leonarski_f
fc68a9baed
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This is an UNSTABLE release. The release has significant modifications for data processing - in case of troubles go back to 1.0.0-rc.144. jfjoch_process: Generate a dedicated file (_process.h5), which can be used as a replacement for the _master.h5 file for a reanalyzed dataset. jfjoch_process: Improve the performance of scaling and merging, implement on the fly scaling. jfjoch_writer: All final data analysis results are repopulated in the _master.h5 file. jfjoch_scale: Dedicated tool for rescaling/merging existing data. jfjoch_viewer: Fix bugs where pixel labels where displayed on a wrong pixel. WARNING! Scaling and merging are experimental at the moment, and may not provide reasonable results for the time being. Reviewed-on: #56
81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
// Copyright 2017 Global Phasing Ltd.
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//
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// interface to stb_sprintf: snprintf_z, to_str(float|double)
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#ifndef GEMMI_SPRINTF_HPP_
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#define GEMMI_SPRINTF_HPP_
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#include <string>
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#ifdef __has_include
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# if __has_include(<charconv>) && !(defined(_MSVC_LANG) && _MSVC_LANG < 201703L)
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# include <charconv>
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# endif
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#endif
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#if __cpp_lib_to_chars < 201611L
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# include <algorithm> // for min
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#endif
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#include "fail.hpp" // for GEMMI_DLL
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namespace gemmi {
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// On MinGW format(printf) doesn't support %zu.
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#if (defined(__GNUC__) && !defined(__MINGW32__)) || defined(__clang__)
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# define GEMMI_ATTRIBUTE_FORMAT(fmt,va) __attribute__((format(printf,fmt,va)))
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#else
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# define GEMMI_ATTRIBUTE_FORMAT(fmt,va)
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#endif
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/// stb_snprintf in gemmi namespace - like snprintf, but ignores locale
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/// and is always zero-terminated (hence _z).
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GEMMI_DLL int snprintf_z(char *buf, int count, char const *fmt, ...)
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GEMMI_ATTRIBUTE_FORMAT(3,4);
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/// stb_sprintf in gemmi namespace
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GEMMI_DLL int sprintf_z(char *buf, char const *fmt, ...) GEMMI_ATTRIBUTE_FORMAT(2,3);
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inline std::string to_str(double d) {
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char buf[24];
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int len = sprintf_z(buf, "%.9g", d);
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return std::string(buf, len > 0 ? len : 0);
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}
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inline std::string to_str(float d) {
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char buf[16];
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int len = sprintf_z(buf, "%.6g", d);
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return std::string(buf, len > 0 ? len : 0);
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}
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template<int Prec>
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std::string to_str_prec(double d) {
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static_assert(Prec >= 0 && Prec < 7, "unsupported precision");
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char buf[16];
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int len = d > -1e8 && d < 1e8 ? sprintf_z(buf, "%.*f", Prec, d)
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: sprintf_z(buf, "%g", d);
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return std::string(buf, len > 0 ? len : 0);
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}
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/// zero-terminated to_chars()
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inline char* to_chars_z(char* first, char* last, int value) {
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#if __cpp_lib_to_chars >= 201611L
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auto result = std::to_chars(first, last-1, value);
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*result.ptr = '\0';
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return result.ptr;
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#else
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int n = snprintf_z(first, int(last - first), "%d", value);
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return std::min(first + n, last - 1);
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#endif
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}
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inline char* to_chars_z(char* first, char* last, size_t value) {
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#if __cpp_lib_to_chars >= 201611L
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auto result = std::to_chars(first, last-1, value);
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*result.ptr = '\0';
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return result.ptr;
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#else
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int n = snprintf_z(first, int(last - first), "%zu", value);
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return std::min(first + n, last - 1);
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#endif
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}
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} // namespace gemmi
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#endif
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