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Fix display.set_mode segfault after resizing #3501

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Fix display.set_mode segfault after resizing #3501

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59e8ab3
Fix display.set_mode segfault after resizing
MightyJosip Jun 15, 2025
2f9ebbe
Fix display.set_mode segfault after resizing
MightyJosip Jun 16, 2025
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17 changes: 12 additions & 5 deletions src_c/display.c
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Original file line number Diff line number Diff line change
Expand Up @@ -707,6 +707,16 @@ _get_video_window_pos(int *x, int *y, int *center_window)
return 0;
}

static void
_check_window_resized(SDL_Window *window)
{
SDL_Surface *sdl_surface = SDL_GetWindowSurface(window);
pgSurfaceObject *old_surface = pg_GetDefaultWindowSurface();
if (sdl_surface != old_surface->surf) {
old_surface->surf = sdl_surface;
}
}

static int SDLCALL
pg_ResizeEventWatch(void *userdata, SDL_Event *event)
{
Expand Down Expand Up @@ -786,11 +796,7 @@ pg_ResizeEventWatch(void *userdata, SDL_Event *event)
}

if (event->window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
SDL_Surface *sdl_surface = SDL_GetWindowSurface(window);
pgSurfaceObject *old_surface = pg_GetDefaultWindowSurface();
if (sdl_surface != old_surface->surf) {
old_surface->surf = sdl_surface;
}
_check_window_resized(window);
}
return 0;
}
Expand Down Expand Up @@ -1374,6 +1380,7 @@ pg_set_mode(PyObject *self, PyObject *arg, PyObject *kwds)
surface = pgSurface_New2(surf, newownedsurf != NULL);
}
else {
_check_window_resized(win);
pgSurface_SetSurface(surface, surf, newownedsurf != NULL);
Py_INCREF(surface);
}
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