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/i915simple/i915_context.c b/src/gallium/drivers/i915simple/i915_context.c
index 4c01b8d5b17..e3d19017b5d 100644
--- a/src/gallium/drivers/i915simple/i915_context.c
+++ b/src/gallium/drivers/i915simple/i915_context.c
@@ -44,6 +44,9 @@ static void i915_destroy( struct pipe_context *pipe )
    struct i915_context *i915 = i915_context( pipe );
 
    draw_destroy( i915->draw );
+   
+   if(i915->winsys)
+      i915->winsys->destroy(i915->winsys);
 
    FREE( i915 );
 }
diff --git a/src/gallium/drivers/i915simple/i915_screen.c b/src/gallium/drivers/i915simple/i915_screen.c
index 4b1b8af7da8..0afa17bed85 100644
--- a/src/gallium/drivers/i915simple/i915_screen.c
+++ b/src/gallium/drivers/i915simple/i915_screen.c
@@ -193,6 +193,11 @@ i915_is_format_supported( struct pipe_screen *screen,
 static void
 i915_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/i915simple/i915_winsys.h b/src/gallium/drivers/i915simple/i915_winsys.h
index 9afaa16a62c..81904c2a742 100644
--- a/src/gallium/drivers/i915simple/i915_winsys.h
+++ b/src/gallium/drivers/i915simple/i915_winsys.h
@@ -75,6 +75,8 @@ struct pipe_screen;
  */
 struct i915_winsys {
 
+   void (*destroy)( struct i915_winsys *sws );
+   
    /**
     * Get the current batch buffer from the winsys.
     */