* then we must look one space further to the left.
*/
#define UCSGET(a, x) \
- ( (x)>0 && ((a)[(x)] & (CHAR_MASK | CSET_MASK)) == UCSWIDE ? \
- (a)[(x)-1] : (a)[(x)] )
+ ( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
+
+/*
+ * Detect the various aliases of U+0020 SPACE.
+ */
+#define IS_SPACE_CHR(chr) \
+ ((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
+
+/*
+ * Spot magic CSETs.
+ */
+#define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
/*
* Internal prototypes.
*/
-static unsigned long *resizeline(unsigned long *, int);
-static unsigned long *lineptr(Terminal *, int, int);
+static void resizeline(Terminal *, termline *, int);
+static termline *lineptr(Terminal *, int, int, int);
+static void unlineptr(termline *);
static void do_paint(Terminal *, Context, int);
static void erase_lots(Terminal *, int, int, int);
static void swap_screen(Terminal *, int, int, int);
static void scroll_display(Terminal *, int, int, int);
#endif /* OPTIMISE_SCROLL */
+static termline *newline(Terminal *term, int cols, int bce)
+{
+ termline *line;
+ int j;
+
+ line = snew(termline);
+ line->chars = snewn(cols, termchar);
+ for (j = 0; j < cols; j++)
+ line->chars[j] = (bce ? term->erase_char : term->basic_erase_char);
+ line->cols = cols;
+ line->lattr = LATTR_NORM;
+ line->temporary = FALSE;
+
+ return line;
+}
+
+static void freeline(termline *line)
+{
+ sfree(line->chars);
+ sfree(line);
+}
+
+static void unlineptr(termline *line)
+{
+ if (line->temporary)
+ freeline(line);
+}
+
+/*
+ * Compress and decompress a termline into an RLE-based format for
+ * storing in scrollback. (Since scrollback almost never needs to
+ * be modified and exists in huge quantities, this is a sensible
+ * tradeoff, particularly since it allows us to continue adding
+ * features to the main termchar structure without proportionally
+ * bloating the terminal emulator's memory footprint unless those
+ * features are in constant use.)
+ */
+struct buf {
+ unsigned char *data;
+ int len, size;
+};
+static void add(struct buf *b, unsigned char c)
+{
+ if (b->len >= b->size) {
+ b->size = (b->len * 3 / 2) + 512;
+ b->data = sresize(b->data, b->size, unsigned char);
+ }
+ b->data[b->len++] = c;
+}
+static int get(struct buf *b)
+{
+ return b->data[b->len++];
+}
+static void makerle(struct buf *b, termline *ldata,
+ void (*makeliteral)(struct buf *b, termchar *c,
+ unsigned long *state))
+{
+ int hdrpos, hdrsize, n, prevlen, prevpos, thislen, thispos, prev2;
+ termchar *c = ldata->chars;
+ unsigned long state = 0, oldstate;
+
+ n = ldata->cols;
+
+ hdrpos = b->len;
+ hdrsize = 0;
+ add(b, 0);
+ prevlen = prevpos = 0;
+ prev2 = FALSE;
+
+ while (n-- > 0) {
+ thispos = b->len;
+ makeliteral(b, c++, &state);
+ thislen = b->len - thispos;
+ if (thislen == prevlen &&
+ !memcmp(b->data + prevpos, b->data + thispos, thislen)) {
+ /*
+ * This literal precisely matches the previous one.
+ * Turn it into a run if it's worthwhile.
+ *
+ * With one-byte literals, it costs us two bytes to
+ * encode a run, plus another byte to write the header
+ * to resume normal output; so a three-element run is
+ * neutral, and anything beyond that is unconditionally
+ * worthwhile. With two-byte literals or more, even a
+ * 2-run is a win.
+ */
+ if (thislen > 1 || prev2) {
+ int runpos, runlen;
+
+ /*
+ * It's worth encoding a run. Start at prevpos,
+ * unless hdrsize==0 in which case we can back up
+ * another one and start by overwriting hdrpos.
+ */
+
+ hdrsize--; /* remove the literal at prevpos */
+ if (prev2) {
+ assert(hdrsize > 0);
+ hdrsize--;
+ prevpos -= prevlen;/* and possibly another one */
+ }
+
+ if (hdrsize == 0) {
+ assert(prevpos == hdrpos + 1);
+ runpos = hdrpos;
+ b->len = prevpos+prevlen;
+ } else {
+ memmove(b->data + prevpos+1, b->data + prevpos, prevlen);
+ runpos = prevpos;
+ b->len = prevpos+prevlen+1;
+ /*
+ * Terminate the previous run of ordinary
+ * literals.
+ */
+ assert(hdrsize >= 1 && hdrsize <= 128);
+ b->data[hdrpos] = hdrsize - 1;
+ }
+
+ runlen = prev2 ? 3 : 2;
+
+ while (n > 0 && runlen < 129) {
+ int tmppos, tmplen;
+ tmppos = b->len;
+ oldstate = state;
+ makeliteral(b, c, &state);
+ tmplen = b->len - tmppos;
+ b->len = tmppos;
+ if (tmplen != thislen ||
+ memcmp(b->data + runpos+1, b->data + tmppos, tmplen)) {
+ state = oldstate;
+ break; /* run over */
+ }
+ n--, c++, runlen++;
+ }
+
+ assert(runlen >= 2 && runlen <= 129);
+ b->data[runpos] = runlen + 0x80 - 2;
+
+ hdrpos = b->len;
+ hdrsize = 0;
+ add(b, 0);
+
+ continue;
+ } else {
+ /*
+ * Just flag that the previous two literals were
+ * identical, in case we find a third identical one
+ * we want to turn into a run.
+ */
+ prev2 = TRUE;
+ prevlen = thislen;
+ prevpos = thispos;
+ }
+ } else {
+ prev2 = FALSE;
+ prevlen = thislen;
+ prevpos = thispos;
+ }
+
+ /*
+ * This character isn't (yet) part of a run. Add it to
+ * hdrsize.
+ */
+ hdrsize++;
+ if (hdrsize == 128) {
+ b->data[hdrpos] = hdrsize - 1;
+ hdrpos = b->len;
+ hdrsize = 0;
+ add(b, 0);
+ prevlen = prevpos = 0;
+ prev2 = FALSE;
+ }
+ }
+
+ /*
+ * Clean up.
+ */
+ if (hdrsize > 0) {
+ assert(hdrsize <= 128);
+ b->data[hdrpos] = hdrsize - 1;
+ } else {
+ b->len = hdrpos;
+ }
+}
+static void makeliteral_chr(struct buf *b, termchar *c, unsigned long *state)
+{
+ /*
+ * My encoding for characters is UTF-8-like, in that it stores
+ * 7-bit ASCII in one byte and uses high-bit-set bytes as
+ * introducers to indicate a longer sequence. However, it's
+ * unlike UTF-8 in that it doesn't need to be able to
+ * resynchronise, and therefore I don't want to waste two bits
+ * per byte on having recognisable continuation characters.
+ * Also I don't want to rule out the possibility that I may one
+ * day use values 0x80000000-0xFFFFFFFF for interesting
+ * purposes, so unlike UTF-8 I need a full 32-bit range.
+ * Accordingly, here is my encoding:
+ *
+ * 00000000-0000007F: 0xxxxxxx (but see below)
+ * 00000080-00003FFF: 10xxxxxx xxxxxxxx
+ * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
+ * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ *
+ * (`Z' is like `x' but is always going to be zero since the
+ * values I'm encoding don't go above 2^32. In principle the
+ * five-byte form of the encoding could extend to 2^35, and
+ * there could be six-, seven-, eight- and nine-byte forms as
+ * well to allow up to 64-bit values to be encoded. But that's
+ * completely unnecessary for these purposes!)
+ *
+ * The encoding as written above would be very simple, except
+ * that 7-bit ASCII can occur in several different ways in the
+ * terminal data; sometimes it crops up in the D800 page
+ * (CSET_ASCII) but at other times it's in the 0000 page (real
+ * Unicode). Therefore, this encoding is actually _stateful_:
+ * the one-byte encoding of 00-7F actually indicates `reuse the
+ * upper three bytes of the last character', and to encode an
+ * absolute value of 00-7F you need to use the two-byte form
+ * instead.
+ */
+ if ((c->chr & ~0x7F) == *state) {
+ add(b, (unsigned char)(c->chr & 0x7F));
+ } else if (c->chr < 0x4000) {
+ add(b, (unsigned char)(((c->chr >> 8) & 0x3F) | 0x80));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ } else if (c->chr < 0x200000) {
+ add(b, (unsigned char)(((c->chr >> 16) & 0x1F) | 0xC0));
+ add(b, (unsigned char)((c->chr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ } else if (c->chr < 0x10000000) {
+ add(b, (unsigned char)(((c->chr >> 24) & 0x0F) | 0xE0));
+ add(b, (unsigned char)((c->chr >> 16) & 0xFF));
+ add(b, (unsigned char)((c->chr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ } else {
+ add(b, 0xF0);
+ add(b, (unsigned char)((c->chr >> 24) & 0xFF));
+ add(b, (unsigned char)((c->chr >> 16) & 0xFF));
+ add(b, (unsigned char)((c->chr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ }
+ *state = c->chr & ~0xFF;
+}
+static void makeliteral_attr(struct buf *b, termchar *c, unsigned long *state)
+{
+ /*
+ * My encoding for attributes is 16-bit-granular and assumes
+ * that the top bit of the word is never required. I either
+ * store a two-byte value with the top bit clear (indicating
+ * just that value), or a four-byte value with the top bit set
+ * (indicating the same value with its top bit clear).
+ */
+ if (c->attr < 0x8000) {
+ add(b, (unsigned char)((c->attr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->attr & 0xFF));
+ } else {
+ add(b, (unsigned char)(((c->attr >> 24) & 0x7F) | 0x80));
+ add(b, (unsigned char)((c->attr >> 16) & 0xFF));
+ add(b, (unsigned char)((c->attr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->attr & 0xFF));
+ }
+}
+
+static termline *decompressline(unsigned char *data, int *bytes_used);
+
+static unsigned char *compressline(termline *ldata)
+{
+ struct buf buffer = { NULL, 0, 0 }, *b = &buffer;
+
+ /*
+ * First, store the column count, 7 bits at a time, least
+ * significant `digit' first, with the high bit set on all but
+ * the last.
+ */
+ {
+ int n = ldata->cols;
+ while (n >= 128) {
+ add(b, (unsigned char)((n & 0x7F) | 0x80));
+ n >>= 7;
+ }
+ add(b, (unsigned char)(n));
+ }
+
+ /*
+ * Next store the lattrs; same principle.
+ */
+ {
+ int n = ldata->lattr;
+ while (n >= 128) {
+ add(b, (unsigned char)((n & 0x7F) | 0x80));
+ n >>= 7;
+ }
+ add(b, (unsigned char)(n));
+ }
+
+ /*
+ * Now we store a sequence of separate run-length encoded
+ * fragments, each containing exactly as many symbols as there
+ * are columns in the ldata.
+ *
+ * All of these have a common basic format:
+ *
+ * - a byte 00-7F indicates that X+1 literals follow it
+ * - a byte 80-FF indicates that a single literal follows it
+ * and expects to be repeated (X-0x80)+2 times.
+ *
+ * The format of the `literals' varies between the fragments.
+ */
+ makerle(b, ldata, makeliteral_chr);
+ makerle(b, ldata, makeliteral_attr);
+
+ /*
+ * Diagnostics: ensure that the compressed data really does
+ * decompress to the right thing.
+ */
+#ifndef CHECK_SB_COMPRESSION
+ {
+ int dused;
+ termline *dcl;
+
+#ifdef DIAGNOSTIC_SB_COMPRESSION
+ int i;
+ for (i = 0; i < b->len; i++) {
+ printf(" %02x ", b->data[i]);
+ }
+ printf("\n");
+#endif
+
+ dcl = decompressline(b->data, &dused);
+ assert(b->len == dused);
+ assert(ldata->cols == dcl->cols);
+ assert(ldata->lattr == dcl->lattr);
+ assert(!memcmp(ldata->chars, dcl->chars, ldata->cols * TSIZE));
+
+#ifdef DIAGNOSTIC_SB_COMPRESSION
+ printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
+ ldata->cols, 4 * ldata->cols, dused,
+ (double)dused / (4 * ldata->cols));
+#endif
+
+ freeline(dcl);
+ }
+#endif
+
+ /*
+ * Trim the allocated memory so we don't waste any, and return.
+ */
+ return sresize(b->data, b->len, unsigned char);
+}
+
+static void readrle(struct buf *b, termline *ldata,
+ void (*readliteral)(struct buf *b, termchar *c,
+ unsigned long *state))
+{
+ int n = 0;
+ unsigned long state = 0;
+
+ while (n < ldata->cols) {
+ int hdr = get(b);
+
+ if (hdr >= 0x80) {
+ /* A run. */
+
+ int pos = b->len, count = hdr + 2 - 0x80;
+ while (count--) {
+ assert(n < ldata->cols);
+ b->len = pos;
+ readliteral(b, ldata->chars + n, &state);
+ n++;
+ }
+ } else {
+ /* Just a sequence of consecutive literals. */
+
+ int count = hdr + 1;
+ while (count--) {
+ assert(n < ldata->cols);
+ readliteral(b, ldata->chars + n, &state);
+ n++;
+ }
+ }
+ }
+
+ assert(n == ldata->cols);
+}
+static void readliteral_chr(struct buf *b, termchar *c, unsigned long *state)
+{
+ int byte;
+
+ /*
+ * 00000000-0000007F: 0xxxxxxx
+ * 00000080-00003FFF: 10xxxxxx xxxxxxxx
+ * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
+ * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ */
+
+ byte = get(b);
+ if (byte < 0x80) {
+ c->chr = byte | *state;
+ } else if (byte < 0xC0) {
+ c->chr = (byte &~ 0xC0) << 8;
+ c->chr |= get(b);
+ } else if (byte < 0xE0) {
+ c->chr = (byte &~ 0xE0) << 16;
+ c->chr |= get(b) << 8;
+ c->chr |= get(b);
+ } else if (byte < 0xF0) {
+ c->chr = (byte &~ 0xF0) << 24;
+ c->chr |= get(b) << 16;
+ c->chr |= get(b) << 8;
+ c->chr |= get(b);
+ } else {
+ assert(byte == 0xF0);
+ c->chr = get(b) << 24;
+ c->chr |= get(b) << 16;
+ c->chr |= get(b) << 8;
+ c->chr |= get(b);
+ }
+ *state = c->chr & ~0xFF;
+}
+static void readliteral_attr(struct buf *b, termchar *c, unsigned long *state)
+{
+ int val;
+
+ val = get(b) << 8;
+ val |= get(b);
+
+ if (val >= 0x8000) {
+ val <<= 16;
+ val |= get(b) << 8;
+ val |= get(b);
+ }
+
+ c->attr = val;
+}
+
+static termline *decompressline(unsigned char *data, int *bytes_used)
+{
+ int ncols, byte, shift;
+ struct buf buffer, *b = &buffer;
+ termline *ldata;
+
+ b->data = data;
+ b->len = 0;
+
+ /*
+ * First read in the column count.
+ */
+ ncols = shift = 0;
+ do {
+ byte = get(b);
+ ncols |= (byte & 0x7F) << shift;
+ shift += 7;
+ } while (byte & 0x80);
+
+ /*
+ * Now create the output termline.
+ */
+ ldata = snew(termline);
+ ldata->chars = snewn(ncols, termchar);
+ ldata->cols = ncols;
+ ldata->temporary = TRUE;
+
+ /*
+ * Now read in the lattr.
+ */
+ ldata->lattr = shift = 0;
+ do {
+ byte = get(b);
+ ldata->lattr |= (byte & 0x7F) << shift;
+ shift += 7;
+ } while (byte & 0x80);
+
+ /*
+ * Now we read in each of the RLE streams in turn.
+ */
+ readrle(b, ldata, readliteral_chr);
+ readrle(b, ldata, readliteral_attr);
+
+ /* Return the number of bytes read, for diagnostic purposes. */
+ if (bytes_used)
+ *bytes_used = b->len;
+
+ return ldata;
+}
+
/*
* Resize a line to make it `cols' columns wide.
*/
-static unsigned long *resizeline(unsigned long *line, int cols)
+static void resizeline(Terminal *term, termline *line, int cols)
{
int i, oldlen;
- unsigned long lineattrs;
- if (line[0] != (unsigned long)cols) {
+ if (line->cols != cols) {
/*
* This line is the wrong length, which probably means it
* hasn't been accessed since a resize. Resize it now.
*/
- oldlen = line[0];
- lineattrs = line[oldlen + 1];
- line = sresize(line, 2 + cols, TTYPE);
- line[0] = cols;
+ oldlen = line->cols;
+ line->chars = sresize(line->chars, cols, TTYPE);
+ line->cols = cols;
for (i = oldlen; i < cols; i++)
- line[i + 1] = ERASE_CHAR;
- line[cols + 1] = lineattrs & LATTR_MODE;
+ line->chars[i] = term->basic_erase_char;
}
-
- return line;
}
/*
* whether the y coordinate is non-negative or negative
* (respectively).
*/
-static unsigned long *lineptr(Terminal *term, int y, int lineno)
+static termline *lineptr(Terminal *term, int y, int lineno, int screen)
{
- unsigned long *line, *newline;
+ termline *line;
tree234 *whichtree;
int treeindex;
treeindex = y;
} else {
int altlines = 0;
+
+ assert(!screen);
+
if (term->cfg.erase_to_scrollback &&
term->alt_which && term->alt_screen) {
altlines = term->alt_sblines;
/* treeindex = y + count234(term->alt_screen); */
}
}
- line = index234(whichtree, treeindex);
+ if (whichtree == term->scrollback) {
+ unsigned char *cline = index234(whichtree, treeindex);
+ line = decompressline(cline, NULL);
+ } else {
+ line = index234(whichtree, treeindex);
+ }
/* We assume that we don't screw up and retrieve something out of range. */
assert(line != NULL);
- newline = resizeline(line, term->cols);
- if (newline != line) {
- delpos234(whichtree, treeindex);
- addpos234(whichtree, newline, treeindex);
- line = newline;
- }
+ resizeline(term, line, term->cols);
+ /* FIXME: should we sort the compressed scrollback out here? */
- return line + 1;
+ return line;
}
-#define lineptr(x) lineptr(term,x,__LINE__)
+#define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
+#define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
/*
* Set up power-on settings for the terminal.
term->alt_utf = term->utf = term->save_utf = 0;
term->utf_state = 0;
term->alt_sco_acs = term->sco_acs = term->save_sco_acs = 0;
- term->cset_attr[0] = term->cset_attr[1] = term->save_csattr = ATTR_ASCII;
+ term->cset_attr[0] = term->cset_attr[1] = term->save_csattr = CSET_ASCII;
term->rvideo = 0;
term->in_vbell = FALSE;
term->cursor_on = 1;
term->app_keypad_keys = term->cfg.app_keypad;
term->use_bce = term->cfg.bce;
term->blink_is_real = term->cfg.blinktext;
- term->erase_char = ERASE_CHAR;
+ term->erase_char = term->basic_erase_char;
term->alt_which = 0;
term_print_finish(term);
{
if (!term->cfg.arabicshaping || !term->cfg.bidi)
{
term->wcFrom = sresize(term->wcFrom, term->cols, bidi_char);
- term->ltemp = sresize(term->ltemp, term->cols+1, unsigned long);
+ term->ltemp = sresize(term->ltemp, term->cols+1, termchar);
term->wcTo = sresize(term->wcTo, term->cols, bidi_char);
}
term_update(term);
}
+static void set_erase_char(Terminal *term)
+{
+ term->erase_char = term->basic_erase_char;
+ if (term->use_bce)
+ term->erase_char.attr = (term->curr_attr &
+ (ATTR_FGMASK | ATTR_BGMASK));
+}
+
/*
* When the user reconfigures us, we need to check the forbidden-
* alternate-screen config option, disable raw mouse mode if the
term->alt_om = term->dec_om = term->cfg.dec_om;
if (reset_bce) {
term->use_bce = term->cfg.bce;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
- else
- term->erase_char = ERASE_CHAR;
+ set_erase_char(term);
}
if (reset_blink)
term->blink_is_real = term->cfg.blinktext;
set_raw_mouse_mode(term->frontend, 0);
}
if (term->cfg.no_remote_charset) {
- term->cset_attr[0] = term->cset_attr[1] = ATTR_ASCII;
+ term->cset_attr[0] = term->cset_attr[1] = CSET_ASCII;
term->sco_acs = term->alt_sco_acs = 0;
term->utf = 0;
}
*/
void term_clrsb(Terminal *term)
{
- unsigned long *line;
+ termline *line;
term->disptop = 0;
while ((line = delpos234(term->scrollback, 0)) != NULL) {
- sfree(line);
+ sfree(line); /* this is compressed data, not a termline */
}
term->tempsblines = 0;
term->alt_sblines = 0;
term->tempsblines = 0;
term->alt_sblines = 0;
term->disptop = 0;
- term->disptext = term->dispcurs = NULL;
+ term->disptext = NULL;
+ term->dispcursx = term->dispcursy = -1;
term->tabs = NULL;
deselect(term);
term->rows = term->cols = -1;
term->bidi_cache_size = 0;
term->pre_bidi_cache = term->post_bidi_cache = NULL;
+ term->basic_erase_char.chr = CSET_ASCII | ' ';
+ term->basic_erase_char.attr = ATTR_DEFAULT;
+
return term;
}
void term_free(Terminal *term)
{
- unsigned long *line;
+ termline *line;
struct beeptime *beep;
int i;
while ((line = delpos234(term->scrollback, 0)) != NULL)
- sfree(line);
+ sfree(line); /* compressed data, not a termline */
freetree234(term->scrollback);
while ((line = delpos234(term->screen, 0)) != NULL)
- sfree(line);
+ freeline(line);
freetree234(term->screen);
while ((line = delpos234(term->alt_screen, 0)) != NULL)
- sfree(line);
+ freeline(line);
freetree234(term->alt_screen);
+ if (term->disptext) {
+ for (i = 0; i < term->rows; i++)
+ freeline(term->disptext[i]);
+ }
sfree(term->disptext);
while (term->beephead) {
beep = term->beephead;
void term_size(Terminal *term, int newrows, int newcols, int newsavelines)
{
tree234 *newalt;
- unsigned long *newdisp, *line;
+ termline **newdisp, *line;
int i, j;
int sblen;
int save_alt_which = term->alt_which;
assert(term->rows == count234(term->screen));
while (term->rows < newrows) {
if (term->tempsblines > 0) {
+ unsigned char *cline;
/* Insert a line from the scrollback at the top of the screen. */
assert(sblen >= term->tempsblines);
- line = delpos234(term->scrollback, --sblen);
+ cline = delpos234(term->scrollback, --sblen);
+ line = decompressline(cline, NULL);
+ sfree(cline);
+ line->temporary = FALSE; /* reconstituted line is now real */
term->tempsblines -= 1;
addpos234(term->screen, line, 0);
term->curs.y += 1;
term->savecurs.y += 1;
} else {
/* Add a new blank line at the bottom of the screen. */
- line = snewn(newcols + 2, TTYPE);
- line[0] = newcols;
- for (j = 0; j < newcols; j++)
- line[j + 1] = ERASE_CHAR;
- line[newcols + 1] = LATTR_NORM;
+ line = newline(term, newcols, FALSE);
addpos234(term->screen, line, count234(term->screen));
}
term->rows += 1;
} else {
/* push top row to scrollback */
line = delpos234(term->screen, 0);
- addpos234(term->scrollback, line, sblen++);
+ addpos234(term->scrollback, compressline(line), sblen++);
+ freeline(line);
term->tempsblines += 1;
term->curs.y -= 1;
term->savecurs.y -= 1;
term->disptop = 0;
/* Make a new displayed text buffer. */
- newdisp = snewn(newrows * (newcols + 1), TTYPE);
- for (i = 0; i < newrows * (newcols + 1); i++)
- newdisp[i] = ATTR_INVALID;
+ newdisp = snewn(newrows, termline *);
+ for (i = 0; i < newrows; i++) {
+ newdisp[i] = newline(term, newcols, FALSE);
+ for (j = 0; j < newcols; j++)
+ newdisp[i]->chars[i].attr = ATTR_INVALID;
+ }
+ if (term->disptext) {
+ for (i = 0; i < term->rows; i++)
+ freeline(term->disptext[i]);
+ }
sfree(term->disptext);
term->disptext = newdisp;
- term->dispcurs = NULL;
+ term->dispcursx = term->dispcursy = -1;
/* Make a new alternate screen. */
newalt = newtree234(NULL);
for (i = 0; i < newrows; i++) {
- line = snewn(newcols + 2, TTYPE);
- line[0] = newcols;
- for (j = 0; j < newcols; j++)
- line[j + 1] = term->erase_char;
- line[newcols + 1] = LATTR_NORM;
+ line = newline(term, newcols, TRUE);
addpos234(newalt, line, i);
}
if (term->alt_screen) {
while (NULL != (line = delpos234(term->alt_screen, 0)))
- sfree(line);
+ freeline(line);
freetree234(term->alt_screen);
}
term->alt_screen = newalt;
{
int i;
for (i = count234(screen) - 1; i >= 0; i--) {
- unsigned long *line = index234(screen, i);
+ termline *line = index234(screen, i);
int j;
- int cols = line[0];
- for (j = 0; j < cols; j++) {
- if (line[j + 1] != term->erase_char) break;
+ for (j = 0; j < line->cols; j++) {
+ if (line->chars[j].chr != term->erase_char.chr ||
+ line->chars[j].attr != term->erase_char.attr) break;
}
- if (j != cols) break;
+ if (j != line->cols) break;
}
return i;
}
*/
static void scroll(Terminal *term, int topline, int botline, int lines, int sb)
{
- unsigned long *line, *line2;
+ termline *line;
int i, seltop, olddisptop, shift;
if (topline != 0 || term->alt_which != 0)
if (lines < 0) {
while (lines < 0) {
line = delpos234(term->screen, botline);
- line = resizeline(line, term->cols);
+ resizeline(term, line, term->cols);
for (i = 0; i < term->cols; i++)
- line[i + 1] = term->erase_char;
- line[term->cols + 1] = 0;
+ line->chars[i] = term->erase_char;
+ line->lattr = LATTR_NORM;
addpos234(term->screen, line, topline);
if (term->selstart.y >= topline && term->selstart.y <= botline) {
int sblen = count234(term->scrollback);
/*
* We must add this line to the scrollback. We'll
- * remove a line from the top of the scrollback to
- * replace it, or allocate a new one if the
- * scrollback isn't full.
+ * remove a line from the top of the scrollback if
+ * the scrollback is full.
*/
if (sblen == term->savelines) {
- sblen--, line2 = delpos234(term->scrollback, 0);
- } else {
- line2 = snewn(term->cols + 2, TTYPE);
- line2[0] = term->cols;
+ unsigned char *cline;
+
+ sblen--;
+ cline = delpos234(term->scrollback, 0);
+ sfree(cline);
+ } else
term->tempsblines += 1;
- }
- addpos234(term->scrollback, line, sblen);
- line = line2;
+
+ addpos234(term->scrollback, compressline(line), sblen);
+
+ line = newline(term, term->cols, TRUE);
/*
* If the user is currently looking at part of the
if (term->disptop > -term->savelines && term->disptop < 0)
term->disptop--;
}
- line = resizeline(line, term->cols);
+ resizeline(term, line, term->cols);
for (i = 0; i < term->cols; i++)
- line[i + 1] = term->erase_char;
- line[term->cols + 1] = LATTR_NORM;
+ line->chars[i] = term->erase_char;
+ line->lattr = LATTR_NORM;
addpos234(term->screen, line, botline);
/*
*/
static void scroll_display(Terminal *term, int topline, int botline, int lines)
{
- unsigned long *start, *end;
- int distance, size, i;
+ int distance, nlines, i;
- start = term->disptext + topline * (term->cols + 1);
- end = term->disptext + (botline + 1) * (term->cols + 1);
- distance = (lines > 0 ? lines : -lines) * (term->cols + 1);
- size = end - start - distance;
+ distance = lines > 0 ? lines : -lines;
+ nlines = botline - topline + 1 - distance;
if (lines > 0) {
- memmove(start, start + distance, size * TSIZE);
- if (term->dispcurs >= start + distance &&
- term->dispcurs <= start + distance + size)
- term->dispcurs -= distance;
+ for (i = 0; i < nlines; i++)
+ memcpy(term->disptext[start+i]->chars,
+ term->disptext[start+i+distance]->chars,
+ term->cols * TSIZE);
+ if (term->dispcursy >= 0 &&
+ term->dispcursy >= topline + distance &&
+ term->dispcursy < topline + distance + nlines)
+ term->dispcursy -= distance;
for (i = 0; i < distance; i++)
- (start + size)[i] |= ATTR_INVALID;
+ for (j = 0; j < term->cols; j++)
+ term->disptext[start+nlines+i]->chars[j].attr |= ATTR_INVALID;
} else {
- memmove(start + distance, start, size * TSIZE);
- if (term->dispcurs >= start && term->dispcurs <= start + size)
- term->dispcurs += distance;
+ for (i = nlines; i-- ;)
+ memcpy(term->disptext[start+i+distance]->chars,
+ term->disptext[start+i]->chars,
+ term->cols * TSIZE);
+ if (term->dispcursy >= 0 &&
+ term->dispcursy >= topline &&
+ term->dispcursy < topline + nlines)
+ term->dispcursy += distance;
for (i = 0; i < distance; i++)
- start[i] |= ATTR_INVALID;
+ for (j = 0; j < term->cols; j++)
+ term->disptext[start+i]->chars[j].attr |= ATTR_INVALID;
}
save_scroll(term, topline, botline, lines);
}
term->cset_attr[term->cset] = term->save_csattr;
term->sco_acs = term->save_sco_acs;
fix_cpos;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ set_erase_char(term);
}
}
*/
static void check_boundary(Terminal *term, int x, int y)
{
- unsigned long *ldata;
+ termline *ldata;
/* Validate input coordinates, just in case. */
if (x == 0 || x > term->cols)
return;
- ldata = lineptr(y);
+ ldata = scrlineptr(y);
if (x == term->cols) {
- ldata[x] &= ~LATTR_WRAPPED2;
+ ldata->lattr &= ~LATTR_WRAPPED2;
} else {
- if ((ldata[x] & (CHAR_MASK | CSET_MASK)) == UCSWIDE) {
- ldata[x-1] = ldata[x] =
- (ldata[x-1] &~ (CHAR_MASK | CSET_MASK)) | ATTR_ASCII | ' ';
+ if (ldata->chars[x].chr == UCSWIDE) {
+ ldata->chars[x-1].chr = ' ' | CSET_ASCII;
+ ldata->chars[x] = ldata->chars[x-1];
}
}
}
scroll(term, 0, scrolllines - 1, scrolllines, TRUE);
fix_cpos;
} else {
- unsigned long *ldata = lineptr(start.y);
+ termline *ldata = scrlineptr(start.y);
while (poslt(start, end)) {
if (start.x == term->cols) {
if (!erase_lattr)
- ldata[start.x] &= ~(LATTR_WRAPPED | LATTR_WRAPPED2);
+ ldata->lattr &= ~(LATTR_WRAPPED | LATTR_WRAPPED2);
else
- ldata[start.x] = LATTR_NORM;
+ ldata->lattr = LATTR_NORM;
} else {
- ldata[start.x] = term->erase_char;
+ ldata->chars[start.x] = term->erase_char;
+ }
+ if (incpos(start) && start.y < term->rows) {
+ ldata = scrlineptr(start.y);
}
- if (incpos(start) && start.y < term->rows)
- ldata = lineptr(start.y);
}
}
int dir = (n < 0 ? -1 : +1);
int m;
pos cursplus;
- unsigned long *ldata;
+ termline *ldata;
n = (n < 0 ? -n : n);
if (n > term->cols - term->curs.x)
check_boundary(term, term->curs.x, term->curs.y);
if (dir < 0)
check_boundary(term, term->curs.x + n, term->curs.y);
- ldata = lineptr(term->curs.y);
+ ldata = scrlineptr(term->curs.y);
if (dir < 0) {
- memmove(ldata + term->curs.x, ldata + term->curs.x + n, m * TSIZE);
+ memmove(ldata->chars + term->curs.x, ldata->chars + term->curs.x + n,
+ m * TSIZE);
while (n--)
- ldata[term->curs.x + m++] = term->erase_char;
+ ldata->chars[term->curs.x + m++] = term->erase_char;
} else {
- memmove(ldata + term->curs.x + n, ldata + term->curs.x, m * TSIZE);
+ memmove(ldata->chars + term->curs.x + n, ldata->chars + term->curs.x,
+ m * TSIZE);
while (n--)
- ldata[term->curs.x + n] = term->erase_char;
+ ldata->chars[term->curs.x + n] = term->erase_char;
}
}
*/
void term_out(Terminal *term)
{
- int c, unget;
+ unsigned long c;
+ int unget;
unsigned char localbuf[256], *chars;
int nchars = 0;
/* UTF-8 must be stateless so we ignore iso2022. */
if (term->ucsdata->unitab_ctrl[c] != 0xFF)
c = term->ucsdata->unitab_ctrl[c];
- else c = ((unsigned char)c) | ATTR_ASCII;
+ else c = ((unsigned char)c) | CSET_ASCII;
break;
} else if ((c & 0xe0) == 0xc0) {
term->utf_size = term->utf_state = 1;
if (c == 0xFFFE || c == 0xFFFF)
c = UCSERR;
- /* Oops this is a 16bit implementation */
- if (c >= 0x10000)
- c = 0xFFFD;
break;
}
/* Are we in the nasty ACS mode? Note: no sco in utf mode. */
(c!='\033' && c!='\012' && c!='\015' && c!='\b'))
{
if (term->sco_acs == 2) c |= 0x80;
- c |= ATTR_SCOACS;
+ c |= CSET_SCOACS;
} else {
switch (term->cset_attr[term->cset]) {
/*
* range, make sure we use the same font as well as
* the same encoding.
*/
- case ATTR_LINEDRW:
+ case CSET_LINEDRW:
if (term->ucsdata->unitab_ctrl[c] != 0xFF)
c = term->ucsdata->unitab_ctrl[c];
else
- c = ((unsigned char) c) | ATTR_LINEDRW;
+ c = ((unsigned char) c) | CSET_LINEDRW;
break;
- case ATTR_GBCHR:
+ case CSET_GBCHR:
/* If UK-ASCII, make the '#' a LineDraw Pound */
if (c == '#') {
- c = '}' | ATTR_LINEDRW;
+ c = '}' | CSET_LINEDRW;
break;
}
- /*FALLTHROUGH*/ case ATTR_ASCII:
+ /*FALLTHROUGH*/ case CSET_ASCII:
if (term->ucsdata->unitab_ctrl[c] != 0xFF)
c = term->ucsdata->unitab_ctrl[c];
else
- c = ((unsigned char) c) | ATTR_ASCII;
+ c = ((unsigned char) c) | CSET_ASCII;
break;
- case ATTR_SCOACS:
- if (c>=' ') c = ((unsigned char)c) | ATTR_SCOACS;
+ case CSET_SCOACS:
+ if (c>=' ') c = ((unsigned char)c) | CSET_SCOACS;
break;
}
}
term->curs.x--;
term->wrapnext = FALSE;
fix_cpos;
- if (!term->cfg.no_dbackspace) /* destructive bksp might be disabled */
- *term->cpos = (' ' | term->curr_attr | ATTR_ASCII);
+ /* destructive backspace might be disabled */
+ if (!term->cfg.no_dbackspace) {
+ term->cpos->chr = ' ' | CSET_ASCII;
+ term->cpos->attr = term->curr_attr;
+ }
} else
/* Or normal C0 controls. */
- if ((c & -32) == 0 && term->termstate < DO_CTRLS) {
+ if ((c & ~0x1F) == 0 && term->termstate < DO_CTRLS) {
switch (c) {
case '\005': /* ENQ: terminal type query */
/* Strictly speaking this is VT100 but a VT100 defaults to
case '\t': /* HT: Character tabulation */
{
pos old_curs = term->curs;
- unsigned long *ldata = lineptr(term->curs.y);
+ termline *ldata = scrlineptr(term->curs.y);
do {
term->curs.x++;
} while (term->curs.x < term->cols - 1 &&
!term->tabs[term->curs.x]);
- if ((ldata[term->cols] & LATTR_MODE) != LATTR_NORM) {
+ if ((ldata->lattr & LATTR_MODE) != LATTR_NORM) {
if (term->curs.x >= term->cols / 2)
term->curs.x = term->cols / 2 - 1;
} else {
/* Only graphic characters get this far;
* ctrls are stripped above */
if (term->wrapnext && term->wrap) {
- term->cpos[1] |= LATTR_WRAPPED;
+ scrlineptr(term->curs.y)->lattr |= LATTR_WRAPPED;
if (term->curs.y == term->marg_b)
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
else if (term->curs.y < term->rows - 1)
incpos(cursplus);
check_selection(term, term->curs, cursplus);
}
- if (((c & CSET_MASK) == ATTR_ASCII || (c & CSET_MASK) == 0) &&
+ if (((c & CSET_MASK) == CSET_ASCII || (c & CSET_MASK) == 0) &&
term->logctx)
logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
{
check_boundary(term, term->curs.x, term->curs.y);
check_boundary(term, term->curs.x+2, term->curs.y);
if (term->curs.x == term->cols-1) {
- *term->cpos++ = ATTR_ASCII | ' ' | term->curr_attr;
- *term->cpos |= LATTR_WRAPPED | LATTR_WRAPPED2;
+ term->cpos->chr = CSET_ASCII | ' ';
+ term->cpos->attr = term->curr_attr;
+ scrlineptr(term->curs.y)->lattr |=
+ LATTR_WRAPPED | LATTR_WRAPPED2;
if (term->curs.y == term->marg_b)
scroll(term, term->marg_t, term->marg_b,
1, TRUE);
check_boundary(term, term->curs.x, term->curs.y);
check_boundary(term, term->curs.x+2, term->curs.y);
}
- *term->cpos++ = c | term->curr_attr;
- *term->cpos++ = UCSWIDE | term->curr_attr;
+ term->cpos->chr = c;
+ term->cpos->attr = term->curr_attr;
+ term->cpos++;
+ term->cpos->chr = UCSWIDE;
+ term->cpos->attr = term->curr_attr;
term->curs.x++;
break;
case 1:
check_boundary(term, term->curs.x, term->curs.y);
check_boundary(term, term->curs.x+1, term->curs.y);
- *term->cpos++ = c | term->curr_attr;
+ term->cpos->chr = c;
+ term->cpos->attr = term->curr_attr;
+ term->cpos++;
break;
default:
continue;
term->curs.x--;
term->wrapnext = TRUE;
if (term->wrap && term->vt52_mode) {
- term->cpos[1] |= LATTR_WRAPPED;
+ scrlineptr(term->curs.y)->lattr |= LATTR_WRAPPED;
if (term->curs.y == term->marg_b)
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
else if (term->curs.y < term->rows - 1)
case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
compatibility(VT100);
{
- unsigned long *ldata;
+ termline *ldata;
int i, j;
pos scrtop, scrbot;
for (i = 0; i < term->rows; i++) {
- ldata = lineptr(i);
- for (j = 0; j < term->cols; j++)
- ldata[j] = ATTR_DEFAULT | 'E';
- ldata[term->cols] = 0;
+ ldata = scrlineptr(i);
+ for (j = 0; j < term->cols; j++) {
+ ldata->chars[j] = term->basic_erase_char;
+ ldata->chars[j].chr = 'E';
+ }
+ ldata->lattr = LATTR_NORM;
}
term->disptop = 0;
term->seen_disp_event = TRUE;
case ANSI('6', '#'):
compatibility(VT100);
{
- unsigned long nlattr;
- unsigned long *ldata;
+ int nlattr;
+
switch (ANSI(c, term->esc_query)) {
case ANSI('3', '#'): /* DECDHL: 2*height, top */
nlattr = LATTR_TOP;
nlattr = LATTR_WIDE;
break;
}
- ldata = lineptr(term->curs.y);
- ldata[term->cols] &= ~LATTR_MODE;
- ldata[term->cols] |= nlattr;
+ scrlineptr(term->curs.y)->lattr = nlattr;
}
break;
/* GZD4: G0 designate 94-set */
case ANSI('A', '('):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[0] = ATTR_GBCHR;
+ term->cset_attr[0] = CSET_GBCHR;
break;
case ANSI('B', '('):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[0] = ATTR_ASCII;
+ term->cset_attr[0] = CSET_ASCII;
break;
case ANSI('0', '('):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[0] = ATTR_LINEDRW;
+ term->cset_attr[0] = CSET_LINEDRW;
break;
case ANSI('U', '('):
compatibility(OTHER);
if (!term->cfg.no_remote_charset)
- term->cset_attr[0] = ATTR_SCOACS;
+ term->cset_attr[0] = CSET_SCOACS;
break;
/* G1D4: G1-designate 94-set */
case ANSI('A', ')'):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[1] = ATTR_GBCHR;
+ term->cset_attr[1] = CSET_GBCHR;
break;
case ANSI('B', ')'):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[1] = ATTR_ASCII;
+ term->cset_attr[1] = CSET_ASCII;
break;
case ANSI('0', ')'):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[1] = ATTR_LINEDRW;
+ term->cset_attr[1] = CSET_LINEDRW;
break;
case ANSI('U', ')'):
compatibility(OTHER);
if (!term->cfg.no_remote_charset)
- term->cset_attr[1] = ATTR_SCOACS;
+ term->cset_attr[1] = CSET_SCOACS;
break;
/* DOCS: Designate other coding system */
case ANSI('8', '%'): /* Old Linux code */
break;
}
}
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK |
- ATTR_BGMASK)));
+ set_erase_char(term);
}
break;
case 's': /* save cursor */
{
int n = def(term->esc_args[0], 1);
pos cursplus;
- unsigned long *p = term->cpos;
+ termchar *p = term->cpos;
if (n > term->cols - term->curs.x)
n = term->cols - term->curs.x;
cursplus = term->curs;
case ANSI('L', '='):
compatibility(SCOANSI);
term->use_bce = (term->esc_args[0] <= 0);
- term->erase_char = ERASE_CHAR;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ set_erase_char(term);
break;
case ANSI('p', '"'): /* DECSCL: set compat level */
/*
} else if (c == '\033')
term->termstate = OSC_MAYBE_ST;
else if (term->osc_strlen < OSC_STR_MAX)
- term->osc_string[term->osc_strlen++] = c;
+ term->osc_string[term->osc_strlen++] = (char)c;
break;
case SEEN_OSC_P:
{
int max = (term->osc_strlen == 0 ? 21 : 16);
int val;
- if (c >= '0' && c <= '9')
+ if ((int)c >= '0' && (int)c <= '9')
val = c - '0';
- else if (c >= 'A' && c <= 'A' + max - 10)
+ else if ((int)c >= 'A' && (int)c <= 'A' + max - 10)
val = c - 'A' + 10;
- else if (c >= 'a' && c <= 'a' + max - 10)
+ else if ((int)c >= 'a' && (int)c <= 'a' + max - 10)
val = c - 'a' + 10;
else {
term->termstate = TOPLEVEL;
*
*/
case 'F':
- term->cset_attr[term->cset = 0] = ATTR_LINEDRW;
+ term->cset_attr[term->cset = 0] = CSET_LINEDRW;
break;
case 'G':
- term->cset_attr[term->cset = 0] = ATTR_ASCII;
+ term->cset_attr[term->cset = 0] = CSET_ASCII;
break;
case 'H':
move(term, 0, 0, 0);
/* compatibility(OTHER) */
term->vt52_bold = FALSE;
term->curr_attr = ATTR_DEFAULT;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ set_erase_char(term);
break;
case 'S':
/* compatibility(VI50) */
if ((c & 0x8) || term->vt52_bold)
term->curr_attr |= ATTR_BOLD;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ set_erase_char(term);
break;
case VT52_BG:
term->termstate = TOPLEVEL;
if (c & 0x8)
term->curr_attr |= ATTR_BLINK;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ set_erase_char(term);
break;
#endif
default: break; /* placate gcc warning about enum use */
logflush(term->logctx);
}
-#if 0
-/*
- * Compare two lines to determine whether they are sufficiently
- * alike to scroll-optimise one to the other. Return the degree of
- * similarity.
- */
-static int linecmp(Terminal *term, unsigned long *a, unsigned long *b)
-{
- int i, n;
-
- for (i = n = 0; i < term->cols; i++)
- n += (*a++ == *b++);
- return n;
-}
-#endif
-
/*
* To prevent having to run the reasonably tricky bidi algorithm
* too many times, we maintain a cache of the last lineful of data
* fed to the algorithm on each line of the display.
*/
static int term_bidi_cache_hit(Terminal *term, int line,
- unsigned long *lbefore, int width)
+ termchar *lbefore, int width)
{
if (!term->pre_bidi_cache)
return FALSE; /* cache doesn't even exist yet! */
if (!term->pre_bidi_cache[line])
return FALSE; /* cache doesn't contain _this_ line */
- if (!memcmp(term->pre_bidi_cache[line], lbefore,
- width * sizeof(unsigned long)))
+ if (!memcmp(term->pre_bidi_cache[line], lbefore, width * TSIZE))
return TRUE; /* aha! the line matches the cache */
return FALSE; /* it didn't match. */
}
-static void term_bidi_cache_store(Terminal *term, int line,
- unsigned long *lbefore,
- unsigned long *lafter, int width)
+static void term_bidi_cache_store(Terminal *term, int line, termchar *lbefore,
+ termchar *lafter, int width)
{
if (!term->pre_bidi_cache || term->bidi_cache_size <= line) {
int j = term->bidi_cache_size;
term->bidi_cache_size = line+1;
term->pre_bidi_cache = sresize(term->pre_bidi_cache,
term->bidi_cache_size,
- unsigned long *);
+ termchar *);
term->post_bidi_cache = sresize(term->post_bidi_cache,
term->bidi_cache_size,
- unsigned long *);
+ termchar *);
while (j < term->bidi_cache_size) {
term->pre_bidi_cache[j] = term->post_bidi_cache[j] = NULL;
j++;
sfree(term->pre_bidi_cache[line]);
sfree(term->post_bidi_cache[line]);
- term->pre_bidi_cache[line] = snewn(width, unsigned long);
- term->post_bidi_cache[line] = snewn(width, unsigned long);
+ term->pre_bidi_cache[line] = snewn(width, termchar);
+ term->post_bidi_cache[line] = snewn(width, termchar);
- memcpy(term->pre_bidi_cache[line], lbefore, width * sizeof(unsigned long));
- memcpy(term->post_bidi_cache[line], lafter, width * sizeof(unsigned long));
+ memcpy(term->pre_bidi_cache[line], lbefore, width * TSIZE);
+ memcpy(term->post_bidi_cache[line], lafter, width * TSIZE);
}
/*
static void do_paint(Terminal *term, Context ctx, int may_optimise)
{
int i, it, j, our_curs_y, our_curs_x;
- unsigned long rv, cursor;
+ int rv, cursor;
pos scrpos;
- char ch[1024];
- long cursor_background = ERASE_CHAR;
+ wchar_t ch[1024];
+ termchar cursor_background;
unsigned long ticks;
#ifdef OPTIMISE_SCROLL
struct scrollregion *sr;
#endif /* OPTIMISE_SCROLL */
+ cursor_background = term->basic_erase_char;
+
/*
* Check the visual bell state.
*/
* to display the cursor covering the _whole_ character,
* exactly as if it were one space to the left.
*/
- unsigned long *ldata = lineptr(term->curs.y);
+ termline *ldata = lineptr(term->curs.y);
our_curs_x = term->curs.x;
if (our_curs_x > 0 &&
- (ldata[our_curs_x] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
+ ldata->chars[our_curs_x].chr == UCSWIDE)
our_curs_x--;
+ unlineptr(ldata);
}
- if (term->dispcurs && (term->curstype != cursor ||
- term->dispcurs !=
- term->disptext + our_curs_y * (term->cols + 1) +
- our_curs_x)) {
- if (term->dispcurs > term->disptext &&
- (*term->dispcurs & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
- term->dispcurs[-1] |= ATTR_INVALID;
- if ( (term->dispcurs[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
- term->dispcurs[1] |= ATTR_INVALID;
- *term->dispcurs |= ATTR_INVALID;
+ /*
+ * If the cursor is not where it was last time we painted, and
+ * its previous position is visible on screen, invalidate its
+ * previous position.
+ */
+ if (term->dispcursy >= 0 &&
+ (term->curstype != cursor ||
+ term->dispcursy != our_curs_y ||
+ term->dispcursx != our_curs_x)) {
+ termchar *dispcurs = term->disptext[term->dispcursy]->chars +
+ term->dispcursx;
+
+ if (term->dispcursx > 0 && dispcurs->chr == UCSWIDE)
+ dispcurs[-1].attr |= ATTR_INVALID;
+ if (term->dispcursx < term->cols-1 && dispcurs[1].chr == UCSWIDE)
+ dispcurs[1].attr |= ATTR_INVALID;
+ dispcurs->attr |= ATTR_INVALID;
+
term->curstype = 0;
}
- term->dispcurs = NULL;
+ term->dispcursx = term->dispcursy = -1;
#ifdef OPTIMISE_SCROLL
/* Do scrolls */
/* The normal screen data */
for (i = 0; i < term->rows; i++) {
- unsigned long *ldata;
- int lattr;
- int idx, dirty_line, dirty_run, selected;
- unsigned long attr = 0;
+ termline *ldata;
+ termchar *lchars;
+ int dirty_line, dirty_run, selected;
+ unsigned long attr = 0, cset = 0;
int updated_line = 0;
int start = 0;
int ccount = 0;
scrpos.y = i + term->disptop;
ldata = lineptr(scrpos.y);
- lattr = (ldata[term->cols] & LATTR_MODE);
- idx = i * (term->cols + 1);
- dirty_run = dirty_line = (ldata[term->cols] !=
- term->disptext[idx + term->cols]);
- term->disptext[idx + term->cols] = ldata[term->cols];
+ dirty_run = dirty_line = (ldata->lattr !=
+ term->disptext[i]->lattr);
+ term->disptext[i]->lattr = ldata->lattr;
/* Do Arabic shaping and bidi. */
if(!term->cfg.bidi || !term->cfg.arabicshaping) {
- if (!term_bidi_cache_hit(term, i, ldata, term->cols)) {
+ if (!term_bidi_cache_hit(term, i, ldata->chars, term->cols)) {
for(it=0; it<term->cols ; it++)
{
- int uc = (ldata[it] & 0xFFFF);
+ unsigned long uc = (ldata->chars[it].chr);
switch (uc & CSET_MASK) {
- case ATTR_LINEDRW:
+ case CSET_LINEDRW:
if (!term->cfg.rawcnp) {
uc = term->ucsdata->unitab_xterm[uc & 0xFF];
break;
}
- case ATTR_ASCII:
+ case CSET_ASCII:
uc = term->ucsdata->unitab_line[uc & 0xFF];
break;
- case ATTR_SCOACS:
+ case CSET_SCOACS:
uc = term->ucsdata->unitab_scoacs[uc&0xFF];
break;
}
switch (uc & CSET_MASK) {
- case ATTR_ACP:
+ case CSET_ACP:
uc = term->ucsdata->unitab_font[uc & 0xFF];
break;
- case ATTR_OEMCP:
+ case CSET_OEMCP:
uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
break;
}
- term->wcFrom[it].origwc = term->wcFrom[it].wc = uc;
+ term->wcFrom[it].origwc = term->wcFrom[it].wc =
+ (wchar_t)uc;
term->wcFrom[it].index = it;
}
for(it=0; it<term->cols ; it++)
{
- term->ltemp[it] = ldata[term->wcTo[it].index];
+ term->ltemp[it] = ldata->chars[term->wcTo[it].index];
if (term->wcTo[it].origwc != term->wcTo[it].wc)
- term->ltemp[it] = ((term->ltemp[it] & 0xFFFF0000) |
- term->wcTo[it].wc);
+ term->ltemp[it].chr = term->wcTo[it].wc;
}
- term_bidi_cache_store(term, i, ldata, term->ltemp, term->cols);
- ldata = term->ltemp;
+ term_bidi_cache_store(term, i, ldata->chars,
+ term->ltemp, term->cols);
+ lchars = term->ltemp;
} else {
- ldata = term->post_bidi_cache[i];
+ lchars = term->post_bidi_cache[i];
}
- }
+ } else
+ lchars = ldata->chars;
- for (j = 0; j < term->cols; j++, idx++) {
+ for (j = 0; j < term->cols; j++) {
unsigned long tattr, tchar;
- unsigned long *d = ldata + j;
+ termchar *d = lchars + j;
int break_run;
scrpos.x = j;
- tchar = (*d & (CHAR_MASK | CSET_MASK));
- tattr = (*d & (ATTR_MASK ^ CSET_MASK));
+ tchar = d->chr;
+ tattr = d->attr;
+
switch (tchar & CSET_MASK) {
- case ATTR_ASCII:
+ case CSET_ASCII:
tchar = term->ucsdata->unitab_line[tchar & 0xFF];
break;
- case ATTR_LINEDRW:
+ case CSET_LINEDRW:
tchar = term->ucsdata->unitab_xterm[tchar & 0xFF];
break;
- case ATTR_SCOACS:
+ case CSET_SCOACS:
tchar = term->ucsdata->unitab_scoacs[tchar&0xFF];
break;
}
- tattr |= (tchar & CSET_MASK);
- tchar &= CHAR_MASK;
- if (j < term->cols-1 &&
- (d[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
+ if (j < term->cols-1 && d[1].chr == UCSWIDE)
tattr |= ATTR_WIDE;
/* Video reversing things */
* Check the font we'll _probably_ be using to see if
* the character is wide when we don't want it to be.
*/
- if ((tchar | tattr) != (term->disptext[idx]& ~ATTR_NARROW)) {
- if ((tattr & ATTR_WIDE) == 0 &&
- char_width(ctx, (tchar | tattr) & 0xFFFF) == 2)
+ if (tchar != term->disptext[i]->chars[j].chr ||
+ tattr != (term->disptext[i]->chars[j].attr &~
+ ATTR_NARROW)) {
+ if ((tattr & ATTR_WIDE) == 0 && char_width(ctx, tchar) == 2)
tattr |= ATTR_NARROW;
- } else if (term->disptext[idx]&ATTR_NARROW)
+ } else if (term->disptext[i]->chars[j].attr & ATTR_NARROW)
tattr |= ATTR_NARROW;
/* Cursor here ? Save the 'background' */
if (i == our_curs_y && j == our_curs_x) {
- cursor_background = tattr | tchar;
- term->dispcurs = term->disptext + idx;
+ cursor_background.chr = tchar;
+ cursor_background.attr = tattr;
+ term->dispcursx = j;
+ term->dispcursy = i;
}
- if ((term->disptext[idx] ^ tattr) & ATTR_WIDE)
+ if ((term->disptext[i]->chars[j].attr ^ tattr) & ATTR_WIDE)
dirty_line = TRUE;
break_run = (((tattr ^ attr) & term->attr_mask) ||
j - start >= sizeof(ch));
/* Special hack for VT100 Linedraw glyphs */
- if ((attr & CSET_MASK) == 0x2300 && tchar >= 0xBA
- && tchar <= 0xBD) break_run = TRUE;
+ if (tchar >= 0x23BA && tchar <= 0x23BD)
+ break_run = TRUE;
+
+ /*
+ * Separate out sequences of characters that have the
+ * same CSET, if that CSET is a magic one.
+ */
+ if (CSET_OF(tchar) != cset)
+ break_run = TRUE;
if (!term->ucsdata->dbcs_screenfont && !dirty_line) {
- if ((tchar | tattr) == term->disptext[idx])
+ if (term->disptext[i]->chars[j].chr == tchar &&
+ term->disptext[i]->chars[j].attr == tattr)
break_run = TRUE;
else if (!dirty_run && ccount == 1)
break_run = TRUE;
if (break_run) {
if ((dirty_run || last_run_dirty) && ccount > 0) {
- do_text(ctx, start, i, ch, ccount, attr, lattr);
+ do_text(ctx, start, i, ch, ccount, attr, ldata->lattr);
updated_line = 1;
}
start = j;
ccount = 0;
attr = tattr;
+ cset = CSET_OF(tchar);
if (term->ucsdata->dbcs_screenfont)
last_run_dirty = dirty_run;
dirty_run = dirty_line;
}
- if ((tchar | tattr) != term->disptext[idx])
+ if (term->disptext[i]->chars[j].chr != tchar ||
+ term->disptext[i]->chars[j].attr != tattr)
dirty_run = TRUE;
- ch[ccount++] = (char) tchar;
- term->disptext[idx] = tchar | tattr;
+ ch[ccount++] = (wchar_t) tchar;
+ term->disptext[i]->chars[j].chr = tchar;
+ term->disptext[i]->chars[j].attr = tattr;
/* If it's a wide char step along to the next one. */
if (tattr & ATTR_WIDE) {
if (++j < term->cols) {
- idx++;
d++;
/*
* By construction above, the cursor should not
* Ever.
*/
assert(!(i == our_curs_y && j == our_curs_x));
- if (term->disptext[idx] != *d)
+ if (memcmp(&term->disptext[i]->chars[j],
+ d, sizeof(*d)))
dirty_run = TRUE;
- term->disptext[idx] = *d;
+ term->disptext[i]->chars[j] = *d;
}
}
}
if (dirty_run && ccount > 0) {
- do_text(ctx, start, i, ch, ccount, attr, lattr);
+ do_text(ctx, start, i, ch, ccount, attr, ldata->lattr);
updated_line = 1;
}
/* Cursor on this line ? (and changed) */
if (i == our_curs_y && (term->curstype != cursor || updated_line)) {
- ch[0] = (char) (cursor_background & CHAR_MASK);
- attr = (cursor_background & ATTR_MASK) | cursor;
- do_cursor(ctx, our_curs_x, i, ch, 1, attr, lattr);
+ ch[0] = (wchar_t) cursor_background.chr;
+ attr = cursor_background.attr | cursor;
+ do_cursor(ctx, our_curs_x, i, ch, 1, attr, ldata->lattr);
term->curstype = cursor;
}
+
+ unlineptr(ldata);
}
}
*/
void term_invalidate(Terminal *term)
{
- int i;
+ int i, j;
- for (i = 0; i < term->rows * (term->cols + 1); i++)
- term->disptext[i] = ATTR_INVALID;
+ for (i = 0; i < term->rows; i++)
+ for (j = 0; j < term->cols; j++)
+ term->disptext[i]->chars[j].attr = ATTR_INVALID;
}
/*
if (bottom >= term->rows) bottom = term->rows-1;
for (i = top; i <= bottom && i < term->rows; i++) {
- if ((term->disptext[i * (term->cols + 1) + term->cols] &
- LATTR_MODE) == LATTR_NORM)
+ if (term->disptext[i]->lattr == LATTR_NORM)
for (j = left; j <= right && j < term->cols; j++)
- term->disptext[i * (term->cols + 1) + j] = ATTR_INVALID;
+ term->disptext[i]->chars[j].attr = ATTR_INVALID;
else
for (j = left / 2; j <= right / 2 + 1 && j < term->cols; j++)
- term->disptext[i * (term->cols + 1) + j] = ATTR_INVALID;
+ term->disptext[i]->chars[j].attr = ATTR_INVALID;
}
/* This should happen soon enough, also for some reason it sometimes
while (poslt(top, bottom)) {
int nl = FALSE;
- unsigned long *ldata = lineptr(top.y);
+ termline *ldata = lineptr(top.y);
pos nlpos;
/*
* because in normal selection mode this means we need a
* newline at the end)...
*/
- if (!(ldata[term->cols] & LATTR_WRAPPED)) {
- while (((ldata[nlpos.x - 1] & 0xFF) == 0x20 ||
- (DIRECT_CHAR(ldata[nlpos.x - 1]) &&
- (ldata[nlpos.x - 1] & CHAR_MASK) == 0x20))
- && poslt(top, nlpos))
+ if (!(ldata->lattr & LATTR_WRAPPED)) {
+ while (IS_SPACE_CHR(ldata->chars[nlpos.x - 1].chr) &&
+ poslt(top, nlpos))
decpos(nlpos);
if (poslt(nlpos, bottom))
nl = TRUE;
- } else if (ldata[term->cols] & LATTR_WRAPPED2) {
+ } else if (ldata->lattr & LATTR_WRAPPED2) {
/* Ignore the last char on the line in a WRAPPED2 line. */
decpos(nlpos);
}
sprintf(cbuf, "<U+%04x>", (ldata[top.x] & 0xFFFF));
#else
wchar_t cbuf[16], *p;
- int uc = (ldata[top.x] & 0xFFFF);
+ int uc = ldata->chars[top.x].chr;
int set, c;
if (uc == UCSWIDE) {
}
switch (uc & CSET_MASK) {
- case ATTR_LINEDRW:
+ case CSET_LINEDRW:
if (!term->cfg.rawcnp) {
uc = term->ucsdata->unitab_xterm[uc & 0xFF];
break;
}
- case ATTR_ASCII:
+ case CSET_ASCII:
uc = term->ucsdata->unitab_line[uc & 0xFF];
break;
- case ATTR_SCOACS:
+ case CSET_SCOACS:
uc = term->ucsdata->unitab_scoacs[uc&0xFF];
break;
}
switch (uc & CSET_MASK) {
- case ATTR_ACP:
+ case CSET_ACP:
uc = term->ucsdata->unitab_font[uc & 0xFF];
break;
- case ATTR_OEMCP:
+ case CSET_OEMCP:
uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
break;
}
set = (uc & CSET_MASK);
- c = (uc & CHAR_MASK);
+ c = (uc & ~CSET_MASK);
cbuf[0] = uc;
cbuf[1] = 0;
int rv;
if (is_dbcs_leadbyte(term->ucsdata->font_codepage, (BYTE) c)) {
buf[0] = c;
- buf[1] = (char) (0xFF & ldata[top.x + 1]);
+ buf[1] = (char) (0xFF & ldata->chars[top.x + 1].chr);
rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 2, wbuf, 4);
top.x++;
} else {
}
top.y++;
top.x = rect ? old_top_x : 0;
+
+ unlineptr(ldata);
}
#if SELECTION_NUL_TERMINATED
wblen++;
};
const struct ucsword *wptr;
- uc &= (CSET_MASK | CHAR_MASK);
-
switch (uc & CSET_MASK) {
- case ATTR_LINEDRW:
+ case CSET_LINEDRW:
uc = term->ucsdata->unitab_xterm[uc & 0xFF];
break;
- case ATTR_ASCII:
+ case CSET_ASCII:
uc = term->ucsdata->unitab_line[uc & 0xFF];
break;
- case ATTR_SCOACS:
+ case CSET_SCOACS:
uc = term->ucsdata->unitab_scoacs[uc&0xFF];
break;
}
switch (uc & CSET_MASK) {
- case ATTR_ACP:
+ case CSET_ACP:
uc = term->ucsdata->unitab_font[uc & 0xFF];
break;
- case ATTR_OEMCP:
+ case CSET_OEMCP:
uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
break;
}
- /* For DBCS font's I can't do anything usefull. Even this will sometimes
+ /* For DBCS fonts I can't do anything useful. Even this will sometimes
* fail as there's such a thing as a double width space. :-(
*/
if (term->ucsdata->dbcs_screenfont &&
*/
static pos sel_spread_half(Terminal *term, pos p, int dir)
{
- unsigned long *ldata;
+ termline *ldata;
short wvalue;
int topy = -sblines(term);
* In this mode, every character is a separate unit, except
* for runs of spaces at the end of a non-wrapping line.
*/
- if (!(ldata[term->cols] & LATTR_WRAPPED)) {
- unsigned long *q = ldata + term->cols;
- while (q > ldata && (q[-1] & CHAR_MASK) == 0x20)
+ if (!(ldata->lattr & LATTR_WRAPPED)) {
+ termchar *q = ldata->chars + term->cols;
+ while (q > ldata->chars && IS_SPACE_CHR(q[-1].chr))
q--;
- if (q == ldata + term->cols)
+ if (q == ldata->chars + term->cols)
q--;
- if (p.x >= q - ldata)
- p.x = (dir == -1 ? q - ldata : term->cols - 1);
+ if (p.x >= q - ldata->chars)
+ p.x = (dir == -1 ? q - ldata->chars : term->cols - 1);
}
break;
case SM_WORD:
* In this mode, the units are maximal runs of characters
* whose `wordness' has the same value.
*/
- wvalue = wordtype(term, UCSGET(ldata, p.x));
+ wvalue = wordtype(term, UCSGET(ldata->chars, p.x));
if (dir == +1) {
while (1) {
- int maxcols = (ldata[term->cols] & LATTR_WRAPPED2 ?
+ int maxcols = (ldata->lattr & LATTR_WRAPPED2 ?
term->cols-1 : term->cols);
if (p.x < maxcols-1) {
- if (wordtype(term, UCSGET(ldata, p.x + 1)) == wvalue)
+ if (wordtype(term, UCSGET(ldata->chars, p.x+1)) == wvalue)
p.x++;
else
break;
} else {
- if (ldata[term->cols] & LATTR_WRAPPED) {
- unsigned long *ldata2;
+ if (ldata->lattr & LATTR_WRAPPED) {
+ termline *ldata2;
ldata2 = lineptr(p.y+1);
- if (wordtype(term, UCSGET(ldata2, 0)) == wvalue) {
+ if (wordtype(term, UCSGET(ldata2->chars, 0))
+ == wvalue) {
p.x = 0;
p.y++;
+ unlineptr(ldata);
ldata = ldata2;
- } else
+ } else {
+ unlineptr(ldata2);
break;
+ }
} else
break;
}
} else {
while (1) {
if (p.x > 0) {
- if (wordtype(term, UCSGET(ldata, p.x - 1)) == wvalue)
+ if (wordtype(term, UCSGET(ldata->chars, p.x-1)) == wvalue)
p.x--;
else
break;
} else {
- unsigned long *ldata2;
+ termline *ldata2;
int maxcols;
if (p.y <= topy)
break;
ldata2 = lineptr(p.y-1);
- maxcols = (ldata2[term->cols] & LATTR_WRAPPED2 ?
+ maxcols = (ldata2->lattr & LATTR_WRAPPED2 ?
term->cols-1 : term->cols);
- if (ldata2[term->cols] & LATTR_WRAPPED) {
- if (wordtype(term, UCSGET(ldata2, maxcols-1))
+ if (ldata2->lattr & LATTR_WRAPPED) {
+ if (wordtype(term, UCSGET(ldata2->chars, maxcols-1))
== wvalue) {
p.x = maxcols-1;
p.y--;
+ unlineptr(ldata);
ldata = ldata2;
- } else
+ } else {
+ unlineptr(ldata2);
break;
+ }
} else
break;
}
p.x = (dir == -1 ? 0 : term->cols - 1);
break;
}
+
+ unlineptr(ldata);
return p;
}
Mouse_Action a, int x, int y, int shift, int ctrl, int alt)
{
pos selpoint;
- unsigned long *ldata;
+ termline *ldata;
int raw_mouse = (term->xterm_mouse &&
!term->cfg.no_mouse_rep &&
!(term->cfg.mouse_override && shift));
selpoint.y = y + term->disptop;
selpoint.x = x;
ldata = lineptr(selpoint.y);
- if ((ldata[term->cols] & LATTR_MODE) != LATTR_NORM)
+ if ((ldata->lattr & LATTR_MODE) != LATTR_NORM)
selpoint.x /= 2;
+ unlineptr(ldata);
if (raw_mouse) {
int encstate = 0, r, c;
projects / u / mdw / putty / commitdiff