X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fbufferobj.h;h=5dcc55301ce78f4477abfe87d230f3d17ec9cafa;hb=e70d0d22a2dccc1df2c88890a2964491cdafac94;hp=a5bfe886b398b3897bdf92e0588ed3a971cb44b5;hpb=f0993f81c7fab4ceb99b010d8ee2facbf4fdc737;p=mesa.git

diff --git a/src/mesa/main/bufferobj.h b/src/mesa/main/bufferobj.h
index a5bfe886b39..5dcc55301ce 100644
--- a/src/mesa/main/bufferobj.h
+++ b/src/mesa/main/bufferobj.h
@@ -45,8 +45,14 @@ _mesa_bufferobj_mapped(const struct gl_buffer_object *obj,
    return obj->Mappings[index].Pointer != NULL;
 }
 
-/** Can we not use this buffer while mapped? */
-static inline GLboolean
+/**
+ * Check whether the given buffer object is illegally mapped prior to
+ * drawing from (or reading back to) the buffer.
+ * Note that it's legal for a buffer to be mapped at draw/readback time
+ * if it was mapped persistently (See GL_ARB_buffer_storage spec).
+ * \return true if the buffer is illegally mapped, false otherwise
+ */
+static inline bool
 _mesa_check_disallowed_mapping(const struct gl_buffer_object *obj)
 {
    return _mesa_bufferobj_mapped(obj, MAP_USER) &&