diff options
Diffstat (limited to 'gr-dtv/lib/dvbt/dvbt_viterbi_decoder_impl.h')
| -rw-r--r-- | gr-dtv/lib/dvbt/dvbt_viterbi_decoder_impl.h | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/gr-dtv/lib/dvbt/dvbt_viterbi_decoder_impl.h b/gr-dtv/lib/dvbt/dvbt_viterbi_decoder_impl.h index 8870a79dcf..22b040cd3f 100644 --- a/gr-dtv/lib/dvbt/dvbt_viterbi_decoder_impl.h +++ b/gr-dtv/lib/dvbt/dvbt_viterbi_decoder_impl.h @@ -23,7 +23,10 @@ #include <gnuradio/dtv/dvbt_viterbi_decoder.h> #include "dvbt_configure.h" + +#ifdef DTV_SSE2 #include <xmmintrin.h> +#endif /* The two generator polynomials for the NASA Standard K=7 code. * Since these polynomials are known to be optimal for this constraint @@ -35,10 +38,16 @@ // Maximum number of traceback bytes #define TRACEBACK_MAX 24 +#ifdef DTV_SSE2 union branchtab27 { unsigned char c[32]; __m128i v[2]; }; +#else +struct branchtab27 { + unsigned char c[32]; +}; +#endif namespace gr { namespace dtv { @@ -56,12 +65,23 @@ namespace gr { static const unsigned char d_puncture_7_8[]; static const unsigned char d_Partab[]; +#ifdef DTV_SSE2 static __m128i d_metric0[4]; static __m128i d_metric1[4]; static __m128i d_path0[4]; static __m128i d_path1[4]; - +#else + static unsigned char d_metric0_generic[64]; + static unsigned char d_metric1_generic[64]; + static unsigned char d_path0_generic[64]; + static unsigned char d_path1_generic[64]; +#endif + +#ifdef DTV_SSE2 static branchtab27 Branchtab27_sse2[2]; +#else + static branchtab27 Branchtab27_generic[2]; +#endif // Metrics for each state static unsigned char mmresult[64]; @@ -101,9 +121,15 @@ namespace gr { // Position in circular buffer where the current decoded byte is stored int store_pos; +#ifdef DTV_SSE2 void dvbt_viterbi_chunks_init_sse2(__m128i *mm0, __m128i *pp0); void dvbt_viterbi_butterfly2_sse2(unsigned char *symbols, __m128i m0[], __m128i m1[], __m128i p0[], __m128i p1[]); unsigned char dvbt_viterbi_get_output_sse2(__m128i *mm0, __m128i *pp0, int ntraceback, unsigned char *outbuf); +#else + void dvbt_viterbi_chunks_init_generic(unsigned char *mm0, unsigned char *pp0); + void dvbt_viterbi_butterfly2_generic(unsigned char *symbols, unsigned char m0[], unsigned char m1[], unsigned char p0[], unsigned char p1[]); + unsigned char dvbt_viterbi_get_output_generic(unsigned char *mm0, unsigned char *pp0, int ntraceback, unsigned char *outbuf); +#endif public: dvbt_viterbi_decoder_impl(dvb_constellation_t constellation, \ |