unidepth/layers/activation.py

import torch
import torch.nn as nn
import torch.nn.functional as F


class SwiGLU(nn.Module):
    def forward(self, x: torch.Tensor) -> torch.Tensor:
        x, gates = x.chunk(2, dim=-1)
        return x * F.silu(gates)


class GEGLU(nn.Module):
    def forward(self, x: torch.Tensor) -> torch.Tensor:
        x, gates = x.chunk(2, dim=-1)
        return x * F.gelu(gates)