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#include "vterm.h"
#include <camellia/syscalls.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <camellia/compat.h>
struct point cursor = {0};
void in_char(char c) {
switch (c) {
case '\n':
cursor.x = 0;
cursor.y++;
break;
case '\b':
if (cursor.x > 0) cursor.x--;
break;
case '\t':
/* rounds down to nearest multiple of 8 and adds 8
= adding 1 and rounding up to the nearest multiple of 8 */
cursor.x = (cursor.x & ~7) + 8;
break;
default:
font_blit(c, cursor.x, cursor.y);
cursor.x++;
}
if (cursor.x * font.w >= fb.width) {
cursor.x = 0;
cursor.y++;
}
while ((cursor.y + 1) * font.h >= fb.height) scroll();
}
int main(void) {
if (fb_setup(&fb, "/kdev/video/") < 0) {
eprintf("fb_setup error");
return 1;
}
font_load("/init/usr/share/fonts/spleen/spleen-8x16.psfu");
static char buf[512];
struct ufs_request res;
while (!c0_fs_wait(buf, sizeof buf, &res)) {
switch (res.op) {
case VFSOP_OPEN:
// TODO check path
c0_fs_respond(NULL, 0, 0);
break;
case VFSOP_WRITE:
if (res.flags) {
c0_fs_respond(NULL, -1, 0);
} else {
for (size_t i = 0; i < res.len; i++)
in_char(buf[i]);
dirty_flush(&dirty, &fb);
c0_fs_respond(NULL, res.len, 0);
}
break;
default:
c0_fs_respond(NULL, -1, 0);
break;
}
}
return 1;
}
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