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| author | yokota <yokota@FreeBSD.org> | 1997-09-04 23:01:06 +0000 |
|---|---|---|
| committer | yokota <yokota@FreeBSD.org> | 1997-09-04 23:01:06 +0000 |
| commit | ec0b9f839dbbd355210672792d5b803856b38c75 (patch) | |
| tree | ca8d2d6f2fac3265b5b0372df1b03bd0644b2173 /sys/isa/syscons.h | |
| parent | 930fa4a4383c1260c42a0b5ae7981c9b1471552d (diff) | |
| download | FreeBSD-src-ec0b9f839dbbd355210672792d5b803856b38c75.zip FreeBSD-src-ec0b9f839dbbd355210672792d5b803856b38c75.tar.gz | |
Add a new compile option SC_HISTORY_SIZE to specify the history buffer
size in terms of lines (instead of bytes). When changing video mode
in ioctl SW_XXX commands, syscons checks scp->history_size and
allocate a history buffer at least as large as the new screen size.
(This was unnecessary before, because HISTORY_SIZE was as large as 100
lines and this is bigger than the maximum screen size: 60 lines).
Similar adjustment is done in ioctl CONS_HISTORY command too.
PR: kern/4169
Reviewed by: sos
Diffstat (limited to 'sys/isa/syscons.h')
| -rw-r--r-- | sys/isa/syscons.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/isa/syscons.h b/sys/isa/syscons.h index 38c5ae4..578a71e 100644 --- a/sys/isa/syscons.h +++ b/sys/isa/syscons.h @@ -25,7 +25,7 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * - * $Id: syscons.h,v 1.31 1997/07/15 14:43:27 yokota Exp $ + * $Id: syscons.h,v 1.32 1997/08/25 23:21:55 bde Exp $ */ #ifndef _I386_ISA_SYSCONS_H_ @@ -101,7 +101,10 @@ #define FONT_8 2 #define FONT_14 4 #define FONT_16 8 -#define HISTORY_SIZE (COL * ROW * 4) +#if !defined(SC_HISTORY_SIZE) +#define SC_HISTORY_SIZE (ROW * 4) +#endif /* SC_HISTORY_SIZE */ +#define HISTORY_SIZE (COL * (SC_HISTORY_SIZE)) /* defines related to hardware addresses */ #define MONO_BASE 0x3B4 /* crt controller base mono */ |
