skip GammaRamp calls on win7

megai2 · Sep 7, 2019 · 4a90080 · 4a90080
1 parent b5edeed
commit 4a90080
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/d912pxy/d912pxy_swapchain.cpp b/d912pxy/d912pxy_swapchain.cpp
@@ -51,9 +51,10 @@ d912pxy_swapchain::d912pxy_swapchain(int index, D3DPRESENT_PARAMETERS * in_pp) :
 	backBufferSurface = NULL;
 	swapCheckValue = D3D_OK;
 	dxgiNoWaitFlag = DXGI_PRESENT_DO_NOT_WAIT;
-	dxgiOWndProc = NULL;
+	dxgiOWndProc = NULL;	
 	errorCount = 0;
 
+
 	if (index == 0)
 	{
 		baseSwapChain = this;
@@ -252,6 +253,9 @@ void d912pxy_swapchain::SetGammaRamp(DWORD Flags, CONST D3DGAMMARAMP* pRamp)
 	ComPtr<IDXGISwapChain4> d12sw = dxgiSwapchain;
 	ComPtr<IDXGIOutput> odata;
 
+	if (!d12sw)
+		return;
+
 	if (FAILED(d12sw->GetContainingOutput(&odata)))
 		return;
 
@@ -315,6 +319,9 @@ void d912pxy_swapchain::GetGammaRamp(D3DGAMMARAMP* pRamp)
 	ComPtr<IDXGISwapChain4> d12sw = dxgiSwapchain;
 	ComPtr<IDXGIOutput> odata;
 
+	if (!d12sw)
+		return;
+
 	if (FAILED(d12sw->GetContainingOutput(&odata)))
 		return;