int main (int argc, char **argv)
{
zbar_set_verbosity(32);
zbar_processor_t *proc = zbar_processor_create(0);
assert(proc);
if(zbar_processor_init(proc, NULL, 1))
return(2);
zbar_image_t *img = zbar_image_create();
zbar_image_set_size(img, 8, 8);
zbar_image_set_format(img, fourcc('J','P','E','G'));
zbar_image_set_data(img, jpeg, sizeof(jpeg), NULL);
zbar_image_t *test = zbar_image_convert(img, fourcc('Y','8','0','0'));
if(!test)
return(2);
printf("converted: %d x %d (%lx) %08lx\n",
zbar_image_get_width(test),
zbar_image_get_height(test),
zbar_image_get_data_length(test),
zbar_image_get_format(test));
if(zbar_process_image(proc, test) < 0)
return(3);
if(zbar_processor_set_visible(proc, 1))
return(4);
zbar_processor_user_wait(proc, -1);
return(0);
}
static int
image_set_int (zbarImage *self,
PyObject *value,
void *closure)
{
unsigned int tmp, val = PyInt_AsSsize_t(value);
if(val == -1 && PyErr_Occurred()) {
PyErr_SetString(PyExc_TypeError, "expecting an integer");
return(-1);
}
switch((int)closure) {
case 0:
tmp = zbar_image_get_height(self->zimg);
zbar_image_set_size(self->zimg, val, tmp);
break;
case 1:
tmp = zbar_image_get_width(self->zimg);
zbar_image_set_size(self->zimg, tmp, val);
break;
case 2:
zbar_image_set_sequence(self->zimg, val);
default:
assert(0);
}
return(0);
}
static PyObject*
image_get_size (zbarImage *self,
void *closure)
{
unsigned int width = zbar_image_get_width(self->zimg);
unsigned int height = zbar_image_get_height(self->zimg);
return(PyTuple_Pack(2, PyInt_FromLong(width), PyInt_FromLong(height)));
}
int test_image_bars (zbar_image_t *img)
{
allocated_images++;
unsigned w = zbar_image_get_width(img);
unsigned h = zbar_image_get_height(img);
const format_def_t *fmt;
for(fmt = formats; fmt->format; fmt++)
if(fmt->format == zbar_image_get_format(img))
break;
if(!fmt->format)
return(-1);
unsigned long planelen = w * h;
unsigned long datalen = planelen * fmt->bpp / 8;
uint8_t *data = malloc(datalen);
zbar_image_set_data(img, data, datalen, test_cleanup_handler);
fprintf(stderr, "create %.4s(%08" PRIx32 ") image data %lx bytes @%p\n",
(char*)&fmt->format, fmt->format, datalen, data);
uint8_t *p = data;
switch(fmt->type) {
case GRAY:
case YUVP: /* planar YUV */
case YVUP:
p = fill_bars_y(p, w, h);
if(fmt->type != GRAY) {
w = (w + fmt->xdiv - 1) / fmt->xdiv;
h = (h + fmt->ydiv - 1) / fmt->ydiv;
}
else
break;
if(fmt->format == fourcc('N','V','1','2') ||
fmt->format == fourcc('N','V','2','1'))
p = fill_bars_nv(p, w, h, fmt->type);
else if(fmt->type == YUVP ||
fmt->type == YVUP) {
p = fill_bars_uv(p, w, h, (fmt->type == YUVP) ? Cb : Cr);
p = fill_bars_uv(p, w, h, (fmt->type == YUVP) ? Cr : Cb);
}
break;
case YUYV: /* packed YUV */
case YVYU:
case UYVY:
p = fill_bars_yuv(p, w, h, fmt->type);
break;
default: /* RGB */
p = fill_bars_rgb(p, w, h, fmt->type, fmt->bpp);
break;
}
assert(p == data + datalen);
return(0);
}
int
zbarImage_validate (zbarImage *img)
{
if(!zbar_image_get_width(img->zimg) ||
!zbar_image_get_height(img->zimg) ||
!zbar_image_get_data(img->zimg) ||
!zbar_image_get_data_length(img->zimg)) {
PyErr_Format(PyExc_ValueError, "image size and data must be defined");
return(-1);
}
return(0);
}
static PyObject*
image_get_int (zbarImage *self,
void *closure)
{
unsigned int val = -1;
switch((int)closure) {
case 0:
val = zbar_image_get_width(self->zimg); break;
case 1:
val = zbar_image_get_height(self->zimg); break;
case 2:
val = zbar_image_get_sequence(self->zimg); break;
default:
assert(0);
}
return(PyInt_FromLong(val));
}
int zbar_process_image (zbar_processor_t *proc,
zbar_image_t *img)
{
proc_enter(proc);
_zbar_mutex_unlock(&proc->mutex);
int rc = 0;
if(img && proc->window)
rc = _zbar_processor_set_size(proc,
zbar_image_get_width(img),
zbar_image_get_height(img));
if(!rc) {
zbar_image_scanner_enable_cache(proc->scanner, 0);
rc = _zbar_process_image(proc, img);
if(proc->streaming)
zbar_image_scanner_enable_cache(proc->scanner, 1);
}
_zbar_mutex_lock(&proc->mutex);
proc_leave(proc);
return(rc);
}
JNIEXPORT jint JNICALL
Java_net_sourceforge_zbar_Image_getWidth (JNIEnv *env,
jobject obj)
{
return(zbar_image_get_width(GET_PEER(Image, obj)));
}
/* 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"));
}
int zbar_scan_image (zbar_image_scanner_t *iscn,
zbar_image_t *img)
{
recycle_syms(iscn, img);
/* get grayscale image, convert if necessary */
img = zbar_image_convert(img, fourcc('Y','8','0','0'));
if(!img)
return(-1);
unsigned w = zbar_image_get_width(img);
unsigned h = zbar_image_get_height(img);
const uint8_t *data = zbar_image_get_data(img);
/* FIXME less arbitrary lead-out default */
int quiet = w / 32;
if(quiet < 8)
quiet = 8;
int density = CFG(iscn, ZBAR_CFG_Y_DENSITY);
if(density > 0) {
const uint8_t *p = data;
int x = 0, y = 0;
int border = (((h - 1) % density) + 1) / 2;
if(border > h / 2)
border = h / 2;
movedelta(0, border);
if(zbar_scanner_new_scan(iscn->scn))
symbol_handler(iscn, x, y);
while(y < h) {
zprintf(32, "img_x+: %03x,%03x @%p\n", x, y, p);
while(x < w) {
ASSERT_POS;
if(zbar_scan_y(iscn->scn, *p))
symbol_handler(iscn, x, y);
movedelta(1, 0);
}
quiet_border(iscn, quiet, x, y);
movedelta(-1, density);
if(y >= h)
break;
zprintf(32, "img_x-: %03x,%03x @%p\n", x, y, p);
while(x > 0) {
ASSERT_POS;
if(zbar_scan_y(iscn->scn, *p))
symbol_handler(iscn, x, y);
movedelta(-1, 0);
}
quiet_border(iscn, quiet, x, y);
movedelta(1, density);
}
}
density = CFG(iscn, ZBAR_CFG_X_DENSITY);
if(density > 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);
while(x < w) {
zprintf(32, "img_y+: %03x,%03x @%p\n", x, y, p);
while(y < h) {
ASSERT_POS;
if(zbar_scan_y(iscn->scn, *p))
symbol_handler(iscn, x, y);
movedelta(0, 1);
}
quiet_border(iscn, quiet, x, y);
movedelta(density, -1);
if(x >= w)
break;
zprintf(32, "img_y-: %03x,%03x @%p\n", x, y, p);
while(y >= 0) {
ASSERT_POS;
if(zbar_scan_y(iscn->scn, *p))
symbol_handler(iscn, x, y);
movedelta(0, -1);
}
quiet_border(iscn, quiet, x, y);
movedelta(density, 1);
}
}
/* release reference to converted image */
zbar_image_destroy(img);
return(iscn->img->nsyms);
}