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local THNN = require 'nn.THNN'
local VolumetricDilatedMaxPooling, parent = torch.class('nn.VolumetricDilatedMaxPooling', 'nn.VolumetricMaxPooling')
function VolumetricDilatedMaxPooling:__init(kT, kW, kH, dT, dW, dH, padT, padW, padH, dilationT, dilationW, dilationH)
parent.__init(self, kT, kW, kH, dT, dW, dH, padT, padW, padH)
self.dilationT = dilationT or 1
self.dilationW = dilationW or 1
self.dilationH = dilationH or 1
end
function VolumetricDilatedMaxPooling:updateOutput(input)
local dims = input:dim()
self.itime = input:size(dims-2)
self.iheight = input:size(dims-1)
self.iwidth = input:size(dims)
self.indices = self.indices or torch.LongTensor()
if torch.typename(input):find('torch%.Cuda.*Tensor') then
self.indices = torch.CudaLongTensor and self.indices:cudaLong() or self.indices
else
self.indices = self.indices:long()
end
input.THNN.VolumetricDilatedMaxPooling_updateOutput(
input:cdata(),
self.output:cdata(),
self.indices:cdata(),
self.kT, self.kW, self.kH,
self.dT, self.dW, self.dH,
self.padT, self.padW, self.padH,
self.dilationT, self.dilationW, self.dilationH,
self.ceil_mode
)
return self.output
end
function VolumetricDilatedMaxPooling:updateGradInput(input, gradOutput)
input.THNN.VolumetricDilatedMaxPooling_updateGradInput(
input:cdata(),
gradOutput:cdata(),
self.gradInput:cdata(),
self.indices:cdata(),
self.kT, self.kW, self.kH,
self.dT, self.dW, self.dH,
self.padT, self.padW, self.padH,
self.dilationT, self.dilationW, self.dilationH,
self.ceil_mode
)
return self.gradInput
end
function VolumetricDilatedMaxPooling:clearState()
if self.indices then
self.indices:set()
end
return parent.clearState(self)
end
function VolumetricDilatedMaxPooling:__tostring__()
local s = string.format('%s(%dx%dx%d, %d,%d,%d', torch.type(self),
self.kT, self.kW, self.kH, self.dT, self.dW, self.dH)
if (self.padT or self.padW or self.padH) and
(self.padT ~= 0 or self.padW ~= 0 or self.padH ~= 0) then
s = s .. ', ' .. self.padT.. ',' .. self.padW .. ','.. self.padH
end
s = s .. ', ' .. self.dilationT .. ',' .. self.dilationW .. ',' .. self.dilationH
s = s .. ')'
return s
end
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