wip: lv2 support?

Cargo.lock

@@ -260,7 +260,7 @@ dependencies = [
  "crossterm_winapi",
  "libc",
  "mio",
- "parking_lot",
+ "parking_lot 0.12.2",
  "signal-hook",
  "signal-hook-mio",
  "winapi",
@@ -325,6 +325,15 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "instant"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0242819d153cba4b4b05a5a8f2a7e9bbf97b6055b2a002b395c96b5ff3c0222"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "is_terminal_polyfill"
 version = "1.70.0"
@@ -394,6 +403,40 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "lilv"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba8b5b9e4cc7a3f588377578868738c997eec13045ce31d727735181e425327a"
+dependencies = [
+ "lilv-sys",
+ "lv2_raw",
+ "parking_lot 0.11.2",
+ "pkg-config",
+]
+
+[[package]]
+name = "lilv-sys"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aee56a6fdb8db62d01819f171d579c65fb0e03bcd077e1ea4509e06b6d58f53c"
+dependencies = [
+ "lv2_raw",
+]
+
+[[package]]
+name = "livi"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3a0c5cce0462040d482a75d2b3a7a4fa5593e9a2a4937167e1880ce6d941e43"
+dependencies = [
+ "lilv",
+ "log",
+ "lv2-sys",
+ "lv2_raw",
+ "ringbuf",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.4.12"
@@ -419,6 +462,21 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "lv2-sys"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9dd0f9e7de3649dcec348de51cbf611ab88688b97c0ce038f8c07b996b2a8e30"
+
+[[package]]
+name = "lv2_raw"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "573ce7231f64fe795ad80134913f88f2e7f7f550527f6bd54d690a56cabf6a48"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memchr"
 version = "2.7.2"
@@ -506,6 +564,17 @@ version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
+name = "parking_lot"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99"
+dependencies = [
+ "instant",
+ "lock_api",
+ "parking_lot_core 0.8.6",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.12.2"
@@ -513,7 +582,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7e4af0ca4f6caed20e900d564c242b8e5d4903fdacf31d3daf527b66fe6f42fb"
 dependencies = [
  "lock_api",
- "parking_lot_core",
+ "parking_lot_core 0.9.10",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60a2cfe6f0ad2bfc16aefa463b497d5c7a5ecd44a23efa72aa342d90177356dc"
+dependencies = [
+ "cfg-if",
+ "instant",
+ "libc",
+ "redox_syscall 0.2.16",
+ "smallvec",
+ "winapi",
 ]
 
 [[package]]
@@ -524,7 +607,7 @@ checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
 dependencies = [
  "cfg-if",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.5.1",
  "smallvec",
  "windows-targets 0.52.5",
 ]
@@ -609,6 +692,15 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
+dependencies = [
+ "bitflags 1.3.2",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.5.1"
@@ -618,6 +710,15 @@ dependencies = [
  "bitflags 2.5.0",
 ]
 
+[[package]]
+name = "ringbuf"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79abed428d1fd2a128201cec72c5f6938e2da607c6f3745f769fabea399d950a"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.24"
@@ -782,6 +883,7 @@ dependencies = [
  "clap",
  "crossterm",
  "jack",
+ "livi",
  "microxdg",
  "midly",
  "ratatui",

Cargo.toml

@@ -15,3 +15,4 @@ midly = "0.5"
 
 vst = "0.4.0"
 #vst3 = "0.1.0"
+livi = "0.7.4"

shell.nix

@@ -4,5 +4,10 @@
   ];
   buildInputs = with pkgs; [
     jack2
+    lilv
+    serd
+    libclang
   ];
+  VST3_SDK_DIR = "/home/user/Lab/Music/tek/vst3sdk/";
+  LIBCLANG_PATH = "${pkgs.libclang.lib.outPath}/lib";
 }

src/device/plugin.rs

@@ -1,8 +1,18 @@
 use crate::prelude::*;
 
+mod lv2;
+mod vst2;
+mod vst3;
+
 pub struct Plugin {
     name:   String,
-    plugin: Option<::vst::host::PluginInstance>
+    plugin: Option<PluginKind>
+}
+
+enum PluginKind {
+    VST2(::vst::host::PluginInstance),
+    VST3,
+    LV2(::livi::Plugin),
 }
 
 impl Plugin {
@@ -11,12 +21,9 @@ impl Plugin {
             name: name.into(),
             plugin: None,
         });
-        let mut loader = ::vst::host::PluginLoader::load(
+        device.state.lock().unwrap().plugin = Some(self::lv2::plug_in(
-            &std::path::Path::new("/nix/store/ij3sz7nqg5l7v2dygdvzy3w6cj62bd6r-helm-0.9.0/lib/lxvst/helm.so"),
+            "file:///nix/store/ij3sz7nqg5l7v2dygdvzy3w6cj62bd6r-helm-0.9.0/lib/lv2/helm.lv2"
-            device.state.clone()
+        )?);
-        )?;
-        let plugin = loader.instance()?;
-        device.state.lock().unwrap().plugin = Some(plugin);
         Ok(device)
     }
 }

src/device/plugin/lv2.rs

@@ -0,0 +1,17 @@
+use crate::prelude::*;
+use super::*;
+
+pub fn plug_in (path: &str) -> Usually<PluginKind> {
+    let world = ::livi::World::with_load_bundle(&path);
+    world.build_features(::livi::FeaturesBuilder {
+        min_block_length: 1,
+        max_block_length: 65536,
+    });
+    let mut plugin = None;
+    for p in world.iter_plugins() {
+        plugin = Some(p);
+        break
+    }
+    let result = PluginKind::LV2(plugin.unwrap());
+    Ok(result)
+}

src/device/plugin/vst2.rs

@@ -0,0 +1,11 @@
+use crate::prelude::*;
+use super::*;
+
+fn set_vst_plugin (host: &Arc<Mutex<Plugin>>, path: &str) -> Usually<PluginKind> {
+    let mut loader = ::vst::host::PluginLoader::load(
+        &std::path::Path::new("/nix/store/ij3sz7nqg5l7v2dygdvzy3w6cj62bd6r-helm-0.9.0/lib/lxvst/helm.so"),
+        host.clone()
+    )?;
+    Ok(PluginKind::VST2(loader.instance()?))
+}
+            //"file:///nix/store/ij3sz7nqg5l7v2dygdvzy3w6cj62bd6r-helm-0.9.0/lib/lxvst/helm.so"