From e549c9303b72794bd75fb01b4d4d9cb0d33e53e1 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Fri, 12 Oct 2018 18:36:02 +0200
Subject: [PATCH] [d3d10] Respect D3D10_CREATE_DEVICE_SINGLETHREADED flag
May improve performance in games which do not need the locking behaviour.
---
src/d3d10/d3d10_device.cpp | 4 +++-
src/d3d10/d3d10_device.h | 6 +++++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/src/d3d10/d3d10_device.cpp b/src/d3d10/d3d10_device.cpp
index 3b0eda31..dfd0bdd0 100644
--- a/src/d3d10/d3d10_device.cpp
+++ b/src/d3d10/d3d10_device.cpp
@@ -9,7 +9,9 @@ namespace dxvk {
D3D11Device* pDevice,
D3D11ImmediateContext* pContext)
: m_device(pDevice), m_context(pContext) {
-
+ // Respecting the single-threaded flag may improve performance
+ UINT flags = pDevice->GetCreationFlags();
+ m_threadSafe = !(flags & D3D10_CREATE_DEVICE_SINGLETHREADED);
}
diff --git a/src/d3d10/d3d10_device.h b/src/d3d10/d3d10_device.h
index 5f49ca19..df9d50fd 100644
--- a/src/d3d10/d3d10_device.h
+++ b/src/d3d10/d3d10_device.h
@@ -474,7 +474,9 @@ namespace dxvk {
UINT* pHeight);
D3D10DeviceLock LockDevice() {
- return D3D10DeviceLock(m_mutex);
+ return m_threadSafe
+ ? D3D10DeviceLock(m_mutex)
+ : D3D10DeviceLock();
}
private:
@@ -483,6 +485,8 @@ namespace dxvk {
D3D11Device* m_device;
D3D11ImmediateContext* m_context;
+ bool m_threadSafe = true;
+
};
}
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