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deal with negative cache sizes

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This commit is contained in:
macallan 2012-07-12 01:21:08 +00:00
parent 7daaf29c68
commit 4de7bc18ac
1 changed files with 2 additions and 1 deletions
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3
sys/dev/wscons/wsdisplay_glyphcache.c
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@ -1,4 +1,4 @@
/* $NetBSD: wsdisplay_glyphcache.c,v 1.2 2012/04/19 08:46:17 macallan Exp $ */
/* $NetBSD: wsdisplay_glyphcache.c,v 1.3 2012/07/12 01:21:08 macallan Exp $ */
/*
* Copyright (c) 2012 Michael Lorenz
@ -47,6 +47,7 @@ glyphcache_init(glyphcache *gc, int first, int lines, int width,
gc->gc_cellheight = cellheight;
gc->gc_firstline = first;
gc->gc_cellsperline = width / cellwidth;
if (lines < 0) lines = 0;
cache_lines = lines / cellheight;
gc->gc_numcells = cache_lines * gc->gc_cellsperline;
if (gc->gc_numcells > 256)