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libretro, update libretro-common

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This commit is contained in:
kub 2022-02-09 18:42:04 +00:00
parent 8717984c12
commit b4e7cd1b51
39 changed files with 1767 additions and 738 deletions
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42
platform/libretro/libretro-common/include/compat/intrinsics.h
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@ -1,4 +1,4 @@
/* Copyright (C) 2010-2018 The RetroArch team
/* Copyright (C) 2010-2020 The RetroArch team
*
* ---------------------------------------------------------------------------------------
* The following license statement only applies to this file (intrinsics.h).
@ -41,7 +41,7 @@ RETRO_BEGIN_DECLS
/* Count Leading Zero, unsigned 16bit input value */
static INLINE unsigned compat_clz_u16(uint16_t val)
{
#if defined(__GNUC__) && !defined(PS2)
#if defined(__GNUC__)
return __builtin_clz(val << 16 | 0x8000);
#else
unsigned ret = 0;
@ -63,20 +63,34 @@ static INLINE int compat_ctz(unsigned x)
return __builtin_ctz(x);
#elif _MSC_VER >= 1400 && !defined(_XBOX) && !defined(__WINRT__)
unsigned long r = 0;
_BitScanReverse((unsigned long*)&r, x);
_BitScanForward((unsigned long*)&r, x);
return (int)r;
#else
/* Only checks at nibble granularity,
* because that's what we need. */
if (x & 0x000f)
return 0;
if (x & 0x00f0)
return 4;
if (x & 0x0f00)
return 8;
if (x & 0xf000)
return 12;
return 16;
int count = 0;
if (!(x & 0xffff))
{
x >>= 16;
count |= 16;
}
if (!(x & 0xff))
{
x >>= 8;
count |= 8;
}
if (!(x & 0xf))
{
x >>= 4;
count |= 4;
}
if (!(x & 0x3))
{
x >>= 2;
count |= 2;
}
if (!(x & 0x1))
count |= 1;
return count;
#endif
}