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Diffstat (limited to 'tools/mid2agb/main.cpp')
| -rw-r--r-- | tools/mid2agb/main.cpp | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/tools/mid2agb/main.cpp b/tools/mid2agb/main.cpp new file mode 100644 index 0000000..ea2b294 --- /dev/null +++ b/tools/mid2agb/main.cpp @@ -0,0 +1,233 @@ +// 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; +} |