Remove debug code + add bus free

[hackapet/Adafruit_Blinka_Displayio.git] / displayio / _display.py

diff --git a/displayio/_display.py b/displayio/_display.py
index f2d02cfd4cadf90746aca796def6be7f44bba76d..8551f8c87fded9cea51a104f207a773995c698ca 100644 (file)
--- a/displayio/_display.py
+++ b/displayio/_display.py
@@ -338,7 +338,7 @@ class Display:
 
     def _refresh_area(self, area) -> bool:
         """Loop through dirty areas and redraw that area."""
 
     def _refresh_area(self, area) -> bool:
         """Loop through dirty areas and redraw that area."""

-        # pylint: disable=too-many-locals
+        # pylint: disable=too-many-locals, too-many-branches

 
         clipped = Area()
         # Clip the area to the display by overlapping the areas.
 
         clipped = Area()
         # Clip the area to the display by overlapping the areas.


@@ -404,6 +404,11 @@ class Display:
             buffer = memoryview(bytearray([0] * (buffer_size * 4)))
             mask = memoryview(bytearray([0] * mask_length))
             self._core.fill_area(subrectangle, mask, buffer)
             buffer = memoryview(bytearray([0] * (buffer_size * 4)))
             mask = memoryview(bytearray([0] * mask_length))
             self._core.fill_area(subrectangle, mask, buffer)

+
+            # Can't acquire display bus; skip the rest of the data.
+            if not self._core.bus_free():
+                return False
+

             self._core.begin_transaction()
             self._send_pixels(buffer[:subrectangle_size_bytes])
             self._core.end_transaction()
             self._core.begin_transaction()
             self._send_pixels(buffer[:subrectangle_size_bytes])
             self._core.end_transaction()