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authorpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2009-01-21 03:02:52 +0000
committerpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2009-01-21 03:02:52 +0000
commit14778c2064166a8d1d07b22f0af9eee4fa490e60 (patch)
tree49df9fefcd3ceaf5e1ffa78737e88b286d4907c6 /console.c
parentFix SDL slowness. (diff)
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Coalesce virtual console screen updates.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6374 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'console.c')
-rw-r--r--console.c40
1 files changed, 33 insertions, 7 deletions
diff --git a/console.c b/console.c
index 6f0f1afad..6d0c1b3b6 100644
--- a/console.c
+++ b/console.c
@@ -139,6 +139,11 @@ struct TextConsole {
TextCell *cells;
int text_x[2], text_y[2], cursor_invalidate;
+ int update_x0;
+ int update_y0;
+ int update_x1;
+ int update_y1;
+
enum TTYState state;
int esc_params[MAX_ESC_PARAMS];
int nb_esc_params;
@@ -537,6 +542,18 @@ static inline void text_update_xy(TextConsole *s, int x, int y)
s->text_y[1] = MAX(s->text_y[1], y);
}
+static void invalidate_xy(TextConsole *s, int x, int y)
+{
+ if (s->update_x0 > x * FONT_WIDTH)
+ s->update_x0 = x * FONT_WIDTH;
+ if (s->update_y0 > y * FONT_HEIGHT)
+ s->update_y0 = y * FONT_HEIGHT;
+ if (s->update_x1 < (x + 1) * FONT_WIDTH)
+ s->update_x1 = (x + 1) * FONT_WIDTH;
+ if (s->update_y1 < (y + 1) * FONT_HEIGHT)
+ s->update_y1 = (y + 1) * FONT_HEIGHT;
+}
+
static void update_xy(TextConsole *s, int x, int y)
{
TextCell *c;
@@ -556,8 +573,7 @@ static void update_xy(TextConsole *s, int x, int y)
c = &s->cells[y1 * s->width + x];
vga_putcharxy(s->ds, x, y2, c->ch,
&(c->t_attrib));
- dpy_update(s->ds, x * FONT_WIDTH, y2 * FONT_HEIGHT,
- FONT_WIDTH, FONT_HEIGHT);
+ invalidate_xy(s, x, y2);
}
}
}
@@ -591,8 +607,7 @@ static void console_show_cursor(TextConsole *s, int show)
} else {
vga_putcharxy(s->ds, x, y, c->ch, &(c->t_attrib));
}
- dpy_update(s->ds, x * FONT_WIDTH, y * FONT_HEIGHT,
- FONT_WIDTH, FONT_HEIGHT);
+ invalidate_xy(s, x, y);
}
}
}
@@ -626,8 +641,8 @@ static void console_refresh(TextConsole *s)
if (++y1 == s->total_height)
y1 = 0;
}
- dpy_update(s->ds, 0, 0, ds_get_width(s->ds), ds_get_height(s->ds));
console_show_cursor(s, 1);
+ dpy_update(s->ds, 0, 0, ds_get_width(s->ds), ds_get_height(s->ds));
}
static void console_scroll(int ydelta)
@@ -703,8 +718,10 @@ static void console_put_lf(TextConsole *s)
vga_fill_rect(s->ds, 0, (s->height - 1) * FONT_HEIGHT,
s->width * FONT_WIDTH, FONT_HEIGHT,
color_table[0][s->t_attrib_default.bgcol]);
- dpy_update(s->ds, 0, 0,
- s->width * FONT_WIDTH, s->height * FONT_HEIGHT);
+ s->update_x0 = 0;
+ s->update_y0 = 0;
+ s->update_x1 = s->width * FONT_WIDTH;
+ s->update_y1 = s->height * FONT_HEIGHT;
}
}
}
@@ -1062,11 +1079,20 @@ static int console_puts(CharDriverState *chr, const uint8_t *buf, int len)
TextConsole *s = chr->opaque;
int i;
+ s->update_x0 = s->width * FONT_WIDTH;
+ s->update_y0 = s->height * FONT_HEIGHT;
+ s->update_x1 = 0;
+ s->update_y1 = 0;
console_show_cursor(s, 0);
for(i = 0; i < len; i++) {
console_putchar(s, buf[i]);
}
console_show_cursor(s, 1);
+ if (ds_get_bits_per_pixel(s->ds) && s->update_x0 < s->update_x1) {
+ dpy_update(s->ds, s->update_x0, s->update_y0,
+ s->update_x1 - s->update_x0,
+ s->update_y1 - s->update_y0);
+ }
return len;
}