diff options
Diffstat (limited to 'gnuradio-runtime/include/gnuradio/fxpt.h')
| -rw-r--r-- | gnuradio-runtime/include/gnuradio/fxpt.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gnuradio-runtime/include/gnuradio/fxpt.h b/gnuradio-runtime/include/gnuradio/fxpt.h index ded32ed36e..abddfc1f52 100644 --- a/gnuradio-runtime/include/gnuradio/fxpt.h +++ b/gnuradio-runtime/include/gnuradio/fxpt.h @@ -45,6 +45,7 @@ namespace gr { static const int NBITS = 10; static const float s_sine_table[1 << NBITS][2]; static const float PI; + static const float TAU; static const float TWO_TO_THE_31; public: @@ -52,8 +53,8 @@ namespace gr { float_to_fixed(float x) { // Fold x into -PI to PI. - int d = (int)floor(x/2/PI+0.5); - x -= d*2*PI; + int d = (int)floorf(x/TAU+0.5); + x -= d*TAU; // And convert to an integer. return (int32_t) ((float) x * TWO_TO_THE_31 / PI); } |