public AseHeader(AseReader reader)
{
FileSize = reader.ReadDWORD();
MagicNumber = reader.ReadWORD();
NumFrames = reader.ReadWORD();
Width = reader.ReadWORD();
Height = reader.ReadWORD();
ColorDepth = reader.ReadColorDepth();
Flags = (HeaderFlags)reader.ReadDWORD();
Speed = reader.ReadWORD();
// Next two dwords are ignored
reader.ReadDWORD();
reader.ReadDWORD();
TransparentIndex = reader.ReadBYTE();
// Next 3 bytes are ignored
reader.ReadBYTEs(3);
NumColors = reader.ReadWORD();
PixelWidth = reader.ReadBYTE();
PixelHeight = reader.ReadBYTE();
// Last 92 bytes are reserved for future use
reader.ReadBYTEs(92);
Debug.Assert(MagicNumber == 0xA5E0);
}
public AseFrame(AseFile file, AseReader reader)
{
AseFile = file;
NumBytesInFrame = reader.ReadDWORD();
MagicNumber = reader.ReadWORD();
NumChunks = reader.ReadWORD();
FrameDurationMs = reader.ReadWORD();
// Ingore next two bytes
reader.ReadBYTEs(2);
// Later versions of Aseprite may overwrite our number of chunks
var nchunks = reader.ReadDWORD();
if (NumChunks == 0xFFFF && NumChunks < nchunks)
{
NumChunks = nchunks;
}
// Read in old and new chunks
Chunks = Enumerable.Repeat <AseChunk>(null, (int)NumChunks).ToList();
for (int i = 0; i < NumChunks; i++)
{
Chunks[i] = ReadChunk(reader);
}
Debug.Assert(MagicNumber == 0xF1FA);
}
public AsePaletteChunk(AseFrame frame, AseReader reader)
: base(frame)
{
PaletteSize = (int)reader.ReadDWORD();
FirstIndex = (int)reader.ReadDWORD();
LastIndex = (int)reader.ReadDWORD();
// Next 8 bytes are ignored
reader.ReadBYTEs(8);
Entries = Enumerable.Repeat <AsePaletteEntry>(null, LastIndex + 1).ToList();
for (int i = FirstIndex; i <= LastIndex; i++)
{
Entries[i] = new AsePaletteEntry(reader);
}
}
private AseChunk ReadChunk(AseReader reader)
{
uint size = reader.ReadDWORD();
ChunkType type = (ChunkType)reader.ReadWORD();
return(ChunkFactory.ReadChunk(this, type, (int)(size - 6), reader));
}
public AseSliceChunk(AseFrame frame, AseReader reader)
: base(frame)
{
NumSliceKeys = reader.ReadDWORD();
Flags = (SliceFlags)reader.ReadDWORD();
// Ignore next dword
reader.ReadDWORD();
Name = reader.ReadSTRING();
Entries = Enumerable.Repeat <AseSliceEntry>(null, (int)NumSliceKeys).ToList();
for (int i = 0; i < (int)NumSliceKeys; i++)
{
Entries[i] = new AseSliceEntry(reader, Flags);
}
}
public AseColorProfileChunk(AseFrame frame, AseReader reader)
: base(frame)
{
ColorProfileType = (ColorProfileType)reader.ReadWORD();
ColorProfileFlags = (ColorProfileFlags)reader.ReadWORD();
GammaFixed = reader.ReadDWORD();
// Next 8 bytes are reserved
reader.ReadBYTEs(8);
// fixit - what to do with color profile data?
if (ColorProfileType == ColorProfileType.EmbeddedICC)
{
var length = (int)reader.ReadDWORD();
reader.ReadBYTEs(length);
}
}
public AseColorProfileChunk(AseFrame frame, AseReader reader)
: base(frame)
{
ColorProfileType = (ColorProfileType)reader.ReadWORD();
ColorProfileFlags = (ColorProfileFlags)reader.ReadWORD();
GammaFixed = reader.ReadDWORD();
// Next 8 bytes are reserved
reader.ReadBYTEs(8);
// Do we need to do anything with color profile data?
// For now, just keep on truckin'
if (ColorProfileType == ColorProfileType.EmbeddedICC)
{
var length = (int)reader.ReadDWORD();
reader.ReadBYTEs(length);
}
}
public AseSliceEntry(AseReader reader, SliceFlags flags)
{
FrameNumber = reader.ReadDWORD();
OriginX = reader.ReadLONG();
OriginY = reader.ReadLONG();
Width = reader.ReadDWORD();
Height = reader.ReadDWORD();
if ((flags & SliceFlags.Is9PatchSlice) != 0)
{
CenterX = reader.ReadLONG();
CenterY = reader.ReadLONG();
CenterWidth = reader.ReadDWORD();
CenterHeight = reader.ReadDWORD();
}
if ((flags & SliceFlags.HasPivotInformation) != 0)
{
PivotX = reader.ReadLONG();
PivotY = reader.ReadLONG();
}
}
public AseUserDataChunk(AseFrame frame, AseReader reader)
: base(frame)
{
Flags = (UserDataFlags)reader.ReadDWORD();
if ((Flags & UserDataFlags.HasText) != 0)
{
Text = reader.ReadSTRING();
}
if ((Flags & UserDataFlags.HasColor) != 0)
{
ColorRGBA = reader.ReadBYTEs(4);
}
// Place the user data in the last chunk
if (reader.LastChunk != null)
{
reader.LastChunk.UserText = Text;
reader.LastChunk.UserColor = ColorRGBA;
}
}