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Revised thumbnail loading...

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- Only load the thumbnails that are currently visible in the window
- Unload thumbnails that are leaving the visible area
- Much less memory needed, but scrolling is now slower
- This also unintentionally fixes issue #86
This commit is contained in:
Bert Münnich
2014-09-25 20:57:24 +02:00
parent 52e56c8924
commit eaa269b6cb
5 changed files with 71 additions and 45 deletions
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33
main.c
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@@ -368,14 +368,13 @@ void update_info(void)
return;
mark = files[fileidx].marked ? "+ " : "";
if (mode == MODE_THUMB) {
if (tns.loadnext >= filecnt) {
n = snprintf(rt, rlen, "%s%0*d/%d", mark, fw, fileidx + 1, filecnt);
ow_info = true;
} else {
snprintf(lt, llen, "Loading... %0*d/%d", fw, tns.loadnext, filecnt);
rt[0] = '\0';
if (tns.loadnext < tns.end) {
snprintf(lt, llen, "Loading... %0*d", fw, tns.loadnext);
ow_info = false;
} else {
ow_info = true;
}
n = snprintf(rt, rlen, "%s%0*d/%d", mark, fw, fileidx + 1, filecnt);
} else {
n = snprintf(rt, rlen, "%s", mark);
if (img.ss.on)
@@ -439,7 +438,7 @@ void reset_cursor(void)
}
}
} else {
if (tns.loadnext < filecnt)
if (tns.loadnext < tns.end)
cursor = CURSOR_WATCH;
else
cursor = CURSOR_ARROW;
@@ -531,7 +530,7 @@ void run_key_handler(const char *key, unsigned int mask)
memcmp(&oldst->st_mtime, &newst.st_mtime, sizeof(newst.st_mtime)) != 0)
{
if (tns.thumbs != NULL) {
tns.thumbs[finfo[i].fn].loaded = false;
tns_unload(&tns, finfo[i].fn);
tns.loadnext = MIN(tns.loadnext, finfo[i].fn);
}
changed = true;
@@ -669,29 +668,24 @@ void run(void)
int xfd;
fd_set fds;
struct timeval timeout;
bool discard, reload, to_set;
bool discard, to_set;
XEvent ev, nextev;
set_timeout(redraw, 25, false);
while (true) {
while (mode == MODE_THUMB && tns.loadnext < filecnt &&
while (mode == MODE_THUMB && tns.loadnext < tns.end &&
XPending(win.env.dpy) == 0)
{
/* load thumbnails */
reload = tns.loadnext != tns.cnt;
set_timeout(redraw, TO_REDRAW_THUMBS, false);
if (tns_load(&tns, tns.loadnext, reload)) {
if (!reload)
tns.cnt++;
} else {
if (!tns_load(&tns, tns.loadnext, false)) {
remove_file(tns.loadnext, false);
if (reload)
tns.dirty = true;
tns.dirty = true;
}
while (tns.loadnext < filecnt && tns.thumbs[tns.loadnext].loaded)
while (tns.loadnext < tns.end && tns.thumbs[tns.loadnext].im != NULL)
tns.loadnext++;
if (tns.loadnext >= filecnt)
if (tns.loadnext >= tns.end)
redraw();
else
check_timeouts(NULL);
@@ -882,7 +876,6 @@ int main(int argc, char **argv)
tns_init(&tns, files, filecnt, &fileidx, &win);
while (!tns_load(&tns, 0, false))
remove_file(0, false);
tns.cnt = 1;
} else {
mode = MODE_IMAGE;
tns.thumbs = NULL;