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Store line widths in the bidi cache, so we don't fail to re-bidi a

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line when the window size changes.

[originally from svn r4631]
This commit is contained in:
Simon Tatham 2004-10-15 11:11:19 +00:00
parent 0d05595db9
commit 6b136f5c2f
2 changed files with 28 additions and 15 deletions
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36
terminal.c
View File

@ -1294,8 +1294,8 @@ void term_free(Terminal *term)
sfree(term->wcTo);
for (i = 0; i < term->bidi_cache_size; i++) {
sfree(term->pre_bidi_cache[i]);
sfree(term->post_bidi_cache[i]);
sfree(term->pre_bidi_cache[i].chars);
sfree(term->post_bidi_cache[i].chars);
}
sfree(term->pre_bidi_cache);
sfree(term->post_bidi_cache);
@ -4161,11 +4161,14 @@ static int term_bidi_cache_hit(Terminal *term, int line,
if (line >= term->bidi_cache_size)
return FALSE; /* cache doesn't have this many lines */
if (!term->pre_bidi_cache[line])
if (!term->pre_bidi_cache[line].chars)
return FALSE; /* cache doesn't contain _this_ line */
if (term->pre_bidi_cache[line].width != width)
return FALSE; /* line is wrong width */
for (i = 0; i < width; i++)
if (!termchars_equal(term->pre_bidi_cache[line] + i, lbefore + i))
if (!termchars_equal(term->pre_bidi_cache[line].chars+i, lbefore+i))
return FALSE; /* line doesn't match cache */
return TRUE; /* it didn't match. */
@ -4179,24 +4182,29 @@ static void term_bidi_cache_store(Terminal *term, int line, termchar *lbefore,
term->bidi_cache_size = line+1;
term->pre_bidi_cache = sresize(term->pre_bidi_cache,
term->bidi_cache_size,
termchar *);
struct bidi_cache_entry);
term->post_bidi_cache = sresize(term->post_bidi_cache,
term->bidi_cache_size,
termchar *);
struct bidi_cache_entry);
while (j < term->bidi_cache_size) {
term->pre_bidi_cache[j] = term->post_bidi_cache[j] = NULL;
term->pre_bidi_cache[j].chars =
term->post_bidi_cache[j].chars = NULL;
term->pre_bidi_cache[j].width =
term->post_bidi_cache[j].width = -1;
j++;
}
}
sfree(term->pre_bidi_cache[line]);
sfree(term->post_bidi_cache[line]);
sfree(term->pre_bidi_cache[line].chars);
sfree(term->post_bidi_cache[line].chars);
term->pre_bidi_cache[line] = snewn(width, termchar);
term->post_bidi_cache[line] = snewn(width, termchar);
term->pre_bidi_cache[line].width = width;
term->pre_bidi_cache[line].chars = snewn(width, termchar);
term->post_bidi_cache[line].width = width;
term->post_bidi_cache[line].chars = snewn(width, termchar);
memcpy(term->pre_bidi_cache[line], lbefore, width * TSIZE);
memcpy(term->post_bidi_cache[line], lafter, width * TSIZE);
memcpy(term->pre_bidi_cache[line].chars, lbefore, width * TSIZE);
memcpy(term->post_bidi_cache[line].chars, lafter, width * TSIZE);
}
/*
@ -4399,7 +4407,7 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise)
lchars = term->ltemp;
} else {
lchars = term->post_bidi_cache[i];
lchars = term->post_bidi_cache[i].chars;
}
} else
lchars = ldata->chars;

7
terminal.h
View File

@ -65,6 +65,11 @@ struct termline {
struct termchar *chars;
};
struct bidi_cache_entry {
int width;
struct termchar *chars;
};
struct terminal_tag {
int compatibility_level;
@ -247,7 +252,7 @@ struct terminal_tag {
int ltemp_size;
bidi_char *wcFrom, *wcTo;
int wcFromTo_size;
termchar **pre_bidi_cache, **post_bidi_cache;
struct bidi_cache_entry *pre_bidi_cache, *post_bidi_cache;
int bidi_cache_size;
};