>From 783703cda4361c558606a9e29f182fe3e385c2a0 Mon Sep 17 00:00:00 2001 From: Dima Kogan Date: Wed, 3 Oct 2012 01:20:02 -0700 Subject: [PATCH] inboard X11 terminal now suppresses duplicate consecutive V commands --- term/x11.trm | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/term/x11.trm b/term/x11.trm index e16fcd1..73e615c 100644 --- a/term/x11.trm +++ b/term/x11.trm @@ -1487,7 +1487,20 @@ X11_move(unsigned int x, unsigned int y) TERM_PUBLIC void X11_vector(unsigned int x, unsigned int y) { + /* I detect identical consecutive V commands, and do not send duplicates. + This can net a huge efficiency gain if we're plotting lines finer than + the window resolution */ + static unsigned int xy_last[2]; + static long ftell_last = -1; + + if( ftell_last == ftell(X11_ipc) && x == xy_last[0] && y == xy_last[1] ) + return; + PRINT2("V%d %d\n", x, y); + + ftell_last = ftell(X11_ipc); + xy_last[0] = x; + xy_last[1] = y; } TERM_PUBLIC void -- 1.7.10.4