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static LV2_DrumGizmo_Descriptor dg_descriptor;
static DrumGizmo *dg_get_pci(LV2_Handle instance)
{
DGLV2 *dglv2 = (DGLV2 *)instance;
return dglv2->dg;
}
LV2_State_Status
dg_save(LV2_Handle instance,
LV2_State_Store_Function store,
LV2_State_Handle handle,
uint32_t flags,
const LV2_Feature *const * features)
{
DGLV2 *dglv2 = (DGLV2 *)instance;
printf("dg_save\n");
std::string config = dglv2->dg->configString();
printf("%s\n", config.c_str());
store(handle,
dglv2->urimap->uri_to_id(dglv2->urimap->callback_data,
NULL, NS_DG "config"),
config.c_str(),
config.length() + 1,
dglv2->urimap->uri_to_id(dglv2->urimap->callback_data,
NULL, NS_ATOM "chunk"),
LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
printf("dg_save\n");
return LV2_STATE_SUCCESS;
}
LV2_State_Status
dg_restore(LV2_Handle instance,
LV2_State_Retrieve_Function retrieve,
LV2_State_Handle handle,
uint32_t flags,
const LV2_Feature *const * features)
{
DGLV2 *dglv2 = (DGLV2 *)instance;
DEBUG(lv2, "dg_restore begin\n");
size_t size;
uint32_t type;
const char* data =
(const char*)retrieve(handle,
dglv2->urimap->uri_to_id(dglv2->urimap->callback_data,
NULL, NS_DG "config"),
&size, &type, &flags);
DEBUG(lv2, "Config string size: %d, data*: %p\n", (int)size, data);
if(data && size) {
std::string config;
config.append(data, size - 1);
dglv2->dg->setConfigString(config);
}
DEBUG(lv2, "dg_restore done\n");
return LV2_STATE_SUCCESS;
}
static LV2_State_Interface dg_persist = {
dg_save,
dg_restore
};
LV2_Handle instantiate(const struct _LV2_Descriptor *descriptor,
double sample_rate,
const char *bundle_path,
const LV2_Feature *const *features)
{
DGLV2 *dglv2 = new DGLV2;
dglv2->urimap = NULL;
for (int i = 0 ; features[i] ; i++) {
printf("DG: feature: %s\n", features[i]->URI);
if (!strcmp(features[i]->URI, LV2_URI_MAP_URI)) {
dglv2->urimap = (LV2_URI_Map_Feature*)features[i]->data;
}
if (!strcmp(features[i]->URI, LV2_STATE__makePath)) {
dglv2->makepath = (LV2_State_Make_Path*)features[i]->data;
}
}
dg_descriptor.get_pci = dg_get_pci;
dglv2->in = new InputLV2();
dglv2->out = new OutputLV2();
dglv2->buffer = NULL;
dglv2->buffer_size = 0;
dglv2->dg = new DrumGizmo(dglv2->out, dglv2->in);
dglv2->dg->setSamplerate(sample_rate);
return (LV2_Handle)dglv2;
}
void connect_port(LV2_Handle instance,
uint32_t port,
void *data_location)
{
DGLV2 *dglv2 = (DGLV2 *)instance;
if(port == 0) {
dglv2->in->eventPort = (LV2_Event_Buffer*)data_location;
} else {
if(port - 1 < NUM_OUTPUTS) {
dglv2->out->outputPorts[port - 1].samples = (sample_t*)data_location;
dglv2->out->outputPorts[port - 1].size = 0;
}
}
}
void activate(LV2_Handle instance)
{
DGLV2 *dglv2 = (DGLV2 *)instance;
(void)dglv2;
}
void run(LV2_Handle instance,
uint32_t sample_count)
{
static size_t pos = 0;
DGLV2 *dglv2 = (DGLV2 *)instance;
dglv2->dg->run(pos, dglv2->buffer, sample_count);
pos += sample_count;
}
void deactivate(LV2_Handle instance)
{
DGLV2 *dglv2 = (DGLV2 *)instance;
dglv2->dg->stop();
}
void cleanup(LV2_Handle instance)
{
DGLV2 *dglv2 = (DGLV2 *)instance;
delete dglv2->dg;
delete dglv2->in;
delete dglv2->out;
}
const void* extension_data(const char *uri)
{
printf("extension_data(%s)\n", uri);
if(!strcmp(uri, PLUGIN_INSTANCE_URI)) return &dg_descriptor;
if(!strcmp(uri, LV2_STATE__interface)) return &dg_persist;
return NULL;
}
extern "C" {
static const LV2_Descriptor descriptor = {
DRUMGIZMO_URI,
instantiate,
connect_port,
activate,
run,
deactivate,
cleanup,
extension_data
};
LV2_SYMBOL_EXPORT
const LV2_Descriptor* lv2_descriptor(uint32_t index)
{
switch (index) {
case 0:
return &descriptor;
default:
return NULL;
}
}
}
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