Implement zmop fine-grain CC routing.

zynmidirouter.c

@@ -492,6 +492,9 @@ int zmop_init(int iz, char *name, uint32_t flags) {
 	for (i = 0; i < 16; i++) {
 		zmops[iz].last_pb_val[i] = 8192;
 	}
+	for (i = 0; i < 128; i++) {
+		zmops[iz].cc_route[i] = 0;
+	}
 
 	// Create direct output ring-buffer
 	if (flags & FLAG_ZMOP_DIRECTOUT) {
@@ -993,6 +996,41 @@ int zmop_reset_note_range_transpose(int iz) {
 	return 1;
 }
 
+// CC routing
+
+int zmop_reset_cc_route(int iz) {
+	if (iz < 0 || iz >= MAX_NUM_ZMOPS) {
+		fprintf(stderr, "ZynMidiRouter: Bad output port index (%d).\n", iz);
+		return 0;
+	}
+	for (int i = 0; i < 128; i++) {
+		zmops[iz].cc_route[i] = 0;
+	}
+	return 1;
+}
+
+int zmop_set_cc_route(int iz, uint8_t *cc_route) {
+	if (iz < 0 || iz >= MAX_NUM_ZMOPS) {
+		fprintf(stderr, "ZynMidiRouter: Bad output port index (%d).\n", iz);
+		return 0;
+	}
+	for (int i = 0; i < 128; i++) {
+		zmops[iz].cc_route[i] = cc_route[i];
+	}
+	return 1;
+}
+
+int zmop_get_cc_route(int iz, uint8_t *cc_route) {
+	if (iz < 0 || iz >= MAX_NUM_ZMOPS) {
+		fprintf(stderr, "ZynMidiRouter: Bad output port index (%d).\n", iz);
+		return 0;
+	}
+	for (int i = 0; i < 128; i++) {
+		cc_route[i] = zmops[iz].cc_route[i];
+	}
+	return 1;
+}
+
 //-----------------------------------------------------------------------------
 // Jack MIDI processing
 //-----------------------------------------------------------------------------
@@ -1381,7 +1419,7 @@ int jack_process(jack_nframes_t nframes, void *arg) {
 				}
 
 				// Drop "CC messages" if configured in zmop options, except from internal sources (UI, etc.)
-				if (event_type == CTRL_CHANGE && (zmop->flags & FLAG_ZMOP_DROPCC) && izmip <= ZMIP_CTRL)
+				if (event_type == CTRL_CHANGE && (zmop->flags & FLAG_ZMOP_DROPCC && zmop->cc_route[event_num] == 0) && izmip <= ZMIP_CTRL)
 					goto zmop_event_processed;
 
 				// Drop "Program Change" if configured in zmop options, except from internal sources (UI)

zynmidirouter.h

@@ -302,6 +302,7 @@ struct zmop_st {
 	int midi_chan;							// Single MIDI channel. -1 for using channel translation map.
 	int midi_chans[16];						// MIDI channel translation map (-1 to disable a MIDI channel)
 	int route_from_zmips[MAX_NUM_ZMIPS];	// Flags indicating which inputs to route to this output
+	uint8_t cc_route[128];					// CCs routed to output (0 = blocked, 1 = routed)
 	uint32_t flags;							// Bitwise flags influencing output behaviour
 	uint8_t note_low;						// Note range => Low note
 	uint8_t note_high;						// Note range => High note
@@ -365,6 +366,10 @@ int8_t zmop_get_transpose_semitone(int iz);
 int8_t get_global_transpose();
 int zmop_set_note_range_transpose(int iz, uint8_t nlow, uint8_t nhigh, int8_t trans_oct, int8_t trans_semi);
 int zmop_reset_note_range_transpose(int iz);
+// CC routing
+int zmop_reset_cc_route(int iz);
+int zmop_set_cc_route(int iz, uint8_t *cc_route);
+int zmop_get_cc_route(int iz, uint8_t *cc_route);
 // ----------------------------------------------------------------------------
 // This is called from jack process!!
 void zmop_push_event(struct zmop_st * zmop, jack_midi_event_t * ev); // Add event to MIDI output port