From 68a7ad81e10a5d3b63b53e498077c2a642389424 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Thu, 7 Jun 2018 15:35:24 +0200
Subject: [PATCH] [d3d11] Enable 64-bit math feature

We still have DMovc to implement, but it doesn't look like this
instruction is required as of now.
---
 src/d3d11/d3d11_device.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/d3d11/d3d11_device.cpp b/src/d3d11/d3d11_device.cpp
index 0b9aa6e2..db8553ea 100644
--- a/src/d3d11/d3d11_device.cpp
+++ b/src/d3d11/d3d11_device.cpp
@@ -1546,8 +1546,10 @@ namespace dxvk {
         if (FeatureSupportDataSize != sizeof(D3D11_FEATURE_DATA_DOUBLES))
           return E_INVALIDARG;
         
+        const VkPhysicalDeviceFeatures& features = m_dxvkDevice->features();
+
         auto info = static_cast<D3D11_FEATURE_DATA_DOUBLES*>(pFeatureSupportData);
-        info->DoublePrecisionFloatShaderOps = FALSE;
+        info->DoublePrecisionFloatShaderOps = features.shaderFloat64 && features.shaderInt64;
       } return S_OK;
       
       case D3D11_FEATURE_FORMAT_SUPPORT: {