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Commit 2b62ba58 authored by Sven Schnelle's avatar Sven Schnelle Committed by Heiko Carstens
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s390/con3270: move tty3270_convert_line() 

To make the upcoming patches easier to read, move tty3270_convert_line()
before changing code. No functional change.
Signed-off-by: default avatarSven Schnelle <svens@linux.ibm.com>
Acked-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Tested-by: default avatarNiklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent f77f936a
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Showing with 162 additions and 162 deletions
drivers/s390/char/con3270.c
View file @ 2b62ba58
......@@ -362,6 +362,168 @@ static void tty3270_write_callback(struct raw3270_request *rq, void *data)
xchg(&tp->write, rq);
}
static int tty3270_required_length(struct tty3270 *tp, int line_nr)
{
unsigned char f_color, b_color, highlight;
struct tty3270_line *line;
struct tty3270_cell *cell;
int i, flen = 3; /* Prefix (TO_SBA). */
line = tp->screen + line_nr;
flen += line->len;
highlight = TAX_RESET;
f_color = TAC_RESET;
b_color = TAC_RESET;
for (i = 0, cell = line->cells; i < line->len; i++, cell++) {
if (cell->attributes.highlight != highlight) {
flen += 3; /* TO_SA to switch highlight. */
highlight = cell->attributes.highlight;
}
if (cell->attributes.f_color != f_color) {
flen += 3; /* TO_SA to switch color. */
f_color = cell->attributes.f_color;
}
if (cell->attributes.b_color != b_color) {
flen += 3; /* TO_SA to switch color. */
b_color = cell->attributes.b_color;
}
if (cell->attributes.alternate_charset)
flen += 1; /* TO_GE to switch to graphics extensions */
}
if (highlight != TAX_RESET)
flen += 3; /* TO_SA to reset hightlight. */
if (f_color != TAC_RESET)
flen += 3; /* TO_SA to reset color. */
if (b_color != TAC_RESET)
flen += 3; /* TO_SA to reset color. */
if (line->len < tp->view.cols)
flen += 4; /* Postfix (TO_RA). */
return flen;
}
static char *tty3270_add_reset_attributes(struct tty3270 *tp, struct tty3270_line *line,
char *cp, struct tty3270_attribute *attr)
{
if (attr->highlight != TAX_RESET) {
*cp++ = TO_SA;
*cp++ = TAT_EXTHI;
*cp++ = TAX_RESET;
}
if (attr->f_color != TAC_RESET) {
*cp++ = TO_SA;
*cp++ = TAT_FGCOLOR;
*cp++ = TAC_RESET;
}
if (attr->b_color != TAC_RESET) {
*cp++ = TO_SA;
*cp++ = TAT_BGCOLOR;
*cp++ = TAC_RESET;
}
if (line->len < tp->view.cols) {
*cp++ = TO_RA;
*cp++ = 0;
*cp++ = 0;
*cp++ = 0;
}
return cp;
}
static char *tty3270_add_attributes(struct tty3270_line *line, struct tty3270_attribute *attr,
char *cp)
{
struct tty3270_cell *cell;
int i;
*cp++ = TO_SBA;
*cp++ = 0;
*cp++ = 0;
for (i = 0, cell = line->cells; i < line->len; i++, cell++) {
if (cell->attributes.highlight != attr->highlight) {
*cp++ = TO_SA;
*cp++ = TAT_EXTHI;
*cp++ = cell->attributes.highlight;
attr->highlight = cell->attributes.highlight;
}
if (cell->attributes.f_color != attr->f_color) {
*cp++ = TO_SA;
*cp++ = TAT_FGCOLOR;
*cp++ = cell->attributes.f_color;
attr->f_color = cell->attributes.f_color;
}
if (cell->attributes.b_color != attr->b_color) {
*cp++ = TO_SA;
*cp++ = TAT_BGCOLOR;
*cp++ = cell->attributes.b_color;
attr->b_color = cell->attributes.b_color;
}
if (cell->attributes.alternate_charset)
*cp++ = TO_GE;
*cp++ = cell->character;
}
return cp;
}
static void tty3270_reset_attributes(struct tty3270_attribute *attr)
{
attr->highlight = TAX_RESET;
attr->f_color = TAC_RESET;
attr->b_color = TAC_RESET;
}
static struct string *tty3270_resize_line(struct tty3270 *tp, struct string *s, int newlen)
{
struct string *n = tty3270_alloc_string(tp, newlen);
list_add(&n->list, &s->list);
list_del_init(&s->list);
if (!list_empty(&s->update))
list_del_init(&s->update);
free_string(&tp->freemem, s);
return n;
}
/*
* Convert a tty3270_line to a 3270 data fragment usable for output.
*/
static void tty3270_convert_line(struct tty3270 *tp, int line_nr)
{
struct tty3270_line *line = tp->screen + line_nr;
struct tty3270_attribute attr;
struct string *s;
int flen, i;
char *cp;
/* Determine how long the fragment will be. */
flen = tty3270_required_length(tp, line_nr);
/* Find the line in the list. */
i = tty3270_tty_rows(tp) - line_nr;
list_for_each_entry_reverse(s, &tp->lines, list)
if (--i <= 0)
break;
/*
* Check if the line needs to get reallocated.
*/
if (s->len != flen)
s = tty3270_resize_line(tp, s, flen);
/* Write 3270 data fragment. */
tty3270_reset_attributes(&attr);
cp = tty3270_add_attributes(line, &attr, s->string);
cp = tty3270_add_reset_attributes(tp, line, cp, &attr);
if (tp->nr_up + line_nr < tty3270_tty_rows(tp)) {
/* Line is currently visible on screen. */
tty3270_update_string(tp, s, line_nr);
/* Add line to update list. */
if (list_empty(&s->update)) {
list_add_tail(&s->update, &tp->update);
tp->update_flags |= TTY_UPDATE_LIST;
}
}
}
/*
* Update 3270 display.
*/
......@@ -1109,18 +1271,6 @@ static char tty3270_graphics_translate(struct tty3270 *tp, char ch)
}
}
static struct string *tty3270_resize_line(struct tty3270 *tp, struct string *s, int newlen)
{
struct string *n = tty3270_alloc_string(tp, newlen);
list_add(&n->list, &s->list);
list_del_init(&s->list);
if (!list_empty(&s->update))
list_del_init(&s->update);
free_string(&tp->freemem, s);
return n;
}
/*
* Insert character into the screen at the current position with the
* current color and highlight. This function does NOT do cursor movement.
......@@ -1148,156 +1298,6 @@ static void tty3270_put_character(struct tty3270 *tp, char ch)
cell->attributes = tp->attributes;
}
static int tty3270_required_length(struct tty3270 *tp, int line_nr)
{
unsigned char f_color, b_color, highlight;
struct tty3270_line *line;
struct tty3270_cell *cell;
int i, flen = 3; /* Prefix (TO_SBA). */
line = tp->screen + line_nr;
flen += line->len;
highlight = TAX_RESET;
f_color = TAC_RESET;
b_color = TAC_RESET;
for (i = 0, cell = line->cells; i < line->len; i++, cell++) {
if (cell->attributes.highlight != highlight) {
flen += 3; /* TO_SA to switch highlight. */
highlight = cell->attributes.highlight;
}
if (cell->attributes.f_color != f_color) {
flen += 3; /* TO_SA to switch color. */
f_color = cell->attributes.f_color;
}
if (cell->attributes.b_color != b_color) {
flen += 3; /* TO_SA to switch color. */
b_color = cell->attributes.b_color;
}
if (cell->attributes.alternate_charset)
flen += 1; /* TO_GE to switch to graphics extensions */
}
if (highlight != TAX_RESET)
flen += 3; /* TO_SA to reset hightlight. */
if (f_color != TAC_RESET)
flen += 3; /* TO_SA to reset color. */
if (b_color != TAC_RESET)
flen += 3; /* TO_SA to reset color. */
if (line->len < tp->view.cols)
flen += 4; /* Postfix (TO_RA). */
return flen;
}
static char *tty3270_add_reset_attributes(struct tty3270 *tp, struct tty3270_line *line,
char *cp, struct tty3270_attribute *attr)
{
if (attr->highlight != TAX_RESET) {
*cp++ = TO_SA;
*cp++ = TAT_EXTHI;
*cp++ = TAX_RESET;
}
if (attr->f_color != TAC_RESET) {
*cp++ = TO_SA;
*cp++ = TAT_FGCOLOR;
*cp++ = TAC_RESET;
}
if (attr->b_color != TAC_RESET) {
*cp++ = TO_SA;
*cp++ = TAT_BGCOLOR;
*cp++ = TAC_RESET;
}
if (line->len < tp->view.cols) {
*cp++ = TO_RA;
*cp++ = 0;
*cp++ = 0;
*cp++ = 0;
}
return cp;
}
static char *tty3270_add_attributes(struct tty3270_line *line, struct tty3270_attribute *attr,
char *cp)
{
struct tty3270_cell *cell;
int i;
*cp++ = TO_SBA;
*cp++ = 0;
*cp++ = 0;
for (i = 0, cell = line->cells; i < line->len; i++, cell++) {
if (cell->attributes.highlight != attr->highlight) {
*cp++ = TO_SA;
*cp++ = TAT_EXTHI;
*cp++ = cell->attributes.highlight;
attr->highlight = cell->attributes.highlight;
}
if (cell->attributes.f_color != attr->f_color) {
*cp++ = TO_SA;
*cp++ = TAT_FGCOLOR;
*cp++ = cell->attributes.f_color;
attr->f_color = cell->attributes.f_color;
}
if (cell->attributes.b_color != attr->b_color) {
*cp++ = TO_SA;
*cp++ = TAT_BGCOLOR;
*cp++ = cell->attributes.b_color;
attr->b_color = cell->attributes.b_color;
}
if (cell->attributes.alternate_charset)
*cp++ = TO_GE;
*cp++ = cell->character;
}
return cp;
}
static void tty3270_reset_attributes(struct tty3270_attribute *attr)
{
attr->highlight = TAX_RESET;
attr->f_color = TAC_RESET;
attr->b_color = TAC_RESET;
}
/*
* Convert a tty3270_line to a 3270 data fragment usable for output.
*/
static void tty3270_convert_line(struct tty3270 *tp, int line_nr)
{
struct tty3270_line *line = tp->screen + line_nr;
struct tty3270_attribute attr;
struct string *s;
int flen, i;
char *cp;
/* Determine how long the fragment will be. */
flen = tty3270_required_length(tp, line_nr);
/* Find the line in the list. */
i = tty3270_tty_rows(tp) - line_nr;
list_for_each_entry_reverse(s, &tp->lines, list)
if (--i <= 0)
break;
/*
* Check if the line needs to get reallocated.
*/
if (s->len != flen)
s = tty3270_resize_line(tp, s, flen);
/* Write 3270 data fragment. */
tty3270_reset_attributes(&attr);
cp = tty3270_add_attributes(line, &attr, s->string);
cp = tty3270_add_reset_attributes(tp, line, cp, &attr);
if (tp->nr_up + line_nr < tty3270_tty_rows(tp)) {
/* Line is currently visible on screen. */
tty3270_update_string(tp, s, line_nr);
/* Add line to update list. */
if (list_empty(&s->update)) {
list_add_tail(&s->update, &tp->update);
tp->update_flags |= TTY_UPDATE_LIST;
}
}
}
/*
* Do carriage return.
*/
......
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