From 58486350eb202f8c570a630a5d18f1a028c2512a Mon Sep 17 00:00:00 2001
From: Zhiyi Zhang <zzhang@codeweavers.com>
Date: Tue, 5 May 2020 20:45:52 +0800
Subject: [PATCH] dxgi/tests: Fix a possible test failure on D3D12.

Calling d3d12_swapchain_Present() right after switching to full screen
mode may fail because the swapchain window may be in the animation of
becoming full screen and vkQueuePresentKHR() returns VK_ERROR_OUT_OF_DATE_KHR,
even after d3d12_swapchain_present() tried to recreate the swapchain.

Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/dxgi/tests/dxgi.c | 38 ++++++++++++++++++++------------------
 1 file changed, 20 insertions(+), 18 deletions(-)

diff --git a/dlls/dxgi/tests/dxgi.c b/dlls/dxgi/tests/dxgi.c
index 32aae2567f0..4ca0b952f8b 100644
--- a/dlls/dxgi/tests/dxgi.c
+++ b/dlls/dxgi/tests/dxgi.c
@@ -129,6 +129,24 @@ static void get_virtual_rect(RECT *rect)
     rect->bottom = rect->top + GetSystemMetrics(SM_CYVIRTUALSCREEN);
 }
 
+/* try to make sure pending X events have been processed before continuing */
+static void flush_events(void)
+{
+    int diff = 200;
+    DWORD time;
+    MSG msg;
+
+    time = GetTickCount() + diff;
+    while (diff > 0)
+    {
+        if (MsgWaitForMultipleObjects(0, NULL, FALSE, 100, QS_ALLINPUT) == WAIT_TIMEOUT)
+            break;
+        while (PeekMessageA(&msg, 0, 0, 0, PM_REMOVE))
+            DispatchMessageA(&msg);
+        diff = time - GetTickCount();
+    }
+}
+
 #define check_interface(a, b, c, d) check_interface_(__LINE__, a, b, c, d)
 static HRESULT check_interface_(unsigned int line, void *iface, REFIID iid,
         BOOL supported, BOOL is_broken)
@@ -4276,6 +4294,7 @@ static void test_swapchain_present(IUnknown *device, BOOL is_d3d12)
             skip("Test %u: Could not change fullscreen state.\n", i);
             continue;
         }
+        flush_events();
         ok(hr == S_OK, "Test %u: Got unexpected hr %#x.\n", i, hr);
         hr = IDXGISwapChain_ResizeBuffers(swapchain, 0, 0, 0, DXGI_FORMAT_UNKNOWN, 0);
         todo_wine_if(!is_d3d12) ok(hr == S_OK, "Test %u: Got unexpected hr %#x.\n", i, hr);
@@ -4427,6 +4446,7 @@ static void test_swapchain_present(IUnknown *device, BOOL is_d3d12)
         todo_wine ok(!fullscreen, "Test %u: Got unexpected fullscreen status.\n", i);
 
         DestroyWindow(occluding_window);
+        flush_events();
         hr = IDXGISwapChain_ResizeBuffers(swapchain, 0, 0, 0, DXGI_FORMAT_UNKNOWN, 0);
         todo_wine_if(!is_d3d12) ok(hr == S_OK, "Test %u: Got unexpected hr %#x.\n", i, hr);
         hr = IDXGISwapChain_Present(swapchain, 0, flags[i]);
@@ -4903,24 +4923,6 @@ static void test_object_wrapping(void)
     ok(!refcount, "Factory has %u references left.\n", refcount);
 }
 
-/* try to make sure pending X events have been processed before continuing */
-static void flush_events(void)
-{
-    int diff = 200;
-    DWORD time;
-    MSG msg;
-
-    time = GetTickCount() + diff;
-    while (diff > 0)
-    {
-        if (MsgWaitForMultipleObjects(0, NULL, FALSE, 100, QS_ALLINPUT) == WAIT_TIMEOUT)
-            break;
-        while (PeekMessageA(&msg, 0, 0, 0, PM_REMOVE))
-            DispatchMessageA(&msg);
-        diff = time - GetTickCount();
-    }
-}
-
 struct adapter_info
 {
     const WCHAR *name;