Provide DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING for CanvasSwapChain when c…

…reating or resizing for supporting VRR
microsoft · Oct 16, 2023 · 0261fbd · 0261fbd
1 parent 52ed3c6
commit 0261fbd
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Showing 2 changed files with 2 additions and 1 deletion.
diff --git a/winrt/lib/drawing/CanvasDevice.cpp b/winrt/lib/drawing/CanvasDevice.cpp
@@ -1330,6 +1330,7 @@ namespace ABI { namespace Microsoft { namespace Graphics { namespace Canvas
         swapChainDesc.Scaling = DXGI_SCALING_STRETCH;
         swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
         swapChainDesc.AlphaMode = ToDxgiAlphaMode(alphaMode);
+        swapChainDesc.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING;
 
         ComPtr<IDXGISwapChain1> swapChain;
         ThrowIfCreateSurfaceFailed(

diff --git a/winrt/lib/drawing/CanvasSwapChain.cpp b/winrt/lib/drawing/CanvasSwapChain.cpp
@@ -561,7 +561,7 @@ namespace ABI { namespace Microsoft { namespace Graphics { namespace Canvas
             widthInPixels,
             heightInPixels,
             static_cast<DXGI_FORMAT>(newFormat), 
-            0));
+            DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING));
 
         if (!m_isTransformMatrixSupported)
         {