diff options
Diffstat (limited to 'patches/st-scrollback-ringbuffer-0.8.5.diff')
-rw-r--r-- | patches/st-scrollback-ringbuffer-0.8.5.diff | 730 |
1 files changed, 0 insertions, 730 deletions
diff --git a/patches/st-scrollback-ringbuffer-0.8.5.diff b/patches/st-scrollback-ringbuffer-0.8.5.diff deleted file mode 100644 index 7c060c5..0000000 --- a/patches/st-scrollback-ringbuffer-0.8.5.diff +++ /dev/null @@ -1,730 +0,0 @@ -commit 0663bdf11a409961da5b1120741a69814da8ce65 -Author: Timo Röhling <[email protected]> -Date: Tue Nov 23 19:45:33 2021 +0100 - - Terminal scrollback with ring buffer - - This patch adds a ring buffer for scrollback to the terminal. The - advantage of using a ring buffer is that the common case, scrolling with - no static screen content, can be achieved very efficiently by - incrementing and decrementing the starting line (modulo buffer size). - - The scrollback buffer is limited to HISTSIZE lines in order to bound - memory usage. As the lines are allocated on demand, it is possible to - implement unlimited scrollback with few changes. If the terminal is - reset, the scroll back buffer is reset, too. - -diff --git a/config.def.h b/config.def.h -index 91ab8ca..e3b469b 100644 ---- a/config.def.h -+++ b/config.def.h -@@ -201,6 +201,8 @@ static Shortcut shortcuts[] = { - { TERMMOD, XK_Y, selpaste, {.i = 0} }, - { ShiftMask, XK_Insert, selpaste, {.i = 0} }, - { TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, -+ { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} }, -+ { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} }, - }; - - /* -diff --git a/st.c b/st.c -index 51049ba..f9e24ba 100644 ---- a/st.c -+++ b/st.c -@@ -43,6 +43,10 @@ - #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) - #define ISDELIM(u) (u && wcschr(worddelimiters, u)) - -+#define TSCREEN term.screen[IS_SET(MODE_ALTSCREEN)] -+#define TLINEOFFSET(y) (((y) + TSCREEN.cur - TSCREEN.off + TSCREEN.size) % TSCREEN.size) -+#define TLINE(y) (TSCREEN.buffer[TLINEOFFSET(y)]) -+ - enum term_mode { - MODE_WRAP = 1 << 0, - MODE_INSERT = 1 << 1, -@@ -109,12 +113,21 @@ typedef struct { - int alt; - } Selection; - -+/* Screen lines */ -+typedef struct { -+ Line* buffer; /* ring buffer */ -+ int size; /* size of buffer */ -+ int cur; /* start of active screen */ -+ int off; /* scrollback line offset */ -+ TCursor sc; /* saved cursor */ -+} LineBuffer; -+ - /* Internal representation of the screen */ - typedef struct { - int row; /* nb row */ - int col; /* nb col */ -- Line *line; /* screen */ -- Line *alt; /* alternate screen */ -+ LineBuffer screen[2]; /* screen and alternate screen */ -+ int linelen; /* allocated line length */ - int *dirty; /* dirtyness of lines */ - TCursor c; /* cursor */ - int ocx; /* old cursor col */ -@@ -202,6 +215,8 @@ static void tdeftran(char); - static void tstrsequence(uchar); - - static void drawregion(int, int, int, int); -+static void clearline(Line, Glyph, int, int); -+static Line ensureline(Line); - - static void selnormalize(void); - static void selscroll(int, int); -@@ -415,11 +430,12 @@ int - tlinelen(int y) - { - int i = term.col; -+ Line line = TLINE(y); - -- if (term.line[y][i - 1].mode & ATTR_WRAP) -+ if (line[i - 1].mode & ATTR_WRAP) - return i; - -- while (i > 0 && term.line[y][i - 1].u == ' ') -+ while (i > 0 && line[i - 1].u == ' ') - --i; - - return i; -@@ -528,7 +544,7 @@ selsnap(int *x, int *y, int direction) - * Snap around if the word wraps around at the end or - * beginning of a line. - */ -- prevgp = &term.line[*y][*x]; -+ prevgp = &TLINE(*y)[*x]; - prevdelim = ISDELIM(prevgp->u); - for (;;) { - newx = *x + direction; -@@ -543,14 +559,14 @@ selsnap(int *x, int *y, int direction) - yt = *y, xt = *x; - else - yt = newy, xt = newx; -- if (!(term.line[yt][xt].mode & ATTR_WRAP)) -+ if (!(TLINE(yt)[xt].mode & ATTR_WRAP)) - break; - } - - if (newx >= tlinelen(newy)) - break; - -- gp = &term.line[newy][newx]; -+ gp = &TLINE(newy)[newx]; - delim = ISDELIM(gp->u); - if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim - || (delim && gp->u != prevgp->u))) -@@ -571,14 +587,14 @@ selsnap(int *x, int *y, int direction) - *x = (direction < 0) ? 0 : term.col - 1; - if (direction < 0) { - for (; *y > 0; *y += direction) { -- if (!(term.line[*y-1][term.col-1].mode -+ if (!(TLINE(*y-1)[term.col-1].mode - & ATTR_WRAP)) { - break; - } - } - } else if (direction > 0) { - for (; *y < term.row-1; *y += direction) { -- if (!(term.line[*y][term.col-1].mode -+ if (!(TLINE(*y)[term.col-1].mode - & ATTR_WRAP)) { - break; - } -@@ -609,13 +625,13 @@ getsel(void) - } - - if (sel.type == SEL_RECTANGULAR) { -- gp = &term.line[y][sel.nb.x]; -+ gp = &TLINE(y)[sel.nb.x]; - lastx = sel.ne.x; - } else { -- gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0]; -+ gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0]; - lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; - } -- last = &term.line[y][MIN(lastx, linelen-1)]; -+ last = &TLINE(y)[MIN(lastx, linelen-1)]; - while (last >= gp && last->u == ' ') - --last; - -@@ -956,12 +972,15 @@ int - tattrset(int attr) - { - int i, j; -+ int y = TLINEOFFSET(0); - - for (i = 0; i < term.row-1; i++) { -+ Line line = TSCREEN.buffer[y]; - for (j = 0; j < term.col-1; j++) { -- if (term.line[i][j].mode & attr) -+ if (line[j].mode & attr) - return 1; - } -+ y = (y+1) % TSCREEN.size; - } - - return 0; -@@ -983,14 +1002,17 @@ void - tsetdirtattr(int attr) - { - int i, j; -+ int y = TLINEOFFSET(0); - - for (i = 0; i < term.row-1; i++) { -+ Line line = TSCREEN.buffer[y]; - for (j = 0; j < term.col-1; j++) { -- if (term.line[i][j].mode & attr) { -+ if (line[j].mode & attr) { - tsetdirt(i, i); - break; - } - } -+ y = (y+1) % TSCREEN.size; - } - } - -@@ -1003,27 +1025,19 @@ tfulldirt(void) - void - tcursor(int mode) - { -- static TCursor c[2]; -- int alt = IS_SET(MODE_ALTSCREEN); -- - if (mode == CURSOR_SAVE) { -- c[alt] = term.c; -+ TSCREEN.sc = term.c; - } else if (mode == CURSOR_LOAD) { -- term.c = c[alt]; -- tmoveto(c[alt].x, c[alt].y); -+ term.c = TSCREEN.sc; -+ tmoveto(term.c.x, term.c.y); - } - } - - void - treset(void) - { -- uint i; -- -- term.c = (TCursor){{ -- .mode = ATTR_NULL, -- .fg = defaultfg, -- .bg = defaultbg -- }, .x = 0, .y = 0, .state = CURSOR_DEFAULT}; -+ int i, j; -+ Glyph g = (Glyph){ .fg = defaultfg, .bg = defaultbg}; - - memset(term.tabs, 0, term.col * sizeof(*term.tabs)); - for (i = tabspaces; i < term.col; i += tabspaces) -@@ -1035,17 +1049,37 @@ treset(void) - term.charset = 0; - - for (i = 0; i < 2; i++) { -- tmoveto(0, 0); -- tcursor(CURSOR_SAVE); -- tclearregion(0, 0, term.col-1, term.row-1); -- tswapscreen(); -+ term.screen[i].sc = (TCursor){{ -+ .fg = defaultfg, -+ .bg = defaultbg -+ }}; -+ term.screen[i].cur = 0; -+ term.screen[i].off = 0; -+ for (j = 0; j < term.row; ++j) { -+ if (term.col != term.linelen) -+ term.screen[i].buffer[j] = xrealloc(term.screen[i].buffer[j], term.col * sizeof(Glyph)); -+ clearline(term.screen[i].buffer[j], g, 0, term.col); -+ } -+ for (j = term.row; j < term.screen[i].size; ++j) { -+ free(term.screen[i].buffer[j]); -+ term.screen[i].buffer[j] = NULL; -+ } - } -+ tcursor(CURSOR_LOAD); -+ term.linelen = term.col; -+ tfulldirt(); - } - - void - tnew(int col, int row) - { -- term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } }; -+ int i; -+ term = (Term){}; -+ term.screen[0].buffer = xmalloc(HISTSIZE * sizeof(Line)); -+ term.screen[0].size = HISTSIZE; -+ term.screen[1].buffer = NULL; -+ for (i = 0; i < HISTSIZE; ++i) term.screen[0].buffer[i] = NULL; -+ - tresize(col, row); - treset(); - } -@@ -1053,14 +1087,42 @@ tnew(int col, int row) - void - tswapscreen(void) - { -- Line *tmp = term.line; -- -- term.line = term.alt; -- term.alt = tmp; - term.mode ^= MODE_ALTSCREEN; - tfulldirt(); - } - -+void -+kscrollup(const Arg *a) -+{ -+ int n = a->i; -+ -+ if (IS_SET(MODE_ALTSCREEN)) -+ return; -+ -+ if (n < 0) n = (-n) * term.row; -+ if (n > TSCREEN.size - term.row - TSCREEN.off) n = TSCREEN.size - term.row - TSCREEN.off; -+ while (!TLINE(-n)) --n; -+ TSCREEN.off += n; -+ selscroll(0, n); -+ tfulldirt(); -+} -+ -+void -+kscrolldown(const Arg *a) -+{ -+ -+ int n = a->i; -+ -+ if (IS_SET(MODE_ALTSCREEN)) -+ return; -+ -+ if (n < 0) n = (-n) * term.row; -+ if (n > TSCREEN.off) n = TSCREEN.off; -+ TSCREEN.off -= n; -+ selscroll(0, -n); -+ tfulldirt(); -+} -+ - void - tscrolldown(int orig, int n) - { -@@ -1069,15 +1131,29 @@ tscrolldown(int orig, int n) - - LIMIT(n, 0, term.bot-orig+1); - -- tsetdirt(orig, term.bot-n); -- tclearregion(0, term.bot-n+1, term.col-1, term.bot); -+ /* Ensure that lines are allocated */ -+ for (i = -n; i < 0; i++) { -+ TLINE(i) = ensureline(TLINE(i)); -+ } - -- for (i = term.bot; i >= orig+n; i--) { -- temp = term.line[i]; -- term.line[i] = term.line[i-n]; -- term.line[i-n] = temp; -+ /* Shift non-scrolling areas in ring buffer */ -+ for (i = term.bot+1; i < term.row; i++) { -+ temp = TLINE(i); -+ TLINE(i) = TLINE(i-n); -+ TLINE(i-n) = temp; -+ } -+ for (i = 0; i < orig; i++) { -+ temp = TLINE(i); -+ TLINE(i) = TLINE(i-n); -+ TLINE(i-n) = temp; - } - -+ /* Scroll buffer */ -+ TSCREEN.cur = (TSCREEN.cur + TSCREEN.size - n) % TSCREEN.size; -+ /* Clear lines that have entered the view */ -+ tclearregion(0, orig, term.linelen-1, orig+n-1); -+ /* Redraw portion of the screen that has scrolled */ -+ tsetdirt(orig+n-1, term.bot); - selscroll(orig, n); - } - -@@ -1089,15 +1165,29 @@ tscrollup(int orig, int n) - - LIMIT(n, 0, term.bot-orig+1); - -- tclearregion(0, orig, term.col-1, orig+n-1); -- tsetdirt(orig+n, term.bot); -+ /* Ensure that lines are allocated */ -+ for (i = term.row; i < term.row + n; i++) { -+ TLINE(i) = ensureline(TLINE(i)); -+ } - -- for (i = orig; i <= term.bot-n; i++) { -- temp = term.line[i]; -- term.line[i] = term.line[i+n]; -- term.line[i+n] = temp; -+ /* Shift non-scrolling areas in ring buffer */ -+ for (i = orig-1; i >= 0; i--) { -+ temp = TLINE(i); -+ TLINE(i) = TLINE(i+n); -+ TLINE(i+n) = temp; -+ } -+ for (i = term.row-1; i >term.bot; i--) { -+ temp = TLINE(i); -+ TLINE(i) = TLINE(i+n); -+ TLINE(i+n) = temp; - } - -+ /* Scroll buffer */ -+ TSCREEN.cur = (TSCREEN.cur + n) % TSCREEN.size; -+ /* Clear lines that have entered the view */ -+ tclearregion(0, term.bot-n+1, term.linelen-1, term.bot); -+ /* Redraw portion of the screen that has scrolled */ -+ tsetdirt(orig, term.bot-n+1); - selscroll(orig, -n); - } - -@@ -1201,6 +1291,7 @@ tsetchar(Rune u, const Glyph *attr, int x, int y) - "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */ - "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */ - }; -+ Line line = TLINE(y); - - /* - * The table is proudly stolen from rxvt. -@@ -1209,25 +1300,25 @@ tsetchar(Rune u, const Glyph *attr, int x, int y) - BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41]) - utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ); - -- if (term.line[y][x].mode & ATTR_WIDE) { -+ if (line[x].mode & ATTR_WIDE) { - if (x+1 < term.col) { -- term.line[y][x+1].u = ' '; -- term.line[y][x+1].mode &= ~ATTR_WDUMMY; -+ line[x+1].u = ' '; -+ line[x+1].mode &= ~ATTR_WDUMMY; - } -- } else if (term.line[y][x].mode & ATTR_WDUMMY) { -- term.line[y][x-1].u = ' '; -- term.line[y][x-1].mode &= ~ATTR_WIDE; -+ } else if (line[x].mode & ATTR_WDUMMY) { -+ line[x-1].u = ' '; -+ line[x-1].mode &= ~ATTR_WIDE; - } - - term.dirty[y] = 1; -- term.line[y][x] = *attr; -- term.line[y][x].u = u; -+ line[x] = *attr; -+ line[x].u = u; - } - - void - tclearregion(int x1, int y1, int x2, int y2) - { -- int x, y, temp; -+ int x, y, L, S, temp; - Glyph *gp; - - if (x1 > x2) -@@ -1235,15 +1326,16 @@ tclearregion(int x1, int y1, int x2, int y2) - if (y1 > y2) - temp = y1, y1 = y2, y2 = temp; - -- LIMIT(x1, 0, term.col-1); -- LIMIT(x2, 0, term.col-1); -+ LIMIT(x1, 0, term.linelen-1); -+ LIMIT(x2, 0, term.linelen-1); - LIMIT(y1, 0, term.row-1); - LIMIT(y2, 0, term.row-1); - -+ L = TLINEOFFSET(y1); - for (y = y1; y <= y2; y++) { - term.dirty[y] = 1; - for (x = x1; x <= x2; x++) { -- gp = &term.line[y][x]; -+ gp = &TSCREEN.buffer[L][x]; - if (selected(x, y)) - selclear(); - gp->fg = term.c.attr.fg; -@@ -1251,6 +1343,7 @@ tclearregion(int x1, int y1, int x2, int y2) - gp->mode = 0; - gp->u = ' '; - } -+ L = (L + 1) % TSCREEN.size; - } - } - -@@ -1265,7 +1358,7 @@ tdeletechar(int n) - dst = term.c.x; - src = term.c.x + n; - size = term.col - src; -- line = term.line[term.c.y]; -+ line = TLINE(term.c.y); - - memmove(&line[dst], &line[src], size * sizeof(Glyph)); - tclearregion(term.col-n, term.c.y, term.col-1, term.c.y); -@@ -1282,7 +1375,7 @@ tinsertblank(int n) - dst = term.c.x + n; - src = term.c.x; - size = term.col - dst; -- line = term.line[term.c.y]; -+ line = TLINE(term.c.y); - - memmove(&line[dst], &line[src], size * sizeof(Glyph)); - tclearregion(src, term.c.y, dst - 1, term.c.y); -@@ -2103,7 +2196,7 @@ tdumpline(int n) - char buf[UTF_SIZ]; - const Glyph *bp, *end; - -- bp = &term.line[n][0]; -+ bp = &TLINE(n)[0]; - end = &bp[MIN(tlinelen(n), term.col) - 1]; - if (bp != end || bp->u != ' ') { - for ( ; bp <= end; ++bp) -@@ -2486,11 +2579,11 @@ check_control_code: - if (selected(term.c.x, term.c.y)) - selclear(); - -- gp = &term.line[term.c.y][term.c.x]; -+ gp = &TLINE(term.c.y)[term.c.x]; - if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) { - gp->mode |= ATTR_WRAP; - tnewline(1); -- gp = &term.line[term.c.y][term.c.x]; -+ gp = &TLINE(term.c.y)[term.c.x]; - } - - if (IS_SET(MODE_INSERT) && term.c.x+width < term.col) -@@ -2498,7 +2591,7 @@ check_control_code: - - if (term.c.x+width > term.col) { - tnewline(1); -- gp = &term.line[term.c.y][term.c.x]; -+ gp = &TLINE(term.c.y)[term.c.x]; - } - - tsetchar(u, &term.c.attr, term.c.x, term.c.y); -@@ -2529,6 +2622,11 @@ twrite(const char *buf, int buflen, int show_ctrl) - Rune u; - int n; - -+ if (TSCREEN.off) { -+ TSCREEN.off = 0; -+ tfulldirt(); -+ } -+ - for (n = 0; n < buflen; n += charsize) { - if (IS_SET(MODE_UTF8)) { - /* process a complete utf8 char */ -@@ -2555,56 +2653,85 @@ twrite(const char *buf, int buflen, int show_ctrl) - } - - void --tresize(int col, int row) -+clearline(Line line, Glyph g, int x, int xend) - { - int i; -+ g.mode = 0; -+ g.u = ' '; -+ for (i = x; i < xend; ++i) { -+ line[i] = g; -+ } -+} -+ -+Line -+ensureline(Line line) -+{ -+ if (!line) { -+ line = xmalloc(term.linelen * sizeof(Glyph)); -+ } -+ return line; -+} -+ -+void -+tresize(int col, int row) -+{ -+ int i, j; - int minrow = MIN(row, term.row); - int mincol = MIN(col, term.col); -+ int linelen = MAX(col, term.linelen); - int *bp; -- TCursor c; - -- if (col < 1 || row < 1) { -+ if (col < 1 || row < 1 || row > HISTSIZE) { - fprintf(stderr, - "tresize: error resizing to %dx%d\n", col, row); - return; - } - -- /* -- * slide screen to keep cursor where we expect it - -- * tscrollup would work here, but we can optimize to -- * memmove because we're freeing the earlier lines -- */ -- for (i = 0; i <= term.c.y - row; i++) { -- free(term.line[i]); -- free(term.alt[i]); -+ /* Shift buffer to keep the cursor where we expect it */ -+ if (row <= term.c.y) { -+ term.screen[0].cur = (term.screen[0].cur - row + term.c.y + 1) % term.screen[0].size; -+ } -+ -+ /* Resize and clear line buffers as needed */ -+ if (linelen > term.linelen) { -+ for (i = 0; i < term.screen[0].size; ++i) { -+ if (term.screen[0].buffer[i]) { -+ term.screen[0].buffer[i] = xrealloc(term.screen[0].buffer[i], linelen * sizeof(Glyph)); -+ clearline(term.screen[0].buffer[i], term.c.attr, term.linelen, linelen); -+ } -+ } -+ for (i = 0; i < minrow; ++i) { -+ term.screen[1].buffer[i] = xrealloc(term.screen[1].buffer[i], linelen * sizeof(Glyph)); -+ clearline(term.screen[1].buffer[i], term.c.attr, term.linelen, linelen); -+ } - } -- /* ensure that both src and dst are not NULL */ -- if (i > 0) { -- memmove(term.line, term.line + i, row * sizeof(Line)); -- memmove(term.alt, term.alt + i, row * sizeof(Line)); -+ /* Allocate all visible lines for regular line buffer */ -+ for (j = term.screen[0].cur, i = 0; i < row; ++i, j = (j + 1) % term.screen[0].size) -+ { -+ if (!term.screen[0].buffer[j]) { -+ term.screen[0].buffer[j] = xmalloc(linelen * sizeof(Glyph)); -+ } -+ if (i >= term.row) { -+ clearline(term.screen[0].buffer[j], term.c.attr, 0, linelen); -+ } - } -- for (i += row; i < term.row; i++) { -- free(term.line[i]); -- free(term.alt[i]); -+ /* Resize alt screen */ -+ term.screen[1].cur = 0; -+ term.screen[1].size = row; -+ for (i = row; i < term.row; ++i) { -+ free(term.screen[1].buffer[i]); -+ } -+ term.screen[1].buffer = xrealloc(term.screen[1].buffer, row * sizeof(Line)); -+ for (i = term.row; i < row; ++i) { -+ term.screen[1].buffer[i] = xmalloc(linelen * sizeof(Glyph)); -+ clearline(term.screen[1].buffer[i], term.c.attr, 0, linelen); - } - - /* resize to new height */ -- term.line = xrealloc(term.line, row * sizeof(Line)); -- term.alt = xrealloc(term.alt, row * sizeof(Line)); - term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); - term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); - -- /* resize each row to new width, zero-pad if needed */ -- for (i = 0; i < minrow; i++) { -- term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); -- term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph)); -- } -- -- /* allocate any new rows */ -- for (/* i = minrow */; i < row; i++) { -- term.line[i] = xmalloc(col * sizeof(Glyph)); -- term.alt[i] = xmalloc(col * sizeof(Glyph)); -- } -+ /* fix tabstops */ - if (col > term.col) { - bp = term.tabs + term.col; - -@@ -2614,26 +2741,16 @@ tresize(int col, int row) - for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces) - *bp = 1; - } -+ - /* update terminal size */ - term.col = col; - term.row = row; -+ term.linelen = linelen; - /* reset scrolling region */ - tsetscroll(0, row-1); - /* make use of the LIMIT in tmoveto */ - tmoveto(term.c.x, term.c.y); -- /* Clearing both screens (it makes dirty all lines) */ -- c = term.c; -- for (i = 0; i < 2; i++) { -- if (mincol < col && 0 < minrow) { -- tclearregion(mincol, 0, col - 1, minrow - 1); -- } -- if (0 < col && minrow < row) { -- tclearregion(0, minrow, col - 1, row - 1); -- } -- tswapscreen(); -- tcursor(CURSOR_LOAD); -- } -- term.c = c; -+ tfulldirt(); - } - - void -@@ -2645,14 +2762,15 @@ resettitle(void) - void - drawregion(int x1, int y1, int x2, int y2) - { -- int y; -+ int y, L; - -+ L = TLINEOFFSET(y1); - for (y = y1; y < y2; y++) { -- if (!term.dirty[y]) -- continue; -- -- term.dirty[y] = 0; -- xdrawline(term.line[y], x1, y, x2); -+ if (term.dirty[y]) { -+ term.dirty[y] = 0; -+ xdrawline(TSCREEN.buffer[L], x1, y, x2); -+ } -+ L = (L + 1) % TSCREEN.size; - } - } - -@@ -2667,14 +2785,15 @@ draw(void) - /* adjust cursor position */ - LIMIT(term.ocx, 0, term.col-1); - LIMIT(term.ocy, 0, term.row-1); -- if (term.line[term.ocy][term.ocx].mode & ATTR_WDUMMY) -+ if (TLINE(term.ocy)[term.ocx].mode & ATTR_WDUMMY) - term.ocx--; -- if (term.line[term.c.y][cx].mode & ATTR_WDUMMY) -+ if (TLINE(term.c.y)[cx].mode & ATTR_WDUMMY) - cx--; - - drawregion(0, 0, term.col, term.row); -- xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], -- term.ocx, term.ocy, term.line[term.ocy][term.ocx]); -+ if (TSCREEN.off == 0) -+ xdrawcursor(cx, term.c.y, TLINE(term.c.y)[cx], -+ term.ocx, term.ocy, TLINE(term.ocy)[term.ocx]); - term.ocx = cx; - term.ocy = term.c.y; - xfinishdraw(); -diff --git a/st.h b/st.h -index 519b9bd..b48e810 100644 ---- a/st.h -+++ b/st.h -@@ -19,6 +19,7 @@ - - #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b)) - #define IS_TRUECOL(x) (1 << 24 & (x)) -+#define HISTSIZE 2000 - - enum glyph_attribute { - ATTR_NULL = 0, -diff --git a/x.c b/x.c -index 8a16faa..1bb5853 100644 ---- a/x.c -+++ b/x.c -@@ -59,6 +59,8 @@ static void zoom(const Arg *); - static void zoomabs(const Arg *); - static void zoomreset(const Arg *); - static void ttysend(const Arg *); -+void kscrollup(const Arg *); -+void kscrolldown(const Arg *); - - /* config.h for applying patches and the configuration. */ - #include "config.h" |