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/eglcontext.h b/src/egl/main/eglcontext.h
index c2b8280b67..9c1e2184c6 100644
--- a/src/egl/main/eglcontext.h
+++ b/src/egl/main/eglcontext.h
@@ -43,6 +43,28 @@ _eglBindContext(_EGLContext **ctx, _EGLSurface **draw, _EGLSurface **read);
 
 
 /**
+ * Increment reference count for the context.
+ */
+static INLINE _EGLContext *
+_eglGetContext(_EGLContext *ctx)
+{
+   if (ctx)
+      _eglGetResource(&ctx->Resource);
+   return ctx;
+}
+
+
+/**
+ * Decrement reference count for the context.
+ */
+static INLINE EGLBoolean
+_eglPutContext(_EGLContext *ctx)
+{
+   return (ctx) ? _eglPutResource(&ctx->Resource) : EGL_FALSE;
+}
+
+
+/**
  * Return true if the context is bound to a thread.
  *
  * The binding is considered a reference to the context.  Drivers should not