catch negative values set by out of preview bound press

Reviewed-on: #20

package/android/src/main/java/com/mrousavy/camera/core/PersistentCameraCaptureSession.kt

@@ -235,10 +235,15 @@ class PersistentCameraCaptureSession(private val cameraManager: CameraManager, p
 
       // 1. Run a precapture sequence for AF, AE and AWB.
       focusJob = coroutineScope.launch {
+        try {
           val request = repeatingRequest.createCaptureRequest(device, deviceDetails, outputs)
           val options =
             PrecaptureOptions(listOf(PrecaptureTrigger.AF, PrecaptureTrigger.AE), Flash.OFF, listOf(point), false, FOCUS_RESET_TIMEOUT)
           session.precapture(request, deviceDetails, options)
+        } catch (e: CaptureTimedOutError) {
+          // Focus timed out - this is non-fatal, just log and continue
+          Log.w(TAG, "Focus timed out at point $point, continuing without focus lock")
+        }
       }
       focusJob?.join()
 

package/android/src/main/java/com/mrousavy/camera/core/PreviewView.kt

@@ -198,8 +198,10 @@ class PreviewView(context: Context, callback: SurfaceHolder.Callback) :
     val viewOrientation = Orientation.PORTRAIT
 
     val rotated = point.rotatedBy(viewSize, cameraSize, viewOrientation, sensorOrientation)
-    Log.i(TAG, "Converted layer point $point to camera point $rotated! ($sensorOrientation, $cameraSize -> $viewSize)")
+    // Clamp to valid camera coordinates (must be non-negative for MeteringRectangle)
-    return rotated
+    val clamped = Point(maxOf(0, rotated.x), maxOf(0, rotated.y))
+    Log.i(TAG, "Converted layer point $point to camera point $clamped! ($sensorOrientation, $cameraSize -> $viewSize)")
+    return clamped
   }
 
   private fun updateLayout() {