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render: multi-cell: decrement 'extra-cursor' pointer instead of indexing

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Daniel Eklöf 2025-08-28 07:34:21 +02:00
parent 64f52190ed
commit dcabe14392
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GPG key ID: 5BBD4992C116573F
1 changed files with 11 additions and 7 deletions
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18
render.c
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@ -1272,15 +1272,19 @@ render_row(struct terminal *term, pixman_image_t *pix,
pixman_region32_t *damage, struct row *row,
int row_no, int cursor_col)
{
if (likely(pixman_region32_empty(&term->multi_cursor.active))) {
for (int col = term->cols - 1; col >= 0; col--)
render_cell(term, pix, damage, row, row_no, col, cursor_col == col, MULTI_CURSOR_SHAPE_NONE);
if (likely(term->multi_cursor.shapes == NULL)) {
for (int col = term->cols - 1; col >= 0; col--) {
render_cell(term, pix, damage, row, row_no, col,
cursor_col == col, MULTI_CURSOR_SHAPE_NONE);
}
} else {
xassert(term->multi_cursor.shapes != NULL);
enum multi_cursor_shape *extra_cursors =
&term->multi_cursor.shapes[row_no * term->cols + term->cols - 1];
enum multi_cursor_shape *extra_cursors = &term->multi_cursor.shapes[row_no * term->cols];
for (int col = term->cols - 1; col >= 0; col--)
render_cell(term, pix, damage, row, row_no, col, cursor_col == col, extra_cursors[col]);
for (int col = term->cols - 1; col >= 0; col--, extra_cursors--) {
render_cell(term, pix, damage, row, row_no, col,
cursor_col == col, *extra_cursors);
}
}
}