HexoDSP/src/nodes/mod.rs

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// Copyright (c) 2021 Weird Constructor <weirdconstructor@gmail.com>
// This is a part of HexoDSP. Released under (A)GPLv3 or any 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_INPUTS : usize = 32;
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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)
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// 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 node_prog;
mod node_exec;
mod node_conf;
mod drop_thread;
mod node_graph_ordering;
pub mod visual_sampling_filter;
mod feedback_filter;
pub(crate) use visual_sampling_filter::*;
pub use node_exec::*;
pub use node_prog::*;
pub use node_conf::*;
pub use feedback_filter::*;
pub use node_graph_ordering::NodeGraphOrdering;
pub use crate::monitor::MinMaxMonitorSamples;
use crate::monitor::MON_SIG_CNT;
use crate::dsp::{Node, SAtom};
#[derive(Debug)]
pub(crate) enum DropMsg {
Node { node: Node },
Prog { prog: NodeProg },
Atom { atom: SAtom },
}
/// Big messages for updating the NodeExecutor thread.
/// Usually used for shoveling NodeProg and Nodes to and from
/// the NodeExecutor thread.
#[derive(Debug)]
pub enum GraphMessage {
NewNode { index: u8, node: Node },
NewProg { prog: NodeProg, copy_old_out: bool },
Clear { prog: NodeProg },
}
/// Messages for small updates between the NodeExecutor thread
/// and the NodeConfigurator.
#[derive(Debug)]
pub enum QuickMessage {
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.
SetMonitor { bufs: [usize; MON_SIG_CNT], },
}
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)
}