[PATCH] ddraw: Get new window size from the primary output after display mode changes.

[Zhiyi Zhang]

MonitorFromWindow() may return a different monitor if switching to a
smaller display mode.

Fix Railroad Tycoon II crashes.

Signed-off-by: Zhiyi Zhang 
---
 dlls/ddraw/ddraw.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index 6f640ef422a..6256c66e8a6 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -4926,9 +4926,7 @@ static void CDECL device_parent_wined3d_device_created(struct wined3d_device_par
 static void CDECL device_parent_mode_changed(struct wined3d_device_parent *device_parent)
 {
     struct ddraw *ddraw = ddraw_from_device_parent(device_parent);
-    MONITORINFO monitor_info;
-    HMONITOR monitor;
-    RECT *r;
+    struct wined3d_output_desc output_desc;

TRACE("device_parent %p.\n", device_parent);

@@ -4938,19 +4936,20 @@ static void CDECL device_parent_mode_changed(struct wined3d_device_parent *devic
         return;
     }

-    monitor = MonitorFromWindow(ddraw->swapchain_window, MONITOR_DEFAULTTOPRIMARY);
-    monitor_info.cbSize = sizeof(monitor_info);
-    if (!GetMonitorInfoW(monitor, &monitor_info))
+    if (FAILED(wined3d_output_get_desc(ddraw->wined3d_output, &output_desc)))
     {
-        ERR("Failed to get monitor info.\n");
+        ERR("Failed to get output description.\n");
         return;
     }

-    r = &monitor_info.rcMonitor;
-    TRACE("Resizing window %p to %s.\n", ddraw->swapchain_window, wine_dbgstr_rect(r));
+    TRACE("Resizing window %p to %s.\n", ddraw->swapchain_window,
+            wine_dbgstr_rect(&output_desc.desktop_rect));

-    if (!SetWindowPos(ddraw->swapchain_window, HWND_TOP, r->left, r->top,
-                      r->right - r->left, r->bottom - r->top, SWP_SHOWWINDOW | SWP_NOACTIVATE))
+    if (!SetWindowPos(ddraw->swapchain_window, HWND_TOP, output_desc.desktop_rect.left,
+                output_desc.desktop_rect.top,
+                output_desc.desktop_rect.right - output_desc.desktop_rect.left,
+                output_desc.desktop_rect.bottom - output_desc.desktop_rect.top,
+                SWP_SHOWWINDOW | SWP_NOACTIVATE))
         ERR("Failed to resize window.\n");

InterlockedCompareExchange(&ddraw->device_state, DDRAW_DEVICE_STATE_NOT_RESTORED, DDRAW_DEVICE_STATE_OK);

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=72406

Your paranoid android.

=== debiant (64 bit WoW report) ===

ddraw:
ddraw2.c:14449: Test failed: Expect window rect (0,0)-(1024,768), got (0,0)-(1024,739).
ddraw2.c:14456: Test failed: Expect window rect (0,0)-(1024,768), got (0,0)-(1024,739).

[Henri Verbeet]

On Thu, 28 May 2020 at 15:21, Zhiyi Zhang  wrote:
> - r = &monitor_info.rcMonitor;
> - TRACE("Resizing window %p to %s.\n", ddraw->swapchain_window, wine_dbgstr_rect(r));
> - TRACE("Resizing window %p to %s.\n", ddraw->swapchain_window,
> -
>        wine_dbgstr_rect(&output_desc.desktop_rect));
>
> - if (!SetWindowPos(ddraw->swapchain_window, HWND_TOP, r->left, r->top,
> -
>                  r->right - r->left, r->bottom - r->top, SWP_SHOWWINDOW | SWP_NOACTIVATE))
> - if (!SetWindowPos(ddraw->swapchain_window, HWND_TOP, output_desc.desktop_rect.left,
> -
>            output_desc.desktop_rect.top,
> -
>            output_desc.desktop_rect.right - output_desc.desktop_rect.left,
> -
>            output_desc.desktop_rect.bottom - output_desc.desktop_rect.top,
> -
>            SWP_SHOWWINDOW | SWP_NOACTIVATE))
>    ERR("Failed to resize window.\n");

I'm not sure that's an improvement. Why not simply "r =
&output_desc.desktop_rect;"?