tumbledemerald-legacy/tools/mid2agb/main.cpp
2022-05-19 17:14:13 +00:00

234 lines
6.4 KiB
C++

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