Merge pull request #30 from am15h/v0.5.0

v0.5.0

Author: am15h

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.5.0 (Jul 17, 2020)
+* Expose interpreter's address
+* Create interpreter by address.
+
 ## 0.4.2 (Jul 6, 2020)
 * Optimize getTensors and getTensor by Index
 * Update readme

example/test/tflite_flutter_plugin_example_e2e.dart

@@ -3,6 +3,7 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:io';
+import 'dart:isolate';
 import 'dart:typed_data';
 
 import 'package:flutter/services.dart';
@@ -20,6 +21,7 @@ final int64FileName = 'int64.bin';
 final multiInputFileName = 'multi_add.bin';
 final addFileName = 'add.bin';
 
+//flutter drive --driver=test_driver/tflite_flutter_plugin_example_e2e_test.dart test/tflite_flutter_plugin_example_e2e.dart
 void main() {
   E2EWidgetsFlutterBinding.ensureInitialized();
 
@@ -45,6 +47,13 @@ void main() {
     interpreter.close();
   });
 
+  test('interpreter from address', () async {
+    final interpreter = await tfl.Interpreter.fromAsset('test/$dataFileName');
+    final interpreter2 = tfl.Interpreter.fromAddress(interpreter.address);
+    interpreter.close();
+    interpreter2.close();
+  });
+
   group('interpreter options', () {
     test('default', () async {
       final dataFile = await getFile(dataFileName);

lib/src/interpreter.dart

@@ -127,6 +127,17 @@ class Interpreter {
     return rawBytes;
   }
 
+  /// Creates interpreter from an address.
+  ///
+  /// Typically used for passing interpreter between isolates.
+  factory Interpreter.fromAddress(int address,
+      {bool allocated: false, bool deleted: false}) {
+    final interpreter = Pointer<TfLiteInterpreter>.fromAddress(address);
+    return Interpreter._(interpreter)
+      .._deleted = deleted
+      .._allocated = allocated;
+  }
+
   /// Destroys the interpreter instance.
   void close() {
     checkState(!_deleted, message: 'Interpreter already deleted.');
@@ -295,6 +306,13 @@ class Interpreter {
     }
   }
 
+  /// Returns the address to the interpreter
+  int get address => _interpreter.address;
+
+  bool get isAllocated => _allocated;
+
+  bool get isDeleted => _deleted;
+
   //TODO: (JAVA) void modifyGraphWithDelegate(Delegate delegate)
   //TODO: (JAVA) void resetVariableTensors()
 

pubspec.yaml

@@ -1,10 +1,11 @@
 name: tflite_flutter
 description: TensorFlow Lite Flutter plugin provides easy, flexible and fast Dart API to integrate TFLite models in flutter apps.
-version: 0.4.2
+version: 0.5.0
 homepage: https://github.com/am15h/tflite_flutter_plugin
 
 environment:
   sdk: ">=2.6.0 <3.0.0"
+  flutter: ">=1.12.0 <2.0.0"
 
 dependencies:
   flutter:
@@ -29,8 +30,12 @@ flutter:
   # be modified. They are used by the tooling to maintain consistency when
   # adding or updating assets for this project.
   plugin:
-    androidPackage: com.tfliteflutter.tflite_flutter_plugin
-    pluginClass: TfliteFlutterPlugin
+    platforms:
+      android:
+        package: com.tfliteflutter.tflite_flutter_plugin
+        pluginClass: TfliteFlutterPlugin
+      ios:
+        pluginClass: TfliteFlutterPlugin  
 
   # To add assets to your plugin package, add an assets section, like this:
   # assets: