mirror/obs-studio
1
0
Fork 0
mirror of https://github.com/obsproject/obs-studio.git synced 2026-04-29 02:43:51 -04:00
Code Issues Packages Projects Releases Wiki Activity

Revert "libobs: Improve util_mul_div64 outside MSVC"

Browse Source 
This reverts commit c977417747.

Reverted due to a regression.
This commit is contained in:
Ryan Foster
2023-04-16 20:28:26 -04:00
parent c977417747
commit ba263ee4fa
1 changed files with 1 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
libobs/util/util_uint64.h
View File

@@ -22,17 +22,7 @@
static inline uint64_t util_mul_div64(uint64_t num, uint64_t mul, uint64_t div)
{
#if !defined(_MSC_VER)
#if defined(__x86_64__)
uint64_t rax, rdx;
__asm__("mulq %2" : "=a"(rax), "=d"(rdx) : "r"(num), "a"(mul));
__asm__("divq %1" : "=a"(rax) : "r"(div), "a"(rax), "d"(rdx));
return rax;
#else
return (uint64_t)(((__uint128_t)num * (__uint128_t)mul) /
(__uint128_t)div);
#endif
#elif defined(_M_X64) && (_MSC_VER >= 1920)
#if defined(_MSC_VER) && defined(_M_X64) && (_MSC_VER >= 1920)
unsigned __int64 high;
const unsigned __int64 low = _umul128(num, mul, &high);
unsigned __int64 rem;