fix crash when minimizing window

[Lcbx]

PR is a fix for crash when minimizing window
OS: windows 11
backend: glfw/vulkan

output before fix :

File "...\rendercanvas\base.py", line 361, in __maybe_emit_resize_event
    self._canvas_context._rc_set_size_dict(self._size_info)
  File "...\rendercanvas\contexts\basecontext.py", line 54, in _rc_set_size_dict
    self._wgpu_context.set_physical_size(*size_info["physical_size"])
  File "...\wgpu\_classes.py", line 277, in set_physical_size
    raise ValueError("Physical size values must be positive.")
ValueError: Physical size values must be positive.

didn't feel like creating an issue on top of the PR.
Thx for the lib and happy new year👍

[Vipitis]

this is addressed in wgpu-py too: pygfx/wgpu-py#788 I believe you want to allow zero size so no draws happen. If I ready your change correctly it would simply ignore the resize when minimized and keep running "in the background".

[Lcbx]

fixed the issue @Vipitis raised

seems to me like this should be fixed in rendercanvas,
but feel free to close the PR if you don't think so

saw the fix in wgpu, taking mine down

[almarklein]

Thanks for the effort though!