NAME

       SDL_GetSIMDAlignment - Report the alignment this system needs for SIMD allocations.

HEADER FILE

       Defined in SDL3/SDL_cpuinfo.h

SYNOPSIS

       #include "SDL3/SDL.h"

       size_t SDL_GetSIMDAlignment(void);

DESCRIPTION

       This  will  return  the  minimum number of bytes to which a pointer must be aligned to be compatible with
       SIMD instructions on the current machine. For example, if the machine supports SSE only, it  will  return
       16, but if it supports AVX-512F, it'll return 64 (etc). This only reports values for instruction sets SDL
       knows about, so if your SDL build doesn't have

       SDL_HasAVX512F  (),  then  it  might  return  16  for  the SSE support it sees and not 64 for the AVX-512
       instructions that exist but SDL doesn't know about. Plan accordingly.

RETURN VALUE

       Returns the alignment in bytes needed for available, known SIMD instructions.

THREAD SAFETY

       It is safe to call this function from any thread.

AVAILABILITY

       This function is available since SDL 3.2.0.

SEE ALSO

       •(3), SDL_aligned_alloc(3), •(3), SDL_aligned_free(3)

Simple Directmedia Layer                            SDL 3.2.8                            SDL_GetSIMDAlignment(3)