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| author | Ben Wagner <bungeman@chromium.org> | 2021-08-26 16:12:22 -0400 |
|---|---|---|
| committer | Werner Lemberg <wl@gnu.org> | 2021-08-27 09:20:26 +0200 |
| commit | a842a0984b13b7a271d6b4693c96cd354a6b1b81 (patch) | |
| tree | 3534f5827738ab2183b5f9e094919d171b0ebf3e | |
| parent | 3785393d1a3c12fb1b4a3995cc0e953a58531cfe (diff) | |
| download | freetype2-a842a0984b13b7a271d6b4693c96cd354a6b1b81.tar.gz | |
[smooth] Detect SSE2 with MSVC for x86
MSVC does not set `__SSE2__`. Instead one must check whether `_M_IX86_FP` is
defined and greater than or equal to 2.
* src/smooth/ftgrays.c (FT_SSE2): New macro.
Use it where appropriate.
| -rw-r--r-- | src/smooth/ftgrays.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c index c550c3303..576dbb325 100644 --- a/src/smooth/ftgrays.c +++ b/src/smooth/ftgrays.c @@ -999,10 +999,17 @@ typedef ptrdiff_t FT_PtrDist; * * For other cases, using binary splits is actually slightly faster. */ -#if defined( __SSE2__ ) || \ - defined( __x86_64__ ) || \ +#if defined( __SSE2__ ) || \ + defined( __x86_64__ ) || \ + defined( _M_AMD64 ) || \ + ( defined( _M_IX86_FP ) && _M_IX86_FP >= 2 ) +# define FT_SSE2 1 +#else +# define FT_SSE2 0 +#endif + +#if FT_SSE2 || \ defined( __aarch64__ ) || \ - defined( _M_AMD64 ) || \ defined( _M_ARM64 ) # define BEZIER_USE_DDA 1 #else @@ -1022,7 +1029,7 @@ typedef ptrdiff_t FT_PtrDist; #if BEZIER_USE_DDA -#ifdef __SSE2__ +#if FT_SSE2 # include <emmintrin.h> #endif @@ -1135,7 +1142,7 @@ typedef ptrdiff_t FT_PtrDist; * = (B << (33 - N)) + (A << (32 - 2*N)) */ -#ifdef __SSE2__ +#if FT_SSE2 /* Experience shows that for small shift values, */ /* SSE2 is actually slower. */ if ( shift > 2 ) @@ -1192,7 +1199,7 @@ typedef ptrdiff_t FT_PtrDist; return; } -#endif /* __SSE2__ */ +#endif /* FT_SSE2 */ rx = LEFT_SHIFT( ax, 33 - 2 * shift ); ry = LEFT_SHIFT( ay, 33 - 2 * shift ); |