Zhiyi Zhang : dxgi: Retrieve swapchains' fullscreen state from wined3d.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2b2ea820a410c3f3e9745a8b32bc2edd89e6c4d9
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=2b2ea820a410c3f3e9745a8b32bc2edd89e6c4d9

Author: Zhiyi Zhang <zzhang at codeweavers.com>
Date:   Wed Jun 19 14:59:02 2019 +0430

dxgi: Retrieve swapchains' fullscreen state from wined3d.

Once Alt+Enter handling is implemented, the fullscreen state may change
without dxgi necessarily being aware of it.

Signed-off-by: Zhiyi Zhang <zzhang at codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/dxgi/dxgi_private.h |  1 -
 dlls/dxgi/swapchain.c    | 14 ++++++++++----
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/dlls/dxgi/dxgi_private.h b/dlls/dxgi/dxgi_private.h
index b6999c7..553eace 100644
--- a/dlls/dxgi/dxgi_private.h
+++ b/dlls/dxgi/dxgi_private.h
@@ -173,7 +173,6 @@ struct d3d11_swapchain
     IWineDXGIDevice *device;
     IDXGIFactory *factory;
 
-    BOOL fullscreen;
     IDXGIOutput *target;
 };
 
diff --git a/dlls/dxgi/swapchain.c b/dlls/dxgi/swapchain.c
index e09df48..030bb67 100644
--- a/dlls/dxgi/swapchain.c
+++ b/dlls/dxgi/swapchain.c
@@ -388,7 +388,6 @@ static HRESULT STDMETHODCALLTYPE DECLSPEC_HOTPATCH d3d11_swapchain_SetFullscreen
 
     if (SUCCEEDED(hr))
     {
-        swapchain->fullscreen = fullscreen;
         if (swapchain->target)
             IDXGIOutput_Release(swapchain->target);
         swapchain->target = target;
@@ -404,11 +403,17 @@ static HRESULT STDMETHODCALLTYPE d3d11_swapchain_GetFullscreenState(IDXGISwapCha
         BOOL *fullscreen, IDXGIOutput **target)
 {
     struct d3d11_swapchain *swapchain = d3d11_swapchain_from_IDXGISwapChain1(iface);
+    struct wined3d_swapchain_desc swapchain_desc;
 
     TRACE("iface %p, fullscreen %p, target %p.\n", iface, fullscreen, target);
 
     if (fullscreen)
-        *fullscreen = swapchain->fullscreen;
+    {
+        wined3d_mutex_lock();
+        wined3d_swapchain_get_desc(swapchain->wined3d_swapchain, &swapchain_desc);
+        wined3d_mutex_unlock();
+        *fullscreen = !swapchain_desc.windowed;
+    }
 
     if (target)
     {
@@ -781,6 +786,7 @@ static const struct wined3d_parent_ops d3d11_swapchain_wined3d_parent_ops =
 HRESULT d3d11_swapchain_init(struct d3d11_swapchain *swapchain, struct dxgi_device *device,
         struct wined3d_swapchain_desc *desc)
 {
+    BOOL fullscreen;
     HRESULT hr;
 
     /* A reference to the implicit swapchain is held by the wined3d device. In
@@ -813,7 +819,7 @@ HRESULT d3d11_swapchain_init(struct d3d11_swapchain *swapchain, struct dxgi_devi
     if (!desc->windowed && (!desc->backbuffer_width || !desc->backbuffer_height))
         FIXME("Fullscreen swapchain with back buffer width/height equal to 0 not supported properly.\n");
 
-    swapchain->fullscreen = !desc->windowed;
+    fullscreen = !desc->windowed;
     desc->windowed = TRUE;
     if (FAILED(hr = wined3d_swapchain_create(device->wined3d_device, desc, swapchain,
             &d3d11_swapchain_wined3d_parent_ops, &swapchain->wined3d_swapchain)))
@@ -823,7 +829,7 @@ HRESULT d3d11_swapchain_init(struct d3d11_swapchain *swapchain, struct dxgi_devi
     }
 
     swapchain->target = NULL;
-    if (swapchain->fullscreen)
+    if (fullscreen)
     {
         desc->windowed = FALSE;
         if (FAILED(hr = wined3d_swapchain_set_fullscreen(swapchain->wined3d_swapchain,