68 lines
2.4 KiB
Rust
68 lines
2.4 KiB
Rust
#[macro_use]
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mod util;
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mod context;
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mod descriptor;
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mod factory;
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mod wrapper;
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/// Re-export for the wrapper.
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pub use self::factory::Factory;
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pub use clap_sys::entry::clap_plugin_entry;
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pub use clap_sys::plugin_factory::CLAP_PLUGIN_FACTORY_ID;
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pub use clap_sys::version::CLAP_VERSION;
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pub use lazy_static::lazy_static;
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/// Export a CLAP plugin from this library using the provided plugin type.
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#[macro_export]
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macro_rules! nih_export_clap {
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($plugin_ty:ty) => {
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// We need a function pointer to a [wrapper::get_factory()] that creates a factory for `$plugin_ty`, so we need to generate the function inside of this macro
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#[doc(hidden)]
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mod clap {
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// Because `$plugin_ty` is likely defined in the enclosing scope
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use super::*;
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// We don't use generics inside of statics, so this lazy_static is used as kind of an
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// escape hatch
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::nih_plug::wrapper::clap::lazy_static! {
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static ref FACTORY: ::nih_plug::wrapper::clap::Factory<$plugin_ty> = ::nih_plug::wrapper::clap::Factory::default();
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}
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// We don't need any special initialization or deinitialization handling
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pub extern "C" fn init(_plugin_path: *const ::std::os::raw::c_char) -> bool {
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true
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}
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pub extern "C" fn deinit() {}
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pub extern "C" fn get_factory(
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factory_id: *const ::std::os::raw::c_char,
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) -> *const ::std::ffi::c_void {
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if !factory_id.is_null()
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&& unsafe { ::std::ffi::CStr::from_ptr(factory_id) }
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== unsafe {
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::std::ffi::CStr::from_ptr(
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::nih_plug::wrapper::clap::CLAP_PLUGIN_FACTORY_ID,
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)
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}
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{
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&(*FACTORY).clap_plugin_factory as *const _ as *const ::std::ffi::c_void
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} else {
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std::ptr::null()
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}
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}
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}
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#[no_mangle]
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#[used]
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pub static clap_entry: ::nih_plug::wrapper::clap::clap_plugin_entry =
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::nih_plug::wrapper::clap::clap_plugin_entry {
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clap_version: ::nih_plug::wrapper::clap::CLAP_VERSION,
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init: self::clap::init,
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deinit: self::clap::deinit,
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get_factory: self::clap::get_factory,
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};
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};
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}
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