[PATCH 0/3] MR9652: winex11: Allow client window creation on other process windows.

[Rémi Bernon (＠rbernon)]

This should fix Steam not rendering anymore on NVIDIA / XWayland.

[PATCH 1/3] win32u: Avoid a crash when drawable fails to be created.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/win32u/opengl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/win32u/opengl.c b/dlls/win32u/opengl.c
index 57a0c773cbc..8fdc7deaf2f 100644
--- a/dlls/win32u/opengl.c
+++ b/dlls/win32u/opengl.c
@@ -1656,7 +1656,7 @@ static BOOL context_sync_drawables( struct wgl_context *context, HDC draw_hdc, H
     if (draw_hdc && !context->draw) context->draw = get_dc_opengl_drawable( draw_hdc );
     if (read_hdc && !context->read) context->read = get_dc_opengl_drawable( read_hdc );

-    new_draw = get_updated_drawable( draw_hdc, context->format, context->draw );
+    if (!(new_draw = get_updated_drawable( draw_hdc, context->format, context->draw ))) return FALSE;
     if (!draw_hdc && context->draw == context->read) opengl_drawable_add_ref( (new_read = new_draw) );
     else if (draw_hdc && draw_hdc == read_hdc) opengl_drawable_add_ref( (new_read = new_draw) );
     else new_read = get_updated_drawable( read_hdc, context->format, context->read );

[PATCH 2/3] win32u: Check internal drawables before trying to create new ones.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/win32u/opengl.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/dlls/win32u/opengl.c b/dlls/win32u/opengl.c
index 8fdc7deaf2f..70744889d02 100644
--- a/dlls/win32u/opengl.c
+++ b/dlls/win32u/opengl.c
@@ -1631,17 +1631,21 @@ static struct opengl_drawable *get_updated_drawable( HDC hdc, int format, struct
 {
     HWND hwnd = NULL;

+    /* return the memory DCs drawables directly */
     if (hdc && !(hwnd = NtUserWindowFromDC( hdc ))) return get_dc_opengl_drawable( hdc );
     if (!hdc && drawable && drawable->client) hwnd = drawable->client->hwnd;
     if (!hwnd) return NULL;

-    /* if the window still has a drawable, keep using the one we have */
+    /* if the drawable we were using is for the same window, keep using it */
     if (drawable && is_client_surface_window( drawable->client, hwnd ))
     {
         opengl_drawable_add_ref( drawable );
         return drawable;
     }

+    /* retrieve D3D internal drawables from the DCs if they have any */
+    if (hdc && (drawable = get_dc_opengl_drawable( hdc ))) return drawable;
+
     /* get an updated drawable with the desired format */
     return get_window_unused_drawable( hwnd, format );
 }
@@ -1652,10 +1656,6 @@ static BOOL context_sync_drawables( struct wgl_context *context, HDC draw_hdc, H
     struct wgl_context *previous = NtCurrentTeb()->glContext;
     BOOL ret = FALSE;

-    /* retrieve the D3D internal drawables from the DCs if they have any */
-    if (draw_hdc && !context->draw) context->draw = get_dc_opengl_drawable( draw_hdc );
-    if (read_hdc && !context->read) context->read = get_dc_opengl_drawable( read_hdc );
-
     if (!(new_draw = get_updated_drawable( draw_hdc, context->format, context->draw ))) return FALSE;
     if (!draw_hdc && context->draw == context->read) opengl_drawable_add_ref( (new_read = new_draw) );
     else if (draw_hdc && draw_hdc == read_hdc) opengl_drawable_add_ref( (new_read = new_draw) );

[PATCH 3/3] winex11: Allow client window creation on other process windows.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/winex11.drv/window.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/dlls/winex11.drv/window.c b/dlls/winex11.drv/window.c
index 92a96fd70cc..13434a93d31 100644
--- a/dlls/winex11.drv/window.c
+++ b/dlls/winex11.drv/window.c
@@ -2345,9 +2345,7 @@ Window create_client_window( HWND hwnd, RECT client_rect, const XVisualInfo *vis

if (!data)
     {
-        /* explicitly create data for HWND_MESSAGE windows since they can be used for OpenGL */
-        HWND parent = NtUserGetAncestor( hwnd, GA_PARENT );
-        if (parent == NtUserGetDesktopWindow() || NtUserGetAncestor( parent, GA_PARENT )) return 0;
+        /* explicitly create data for HWND_MESSAGE and foreign windows since they can be used for OpenGL */
         if (!(data = alloc_win_data( thread_init_display(), hwnd ))) return 0;
         data->rects.window = data->rects.visible = data->rects.client = client_rect;
     }