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add #include <immintrin.h> fallback

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This commit is contained in:
Evan Pezent 2021-09-07 20:20:12 -07:00
parent 3e96fd7c02
commit 5ed9e78676
1 changed files with 5 additions and 2 deletions
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7
implot_items.cpp
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@ -51,9 +51,12 @@
#endif #endif
#if defined __SSE__ || defined __x86_64__ || defined _M_X64 #if defined __SSE__ || defined __x86_64__ || defined _M_X64
static IMPLOT_INLINE float ImInvSqrt(float x) { return _mm_cvtss_f32(_mm_rsqrt_ss(_mm_set_ss(x))); } #ifndef IMGUI_ENABLE_SSE
#include <immintrin.h>
#endif
static IMPLOT_INLINE float ImInvSqrt(float x) { return _mm_cvtss_f32(_mm_rsqrt_ss(_mm_set_ss(x))); }
#else #else
static IMPLOT_INLINE float ImInvSqrt(float x) { return 1.0f / sqrtf(x); } static IMPLOT_INLINE float ImInvSqrt(float x) { return 1.0f / sqrtf(x); }
#endif #endif
#define IMPLOT_NORMALIZE2F_OVER_ZERO(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImInvSqrt(d2); VX *= inv_len; VY *= inv_len; } } while (0) #define IMPLOT_NORMALIZE2F_OVER_ZERO(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImInvSqrt(d2); VX *= inv_len; VY *= inv_len; } } while (0)