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folium-app
GitHub Repository: folium-app/Folium
 Path: blob/a-new-beginning/SharedDependencies/Sources/libchdr/include/bitstream.h
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/* license:BSD-3-Clause

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 * copyright-holders:Aaron Giles

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***************************************************************************

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    bitstream.h

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    Helper classes for reading/writing at the bit level.

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***************************************************************************/

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#pragma once

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#ifndef __BITSTREAM_H__

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#define __BITSTREAM_H__

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#include <stdint.h>

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/***************************************************************************

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 *  TYPE DEFINITIONS

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 ***************************************************************************

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 */

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/* helper class for reading from a bit buffer */

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struct bitstream

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{

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	uint32_t          buffer;       /* current bit accumulator */

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	int               bits;         /* number of bits in the accumulator */

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	const uint8_t *   read;         /* read pointer */

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	uint32_t          doffset;      /* byte offset within the data */

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	uint32_t          dlength;      /* length of the data */

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};

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struct bitstream* 	create_bitstream(const void *src, uint32_t srclength);

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int 				bitstream_overflow(struct bitstream* bitstream);

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uint32_t 			bitstream_read_offset(struct bitstream* bitstream);

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uint32_t 			bitstream_read(struct bitstream* bitstream, int numbits);

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uint32_t 			bitstream_peek(struct bitstream* bitstream, int numbits);

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void 				bitstream_remove(struct bitstream* bitstream, int numbits);

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uint32_t 			bitstream_flush(struct bitstream* bitstream);

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#endif

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