(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_HINT_CPU_FEATURE_MASK

A variable that limits what CPU features are available.

Header File

Defined in <SDL3/SDL_hints.h>

Syntax

#define SDL_HINT_CPU_FEATURE_MASK "SDL_CPU_FEATURE_MASK"

Remarks

By default, SDL marks all features the current CPU supports as available. This hint allows to limit these to a subset.

When the hint is unset, or empty, SDL will enable all detected CPU features.

The variable can be set to a comma separated list containing the following items:

• "all"
• "altivec"
• "sse"
• "sse2"
• "sse3"
• "sse41"
• "sse42"
• "avx"
• "avx2"
• "avx512f"
• "arm-simd"
• "neon"
• "lsx"
• "lasx"

The items can be prefixed by '+'/'-' to add/remove features.

Version

This hint is available since SDL 3.1.3.

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CategoryAPI, CategoryAPIMacro, CategoryHints

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