public FLCFile(Stream setStream)
{
stream = setStream;
header = null;
ShouldLoop = true;
IsPlaying = false;
IsPaused = false;
PauseAfterFirstFrame = false;
currentFrame = null;
currentPalette = null;
}
public static FLCChunk CreateFromStream(BinaryReader reader, FLCFile file)
{
uint size = reader.ReadUInt32();
ChunkType type = (ChunkType)reader.ReadUInt16();
FLCChunk result = null;
switch (type)
{
case ChunkType.FRAME_TYPE:
result = new FLCChunkFrameType(file);
break;
case ChunkType.COLOR_256:
result = new FLCChunkColor256(file);
break;
case ChunkType.BYTE_RUN:
result = new FLCChunkByteRun(file);
break;
case ChunkType.FLI_COPY:
result = new FLCChunkFLICopy(file);
break;
case ChunkType.DELTA_FLC:
result = new FLCChunkDeltaFLC(file);
break;
case ChunkType.DELTA_FLI:
result = new FLCChunkDeltaFLI(file);
break;
default:
result = new FLCChunkUnknown(file);
reader.BaseStream.Seek(size - 6, SeekOrigin.Current);
break;
}
if (result != null)
{
result.Size = size;
result.Type = type;
result.ReadFromStream(reader);
}
return result;
}
private FLCChunk ReadNextChunk()
{
FLCChunk frm = FLCChunk.CreateFromStream (reader, this);
FLCChunkColor256 newPalette = frm.GetChunkByType (ChunkType.COLOR_256) as FLCChunkColor256;
if (newPalette != null)
currentPalette = newPalette;
currentFrame.UpdateFromFLCChunk (frm, currentPalette);
if (OnFrameUpdated != null)
OnFrameUpdated (this);
return frm;
}
public void UpdateFromFLCChunk(FLCChunk chunk, FLCChunkColor256 paletteChunk)
{
if (chunk.Type != ChunkType.FRAME_TYPE)
return;
for (int chnkIdx = 0; chnkIdx < chunk.SubChunks.Count; chnkIdx++)
{
switch (chunk.SubChunks[chnkIdx].Type)
{
case ChunkType.BYTE_RUN:
{
FLCChunkByteRun brun = (FLCChunkByteRun)chunk.SubChunks[chnkIdx];
for (int i = 0; i < brun.PixelData.Length; i++)
{
framebuffer[i] = paletteChunk.Colors[brun.PixelData[i]];
}
}
break;
case ChunkType.FLI_COPY:
{
FLCChunkFLICopy flicpy = (FLCChunkFLICopy)chunk.SubChunks[chnkIdx];
for (int i = 0; i < flicpy.PixelData.Length; i++)
{
framebuffer[i] = paletteChunk.Colors[flicpy.PixelData[i]];
}
}
break;
case ChunkType.DELTA_FLI:
{
FLCChunkDeltaFLI delta = (FLCChunkDeltaFLI)chunk.SubChunks[chnkIdx];
using (BinaryReader reader = new BinaryReader(new MemoryStream(delta.Payload)))
{
ushort lineSkipCount = reader.ReadUInt16();
ushort lineCount = reader.ReadUInt16();
int curLine = lineSkipCount;
for (int lineIdx = 0; lineIdx < lineCount; lineIdx++)
{
byte packetCount = reader.ReadByte();
int curColumn = 0;
for (int pcktIdx = 0; pcktIdx < packetCount; pcktIdx++)
{
byte colSkipCount = reader.ReadByte();
sbyte rleByteCount = reader.ReadSByte();
curColumn += colSkipCount;
if (rleByteCount > 0)
{
for (int i = 0; i < rleByteCount; i++)
{
byte val = reader.ReadByte();
framebuffer[(curColumn + curLine * file.Width)] = paletteChunk.Colors[val];
curColumn++;
}
}
else if (rleByteCount < 0)
{
byte cpyCount = (byte)-rleByteCount;
byte val = reader.ReadByte();
for (int i = 0; i < cpyCount; i++)
{
framebuffer[(curColumn + curLine * file.Width)] = paletteChunk.Colors[val];
curColumn++;
}
}
else
{
}
}
curLine++;
}
}
}
break;
case ChunkType.DELTA_FLC:
{
FLCChunkDeltaFLC delta = (FLCChunkDeltaFLC)chunk.SubChunks[chnkIdx];
using (BinaryReader reader = new BinaryReader(new MemoryStream(delta.Payload)))
{
ushort lineCount = reader.ReadUInt16();
int curLine = 0;
for (int lineIdx = 0; lineIdx < lineCount; lineIdx++)
{
ushort? lineSkipCount = null;
byte? lastPixel = null;
ushort? packetCount = null;
while (packetCount == null)
{
short opcode = reader.ReadInt16();
if ((opcode & (1 << 15)) > 0)
{
if ((opcode & (1 << 14)) > 0)
{
lineSkipCount = (ushort)-opcode;
}
else
{
lastPixel = (byte)(opcode & 0x00FF);
}
}
else
{
if ((opcode & (1 << 14)) > 0)
{
//
}
else
{
packetCount = (ushort)opcode;
}
}
}
if (packetCount > 100)
return;
if (lineSkipCount != null)
curLine += lineSkipCount.Value;
int curColumn = 0;
for (int pcktIdx = 0; pcktIdx < packetCount; pcktIdx++)
{
byte colSkipCount = reader.ReadByte();
sbyte rleByteCount = reader.ReadSByte();
curColumn += colSkipCount;
if (rleByteCount > 0)
{
for (int i = 0; i < rleByteCount; i++)
{
ushort val = reader.ReadUInt16();
byte val1 = (byte)(val >> 8);
byte val2 = (byte)val;
framebuffer[(curColumn + curLine * file.Width) + 0] = paletteChunk.Colors[val2];
framebuffer[(curColumn + curLine * file.Width) + 1] = paletteChunk.Colors[val1];
curColumn += 2;
}
}
else if (rleByteCount < 0)
{
byte cpyCount = (byte)-rleByteCount;
ushort val = reader.ReadUInt16();
byte val1 = (byte)(val >> 8);
byte val2 = (byte)val;
for (int i = 0; i < cpyCount; i++)
{
framebuffer[(curColumn + curLine * file.Width) + 0] = paletteChunk.Colors[val2];
framebuffer[(curColumn + curLine * file.Width) + 1] = paletteChunk.Colors[val1];
curColumn += 2;
}
}
else
{
}
}
curLine++;
}
}
}
break;
}
}
}
