| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| |
| #ifndef EIGEN_CXX11_TENSOR_TENSOR_VOLUME_PATCH_H |
| #define EIGEN_CXX11_TENSOR_TENSOR_VOLUME_PATCH_H |
| |
| namespace Eigen { |
| |
| /** \class TensorVolumePatch |
| * \ingroup CXX11_Tensor_Module |
| * |
| * \brief Patch extraction specialized for processing of volumetric data. |
| * This assumes that the input has a least 4 dimensions ordered as follows: |
| * - channels |
| * - planes |
| * - rows |
| * - columns |
| * - (optional) additional dimensions such as time or batch size. |
| * Calling the volume patch code with patch_planes, patch_rows, and patch_cols |
| * is equivalent to calling the regular patch extraction code with parameters |
| * d, patch_planes, patch_rows, patch_cols, and 1 for all the additional |
| * dimensions. |
| */ |
| namespace internal { |
| template<DenseIndex Planes, DenseIndex Rows, DenseIndex Cols, typename XprType> |
| struct traits<TensorVolumePatchOp<Planes, Rows, Cols, XprType> > : public traits<XprType> |
| { |
| typedef typename internal::remove_const<typename XprType::Scalar>::type Scalar; |
| typedef traits<XprType> XprTraits; |
| typedef typename XprTraits::StorageKind StorageKind; |
| typedef typename XprTraits::Index Index; |
| typedef typename XprType::Nested Nested; |
| typedef typename remove_reference<Nested>::type _Nested; |
| static const int NumDimensions = XprTraits::NumDimensions + 1; |
| static const int Layout = XprTraits::Layout; |
| }; |
| |
| template<DenseIndex Planes, DenseIndex Rows, DenseIndex Cols, typename XprType> |
| struct eval<TensorVolumePatchOp<Planes, Rows, Cols, XprType>, Eigen::Dense> |
| { |
| typedef const TensorVolumePatchOp<Planes, Rows, Cols, XprType>& type; |
| }; |
| |
| template<DenseIndex Planes, DenseIndex Rows, DenseIndex Cols, typename XprType> |
| struct nested<TensorVolumePatchOp<Planes, Rows, Cols, XprType>, 1, typename eval<TensorVolumePatchOp<Planes, Rows, Cols, XprType> >::type> |
| { |
| typedef TensorVolumePatchOp<Planes, Rows, Cols, XprType> type; |
| }; |
| |
| } // end namespace internal |
| |
| template<DenseIndex Planes, DenseIndex Rows, DenseIndex Cols, typename XprType> |
| class TensorVolumePatchOp : public TensorBase<TensorVolumePatchOp<Planes, Rows, Cols, XprType>, ReadOnlyAccessors> |
| { |
| public: |
| typedef typename Eigen::internal::traits<TensorVolumePatchOp>::Scalar Scalar; |
| typedef typename Eigen::NumTraits<Scalar>::Real RealScalar; |
| typedef typename XprType::CoeffReturnType CoeffReturnType; |
| typedef typename Eigen::internal::nested<TensorVolumePatchOp>::type Nested; |
| typedef typename Eigen::internal::traits<TensorVolumePatchOp>::StorageKind StorageKind; |
| typedef typename Eigen::internal::traits<TensorVolumePatchOp>::Index Index; |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE TensorVolumePatchOp(const XprType& expr, DenseIndex patch_planes, DenseIndex patch_rows, DenseIndex patch_cols, |
| DenseIndex plane_strides, DenseIndex row_strides, DenseIndex col_strides, |
| DenseIndex in_plane_strides, DenseIndex in_row_strides, DenseIndex in_col_strides, |
| DenseIndex plane_inflate_strides, DenseIndex row_inflate_strides, DenseIndex col_inflate_strides, |
| PaddingType padding_type, Scalar padding_value) |
| : m_xpr(expr), m_patch_planes(patch_planes), m_patch_rows(patch_rows), m_patch_cols(patch_cols), |
| m_plane_strides(plane_strides), m_row_strides(row_strides), m_col_strides(col_strides), |
| m_in_plane_strides(in_plane_strides), m_in_row_strides(in_row_strides), m_in_col_strides(in_col_strides), |
| m_plane_inflate_strides(plane_inflate_strides), m_row_inflate_strides(row_inflate_strides), m_col_inflate_strides(col_inflate_strides), |
| m_padding_explicit(false), m_padding_top_z(0), m_padding_bottom_z(0), m_padding_top(0), m_padding_bottom(0), m_padding_left(0), m_padding_right(0), |
| m_padding_type(padding_type), m_padding_value(padding_value) {} |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE TensorVolumePatchOp(const XprType& expr, DenseIndex patch_planes, DenseIndex patch_rows, DenseIndex patch_cols, |
| DenseIndex plane_strides, DenseIndex row_strides, DenseIndex col_strides, |
| DenseIndex in_plane_strides, DenseIndex in_row_strides, DenseIndex in_col_strides, |
| DenseIndex plane_inflate_strides, DenseIndex row_inflate_strides, DenseIndex col_inflate_strides, |
| DenseIndex padding_top_z, DenseIndex padding_bottom_z, |
| DenseIndex padding_top, DenseIndex padding_bottom, |
| DenseIndex padding_left, DenseIndex padding_right, |
| Scalar padding_value) |
| : m_xpr(expr), m_patch_planes(patch_planes), m_patch_rows(patch_rows), m_patch_cols(patch_cols), |
| m_plane_strides(plane_strides), m_row_strides(row_strides), m_col_strides(col_strides), |
| m_in_plane_strides(in_plane_strides), m_in_row_strides(in_row_strides), m_in_col_strides(in_col_strides), |
| m_plane_inflate_strides(plane_inflate_strides), m_row_inflate_strides(row_inflate_strides), m_col_inflate_strides(col_inflate_strides), |
| m_padding_explicit(true), m_padding_top_z(padding_top_z), m_padding_bottom_z(padding_bottom_z), m_padding_top(padding_top), m_padding_bottom(padding_bottom), |
| m_padding_left(padding_left), m_padding_right(padding_right), |
| m_padding_type(PADDING_VALID), m_padding_value(padding_value) {} |
| |
| EIGEN_DEVICE_FUNC |
| DenseIndex patch_planes() const { return m_patch_planes; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex patch_rows() const { return m_patch_rows; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex patch_cols() const { return m_patch_cols; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex plane_strides() const { return m_plane_strides; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex row_strides() const { return m_row_strides; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex col_strides() const { return m_col_strides; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex in_plane_strides() const { return m_in_plane_strides; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex in_row_strides() const { return m_in_row_strides; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex in_col_strides() const { return m_in_col_strides; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex plane_inflate_strides() const { return m_plane_inflate_strides; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex row_inflate_strides() const { return m_row_inflate_strides; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex col_inflate_strides() const { return m_col_inflate_strides; } |
| EIGEN_DEVICE_FUNC |
| bool padding_explicit() const { return m_padding_explicit; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex padding_top_z() const { return m_padding_top_z; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex padding_bottom_z() const { return m_padding_bottom_z; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex padding_top() const { return m_padding_top; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex padding_bottom() const { return m_padding_bottom; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex padding_left() const { return m_padding_left; } |
| EIGEN_DEVICE_FUNC |
| DenseIndex padding_right() const { return m_padding_right; } |
| EIGEN_DEVICE_FUNC |
| PaddingType padding_type() const { return m_padding_type; } |
| EIGEN_DEVICE_FUNC |
| Scalar padding_value() const { return m_padding_value; } |
| |
| EIGEN_DEVICE_FUNC |
| const typename internal::remove_all<typename XprType::Nested>::type& |
| expression() const { return m_xpr; } |
| |
| protected: |
| typename XprType::Nested m_xpr; |
| const DenseIndex m_patch_planes; |
| const DenseIndex m_patch_rows; |
| const DenseIndex m_patch_cols; |
| const DenseIndex m_plane_strides; |
| const DenseIndex m_row_strides; |
| const DenseIndex m_col_strides; |
| const DenseIndex m_in_plane_strides; |
| const DenseIndex m_in_row_strides; |
| const DenseIndex m_in_col_strides; |
| const DenseIndex m_plane_inflate_strides; |
| const DenseIndex m_row_inflate_strides; |
| const DenseIndex m_col_inflate_strides; |
| const bool m_padding_explicit; |
| const DenseIndex m_padding_top_z; |
| const DenseIndex m_padding_bottom_z; |
| const DenseIndex m_padding_top; |
| const DenseIndex m_padding_bottom; |
| const DenseIndex m_padding_left; |
| const DenseIndex m_padding_right; |
| const PaddingType m_padding_type; |
| const Scalar m_padding_value; |
| }; |
| |
| |
| // Eval as rvalue |
| template<DenseIndex Planes, DenseIndex Rows, DenseIndex Cols, typename ArgType, typename Device> |
| struct TensorEvaluator<const TensorVolumePatchOp<Planes, Rows, Cols, ArgType>, Device> |
| { |
| typedef TensorVolumePatchOp<Planes, Rows, Cols, ArgType> XprType; |
| typedef typename XprType::Index Index; |
| static const int NumInputDims = internal::array_size<typename TensorEvaluator<ArgType, Device>::Dimensions>::value; |
| static const int NumDims = NumInputDims + 1; |
| typedef DSizes<Index, NumDims> Dimensions; |
| typedef typename internal::remove_const<typename XprType::Scalar>::type Scalar; |
| typedef typename XprType::CoeffReturnType CoeffReturnType; |
| typedef typename PacketType<CoeffReturnType, Device>::type PacketReturnType; |
| static const int PacketSize = internal::unpacket_traits<PacketReturnType>::size; |
| |
| enum { |
| IsAligned = false, |
| PacketAccess = TensorEvaluator<ArgType, Device>::PacketAccess, |
| BlockAccess = false, |
| Layout = TensorEvaluator<ArgType, Device>::Layout, |
| CoordAccess = false, |
| RawAccess = false |
| }; |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE TensorEvaluator(const XprType& op, const Device& device) |
| : m_impl(op.expression(), device) |
| { |
| EIGEN_STATIC_ASSERT((NumDims >= 5), YOU_MADE_A_PROGRAMMING_MISTAKE); |
| |
| m_paddingValue = op.padding_value(); |
| |
| const typename TensorEvaluator<ArgType, Device>::Dimensions& input_dims = m_impl.dimensions(); |
| |
| // Cache a few variables. |
| if (static_cast<int>(Layout) == static_cast<int>(ColMajor)) { |
| m_inputDepth = input_dims[0]; |
| m_inputPlanes = input_dims[1]; |
| m_inputRows = input_dims[2]; |
| m_inputCols = input_dims[3]; |
| } else { |
| m_inputDepth = input_dims[NumInputDims-1]; |
| m_inputPlanes = input_dims[NumInputDims-2]; |
| m_inputRows = input_dims[NumInputDims-3]; |
| m_inputCols = input_dims[NumInputDims-4]; |
| } |
| |
| m_plane_strides = op.plane_strides(); |
| m_row_strides = op.row_strides(); |
| m_col_strides = op.col_strides(); |
| |
| // Input strides and effective input/patch size |
| m_in_plane_strides = op.in_plane_strides(); |
| m_in_row_strides = op.in_row_strides(); |
| m_in_col_strides = op.in_col_strides(); |
| m_plane_inflate_strides = op.plane_inflate_strides(); |
| m_row_inflate_strides = op.row_inflate_strides(); |
| m_col_inflate_strides = op.col_inflate_strides(); |
| |
| // The "effective" spatial size after inflating data with zeros. |
| m_input_planes_eff = (m_inputPlanes - 1) * m_plane_inflate_strides + 1; |
| m_input_rows_eff = (m_inputRows - 1) * m_row_inflate_strides + 1; |
| m_input_cols_eff = (m_inputCols - 1) * m_col_inflate_strides + 1; |
| m_patch_planes_eff = op.patch_planes() + (op.patch_planes() - 1) * (m_in_plane_strides - 1); |
| m_patch_rows_eff = op.patch_rows() + (op.patch_rows() - 1) * (m_in_row_strides - 1); |
| m_patch_cols_eff = op.patch_cols() + (op.patch_cols() - 1) * (m_in_col_strides - 1); |
| |
| if (op.padding_explicit()) { |
| m_outputPlanes = numext::ceil((m_input_planes_eff + op.padding_top_z() + op.padding_bottom_z() - m_patch_planes_eff + 1.f) / static_cast<float>(m_plane_strides)); |
| m_outputRows = numext::ceil((m_input_rows_eff + op.padding_top() + op.padding_bottom() - m_patch_rows_eff + 1.f) / static_cast<float>(m_row_strides)); |
| m_outputCols = numext::ceil((m_input_cols_eff + op.padding_left() + op.padding_right() - m_patch_cols_eff + 1.f) / static_cast<float>(m_col_strides)); |
| m_planePaddingTop = op.padding_top_z(); |
| m_rowPaddingTop = op.padding_top(); |
| m_colPaddingLeft = op.padding_left(); |
| } else { |
| // Computing padding from the type |
| switch (op.padding_type()) { |
| case PADDING_VALID: |
| m_outputPlanes = numext::ceil((m_input_planes_eff - m_patch_planes_eff + 1.f) / static_cast<float>(m_plane_strides)); |
| m_outputRows = numext::ceil((m_input_rows_eff - m_patch_rows_eff + 1.f) / static_cast<float>(m_row_strides)); |
| m_outputCols = numext::ceil((m_input_cols_eff - m_patch_cols_eff + 1.f) / static_cast<float>(m_col_strides)); |
| m_planePaddingTop = 0; |
| m_rowPaddingTop = 0; |
| m_colPaddingLeft = 0; |
| break; |
| case PADDING_SAME: { |
| m_outputPlanes = numext::ceil(m_input_planes_eff / static_cast<float>(m_plane_strides)); |
| m_outputRows = numext::ceil(m_input_rows_eff / static_cast<float>(m_row_strides)); |
| m_outputCols = numext::ceil(m_input_cols_eff / static_cast<float>(m_col_strides)); |
| const Index dz = m_outputPlanes * m_plane_strides + m_patch_planes_eff - 1 - m_input_planes_eff; |
| const Index dy = m_outputRows * m_row_strides + m_patch_rows_eff - 1 - m_input_rows_eff; |
| const Index dx = m_outputCols * m_col_strides + m_patch_cols_eff - 1 - m_input_cols_eff; |
| m_planePaddingTop = dz - dz / 2; |
| m_rowPaddingTop = dy - dy / 2; |
| m_colPaddingLeft = dx - dx / 2; |
| break; |
| } |
| default: |
| eigen_assert(false && "unexpected padding"); |
| } |
| } |
| eigen_assert(m_outputRows > 0); |
| eigen_assert(m_outputCols > 0); |
| eigen_assert(m_outputPlanes > 0); |
| |
| // Dimensions for result of extraction. |
| if (static_cast<int>(Layout) == static_cast<int>(ColMajor)) { |
| // ColMajor |
| // 0: depth |
| // 1: patch_planes |
| // 2: patch_rows |
| // 3: patch_cols |
| // 4: number of patches |
| // 5 and beyond: anything else (such as batch). |
| m_dimensions[0] = input_dims[0]; |
| m_dimensions[1] = op.patch_planes(); |
| m_dimensions[2] = op.patch_rows(); |
| m_dimensions[3] = op.patch_cols(); |
| m_dimensions[4] = m_outputPlanes * m_outputRows * m_outputCols; |
| for (int i = 5; i < NumDims; ++i) { |
| m_dimensions[i] = input_dims[i-1]; |
| } |
| } else { |
| // RowMajor |
| // NumDims-1: depth |
| // NumDims-2: patch_planes |
| // NumDims-3: patch_rows |
| // NumDims-4: patch_cols |
| // NumDims-5: number of patches |
| // NumDims-6 and beyond: anything else (such as batch). |
| m_dimensions[NumDims-1] = input_dims[NumInputDims-1]; |
| m_dimensions[NumDims-2] = op.patch_planes(); |
| m_dimensions[NumDims-3] = op.patch_rows(); |
| m_dimensions[NumDims-4] = op.patch_cols(); |
| m_dimensions[NumDims-5] = m_outputPlanes * m_outputRows * m_outputCols; |
| for (int i = NumDims-6; i >= 0; --i) { |
| m_dimensions[i] = input_dims[i]; |
| } |
| } |
| |
| // Strides for the output tensor. |
| if (static_cast<int>(Layout) == static_cast<int>(ColMajor)) { |
| m_rowStride = m_dimensions[1]; |
| m_colStride = m_dimensions[2] * m_rowStride; |
| m_patchStride = m_colStride * m_dimensions[3] * m_dimensions[0]; |
| m_otherStride = m_patchStride * m_dimensions[4]; |
| } else { |
| m_rowStride = m_dimensions[NumDims-2]; |
| m_colStride = m_dimensions[NumDims-3] * m_rowStride; |
| m_patchStride = m_colStride * m_dimensions[NumDims-4] * m_dimensions[NumDims-1]; |
| m_otherStride = m_patchStride * m_dimensions[NumDims-5]; |
| } |
| |
| // Strides for navigating through the input tensor. |
| m_planeInputStride = m_inputDepth; |
| m_rowInputStride = m_inputDepth * m_inputPlanes; |
| m_colInputStride = m_inputDepth * m_inputRows * m_inputPlanes; |
| m_otherInputStride = m_inputDepth * m_inputRows * m_inputCols * m_inputPlanes; |
| |
| m_outputPlanesRows = m_outputPlanes * m_outputRows; |
| |
| // Fast representations of different variables. |
| m_fastOtherStride = internal::TensorIntDivisor<Index>(m_otherStride); |
| m_fastPatchStride = internal::TensorIntDivisor<Index>(m_patchStride); |
| m_fastColStride = internal::TensorIntDivisor<Index>(m_colStride); |
| m_fastRowStride = internal::TensorIntDivisor<Index>(m_rowStride); |
| m_fastInputRowStride = internal::TensorIntDivisor<Index>(m_row_inflate_strides); |
| m_fastInputColStride = internal::TensorIntDivisor<Index>(m_col_inflate_strides); |
| m_fastInputPlaneStride = internal::TensorIntDivisor<Index>(m_plane_inflate_strides); |
| m_fastInputColsEff = internal::TensorIntDivisor<Index>(m_input_cols_eff); |
| m_fastOutputPlanes = internal::TensorIntDivisor<Index>(m_outputPlanes); |
| m_fastOutputPlanesRows = internal::TensorIntDivisor<Index>(m_outputPlanesRows); |
| |
| if (static_cast<int>(Layout) == static_cast<int>(ColMajor)) { |
| m_fastOutputDepth = internal::TensorIntDivisor<Index>(m_dimensions[0]); |
| } else { |
| m_fastOutputDepth = internal::TensorIntDivisor<Index>(m_dimensions[NumDims-1]); |
| } |
| } |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Dimensions& dimensions() const { return m_dimensions; } |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool evalSubExprsIfNeeded(Scalar* /*data*/) { |
| m_impl.evalSubExprsIfNeeded(NULL); |
| return true; |
| } |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void cleanup() { |
| m_impl.cleanup(); |
| } |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE CoeffReturnType coeff(Index index) const |
| { |
| // Patch index corresponding to the passed in index. |
| const Index patchIndex = index / m_fastPatchStride; |
| |
| // Spatial offset within the patch. This has to be translated into 3D |
| // coordinates within the patch. |
| const Index patchOffset = (index - patchIndex * m_patchStride) / m_fastOutputDepth; |
| |
| // Batch, etc. |
| const Index otherIndex = (NumDims == 5) ? 0 : index / m_fastOtherStride; |
| const Index patch3DIndex = (NumDims == 5) ? patchIndex : (index - otherIndex * m_otherStride) / m_fastPatchStride; |
| |
| // Calculate column index in the input original tensor. |
| const Index colIndex = patch3DIndex / m_fastOutputPlanesRows; |
| const Index colOffset = patchOffset / m_fastColStride; |
| const Index inputCol = colIndex * m_col_strides + colOffset * m_in_col_strides - m_colPaddingLeft; |
| const Index origInputCol = (m_col_inflate_strides == 1) ? inputCol : ((inputCol >= 0) ? (inputCol / m_fastInputColStride) : 0); |
| if (inputCol < 0 || inputCol >= m_input_cols_eff || |
| ((m_col_inflate_strides != 1) && (inputCol != origInputCol * m_col_inflate_strides))) { |
| return Scalar(m_paddingValue); |
| } |
| |
| // Calculate row index in the original input tensor. |
| const Index rowIndex = (patch3DIndex - colIndex * m_outputPlanesRows) / m_fastOutputPlanes; |
| const Index rowOffset = (patchOffset - colOffset * m_colStride) / m_fastRowStride; |
| const Index inputRow = rowIndex * m_row_strides + rowOffset * m_in_row_strides - m_rowPaddingTop; |
| const Index origInputRow = (m_row_inflate_strides == 1) ? inputRow : ((inputRow >= 0) ? (inputRow / m_fastInputRowStride) : 0); |
| if (inputRow < 0 || inputRow >= m_input_rows_eff || |
| ((m_row_inflate_strides != 1) && (inputRow != origInputRow * m_row_inflate_strides))) { |
| return Scalar(m_paddingValue); |
| } |
| |
| // Calculate plane index in the original input tensor. |
| const Index planeIndex = (patch3DIndex - m_outputPlanes * (colIndex * m_outputRows + rowIndex)); |
| const Index planeOffset = patchOffset - colOffset * m_colStride - rowOffset * m_rowStride; |
| const Index inputPlane = planeIndex * m_plane_strides + planeOffset * m_in_plane_strides - m_planePaddingTop; |
| const Index origInputPlane = (m_plane_inflate_strides == 1) ? inputPlane : ((inputPlane >= 0) ? (inputPlane / m_fastInputPlaneStride) : 0); |
| if (inputPlane < 0 || inputPlane >= m_input_planes_eff || |
| ((m_plane_inflate_strides != 1) && (inputPlane != origInputPlane * m_plane_inflate_strides))) { |
| return Scalar(m_paddingValue); |
| } |
| |
| const int depth_index = static_cast<int>(Layout) == static_cast<int>(ColMajor) ? 0 : NumDims - 1; |
| const Index depth = index - (index / m_fastOutputDepth) * m_dimensions[depth_index]; |
| |
| const Index inputIndex = depth + |
| origInputRow * m_rowInputStride + |
| origInputCol * m_colInputStride + |
| origInputPlane * m_planeInputStride + |
| otherIndex * m_otherInputStride; |
| |
| return m_impl.coeff(inputIndex); |
| } |
| |
| template<int LoadMode> |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE PacketReturnType packet(Index index) const |
| { |
| EIGEN_STATIC_ASSERT((PacketSize > 1), YOU_MADE_A_PROGRAMMING_MISTAKE) |
| eigen_assert(index+PacketSize-1 < dimensions().TotalSize()); |
| |
| if (m_in_row_strides != 1 || m_in_col_strides != 1 || m_row_inflate_strides != 1 || m_col_inflate_strides != 1 || |
| m_in_plane_strides != 1 || m_plane_inflate_strides != 1) { |
| return packetWithPossibleZero(index); |
| } |
| |
| const Index indices[2] = {index, index + PacketSize - 1}; |
| const Index patchIndex = indices[0] / m_fastPatchStride; |
| if (patchIndex != indices[1] / m_fastPatchStride) { |
| return packetWithPossibleZero(index); |
| } |
| const Index otherIndex = (NumDims == 5) ? 0 : indices[0] / m_fastOtherStride; |
| eigen_assert(otherIndex == indices[1] / m_fastOtherStride); |
| |
| // Find the offset of the element wrt the location of the first element. |
| const Index patchOffsets[2] = {(indices[0] - patchIndex * m_patchStride) / m_fastOutputDepth, |
| (indices[1] - patchIndex * m_patchStride) / m_fastOutputDepth}; |
| |
| const Index patch3DIndex = (NumDims == 5) ? patchIndex : (indices[0] - otherIndex * m_otherStride) / m_fastPatchStride; |
| eigen_assert(patch3DIndex == (indices[1] - otherIndex * m_otherStride) / m_fastPatchStride); |
| |
| const Index colIndex = patch3DIndex / m_fastOutputPlanesRows; |
| const Index colOffsets[2] = { |
| patchOffsets[0] / m_fastColStride, |
| patchOffsets[1] / m_fastColStride}; |
| |
| // Calculate col indices in the original input tensor. |
| const Index inputCols[2] = { |
| colIndex * m_col_strides + colOffsets[0] - m_colPaddingLeft, |
| colIndex * m_col_strides + colOffsets[1] - m_colPaddingLeft}; |
| if (inputCols[1] < 0 || inputCols[0] >= m_inputCols) { |
| return internal::pset1<PacketReturnType>(Scalar(m_paddingValue)); |
| } |
| |
| if (inputCols[0] != inputCols[1]) { |
| return packetWithPossibleZero(index); |
| } |
| |
| const Index rowIndex = (patch3DIndex - colIndex * m_outputPlanesRows) / m_fastOutputPlanes; |
| const Index rowOffsets[2] = { |
| (patchOffsets[0] - colOffsets[0] * m_colStride) / m_fastRowStride, |
| (patchOffsets[1] - colOffsets[1] * m_colStride) / m_fastRowStride}; |
| eigen_assert(rowOffsets[0] <= rowOffsets[1]); |
| // Calculate col indices in the original input tensor. |
| const Index inputRows[2] = { |
| rowIndex * m_row_strides + rowOffsets[0] - m_rowPaddingTop, |
| rowIndex * m_row_strides + rowOffsets[1] - m_rowPaddingTop}; |
| |
| if (inputRows[1] < 0 || inputRows[0] >= m_inputRows) { |
| return internal::pset1<PacketReturnType>(Scalar(m_paddingValue)); |
| } |
| |
| if (inputRows[0] != inputRows[1]) { |
| return packetWithPossibleZero(index); |
| } |
| |
| const Index planeIndex = (patch3DIndex - m_outputPlanes * (colIndex * m_outputRows + rowIndex)); |
| const Index planeOffsets[2] = { |
| patchOffsets[0] - colOffsets[0] * m_colStride - rowOffsets[0] * m_rowStride, |
| patchOffsets[1] - colOffsets[1] * m_colStride - rowOffsets[1] * m_rowStride}; |
| eigen_assert(planeOffsets[0] <= planeOffsets[1]); |
| const Index inputPlanes[2] = { |
| planeIndex * m_plane_strides + planeOffsets[0] - m_planePaddingTop, |
| planeIndex * m_plane_strides + planeOffsets[1] - m_planePaddingTop}; |
| |
| if (inputPlanes[1] < 0 || inputPlanes[0] >= m_inputPlanes) { |
| return internal::pset1<PacketReturnType>(Scalar(m_paddingValue)); |
| } |
| |
| if (inputPlanes[0] >= 0 && inputPlanes[1] < m_inputPlanes) { |
| // no padding |
| const int depth_index = static_cast<int>(Layout) == static_cast<int>(ColMajor) ? 0 : NumDims - 1; |
| const Index depth = index - (index / m_fastOutputDepth) * m_dimensions[depth_index]; |
| const Index inputIndex = depth + |
| inputRows[0] * m_rowInputStride + |
| inputCols[0] * m_colInputStride + |
| m_planeInputStride * inputPlanes[0] + |
| otherIndex * m_otherInputStride; |
| return m_impl.template packet<Unaligned>(inputIndex); |
| } |
| |
| return packetWithPossibleZero(index); |
| } |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE TensorOpCost |
| costPerCoeff(bool vectorized) const { |
| const double compute_cost = |
| 10 * TensorOpCost::DivCost<Index>() + 21 * TensorOpCost::MulCost<Index>() + |
| 8 * TensorOpCost::AddCost<Index>(); |
| return TensorOpCost(0, 0, compute_cost, vectorized, PacketSize); |
| } |
| |
| EIGEN_DEVICE_FUNC Scalar* data() const { return NULL; } |
| |
| const TensorEvaluator<ArgType, Device>& impl() const { return m_impl; } |
| |
| Index planePaddingTop() const { return m_planePaddingTop; } |
| Index rowPaddingTop() const { return m_rowPaddingTop; } |
| Index colPaddingLeft() const { return m_colPaddingLeft; } |
| Index outputPlanes() const { return m_outputPlanes; } |
| Index outputRows() const { return m_outputRows; } |
| Index outputCols() const { return m_outputCols; } |
| Index userPlaneStride() const { return m_plane_strides; } |
| Index userRowStride() const { return m_row_strides; } |
| Index userColStride() const { return m_col_strides; } |
| Index userInPlaneStride() const { return m_in_plane_strides; } |
| Index userInRowStride() const { return m_in_row_strides; } |
| Index userInColStride() const { return m_in_col_strides; } |
| Index planeInflateStride() const { return m_plane_inflate_strides; } |
| Index rowInflateStride() const { return m_row_inflate_strides; } |
| Index colInflateStride() const { return m_col_inflate_strides; } |
| |
| protected: |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE PacketReturnType packetWithPossibleZero(Index index) const |
| { |
| EIGEN_ALIGN_MAX typename internal::remove_const<CoeffReturnType>::type values[PacketSize]; |
| for (int i = 0; i < PacketSize; ++i) { |
| values[i] = coeff(index+i); |
| } |
| PacketReturnType rslt = internal::pload<PacketReturnType>(values); |
| return rslt; |
| } |
| |
| Dimensions m_dimensions; |
| |
| // Parameters passed to the costructor. |
| Index m_plane_strides; |
| Index m_row_strides; |
| Index m_col_strides; |
| |
| Index m_outputPlanes; |
| Index m_outputRows; |
| Index m_outputCols; |
| |
| Index m_planePaddingTop; |
| Index m_rowPaddingTop; |
| Index m_colPaddingLeft; |
| |
| Index m_in_plane_strides; |
| Index m_in_row_strides; |
| Index m_in_col_strides; |
| |
| Index m_plane_inflate_strides; |
| Index m_row_inflate_strides; |
| Index m_col_inflate_strides; |
| |
| // Cached input size. |
| Index m_inputDepth; |
| Index m_inputPlanes; |
| Index m_inputRows; |
| Index m_inputCols; |
| |
| // Other cached variables. |
| Index m_outputPlanesRows; |
| |
| // Effective input/patch post-inflation size. |
| Index m_input_planes_eff; |
| Index m_input_rows_eff; |
| Index m_input_cols_eff; |
| Index m_patch_planes_eff; |
| Index m_patch_rows_eff; |
| Index m_patch_cols_eff; |
| |
| // Strides for the output tensor. |
| Index m_otherStride; |
| Index m_patchStride; |
| Index m_rowStride; |
| Index m_colStride; |
| |
| // Strides for the input tensor. |
| Index m_planeInputStride; |
| Index m_rowInputStride; |
| Index m_colInputStride; |
| Index m_otherInputStride; |
| |
| internal::TensorIntDivisor<Index> m_fastOtherStride; |
| internal::TensorIntDivisor<Index> m_fastPatchStride; |
| internal::TensorIntDivisor<Index> m_fastColStride; |
| internal::TensorIntDivisor<Index> m_fastRowStride; |
| internal::TensorIntDivisor<Index> m_fastInputPlaneStride; |
| internal::TensorIntDivisor<Index> m_fastInputRowStride; |
| internal::TensorIntDivisor<Index> m_fastInputColStride; |
| internal::TensorIntDivisor<Index> m_fastInputColsEff; |
| internal::TensorIntDivisor<Index> m_fastOutputPlanesRows; |
| internal::TensorIntDivisor<Index> m_fastOutputPlanes; |
| internal::TensorIntDivisor<Index> m_fastOutputDepth; |
| |
| Scalar m_paddingValue; |
| |
| TensorEvaluator<ArgType, Device> m_impl; |
| }; |
| |
| |
| } // end namespace Eigen |
| |
| #endif // EIGEN_CXX11_TENSOR_TENSOR_VOLUME_PATCH_H |
