From: Jiri Slaby <jslaby@suse.cz>
To: gregkh@linuxfoundation.org
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
Jiri Slaby <jslaby@suse.cz>
Subject: [PATCH 17/38] vc: introduce struct vc_draw_region
Date: Mon, 15 Jun 2020 09:48:49 +0200 [thread overview]
Message-ID: <20200615074910.19267-17-jslaby@suse.cz> (raw)
In-Reply-To: <20200615074910.19267-1-jslaby@suse.cz>
For passing of draw area among functions. This makes next patches
simpler.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/tty/vt/vt.c | 44 +++++++++++++++++++++++++-------------------
1 file changed, 25 insertions(+), 19 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 0f61dc360067..0c663054ab79 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2549,15 +2549,20 @@ static int is_double_width(uint32_t ucs)
sizeof(struct interval), ucs_cmp) != NULL;
}
-static void con_flush(struct vc_data *vc, unsigned long draw_from,
- unsigned long draw_to, int *draw_x)
+struct vc_draw_region {
+ unsigned long from, to;
+ int x;
+};
+
+static void con_flush(struct vc_data *vc, struct vc_draw_region *draw)
{
- if (*draw_x < 0)
+ if (draw->x < 0)
return;
- vc->vc_sw->con_putcs(vc, (u16 *)draw_from,
- (u16 *)draw_to - (u16 *)draw_from, vc->state.y, *draw_x);
- *draw_x = -1;
+ vc->vc_sw->con_putcs(vc, (u16 *)draw->from,
+ (u16 *)draw->to - (u16 *)draw->from, vc->state.y,
+ draw->x);
+ draw->x = -1;
}
static inline int vc_translate_ascii(const struct vc_data *vc, int c)
@@ -2689,9 +2694,11 @@ static inline unsigned char vc_invert_attr(const struct vc_data *vc)
/* acquires console_lock */
static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int count)
{
- int c, next_c, tc, ok, n = 0, draw_x = -1;
+ struct vc_draw_region draw = {
+ .x = -1,
+ };
+ int c, next_c, tc, ok, n = 0;
unsigned int currcons;
- unsigned long draw_from = 0, draw_to = 0;
struct vc_data *vc;
unsigned char vc_attr;
struct vt_notifier_param param;
@@ -2798,14 +2805,13 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co
vc_attr = vc->vc_attr;
} else {
vc_attr = vc_invert_attr(vc);
- con_flush(vc, draw_from, draw_to, &draw_x);
+ con_flush(vc, &draw);
}
next_c = c;
while (1) {
if (vc->vc_need_wrap || vc->vc_decim)
- con_flush(vc, draw_from, draw_to,
- &draw_x);
+ con_flush(vc, &draw);
if (vc->vc_need_wrap) {
cr(vc);
lf(vc);
@@ -2817,16 +2823,16 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co
((vc_attr << 8) & ~himask) + ((tc & 0x100) ? himask : 0) + (tc & 0xff) :
(vc_attr << 8) + tc,
(u16 *) vc->vc_pos);
- if (con_should_update(vc) && draw_x < 0) {
- draw_x = vc->state.x;
- draw_from = vc->vc_pos;
+ if (con_should_update(vc) && draw.x < 0) {
+ draw.x = vc->state.x;
+ draw.from = vc->vc_pos;
}
if (vc->state.x == vc->vc_cols - 1) {
vc->vc_need_wrap = vc->vc_decawm;
- draw_to = vc->vc_pos + 2;
+ draw.to = vc->vc_pos + 2;
} else {
vc->state.x++;
- draw_to = (vc->vc_pos += 2);
+ draw.to = (vc->vc_pos += 2);
}
if (!--width) break;
@@ -2838,17 +2844,17 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co
notify_write(vc, c);
if (inverse)
- con_flush(vc, draw_from, draw_to, &draw_x);
+ con_flush(vc, &draw);
if (rescan)
goto rescan_last_byte;
continue;
}
- con_flush(vc, draw_from, draw_to, &draw_x);
+ con_flush(vc, &draw);
do_con_trol(tty, vc, orig);
}
- con_flush(vc, draw_from, draw_to, &draw_x);
+ con_flush(vc, &draw);
vc_uniscr_debug_check(vc);
console_conditional_schedule();
notify_update(vc);
--
2.27.0
next prev parent reply other threads:[~2020-06-15 7:50 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-15 7:48 [PATCH 01/38] vc: separate state Jiri Slaby
2020-06-15 7:48 ` [PATCH 02/38] vt: introduce enum vc_intensity for intensity Jiri Slaby
2020-06-15 7:48 ` [PATCH 03/38] vc: switch state to bool Jiri Slaby
2020-06-15 7:48 ` [PATCH 04/38] vt: deduplicate setGx code Jiri Slaby
2020-06-15 7:48 ` [PATCH 05/38] vt: switch G0/1_charset to an array Jiri Slaby
2020-06-15 7:48 ` [PATCH 06/38] vt: convert vc_tab_stop to bitmap Jiri Slaby
2020-06-15 7:48 ` [PATCH 07/38] vt: remove 25 years stale comment Jiri Slaby
2020-06-15 7:48 ` [PATCH 08/38] vt: use tty_insert_flip_string in respond_string Jiri Slaby
2020-06-15 7:48 ` [PATCH 09/38] vt: get rid of VT10.ID macros Jiri Slaby
2020-06-15 7:48 ` [PATCH 10/38] vt: move vc_translate to vt.c and rename it Jiri Slaby
2020-06-15 7:48 ` [PATCH 11/38] vt: use modern types in do_con_write Jiri Slaby
2020-06-15 7:48 ` [PATCH 12/38] vt: separate unicode handling into vc_translate_unicode Jiri Slaby
2020-06-15 7:48 ` [PATCH 13/38] vt: rearrange vc_translate_unicode Jiri Slaby
2020-06-15 7:48 ` [PATCH 14/38] vt: extract attribute inversion to vc_invert_attr Jiri Slaby
2020-06-15 7:48 ` [PATCH 15/38] vt: move rescan_last_byte label earlier Jiri Slaby
2020-06-15 7:48 ` [PATCH 16/38] vc: move translation out of do_con_write Jiri Slaby
2020-06-15 7:48 ` Jiri Slaby [this message]
2020-06-15 7:48 ` [PATCH 18/38] vc: extract detecting control characters from do_con_write Jiri Slaby
2020-06-15 7:48 ` [PATCH 19/38] vc: move normal char processing " Jiri Slaby
2020-06-15 7:48 ` [PATCH 20/38] vc: simplify condition in vc_con_write_normal Jiri Slaby
2020-06-15 7:48 ` [PATCH 21/38] vt: simplify vc_attr handling " Jiri Slaby
2020-06-15 7:48 ` [PATCH 22/38] vt: make tc write more obvious " Jiri Slaby
2020-06-15 7:48 ` [PATCH 23/38] vt: synchronize types and use min in csi_X Jiri Slaby
2020-06-15 7:48 ` [PATCH 24/38] vt: whitespace and paren cleanup in add_softcursor Jiri Slaby
2020-06-15 7:48 ` [PATCH 25/38] vt: redefine world of cursor macros Jiri Slaby
2020-06-15 7:48 ` [PATCH 26/38] vt: use newly defined CUR_* macros Jiri Slaby
2020-06-15 20:31 ` Helge Deller
2020-06-15 7:48 ` [PATCH 27/38] vt: remove superfluous parens in invert_screen and build_attr Jiri Slaby
2020-06-15 7:49 ` [PATCH 28/38] vt: simplify noncolor attributes in build_attr Jiri Slaby
2020-06-15 7:49 ` [PATCH 29/38] vt_ioctl: eliminate ret & breaks in vt_ioctl Jiri Slaby
2020-06-15 7:49 ` [PATCH 30/38] vt_ioctl: eliminate use of uival and ucval Jiri Slaby
2020-06-15 7:49 ` [PATCH 31/38] vt_ioctl: move K* ioctls to a separate function Jiri Slaby
2020-06-15 7:49 ` [PATCH 32/38] vt_ioctl: move io " Jiri Slaby
2020-06-15 7:49 ` [PATCH 33/38] vt_ioctl: move vt_setactivate out of vt_ioctl Jiri Slaby
2020-06-15 7:49 ` [PATCH 34/38] vt_ioctl: move vt_reldisp " Jiri Slaby
2020-06-15 7:49 ` [PATCH 35/38] vt_ioctl: move vt_resizex " Jiri Slaby
2020-06-15 7:49 ` [PATCH 36/38] vt_ioctl: move vt_io_fontreset out of vt_io_ioctl Jiri Slaby
2020-06-15 7:49 ` [PATCH 37/38] vt_ioctl: move vt_kdsetmode out of vt_k_ioctl Jiri Slaby
2020-06-15 7:49 ` [PATCH 38/38] vt_ioctl: move perm checks level up Jiri Slaby
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