Add Volumetric Dilated Max Pooling

new file:   VolumetricDilatedMaxPooling.lua
modified:   init.lua
modified:   lib/THNN/generic/THNN.h
copied:     lib/THNN/generic/VolumetricMaxPooling.c -> lib/THNN/generic/VolumetricDilatedMaxPooling.c
modified:   lib/THNN/generic/VolumetricMaxPooling.c
modified:   lib/THNN/init.c
modified:   test.lua

Update docs
modified:   doc/convolution.md

Resolved bug in ceil mode
modified:   lib/THNN/generic/VolumetricDilatedMaxPooling.c

1 files changed, 64 insertions, 0 deletions

diff --git a/VolumetricDilatedMaxPooling.lua b/VolumetricDilatedMaxPooling.lua
new file mode 100644
index 0000000..050e2c9
--- /dev/null
+++ b/VolumetricDilatedMaxPooling.lua
@@ -0,0 +1,64 @@
+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 input.new()
+   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.dT, self.dW, self.dH,
+      self.padT, self.padW, self.padH,
+      self.dilationT, self.dilationW, self.dilationH
+   )
+   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