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dxgi: Avoid division by zero. 

Based on patch by Eduard - Gabriel Munteanu.
This commit is contained in:
Ričardas Barkauskas 2012-09-24 21:01:44 +03:00 committed by Alexandre Julliard
parent d9ce33bfb0
commit 342ce213e6
1 changed files with 9 additions and 1 deletions
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10
dlls/dxgi/factory.c
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@ -161,6 +161,14 @@ static HRESULT STDMETHODCALLTYPE dxgi_factory_GetWindowAssociation(IWineDXGIFact
return E_NOTIMPL;
}
static UINT dxgi_rational_to_uint(const DXGI_RATIONAL *rational)
{
if (rational->Denominator)
return rational->Numerator / rational->Denominator;
else
return rational->Numerator;
}
static HRESULT STDMETHODCALLTYPE dxgi_factory_CreateSwapChain(IWineDXGIFactory *iface,
IUnknown *device, DXGI_SWAP_CHAIN_DESC *desc, IDXGISwapChain **swapchain)
{
@ -218,7 +226,7 @@ static HRESULT STDMETHODCALLTYPE dxgi_factory_CreateSwapChain(IWineDXGIFactory *
wined3d_desc.enable_auto_depth_stencil = FALSE;
wined3d_desc.auto_depth_stencil_format = 0;
wined3d_desc.flags = 0; /* WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL? */
wined3d_desc.refresh_rate = desc->BufferDesc.RefreshRate.Numerator / desc->BufferDesc.RefreshRate.Denominator;
wined3d_desc.refresh_rate = dxgi_rational_to_uint(&desc->BufferDesc.RefreshRate);
wined3d_desc.swap_interval = WINED3DPRESENT_INTERVAL_DEFAULT;
hr = wined3d_device_init_3d(wined3d_device, &wined3d_desc);