Expandable player: static poster during collapse/morph, live player only when expanded — vc=77

The remaining sluggishness was scaling a live-playing TextureView through
the morph's graphicsLayer every frame. Now the minibar + the whole
collapse/expand morph render the video's static poster (AsyncImage); the
live PlayerView only mounts once settled fully expanded. Audio is
unaffected — it's owned by the foreground service, never stops.

buildSrc/src/main/kotlin/ProjectConfig.kt

@@ -9,6 +9,13 @@ const val STRAW_SDK_TARGET = 35
 
 // Sulkta fork — Straw
 //
+// vc=77 / 0.1.0-CK — morph perf: static poster during collapse/morph:
+//   * The minibar + the whole collapse/expand morph now render the video's
+//     static poster, not the live TextureView. Scaling a live-playing
+//     TextureView through the morph's graphicsLayer every frame was the
+//     remaining sluggishness; the live PlayerView only mounts once settled
+//     fully expanded. Audio is unaffected (it's in the foreground service).
+//
 // vc=76 / 0.1.0-CJ — expandable-player smoothness pass:
 //   * The detail body no longer renders to an offscreen buffer every
 //     frame during the morph (CompositingStrategy.ModulateAlpha) — that
@@ -82,6 +89,6 @@ const val STRAW_SDK_TARGET = 35
 // vc=19 / 0.1.0-AE — rust pipeline cutover. Extraction via
 // strawcore-core (Sulkta-Coop/strawcore) via the UniFFI wrapper; no
 // NewPipeExtractor in the runtime path.
-const val STRAW_VERSION_CODE = 76
-const val STRAW_VERSION_NAME = "0.1.0-CJ"
+const val STRAW_VERSION_CODE = 77
+const val STRAW_VERSION_NAME = "0.1.0-CK"
 const val STRAW_APPLICATION_ID = "com.sulkta.straw"

strawApp/src/main/kotlin/com/sulkta/straw/feature/player/ExpandablePlayer.kt

@@ -385,7 +385,7 @@ fun ExpandablePlayer(
             InlinePlayerSurface(
                 streamUrl = cur.streamUrl,
                 title = cur.title,
-                controlsEnabled = fullyExpanded,
+                expanded = fullyExpanded,
                 onFullscreen = { onFullscreen(cur.streamUrl, cur.title) },
             )
         }
@@ -413,17 +413,18 @@ private fun BarIconButton(
  * The single TextureView-backed PlayerView, plus the resolve→play wiring
  * that used to live in VideoDetailScreen's InlinePlayer. Renders a
  * thumbnail + spinner until the shared controller has actually swapped to
- * this video, then the live surface. [controlsEnabled] gates the Media3
- * controller overlay (off while collapsed so taps fall through to the
- * expand gesture). Honors the Auto-start-playback setting: when off, a
- * Play overlay waits for a tap before priming the stream.
+ * this video. [expanded] = fully expanded + settled: only then do we mount
+ * the live PlayerView (+ controls). While collapsed or mid-morph we show a
+ * static poster instead, so the morph never scales a live TextureView frame
+ * by frame (the sluggishness). Honors Auto-start-playback: when off, a Play
+ * overlay waits for a tap before priming the stream.
  */
 @OptIn(UnstableApi::class)
 @Composable
 private fun InlinePlayerSurface(
     streamUrl: String,
     title: String,
-    controlsEnabled: Boolean,
+    expanded: Boolean,
     onFullscreen: () -> Unit,
 ) {
     val controller = LocalStrawController.current
@@ -533,40 +534,49 @@ private fun InlinePlayerSurface(
                 }
                 CircularProgressIndicator(color = Color.White)
             }
+            !expanded -> {
+                // Collapsed or mid-morph: show the static poster, NOT the live
+                // TextureView. Scaling a live-playing TextureView through the
+                // morph's graphicsLayer every frame was the remaining cost —
+                // only mount the real player once we've settled fully expanded.
+                // Audio keeps playing via the service the whole time.
+                val poster = nowPlaying?.thumbnail ?: thumbnail
+                if (!poster.isNullOrBlank()) {
+                    AsyncImage(
+                        model = poster,
+                        contentDescription = null,
+                        modifier = Modifier.fillMaxSize(),
+                    )
+                }
+            }
             else -> {
                 AndroidView(
                     factory = { ctx ->
                         // Inflate from XML for a TEXTURE_VIEW surface — a
-                        // SurfaceView won't follow the graphicsLayer scale,
-                        // which is exactly the morph here.
+                        // SurfaceView won't follow the graphicsLayer scale.
                         (LayoutInflater.from(ctx)
                             .inflate(R.layout.inline_player_view, null) as PlayerView)
                             .apply {
                                 player = controller
-                                useController = controlsEnabled
+                                useController = true
                                 keepScreenOn = true
                             }
                     },
-                    update = {
-                        it.player = controller
-                        it.useController = controlsEnabled
-                    },
+                    update = { it.player = controller },
                     onRelease = { it.player = null },
                     modifier = Modifier.fillMaxSize(),
                 )
-                if (controlsEnabled) {
-                    Box(
-                        modifier = Modifier
-                            .align(Alignment.TopEnd)
-                            .padding(8.dp)
-                            .size(36.dp)
-                            .clip(RoundedCornerShape(6.dp))
-                            .background(OverlayChromeColor)
-                            .clickable(onClick = onFullscreen),
-                        contentAlignment = Alignment.Center,
-                    ) {
-                        Text("⛶", color = Color.White)
-                    }
+                Box(
+                    modifier = Modifier
+                        .align(Alignment.TopEnd)
+                        .padding(8.dp)
+                        .size(36.dp)
+                        .clip(RoundedCornerShape(6.dp))
+                        .background(OverlayChromeColor)
+                        .clickable(onClick = onFullscreen),
+                    contentAlignment = Alignment.Center,
+                ) {
+                    Text("⛶", color = Color.White)
                 }
             }
         }