Merge branch 'master' into parvec

1 files changed, 86 insertions, 0 deletions

diff --git a/python/astra/experimental.pyx b/python/astra/experimental.pyx
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+++ b/python/astra/experimental.pyx
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+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
+#
+# Contact: astra@uantwerpen.be
+# Website: http://sf.net/projects/astra-toolbox
+#
+# 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":
+        cdef cppclass CCompositeGeometryManager:
+            bool doFP(CProjector3D *, vector[CFloat32VolumeData3DMemory *], vector[CFloat32ProjectionData3DMemory *])
+            bool doBP(CProjector3D *, vector[CFloat32VolumeData3DMemory *], vector[CFloat32ProjectionData3DMemory *])
+
+    cdef extern from *:
+        CFloat32VolumeData3DMemory * dynamic_cast_vol_mem "dynamic_cast<astra::CFloat32VolumeData3DMemory*>" (CFloat32Data3D * ) except NULL
+        CFloat32ProjectionData3DMemory * dynamic_cast_proj_mem "dynamic_cast<astra::CFloat32ProjectionData3DMemory*>" (CFloat32Data3D * ) except NULL
+
+    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, t):
+        cdef vector[CFloat32VolumeData3DMemory *] vol
+        cdef CFloat32VolumeData3DMemory * pVolObject
+        cdef CFloat32ProjectionData3DMemory * 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[CFloat32ProjectionData3DMemory *] 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):
+                raise Exception("Failed to perform FP")
+        else:
+            if not m.doBP(projector, vol, proj):
+                raise Exception("Failed to perform BP")
+
+    def do_composite_FP(projector_id, vol_ids, proj_ids):
+        do_composite(projector_id, vol_ids, proj_ids, "FP")
+
+    def do_composite_BP(projector_id, vol_ids, proj_ids):
+        do_composite(projector_id, vol_ids, proj_ids, "BP")