new comment

diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index c170f917d9be466cca5a8273130c201ecda50fb2..3980d09f8ae3b22dfd2bdd06b2fc0653acfdce15 100644 (file)
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -1184,6 +1184,7 @@ _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
    }
 
    if (ctx->DrawBuffer->Name == 0) {
+      /* Can't attach new renderbuffers to a window system framebuffer */
       _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
       return;
    }