# -----------------------------------------------------------------------
# Copyright: 2010-2021, imec Vision Lab, University of Antwerp
# 2013-2021, CWI, Amsterdam
#
# Contact: astra@astra-toolbox.com
# Website: http://www.astra-toolbox.com/
#
# This file is part of the ASTRA Toolbox.
#
#
# The ASTRA Toolbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# The ASTRA Toolbox is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
#
# -----------------------------------------------------------------------
#
# distutils: language = c++
# distutils: libraries = astra
include "config.pxi"
IF HAVE_CUDA==True:
import six
from .PyIncludes cimport *
from libcpp.vector cimport vector
cdef extern from "astra/CompositeGeometryManager.h" namespace "astra::CCompositeGeometryManager::SJob":
cdef enum EMode:
MODE_ADD = 0
MODE_SET = 1
cdef extern from "astra/CompositeGeometryManager.h" namespace "astra":
cdef cppclass CCompositeGeometryManager:
bool doFP(CProjector3D *, vector[CFloat32VolumeData3D *], vector[CFloat32ProjectionData3D *], EMode)
bool doBP(CProjector3D *, vector[CFloat32VolumeData3D *], vector[CFloat32ProjectionData3D *], EMode)
bool doFDK(CProjector3D *, CFloat32VolumeData3D *, CFloat32ProjectionData3D *, bool, const float*, EMode)
cdef extern from *:
CFloat32VolumeData3D * dynamic_cast_vol_mem "dynamic_cast<astra::CFloat32VolumeData3D*>" (CFloat32Data3D * )
CFloat32ProjectionData3D * dynamic_cast_proj_mem "dynamic_cast<astra::CFloat32ProjectionData3D*>" (CFloat32Data3D * )
cdef extern from "astra/Float32ProjectionData3D.h" namespace "astra":
cdef cppclass CFloat32ProjectionData3D:
bool isInitialized()
cdef extern from "astra/Float32VolumeData3D.h" namespace "astra":
cdef cppclass CFloat32VolumeData3D:
bool isInitialized()
cimport PyProjector3DManager
from .PyProjector3DManager cimport CProjector3DManager
cimport PyData3DManager
from .PyData3DManager cimport CData3DManager
cdef CProjector3DManager * manProj = <CProjector3DManager * >PyProjector3DManager.getSingletonPtr()
cdef CData3DManager * man3d = <CData3DManager * >PyData3DManager.getSingletonPtr()
def do_composite(projector_id, vol_ids, proj_ids, mode, t):
if mode != MODE_ADD and mode != MODE_SET:
raise RuntimeError("internal error: wrong composite mode")
cdef vector[CFloat32VolumeData3D *] vol
cdef CFloat32VolumeData3D * pVolObject
cdef CFloat32ProjectionData3D * pProjObject
for v in vol_ids:
pVolObject = dynamic_cast_vol_mem(man3d.get(v))
if pVolObject == NULL:
raise Exception("Data object not found")
if not pVolObject.isInitialized():
raise Exception("Data object not initialized properly")
vol.push_back(pVolObject)
cdef vector[CFloat32ProjectionData3D *] proj
for v in proj_ids:
pProjObject = dynamic_cast_proj_mem(man3d.get(v))
if pProjObject == NULL:
raise Exception("Data object not found")
if not pProjObject.isInitialized():
raise Exception("Data object not initialized properly")
proj.push_back(pProjObject)
cdef CCompositeGeometryManager m
cdef CProjector3D * projector = manProj.get(projector_id) # may be NULL
if t == "FP":
if not m.doFP(projector, vol, proj, mode):
raise Exception("Failed to perform FP")
elif t == "BP":
if not m.doBP(projector, vol, proj, mode):
raise Exception("Failed to perform BP")
else:
raise RuntimeError("internal error: wrong composite op type")
def do_composite_FP(projector_id, vol_ids, proj_ids):
do_composite(projector_id, vol_ids, proj_ids, MODE_SET, "FP")
def do_composite_BP(projector_id, vol_ids, proj_ids):
do_composite(projector_id, vol_ids, proj_ids, MODE_SET, "BP")
def accumulate_FP(projector_id, vol_id, proj_id):
do_composite(projector_id, [vol_id], [proj_id], MODE_ADD, "FP")
def accumulate_BP(projector_id, vol_id, proj_id):
do_composite(projector_id, [vol_id], [proj_id], MODE_ADD, "BP")
def accumulate_FDK(projector_id, vol_id, proj_id):
cdef CFloat32VolumeData3D * pVolObject
cdef CFloat32ProjectionData3D * pProjObject
pVolObject = dynamic_cast_vol_mem(man3d.get(vol_id))
if pVolObject == NULL:
raise Exception("Data object not found")
if not pVolObject.isInitialized():
raise Exception("Data object not initialized properly")
pProjObject = dynamic_cast_proj_mem(man3d.get(proj_id))
if pProjObject == NULL:
raise Exception("Data object not found")
if not pProjObject.isInitialized():
raise Exception("Data object not initialized properly")
cdef CCompositeGeometryManager m
cdef CProjector3D * projector = manProj.get(projector_id) # may be NULL
if not m.doFDK(projector, pVolObject, pProjObject, False, NULL, MODE_ADD):
raise Exception("Failed to perform FDK")
cimport utils
from .utils cimport linkVolFromGeometry, linkProjFromGeometry
def direct_FPBP3D(projector_id, vol, proj, mode, t):
if mode != MODE_ADD and mode != MODE_SET:
raise RuntimeError("internal error: wrong composite mode")
cdef CProjector3D * projector = manProj.get(projector_id)
if projector == NULL:
raise Exception("Projector not found")
cdef CVolumeGeometry3D *pGeometry = projector.getVolumeGeometry()
cdef CProjectionGeometry3D *ppGeometry = projector.getProjectionGeometry()
cdef CFloat32VolumeData3D * pVol = linkVolFromGeometry(pGeometry, vol)
cdef CFloat32ProjectionData3D * pProj = linkProjFromGeometry(ppGeometry, proj)
cdef vector[CFloat32VolumeData3D *] vols
cdef vector[CFloat32ProjectionData3D *] projs
vols.push_back(pVol)
projs.push_back(pProj)
cdef CCompositeGeometryManager m
try:
if t == "FP":
if not m.doFP(projector, vols, projs, mode):
raise Exception("Failed to perform FP")
elif t == "BP":
if not m.doBP(projector, vols, projs, mode):
raise Exception("Failed to perform BP")
else:
raise RuntimeError("internal error: wrong op type")
finally:
del pVol
del pProj
def direct_FP3D(projector_id, vol, proj):
"""Perform a 3D forward projection with pre-allocated input/output.
:param projector_id: A 3D projector object handle
:type datatype: :class:`int`
:param vol: The input data, as either a numpy array, or a GPULink object
:type datatype: :class:`numpy.ndarray` or :class:`astra.data3d.GPULink`
:param proj: The pre-allocated output data, either numpy array or GPULink
:type datatype: :class:`numpy.ndarray` or :class:`astra.data3d.GPULink`
"""
direct_FPBP3D(projector_id, vol, proj, MODE_SET, "FP")
def direct_BP3D(projector_id, vol, proj):
"""Perform a 3D back projection with pre-allocated input/output.
:param projector_id: A 3D projector object handle
:type datatype: :class:`int`
:param vol: The pre-allocated output data, as either a numpy array, or a GPULink object
:type datatype: :class:`numpy.ndarray` or :class:`astra.data3d.GPULink`
:param proj: The input data, either numpy array or GPULink
:type datatype: :class:`numpy.ndarray` or :class:`astra.data3d.GPULink`
"""
direct_FPBP3D(projector_id, vol, proj, MODE_SET, "BP")