This patch implements the IDirect3DSwapChain9Ex interface as an extension of IDirect3DSwapChain9 and thus fixes bug 34252 - "Silverlight accelerated graphics cause a D3D critical section lockup" since Silverlight does no longer try to create a Direct3D context in an endless loop. The functions d3d9_swapchain_GetLastPresentCount and d3d9_swapchain_GetPresentStatistics are just stubs so far. --- dlls/d3d9/swapchain.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++- include/d3d9.h | 14 +++++++++- include/d3d9types.h | 8 ++++++ 3 files changed, 91 insertions(+), 2 deletions(-) @@ -34,7 +34,7 @@ static HRESULT WINAPI d3d9_swapchain_QueryInterface(IDirect3DSwapChain9 *iface, { TRACE("iface %p, riid %s, out %p.\n", iface, debugstr_guid(riid), out); - if (IsEqualGUID(riid, &IID_IDirect3DSwapChain9) + if (IsEqualGUID(riid, &IID_IDirect3DSwapChain9) || IsEqualGUID(riid, &IID_IDirect3DSwapChain9Ex) || IsEqualGUID(riid, &IID_IUnknown)) { IDirect3DSwapChain9_AddRef(iface); @@ -221,12 +221,76 @@ static HRESULT WINAPI d3d9_swapchain_GetPresentParameters(IDirect3DSwapChain9 *i return D3D_OK; }

/***************************************************************************** - * IDirect3DSwapChain9 interface + * IDirect3DSwapChain9(Ex) interface */ #define INTERFACE IDirect3DSwapChain9 DECLARE_INTERFACE_(IDirect3DSwapChain9,IUnknown) @@ -405,6 +405,10 @@ DECLARE_INTERFACE_(IDirect3DSwapChain9,IUnknown) STDMETHOD(GetDisplayMode)(THIS_ D3DDISPLAYMODE* pMode) PURE; STDMETHOD(GetDevice)(THIS_ struct IDirect3DDevice9** ppDevice) PURE; STDMETHOD(GetPresentParameters)(THIS_ D3DPRESENT_PARAMETERS* pPresentationParameters) PURE; + /*** IDirect3DSwapChain9Ex methods ***/ + STDMETHOD(GetLastPresentCount)(THIS_ UINT* pLastPresentCount) PURE; + STDMETHOD(GetPresentStats)(THIS_ D3DPRESENTSTATS* pPresentationStatistics) PURE; + STDMETHOD(GetDisplayModeEx)(THIS_ D3DDISPLAYMODEEX* pMode,D3DDISPLAYROTATION* pRotation) PURE; }; #undef INTERFACE