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mod.rs - source

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use super::core::{
    af_array, dim_t, AfError, Array, ConvGradientType, Dim4, HasAfEnum, RealFloating, HANDLE_ERROR,
};

use libc::{c_int, c_uint};

extern "C" {
    fn af_convolve2_nn(
        out: *mut af_array,
        signal: af_array,
        filter: af_array,
        stride_dims: c_uint,
        strides: *const dim_t,
        padding_dim: c_uint,
        paddings: *const dim_t,
        dilation_dim: c_uint,
        dilations: *const dim_t,
    ) -> c_int;

    fn af_convolve2_gradient_nn(
        out: *mut af_array,
        incoming_gradient: af_array,
        original_signal: af_array,
        original_filter: af_array,
        convolved_output: af_array,
        stride_dims: c_uint,
        strides: *const dim_t,
        padding_dims: c_uint,
        paddings: *const dim_t,
        dilation_dims: c_uint,
        dilations: *const dim_t,
        grad_type: c_uint,
    ) -> c_int;
}




























pub fn convolve2_nn<T>(
    signal: &Array<T>,
    filter: &Array<T>,
    strides: Dim4,
    padding: Dim4,
    dilation: Dim4,
) -> Array<T>
where
    T: HasAfEnum + RealFloating,
{
    unsafe {
        let mut temp: af_array = std::ptr::null_mut();
        let err_val = af_convolve2_nn(
            &mut temp as *mut af_array,
            signal.get(),
            filter.get(),
            strides.ndims() as c_uint,
            strides.get().as_ptr() as *const dim_t,
            padding.ndims() as c_uint,
            padding.get().as_ptr() as *const dim_t,
            dilation.ndims() as c_uint,
            dilation.get().as_ptr() as *const dim_t,
        );
        HANDLE_ERROR(AfError::from(err_val));
        temp.into()
    }
}

















#[allow(clippy::too_many_arguments)]
pub fn convolve2_gradient_nn<T>(
    incoming_grad: &Array<T>,
    original_signal: &Array<T>,
    original_filter: &Array<T>,
    convolved_output: &Array<T>,
    strides: Dim4,
    padding: Dim4,
    dilation: Dim4,
    grad_type: ConvGradientType,
) -> Array<T>
where
    T: HasAfEnum + RealFloating,
{
    unsafe {
        let mut temp: af_array = std::ptr::null_mut();
        let err_val = af_convolve2_gradient_nn(
            &mut temp as *mut af_array,
            incoming_grad.get(),
            original_signal.get(),
            original_filter.get(),
            convolved_output.get(),
            strides.ndims() as c_uint,
            strides.get().as_ptr() as *const dim_t,
            padding.ndims() as c_uint,
            padding.get().as_ptr() as *const dim_t,
            dilation.ndims() as c_uint,
            dilation.get().as_ptr() as *const dim_t,
            grad_type as c_uint,
        );
        HANDLE_ERROR(AfError::from(err_val));
        temp.into()
    }
}

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