diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/system.h | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/common/system.h b/common/system.h index d5706e2244..fc5535a4dc 100644 --- a/common/system.h +++ b/common/system.h @@ -524,14 +524,10 @@ public: * Flush the whole screen, that is render the current content of the screen * framebuffer to the display. * - * Depending on the backend, this can be a relatively slow operation. Since - * a full screen update could take place upon each call, you should call - * this method as rarely as possible, but of course still as often as - * necessary. - * - * @todo Yes, this is vague. We probably should try to specify this clearly. - * See <http://www.nabble.com/ATTN-porters%3A-updateScreen%28%29-OSystem-method-tt3960261.html#a3960261> - * for a discussion on the subject. + * This method could be called very often by engines. Backends are hence + * supposed to only perform any redrawing if it is necessary, and otherwise + * return immediately. For a discussion of the subject, see + * <http://www.nabble.com/ATTN-porters%3A-updateScreen%28%29-OSystem-method-tt3960261.html#a3960261> */ virtual void updateScreen() = 0; |