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.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index 911298b37c8..88bb8b81769 100644
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -502,6 +502,16 @@ process_buffers(struct dri2_drawable * pdraw, DRI2Buffer * buffers,
 
 }
 
+unsigned dri2GetSwapEventType(Display* dpy, XID drawable)
+{
+      struct glx_display *glx_dpy = __glXInitialize(dpy);
+      __GLXDRIdrawable *pdraw;
+      pdraw = dri2GetGlxDrawableFromXDrawableId(dpy, drawable);
+      if (!pdraw || !(pdraw->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK))
+         return 0;
+      return glx_dpy->codes->first_event + GLX_BufferSwapComplete;
+}
+
 static int64_t
 dri2SwapBuffers(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor,
 		int64_t remainder)