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233
tools/mid2agb/main.cpp
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233
tools/mid2agb/main.cpp
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// Copyright(c) 2016 YamaArashi
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <cctype>
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#include <cassert>
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#include <string>
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#include <set>
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#include "main.h"
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#include "error.h"
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#include "midi.h"
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#include "agb.h"
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FILE* g_inputFile = nullptr;
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FILE* g_outputFile = nullptr;
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std::string g_asmLabel;
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int g_masterVolume = 127;
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int g_voiceGroup = 0;
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int g_priority = 0;
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int g_reverb = -1;
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int g_clocksPerBeat = 1;
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bool g_exactGateTime = false;
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bool g_compressionEnabled = true;
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[[noreturn]] static void PrintUsage()
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{
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std::printf(
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"Usage: MID2AGB name [options]\n"
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"\n"
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" input_file filename(.mid) of MIDI file\n"
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" output_file filename(.s) for AGB file (default:input_file)\n"
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"\n"
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"options -L??? label for assembler (default:output_file)\n"
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" -V??? master volume (default:127)\n"
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" -G??? voice group number (default:0)\n"
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" -P??? priority (default:0)\n"
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" -R??? reverb (default:off)\n"
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" -X 48 clocks/beat (default:24 clocks/beat)\n"
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" -E exact gate-time\n"
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" -N no compression\n"
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);
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std::exit(1);
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}
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static std::string StripExtension(std::string s)
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{
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std::size_t pos = s.find_last_of('.');
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if (pos > 0 && pos != std::string::npos)
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{
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s = s.substr(0, pos);
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}
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return s;
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}
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static std::string GetExtension(std::string s)
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{
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std::size_t pos = s.find_last_of('.');
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if (pos > 0 && pos != std::string::npos)
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{
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return s.substr(pos + 1);
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}
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return "";
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}
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static std::string BaseName(std::string s)
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{
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std::size_t posAfterSlash = s.find_last_of("/\\");
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if (posAfterSlash == std::string::npos)
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posAfterSlash = 0;
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else
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posAfterSlash++;
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std::size_t dotPos = s.find_first_of('.', posAfterSlash);
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if (dotPos > posAfterSlash && dotPos != std::string::npos)
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s = s.substr(posAfterSlash, dotPos - posAfterSlash);
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return s;
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}
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static const char *GetArgument(int argc, char **argv, int& index)
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{
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assert(index >= 0 && index < argc);
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const char *option = argv[index];
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assert(option != nullptr);
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assert(option[0] == '-');
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// If there is text following the letter, return that.
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if (std::strlen(option) >= 3)
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return option + 2;
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// Otherwise, try to get the next arg.
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if (index + 1 < argc)
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{
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index++;
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return argv[index];
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}
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else
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{
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return nullptr;
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}
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}
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int main(int argc, char** argv)
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{
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std::string inputFilename;
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std::string outputFilename;
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for (int i = 1; i < argc; i++)
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{
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const char *option = argv[i];
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if (option[0] == '-' && option[1] != '\0')
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{
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const char *arg;
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switch (std::toupper(option[1]))
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{
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case 'E':
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g_exactGateTime = true;
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break;
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case 'G':
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arg = GetArgument(argc, argv, i);
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if (arg == nullptr)
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PrintUsage();
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g_voiceGroup = std::stoi(arg);
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break;
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case 'L':
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arg = GetArgument(argc, argv, i);
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if (arg == nullptr)
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PrintUsage();
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g_asmLabel = arg;
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break;
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case 'N':
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g_compressionEnabled = false;
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break;
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case 'P':
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arg = GetArgument(argc, argv, i);
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if (arg == nullptr)
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PrintUsage();
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g_priority = std::stoi(arg);
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break;
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case 'R':
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arg = GetArgument(argc, argv, i);
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if (arg == nullptr)
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PrintUsage();
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g_reverb = std::stoi(arg);
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break;
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case 'V':
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arg = GetArgument(argc, argv, i);
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if (arg == nullptr)
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PrintUsage();
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g_masterVolume = std::stoi(arg);
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break;
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case 'X':
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g_clocksPerBeat = 2;
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break;
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default:
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PrintUsage();
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}
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}
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else
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{
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if (inputFilename.empty())
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inputFilename = argv[i];
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else if (outputFilename.empty())
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outputFilename = argv[i];
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else
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PrintUsage();
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}
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}
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if (inputFilename.empty())
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PrintUsage();
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if (GetExtension(inputFilename) != "mid")
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RaiseError("input filename extension is not \"mid\"");
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if (outputFilename.empty())
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outputFilename = StripExtension(inputFilename) + ".s";
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if (GetExtension(outputFilename) != "s")
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RaiseError("output filename extension is not \"s\"");
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if (g_asmLabel.empty())
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g_asmLabel = BaseName(outputFilename);
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g_inputFile = std::fopen(inputFilename.c_str(), "rb");
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if (g_inputFile == nullptr)
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RaiseError("failed to open \"%s\" for reading", inputFilename.c_str());
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g_outputFile = std::fopen(outputFilename.c_str(), "w");
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if (g_outputFile == nullptr)
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RaiseError("failed to open \"%s\" for writing", outputFilename.c_str());
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ReadMidiFileHeader();
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PrintAgbHeader();
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ReadMidiTracks();
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PrintAgbFooter();
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std::fclose(g_inputFile);
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std::fclose(g_outputFile);
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return 0;
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}
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