loader: vidc_init should also erase the screen

Inject \e[J to erase the initial loader screen. We have two options,
find where out cursor is and use BIOS scroll for data from boot2 or erase the
display and start from origin. Erasing the screen is easier and we also
get the screen buffer initialized.

Sponsored by:	Netflix, Klara Inc.
This commit is contained in:
tsoome 2020-06-17 08:08:57 +00:00
parent f302f42b9b
commit 15af851e1e

View File

@ -709,11 +709,8 @@ vidc_init(int arg)
env_setenv("teken.bg_color", EV_VOLATILE, env, vidc_set_colors,
env_nounset);
for (int row = 0; row < tp.tp_row; row++)
for (int col = 0; col < tp.tp_col; col++) {
buffer[col + row * tp.tp_col].c = ' ';
buffer[col + row * tp.tp_col].a = *a;
}
/* Erase display, this will also fill our screen buffer. */
teken_input(&teken, "\e[J", 3);
for (int i = 0; i < 10 && vidc_ischar(); i++)
(void) vidc_getchar();