Merge branch 'maint'

6 files changed, 39 insertions, 6 deletions

diff --git a/gnuradio-core/src/lib/filter/gri_fft_filter_ccc_generic.cc b/gnuradio-core/src/lib/filter/gri_fft_filter_ccc_generic.cc
index c894d62aa..1a9273af0 100644
--- a/gnuradio-core/src/lib/filter/gri_fft_filter_ccc_generic.cc
+++ b/gnuradio-core/src/lib/filter/gri_fft_filter_ccc_generic.cc
@@ -45,6 +45,7 @@ gri_fft_filter_ccc_generic::~gri_fft_filter_ccc_generic ()
 {
   delete d_fwdfft;
   delete d_invfft;
+  gri_fft_free(d_xformed_taps);
 }
 
 #if 0
@@ -115,7 +116,7 @@ gri_fft_filter_ccc_generic::compute_sizes(int ntaps)
     delete d_invfft;
     d_fwdfft = new gri_fft_complex(d_fftsize, true, d_nthreads);
     d_invfft = new gri_fft_complex(d_fftsize, false, d_nthreads);
-    d_xformed_taps.resize(d_fftsize);
+    d_xformed_taps = gri_fft_malloc_complex(d_fftsize);
   }
 }
 
@@ -152,7 +153,7 @@ gri_fft_filter_ccc_generic::filter (int nitems, const gr_complex *input, gr_comp
     d_fwdfft->execute();	// compute fwd xform
     
     gr_complex *a = d_fwdfft->get_outbuf();
-    gr_complex *b = &d_xformed_taps[0];
+    gr_complex *b = d_xformed_taps;
     gr_complex *c = d_invfft->get_inbuf();
 
     volk_32fc_x2_multiply_32fc_a(c, a, b, d_fftsize);
diff --git a/gnuradio-core/src/lib/filter/gri_fft_filter_ccc_generic.h b/gnuradio-core/src/lib/filter/gri_fft_filter_ccc_generic.h
index 217b9ab83..899b59e03 100644
--- a/gnuradio-core/src/lib/filter/gri_fft_filter_ccc_generic.h
+++ b/gnuradio-core/src/lib/filter/gri_fft_filter_ccc_generic.h
@@ -44,8 +44,8 @@ class GR_CORE_API gri_fft_filter_ccc_generic
   gri_fft_complex	  *d_invfft;		// inverse "plan"
   int                      d_nthreads;          // number of FFTW threads to use
   std::vector<gr_complex>  d_tail;		// state carried between blocks for overlap-add
-  std::vector<gr_complex>  d_xformed_taps;	// Fourier xformed taps
   std::vector<gr_complex>  d_new_taps;
+  gr_complex              *d_xformed_taps;	// Fourier xformed taps
 
   void compute_sizes(int ntaps);
   int tailsize() const { return d_ntaps - 1; }
diff --git a/gnuradio-core/src/lib/filter/gri_fft_filter_fff_generic.cc b/gnuradio-core/src/lib/filter/gri_fft_filter_fff_generic.cc
index e7f66b714..0989c9621 100644
--- a/gnuradio-core/src/lib/filter/gri_fft_filter_fff_generic.cc
+++ b/gnuradio-core/src/lib/filter/gri_fft_filter_fff_generic.cc
@@ -44,6 +44,7 @@ gri_fft_filter_fff_generic::~gri_fft_filter_fff_generic ()
 {
   delete d_fwdfft;
   delete d_invfft;
+  gri_fft_free(d_xformed_taps);
 }
 
 /*
@@ -102,7 +103,7 @@ gri_fft_filter_fff_generic::compute_sizes(int ntaps)
     delete d_invfft;
     d_fwdfft = new gri_fft_real_fwd(d_fftsize);
     d_invfft = new gri_fft_real_rev(d_fftsize);
-    d_xformed_taps.resize(d_fftsize/2+1);
+    d_xformed_taps = gri_fft_malloc_complex(d_fftsize/2+1);
   }
 }
 
@@ -139,7 +140,7 @@ gri_fft_filter_fff_generic::filter (int nitems, const float *input, float *outpu
     d_fwdfft->execute();	// compute fwd xform
 
     gr_complex *a = d_fwdfft->get_outbuf();
-    gr_complex *b = &d_xformed_taps[0];
+    gr_complex *b = d_xformed_taps;
     gr_complex *c = d_invfft->get_inbuf();
 
     volk_32fc_x2_multiply_32fc_a(c, a, b, d_fftsize/2+1);
diff --git a/gnuradio-core/src/lib/filter/gri_fft_filter_fff_generic.h b/gnuradio-core/src/lib/filter/gri_fft_filter_fff_generic.h
index be31068aa..6ac30cef5 100644
--- a/gnuradio-core/src/lib/filter/gri_fft_filter_fff_generic.h
+++ b/gnuradio-core/src/lib/filter/gri_fft_filter_fff_generic.h
@@ -41,8 +41,8 @@ class GR_CORE_API gri_fft_filter_fff_generic
   gri_fft_real_rev	  *d_invfft;		// inverse "plan"
   int                      d_nthreads;          // number of FFTW threads to use
   std::vector<float>       d_tail;		// state carried between blocks for overlap-add
-  std::vector<gr_complex>  d_xformed_taps;	// Fourier xformed taps
   std::vector<float>	   d_new_taps;
+  gr_complex              *d_xformed_taps;	// Fourier xformed taps
 
 
   void compute_sizes(int ntaps);
diff --git a/gnuradio-core/src/lib/general/gri_fft.cc b/gnuradio-core/src/lib/general/gri_fft.cc
index 63e307776..2edb5f5aa 100644
--- a/gnuradio-core/src/lib/general/gri_fft.cc
+++ b/gnuradio-core/src/lib/general/gri_fft.cc
@@ -47,6 +47,24 @@ static int my_fftw_read_char(void *f) { return fgetc((FILE *) f); }
 #include <boost/filesystem/path.hpp>
 namespace fs = boost::filesystem;
 
+gr_complex *
+gri_fft_malloc_complex(int size)
+{
+  return (gr_complex*)fftwf_malloc(sizeof(gr_complex)*size);
+}
+
+float *
+gri_fft_malloc_float(int size)
+{
+  return (float*)fftwf_malloc(sizeof(float)*size);
+}
+
+void
+gri_fft_free(void *b)
+{
+  fftwf_free(b);
+}
+
 boost::mutex &
 gri_fft_planner::mutex()
 {
diff --git a/gnuradio-core/src/lib/general/gri_fft.h b/gnuradio-core/src/lib/general/gri_fft.h
index ed80badf1..f77a18e52 100644
--- a/gnuradio-core/src/lib/general/gri_fft.h
+++ b/gnuradio-core/src/lib/general/gri_fft.h
@@ -30,6 +30,19 @@
 #include <gr_complex.h>
 #include <boost/thread.hpp>
 
+/*! \brief Helper function for allocating complex fft buffers
+ */
+gr_complex* gri_fft_malloc_complex(int size);
+
+/*! \brief Helper function for allocating float fft buffers
+ */
+float* gri_fft_malloc_float(int size);
+
+/*! \brief Helper function for freeing fft buffers
+ */
+void gri_fft_free(void *b);
+
+
 /*!
  * \brief Export reference to planner mutex for those apps that
  * want to use FFTW w/o using the gri_fftw* classes.