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-rw-r--r--src/gallium/auxiliary/util/u_surface.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_surface.c b/src/gallium/auxiliary/util/u_surface.c
index daaa275ef2..cfdf7ab8f8 100644
--- a/src/gallium/auxiliary/util/u_surface.c
+++ b/src/gallium/auxiliary/util/u_surface.c
@@ -166,3 +166,19 @@ util_copy_framebuffer_state(struct pipe_framebuffer_state *dst,
pipe_surface_reference(&dst->zsbuf, src->zsbuf);
}
+
+
+void
+util_unreference_framebuffer_state(struct pipe_framebuffer_state *fb)
+{
+ unsigned i;
+
+ for (i = 0; i < fb->nr_cbufs; i++) {
+ pipe_surface_reference(&fb->cbufs[i], NULL);
+ }
+
+ pipe_surface_reference(&fb->zsbuf, NULL);
+
+ fb->width = fb->height = 0;
+ fb->nr_cbufs = 0;
+}