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authorDavid Robillard <d@drobilla.net>2016-07-30 19:21:53 -0400
committerDavid Robillard <d@drobilla.net>2016-07-31 15:19:35 -0400
commit22bf425ab9d3724e8eb6961b945169c3dabd5b04 (patch)
tree916e21565b681d6c0517852623c27503143ff310 /plugins/eg-midigate.lv2/midigate.c
parent7f0ebf206c3654e66b1ad40450d54253f7bfd17f (diff)
downloadlv2-22bf425ab9d3724e8eb6961b945169c3dabd5b04.tar.xz
Clean up example plugin initialization
Diffstat (limited to 'plugins/eg-midigate.lv2/midigate.c')
-rw-r--r--plugins/eg-midigate.lv2/midigate.c36
1 files changed, 20 insertions, 16 deletions
diff --git a/plugins/eg-midigate.lv2/midigate.c b/plugins/eg-midigate.lv2/midigate.c
index 8d2bd74..aab668a 100644
--- a/plugins/eg-midigate.lv2/midigate.c
+++ b/plugins/eg-midigate.lv2/midigate.c
@@ -21,9 +21,11 @@
#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+#include "lv2/lv2plug.in/ns/ext/log/logger.h"
#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+#include "lv2/lv2plug.in/ns/lv2core/lv2_util.h"
#define MIDIGATE_URI "http://lv2plug.in/plugins/eg-midigate"
@@ -40,7 +42,8 @@ typedef struct {
float* out;
// Features
- LV2_URID_Map* map;
+ LV2_URID_Map* map;
+ LV2_Log_Logger logger;
struct {
LV2_URID midi_MidiEvent;
@@ -56,25 +59,26 @@ instantiate(const LV2_Descriptor* descriptor,
const char* bundle_path,
const LV2_Feature* const* features)
{
- /** Scan features array for the URID feature we need. */
- LV2_URID_Map* map = NULL;
- for (int i = 0; features[i]; ++i) {
- if (!strcmp(features[i]->URI, LV2_URID__map)) {
- map = (LV2_URID_Map*)features[i]->data;
- break;
- }
+ Midigate* self = (Midigate*)calloc(1, sizeof(Midigate));
+ if (!self) {
+ return NULL;
}
- if (!map) {
- /**
- No URID feature given. This is a host bug since we require this
- feature, but should be handled gracefully anyway.
- */
+
+ // Scan host features for URID map
+ const char* missing = lv2_features_query(
+ features,
+ LV2_LOG__log, &self->logger.log, false,
+ LV2_URID__map, &self->map, true,
+ NULL);
+ lv2_log_logger_set_map(&self->logger, self->map);
+ if (missing) {
+ lv2_log_error(&self->logger, "Missing feature <%s>\n", missing);
+ free(self);
return NULL;
}
- Midigate* self = (Midigate*)calloc(1, sizeof(Midigate));
- self->map = map;
- self->uris.midi_MidiEvent = map->map(map->handle, LV2_MIDI__MidiEvent);
+ self->uris.midi_MidiEvent = self->map->map(
+ self->map->handle, LV2_MIDI__MidiEvent);
return (LV2_Handle)self;
}