[hackers] [sxiv] Add -A option to force framerate on animated images || dwminer

[git]

commit 2c566c5320c11e9844f192bfcff2d1a869471415
Author:     dwminer <daltonmi...@gmail.com>
AuthorDate: Sun Nov 27 02:54:15 2016 -0500
Commit:     dwminer <daltonmi...@gmail.com>
CommitDate: Sun Nov 27 02:59:05 2016 -0500

    Add -A option to force framerate on animated images

diff --git a/image.c b/image.c
index 801bbe5..dd37207 100644
--- a/image.c
+++ b/image.c
@@ -68,6 +68,7 @@ void img_init(img_t *img, win_t *win)
        img->alpha = ALPHA_LAYER;
        img->multi.cap = img->multi.cnt = 0;
        img->multi.animate = options->animate;
+       img->multi.framedelay = options->framerate > 0 ? 1000 / 
options->framerate : 0;
        img->multi.length = 0;
 
        img->cmod = imlib_create_color_modifier();
@@ -263,6 +264,7 @@ bool img_load_gif(img_t *img, const fileinfo_t *file)
                                                             img->multi.cap * 
sizeof(img_frame_t));
                        }
                        img->multi.frames[img->multi.cnt].im = im;
+                       delay = img->multi.framedelay > 0 ? 
img->multi.framedelay : delay;
                        img->multi.frames[img->multi.cnt].delay = delay > 0 ? 
delay : DEF_GIF_DELAY;
                        img->multi.length += 
img->multi.frames[img->multi.cnt].delay;
                        img->multi.cnt++;
diff --git a/image.h b/image.h
index 8932fdf..2813c9b 100644
--- a/image.h
+++ b/image.h
@@ -35,6 +35,7 @@ typedef struct {
        int cnt;
        int sel;
        bool animate;
+       int framedelay;
        int length;
 } multi_img_t;
 
diff --git a/options.c b/options.c
index 4a9772c..b38c146 100644
--- a/options.c
+++ b/options.c
@@ -32,7 +32,7 @@ const options_t *options = (const options_t*) &_options;
 
 void print_usage(void)
 {
-       printf("usage: sxiv [-abcfhioqrtvZ] [-e WID] [-G GAMMA] [-g GEOMETRY] "
+       printf("usage: sxiv [-abcfhioqrtvZ] [-A FRAMERATE] [-e WID] [-G GAMMA] 
[-g GEOMETRY] "
               "[-N NAME] [-n NUM] [-S DELAY] [-s MODE] [-z ZOOM] FILES...\n");
 }
 
@@ -60,6 +60,7 @@ void parse_options(int argc, char **argv)
        _options.animate = false;
        _options.gamma = 0;
        _options.slideshow = 0;
+       _options.framerate = 0;
 
        _options.fullscreen = false;
        _options.embed = 0;
@@ -71,7 +72,7 @@ void parse_options(int argc, char **argv)
        _options.thumb_mode = false;
        _options.clean_cache = false;
 
-       while ((opt = getopt(argc, argv, "abce:fG:g:hin:N:oqrS:s:tvZz:")) != 
-1) {
+       while ((opt = getopt(argc, argv, "aA:bce:fG:g:hin:N:oqrS:s:tvZz:")) != 
-1) {
                switch (opt) {
                        case '?':
                                print_usage();
@@ -79,6 +80,13 @@ void parse_options(int argc, char **argv)
                        case 'a':
                                _options.animate = true;
                                break;
+                       case 'A':
+                               _options.animate = true;
+                               n = strtol(optarg, &end, 0);
+                               if (*end != '\0' || n <= 0)
+                                       error(EXIT_FAILURE, 0, "Invalid 
argument for option -A: %s", optarg);
+                               _options.framerate = n;
+                               break;
                        case 'b':
                                _options.hide_bar = true;
                                break;
diff --git a/options.h b/options.h
index 40c2506..c9879f3 100644
--- a/options.h
+++ b/options.h
@@ -37,6 +37,7 @@ typedef struct {
        bool animate;
        int gamma;
        int slideshow;
+       int framerate;
 
        /* window: */
        bool fullscreen;