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36 lines
653 B
C
36 lines
653 B
C
// Copyright 2019-2020, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @brief Functions for manipulating tightly packed data as bits.
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* @author Jakob Bornecrantz <jakob@collabora.com>
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* @author Pete Black <pete.black@collabora.com>
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* @ingroup aux_util
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*/
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#pragma once
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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int
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get_bit(const unsigned char *b, int num);
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int
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get_bits(const unsigned char *b, int start, int num);
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/*!
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* Interpret the least-significant 13 bits as a signed 13-bit integer, and cast
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* it to a signed int for normal usage.
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*/
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int
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sign_extend_13(uint32_t i);
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#ifdef __cplusplus
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}
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#endif
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