+void madtty_resize(madtty_t *rt, int rows, int cols)
+{
+ struct winsize ws = { .ws_row = rows, .ws_col = cols };
+ mtty_row_t *lines = rt->lines;
+
+ if (rows <= 0 || cols <= 0)
+ return;
+
+ if (rt->rows != rows) {
+ while (rt->rows > rows) {
+ free(lines[rt->rows - 1].text);
+ free(lines[rt->rows - 1].attr);
+ rt->rows--;
+ }
+
+ lines = realloc(lines, sizeof(mtty_row_t) * rows);
+ }
+
+ if (rt->cols != cols) {
+ for (int row = 0; row < rt->rows; row++) {
+ lines[row].text = realloc(lines[row].text, sizeof(wchar_t) * cols);
+ lines[row].attr = realloc(lines[row].attr, sizeof(uint16_t) * cols);
+ if (rt->cols < cols)
+ mtty_row_set(lines + row, rt->cols, cols - rt->cols, 0);
+ }
+ rt->cols = cols;
+ }
+
+ while (rt->rows < rows) {
+ lines[rt->rows].text = (wchar_t *)calloc(sizeof(wchar_t), cols);
+ lines[rt->rows].attr = (uint16_t *)calloc(sizeof(uint16_t), cols);
+ rt->rows++;
+ }
+
+ rt->curs_row += lines - rt->lines;
+ rt->scroll_top += lines - rt->lines;
+ rt->scroll_bot += lines - rt->lines;
+ if (rt->scroll_bot > lines + rt->rows)
+ rt->scroll_bot = lines + rt->rows;
+ rt->lines = lines;
+ clamp_cursor_to_bounds(rt);
+ ioctl(rt->pty, TIOCSWINSZ, &ws);
+ kill(-rt->childpid, SIGWINCH);
+}
+