zbar_video_t *zbar_video_create ()
{
zbar_video_t *vdo = calloc(1, sizeof(zbar_video_t));
int i;
if(!vdo)
return(NULL);
err_init(&vdo->err, ZBAR_MOD_VIDEO);
vdo->fd = -1;
(void)_zbar_mutex_init(&vdo->qlock);
/* pre-allocate images */
vdo->num_images = ZBAR_VIDEO_IMAGES_MAX;
vdo->images = calloc(ZBAR_VIDEO_IMAGES_MAX, sizeof(zbar_image_t*));
if(!vdo->images) {
zbar_video_destroy(vdo);
return(NULL);
}
for(i = 0; i < ZBAR_VIDEO_IMAGES_MAX; i++) {
zbar_image_t *img = vdo->images[i] = zbar_image_create();
if(!img) {
zbar_video_destroy(vdo);
return(NULL);
}
img->refcnt = 0;
img->cleanup = _zbar_video_recycle_image;
img->srcidx = i;
img->src = vdo;
}
return(vdo);
}
zbar_window_t *zbar_window_create (void)
{
zbar_window_t *w = calloc(1, sizeof(zbar_window_t));
if(!w)
return(NULL);
err_init(&w->err, ZBAR_MOD_WINDOW);
w->overlay = 1;
(void)_zbar_mutex_init(&w->imglock);
return(w);
}
zbar_processor_t *zbar_processor_create (int threaded)
{
zbar_processor_t *proc = calloc(1, sizeof(zbar_processor_t));
if(!proc)
return(NULL);
err_init(&proc->err, ZBAR_MOD_PROCESSOR);
proc->scanner = zbar_image_scanner_create();
if(!proc->scanner) {
free(proc);
return(NULL);
}
proc->threaded = !_zbar_mutex_init(&proc->mutex) && threaded;
_zbar_processor_init(proc);
return(proc);
}
