HexoDSP/src/nodes/mod.rs

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// Copyright (c) 2021 Weird Constructor <weirdconstructor@gmail.com>
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// This file is a part of HexoDSP. Released under GPL-3.0-or-later.
// See README.md and COPYING for details.
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pub const MAX_ALLOCATED_NODES: usize = 256;
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pub const MAX_SCOPES: usize = 8;
pub const SCOPE_SAMPLES: usize = 512;
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pub const MAX_INPUTS: usize = 32;
pub const MAX_SMOOTHERS: usize = 36 + 4; // 6 * 6 modulator inputs + 4 UI Knobs
pub const MAX_AVAIL_TRACKERS: usize = 128;
pub const MAX_FB_DELAYS: usize = 256; // 256 feedback delays, thats roughly 1.2MB RAM
pub const FB_DELAY_TIME_US: usize = 3140; // 3.14ms (should be enough for MAX_BLOCK_SIZE)
// This means, until 384000 sample rate the times are accurate.
pub const MAX_FB_DELAY_SRATE: usize = 48000 * 8;
pub const MAX_FB_DELAY_SIZE: usize = (MAX_FB_DELAY_SRATE * FB_DELAY_TIME_US) / 1000000;
mod drop_thread;
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mod feedback_filter;
mod node_conf;
mod node_exec;
mod node_graph_ordering;
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mod node_prog;
pub mod visual_sampling_filter;
pub(crate) use visual_sampling_filter::*;
pub use feedback_filter::*;
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pub use node_conf::*;
pub use node_exec::*;
pub use node_graph_ordering::NodeGraphOrdering;
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pub use node_prog::*;
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use crate::dsp::{Node, SAtom};
pub use crate::monitor::MinMaxMonitorSamples;
use crate::monitor::MON_SIG_CNT;
#[derive(Debug)]
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#[allow(dead_code)]
pub(crate) enum DropMsg {
Node { node: Node },
Prog { prog: NodeProg },
Atom { atom: SAtom },
}
/// Messages for updating the NodeExecutor thread.
/// Usually used for shoveling NodeProg and Nodes to and from
/// the NodeExecutor thread. And also parameter updates of course.
#[derive(Debug)]
pub enum GraphMessage {
NewNode {
index: u8,
node: Node,
},
NewProg {
prog: NodeProg,
copy_old_out: bool,
},
Clear {
prog: NodeProg,
},
// XXX: Parameter updates used to be separate from the graph update, but this
// became a race condition and I had to revert this premature optimization.
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AtomUpdate {
at_idx: usize,
value: SAtom,
},
ParamUpdate {
input_idx: usize,
value: f32,
},
ModamtUpdate {
mod_idx: usize,
modamt: f32,
},
/// Sets the buffer indices to monitor with the FeedbackProcessor.
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SetMonitor {
bufs: [usize; MON_SIG_CNT],
},
}
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pub const UNUSED_MONITOR_IDX: usize = 99999;
/// Creates a NodeConfigurator and a NodeExecutor which are interconnected
/// by ring buffers.
pub fn new_node_engine() -> (NodeConfigurator, NodeExecutor) {
let (nc, shared_exec) = NodeConfigurator::new();
let ne = NodeExecutor::new(shared_exec);
// XXX: This is one of the earliest and most consistent points
// in runtime to do this kind of initialization:
crate::dsp::helpers::init_cos_tab();
(nc, ne)
}