chore: re-organise source files for color LCD UI (#5358)

radio/src/bitfield.h

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) EdgeTX
+ *
+ * Based on code named
+ *   libopenui - https://github.com/opentx/libopenui
+ *
+ * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#pragma once
+
+#include <inttypes.h>
+
+// A set of bitfield handling macros
+
+template <typename T>
+inline T bfBit(uint8_t n)
+{
+  return T(1) << n;
+}
+
+#define BFBIT_FLIP(y, mask)       ( y ^=  (mask) )
+
+//! Create a bitmask of length 'len'.
+template <typename T>
+inline T bfBitmask(uint8_t len)
+{
+  return bfBit<T>(len) - 1;
+}
+
+//! Create a bitfield mask of length 'len' starting at bit 'start'.
+template <typename T>
+inline T bfMask(uint8_t start, uint8_t len)
+{
+  return bfBitmask<T>(len) << start;
+}
+
+//! Prepare a bitmask for insertion or combining.
+template <typename T>
+inline T bfPrep(T x, uint8_t start, uint8_t len)
+{
+  return (x & bfBitmask<T>(len)) << start;
+}
+
+//! Extract a bitfield of length 'len' starting at bit 'start' from  'y'.
+template <typename T>
+inline T bfGet(T y, uint8_t start, uint8_t len)
+{
+  return ((y)>>(start)) & bfBitmask<T>(len);
+}
+
+//! Insert 'len' bits of 'x 'into 'y', starting at bit 'start' from  'y'.
+template <class T>
+inline T bfSet(T to, T from, uint8_t start, uint8_t len)
+{
+  return (to & ~bfMask<T>(start, len)) | bfPrep<T>(from, start, len);
+}
+
+template <class T>
+inline T bfBitGet(T y, T mask)
+{
+  return (y & mask);
+}
+
+template <class T>
+inline T bfSingleBitGet(T y, uint8_t i)
+{
+  return bfBitGet(y, bfBit<T>(i));
+}
+