Initial Arduino IDE based on Processing.

build/shared/lib/avrlib/bitbuf.h

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+/*! \file bitbuf.h \brief Multipurpose bit buffer structure and methods. */
+//*****************************************************************************
+//
+// File Name	: 'bitbuf.c'
+// Title		: Multipurpose bit buffer structure and methods
+// Author		: Pascal Stang - Copyright (C) 2001-2002
+// Created		: 7/10/2002
+// Revised		: 7/10/2002
+// Version		: 0.5
+// Target MCU	: any
+// Editor Tabs	: 4
+//
+// This code is distributed under the GNU Public License
+//		which can be found at http://www.gnu.org/licenses/gpl.txt
+//
+//*****************************************************************************
+
+#ifndef BITBUF_H
+#define BITBUF_H
+
+// structure/typdefs
+
+// the BitBuffer structure
+typedef struct struct_BitBuf
+{
+	unsigned char *dataptr;			// the physical memory address where the buffer is stored
+	unsigned short	size;			// the allocated byte size of the buffer
+	unsigned short bytePos;			// current byte position
+	unsigned short bitPos;			// current bit position
+	unsigned short datalength;		// the length of the data (in bits) currently in the buffer
+	unsigned short dataindex;		// the index (in bits) into the buffer where the data starts
+} BitBuf;
+
+// function prototypes
+
+//! initialize a buffer to start at a given address and have given size
+void bitbufInit(BitBuf* bitBuffer, unsigned char *start, unsigned short bytesize);
+
+//! get the bit at the current position in the buffer
+unsigned char bitbufGet(BitBuf* bitBuffer);
+
+//! get a bit at the specified index in the buffer (kind of like array access)
+// ** note: this does not remove/delete the bit that was read
+unsigned char bitbufGetAtIndex(BitBuf* bitBuffer, unsigned short bitIndex);
+
+//! store a bit at the current position in the buffer
+void bitbufStore(BitBuf* bitBuffer, unsigned char bit);
+
+//! return the number of bits in the buffer
+unsigned short bitbufGetDataLength(BitBuf* bitBuffer);
+
+// check if the buffer is full/not full (returns non-zero value if not full)
+//unsigned char  bitbufIsNotFull(cBuffer* buffer);
+
+//! resets the read/write position of the buffer to beginning
+void bitbufReset(BitBuf* bitBuffer);
+
+//! flush (clear) the contents of the buffer
+void bitbufFlush(BitBuf* bitBuffer);
+
+#endif
+