Implement basic bitmap loader

ultrasonic/src/main/kotlin/org/moire/ultrasonic/imageloader/ArtworkBitmapLoader.kt

@@ -0,0 +1,55 @@
+/*
+ * ArtworkBitmapLoader.kt
+ * Copyright (C) 2009-2022 Ultrasonic developers
+ *
+ * Distributed under terms of the GNU GPLv3 license.
+ */
+
+package org.moire.ultrasonic.imageloader
+
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.net.Uri
+import androidx.media3.session.BitmapLoader
+import com.google.common.base.Suppliers
+import com.google.common.util.concurrent.ListenableFuture
+import com.google.common.util.concurrent.ListeningExecutorService
+import com.google.common.util.concurrent.MoreExecutors
+import java.io.IOException
+import java.util.concurrent.Executors
+
+class ArtworkBitmapLoader : BitmapLoader {
+    private val DEFAULT_EXECUTOR_SERVICE = Suppliers.memoize {
+        MoreExecutors.listeningDecorator(
+            Executors.newSingleThreadExecutor()
+        )
+    }
+
+    private val executorService: ListeningExecutorService by lazy {
+        DEFAULT_EXECUTOR_SERVICE.get()
+    }
+
+    override fun decodeBitmap(data: ByteArray): ListenableFuture<Bitmap> {
+        return executorService.submit<Bitmap> {
+            decode(
+                data
+            )
+        }
+    }
+
+    override fun loadBitmap(uri: Uri): ListenableFuture<Bitmap> {
+        return executorService.submit<Bitmap> {
+            load(uri)
+        }
+    }
+
+    private fun decode(data: ByteArray): Bitmap {
+        val bitmap = BitmapFactory.decodeByteArray(data, 0, data.size)
+        return bitmap ?: throw IllegalArgumentException("Could not decode bitmap")
+    }
+
+    @Throws(IOException::class)
+    private fun load(uri: Uri): Bitmap {
+        return BitmapFactory.decodeFile(uri.path)
+    }
+}

ultrasonic/src/main/kotlin/org/moire/ultrasonic/imageloader/BitmapUtils.kt

@@ -32,7 +32,7 @@ class BitmapUtils {
             if (track == null) return null
             val albumArtFile = FileUtil.getAlbumArtFile(track)
             val bitmap: Bitmap? = null
-            if (albumArtFile != null && File(albumArtFile).exists()) {
+            if (File(albumArtFile).exists()) {
                 return getBitmapFromDisk(albumArtFile, size, bitmap)
             }
             return null
@@ -50,35 +50,6 @@ class BitmapUtils {
             return null
         }
 
-        @Suppress("DEPRECATION")
-        fun getSampledBitmap(bytes: ByteArray, size: Int): Bitmap? {
-            val opt = BitmapFactory.Options()
-            if (size > 0) {
-                // With this flag we only calculate the size first
-                opt.inJustDecodeBounds = true
-
-                // Decode the size
-                BitmapFactory.decodeByteArray(bytes, 0, bytes.size, opt)
-
-                // Now set the remaining flags
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
-                    opt.inDither = true
-                    opt.inPreferQualityOverSpeed = true
-                }
-
-                opt.inSampleSize = Util.calculateInSampleSize(
-                    opt,
-                    size,
-                    Util.getScaledHeight(opt.outHeight.toDouble(), opt.outWidth.toDouble(), size)
-                )
-
-                // Enable real decoding
-                opt.inJustDecodeBounds = false
-            }
-            Timber.i("getSampledBitmap %s", size.toString())
-            return BitmapFactory.decodeByteArray(bytes, 0, bytes.size, opt)
-        }
-
         @Suppress("DEPRECATION")
         private fun getBitmapFromDisk(
             path: String,

ultrasonic/src/main/kotlin/org/moire/ultrasonic/playback/MediaNotificationProvider.kt

@@ -20,11 +20,12 @@ import androidx.media3.session.SessionCommand
 import org.koin.core.component.KoinComponent
 import org.koin.core.component.inject
 import org.moire.ultrasonic.R
+import org.moire.ultrasonic.imageloader.ArtworkBitmapLoader
 import org.moire.ultrasonic.service.MediaPlayerController
 
 @UnstableApi
 class MediaNotificationProvider(context: Context) :
-    DefaultMediaNotificationProvider(context), KoinComponent {
+    DefaultMediaNotificationProvider(context, ArtworkBitmapLoader()), KoinComponent {
 
     /*
     * It is currently not possible to edit a MediaItem after creation so the isRated value