public void GetBufferFrames()
{
FileBuffer.Seek(0, SeekOrigin.Begin);
BinaryFormatter mFormatter = new BinaryFormatter(FileBuffer);
FlcHeader.ReadData(mFormatter);
Civ3Header.ReadData(mFormatter);
SFliFrameHeader frameHeader = new SFliFrameHeader();
SFliChunkHeader chunkHeader = new SFliChunkHeader();
mBufferFrames = new byte[FlcHeader.frames + 8][];
mColourMap = new RGB[FlcHeader.frames + 8][];
for (short frame = 0; frame < FlcHeader.frames + 8; frame++) {
mBufferFrames[frame] = new byte[FlcHeader.width * FlcHeader.height];
mColourMap[frame] = new RGB[256];
if (frame > 0) {
Array.Copy(mBufferFrames[frame - 1], mBufferFrames[frame], sizeof(byte) * (FlcHeader.width * FlcHeader.height));
Array.Copy(mColourMap[frame - 1], mColourMap[frame], 256);
}
frameHeader.ReadData(mFormatter);
if (frameHeader.magic != 0xf1fa) {
//fseek(fp, frameHeader.Size - sizeof(frameHeader), SEEK_CUR);
ulong size = (ulong)System.Runtime.InteropServices.Marshal.SizeOf(typeof(SFliFrameHeader));
mFormatter.ReadBytes((int)(frameHeader.size - size));
FlcHeader.frames--;
frame--;
continue;
}
for (int chunk = 0; chunk < frameHeader.chunks; chunk++) {
chunkHeader.ReadData(mFormatter);
switch (chunkHeader.type) {
case 4:
FlcColour256(mFormatter, frame);
break;
case 7:
long read = FlcDeltaFlc(mFormatter, frame);
mFormatter.ReadBytes((int)((long)chunkHeader.size - read));
break;
case 15:
FlcBitwiseRun(mFormatter, frame);
break;
default:
throw new NotImplementedException();
}
}
}
}
long FlcDeltaFlc(BinaryFormatter formatter, int frame)
{
long pos, read;
short lines, l, b, colour;
byte skip;
sbyte change;
lines = formatter.ReadShort16();
read = 6 + sizeof(short);
l = 0;
while (lines > 0) {
pos = l * FlcHeader.width;
b = formatter.ReadShort16();
read += 2;
if ((b & 0xC000) == 0x0000) {
b &= 0x3FFF;
for (int j = 0; j < b; j++) {
skip = formatter.ReadByte();
pos += skip;
read += 1;
change = formatter.ReadSByte();
read += 1;
if (change > 0) {
for (int i = 0; i < change; i++) {
colour = formatter.ReadShort16();
read += 2;
mBufferFrames[frame][pos++] = (byte)(colour & 0x00FF);
mBufferFrames[frame][pos++] = (byte)((colour >> 8) & 0x00FF);
}
}
else {
change = (sbyte)-change;
colour = formatter.ReadShort16();
read += 2;
for (int i = 0; i < change; i++) {
mBufferFrames[frame][pos++] = (byte)(colour & 0x00FF);
mBufferFrames[frame][pos++] = (byte)((colour >> 8) & 0x00FF);
}
}
}
lines--;
l++;
}
else {
if ((b & 0xC000) == 0xC000)
l -= b;
else
mBufferFrames[frame][pos++] = (byte)(b & 0x00FF);
}
}
if ((read % 4) == 1) {
formatter.ReadBytes(2);
read++;
}
return read;
}