From c93f2b980eb6ae8d7539122d8351a7bfda7bbf0e Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Wed, 13 Jun 2018 14:29:58 +0200
Subject: [PATCH] [d3d11] Report correct timer frequency for TIMESTAMP_DISJOINT
 queries

---
 src/d3d11/d3d11_query.cpp | 12 ++++++++++--
 src/d3d11/d3d11_query.h   |  2 ++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/d3d11/d3d11_query.cpp b/src/d3d11/d3d11_query.cpp
index 9a51e3bf2..d872acddd 100644
--- a/src/d3d11/d3d11_query.cpp
+++ b/src/d3d11/d3d11_query.cpp
@@ -208,9 +208,8 @@ namespace dxvk {
           return S_OK;
         
         case D3D11_QUERY_TIMESTAMP_DISJOINT: {
-          // FIXME return correct frequency
           auto data = static_cast<D3D11_QUERY_DATA_TIMESTAMP_DISJOINT*>(pData);
-          data->Frequency = 1000;
+          data->Frequency = GetTimestampQueryFrequency();
           data->Disjoint = FALSE;
         } return S_OK;
         
@@ -236,4 +235,13 @@ namespace dxvk {
     }
   }
   
+  
+  UINT64 D3D11Query::GetTimestampQueryFrequency() const {
+    Rc<DxvkDevice>  device  = m_device->GetDXVKDevice();
+    Rc<DxvkAdapter> adapter = device->adapter();
+
+    VkPhysicalDeviceLimits limits = adapter->deviceProperties().limits;
+    return uint64_t(1'000'000'000.0f / limits.timestampPeriod);
+  }
+  
 }
diff --git a/src/d3d11/d3d11_query.h b/src/d3d11/d3d11_query.h
index 7d4d48e6c..a9aa53603 100644
--- a/src/d3d11/d3d11_query.h
+++ b/src/d3d11/d3d11_query.h
@@ -52,6 +52,8 @@ namespace dxvk {
     Rc<DxvkEvent> m_event = nullptr;
     
     uint32_t m_revision = 0;
+
+    UINT64 GetTimestampQueryFrequency() const;
     
   };