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use crate::dsp::{Node, ProcBuf, SAtom};
use std::cell::RefCell;
use triple_buffer::{Input, Output, TripleBuffer};
thread_local! {
pub static NODE_PROG_ID_COUNTER: RefCell<usize> = RefCell::new(1);
}
#[derive(Debug, Clone)]
pub struct ModOp {
amount: f32,
modbuf: ProcBuf,
outbuf: ProcBuf,
inbuf: ProcBuf,
}
impl Drop for ModOp {
fn drop(&mut self) {
self.modbuf.free();
}
}
impl ModOp {
pub fn new() -> Self {
Self {
amount: 0.0,
modbuf: ProcBuf::new(),
outbuf: ProcBuf::null(),
inbuf: ProcBuf::null(),
}
}
pub fn set_amt(&mut self, amt: f32) {
self.amount = amt;
}
pub fn lock(&mut self, inbuf: ProcBuf, outbuf: ProcBuf) -> ProcBuf {
self.inbuf = inbuf;
self.outbuf = outbuf;
self.modbuf
}
pub fn unlock(&mut self) {
self.outbuf = ProcBuf::null();
self.inbuf = ProcBuf::null();
}
#[inline]
pub fn process(&mut self, nframes: usize) {
let modbuf = &mut self.modbuf;
let inbuf = &mut self.inbuf;
let outbuf = &mut self.outbuf;
if inbuf.is_null() {
return;
}
for frame in 0..nframes {
modbuf.write(frame, inbuf.read(frame) + (self.amount * outbuf.read(frame)));
}
}
}
#[derive(Debug, Clone)]
pub struct NodeOp {
pub idx: u8,
pub node: Node,
pub out_idxlen: (usize, usize),
pub in_idxlen: (usize, usize),
pub at_idxlen: (usize, usize),
pub mod_idxlen: (usize, usize),
pub inputs: Vec<(usize, usize, Option<usize>)>,
pub in_connected: u64,
pub out_connected: u64,
}
impl NodeOp {
pub fn in_idx_belongs_to_nodeop(&self, idx: usize) -> bool {
idx >= self.in_idxlen.0 && idx < self.in_idxlen.1
}
pub fn set_in_idx_connected_flag(&mut self, global_idx: usize) {
if !self.in_idx_belongs_to_nodeop(global_idx) {
return;
}
let local_idx = global_idx - self.in_idxlen.0;
self.in_connected |= 0x1 << local_idx;
}
pub fn out_idx_belongs_to_nodeop(&self, idx: usize) -> bool {
idx >= self.out_idxlen.0 && idx < self.out_idxlen.1
}
pub fn set_out_idx_connected_flag(&mut self, global_idx: usize) {
if !self.out_idx_belongs_to_nodeop(global_idx) {
return;
}
let local_idx = global_idx - self.out_idxlen.0;
self.out_connected |= 0x1 << local_idx;
}
}
impl std::fmt::Display for NodeOp {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(
f,
"Op(i={} out=({}-{}|{:x}) in=({}-{}|{:x}) at=({}-{}) mod=({}-{})",
self.idx,
self.out_idxlen.0,
self.out_idxlen.1,
self.out_connected,
self.in_idxlen.0,
self.in_idxlen.1,
self.in_connected,
self.at_idxlen.0,
self.at_idxlen.1,
self.mod_idxlen.0,
self.mod_idxlen.1
)?;
for i in self.inputs.iter() {
write!(f, " cpy=(o{} => i{})", i.0, i.1)?;
}
for i in self.inputs.iter() {
if let Some(idx) = i.2 {
write!(f, " mod={}", idx)?;
}
}
write!(f, ")")
}
}
#[derive(Debug)]
pub struct NodeProg {
pub inp: Vec<ProcBuf>,
pub cur_inp: Vec<ProcBuf>,
pub out: Vec<ProcBuf>,
pub params: Vec<f32>,
pub atoms: Vec<SAtom>,
pub prog: Vec<NodeOp>,
pub modops: Vec<ModOp>,
pub locked_buffers: bool,
pub out_feedback: Input<Vec<f32>>,
pub out_fb_cons: Option<Output<Vec<f32>>>,
pub unique_id: usize,
}
impl Drop for NodeProg {
fn drop(&mut self) {
for buf in self.inp.iter_mut() {
buf.free();
}
for buf in self.out.iter_mut() {
buf.free();
}
}
}
fn new_node_prog_id() -> usize {
NODE_PROG_ID_COUNTER.with(|cnt| {
let unique_id = *cnt.borrow();
*cnt.borrow_mut() += 1;
unique_id
})
}
impl NodeProg {
pub fn empty() -> Self {
let out_fb = vec![];
let tb = TripleBuffer::new(out_fb);
let (input_fb, output_fb) = tb.split();
Self {
out: vec![],
inp: vec![],
cur_inp: vec![],
params: vec![],
atoms: vec![],
prog: vec![],
modops: vec![],
out_feedback: input_fb,
out_fb_cons: Some(output_fb),
locked_buffers: false,
unique_id: new_node_prog_id(),
}
}
pub fn new(out_len: usize, inp_len: usize, at_len: usize, mod_len: usize) -> Self {
let mut out = vec![];
out.resize_with(out_len, ProcBuf::new);
let out_fb = vec![0.0; out_len];
let tb = TripleBuffer::new(out_fb);
let (input_fb, output_fb) = tb.split();
let mut inp = vec![];
inp.resize_with(inp_len, ProcBuf::new);
let mut cur_inp = vec![];
cur_inp.resize_with(inp_len, ProcBuf::null);
let mut params = vec![];
params.resize(inp_len, 0.0);
let mut atoms = vec![];
atoms.resize(at_len, SAtom::setting(0));
let mut modops = vec![];
modops.resize_with(mod_len, ModOp::new);
Self {
out,
inp,
cur_inp,
params,
atoms,
modops,
prog: vec![],
out_feedback: input_fb,
out_fb_cons: Some(output_fb),
locked_buffers: false,
unique_id: new_node_prog_id(),
}
}
pub fn take_feedback_consumer(&mut self) -> Option<Output<Vec<f32>>> {
self.out_fb_cons.take()
}
pub fn params_mut(&mut self) -> &mut [f32] {
&mut self.params
}
pub fn atoms_mut(&mut self) -> &mut [SAtom] {
&mut self.atoms
}
pub fn modops_mut(&mut self) -> &mut [ModOp] {
&mut self.modops
}
pub fn append_op(&mut self, mut node_op: NodeOp) {
for n_op in self.prog.iter_mut() {
if n_op.idx == node_op.idx {
return;
}
}
node_op.out_connected = 0x0;
node_op.in_connected = 0x0;
self.prog.push(node_op);
}
pub fn append_edge(
&mut self,
node_op: NodeOp,
inp_index: usize,
out_index: usize,
mod_index: Option<usize>,
) {
for n_op in self.prog.iter_mut() {
if n_op.out_idx_belongs_to_nodeop(out_index) {
n_op.set_out_idx_connected_flag(out_index);
}
}
for n_op in self.prog.iter_mut() {
if n_op.idx == node_op.idx {
n_op.set_in_idx_connected_flag(inp_index);
n_op.inputs.push((out_index, inp_index, mod_index));
return;
}
}
}
pub fn initialize_input_buffers(&mut self) {
for param_idx in 0..self.params.len() {
let param_val = self.params[param_idx];
self.inp[param_idx].fill(param_val);
}
}
pub fn swap_previous_outputs(&mut self, prev_prog: &mut NodeProg) {
if self.locked_buffers {
self.unlock_buffers();
}
if prev_prog.locked_buffers {
prev_prog.unlock_buffers();
}
for (old_inp_pb, new_inp_pb) in prev_prog.inp.iter_mut().zip(self.inp.iter_mut()) {
std::mem::swap(old_inp_pb, new_inp_pb);
}
}
pub fn unlock_buffers(&mut self) {
for buf in self.cur_inp.iter_mut() {
*buf = ProcBuf::null();
}
for modop in self.modops.iter_mut() {
modop.unlock();
}
self.locked_buffers = false;
}
pub fn assign_outputs(&mut self) {
for op in self.prog.iter() {
let input_bufs = &mut self.cur_inp;
let out_bufs = &mut self.out;
let inp = op.in_idxlen;
input_bufs[inp.0..inp.1].copy_from_slice(&self.inp[inp.0..inp.1]);
for io in op.inputs.iter() {
input_bufs[io.1] = out_bufs[io.0];
if let Some(idx) = io.2 {
input_bufs[io.1] = self.modops[idx].lock(self.inp[io.1], out_bufs[io.0]);
}
}
}
self.locked_buffers = true;
}
}