Improve support for non-colour displays by adding a mask of attributes to

[u/mdw/putty] / terminal.c

diff --git a/terminal.c b/terminal.c
index 06d6ee6..5950072 100644 (file)
--- a/terminal.c
+++ b/terminal.c
@@ -336,6 +336,7 @@ Terminal *term_init(Config *mycfg, void *frontend)
     term->nbeeps = 0;
     term->lastbeep = FALSE;
     term->beep_overloaded = FALSE;
+    term->attr_mask = 0xffffffff;
     term->resize_fn = NULL;
     term->resize_ctx = NULL;
 
@@ -3039,7 +3040,8 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise)
            if ((term->disptext[idx] ^ tattr) & ATTR_WIDE)
                dirty_line = TRUE;
 
-           break_run = (tattr != attr || j - start >= sizeof(ch));
+           break_run = (((tattr ^ attr) & term->attr_mask) ||
+               j - start >= sizeof(ch));
 
            /* Special hack for VT100 Linedraw glyphs */
            if ((attr & CSET_MASK) == 0x2300 && tchar >= 0xBA