mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-01 00:38:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Bare metal VGA: implement "status report" escape codes (#613)

Browse source 
* Bare metal VGA: implement "status report" escape codes
* Minor fix to pseudoteletypewriter code

Co-authored-by: tkchia <tkchia-cosmo@gmx.com>
This commit is contained in:
tkchia 2022-09-13 17:14:10 +08:00 • committed by Justine Tunney
parent 116bda997e
commit c4eb701d56
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
8 changed files with 113 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

9
libc/vga/writev-vga.c
View file

@ -31,20 +31,21 @@
#include "libc/runtime/pc.internal.h"
#include "libc/str/str.h"
static struct Tty vga_tty;
#ifdef VGA_USE_WCS
static wchar_t vga_wcs[VGA_TTY_HEIGHT * VGA_TTY_WIDTH];
#else
static wchar_t * const vga_wcs = NULL;
#endif
struct Tty _vga_tty;
ssize_t sys_writev_vga(struct Fd *fd, const struct iovec *iov, int iovlen) {
size_t i, wrote = 0;
ssize_t res = 0;
for (i = 0; i < iovlen; ++i) {
void *input = iov[i].iov_base;
void *output = iov[i].iov_base;
size_t len = iov[i].iov_len;
res = _TtyWrite(&vga_tty, input, len);
res = _TtyWrite(&_vga_tty, output, len);
if (res < 0)
break;
wrote += res;
@ -75,6 +76,6 @@ __attribute__((__constructor__)) static textstartup void _vga_init(void) {
* Initialize our tty structure from the current screen contents, current
* cursor position, & character height.
*/
_StartTty(&vga_tty, VGA_TTY_HEIGHT, VGA_TTY_WIDTH, pos.row, pos.col,
_StartTty(&_vga_tty, VGA_TTY_HEIGHT, VGA_TTY_WIDTH, pos.row, pos.col,
chr_ht, vid_buf, vga_wcs);
}