2 files changed, 135 insertions, 0 deletions
diff --git a/gr-digital/lib/CMakeLists.txt b/gr-digital/lib/CMakeLists.txt
index f62673ccd..bd4f1a500 100644
--- a/gr-digital/lib/CMakeLists.txt
+++ b/gr-digital/lib/CMakeLists.txt
@@ -23,15 +23,74 @@
 include_directories(
     ${GNURADIO_CORE_INCLUDE_DIRS}
     ${GR_DIGITAL_INCLUDE_DIRS}
+    ${CMAKE_CURRENT_BINARY_DIR}/../include
 )
 
 include_directories(${Boost_INCLUDE_DIRS})
 link_directories(${Boost_LIBRARY_DIRS})
 
+
+########################################################################
+# generate helper scripts to expand templated files
+########################################################################
+include(GrPython)
+
+file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/generate_helper.py "
+#!${PYTHON_EXECUTABLE}
+
+import sys, os, re
+sys.path.append('${GR_CORE_PYTHONPATH}')
+os.environ['srcdir'] = '${CMAKE_CURRENT_SOURCE_DIR}'
+os.chdir('${CMAKE_CURRENT_BINARY_DIR}')
+
+if __name__ == '__main__':
+    import build_utils
+    root, inp = sys.argv[1:3]
+    for sig in sys.argv[3:]:
+        name = re.sub ('X+', sig, root)
+        d = build_utils.standard_dict(name, sig, 'digital')
+        build_utils.expand_template(d, inp)
+
+")
+
+macro(expand_cc root)
+  #make a list of all the generated files
+  unset(expanded_files_cc)
+  unset(expanded_files_h)
+  foreach(sig ${ARGN})
+    string(REGEX REPLACE "X+" ${sig} name ${root})
+    list(APPEND expanded_files_cc ${CMAKE_CURRENT_BINARY_DIR}/${name}.cc)
+    list(APPEND expanded_files_h ${CMAKE_CURRENT_BINARY_DIR}/../include/${name}.h)
+  endforeach(sig)
+  
+  #create a command to generate the files
+  add_custom_command(
+    OUTPUT ${expanded_files_cc}
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${root}.cc.t
+    COMMAND ${PYTHON_EXECUTABLE} ${PYTHON_DASH_B}
+    ${CMAKE_CURRENT_BINARY_DIR}/generate_helper.py
+    ${root} ${root}.cc.t ${ARGN}
+  )
+  
+  #make source files depends on headers to force generation
+  set_source_files_properties(${expanded_files_cc}
+    PROPERTIES OBJECT_DEPENDS "${expanded_files_h}"
+  )
+  
+  #install rules for the generated cc files
+  list(APPEND generated_sources ${expanded_files_cc})  
+endmacro(expand_cc)
+
+########################################################################
+# Invoke macro to generate various sources
+########################################################################
+expand_cc(digital_chunks_to_symbols_XX         bf bc sf sc if ic)
+
 ########################################################################
 # Setup library
 ########################################################################
 list(APPEND gr_digital_sources
+    ${generated_sources}
     digital_impl_glfsr.cc
     digital_impl_mpsk_snr_est.cc
     digital_additive_scrambler_bb.cc
@@ -86,3 +145,5 @@ list(APPEND digital_libs
 add_library(gnuradio-digital SHARED ${gr_digital_sources})
 target_link_libraries(gnuradio-digital ${digital_libs})
 GR_LIBRARY_FOO(gnuradio-digital RUNTIME_COMPONENT "digital_runtime" DEVEL_COMPONENT "digital_devel")
+
+add_dependencies(gnuradio-digital digital_generated_includes digital_generated_swigs)
diff --git a/gr-digital/lib/digital_chunks_to_symbols_XX.cc.t b/gr-digital/lib/digital_chunks_to_symbols_XX.cc.t
new file mode 100644
index 000000000..399a474a6
--- /dev/null
+++ b/gr-digital/lib/digital_chunks_to_symbols_XX.cc.t
@@ -0,0 +1,74 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2010,2012 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+// @WARNING@
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <@NAME@.h>
+#include <gr_io_signature.h>
+#include <assert.h>
+#include <iostream>
+#include <string.h>
+
+@SPTR_NAME@
+digital_make_@BASE_NAME@ (const std::vector<@O_TYPE@> &symbol_table, const int D)
+{
+  return gnuradio::get_initial_sptr (new @NAME@ (symbol_table,D));
+}
+
+@NAME@::@NAME@ (const std::vector<@O_TYPE@> &symbol_table, const int D)
+  : gr_sync_interpolator ("@BASE_NAME@",
+			  gr_make_io_signature (1, -1, sizeof (@I_TYPE@)),
+			  gr_make_io_signature (1, -1, sizeof (@O_TYPE@)),
+			  D),
+  d_D (D),
+  d_symbol_table (symbol_table)
+{
+}
+
+int
+@NAME@::work (int noutput_items,
+			gr_vector_const_void_star &input_items,
+			gr_vector_void_star &output_items)
+{
+  assert (noutput_items % d_D == 0);
+  assert (input_items.size() == output_items.size());
+  int nstreams = input_items.size();
+
+  for (int m=0;m<nstreams;m++) {
+    const @I_TYPE@ *in = (@I_TYPE@ *) input_items[m];
+    @O_TYPE@ *out = (@O_TYPE@ *) output_items[m];
+
+    // per stream processing
+    for (int i = 0; i < noutput_items / d_D; i++){
+      assert (((unsigned int)in[i]*d_D+d_D) <= d_symbol_table.size());
+      memcpy(out, &d_symbol_table[(unsigned int)in[i]*d_D], d_D*sizeof(@O_TYPE@));
+      out+=d_D;
+    }
+    // end of per stream processing
+
+  }
+  return noutput_items;
+}