public void Deserialize(Stream input)
{
var version = input.ReadValueU16();
if (version < 2 || version > 5)
{
throw new FormatException("unsupported cfs version");
}
var header = new Sprite.Header();
if (version >= 5)
{
header = input.ReadStructure <Sprite.Header>();
}
else if (version >= 4)
{
var oldHeader = input.ReadStructure <Sprite.OldHeader4>();
header.FrameCount = oldHeader.FrameCount;
header.AnimationTime = oldHeader.AnimationTime;
header.Width = oldHeader.Width;
header.Height = oldHeader.Height;
header.RowCount = oldHeader.RowCount;
header.ColumnCount = oldHeader.ColumnCount;
header.ShadowCount = oldHeader.ShadowCount;
header.LightCount = oldHeader.LightCount;
header.UserDataSize = oldHeader.UserDataSize;
header.CompressionFlags = (Sprite.CompressionFlags)oldHeader.CompressionFlags;
header.MaxSolidIndex = oldHeader.MaxSolidIndex;
header.DataSize = oldHeader.DataSize;
header.Category = oldHeader.Category;
header.BlitMode = oldHeader.BlitMode;
header.RowMeaning = oldHeader.RowMeaning;
header.YSortAdjust = oldHeader.YSortAdjust;
header.SortTransform = oldHeader.SortTransform;
header.UserPaletteStart = oldHeader.UserPaletteStart;
header.UserPalette = oldHeader.UserPalette;
header.Description = oldHeader.Description;
}
else if (version >= 3)
{
var oldHeader = input.ReadStructure <Sprite.OldHeader3>();
header.FrameCount = oldHeader.FrameCount;
header.AnimationTime = oldHeader.AnimationTime;
header.Width = oldHeader.Width;
header.Height = oldHeader.Height;
header.RowCount = oldHeader.RowCount;
header.ColumnCount = oldHeader.ColumnCount;
header.ShadowCount = oldHeader.ShadowCount;
header.LightCount = oldHeader.LightCount;
header.UserDataSize = oldHeader.UserDataSize;
header.CompressionFlags = (Sprite.CompressionFlags)oldHeader.CompressionFlags;
header.MaxSolidIndex = oldHeader.MaxSolidIndex;
header.DataSize = oldHeader.DataSize;
header.Category = oldHeader.Category;
header.BlitMode = oldHeader.BlitMode;
header.RowMeaning = oldHeader.RowMeaning;
header.YSortAdjust = oldHeader.YSortAdjust;
header.SortTransform = oldHeader.SortTransform;
header.UserPaletteStart = oldHeader.UserPaletteStart;
header.UserPalette = oldHeader.UserPalette;
}
else if (version >= 1)
{
var oldHeader = input.ReadStructure <Sprite.OldHeader2>();
header.FrameCount = oldHeader.FrameCount;
header.AnimationTime = oldHeader.AnimationTime;
header.Width = oldHeader.Width;
header.Height = oldHeader.Height;
header.RowCount = oldHeader.RowCount;
header.ColumnCount = oldHeader.ColumnCount;
header.ShadowCount = oldHeader.ShadowCount;
header.LightCount = oldHeader.LightCount;
header.UserDataSize = oldHeader.UserDataSize;
header.CompressionFlags = (Sprite.CompressionFlags)oldHeader.CompressionFlags;
header.MaxSolidIndex = oldHeader.MaxSolidIndex;
header.DataSize = oldHeader.DataSize;
}
if (header.LightCount != 0 &&
header.LightCount != 32)
{
throw new FormatException();
}
if (header.ShadowCount != 0 &&
header.ShadowCount != 8)
{
throw new FormatException();
}
this.AnimationTime = header.AnimationTime;
this.Width = header.Width;
this.Height = header.Height;
this.RowCount = header.RowCount;
this.ColumnCount = header.ColumnCount;
this.ShadowCount = header.ShadowCount;
this.LightCount = header.LightCount;
this.MaxSolidIndex = header.MaxSolidIndex;
this.CompressionFlags = header.CompressionFlags;
this.Category = header.Category;
this.Description = header.Description;
for (int i = 0; i < this.Palette.Length; i++)
{
this.Palette[i] = input.ReadValueU32();
}
this.UserData = new byte[header.UserDataSize];
if (input.Read(this.UserData, 0, this.UserData.Length) != this.UserData.Length)
{
throw new FormatException();
}
var infos = new Sprite.FrameInfo[header.FrameCount];
for (int i = 0; i < infos.Length; i++)
{
infos[i] = input.ReadStructure <Sprite.FrameInfo>();
}
var compressionFlags = (uint)header.CompressionFlags;
if ((compressionFlags & ~0x1FFu) != 0)
{
throw new FormatException("unknown compression flags");
}
if (header.Unknown20 != 0 &&
header.Unknown20 != 3)
{
// WHAT DOES THIS VALUE MEAN AUGH
throw new NotSupportedException();
}
if ((header.CompressionFlags &
Sprite.CompressionFlags.NoCompression) != 0)
{
if ((header.CompressionFlags &
~(Sprite.CompressionFlags.NoPixels | Sprite.CompressionFlags.NoCompression)) != 0)
{
throw new FormatException("other compression flags set with NoCompression flag");
}
}
using (var data = input.ReadToMemoryStream(header.DataSize))
{
this.Frames = new Sprite.Frame[header.FrameCount];
for (int i = 0; i < header.FrameCount; i++)
{
var info = infos[i];
data.Seek(info.Offset, SeekOrigin.Begin);
var frame = this.Frames[i] = new Sprite.Frame();
frame.X = info.X;
frame.Y = info.Y;
frame.Width = Math.Abs(info.Width);
frame.Height = Math.Abs(info.Height);
frame.Pixels = new byte[frame.Width * frame.Height];
if ((header.CompressionFlags &
Sprite.CompressionFlags.NoCompression) != 0)
{
// uncompressed data
data.Read(frame.Pixels, 0, frame.Pixels.Length);
}
else
{
// compressed data
var lengths = new int[frame.Height];
var max = 0;
for (int y = 0; y < frame.Height; y++)
{
int length = data.ReadValueU8();
if (length == 0xFF)
{
length = data.ReadValueU16();
}
lengths[y] = length;
max = Math.Max(max, length);
}
var scanline = new byte[max];
for (int y = 0, offset = 0; y < frame.Height; y++, offset = y * frame.Width)
{
var length = lengths[y];
if (data.Read(scanline, 0, length) != length)
{
throw new FormatException();
}
for (int x = 0; x < length;)
{
offset += (scanline[x] >> 4) & 0xF; // transparent
var literalCount = scanline[x] & 0xF;
if (literalCount > 0)
{
Array.Copy(scanline, x + 1, frame.Pixels, offset, literalCount);
}
offset += literalCount;
x += 1 + literalCount;
}
}
}
// flip horizontal
if (info.Width < 0)
{
for (int y = 0, offset = 0; y < frame.Height; y++, offset += frame.Width)
{
Array.Reverse(frame.Pixels, offset, frame.Width);
}
}
// flip vertical
if (info.Height < 0)
{
var scanline = new byte[frame.Height];
for (int x = 0; x < frame.Width; x++)
{
for (int y = 0, offset = x; y < frame.Height; y++, offset += frame.Width)
{
scanline[y] = frame.Pixels[offset];
}
for (int y = 0, offset = x; y < frame.Height; y++, offset += frame.Width)
{
frame.Pixels[offset] = scanline[frame.Height - 1 - y];
}
}
}
}
}
}
public void Deserialize(Stream input)
{
var version = input.ReadValueU16();
if (version < 2 || version > 5)
{
throw new FormatException("unsupported cfs version");
}
var header = new Sprite.Header();
if (version >= 5)
{
header = input.ReadStructure<Sprite.Header>();
}
else if (version >= 4)
{
var oldHeader = input.ReadStructure<Sprite.OldHeader4>();
header.FrameCount = oldHeader.FrameCount;
header.AnimationTime = oldHeader.AnimationTime;
header.Width = oldHeader.Width;
header.Height = oldHeader.Height;
header.RowCount = oldHeader.RowCount;
header.ColumnCount = oldHeader.ColumnCount;
header.ShadowCount = oldHeader.ShadowCount;
header.LightCount = oldHeader.LightCount;
header.UserDataSize = oldHeader.UserDataSize;
header.CompressionFlags = (Sprite.CompressionFlags)oldHeader.CompressionFlags;
header.MaxSolidIndex = oldHeader.MaxSolidIndex;
header.DataSize = oldHeader.DataSize;
header.Category = oldHeader.Category;
header.BlitMode = oldHeader.BlitMode;
header.RowMeaning = oldHeader.RowMeaning;
header.YSortAdjust = oldHeader.YSortAdjust;
header.SortTransform = oldHeader.SortTransform;
header.UserPaletteStart = oldHeader.UserPaletteStart;
header.UserPalette = oldHeader.UserPalette;
header.Description = oldHeader.Description;
}
else if (version >= 3)
{
var oldHeader = input.ReadStructure<Sprite.OldHeader3>();
header.FrameCount = oldHeader.FrameCount;
header.AnimationTime = oldHeader.AnimationTime;
header.Width = oldHeader.Width;
header.Height = oldHeader.Height;
header.RowCount = oldHeader.RowCount;
header.ColumnCount = oldHeader.ColumnCount;
header.ShadowCount = oldHeader.ShadowCount;
header.LightCount = oldHeader.LightCount;
header.UserDataSize = oldHeader.UserDataSize;
header.CompressionFlags = (Sprite.CompressionFlags)oldHeader.CompressionFlags;
header.MaxSolidIndex = oldHeader.MaxSolidIndex;
header.DataSize = oldHeader.DataSize;
header.Category = oldHeader.Category;
header.BlitMode = oldHeader.BlitMode;
header.RowMeaning = oldHeader.RowMeaning;
header.YSortAdjust = oldHeader.YSortAdjust;
header.SortTransform = oldHeader.SortTransform;
header.UserPaletteStart = oldHeader.UserPaletteStart;
header.UserPalette = oldHeader.UserPalette;
}
else if (version >= 1)
{
var oldHeader = input.ReadStructure<Sprite.OldHeader2>();
header.FrameCount = oldHeader.FrameCount;
header.AnimationTime = oldHeader.AnimationTime;
header.Width = oldHeader.Width;
header.Height = oldHeader.Height;
header.RowCount = oldHeader.RowCount;
header.ColumnCount = oldHeader.ColumnCount;
header.ShadowCount = oldHeader.ShadowCount;
header.LightCount = oldHeader.LightCount;
header.UserDataSize = oldHeader.UserDataSize;
header.CompressionFlags = (Sprite.CompressionFlags)oldHeader.CompressionFlags;
header.MaxSolidIndex = oldHeader.MaxSolidIndex;
header.DataSize = oldHeader.DataSize;
}
if (header.LightCount != 0 &&
header.LightCount != 32)
{
throw new FormatException();
}
if (header.ShadowCount != 0 &&
header.ShadowCount != 8)
{
throw new FormatException();
}
this.AnimationTime = header.AnimationTime;
this.Width = header.Width;
this.Height = header.Height;
this.RowCount = header.RowCount;
this.ColumnCount = header.ColumnCount;
this.ShadowCount = header.ShadowCount;
this.LightCount = header.LightCount;
this.MaxSolidIndex = header.MaxSolidIndex;
this.CompressionFlags = header.CompressionFlags;
for (int i = 0; i < this.Palette.Length; i++)
{
this.Palette[i] = input.ReadValueU32();
}
this.UserData = new byte[header.UserDataSize];
if (input.Read(this.UserData, 0, this.UserData.Length) != this.UserData.Length)
{
throw new FormatException();
}
var infos = new Sprite.FrameInfo[header.FrameCount];
for (int i = 0; i < infos.Length; i++)
{
infos[i] = input.ReadStructure<Sprite.FrameInfo>();
}
var compressionFlags = (uint)header.CompressionFlags;
if ((compressionFlags & ~0x1FFu) != 0)
{
throw new FormatException("unknown compression flags");
}
if (header.Unknown20 != 0 &&
header.Unknown20 != 3)
{
// WHAT DOES THIS VALUE MEAN AUGH
throw new NotSupportedException();
}
if ((header.CompressionFlags &
Sprite.CompressionFlags.NoCompression) != 0)
{
if ((header.CompressionFlags &
~(Sprite.CompressionFlags.NoPixels | Sprite.CompressionFlags.NoCompression)) != 0)
{
throw new FormatException("other compression flags set with NoCompression flag");
}
}
using (var data = input.ReadToMemoryStream(header.DataSize))
{
this.Frames = new Sprite.Frame[header.FrameCount];
for (int i = 0; i < header.FrameCount; i++)
{
var info = infos[i];
data.Seek(info.Offset, SeekOrigin.Begin);
var frame = this.Frames[i] = new Sprite.Frame();
frame.X = info.X;
frame.Y = info.Y;
frame.Width = Math.Abs(info.Width);
frame.Height = Math.Abs(info.Height);
frame.Pixels = new byte[frame.Width * frame.Height];
if ((header.CompressionFlags &
Sprite.CompressionFlags.NoCompression) != 0)
{
// uncompressed data
data.Read(frame.Pixels, 0, frame.Pixels.Length);
}
else
{
// compressed data
var lengths = new int[frame.Height];
var max = 0;
for (int y = 0; y < frame.Height; y++)
{
int length = data.ReadValueU8();
if (length == 0xFF)
{
length = data.ReadValueU16();
}
lengths[y] = length;
max = Math.Max(max, length);
}
var scanline = new byte[max];
for (int y = 0, offset = 0; y < frame.Height; y++, offset = y * frame.Width)
{
var length = lengths[y];
if (data.Read(scanline, 0, length) != length)
{
throw new FormatException();
}
for (int x = 0; x < length;)
{
offset += (scanline[x] >> 4) & 0xF; // transparent
var literalCount = scanline[x] & 0xF;
if (literalCount > 0)
{
Array.Copy(scanline, x + 1, frame.Pixels, offset, literalCount);
}
offset += literalCount;
x += 1 + literalCount;
}
}
}
// flip horizontal
if (info.Width < 0)
{
for (int y = 0, offset = 0; y < frame.Height; y++, offset += frame.Width)
{
Array.Reverse(frame.Pixels, offset, frame.Width);
}
}
// flip vertical
if (info.Height < 0)
{
var scanline = new byte[frame.Height];
for (int x = 0; x < frame.Width; x++)
{
for (int y = 0, offset = x; y < frame.Height; y++, offset += frame.Width)
{
scanline[y] = frame.Pixels[offset];
}
for (int y = 0, offset = x; y < frame.Height; y++, offset += frame.Width)
{
frame.Pixels[offset] = scanline[frame.Height - 1 - y];
}
}
}
}
}
}
