tmux/image.c

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Merge SIXEL branch. Squashed commit of the following: commit 6ebc3feb4671d9b25b3db99d3c16b2323b8e3d02 Author: topcat001 <anindya49@hotmail.com> Date: Sun Aug 20 16:09:51 2023 -0700 Remove redundant {}. commit 6f013fce39602c259a5be2d690d548c73e51cccc Author: topcat001 <anindya49@hotmail.com> Date: Sun Aug 20 16:02:15 2023 -0700 Revert "Do not defer redraw if it is just the status line (will need to do more here I" This reverts commit 0a15bbf3f1972dc84c5c84d5128024c1bc4c0074. commit e6322b4196d73c975ba2e73633e6de9c46779059 Author: topcat001 <anindya49@hotmail.com> Date: Sun Aug 20 15:46:59 2023 -0700 Fix placeholder label and clean up. commit 5896ac52a1f72056a75480b3e1ada328f239df9b Merge: ad982330 e3a8b843 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Fri Aug 18 17:00:03 2023 +0100 Merge branch 'master' into sixel commit ad98233066b72547aee7fa0c87838847ee7f1ece Author: topcat001 <anindya49@hotmail.com> Date: Tue Aug 15 13:57:08 2023 -0700 Better text placeholder. commit 312d83252c27fc4d09d09d121bf7573336e3cdca Merge: 14b8b524 3d93b0c5 Author: topcat001 <anindya49@hotmail.com> Date: Tue Aug 15 13:39:22 2023 -0700 Merge remote-tracking branch 'origin/master' into sixel commit 14b8b524523a7d5a4e42f7dfa346905c604c91e2 Merge: 4baf7642 fda39377 Author: topcat001 <anindya49@hotmail.com> Date: Sat Jul 22 17:29:10 2023 -0700 Merge branch 'master' into sixel commit 4baf76422fadb216bf27b47645b52da3379e7dea Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Wed Jun 21 07:43:53 2023 +0100 Both files can go on one line. commit 4c92acf6ff24dde37ad41cd168ea2d3bcefb8567 Author: topcat001 <anindya49@hotmail.com> Date: Sat Jun 17 17:53:01 2023 -0700 Merge topcat001/tmux/sixel. commit 6794facc82e98f8448c192913cf62fe6e10fde63 Merge: 7b85f5ad f41c536f Author: topcat001 <anindya49@hotmail.com> Date: Sat Jun 17 17:21:02 2023 -0700 Merge remote-tracking branch 'origin/master' into sixel commit 7b85f5adf9a5094db580ca98e4d2231d8d5b5a4f Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Jun 8 12:55:03 2023 +0100 Do not require passthrough for SIXEL. commit a6ee55e0925cac35d011c188db2da0421fc09be1 Merge: 6da391f4 fe385b18 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Jun 8 12:19:55 2023 +0100 Merge branch 'master' into sixel commit 6da391f460414ed3dde23e5ab6ca3fe8e988ce51 Merge: 0d71e585 0eb5d254 Author: topcat001 <anindya49@hotmail.com> Date: Sat May 20 17:05:55 2023 -0700 Merge branch 'master' into sixel commit 0d71e5853ffe797f90b815ac3af25ac0ad92ab07 Merge: 64368a1a fbe6fe7f Author: topcat001 <anindya49@hotmail.com> Date: Sat Apr 29 17:32:07 2023 -0700 Merge branch 'master' into sixel commit 64368a1a63f04fb877b57e4286c9a2e1efe966c9 Merge: c630a56a 22eb0334 Author: topcat001 <anindya49@hotmail.com> Date: Thu Mar 30 14:21:09 2023 -0700 Merge branch 'master' into sixel commit c630a56a621b9761eed558cbd566a36cb09adf8f Merge: 34c96c4c aaa043a2 Author: topcat001 <anindya49@hotmail.com> Date: Thu Nov 10 18:53:01 2022 -0800 Merge branch 'master' into sixel commit 34c96c4c4a33f86b49c8a53dc48b2b817db24e95 Merge: 2a1e16a2 50f4e0fa Author: topcat001 <anindya49@hotmail.com> Date: Sat Nov 5 18:05:36 2022 -0700 Merge branch 'master' into sixel commit 2a1e16a24dc75741c66f5d72fa5bf26b73507993 Merge: a82f14c7 d001a94d Author: topcat001 <anindya49@hotmail.com> Date: Thu Oct 27 16:01:35 2022 -0700 Merge branch 'master' into sixel commit a82f14c7b23a239a2114c756ef73bba8609ebe33 Merge: 742c0634 f7b30ed3 Author: topcat001 <anindya49@hotmail.com> Date: Sun Aug 28 13:43:07 2022 -0700 Merge branch 'master' into sixel commit 742c0634734e6b2840762e58b0bf27626b5ac24b Merge: 906c92a5 87b248f3 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Fri Apr 1 10:14:15 2022 +0100 Merge branch 'master' into sixel commit 906c92a5f458b8843e7abd1d6f419dc091f8063c Merge: 6680a024 138ffc7c Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Wed Dec 8 10:37:33 2021 +0000 Merge branch 'master' into sixel commit 6680a024be5e173a27c10e9a0be6c9072576086d Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Oct 7 13:59:08 2021 +0100 Fix build. commit ebd2c585937f18045d334226d4a0cc788fe14353 Merge: 90dc0519 fed7b29c Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Oct 7 13:19:48 2021 +0100 Merge branch 'master' into sixel commit 90dc05191cbba8de6d9d77ee7f9726325abe844e Merge: a282439f 4694afbe Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Feb 20 20:37:32 2020 +0000 Merge branch 'master' into sixel commit a282439fcb2f597927a5ba33d2c378c90eec8b42 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Jan 30 09:12:53 2020 +0000 Add missing declarations. commit 3a741aacd108538f99239c68bfa2cd416bf0eb46 Merge: 40ad0107 339832b9 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Jan 30 09:11:01 2020 +0000 Merge branch 'sixel-passthrough' into sixel commit 339832b92c298538f398754f6d3fc21d15d13326 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Jan 30 09:04:51 2020 +0000 Bad merge. commit 92ed9fc0b20440f2bc553757e6bfe3126fe84be4 Merge: 5bb07548 32be954b Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Jan 30 09:03:38 2020 +0000 Merge branch 'master' into sixel-passthrough commit 40ad01073d73a531b4e85b0138f78bf0b472b354 Merge: dd3c72f1 61b075a2 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Sun Jan 12 20:03:41 2020 +0000 Merge branch 'master' into sixel commit 5bb075487f5897d7402adb880e678043c0f7f3e0 Merge: 7c033a74 54efe337 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Wed Dec 18 20:24:42 2019 +0000 Merge branch 'master' into sixel-passthrough commit dd3c72f132c911b0ba61b56a56f46510704d3392 Merge: 1a0e5fe9 54efe337 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Wed Dec 18 20:24:26 2019 +0000 Merge branch 'master' into sixel commit 1a0e5fe933e89932f2f658936c52eb50644fbef4 Merge: cf071ffe 15d7e564 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Tue Dec 10 16:34:11 2019 +0000 Merge branch 'master' into sixel commit cf071ffecd5a0d33008fd0a8b66a22f6855c7a8d Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Mon Dec 9 15:41:56 2019 +0000 Remove images when reflow happens. commit 2006b7a5631787a7086c6bae364e62d0a0b5948a Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Dec 5 09:27:15 2019 +0000 More invalidation of images. commit b642eac4503cc89cde01103f7bacca57cc9c1a2b Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Dec 5 09:11:24 2019 +0000 Redraw and scroll images and part of invalidating them. commit 7566e37a461bf245bd2e54e1d522e919071e9c44 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Dec 5 08:51:24 2019 +0000 Call sixel_scale with the right number of arguments. commit 62c0280b23cf67fc43f691392a8eca5cd7ff0727 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Dec 5 08:48:58 2019 +0000 Correctly remove when not visible. commit 86c5098a887f2cd09b828e051ccf0fab21bf4f6a Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Dec 5 08:32:25 2019 +0000 Add helpers to scroll image up and a flag to copy the colours. commit 49f2f0a8f1e72389f4128aa38119ed124cdc31c5 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Dec 5 00:02:55 2019 +0000 Store images, currently at most 10. commit 3aebcc67099ccbc5964c744fc1435931c1a78583 Merge: 146ee3f6 92ecd611 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Wed Dec 4 19:27:16 2019 +0000 Merge branch 'master' into sixel commit 7c033a74e25957d333217cb71a7658b860583501 Merge: 0a15bbf3 92ecd611 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Wed Dec 4 12:41:09 2019 +0000 Merge branch 'master' into sixel-passthrough commit 146ee3f6f8ee2629c6a88b6900a71f3e6fd14e4d Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Sat Nov 30 09:47:53 2019 +0000 Don't write image as text yet. commit 0a15bbf3f1972dc84c5c84d5128024c1bc4c0074 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Sat Nov 30 09:15:35 2019 +0000 Do not defer redraw if it is just the status line (will need to do more here I think). commit a5b1e209417b7d3f5b0099642dd317c312f79377 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Nov 28 14:20:22 2019 +0000 Add a flag to disable blocking while sending a SIXEL image (turned off when the buffer hits 0 size). commit 968382aa6a4b9c71fbc221aa4f0e899f6a83a260 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Nov 28 12:35:18 2019 +0000 Pass through SIXEL DCS sequences (treat similarly to the passthrough escape sequence) if it appears the terminal outside supports them. commit b1904c9b8db514133d3372aac13b2ff0b2093cc3 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Sat Nov 30 09:17:18 2019 +0000 Store SIXELs as a box for the moment. commit 5d8dbcdf3d76d0e69b8f2d21eff48f819dcec199 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Sat Nov 30 09:15:35 2019 +0000 Do not defer redraw if it is just the status line (will need to do more here I think). commit 0c999a402ece7b40e6ae84547893421b52d508ff Merge: 28961dd5 866b053f Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Fri Nov 29 18:54:09 2019 +0000 Merge branch 'master' into sixel commit 28961dd5a38dd5a7b703ed0e6625fa9a65556d35 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Nov 28 14:24:57 2019 +0000 Add an image. commit d2e3f3c1cca5410570c5392340d14e96ae7a354c Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Nov 28 14:20:22 2019 +0000 Add a flag to disable blocking while sending a SIXEL image (turned off when the buffer hits 0 size). commit e01df67ca106e57f5c689e75f313f8cda6f8b805 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Nov 28 13:21:40 2019 +0000 Crop and scale images as needed when drawing them. commit e24acc0b5c3ac19dcacebdea243dcc7784215ffa Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Nov 28 12:38:02 2019 +0000 Simple SIXEL parse and modify API. commit b34111b3da1e4b1769a976cd40486144f7b4f5a2 Author: Nicholas Marriott <nicholas.marriott@gmail.com> Date: Thu Nov 28 12:35:18 2019 +0000 Pass through SIXEL DCS sequences (treat similarly to the passthrough escape sequence) if it appears the terminal outside supports them.
2023-08-22 07:43:35 +00:00
/* $OpenBSD$ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
static struct images all_images = TAILQ_HEAD_INITIALIZER(all_images);
static u_int all_images_count;
static void
image_free(struct image *im)
{
struct screen *s = im->s;
TAILQ_REMOVE(&all_images, im, all_entry);
all_images_count--;
TAILQ_REMOVE(&s->images, im, entry);
sixel_free(im->data);
free(im->fallback);
free(im);
}
int
image_free_all(struct screen *s)
{
struct image *im, *im1;
int redraw = !TAILQ_EMPTY(&s->images);
TAILQ_FOREACH_SAFE(im, &s->images, entry, im1)
image_free(im);
return (redraw);
}
/* Create text placeholder for an image. */
static void
image_fallback(char **ret, u_int sx, u_int sy)
{
char *buf, *label;
u_int py, size, lsize;
/* Allocate first line. */
lsize = xasprintf(&label, "SIXEL IMAGE (%ux%u)\r\n", sx, sy) + 1;
if (sx < lsize - 3)
size = lsize - 1;
else
size = sx + 2;
/* Remaining lines. Every placeholder line has \r\n at the end. */
size += (sx + 2) * (sy - 1) + 1;
*ret = buf = xmalloc(size);
/* Render first line. */
if (sx < lsize - 3) {
memcpy(buf, label, lsize);
buf += lsize - 1;
} else {
memcpy(buf, label, lsize - 3);
buf += lsize - 3;
memset(buf, '+', sx - lsize + 3);
buf += sx - lsize + 3;
snprintf(buf, 3, "\r\n");
buf += 2;
}
/* Remaining lines. */
for (py = 1; py < sy; py++) {
memset(buf, '+', sx);
buf += sx;
snprintf(buf, 3, "\r\n");
buf += 2;
}
free(label);
}
struct image*
image_store(struct screen *s, struct sixel_image *si)
{
struct image *im;
im = xcalloc(1, sizeof *im);
im->s = s;
im->data = si;
im->px = s->cx;
im->py = s->cy;
sixel_size_in_cells(si, &im->sx, &im->sy);
image_fallback(&im->fallback, im->sx, im->sy);
TAILQ_INSERT_TAIL(&s->images, im, entry);
TAILQ_INSERT_TAIL(&all_images, im, all_entry);
if (++all_images_count == 10/*XXX*/)
image_free(TAILQ_FIRST(&all_images));
return (im);
}
int
image_check_line(struct screen *s, u_int py, u_int ny)
{
struct image *im, *im1;
int redraw = 0;
TAILQ_FOREACH_SAFE(im, &s->images, entry, im1) {
if (py + ny > im->py && py < im->py + im->sy) {
image_free(im);
redraw = 1;
}
}
return (redraw);
}
int
image_check_area(struct screen *s, u_int px, u_int py, u_int nx, u_int ny)
{
struct image *im, *im1;
int redraw = 0;
TAILQ_FOREACH_SAFE(im, &s->images, entry, im1) {
if (py + ny <= im->py || py >= im->py + im->sy)
continue;
if (px + nx <= im->px || px >= im->px + im->sx)
continue;
image_free(im);
redraw = 1;
}
return (redraw);
}
int
image_scroll_up(struct screen *s, u_int lines)
{
struct image *im, *im1;
int redraw = 0;
u_int sx, sy;
struct sixel_image *new;
TAILQ_FOREACH_SAFE(im, &s->images, entry, im1) {
if (im->py >= lines) {
im->py -= lines;
redraw = 1;
continue;
}
if (im->py + im->sy <= lines) {
image_free(im);
redraw = 1;
continue;
}
sx = im->sx;
sy = (im->py + im->sy) - lines;
new = sixel_scale(im->data, 0, 0, 0, im->sy - sy, sx, sy, 1);
sixel_free(im->data);
im->data = new;
im->py = 0;
sixel_size_in_cells(im->data, &im->sx, &im->sy);
free(im->fallback);
image_fallback(&im->fallback, im->sx, im->sy);
redraw = 1;
}
return (redraw);
}