Add new spice-gl stubs API

- spice_qxl_gl_scanout() to take the current scanout

- spice_qxl_gl_draw_async() to draw the scanout, is like other Spice async
  functions, it takes a cookie and will return in the
  QXLInterface.async_complete()

Two new fields are also added to QXLState, in order to save the current
scanout, and the pending async.

A scanout can't be updated if there are pending draw atm. Discarding
outdated draws is left as a future improvement to allow updating the
scanout without waiting for draw async to be done.

Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
[make QXL function names more coherent - Frediano Ziglio]
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/server/spice-server.syms b/server/spice-server.syms
index 4137546c..7987d51a 100644
--- a/server/spice-server.syms
+++ b/server/spice-server.syms
@@ -167,3 +167,9 @@ SPICE_SERVER_0.12.7 {
 global:
     spice_server_set_keepalive_timeout;
 } SPICE_SERVER_0.12.6;
+
+SPICE_SERVER_0.13.1 {
+global:
+    spice_qxl_gl_scanout;
+    spice_qxl_gl_draw_async;
+} SPICE_SERVER_0.12.7;