sleepy-day/dlib
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

add SDL3 overrides

Browse Source
This commit is contained in:
Matthew 2026-06-12 17:06:02 +10:00
parent 6126144f7c
commit f3640ffa5f
3 changed files with 6164 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
external/SDL3/SDL_bits.h vendored
View File

@ -65,26 +65,6 @@ extern __inline int _SDL_bsr_watcom(Uint32);
*/ */
SDL_FORCE_INLINE int SDL_MostSignificantBitIndex32(Uint32 x) SDL_FORCE_INLINE int SDL_MostSignificantBitIndex32(Uint32 x)
{ {
#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) && !defined(__importc__)
/* Count Leading Zeroes builtin in GCC.
* http://gcc.gnu.org/onlinedocs/gcc-4.3.4/gcc/Other-Builtins.html
*/
if (x == 0) {
return -1;
}
return 31 - __builtin_clz(x);
#elif defined(__WATCOMC__) && defined(__386__)
if (x == 0) {
return -1;
}
return _SDL_bsr_watcom(x);
#elif defined(_MSC_VER) && _MSC_VER >= 1400
unsigned long index;
if (_BitScanReverse(&index, x)) {
return (int)index;
}
return -1;
#else
/* Based off of Bit Twiddling Hacks by Sean Eron Anderson /* Based off of Bit Twiddling Hacks by Sean Eron Anderson
* <seander@cs.stanford.edu>, released in the public domain. * <seander@cs.stanford.edu>, released in the public domain.
* http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog * http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog
@ -109,7 +89,6 @@ SDL_FORCE_INLINE int SDL_MostSignificantBitIndex32(Uint32 x)
} }
return msbIndex; return msbIndex;
#endif
} }
/** /**

6161
external/SDL3/SDL_stdinc.h vendored Normal file
View File

File diff suppressed because it is too large Load Diff