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-rw-r--r--Projects/Magstripe/Lib/CircularBitBuffer.c35
1 files changed, 18 insertions, 17 deletions
diff --git a/Projects/Magstripe/Lib/CircularBitBuffer.c b/Projects/Magstripe/Lib/CircularBitBuffer.c
index c1b21039c..3b0ca6cd5 100644
--- a/Projects/Magstripe/Lib/CircularBitBuffer.c
+++ b/Projects/Magstripe/Lib/CircularBitBuffer.c
@@ -1,7 +1,7 @@
/*
LUFA Library
Copyright (C) Dean Camera, 2010.
-
+
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
@@ -10,13 +10,13 @@
Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
- Permission to use, copy, modify, distribute, and sell this
+ Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
+ without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
@@ -41,7 +41,7 @@ void BitBuffer_Init(BitBuffer_t* const Buffer)
{
/* Reset the number of stored bits in the buffer */
Buffer->Elements = 0;
-
+
/* Reset the data in and out pointer structures in the buffer to the first buffer bit */
Buffer->In.CurrentByte = Buffer->Data;
Buffer->In.ByteMask = (1 << 0);
@@ -56,10 +56,10 @@ void BitBuffer_StoreNextBit(BitBuffer_t* const Buffer,
/* If the bit to store is true, set the next bit in the buffer */
if (Bit)
*Buffer->In.CurrentByte |= Buffer->In.ByteMask;
-
+
/* Increment the number of stored bits in the buffer counter */
Buffer->Elements++;
-
+
/* Check if the current buffer byte is full of stored bits */
if (Buffer->In.ByteMask == (1 << 7))
{
@@ -68,8 +68,8 @@ void BitBuffer_StoreNextBit(BitBuffer_t* const Buffer,
Buffer->In.CurrentByte++;
else
Buffer->In.CurrentByte = Buffer->Data;
-
- /* Reset the storage bit mask in the current buffer byte to the first bit */
+
+ /* Reset the storage bit mask in the current buffer byte to the first bit */
Buffer->In.ByteMask = (1 << 0);
}
else
@@ -81,7 +81,7 @@ void BitBuffer_StoreNextBit(BitBuffer_t* const Buffer,
/** Function to retrieve the next bit stored in the given bit buffer. */
bool BitBuffer_GetNextBit(BitBuffer_t* const Buffer)
-{
+{
/* Retrieve the value of the next bit stored in the buffer */
bool Bit = ((*Buffer->Out.CurrentByte & Buffer->Out.ByteMask) != 0);
@@ -90,17 +90,17 @@ bool BitBuffer_GetNextBit(BitBuffer_t* const Buffer)
/* Decrement the number of stored bits in the buffer counter */
Buffer->Elements--;
-
- /* Check if the current buffer byte is empty of stored bits */
+
+ /* Check if the current buffer byte is empty of stored bits */
if (Buffer->Out.ByteMask == (1 << 7))
{
/* Check if the end of the buffer has been reached, if so reset to start of buffer, otherwise advance to next bit */
if (Buffer->Out.CurrentByte != &Buffer->Data[sizeof(Buffer->Data) - 1])
Buffer->Out.CurrentByte++;
else
- Buffer->Out.CurrentByte = Buffer->Data;
-
- /* Reset the retrieval bit mask in the current buffer byte to the first bit */
+ Buffer->Out.CurrentByte = Buffer->Data;
+
+ /* Reset the retrieval bit mask in the current buffer byte to the first bit */
Buffer->Out.ByteMask = (1 << 0);
}
else
@@ -112,3 +112,4 @@ bool BitBuffer_GetNextBit(BitBuffer_t* const Buffer)
/* Return the retrieved bit from the buffer */
return Bit;
}
+