X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/6bda628718f67c04ed43e8328f55bdce5319c504..101ed6b74e0d6549e53a7c8216147af37ffc70df:/Projects/Magstripe/Lib/CircularBitBuffer.c?ds=inline diff --git a/Projects/Magstripe/Lib/CircularBitBuffer.c b/Projects/Magstripe/Lib/CircularBitBuffer.c index c1b21039c..39749d107 100644 --- a/Projects/Magstripe/Lib/CircularBitBuffer.c +++ b/Projects/Magstripe/Lib/CircularBitBuffer.c @@ -1,25 +1,25 @@ /* LUFA Library - Copyright (C) Dean Camera, 2010. - + Copyright (C) Dean Camera, 2019. + dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com + www.lufa-lib.org */ /* Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com) - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2019 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 + The author disclaims all warranties with regard to this software, including all implied warranties of merchantability and fitness. In no event shall the author be liable for any special, indirect or consequential damages or any damages @@ -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; } +