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make the openGL stuff do nothing if null

This commit is contained in:
Adam D. Ruppe 2016-02-01 13:53:48 -05:00
parent 847903e443
commit 55c8a53b09
1 changed files with 3 additions and 2 deletions
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5
simpledisplay.d
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@ -936,11 +936,12 @@ class SimpleWindow : CapableOfHandlingNativeEvent {
void redrawOpenGlSceneNow() {
version(X11) if (!this._visible) return; // no need to do this if window is invisible
if (this._closed) return; // window may be closed, but timer is still firing; avoid GLXBadDrawable error
if(redrawOpenGlScene is null)
return;
this.setAsCurrentOpenGlContext();
if(redrawOpenGlScene !is null)
redrawOpenGlScene();
redrawOpenGlScene();
this.swapOpenGlBuffers();
// at least nvidia proprietary crap segfaults on exit if you won't do this and will call glTexSubImage2D() too fast; no, `glFlush()` won't work.