public unsafe bool Save(Project originalProject, string filename, int[] songIds, string name, string author)
{
try
{
if (songIds.Length == 0)
{
return(false);
}
if (songIds.Length > MaxSongs)
{
Array.Resize(ref songIds, MaxSongs);
}
var project = originalProject.DeepClone();
project.RemoveAllSongsBut(songIds);
if (project.ExpansionAudio != ExpansionType.Fds)
{
project.SetExpansionAudio(ExpansionType.Fds);
}
string fdsDiskName = "FamiStudio.Rom.fds";
if (project.UsesFamiTrackerTempo)
{
fdsDiskName += "_famitracker";
}
fdsDiskName += ".fds";
// Read FDS disk header + code.
var fdsDiskBinStream = typeof(RomFile).Assembly.GetManifestResourceStream(fdsDiskName);
var fdsDiskInitBytes = new byte[fdsDiskBinStream.Length];
fdsDiskBinStream.Read(fdsDiskInitBytes, 0, fdsDiskInitBytes.Length);
TruncateToLastFile(ref fdsDiskInitBytes);
var fdsFileBytes = new List <byte>();
fdsFileBytes.AddRange(fdsDiskInitBytes);
Log.LogMessage(LogSeverity.Info, $"FDS code and graphics files: {fdsDiskInitBytes.Length} bytes.");
var fileIndex = FdsFirstFileIndex;
var dpcmFileIndex = 0;
// Create the DPCM file if needed.
if (project.UsesSamples)
{
var dpcmBytes = project.GetPackedSampleData();
if (dpcmBytes.Length > FdsMaxDpcmSize)
{
Log.LogMessage(LogSeverity.Warning, $"DPCM samples size ({dpcmBytes.Length}) is larger than the maximum allowed for FDS export ({FdsMaxDpcmSize}). Truncating.");
Array.Resize(ref dpcmBytes, FdsMaxDpcmSize);
}
AddFile(fdsFileBytes, fileIndex, FdsDpcmStart, "DPCM....", dpcmBytes);
dpcmFileIndex = fileIndex;
fileIndex++;
Log.LogMessage(LogSeverity.Info, $"DPCM file size: {dpcmBytes.Length} bytes.");
}
var projectInfo = BuildProjectInfo(songIds, name, author);
var songTable = BuildSongTableOfContent(project);
// Export each song as an individual file.
for (int i = 0; i < project.Songs.Count; i++)
{
var song = project.Songs[i];
var songBytes = new FamitoneMusicFile(FamiToneKernel.FamiStudio, false).GetBytes(project, new int[] { song.Id }, FdsSongDataAddr, FdsDpcmStart, MachineType.NTSC);
songTable[i].page = (byte)fileIndex;
songTable[i].flags = (byte)(song.UsesDpcm ? dpcmFileIndex : 0);
if (songBytes.Length > FdsMaxSongSize)
{
Log.LogMessage(LogSeverity.Warning, $"Song '{song.Name}' is too large ({songBytes.Length} bytes, maximum is {FdsMaxSongSize}). File will be corrupted.");
Array.Resize(ref songBytes, FdsMaxSongSize);
}
if (fdsFileBytes.Count + FdsBlockHeaderSize + songBytes.Length > FdsMaxFileSize)
{
Log.LogMessage(LogSeverity.Warning, $"Reached maximum file size ({FdsMaxFileSize}). Songs will be missing.");
break;
}
AddFile(fdsFileBytes, fileIndex, FdsSongDataAddr, $"SONG{i}...", songBytes);
fileIndex++;
Log.LogMessage(LogSeverity.Info, $"Song '{song.Name}' file size: {songBytes.Length} bytes.");
}
//File.WriteAllBytes("D:\\dump\\fdsdata.bin", fdsFileBytes.ToArray());
// Use this field for the number of files.
projectInfo.dpcmPageCount = (byte)fileIndex;
// Pad rest with zeroes.
fdsFileBytes.AddRange(new byte[FdsMaxFileSize - fdsFileBytes.Count]);
// Build project info + song table of content.
var tocBytes = new byte[sizeof(RomProjectInfo) + sizeof(RomSongEntry) * songTable.Length];
Marshal.Copy(new IntPtr(&projectInfo), tocBytes, 0, sizeof(RomProjectInfo));
for (int i = 0; i < MaxSongs; i++)
{
fixed(RomSongEntry *songEntry = &songTable[i])
Marshal.Copy(new IntPtr(songEntry), tocBytes, sizeof(RomProjectInfo) + i * sizeof(RomSongEntry), sizeof(RomSongEntry));
}
//File.WriteAllBytes("D:\\dump\\fdstoc.bin", tocBytes);
// Path TOC file.
var byteArray = fdsFileBytes.ToArray();
PatchFile(byteArray, "TOC.....", tocBytes);
// Build final ROM and save.
File.WriteAllBytes(filename, byteArray);
Log.LogMessage(LogSeverity.Info, $"FDS export successful, final file size {byteArray.Length} bytes.");
}
catch (Exception e)
{
Log.LogMessage(LogSeverity.Error, "Please contact the developer on GitHub!");
Log.LogMessage(LogSeverity.Error, e.Message);
Log.LogMessage(LogSeverity.Error, e.StackTrace);
return(false);
}
return(true);
}
public unsafe bool Save(Project originalProject, int kernel, string filename, int[] songIds, string name, string author, string copyright, int machine)
{
#if !DEBUG
try
{
#endif
if (songIds.Length == 0)
{
return(false);
}
Debug.Assert(!originalProject.UsesExpansionAudio || machine == MachineType.NTSC);
var project = originalProject.DeepClone();
project.RemoveAllSongsBut(songIds);
// Header
var header = new NsfHeader();
header.id[0] = (byte)'N';
header.id[1] = (byte)'E';
header.id[2] = (byte)'S';
header.id[3] = (byte)'M';
header.id[4] = (byte)0x1a;
header.version = 1;
header.numSongs = (byte)project.Songs.Count;
header.startingSong = 1;
header.loadAddr = 0x8000;
header.initAddr = NsfInitAddr;
header.playAddr = NsfPlayAddr;
header.playSpeedNTSC = 16639;
header.playSpeedPAL = 19997;
header.palNtscFlags = (byte)machine;
header.extensionFlags = (byte)(project.ExpansionAudio == ExpansionType.None ? 0 : 1 << (project.ExpansionAudio - 1));
header.banks[0] = 0;
header.banks[1] = 1;
header.banks[2] = 2;
header.banks[3] = 3;
header.banks[4] = 4;
header.banks[5] = 5;
header.banks[6] = 6;
header.banks[7] = 7;
var nameBytes = Encoding.ASCII.GetBytes(name);
var artistBytes = Encoding.ASCII.GetBytes(author);
var copyrightBytes = Encoding.ASCII.GetBytes(copyright);
Marshal.Copy(nameBytes, 0, new IntPtr(header.song), Math.Min(31, nameBytes.Length));
Marshal.Copy(artistBytes, 0, new IntPtr(header.artist), Math.Min(31, artistBytes.Length));
Marshal.Copy(copyrightBytes, 0, new IntPtr(header.copyright), Math.Min(31, copyrightBytes.Length));
var headerBytes = new byte[sizeof(NsfHeader)];
Marshal.Copy(new IntPtr(&header), headerBytes, 0, headerBytes.Length);
List <byte> nsfBytes = new List <byte>();
string kernelBinary = "nsf";
if (kernel == FamiToneKernel.FamiStudio)
{
kernelBinary += "_famistudio";
if (project.UsesFamiTrackerTempo)
{
kernelBinary += "_famitracker";
}
if (project.UsesExpansionAudio)
{
kernelBinary += $"_{project.ExpansionAudioShortName.ToLower()}";
if (project.ExpansionAudio == ExpansionType.N163)
{
kernelBinary += $"_{project.ExpansionNumChannels}ch";
}
}
}
else
{
kernelBinary += "_famitone2";
if (project.UsesFamiStudioTempo)
{
project.ConvertToFamiTrackerTempo(false);
}
}
switch (machine)
{
case MachineType.NTSC: kernelBinary += "_ntsc"; break;
case MachineType.PAL: kernelBinary += "_pal"; break;
case MachineType.Dual: kernelBinary += "_dual"; break;
}
kernelBinary += ".bin";
// Code/sound engine
var nsfBinStream = typeof(NsfFile).Assembly.GetManifestResourceStream("FamiStudio.Nsf." + kernelBinary);
var nsfBinBuffer = new byte[nsfBinStream.Length - 128]; // Skip header.
nsfBinStream.Seek(128, SeekOrigin.Begin);
nsfBinStream.Read(nsfBinBuffer, 0, nsfBinBuffer.Length);
nsfBytes.AddRange(nsfBinBuffer);
Log.LogMessage(LogSeverity.Info, $"Sound engine code size: {nsfBinBuffer.Length} bytes.");
var songTableIdx = nsfBytes.Count;
var songTableSize = NsfGlobalVarsSize + project.Songs.Count * NsfSongTableEntrySize;
nsfBytes.AddRange(new byte[songTableSize]);
Log.LogMessage(LogSeverity.Info, $"Song table size: {songTableSize} bytes.");
var songDataIdx = nsfBytes.Count;
var dpcmBaseAddr = NsfDpcmOffset;
var dpcmPadding = 0;
if (project.UsesSamples)
{
var totalSampleSize = project.GetTotalSampleSize();
// Samples need to be 64-bytes aligned.
var initPaddingSize = 64 - (nsfBytes.Count & 0x3f);
nsfBytes.AddRange(new byte[initPaddingSize]);
// We start putting the samples right after the code, so the first page is not a
// full one. If we have near 16KB of samples, we might go over the 4 page limit.
// In this case, we will introduce padding until the next page.
if (nsfBytes.Count + totalSampleSize > Project.MaxMappedSampleSize)
{
dpcmPadding = NsfPageSize - (nsfBytes.Count & (NsfPageSize - 1));
nsfBytes.AddRange(new byte[dpcmPadding]);
}
var dpcmPageStart = (nsfBytes.Count) / NsfPageSize;
var dpcmPageEnd = (nsfBytes.Count + totalSampleSize - 1) / NsfPageSize;
var dpcmPageCount = dpcmPageEnd - dpcmPageStart + 1;
// Otherwise we will allocate at least a full page for the samples and use the following mapping:
// 0KB - 4KB samples: starts at 0xf000
// 4KB - 8KB samples: starts at 0xe000
// 8KB - 12KB samples: starts at 0xd000
// 12KB - 16KB samples: starts at 0xc000
dpcmBaseAddr += (4 - dpcmPageCount) * NsfPageSize + (nsfBytes.Count & (NsfPageSize - 1));
nsfBytes.AddRange(project.GetPackedSampleData());
nsfBytes[songTableIdx + 0] = (byte)dpcmPageStart; // DPCM_PAGE_START
nsfBytes[songTableIdx + 1] = (byte)dpcmPageCount; // DPCM_PAGE_CNT
Log.LogMessage(LogSeverity.Info, $"DPCM samples size: {totalSampleSize} bytes.");
Log.LogMessage(LogSeverity.Info, $"DPCM padding size: {initPaddingSize + dpcmPadding} bytes.");
}
// Export each song individually, build TOC at the same time.
for (int i = 0; i < project.Songs.Count; i++)
{
var song = project.Songs[i];
var firstPage = nsfBytes.Count < NsfPageSize;
int page = nsfBytes.Count / NsfPageSize + (firstPage ? 1 : 0);
int addr = NsfMemoryStart + (firstPage ? 0 : NsfPageSize) + (nsfBytes.Count & (NsfPageSize - 1));
var songBytes = new FamitoneMusicFile(kernel, false).GetBytes(project, new int[] { song.Id }, addr, dpcmBaseAddr, machine);
// If we introduced padding for the samples, we can try to squeeze a song in there.
if (songBytes.Length < dpcmPadding)
{
// TODO. We should start writing at [songDataIdx] until we run out of dpcmPadding.
}
var idx = songTableIdx + NsfGlobalVarsSize + i * NsfSongTableEntrySize;
nsfBytes[idx + 0] = (byte)(page);
nsfBytes[idx + 1] = (byte)((addr >> 0) & 0xff);
nsfBytes[idx + 2] = (byte)((addr >> 8) & 0xff);
nsfBytes[idx + 3] = (byte)0;
nsfBytes.AddRange(songBytes);
Log.LogMessage(LogSeverity.Info, $"Song '{song.Name}' size: {songBytes.Length} bytes.");
}
// Finally insert the header, not very efficient, but easy.
nsfBytes.InsertRange(0, headerBytes);
File.WriteAllBytes(filename, nsfBytes.ToArray());
Log.LogMessage(LogSeverity.Info, $"NSF export successful, final file size {nsfBytes.Count} bytes.");
#if !DEBUG
}
catch (Exception e)
{
Log.LogMessage(LogSeverity.Error, "Please contact the developer on GitHub!");
Log.LogMessage(LogSeverity.Error, e.Message);
Log.LogMessage(LogSeverity.Error, e.StackTrace);
return(false);
}
#endif
return(true);
}
const int MaxDpcmSize = 0x2c00; // 11KB
public unsafe bool Save(Project originalProject, string filename, int[] songIds, string name, string author, bool pal)
{
#if !DEBUG
try
#endif
{
if (songIds.Length == 0)
{
return(false);
}
Debug.Assert(!originalProject.UsesAnyExpansionAudio || !pal);
if (songIds.Length > MaxSongs)
{
Array.Resize(ref songIds, MaxSongs);
}
var project = originalProject.DeepClone();
project.DeleteAllSongsBut(songIds);
project.SetExpansionAudioMask(ExpansionType.NoneMask);
var headerBytes = new byte[RomHeaderLength];
var codeBytes = new byte[RomCodeAndTocSize + RomTileSize];
// Load ROM header (16 bytes) + code/tiles (12KB).
string romName = "FamiStudio.Rom.rom";
if (project.UsesFamiTrackerTempo)
{
romName += "_famitracker";
}
romName += pal ? "_pal" : "_ntsc";
romName += ".nes";
var romBinStream = typeof(RomFile).Assembly.GetManifestResourceStream(romName);
romBinStream.Read(headerBytes, 0, RomHeaderLength);
romBinStream.Seek(-RomCodeAndTocSize - RomTileSize, SeekOrigin.End);
romBinStream.Read(codeBytes, 0, RomCodeAndTocSize + RomTileSize);
Log.LogMessage(LogSeverity.Info, $"ROM code and graphics size: {codeBytes.Length} bytes.");
// Build project info + song table of content.
var projectInfo = BuildProjectInfo(songIds, name, author);
var songTable = BuildSongTableOfContent(project);
// Gathersong data.
var songBanks = new List <List <byte> >();
// Export each song individually, build TOC at the same time.
for (int i = 0; i < project.Songs.Count; i++)
{
if (i == MaxSongs)
{
Log.LogMessage(LogSeverity.Warning, $"Too many songs. There is a hard limit of {MaxSongs} at the moment. Ignoring any extra songs.");
break;
}
var song = project.Songs[i];
var songBytes = new FamitoneMusicFile(FamiToneKernel.FamiStudio, false).GetBytes(project, new int[] { song.Id }, RomSongDataStart, RomDpcmStart, pal ? MachineType.PAL : MachineType.NTSC);
if (songBytes.Length > MaxSongSize)
{
Log.LogMessage(LogSeverity.Warning, $"Song {song.Name} has a size of {songBytes.Length}, which is larger than the maximum allowed for ROM export ({MaxSongSize}). Truncating.");
Array.Resize(ref songBytes, MaxSongSize);
}
var numBanks = Utils.DivideAndRoundUp(songBytes.Length, RomBankSize);
Debug.Assert(numBanks <= 2);
var songBank = songBanks.Count;
var songAddr = RomSongDataStart;
// If single bank, look for an existing bank with some free space at the end.
if (numBanks == 1)
{
var foundExistingBank = false;
for (int j = 0; j < songBanks.Count; j++)
{
var freeSpace = RomBankSize - songBanks[j].Count;
if (songBytes.Length <= freeSpace)
{
songBank = j;
songAddr = RomSongDataStart + songBanks[j].Count;
songBytes = new FamitoneMusicFile(FamiToneKernel.FamiStudio, false).GetBytes(project, new int[] { song.Id }, songAddr, RomDpcmStart, pal ? MachineType.PAL : MachineType.NTSC);
Debug.Assert(songBytes.Length <= freeSpace);
foundExistingBank = true;
break;
}
}
// No free space found, allocation a new partial bank.
if (!foundExistingBank)
{
songBanks.Add(new List <byte>());
}
songBanks[songBank].AddRange(songBytes);
}
else
{
// When a song uses 2 banks, allocate a new full one and a partial one.
var bank0 = new List <byte>();
var bank1 = new List <byte>();
for (int j = 0; j < RomBankSize; j++)
{
bank0.Add(songBytes[j]);
}
for (int j = RomBankSize; j < songBytes.Length; j++)
{
bank1.Add(songBytes[j]);
}
songBanks.Add(bank0);
songBanks.Add(bank1);
}
songTable[i].bank = (byte)songBank;
songTable[i].address = (ushort)songAddr;
songTable[i].flags = (byte)(song.UsesDpcm ? 1 : 0);
Log.LogMessage(LogSeverity.Info, $"Song '{song.Name}' size: {songBytes.Length} bytes.");
}
//File.WriteAllBytes("D:\\debug.bin", songDataBytes.ToArray());
// Add extra empty banks if we haven't reached the minimum.
if (songBanks.Count < RomMinNumberBanks)
{
for (int i = songBanks.Count; i < RomMinNumberBanks; i++)
{
songBanks.Add(new List <byte>());
}
}
else if ((songBanks.Count & 1) != 0)
{
songBanks.Add(new List <byte>());
}
// Build final song bank data.
var songBanksBytes = new byte[songBanks.Count * RomBankSize];
for (int i = 0; i < songBanks.Count; i++)
{
Array.Copy(songBanks[i].ToArray(), 0, songBanksBytes, i * RomBankSize, songBanks[i].Count);
}
// Patch in code (project info and song table are after the code, 0xf000).
Marshal.Copy(new IntPtr(&projectInfo), codeBytes, RomTocOffset, sizeof(RomProjectInfo));
for (int i = 0; i < MaxSongs; i++)
{
fixed(RomSongEntry *songEntry = &songTable[i])
Marshal.Copy(new IntPtr(songEntry), codeBytes, RomTocOffset + sizeof(RomProjectInfo) + i * sizeof(RomSongEntry), sizeof(RomSongEntry));
}
// Patch header (iNES header always counts in 16KB banks, MMC3 counts in 8KB banks)
headerBytes[RomHeaderPrgOffset] = (byte)((songBanks.Count + RomCodeDpcmNumBanks) * RomBankSize / 0x4000);
// Build final ROM and save.
var romBytes = new List <byte>();
romBytes.AddRange(headerBytes);
romBytes.AddRange(songBanksBytes);
// Samples are at the end, right before the source engine code. MMC3 second to last and last banks respectively.
if (project.UsesSamples)
{
// Since we keep the code/engine at f000 all the time, we are limited to 12KB of samples in ROM.
var dpcmBytes = project.GetPackedSampleData();
Log.LogMessage(LogSeverity.Info, $"DPCM size: {dpcmBytes.Length} bytes.");
if (dpcmBytes.Length > MaxDpcmSize)
{
Log.LogMessage(LogSeverity.Warning, $"DPCM samples size ({dpcmBytes.Length}) is larger than the maximum allowed for ROM export ({MaxDpcmSize}). Truncating.");
}
// Always allocate the full 11KB of samples.
Array.Resize(ref dpcmBytes, MaxDpcmSize);
romBytes.AddRange(dpcmBytes);
}
else
{
romBytes.AddRange(new byte[MaxDpcmSize]);
}
romBytes.AddRange(codeBytes);
File.WriteAllBytes(filename, romBytes.ToArray());
Log.LogMessage(LogSeverity.Info, $"ROM export successful, final file size {romBytes.Count} bytes.");
}
#if !DEBUG
catch (Exception e)
{
Log.LogMessage(LogSeverity.Error, "Please contact the developer on GitHub!");
Log.LogMessage(LogSeverity.Error, e.Message);
Log.LogMessage(LogSeverity.Error, e.StackTrace);
return(false);
}
#endif
return(true);
}
public unsafe static bool Save(Project originalProject, FamitoneMusicFile.FamiToneKernel kernel, string filename, int[] songIds, string name, string author, string copyright)
{
try
{
if (songIds.Length == 0)
{
return(false);
}
var project = originalProject.Clone();
project.RemoveAllSongsBut(songIds);
// Header
var header = new NsfHeader();
header.id[0] = (byte)'N';
header.id[1] = (byte)'E';
header.id[2] = (byte)'S';
header.id[3] = (byte)'M';
header.id[4] = (byte)0x1a;
header.version = 1;
header.numSongs = (byte)project.Songs.Count;
header.startingSong = 1;
header.loadAddr = 0x8000;
header.initAddr = NsfInitAddr;
header.playAddr = NsfPlayAddr;
header.playSpeedNTSC = 16639;
header.playSpeedPAL = 19997;
header.extensionFlags = (byte)(project.ExpansionAudio == Project.ExpansionVrc6 ? 1 : 0);
header.banks[0] = 0;
header.banks[1] = 1;
header.banks[2] = 2;
header.banks[3] = 3;
header.banks[4] = 4;
header.banks[5] = 5;
header.banks[6] = 6;
header.banks[7] = 7;
var nameBytes = Encoding.ASCII.GetBytes(name);
var artistBytes = Encoding.ASCII.GetBytes(author);
var copyrightBytes = Encoding.ASCII.GetBytes(copyright);
Marshal.Copy(nameBytes, 0, new IntPtr(header.song), Math.Min(31, nameBytes.Length));
Marshal.Copy(artistBytes, 0, new IntPtr(header.artist), Math.Min(31, artistBytes.Length));
Marshal.Copy(copyrightBytes, 0, new IntPtr(header.copyright), Math.Min(31, copyrightBytes.Length));
var headerBytes = new byte[sizeof(NsfHeader)];
Marshal.Copy(new IntPtr(&header), headerBytes, 0, headerBytes.Length);
List <byte> nsfBytes = new List <byte>();
string kernelBinary;
if (kernel == FamitoneMusicFile.FamiToneKernel.FamiTone2FS)
{
kernelBinary = project.ExpansionAudio == Project.ExpansionVrc6 ?
"nsf_ft2_fs_vrc6.bin" :
"nsf_ft2_fs.bin";
}
else
{
kernelBinary = "nsf_ft2.bin";
}
// Code/sound engine
var nsfBinStream = typeof(NsfFile).Assembly.GetManifestResourceStream("FamiStudio.Nsf." + kernelBinary);
var nsfBinBuffer = new byte[nsfBinStream.Length];
nsfBinStream.Read(nsfBinBuffer, 0, nsfBinBuffer.Length);
nsfBytes.AddRange(nsfBinBuffer);
var songTableIdx = nsfBytes.Count;
var songTableSize = NsfGlobalVarsSize + project.Songs.Count * NsfSongTableEntrySize;
nsfBytes.AddRange(new byte[songTableSize]);
var songDataIdx = nsfBytes.Count;
var dpcmBaseAddr = NsfDpcmOffset;
var dpcmPadding = 0;
if (project.UsesSamples)
{
var totalSampleSize = project.GetTotalSampleSize();
// Samples need to be 64-bytes aligned.
nsfBytes.AddRange(new byte[64 - (nsfBytes.Count & 0x3f)]);
// We start putting the samples right after the code, so the first page is not a
// full one. If we have near 16KB of samples, we might go over the 4 page limit.
// In this case, we will introduce padding until the next page.
if (nsfBytes.Count + totalSampleSize > Project.MaxSampleSize)
{
dpcmPadding = NsfPageSize - (nsfBytes.Count & (NsfPageSize - 1));
nsfBytes.AddRange(new byte[dpcmPadding]);
}
var dpcmPageStart = (nsfBytes.Count) / NsfPageSize;
var dpcmPageEnd = (nsfBytes.Count + totalSampleSize) / NsfPageSize;
var dpcmPageCount = dpcmPageEnd - dpcmPageStart + 1;
// Otherwise we will allocate at least a full page for the samples and use the following mapping:
// 0KB - 4KB samples: starts at 0xf000
// 4KB - 8KB samples: starts at 0xe000
// 8KB - 12KB samples: starts at 0xd000
// 12KB - 16KB samples: starts at 0xc000
dpcmBaseAddr += (4 - dpcmPageCount) * NsfPageSize + (nsfBytes.Count & (NsfPageSize - 1));
nsfBytes.AddRange(project.GetPackedSampleData());
nsfBytes[songTableIdx + 0] = (byte)dpcmPageStart; // DPCM_PAGE_START
nsfBytes[songTableIdx + 1] = (byte)dpcmPageCount; // DPCM_PAGE_CNT
}
// Export each song individually, build TOC at the same time.
for (int i = 0; i < project.Songs.Count; i++)
{
var song = project.Songs[i];
var firstPage = nsfBytes.Count < NsfPageSize;
int page = nsfBytes.Count / NsfPageSize + (firstPage ? 1 : 0);
int addr = NsfMemoryStart + (firstPage ? 0 : NsfPageSize) + (nsfBytes.Count & (NsfPageSize - 1));
var songBytes = new FamitoneMusicFile(kernel).GetBytes(project, new int[] { song.Id }, addr, dpcmBaseAddr);
// If we introduced padding for the samples, we can try to squeeze a song in there.
if (songBytes.Length < dpcmPadding)
{
// TODO. We should start writing at [songDataIdx] until we run out of dpcmPadding.
}
var idx = songTableIdx + NsfGlobalVarsSize + i * NsfSongTableEntrySize;
nsfBytes[idx + 0] = (byte)(page);
nsfBytes[idx + 1] = (byte)((addr >> 0) & 0xff);
nsfBytes[idx + 2] = (byte)((addr >> 8) & 0xff);
nsfBytes[idx + 3] = (byte)0;
nsfBytes.AddRange(songBytes);
}
// Finally insert the header, not very efficient, but easy.
nsfBytes.InsertRange(0, headerBytes);
File.WriteAllBytes(filename, nsfBytes.ToArray());
}
catch
{
return(false);
}
return(true);
}
public unsafe static bool Save(Project originalProject, string filename, int[] songIds, string name, string author, bool pal)
{
try
{
if (songIds.Length == 0)
{
return(false);
}
Debug.Assert(!originalProject.UsesExpansionAudio || !pal);
if (songIds.Length > MaxSongs)
{
Array.Resize(ref songIds, MaxSongs);
}
var project = originalProject.DeepClone();
project.RemoveAllSongsBut(songIds);
project.SetExpansionAudio(Project.ExpansionNone);
var headerBytes = new byte[RomHeaderLength];
var codeBytes = new byte[RomCodeSize + RomTileSize];
// Load ROM header (16 bytes) + code/tiles (12KB).
Stream romBinStream = null;
string romName = "FamiStudio.Rom.rom";
romName += pal ? "_pal" : "_ntsc";
if (project.UsesFamiStudioTempo)
{
romName += "_tempo";
}
romName += ".nes";
romBinStream = typeof(RomFile).Assembly.GetManifestResourceStream(romName);
romBinStream.Read(headerBytes, 0, RomHeaderLength);
romBinStream.Seek(-RomCodeSize - RomTileSize, SeekOrigin.End);
romBinStream.Read(codeBytes, 0, RomCodeSize + RomTileSize);
// Build project info + song table of content.
var projectInfo = new RomProjectInfo();
projectInfo.maxSong = (byte)(songIds.Length - 1);
Marshal.Copy(EncodeAndCenterString(name), 0, new IntPtr(projectInfo.name), 28);
Marshal.Copy(EncodeAndCenterString(author), 0, new IntPtr(projectInfo.author), 28);
var songTable = new RomSongEntry[MaxSongs];
for (int i = 0; i < project.Songs.Count; i++)
{
fixed(RomSongEntry *songEntry = &songTable[i])
{
songEntry->page = 0;
songEntry->address = 0x8000;
Marshal.Copy(EncodeAndCenterString(project.Songs[i].Name), 0, new IntPtr(songEntry->name), 28);
}
}
// Gather DPCM + song data.
var songDataBytes = new List <byte>();
var dpcmBaseAddr = RomDpcmOffset;
// We will put samples right at the beginning.
if (project.UsesSamples)
{
// Since we keep the code/engine at f000 all the time, we are limited to 12KB of samples in ROM.
var totalSampleSize = project.GetTotalSampleSize();
var dpcmPageCount = Math.Min(MaxDpcmPages, (totalSampleSize + (RomPageSize - 1)) / RomPageSize);
// Otherwise we will allocate at least a full page for the samples and use the following mapping:
// 0KB - 4KB samples: starts at 0xe000
// 4KB - 8KB samples: starts at 0xd000
// 8KB - 12KB samples: starts at 0xc000
dpcmBaseAddr += (MaxDpcmPages - dpcmPageCount) * RomPageSize;
var dpcmBytes = project.GetPackedSampleData();
if (dpcmBytes.Length > (MaxDpcmPages * RomPageSize))
{
Array.Resize(ref dpcmBytes, MaxDpcmPages * RomPageSize);
}
songDataBytes.AddRange(dpcmBytes);
projectInfo.dpcmPageCount = (byte)dpcmPageCount;
projectInfo.dpcmPageStart = (byte)0;
}
// Export each song individually, build TOC at the same time.
for (int i = 0; i < project.Songs.Count; i++)
{
var song = project.Songs[i];
int page = songDataBytes.Count / RomPageSize;
int addr = RomMemoryStart + (songDataBytes.Count & (RomPageSize - 1));
var songBytes = new FamitoneMusicFile(FamitoneMusicFile.FamiToneKernel.FamiStudio).GetBytes(project, new int[] { song.Id }, addr, dpcmBaseAddr, MachineType.NTSC);
songTable[i].page = (byte)(page);
songTable[i].address = (ushort)(addr);
songTable[i].flags = (byte)(song.UsesDpcm ? 1 : 0);
songDataBytes.AddRange(songBytes);
}
//File.WriteAllBytes("D:\\debug.bin", songDataBytes.ToArray());
int numPrgBanks = RomMinSize / RomPrgBankSize;
if (songDataBytes.Count > (RomMinSize - RomCodeSize))
{
numPrgBanks = (songDataBytes.Count + (RomPrgBankSize - 1)) / RomPrgBankSize;
}
int padding = (numPrgBanks * RomPrgBankSize) - RomCodeSize - songDataBytes.Count;
songDataBytes.AddRange(new byte[padding]);
// Patch in code (project info and song table are at the beginning, 0xf000).
Marshal.Copy(new IntPtr(&projectInfo), codeBytes, 0, sizeof(RomProjectInfo));
for (int i = 0; i < MaxSongs; i++)
{
fixed(RomSongEntry *songEntry = &songTable[i])
Marshal.Copy(new IntPtr(songEntry), codeBytes, sizeof(RomProjectInfo) + i * sizeof(RomSongEntry), sizeof(RomSongEntry));
}
// Patch header.
headerBytes[RomHeaderPrgOffset] = (byte)numPrgBanks;
// Build final ROM and save.
var romBytes = new List <byte>();
romBytes.AddRange(headerBytes);
romBytes.AddRange(songDataBytes);
romBytes.AddRange(codeBytes);
File.WriteAllBytes(filename, romBytes.ToArray());
}
catch
{
return(false);
}
return(true);
}
public unsafe static bool Save(Project originalProject, FamitoneMusicFile.FamiToneKernel kernel, string filename, int[] songIds, string name, string author, string copyright)
{
try
{
if (songIds.Length == 0)
{
return(false);
}
var project = originalProject.Clone();
project.RemoveAllSongsBut(songIds);
using (var file = new FileStream(filename, FileMode.Create))
{
// Header
var header = new NsfHeader();
header.id[0] = (byte)'N';
header.id[1] = (byte)'E';
header.id[2] = (byte)'S';
header.id[3] = (byte)'M';
header.id[4] = (byte)0x1a;
header.version = 1;
header.numSongs = (byte)project.Songs.Count;
header.startingSong = 1;
header.loadAddr = 0x8000;
header.initAddr = NsfInitAddr;
header.playAddr = NsfPlayAddr;
header.playSpeedNTSC = 16639;
header.playSpeedPAL = 19997;
header.banks[0] = 0;
header.banks[1] = 1;
header.banks[2] = 2;
header.banks[3] = 3;
header.banks[4] = 4;
header.banks[5] = 5;
header.banks[6] = 6;
header.banks[7] = 7;
var nameBytes = Encoding.ASCII.GetBytes(name);
var artistBytes = Encoding.ASCII.GetBytes(author);
var copyrightBytes = Encoding.ASCII.GetBytes(copyright);
Marshal.Copy(nameBytes, 0, new IntPtr(header.song), Math.Min(31, nameBytes.Length));
Marshal.Copy(artistBytes, 0, new IntPtr(header.artist), Math.Min(31, artistBytes.Length));
Marshal.Copy(copyrightBytes, 0, new IntPtr(header.copyright), Math.Min(31, copyrightBytes.Length));
var headerBytes = new byte[sizeof(NsfHeader)];
Marshal.Copy(new IntPtr(&header), headerBytes, 0, headerBytes.Length);
file.Write(headerBytes, 0, headerBytes.Length);
string kernelBinary = kernel == FamitoneMusicFile.FamiToneKernel.FamiTone2 ? "nsf_ft2.bin" : "nsf_ft2_fs.bin";
// Code/sound engine
var nsfBinStream = typeof(NsfFile).Assembly.GetManifestResourceStream("FamiStudio.Nsf." + kernelBinary);
var nsfBinBuffer = new byte[NsfCodeSize];
nsfBinStream.Read(nsfBinBuffer, 0, nsfBinBuffer.Length);
Debug.Assert(nsfBinStream.Length == NsfCodeSize);
file.Write(nsfBinBuffer, 0, nsfBinBuffer.Length);
var numDpcmPages = 0;
var dpcmBaseAddr = NsfDpcmOffset;
byte[] dpcmBytes = null;
if (project.UsesSamples)
{
var famiToneFile = new FamitoneMusicFile(kernel);
famiToneFile.GetBytes(project, null, 0, NsfDpcmOffset, out _, out dpcmBytes);
numDpcmPages = dpcmBytes != null ? (dpcmBytes.Length + NsfPageSize - 1) / NsfPageSize : 0;
// 0KB - 4KB samples: starts at 0xf000
// 4KB - 8KB samples: starts at 0xe000
// 8KB - 12KB samples: starts at 0xd000
// 12KB - 16KB samples: starts at 0xc000
dpcmBaseAddr += (4 - numDpcmPages) * 0x1000;
}
var songTable = new byte[NsfMaxSongs * 4];
var songBytes = new List <byte>();
// Export each song individually, build TOC at the same time.
for (int i = 0; i < project.Songs.Count && i < NsfMaxSongs; i++)
{
var song = project.Songs[i];
int page = songBytes.Count / NsfPageSize + 1;
int addr = NsfSongAddr + (songBytes.Count & (NsfPageSize - 1));
var famiToneFile = new FamitoneMusicFile(kernel);
famiToneFile.GetBytes(project, new int[] { song.Id }, addr, dpcmBaseAddr, out var currentSongBytes, out _);
songTable[i * 4 + 0] = (byte)(page + numDpcmPages);
songTable[i * 4 + 1] = (byte)((addr >> 0) & 0xff);
songTable[i * 4 + 2] = (byte)((addr >> 8) & 0xff);
songTable[i * 4 + 3] = (byte)(numDpcmPages); // TODO: Same value for all songs... No need to be in song table.
songBytes.AddRange(currentSongBytes);
}
// Song table
file.Write(songTable, 0, songTable.Length);
// DPCM will be on the first 4 pages (1,2,3,4)
if (project.UsesSamples && dpcmBytes != null)
{
if (songBytes.Count > NsfMaxSongSizeDpcm)
{
// TODO: Error message.
return(false);
}
Array.Resize(ref dpcmBytes, numDpcmPages * NsfPageSize);
file.Write(dpcmBytes, 0, dpcmBytes.Length);
}
else
{
if (songBytes.Count > NsfMaxSongSize)
{
// TODO: Error message.
return(false);
}
}
// Song
file.Write(songBytes.ToArray(), 0, songBytes.Count);
file.Flush();
file.Close();
}
}
catch
{
return(false);
}
return(true);
}
public unsafe bool Save(Project originalProject, string filename, int[] songIds, string name, string author, bool pal)
{
try
{
if (songIds.Length == 0)
{
return(false);
}
Debug.Assert(!originalProject.UsesExpansionAudio || !pal);
if (songIds.Length > MaxSongs)
{
Array.Resize(ref songIds, MaxSongs);
}
var project = originalProject.DeepClone();
project.RemoveAllSongsBut(songIds);
project.SetExpansionAudio(ExpansionType.None);
var headerBytes = new byte[RomHeaderLength];
var codeBytes = new byte[RomCodeSize + RomTileSize];
// Load ROM header (16 bytes) + code/tiles (12KB).
string romName = "FamiStudio.Rom.rom";
if (project.UsesFamiTrackerTempo)
{
romName += "_famitracker";
}
romName += pal ? "_pal" : "_ntsc";
romName += ".nes";
var romBinStream = typeof(RomFile).Assembly.GetManifestResourceStream(romName);
romBinStream.Read(headerBytes, 0, RomHeaderLength);
romBinStream.Seek(-RomCodeSize - RomTileSize, SeekOrigin.End);
romBinStream.Read(codeBytes, 0, RomCodeSize + RomTileSize);
Log.LogMessage(LogSeverity.Info, $"ROM code and graphics size: {codeBytes.Length} bytes.");
// Build project info + song table of content.
var projectInfo = BuildProjectInfo(songIds, name, author);
var songTable = BuildSongTableOfContent(project);
// Gather DPCM + song data.
var songDataBytes = new List <byte>();
var dpcmBaseAddr = RomDpcmOffset;
// We will put samples right at the beginning.
if (project.UsesSamples)
{
// Since we keep the code/engine at f000 all the time, we are limited to 12KB of samples in ROM.
var totalSampleSize = project.GetTotalSampleSize();
var dpcmPageCount = Math.Min(MaxDpcmPages, (totalSampleSize + (RomPageSize - 1)) / RomPageSize);
// Otherwise we will allocate at least a full page for the samples and use the following mapping:
// 0KB - 4KB samples: starts at 0xe000
// 4KB - 8KB samples: starts at 0xd000
// 8KB - 12KB samples: starts at 0xc000
dpcmBaseAddr += (MaxDpcmPages - dpcmPageCount) * RomPageSize;
var dpcmBytes = project.GetPackedSampleData();
if (dpcmBytes.Length > (MaxDpcmPages * RomPageSize))
{
Log.LogMessage(LogSeverity.Warning, $"DPCM samples size ({dpcmBytes.Length}) is larger than the maximum allowed for ROM export ({MaxDpcmPages * RomPageSize}). Truncating.");
Array.Resize(ref dpcmBytes, MaxDpcmPages * RomPageSize);
}
songDataBytes.AddRange(dpcmBytes);
projectInfo.dpcmPageCount = (byte)dpcmPageCount;
projectInfo.dpcmPageStart = (byte)0;
Log.LogMessage(LogSeverity.Info, $"DPCM allocated size: {dpcmPageCount * RomPageSize} bytes.");
}
// Export each song individually, build TOC at the same time.
for (int i = 0; i < project.Songs.Count; i++)
{
var song = project.Songs[i];
int page = songDataBytes.Count / RomPageSize;
int addr = RomMemoryStart + (songDataBytes.Count & (RomPageSize - 1));
var songBytes = new FamitoneMusicFile(FamiToneKernel.FamiStudio, false).GetBytes(project, new int[] { song.Id }, addr, dpcmBaseAddr, pal ? MachineType.PAL : MachineType.NTSC);
songTable[i].page = (byte)(page);
songTable[i].address = (ushort)(addr);
songTable[i].flags = (byte)(song.UsesDpcm ? 1 : 0);
songDataBytes.AddRange(songBytes);
Log.LogMessage(LogSeverity.Info, $"Song '{song.Name}' size: {songBytes.Length} bytes.");
}
//File.WriteAllBytes("D:\\debug.bin", songDataBytes.ToArray());
int numPrgBanks = RomMinSize / RomPrgBankSize;
if (songDataBytes.Count > (RomMinSize - RomCodeSize))
{
numPrgBanks = (songDataBytes.Count + (RomPrgBankSize - 1)) / RomPrgBankSize;
}
int padding = (numPrgBanks * RomPrgBankSize) - RomCodeSize - songDataBytes.Count;
songDataBytes.AddRange(new byte[padding]);
// Patch in code (project info and song table are at the beginning, 0xf000).
Marshal.Copy(new IntPtr(&projectInfo), codeBytes, 0, sizeof(RomProjectInfo));
for (int i = 0; i < MaxSongs; i++)
{
fixed(RomSongEntry *songEntry = &songTable[i])
Marshal.Copy(new IntPtr(songEntry), codeBytes, sizeof(RomProjectInfo) + i * sizeof(RomSongEntry), sizeof(RomSongEntry));
}
// Patch header.
headerBytes[RomHeaderPrgOffset] = (byte)numPrgBanks;
// Build final ROM and save.
var romBytes = new List <byte>();
romBytes.AddRange(headerBytes);
romBytes.AddRange(songDataBytes);
romBytes.AddRange(codeBytes);
File.WriteAllBytes(filename, romBytes.ToArray());
Log.LogMessage(LogSeverity.Info, $"ROM export successful, final file size {romBytes.Count} bytes.");
}
catch (Exception e)
{
Log.LogMessage(LogSeverity.Error, "Please contact the developer on GitHub!");
Log.LogMessage(LogSeverity.Error, e.Message);
Log.LogMessage(LogSeverity.Error, e.StackTrace);
return(false);
}
return(true);
}
