glx: decouple dri2.c and GLX, fixing Gallium EGL and d3d1x build
The Gallium EGL state tracker reuses dri2.c but not the GLX code.
Currently there is a bit of code in dri2.c that is incorrectly tied
to GLX: instead, make it call an helper that both GLX and Gallium EGL
implement, like dri2InvalidateBuffers.
This avoids a link error complaining that dri2GetGlxDrawableFromXDrawableId
is undefined.
Note that we might want to move the whole event translation elsewhere,
and probably stop using non-XCB DRI2 altogether, but this seems to be
the minimal fix.
diff --git a/src/glx/glxclient.h b/src/glx/glxclient.h
index b453e6d..324b5a6 100644
--- a/src/glx/glxclient.h
+++ b/src/glx/glxclient.h
@@ -150,6 +150,7 @@
extern __GLXDRIdisplay *driCreateDisplay(Display * dpy);
extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy);
extern void dri2InvalidateBuffers(Display *dpy, XID drawable);
+extern unsigned dri2GetSwapEventType(Display *dpy, XID drawable);
/*