You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
214 lines
6.4 KiB
214 lines
6.4 KiB
# -*- coding: utf-8 -*-
|
|
# This file is part of Eigen, a lightweight C++ template library
|
|
# for linear algebra.
|
|
#
|
|
# Copyright (C) 2009 Benjamin Schindler <bschindler@inf.ethz.ch>
|
|
#
|
|
# This Source Code Form is subject to the terms of the Mozilla Public
|
|
# License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
# Pretty printers for StormEigen::Matrix
|
|
# This is still pretty basic as the python extension to gdb is still pretty basic.
|
|
# It cannot handle complex eigen types and it doesn't support any of the other eigen types
|
|
# Such as quaternion or some other type.
|
|
# This code supports fixed size as well as dynamic size matrices
|
|
|
|
# To use it:
|
|
#
|
|
# * Create a directory and put the file as well as an empty __init__.py in
|
|
# that directory.
|
|
# * Create a ~/.gdbinit file, that contains the following:
|
|
# python
|
|
# import sys
|
|
# sys.path.insert(0, '/path/to/eigen/printer/directory')
|
|
# from printers import register_eigen_printers
|
|
# register_eigen_printers (None)
|
|
# end
|
|
|
|
import gdb
|
|
import re
|
|
import itertools
|
|
|
|
|
|
class EigenMatrixPrinter:
|
|
"Print Eigen Matrix or Array of some kind"
|
|
|
|
def __init__(self, variety, val):
|
|
"Extract all the necessary information"
|
|
|
|
# Save the variety (presumably "Matrix" or "Array") for later usage
|
|
self.variety = variety
|
|
|
|
# The gdb extension does not support value template arguments - need to extract them by hand
|
|
type = val.type
|
|
if type.code == gdb.TYPE_CODE_REF:
|
|
type = type.target()
|
|
self.type = type.unqualified().strip_typedefs()
|
|
tag = self.type.tag
|
|
regex = re.compile('\<.*\>')
|
|
m = regex.findall(tag)[0][1:-1]
|
|
template_params = m.split(',')
|
|
template_params = [x.replace(" ", "") for x in template_params]
|
|
|
|
if template_params[1] == '-0x00000000000000001' or template_params[1] == '-0x000000001' or template_params[1] == '-1':
|
|
self.rows = val['m_storage']['m_rows']
|
|
else:
|
|
self.rows = int(template_params[1])
|
|
|
|
if template_params[2] == '-0x00000000000000001' or template_params[2] == '-0x000000001' or template_params[2] == '-1':
|
|
self.cols = val['m_storage']['m_cols']
|
|
else:
|
|
self.cols = int(template_params[2])
|
|
|
|
self.options = 0 # default value
|
|
if len(template_params) > 3:
|
|
self.options = template_params[3];
|
|
|
|
self.rowMajor = (int(self.options) & 0x1)
|
|
|
|
self.innerType = self.type.template_argument(0)
|
|
|
|
self.val = val
|
|
|
|
# Fixed size matrices have a struct as their storage, so we need to walk through this
|
|
self.data = self.val['m_storage']['m_data']
|
|
if self.data.type.code == gdb.TYPE_CODE_STRUCT:
|
|
self.data = self.data['array']
|
|
self.data = self.data.cast(self.innerType.pointer())
|
|
|
|
class _iterator:
|
|
def __init__ (self, rows, cols, dataPtr, rowMajor):
|
|
self.rows = rows
|
|
self.cols = cols
|
|
self.dataPtr = dataPtr
|
|
self.currentRow = 0
|
|
self.currentCol = 0
|
|
self.rowMajor = rowMajor
|
|
|
|
def __iter__ (self):
|
|
return self
|
|
|
|
def next(self):
|
|
return self.__next__() # Python 2.x compatibility
|
|
|
|
def __next__(self):
|
|
|
|
row = self.currentRow
|
|
col = self.currentCol
|
|
if self.rowMajor == 0:
|
|
if self.currentCol >= self.cols:
|
|
raise StopIteration
|
|
|
|
self.currentRow = self.currentRow + 1
|
|
if self.currentRow >= self.rows:
|
|
self.currentRow = 0
|
|
self.currentCol = self.currentCol + 1
|
|
else:
|
|
if self.currentRow >= self.rows:
|
|
raise StopIteration
|
|
|
|
self.currentCol = self.currentCol + 1
|
|
if self.currentCol >= self.cols:
|
|
self.currentCol = 0
|
|
self.currentRow = self.currentRow + 1
|
|
|
|
|
|
item = self.dataPtr.dereference()
|
|
self.dataPtr = self.dataPtr + 1
|
|
if (self.cols == 1): #if it's a column vector
|
|
return ('[%d]' % (row,), item)
|
|
elif (self.rows == 1): #if it's a row vector
|
|
return ('[%d]' % (col,), item)
|
|
return ('[%d,%d]' % (row, col), item)
|
|
|
|
def children(self):
|
|
|
|
return self._iterator(self.rows, self.cols, self.data, self.rowMajor)
|
|
|
|
def to_string(self):
|
|
return "StormEigen::%s<%s,%d,%d,%s> (data ptr: %s)" % (self.variety, self.innerType, self.rows, self.cols, "RowMajor" if self.rowMajor else "ColMajor", self.data)
|
|
|
|
class EigenQuaternionPrinter:
|
|
"Print an Eigen Quaternion"
|
|
|
|
def __init__(self, val):
|
|
"Extract all the necessary information"
|
|
# The gdb extension does not support value template arguments - need to extract them by hand
|
|
type = val.type
|
|
if type.code == gdb.TYPE_CODE_REF:
|
|
type = type.target()
|
|
self.type = type.unqualified().strip_typedefs()
|
|
self.innerType = self.type.template_argument(0)
|
|
self.val = val
|
|
|
|
# Quaternions have a struct as their storage, so we need to walk through this
|
|
self.data = self.val['m_coeffs']['m_storage']['m_data']['array']
|
|
self.data = self.data.cast(self.innerType.pointer())
|
|
|
|
class _iterator:
|
|
def __init__ (self, dataPtr):
|
|
self.dataPtr = dataPtr
|
|
self.currentElement = 0
|
|
self.elementNames = ['x', 'y', 'z', 'w']
|
|
|
|
def __iter__ (self):
|
|
return self
|
|
|
|
def next(self):
|
|
return self.__next__() # Python 2.x compatibility
|
|
|
|
def __next__(self):
|
|
element = self.currentElement
|
|
|
|
if self.currentElement >= 4: #there are 4 elements in a quanternion
|
|
raise StopIteration
|
|
|
|
self.currentElement = self.currentElement + 1
|
|
|
|
item = self.dataPtr.dereference()
|
|
self.dataPtr = self.dataPtr + 1
|
|
return ('[%s]' % (self.elementNames[element],), item)
|
|
|
|
def children(self):
|
|
|
|
return self._iterator(self.data)
|
|
|
|
def to_string(self):
|
|
return "StormEigen::Quaternion<%s> (data ptr: %s)" % (self.innerType, self.data)
|
|
|
|
def build_eigen_dictionary ():
|
|
pretty_printers_dict[re.compile('^StormEigen::Quaternion<.*>$')] = lambda val: EigenQuaternionPrinter(val)
|
|
pretty_printers_dict[re.compile('^StormEigen::Matrix<.*>$')] = lambda val: EigenMatrixPrinter("Matrix", val)
|
|
pretty_printers_dict[re.compile('^StormEigen::Array<.*>$')] = lambda val: EigenMatrixPrinter("Array", val)
|
|
|
|
def register_eigen_printers(obj):
|
|
"Register eigen pretty-printers with objfile Obj"
|
|
|
|
if obj == None:
|
|
obj = gdb
|
|
obj.pretty_printers.append(lookup_function)
|
|
|
|
def lookup_function(val):
|
|
"Look-up and return a pretty-printer that can print va."
|
|
|
|
type = val.type
|
|
|
|
if type.code == gdb.TYPE_CODE_REF:
|
|
type = type.target()
|
|
|
|
type = type.unqualified().strip_typedefs()
|
|
|
|
typename = type.tag
|
|
if typename == None:
|
|
return None
|
|
|
|
for function in pretty_printers_dict:
|
|
if function.search(typename):
|
|
return pretty_printers_dict[function](val)
|
|
|
|
return None
|
|
|
|
pretty_printers_dict = {}
|
|
|
|
build_eigen_dictionary ()
|