mirror of
https://gitlab.winehq.org/wine/vkd3d.git
synced 2024-11-21 16:46:41 -08:00
380 lines
9.9 KiB
C
380 lines
9.9 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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#define WIN32_LEAN_AND_MEAN
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#include "vkd3d_windows.h"
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#include "vkd3d_types.h"
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#include <ctype.h>
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#include <limits.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef _MSC_VER
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#include <intrin.h>
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#endif
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#ifndef ARRAY_SIZE
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# define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
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#endif
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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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#define VKD3D_MAKE_TAG(ch0, ch1, ch2, ch3) \
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((uint32_t)(ch0) | ((uint32_t)(ch1) << 8) \
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| ((uint32_t)(ch2) << 16) | ((uint32_t)(ch3) << 24))
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#define TAG_AON9 VKD3D_MAKE_TAG('A', 'o', 'n', '9')
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#define TAG_DXBC VKD3D_MAKE_TAG('D', 'X', 'B', 'C')
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#define TAG_DXIL VKD3D_MAKE_TAG('D', 'X', 'I', 'L')
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#define TAG_FX10 VKD3D_MAKE_TAG('F', 'X', '1', '0')
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#define TAG_ISG1 VKD3D_MAKE_TAG('I', 'S', 'G', '1')
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#define TAG_ISGN VKD3D_MAKE_TAG('I', 'S', 'G', 'N')
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#define TAG_OSG1 VKD3D_MAKE_TAG('O', 'S', 'G', '1')
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#define TAG_OSG5 VKD3D_MAKE_TAG('O', 'S', 'G', '5')
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#define TAG_OSGN VKD3D_MAKE_TAG('O', 'S', 'G', 'N')
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#define TAG_PCSG VKD3D_MAKE_TAG('P', 'C', 'S', 'G')
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#define TAG_PSG1 VKD3D_MAKE_TAG('P', 'S', 'G', '1')
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#define TAG_RD11 VKD3D_MAKE_TAG('R', 'D', '1', '1')
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#define TAG_RDEF VKD3D_MAKE_TAG('R', 'D', 'E', 'F')
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#define TAG_RTS0 VKD3D_MAKE_TAG('R', 'T', 'S', '0')
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#define TAG_SDBG VKD3D_MAKE_TAG('S', 'D', 'B', 'G')
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#define TAG_SHDR VKD3D_MAKE_TAG('S', 'H', 'D', 'R')
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#define TAG_SHEX VKD3D_MAKE_TAG('S', 'H', 'E', 'X')
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#define TAG_STAT VKD3D_MAKE_TAG('S', 'T', 'A', 'T')
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#define TAG_TEXT VKD3D_MAKE_TAG('T', 'E', 'X', 'T')
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#define TAG_XNAP VKD3D_MAKE_TAG('X', 'N', 'A', 'P')
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#define TAG_XNAS VKD3D_MAKE_TAG('X', 'N', 'A', 'S')
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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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#if defined(__GNUC__) || defined(__clang__)
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# define VKD3D_NORETURN __attribute__((noreturn))
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# ifdef __MINGW_PRINTF_FORMAT
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# define VKD3D_PRINTF_FUNC(fmt, args) __attribute__((format(__MINGW_PRINTF_FORMAT, fmt, args)))
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# else
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# define VKD3D_PRINTF_FUNC(fmt, args) __attribute__((format(printf, fmt, args)))
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# endif
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# define VKD3D_UNUSED __attribute__((unused))
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# define VKD3D_UNREACHABLE __builtin_unreachable()
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#else
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# define VKD3D_NORETURN
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# define VKD3D_PRINTF_FUNC(fmt, args)
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# define VKD3D_UNUSED
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# define VKD3D_UNREACHABLE (void)0
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#endif /* __GNUC__ */
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VKD3D_NORETURN static inline void vkd3d_unreachable_(const char *filename, unsigned int line)
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{
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fprintf(stderr, "%s:%u: Aborting, reached unreachable code.\n", filename, line);
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abort();
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}
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#ifdef NDEBUG
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#define vkd3d_unreachable() VKD3D_UNREACHABLE
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#else
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#define vkd3d_unreachable() vkd3d_unreachable_(__FILE__, __LINE__)
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#endif
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static inline unsigned int vkd3d_popcount(unsigned int v)
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{
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#ifdef _MSC_VER
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return __popcnt(v);
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#elif defined(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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static inline bool vkd3d_bitmask_is_contiguous(unsigned int mask)
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{
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unsigned int i, j;
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for (i = 0, j = 0; i < sizeof(mask) * CHAR_BIT; ++i)
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{
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if (mask & (1u << i))
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++j;
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else if (j)
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break;
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}
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return vkd3d_popcount(mask) == j;
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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 _WIN32
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/* _BitScanReverse returns the index of the highest set bit,
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* unlike clz which is 31 - index. */
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ULONG result;
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_BitScanReverse(&result, x);
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return (unsigned int)result;
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#elif defined(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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static inline void *vkd3d_memmem( const void *haystack, size_t haystack_len, const void *needle, size_t needle_len)
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{
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const char *str = haystack;
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while (haystack_len >= needle_len)
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{
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if (!memcmp(str, needle, needle_len))
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return (char *)str;
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++str;
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--haystack_len;
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}
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return NULL;
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}
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static inline bool vkd3d_bound_range(size_t start, size_t count, size_t limit)
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{
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#ifdef HAVE_BUILTIN_ADD_OVERFLOW
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size_t sum;
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return !__builtin_add_overflow(start, count, &sum) && sum <= limit;
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#else
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return start <= limit && count <= limit - start;
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#endif
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}
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static inline bool vkd3d_object_range_overflow(size_t start, size_t count, size_t size)
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{
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return (~(size_t)0 - start) / size < count;
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}
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static inline uint16_t vkd3d_make_u16(uint8_t low, uint8_t high)
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{
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return low | ((uint16_t)high << 8);
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}
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static inline uint32_t vkd3d_make_u32(uint16_t low, uint16_t high)
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{
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return low | ((uint32_t)high << 16);
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}
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static inline int vkd3d_u32_compare(uint32_t x, uint32_t y)
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{
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return (x > y) - (x < y);
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}
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static inline bool bitmap_clear(uint32_t *map, unsigned int idx)
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{
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return map[idx >> 5] &= ~(1u << (idx & 0x1f));
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}
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static inline bool bitmap_set(uint32_t *map, unsigned int idx)
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{
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return map[idx >> 5] |= (1u << (idx & 0x1f));
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}
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static inline bool bitmap_is_set(const uint32_t *map, unsigned int idx)
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{
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return map[idx >> 5] & (1u << (idx & 0x1f));
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}
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static inline int ascii_isupper(int c)
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{
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return 'A' <= c && c <= 'Z';
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}
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static inline int ascii_tolower(int c)
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{
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return ascii_isupper(c) ? c - 'A' + 'a' : c;
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}
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static inline int ascii_strncasecmp(const char *a, const char *b, size_t n)
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{
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int c_a, c_b;
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while (n--)
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{
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c_a = ascii_tolower(*a++);
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c_b = ascii_tolower(*b++);
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if (c_a != c_b || !c_a)
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return c_a - c_b;
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}
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return 0;
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}
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static inline int ascii_strcasecmp(const char *a, const char *b)
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{
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int c_a, c_b;
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do
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{
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c_a = ascii_tolower(*a++);
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c_b = ascii_tolower(*b++);
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} while (c_a == c_b && c_a != '\0');
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return c_a - c_b;
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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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static inline LONG64 InterlockedIncrement64(LONG64 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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static inline void vkd3d_parse_version(const char *version, int *major, int *minor)
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{
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*major = atoi(version);
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while (isdigit(*version))
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++version;
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if (*version == '.')
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++version;
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*minor = atoi(version);
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}
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HRESULT hresult_from_vkd3d_result(int vkd3d_result);
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#ifdef _WIN32
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static inline void *vkd3d_dlopen(const char *name)
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{
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return LoadLibraryA(name);
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}
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static inline void *vkd3d_dlsym(void *handle, const char *symbol)
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{
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return GetProcAddress(handle, symbol);
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}
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static inline int vkd3d_dlclose(void *handle)
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{
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return FreeLibrary(handle);
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}
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static inline const char *vkd3d_dlerror(void)
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{
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unsigned int error = GetLastError();
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static char message[256];
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if (FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, error, 0, message, sizeof(message), NULL))
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return message;
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sprintf(message, "Unknown error %u.\n", error);
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return message;
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}
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#elif defined(HAVE_DLFCN_H)
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#include <dlfcn.h>
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static inline void *vkd3d_dlopen(const char *name)
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{
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return dlopen(name, RTLD_NOW);
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}
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static inline void *vkd3d_dlsym(void *handle, const char *symbol)
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{
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return dlsym(handle, symbol);
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}
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static inline int vkd3d_dlclose(void *handle)
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{
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return dlclose(handle);
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}
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static inline const char *vkd3d_dlerror(void)
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{
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return dlerror();
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}
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#else
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static inline void *vkd3d_dlopen(const char *name)
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{
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return NULL;
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}
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static inline void *vkd3d_dlsym(void *handle, const char *symbol)
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{
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return NULL;
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}
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static inline int vkd3d_dlclose(void *handle)
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{
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return 0;
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}
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static inline const char *vkd3d_dlerror(void)
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{
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return "Not implemented for this platform.\n";
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}
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#endif
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#endif /* __VKD3D_COMMON_H */
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