diff options
| -rw-r--r-- | vterm-module.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/vterm-module.c b/vterm-module.c index 7bdd635..0418b69 100644 --- a/vterm-module.c +++ b/vterm-module.c @@ -264,8 +264,18 @@ static void refresh_lines(Term *term, emacs_env *env, int start_row, } int i, j; - char buffer[((end_row - start_row + 1) * end_col) * 4]; +#define PUSH_BUFFER(c) do { \ + if (length == capacity) { \ + capacity += end_col * 4; \ + buffer = realloc(buffer, capacity * sizeof(char)); \ + } \ + buffer[length] = (c); \ + length++; \ + } while (0) + + int capacity = ((end_row - start_row + 1) * end_col) * 4; int length = 0; + char* buffer = malloc(capacity * sizeof(char)); VTermScreenCell cell; VTermScreenCell lastCell; fetch_cell(term, start_row, 0, &lastCell); @@ -298,19 +308,18 @@ static void refresh_lines(Term *term, emacs_env *env, int start_row, if (cell.chars[0] == 0) { if (is_eol(term, end_col, i, j)) { /* This cell is EOL if this and every cell to the right is black */ - buffer[length] = '\n'; - length++; + PUSH_BUFFER('\n'); newline = 1; break; } - buffer[length] = ' '; - length++; + PUSH_BUFFER(' '); } else { - unsigned char bytes[4]; - size_t count = codepoint_to_utf8(cell.chars[0], bytes); - for (int k = 0; k < count; k++) { - buffer[length] = bytes[k]; - length++; + for (int k = 0; k < VTERM_MAX_CHARS_PER_CELL && cell.chars[k]; ++k) { + unsigned char bytes[4]; + size_t count = codepoint_to_utf8(cell.chars[k], bytes); + for (int l = 0; l < count; l++) { + PUSH_BUFFER(bytes[l]); + } } } @@ -337,6 +346,9 @@ static void refresh_lines(Term *term, emacs_env *env, int start_row, emacs_value text = render_text(env, term, buffer, length, &lastCell); insert(env, text); +#undef PUSH_BUFFER + free(buffer); + return; } // Refresh the screen (visible part of the buffer when the terminal is |