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Avoid pointer arithmetics

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This commit is contained in:
Carles Fernandez
2019-06-29 12:55:39 +02:00
parent dd53f81b1a
commit d6714e35a1
6 changed files with 112 additions and 112 deletions
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23
src/algorithms/libs/galileo_e1_signal_processing.cc
View File

@@ -53,7 +53,7 @@ void galileo_e1_code_gen_int(gsl::span<int> _dest, std::array<char, 3> _Signal,
{
for (char i : GALILEO_E1_B_PRIMARY_CODE[prn])
{
hex_to_binary_converter(&_dest[index], i);
hex_to_binary_converter(_dest.subspan(index, 4), i);
index += 4;
}
}
@@ -61,7 +61,7 @@ void galileo_e1_code_gen_int(gsl::span<int> _dest, std::array<char, 3> _Signal,
{
for (char i : GALILEO_E1_C_PRIMARY_CODE[prn])
{
hex_to_binary_converter(&_dest[index], i);
hex_to_binary_converter(_dest.subspan(index, 4), i);
index += 4;
}
}
@@ -175,7 +175,7 @@ void galileo_e1_code_gen_float_sampled(gsl::span<float> _dest, std::array<char,
_codeLength = _samplesPerChip * GALILEO_E1_B_CODE_LENGTH_CHIPS;
_signal_E1 = new float[_codeLength];
gsl::span<float> _signal_E1_span(_signal_E1, _codeLength);
if (_cboc == true)
{
galileo_e1_gen_float(gsl::span<float>(_signal_E1, _codeLength), gsl::span<int>(primary_code_E1_chips, static_cast<uint32_t>(GALILEO_E1_B_CODE_LENGTH_CHIPS)), _Signal); // generate cboc 12 samples per chip
@@ -183,11 +183,12 @@ void galileo_e1_code_gen_float_sampled(gsl::span<float> _dest, std::array<char,
else
{
auto* _signal_E1_int = static_cast<int32_t*>(volk_gnsssdr_malloc(_codeLength * sizeof(int32_t), volk_gnsssdr_get_alignment()));
gsl::span<int32_t> _signal_E1_int_span(_signal_E1_int, _codeLength);
galileo_e1_sinboc_11_gen_int(gsl::span<int32_t>(_signal_E1_int, _codeLength), gsl::span<int>(primary_code_E1_chips, static_cast<uint32_t>(GALILEO_E1_B_CODE_LENGTH_CHIPS))); // generate sinboc(1,1) 2 samples per chip
for (uint32_t ii = 0; ii < _codeLength; ++ii)
{
_signal_E1[ii] = static_cast<float>(_signal_E1_int[ii]);
_signal_E1_span[ii] = static_cast<float>(_signal_E1_int_span[ii]);
}
volk_gnsssdr_free(_signal_E1_int);
}
@@ -205,24 +206,24 @@ void galileo_e1_code_gen_float_sampled(gsl::span<float> _dest, std::array<char,
if (_galileo_signal.rfind("1C") != std::string::npos && _galileo_signal.length() >= 2 && _secondary_flag)
{
auto* _signal_E1C_secondary = new float[static_cast<int32_t>(GALILEO_E1_C_SECONDARY_CODE_LENGTH) * _samplesPerCode];
gsl::span<float> _signal_E1C_secondary_span(_signal_E1C_secondary, static_cast<int32_t>(GALILEO_E1_C_SECONDARY_CODE_LENGTH) * _samplesPerCode);
for (uint32_t i = 0; i < static_cast<uint32_t>(GALILEO_E1_C_SECONDARY_CODE_LENGTH); i++)
{
for (unsigned k = 0; k < _samplesPerCode; k++)
{
_signal_E1C_secondary[i * _samplesPerCode + k] = _signal_E1[k] * (GALILEO_E1_C_SECONDARY_CODE.at(i) == '0' ? 1.0f : -1.0f);
_signal_E1C_secondary_span[i * _samplesPerCode + k] = _signal_E1_span[k] * (GALILEO_E1_C_SECONDARY_CODE.at(i) == '0' ? 1.0f : -1.0f);
}
}
_samplesPerCode *= static_cast<int32_t>(GALILEO_E1_C_SECONDARY_CODE_LENGTH);
delete[] _signal_E1;
_signal_E1 = _signal_E1C_secondary;
_signal_E1 = _signal_E1C_secondary_span.data();
}
for (uint32_t i = 0; i < _samplesPerCode; i++)
{
_dest[(i + delay) % _samplesPerCode] = _signal_E1[i];
_dest[(i + delay) % _samplesPerCode] = _signal_E1_span[i];
}
delete[] _signal_E1;
@@ -245,12 +246,12 @@ void galileo_e1_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, s
}
auto* real_code = static_cast<float*>(volk_gnsssdr_malloc(_samplesPerCode * sizeof(float), volk_gnsssdr_get_alignment()));
galileo_e1_code_gen_float_sampled(gsl::span<float>(real_code, _samplesPerCode), _Signal, _cboc, _prn, _fs, _chip_shift, _secondary_flag);
gsl::span<float> real_code_span(real_code, _samplesPerCode);
galileo_e1_code_gen_float_sampled(real_code_span, _Signal, _cboc, _prn, _fs, _chip_shift, _secondary_flag);
for (uint32_t ii = 0; ii < _samplesPerCode; ++ii)
{
_dest[ii] = std::complex<float>(real_code[ii], 0.0f);
_dest[ii] = std::complex<float>(real_code_span[ii], 0.0f);
}
volk_gnsssdr_free(real_code);
}

8
src/algorithms/libs/galileo_e5_signal_processing.cc
View File

@@ -109,8 +109,8 @@ void galileo_e5_a_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest,
const int32_t _codeFreqBasis = GALILEO_E5A_CODE_CHIP_RATE_HZ;
auto* _code = new std::complex<float>[_codeLength]();
galileo_e5_a_code_gen_complex_primary(gsl::span<std::complex<float>>(_code, _codeLength), _prn, _Signal);
gsl::span<std::complex<float>> _code_span(_code, _codeLength);
galileo_e5_a_code_gen_complex_primary(_code_span, _prn, _Signal);
_samplesPerCode = static_cast<uint32_t>(static_cast<double>(_fs) / (static_cast<double>(_codeFreqBasis) / static_cast<double>(_codeLength)));
@@ -122,14 +122,14 @@ void galileo_e5_a_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest,
if (posix_memalign(reinterpret_cast<void**>(&_resampled_signal), 16, _samplesPerCode * sizeof(gr_complex)) == 0)
{
};
resampler(gsl::span<std::complex<float>>(_code, _codeLength), gsl::span<std::complex<float>>(_resampled_signal, _samplesPerCode), _codeFreqBasis, _fs); // resamples code to fs
resampler(_code_span, gsl::span<std::complex<float>>(_resampled_signal, _samplesPerCode), _codeFreqBasis, _fs); // resamples code to fs
delete[] _code;
_code = _resampled_signal;
}
for (uint32_t i = 0; i < _samplesPerCode; i++)
{
_dest[(i + delay) % _samplesPerCode] = _code[i];
_dest[(i + delay) % _samplesPerCode] = _code_span[i];
}
if (_fs != _codeFreqBasis)
{

130
src/algorithms/libs/gnss_signal_processing.cc
View File

@@ -54,105 +54,105 @@ void complex_exp_gen_conj(gsl::span<std::complex<float>> _dest, double _f, doubl
}
void hex_to_binary_converter(int32_t* _dest, char _from)
void hex_to_binary_converter(gsl::span<int32_t> _dest, char _from)
{
switch (_from)
{
case '0':
*(_dest) = 1;
*(_dest + 1) = 1;
*(_dest + 2) = 1;
*(_dest + 3) = 1;
_dest[0] = 1;
_dest[1] = 1;
_dest[2] = 1;
_dest[3] = 1;
break;
case '1':
*(_dest) = 1;
*(_dest + 1) = 1;
*(_dest + 2) = 1;
*(_dest + 3) = -1;
_dest[0] = 1;
_dest[1] = 1;
_dest[2] = 1;
_dest[3] = -1;
break;
case '2':
*(_dest) = 1;
*(_dest + 1) = 1;
*(_dest + 2) = -1;
*(_dest + 3) = 1;
_dest[0] = 1;
_dest[1] = 1;
_dest[2] = -1;
_dest[3] = 1;
break;
case '3':
*(_dest) = 1;
*(_dest + 1) = 1;
*(_dest + 2) = -1;
*(_dest + 3) = -1;
_dest[0] = 1;
_dest[1] = 1;
_dest[2] = -1;
_dest[3] = -1;
break;
case '4':
*(_dest) = 1;
*(_dest + 1) = -1;
*(_dest + 2) = 1;
*(_dest + 3) = 1;
_dest[0] = 1;
_dest[1] = -1;
_dest[2] = 1;
_dest[3] = 1;
break;
case '5':
*(_dest) = 1;
*(_dest + 1) = -1;
*(_dest + 2) = 1;
*(_dest + 3) = -1;
_dest[0] = 1;
_dest[1] = -1;
_dest[2] = 1;
_dest[3] = -1;
break;
case '6':
*(_dest) = 1;
*(_dest + 1) = -1;
*(_dest + 2) = -1;
*(_dest + 3) = 1;
_dest[0] = 1;
_dest[1] = -1;
_dest[2] = -1;
_dest[3] = 1;
break;
case '7':
*(_dest) = 1;
*(_dest + 1) = -1;
*(_dest + 2) = -1;
*(_dest + 3) = -1;
_dest[0] = 1;
_dest[1] = -1;
_dest[2] = -1;
_dest[3] = -1;
break;
case '8':
*(_dest) = -1;
*(_dest + 1) = 1;
*(_dest + 2) = 1;
*(_dest + 3) = 1;
_dest[0] = -1;
_dest[1] = 1;
_dest[2] = 1;
_dest[3] = 1;
break;
case '9':
*(_dest) = -1;
*(_dest + 1) = 1;
*(_dest + 2) = 1;
*(_dest + 3) = -1;
_dest[0] = -1;
_dest[1] = 1;
_dest[2] = 1;
_dest[3] = -1;
break;
case 'A':
*(_dest) = -1;
*(_dest + 1) = 1;
*(_dest + 2) = -1;
*(_dest + 3) = 1;
_dest[0] = -1;
_dest[1] = 1;
_dest[2] = -1;
_dest[3] = 1;
break;
case 'B':
*(_dest) = -1;
*(_dest + 1) = 1;
*(_dest + 2) = -1;
*(_dest + 3) = -1;
_dest[0] = -1;
_dest[1] = 1;
_dest[2] = -1;
_dest[3] = -1;
break;
case 'C':
*(_dest) = -1;
*(_dest + 1) = -1;
*(_dest + 2) = 1;
*(_dest + 3) = 1;
_dest[0] = -1;
_dest[1] = -1;
_dest[2] = 1;
_dest[3] = 1;
break;
case 'D':
*(_dest) = -1;
*(_dest + 1) = -1;
*(_dest + 2) = 1;
*(_dest + 3) = -1;
_dest[0] = -1;
_dest[1] = -1;
_dest[2] = 1;
_dest[3] = -1;
break;
case 'E':
*(_dest) = -1;
*(_dest + 1) = -1;
*(_dest + 2) = -1;
*(_dest + 3) = 1;
_dest[0] = -1;
_dest[1] = -1;
_dest[2] = -1;
_dest[3] = 1;
break;
case 'F':
*(_dest) = -1;
*(_dest + 1) = -1;
*(_dest + 2) = -1;
*(_dest + 3) = -1;
_dest[0] = -1;
_dest[1] = -1;
_dest[2] = -1;
_dest[3] = -1;
break;
}
}

2
src/algorithms/libs/gnss_signal_processing.h
View File

@@ -63,7 +63,7 @@ void complex_exp_gen_conj(gsl::span<std::complex<float>> _dest, double _f, doubl
* to binary (the output are 4 ints with +1 or -1 values).
*
*/
void hex_to_binary_converter(int32_t* _dest, char _from);
void hex_to_binary_converter(gsl::span<int32_t> _dest, char _from);
/*!
* \brief This function resamples a sequence of float values.

23
src/algorithms/libs/gps_l2c_signal.cc
View File

@@ -56,15 +56,15 @@ void gps_l2c_m_code(gsl::span<int32_t> _dest, uint32_t _prn)
void gps_l2c_m_code_gen_complex(gsl::span<std::complex<float>> _dest, uint32_t _prn)
{
auto* _code = new int32_t[GPS_L2_M_CODE_LENGTH_CHIPS];
gsl::span<int32_t> _code_span(_code, GPS_L2_M_CODE_LENGTH_CHIPS);
if (_prn > 0 and _prn < 51)
{
gps_l2c_m_code(gsl::span<int32_t>(_code, GPS_L2_M_CODE_LENGTH_CHIPS), _prn);
gps_l2c_m_code(_code_span, _prn);
}
for (int32_t i = 0; i < GPS_L2_M_CODE_LENGTH_CHIPS; i++)
{
_dest[i] = std::complex<float>(1.0 - 2.0 * _code[i], 0.0);
_dest[i] = std::complex<float>(1.0 - 2.0 * _code_span[i], 0.0);
}
delete[] _code;
@@ -74,15 +74,15 @@ void gps_l2c_m_code_gen_complex(gsl::span<std::complex<float>> _dest, uint32_t _
void gps_l2c_m_code_gen_float(gsl::span<float> _dest, uint32_t _prn)
{
auto* _code = new int32_t[GPS_L2_M_CODE_LENGTH_CHIPS];
gsl::span<int32_t> _code_span(_code, GPS_L2_M_CODE_LENGTH_CHIPS);
if (_prn > 0 and _prn < 51)
{
gps_l2c_m_code(gsl::span<int32_t>(_code, GPS_L2_M_CODE_LENGTH_CHIPS), _prn);
gps_l2c_m_code(_code_span, _prn);
}
for (int32_t i = 0; i < GPS_L2_M_CODE_LENGTH_CHIPS; i++)
{
_dest[i] = 1.0 - 2.0 * static_cast<float>(_code[i]);
_dest[i] = 1.0 - 2.0 * static_cast<float>(_code_span[i]);
}
delete[] _code;
@@ -95,9 +95,10 @@ void gps_l2c_m_code_gen_float(gsl::span<float> _dest, uint32_t _prn)
void gps_l2c_m_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, uint32_t _prn, int32_t _fs)
{
auto* _code = new int32_t[GPS_L2_M_CODE_LENGTH_CHIPS];
gsl::span<int32_t> _code_span(_code, GPS_L2_M_CODE_LENGTH_CHIPS);
if (_prn > 0 and _prn < 51)
{
gps_l2c_m_code(gsl::span<int32_t>(_code, GPS_L2_M_CODE_LENGTH_CHIPS), _prn);
gps_l2c_m_code(_code_span, _prn);
}
int32_t _samplesPerCode, _codeValueIndex;
@@ -112,26 +113,22 @@ void gps_l2c_m_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, ui
_ts = 1.0 / static_cast<float>(_fs); // Sampling period in sec
_tc = 1.0 / static_cast<float>(GPS_L2_M_CODE_RATE_HZ); // C/A chip period in sec
//float aux;
for (int32_t i = 0; i < _samplesPerCode; i++)
{
//=== Digitizing =======================================================
//--- Make index array to read L2C code values -------------------------
//TODO: Check this formula! Seems to start with an extra sample
_codeValueIndex = std::ceil((_ts * (static_cast<float>(i) + 1)) / _tc) - 1;
//aux = (_ts * (i + 1)) / _tc;
//_codeValueIndex = static_cast<int32_t>(static_cast<long>(aux)) - 1;
//--- Make the digitized version of the L2C code -----------------------
if (i == _samplesPerCode - 1)
{
//--- Correct the last index (due to number rounding issues) -----------
_dest[i] = std::complex<float>(1.0 - 2.0 * _code[_codeLength - 1], 0);
_dest[i] = std::complex<float>(1.0 - 2.0 * _code_span[_codeLength - 1], 0);
}
else
{
_dest[i] = std::complex<float>(1.0 - 2.0 * _code[_codeValueIndex], 0); //repeat the chip -> upsample
_dest[i] = std::complex<float>(1.0 - 2.0 * _code_span[_codeValueIndex], 0); //repeat the chip -> upsample
}
}
delete[] _code;

38
src/algorithms/libs/gps_l5_signal.cc
View File

@@ -174,15 +174,15 @@ void make_l5q(gsl::span<int32_t> _dest, int32_t prn)
void gps_l5i_code_gen_complex(gsl::span<std::complex<float>> _dest, uint32_t _prn)
{
auto* _code = new int32_t[GPS_L5I_CODE_LENGTH_CHIPS];
gsl::span<int32_t> _code_span(_code, GPS_L5I_CODE_LENGTH_CHIPS);
if (_prn > 0 and _prn < 51)
{
make_l5i(gsl::span<int32_t>(_code, GPS_L5I_CODE_LENGTH_CHIPS), _prn - 1);
make_l5i(_code_span, _prn - 1);
}
for (int32_t i = 0; i < GPS_L5I_CODE_LENGTH_CHIPS; i++)
{
_dest[i] = std::complex<float>(1.0 - 2.0 * _code[i], 0.0);
_dest[i] = std::complex<float>(1.0 - 2.0 * _code_span[i], 0.0);
}
delete[] _code;
@@ -192,15 +192,15 @@ void gps_l5i_code_gen_complex(gsl::span<std::complex<float>> _dest, uint32_t _pr
void gps_l5i_code_gen_float(gsl::span<float> _dest, uint32_t _prn)
{
auto* _code = new int32_t[GPS_L5I_CODE_LENGTH_CHIPS];
gsl::span<int32_t> _code_span(_code, GPS_L5I_CODE_LENGTH_CHIPS);
if (_prn > 0 and _prn < 51)
{
make_l5i(gsl::span<int32_t>(_code, GPS_L5I_CODE_LENGTH_CHIPS), _prn - 1);
make_l5i(_code_span, _prn - 1);
}
for (int32_t i = 0; i < GPS_L5I_CODE_LENGTH_CHIPS; i++)
{
_dest[i] = 1.0 - 2.0 * static_cast<float>(_code[i]);
_dest[i] = 1.0 - 2.0 * static_cast<float>(_code_span[i]);
}
delete[] _code;
@@ -213,9 +213,10 @@ void gps_l5i_code_gen_float(gsl::span<float> _dest, uint32_t _prn)
void gps_l5i_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, uint32_t _prn, int32_t _fs)
{
auto* _code = new int32_t[GPS_L5I_CODE_LENGTH_CHIPS];
gsl::span<int32_t> _code_span(_code, GPS_L5I_CODE_LENGTH_CHIPS);
if (_prn > 0 and _prn < 51)
{
make_l5i(gsl::span<int32_t>(_code, GPS_L5I_CODE_LENGTH_CHIPS), _prn - 1);
make_l5i(_code_span, _prn - 1);
}
int32_t _samplesPerCode, _codeValueIndex;
@@ -241,11 +242,11 @@ void gps_l5i_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, uint
if (i == _samplesPerCode - 1)
{
//--- Correct the last index (due to number rounding issues) -----------
_dest[i] = std::complex<float>(1.0 - 2.0 * _code[_codeLength - 1], 0.0);
_dest[i] = std::complex<float>(1.0 - 2.0 * _code_span[_codeLength - 1], 0.0);
}
else
{
_dest[i] = std::complex<float>(1.0 - 2.0 * _code[_codeValueIndex], 0.0); // repeat the chip -> upsample
_dest[i] = std::complex<float>(1.0 - 2.0 * _code_span[_codeValueIndex], 0.0); // repeat the chip -> upsample
}
}
delete[] _code;
@@ -255,15 +256,15 @@ void gps_l5i_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, uint
void gps_l5q_code_gen_complex(gsl::span<std::complex<float>> _dest, uint32_t _prn)
{
auto* _code = new int32_t[GPS_L5Q_CODE_LENGTH_CHIPS];
gsl::span<int32_t> _code_span(_code, GPS_L5Q_CODE_LENGTH_CHIPS);
if (_prn > 0 and _prn < 51)
{
make_l5q(gsl::span<int32_t>(_code, GPS_L5Q_CODE_LENGTH_CHIPS), _prn - 1);
make_l5q(_code_span, _prn - 1);
}
for (int32_t i = 0; i < GPS_L5Q_CODE_LENGTH_CHIPS; i++)
{
_dest[i] = std::complex<float>(1.0 - 2.0 * _code[i], 0.0);
_dest[i] = std::complex<float>(1.0 - 2.0 * _code_span[i], 0.0);
}
delete[] _code;
@@ -273,15 +274,15 @@ void gps_l5q_code_gen_complex(gsl::span<std::complex<float>> _dest, uint32_t _pr
void gps_l5q_code_gen_float(gsl::span<float> _dest, uint32_t _prn)
{
auto* _code = new int32_t[GPS_L5Q_CODE_LENGTH_CHIPS];
gsl::span<int32_t> _code_span(_code, GPS_L5Q_CODE_LENGTH_CHIPS);
if (_prn > 0 and _prn < 51)
{
make_l5q(gsl::span<int32_t>(_code, GPS_L5Q_CODE_LENGTH_CHIPS), _prn - 1);
make_l5q(_code_span, _prn - 1);
}
for (int32_t i = 0; i < GPS_L5Q_CODE_LENGTH_CHIPS; i++)
{
_dest[i] = 1.0 - 2.0 * static_cast<float>(_code[i]);
_dest[i] = 1.0 - 2.0 * static_cast<float>(_code_span[i]);
}
delete[] _code;
@@ -294,9 +295,10 @@ void gps_l5q_code_gen_float(gsl::span<float> _dest, uint32_t _prn)
void gps_l5q_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, uint32_t _prn, int32_t _fs)
{
auto* _code = new int32_t[GPS_L5Q_CODE_LENGTH_CHIPS];
gsl::span<int32_t> _code_span(_code, GPS_L5Q_CODE_LENGTH_CHIPS);
if (_prn > 0 and _prn < 51)
{
make_l5q(gsl::span<int32_t>(_code, GPS_L5Q_CODE_LENGTH_CHIPS), _prn - 1);
make_l5q(_code_span, _prn - 1);
}
int32_t _samplesPerCode, _codeValueIndex;
@@ -323,11 +325,11 @@ void gps_l5q_code_gen_complex_sampled(gsl::span<std::complex<float>> _dest, uint
if (i == _samplesPerCode - 1)
{
//--- Correct the last index (due to number rounding issues) -----------
_dest[i] = std::complex<float>(1.0 - 2.0 * _code[_codeLength - 1], 0);
_dest[i] = std::complex<float>(1.0 - 2.0 * _code_span[_codeLength - 1], 0);
}
else
{
_dest[i] = std::complex<float>(1.0 - 2.0 * _code[_codeValueIndex], 0); // repeat the chip -> upsample
_dest[i] = std::complex<float>(1.0 - 2.0 * _code_span[_codeValueIndex], 0); // repeat the chip -> upsample
}
}
delete[] _code;