[PATCH 4/6] d2d1: Query ID3D10Multithread interface on creation.

[Rémi Bernon]

Signed-off-by: Rémi Bernon <rbernon at codeweavers.com>
---
 dlls/d2d1/d2d1_private.h | 1 +
 dlls/d2d1/device.c       | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/dlls/d2d1/d2d1_private.h b/dlls/d2d1/d2d1_private.h
index 7211029d920..153113cafa9 100644
--- a/dlls/d2d1/d2d1_private.h
+++ b/dlls/d2d1/d2d1_private.h
@@ -540,6 +540,7 @@ struct d2d_device
     ID2D1Factory1 *factory;
     IDXGIDevice *dxgi_device;
     ID3D10Device *d3d10_device;
+    ID3D10Multithread *d3d10_mt;
 };
 
 void d2d_device_init(struct d2d_device *device, ID2D1Factory1 *factory, IDXGIDevice *dxgi_device) DECLSPEC_HIDDEN;
diff --git a/dlls/d2d1/device.c b/dlls/d2d1/device.c
index 3c33fba0e56..acbcab5caeb 100644
--- a/dlls/d2d1/device.c
+++ b/dlls/d2d1/device.c
@@ -4126,6 +4126,7 @@ static ULONG WINAPI d2d_device_Release(ID2D1Device *iface)
 
     if (!refcount)
     {
+        if (device->d3d10_mt) ID3D10Multithread_Release(device->d3d10_mt);
         if (device->d3d10_device) ID3D10Device_Release(device->d3d10_device);
         IDXGIDevice_Release(device->dxgi_device);
         ID2D1Factory1_Release(device->factory);
@@ -4233,6 +4234,13 @@ void d2d_device_init(struct d2d_device *device, ID2D1Factory1 *iface, IDXGIDevic
     device->dxgi_device = dxgi_device;
     IDXGIDevice_AddRef(device->dxgi_device);
 
+    if (FAILED(hr = IDXGIDevice_QueryInterface(device->dxgi_device,
+            &IID_ID3D10Multithread, (void **)&device->d3d10_mt)))
+    {
+        WARN("Failed to get ID3D10Multithread interface, hr %#x.\n", hr);
+        device->d3d10_mt = NULL;
+    }
+
     if (FAILED(hr = IDXGIDevice_QueryInterface(device->dxgi_device,
             &IID_ID3D10Device, (void **)&device->d3d10_device)))
     {
-- 
2.30.0