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Windows: Set opengl swap interval whenever we make a new window current 

Apparently the windows OpenGL implementation associates the swap interval
not with the context, but with the window.

Fixes: QTBUG-59660
Change-Id: I78c4cc9f8a5815779a7489edfd731a1debb1e590
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Ulf Hermann 2019-01-22 12:57:52 +01:00
parent 024daeb08c
commit 730f0df17d
1 changed files with 2 additions and 2 deletions
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4
src/plugins/platforms/windows/qwindowsglcontext.cpp
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@ -1350,10 +1350,10 @@ bool QWindowsGLContext::makeCurrent(QPlatformSurface *surface)
// Set the swap interval
if (m_staticContext->wglSwapInternalExt) {
const int interval = surface->format().swapInterval();
if (interval >= 0 && m_swapInterval != interval) {
if (m_swapInterval != interval)
m_swapInterval = interval;
if (interval >= 0)
m_staticContext->wglSwapInternalExt(interval);
}
}
return success;