96 lines
3 KiB
C++
96 lines
3 KiB
C++
// SPDX-License-Identifier: BSD-2-Clause
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// This code is part of the sfizz library and is licensed under a BSD 2-clause
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// license. You should have receive a LICENSE.md file along with the code.
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// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
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#include "sfizz/Wavetables.h"
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#include <absl/strings/numbers.h>
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#include <absl/strings/string_view.h>
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#include <iostream>
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static void usage()
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{
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std::cerr << "Usage: sfizz_plot_wavetables [-w wave] [-a amplitude] [-c cutoff] [-m]\n";
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}
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int main(int argc, char* argv[])
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{
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absl::string_view waveName;
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double amplitude = 1.0;
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double cutoff = 0.5;
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bool generateMulti = false;
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for (int i = 1; i < argc; ++i) {
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absl::string_view arg = argv[i];
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if (arg == "-w") {
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if (i + 1 >= argc)
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return usage(), 1;
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waveName = argv[++i];
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} else if (arg == "-a") {
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if (i + 1 >= argc || !absl::SimpleAtod(argv[++i], &litude))
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return usage(), 1;
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} else if (arg == "-c") {
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if (i + 1 >= argc || !absl::SimpleAtod(argv[++i], &cutoff))
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return usage(), 1;
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} else if (arg == "-m")
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generateMulti = true;
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else
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return usage(), 1;
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}
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if (waveName.empty())
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waveName = "saw";
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const sfz::HarmonicProfile* hp = nullptr;
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if (waveName == "sine")
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hp = &sfz::HarmonicProfile::getSine();
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else if (waveName == "square")
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hp = &sfz::HarmonicProfile::getSquare();
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else if (waveName == "triangle")
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hp = &sfz::HarmonicProfile::getTriangle();
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else if (waveName == "saw")
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hp = &sfz::HarmonicProfile::getSaw();
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else {
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std::cerr << "Unknown wave: " << waveName << '\n';
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return 1;
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}
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constexpr size_t tableSize = 2048;
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float table[tableSize];
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if (!generateMulti) {
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hp->generate(table, amplitude, cutoff);
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for (size_t i = 0; i < tableSize; ++i)
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std::cout << (i * (1.0 / tableSize)) << ' ' << table[i] << '\n';
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} else {
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sfz::WavetableMulti multi = sfz::WavetableMulti::createForHarmonicProfile(
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*hp, 1.0, tableSize);
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unsigned multiSize = multi.multiSize();
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if (true) {
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// print all tables one after another
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for (unsigned m = 0; m < multiSize; ++m) {
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absl::Span<const float> table = multi.getTable(m);
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for (size_t i = 0; i < tableSize; ++i) {
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std::cout << ((i + m * tableSize) * (1.0 / tableSize))
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<< ' ' << table[i] << '\n';
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}
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}
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} else {
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// print all tables separately
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for (size_t i = 0; i < tableSize; ++i) {
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std::cout << (i * (1.0 / tableSize));
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for (unsigned m = 0; m < multiSize; ++m) {
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absl::Span<const float> table = multi.getTable(m);
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std::cout << ' ' << table[i];
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}
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std::cout << '\n';
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}
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}
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}
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return 0;
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}
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