Create code-fast.py

CircuitPython_gifio/Single/code-fast.py

@@ -0,0 +1,38 @@
+# SPDX-FileCopyrightText: 2023 Anne Barela for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+#
+# Play a single animated GIF file (display_bus method)
+#
+# Documentation:
+#   https://docs.circuitpython.org/en/latest/shared-bindings/gifio/
+# Updated 3/29/2023
+import board
+import struct
+import gifio
+import time
+
+display = board.DISPLAY
+# Take over display to drive directly
+display.auto_refresh = False
+display_bus = display.bus
+
+try:
+    odg = gifio.OnDiskGif('/sample.gif')
+except OSError:  # pylint: disable=broad-except
+    raise Exception("sample.gif was not found\n")
+start = time.monotonic()
+next_delay = odg.next_frame()  # Load the first frame
+end = time.monotonic()
+overhead = end - start
+
+# Display repeatedly & directly.
+while True:
+    # Sleep for the frame delay specified by the GIF,
+    # minus the overhead measured to advance between frames.
+    time.sleep(max(0, next_delay - overhead))
+    next_delay = odg.next_frame()
+
+    display_bus.send(42, struct.pack(">hh", 0, odg.bitmap.width - 1))
+    display_bus.send(43, struct.pack(">hh", 0, odg.bitmap.height - 1))
+    display_bus.send(44, odg.bitmap)