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Track sprite positions in the Cell structure

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Kovid Goyal
2017-09-08 13:51:35 +05:30
parent a8d5ad2c1a
commit c4680aae2c
4 changed files with 58 additions and 5 deletions
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12
kitty/lineops.h
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@@ -8,12 +8,23 @@
#include "data-types.h"
static inline void
update_sprites_in_line(Cell *cells, index_type xnum) {
if (LIKELY(xnum > 0)) {
set_sprite_position(cells, NULL);
for (index_type i = 1; i < xnum; i++) {
set_sprite_position(cells + i, cells + i - 1);
}
}
}
static inline void
set_attribute_on_line(Cell *cells, uint32_t shift, uint32_t val, index_type xnum) {
uint32_t mask = shift == DECORATION_SHIFT ? 3 : 1;
uint32_t aval = (val & mask) << (ATTRS_SHIFT + shift);
mask = ~(mask << (ATTRS_SHIFT + shift));
for (index_type i = 0; i < xnum; i++) cells[i].ch = (cells[i].ch & mask) | aval;
if (shift == BOLD_SHIFT || shift == ITALIC_SHIFT) update_sprites_in_line(cells, xnum);
}
static inline void
@@ -28,6 +39,7 @@ copy_line(const Line *src, Line *dest) {
static inline void
clear_chars_in_line(Cell *cells, index_type xnum, char_type ch) {
// Clear only the char part of each cell, the rest must have been cleared by a memset or similar
char_type c = (1 << ATTRS_SHIFT) | ch;
for (index_type i = 0; i < xnum; i++) cells[i].ch = c;
}