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stb_image: First-pass stbi__sse2_available for GCC

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Fabian Giesen 2014-12-18 07:52:44 -08:00
parent aabf2c5c49
commit c625d24197
1 changed files with 12 additions and 0 deletions
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stb_image.h
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@ -419,6 +419,18 @@ static int stbi__sse2_available()
#ifndef STBI_SIMD_ALIGN
#define STBI_SIMD_ALIGN(type, name) type name
static int stbi__sse2_available()
{
#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 // GCC 4.8 or later
// GCC 4.8+ has a nice way to do this
return __builtin_cpu_supports("sse2");
#else
// portable way to do this, preferably without using GCC inline ASM?
// just bail for now.
return 0;
#endif
}
#endif
///////////////////////////////////////////////