39 static int vterm_screen_set_cell(VTermScreen *screen, VTermPos pos, const VTermScreenCell *cell);
71 static inline ScreenCell *getcell(const VTermScreen *screen, int row, int col)  in getcell()  argument
73   if(row < 0 || row >= screen->rows)  in getcell()
75   if(col < 0 || col >= screen->cols)  in getcell()
77   return screen->buffer + (screen->cols * row) + col;  in getcell()
80 static ScreenCell *realloc_buffer(VTermScreen *screen, ScreenCell *buffer, int new_rows, int new_co…  in realloc_buffer()  argument
82 …ScreenCell *new_buffer = vterm_allocator_malloc(screen->vt, sizeof(ScreenCell) * new_rows * new_co…  in realloc_buffer()
88       if(buffer && row < screen->rows && col < screen->cols)  in realloc_buffer()
89         *new_cell = buffer[row * screen->cols + col];  in realloc_buffer()
92         new_cell->pen = screen->pen;  in realloc_buffer()
98     vterm_allocator_free(screen->vt, buffer);  in realloc_buffer()
103 static void damagerect(VTermScreen *screen, VTermRect rect)  in damagerect()  argument
107   switch(screen->damage_merge) {  in damagerect()
118       vterm_screen_flush_damage(screen);  in damagerect()
121     else if(screen->damaged.start_row == -1) {  in damagerect()
123       screen->damaged = rect;  in damagerect()
126     else if(rect.start_row == screen->damaged.start_row) {  in damagerect()
128       if(screen->damaged.start_col > rect.start_col)  in damagerect()
129         screen->damaged.start_col = rect.start_col;  in damagerect()
130       if(screen->damaged.end_col < rect.end_col)  in damagerect()
131         screen->damaged.end_col = rect.end_col;  in damagerect()
136       emit = screen->damaged;  in damagerect()
137       screen->damaged = rect;  in damagerect()
144     if(screen->damaged.start_row == -1)  in damagerect()
145       screen->damaged = rect;  in damagerect()
147       rect_expand(&screen->damaged, &rect);  in damagerect()
152     DEBUG_LOG("TODO: Maybe merge damage for level %d\n", screen->damage_merge);  in damagerect()
156   if(screen->callbacks && screen->callbacks->damage)  in damagerect()
157     (*screen->callbacks->damage)(emit, screen->cbdata);  in damagerect()
160 static void damagescreen(VTermScreen *screen)  in damagescreen()  argument
164     .end_row   = screen->rows,  in damagescreen()
166     .end_col   = screen->cols,  in damagescreen()
169   damagerect(screen, rect);  in damagescreen()
174   VTermScreen *screen = user;  in putglyph()  local
175   ScreenCell *cell = getcell(screen, pos.row, pos.col);  in putglyph()
183     cell->pen = screen->pen;  in putglyph()
189     getcell(screen, pos.row, pos.col + col)->chars[0] = (uint32_t)-1;  in putglyph()
202   damagerect(screen, rect);  in putglyph()
209   VTermScreen *screen = user;  in moverect_internal()  local
211   if(screen->callbacks && screen->callbacks->sb_pushline &&  in moverect_internal()
213      dest.end_col == screen->cols &&                // full width  in moverect_internal()
214      screen->buffer == screen->buffers[0]) {        // not altscreen  in moverect_internal()
217       for(pos.col = 0; pos.col < screen->cols; pos.col++)  in moverect_internal()
218         vterm_screen_get_cell(screen, pos, screen->sb_buffer + pos.col);  in moverect_internal()
220       (screen->callbacks->sb_pushline)(screen->cols, screen->sb_buffer, screen->cbdata);  in moverect_internal()
240     memmove(getcell(screen, row, dest.start_col),  in moverect_internal()
241             getcell(screen, row + downward, src.start_col),  in moverect_internal()
249   VTermScreen *screen = user;  in moverect_user()  local
251   if(screen->callbacks && screen->callbacks->moverect) {  in moverect_user()
252     if(screen->damage_merge != VTERM_DAMAGE_SCROLL)  in moverect_user()
254       vterm_screen_flush_damage(screen);  in moverect_user()
256     if((*screen->callbacks->moverect)(dest, src, screen->cbdata))  in moverect_user()
260   damagerect(screen, dest);  in moverect_user()
267   VTermScreen *screen = user;  in erase_internal()  local
269   for(int row = rect.start_row; row < screen->state->rows && row < rect.end_row; row++) {  in erase_internal()
270     const VTermLineInfo *info = vterm_state_get_lineinfo(screen->state, row);  in erase_internal()
273       ScreenCell *cell = getcell(screen, row, col);  in erase_internal()
279       cell->pen = screen->pen;  in erase_internal()
290   VTermScreen *screen = user;  in erase_user()  local
292   damagerect(screen, rect);  in erase_user()
305   VTermScreen *screen = user;  in scrollrect()  local
307   if(screen->damage_merge != VTERM_DAMAGE_SCROLL) {  in scrollrect()
309         moverect_internal, erase_internal, screen);  in scrollrect()
311     vterm_screen_flush_damage(screen);  in scrollrect()
314         moverect_user, erase_user, screen);  in scrollrect()
319   if(screen->damaged.start_row != -1 &&  in scrollrect()
320      !rect_intersects(&rect, &screen->damaged)) {  in scrollrect()
321     vterm_screen_flush_damage(screen);  in scrollrect()
324   if(screen->pending_scrollrect.start_row == -1) {  in scrollrect()
325     screen->pending_scrollrect = rect;  in scrollrect()
326     screen->pending_scroll_downward  = downward;  in scrollrect()
327     screen->pending_scroll_rightward = rightward;  in scrollrect()
329   else if(rect_equal(&screen->pending_scrollrect, &rect) &&  in scrollrect()
330      ((screen->pending_scroll_downward  == 0 && downward  == 0) ||  in scrollrect()
331       (screen->pending_scroll_rightward == 0 && rightward == 0))) {  in scrollrect()
332     screen->pending_scroll_downward  += downward;  in scrollrect()
333     screen->pending_scroll_rightward += rightward;  in scrollrect()
336     vterm_screen_flush_damage(screen);  in scrollrect()
338     screen->pending_scrollrect = rect;  in scrollrect()
339     screen->pending_scroll_downward  = downward;  in scrollrect()
340     screen->pending_scroll_rightward = rightward;  in scrollrect()
344       moverect_internal, erase_internal, screen);  in scrollrect()
346   if(screen->damaged.start_row == -1)  in scrollrect()
349   if(rect_contains(&rect, &screen->damaged)) {  in scrollrect()
351     vterm_rect_move(&screen->damaged, -downward, -rightward);  in scrollrect()
352     rect_clip(&screen->damaged, &rect);  in scrollrect()
359   else if(rect.start_col <= screen->damaged.start_col &&  in scrollrect()
360           rect.end_col   >= screen->damaged.end_col &&  in scrollrect()
362     if(screen->damaged.start_row >= rect.start_row &&  in scrollrect()
363        screen->damaged.start_row  < rect.end_row) {  in scrollrect()
364       screen->damaged.start_row -= downward;  in scrollrect()
365       if(screen->damaged.start_row < rect.start_row)  in scrollrect()
366         screen->damaged.start_row = rect.start_row;  in scrollrect()
367       if(screen->damaged.start_row > rect.end_row)  in scrollrect()
368         screen->damaged.start_row = rect.end_row;  in scrollrect()
370     if(screen->damaged.end_row >= rect.start_row &&  in scrollrect()
371        screen->damaged.end_row  < rect.end_row) {  in scrollrect()
372       screen->damaged.end_row -= downward;  in scrollrect()
373       if(screen->damaged.end_row < rect.start_row)  in scrollrect()
374         screen->damaged.end_row = rect.start_row;  in scrollrect()
375       if(screen->damaged.end_row > rect.end_row)  in scrollrect()
376         screen->damaged.end_row = rect.end_row;  in scrollrect()
381         ARGSrect(screen->damaged), ARGSrect(rect));  in scrollrect()
389   VTermScreen *screen = user;  in movecursor()  local
391   if(screen->callbacks && screen->callbacks->movecursor)  in movecursor()
392     return (*screen->callbacks->movecursor)(pos, oldpos, visible, screen->cbdata);  in movecursor()
399   VTermScreen *screen = user;  in setpenattr()  local
403     screen->pen.bold = val->boolean;  in setpenattr()
406     screen->pen.underline = val->number;  in setpenattr()
409     screen->pen.italic = val->boolean;  in setpenattr()
412     screen->pen.blink = val->boolean;  in setpenattr()
415     screen->pen.reverse = val->boolean;  in setpenattr()
418     screen->pen.strike = val->boolean;  in setpenattr()
421     screen->pen.font = val->number;  in setpenattr()
424     screen->pen.fg = val->color;  in setpenattr()
427     screen->pen.bg = val->color;  in setpenattr()
439   VTermScreen *screen = user;  in settermprop()  local
443     if(val->boolean && !screen->buffers[1])  in settermprop()
446     screen->buffer = val->boolean ? screen->buffers[1] : screen->buffers[0];  in settermprop()
451       damagescreen(screen);  in settermprop()
454     screen->global_reverse = val->boolean;  in settermprop()
455     damagescreen(screen);  in settermprop()
461   if(screen->callbacks && screen->callbacks->settermprop)  in settermprop()
462     return (*screen->callbacks->settermprop)(prop, val, screen->cbdata);  in settermprop()
469   VTermScreen *screen = user;  in bell()  local
471   if(screen->callbacks && screen->callbacks->bell)  in bell()
472     return (*screen->callbacks->bell)(screen->cbdata);  in bell()
479   VTermScreen *screen = user;  in resize()  local
481   int is_altscreen = (screen->buffers[1] && screen->buffer == screen->buffers[1]);  in resize()
483   int old_rows = screen->rows;  in resize()
484   int old_cols = screen->cols;  in resize()
490     VTermPos cursor = screen->state->pos;  in resize()
493       if(!vterm_screen_is_eol(screen, pos) || cursor.row == pos.row)  in resize()
505       vterm_screen_flush_damage(screen);  in resize()
511   screen->buffers[0] = realloc_buffer(screen, screen->buffers[0], new_rows, new_cols);  in resize()
512   if(screen->buffers[1])  in resize()
513     screen->buffers[1] = realloc_buffer(screen, screen->buffers[1], new_rows, new_cols);  in resize()
515   screen->buffer = is_altscreen ? screen->buffers[1] : screen->buffers[0];  in resize()
517   screen->rows = new_rows;  in resize()
518   screen->cols = new_cols;  in resize()
520   if(screen->sb_buffer)  in resize()
521     vterm_allocator_free(screen->vt, screen->sb_buffer);  in resize()
523   screen->sb_buffer = vterm_allocator_malloc(screen->vt, sizeof(VTermScreenCell) * new_cols);  in resize()
532     damagerect(screen, rect);  in resize()
536     if(!is_altscreen && screen->callbacks && screen->callbacks->sb_popline) {  in resize()
539         if(!(screen->callbacks->sb_popline(screen->cols, screen->sb_buffer, screen->cbdata)))  in resize()
544           .end_row   = screen->rows,  in resize()
546           .end_col   = screen->cols,  in resize()
551         for(pos.col = 0; pos.col < screen->cols; pos.col += screen->sb_buffer[pos.col].width)  in resize()
552           vterm_screen_set_cell(screen, pos, screen->sb_buffer + pos.col);  in resize()
555         damagerect(screen, rect);  in resize()
557         vterm_screen_flush_damage(screen);  in resize()
570     damagerect(screen, rect);  in resize()
573   if(screen->callbacks && screen->callbacks->resize)  in resize()
574     return (*screen->callbacks->resize)(new_rows, new_cols, screen->cbdata);  in resize()
581   VTermScreen *screen = user;  in setlineinfo()  local
585     for(int col = 0; col < screen->cols; col++) {  in setlineinfo()
586       ScreenCell *cell = getcell(screen, row, col);  in setlineinfo()
595       .end_col   = newinfo->doublewidth ? screen->cols / 2 : screen->cols,  in setlineinfo()
597     damagerect(screen, rect);  in setlineinfo()
600       rect.start_col = screen->cols / 2;  in setlineinfo()
601       rect.end_col   = screen->cols;  in setlineinfo()
628   VTermScreen *screen = vterm_allocator_malloc(vt, sizeof(VTermScreen));  in screen_new()  local
633   screen->vt = vt;  in screen_new()
634   screen->state = state;  in screen_new()
636   screen->damage_merge = VTERM_DAMAGE_CELL;  in screen_new()
637   screen->damaged.start_row = -1;  in screen_new()
638   screen->pending_scrollrect.start_row = -1;  in screen_new()
640   screen->rows = rows;  in screen_new()
641   screen->cols = cols;  in screen_new()
643   screen->callbacks = NULL;  in screen_new()
644   screen->cbdata    = NULL;  in screen_new()
646   screen->buffers[0] = realloc_buffer(screen, NULL, rows, cols);  in screen_new()
648   screen->buffer = screen->buffers[0];  in screen_new()
650   screen->sb_buffer = vterm_allocator_malloc(screen->vt, sizeof(VTermScreenCell) * cols);  in screen_new()
652   vterm_state_set_callbacks(screen->state, &state_cbs, screen);  in screen_new()
654   return screen;  in screen_new()
657 INTERNAL void vterm_screen_free(VTermScreen *screen)  in vterm_screen_free()  argument
659   vterm_allocator_free(screen->vt, screen->buffers[0]);  in vterm_screen_free()
660   if(screen->buffers[1])  in vterm_screen_free()
661     vterm_allocator_free(screen->vt, screen->buffers[1]);  in vterm_screen_free()
663   vterm_allocator_free(screen->vt, screen->sb_buffer);  in vterm_screen_free()
665   vterm_allocator_free(screen->vt, screen);  in vterm_screen_free()
668 void vterm_screen_reset(VTermScreen *screen, int hard)  in vterm_screen_reset()  argument
670   screen->damaged.start_row = -1;  in vterm_screen_reset()
671   screen->pending_scrollrect.start_row = -1;  in vterm_screen_reset()
672   vterm_state_reset(screen->state, hard);  in vterm_screen_reset()
673   vterm_screen_flush_damage(screen);  in vterm_screen_reset()
676 static size_t _get_chars(const VTermScreen *screen, const int utf8, void *buffer, size_t len, const…  in _get_chars()  argument
698       ScreenCell *cell = getcell(screen, row, col);  in _get_chars()
726 size_t vterm_screen_get_chars(const VTermScreen *screen, uint32_t *chars, size_t len, const VTermRe…  in vterm_screen_get_chars()  argument
728   return _get_chars(screen, 0, chars, len, rect);  in vterm_screen_get_chars()
731 size_t vterm_screen_get_text(const VTermScreen *screen, char *str, size_t len, const VTermRect rect)  in vterm_screen_get_text()  argument
733   return _get_chars(screen, 1, str, len, rect);  in vterm_screen_get_text()
737 int vterm_screen_get_cell(const VTermScreen *screen, VTermPos pos, VTermScreenCell *cell)  in vterm_screen_get_cell()  argument
739   ScreenCell *intcell = getcell(screen, pos.row, pos.col);  in vterm_screen_get_cell()
753   cell->attrs.reverse   = intcell->pen.reverse ^ screen->global_reverse;  in vterm_screen_get_cell()
763   if(pos.col < (screen->cols - 1) &&  in vterm_screen_get_cell()
764      getcell(screen, pos.row, pos.col + 1)->chars[0] == (uint32_t)-1)  in vterm_screen_get_cell()
774 static int vterm_screen_set_cell(VTermScreen *screen, VTermPos pos, const VTermScreenCell *cell)  in vterm_screen_set_cell()  argument
776   ScreenCell *intcell = getcell(screen, pos.row, pos.col);  in vterm_screen_set_cell()
790   intcell->pen.reverse   = cell->attrs.reverse ^ screen->global_reverse;  in vterm_screen_set_cell()
798     getcell(screen, pos.row, pos.col + 1)->chars[0] = (uint32_t)-1;  in vterm_screen_set_cell()
803 int vterm_screen_is_eol(const VTermScreen *screen, VTermPos pos)  in vterm_screen_is_eol()  argument
806   for(; pos.col < screen->cols; pos.col++) {  in vterm_screen_is_eol()
807     ScreenCell *cell = getcell(screen, pos.row, pos.col);  in vterm_screen_is_eol()
817   if(vt->screen)  in vterm_obtain_screen()
818     return vt->screen;  in vterm_obtain_screen()
820   VTermScreen *screen = screen_new(vt);  in vterm_obtain_screen()  local
821   vt->screen = screen;  in vterm_obtain_screen()
823   return screen;  in vterm_obtain_screen()
826 void vterm_screen_enable_altscreen(VTermScreen *screen, int altscreen)  in vterm_screen_enable_altscreen()  argument
829   if(!screen->buffers[1] && altscreen) {  in vterm_screen_enable_altscreen()
831     vterm_get_size(screen->vt, &rows, &cols);  in vterm_screen_enable_altscreen()
833     screen->buffers[1] = realloc_buffer(screen, NULL, rows, cols);  in vterm_screen_enable_altscreen()
837 void vterm_screen_set_callbacks(VTermScreen *screen, const VTermScreenCallbacks *callbacks, void *u…  in vterm_screen_set_callbacks()  argument
839   screen->callbacks = callbacks;  in vterm_screen_set_callbacks()
840   screen->cbdata = user;  in vterm_screen_set_callbacks()
843 void *vterm_screen_get_cbdata(VTermScreen *screen)  in vterm_screen_get_cbdata()  argument
845   return screen->cbdata;  in vterm_screen_get_cbdata()
848 void vterm_screen_set_unrecognised_fallbacks(VTermScreen *screen, const VTermParserCallbacks *fallb…  in vterm_screen_set_unrecognised_fallbacks()  argument
850   vterm_state_set_unrecognised_fallbacks(screen->state, fallbacks, user);  in vterm_screen_set_unrecognised_fallbacks()
853 void *vterm_screen_get_unrecognised_fbdata(VTermScreen *screen)  in vterm_screen_get_unrecognised_fbdata()  argument
855   return vterm_state_get_unrecognised_fbdata(screen->state);  in vterm_screen_get_unrecognised_fbdata()
858 void vterm_screen_flush_damage(VTermScreen *screen)  in vterm_screen_flush_damage()  argument
860   if(screen->pending_scrollrect.start_row != -1) {  in vterm_screen_flush_damage()
861 …vterm_scroll_rect(screen->pending_scrollrect, screen->pending_scroll_downward, screen->pending_scr…  in vterm_screen_flush_damage()
862         moverect_user, erase_user, screen);  in vterm_screen_flush_damage()
864     screen->pending_scrollrect.start_row = -1;  in vterm_screen_flush_damage()
867   if(screen->damaged.start_row != -1) {  in vterm_screen_flush_damage()
868     if(screen->callbacks && screen->callbacks->damage)  in vterm_screen_flush_damage()
869       (*screen->callbacks->damage)(screen->damaged, screen->cbdata);  in vterm_screen_flush_damage()
871     screen->damaged.start_row = -1;  in vterm_screen_flush_damage()
875 void vterm_screen_set_damage_merge(VTermScreen *screen, VTermDamageSize size)  in vterm_screen_set_damage_merge()  argument
877   vterm_screen_flush_damage(screen);  in vterm_screen_set_damage_merge()
878   screen->damage_merge = size;  in vterm_screen_set_damage_merge()
905 int vterm_screen_get_attrs_extent(const VTermScreen *screen, VTermRect *extent, VTermPos pos, VTerm…  in vterm_screen_get_attrs_extent()  argument
907   ScreenCell *target = getcell(screen, pos.row, pos.col);  in vterm_screen_get_attrs_extent()
916     extent->end_col = screen->cols;  in vterm_screen_get_attrs_extent()
921     if(attrs_differ(attrs, target, getcell(screen, pos.row, col)))  in vterm_screen_get_attrs_extent()
926     if(attrs_differ(attrs, target, getcell(screen, pos.row, col)))  in vterm_screen_get_attrs_extent()
933 void vterm_screen_convert_color_to_rgb(const VTermScreen *screen, VTermColor *col)  in vterm_screen_convert_color_to_rgb()  argument
935   vterm_state_convert_color_to_rgb(screen->state, col);  in vterm_screen_convert_color_to_rgb()