From d98e5bfc97843948e4e1a0a078989a380c9a51ef Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Mon, 3 Jan 2022 06:43:48 -0800
Subject: [PATCH] softgpu: Improve usage of SSE for lighting.

Gives about a 2% improvement in many places.
---
 GPU/Software/Lighting.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/GPU/Software/Lighting.cpp b/GPU/Software/Lighting.cpp
index 5c60bd66dc..d4d7a020ee 100644
--- a/GPU/Software/Lighting.cpp
+++ b/GPU/Software/Lighting.cpp
@@ -15,6 +15,7 @@
 // Official git repository and contact information can be found at
 // https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
 
+#include "ppsspp_config.h"
 #include "Common/CPUDetect.h"
 #include "GPU/GPUState.h"
 #include "GPU/Software/Lighting.h"
@@ -22,7 +23,13 @@
 namespace Lighting {
 
 static inline Vec3f GetLightVec(u32 lparams[12], int light) {
+#if defined(_M_SSE) && !PPSSPP_ARCH(X86)
+	__m128i values = _mm_loadu_si128((__m128i *)&lparams[3 * light]);
+	__m128i from24 = _mm_slli_epi32(values, 8);
+	return _mm_castsi128_ps(from24);
+#else
 	return Vec3<float>(getFloat24(lparams[3 * light]), getFloat24(lparams[3 * light + 1]), getFloat24(lparams[3 * light + 2]));
+#endif
 }
 
 static inline float pspLightPow(float v, float e) {