From 4f45d483a25044d410981b5ff41efc96d3b0a131 Mon Sep 17 00:00:00 2001
From: Prashanth Swaminathan <prashanthsw@google.com>
Date: Fri, 17 Mar 2023 17:09:56 +0000
Subject: [PATCH] Revert "Use toolkit instead of renderscript in SystemUI"

This reverts commit 76ddc55b975b8df100f3df407a7563af59b4912d.

Reason for revert: This is breaking some Gradle builds, reverting while we figure out a more proper fix.

Change-Id: Ic6a89c805598620a36199ae66342279585221555
---
 packages/SystemUI/Android.bp                  |  2 --
 .../statusbar/MediaArtworkProcessor.kt        | 28 ++++++++++++++++---
 2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/packages/SystemUI/Android.bp b/packages/SystemUI/Android.bp
index beade793c8621..cd0fbea6a2d2b 100644
--- a/packages/SystemUI/Android.bp
+++ b/packages/SystemUI/Android.bp
@@ -177,7 +177,6 @@ android_library {
         "lottie",
         "LowLightDreamLib",
         "motion_tool_lib",
-        "renderscript_toolkit",
     ],
     manifest: "AndroidManifest.xml",
 
@@ -271,7 +270,6 @@ android_library {
         "WindowManager-Shell",
         "LowLightDreamLib",
         "motion_tool_lib",
-        "renderscript_toolkit",
         "androidx.core_core-animation-testing-nodeps",
     ],
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/MediaArtworkProcessor.kt b/packages/SystemUI/src/com/android/systemui/statusbar/MediaArtworkProcessor.kt
index dd713ae1c6370..750272d656598 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/MediaArtworkProcessor.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/MediaArtworkProcessor.kt
@@ -21,17 +21,20 @@ import android.graphics.Bitmap
 import android.graphics.Canvas
 import android.graphics.Point
 import android.graphics.Rect
+import android.renderscript.Allocation
+import android.renderscript.Element
+import android.renderscript.RenderScript
+import android.renderscript.ScriptIntrinsicBlur
 import android.util.Log
 import android.util.MathUtils
 import com.android.internal.graphics.ColorUtils
 import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.statusbar.notification.MediaNotificationProcessor
-import com.google.android.renderscript.Toolkit
 import javax.inject.Inject
 
 private const val TAG = "MediaArtworkProcessor"
 private const val COLOR_ALPHA = (255 * 0.7f).toInt()
-private const val BLUR_RADIUS = 25
+private const val BLUR_RADIUS = 25f
 private const val DOWNSAMPLE = 6
 
 @SysUISingleton
@@ -44,6 +47,10 @@ class MediaArtworkProcessor @Inject constructor() {
         if (mArtworkCache != null) {
             return mArtworkCache
         }
+        val renderScript = RenderScript.create(context)
+        val blur = ScriptIntrinsicBlur.create(renderScript, Element.U8_4(renderScript))
+        var input: Allocation? = null
+        var output: Allocation? = null
         var inBitmap: Bitmap? = null
         try {
             @Suppress("DEPRECATION")
@@ -59,8 +66,18 @@ class MediaArtworkProcessor @Inject constructor() {
                 inBitmap = oldIn.copy(Bitmap.Config.ARGB_8888, false /* isMutable */)
                 oldIn.recycle()
             }
+            val outBitmap = Bitmap.createBitmap(inBitmap.width, inBitmap.height,
+                    Bitmap.Config.ARGB_8888)
+
+            input = Allocation.createFromBitmap(renderScript, inBitmap,
+                    Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_GRAPHICS_TEXTURE)
+            output = Allocation.createFromBitmap(renderScript, outBitmap)
+
+            blur.setRadius(BLUR_RADIUS)
+            blur.setInput(input)
+            blur.forEach(output)
+            output.copyTo(outBitmap)
 
-            val outBitmap = Toolkit.blur(inBitmap, BLUR_RADIUS)
             val swatch = MediaNotificationProcessor.findBackgroundSwatch(artwork)
 
             val canvas = Canvas(outBitmap)
@@ -70,6 +87,9 @@ class MediaArtworkProcessor @Inject constructor() {
             Log.e(TAG, "error while processing artwork", ex)
             return null
         } finally {
+            input?.destroy()
+            output?.destroy()
+            blur.destroy()
             inBitmap?.recycle()
         }
     }
@@ -78,4 +98,4 @@ class MediaArtworkProcessor @Inject constructor() {
         mArtworkCache?.recycle()
         mArtworkCache = null
     }
-}
+}
\ No newline at end of file