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Adding sync patch ref. #21

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This commit is contained in:
bakkeby 2021-05-09 09:25:22 +02:00
parent 3b88d65645
commit 56e208e0de
10 changed files with 141 additions and 2 deletions
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33
st.c
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@ -904,7 +904,11 @@ ttyread(void)
int ret, written;
/* append read bytes to unprocessed bytes */
#if SYNC_PATCH
ret = twrite_aborted ? 1 : read(cmdfd, buf+buflen, LEN(buf)-buflen);
#else
ret = read(cmdfd, buf+buflen, LEN(buf)-buflen);
#endif // SYNC_PATCH
switch (ret) {
case 0:
@ -912,7 +916,11 @@ ttyread(void)
case -1:
die("couldn't read from shell: %s\n", strerror(errno));
default:
#if SYNC_PATCH
buflen += twrite_aborted ? 0 : ret;
#else
buflen += ret;
#endif // SYNC_PATCH
written = twrite(buf, buflen, 0);
buflen -= written;
/* keep any incomplete UTF-8 byte sequence for the next call */
@ -1077,6 +1085,9 @@ tsetdirtattr(int attr)
void
tfulldirt(void)
{
#if SYNC_PATCH
tsync_end();
#endif // SYNC_PATCH
tsetdirt(0, term.row-1);
}
@ -2241,8 +2252,17 @@ strhandle(void)
tnewline(1);
}
}
return;
#endif // SIXEL_PATCH
#if SYNC_PATCH
/* https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec */
if (strstr(strescseq.buf, "=1s") == strescseq.buf)
tsync_begin(); /* BSU */
else if (strstr(strescseq.buf, "=2s") == strescseq.buf)
tsync_end(); /* ESU */
#endif // SYNC_PATCH
#if SIXEL_PATCH || SYNC_PATCH
return;
#endif // SIXEL_PATCH | SYNC_PATCH
case '_': /* APC -- Application Program Command */
case '^': /* PM -- Privacy Message */
return;
@ -2834,6 +2854,11 @@ twrite(const char *buf, int buflen, int show_ctrl)
Rune u;
int n;
#if SYNC_PATCH
int su0 = su;
twrite_aborted = 0;
#endif // SYNC_PATCH
for (n = 0; n < buflen; n += charsize) {
#if SIXEL_PATCH
if (IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL))
@ -2849,6 +2874,12 @@ twrite(const char *buf, int buflen, int show_ctrl)
u = buf[n] & 0xFF;
charsize = 1;
}
#if SYNC_PATCH
if (su0 && !su) {
twrite_aborted = 1;
break; // ESU - allow rendering before a new BSU
}
#endif // SYNC_PATCH
if (show_ctrl && ISCONTROL(u)) {
if (u & 0x80) {
u &= 0x7f;