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Remove garbage DSP filter code.

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This commit is contained in:
Jared Boone 2015-12-28 15:49:47 -08:00
parent ccc3402869
commit 49215c3ae6
2 changed files with 0 additions and 175 deletions
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70
firmware/baseband/dsp_decimate.cpp
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@ -385,76 +385,6 @@ buffer_s16_t DecimateBy2CIC4Real::execute(
return { dst.p, src.count / 2, src.sampling_rate / 2 };
}
#if 0
buffer_c16_t DecimateBy2HBF5Complex::execute(
buffer_c16_t const src,
buffer_c16_t const dst
) {
auto src_p = src.p;
auto dst_p = dst.p;
int32_t n = src.count;
for(; n>0; n-=2) {
/* TODO: Probably a lot of room to optimize... */
z[0] = z[2];
//z[1] = z[3];
z[2] = z[4];
//z[3] = z[5];
z[4] = z[6];
z[5] = z[7];
z[6] = z[8];
z[7] = z[9];
z[8] = z[10];
z[9] = *(src_p++);
z[10] = *(src_p++);
int32_t t_real { z[5].real * 256 };
int32_t t_imag { z[5].imag * 256 };
t_real += (z[ 0].real + z[10].real) * 3;
t_imag += (z[ 0].imag + z[10].imag) * 3;
t_real -= (z[ 2].real + z[ 8].real) * 25;
t_imag -= (z[ 2].imag + z[ 8].imag) * 25;
t_real += (z[ 4].real + z[ 6].real) * 150;
t_imag += (z[ 4].imag + z[ 6].imag) * 150;
*(dst_p++) = { t_real / 256, t_imag / 256 };
}
return { dst.p, src.count / 2, src.sampling_rate / 2 };
}
buffer_c16_t DecimateBy2HBF7Complex::execute(
buffer_c16_t const src,
buffer_c16_t const dst
) {
auto src_p = src.p;
auto dst_p = dst.p;
int32_t n = src.count;
for(; n>0; n-=2) {
/* TODO: Probably a lot of room to optimize... */
z[0] = z[2];
//z[1] = z[3];
z[2] = z[4];
//z[3] = z[5];
z[4] = z[6];
z[5] = z[7];
z[6] = z[8];
z[7] = z[9];
z[8] = z[10];
z[9] = *(src_p++);
z[10] = *(src_p++);
int32_t t_real { z[5].real * 512 };
int32_t t_imag { z[5].imag * 512 };
t_real += (z[ 0].real + z[10].real) * 7;
t_imag += (z[ 0].imag + z[10].imag) * 7;
t_real -= (z[ 2].real + z[ 8].real) * 53;
t_imag -= (z[ 2].imag + z[ 8].imag) * 53;
t_real += (z[ 4].real + z[ 6].real) * 302;
t_imag += (z[ 4].imag + z[ 6].imag) * 302;
*(dst_p++) = { t_real / 512, t_imag / 512 };
}
return { dst.p, src.count / 2, src.sampling_rate / 2 };
}
#endif
} /* namespace decimate */
} /* namespace dsp */