diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/emscripten_api.rs | 39 | ||||
-rw-r--r-- | src/lib.rs | 3 | ||||
-rw-r--r-- | src/transforms.rs | 16 |
3 files changed, 42 insertions, 16 deletions
diff --git a/src/emscripten_api.rs b/src/emscripten_api.rs new file mode 100644 index 0000000..ec6704e --- /dev/null +++ b/src/emscripten_api.rs @@ -0,0 +1,39 @@ +use transforms; + +#[no_mangle] +pub extern "C" fn find_fundamental_frequency(signal: *const f32, signal_length: isize, sample_rate: f32) -> f32 { + use std::slice; + let signal_slice = unsafe { + &slice::from_raw_parts(signal, signal_length as usize) + }; + + transforms::find_fundamental_frequency(&signal_slice, sample_rate).unwrap_or(0.0) +} + +#[no_mangle] +pub extern "C" fn correlation(signal: *const f32, signal_length: isize) { + //TODO correlate inline +} + +#[no_mangle] +pub extern "C" fn hz_to_cents_error(hz: f32) -> f32 { + //TODO implement + 0.0 +} + +use std::os::raw::c_char; +use std::ffi::CStr; +use std::ffi::CString; + +#[no_mangle] +pub extern "C" fn hz_to_pitch(hz: f32) -> *mut c_char { + //TODO implement + CString::new("C 4") + .unwrap() + .into_raw() +} + +#[no_mangle] +pub extern "C" fn align_to_rising_edge(signal: *const f32, signal_length: isize) { + //TODO format signal nicely inline +} @@ -11,3 +11,6 @@ pub mod gui; extern crate portaudio; #[cfg(not(target_os = "emscripten"))] pub mod audio; + +#[cfg(target_os = "emscripten")] +pub mod emscripten_api; diff --git a/src/transforms.rs b/src/transforms.rs index 656255b..55f81b6 100644 --- a/src/transforms.rs +++ b/src/transforms.rs @@ -236,19 +236,3 @@ pub fn align_to_rising_edge(samples: &[f32]) -> Vec<f32> { .cloned() .collect() } - - -#[cfg(target_os = "emscripten")] -pub mod emscripten_api { - #[no_mangle] - pub extern "C" fn find_fundamental_frequency(signal: *const f32, signal_length: isize, sample_rate: f32) -> f32 { - use std::slice; - let signal_slice = unsafe { - &slice::from_raw_parts(signal, signal_length as usize) - }; - - println!("Signal is {:?}", signal_slice); - println!("Sample rate is {:?}Hz", sample_rate); - super::find_fundamental_frequency(&signal_slice, sample_rate).unwrap_or(0.0) - } -} |