fix: no gif encoder

Author: LaoLittle

src/main/kotlin/General.kt

@@ -11,6 +11,7 @@ import net.mamoe.mirai.message.data.MessageSource.Key.quote
 import net.mamoe.mirai.message.nextMessageOrNull
 import net.mamoe.mirai.utils.ExternalResource.Companion.toExternalResource
 import org.jetbrains.skia.*
+import org.laolittle.plugin.gif.GifLibrary
 import java.nio.file.Path
 import kotlin.io.path.readBytes
 import org.jetbrains.skia.Image as SkImage
@@ -102,4 +103,13 @@ fun Canvas.drawImageRectLinear(image: SkImage, dst: Rect, paint: Paint?) =
 
 fun Canvas.drawImageRectLinear(image: SkImage, dst: Rect) = drawImageRectLinear(image, dst, null)
 
-suspend fun Image.getBytes(): ByteArray = httpClient.get(queryUrl())
+suspend fun Image.getBytes(): ByteArray = httpClient.get(queryUrl())
+
+val gifSupported by lazy {
+    try {
+        GifLibrary.load()
+        true
+    } catch (e: UnsatisfiedLinkError) {
+        false
+    }
+}

src/main/kotlin/meme/BlackWhite.kt

@@ -6,6 +6,7 @@ import org.jetbrains.skia.*
 import org.laolittle.plugin.Fonts
 import org.laolittle.plugin.bytes
 import org.laolittle.plugin.draw.DrawMeme
+import org.laolittle.plugin.draw.gifSupported
 import org.laolittle.plugin.gif.GifEncoder
 import org.laolittle.plugin.gif.GifSetting
 import org.laolittle.plugin.usedBy
@@ -117,7 +118,7 @@ suspend fun blackWhite(text: String, image: ByteArray, _filter: String): ByteArr
     }
 
     codec.use {
-        return if (codec.encodedImageFormat == EncodedImageFormat.GIF) {
+        return if (gifSupported && codec.encodedImageFormat == EncodedImageFormat.GIF) {
             val bitmaps = Array(codec.frameCount) {
                 //DrawMeme.async {   // multi-thread will make jvm crash
                 Bitmap().apply {