public static byte[] LZ77_Compress(byte[] data, bool header = false)
{
ByteArrayOutputStream res = new ByteArrayOutputStream();
if (header)
{
res.writeUInt(0x37375A4C); //LZ77
}
res.writeInt((data.Length << 8) | 0x10);
byte[] tempBuffer = new byte[16];
//Current byte to compress.
int current = 0;
while (current < data.Length)
{
int tempBufferCursor = 0;
byte blockFlags = 0;
for (int i = 0; i < 8; i++)
{
//Not sure if this is needed. The DS probably ignores this data.
if (current >= data.Length)
{
tempBuffer[tempBufferCursor++] = 0;
continue;
}
int searchPos = 0;
int searchLen = 0;
LZ77_Compress_Search(data, current, out searchPos, out searchLen);
int searchDisp = current - searchPos - 1;
if (searchLen > 2) //We found a big match, let's write a compressed block.
{
blockFlags |= (byte)(1 << (7 - i));
tempBuffer[tempBufferCursor++] = (byte)((((searchLen - 3) & 0xF) << 4) + ((searchDisp >> 8) & 0xF));
tempBuffer[tempBufferCursor++] = (byte)(searchDisp & 0xFF);
current += searchLen;
}
else
{
tempBuffer[tempBufferCursor++] = data[current++];
}
}
res.writeByte(blockFlags);
for (int i = 0; i < tempBufferCursor; i++)
{
res.writeByte(tempBuffer[i]);
}
}
return(res.getArray());
}
public void writeZone(ByteArrayOutputStream outp)
{
outp.writeUShort((ushort)X);
outp.writeUShort((ushort)Y);
outp.writeUShort((ushort)Width);
outp.writeUShort((ushort)Height);
outp.writeByte((byte)Number);
outp.writeByte(0);
outp.writeByte(0);
outp.writeByte(0);
}
public void save(ByteArrayOutputStream outp)
{
foreach (List <ObjectDefTile> row in tiles)
{
foreach (ObjectDefTile t in row)
{
t.write(outp);
}
outp.writeByte(0xFE); //new line
}
outp.writeByte(0xFF); //end object
}
public void saveObjects()
{
ByteArrayOutputStream eObjIndexFile = new ByteArrayOutputStream();
ByteArrayOutputStream eObjFile = new ByteArrayOutputStream();
for (int i = 0; i < Objects.Length; i++)
{
if (Objects[i] == null)
{
break;
}
eObjIndexFile.writeUShort((ushort)eObjFile.getPos());
eObjIndexFile.writeByte((byte)Objects[i].width);
eObjIndexFile.writeByte((byte)Objects[i].height);
Objects[i].save(eObjFile);
}
ObjFile.replace(eObjFile.getArray(), this);
ObjIndexFile.replace(eObjIndexFile.getArray(), this);
}
public void write(ByteArrayOutputStream outp)
{
if (controlTile)
{
outp.writeByte(controlByte);
}
else if (emptyTile)
{
outp.writeByte(controlByte);
outp.writeByte(0);
outp.writeByte(0);
}
else
{
outp.writeByte(controlByte);
outp.writeByte((byte)(tileID % 256));
outp.writeByte((byte)(tileID / 256 + t.ObjectDefTileOffset));
}
}
public void write(ByteArrayOutputStream outp, ByteArrayOutputStream cam, int camID)
{
outp.writeUShort((ushort)X);
outp.writeUShort((ushort)Y);
outp.writeUShort((ushort)Width);
outp.writeUShort((ushort)Height);
outp.writeByte((byte)Number);
outp.writeByte((byte)camID);
outp.writeByte((byte)Music);
outp.writeByte((byte)Unknown1);
outp.writeByte((byte)Unknown2);
outp.writeByte((byte)Unknown3);
outp.writeByte((byte)Lighting);
outp.writeByte((byte)FlagpoleID);
cam.writeInt(CameraTop);
cam.writeInt(CameraBottom);
cam.writeInt(CameraTopSpin);
cam.writeInt(CameraBottomSpin);
cam.writeUShort((ushort)camID);
cam.writeUShort((ushort)CameraBottomStick);
cam.writeUInt(0); //This seems just padding.
}
private void importPNGButton_Click(object sender, EventArgs e)
{
getFiles();
if (GFXFile == null)
{
return;
}
if (PalFile == null)
{
return;
}
if (LayoutFile == null)
{
return;
}
// Create a local copy because the global variables could be overwritten while the background is importing
File myGFXFile = GFXFile;
File myPalFile = PalFile;
File myLayoutFile = LayoutFile;
int offs = bg.topLayer ? 256 : 576;
int palOffs = bg.topLayer ? 8 : 10;
if (bg.mappedTileset)
{
offs = 192;
palOffs = 2;
}
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = LanguageManager.Get("Filters", "png");
ofd.CheckFileExists = true;
if (ofd.ShowDialog() != DialogResult.OK)
{
return;
}
string filename = ofd.FileName;
Bitmap b = new Bitmap(filename);
if (b.Size != new Size(512, 512))
{
throw new Exception("Wrong image size");
}
BgPNGImportPrompt bgPrompt = new BgPNGImportPrompt(bg.topLayer, bg.mappedTileset);
if (!bgPrompt.finished)
{
return;
}
ImageTiler ti;
if (bg.topLayer)
{
bgPrompt.bgFirstTileOffset = 0;
ti = new ImageTiler(b, new Size(256, bgPrompt.fgHeightInPixels), new Size(512, 512), 50);
}
else
{
ti = new ImageTiler(b, new Size(256, bgPrompt.bgHeightInPixels), new Size(512, 512), 50);
}
Color[] palette = ImageIndexer.createPaletteForImage(b);
ByteArrayOutputStream oo = new ByteArrayOutputStream();
for (int i = 0; i < palette.Length; i++)
{
oo.writeUShort(NSMBTileset.toRGB15(palette[i]));
}
ByteArrayOutputStream offsetBitmapData = new ByteArrayOutputStream();
for (int i = 0; i < 256 * bgPrompt.bgFirstTileOffset; i++)
{
offsetBitmapData.writeByte(0);
}
//byte[] newBitmapData = ImageIndexer.indexImageWithPalette(ti.tileBuffer, palette);
byte[] newBitmapData = new byte[offsetBitmapData.getArray().Length + ImageIndexer.indexImageWithPalette(ti.tileBuffer, palette).Length];
Buffer.BlockCopy(offsetBitmapData.getArray(), 0, newBitmapData, 0, offsetBitmapData.getArray().Length);
Buffer.BlockCopy(ImageIndexer.indexImageWithPalette(ti.tileBuffer, palette), 0, newBitmapData, offsetBitmapData.getArray().Length, ImageIndexer.indexImageWithPalette(ti.tileBuffer, palette).Length);
myPalFile.beginEdit(this);
myPalFile.replace(ROM.LZ77_Compress(oo.getArray()), this);
myPalFile.endEdit(this);
myGFXFile.beginEdit(this);
myGFXFile.replace(ROM.LZ77_Compress(newBitmapData), this);
myGFXFile.endEdit(this);
b.Dispose();
ByteArrayOutputStream layout = new ByteArrayOutputStream();
for (int y = 0; y < ti.heightTileCount; y++)
{
for (int x = 0; x < ti.widthTileCount; x++)
{
layout.writeUShort((ushort)((ti.tileMap[x, y] + offs + (bgPrompt.bgFirstTileOffset * 4)) | (palOffs << 12)));
}
}
myLayoutFile.beginEdit(this);
myLayoutFile.replace(ROM.LZ77_Compress(layout.getArray()), this);
myLayoutFile.endEdit(this);
}
