Merge branch 'master' of github.com:twitchplayspokemon/pokeruby

1 files changed, 230 insertions, 0 deletions

diff --git a/tools/mid2agb/main.cpp b/tools/mid2agb/main.cpp
new file mode 100644
index 000000000..9b883fba5
--- /dev/null
+++ b/tools/mid2agb/main.cpp
@@ -0,0 +1,230 @@
+// 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  -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 "";
+}
+
+struct Option
+{
+    char letter = 0;
+    const char *arg = NULL;
+};
+
+static Option ParseOption(int& index, const int argc, char** argv)
+{
+    static std::set<char> optionsWithArg = { 'L', 'V', 'G', 'P', 'R' };
+    static std::set<char> optionsWithoutArg = { 'X', 'E', 'N' };
+
+    assert(index >= 0 && index < argc);
+
+    const char *opt = argv[index];
+
+    assert(opt[0] == '-');
+    assert(std::strlen(opt) == 2);
+
+    char letter = std::toupper(opt[1]);
+
+    bool isOption = false;
+    bool hasArg = false;
+
+    if (optionsWithArg.count(letter) != 0)
+    {
+        isOption = true;
+        hasArg = true;
+    }
+    else if (optionsWithoutArg.count(letter) != 0)
+    {
+        isOption = true;
+    }
+
+    if (!isOption)
+        PrintUsage();
+
+    Option retVal;
+
+    retVal.letter = letter;
+
+    if (hasArg)
+    {
+        index++;
+
+        if (index >= argc)
+            RaiseError("missing argument for \"-%c\"", letter);
+
+        retVal.arg = argv[index];
+    }
+
+    return retVal;
+}
+
+int main(int argc, char** argv)
+{
+    std::string inputFilename;
+    std::string outputFilename;
+
+    for (int i = 1; i < argc; i++)
+    {
+        if (argv[i][0] == '-' && std::strlen(argv[i]) == 2)
+        {
+            Option option = ParseOption(i, argc, argv);
+
+            switch (option.letter)
+            {
+            case 'E':
+                g_exactGateTime = true;
+                break;
+            case 'G':
+                g_voiceGroup = std::stoi(option.arg);
+                break;
+            case 'L':
+                g_asmLabel = option.arg;
+                break;
+            case 'N':
+                g_compressionEnabled = false;
+                break;
+            case 'P':
+                g_priority = std::stoi(option.arg);
+                break;
+            case 'R':
+                g_reverb = std::stoi(option.arg);
+                break;
+            case 'V':
+                g_masterVolume = std::stoi(option.arg);
+                break;
+            case 'X':
+                g_clocksPerBeat = 2;
+                break;
+            }
+        }
+        else
+        {
+            switch (i)
+            {
+            case 1:
+                inputFilename = argv[i];
+                break;
+            case 2:
+                outputFilename = argv[i];
+                break;
+            default:
+                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 = StripExtension(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;
+}