diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b9d7f25 --- /dev/null +++ b/.gitignore @@ -0,0 +1,33 @@ +# Miscellaneous +*.class +*.log +*.pyc +*.swp +.DS_Store +.atom/ +.build/ +.buildlog/ +.history +.svn/ +.swiftpm/ +migrate_working_dir/ + +# 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 +# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock. +/pubspec.lock +**/doc/api/ +.dart_tool/ +.flutter-plugins-dependencies +/build/ +/coverage/ diff --git a/.metadata b/.metadata new file mode 100644 index 0000000..49fbb34 --- /dev/null +++ b/.metadata @@ -0,0 +1,33 @@ +# 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: "66dd93f9a27ffe2a9bfc8297506ce066ff51265f" + channel: "stable" + +project_type: plugin_ffi + +# Tracks metadata for the flutter migrate command +migration: + platforms: + - platform: root + create_revision: 66dd93f9a27ffe2a9bfc8297506ce066ff51265f + base_revision: 66dd93f9a27ffe2a9bfc8297506ce066ff51265f + - platform: android + create_revision: 66dd93f9a27ffe2a9bfc8297506ce066ff51265f + base_revision: 66dd93f9a27ffe2a9bfc8297506ce066ff51265f + - platform: ios + create_revision: 66dd93f9a27ffe2a9bfc8297506ce066ff51265f + base_revision: 66dd93f9a27ffe2a9bfc8297506ce066ff51265f + + # 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' diff --git a/CHANGELOG.md b/CHANGELOG.md new file mode 100644 index 0000000..41cc7d8 --- /dev/null +++ b/CHANGELOG.md @@ -0,0 +1,3 @@ +## 0.0.1 + +* TODO: Describe initial release. diff --git a/README.md b/README.md new file mode 100644 index 0000000..95f3582 --- /dev/null +++ b/README.md @@ -0,0 +1,92 @@ +# image_ffi + +A new Flutter FFI plugin project. + +## Getting Started + +This project is a starting point for a Flutter +[FFI plugin](https://flutter.dev/to/ffi-package), +a specialized package that includes native code directly invoked with Dart FFI. + +## Project structure + +This template uses the following structure: + +* `src`: Contains the native source code, and a CmakeFile.txt file for building + that source code into a dynamic library. + +* `lib`: Contains the Dart code that defines the API of the plugin, and which + calls into the native code using `dart:ffi`. + +* platform folders (`android`, `ios`, `windows`, etc.): Contains the build files + for building and bundling the native code library with the platform application. + +## Building and bundling native code + +The `pubspec.yaml` specifies FFI plugins as follows: + +```yaml + plugin: + platforms: + some_platform: + ffiPlugin: true +``` + +This configuration invokes the native build for the various target platforms +and bundles the binaries in Flutter applications using these FFI plugins. + +This can be combined with dartPluginClass, such as when FFI is used for the +implementation of one platform in a federated plugin: + +```yaml + plugin: + implements: some_other_plugin + platforms: + some_platform: + dartPluginClass: SomeClass + ffiPlugin: true +``` + +A plugin can have both FFI and method channels: + +```yaml + plugin: + platforms: + some_platform: + pluginClass: SomeName + ffiPlugin: true +``` + +The native build systems that are invoked by FFI (and method channel) plugins are: + +* For Android: Gradle, which invokes the Android NDK for native builds. + * See the documentation in android/build.gradle. +* For iOS and MacOS: Xcode, via CocoaPods. + * See the documentation in ios/image_ffi.podspec. + * See the documentation in macos/image_ffi.podspec. +* For Linux and Windows: CMake. + * See the documentation in linux/CMakeLists.txt. + * See the documentation in windows/CMakeLists.txt. + +## Binding to native code + +To use the native code, bindings in Dart are needed. +To avoid writing these by hand, they are generated from the header file +(`src/image_ffi.h`) by `package:ffigen`. +Regenerate the bindings by running `dart run ffigen --config ffigen.yaml`. + +## Invoking native code + +Very short-running native functions can be directly invoked from any isolate. +For example, see `sum` in `lib/image_ffi.dart`. + +Longer-running functions should be invoked on a helper isolate to avoid +dropping frames in Flutter applications. +For example, see `sumAsync` in `lib/image_ffi.dart`. + +## Flutter help + +For help getting started with Flutter, view our +[online documentation](https://docs.flutter.dev), which offers tutorials, +samples, guidance on mobile development, and a full API reference. + diff --git a/analysis_options.yaml b/analysis_options.yaml new file mode 100644 index 0000000..a5744c1 --- /dev/null +++ b/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 diff --git a/android/.gitignore b/android/.gitignore new file mode 100644 index 0000000..161bdcd --- /dev/null +++ b/android/.gitignore @@ -0,0 +1,9 @@ +*.iml +.gradle +/local.properties +/.idea/workspace.xml +/.idea/libraries +.DS_Store +/build +/captures +.cxx diff --git a/android/build.gradle b/android/build.gradle new file mode 100644 index 0000000..cc50e66 --- /dev/null +++ b/android/build.gradle @@ -0,0 +1,63 @@ +// The Android Gradle Plugin builds the native code with the Android NDK. + +group = "dr1009.com.image_ffi" +version = "1.0" + +buildscript { + repositories { + google() + mavenCentral() + } + + dependencies { + // The Android Gradle Plugin knows how to build native code with the NDK. + classpath("com.android.tools.build:gradle:8.11.1") + } +} + +rootProject.allprojects { + repositories { + google() + mavenCentral() + } +} + +apply plugin: "com.android.library" + +android { + namespace = "dr1009.com.image_ffi" + + // Bumping the plugin compileSdk version requires all clients of this plugin + // to bump the version in their app. + compileSdk = 36 + + // Use the NDK version + // declared in /android/app/build.gradle file of the Flutter project. + // Replace it with a version number if this plugin requires a specific NDK version. + // (e.g. ndkVersion "23.1.7779620") + ndkVersion = android.ndkVersion + + // Invoke the shared CMake build with the Android Gradle Plugin. + externalNativeBuild { + cmake { + path = "../src/CMakeLists.txt" + + // The default CMake version for the Android Gradle Plugin is 3.10.2. + // https://developer.android.com/studio/projects/install-ndk#vanilla_cmake + // + // The Flutter tooling requires that developers have CMake 3.10 or later + // installed. You should not increase this version, as doing so will cause + // the plugin to fail to compile for some customers of the plugin. + // version "3.10.2" + } + } + + compileOptions { + sourceCompatibility = JavaVersion.VERSION_17 + targetCompatibility = JavaVersion.VERSION_17 + } + + defaultConfig { + minSdk = 24 + } +} diff --git a/android/settings.gradle b/android/settings.gradle new file mode 100644 index 0000000..5397af8 --- /dev/null +++ b/android/settings.gradle @@ -0,0 +1 @@ +rootProject.name = 'image_ffi' diff --git a/android/src/main/AndroidManifest.xml b/android/src/main/AndroidManifest.xml new file mode 100644 index 0000000..f52894f --- /dev/null +++ b/android/src/main/AndroidManifest.xml @@ -0,0 +1,3 @@ + + diff --git a/example/.gitignore b/example/.gitignore new file mode 100644 index 0000000..3820a95 --- /dev/null +++ b/example/.gitignore @@ -0,0 +1,45 @@ +# Miscellaneous +*.class +*.log +*.pyc +*.swp +.DS_Store +.atom/ +.build/ +.buildlog/ +.history +.svn/ +.swiftpm/ +migrate_working_dir/ + +# 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-dependencies +.pub-cache/ +.pub/ +/build/ +/coverage/ + +# 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 diff --git a/example/README.md b/example/README.md new file mode 100644 index 0000000..6f1f783 --- /dev/null +++ b/example/README.md @@ -0,0 +1,16 @@ +# image_ffi_example + +Demonstrates how to use the image_ffi plugin. + +## 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://docs.flutter.dev/get-started/codelab) +- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook) + +For help getting started with Flutter development, view the +[online documentation](https://docs.flutter.dev/), which offers tutorials, +samples, guidance on mobile development, and a full API reference. diff --git a/example/analysis_options.yaml b/example/analysis_options.yaml new file mode 100644 index 0000000..0d29021 --- /dev/null +++ b/example/analysis_options.yaml @@ -0,0 +1,28 @@ +# 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.dev/lints. + # + # 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 diff --git a/example/android/.gitignore b/example/android/.gitignore new file mode 100644 index 0000000..be3943c --- /dev/null +++ b/example/android/.gitignore @@ -0,0 +1,14 @@ +gradle-wrapper.jar +/.gradle +/captures/ +/gradlew +/gradlew.bat +/local.properties +GeneratedPluginRegistrant.java +.cxx/ + +# Remember to never publicly share your keystore. +# See https://flutter.dev/to/reference-keystore +key.properties +**/*.keystore +**/*.jks diff --git a/example/android/app/build.gradle.kts b/example/android/app/build.gradle.kts new file mode 100644 index 0000000..3a970f6 --- /dev/null +++ b/example/android/app/build.gradle.kts @@ -0,0 +1,44 @@ +plugins { + id("com.android.application") + id("kotlin-android") + // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins. + id("dev.flutter.flutter-gradle-plugin") +} + +android { + namespace = "dr1009.com.image_ffi_example" + compileSdk = flutter.compileSdkVersion + ndkVersion = flutter.ndkVersion + + compileOptions { + sourceCompatibility = JavaVersion.VERSION_17 + targetCompatibility = JavaVersion.VERSION_17 + } + + kotlinOptions { + jvmTarget = JavaVersion.VERSION_17.toString() + } + + defaultConfig { + // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html). + applicationId = "dr1009.com.image_ffi_example" + // You can update the following values to match your application needs. + // For more information, see: https://flutter.dev/to/review-gradle-config. + minSdk = flutter.minSdkVersion + targetSdk = flutter.targetSdkVersion + versionCode = flutter.versionCode + versionName = flutter.versionName + } + + buildTypes { + release { + // TODO: Add your own signing config for the release build. + // Signing with the debug keys for now, so `flutter run --release` works. + signingConfig = signingConfigs.getByName("debug") + } + } +} + +flutter { + source = "../.." +} diff --git a/example/android/app/src/debug/AndroidManifest.xml b/example/android/app/src/debug/AndroidManifest.xml new file mode 100644 index 0000000..399f698 --- /dev/null +++ b/example/android/app/src/debug/AndroidManifest.xml @@ -0,0 +1,7 @@ + + + + diff --git a/example/android/app/src/main/AndroidManifest.xml b/example/android/app/src/main/AndroidManifest.xml new file mode 100644 index 0000000..c501d89 --- /dev/null +++ b/example/android/app/src/main/AndroidManifest.xml @@ -0,0 +1,45 @@ + + + + + + + + + + + + + + + + + + + + + diff --git a/example/android/app/src/main/kotlin/dr1009/com/image_ffi_example/MainActivity.kt b/example/android/app/src/main/kotlin/dr1009/com/image_ffi_example/MainActivity.kt new file mode 100644 index 0000000..c4e4407 --- /dev/null +++ b/example/android/app/src/main/kotlin/dr1009/com/image_ffi_example/MainActivity.kt @@ -0,0 +1,5 @@ +package dr1009.com.image_ffi_example + +import io.flutter.embedding.android.FlutterActivity + +class MainActivity : FlutterActivity() diff --git a/example/android/app/src/main/res/drawable-v21/launch_background.xml b/example/android/app/src/main/res/drawable-v21/launch_background.xml new file mode 100644 index 0000000..f74085f --- /dev/null +++ b/example/android/app/src/main/res/drawable-v21/launch_background.xml @@ -0,0 +1,12 @@ + + + + + + + + diff --git a/example/android/app/src/main/res/drawable/launch_background.xml b/example/android/app/src/main/res/drawable/launch_background.xml new file mode 100644 index 0000000..304732f --- /dev/null +++ b/example/android/app/src/main/res/drawable/launch_background.xml @@ -0,0 +1,12 @@ + + + + + + + + diff --git a/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png new file mode 100644 index 0000000..db77bb4 Binary files /dev/null and b/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png differ diff --git a/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png new file mode 100644 index 0000000..17987b7 Binary files /dev/null and b/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png differ diff --git a/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png new file mode 100644 index 0000000..09d4391 Binary files /dev/null and b/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ diff --git a/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png new file mode 100644 index 0000000..d5f1c8d Binary files /dev/null and b/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ diff --git a/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png new file mode 100644 index 0000000..4d6372e Binary files /dev/null and b/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ diff --git a/example/android/app/src/main/res/values-night/styles.xml b/example/android/app/src/main/res/values-night/styles.xml new file mode 100644 index 0000000..06952be --- /dev/null +++ b/example/android/app/src/main/res/values-night/styles.xml @@ -0,0 +1,18 @@ + + + + + + + diff --git a/example/android/app/src/main/res/values/styles.xml b/example/android/app/src/main/res/values/styles.xml new file mode 100644 index 0000000..cb1ef88 --- /dev/null +++ b/example/android/app/src/main/res/values/styles.xml @@ -0,0 +1,18 @@ + + + + + + + diff --git a/example/android/app/src/profile/AndroidManifest.xml b/example/android/app/src/profile/AndroidManifest.xml new file mode 100644 index 0000000..399f698 --- /dev/null +++ b/example/android/app/src/profile/AndroidManifest.xml @@ -0,0 +1,7 @@ + + + + diff --git a/example/android/build.gradle.kts b/example/android/build.gradle.kts new file mode 100644 index 0000000..dbee657 --- /dev/null +++ b/example/android/build.gradle.kts @@ -0,0 +1,24 @@ +allprojects { + repositories { + google() + mavenCentral() + } +} + +val newBuildDir: Directory = + rootProject.layout.buildDirectory + .dir("../../build") + .get() +rootProject.layout.buildDirectory.value(newBuildDir) + +subprojects { + val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name) + project.layout.buildDirectory.value(newSubprojectBuildDir) +} +subprojects { + project.evaluationDependsOn(":app") +} + +tasks.register("clean") { + delete(rootProject.layout.buildDirectory) +} diff --git a/example/android/gradle.properties b/example/android/gradle.properties new file mode 100644 index 0000000..fbee1d8 --- /dev/null +++ b/example/android/gradle.properties @@ -0,0 +1,2 @@ +org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError +android.useAndroidX=true diff --git a/example/android/gradle/wrapper/gradle-wrapper.properties b/example/android/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..e4ef43f --- /dev/null +++ b/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-8.14-all.zip diff --git a/example/android/settings.gradle.kts b/example/android/settings.gradle.kts new file mode 100644 index 0000000..ca7fe06 --- /dev/null +++ b/example/android/settings.gradle.kts @@ -0,0 +1,26 @@ +pluginManagement { + val flutterSdkPath = + run { + val properties = java.util.Properties() + file("local.properties").inputStream().use { properties.load(it) } + val flutterSdkPath = properties.getProperty("flutter.sdk") + require(flutterSdkPath != null) { "flutter.sdk not set in local.properties" } + flutterSdkPath + } + + includeBuild("$flutterSdkPath/packages/flutter_tools/gradle") + + repositories { + google() + mavenCentral() + gradlePluginPortal() + } +} + +plugins { + id("dev.flutter.flutter-plugin-loader") version "1.0.0" + id("com.android.application") version "8.11.1" apply false + id("org.jetbrains.kotlin.android") version "2.2.20" apply false +} + +include(":app") diff --git a/example/ios/.gitignore b/example/ios/.gitignore new file mode 100644 index 0000000..7a7f987 --- /dev/null +++ b/example/ios/.gitignore @@ -0,0 +1,34 @@ +**/dgph +*.mode1v3 +*.mode2v3 +*.moved-aside +*.pbxuser +*.perspectivev3 +**/*sync/ +.sconsign.dblite +.tags* +**/.vagrant/ +**/DerivedData/ +Icon? +**/Pods/ +**/.symlinks/ +profile +xcuserdata +**/.generated/ +Flutter/App.framework +Flutter/Flutter.framework +Flutter/Flutter.podspec +Flutter/Generated.xcconfig +Flutter/ephemeral/ +Flutter/app.flx +Flutter/app.zip +Flutter/flutter_assets/ +Flutter/flutter_export_environment.sh +ServiceDefinitions.json +Runner/GeneratedPluginRegistrant.* + +# Exceptions to above rules. +!default.mode1v3 +!default.mode2v3 +!default.pbxuser +!default.perspectivev3 diff --git a/example/ios/Flutter/AppFrameworkInfo.plist b/example/ios/Flutter/AppFrameworkInfo.plist new file mode 100644 index 0000000..1dc6cf7 --- /dev/null +++ b/example/ios/Flutter/AppFrameworkInfo.plist @@ -0,0 +1,26 @@ + + + + + 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Project object */; +} diff --git a/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata new file mode 100644 index 0000000..919434a --- /dev/null +++ b/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata @@ -0,0 +1,7 @@ + + + + + diff --git a/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist new file mode 100644 index 0000000..18d9810 --- /dev/null +++ b/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist @@ -0,0 +1,8 @@ + + + + + IDEDidComputeMac32BitWarning + + + diff --git a/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings new file mode 100644 index 0000000..f9b0d7c --- /dev/null +++ b/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings @@ -0,0 +1,8 @@ + + + + + PreviewsEnabled + + + diff --git a/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme new file mode 100644 index 0000000..e3773d4 --- /dev/null +++ b/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme @@ -0,0 +1,101 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/example/ios/Runner.xcworkspace/contents.xcworkspacedata b/example/ios/Runner.xcworkspace/contents.xcworkspacedata new file mode 100644 index 0000000..1d526a1 --- /dev/null +++ b/example/ios/Runner.xcworkspace/contents.xcworkspacedata @@ -0,0 +1,7 @@ + + + + + diff --git a/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist new file mode 100644 index 0000000..18d9810 --- /dev/null +++ b/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist @@ -0,0 +1,8 @@ + + + + + IDEDidComputeMac32BitWarning + + + diff --git a/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings new file mode 100644 index 0000000..f9b0d7c --- /dev/null +++ b/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings @@ -0,0 +1,8 @@ + + + + + PreviewsEnabled + + + diff --git a/example/ios/Runner/AppDelegate.swift b/example/ios/Runner/AppDelegate.swift new file mode 100644 index 0000000..6266644 --- /dev/null +++ b/example/ios/Runner/AppDelegate.swift @@ -0,0 +1,13 @@ +import Flutter +import UIKit + +@main +@objc class AppDelegate: FlutterAppDelegate { + override func application( + _ application: UIApplication, + didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? + ) -> Bool { + GeneratedPluginRegistrant.register(with: self) + return super.application(application, didFinishLaunchingWithOptions: launchOptions) + } +} diff --git a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json new file mode 100644 index 0000000..d36b1fa --- /dev/null +++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json @@ -0,0 +1,122 @@ +{ + "images" : [ + { + "size" : "20x20", + "idiom" : "iphone", + "filename" : "Icon-App-20x20@2x.png", + "scale" : "2x" + }, + { + "size" : "20x20", + "idiom" : "iphone", + "filename" : "Icon-App-20x20@3x.png", + "scale" : "3x" + }, + { + "size" : "29x29", + "idiom" : "iphone", + "filename" : "Icon-App-29x29@1x.png", + "scale" : "1x" + }, + { + "size" : "29x29", + "idiom" : "iphone", + "filename" : "Icon-App-29x29@2x.png", + "scale" : "2x" + }, + { + "size" : "29x29", + "idiom" : "iphone", + "filename" : "Icon-App-29x29@3x.png", + "scale" : "3x" + }, + { + "size" : "40x40", + "idiom" : "iphone", + "filename" : "Icon-App-40x40@2x.png", + "scale" : "2x" + }, + { + "size" : "40x40", + "idiom" : "iphone", + "filename" : "Icon-App-40x40@3x.png", + "scale" : "3x" + }, + { + "size" : "60x60", + "idiom" : "iphone", + "filename" : "Icon-App-60x60@2x.png", + "scale" : "2x" + }, + { + "size" : "60x60", + "idiom" : "iphone", + "filename" : "Icon-App-60x60@3x.png", + "scale" : "3x" + }, + { + "size" : "20x20", + "idiom" : "ipad", + "filename" : "Icon-App-20x20@1x.png", + "scale" : "1x" + }, + { + "size" : "20x20", + "idiom" : "ipad", + "filename" : "Icon-App-20x20@2x.png", + "scale" : "2x" + }, + { + "size" : "29x29", + "idiom" : "ipad", + "filename" : "Icon-App-29x29@1x.png", + "scale" : "1x" + }, + { + "size" : "29x29", + "idiom" : "ipad", + "filename" : "Icon-App-29x29@2x.png", + "scale" : "2x" + }, + { + "size" : "40x40", + "idiom" : "ipad", + "filename" : "Icon-App-40x40@1x.png", + "scale" : "1x" + }, + { + "size" : "40x40", + "idiom" : "ipad", + "filename" : "Icon-App-40x40@2x.png", + "scale" : "2x" + }, + { + "size" : "76x76", + "idiom" : "ipad", + "filename" : "Icon-App-76x76@1x.png", + "scale" : "1x" + }, + { + "size" : "76x76", + "idiom" : "ipad", + "filename" : "Icon-App-76x76@2x.png", + "scale" : "2x" + }, + { + "size" : "83.5x83.5", + "idiom" : "ipad", + "filename" : "Icon-App-83.5x83.5@2x.png", + "scale" : "2x" + }, + { + "size" : "1024x1024", + "idiom" : "ios-marketing", + "filename" : "Icon-App-1024x1024@1x.png", + "scale" : "1x" + } + ], + "info" : { + "version" : 1, + "author" : "xcode" + } +} diff --git a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png new file mode 100644 index 0000000..dc9ada4 Binary files /dev/null and b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png differ diff --git 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a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png new file mode 100644 index 0000000..8953cba Binary files /dev/null and b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png differ diff --git a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png new file mode 100644 index 0000000..0467bf1 Binary files /dev/null and b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png differ diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json new file mode 100644 index 0000000..0bedcf2 --- /dev/null +++ b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json @@ -0,0 +1,23 @@ +{ + "images" : [ + { + "idiom" : "universal", + "filename" : "LaunchImage.png", + "scale" : "1x" + }, + { + "idiom" : "universal", + "filename" : "LaunchImage@2x.png", + "scale" : "2x" + }, + { + "idiom" : "universal", + "filename" : "LaunchImage@3x.png", + "scale" : "3x" + } + ], + "info" : { + "version" : 1, + "author" : "xcode" + } +} diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png new file mode 100644 index 0000000..9da19ea Binary files /dev/null and b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png differ diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png new file mode 100644 index 0000000..9da19ea Binary files /dev/null and b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png differ diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png new file mode 100644 index 0000000..9da19ea Binary files /dev/null and b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png differ diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md new file mode 100644 index 0000000..89c2725 --- /dev/null +++ b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md @@ -0,0 +1,5 @@ +# Launch Screen Assets + +You can customize the launch screen with your own desired assets by replacing the image files in this directory. + +You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images. \ No newline at end of file diff --git a/example/ios/Runner/Base.lproj/LaunchScreen.storyboard b/example/ios/Runner/Base.lproj/LaunchScreen.storyboard new file mode 100644 index 0000000..f2e259c --- /dev/null +++ b/example/ios/Runner/Base.lproj/LaunchScreen.storyboard @@ -0,0 +1,37 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/example/ios/Runner/Base.lproj/Main.storyboard b/example/ios/Runner/Base.lproj/Main.storyboard new file mode 100644 index 0000000..f3c2851 --- /dev/null +++ b/example/ios/Runner/Base.lproj/Main.storyboard @@ -0,0 +1,26 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/example/ios/Runner/Info.plist b/example/ios/Runner/Info.plist new file mode 100644 index 0000000..e0242ef --- /dev/null +++ b/example/ios/Runner/Info.plist @@ -0,0 +1,49 @@ + + + + + CFBundleDevelopmentRegion + $(DEVELOPMENT_LANGUAGE) + CFBundleDisplayName + Image Ffi + CFBundleExecutable + $(EXECUTABLE_NAME) + CFBundleIdentifier + $(PRODUCT_BUNDLE_IDENTIFIER) + CFBundleInfoDictionaryVersion + 6.0 + CFBundleName + image_ffi_example + CFBundlePackageType + APPL + CFBundleShortVersionString + $(FLUTTER_BUILD_NAME) + CFBundleSignature + ???? + CFBundleVersion + $(FLUTTER_BUILD_NUMBER) + LSRequiresIPhoneOS + + UILaunchStoryboardName + LaunchScreen + UIMainStoryboardFile + Main + UISupportedInterfaceOrientations + + UIInterfaceOrientationPortrait + UIInterfaceOrientationLandscapeLeft + UIInterfaceOrientationLandscapeRight + + UISupportedInterfaceOrientations~ipad + + UIInterfaceOrientationPortrait + UIInterfaceOrientationPortraitUpsideDown + UIInterfaceOrientationLandscapeLeft + UIInterfaceOrientationLandscapeRight + + CADisableMinimumFrameDurationOnPhone + + UIApplicationSupportsIndirectInputEvents + + + diff --git a/example/ios/Runner/Runner-Bridging-Header.h b/example/ios/Runner/Runner-Bridging-Header.h new file mode 100644 index 0000000..308a2a5 --- /dev/null +++ b/example/ios/Runner/Runner-Bridging-Header.h @@ -0,0 +1 @@ +#import "GeneratedPluginRegistrant.h" diff --git a/example/ios/RunnerTests/RunnerTests.swift b/example/ios/RunnerTests/RunnerTests.swift new file mode 100644 index 0000000..86a7c3b --- /dev/null +++ b/example/ios/RunnerTests/RunnerTests.swift @@ -0,0 +1,12 @@ +import Flutter +import UIKit +import XCTest + +class RunnerTests: XCTestCase { + + func testExample() { + // If you add code to the Runner application, consider adding tests here. + // See https://developer.apple.com/documentation/xctest for more information about using XCTest. + } + +} diff --git a/example/lib/main.dart b/example/lib/main.dart new file mode 100644 index 0000000..babb5c0 --- /dev/null +++ b/example/lib/main.dart @@ -0,0 +1,74 @@ +import 'package:flutter/material.dart'; +import 'dart:async'; + +import 'package:image_ffi/image_ffi.dart' as image_ffi; + +void main() { + runApp(const MyApp()); +} + +class MyApp extends StatefulWidget { + const MyApp({super.key}); + + @override + State createState() => _MyAppState(); +} + +class _MyAppState extends State { + late int sumResult; + late Future sumAsyncResult; + + @override + void initState() { + super.initState(); + sumResult = image_ffi.sum(1, 2); + sumAsyncResult = image_ffi.sumAsync(3, 4); + } + + @override + Widget build(BuildContext context) { + const textStyle = TextStyle(fontSize: 25); + const spacerSmall = SizedBox(height: 10); + return MaterialApp( + home: Scaffold( + appBar: AppBar( + title: const Text('Native Packages'), + ), + body: SingleChildScrollView( + child: Container( + padding: const .all(10), + child: Column( + children: [ + const Text( + 'This calls a native function through FFI that is shipped as source in the package. ' + 'The native code is built as part of the Flutter Runner build.', + style: textStyle, + textAlign: .center, + ), + spacerSmall, + Text( + 'sum(1, 2) = $sumResult', + style: textStyle, + textAlign: .center, + ), + spacerSmall, + FutureBuilder( + future: sumAsyncResult, + builder: (BuildContext context, AsyncSnapshot value) { + final displayValue = + (value.hasData) ? value.data : 'loading'; + return Text( + 'await sumAsync(3, 4) = $displayValue', + style: textStyle, + textAlign: .center, + ); + }, + ), + ], + ), + ), + ), + ), + ); + } +} diff --git a/example/pubspec.lock b/example/pubspec.lock new file mode 100644 index 0000000..7a31bd8 --- /dev/null +++ b/example/pubspec.lock @@ -0,0 +1,228 @@ +# Generated by pub +# See https://dart.dev/tools/pub/glossary#lockfile +packages: + async: + dependency: transitive + description: + name: async + sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb" + url: "https://pub.dev" + source: hosted + version: "2.13.0" + boolean_selector: + dependency: transitive + description: + name: boolean_selector + sha256: "8aab1771e1243a5063b8b0ff68042d67334e3feab9e95b9490f9a6ebf73b42ea" + url: "https://pub.dev" + source: hosted + version: "2.1.2" + characters: + dependency: transitive + description: + name: characters + sha256: f71061c654a3380576a52b451dd5532377954cf9dbd272a78fc8479606670803 + url: "https://pub.dev" + source: hosted + version: "1.4.0" + clock: + dependency: transitive + description: + name: clock + sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b + url: "https://pub.dev" + source: hosted + version: "1.1.2" + collection: + dependency: transitive + description: + name: collection + sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76" + url: "https://pub.dev" + source: hosted + version: "1.19.1" + cupertino_icons: + dependency: "direct main" + description: + name: cupertino_icons + sha256: ba631d1c7f7bef6b729a622b7b752645a2d076dba9976925b8f25725a30e1ee6 + url: "https://pub.dev" + source: hosted + version: "1.0.8" + fake_async: + dependency: transitive + description: + name: fake_async + sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44" + url: "https://pub.dev" + source: hosted + version: "1.3.3" + flutter: + dependency: "direct main" + description: flutter + source: sdk + version: "0.0.0" + flutter_lints: + dependency: "direct dev" + description: + name: flutter_lints + sha256: "3105dc8492f6183fb076ccf1f351ac3d60564bff92e20bfc4af9cc1651f4e7e1" + url: "https://pub.dev" + source: hosted + version: "6.0.0" + flutter_test: + dependency: "direct dev" + description: flutter + source: sdk + version: "0.0.0" + image_ffi: + dependency: "direct main" + description: + path: ".." + relative: true + source: path + version: "0.0.1" + leak_tracker: + dependency: transitive + description: + name: leak_tracker + sha256: "33e2e26bdd85a0112ec15400c8cbffea70d0f9c3407491f672a2fad47915e2de" + url: "https://pub.dev" + source: hosted + version: "11.0.2" + leak_tracker_flutter_testing: + dependency: transitive + description: + name: leak_tracker_flutter_testing + sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1" + url: "https://pub.dev" + source: hosted + version: "3.0.10" + leak_tracker_testing: + dependency: transitive + description: + name: leak_tracker_testing + sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1" + url: "https://pub.dev" + source: hosted + version: "3.0.2" + lints: + dependency: transitive + description: + name: lints + sha256: a5e2b223cb7c9c8efdc663ef484fdd95bb243bff242ef5b13e26883547fce9a0 + url: "https://pub.dev" + source: hosted + version: "6.0.0" + matcher: + dependency: transitive + description: + name: matcher + sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2 + url: "https://pub.dev" + source: hosted + version: "0.12.17" + material_color_utilities: + dependency: transitive + description: + name: material_color_utilities + sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec + url: "https://pub.dev" + source: hosted + version: "0.11.1" + meta: + dependency: transitive + description: + name: meta + sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394" + url: "https://pub.dev" + source: hosted + version: "1.17.0" + path: + dependency: transitive + description: + name: path + sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5" + url: "https://pub.dev" + source: hosted + version: "1.9.1" + plugin_platform_interface: + dependency: transitive + description: + name: plugin_platform_interface + sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02" + url: "https://pub.dev" + source: hosted + version: "2.1.8" + sky_engine: + dependency: transitive + description: flutter + source: sdk + version: "0.0.0" + source_span: + dependency: transitive + description: + name: source_span + sha256: "254ee5351d6cb365c859e20ee823c3bb479bf4a293c22d17a9f1bf144ce86f7c" + url: "https://pub.dev" + source: hosted + version: "1.10.1" + stack_trace: + dependency: transitive + description: + name: stack_trace + sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1" + url: "https://pub.dev" + source: hosted + version: "1.12.1" + stream_channel: + dependency: transitive + description: + name: stream_channel + sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d" + url: "https://pub.dev" + source: hosted + version: "2.1.4" + string_scanner: + dependency: transitive + description: + name: string_scanner + sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43" + url: "https://pub.dev" + source: hosted + version: "1.4.1" + term_glyph: + dependency: transitive + description: + name: term_glyph + sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e" + url: "https://pub.dev" + source: hosted + version: "1.2.2" + test_api: + dependency: transitive + description: + name: test_api + sha256: ab2726c1a94d3176a45960b6234466ec367179b87dd74f1611adb1f3b5fb9d55 + url: "https://pub.dev" + source: hosted + version: "0.7.7" + vector_math: + dependency: transitive + description: + name: vector_math + sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b + url: "https://pub.dev" + source: hosted + version: "2.2.0" + vm_service: + dependency: transitive + description: + name: vm_service + sha256: "45caa6c5917fa127b5dbcfbd1fa60b14e583afdc08bfc96dda38886ca252eb60" + url: "https://pub.dev" + source: hosted + version: "15.0.2" +sdks: + dart: ">=3.10.3 <4.0.0" + flutter: ">=3.18.0-18.0.pre.54" diff --git a/example/pubspec.yaml b/example/pubspec.yaml new file mode 100644 index 0000000..bc0ff43 --- /dev/null +++ b/example/pubspec.yaml @@ -0,0 +1,97 @@ +name: image_ffi_example +description: "Demonstrates how to use the image_ffi plugin." +# The following line prevents the package from being accidentally published to +# pub.dev using `flutter pub publish`. This is preferred for private packages. +publish_to: 'none' # Remove this line if you wish to publish to pub.dev + +# The following defines the version and build number for your application. +# A version number is three numbers separated by dots, like 1.2.43 +# followed by an optional build number separated by a +. +# Both the version and the builder number may be overridden in flutter +# build by specifying --build-name and --build-number, respectively. +# In Android, build-name is used as versionName while build-number used as versionCode. +# Read more about Android versioning at https://developer.android.com/studio/publish/versioning +# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion. +# Read more about iOS versioning at +# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html +# In Windows, build-name is used as the major, minor, and patch parts +# of the product and file versions while build-number is used as the build suffix. +version: 1.0.0+1 + +environment: + sdk: ^3.10.3 + +# Dependencies specify other packages that your package needs in order to work. +# To automatically upgrade your package dependencies to the latest versions +# consider running `flutter pub upgrade --major-versions`. Alternatively, +# dependencies can be manually updated by changing the version numbers below to +# the latest version available on pub.dev. To see which dependencies have newer +# versions available, run `flutter pub outdated`. +dependencies: + flutter: + sdk: flutter + + image_ffi: + # When depending on this package from a real application you should use: + # image_ffi: ^x.y.z + # See https://dart.dev/tools/pub/dependencies#version-constraints + # The example app is bundled with the plugin so we use a path dependency on + # the parent directory to use the current plugin's version. + path: ../ + + # The following adds the Cupertino Icons font to your application. + # Use with the CupertinoIcons class for iOS style icons. + cupertino_icons: ^1.0.8 + +dev_dependencies: + flutter_test: + sdk: flutter + + # The "flutter_lints" package below contains a set of recommended lints to + # encourage good coding practices. The lint set provided by the package is + # activated in the `analysis_options.yaml` file located at the root of your + # package. See that file for information about deactivating specific lint + # rules and activating additional ones. + flutter_lints: ^6.0.0 + +# For information on the generic Dart part of this file, see the +# following page: https://dart.dev/tools/pub/pubspec + +# The following section is specific to Flutter packages. +flutter: + + # The following line ensures that the Material Icons font is + # included with your application, so that you can use the icons in + # the material Icons class. + uses-material-design: true + + # To add assets to your application, add an assets section, like this: + # assets: + # - images/a_dot_burr.jpeg + # - images/a_dot_ham.jpeg + + # An image asset can refer to one or more resolution-specific "variants", see + # https://flutter.dev/to/resolution-aware-images + + # For details regarding adding assets from package dependencies, see + # https://flutter.dev/to/asset-from-package + + # To add custom fonts to your application, add a fonts section here, + # in this "flutter" section. Each entry in this list should have a + # "family" key with the font family name, and a "fonts" key with a + # list giving the asset and other descriptors for the font. For + # example: + # fonts: + # - family: Schyler + # fonts: + # - asset: fonts/Schyler-Regular.ttf + # - asset: fonts/Schyler-Italic.ttf + # style: italic + # - family: Trajan Pro + # fonts: + # - asset: fonts/TrajanPro.ttf + # - asset: fonts/TrajanPro_Bold.ttf + # weight: 700 + # + # For details regarding fonts from package dependencies, + # see https://flutter.dev/to/font-from-package diff --git a/ffigen.yaml b/ffigen.yaml new file mode 100644 index 0000000..e2992de --- /dev/null +++ b/ffigen.yaml @@ -0,0 +1,19 @@ +# Run with `dart run ffigen --config ffigen.yaml`. +name: ImageFfiBindings +description: | + Bindings for `src/image_ffi.h`. + + Regenerate bindings with `dart run ffigen --config ffigen.yaml`. +output: 'lib/image_ffi_bindings_generated.dart' +headers: + entry-points: + - 'src/image_ffi.h' + include-directives: + - 'src/image_ffi.h' +preamble: | + // ignore_for_file: always_specify_types + // ignore_for_file: camel_case_types + // ignore_for_file: non_constant_identifier_names +comments: + style: any + length: full diff --git a/ios/Classes/image_ffi.c b/ios/Classes/image_ffi.c new file mode 100644 index 0000000..8f5b39b --- /dev/null +++ b/ios/Classes/image_ffi.c @@ -0,0 +1,3 @@ +// Relative import to be able to reuse the C sources. +// See the comment in ../image_ffi.podspec for more information. +#include "../../src/image_ffi.c" diff --git a/ios/image_ffi.podspec b/ios/image_ffi.podspec new file mode 100644 index 0000000..8b68a00 --- /dev/null +++ b/ios/image_ffi.podspec @@ -0,0 +1,28 @@ +# +# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html. +# Run `pod lib lint image_ffi.podspec` to validate before publishing. +# +Pod::Spec.new do |s| + s.name = 'image_ffi' + s.version = '0.0.1' + s.summary = 'A new Flutter FFI plugin project.' + s.description = <<-DESC +A new Flutter FFI plugin project. + DESC + s.homepage = 'http://example.com' + s.license = { :file => '../LICENSE' } + s.author = { 'Your Company' => 'email@example.com' } + + # This will ensure the source files in Classes/ are included in the native + # builds of apps using this FFI plugin. Podspec does not support relative + # paths, so Classes contains a forwarder C file that relatively imports + # `../src/*` so that the C sources can be shared among all target platforms. + s.source = { :path => '.' } + s.source_files = 'Classes/**/*' + s.dependency 'Flutter' + s.platform = :ios, '13.0' + + # Flutter.framework does not contain a i386 slice. + s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' } + s.swift_version = '5.0' +end diff --git a/lib/image_ffi.dart b/lib/image_ffi.dart new file mode 100644 index 0000000..0d1fbd6 --- /dev/null +++ b/lib/image_ffi.dart @@ -0,0 +1,131 @@ + +import 'dart:async'; +import 'dart:ffi'; +import 'dart:io'; +import 'dart:isolate'; + +import 'image_ffi_bindings_generated.dart'; + +/// A very short-lived native function. +/// +/// For very short-lived functions, it is fine to call them on the main isolate. +/// They will block the Dart execution while running the native function, so +/// only do this for native functions which are guaranteed to be short-lived. +int sum(int a, int b) => _bindings.sum(a, b); + +/// A longer lived native function, which occupies the thread calling it. +/// +/// Do not call these kind of native functions in the main isolate. They will +/// block Dart execution. This will cause dropped frames in Flutter applications. +/// Instead, call these native functions on a separate isolate. +/// +/// Modify this to suit your own use case. Example use cases: +/// +/// 1. Reuse a single isolate for various different kinds of requests. +/// 2. Use multiple helper isolates for parallel execution. +Future sumAsync(int a, int b) async { + final SendPort helperIsolateSendPort = await _helperIsolateSendPort; + final int requestId = _nextSumRequestId++; + final _SumRequest request = _SumRequest(requestId, a, b); + final Completer completer = Completer(); + _sumRequests[requestId] = completer; + helperIsolateSendPort.send(request); + return completer.future; +} + +const String _libName = 'image_ffi'; + +/// The dynamic library in which the symbols for [ImageFfiBindings] can be found. +final DynamicLibrary _dylib = () { + if (Platform.isMacOS || Platform.isIOS) { + return DynamicLibrary.open('$_libName.framework/$_libName'); + } + if (Platform.isAndroid || Platform.isLinux) { + return DynamicLibrary.open('lib$_libName.so'); + } + if (Platform.isWindows) { + return DynamicLibrary.open('$_libName.dll'); + } + throw UnsupportedError('Unknown platform: ${Platform.operatingSystem}'); +}(); + +/// The bindings to the native functions in [_dylib]. +final ImageFfiBindings _bindings = ImageFfiBindings(_dylib); + + +/// A request to compute `sum`. +/// +/// Typically sent from one isolate to another. +class _SumRequest { + final int id; + final int a; + final int b; + + const _SumRequest(this.id, this.a, this.b); +} + +/// A response with the result of `sum`. +/// +/// Typically sent from one isolate to another. +class _SumResponse { + final int id; + final int result; + + const _SumResponse(this.id, this.result); +} + +/// Counter to identify [_SumRequest]s and [_SumResponse]s. +int _nextSumRequestId = 0; + +/// Mapping from [_SumRequest] `id`s to the completers corresponding to the correct future of the pending request. +final Map> _sumRequests = >{}; + +/// The SendPort belonging to the helper isolate. +Future _helperIsolateSendPort = () async { + // The helper isolate is going to send us back a SendPort, which we want to + // wait for. + final Completer completer = Completer(); + + // Receive port on the main isolate to receive messages from the helper. + // We receive two types of messages: + // 1. A port to send messages on. + // 2. Responses to requests we sent. + final ReceivePort receivePort = ReceivePort() + ..listen((dynamic data) { + if (data is SendPort) { + // The helper isolate sent us the port on which we can sent it requests. + completer.complete(data); + return; + } + if (data is _SumResponse) { + // The helper isolate sent us a response to a request we sent. + final Completer completer = _sumRequests[data.id]!; + _sumRequests.remove(data.id); + completer.complete(data.result); + return; + } + throw UnsupportedError('Unsupported message type: ${data.runtimeType}'); + }); + + // Start the helper isolate. + await Isolate.spawn((SendPort sendPort) async { + final ReceivePort helperReceivePort = ReceivePort() + ..listen((dynamic data) { + // On the helper isolate listen to requests and respond to them. + if (data is _SumRequest) { + final int result = _bindings.sum_long_running(data.a, data.b); + final _SumResponse response = _SumResponse(data.id, result); + sendPort.send(response); + return; + } + throw UnsupportedError('Unsupported message type: ${data.runtimeType}'); + }); + + // Send the port to the main isolate on which we can receive requests. + sendPort.send(helperReceivePort.sendPort); + }, receivePort.sendPort); + + // Wait until the helper isolate has sent us back the SendPort on which we + // can start sending requests. + return completer.future; +}(); diff --git a/lib/image_ffi_bindings_generated.dart b/lib/image_ffi_bindings_generated.dart new file mode 100644 index 0000000..422bfa5 --- /dev/null +++ b/lib/image_ffi_bindings_generated.dart @@ -0,0 +1,69 @@ +// ignore_for_file: always_specify_types +// ignore_for_file: camel_case_types +// ignore_for_file: non_constant_identifier_names + +// AUTO GENERATED FILE, DO NOT EDIT. +// +// Generated by `package:ffigen`. +// ignore_for_file: type=lint +import 'dart:ffi' as ffi; + +/// Bindings for `src/image_ffi.h`. +/// +/// Regenerate bindings with `dart run ffigen --config ffigen.yaml`. +/// +class ImageFfiBindings { + /// Holds the symbol lookup function. + final ffi.Pointer Function(String symbolName) + _lookup; + + /// The symbols are looked up in [dynamicLibrary]. + ImageFfiBindings(ffi.DynamicLibrary dynamicLibrary) + : _lookup = dynamicLibrary.lookup; + + /// The symbols are looked up with [lookup]. + ImageFfiBindings.fromLookup( + ffi.Pointer Function(String symbolName) + lookup) + : _lookup = lookup; + + /// A very short-lived native function. + /// + /// For very short-lived functions, it is fine to call them on the main isolate. + /// They will block the Dart execution while running the native function, so + /// only do this for native functions which are guaranteed to be short-lived. + int sum( + int a, + int b, + ) { + return _sum( + a, + b, + ); + } + + late final _sumPtr = + _lookup>('sum'); + late final _sum = _sumPtr.asFunction(); + + /// A longer lived native function, which occupies the thread calling it. + /// + /// Do not call these kind of native functions in the main isolate. They will + /// block Dart execution. This will cause dropped frames in Flutter applications. + /// Instead, call these native functions on a separate isolate. + int sum_long_running( + int a, + int b, + ) { + return _sum_long_running( + a, + b, + ); + } + + late final _sum_long_runningPtr = + _lookup>( + 'sum_long_running'); + late final _sum_long_running = + _sum_long_runningPtr.asFunction(); +} diff --git a/pubspec.yaml b/pubspec.yaml new file mode 100644 index 0000000..5ea5b36 --- /dev/null +++ b/pubspec.yaml @@ -0,0 +1,75 @@ +name: image_ffi +description: "A new Flutter FFI plugin project." +version: 0.0.1 +homepage: + +environment: + sdk: ^3.10.3 + flutter: '>=3.3.0' + +dependencies: + flutter: + sdk: flutter + plugin_platform_interface: ^2.0.2 + +dev_dependencies: + ffi: ^2.1.3 + ffigen: ^13.0.0 + flutter_test: + sdk: flutter + flutter_lints: ^6.0.0 + +# For information on the generic Dart part of this file, see the +# following page: https://dart.dev/tools/pub/pubspec + +# The following section is specific to Flutter packages. +flutter: + # This section identifies this Flutter project as a plugin project. + # The 'pluginClass' specifies the class (in Java, Kotlin, Swift, Objective-C, etc.) + # which should be registered in the plugin registry. This is required for + # using method channels. + # The Android 'package' specifies package in which the registered class is. + # This is required for using method channels on Android. + # The 'ffiPlugin' specifies that native code should be built and bundled. + # This is required for using `dart:ffi`. + # All these are used by the tooling to maintain consistency when + # adding or updating assets for this project. + # + # Please refer to README.md for a detailed explanation. + plugin: + platforms: + android: + ffiPlugin: true + ios: + ffiPlugin: true + + # To add assets to your plugin package, add an assets section, like this: + # assets: + # - images/a_dot_burr.jpeg + # - images/a_dot_ham.jpeg + # + # For details regarding assets in packages, see + # https://flutter.dev/to/asset-from-package + # + # An image asset can refer to one or more resolution-specific "variants", see + # https://flutter.dev/to/resolution-aware-images + + # To add custom fonts to your plugin package, add a fonts section here, + # in this "flutter" section. Each entry in this list should have a + # "family" key with the font family name, and a "fonts" key with a + # list giving the asset and other descriptors for the font. For + # example: + # fonts: + # - family: Schyler + # fonts: + # - asset: fonts/Schyler-Regular.ttf + # - asset: fonts/Schyler-Italic.ttf + # style: italic + # - family: Trajan Pro + # fonts: + # - asset: fonts/TrajanPro.ttf + # - asset: fonts/TrajanPro_Bold.ttf + # weight: 700 + # + # For details regarding fonts in packages, see + # https://flutter.dev/to/font-from-package diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt new file mode 100644 index 0000000..8a59108 --- /dev/null +++ b/src/CMakeLists.txt @@ -0,0 +1,22 @@ +# The Flutter tooling requires that developers have CMake 3.10 or later +# installed. You should not increase this version, as doing so will cause +# the plugin to fail to compile for some customers of the plugin. +cmake_minimum_required(VERSION 3.10) + +project(image_ffi_library VERSION 0.0.1 LANGUAGES C) + +add_library(image_ffi SHARED + "image_ffi.c" +) + +set_target_properties(image_ffi PROPERTIES + PUBLIC_HEADER image_ffi.h + OUTPUT_NAME "image_ffi" +) + +target_compile_definitions(image_ffi PUBLIC DART_SHARED_LIB) + +if (ANDROID) + # Support Android 15 16k page size + target_link_options(image_ffi PRIVATE "-Wl,-z,max-page-size=16384") +endif() diff --git a/src/image_ffi.c b/src/image_ffi.c new file mode 100644 index 0000000..f34ae95 --- /dev/null +++ b/src/image_ffi.c @@ -0,0 +1,23 @@ +#include "image_ffi.h" + +// A very short-lived native function. +// +// For very short-lived functions, it is fine to call them on the main isolate. +// They will block the Dart execution while running the native function, so +// only do this for native functions which are guaranteed to be short-lived. +FFI_PLUGIN_EXPORT int sum(int a, int b) { return a + b; } + +// A longer-lived native function, which occupies the thread calling it. +// +// Do not call these kind of native functions in the main isolate. They will +// block Dart execution. This will cause dropped frames in Flutter applications. +// Instead, call these native functions on a separate isolate. +FFI_PLUGIN_EXPORT int sum_long_running(int a, int b) { + // Simulate work. +#if _WIN32 + Sleep(5000); +#else + usleep(5000 * 1000); +#endif + return a + b; +} diff --git a/src/image_ffi.h b/src/image_ffi.h new file mode 100644 index 0000000..7944459 --- /dev/null +++ b/src/image_ffi.h @@ -0,0 +1,30 @@ +#include +#include +#include + +#if _WIN32 +#include +#else +#include +#include +#endif + +#if _WIN32 +#define FFI_PLUGIN_EXPORT __declspec(dllexport) +#else +#define FFI_PLUGIN_EXPORT +#endif + +// A very short-lived native function. +// +// For very short-lived functions, it is fine to call them on the main isolate. +// They will block the Dart execution while running the native function, so +// only do this for native functions which are guaranteed to be short-lived. +FFI_PLUGIN_EXPORT int sum(int a, int b); + +// A longer lived native function, which occupies the thread calling it. +// +// Do not call these kind of native functions in the main isolate. They will +// block Dart execution. This will cause dropped frames in Flutter applications. +// Instead, call these native functions on a separate isolate. +FFI_PLUGIN_EXPORT int sum_long_running(int a, int b);