egl: Add reference count for resources.

This is a really simple mechanism.  There is no atomicity and the caller
is expected to hold the display lock.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/egl/main/eglsurface.h b/src/egl/main/eglsurface.h
index 2812dc36ab0..b833258bf69 100644
--- a/src/egl/main/eglsurface.h
+++ b/src/egl/main/eglsurface.h
@@ -81,6 +81,28 @@ _eglIsSurfaceBound(_EGLSurface *surf)
 
 
 /**
+ * Increment reference count for the surface.
+ */
+static INLINE _EGLSurface *
+_eglGetSurface(_EGLSurface *surf)
+{
+   if (surf)
+      _eglGetResource(&surf->Resource);
+   return surf;
+}
+
+
+/**
+ * Decrement reference count for the surface.
+ */
+static INLINE EGLBoolean
+_eglPutSurface(_EGLSurface *surf)
+{
+   return (surf) ? _eglPutResource(&surf->Resource) : EGL_FALSE;
+}
+
+
+/**
  * Link a surface to its display and return the handle of the link.
  * The handle can be passed to client directly.
  */