gallium: Add st_context_iface::share to st_api.

It will be used to implement wglShareLists.  Fill st_context_iface::copy
for glXCopyContext as well.

diff --git a/src/gallium/include/state_tracker/st_api.h b/src/gallium/include/state_tracker/st_api.h
index c73a53db330ed92186674fdbc7c6550c5c5e265e..565a09614a4479ec5cd4734c1deaac0cb48ebf7d 100644 (file)
--- a/src/gallium/include/state_tracker/st_api.h
+++ b/src/gallium/include/state_tracker/st_api.h
@@ -348,6 +348,12 @@ struct st_context_iface
    void (*copy)(struct st_context_iface *stctxi,
                 struct st_context_iface *stsrci, unsigned mask);
 
+   /**
+    * Used to implement wglShareLists.
+    */
+   boolean (*share)(struct st_context_iface *stctxi,
+                    struct st_context_iface *stsrci);
+
    /**
     * Look up and return the info of a resource for EGLImage.
     *

diff --git a/src/mesa/state_tracker/st_manager.c b/src/mesa/state_tracker/st_manager.c
index 35b59de5a06ab0b92d8c33ce8b902fd783a2aad3..15e7b8921c397200cb360493ea31660f3c750f3f 100644 (file)
--- a/src/mesa/state_tracker/st_manager.c
+++ b/src/mesa/state_tracker/st_manager.c
@@ -610,6 +610,26 @@ st_context_teximage(struct st_context_iface *stctxi, enum st_texture_type target
    return TRUE;
 }
 
+static void
+st_context_copy(struct st_context_iface *stctxi,
+                struct st_context_iface *stsrci, unsigned mask)
+{
+   struct st_context *st = (struct st_context *) stctxi;
+   struct st_context *src = (struct st_context *) stsrci;
+
+   _mesa_copy_context(src->ctx, st->ctx, mask);
+}
+
+static boolean
+st_context_share(struct st_context_iface *stctxi,
+                 struct st_context_iface *stsrci)
+{
+   struct st_context *st = (struct st_context *) stctxi;
+   struct st_context *src = (struct st_context *) stsrci;
+
+   return _mesa_share_state(st->ctx, src->ctx);
+}
+
 static void
 st_context_destroy(struct st_context_iface *stctxi)
 {
@@ -677,7 +697,8 @@ st_api_create_context(struct st_api *stapi, struct st_manager *smapi,
       st_context_notify_invalid_framebuffer;
    st->iface.flush = st_context_flush;
    st->iface.teximage = st_context_teximage;
-   st->iface.copy = NULL;
+   st->iface.copy = st_context_copy;
+   st->iface.share = st_context_share;
    st->iface.st_context_private = (void *) smapi;
 
    return &st->iface;