From 64a48bea80b909311351dc3b1345a17c693ddb69 Mon Sep 17 00:00:00 2001
From: Willem Jan Palenstijn <Willem.Jan.Palenstijn@cwi.nl>
Date: Wed, 28 Sep 2016 14:58:41 +0200
Subject: Add experimental support for Octave

Based on initial patch by @kalvdans.
---
 build/linux/Makefile.in  | 51 +++++++++++++++++++++++++++++++++++++++++++++++-
 build/linux/configure.ac | 23 ++++++++++++++++++++++
 2 files changed, 73 insertions(+), 1 deletion(-)

(limited to 'build/linux')

diff --git a/build/linux/Makefile.in b/build/linux/Makefile.in
index 14027e1..076cfd1 100644
--- a/build/linux/Makefile.in
+++ b/build/linux/Makefile.in
@@ -5,6 +5,7 @@ boostutf=@HAVEBOOSTUTF@
 
 
 MATLAB_ROOT=@MATLAB_ROOT@
+octave=@HAVEOCTAVE@
 
 TARGETS=libastra.la
 
@@ -16,6 +17,10 @@ ifeq ($(python),yes)
 TARGETS+=py
 endif
 
+ifeq ($(octave),yes)
+TARGETS+=oct
+endif
+
 all: $(TARGETS)
 
 prefix=@prefix@
@@ -46,6 +51,16 @@ LIBS      += -lcudart -lcufft
 NVCC       = @NVCC@
 endif
 
+ifeq ($(octave),yes)
+OCTLDFLAGS:=$(LDFLAGS)
+CPPFLAGS += @OCTAVE_CPPFLAGS@
+ifeq ($(cuda),yes)
+OCTFLAGS=-DASTRA_CUDA
+else
+OCTFLAGS=
+endif
+endif
+
 ifeq ($(matlab),yes)
 CPPFLAGS+=-I$(MATLAB_ROOT)/extern/include -DMATLAB_MEX_FILE
 CXXFLAGS+=-fopenmp
@@ -259,6 +274,20 @@ ifeq ($(python),yes)
 MATLAB_MEX+=matlab/mex/astra_mex_plugin_c.$(MEXSUFFIX)
 endif
 
+OCTAVE_CXX_OBJECTS=\
+	matlab/mex/octave_support.o
+
+OCTAVE_MEX=\
+	matlab/mex/astra_mex_algorithm_c.mex \
+	matlab/mex/astra_mex_data2d_c.mex \
+	matlab/mex/astra_mex_c.mex \
+	matlab/mex/astra_mex_matrix_c.mex \
+	matlab/mex/astra_mex_projector_c.mex \
+	matlab/mex/astra_mex_projector3d_c.mex \
+	matlab/mex/astra_mex_log_c.mex \
+	matlab/mex/astra_mex_data3d_c.mex \
+	matlab/mex/astra_mex_direct_c.mex
+
 OBJECT_DIRS = src/ tests/ cuda/2d/ cuda/3d/ matlab/mex/ ./
 DEPDIRS = $(addsuffix $(DEPDIR),$(OBJECT_DIRS))
 -include $(wildcard $(addsuffix /*.d,$(DEPDIRS)))
@@ -294,6 +323,13 @@ python-root-install: libastra.la
 endif
 
 
+ifeq ($(octave),yes)
+oct: $(OCTAVE_MEX)
+
+%.mex: %.o $(MATLAB_CXX_OBJECTS) $(OCTAVE_CXX_OBJECTS) libastra.la
+	mkoctfile --mex $(OCTFLAGS) $(OCTLDFLAGS) $(LIBS) -L.libs -lastra --output $* $*.o $(MATLAB_CXX_OBJECTS) $(OCTAVE_CXX_OBJECTS)
+endif
+
 libastra.la: $(ALL_OBJECTS)
 	./libtool --mode=link --tag=CXX $(LD) -rpath $(LIBDIR) -o $@ $(LDFLAGS) $(LIBS) $+
 
@@ -374,7 +410,7 @@ distclean: clean
 	rm -rf $(srcdir)/autom4te.cache
 	rm -f $(srcdir)/configure Makefile
 
-install: install-libraries install-matlab install-python
+install: install-libraries install-matlab install-python install-octave
 
 install-libraries: libastra.la
 	$(INSTALL_SH) -m 755 -d @libdir@
@@ -413,6 +449,19 @@ else
 install-python:
 endif
 
+ifeq ($(octave),yes)
+# TODO: This install location doesn't work well for /usr or /usr/local
+install-octave: $(OCTAVE_MEX)
+	$(INSTALL_SH) -m 755 -d @prefix@/octave
+	$(INSTALL_SH) -m 755 -d @prefix@/octave/mex
+	$(INSTALL_SH) -m 755 -d @prefix@/octave/tools
+	$(INSTALL_SH) -m 644 $(OCTAVE_MEX) @prefix@/octave/mex
+	$(INSTALL_SH) -m 644 $(srcdir)/../../matlab/tools/*.m @prefix@/octave/tools
+# TODO: docs
+else
+install-octave:
+endif
+
 
 Makefile: $(srcdir)/Makefile.in config.status
 	CONFIG_HEADERS= CONFIG_LINKS= CONFIG_FILES=$@ $(SHELL) ./config.status
diff --git a/build/linux/configure.ac b/build/linux/configure.ac
index 630b08d..0d80cec 100644
--- a/build/linux/configure.ac
+++ b/build/linux/configure.ac
@@ -175,6 +175,28 @@ fi
 
 AC_SUBST(HAVEMATLAB)
 
+# octave
+
+AC_ARG_ENABLE(octave, [[  --disable-octave      disable Octave support]])
+if test x"$enable_octave" != xno; then
+  AC_PATH_PROG([HAVEOCTAVE], [octave-config], [no], [$PATH])
+  AC_MSG_CHECKING([for octave])
+  if test x"HAVEOCTAVE" != xno -a $HAVEMATLAB = yes; then
+    HAVEOCTAVE=no
+    AC_MSG_RESULT([no (since Matlab support is enabled)])
+  else
+    if test x"$HAVEOCTAVE" != xno; then
+      OCTAVE_CPPFLAGS="-I`octave-config -p OCTINCLUDEDIR`"
+      AC_SUBST(OCTAVE_CPPFLAGS)
+      HAVEOCTAVE=yes
+    fi
+    AC_MSG_RESULT($HAVEOCTAVE)
+  fi
+else
+  HAVEOCTAVE=no
+fi
+AC_SUBST(HAVEOCTAVE)
+
 # python
 
 AC_ARG_WITH(python, [[  --with-python=path      path of Python binary (optional)]],,)
@@ -271,6 +293,7 @@ echo
 echo "Summary of ASTRA Toolbox build options:"
 echo "  CUDA   : $HAVECUDA"
 echo "  Matlab : $HAVEMATLAB"
+echo "  Octave : $HAVEOCTAVE"
 echo "  Python : $HAVEPYTHON"
 echo
 echo "  prefix : $prefix"
-- 
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