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splash-log: reset display on resolution change

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This commit is contained in:
K. Lange 2021-07-21 05:48:32 +09:00
parent 5636d6e045
commit 17473a289f
1 changed files with 8 additions and 0 deletions
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8
apps/splash-log.c
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@ -76,6 +76,7 @@ static void fb_update_message(char * c, int line) {
}
static void fb_clear_screen(void) {
line_offset = 0;
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; ++x) {
set_point(x,y,BG_COLOR);
@ -108,6 +109,7 @@ static void vga_update_message(char * c, int line) {
}
static void vga_clear_screen(void) {
line_offset = 0;
for (int y = 0; y < 24; ++y) {
for (int x = 0; x < 80; ++x) {
placech(' ', x, y, 0); /* Clear */
@ -121,6 +123,12 @@ static void reinit_video(int signum) {
ioctl(framebuffer_fd, IO_VID_DEPTH, &depth);
ioctl(framebuffer_fd, IO_VID_ADDR, &framebuffer);
ioctl(framebuffer_fd, IO_VID_SIGNAL, NULL);
if (signum) {
char screen_update_msg[512];
snprintf(screen_update_msg, 511, "Display resolution changed to %ldx%ld", width, height);
clear_screen();
update_message(screen_update_msg,0);
}
signal(SIGWINEVENT, reinit_video);
}