private static List<LoffBlock.RoomOffset> ReadRoomOffsets(ScummBinaryReader reader, byte numRooms)
{
var result = new List<LoffBlock.RoomOffset>();
for (int i = 0; i < numRooms; i++)
{
var offset = new LoffBlock.RoomOffset
{
RoomId = reader.ReadByte(),
Offset = reader.ReadUInt32()
};
result.Add(offset);
}
return result;
}
private static List <LoffBlock.RoomOffset> ReadRoomOffsets(ScummBinaryReader reader, byte numRooms)
{
var result = new List <LoffBlock.RoomOffset>();
for (int i = 0; i < numRooms; i++)
{
var offset = new LoffBlock.RoomOffset
{
RoomId = reader.ReadByte(),
Offset = reader.ReadUInt32()
};
result.Add(offset);
}
return(result);
}
private ResourceIndexEntry[] ReadResourceReferenceList(ScummBinaryReader reader, ref ushort itemsCount)
{
itemsCount = reader.ReadUInt16();
var resourceReferenceList = new ResourceIndexEntry[itemsCount];
var roomIdList = new byte[itemsCount];
for (int i = 0; i < itemsCount; i++)
{
roomIdList[i] = reader.ReadByte();
}
for (int i = 0; i < itemsCount; i++)
{
var resourceOffset = reader.ReadUInt32();
resourceReferenceList[i] = new ResourceIndexEntry(roomIdList[i], resourceOffset);
}
return(resourceReferenceList);
}
public override Resource LoadResourceData(ScummBinaryReader reader, string resourceId, IDictionary <string, object> parameters)
{
var charset = new Charset(resourceId);
uint blockSize = reader.FindDataBlock("CHAR");
if (blockSize == 0)
{
throw new InvalidOperationException("Could not find the script header block.");
}
// Load the room palette associated with the charset
// (huge hack - I have no idea what to do when room is 0)
if ((byte)parameters["RoomId"] == 0)
{
parameters["RoomId"] = (byte)10;
}
long keepPos = reader.BaseStream.Position;
var roomPalette = this.resourceManager.Load <Room>("ROOM", (byte)parameters["RoomId"]).Palette;
reader.BaseStream.Position = keepPos;
// Read charset header information
var unknown = reader.ReadBytes(6);
byte[] colormap = new byte[16];
colormap[0] = 0;
for (int i = 0; i < 15; ++i)
{
colormap[i + 1] = reader.ReadByte();
}
long initPosition = reader.BaseStream.Position;
byte numBitsPerPixel = reader.ReadByte();
byte bitMask = (byte)(0xFF << (8 - numBitsPerPixel));
byte fontHeight = reader.ReadByte();
short numChars = reader.ReadInt16();
uint[] offsets = new uint[numChars];
for (int i = 0; i < numChars; ++i)
{
offsets[i] = reader.ReadUInt32();
}
// Read each char
for (int i = 0; i < numChars; ++i)
{
if (offsets[i] == 0)
{
continue;
}
reader.BaseStream.Position = initPosition + offsets[i];
charset.Chars[i].width = reader.ReadByte();
charset.Chars[i].height = reader.ReadByte();
// a flag is needed to disable offX
charset.Chars[i].offX = 0; reader.ReadByte();
charset.Chars[i].offY = reader.ReadByte();
charset.Chars[i].pic = new Texture2D(graphicsDevice, charset.Chars[i].width, charset.Chars[i].height);
byte[] bytes = new byte[charset.Chars[i].width * charset.Chars[i].height * 4];
Byte bits = reader.ReadByte();
Byte remainingBits = 8;
for (int y = 0; y < charset.Chars[i].height; ++y)
{
for (int x = 0; x < charset.Chars[i].width; ++x)
{
long colorId = (bits & bitMask) >> (8 - numBitsPerPixel);
long color = colormap[colorId];
byte alpha = 255;
if (colorId == 0)
{
alpha = 0;
}
bytes[(y * charset.Chars[i].width + x) * 4] = roomPalette[color].R;
bytes[(y * charset.Chars[i].width + x) * 4 + 1] = roomPalette[color].G;
bytes[(y * charset.Chars[i].width + x) * 4 + 2] = roomPalette[color].B;
bytes[(y * charset.Chars[i].width + x) * 4 + 3] = alpha;
bits = (byte)(bits << numBitsPerPixel);
remainingBits -= numBitsPerPixel;
if (remainingBits <= 0)
{
bits = reader.ReadByte();
remainingBits = 8;
}
}
}
charset.Chars[i].pic.SetData(bytes);
}
return(charset);
}
public override Resource LoadResourceData(ScummBinaryReader reader, string resourceId, IDictionary <string, object> parameters)
{
// TODO: If the anim is mirrored, point to the same textures and do a matrix transform while rendering the costume
var costume = new Costume(resourceId);
// Read Room Header information
if (reader.FindDataBlock("COST") == 0)
{
throw new InvalidOperationException("Could not find the costume header block.");
}
reader.BaseStream.Position -= 6;
var startOffset = reader.BaseStream.Position;
var size = reader.ReadUInt32();
var test = ((char)reader.ReadByte()).ToString() + ((char)reader.ReadByte()).ToString();
var animationsCount = reader.ReadByte();
var format = reader.ReadByte();
var paletteSize = ((format & 0x7F) == 0x58 || (format & 0x7F) == 0x60) ? 16 : 32;
var containsRedirection = ((format & 0x7E) == 0x60);
var mirrorWestPositions = (format & 0x80) == 0;
// TODO: Decode bit 7
// TODO : Read the full palette
var palette = new byte[paletteSize];
for (int i = 0; i < paletteSize; i++)
{
palette[i] = reader.ReadByte();
}
var animationCommandOffset = reader.ReadUInt16();
// Read limb offsets
var limbOffsets = new ushort[16];
for (int i = 0; i < 16; i++)
{
limbOffsets[i] = reader.ReadUInt16();
}
// Read animation offsets
var animationOffsets = new ushort[animationsCount];
for (int i = 0; i < animationOffsets.Length; i++)
{
animationOffsets[i] = reader.ReadUInt16();
}
// Load the room palette associated with the costume
// (huge hack - I have no idea what to do when room is 0)
if ((byte)parameters["RoomId"] == 0)
{
parameters["RoomId"] = (byte)10;
}
var roomPalette = this.resourceManager.Load <Room>("ROOM", (byte)parameters["RoomId"]).Palette;
for (int i = 4; i < animationsCount; i++)
{
try
{
var animation = LoadAnimation(reader, resourceId, i, startOffset, animationOffsets, limbOffsets, animationCommandOffset, palette, roomPalette, containsRedirection, (i % 4) == 0 && mirrorWestPositions);
costume.Animations.Add(animation);
}
// TODO: Remove the empty catch later
catch { }
}
return(costume);
}
private void ReadSMAP(ScummBinaryReader reader, Image image, Color[] roomPalette)
{
var smapStartOffset = reader.BaseStream.Position;
var stripesCount = image.Width / 8;
// Create the texture data array
var textureData = new byte[image.Width * image.Height * 4];
var stripeOffsets = new uint[stripesCount];
// Read the offset table
for (int i = 0; i < stripesCount; i++)
{
var offset = reader.ReadUInt32() - 8;
stripeOffsets[i] = offset;
}
// Read and decode each stripes
for (int i = 0; i < stripesCount; i++)
{
reader.BaseStream.Position = smapStartOffset + stripeOffsets[i];
var stripeHeader = reader.ReadByte();
var codingShift = (byte)(stripeHeader % 10);
var encoderType = stripeHeader / 10;
byte[] decodedData = null;
if (encoderType == (int)EncoderType.UnkAOpaque)
{
decodedData = DecodeUnkAStripe(reader, codingShift, image.Height, roomPalette);
}
else if (encoderType == (int)EncoderType.UnkBOpaque)
{
decodedData = DecodeUnkBStripe(reader, codingShift, image.Height, roomPalette);
}
else if (encoderType == (int)EncoderType.UnkCOpaque)
{
decodedData = DecodeUnkCStripe(reader, codingShift, image.Height, roomPalette);
}
if (decodedData != null)
{
int decodedDataIndex = 0;
for (int j = 0; j < image.Height; j++)
{
for (int k = 0; k < 8; k++)
{
var pixelIndex = i * 32 + j * image.Width * 4 + k * 4;
textureData[pixelIndex] = decodedData[decodedDataIndex];
textureData[pixelIndex + 1] = decodedData[decodedDataIndex + 1];
textureData[pixelIndex + 2] = decodedData[decodedDataIndex + 2];
textureData[pixelIndex + 3] = decodedData[decodedDataIndex + 3];
decodedDataIndex += 4;
}
}
}
}
image.Texture = new Microsoft.Xna.Framework.Graphics.Texture2D(graphicsDevice, image.Width, image.Height, false, Microsoft.Xna.Framework.Graphics.SurfaceFormat.Color);
image.Texture.SetData(textureData);
}
private void ReadIndexBlock(ScummBinaryReader reader, string blockType)
{
if (blockType == "RNAM")
{
byte roomId = reader.ReadByte();
while (roomId != 0)
{
var roomNameData = reader.ReadBytes(9);
var roomName = string.Empty;
for (int i = 0; i < roomNameData.Length; i++)
{
roomName += (char)(roomNameData[i] ^ 0xFF);
}
roomId = reader.ReadByte();
}
}
else if (blockType == "MAXS")
{
var variablesCount = reader.ReadUInt16();
// Skip 2 bytes
reader.ReadUInt16();
uint bitVariablesCount = reader.ReadUInt16();
uint localObjectsCount = reader.ReadUInt16();
uint newNamesCount = reader.ReadUInt16();
uint charsetsCount = reader.ReadUInt16();
uint verbsCount = reader.ReadUInt16();
uint arraysCount = reader.ReadUInt16();
uint inventoryObjectsCount = reader.ReadUInt16();
}
else if (blockType == "DROO")
{
// just read, not keeping anything besides roomsCount
ReadResourceReferenceList(reader, ref roomsCount);
}
else if (blockType == "DSCR")
{
this.scriptsIndexList = ReadResourceReferenceList(reader, ref scriptsCount);
}
else if (blockType == "DSOU")
{
this.soundsIndexList = ReadResourceReferenceList(reader, ref soundsCount);
}
else if (blockType == "DCOS")
{
this.costumesIndexList = ReadResourceReferenceList(reader, ref costumesCount);
}
else if (blockType == "DCHR")
{
this.charsetsIndexList = ReadResourceReferenceList(reader, ref charsetsCount);
}
else if (blockType == "DOBJ")
{
uint itemsCount = reader.ReadUInt16();
objects = new Object[itemsCount];
for (int i = 0; i < itemsCount; i++)
{
objects[i] = new Object();
objects[i].Id = (UInt16)i;
objects[i].OwnerState = reader.ReadByte();
}
for (int i = 0; i < itemsCount; i++)
{
objects[i].ClassData = reader.ReadUInt32();
}
}
else if (blockType == "AARY")
{
}
else
{
//throw new InvalidOperationException(string.Format("Cannot read block of type '{0}' in the index file.", blockType));
}
}