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Coalesce virtual console screen updates.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6374 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2009-01-21 03:02:52 +00:00
parent 6e60065f88
commit 14778c2064
1 changed files with 33 additions and 7 deletions
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40
console.c
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@ -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;
}