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Implemented Kivy/SDL2 workaround for slow window resize updates on Linux

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Mark Qvist 2025-11-04 15:26:00 +01:00
parent 00b9517458
commit e5dfa81b0a
1 changed files with 32 additions and 0 deletions
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32
sbapp/main.py
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@ -133,6 +133,36 @@ def apply_ui_scale():
except Exception as e:
RNS.log(f"Error while reading saved window configuration: {e}", RNS.LOG_ERROR)
###################################################
# Kivy/SDL2 run-time patch to fix horribly slow
# window resize updates on Linux. For more info:
# https://github.com/kivy/kivy/issues/9106
#
_sdl2_window_event_filter_original = None
_sdl2_window_event_filter_instance = None
def _sdl2_window_event_filter_proxy(action, *largs):
global _sdl2_window_event_filter_original
global _sdl2_window_event_filter_instance
if not action == 'windowresized': return _sdl2_window_event_filter_original(action, *largs)
else:
_sdl2_window_event_filter_instance._size = largs
_sdl2_window_event_filter_instance._win.resize_window(*_sdl2_window_event_filter_instance._size)
# The only change this patched method makes is to
# remove the offending "EventLoop.idle()" statement
# EventLoop.idle()
return 0
def patch_sdl_window_events(patch_target):
if RNS.vendor.platformutils.is_linux():
global _sdl2_window_event_filter_original
global _sdl2_window_event_filter_instance
_sdl2_window_event_filter_original = patch_target._event_filter
_sdl2_window_event_filter_instance = patch_target
patch_target._event_filter = _sdl2_window_event_filter_proxy
patch_target._win.set_event_filter(patch_target._event_filter)
#
# End of Kivy/SDL2 patch ##########################
if args.export_settings:
from .sideband.core import SidebandCore
sideband = SidebandCore(
@ -1531,6 +1561,8 @@ class SidebandApp(MDApp):
Window.bind(on_minimize=self.on_minimize)
Window.bind(on_restore=self.on_restore)
patch_sdl_window_events(Window)
if __variant__ != "":
variant_str = " "+__variant__
else: