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qpa: Fix a crash in EGLPlatformContext::swapBuffers()

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After internalWindow->present() is called, we cannot guarantee that the
current opengl context hasn't changed. If kwin changes the current opengl
context, bindContextFBO() can crash because there may not be current
QOpenGLContext.

BUG: 455435
This commit is contained in:
Vlad Zahorodnii 2022-06-17 11:14:33 +03:00
parent 34ce3dde87
commit 24bc3fed6c
1 changed files with 2 additions and 1 deletions
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3
src/plugins/qpa/eglplatformcontext.cpp
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@ -120,8 +120,9 @@ void EGLPlatformContext::swapBuffers(QPlatformSurface *surface)
} }
context()->makeCurrent(surface->surface()); context()->makeCurrent(surface->surface());
glFlush(); glFlush();
internalWindow->present(window->swapFBO()); auto fbo = window->swapFBO();
window->bindContentFBO(); window->bindContentFBO();
internalWindow->present(fbo);
} }
} }