124 lines
5.2 KiB
C++
124 lines
5.2 KiB
C++
// Copyright (2019-2023) Paul Scherrer Institute
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#include "JFConversionFloatingPoint.h"
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#include "../common/RawToConvertedGeometry.h"
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JFConversionFloatingPoint::JFConversionFloatingPoint()
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: gain_g0(RAW_MODULE_SIZE), gain_g1(RAW_MODULE_SIZE), gain_g2(RAW_MODULE_SIZE),
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pedestal_g0(RAW_MODULE_SIZE), pedestal_g1(RAW_MODULE_SIZE), pedestal_g2(RAW_MODULE_SIZE) {}
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inline float one_over_gain_energy(double gain_factor, double energy) {
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double tmp = gain_factor * energy;
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if (!std::isfinite(tmp) || (tmp == 0.0))
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return 0.0;
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else
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return static_cast<float>(1.0 / (gain_factor * energy));
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}
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void JFConversionFloatingPoint::Setup(const JFModuleGainCalibration &gain_calibration,
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const JFModulePedestal &in_pedestal_g0,
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const JFModulePedestal &in_pedestal_g1,
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const JFModulePedestal &in_pedestal_g2,
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double energy) {
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auto &gain_arr = gain_calibration.GetGainCalibration();
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memcpy(pedestal_g0.data(), in_pedestal_g0.GetPedestal(), RAW_MODULE_SIZE * sizeof(uint16_t));
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memcpy(pedestal_g1.data(), in_pedestal_g1.GetPedestal(), RAW_MODULE_SIZE * sizeof(uint16_t));
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memcpy(pedestal_g2.data(), in_pedestal_g2.GetPedestal(), RAW_MODULE_SIZE * sizeof(uint16_t));
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for (int i = 0; i < RAW_MODULE_SIZE; i++) {
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gain_g0[i] = one_over_gain_energy(gain_arr[i], energy);
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gain_g1[i] = one_over_gain_energy(gain_arr[i + RAW_MODULE_SIZE], energy);
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gain_g2[i] = one_over_gain_energy(gain_arr[i + 2 * RAW_MODULE_SIZE], energy);
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}
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}
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void JFConversionFloatingPoint::ConvertModule(int16_t *dest, const uint16_t *source) {
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for (size_t i = 0; i < RAW_MODULE_SIZE; i++) {
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uint16_t gainbits = source[i] & 0xc000;
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uint16_t adc = source[i] & 0x3fff;
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int16_t pedestal_subtracted_adu;
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float expected = PIXEL_OUT_LOST;
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switch (gainbits) {
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case 0:
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[[likely]]
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pedestal_subtracted_adu = adc - pedestal_g0[i];
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expected = static_cast<float>(pedestal_subtracted_adu) * gain_g0[i];
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if (gain_g0[i] == 0.0)
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expected = INT16_MIN;
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break;
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case 0x4000:
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pedestal_subtracted_adu = adc - pedestal_g1[i];
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expected = static_cast<float>(pedestal_subtracted_adu) * gain_g1[i];
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if (adc == 0) [[unlikely]] expected = PIXEL_OUT_G1_SATURATION;
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if (gain_g1[i] == 0.0)
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expected = INT16_MIN;
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break;
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case 0xc000:
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pedestal_subtracted_adu = adc - pedestal_g2[i];
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expected = static_cast<float>(pedestal_subtracted_adu) * gain_g2[i];
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if (adc == 0) [[unlikely]] expected = PIXEL_OUT_SATURATION;
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else if (adc == 0x3fff) [[unlikely]] expected = PIXEL_OUT_0xFFFF;
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if (gain_g0[i] == 0.0)
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expected = INT16_MIN;
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break;
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default:
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expected = PIXEL_OUT_GAINBIT_2;
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break;
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}
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if (expected == INT16_MIN)
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dest[i] = PIXEL_OUT_LOST;
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else if (expected > INT16_MAX)
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dest[i] = INT16_MAX;
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else if (expected >= 0.0)
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[[likely]]
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dest[i] = static_cast<uint16_t>(expected + 0.5f);
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else
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dest[i] = static_cast<uint16_t>(expected - 0.5f);
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}
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}
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void JFConversionFloatingPoint::ConvertFP(float *dest, const uint16_t *source) {
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for (size_t i = 0; i < RAW_MODULE_SIZE; i++) {
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uint16_t gainbits = source[i] & 0xc000;
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uint16_t adc = source[i] & 0x3fff;
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int16_t pedestal_subtracted_adu;
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float expected = PIXEL_OUT_LOST;
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bool special_val = false;
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switch (gainbits) {
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case 0:
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pedestal_subtracted_adu = adc - pedestal_g0[i];
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expected = static_cast<float>(pedestal_subtracted_adu) * gain_g0[i];
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if (gain_g0[i] == 0.0)
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expected = INT16_MIN, special_val = true;
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break;
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case 0x4000:
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pedestal_subtracted_adu = adc - pedestal_g1[i];
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expected = static_cast<float>(pedestal_subtracted_adu) * gain_g1[i];
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if (adc == 0) expected = PIXEL_OUT_G1_SATURATION, special_val = true;
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if (gain_g1[i] == 0.0)
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expected = INT16_MIN, special_val = true;
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break;
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case 0xc000:
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pedestal_subtracted_adu = adc - pedestal_g2[i];
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expected = static_cast<float>(pedestal_subtracted_adu) * gain_g2[i];
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if (adc == 0) expected = PIXEL_OUT_SATURATION, special_val = true;
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else if (adc == 0x3fff) expected = PIXEL_OUT_0xFFFF, special_val = true;
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if (gain_g2[i] == 0.0)
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expected = INT16_MIN, special_val = true;
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break;
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default:
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expected = PIXEL_OUT_GAINBIT_2, special_val = true;;
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break;
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}
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if ((expected > PIXEL_OUT_SATURATION) && !special_val)
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expected = PIXEL_OUT_SATURATION;
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dest[i] = expected;
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}
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}
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