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Refactor kitty images to use unified image cache API

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The original kitty implementation used a passthrough approach where images
were forwarded directly to the outer terminal without being stored in tmux's
image cache.

This refactors kitty images to work like sixel images.
This commit is contained in:
Thomas Adam
2026-03-03 18:53:58 +00:00
parent aefdb34846
commit 9c3ec2b8eb
8 changed files with 359 additions and 53 deletions
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34
screen-write.c
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@@ -2450,7 +2450,7 @@ screen_write_sixelimage(struct screen_write_ctx *ctx, struct sixel_image *si,
screen_write_collect_flush(ctx, 0, __func__);
screen_write_initctx(ctx, &ttyctx, 0);
ttyctx.ptr = image_store(s, si);
ttyctx.ptr = image_store(s, IMAGE_SIXEL, si);
tty_write(tty_cmd_sixelimage, &ttyctx);
@@ -2458,6 +2458,38 @@ screen_write_sixelimage(struct screen_write_ctx *ctx, struct sixel_image *si,
}
#endif
#ifdef ENABLE_KITTY_IMAGES
void
screen_write_kittyimage(struct screen_write_ctx *ctx, struct kitty_image *ki)
{
struct screen *s = ctx->s;
struct tty_ctx ttyctx;
struct image *im;
if (ki == NULL)
return;
/* Store the image in the cache */
im = image_store(s, IMAGE_KITTY, ki);
/* Trigger a tty write to send to all terminals */
if (im != NULL && ctx->wp != NULL) {
screen_write_collect_flush(ctx, 0, __func__);
screen_write_initctx(ctx, &ttyctx, 0);
ttyctx.ptr = im;
ttyctx.arg = ctx->wp;
ttyctx.ocx = s->cx;
ttyctx.ocy = s->cy;
ttyctx.set_client_cb = tty_set_client_cb;
tty_write(tty_cmd_kittyimage, &ttyctx);
}
/* Move cursor past the image */
if (ki->rows > 0)
screen_write_cursormove(ctx, 0, s->cy + ki->rows, 0);
}
#endif
/* Turn alternate screen on. */
void
screen_write_alternateon(struct screen_write_ctx *ctx, struct grid_cell *gc,