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rufus/src/missing.h
2017-11-13 14:30:25 +00:00

115 lines
4.1 KiB
C

/*
* Rufus: The Reliable USB Formatting Utility
* Constants and defines missing from various toolchains
* Copyright © 2016-2017 Pete Batard <pete@akeo.ie>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <windows.h>
#pragma once
/* Convenient to have around */
#define KB 1024LL
#define MB 1048576LL
#define GB 1073741824LL
#define TB 1099511627776LL
#ifndef MIN
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#endif
#if defined(__GNUC__)
#define ALIGNED(m) __attribute__ ((__aligned__(m)))
#elif defined(_MSC_VER)
#define ALIGNED(m) __declspec(align(m))
#endif
/*
* Prefetch 64 bytes at address m, for read-only operation
* We account for these built-in calls doing nothing if the
* line has already been fetched, or if the address is invalid.
*/
#if defined(__GNUC__) || defined(__clang__)
#define PREFETCH64(m) do { __builtin_prefetch(m, 0, 0); __builtin_prefetch(m+32, 0, 0); } while(0)
#elif defined(_MSC_VER)
#if defined(_M_IX86) || defined (_M_X64)
#define PREFETCH64(m) do { _m_prefetch(m); _m_prefetch(m+32); } while(0)
#else
// _m_prefetch() doesn't seem to exist for MSVC/ARM
#define PREFETCH64(m)
#endif
#endif
/* Read/write with endianness swap */
#if defined (_MSC_VER) && (_MSC_VER >= 1300)
#include <stdlib.h>
#pragma intrinsic(_byteswap_ushort)
#pragma intrinsic(_byteswap_ulong)
#pragma intrinsic(_byteswap_uint64)
#define bswap_uint64 _byteswap_uint64
#define bswap_uint32 _byteswap_ulong
#define bswap_uint16 _byteswap_ushort
#elif defined (__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)))
#define bswap_uint64 __builtin_bswap64
#define bswap_uint32 __builtin_bswap32
#define bswap_uint16 __builtin_bswap16
#endif
#define read_swap16(p) bswap_uint16(*(const uint16_t*)(const uint8_t*)(p))
#define read_swap32(p) bswap_uint32(*(const uint32_t*)(const uint8_t*)(p))
#define read_swap64(p) bswap_uint64(*(const uint64_t*)(const uint8_t*)(p))
#define write_swap16(p,v) (*(uint16_t*)(void*)(p)) = bswap_uint16(v)
#define write_swap32(p,v) (*(uint32_t*)(void*)(p)) = bswap_uint32(v)
#define write_swap64(p,v) (*(uint32_t*)(void*)(p)) = bswap_uint64(v)
/*
* Nibbled from https://github.com/hanji/popcnt/blob/master/populationcount.cpp
* Since MSVC x86_32 does not have intrinsic popcount64 and I don't have all day
*/
static __inline int popcnt64(register uint64_t u)
{
u = (u & 0x5555555555555555) + ((u >> 1) & 0x5555555555555555);
u = (u & 0x3333333333333333) + ((u >> 2) & 0x3333333333333333);
u = (u & 0x0f0f0f0f0f0f0f0f) + ((u >> 4) & 0x0f0f0f0f0f0f0f0f);
u = (u & 0x00ff00ff00ff00ff) + ((u >> 8) & 0x00ff00ff00ff00ff);
u = (u & 0x0000ffff0000ffff) + ((u >> 16) & 0x0000ffff0000ffff);
u = (u & 0x00000000ffffffff) + ((u >> 32) & 0x00000000ffffffff);
return (int)u;
}
static __inline void *_reallocf(void *ptr, size_t size) {
void *ret = realloc(ptr, size);
if (!ret)
free(ptr);
return ret;
}
/* Why oh why does Microsoft have to make everybody suffer with their braindead use of Unicode? */
#define _RT_ICON MAKEINTRESOURCEA(3)
#define _RT_DIALOG MAKEINTRESOURCEA(5)
#define _RT_RCDATA MAKEINTRESOURCEA(10)
#define _RT_GROUP_ICON MAKEINTRESOURCEA((ULONG_PTR)(MAKEINTRESOURCEA(3) + 11))
/* MinGW doesn't know these */
#ifndef WM_CLIENTSHUTDOWN
#define WM_CLIENTSHUTDOWN 0x3B
#endif
#ifndef WM_COPYGLOBALDATA
#define WM_COPYGLOBALDATA 0x49
#endif
/* The following is used for native ISO mounting in Windows 8 or later */
#define VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT \
{ 0xEC984AECL, 0xA0F9, 0x47e9, { 0x90, 0x1F, 0x71, 0x41, 0x5A, 0x66, 0x34, 0x5B } }