finalized optimization of inactive nodes

mysynths/epiano.py

@@ -74,7 +74,7 @@ gamma = []
 for o in octaves:
 	for n in notes:
 		gamma.append(n+o)
-s.setup(s.sec(len(gamma)+2))
+s.setup(s.sec(60))
 
 for i in range(0, len(gamma)):
 	note = gamma[i]

zigsonnum/sonnum.zig

@@ -16,6 +16,60 @@ pub fn singleSineTick(st: *SoundSettings, freq: f64, t: u32, phase: f64) f64 {
 	return math.sin(st.sine_multiplier * freq * ft - phase * utility.tau);
 }
 
+pub fn returnSoundNodeToList(snlist: *ArrayList(*SoundNode), sn: *SoundNode) !void {
+	
+	for (snlist.items, 0..) |soundnode, ind| {
+		
+		if (sn.uid < soundnode.uid) {
+			try snlist.insert(ind, sn);
+			return;
+		}
+
+	}
+	
+	try snlist.append(sn);
+	return;
+	
+}
+
+pub fn removeSoundNodeFromList(snlist: *ArrayList(*SoundNode), sn: *SoundNode) u8 {
+
+	var found: u8 = 0;
+	var toremove: usize = 0;
+
+	for (snlist.items, 0..) |soundnode, ind| {
+		
+		if (sn.uid == soundnode.uid) {
+			toremove = ind;
+			found = 1;
+		}
+	
+	}
+
+	if (found == 1) {
+		_ = snlist.orderedRemove(toremove);
+	}
+
+	return found;
+	
+}
+
+pub fn reactivateSoundNode(alist: *ArrayList(*SoundNode), plist: *ArrayList(*SoundNode), sn: *SoundNode) !void {
+
+	const remove_success = removeSoundNodeFromList(plist, sn);
+	_ = remove_success;
+	try returnSoundNodeToList(alist, sn);
+	
+}
+
+pub fn deactivateSoundNode(alist: *ArrayList(*SoundNode), plist: *ArrayList(*SoundNode), sn: *SoundNode) !void {
+
+	const remove_success = removeSoundNodeFromList(alist, sn);
+	_ = remove_success;
+	try plist.append(sn);
+	
+}
+
 pub fn main() !void {
 
 	const allocator = std.heap.c_allocator;
@@ -27,6 +81,11 @@ pub fn main() !void {
 	var soundnodes = ArrayList(*SoundNode).init(allocator);
 	defer soundnodes.deinit();
 			
+	var a_soundnodes = ArrayList(*SoundNode).init(allocator);
+	defer a_soundnodes.deinit();
+	var p_soundnodes = ArrayList(*SoundNode).init(allocator);
+	defer p_soundnodes.deinit();
+	
 	// Determining length of resulting audio in ticks
 	const start_tick: u32 = 0;
 	var end_tick: u32 = 44100 * 10;	
@@ -159,9 +218,11 @@ pub fn main() !void {
 						0 => {
 							const nodename = try std.fmt.allocPrint(allocator, "{d}", .{src_node});
 	
-							const sn = try SoundNode.create(allocator, nodename);
+							const uid: usize = @as(usize, src_node);
+							const sn = try SoundNode.create(allocator, nodename, uid);
 							//print("Added node {s} at tick {d}\n", .{nodename, tick});
 							try soundnodes.append(sn);
+							try p_soundnodes.append(sn);
 							
 							try sn.s("basefreq", @as(f64, 440));
 							try sn.s("gain", @as(f64, 1));
@@ -206,8 +267,9 @@ pub fn main() !void {
 							//print("Set activity {d} for node {d} s at tick {d}\n", .{opcode, src_node, tick});
 							try src.activities.append(a);
 							
-							if (src.activities.items.len == 1) {
+							if (src.activities.items.len == 1 and src.active == 0) {
 								src.active = 1;
+								try reactivateSoundNode(&a_soundnodes, &p_soundnodes, src);
 							}
 							
 						},
@@ -224,33 +286,34 @@ pub fn main() !void {
 	
 		for (soundnodes.items[2..], 0..) |soundnode, i| {
 			
-			if (soundnode.active == 1) {
+			var toremove = ArrayList(usize).init(allocator);
+			defer toremove.deinit();
 				
-				var toremove = ArrayList(usize).init(allocator);
-				defer toremove.deinit();
-					
-				for (soundnode.activities.items, 0..) |activity, j| {
-									
-					if (tick <= activity.end_tick and tick >= activity.start_tick) {
-						try activity.do();
-					} else if (tick >= activity.end_tick) {
-						try toremove.append(j);
-					}
+			for (soundnode.activities.items, 0..) |activity, j| {
+								
+				if (tick <= activity.end_tick and tick >= activity.start_tick) {
+					try activity.do();
+				} else if (tick >= activity.end_tick) {
+					try toremove.append(j);
 				}
-			
-				var j: usize = toremove.items.len;
-				
-				while (j > 0) {
-					j -= 1;
-					const activity_ind = toremove.items[j];				
-					_ = soundnode.activities.swapRemove(activity_ind);
-					if (soundnode.activities.items.len == 0) {
-						soundnode.active = 0;
-					}
-				}
-			
 			}
 		
+			var j: usize = toremove.items.len;
+			
+			while (j > 0) {
+				j -= 1;
+				const activity_ind = toremove.items[j];		
+						
+				_ = soundnode.activities.swapRemove(activity_ind);
+				
+				if (soundnode.activities.items.len == 0 and soundnode.active == 1) {
+					
+					soundnode.active = 0;
+					try deactivateSoundNode(&a_soundnodes, &p_soundnodes, soundnode);
+					
+				}
+			}
+				
 			soundnode.fab.increment_tick();
 			_ = i;
 		}

zigsonnum/soundnode.zig

@@ -23,6 +23,7 @@ pub const SoundNode = struct {
 	allocator: Allocator,
 	
 	name: []const u8 = "soundnode",
+	uid: usize = 0,
 	
 	air_in: ArrayList(*SoundNode),
 	wire_in: ArrayList(*SoundNode),
@@ -40,7 +41,7 @@ pub const SoundNode = struct {
 	fab: FreqAmpBuffer,
 	active: u8 = 1,
 	
-	pub fn create(allocator: Allocator, name: []const u8) !*SoundNode {
+	pub fn create(allocator: Allocator, name: []const u8, uid: usize) !*SoundNode {
 	
 		const air_in = ArrayList(*SoundNode).init(allocator);
 		const wire_in = ArrayList(*SoundNode).init(allocator);
@@ -53,6 +54,7 @@ pub const SoundNode = struct {
 		const sn = try allocator.create(SoundNode);
 		
 		sn.* = .{
+			.uid = uid,
 			.allocator = allocator,
 			.name = name,
 			.air_in = air_in,

zigsonnum/utility.zig

@@ -10,4 +10,5 @@ pub fn prnt(s: []const u8) void {
 
 pub fn interpolate(x: f64, x0: f64, x1: f64, y0: f64, y1: f64) f64 {
 	return y0 + ((y1-y0)*(x-x0) / (x1-x0));
-}
+}
+