmet_normal3",
+      "uri": "FlightHelmet_normal3.png"
+    },
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+      "name": "FlightHelmet_baseColor4",
+      "uri": "FlightHelmet_baseColor4.png"
+    },
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+      "name": "FlightHelmet_occlusionRoughnessMetallic4",
+      "uri": "FlightHelmet_occlusionRoughnessMetallic4.png"
+    },
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+      "uri": "FlightHelmet_normal4.png"
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+          }
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+    },
+    {
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+              }
+            }
+          }
+        }
+      ],
+      "name": "MetalParts_low"
+    },
+    {
+      "primitives": [
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+                "POSITION": 3
+              }
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+          }
+        }
+      ],
+      "name": "RubberWood_low"
+    }
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+      "alphaMode": "OPAQUE",
+      "doubleSided": false
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+        "roughnessFactor": 1
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+        "texCoord": 0
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+        "texCoord": 0
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+      "name": "RubberWoodMat",
+      "emissiveFactor": [
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+        0,
+        0
+      ],
+      "alphaMode": "OPAQUE"
+    }
+  ],
+  "nodes": [
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+      "translation": [
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+        0,
+        0,
+        1
+      ],
+      "scale": [
+        1,
+        1,
+        1
+      ]
+    },
+    {
+      "mesh": 2,
+      "name": "Lenses_low"
+    },
+    {
+      "mesh": 3,
+      "translation": [
+        0.0331545,
+        -0.1488645,
+        -0.0242879968
+      ],
+      "name": "MetalParts_low",
+      "rotation": [
+        0,
+        0,
+        0,
+        1
+      ],
+      "scale": [
+        1,
+        1,
+        1
+      ]
+    },
+    {
+      "mesh": 4,
+      "translation": [
+        -0.00190849893,
+        -0.111985,
+        -0.013313001
+      ],
+      "name": "RubberWood_low",
+      "rotation": [
+        0,
+        0,
+        0,
+        1
+      ],
+      "scale": [
+        1,
+        1,
+        1
+      ]
+    },
+    {
+      "children": [
+        0,
+        1,
+        2,
+        3,
+        4
+      ],
+      "rotation": [
+        0,
+        1,
+        0,
+        0
+      ],
+      "name": "FlightHelmet",
+      "translation": [
+        0,
+        0,
+        0
+      ],
+      "scale": [
+        1,
+        1,
+        1
+      ]
+    }
+  ],
+  "scene": 0,
+  "scenes": [
+    {
+      "nodes": [
+        5
+      ]
+    }
+  ],
+  "textures": [
+    {
+      "source": 0
+    },
+    {
+      "source": 1
+    },
+    {
+      "source": 2
+    },
+    {
+      "source": 3
+    },
+    {
+      "source": 4
+    },
+    {
+      "source": 5
+    },
+    {
+      "source": 6
+    },
+    {
+      "source": 7
+    },
+    {
+      "source": 8
+    },
+    {
+      "source": 9
+    },
+    {
+      "source": 10
+    },
+    {
+      "source": 11
+    },
+    {
+      "source": 12
+    },
+    {
+      "source": 13
+    },
+    {
+      "source": 14
+    }
+  ],
+  "extensionsRequired": [
+    "KHR_draco_mesh_compression"
+  ],
+  "extensionsUsed": [
+    "KHR_draco_mesh_compression"
+  ]
+}

flutter_filament_federated/flutter_filament/example/assets/FlightHelmet/README.md

@@ -0,0 +1,16 @@
+# Flight Helmet
+
+## Screenshot
+
+![screenshot](screenshot/screenshot.jpg)
+
+## License Information
+
+Donated by Microsoft for glTF testing
+
+[![CC0](http://i.creativecommons.org/p/zero/1.0/88x31.png)](http://creativecommons.org/publicdomain/zero/1.0/)  
+To the extent possible under law, Microsoft has waived all copyright and related or neighboring rights to this asset.
+
+Draco compression was done via Cesium tools on 27-03-2020 as follows.
+
+    gltf-pipeline -i FlightHelmet.gltf -o FlightHelmet.gltf -d -s --keep-unused-elements

flutter_filament_federated/flutter_filament/example/assets/solidcolor.mat

@@ -0,0 +1,14 @@
+material {
+    name : SolidColor,
+    shadingModel : unlit,
+    culling : none,
+    featureLevel : 1,
+    vertexDomain: object
+}
+
+fragment {
+    void material(inout MaterialInputs material) {
+        prepareMaterial(material);
+        material.baseColor = vec4(0.1f, 0.5f, 0.9f, 1.0f);
+    }
+}

flutter_filament_federated/flutter_filament/example/compare_goldens.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+device=$1
+if [ -z "$device" ]; then
+    echo "Usage: $0 <device_id>"
+    exit 1;
+fi
+
+rm -f integration_test/goldens/{ios,macos,windows,android}/diffs/*.png
+flutter drive --driver=test_driver/integration_test.dart  -d $1 --target=integration_test/plugin_integration_test.dart