[PATCH 1/3] winex11.drv: Check the current context in X11DRV_wglMakeCurrent().

[Rico Schüller]

Hi,

this patch series fixes a bug which happens on windows with wined3d. 
There a second call to wglMakeCurrent(NULL, NULL) fails, which will in 
one case result in an early return in context_set_current(), which 
doesn't set the the current context to NULL in such a case, but frees 
the variable. So on the next call to context_set_current() (e.g. from 
WineD3D_CreateFakeGLContext()) the memory in old->... could be some 
other random memory and the app could crash.

The first patch adds a fix for winex11.drv to change the behaviour to 
the one on xp. The second patch adds a test case to opengl32/tests. And 
the third one fixes the behaviour in wined3d.

Cheers
Rico

---
  dlls/winex11.drv/opengl.c |   13 +++++++++++--
  1 files changed, 11 insertions(+), 2 deletions(-)


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