Campbell Barton
c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/* 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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