From fe0b3dbd01bb8b197d9c79f6389cb2e0c3afa610 Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Sun, 9 Jan 2022 11:08:46 -0800
Subject: [PATCH] samplerjit: Fix alpha for 565 in linear lookup.

---
 GPU/Software/SamplerX86.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/GPU/Software/SamplerX86.cpp b/GPU/Software/SamplerX86.cpp
index 9c34bd7b34..9ceb2f68e6 100644
--- a/GPU/Software/SamplerX86.cpp
+++ b/GPU/Software/SamplerX86.cpp
@@ -3087,9 +3087,16 @@ bool SamplerJitCache::Jit_Decode5650Quad(const SamplerID &id, Rasterizer::RegCac
 	// Now shift and mask temp2 for swizzle.
 	PSRLD(temp2Reg, 6);
 	PAND(temp2Reg, M(const5650Swizzle_));
-	// And then OR that in too.  We're done.
+	// And then OR that in too.  Only alpha left now.
 	POR(quadReg, R(temp2Reg));
 
+	if (id.useTextureAlpha) {
+		// Just put a fixed FF in.  Maybe we could even avoid this and act like it's FF later...
+		PCMPEQD(temp2Reg, R(temp2Reg));
+		PSLLD(temp2Reg, 24);
+		POR(quadReg, R(temp2Reg));
+	}
+
 	regCache_.Release(temp1Reg, RegCache::VEC_TEMP1);
 	regCache_.Release(temp2Reg, RegCache::VEC_TEMP2);
 	return true;