KNI Stub (#746)

* Revert "Revert "Kotlin Native Jni Stub""

This reverts commit 46c89534fd.

* Work KNI build script

* Load Kni library as well

* Fix lib name

* Setup Kotlin Compiler

* Setup Kotlin Compiler

* Setup Kotlin Compiler

* Fix kotlin native compiler not available

* Fix

app/build.gradle

@@ -179,6 +179,7 @@ dependencies {
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.4'
     implementation 'org.jetbrains.kotlinx:kotlinx-serialization-cbor:1.5.0-RC'
     implementation 'org.jsoup:jsoup:1.15.3'
+    implementation project(":native")
 }
 
 configurations.all {
@@ -188,3 +189,11 @@ configurations.all {
     exclude group: 'org.jetbrains.kotlin', module: 'kotlin-stdlib-jdk7'
     exclude group: 'org.jetbrains.kotlin', module: 'kotlin-stdlib-jdk8'
 }
+
+repositories {
+    google()
+    mavenCentral()
+    maven { url "https://jcenter.bintray.com" }
+    maven { url "https://jitpack.io" }
+    maven { url "https://androidx.dev/storage/compose-compiler/repository/" }
+}

app/src/main/java/com/hippo/Native.kt

@@ -23,6 +23,7 @@ import java.nio.ByteBuffer
 object Native {
     fun initialize() {
         System.loadLibrary("ehviewer")
+        System.loadLibrary("ehviewer_kotlin_native")
     }
 
     @JvmStatic

build.gradle

@@ -5,6 +5,14 @@ plugins {
     id 'com.google.devtools.ksp' version '1.8.0-1.0.9' apply false
 }
 
+repositories {
+    google()
+    mavenCentral()
+    maven { url "https://jcenter.bintray.com" }
+    maven { url "https://jitpack.io" }
+    maven { url "https://androidx.dev/storage/compose-compiler/repository/" }
+}
+
 task clean(type: Delete) {
     delete rootProject.buildDir
 }

native/.gitignore

@@ -0,0 +1 @@
+/build

native/build.gradle.kts

@@ -0,0 +1,80 @@
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget
+import org.jetbrains.kotlin.gradle.plugin.mpp.NativeBuildType
+import org.jetbrains.kotlin.konan.target.KonanTarget.*
+
+plugins {
+    kotlin("multiplatform")
+    id("com.android.library")
+}
+
+val jniLibDir = File(project.buildDir, arrayOf("generated", "jniLibs").joinToString(File.separator))
+
+val sharedLib_name_prefix = "ehviewer_kotlin_native"
+
+kotlin {
+    android()
+
+    val nativeConfigure: KotlinNativeTarget.() -> Unit = {
+        binaries {
+            sharedLib(sharedLib_name_prefix) {
+                linkTask.doLast {
+                    copy {
+                        from(outputFile)
+
+                        val typeName = if (buildType == NativeBuildType.DEBUG) "Debug" else "Release"
+                        val abiDirName = when(target.konanTarget) {
+                            ANDROID_ARM32 -> "armeabi-v7a"
+                            ANDROID_ARM64 -> "arm64-v8a"
+                            ANDROID_X86 -> "x86"
+                            ANDROID_X64 -> "x86_64"
+                            else -> "unknown"
+                        }
+
+                        into(file("$jniLibDir/$typeName/$abiDirName"))
+                    }
+                }
+
+                afterEvaluate {
+                    val preBuild by tasks.getting
+                    preBuild.dependsOn(linkTask)
+                }
+            }
+        }
+    }
+
+    androidNativeArm32(configure = nativeConfigure)
+    androidNativeArm64(configure = nativeConfigure)
+    androidNativeX86(configure = nativeConfigure)
+    androidNativeX64(configure = nativeConfigure)
+
+    sourceSets {
+        val androidNativeArm32Main by getting
+        val androidNativeArm64Main by getting
+        val androidNativeX86Main by getting
+        val androidNativeX64Main by getting
+
+        val nativeMain by creating {
+            androidNativeArm32Main.dependsOn(this)
+            androidNativeArm64Main.dependsOn(this)
+            androidNativeX86Main.dependsOn(this)
+            androidNativeX64Main.dependsOn(this)
+        }
+    }
+
+}
+
+android {
+    compileSdk = 33
+    buildToolsVersion = "33.0.1"
+
+    sourceSets {
+        getByName("debug").jniLibs.srcDirs("$jniLibDir/Debug")
+        getByName("release").jniLibs.srcDirs("$jniLibDir/Release")
+    }
+    namespace = "moe.tarsin.ehviewer"
+}
+
+repositories {
+    mavenCentral()
+    google()
+}

native/src/nativeMain/kotlin/moe/tarsin/ehviewer/RewriteGif.kt

@@ -0,0 +1,13 @@
+package moe.tarsin.ehviewer
+
+import kotlinx.cinterop.CPointer
+import kotlinx.cinterop.invoke
+import kotlinx.cinterop.pointed
+import platform.android.JNIEnvVar
+import platform.android.jclass
+import platform.android.jobject
+
+@CName("Java_com_hippo_Native_rewriteGif")
+fun rewriteGif(env: CPointer<JNIEnvVar>, thiz: jclass, buffer: jobject) {
+    val ptr = env.pointed.pointed!!.GetDirectBufferAddress!!.invoke(env, buffer)
+}

settings.gradle

@@ -5,16 +5,8 @@ pluginManagement {
         mavenCentral()
     }
 }
-dependencyResolutionManagement {
-    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
-    repositories {
-        google()
-        mavenCentral()
-        maven { url "https://jcenter.bintray.com" }
-        maven { url "https://jitpack.io" }
-        maven { url "https://androidx.dev/storage/compose-compiler/repository/" }
-    }
-}
+
 enableFeaturePreview("TYPESAFE_PROJECT_ACCESSORS")
 rootProject.name = "EhViewer"
 include ':app'
+include ':native'