More displayio code updates

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

diff --git a/displayio/_helpers.py b/displayio/_helpers.py
new file mode 100644 (file)
index 0000000..cbff9f4
--- /dev/null
+++ b/displayio/_helpers.py
@@ -0,0 +1,29 @@
+# SPDX-FileCopyrightText: 2023 Melissa LeBlanc-Williams for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+"""
+`displayio.helpers`
+================================================================================
+
+displayio for Blinka
+
+**Software and Dependencies:**
+
+* Adafruit Blinka:
+  https://github.com/adafruit/Adafruit_Blinka/releases
+
+* Author(s): Melissa LeBlanc-Williams
+
+"""
+
+__version__ = "0.0.0+auto.0"
+__repo__ = "https://github.com/adafruit/Adafruit_Blinka_displayio.git"
+
+def clamp(value, min_value, max_value):
+    """Clamp a value between a minimum and maximum value"""
+    return max(min(max_value, value), min_value)
+
+def bswap16(value):
+    """Swap the bytes in a 16 bit value"""
+    return (value & 0xFF00) >> 8 | (value & 0x00FF) << 8
\ No newline at end of file