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Refactored thumbs.c

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Bert 2011-04-08 10:24:10 +02:00
parent a90bd1c833
commit eee921efe0
1 changed files with 98 additions and 104 deletions
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202
thumbs.c
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@ -32,9 +32,104 @@ extern Imlib_Image *im_invalid;
const int thumb_dim = THUMB_SIZE + 10;
char *cache_dir = NULL;
int tns_cache_enabled();
Imlib_Image* tns_cache_load(const char*);
void tns_cache_write(thumb_t*, Bool);
int tns_cache_enabled() {
struct stat stats;
return cache_dir && !stat(cache_dir, &stats) && S_ISDIR(stats.st_mode) &&
!access(cache_dir, W_OK);
}
char* tns_cache_filename(const char *filename) {
size_t len;
char *cfile = NULL;
const char *abspath;
if (!cache_dir || !filename)
return NULL;
if (*filename != '/') {
if (!(abspath = absolute_path(filename)))
return NULL;
} else {
abspath = filename;
}
if (strncmp(abspath, cache_dir, strlen(cache_dir))) {
len = strlen(cache_dir) + strlen(abspath) + 6;
cfile = (char*) s_malloc(len);
snprintf(cfile, len, "%s/%s.png", cache_dir, abspath + 1);
}
if (abspath != filename)
free((void*) abspath);
return cfile;
}
Imlib_Image* tns_cache_load(const char *filename) {
char *cfile;
struct stat cstats, fstats;
Imlib_Image *im = NULL;
if (!filename || stat(filename, &fstats))
return NULL;
if ((cfile = tns_cache_filename(filename))) {
if (!stat(cfile, &cstats) &&
cstats.st_mtim.tv_sec == fstats.st_mtim.tv_sec &&
cstats.st_mtim.tv_nsec == fstats.st_mtim.tv_nsec)
{
printf("cache hit: %s\n", filename);
im = imlib_load_image(cfile);
} else
printf("cache MISS: %s\n", filename);
free(cfile);
}
return im;
}
void tns_cache_write(thumb_t *t, Bool force) {
char *cfile, *dirend;
struct stat cstats, fstats;
struct timeval times[2];
Imlib_Load_Error err = 0;
if (!t || !t->im || !t->filename)
return;
if (stat(t->filename, &fstats))
return;
if ((cfile = tns_cache_filename(t->filename))) {
if (force || stat(cfile, &cstats) ||
cstats.st_mtim.tv_sec != fstats.st_mtim.tv_sec ||
cstats.st_mtim.tv_nsec != fstats.st_mtim.tv_nsec)
{
if ((dirend = strrchr(cfile, '/'))) {
*dirend = '\0';
err = r_mkdir(cfile);
*dirend = '/';
}
if (!err) {
imlib_context_set_image(t->im);
imlib_image_set_format("png");
imlib_save_image_with_error_return(cfile, &err);
}
if (err) {
warn("could not cache thumbnail: %s", t->filename);
} else {
TIMESPEC_TO_TIMEVAL(&times[0], &fstats.st_atim);
TIMESPEC_TO_TIMEVAL(&times[1], &fstats.st_mtim);
utimes(cfile, times);
printf("thumbnail cache file written: %s\n", t->filename);
}
}
free(cfile);
}
}
void tns_init(tns_t *tns, int cnt) {
int len;
@ -314,104 +409,3 @@ int tns_translate(tns_t *tns, int x, int y) {
return -1;
}
/* thumbnail caching */
int tns_cache_enabled() {
struct stat stats;
return cache_dir && !stat(cache_dir, &stats) && S_ISDIR(stats.st_mode) &&
!access(cache_dir, W_OK);
}
char* tns_cache_filename(const char *filename) {
size_t len;
char *cfile = NULL;
const char *abspath;
if (!cache_dir || !filename)
return NULL;
if (*filename != '/') {
if (!(abspath = absolute_path(filename)))
return NULL;
} else {
abspath = filename;
}
if (strncmp(abspath, cache_dir, strlen(cache_dir))) {
len = strlen(cache_dir) + strlen(abspath) + 6;
cfile = (char*) s_malloc(len);
snprintf(cfile, len, "%s/%s.png", cache_dir, abspath + 1);
}
if (abspath != filename)
free((void*) abspath);
return cfile;
}
Imlib_Image* tns_cache_load(const char *filename) {
char *cfile;
struct stat cstats, fstats;
Imlib_Image *im = NULL;
if (!filename || stat(filename, &fstats))
return NULL;
if ((cfile = tns_cache_filename(filename))) {
if (!stat(cfile, &cstats) &&
cstats.st_mtim.tv_sec == fstats.st_mtim.tv_sec &&
cstats.st_mtim.tv_nsec == fstats.st_mtim.tv_nsec)
{
printf("cache hit: %s\n", filename);
im = imlib_load_image(cfile);
} else
printf("cache MISS: %s\n", filename);
free(cfile);
}
return im;
}
void tns_cache_write(thumb_t *t, Bool force) {
char *cfile, *dirend;
struct stat cstats, fstats;
struct timeval times[2];
Imlib_Load_Error err = 0;
if (!t || !t->im || !t->filename)
return;
if (stat(t->filename, &fstats))
return;
if ((cfile = tns_cache_filename(t->filename))) {
if (force || stat(cfile, &cstats) ||
cstats.st_mtim.tv_sec != fstats.st_mtim.tv_sec ||
cstats.st_mtim.tv_nsec != fstats.st_mtim.tv_nsec)
{
if ((dirend = strrchr(cfile, '/'))) {
*dirend = '\0';
err = create_dir_rec(cfile);
*dirend = '/';
}
if (!err) {
imlib_context_set_image(t->im);
imlib_image_set_format("png");
imlib_save_image_with_error_return(cfile, &err);
}
if (err) {
warn("could not cache thumbnail: %s", t->filename);
} else {
TIMESPEC_TO_TIMEVAL(&times[0], &fstats.st_atim);
TIMESPEC_TO_TIMEVAL(&times[1], &fstats.st_mtim);
utimes(cfile, times);
printf("thumbnail cache file written: %s\n", t->filename);
}
}
free(cfile);
}
}