From 7c5bf77f17dab0d9e080f12cb4db23aa3bfeab4f Mon Sep 17 00:00:00 2001
From: Kurt Himebauch <136133082+xXJSONDeruloXx@users.noreply.github.com>
Date: Thu, 5 Nov 2026 09:44:56 -0500
Subject: [PATCH] fix: fit output after pip resize

---
 .../main/java/com/droiddeck/launcher/SessionActivity.kt   | 4 +++-
 .../main/java/com/droiddeck/launcher/session/PipPolicy.kt | 8 ++++++++
 .../java/com/droiddeck/launcher/session/PipPolicyTest.kt  | 6 ++++++
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/droiddeck/launcher/SessionActivity.kt b/app/src/main/java/com/droiddeck/launcher/SessionActivity.kt
index 6aa3354ba..023679de2 100644
--- a/app/src/main/java/com/droiddeck/launcher/SessionActivity.kt
+++ b/app/src/main/java/com/droiddeck/launcher/SessionActivity.kt
@@ -2220,7 +2220,9 @@ class SessionActivity : ComponentActivity(), SurfaceHolder.Callback {
     }
 
     private fun windowOutputSize(width: Int, height: Int): Pair<Int, Int>? {
-        if (isInPictureInPictureMode || width <= 0 || height <= 0) return null
+        if (width <= 0 || height <= 0) return null
+        if (isInPictureInPictureMode) return com.droiddeck.launcher.session.PipPolicy.outputSize(
+            width, height, SessionState.outputSize.first, SessionState.outputSize.second)
         if (bottomGame != null) return when {
             SessionState.followScreen ->
                 com.droiddeck.launcher.session.SessionDisplay.followSize(width, height, false, SessionState.followScale)
diff --git a/app/src/main/java/com/droiddeck/launcher/session/PipPolicy.kt b/app/src/main/java/com/droiddeck/launcher/session/PipPolicy.kt
index d2d4d49bd..b5c9f112f 100644
--- a/app/src/main/java/com/droiddeck/launcher/session/PipPolicy.kt
+++ b/app/src/main/java/com/droiddeck/launcher/session/PipPolicy.kt
@@ -11,4 +11,12 @@ object PipPolicy {
         height.toDouble() / width > 2.39 -> 100 to 239
         else -> width to height
     }
+
+    fun outputSize(width: Int, height: Int, outputWidth: Int, outputHeight: Int): Pair<Int, Int>? {
+        if (width <= 0 || height <= 0 || outputWidth <= 0 || outputHeight <= 0) return null
+        val scale = minOf(width.toFloat() / outputWidth, height.toFloat() / outputHeight)
+        val fittedWidth = ((outputWidth * scale).toInt() and 1.inv()).coerceAtLeast(2)
+        val fittedHeight = ((outputHeight * scale).toInt() and 1.inv()).coerceAtLeast(2)
+        return fittedWidth to fittedHeight
+    }
 }
diff --git a/app/src/test/java/com/droiddeck/launcher/session/PipPolicyTest.kt b/app/src/test/java/com/droiddeck/launcher/session/PipPolicyTest.kt
index 1261abd54..40b169fad 100644
--- a/app/src/test/java/com/droiddeck/launcher/session/PipPolicyTest.kt
+++ b/app/src/test/java/com/droiddeck/launcher/session/PipPolicyTest.kt
@@ -24,4 +24,10 @@ class PipPolicyTest {
         assertEquals(100 to 239, PipPolicy.aspect(1080, 5760))
         assertEquals(16 to 9, PipPolicy.aspect(0, 0))
     }
+
+    @Test fun pipOutputFitsTheResizedSurfaceWithoutChangingAspectRatio() {
+        assertEquals(640 to 360, PipPolicy.outputSize(640, 480, 1920, 1080))
+        assertEquals(480 to 270, PipPolicy.outputSize(480, 270, 1920, 1080))
+        assertNull(PipPolicy.outputSize(0, 270, 1920, 1080))
+    }
 }