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lv2 messaging: some breaking progress

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This commit is contained in:
Paolo Marrone 2025-06-12 13:34:17 +02:00
parent 622b2ba169
commit 996e32f74d
1 changed files with 24 additions and 14 deletions
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32
templates/lv2/src/lv2.c
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@ -403,7 +403,7 @@ static void activate(LV2_Handle instance) {
static void run(LV2_Handle instance, uint32_t sample_count) {
plugin_instance * i = (plugin_instance *)instance;
if (0 && i->control) {
if (i->control) {
const LV2_Atom_Event* ev = lv2_atom_sequence_begin(&(i->control)->body);
while (!lv2_atom_sequence_is_end(&i->control->body, i->control->atom.size, ev)) {
if (lv2_atom_forge_is_object_type(&i->forge, ev->body.type)) {
@ -634,7 +634,9 @@ typedef struct {
# ifdef DATA_MESSAGING
LV2_URID_Map* map;
LV2_Atom_Forge forge;
LV2_Atom_Forge_Frame frame;
communication_URIs c_uris;
uint8_t obj_buf[DATA_MESSAGING_MAX];
# endif
} ui_instance;
@ -682,23 +684,31 @@ static char send_to_dsp (void *handle, const void *data, size_t bytes) {
return 1;
}
uint8_t obj_buf[256];
lv2_atom_forge_set_buffer(&instance->forge, obj_buf, sizeof(obj_buf));
LV2_Atom_Forge_Frame frame;
lv2_atom_forge_set_buffer(&instance->forge, instance->obj_buf, sizeof(instance->obj_buf));
lv2_atom_forge_sequence_head(&instance->forge, &instance->frame, 0);
// Start forging an object
LV2_Atom* msg = (LV2_Atom*)lv2_atom_forge_object(&instance->forge, &frame, 0, instance->c_uris.ui_On);
lv2_atom_forge_frame_time(&instance->forge, 0);
LV2_Atom* msg = (LV2_Atom*) lv2_atom_forge_object(&instance->forge, &instance->frame, 0, instance->c_uris.prop_customMessage);
lv2_atom_forge_key(&instance->forge, instance->c_uris.length);
lv2_atom_forge_int(&instance->forge, (int32_t)bytes);
lv2_atom_forge_key(&instance->forge, instance->c_uris.prop_customMessage);
lv2_atom_forge_write(&instance->forge, data, bytes);
lv2_atom_forge_pop(&instance->forge, &instance->frame);
/*
LV2_Atom* msg = (LV2_Atom*)lv2_atom_forge_object(&instance->forge, &instance->frame, 0, instance->c_uris.ui_On);
assert(msg);
// Add a string property to the object
lv2_atom_forge_key(&instance->forge, instance->c_uris.prop_customMessage);
lv2_atom_forge_string(&instance->forge, data, bytes);
// Finish the object
lv2_atom_forge_pop(&instance->forge, &frame);
*/
// Send the forged atom to the host
instance->write(instance->controller, 8, lv2_atom_total_size(msg), instance->c_uris.atom_eventTransfer, msg);
instance->write(instance->controller, DATA_MESSAGING_PORT_IN, lv2_atom_total_size(msg), instance->c_uris.atom_eventTransfer, msg);
return 0;
}