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Added support for gif animation

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This commit is contained in:
Bert 2011-08-18 16:05:32 +02:00
parent a4b90aee20
commit 8b3ae5027e
7 changed files with 126 additions and 36 deletions
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3
commands.c
View file

@ -41,6 +41,7 @@ extern int filecnt, fileidx;
extern int timo_cursor;
extern int timo_redraw;
extern int timo_delay;
int it_quit(arg_t a) {
cleanup();
@ -148,7 +149,7 @@ int it_last(arg_t a) {
}
int i_navigate_frame(arg_t a) {
return img_change_frame(&img, (int) a);
return img_frame_navigate(&img, (int) a);
}
int it_move(arg_t a) {

7
config.h
View file

@ -29,6 +29,13 @@ static const float zoom_levels[] = {
100.0, 150.0, 200.0, 400.0, 800.0
};
/* default settings for gif images: */
enum {
GIF_DELAY = 100, /* delay time (in ms) */
GIF_AUTOPLAY = 1, /* autoplay when loaded [0/1] */
GIF_LOOP = 0 /* endless loop [0/1] */
};
#endif
#ifdef _THUMBS_CONFIG

104
image.c
View file

@ -32,6 +32,8 @@
#include "util.h"
#include "config.h"
enum { MIN_GIF_DELAY = 50 };
int zl_cnt;
float zoom_min;
float zoom_max;
@ -44,6 +46,7 @@ void img_init(img_t *img, win_t *win) {
if (img) {
img->im = NULL;
img->multi.cap = img->multi.cnt = 0;
img->multi.animate = 0;
img->zoom = options->zoom;
img->zoom = MAX(img->zoom, zoom_min);
img->zoom = MIN(img->zoom, zoom_max);
@ -72,11 +75,12 @@ int img_load_gif(img_t *img, const fileinfo_t *file) {
int intoffset[] = { 0, 4, 2, 1 };
int intjump[] = { 8, 8, 4, 2 };
int err = 0, transp = -1;
unsigned int delay = 0;
if (img->multi.cap == 0) {
img->multi.cap = 8;
img->multi.frames = (Imlib_Image**)
s_malloc(sizeof(Imlib_Image*) * img->multi.cap);
img->multi.frames = (img_frame_t*)
s_malloc(sizeof(img_frame_t) * img->multi.cap);
}
img->multi.cnt = 0;
img->multi.sel = 0;
@ -107,6 +111,10 @@ int img_load_gif(img_t *img, const fileinfo_t *file) {
transp = (int) ext[4];
else
transp = -1;
delay = 10 * ((unsigned int) ext[3] << 8 | (unsigned int) ext[2]);
if (delay)
delay = MAX(delay, MIN_GIF_DELAY);
}
ext = NULL;
DGifGetExtensionNext(gif, &ext);
@ -186,11 +194,13 @@ int img_load_gif(img_t *img, const fileinfo_t *file) {
if (img->multi.cnt == img->multi.cap) {
img->multi.cap *= 2;
img->multi.frames = (Imlib_Image**)
img->multi.frames = (img_frame_t*)
s_realloc(img->multi.frames,
img->multi.cap * sizeof(Imlib_Image*));
img->multi.cap * sizeof(img_frame_t));
}
img->multi.frames[img->multi.cnt++] = im;
img->multi.frames[img->multi.cnt].im = im;
img->multi.frames[img->multi.cnt].delay = delay ? delay : GIF_DELAY;
img->multi.cnt++;
}
} while (rec != TERMINATE_RECORD_TYPE);
@ -199,13 +209,15 @@ int img_load_gif(img_t *img, const fileinfo_t *file) {
if (!err && img->multi.cnt > 1) {
imlib_context_set_image(img->im);
imlib_free_image();
img->im = img->multi.frames[0];
img->im = img->multi.frames[0].im;
img->multi.animate = GIF_AUTOPLAY;
} else {
for (i = 0; i < img->multi.cnt; i++) {
imlib_context_set_image(img->multi.frames[i]);
imlib_context_set_image(img->multi.frames[i].im);
imlib_free_image();
}
img->multi.cnt = 0;
img->multi.animate = 0;
}
imlib_context_set_image(img->im);
@ -256,7 +268,7 @@ void img_close(img_t *img, int decache) {
if (img->multi.cnt) {
for (i = 0; i < img->multi.cnt; i++) {
imlib_context_set_image(img->multi.frames[i]);
imlib_context_set_image(img->multi.frames[i].im);
imlib_free_image();
}
img->multi.cnt = 0;
@ -378,27 +390,6 @@ void img_render(img_t *img, win_t *win) {
win_draw(win);
}
int img_change_frame(img_t *img, int d) {
if (!img || !img->multi.cnt || !d)
return 0;
d += img->multi.sel;
if (d < 0)
d = 0;
else if (d >= img->multi.cnt)
d = img->multi.cnt - 1;
img->multi.sel = d;
img->im = img->multi.frames[d];
imlib_context_set_image(img->im);
img->w = imlib_image_get_width();
img->h = imlib_image_get_height();
img->checkpan = 1;
return 1;
}
int img_fit_win(img_t *img, win_t *win) {
if (!img || !img->im || !win)
return 0;
@ -569,3 +560,58 @@ void img_toggle_antialias(img_t *img) {
imlib_context_set_anti_alias(img->aa);
}
}
int img_frame_goto(img_t *img, int n) {
if (!img || n < 0 || n >= img->multi.cnt)
return 0;
if (n == img->multi.sel)
return 0;
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();
img->checkpan = 1;
return 1;
}
int img_frame_navigate(img_t *img, int d) {
if (!img || !img->multi.cnt || !d)
return 0;
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);
}
int img_frame_animate(img_t *img, int restart) {
if (!img || !img->multi.cnt)
return 0;
if (!img->multi.animate && !restart)
return 0;
if (restart) {
img_frame_goto(img, 0);
img->multi.animate = 1;
} else if (img->multi.sel + 1 >= img->multi.cnt) {
if (!GIF_LOOP) {
img->multi.animate = 0;
return 0;
} else {
img_frame_goto(img, 0);
}
} else {
img_frame_goto(img, img->multi.sel + 1);
}
return img->multi.frames[img->multi.sel].delay;
}

13
image.h
View file

@ -25,10 +25,16 @@
#include "window.h"
typedef struct {
Imlib_Image *im;
unsigned int delay;
} img_frame_t;
typedef struct {
img_frame_t *frames;
int cap;
int cnt;
int sel;
Imlib_Image **frames;
unsigned char animate;
} multi_img_t;
typedef struct {
@ -56,8 +62,6 @@ void img_close(img_t*, int);
void img_render(img_t*, win_t*);
int img_change_frame(img_t*, int);
int img_fit_win(img_t*, win_t*);
int img_center(img_t*, win_t*);
@ -74,4 +78,7 @@ void img_rotate_right(img_t*, win_t*);
void img_toggle_antialias(img_t*);
int img_frame_navigate(img_t*, int);
int img_frame_animate(img_t*, int);
#endif /* IMAGE_H */

20
main.c
View file

@ -54,6 +54,7 @@ char win_title[TITLE_LEN];
int timo_cursor;
int timo_redraw;
int timo_adelay; /* multi-frame animation delay time */
void cleanup() {
static int in = 0;
@ -140,6 +141,9 @@ void load_image(int new) {
filesize = fstats.st_size;
else
filesize = 0;
if (img.multi.cnt && img.multi.animate)
timo_adelay = img.multi.frames[img.multi.sel].delay;
}
void update_title() {
@ -296,10 +300,12 @@ void run() {
} else {
timo_redraw = TO_THUMBS_LOAD;
}
} else if (timo_cursor || timo_redraw) {
}
if (timo_cursor || timo_redraw || timo_adelay) {
/* check active timeouts */
gettimeofday(&t0, 0);
timeout = MIN(timo_cursor + 1, timo_redraw + 1);
timeout = min_int_nz(3, timo_cursor, timo_redraw, timo_adelay);
MSEC_TO_TIMEVAL(timeout, &tt);
xfd = ConnectionNumber(win.env.dpy);
FD_ZERO(&fds);
@ -321,7 +327,15 @@ void run() {
if (!timo_redraw)
redraw();
}
if ((timo_cursor || timo_redraw) && !XPending(win.env.dpy))
if (timo_adelay) {
timo_adelay = MAX(0, timo_adelay - timeout);
if (!timo_adelay) {
if ((timo_adelay = img_frame_animate(&img, 0)))
redraw();
}
}
if ((timo_cursor || timo_redraw || timo_adelay) &&
!XPending(win.env.dpy))
continue;
}

13
util.c
View file

@ -87,6 +87,19 @@ void die(const char* fmt, ...) {
exit(1);
}
int min_int_nz(int n, ...) {
va_list args;
int i, a, m = 0;
va_start(args, n);
for (i = 0; i < n; i++) {
if ((a = va_arg(args, int)) && (!m || a < m))
m = a;
}
va_end(args);
return m;
}
void size_readable(float *size, const char **unit) {
const char *units[] = { "", "K", "M", "G" };
int i;

2
util.h
View file

@ -60,6 +60,8 @@ char* s_strdup(char*);
void warn(const char*, ...);
void die(const char*, ...);
int min_int_nz(int, ...);
void size_readable(float*, const char**);
char* absolute_path(const char*);