JNIEXPORT jobject JNICALL
Java_net_sourceforge_zbar_Image_getData (JNIEnv *env,
jobject obj)
{
jobject data = (*env)->GetObjectField(env, obj, Image_data);
if(data)
return(data);
zbar_image_t *zimg = GET_PEER(Image, obj);
data = zbar_image_get_userdata(zimg);
if(data)
return(data);
unsigned long rawlen = zbar_image_get_data_length(zimg);
const void *raw = zbar_image_get_data(zimg);
if(!rawlen || !raw)
return(NULL);
data = (*env)->NewByteArray(env, rawlen);
if(!data)
return(NULL);
(*env)->SetByteArrayRegion(env, data, 0, rawlen, raw);
(*env)->SetObjectField(env, obj, Image_data, data);
return(data);
}
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);
}
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_data (zbarImage *self,
void *closure)
{
assert(zbar_image_get_userdata(self->zimg) == self);
if(self->data) {
Py_INCREF(self->data);
return(self->data);
}
const char *data = zbar_image_get_data(self->zimg);
unsigned long datalen = zbar_image_get_data_length(self->zimg);
if(!data || !datalen) {
Py_INCREF(Py_None);
return(Py_None);
}
self->data = PyBuffer_FromMemory((void*)data, datalen);
Py_INCREF(self->data);
return(self->data);
}
