BF: adding a potential fix to the pyglet shadow_window issue

Some graphics cards (or their drivers) don't support OpenGL shadow windows, which pyglet uses to bind textures etc. Turning it off should only affect people that need multiple windows, with stimuli shared between them.
psychopy · Dec 8, 2017 · a1c29d3a7437b2b6a4977943cb5cb9242f34afed · a1c29d3
1 parent ae283ce
commit a1c29d3a7437b2b6a4977943cb5cb9242f34afed
Unified Split

Showing with 24 additions and 7 deletions.

+1 −1 psychojs

+23 −6 psychopy/visual/window.py
diff --git a/psychojs b/psychojs
diff --git a/psychopy/visual/window.py b/psychopy/visual/window.py
@@ -1469,12 +1469,29 @@ def _setupPyglet(self):
            style = None
        else:
            style = 'borderless'
-        self.winHandle = pyglet.window.Window(width=w, height=h,
-                                              caption="PsychoPy",
-                                              fullscreen=self._isFullScr,
-                                              config=config,
-                                              screen=thisScreen,
-                                              style=style)
+        try:
+            self.winHandle = pyglet.window.Window(
+                    width=w, height=h,
+                    caption="PsychoPy",
+                    fullscreen=self._isFullScr,
+                    config=config,
+                    screen=thisScreen,
+                    style=style)
+        except pyglet.gl.ContextException:
+            # turn off the shadow window an try again
+            pyglet.options['shadow_window'] = False
+            self.winHandle = pyglet.window.Window(
+                    width=w, height=h,
+                    caption="PsychoPy",
+                    fullscreen=self._isFullScr,
+                    config=config,
+                    screen=thisScreen,
+                    style=style)
+            logging.warning("Pyglet shadow_window has been turned off. This is "
+                            "only an issue for you if you need multiple "
+                            "stimulus windows, in which case update your "
+                            "graphics card and/or graphics drivers.")
+
        if sys.platform == 'win32':
            # pyHook window hwnd maps to:
            # pyglet 1.14 -> window._hwnd