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jLynx 2023-05-19 08:16:05 +12:00 • committed by GitHub
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commit 033c4e9a5b
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312
firmware/baseband/dsp_decimate.hpp
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@ -37,228 +37,210 @@ namespace dsp {
namespace decimate {
class Complex8DecimateBy2CIC3 {
public:
buffer_c16_t execute(
const buffer_c8_t& src,
const buffer_c16_t& dst
);
public:
buffer_c16_t execute(
const buffer_c8_t& src,
const buffer_c16_t& dst);
private:
uint32_t _i1_i0 { 0 };
uint32_t _q1_q0 { 0 };
private:
uint32_t _i1_i0{0};
uint32_t _q1_q0{0};
};
class TranslateByFSOver4AndDecimateBy2CIC3 {
public:
buffer_c16_t execute(
const buffer_c8_t& src,
const buffer_c16_t& dst
);
public:
buffer_c16_t execute(
const buffer_c8_t& src,
const buffer_c16_t& dst);
private:
uint32_t _q1_i0 { 0 };
uint32_t _q0_i1 { 0 };
private:
uint32_t _q1_i0{0};
uint32_t _q0_i1{0};
};
class DecimateBy2CIC3 {
public:
buffer_c16_t execute(
const buffer_c16_t& src,
const buffer_c16_t& dst
);
public:
buffer_c16_t execute(
const buffer_c16_t& src,
const buffer_c16_t& dst);
private:
uint32_t _iq0 { 0 };
uint32_t _iq1 { 0 };
private:
uint32_t _iq0{0};
uint32_t _iq1{0};
};
class FIR64AndDecimateBy2Real {
public:
static constexpr size_t taps_count = 64;
public:
static constexpr size_t taps_count = 64;
void configure(
const std::array<int16_t, taps_count>& taps
);
void configure(
const std::array<int16_t, taps_count>& taps);
buffer_s16_t execute(
const buffer_s16_t& src,
const buffer_s16_t& dst
);
buffer_s16_t execute(
const buffer_s16_t& src,
const buffer_s16_t& dst);
private:
std::array<int16_t, taps_count + 2> z { };
std::array<int16_t, taps_count> taps { };
private:
std::array<int16_t, taps_count + 2> z{};
std::array<int16_t, taps_count> taps{};
};
class FIRC8xR16x24FS4Decim4 {
public:
static constexpr size_t taps_count = 24;
static constexpr size_t decimation_factor = 4;
public:
static constexpr size_t taps_count = 24;
static constexpr size_t decimation_factor = 4;
using sample_t = complex8_t;
using tap_t = int16_t;
using sample_t = complex8_t;
using tap_t = int16_t;
enum class Shift : bool {
Down = true,
Up = false
};
enum class Shift : bool {
Down = true,
Up = false
};
void configure(
const std::array<tap_t, taps_count>& taps,
const int32_t scale,
const Shift shift = Shift::Down
);
void configure(
const std::array<tap_t, taps_count>& taps,
const int32_t scale,
const Shift shift = Shift::Down);
buffer_c16_t execute(
const buffer_c8_t& src,
const buffer_c16_t& dst
);
private:
std::array<vec2_s16, taps_count - decimation_factor> z_ { };
std::array<tap_t, taps_count> taps_ { };
int32_t output_scale = 0;
buffer_c16_t execute(
const buffer_c8_t& src,
const buffer_c16_t& dst);
private:
std::array<vec2_s16, taps_count - decimation_factor> z_{};
std::array<tap_t, taps_count> taps_{};
int32_t output_scale = 0;
};
class FIRC8xR16x24FS4Decim8 {
public:
static constexpr size_t taps_count = 24;
static constexpr size_t decimation_factor = 8;
public:
static constexpr size_t taps_count = 24;
static constexpr size_t decimation_factor = 8;
using sample_t = complex8_t;
using tap_t = int16_t;
using sample_t = complex8_t;
using tap_t = int16_t;
enum class Shift : bool {
Down = true,
Up = false
};
enum class Shift : bool {
Down = true,
Up = false
};
void configure(
const std::array<tap_t, taps_count>& taps,
const int32_t scale,
const Shift shift = Shift::Down
);
void configure(
const std::array<tap_t, taps_count>& taps,
const int32_t scale,
const Shift shift = Shift::Down);
buffer_c16_t execute(
const buffer_c8_t& src,
const buffer_c16_t& dst
);
private:
std::array<vec2_s16, taps_count - decimation_factor> z_ { };
std::array<tap_t, taps_count> taps_ { };
int32_t output_scale = 0;
buffer_c16_t execute(
const buffer_c8_t& src,
const buffer_c16_t& dst);
private:
std::array<vec2_s16, taps_count - decimation_factor> z_{};
std::array<tap_t, taps_count> taps_{};
int32_t output_scale = 0;
};
class FIRC16xR16x16Decim2 {
public:
static constexpr size_t taps_count = 16;
static constexpr size_t decimation_factor = 2;
public:
static constexpr size_t taps_count = 16;
static constexpr size_t decimation_factor = 2;
using sample_t = complex16_t;
using tap_t = int16_t;
using sample_t = complex16_t;
using tap_t = int16_t;
void configure(
const std::array<tap_t, taps_count>& taps,
const int32_t scale
);
void configure(
const std::array<tap_t, taps_count>& taps,
const int32_t scale);
buffer_c16_t execute(
const buffer_c16_t& src,
const buffer_c16_t& dst
);
private:
std::array<vec2_s16, taps_count - decimation_factor> z_ { };
std::array<tap_t, taps_count> taps_ { };
int32_t output_scale = 0;
buffer_c16_t execute(
const buffer_c16_t& src,
const buffer_c16_t& dst);
private:
std::array<vec2_s16, taps_count - decimation_factor> z_{};
std::array<tap_t, taps_count> taps_{};
int32_t output_scale = 0;
};
class FIRC16xR16x32Decim8 {
public:
static constexpr size_t taps_count = 32;
static constexpr size_t decimation_factor = 8;
public:
static constexpr size_t taps_count = 32;
static constexpr size_t decimation_factor = 8;
using sample_t = complex16_t;
using tap_t = int16_t;
using sample_t = complex16_t;
using tap_t = int16_t;
void configure(
const std::array<tap_t, taps_count>& taps,
const int32_t scale
);
void configure(
const std::array<tap_t, taps_count>& taps,
const int32_t scale);
buffer_c16_t execute(
const buffer_c16_t& src,
const buffer_c16_t& dst
);
private:
std::array<vec2_s16, taps_count - decimation_factor> z_ { };
std::array<tap_t, taps_count> taps_ { };
int32_t output_scale = 0;
buffer_c16_t execute(
const buffer_c16_t& src,
const buffer_c16_t& dst);
private:
std::array<vec2_s16, taps_count - decimation_factor> z_{};
std::array<tap_t, taps_count> taps_{};
int32_t output_scale = 0;
};
class FIRAndDecimateComplex {
public:
using sample_t = complex16_t;
using tap_t = complex16_t;
public:
using sample_t = complex16_t;
using tap_t = complex16_t;
using taps_t = tap_t[];
using taps_t = tap_t[];
/* NOTE! Current code makes an assumption that block of samples to be
* processed will be a multiple of the taps_count.
*/
/* NOTE! Current code makes an assumption that block of samples to be
* processed will be a multiple of the taps_count.
*/
template<typename T>
void configure(
const T& taps,
const size_t decimation_factor
) {
configure(taps.data(), taps.size(), decimation_factor);
}
template <typename T>
void configure(
const T& taps,
const size_t decimation_factor) {
configure(taps.data(), taps.size(), decimation_factor);
}
buffer_c16_t execute(
const buffer_c16_t& src,
const buffer_c16_t& dst
);
private:
using samples_t = sample_t[];
buffer_c16_t execute(
const buffer_c16_t& src,
const buffer_c16_t& dst);
std::unique_ptr<samples_t> samples_ { };
std::unique_ptr<taps_t> taps_reversed_ { };
size_t taps_count_ { 0 };
size_t decimation_factor_ { 1 };
private:
using samples_t = sample_t[];
template<typename T>
void configure(
const T* const taps,
const size_t taps_count,
const size_t decimation_factor
) {
configure_common(taps_count, decimation_factor);
std::reverse_copy(&taps[0], &taps[taps_count], &taps_reversed_[0]);
}
std::unique_ptr<samples_t> samples_{};
std::unique_ptr<taps_t> taps_reversed_{};
size_t taps_count_{0};
size_t decimation_factor_{1};
void configure_common(
const size_t taps_count,
const size_t decimation_factor
);
template <typename T>
void configure(
const T* const taps,
const size_t taps_count,
const size_t decimation_factor) {
configure_common(taps_count, decimation_factor);
std::reverse_copy(&taps[0], &taps[taps_count], &taps_reversed_[0]);
}
void configure_common(
const size_t taps_count,
const size_t decimation_factor);
};
class DecimateBy2CIC4Real {
public:
buffer_s16_t execute(
const buffer_s16_t& src,
const buffer_s16_t& dst
);
public:
buffer_s16_t execute(
const buffer_s16_t& src,
const buffer_s16_t& dst);
private:
int16_t z[5] { };
int16_t _dummy { }; // TODO: Addresses GCC bug when constructing a class that's not sizeof() % 4 == 0?
private:
int16_t z[5]{};
int16_t _dummy{}; // TODO: Addresses GCC bug when constructing a class that's not sizeof() % 4 == 0?
};
} /* namespace decimate */
} /* namespace dsp */
#endif/*__DSP_DECIMATE_H__*/
#endif /*__DSP_DECIMATE_H__*/