From 2102bffee22d9a8619830f0a8592d9f6cbd4e4d4 Mon Sep 17 00:00:00 2001
From: Anthony Miles <a.miles.nz@gmail.com>
Date: Mon, 2 Dec 2019 21:09:11 +1300
Subject: [PATCH] Ensure dp3 and dph use float3 dot products

---
 src/core/hle/D3D8/Direct3D9/Xb.hlsl | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/core/hle/D3D8/Direct3D9/Xb.hlsl b/src/core/hle/D3D8/Direct3D9/Xb.hlsl
index 0b16ec9b1..64b276554 100644
--- a/src/core/hle/D3D8/Direct3D9/Xb.hlsl
+++ b/src/core/hle/D3D8/Direct3D9/Xb.hlsl
@@ -40,8 +40,16 @@ int toXboxIndex(float src0) {
 	return floor(src0 + 0.0001); // TODO test
 }
 
+float x_dp4(float4 src0, float4 src1) {
+	return dot(src0, src1);
+}
+
+float x_dp3(float3 src0, float3 src1) {
+	return dot(src0, src1);
+}
+
 float x_dph(float4 src0, float4 src1) {
-	return dot(src0, src1) + src1.w;
+	return x_dp3(src0, src1) + src1.w;
 }
 
 float4 x_sge(float4 src0, float4 src1) {