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Crop and scale images as needed when drawing them.

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This commit is contained in:
Nicholas Marriott
2019-11-28 13:21:40 +00:00
parent e24acc0b5c
commit e01df67ca1
5 changed files with 60 additions and 24 deletions
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42
tty.c
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@@ -1867,15 +1867,45 @@ tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
}
void
tty_cmd_rawsixel(struct tty *tty, const struct tty_ctx *ctx)
tty_cmd_sixelimage(struct tty *tty, const struct tty_ctx *ctx)
{
int flags = (tty->term->flags|tty->term_flags);
struct window_pane *wp = ctx->wp;
struct screen *s = wp->screen;
struct sixel_image *si = ctx->ptr;
struct sixel_image *new;
int flags = (tty->term->flags|tty->term_flags);
char *data;
size_t size;
u_int cx = s->cx, cy = s->cy, sx, sy;
u_int i, j, x, y, rx, ry;
if ((flags & TERM_SIXEL) || tty_term_has(tty->term, TTYC_SXL)) {
tty_add(tty, ctx->ptr, ctx->num);
if (!ctx->more)
tty_invalidate(tty);
if ((~flags & TERM_SIXEL) && tty_term_has(tty->term, TTYC_SXL))
return;
if (tty->xpixel == 0 || tty->ypixel == 0)
return;
sixel_size_in_cells(si, &sx, &sy);
if (sx > wp->sx - cx)
sx = wp->sx - cx;
if (sy > wp->sy - cy)
sy = wp->sy - cy;
if (!tty_clamp_area(tty, ctx, cx, cy, sx, sy, &i, &j, &x, &y, &rx, &ry))
return;
new = sixel_scale(si, tty->xpixel, tty->ypixel, i, j, rx, ry);
if (new == NULL)
return;
data = sixel_print(new, si, &size);
if (data != NULL) {
log_debug("%s: %zu bytes: %s", __func__, size, data);
tty_cursor(tty, x, y);
tty_add(tty, data, size);
tty_invalidate(tty);
free(data);
}
sixel_free(new);
}
static void