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authorBent Bisballe Nyeng <deva@aasimon.org>2012-01-23 20:37:57 +0100
committerBent Bisballe Nyeng <deva@aasimon.org>2012-01-23 20:37:57 +0100
commit8cd3f1729a417d933744cf64e2adf78dc07e265c (patch)
tree8d677dced9b5efcb670dd3b04d7426a56e1ff96d /lv2/lv2.cc
parent4a4d0a84bb1b80555052f59c1a4addc870ce5fda (diff)
Make plugin store its state. Connect state and GUI (and use GUI)
Diffstat (limited to 'lv2/lv2.cc')
-rw-r--r--lv2/lv2.cc114
1 files changed, 99 insertions, 15 deletions
diff --git a/lv2/lv2.cc b/lv2/lv2.cc
index 346b0dc..3fdd7e1 100644
--- a/lv2/lv2.cc
+++ b/lv2/lv2.cc
@@ -28,20 +28,82 @@
#include <stdlib.h>
-#include <drumgizmo.h>
+#include "lv2_gui.h"
+#include "lv2_state.h"
-#include "input_lv2.h"
-#include "output_lv2.h"
+#include "lv2_instance.h"
#define MIDI_EVENT_URI "http://lv2plug.in/ns/ext/midi#MidiEvent"
-typedef struct {
- InputLV2 *in;
- OutputLV2 *out;
- DrumGizmo *dg;
- sample_t *buffer;
- size_t buffer_size;
-} DGLV2;
+#define NS_ATOM "http://lv2plug.in/ns/ext/atom#"
+#define NS_DG "http://drumgizmo.org/lv2/atom#"
+
+/*
+ * Stuff to handle DrumGizmo* transmission from instance to GUI.
+ */
+static LV2_DrumGizmo_Descriptor dg_descriptor;
+
+static DrumGizmo *dg_get_pci(LV2_Handle instance)
+{
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+ return dglv2->dg;
+}
+
+
+/*
+ * Stuff to save/restore plugin state.
+ */
+void dg_save(LV2_Handle instance,
+ LV2_State_Store_Function store,
+ void* callback_data,
+ 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(callback_data,
+ dglv2->urimap->uri_to_id(dglv2->urimap->callback_data,
+ NULL, NS_DG "config"),
+ config.data(), config.length(),
+ dglv2->urimap->uri_to_id(dglv2->urimap->callback_data,
+ NULL, NS_ATOM "String"),
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+}
+
+void dg_restore(LV2_Handle instance,
+ LV2_State_Retrieve_Function retrieve,
+ void* callback_data,
+ uint32_t flags,
+ const LV2_Feature *const * features)
+{
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+ printf("dg_restore\n");
+
+ size_t size;
+ uint32_t type;
+ // uint32_t flags;
+
+ const char* data =
+ (const char*)retrieve(callback_data,
+ dglv2->urimap->uri_to_id(dglv2->urimap->callback_data,
+ NULL, NS_DG "config"),
+ &size, &type, &flags);
+ std::string config;
+ config.append(data, size);
+ dglv2->dg->setConfigString(config);
+
+ dglv2->in->loadMidiMap(dglv2->dg->midimapfile);
+}
+
+
+static LV2_State_Interface dg_persist = {
+ dg_save,
+ dg_restore
+};
/** A globally unique, case-sensitive identifier for this plugin type.
*
@@ -86,6 +148,16 @@ LV2_Handle instantiate(const struct _LV2_Descriptor *descriptor,
{
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;
+ }
+ }
+
+ dg_descriptor.get_pci = dg_get_pci;
+
dglv2->in = new InputLV2();
dglv2->out = new OutputLV2();
@@ -93,8 +165,8 @@ LV2_Handle instantiate(const struct _LV2_Descriptor *descriptor,
dglv2->buffer_size = 0;
dglv2->dg = new DrumGizmo(dglv2->out, dglv2->in);
- dglv2->dg->loadkit(getenv("DRUMGIZMO_DRUMKIT"));
- dglv2->dg->init(true);
+ // dglv2->dg->loadkit(getenv("DRUMGIZMO_DRUMKIT"));
+ // dglv2->dg->init(true);
return (LV2_Handle)dglv2;
}
@@ -143,8 +215,10 @@ void connect_port(LV2_Handle instance,
if(port == 0) {// MIDI in
dglv2->in->eventPort = (LV2_Event_Buffer*)data_location;
} else {// Audio Port
- if(port - 1 < NUM_OUTPUTS)
- dglv2->out->outputPort[port - 1] = (sample_t*)data_location;
+ if(port - 1 < NUM_OUTPUTS) {
+ dglv2->out->outputPorts[port - 1].samples = (sample_t*)data_location;
+ dglv2->out->outputPorts[port - 1].size = 0;
+ }
}
}
@@ -197,13 +271,17 @@ void run(LV2_Handle instance,
static size_t pos = 0;
DGLV2 *dglv2 = (DGLV2 *)instance;
+ // The buffer is not used anymore - declared NULL in 'instantiate'.
+ /*
if(dglv2->buffer_size != sample_count) {
if(dglv2->buffer) free(dglv2->buffer);
dglv2->buffer_size = sample_count;
dglv2->buffer = (sample_t*)malloc(sizeof(sample_t) * dglv2->buffer_size);
+ printf("(Re)allocate buffer: %d samples\n", dglv2->buffer_size);
}
+ */
- dglv2->dg->run(pos, dglv2->buffer, dglv2->buffer_size);
+ dglv2->dg->run(pos, dglv2->buffer, sample_count);
pos += sample_count;
}
@@ -272,6 +350,12 @@ void cleanup(LV2_Handle instance)
* for extensibility anyway). */
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, "http://lv2plug.in/ns/ext/state#Interface")) {
+ return &dg_persist;
+ }
return NULL;
}