Loop from asyncgen_hooks

examples/gui_direct.py

@@ -7,6 +7,7 @@
 
 # run_example = false
 
+import sys
 import time
 import atexit
 
@@ -36,6 +37,15 @@
 context.set_physical_size(*glfw.get_framebuffer_size(window))
 
 
+# Setup async callbacks. This is optional, but it enables code using promise.then().
+# The asyncgen hook is a stub for the system to detect the call_soon_threadsafe function.
+# This works if both are defined on the same class or in the same module.
+to_call_soon = []
+call_soon_threadsafe = to_call_soon.append
+stub_asynchen_hook = lambda agen: None
+sys.set_asyncgen_hooks(stub_asynchen_hook)
+
+
 def main():
     draw_frame = setup_drawing_sync(context)
 
@@ -50,6 +60,15 @@ def main():
         # resize handling
         context.set_physical_size(*glfw.get_framebuffer_size(window))
 
+        # Call async callbacks (optional, see above)
+        callbacks = to_call_soon.copy()
+        to_call_soon.clear()
+        for cb in callbacks:
+            try:
+                cb()
+            except Exception as err:
+                print(err)
+
         # draw a frame
         draw_frame()
         # present the frame to the screen

examples/tests/test_examples.py

@@ -79,7 +79,8 @@ def test_examples_screenshots(
     def unload_module():
         del sys.modules[module_name]
 
-    request.addfinalizer(unload_module)
+    if request:
+        request.addfinalizer(unload_module)
 
     if not hasattr(example, "canvas"):
         # some examples we screenshot test don't have a canvas as a global variable when imported,
@@ -188,4 +189,4 @@ def test_examples_run(module, force_offscreen):
     os.environ["RENDERCANVAS_FORCE_OFFSCREEN"] = "true"
     pytest.getoption = lambda x: False
     is_lavapipe = True
-    test_examples_screenshots("validate_volume", pytest, None, None)
+    test_examples_screenshots("cube", pytest, mock_time, None, None)

pyproject.toml

@@ -12,7 +12,6 @@ requires-python = ">= 3.10"
 dependencies = [
     "cffi>=1.15.0",
     "rubicon-objc>=0.4.1; sys_platform == 'darwin'",
-    "sniffio",
     "rendercanvas >=2.4",                            # Temporarily depend on rendercanvas because we re-aligned apis. Remove in a few months
 ]
 

tests/test_api.py

@@ -100,7 +100,7 @@ def test_enums_and_flags_and_structs():
 
 def test_base_wgpu_api():
     # Fake a device and an adapter
-    adapter = wgpu.GPUAdapter(None, set(), {}, wgpu.GPUAdapterInfo({}), None)
+    adapter = wgpu.GPUAdapter(None, set(), {}, wgpu.GPUAdapterInfo({}))
     queue = wgpu.GPUQueue("", None, None)
     device = wgpu.GPUDevice("device08", -1, adapter, {42, 43}, {}, queue)