Emulation/ppsspp
1
0
Fork 0
mirror of https://github.com/hrydgard/ppsspp.git synced 2025-04-02 11:01:50 -04:00
Code Issues Projects Releases Packages Wiki Activity

Revert Dot33 on 32-bit x86 only. See #17584

Browse source
This commit is contained in:
Henrik Rydgård 2023-06-16 23:43:15 +02:00
parent 9f14cfb54e
commit 5b4fa06b00
1 changed files with 4 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
GPU/Software/Lighting.cpp
View file

@ -256,7 +256,8 @@ static inline void LightColorSum(Vec4<int> &sum, const Vec4<int> &src) {
}
static inline float Dot33(const Vec3f &a, const Vec3f &b) {
#if defined(_M_SSE)
// NOTE: We can't guarantee aligned stack/parameter on 32-bit x86, so we avoid this path there.
#if defined(_M_SSE) && !PPSSPP_ARCH(X86)
__m128 v = _mm_mul_ps(a.vec, b.vec); // [X, Y, Z, W]
__m128 shuf = _mm_shuffle_ps(v, v, _MM_SHUFFLE(3, 2, 0, 1)); // [Y, X, Z, W]
__m128 sums = _mm_add_ps(v, shuf); // [X + Y, X + Y, Z + Z, W + W]
@ -267,8 +268,9 @@ static inline float Dot33(const Vec3f &a, const Vec3f &b) {
float32x2_t add1 = vget_low_f32(vpaddq_f32(multipled, multipled));
float32x2_t add2 = vpadd_f32(add1, add1);
return vget_lane_f32(add2, 0);
#endif
#else
return Dot(a, b);
#endif
}
template <bool useSSE4>