105 lines
5.2 KiB
C++
105 lines
5.2 KiB
C++
// Copyright (2019-2023) Paul Scherrer Institute
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#include <cstring>
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#include <bitshuffle/bitshuffle.h>
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#include "FrameTransformation.h"
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#include "RawToConvertedGeometry.h"
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#include "JFJochException.h"
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template <class T> void FillVector(std::vector<char> &v, T fill_value) {
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auto ptr = (T *) v.data();
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for (int i = 0; i < v.size() / sizeof(T); i++)
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ptr[i] = fill_value;
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}
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FrameTransformation::FrameTransformation(const DiffractionExperiment &in_experiment) :
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experiment(in_experiment),
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pixel_depth(experiment.GetPixelDepth()), pixel_signed(experiment.IsPixelSigned()),
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compressor(in_experiment.GetCompressionAlgorithm()) {
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precompression_buffer.resize(experiment.GetPixelsNum() * pixel_depth);
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if (pixel_depth == 2) {
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if (pixel_signed)
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FillVector<int16_t>(precompression_buffer, INT16_MIN);
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else
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FillVector<uint16_t>(precompression_buffer, UINT16_MAX);
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} else if (pixel_depth == 4) {
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if (pixel_signed)
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FillVector<int32_t>(precompression_buffer, INT32_MIN);
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else
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FillVector<uint32_t>(precompression_buffer, UINT32_MAX);
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}
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}
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CompressedImage FrameTransformation::GetCompressedImage() {
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CompressedImage image{};
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if (experiment.GetCompressionAlgorithm() == CompressionAlgorithm::NO_COMPRESSION) {
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image.data = (uint8_t *) precompression_buffer.data();
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image.size = experiment.GetPixelsNum() * experiment.GetPixelDepth();
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} else {
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compressed_buffer.resize(MaxCompressedSize(experiment.GetCompressionAlgorithm(),
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experiment.GetPixelsNum(),
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experiment.GetPixelDepth()));
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image.data = (uint8_t *) compressed_buffer.data();
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image.size = compressor.Compress(compressed_buffer.data(), precompression_buffer.data(),
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experiment.GetPixelsNum(), experiment.GetPixelDepth());
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}
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image.xpixel = experiment.GetXPixelsNum();
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image.ypixel = experiment.GetYPixelsNum();
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image.algorithm = experiment.GetCompressionAlgorithm();
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image.pixel_depth_bytes = experiment.GetPixelDepth();
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image.pixel_is_signed = pixel_signed;
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image.pixel_is_float = false;
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image.channel = "default";
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return image;
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}
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void FrameTransformation::ProcessModule(const void *input, uint16_t module_number, int data_stream) {
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size_t module_number_abs = experiment.GetFirstModuleOfDataStream(data_stream) + module_number;
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if (experiment.GetDetectorMode() != DetectorMode::Conversion) {
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size_t mod_size = RAW_MODULE_SIZE * pixel_depth;
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memcpy(precompression_buffer.data() + module_number_abs * mod_size, input, mod_size);
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} else {
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if (pixel_depth == 2) {
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if (pixel_signed)
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TransferModuleAdjustMultipixels((int16_t *) precompression_buffer.data(), (int16_t *) input,
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experiment.GetModuleSlowDirectionStep(module_number_abs),
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static_cast<int16_t>(INT16_MIN),
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static_cast<int16_t>(INT16_MAX),
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experiment.GetModuleFastDirectionStep(module_number_abs),
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experiment.GetPixel0OfModule(module_number_abs));
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else
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TransferModuleAdjustMultipixels((uint16_t *) precompression_buffer.data(), (uint16_t *) input,
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experiment.GetModuleSlowDirectionStep(module_number_abs),
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static_cast<uint16_t>(0),
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static_cast<uint16_t>(UINT16_MAX - 1),
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experiment.GetModuleFastDirectionStep(module_number_abs),
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experiment.GetPixel0OfModule(module_number_abs));
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} else if (pixel_depth == 4) {
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if (pixel_signed)
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TransferModuleAdjustMultipixels((int32_t *) precompression_buffer.data(), (int32_t *) input,
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experiment.GetModuleSlowDirectionStep(module_number_abs),
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static_cast<int32_t>(INT32_MIN),
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static_cast<int32_t>(INT32_MAX),
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experiment.GetModuleFastDirectionStep(module_number_abs),
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experiment.GetPixel0OfModule(module_number_abs));
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else
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TransferModuleAdjustMultipixels((uint32_t *) precompression_buffer.data(), (uint32_t *) input,
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experiment.GetModuleSlowDirectionStep(module_number_abs),
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static_cast<uint32_t>(0),
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static_cast<uint32_t>(UINT32_MAX - 1),
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experiment.GetModuleFastDirectionStep(module_number_abs),
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experiment.GetPixel0OfModule(module_number_abs));
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}
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}
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}
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const void *FrameTransformation::GetImage() const {
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return precompression_buffer.data();
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}
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