const zbar_symbol_set_t*
zbar_processor_get_results (const zbar_processor_t *proc)
{
zbar_processor_t *ncproc = (zbar_processor_t*)proc;
proc_enter(ncproc);
const zbar_symbol_set_t *syms = proc->syms;
if(syms)
zbar_symbol_set_ref(syms, 1);
proc_leave(ncproc);
return(syms);
}
JNIEXPORT jlong JNICALL
Java_net_sourceforge_zbar_Image_getSymbols (JNIEnv *env,
jobject obj,
jlong peer)
{
const zbar_symbol_set_t *zsyms = zbar_image_get_symbols(PEER_CAST(peer));
if(zsyms) {
zbar_symbol_set_ref(zsyms, 1);
stats.SymbolSet_create++;
}
return((intptr_t)zsyms);
}
void _zbar_symbol_free (zbar_symbol_t *sym)
{
if(sym->syms) {
zbar_symbol_set_ref(sym->syms, -1);
sym->syms = NULL;
}
if(sym->pts)
free(sym->pts);
if(sym->data_alloc && sym->data)
free(sym->data);
free(sym);
}
zbarSymbolSet*
zbarSymbolSet_FromSymbolSet(const zbar_symbol_set_t *zsyms)
{
zbarSymbolSet *self = PyObject_New(zbarSymbolSet, &zbarSymbolSet_Type);
if(!self)
return(NULL);
if(zsyms) {
zbar_symbol_set_t *ncsyms = (zbar_symbol_set_t*)zsyms;
zbar_symbol_set_ref(ncsyms, 1);
}
self->zsyms = zsyms;
return(self);
}
int zbar_scan_image (zbar_image_scanner_t *iscn,
zbar_image_t *img)
{
/* timestamp image
* FIXME prefer video timestamp
*/
#if _POSIX_TIMERS > 0
struct timespec abstime;
clock_gettime(CLOCK_REALTIME, &abstime);
iscn->time = (abstime.tv_sec * 1000) + ((abstime.tv_nsec / 500000) + 1) / 2;
#else
struct timeval abstime;
gettimeofday(&abstime, NULL);
iscn->time = (abstime.tv_sec * 1000) + ((abstime.tv_usec / 500) + 1) / 2;
#endif
#ifdef ENABLE_QRCODE
_zbar_qr_reset(iscn->qr);
#endif
/* get grayscale image, convert if necessary */
if(img->format != fourcc('Y','8','0','0') &&
img->format != fourcc('G','R','E','Y')){
printf("ERROR: zbar unsupported format: %x ", img->format);
return(-1);
}
iscn->img = img;
/* recycle previous scanner and image results */
zbar_image_scanner_recycle_image(iscn, img);
zbar_symbol_set_t *syms = iscn->syms;
if(!syms) {
syms = iscn->syms = _zbar_symbol_set_create();
STAT(syms_new);
zbar_symbol_set_ref(syms, 1);
}
else
zbar_symbol_set_ref(syms, 2);
img->syms = syms;
unsigned w = img->width;
unsigned h = img->height;
const uint8_t *data = img->data;
zbar_image_write_png(img, "debug.png");
svg_open("debug.svg", 0, 0, w, h);
svg_image("debug.png", w, h);
zbar_scanner_t *scn = iscn->scn;
int density = CFG(iscn, ZBAR_CFG_Y_DENSITY);
if(density > 0) {
svg_group_start("scanner", 0, 1, 1, 0, 0);
const uint8_t *p = data;
int x = 0, y = 0;
iscn->dy = 0;
int border = (((h - 1) % density) + 1) / 2;
if(border > h / 2)
border = h / 2;
movedelta(0, border);
iscn->v = y;
zbar_scanner_new_scan(scn);
while(y < h) {
zprintf(128, "img_x+: %04d,%04d @%p\n", x, y, p);
svg_path_start("vedge", 1. / 32, 0, y + 0.5);
iscn->dx = iscn->du = 1;
iscn->umin = 0;
while(x < w) {
uint8_t d = *p;
movedelta(1, 0);
zbar_scan_y(scn, d);
}
ASSERT_POS;
quiet_border(iscn);
svg_path_end();
movedelta(-1, density);
iscn->v = y;
if(y >= h)
break;
zprintf(128, "img_x-: %04d,%04d @%p\n", x, y, p);
svg_path_start("vedge", -1. / 32, w, y + 0.5);
iscn->dx = iscn->du = -1;
iscn->umin = w;
while(x >= 0) {
uint8_t d = *p;
movedelta(-1, 0);
zbar_scan_y(scn, d);
}
ASSERT_POS;
quiet_border(iscn);
svg_path_end();
movedelta(1, density);
iscn->v = y;
}
svg_group_end();
}
iscn->dx = 0;
density = CFG(iscn, ZBAR_CFG_X_DENSITY);
if(density > 0) {
svg_group_start("scanner", 90, 1, -1, 0, 0);
const uint8_t *p = data;
int x = 0, y = 0;
int border = (((w - 1) % density) + 1) / 2;
if(border > w / 2)
border = w / 2;
movedelta(border, 0);
iscn->v = x;
while(x < w) {
zprintf(128, "img_y+: %04d,%04d @%p\n", x, y, p);
svg_path_start("vedge", 1. / 32, 0, x + 0.5);
iscn->dy = iscn->du = 1;
iscn->umin = 0;
while(y < h) {
uint8_t d = *p;
movedelta(0, 1);
zbar_scan_y(scn, d);
}
ASSERT_POS;
quiet_border(iscn);
svg_path_end();
movedelta(density, -1);
iscn->v = x;
if(x >= w)
break;
zprintf(128, "img_y-: %04d,%04d @%p\n", x, y, p);
svg_path_start("vedge", -1. / 32, h, x + 0.5);
iscn->dy = iscn->du = -1;
iscn->umin = h;
while(y >= 0) {
uint8_t d = *p;
movedelta(0, -1);
zbar_scan_y(scn, d);
}
ASSERT_POS;
quiet_border(iscn);
svg_path_end();
movedelta(density, 1);
iscn->v = x;
}
svg_group_end();
}
iscn->dy = 0;
iscn->img = NULL;
#ifdef ENABLE_QRCODE
_zbar_qr_decode(iscn->qr, iscn, img);
#endif
/* FIXME tmp hack to filter bad EAN results */
if(syms->nsyms && !iscn->enable_cache &&
(density == 1 || CFG(iscn, ZBAR_CFG_Y_DENSITY) == 1)) {
zbar_symbol_t **symp = &syms->head, *sym;
while((sym = *symp)) {
if(sym->type < ZBAR_I25 && sym->type > ZBAR_PARTIAL &&
sym->quality < 3) {
/* recycle */
*symp = sym->next;
syms->nsyms--;
sym->next = NULL;
_zbar_image_scanner_recycle_syms(iscn, sym);
}
else
symp = &sym->next;
}
}
if(syms->nsyms && iscn->handler)
iscn->handler(img, iscn->userdata);
svg_close();
return(syms->nsyms);
}
inline int zbar_window_redraw (zbar_window_t *w)
{
if(window_lock(w))
return(-1);
if(!w->display || _zbar_window_begin(w)) {
(void)window_unlock(w);
return(-1);
}
int rc = 0;
zbar_image_t *img = w->image;
if(w->init && w->draw_image && img) {
int format_change = (w->src_format != img->format &&
w->format != img->format);
if(format_change) {
_zbar_best_format(img->format, &w->format, w->formats);
if(!w->format)
rc = err_capture_int(w, SEV_ERROR, ZBAR_ERR_UNSUPPORTED, __func__,
"no conversion from %x to supported formats",
img->format);
w->src_format = img->format;
}
if(!rc && (format_change || !w->scaled_size.x || !w->dst_width)) {
zprintf(24, "init: src=%.4s(%08lx) %dx%d dst=%.4s(%08lx) %dx%d\n",
(char*)&w->src_format, w->src_format,
w->src_width, w->src_height,
(char*)&w->format, w->format,
w->dst_width, w->dst_height);
if(!w->dst_width) {
w->src_width = img->width;
w->src_height = img->height;
}
point_t size = { w->width, w->height };
if(size.x > w->max_width)
size.x = w->max_width;
if(size.y > w->max_height)
size.y = w->max_height;
if(size.x * w->src_height < size.y * w->src_width) {
w->scale_num = size.x;
w->scale_den = w->src_width;
}
else {
w->scale_num = size.y;
w->scale_den = w->src_height;
}
rc = w->init(w, img, format_change);
if(!rc) {
size.x = w->src_width;
size.y = w->src_height;
w->scaled_size = size = window_scale_pt(w, size);
w->scaled_offset.x = ((int)w->width - size.x) / 2;
w->scaled_offset.y = ((int)w->height - size.y) / 2;
zprintf(24, "scale: src=%dx%d win=%dx%d by %d/%d => %dx%d @%d,%d\n",
w->src_width, w->src_height, w->width, w->height,
w->scale_num, w->scale_den,
size.x, size.y, w->scaled_offset.x, w->scaled_offset.y);
}
else {
/* unable to display this image */
_zbar_image_refcnt(img, -1);
w->image = img = NULL;
}
}
if(!rc &&
(img->format != w->format ||
img->width != w->dst_width ||
img->height != w->dst_height)) {
/* save *converted* image for redraw */
zprintf(48, "convert: %.4s(%08lx) %dx%d => %.4s(%08lx) %dx%d\n",
(char*)&img->format, img->format, img->width, img->height,
(char*)&w->format, w->format, w->dst_width, w->dst_height);
w->image = zbar_image_convert_resize(img, w->format,
w->dst_width, w->dst_height);
w->image->syms = img->syms;
if(img->syms)
zbar_symbol_set_ref(img->syms, 1);
zbar_image_destroy(img);
img = w->image;
}
if(!rc) {
rc = w->draw_image(w, img);
point_t org = w->scaled_offset;
if(org.x > 0) {
point_t p = { 0, org.y };
point_t s = { org.x, w->scaled_size.y };
_zbar_window_fill_rect(w, 0, p, s);
s.x = w->width - w->scaled_size.x - s.x;
if(s.x > 0) {
p.x = w->width - s.x;
_zbar_window_fill_rect(w, 0, p, s);
}
}
if(org.y > 0) {
point_t p = { 0, 0 };
point_t s = { w->width, org.y };
_zbar_window_fill_rect(w, 0, p, s);
s.y = w->height - w->scaled_size.y - s.y;
if(s.y > 0) {
p.y = w->height - s.y;
_zbar_window_fill_rect(w, 0, p, s);
}
}
}
if(!rc)
rc = window_draw_overlay(w);
}
else
rc = 1;
if(rc)
rc = _zbar_window_draw_logo(w);
_zbar_window_end(w);
(void)window_unlock(w);
return(rc);
}
int zbar_scan_image (zbar_image_scanner_t *iscn,
zbar_image_t *img)
{
zbar_symbol_set_t *syms;
const uint8_t *data;
zbar_scanner_t *scn = iscn->scn;
unsigned w, h, cx1, cy1;
int density;
/* timestamp image
* FIXME prefer video timestamp
*/
iscn->time = _zbar_timer_now();
#ifdef ENABLE_QRCODE
_zbar_qr_reset(iscn->qr);
#endif
/* image must be in grayscale format */
if(img->format != fourcc('Y','8','0','0') &&
img->format != fourcc('G','R','E','Y'))
return(-1);
iscn->img = img;
/* recycle previous scanner and image results */
zbar_image_scanner_recycle_image(iscn, img);
syms = iscn->syms;
if(!syms) {
syms = iscn->syms = _zbar_symbol_set_create();
STAT(syms_new);
zbar_symbol_set_ref(syms, 1);
}
else
zbar_symbol_set_ref(syms, 2);
img->syms = syms;
w = img->width;
h = img->height;
cx1 = img->crop_x + img->crop_w;
assert(cx1 <= w);
cy1 = img->crop_y + img->crop_h;
assert(cy1 <= h);
data = img->data;
zbar_image_write_png(img, "debug.png");
svg_open("debug.svg", 0, 0, w, h);
svg_image("debug.png", w, h);
zbar_scanner_new_scan(scn);
density = CFG(iscn, ZBAR_CFG_Y_DENSITY);
if(density > 0) {
const uint8_t *p = data;
int x = 0, y = 0;
int border = (((img->crop_h - 1) % density) + 1) / 2;
if(border > img->crop_h / 2)
border = img->crop_h / 2;
border += img->crop_y;
assert(border <= h);
svg_group_start("scanner", 0, 1, 1, 0, 0);
iscn->dy = 0;
movedelta(img->crop_x, border);
iscn->v = y;
while(y < cy1) {
int cx0 = img->crop_x;;
zprintf(128, "img_x+: %04d,%04d @%p\n", x, y, p);
svg_path_start("vedge", 1. / 32, 0, y + 0.5);
iscn->dx = iscn->du = 1;
iscn->umin = cx0;
while(x < cx1) {
uint8_t d = *p;
movedelta(1, 0);
zbar_scan_y(scn, d);
}
ASSERT_POS;
quiet_border(iscn);
svg_path_end();
movedelta(-1, density);
iscn->v = y;
if(y >= cy1)
break;
zprintf(128, "img_x-: %04d,%04d @%p\n", x, y, p);
svg_path_start("vedge", -1. / 32, w, y + 0.5);
iscn->dx = iscn->du = -1;
iscn->umin = cx1;
while(x >= cx0) {
uint8_t d = *p;
movedelta(-1, 0);
zbar_scan_y(scn, d);
}
ASSERT_POS;
quiet_border(iscn);
svg_path_end();
movedelta(1, density);
iscn->v = y;
}
svg_group_end();
}
iscn->dx = 0;
density = CFG(iscn, ZBAR_CFG_X_DENSITY);
if(density > 0) {
const uint8_t *p = data;
int x = 0, y = 0;
int border = (((img->crop_w - 1) % density) + 1) / 2;
if(border > img->crop_w / 2)
border = img->crop_w / 2;
border += img->crop_x;
assert(border <= w);
svg_group_start("scanner", 90, 1, -1, 0, 0);
movedelta(border, img->crop_y);
iscn->v = x;
while(x < cx1) {
int cy0 = img->crop_y;
zprintf(128, "img_y+: %04d,%04d @%p\n", x, y, p);
svg_path_start("vedge", 1. / 32, 0, x + 0.5);
iscn->dy = iscn->du = 1;
iscn->umin = cy0;
while(y < cy1) {
uint8_t d = *p;
movedelta(0, 1);
zbar_scan_y(scn, d);
}
ASSERT_POS;
quiet_border(iscn);
svg_path_end();
movedelta(density, -1);
iscn->v = x;
if(x >= cx1)
break;
zprintf(128, "img_y-: %04d,%04d @%p\n", x, y, p);
svg_path_start("vedge", -1. / 32, h, x + 0.5);
iscn->dy = iscn->du = -1;
iscn->umin = cy1;
while(y >= cy0) {
uint8_t d = *p;
movedelta(0, -1);
zbar_scan_y(scn, d);
}
ASSERT_POS;
quiet_border(iscn);
svg_path_end();
movedelta(density, 1);
iscn->v = x;
}
svg_group_end();
}
iscn->dy = 0;
iscn->img = NULL;
#ifdef ENABLE_QRCODE
_zbar_qr_decode(iscn->qr, iscn, img);
#endif
/* FIXME tmp hack to filter bad EAN results */
/* FIXME tmp hack to merge simple case EAN add-ons */
char filter = (!iscn->enable_cache &&
(density == 1 || CFG(iscn, ZBAR_CFG_Y_DENSITY) == 1));
int nean = 0, naddon = 0;
if(syms->nsyms) {
zbar_symbol_t **symp;
for(symp = &syms->head; *symp; ) {
zbar_symbol_t *sym = *symp;
if(sym->cache_count <= 0 &&
((sym->type < ZBAR_COMPOSITE && sym->type > ZBAR_PARTIAL) ||
sym->type == ZBAR_DATABAR ||
sym->type == ZBAR_DATABAR_EXP ||
sym->type == ZBAR_CODABAR))
{
if((sym->type == ZBAR_CODABAR || filter) && sym->quality < 4) {
if(iscn->enable_cache) {
/* revert cache update */
zbar_symbol_t *entry = cache_lookup(iscn, sym);
if(entry)
entry->cache_count--;
else
assert(0);
}
/* recycle */
*symp = sym->next;
syms->nsyms--;
sym->next = NULL;
_zbar_image_scanner_recycle_syms(iscn, sym);
continue;
}
else if(sym->type < ZBAR_COMPOSITE &&
sym->type != ZBAR_ISBN10)
{
if(sym->type > ZBAR_EAN5)
nean++;
else
naddon++;
}
}
symp = &sym->next;
}
if(nean == 1 && naddon == 1 && iscn->ean_config) {
/* create container symbol for composite result */
zbar_symbol_t *ean = NULL, *addon = NULL;
for(symp = &syms->head; *symp; ) {
zbar_symbol_t *sym = *symp;
if(sym->type < ZBAR_COMPOSITE && sym->type > ZBAR_PARTIAL) {
/* move to composite */
*symp = sym->next;
syms->nsyms--;
sym->next = NULL;
if(sym->type <= ZBAR_EAN5)
addon = sym;
else
ean = sym;
}
else
symp = &sym->next;
}
assert(ean);
assert(addon);
int datalen = ean->datalen + addon->datalen + 1;
zbar_symbol_t *ean_sym =
_zbar_image_scanner_alloc_sym(iscn, ZBAR_COMPOSITE, datalen);
ean_sym->orient = ean->orient;
ean_sym->syms = _zbar_symbol_set_create();
memcpy(ean_sym->data, ean->data, ean->datalen);
memcpy(ean_sym->data + ean->datalen,
addon->data, addon->datalen + 1);
ean_sym->syms->head = ean;
ean->next = addon;
ean_sym->syms->nsyms = 2;
_zbar_image_scanner_add_sym(iscn, ean_sym);
}
}
if(syms->nsyms && iscn->handler)
iscn->handler(img, iscn->userdata);
svg_close();
return(syms->nsyms);
}
/* API lock is already held */
int _zbar_process_image (zbar_processor_t *proc,
zbar_image_t *img)
{
uint32_t force_fmt = proc->force_output;
int nsyms, rc;
if(img) {
zbar_image_t *tmp;
uint32_t format = zbar_image_get_format(img);
zprintf(16, "processing: %.4s(%08lx) %dx%d @%p\n",
(char*)&format, format,
zbar_image_get_width(img), zbar_image_get_height(img),
zbar_image_get_data(img));
/* FIXME locking all other interfaces while processing is conservative
* but easier for now and we don't expect this to take long...
*/
tmp = zbar_image_convert(img, fourcc('Y','8','0','0'));
if(!tmp)
goto error;
if(proc->syms) {
zbar_symbol_set_ref(proc->syms, -1);
proc->syms = NULL;
}
zbar_image_scanner_recycle_image(proc->scanner, img);
nsyms = zbar_scan_image(proc->scanner, tmp);
_zbar_image_swap_symbols(img, tmp);
zbar_image_destroy(tmp);
tmp = NULL;
if(nsyms < 0)
goto error;
proc->syms = zbar_image_scanner_get_results(proc->scanner);
if(proc->syms)
zbar_symbol_set_ref(proc->syms, 1);
if(_zbar_verbosity >= 8) {
const zbar_symbol_t *sym = zbar_image_first_symbol(img);
while(sym) {
zbar_symbol_type_t type = zbar_symbol_get_type(sym);
int count = zbar_symbol_get_count(sym);
zprintf(8, "%s%s: %s (%d pts) (q=%d) (%s)\n",
zbar_get_symbol_name(type),
zbar_get_addon_name(type),
zbar_symbol_get_data(sym),
zbar_symbol_get_loc_size(sym),
zbar_symbol_get_quality(sym),
(count < 0) ? "uncertain" :
(count > 0) ? "duplicate" : "new");
sym = zbar_symbol_next(sym);
}
}
if(nsyms) {
/* FIXME only call after filtering */
_zbar_mutex_lock(&proc->mutex);
_zbar_processor_notify(proc, EVENT_OUTPUT);
_zbar_mutex_unlock(&proc->mutex);
if(proc->handler)
proc->handler(img, proc->userdata);
}
if(force_fmt) {
zbar_symbol_set_t *syms = img->syms;
img = zbar_image_convert(img, force_fmt);
if(!img)
goto error;
img->syms = syms;
zbar_symbol_set_ref(syms, 1);
}
}
/* display to window if enabled */
rc = 0;
if(force_fmt && img)
zbar_image_destroy(img);
return(rc);
error:
return(err_capture(proc, SEV_ERROR, ZBAR_ERR_UNSUPPORTED,
__func__, "unknown image format"));
}
