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| author | H. Peter Anvin <hpa@zytor.com> | 2006-09-11 22:10:21 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2006-09-11 22:10:21 -0700 |
| commit | 9ac07bc4aad3c52a63c2c1063cc7fde9d103fcf4 (patch) | |
| tree | bdf8f40e7f2d37598b65b12c775478ce64055d75 /com32/lib/sys/ansicon_write.c | |
| parent | 146c0ce9b8f15b77c9a215cc65bad0edebb789a6 (diff) | |
| download | syslinux-9ac07bc4aad3c52a63c2c1063cc7fde9d103fcf4.tar.gz | |
Cursor support for vesacon
Diffstat (limited to 'com32/lib/sys/ansicon_write.c')
| -rw-r--r-- | com32/lib/sys/ansicon_write.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/com32/lib/sys/ansicon_write.c b/com32/lib/sys/ansicon_write.c index e3fb0ec7..43b7c18b 100644 --- a/com32/lib/sys/ansicon_write.c +++ b/com32/lib/sys/ansicon_write.c @@ -43,9 +43,9 @@ static void ansicon_erase(const struct term_state *, int, int, int, int); static void ansicon_write_char(int, int, uint8_t, const struct term_state *); -static void ansicon_showcursor(const struct term_state *, int); +static void ansicon_showcursor(const struct term_state *); static void ansicon_scroll_up(const struct term_state *); -static void ansicon_set_cursor(int, int); +static void ansicon_set_cursor(int, int, int); static struct term_state ts; struct ansi_ops __ansicon_ops = { @@ -72,6 +72,8 @@ static struct term_info ti = reinitialization. */ static int ansicon_counter = 0; +static uint16_t cursor_type; /* Saved cursor pattern */ + /* Common setup */ int __ansicon_open(struct file_info *fp) { @@ -101,7 +103,7 @@ int __ansicon_open(struct file_info *fp) ireg.eax.b[1] = 0x03; ireg.ebx.b[1] = BIOS_PAGE; __intcall(0x10, &ireg, &oreg); - ti.ts->cursor_type = oreg.ecx.w[0]; + cursor_type = oreg.ecx.w[0]; } } @@ -161,21 +163,23 @@ static void ansicon_erase(const struct term_state *st, } /* Show or hide the cursor */ -static void ansicon_showcursor(const struct term_state *st, int yes) +static void ansicon_showcursor(const struct term_state *st) { static com32sys_t ireg; ireg.eax.b[1] = 0x01; - ireg.ecx.w[0] = yes ? st->cursor_type : 0x2020; + ireg.ecx.w[0] = st->cursor ? cursor_type : 0x2020; __intcall(0x10, &ireg, NULL); } -static void ansicon_set_cursor(int x, int y) +static void ansicon_set_cursor(int x, int y, int visible) { const int page = BIOS_PAGE; struct curxy xy = BIOS_CURXY[page]; static com32sys_t ireg; + (void)visible; + if (xy.x != x || xy.y != y) { ireg.eax.b[1] = 0x02; ireg.ebx.b[1] = page; @@ -190,7 +194,7 @@ static void ansicon_write_char(int x, int y, uint8_t ch, { static com32sys_t ireg; - ansicon_set_cursor(x, y); + ansicon_set_cursor(x, y, 0); ireg.eax.b[1] = 0x09; ireg.eax.b[0] = ch; |