implement NV_vdpau_interop v7

v2: Actually implement interop between the gallium
    state tracker and the VDPAU backend.

v3: Make it also available in non legacy contexts,
    fix video buffer sharing.

v4: deny interop if we don't have the same screen object

v5: rebased on upstream changes

v6: implemented VDPAUGetSurfaceivNV, improved error handling,
    unregister all surfaces in VDPAUFiniNV

v7: squash merge with Mareks changes

Signed-off-by: Christian König <[email protected]>

1 files changed, 21 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/vdpau/surface.c b/src/gallium/state_trackers/vdpau/surface.c
index 074363bdafb..cd798a21a32 100644
--- a/src/gallium/state_trackers/vdpau/surface.c
+++ b/src/gallium/state_trackers/vdpau/surface.c
@@ -469,3 +469,24 @@ vlVdpVideoSurfaceClear(vlVdpSurface *vlsurf)
    }
    pipe->flush(pipe, NULL, 0);
 }
+
+/**
+ * Interop to mesa state tracker
+ */
+struct pipe_video_buffer *vlVdpVideoSurfaceGallium(VdpVideoSurface surface)
+{
+   vlVdpSurface *p_surf = vlGetDataHTAB(surface);
+   if (!p_surf)
+      return NULL;
+
+   pipe_mutex_lock(p_surf->device->mutex);
+   if (p_surf->video_buffer == NULL) {
+      struct pipe_context *pipe = p_surf->device->context;
+
+      /* try to create a video buffer if we don't already have one */
+      p_surf->video_buffer = pipe->create_video_buffer(pipe, &p_surf->templat);
+   }
+   pipe_mutex_unlock(p_surf->device->mutex);
+
+   return p_surf->video_buffer;
+}