c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/* SPDX-FileCopyrightText: 2023 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup bli
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*/
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#include "BLI_math_inline.h"
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#include "BLI_utildefines.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Search the value from LSB to MSB for a set bit. Returns index of this bit. */
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MINLINE int bitscan_forward_i(int a);
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MINLINE unsigned int bitscan_forward_uint(unsigned int a);
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MINLINE unsigned int bitscan_forward_uint64(unsigned long long a);
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/* Similar to above, but also clears the bit. */
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MINLINE int bitscan_forward_clear_i(int *a);
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MINLINE unsigned int bitscan_forward_clear_uint(unsigned int *a);
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/* Search the value from MSB to LSB for a set bit. Returns index of this bit. */
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MINLINE int bitscan_reverse_i(int a);
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MINLINE unsigned int bitscan_reverse_uint(unsigned int a);
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MINLINE unsigned int bitscan_reverse_uint64(unsigned long long a);
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/* Similar to above, but also clears the bit. */
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MINLINE int bitscan_reverse_clear_i(int *a);
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MINLINE unsigned int bitscan_reverse_clear_uint(unsigned int *a);
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/* NOTE: Those functions returns 2 to the power of index of highest order bit. */
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MINLINE unsigned int highest_order_bit_uint(unsigned int n);
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MINLINE unsigned short highest_order_bit_s(unsigned short n);
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#ifdef __GNUC__
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# define count_bits_i(i) __builtin_popcount(i)
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#else
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MINLINE int count_bits_i(unsigned int n);
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#endif
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MINLINE int float_as_int(float f);
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MINLINE unsigned int float_as_uint(float f);
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MINLINE float int_as_float(int i);
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MINLINE float uint_as_float(unsigned int i);
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MINLINE float xor_fl(float x, int y);
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#if BLI_MATH_DO_INLINE
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# include "intern/math_bits_inline.c"
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#endif
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#ifdef __cplusplus
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}
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#endif
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