2013-02-08 21:52:41 +01:00
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/* Copyright 2011, 2012 Bert Muennich
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2011-01-17 14:57:59 +01:00
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*
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2013-02-08 21:52:41 +01:00
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* This file is part of sxiv.
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2011-08-18 01:18:26 +02:00
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*
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2013-02-08 21:52:41 +01:00
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* sxiv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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2011-08-18 01:18:26 +02:00
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*
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2013-02-08 21:52:41 +01:00
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* sxiv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with sxiv. If not, see <http://www.gnu.org/licenses/>.
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2011-01-17 14:57:59 +01:00
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*/
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2015-10-28 23:03:37 +01:00
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#include <errno.h>
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2012-02-11 02:42:52 +01:00
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#include <stdlib.h>
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2011-09-06 11:09:57 +02:00
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#include <string.h>
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2016-10-20 10:21:55 +02:00
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#include <sys/stat.h>
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2012-02-11 02:42:52 +01:00
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#include <sys/types.h>
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2011-08-17 18:17:40 +02:00
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#include <unistd.h>
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2011-09-08 15:55:03 +02:00
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2011-09-12 19:28:02 +02:00
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#include "image.h"
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#include "options.h"
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#include "util.h"
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2015-10-28 21:37:45 +01:00
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#define _IMAGE_CONFIG
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2011-09-12 19:28:02 +02:00
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#include "config.h"
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2014-06-09 22:59:49 +02:00
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#if HAVE_LIBEXIF
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#include <libexif/exif-data.h>
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#endif
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#if HAVE_GIFLIB
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#include <gif_lib.h>
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2014-07-25 22:52:31 +02:00
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enum { DEF_GIF_DELAY = 75 };
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2014-06-09 22:59:49 +02:00
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#endif
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2011-01-21 10:29:31 +01:00
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float zoom_min;
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float zoom_max;
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2013-11-14 17:06:20 +01:00
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static int zoomdiff(float z1, float z2)
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2013-02-08 22:05:31 +01:00
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{
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2012-08-16 21:21:08 +02:00
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return (int) (z1 * 1000.0 - z2 * 1000.0);
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2011-09-29 13:12:40 +02:00
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}
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2013-02-08 22:05:31 +01:00
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void img_init(img_t *img, win_t *win)
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{
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2011-09-08 15:55:03 +02:00
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zoom_min = zoom_levels[0] / 100.0;
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zoom_max = zoom_levels[ARRLEN(zoom_levels) - 1] / 100.0;
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2011-09-17 17:23:51 +02:00
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imlib_context_set_display(win->env.dpy);
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imlib_context_set_visual(win->env.vis);
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imlib_context_set_colormap(win->env.cmap);
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img->im = NULL;
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img->win = win;
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2014-02-04 23:03:53 +01:00
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img->scalemode = options->scalemode;
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2011-09-17 17:23:51 +02:00
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img->zoom = options->zoom;
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img->zoom = MAX(img->zoom, zoom_min);
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img->zoom = MIN(img->zoom, zoom_max);
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img->checkpan = false;
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img->dirty = false;
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2014-04-06 22:47:42 +02:00
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img->aa = ANTI_ALIAS;
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img->alpha = ALPHA_LAYER;
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2011-09-17 17:23:51 +02:00
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img->multi.cap = img->multi.cnt = 0;
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2014-07-25 22:52:31 +02:00
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img->multi.animate = options->animate;
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img->multi.length = 0;
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2013-11-13 20:54:09 +01:00
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img->cmod = imlib_create_color_modifier();
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2015-01-05 20:53:04 +01:00
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imlib_context_set_color_modifier(img->cmod);
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2013-11-14 17:12:55 +01:00
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img->gamma = MIN(MAX(options->gamma, -GAMMA_RANGE), GAMMA_RANGE);
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2015-01-05 20:53:04 +01:00
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2016-11-28 05:36:23 +01:00
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img->ss.on = options->slideshow > 0.0;
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img->ss.delay = options->slideshow > 0.0 ? options->slideshow : SLIDESHOW_DELAY;
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2011-09-08 15:55:03 +02:00
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}
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2014-06-09 22:59:49 +02:00
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#if HAVE_LIBEXIF
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2013-02-08 22:05:31 +01:00
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void exif_auto_orientate(const fileinfo_t *file)
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{
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2014-06-09 22:59:49 +02:00
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ExifData *ed;
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ExifEntry *entry;
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int byte_order, orientation = 0;
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if ((ed = exif_data_new_from_file(file->path)) == NULL)
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return;
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byte_order = exif_data_get_byte_order(ed);
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entry = exif_content_get_entry(ed->ifd[EXIF_IFD_0], EXIF_TAG_ORIENTATION);
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if (entry != NULL)
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orientation = exif_get_short(entry->data, byte_order);
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exif_data_unref(ed);
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switch (orientation) {
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2012-02-15 19:13:44 +01:00
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case 5:
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imlib_image_orientate(1);
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case 2:
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imlib_image_flip_vertical();
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break;
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case 3:
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imlib_image_orientate(2);
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break;
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case 7:
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imlib_image_orientate(1);
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case 4:
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imlib_image_flip_horizontal();
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break;
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case 6:
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imlib_image_orientate(1);
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break;
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case 8:
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imlib_image_orientate(3);
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break;
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}
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}
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2014-06-09 22:59:49 +02:00
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#endif
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2012-02-15 19:13:44 +01:00
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2012-12-27 16:43:19 +01:00
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#if HAVE_GIFLIB
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2013-02-08 22:05:31 +01:00
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bool img_load_gif(img_t *img, const fileinfo_t *file)
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{
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2011-08-17 00:56:18 +02:00
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GifFileType *gif;
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GifRowType *rows = NULL;
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GifRecordType rec;
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ColorMapObject *cmap;
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2011-08-17 18:01:21 +02:00
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DATA32 bgpixel, *data, *ptr;
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DATA32 *prev_frame = NULL;
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2013-12-13 13:04:45 +01:00
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Imlib_Image im;
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2011-08-17 18:01:21 +02:00
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int i, j, bg, r, g, b;
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int x, y, w, h, sw, sh;
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2011-10-17 18:39:33 +02:00
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int px, py, pw, ph;
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2011-08-17 00:56:18 +02:00
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int intoffset[] = { 0, 4, 2, 1 };
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int intjump[] = { 8, 8, 4, 2 };
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2011-09-11 21:01:24 +02:00
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int transp = -1;
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2011-10-11 20:28:58 +02:00
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unsigned int disposal = 0, prev_disposal = 0;
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2011-08-18 16:05:32 +02:00
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unsigned int delay = 0;
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2011-09-11 21:01:24 +02:00
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bool err = false;
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2011-08-17 00:56:18 +02:00
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if (img->multi.cap == 0) {
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img->multi.cap = 8;
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2011-08-18 16:05:32 +02:00
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img->multi.frames = (img_frame_t*)
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2015-10-28 22:29:01 +01:00
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emalloc(sizeof(img_frame_t) * img->multi.cap);
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2011-08-17 00:56:18 +02:00
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}
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2014-01-04 18:38:40 +01:00
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img->multi.cnt = img->multi.sel = 0;
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2014-07-25 22:52:31 +02:00
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img->multi.length = 0;
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2011-08-17 00:56:18 +02:00
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2013-04-21 13:55:08 +02:00
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#if defined(GIFLIB_MAJOR) && GIFLIB_MAJOR >= 5
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gif = DGifOpenFileName(file->path, NULL);
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#else
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2011-08-17 00:56:18 +02:00
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gif = DGifOpenFileName(file->path);
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2013-04-21 13:55:08 +02:00
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#endif
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2011-09-29 12:43:36 +02:00
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if (gif == NULL) {
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2015-10-28 23:03:37 +01:00
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error(0, 0, "%s: Error opening gif image", file->name);
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2011-09-11 21:01:24 +02:00
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return false;
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2011-08-17 00:56:18 +02:00
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}
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2011-08-17 18:01:21 +02:00
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bg = gif->SBackGroundColor;
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sw = gif->SWidth;
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sh = gif->SHeight;
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2011-10-17 18:39:33 +02:00
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px = py = pw = ph = 0;
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2011-08-17 00:56:18 +02:00
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do {
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if (DGifGetRecordType(gif, &rec) == GIF_ERROR) {
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2011-09-11 21:01:24 +02:00
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err = true;
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2011-08-17 00:56:18 +02:00
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break;
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}
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if (rec == EXTENSION_RECORD_TYPE) {
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int ext_code;
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GifByteType *ext = NULL;
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DGifGetExtension(gif, &ext_code, &ext);
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while (ext) {
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2013-12-31 16:38:42 +01:00
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if (ext_code == GRAPHICS_EXT_FUNC_CODE) {
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2011-08-17 18:01:21 +02:00
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if (ext[1] & 1)
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transp = (int) ext[4];
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else
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transp = -1;
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2011-08-18 16:05:32 +02:00
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delay = 10 * ((unsigned int) ext[3] << 8 | (unsigned int) ext[2]);
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2011-10-11 20:28:58 +02:00
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disposal = (unsigned int) ext[1] >> 2 & 0x7;
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2011-08-17 18:01:21 +02:00
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}
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2011-08-17 00:56:18 +02:00
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ext = NULL;
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DGifGetExtensionNext(gif, &ext);
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}
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} else if (rec == IMAGE_DESC_RECORD_TYPE) {
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if (DGifGetImageDesc(gif) == GIF_ERROR) {
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2011-09-11 21:01:24 +02:00
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err = true;
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2011-08-17 00:56:18 +02:00
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break;
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}
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2011-08-17 18:01:21 +02:00
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x = gif->Image.Left;
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y = gif->Image.Top;
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2011-08-17 00:56:18 +02:00
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w = gif->Image.Width;
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h = gif->Image.Height;
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2011-08-17 18:01:21 +02:00
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2015-10-28 22:29:01 +01:00
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rows = (GifRowType*) emalloc(h * sizeof(GifRowType));
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2011-08-17 00:56:18 +02:00
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for (i = 0; i < h; i++)
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2015-10-28 22:29:01 +01:00
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rows[i] = (GifRowType) emalloc(w * sizeof(GifPixelType));
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2011-08-17 00:56:18 +02:00
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if (gif->Image.Interlace) {
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for (i = 0; i < 4; i++) {
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for (j = intoffset[i]; j < h; j += intjump[i])
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DGifGetLine(gif, rows[j], w);
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}
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} else {
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for (i = 0; i < h; i++)
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DGifGetLine(gif, rows[i], w);
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}
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2015-10-28 22:29:01 +01:00
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ptr = data = (DATA32*) emalloc(sizeof(DATA32) * sw * sh);
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2011-08-17 00:56:18 +02:00
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cmap = gif->Image.ColorMap ? gif->Image.ColorMap : gif->SColorMap;
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2011-08-17 18:01:21 +02:00
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r = cmap->Colors[bg].Red;
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g = cmap->Colors[bg].Green;
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b = cmap->Colors[bg].Blue;
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bgpixel = 0x00ffffff & (r << 16 | g << 8 | b);
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for (i = 0; i < sh; i++) {
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for (j = 0; j < sw; j++) {
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2011-09-28 12:53:44 +02:00
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if (i < y || i >= y + h || j < x || j >= x + w ||
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rows[i-y][j-x] == transp)
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{
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2011-10-17 18:39:33 +02:00
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if (prev_frame != NULL && (prev_disposal != 2 ||
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i < py || i >= py + ph || j < px || j >= px + pw))
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{
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2011-08-17 18:01:21 +02:00
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*ptr = prev_frame[i * sw + j];
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2011-10-17 18:39:33 +02:00
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} else {
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2011-08-17 18:01:21 +02:00
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*ptr = bgpixel;
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2011-10-17 18:39:33 +02:00
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}
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2011-08-17 00:56:18 +02:00
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} else {
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2011-08-17 18:01:21 +02:00
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r = cmap->Colors[rows[i-y][j-x]].Red;
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g = cmap->Colors[rows[i-y][j-x]].Green;
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b = cmap->Colors[rows[i-y][j-x]].Blue;
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2015-12-26 10:14:35 +01:00
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*ptr = 0xffu << 24 | r << 16 | g << 8 | b;
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2011-08-17 00:56:18 +02:00
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}
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2011-08-17 18:01:21 +02:00
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ptr++;
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2011-08-17 00:56:18 +02:00
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}
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}
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2011-08-17 18:01:21 +02:00
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im = imlib_create_image_using_copied_data(sw, sh, data);
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2011-08-17 00:56:18 +02:00
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for (i = 0; i < h; i++)
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free(rows[i]);
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free(rows);
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free(data);
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2011-09-29 12:43:36 +02:00
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if (im == NULL) {
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2011-09-11 21:01:24 +02:00
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err = true;
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2011-08-17 00:56:18 +02:00
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break;
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}
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imlib_context_set_image(im);
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imlib_image_set_format("gif");
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if (transp >= 0)
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imlib_image_set_has_alpha(1);
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2011-10-11 20:28:58 +02:00
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if (disposal != 3)
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prev_frame = imlib_image_get_data_for_reading_only();
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prev_disposal = disposal;
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2011-10-17 18:39:33 +02:00
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px = x, py = y, pw = w, ph = h;
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2011-10-11 20:28:58 +02:00
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2011-08-17 00:56:18 +02:00
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if (img->multi.cnt == img->multi.cap) {
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img->multi.cap *= 2;
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2011-08-18 16:05:32 +02:00
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img->multi.frames = (img_frame_t*)
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2015-10-28 22:29:01 +01:00
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erealloc(img->multi.frames,
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img->multi.cap * sizeof(img_frame_t));
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2011-08-17 00:56:18 +02:00
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}
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2011-08-18 16:05:32 +02:00
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img->multi.frames[img->multi.cnt].im = im;
|
2014-07-25 22:52:31 +02:00
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img->multi.frames[img->multi.cnt].delay = delay > 0 ? delay : DEF_GIF_DELAY;
|
2014-01-04 18:38:40 +01:00
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img->multi.length += img->multi.frames[img->multi.cnt].delay;
|
2011-08-18 16:05:32 +02:00
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img->multi.cnt++;
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2011-08-17 00:56:18 +02:00
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}
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} while (rec != TERMINATE_RECORD_TYPE);
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2014-05-27 11:46:06 +02:00
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#if defined(GIFLIB_MAJOR) && GIFLIB_MAJOR >= 5 && GIFLIB_MINOR >= 1
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DGifCloseFile(gif, NULL);
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#else
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2011-08-17 00:56:18 +02:00
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DGifCloseFile(gif);
|
2014-05-27 11:46:06 +02:00
|
|
|
#endif
|
2011-08-17 00:56:18 +02:00
|
|
|
|
2015-01-04 15:38:49 +01:00
|
|
|
if (err && (file->flags & FF_WARN))
|
2015-10-28 23:03:37 +01:00
|
|
|
error(0, 0, "%s: Corrupted gif file", file->name);
|
2011-09-06 11:55:31 +02:00
|
|
|
|
|
|
|
if (img->multi.cnt > 1) {
|
2011-08-17 00:56:18 +02:00
|
|
|
imlib_context_set_image(img->im);
|
|
|
|
imlib_free_image();
|
2011-08-18 16:05:32 +02:00
|
|
|
img->im = img->multi.frames[0].im;
|
2011-09-06 11:55:31 +02:00
|
|
|
} else if (img->multi.cnt == 1) {
|
|
|
|
imlib_context_set_image(img->multi.frames[0].im);
|
|
|
|
imlib_free_image();
|
2011-08-17 00:56:18 +02:00
|
|
|
img->multi.cnt = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
imlib_context_set_image(img->im);
|
|
|
|
|
|
|
|
return !err;
|
|
|
|
}
|
2012-12-27 16:43:19 +01:00
|
|
|
#endif /* HAVE_GIFLIB */
|
2011-08-17 00:56:18 +02:00
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_load(img_t *img, const fileinfo_t *file)
|
|
|
|
{
|
2011-08-17 18:01:21 +02:00
|
|
|
const char *fmt;
|
2016-10-20 10:21:55 +02:00
|
|
|
struct stat st;
|
2011-08-17 00:56:18 +02:00
|
|
|
|
2016-10-20 10:21:55 +02:00
|
|
|
if (access(file->path, R_OK) == -1 ||
|
|
|
|
stat(file->path, &st) == -1 || !S_ISREG(st.st_mode) ||
|
2011-09-29 12:43:36 +02:00
|
|
|
(img->im = imlib_load_image(file->path)) == NULL)
|
|
|
|
{
|
2015-01-04 15:38:49 +01:00
|
|
|
if (file->flags & FF_WARN)
|
2015-10-28 23:03:37 +01:00
|
|
|
error(0, 0, "%s: Error opening image", file->name);
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-02-09 16:32:40 +01:00
|
|
|
}
|
2011-01-18 20:11:28 +01:00
|
|
|
|
2011-04-11 16:58:38 +02:00
|
|
|
imlib_context_set_image(img->im);
|
|
|
|
imlib_image_set_changes_on_disk();
|
|
|
|
|
2014-06-09 22:59:49 +02:00
|
|
|
#if HAVE_LIBEXIF
|
|
|
|
exif_auto_orientate(file);
|
2012-12-27 16:43:19 +01:00
|
|
|
#endif
|
2011-08-17 00:56:18 +02:00
|
|
|
|
2014-06-09 22:59:49 +02:00
|
|
|
if ((fmt = imlib_image_format()) != NULL) {
|
|
|
|
#if HAVE_GIFLIB
|
|
|
|
if (STREQ(fmt, "gif"))
|
|
|
|
img_load_gif(img, file);
|
|
|
|
#endif
|
|
|
|
}
|
2011-09-17 17:23:51 +02:00
|
|
|
img->w = imlib_image_get_width();
|
|
|
|
img->h = imlib_image_get_height();
|
2014-02-04 21:02:02 +01:00
|
|
|
img->checkpan = true;
|
2011-09-11 21:01:24 +02:00
|
|
|
img->dirty = true;
|
2011-01-22 23:27:29 +01:00
|
|
|
|
2011-09-11 21:01:24 +02:00
|
|
|
return true;
|
2011-01-18 17:20:41 +01:00
|
|
|
}
|
2011-01-18 20:11:28 +01:00
|
|
|
|
2015-10-28 23:03:37 +01:00
|
|
|
CLEANUP void img_close(img_t *img, bool decache)
|
2013-02-08 22:05:31 +01:00
|
|
|
{
|
2011-08-17 18:01:21 +02:00
|
|
|
int i;
|
|
|
|
|
2011-09-29 12:43:36 +02:00
|
|
|
if (img->multi.cnt > 0) {
|
2011-08-17 18:01:21 +02:00
|
|
|
for (i = 0; i < img->multi.cnt; i++) {
|
2011-08-18 16:05:32 +02:00
|
|
|
imlib_context_set_image(img->multi.frames[i].im);
|
2011-08-17 18:01:21 +02:00
|
|
|
imlib_free_image();
|
|
|
|
}
|
|
|
|
img->multi.cnt = 0;
|
|
|
|
img->im = NULL;
|
2011-09-29 12:43:36 +02:00
|
|
|
} else if (img->im != NULL) {
|
2011-02-25 12:08:12 +01:00
|
|
|
imlib_context_set_image(img->im);
|
2011-03-01 18:49:02 +01:00
|
|
|
if (decache)
|
|
|
|
imlib_free_image_and_decache();
|
|
|
|
else
|
|
|
|
imlib_free_image();
|
2011-02-25 12:08:12 +01:00
|
|
|
img->im = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
void img_check_pan(img_t *img, bool moved)
|
|
|
|
{
|
2011-09-17 17:23:51 +02:00
|
|
|
win_t *win;
|
2011-09-11 01:13:45 +02:00
|
|
|
int ox, oy;
|
2014-02-04 21:02:02 +01:00
|
|
|
float w, h;
|
2011-09-11 01:13:45 +02:00
|
|
|
|
2011-09-17 17:23:51 +02:00
|
|
|
win = img->win;
|
2014-02-04 21:02:02 +01:00
|
|
|
w = img->w * img->zoom;
|
|
|
|
h = img->h * img->zoom;
|
2011-09-11 01:13:45 +02:00
|
|
|
ox = img->x;
|
|
|
|
oy = img->y;
|
|
|
|
|
2014-02-04 21:02:02 +01:00
|
|
|
if (w < win->w)
|
|
|
|
img->x = (win->w - w) / 2;
|
|
|
|
else if (img->x > 0)
|
|
|
|
img->x = 0;
|
|
|
|
else if (img->x + w < win->w)
|
|
|
|
img->x = win->w - w;
|
|
|
|
if (h < win->h)
|
|
|
|
img->y = (win->h - h) / 2;
|
|
|
|
else if (img->y > 0)
|
|
|
|
img->y = 0;
|
|
|
|
else if (img->y + h < win->h)
|
|
|
|
img->y = win->h - h;
|
2011-09-11 01:13:45 +02:00
|
|
|
|
|
|
|
if (!moved && (ox != img->x || oy != img->y))
|
2011-09-11 21:01:24 +02:00
|
|
|
img->dirty = true;
|
2011-01-20 23:22:00 +01:00
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_fit(img_t *img)
|
|
|
|
{
|
2011-09-11 01:13:45 +02:00
|
|
|
float z, zmax, zw, zh;
|
2011-02-03 16:55:24 +01:00
|
|
|
|
2011-09-17 17:23:51 +02:00
|
|
|
if (img->scalemode == SCALE_ZOOM)
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-02-03 16:55:24 +01:00
|
|
|
|
2011-09-11 01:13:45 +02:00
|
|
|
zmax = img->scalemode == SCALE_DOWN ? 1.0 : zoom_max;
|
2011-09-17 17:23:51 +02:00
|
|
|
zw = (float) img->win->w / (float) img->w;
|
|
|
|
zh = (float) img->win->h / (float) img->h;
|
2011-02-03 16:55:24 +01:00
|
|
|
|
2012-07-19 12:28:44 +02:00
|
|
|
switch (img->scalemode) {
|
|
|
|
case SCALE_WIDTH:
|
|
|
|
z = zw;
|
|
|
|
break;
|
|
|
|
case SCALE_HEIGHT:
|
|
|
|
z = zh;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
z = MIN(zw, zh);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2011-09-11 01:13:45 +02:00
|
|
|
z = MAX(z, zoom_min);
|
|
|
|
z = MIN(z, zmax);
|
2011-02-03 16:55:24 +01:00
|
|
|
|
2012-08-16 13:09:44 +02:00
|
|
|
if (zoomdiff(z, img->zoom) != 0) {
|
2011-09-11 01:13:45 +02:00
|
|
|
img->zoom = z;
|
2011-09-11 21:01:24 +02:00
|
|
|
img->dirty = true;
|
|
|
|
return true;
|
2011-09-11 01:13:45 +02:00
|
|
|
} else {
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-09-11 01:13:45 +02:00
|
|
|
}
|
2011-02-03 16:55:24 +01:00
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
void img_render(img_t *img)
|
|
|
|
{
|
2011-09-17 17:23:51 +02:00
|
|
|
win_t *win;
|
2011-01-20 15:39:08 +01:00
|
|
|
int sx, sy, sw, sh;
|
|
|
|
int dx, dy, dw, dh;
|
2014-02-06 22:04:19 +01:00
|
|
|
Imlib_Image bg;
|
|
|
|
unsigned long c;
|
2011-01-20 15:39:08 +01:00
|
|
|
|
2011-09-17 17:23:51 +02:00
|
|
|
win = img->win;
|
|
|
|
img_fit(img);
|
2011-01-21 12:13:52 +01:00
|
|
|
|
2011-01-22 23:27:29 +01:00
|
|
|
if (img->checkpan) {
|
2011-09-17 17:23:51 +02:00
|
|
|
img_check_pan(img, false);
|
2011-09-11 21:01:24 +02:00
|
|
|
img->checkpan = false;
|
2011-01-21 12:13:52 +01:00
|
|
|
}
|
2011-01-20 23:22:00 +01:00
|
|
|
|
2011-09-11 01:13:45 +02:00
|
|
|
if (!img->dirty)
|
|
|
|
return;
|
|
|
|
|
2014-02-06 22:04:19 +01:00
|
|
|
/* calculate source and destination offsets:
|
|
|
|
* - part of image drawn on full window, or
|
|
|
|
* - full image drawn on part of window
|
|
|
|
*/
|
|
|
|
if (img->x <= 0) {
|
2015-02-06 08:52:44 +01:00
|
|
|
sx = -img->x / img->zoom + 0.5;
|
2011-01-20 21:44:34 +01:00
|
|
|
sw = win->w / img->zoom;
|
|
|
|
dx = 0;
|
|
|
|
dw = win->w;
|
2011-01-18 20:11:28 +01:00
|
|
|
} else {
|
|
|
|
sx = 0;
|
2011-01-20 21:44:34 +01:00
|
|
|
sw = img->w;
|
2011-01-18 20:11:28 +01:00
|
|
|
dx = img->x;
|
2011-01-20 21:44:34 +01:00
|
|
|
dw = img->w * img->zoom;
|
2011-01-18 20:11:28 +01:00
|
|
|
}
|
2014-02-06 22:04:19 +01:00
|
|
|
if (img->y <= 0) {
|
2015-02-06 08:52:44 +01:00
|
|
|
sy = -img->y / img->zoom + 0.5;
|
2011-01-20 21:44:34 +01:00
|
|
|
sh = win->h / img->zoom;
|
|
|
|
dy = 0;
|
|
|
|
dh = win->h;
|
2011-01-18 20:11:28 +01:00
|
|
|
} else {
|
|
|
|
sy = 0;
|
2011-01-20 21:44:34 +01:00
|
|
|
sh = img->h;
|
2011-01-18 20:11:28 +01:00
|
|
|
dy = img->y;
|
2011-01-20 21:44:34 +01:00
|
|
|
dh = img->h * img->zoom;
|
2011-01-18 20:11:28 +01:00
|
|
|
}
|
|
|
|
|
2011-01-20 21:44:34 +01:00
|
|
|
win_clear(win);
|
2011-01-18 20:11:28 +01:00
|
|
|
|
2011-04-11 16:58:38 +02:00
|
|
|
imlib_context_set_image(img->im);
|
2011-12-17 16:36:21 +01:00
|
|
|
imlib_context_set_anti_alias(img->aa);
|
2014-07-28 20:36:32 +02:00
|
|
|
imlib_context_set_drawable(win->buf.pm);
|
2011-01-20 21:44:34 +01:00
|
|
|
|
2014-02-06 22:04:19 +01:00
|
|
|
if (imlib_image_has_alpha()) {
|
2014-02-07 22:57:58 +01:00
|
|
|
if ((bg = imlib_create_image(dw, dh)) == NULL)
|
2015-10-28 23:03:37 +01:00
|
|
|
error(EXIT_FAILURE, ENOMEM, NULL);
|
2014-02-06 22:04:19 +01:00
|
|
|
imlib_context_set_image(bg);
|
|
|
|
imlib_image_set_has_alpha(0);
|
|
|
|
|
2014-04-06 22:47:42 +02:00
|
|
|
if (img->alpha) {
|
|
|
|
int i, c, r;
|
|
|
|
DATA32 col[2] = { 0xFF666666, 0xFF999999 };
|
|
|
|
DATA32 * data = imlib_image_get_data();
|
|
|
|
|
|
|
|
for (r = 0; r < dh; r++) {
|
|
|
|
i = r * dw;
|
|
|
|
if (r == 0 || r == 8) {
|
|
|
|
for (c = 0; c < dw; c++)
|
|
|
|
data[i++] = col[!(c & 8) ^ !r];
|
|
|
|
} else {
|
|
|
|
memcpy(&data[i], &data[(r & 8) * dw], dw * sizeof(data[0]));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
imlib_image_put_back_data(data);
|
|
|
|
} else {
|
2016-08-06 15:27:58 +02:00
|
|
|
c = win->fullscreen ? win->fscol.pixel : win->bgcol.pixel;
|
2014-04-06 22:47:42 +02:00
|
|
|
imlib_context_set_color(c >> 16 & 0xFF, c >> 8 & 0xFF, c & 0xFF, 0xFF);
|
|
|
|
imlib_image_fill_rectangle(0, 0, dw, dh);
|
|
|
|
}
|
2014-02-06 22:04:19 +01:00
|
|
|
imlib_blend_image_onto_image(img->im, 0, sx, sy, sw, sh, 0, 0, dw, dh);
|
|
|
|
imlib_context_set_color_modifier(NULL);
|
|
|
|
imlib_render_image_on_drawable(dx, dy);
|
|
|
|
imlib_free_image();
|
2015-01-05 20:53:04 +01:00
|
|
|
imlib_context_set_color_modifier(img->cmod);
|
2014-02-06 22:04:19 +01:00
|
|
|
} else {
|
|
|
|
imlib_render_image_part_on_drawable_at_size(sx, sy, sw, sh, dx, dy, dw, dh);
|
|
|
|
}
|
2011-09-11 21:01:24 +02:00
|
|
|
img->dirty = false;
|
2011-01-18 20:11:28 +01:00
|
|
|
}
|
2011-01-20 23:22:00 +01:00
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_fit_win(img_t *img, scalemode_t sm)
|
|
|
|
{
|
2014-02-04 21:02:02 +01:00
|
|
|
float oz;
|
2011-02-03 14:32:02 +01:00
|
|
|
|
2014-02-04 21:02:02 +01:00
|
|
|
oz = img->zoom;
|
|
|
|
img->scalemode = sm;
|
|
|
|
|
|
|
|
if (img_fit(img)) {
|
|
|
|
img->x = img->win->w / 2 - (img->win->w / 2 - img->x) * img->zoom / oz;
|
|
|
|
img->y = img->win->h / 2 - (img->win->h / 2 - img->y) * img->zoom / oz;
|
|
|
|
img->checkpan = true;
|
2011-09-11 21:01:24 +02:00
|
|
|
return true;
|
2011-09-11 01:13:45 +02:00
|
|
|
} else {
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-09-11 01:13:45 +02:00
|
|
|
}
|
2011-01-28 13:34:16 +01:00
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_zoom(img_t *img, float z)
|
|
|
|
{
|
2011-01-28 13:34:16 +01:00
|
|
|
z = MAX(z, zoom_min);
|
|
|
|
z = MIN(z, zoom_max);
|
2011-02-03 16:55:24 +01:00
|
|
|
|
2011-02-03 16:14:49 +01:00
|
|
|
img->scalemode = SCALE_ZOOM;
|
2011-01-20 23:22:00 +01:00
|
|
|
|
2012-08-16 13:09:44 +02:00
|
|
|
if (zoomdiff(z, img->zoom) != 0) {
|
2011-09-17 17:23:51 +02:00
|
|
|
img->x = img->win->w / 2 - (img->win->w / 2 - img->x) * z / img->zoom;
|
|
|
|
img->y = img->win->h / 2 - (img->win->h / 2 - img->y) * z / img->zoom;
|
2011-01-20 23:22:00 +01:00
|
|
|
img->zoom = z;
|
2011-09-11 21:01:24 +02:00
|
|
|
img->checkpan = true;
|
|
|
|
img->dirty = true;
|
|
|
|
return true;
|
2011-01-20 23:22:00 +01:00
|
|
|
} else {
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-01-20 23:22:00 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_zoom_in(img_t *img)
|
|
|
|
{
|
2011-01-21 10:29:31 +01:00
|
|
|
int i;
|
2012-08-16 13:09:44 +02:00
|
|
|
float z;
|
2011-01-21 10:29:31 +01:00
|
|
|
|
2011-09-06 11:04:47 +02:00
|
|
|
for (i = 1; i < ARRLEN(zoom_levels); i++) {
|
2012-08-16 13:09:44 +02:00
|
|
|
z = zoom_levels[i] / 100.0;
|
|
|
|
if (zoomdiff(z, img->zoom) > 0)
|
|
|
|
return img_zoom(img, z);
|
2011-01-21 10:29:31 +01:00
|
|
|
}
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-01-20 23:22:00 +01:00
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_zoom_out(img_t *img)
|
|
|
|
{
|
2011-01-21 10:29:31 +01:00
|
|
|
int i;
|
2012-08-16 13:09:44 +02:00
|
|
|
float z;
|
2011-01-21 10:29:31 +01:00
|
|
|
|
2011-09-06 11:04:47 +02:00
|
|
|
for (i = ARRLEN(zoom_levels) - 2; i >= 0; i--) {
|
2012-08-16 13:09:44 +02:00
|
|
|
z = zoom_levels[i] / 100.0;
|
|
|
|
if (zoomdiff(z, img->zoom) < 0)
|
|
|
|
return img_zoom(img, z);
|
2011-01-21 10:29:31 +01:00
|
|
|
}
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-01-20 23:22:00 +01:00
|
|
|
}
|
2011-01-21 13:48:02 +01:00
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_move(img_t *img, float dx, float dy)
|
|
|
|
{
|
2011-10-16 18:31:01 +02:00
|
|
|
float ox, oy;
|
2011-01-21 13:48:02 +01:00
|
|
|
|
|
|
|
ox = img->x;
|
|
|
|
oy = img->y;
|
|
|
|
|
2011-01-29 22:37:40 +01:00
|
|
|
img->x += dx;
|
|
|
|
img->y += dy;
|
|
|
|
|
2011-09-17 17:23:51 +02:00
|
|
|
img_check_pan(img, true);
|
2011-01-29 22:37:40 +01:00
|
|
|
|
2011-09-11 01:13:45 +02:00
|
|
|
if (ox != img->x || oy != img->y) {
|
2011-09-11 21:01:24 +02:00
|
|
|
img->dirty = true;
|
|
|
|
return true;
|
2011-09-11 01:13:45 +02:00
|
|
|
} else {
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-09-11 01:13:45 +02:00
|
|
|
}
|
2011-01-29 22:37:40 +01:00
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_pan(img_t *img, direction_t dir, int d)
|
|
|
|
{
|
2011-10-16 17:39:22 +02:00
|
|
|
/* d < 0: screen-wise
|
|
|
|
* d = 0: 1/5 of screen
|
|
|
|
* d > 0: num of pixels
|
|
|
|
*/
|
2011-10-16 18:31:01 +02:00
|
|
|
float x, y;
|
2011-10-16 17:39:22 +02:00
|
|
|
|
|
|
|
if (d > 0) {
|
2011-10-16 18:31:01 +02:00
|
|
|
x = y = MAX(1, (float) d * img->zoom);
|
2011-10-16 17:39:22 +02:00
|
|
|
} else {
|
|
|
|
x = img->win->w / (d < 0 ? 1 : 5);
|
|
|
|
y = img->win->h / (d < 0 ? 1 : 5);
|
|
|
|
}
|
|
|
|
|
2011-01-21 13:48:02 +01:00
|
|
|
switch (dir) {
|
2011-07-22 14:49:06 +02:00
|
|
|
case DIR_LEFT:
|
2011-10-16 18:31:01 +02:00
|
|
|
return img_move(img, x, 0.0);
|
2011-07-22 14:49:06 +02:00
|
|
|
case DIR_RIGHT:
|
2011-10-16 18:31:01 +02:00
|
|
|
return img_move(img, -x, 0.0);
|
2011-07-22 14:49:06 +02:00
|
|
|
case DIR_UP:
|
2011-10-16 18:31:01 +02:00
|
|
|
return img_move(img, 0.0, y);
|
2011-07-22 14:49:06 +02:00
|
|
|
case DIR_DOWN:
|
2011-10-16 18:31:01 +02:00
|
|
|
return img_move(img, 0.0, -y);
|
2011-01-21 13:48:02 +01:00
|
|
|
}
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-01-21 13:48:02 +01:00
|
|
|
}
|
2011-01-26 14:42:10 +01:00
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_pan_edge(img_t *img, direction_t dir)
|
|
|
|
{
|
2011-05-16 15:54:09 +02:00
|
|
|
int ox, oy;
|
|
|
|
|
|
|
|
ox = img->x;
|
|
|
|
oy = img->y;
|
|
|
|
|
2014-07-23 23:41:23 +02:00
|
|
|
if (dir & DIR_LEFT)
|
|
|
|
img->x = 0;
|
|
|
|
if (dir & DIR_RIGHT)
|
|
|
|
img->x = img->win->w - img->w * img->zoom;
|
|
|
|
if (dir & DIR_UP)
|
|
|
|
img->y = 0;
|
|
|
|
if (dir & DIR_DOWN)
|
|
|
|
img->y = img->win->h - img->h * img->zoom;
|
2011-05-16 15:54:09 +02:00
|
|
|
|
2011-09-17 17:23:51 +02:00
|
|
|
img_check_pan(img, true);
|
2011-05-16 15:54:09 +02:00
|
|
|
|
2011-09-11 01:13:45 +02:00
|
|
|
if (ox != img->x || oy != img->y) {
|
2011-09-11 21:01:24 +02:00
|
|
|
img->dirty = true;
|
|
|
|
return true;
|
2011-09-11 01:13:45 +02:00
|
|
|
} else {
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-09-11 01:13:45 +02:00
|
|
|
}
|
2011-05-16 15:54:09 +02:00
|
|
|
}
|
|
|
|
|
2013-08-10 15:55:18 +02:00
|
|
|
void img_rotate(img_t *img, degree_t d)
|
2013-02-08 22:05:31 +01:00
|
|
|
{
|
2014-01-09 20:32:22 +01:00
|
|
|
int i, ox, oy, tmp;
|
2011-01-26 14:42:10 +01:00
|
|
|
|
2011-02-25 12:08:12 +01:00
|
|
|
imlib_context_set_image(img->im);
|
2011-01-26 14:42:10 +01:00
|
|
|
imlib_image_orientate(d);
|
|
|
|
|
2014-01-09 20:32:22 +01:00
|
|
|
for (i = 0; i < img->multi.cnt; i++) {
|
|
|
|
if (i != img->multi.sel) {
|
|
|
|
imlib_context_set_image(img->multi.frames[i].im);
|
|
|
|
imlib_image_orientate(d);
|
|
|
|
}
|
|
|
|
}
|
2013-08-10 15:55:18 +02:00
|
|
|
if (d == DEGREE_90 || d == DEGREE_270) {
|
|
|
|
ox = d == DEGREE_90 ? img->x : img->win->w - img->x - img->w * img->zoom;
|
|
|
|
oy = d == DEGREE_270 ? img->y : img->win->h - img->y - img->h * img->zoom;
|
|
|
|
|
|
|
|
img->x = oy + (img->win->w - img->win->h) / 2;
|
|
|
|
img->y = ox + (img->win->h - img->win->w) / 2;
|
2011-01-26 14:42:10 +01:00
|
|
|
|
2013-06-23 16:02:26 +02:00
|
|
|
tmp = img->w;
|
|
|
|
img->w = img->h;
|
|
|
|
img->h = tmp;
|
|
|
|
img->checkpan = true;
|
|
|
|
}
|
2011-09-11 21:01:24 +02:00
|
|
|
img->dirty = true;
|
2011-01-26 14:42:10 +01:00
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
void img_flip(img_t *img, flipdir_t d)
|
|
|
|
{
|
2014-01-09 20:32:22 +01:00
|
|
|
int i;
|
|
|
|
void (*imlib_flip_op[3])(void) = {
|
|
|
|
imlib_image_flip_horizontal,
|
|
|
|
imlib_image_flip_vertical,
|
|
|
|
imlib_image_flip_diagonal
|
|
|
|
};
|
|
|
|
|
|
|
|
d = (d & (FLIP_HORIZONTAL | FLIP_VERTICAL)) - 1;
|
|
|
|
|
2015-10-28 20:59:48 +01:00
|
|
|
if (d < 0 || d >= ARRLEN(imlib_flip_op))
|
2012-05-06 09:39:45 +02:00
|
|
|
return;
|
|
|
|
|
|
|
|
imlib_context_set_image(img->im);
|
2014-01-09 20:32:22 +01:00
|
|
|
imlib_flip_op[d]();
|
2012-05-06 09:39:45 +02:00
|
|
|
|
2014-01-09 20:32:22 +01:00
|
|
|
for (i = 0; i < img->multi.cnt; i++) {
|
|
|
|
if (i != img->multi.sel) {
|
|
|
|
imlib_context_set_image(img->multi.frames[i].im);
|
|
|
|
imlib_flip_op[d]();
|
|
|
|
}
|
2014-01-09 20:24:58 +01:00
|
|
|
}
|
2012-05-06 13:02:34 +02:00
|
|
|
img->dirty = true;
|
2012-05-06 09:39:45 +02:00
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
void img_toggle_antialias(img_t *img)
|
|
|
|
{
|
2011-09-11 21:01:24 +02:00
|
|
|
img->aa = !img->aa;
|
2011-09-11 01:13:45 +02:00
|
|
|
imlib_context_set_image(img->im);
|
|
|
|
imlib_context_set_anti_alias(img->aa);
|
2011-09-11 21:01:24 +02:00
|
|
|
img->dirty = true;
|
2011-01-26 14:59:32 +01:00
|
|
|
}
|
2011-08-18 16:05:32 +02:00
|
|
|
|
2013-11-14 17:06:20 +01:00
|
|
|
bool img_change_gamma(img_t *img, int d)
|
2013-11-13 20:54:09 +01:00
|
|
|
{
|
2013-11-14 17:06:20 +01:00
|
|
|
/* d < 0: decrease gamma
|
|
|
|
* d = 0: reset gamma
|
|
|
|
* d > 0: increase gamma
|
|
|
|
*/
|
|
|
|
int gamma;
|
2015-01-05 20:53:04 +01:00
|
|
|
double range;
|
2013-11-13 20:54:09 +01:00
|
|
|
|
2013-11-14 17:06:20 +01:00
|
|
|
if (d == 0)
|
|
|
|
gamma = 0;
|
|
|
|
else
|
2015-01-05 20:53:04 +01:00
|
|
|
gamma = MIN(MAX(img->gamma + d, -GAMMA_RANGE), GAMMA_RANGE);
|
2013-11-14 17:06:20 +01:00
|
|
|
|
|
|
|
if (img->gamma != gamma) {
|
2015-01-05 20:53:04 +01:00
|
|
|
imlib_reset_color_modifier();
|
|
|
|
if (gamma != 0) {
|
|
|
|
range = gamma <= 0 ? 1.0 : GAMMA_MAX - 1.0;
|
|
|
|
imlib_modify_color_modifier_gamma(1.0 + gamma * (range / GAMMA_RANGE));
|
|
|
|
}
|
2013-11-14 17:06:20 +01:00
|
|
|
img->gamma = gamma;
|
2013-11-13 20:54:09 +01:00
|
|
|
img->dirty = true;
|
2013-11-14 17:06:20 +01:00
|
|
|
return true;
|
|
|
|
} else {
|
|
|
|
return false;
|
2013-11-13 20:54:09 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_frame_goto(img_t *img, int n)
|
|
|
|
{
|
2011-09-17 17:23:51 +02:00
|
|
|
if (n < 0 || n >= img->multi.cnt || n == img->multi.sel)
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-08-18 16:05:32 +02:00
|
|
|
|
|
|
|
img->multi.sel = n;
|
|
|
|
img->im = img->multi.frames[n].im;
|
|
|
|
|
|
|
|
imlib_context_set_image(img->im);
|
|
|
|
img->w = imlib_image_get_width();
|
|
|
|
img->h = imlib_image_get_height();
|
2011-09-11 21:01:24 +02:00
|
|
|
img->checkpan = true;
|
|
|
|
img->dirty = true;
|
2011-08-18 16:05:32 +02:00
|
|
|
|
2011-09-11 21:01:24 +02:00
|
|
|
return true;
|
2011-08-18 16:05:32 +02:00
|
|
|
}
|
|
|
|
|
2013-02-08 22:05:31 +01:00
|
|
|
bool img_frame_navigate(img_t *img, int d)
|
|
|
|
{
|
2015-10-28 20:59:48 +01:00
|
|
|
if (img->multi.cnt == 0 || d == 0)
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-08-18 16:05:32 +02:00
|
|
|
|
|
|
|
d += img->multi.sel;
|
|
|
|
if (d < 0)
|
|
|
|
d = 0;
|
|
|
|
else if (d >= img->multi.cnt)
|
|
|
|
d = img->multi.cnt - 1;
|
|
|
|
|
|
|
|
return img_frame_goto(img, d);
|
|
|
|
}
|
|
|
|
|
2014-09-01 20:41:27 +02:00
|
|
|
bool img_frame_animate(img_t *img)
|
2013-02-08 22:05:31 +01:00
|
|
|
{
|
2015-10-28 20:59:48 +01:00
|
|
|
if (img->multi.cnt == 0)
|
2011-09-11 21:01:24 +02:00
|
|
|
return false;
|
2011-08-18 16:05:32 +02:00
|
|
|
|
2014-09-01 20:41:27 +02:00
|
|
|
if (img->multi.sel + 1 >= img->multi.cnt)
|
2014-07-25 22:52:31 +02:00
|
|
|
img_frame_goto(img, 0);
|
2014-09-01 20:41:27 +02:00
|
|
|
else
|
2011-08-18 16:05:32 +02:00
|
|
|
img_frame_goto(img, img->multi.sel + 1);
|
2014-09-01 20:41:27 +02:00
|
|
|
img->dirty = true;
|
|
|
|
return true;
|
2011-08-18 16:05:32 +02:00
|
|
|
}
|
2014-07-25 22:52:31 +02:00
|
|
|
|