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https://gitlab.winehq.org/wine/vkd3d.git
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bf227d4a28
Signed-off-by: Józef Kucia <jkucia@codeweavers.com> Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
110 lines
3.5 KiB
C
110 lines
3.5 KiB
C
/*
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* Copyright 2016 Józef Kucia for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __VKD3D_COMMON_H
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#define __VKD3D_COMMON_H
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#include "config.h"
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#include "vkd3d_windows.h"
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
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#define DIV_ROUND_UP(a, b) ((a) % (b) == 0 ? (a) / (b) : (a) / (b) + 1)
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#define STATIC_ASSERT(e) extern void __VKD3D_STATIC_ASSERT__(int [(e) ? 1 : -1])
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#define MEMBER_SIZE(t, m) sizeof(((t *)0)->m)
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static inline size_t align(size_t addr, size_t alignment)
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{
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return (addr + (alignment - 1)) & ~(alignment - 1);
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}
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#ifdef __GNUC__
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# define VKD3D_PRINTF_FUNC(fmt, args) __attribute__((format(printf, fmt, args)))
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# define VKD3D_UNUSED __attribute__((unused))
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#else
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# define VKD3D_PRINTF_FUNC(fmt, args)
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# define VKD3D_UNUSED
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#endif /* __GNUC__ */
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static inline unsigned int vkd3d_popcount(unsigned int v)
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{
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#ifdef HAVE_BUILTIN_POPCOUNT
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return __builtin_popcount(v);
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#else
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v -= (v >> 1) & 0x55555555;
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v = (v & 0x33333333) + ((v >> 2) & 0x33333333);
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return (((v + (v >> 4)) & 0x0f0f0f0f) * 0x01010101) >> 24;
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#endif
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}
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/* Undefined for x == 0. */
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static inline unsigned int vkd3d_log2i(unsigned int x)
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{
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#ifdef HAVE_BUILTIN_CLZ
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return __builtin_clz(x) ^ 0x1f;
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#else
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static const unsigned int l[] =
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{
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~0u, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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};
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unsigned int i;
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return (i = x >> 16) ? (x = i >> 8) ? l[x] + 24
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: l[i] + 16 : (i = x >> 8) ? l[i] + 8 : l[x];
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#endif
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}
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#ifndef _WIN32
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# if HAVE_SYNC_ADD_AND_FETCH
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static inline LONG InterlockedIncrement(LONG volatile *x)
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{
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return __sync_add_and_fetch(x, 1);
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}
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# else
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# error "InterlockedIncrement not implemented for this platform"
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# endif /* HAVE_SYNC_ADD_AND_FETCH */
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# if HAVE_SYNC_SUB_AND_FETCH
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static inline LONG InterlockedDecrement(LONG volatile *x)
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{
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return __sync_sub_and_fetch(x, 1);
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}
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# else
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# error "InterlockedDecrement not implemented for this platform"
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# endif
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#endif /* _WIN32 */
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#endif /* __VKD3D_COMMON_H */
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