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Add Windows version check before trying to even check for Win10-exclusive D3D features

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Should fix #20877
This commit is contained in:
Henrik Rydgård committed 2025-10-16 11:20:21 +02:00
1 parent c79d43db6b
commit f037b1ce13
1 file changed
+13 -9
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Windows/GPU/D3D11Context.cpp
+13 -9
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@@ -12,6 +12,7 @@
#include "Common/System/Display.h"
#include "Common/Data/Encoding/Utf8.h"
#include "Common/Data/Text/I18n.h"
#include "Common/OSVersion.h"
#include "Core/Config.h"
#include "Core/ConfigValues.h"
@@ -187,16 +188,19 @@ bool D3D11Context::Init(HINSTANCE hInst, HWND wnd, std::string *error_message) {
swapChainDesc_.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
#ifndef __LIBRETRO__ // their build server uses an old SDK
ComPtr<IDXGIFactory5> dxgiFactory5;
hr = dxgiFactory.As(&dxgiFactory5);
if (SUCCEEDED(hr)) {
swapChainDesc_.BufferCount = 2;
swapChainDesc_.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
// Extra guard against Win7 drivers that pretend to support DXGIFactory5 but don't really.
if (IsWin10OrHigher()) {
ComPtr<IDXGIFactory5> dxgiFactory5;
hr = dxgiFactory.As(&dxgiFactory5);
if (SUCCEEDED(hr)) {
swapChainDesc_.BufferCount = 2;
swapChainDesc_.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
BOOL allowTearing = FALSE;
hr = dxgiFactory5->CheckFeatureSupport(DXGI_FEATURE_PRESENT_ALLOW_TEARING, &allowTearing, sizeof(allowTearing));
if (SUCCEEDED(hr) && allowTearing) {
swapChainDesc_.Flags |= DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING;
BOOL allowTearing = FALSE;
hr = dxgiFactory5->CheckFeatureSupport(DXGI_FEATURE_PRESENT_ALLOW_TEARING, &allowTearing, sizeof(allowTearing));
if (SUCCEEDED(hr) && allowTearing) {
swapChainDesc_.Flags |= DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING;
}
}
}
#endif