D3D11: Prevent DXGI hooking the Alt+Enter keystroke

When ANGLE is using D3D11 and not using DirectComposition, DXGI will hook the window's message loop and override Alt+Enter to trigger a transition to exclusive fullscreen mode. This disables that behaviour, since it's inconsistent between backends and, at least during my testing, the application did not even work correctly after the transition to fullscreen mode. This commit should be similar to the workarounds implemented in Qt and mpv to prevent this behaviour and will hopefully make those workarounds unnecessary. Only the DXGI_MWA_NO_ALT_ENTER flag is used, since the other flags didn't seem to have an effect and probably only matter in fullscreen mode. BUG=angleproject:1414 Change-Id: Icb70c2c1405225619dcb27c5ffc9472fddd1157b Reviewed-on: https://chromium-review.googlesource.com/352950Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

D3D11: Prevent DXGI hooking the Alt+Enter keystroke
cd9aa12a · James Ross-Gowan · Commit Bot · 989cac34 · cd9aa12a · cd9aa12a
Commit cd9aa12a authored Jun 15, 2016 by James Ross-Gowan Committed by Commit Bot Jun 16, 2016
Hide whitespace changes
Inline Side-by-side

Showing with 9 additions and 1 deletion

AUTHORS AUTHORS +1 -0

CONTRIBUTORS CONTRIBUTORS +1 -0

NativeWindow11Win32.cpp ...libANGLE/renderer/d3d/d3d11/win32/NativeWindow11Win32.cpp +7 -1

No files found.
--- a/AUTHORS
+++ b/AUTHORS
@@ -44,3 +44,4 @@ Josh Soref
 Maks Naumov
 Jinyoung Hur
 Sebastian Bergstein
+James Ross-Gowan
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -86,6 +86,7 @@ Jacek Caban
 Tibor den Ouden
 Régis Fénéon
 Sebastian Bergstein
+James Ross-Gowan
 Microsoft Corporation
 Cooper Partin

--- a/src/libANGLE/renderer/d3d/d3d11/win32/NativeWindow11Win32.cpp
+++ b/src/libANGLE/renderer/d3d/d3d11/win32/NativeWindow11Win32.cpp
@@ -166,6 +166,7 @@ HRESULT NativeWindow11Win32::createSwapChain(ID3D11Device *device,
                                                          nullptr, nullptr, &swapChain1);
        if (SUCCEEDED(result))
        {
+            factory2->MakeWindowAssociation(getNativeWindow(), DXGI_MWA_NO_ALT_ENTER);
            *swapChain = static_cast<IDXGISwapChain *>(swapChain1);
        }
        SafeRelease(factory2);
@@ -190,7 +191,12 @@ HRESULT NativeWindow11Win32::createSwapChain(ID3D11Device *device,
    swapChainDesc.Windowed           = TRUE;
    swapChainDesc.SwapEffect         = DXGI_SWAP_EFFECT_DISCARD;
-    return factory->CreateSwapChain(device, &swapChainDesc, swapChain);
+    HRESULT result = factory->CreateSwapChain(device, &swapChainDesc, swapChain);
+    if (SUCCEEDED(result))
+    {
+        factory->MakeWindowAssociation(getNativeWindow(), DXGI_MWA_NO_ALT_ENTER);
+    }
+    return result;
 }
 void NativeWindow11Win32::commitChange()