- Break scrn_timer() into two pieces. Now screen update is done in a

separate routine: scupdate() called from scrn_timer().

- Make sure that the screen is updated for the low-level console
routines sccngetc() and sccncheckc().  A new routine, sccnupdate(),
is introduced and will call scupdate() above.
Requested by: bde and msmith

OKed by: sos
This commit is contained in:
yokota 1998-02-11 14:58:15 +00:00
parent 03dbb70ff3
commit f2c9b5f019
3 changed files with 291 additions and 255 deletions

View File

@ -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.c,v 1.247 1998/01/24 02:54:26 eivind Exp $
* $Id: syscons.c,v 1.248 1998/02/11 14:56:02 yokota Exp $
*/
#include "sc.h"
@ -240,11 +240,13 @@ static char *get_mode_param(scr_stat *scp, u_char mode);
static u_int scgetc(u_int flags);
#define SCGETC_CN 1
#define SCGETC_NONBLOCK 2
static void sccnupdate(scr_stat *scp);
static scr_stat *get_scr_stat(dev_t dev);
static scr_stat *alloc_scp(void);
static void init_scp(scr_stat *scp);
static int get_scr_num(void);
static timeout_t scrn_timer;
static void scrn_update(scr_stat *scp, int show_cursor);
static void stop_scrn_saver(void (*saver)(int));
static void clear_screen(scr_stat *scp);
static int switch_scr(scr_stat *scp, u_int next_scr);
@ -2109,17 +2111,9 @@ sccnputc(dev_t dev, int c)
kernel_console = scp->term;
current_default = &user_default;
scp->term = save;
s = splclock();
if (scp == cur_console && !(scp->status & UNKNOWN_MODE)) {
if (/* timer not running && */ (scp->start <= scp->end)) {
sc_bcopy(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
scp->start = scp->xsize * scp->ysize;
scp->end = 0;
}
scp->cursor_oldpos = scp->cursor_pos;
draw_cursor_image(scp);
}
s = spltty(); /* block scintr and scrn_timer */
sccnupdate(scp);
splx(s);
}
@ -2130,16 +2124,12 @@ sccngetc(dev_t dev)
int c;
/*
* Stop the screen saver if necessary.
* Stop the screen saver and update the screen if necessary.
* What if we have been running in the screen saver code... XXX
*/
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
sccnupdate(cur_console);
c = scgetc(SCGETC_CN);
/* make sure the screen saver won't be activated soon */
scrn_time_stamp = mono_time.tv_sec;
splx(s);
return(c);
}
@ -2147,18 +2137,27 @@ sccngetc(dev_t dev)
int
sccncheckc(dev_t dev)
{
int c, s;
int s = spltty(); /* block scintr and scrn_timer while we poll */
int c;
s = spltty();
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
sccnupdate(cur_console);
c = scgetc(SCGETC_CN | SCGETC_NONBLOCK);
if (c != NOKEY)
scrn_time_stamp = mono_time.tv_sec;
splx(s);
return(c == NOKEY ? -1 : c); /* c == -1 can't happen */
}
static void
sccnupdate(scr_stat *scp)
{
if (scp == cur_console) {
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
if (!(scp->status & UNKNOWN_MODE) && scrn_blanked <= 0
&& !blink_in_progress && !switch_in_progress)
scrn_update(scp, TRUE);
}
}
static scr_stat
*get_scr_stat(dev_t dev)
{
@ -2224,67 +2223,9 @@ scrn_timer(void *arg)
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
if (scrn_blanked <= 0) {
/* update screen image */
if (scp->start <= scp->end) {
sc_bcopy(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
}
/* update "pseudo" mouse pointer image */
if ((scp->status & MOUSE_VISIBLE) && crtc_vga) {
/* did mouse move since last time ? */
if (scp->status & MOUSE_MOVED) {
/* do we need to remove old mouse pointer image ? */
if (scp->mouse_cut_start != NULL ||
(scp->mouse_pos-scp->scr_buf) <= scp->start ||
(scp->mouse_pos+scp->xsize+1-scp->scr_buf) >= scp->end) {
remove_mouse_image(scp);
}
scp->status &= ~MOUSE_MOVED;
draw_mouse_image(scp);
}
else {
/* mouse didn't move, has it been overwritten ? */
if ((scp->mouse_pos+scp->xsize+1-scp->scr_buf) >= scp->start &&
(scp->mouse_pos - scp->scr_buf) <= scp->end) {
draw_mouse_image(scp);
}
}
}
/* update cursor image */
if (scp->status & CURSOR_ENABLED) {
/* did cursor move since last time ? */
if (scp->cursor_pos != scp->cursor_oldpos) {
/* do we need to remove old cursor image ? */
if ((scp->cursor_oldpos - scp->scr_buf) < scp->start ||
((scp->cursor_oldpos - scp->scr_buf) > scp->end)) {
remove_cursor_image(scp);
}
scp->cursor_oldpos = scp->cursor_pos;
draw_cursor_image(scp);
}
else {
/* cursor didn't move, has it been overwritten ? */
if (scp->cursor_pos - scp->scr_buf >= scp->start &&
scp->cursor_pos - scp->scr_buf <= scp->end) {
draw_cursor_image(scp);
} else {
/* if its a blinking cursor, we may have to update it */
if (flags & BLINK_CURSOR)
draw_cursor_image(scp);
}
}
blinkrate++;
}
if (scp->mouse_cut_start != NULL)
draw_cutmarking(scp);
scp->end = 0;
scp->start = scp->xsize*scp->ysize;
}
scp = cur_console;
if (scrn_blanked <= 0)
scrn_update(scp, TRUE);
/* should we activate the screen saver? */
if ((scrn_blank_time != 0)
@ -2295,6 +2236,77 @@ scrn_timer(void *arg)
splx(s);
}
static void
scrn_update(scr_stat *scp, int show_cursor)
{
/* update screen image */
if (scp->start <= scp->end) {
sc_bcopy(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
}
/* we are not to show the cursor and the mouse pointer... */
if (!show_cursor) {
scp->end = 0;
scp->start = scp->xsize*scp->ysize;
return;
}
/* update "pseudo" mouse pointer image */
if ((scp->status & MOUSE_VISIBLE) && (crtc_type == KD_VGA)) {
/* did mouse move since last time ? */
if (scp->status & MOUSE_MOVED) {
/* do we need to remove old mouse pointer image ? */
if (scp->mouse_cut_start != NULL ||
(scp->mouse_pos-scp->scr_buf) <= scp->start ||
(scp->mouse_pos+scp->xsize + 1 - scp->scr_buf) >= scp->end) {
remove_mouse_image(scp);
}
scp->status &= ~MOUSE_MOVED;
draw_mouse_image(scp);
}
else {
/* mouse didn't move, has it been overwritten ? */
if ((scp->mouse_pos+scp->xsize + 1 - scp->scr_buf) >= scp->start &&
(scp->mouse_pos - scp->scr_buf) <= scp->end) {
draw_mouse_image(scp);
}
}
}
/* update cursor image */
if (scp->status & CURSOR_ENABLED) {
/* did cursor move since last time ? */
if (scp->cursor_pos != scp->cursor_oldpos) {
/* do we need to remove old cursor image ? */
if ((scp->cursor_oldpos - scp->scr_buf) < scp->start ||
((scp->cursor_oldpos - scp->scr_buf) > scp->end)) {
remove_cursor_image(scp);
}
scp->cursor_oldpos = scp->cursor_pos;
draw_cursor_image(scp);
}
else {
/* cursor didn't move, has it been overwritten ? */
if (scp->cursor_pos - scp->scr_buf >= scp->start &&
scp->cursor_pos - scp->scr_buf <= scp->end) {
draw_cursor_image(scp);
} else {
/* if its a blinking cursor, we may have to update it */
if (flags & BLINK_CURSOR)
draw_cursor_image(scp);
}
}
blinkrate++;
}
if (scp->mouse_cut_start != NULL)
draw_cutmarking(scp);
scp->end = 0;
scp->start = scp->xsize*scp->ysize;
}
int
add_scrn_saver(void (*this_saver)(int))
{

View File

@ -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.c,v 1.247 1998/01/24 02:54:26 eivind Exp $
* $Id: syscons.c,v 1.248 1998/02/11 14:56:02 yokota Exp $
*/
#include "sc.h"
@ -240,11 +240,13 @@ static char *get_mode_param(scr_stat *scp, u_char mode);
static u_int scgetc(u_int flags);
#define SCGETC_CN 1
#define SCGETC_NONBLOCK 2
static void sccnupdate(scr_stat *scp);
static scr_stat *get_scr_stat(dev_t dev);
static scr_stat *alloc_scp(void);
static void init_scp(scr_stat *scp);
static int get_scr_num(void);
static timeout_t scrn_timer;
static void scrn_update(scr_stat *scp, int show_cursor);
static void stop_scrn_saver(void (*saver)(int));
static void clear_screen(scr_stat *scp);
static int switch_scr(scr_stat *scp, u_int next_scr);
@ -2109,17 +2111,9 @@ sccnputc(dev_t dev, int c)
kernel_console = scp->term;
current_default = &user_default;
scp->term = save;
s = splclock();
if (scp == cur_console && !(scp->status & UNKNOWN_MODE)) {
if (/* timer not running && */ (scp->start <= scp->end)) {
sc_bcopy(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
scp->start = scp->xsize * scp->ysize;
scp->end = 0;
}
scp->cursor_oldpos = scp->cursor_pos;
draw_cursor_image(scp);
}
s = spltty(); /* block scintr and scrn_timer */
sccnupdate(scp);
splx(s);
}
@ -2130,16 +2124,12 @@ sccngetc(dev_t dev)
int c;
/*
* Stop the screen saver if necessary.
* Stop the screen saver and update the screen if necessary.
* What if we have been running in the screen saver code... XXX
*/
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
sccnupdate(cur_console);
c = scgetc(SCGETC_CN);
/* make sure the screen saver won't be activated soon */
scrn_time_stamp = mono_time.tv_sec;
splx(s);
return(c);
}
@ -2147,18 +2137,27 @@ sccngetc(dev_t dev)
int
sccncheckc(dev_t dev)
{
int c, s;
int s = spltty(); /* block scintr and scrn_timer while we poll */
int c;
s = spltty();
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
sccnupdate(cur_console);
c = scgetc(SCGETC_CN | SCGETC_NONBLOCK);
if (c != NOKEY)
scrn_time_stamp = mono_time.tv_sec;
splx(s);
return(c == NOKEY ? -1 : c); /* c == -1 can't happen */
}
static void
sccnupdate(scr_stat *scp)
{
if (scp == cur_console) {
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
if (!(scp->status & UNKNOWN_MODE) && scrn_blanked <= 0
&& !blink_in_progress && !switch_in_progress)
scrn_update(scp, TRUE);
}
}
static scr_stat
*get_scr_stat(dev_t dev)
{
@ -2224,67 +2223,9 @@ scrn_timer(void *arg)
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
if (scrn_blanked <= 0) {
/* update screen image */
if (scp->start <= scp->end) {
sc_bcopy(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
}
/* update "pseudo" mouse pointer image */
if ((scp->status & MOUSE_VISIBLE) && crtc_vga) {
/* did mouse move since last time ? */
if (scp->status & MOUSE_MOVED) {
/* do we need to remove old mouse pointer image ? */
if (scp->mouse_cut_start != NULL ||
(scp->mouse_pos-scp->scr_buf) <= scp->start ||
(scp->mouse_pos+scp->xsize+1-scp->scr_buf) >= scp->end) {
remove_mouse_image(scp);
}
scp->status &= ~MOUSE_MOVED;
draw_mouse_image(scp);
}
else {
/* mouse didn't move, has it been overwritten ? */
if ((scp->mouse_pos+scp->xsize+1-scp->scr_buf) >= scp->start &&
(scp->mouse_pos - scp->scr_buf) <= scp->end) {
draw_mouse_image(scp);
}
}
}
/* update cursor image */
if (scp->status & CURSOR_ENABLED) {
/* did cursor move since last time ? */
if (scp->cursor_pos != scp->cursor_oldpos) {
/* do we need to remove old cursor image ? */
if ((scp->cursor_oldpos - scp->scr_buf) < scp->start ||
((scp->cursor_oldpos - scp->scr_buf) > scp->end)) {
remove_cursor_image(scp);
}
scp->cursor_oldpos = scp->cursor_pos;
draw_cursor_image(scp);
}
else {
/* cursor didn't move, has it been overwritten ? */
if (scp->cursor_pos - scp->scr_buf >= scp->start &&
scp->cursor_pos - scp->scr_buf <= scp->end) {
draw_cursor_image(scp);
} else {
/* if its a blinking cursor, we may have to update it */
if (flags & BLINK_CURSOR)
draw_cursor_image(scp);
}
}
blinkrate++;
}
if (scp->mouse_cut_start != NULL)
draw_cutmarking(scp);
scp->end = 0;
scp->start = scp->xsize*scp->ysize;
}
scp = cur_console;
if (scrn_blanked <= 0)
scrn_update(scp, TRUE);
/* should we activate the screen saver? */
if ((scrn_blank_time != 0)
@ -2295,6 +2236,77 @@ scrn_timer(void *arg)
splx(s);
}
static void
scrn_update(scr_stat *scp, int show_cursor)
{
/* update screen image */
if (scp->start <= scp->end) {
sc_bcopy(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
}
/* we are not to show the cursor and the mouse pointer... */
if (!show_cursor) {
scp->end = 0;
scp->start = scp->xsize*scp->ysize;
return;
}
/* update "pseudo" mouse pointer image */
if ((scp->status & MOUSE_VISIBLE) && (crtc_type == KD_VGA)) {
/* did mouse move since last time ? */
if (scp->status & MOUSE_MOVED) {
/* do we need to remove old mouse pointer image ? */
if (scp->mouse_cut_start != NULL ||
(scp->mouse_pos-scp->scr_buf) <= scp->start ||
(scp->mouse_pos+scp->xsize + 1 - scp->scr_buf) >= scp->end) {
remove_mouse_image(scp);
}
scp->status &= ~MOUSE_MOVED;
draw_mouse_image(scp);
}
else {
/* mouse didn't move, has it been overwritten ? */
if ((scp->mouse_pos+scp->xsize + 1 - scp->scr_buf) >= scp->start &&
(scp->mouse_pos - scp->scr_buf) <= scp->end) {
draw_mouse_image(scp);
}
}
}
/* update cursor image */
if (scp->status & CURSOR_ENABLED) {
/* did cursor move since last time ? */
if (scp->cursor_pos != scp->cursor_oldpos) {
/* do we need to remove old cursor image ? */
if ((scp->cursor_oldpos - scp->scr_buf) < scp->start ||
((scp->cursor_oldpos - scp->scr_buf) > scp->end)) {
remove_cursor_image(scp);
}
scp->cursor_oldpos = scp->cursor_pos;
draw_cursor_image(scp);
}
else {
/* cursor didn't move, has it been overwritten ? */
if (scp->cursor_pos - scp->scr_buf >= scp->start &&
scp->cursor_pos - scp->scr_buf <= scp->end) {
draw_cursor_image(scp);
} else {
/* if its a blinking cursor, we may have to update it */
if (flags & BLINK_CURSOR)
draw_cursor_image(scp);
}
}
blinkrate++;
}
if (scp->mouse_cut_start != NULL)
draw_cutmarking(scp);
scp->end = 0;
scp->start = scp->xsize*scp->ysize;
}
int
add_scrn_saver(void (*this_saver)(int))
{

View File

@ -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.c,v 1.247 1998/01/24 02:54:26 eivind Exp $
* $Id: syscons.c,v 1.248 1998/02/11 14:56:02 yokota Exp $
*/
#include "sc.h"
@ -240,11 +240,13 @@ static char *get_mode_param(scr_stat *scp, u_char mode);
static u_int scgetc(u_int flags);
#define SCGETC_CN 1
#define SCGETC_NONBLOCK 2
static void sccnupdate(scr_stat *scp);
static scr_stat *get_scr_stat(dev_t dev);
static scr_stat *alloc_scp(void);
static void init_scp(scr_stat *scp);
static int get_scr_num(void);
static timeout_t scrn_timer;
static void scrn_update(scr_stat *scp, int show_cursor);
static void stop_scrn_saver(void (*saver)(int));
static void clear_screen(scr_stat *scp);
static int switch_scr(scr_stat *scp, u_int next_scr);
@ -2109,17 +2111,9 @@ sccnputc(dev_t dev, int c)
kernel_console = scp->term;
current_default = &user_default;
scp->term = save;
s = splclock();
if (scp == cur_console && !(scp->status & UNKNOWN_MODE)) {
if (/* timer not running && */ (scp->start <= scp->end)) {
sc_bcopy(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
scp->start = scp->xsize * scp->ysize;
scp->end = 0;
}
scp->cursor_oldpos = scp->cursor_pos;
draw_cursor_image(scp);
}
s = spltty(); /* block scintr and scrn_timer */
sccnupdate(scp);
splx(s);
}
@ -2130,16 +2124,12 @@ sccngetc(dev_t dev)
int c;
/*
* Stop the screen saver if necessary.
* Stop the screen saver and update the screen if necessary.
* What if we have been running in the screen saver code... XXX
*/
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
sccnupdate(cur_console);
c = scgetc(SCGETC_CN);
/* make sure the screen saver won't be activated soon */
scrn_time_stamp = mono_time.tv_sec;
splx(s);
return(c);
}
@ -2147,18 +2137,27 @@ sccngetc(dev_t dev)
int
sccncheckc(dev_t dev)
{
int c, s;
int s = spltty(); /* block scintr and scrn_timer while we poll */
int c;
s = spltty();
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
sccnupdate(cur_console);
c = scgetc(SCGETC_CN | SCGETC_NONBLOCK);
if (c != NOKEY)
scrn_time_stamp = mono_time.tv_sec;
splx(s);
return(c == NOKEY ? -1 : c); /* c == -1 can't happen */
}
static void
sccnupdate(scr_stat *scp)
{
if (scp == cur_console) {
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
if (!(scp->status & UNKNOWN_MODE) && scrn_blanked <= 0
&& !blink_in_progress && !switch_in_progress)
scrn_update(scp, TRUE);
}
}
static scr_stat
*get_scr_stat(dev_t dev)
{
@ -2224,67 +2223,9 @@ scrn_timer(void *arg)
if (scrn_blanked > 0)
stop_scrn_saver(current_saver);
if (scrn_blanked <= 0) {
/* update screen image */
if (scp->start <= scp->end) {
sc_bcopy(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
}
/* update "pseudo" mouse pointer image */
if ((scp->status & MOUSE_VISIBLE) && crtc_vga) {
/* did mouse move since last time ? */
if (scp->status & MOUSE_MOVED) {
/* do we need to remove old mouse pointer image ? */
if (scp->mouse_cut_start != NULL ||
(scp->mouse_pos-scp->scr_buf) <= scp->start ||
(scp->mouse_pos+scp->xsize+1-scp->scr_buf) >= scp->end) {
remove_mouse_image(scp);
}
scp->status &= ~MOUSE_MOVED;
draw_mouse_image(scp);
}
else {
/* mouse didn't move, has it been overwritten ? */
if ((scp->mouse_pos+scp->xsize+1-scp->scr_buf) >= scp->start &&
(scp->mouse_pos - scp->scr_buf) <= scp->end) {
draw_mouse_image(scp);
}
}
}
/* update cursor image */
if (scp->status & CURSOR_ENABLED) {
/* did cursor move since last time ? */
if (scp->cursor_pos != scp->cursor_oldpos) {
/* do we need to remove old cursor image ? */
if ((scp->cursor_oldpos - scp->scr_buf) < scp->start ||
((scp->cursor_oldpos - scp->scr_buf) > scp->end)) {
remove_cursor_image(scp);
}
scp->cursor_oldpos = scp->cursor_pos;
draw_cursor_image(scp);
}
else {
/* cursor didn't move, has it been overwritten ? */
if (scp->cursor_pos - scp->scr_buf >= scp->start &&
scp->cursor_pos - scp->scr_buf <= scp->end) {
draw_cursor_image(scp);
} else {
/* if its a blinking cursor, we may have to update it */
if (flags & BLINK_CURSOR)
draw_cursor_image(scp);
}
}
blinkrate++;
}
if (scp->mouse_cut_start != NULL)
draw_cutmarking(scp);
scp->end = 0;
scp->start = scp->xsize*scp->ysize;
}
scp = cur_console;
if (scrn_blanked <= 0)
scrn_update(scp, TRUE);
/* should we activate the screen saver? */
if ((scrn_blank_time != 0)
@ -2295,6 +2236,77 @@ scrn_timer(void *arg)
splx(s);
}
static void
scrn_update(scr_stat *scp, int show_cursor)
{
/* update screen image */
if (scp->start <= scp->end) {
sc_bcopy(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
}
/* we are not to show the cursor and the mouse pointer... */
if (!show_cursor) {
scp->end = 0;
scp->start = scp->xsize*scp->ysize;
return;
}
/* update "pseudo" mouse pointer image */
if ((scp->status & MOUSE_VISIBLE) && (crtc_type == KD_VGA)) {
/* did mouse move since last time ? */
if (scp->status & MOUSE_MOVED) {
/* do we need to remove old mouse pointer image ? */
if (scp->mouse_cut_start != NULL ||
(scp->mouse_pos-scp->scr_buf) <= scp->start ||
(scp->mouse_pos+scp->xsize + 1 - scp->scr_buf) >= scp->end) {
remove_mouse_image(scp);
}
scp->status &= ~MOUSE_MOVED;
draw_mouse_image(scp);
}
else {
/* mouse didn't move, has it been overwritten ? */
if ((scp->mouse_pos+scp->xsize + 1 - scp->scr_buf) >= scp->start &&
(scp->mouse_pos - scp->scr_buf) <= scp->end) {
draw_mouse_image(scp);
}
}
}
/* update cursor image */
if (scp->status & CURSOR_ENABLED) {
/* did cursor move since last time ? */
if (scp->cursor_pos != scp->cursor_oldpos) {
/* do we need to remove old cursor image ? */
if ((scp->cursor_oldpos - scp->scr_buf) < scp->start ||
((scp->cursor_oldpos - scp->scr_buf) > scp->end)) {
remove_cursor_image(scp);
}
scp->cursor_oldpos = scp->cursor_pos;
draw_cursor_image(scp);
}
else {
/* cursor didn't move, has it been overwritten ? */
if (scp->cursor_pos - scp->scr_buf >= scp->start &&
scp->cursor_pos - scp->scr_buf <= scp->end) {
draw_cursor_image(scp);
} else {
/* if its a blinking cursor, we may have to update it */
if (flags & BLINK_CURSOR)
draw_cursor_image(scp);
}
}
blinkrate++;
}
if (scp->mouse_cut_start != NULL)
draw_cutmarking(scp);
scp->end = 0;
scp->start = scp->xsize*scp->ysize;
}
int
add_scrn_saver(void (*this_saver)(int))
{