public static Bitmap Render(ROM game, Tileset major, Tileset minor, Map map)
{
Bitmap TilesetImage = new Bitmap(128, 2560);
Graphics tsGraphics = Graphics.FromImage(TilesetImage);
BinaryReader ReadROM = new BinaryReader(File.Open(game.FilePath, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite));
tsGraphics.Clear(Color.FromArgb(24, 48, 80)); // Background color
// Reading Palettes
ushort[] GBAPalettes = new ushort[256];
ReadROM.BaseStream.Position = minor.Palette - 0x8000000;
for (int i = 0; i < 208; i++)
{
GBAPalettes[i] = ReadROM.ReadUInt16();
}
int[] BlockLimit = new int[2]; // Block limits for the 2 tilesets
int[] TilesetSize = new int[2]; // Tileset filesize of the 2 tilesets
int MajorPalettes; // Number of palettes for the major tileset
if (game.GameCode.Substring(0, 3) == "BPR" || game.GameCode.Substring(0, 3) == "BPG")
{
MajorPalettes = 112;
BlockLimit[0] = 640;
BlockLimit[1] = 512;
TilesetSize[0] = 0x5000;
TilesetSize[1] = 0X5000;
}
else
{
MajorPalettes = 96;
BlockLimit[0] = 512;
BlockLimit[1] = 512;
TilesetSize[0] = 0x4000;
TilesetSize[1] = 0X5000;
}
ReadROM.BaseStream.Position = major.Palette - 0x8000000;
for (int i = 0; i < MajorPalettes; i++)
{
GBAPalettes[i] = ReadROM.ReadUInt16();
}
PaletteHook(GBAPalettes, map);
// Reading Tileset
uint[] TilesetImageOffsets = new uint[2] {
major.Image - 0x8000000, minor.Image - 0x8000000
};
List <byte> Gfx = new List <byte>();
for (int i = 0; i < 2; i++)
{
ReadROM.BaseStream.Position = TilesetImageOffsets[i];
byte[] RawGfx = ReadROM.ReadBytes(TilesetSize[i]);
if (RawGfx[0] == 0x10) // Check for LZ77 compression
{
Gfx.AddRange(Decode(LZ77.Uncompress(RawGfx)));
}
else
{
Gfx.AddRange(Decode(RawGfx));
}
if (i == 0 && Gfx.Count < 0x8000)
{
for (int ii = 0; ii < 640; ii++)
{
Gfx.Add(0x0);
}
}
}
byte[] TilesetGfx = Gfx.ToArray();
// Decoding Palettes
Color[] Palettes = new Color[256];
for (int i = 0; i < 256; i++)
{
Palettes[i] = GBAGraphics.DecodePalette(GBAPalettes[i]);
}
// Drawing Tileset
FastPixel fp = new FastPixel(TilesetImage);
uint[] TilesetBlockDataOffset = new uint[2] {
major.BlockData - 0x8000000, minor.BlockData - 0x8000000
};
int x = 0;
int y = 0;
byte[] PositionX = new byte[4] {
0, 8, 0, 8
};
byte[] PositionY = new byte[4] {
0, 0, 8, 8
};
fp.rgbValues = new byte[TilesetImage.Width * TilesetImage.Height * 4];
fp.Lock();
for (int Tileset = 0; Tileset < 2; Tileset++) // 2 Tilesets
{
ReadROM.BaseStream.Position = TilesetBlockDataOffset[Tileset];
for (int i = 0; i < BlockLimit[Tileset]; i++) // Amount of tiles for each tileset (block number)
{
for (int Layer = 0; Layer < 2; Layer++) // 2 Layers (Bottom & Top)
{
for (int Tile = 0; Tile < 4; Tile++) // 4 Tiles for each layer
{
ushort TileData = ReadROM.ReadUInt16();
int TileIndex = TileData & 0x3FF;
int FlipX = (TileData & 0x400) >> 10;
int FlipY = (TileData & 0x800) >> 11;
int PalIndex = (TileData & 0xF000) >> 12;
DrawTile8(fp, TilesetGfx, TileIndex, x * 16 + PositionX[Tile], y * 16 + PositionY[Tile], FlipX == 1, FlipY == 1, PalIndex, Palettes);
}
}
x++;
if (x == 8)
{
x = 0;
y++;
}
}
}
fp.Unlock(true);
ReadROM.Close();
return(TilesetImage);
}