![]() ![]() WARP devices only support feature level 11.0.However, the runtime still allows them to be called, and performs validation that they are being used correctly on non-shared resources. IDXGIDevice2:: OfferResources and IDXGIDevice2:: ReclaimResources are not supported on the Platform Update for Windows 7.Stereo is not supported on the Platform Update for Windows 7 so this method is equivalent to IDXGIOutput:: FindClosestMatchingMode as DXGI_MODE_DESC1.Stereo will always be FALSE. IDXGIOutput1:: GetDisplayModeList1 and IDXGIOutput1:: FindClosestMatchingMode1 were added to facilitate stereo display modes.IDXGIDispla圜ontrol:: IsStereoEnabled, IDXGIFactory2:: IsWindowedStereoEnabled, and IDXGISwapChain1:: IsTemporaryMonoSupported all return FALSE.Its value is still stored and can be retrieved, but it has no effect. IDXGISwapChain1:: SetBackgroundColor is only useful when set on a swapchain using DXGI_SCALING_NONE.DXGI_SCALING_NONE is not supported on Windows 7 with the platform update and causes CreateSwapChainForHwnd to return DXGI_ERROR_INVALID_CALL when called. IDXGIFactory2:: CreateSwapChainForHwnd takes a DXGI_SWAP_CHAIN_DESC1 structure, which has a field for Scaling.These APIs have behavior differences, as noted: ID3D11Device1:: OpenSharedResourceByName.IDXGIFactory2:: GetSharedResourceAdapterLuid.IDXGIFactory2:: UnregisterOcclusionStatus.IDXGIFactory2:: RegisterOcclusionStatusEvent. ![]() IDXGIFactory2:: RegisterStereoStatusEvent.IDXGIFactory2:: RegisterStereoStatusWindow.IDXGIFactory2:: CreateSwapChainForComposition.IDXGIFactory2:: CreateSwapChainForCoreWindow.Specifically, the following APIs will return DXGI_ERROR_UNSUPPORTED, DXGI_ERROR_INVALID_CALL, E_NOTIMPL, or E_INVALIDARG: These classes of features are unavailable on Platform Update for Windows 7: Make sure your applications targeting Windows 7 with the platform update have a fallback in place when the desired functionality is unavailable. Some new methods introduced in DGXI 1.2 are not fully supported with the Platform Update for Windows 7.You can test for the availability of these functions by calling them directly and checking for an error code. Only use features available at your target feature levels, as described in the feature level reference. On Windows 7 with the platform update, D3D11CreateDevice always returns a feature level of 11.0 or lower, except for with a reference device that can be used to test an 11.1 code path on Windows 7. Windows 7 with the platform update supports only the WDDM 1.1 driver model and therefore, feature level 11.1 hardware support is not available (through the platform update). The Windows 8 WDDM 1.2 driver model supports a new generation of hardware, exposed through D3D feature level 11.1. See D3D11_FEATURE_DATA_D3D11_OPTIONS for more info about which features are emulated. This emulation is available on Windows 7 with the platform update. Several features, such as PSSetConstantBuffers1 with constant buffer offsets, require new drivers for feature level 10 and higher, but are actually emulated for feature level 9. Since there is no guarantee that these optional features are available, make sure your applications have appropriate fallback behaviors in the event that the desired functionality is unavailable. These updated driver versions, as well as most optional features exposed through CheckFeatureSupport, are unavailable on Windows 7. When reading the Direct3D11.1 documentation, understand that new drivers means WDDM 1.2 drivers. Windows 8 introduced the WDDM 1.2 driver model, which provided improvements across the associated API surface for all feature levels. Before using Direct3D11.1 on Windows 7, be familiar with these specifics: The features of these graphics components are tied directly to the graphics kernel components, graphics drivers, and graphics hardware. See these topics for info about Direct3D and DXGI with the platform update:Īfter the platform update has been installed, the interfaces introduced in Direct3D11.1 and DXGI 1.2 will be available with partial functionality. What’s New for WIC in Windows 8 (Windows).What's new in DirectWrite for Windows 8 (Windows).What's new in Direct2D for Windows 8 (Windows).See these topics for info about Direct2D, DirectWrite, and WIC with the platform update: Direct2D 1.1 (including Direct2D Effects)Īnd, for example, this component is not available:.For example, these Windows 8 components become available with full functionality: When installed on Windows 7, the Platform Update for Windows 7 updates Windows 7 with functionality available in Windows 8. This topic describes improvements to components of the Windows 7 graphics stack that become available through the Platform Update for Windows 7.
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