fix: bottom screen frame graph updates smoothly and no longer looks jagged (#2013)

app/src/main/java/com/droiddeck/launcher/ui/BottomStrip.kt

@@ -27,7 +27,7 @@ import kotlinx.coroutines.isActive
 import kotlinx.coroutines.withContext
 import java.io.File
 
-private const val STRIP_FRAME_MS = 100L
+private const val STRIP_FRAME_MS = 33L
 private const val STRIP_METRICS_MS = 500L
 private const val STRIP_TEMP_PLAIN = 0xFFF2F5F9.toInt()
 

app/src/main/java/com/droiddeck/launcher/ui/BottomTelemetryPage.kt

@@ -96,7 +96,7 @@ private const val ELITE_MS = 1_000L
 private const val ELITE_SEARCH_MS = 10_000L
 private const val OUTPUT_SCAN_MS = 3_000L
 private const val PERF_N = 60
-private const val FRAME_MS = 100L
+private const val FRAME_MS = 33L
 private const val MINUTE_NS = 60_000_000_000L
 private const val TEMP_PLAIN = 0xFFF2F5F9.toInt()
 

app/src/main/java/com/droiddeck/launcher/ui/StatsHud.kt

@@ -65,6 +65,7 @@ import com.droiddeck.launcher.hud.FrameStats
 import com.droiddeck.launcher.hud.HudMetrics
 import com.droiddeck.launcher.session.StatsHud
 import java.io.File
+import kotlin.math.ceil
 import kotlin.math.max
 import kotlin.math.min
 import kotlin.math.roundToInt
@@ -264,13 +265,18 @@ private fun lowsText(d: HudData, size: TextUnit, accent: Color, deep: Boolean =
     }
 }
 
+private val GRAPH_MIN_GAP = 3.dp
+
 @Composable
 private fun Graph(values: List<Float>, lo: Float, hi: Float, color: Color, modifier: Modifier) {
     Canvas(modifier) {
         if (values.size < 2 || hi <= lo) return@Canvas
+        val stride = ceil(GRAPH_MIN_GAP.toPx() * (values.size - 1) / size.width).toInt().coerceAtLeast(1)
+        val points = if (stride == 1) values else values.chunked(stride) { it.average().toFloat() }
+        if (points.size < 2) return@Canvas
         val path = Path()
-        values.forEachIndexed { i, v ->
-            val x = i / (values.size - 1f) * size.width
+        points.forEachIndexed { i, v ->
+            val x = i / (points.size - 1f) * size.width
             val y = size.height - ((v - lo) / (hi - lo)).coerceIn(0f, 1f) * size.height
             if (i == 0) path.moveTo(x, y) else path.lineTo(x, y)
         }