gallium: Add destroy callback to all *_winsys interfaces.

For consistency and to simplify these objects' destruction.

3 files changed, 10 insertions, 0 deletions

diff --git a/src/gallium/drivers/i965simple/brw_context.c b/src/gallium/drivers/i965simple/brw_context.c
index a276cc0535..8326f7b9c4 100644
--- a/src/gallium/drivers/i965simple/brw_context.c
+++ b/src/gallium/drivers/i965simple/brw_context.c
@@ -52,6 +52,9 @@ static void brw_destroy(struct pipe_context *pipe)
 {
    struct brw_context *brw = brw_context(pipe);
 
+   if(brw->winsys->destroy)
+      brw->winsys->destroy(brw->winsys);
+   
    FREE(brw);
 }
 
diff --git a/src/gallium/drivers/i965simple/brw_screen.c b/src/gallium/drivers/i965simple/brw_screen.c
index 6d8f24d1c4..fadfbf94ab 100644
--- a/src/gallium/drivers/i965simple/brw_screen.c
+++ b/src/gallium/drivers/i965simple/brw_screen.c
@@ -206,6 +206,11 @@ brw_is_format_supported( struct pipe_screen *screen,
 static void
 brw_destroy_screen( struct pipe_screen *screen )
 {
+   struct pipe_winsys *winsys = screen->winsys;
+
+   if(winsys->destroy)
+      winsys->destroy(winsys);
+
    FREE(screen);
 }
 
diff --git a/src/gallium/drivers/i965simple/brw_winsys.h b/src/gallium/drivers/i965simple/brw_winsys.h
index b67bd73750..ec1e400418 100644
--- a/src/gallium/drivers/i965simple/brw_winsys.h
+++ b/src/gallium/drivers/i965simple/brw_winsys.h
@@ -112,6 +112,8 @@ enum brw_cache_id {
  */
 struct brw_winsys {
 
+   void (*destroy)(struct brw_winsys *);
+   
    /**
     * Reserve space on batch buffer.
     *