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Common: Fix vector blend32() and dot() on SSE2

This commit is contained in:
Stenzek 2025-01-01 22:02:34 +10:00
parent d0e1efb1fd
commit 22202f1607
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1 changed files with 7 additions and 2 deletions
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9
src/common/gsvector_sse.h
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@ -2019,13 +2019,13 @@ public:
ALWAYS_INLINE GSVector4 hsub(const GSVector4& v) const { return GSVector4(_mm_hsub_ps(m, v.m)); }
ALWAYS_INLINE float dot(const GSVector4& v) const
NEVER_INLINE float dot(const GSVector4& v) const
{
#ifdef CPU_ARCH_SSE41
return _mm_cvtss_f32(_mm_dp_ps(m, v.m, 0xf1));
#else
__m128 tmp = _mm_mul_ps(m, v.m);
tmp = _mm_add_ps(tmp, _mm_unpackhi_ps(tmp, tmp)); // (x+z, y+w, ..., ...)
tmp = _mm_add_ps(tmp, _mm_movehl_ps(tmp, tmp)); // (x+z, y+w, ..., ...)
tmp = _mm_add_ss(tmp, _mm_shuffle_ps(tmp, tmp, _MM_SHUFFLE(3, 2, 1, 1)));
return _mm_cvtss_f32(tmp);
#endif
@ -2057,7 +2057,12 @@ public:
ALWAYS_INLINE GSVector4 blend32(const GSVector4& v, const GSVector4& mask) const
{
#ifdef CPU_ARCH_SSE41
return GSVector4(_mm_blendv_ps(m, v, mask));
#else
// NOTE: Assumes the entire lane is set with 1s or 0s.
return (v & mask) | andnot(mask);
#endif
}
ALWAYS_INLINE GSVector4 upl(const GSVector4& v) const { return GSVector4(_mm_unpacklo_ps(m, v)); }