[PATCH 0/1] MR9738: win32u: Remove unnecessary drawable flush in context_sync_drawables.

[Rémi Bernon (＠rbernon)]

This fixes sluggish rendering of Steam and other CEF based applications,
as wined3d calls wglMakeCurrent with possibly already active surface
every time it tries to activate a context.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/9738

[PATCH 1/1] win32u: Remove unnecessary drawable flush in context_sync_drawables.

[Rémi Bernon]

From: Rémi Bernon <[e-mail]>

This fixes sluggish rendering of Steam and other CEF based applications,
as wined3d calls wglMakeCurrent with possibly already active surface
every time it tries to activate a context.
---
 dlls/win32u/opengl.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/win32u/opengl.c b/dlls/win32u/opengl.c
index 60349f8eace..bdcf0ff1743 100644
--- a/dlls/win32u/opengl.c
+++ b/dlls/win32u/opengl.c
@@ -1711,12 +1711,13 @@ static BOOL context_sync_drawables( struct wgl_context *context, HDC draw_hdc, H
 
         opengl_drawable_set_context( new_read, context );
         if (new_read != new_draw) opengl_drawable_set_context( new_draw, context );
+
+        opengl_drawable_flush( new_read, new_read->interval, 0 );
+        opengl_drawable_flush( new_draw, new_draw->interval, 0 );
     }
 
     if (ret)
     {
-        opengl_drawable_flush( new_read, new_read->interval, 0 );
-        opengl_drawable_flush( new_draw, new_draw->interval, 0 );
         /* update the current window drawable to the last used draw surface */
         if (new_draw->client) set_window_opengl_drawable( new_draw->client->hwnd, new_draw, TRUE );
         context_exchange_drawables( context, &new_draw, &new_read );
-- 
GitLab

https://gitlab.winehq.org/wine/wine/-/merge_requests/9738