static uint Kangaroo(SR1_Reader reader, ref G2AnimSegKeyflagInfo_Type kfInfo)
{
long oldPos = reader.BaseStream.Position;
uint flags = 0;
if (kfInfo.stream != 0)
{
flags = kfInfo.flags & 7;
kfInfo.flags >>= 3;
kfInfo.bitCount -= 3;
if (kfInfo.bitCount < 1)
{
kfInfo.stream += 4;
reader.BaseStream.Position = kfInfo.stream;
kfInfo.flags = reader.ReadUInt32();
if (kfInfo.bitCount < 0)
{
flags |= kfInfo.flags << (kfInfo.bitCount + 3 & 0x1f) & 7;
kfInfo.flags >>= (-kfInfo.bitCount & 0x1f);
}
kfInfo.bitCount += 0x20;
}
}
reader.BaseStream.Position = oldPos;
return(flags);
}
static void Wombat(SR1_Reader reader, long segKeyKist, int flagBitOffset, ref G2AnimSegKeyflagInfo_Type kfInfo)
{
long oldPos = reader.BaseStream.Position;
kfInfo.stream = segKeyKist + ((flagBitOffset >> 5) << 2);
reader.BaseStream.Position = kfInfo.stream;
uint flags = reader.ReadUInt32();
kfInfo.bitCount = 0x20 - (flagBitOffset & 0x1f);
kfInfo.flags = flags >> (flagBitOffset & 0x1f);
reader.BaseStream.Position = oldPos;
}
static int FooBar(SR1_Reader reader, long segKeyList, int chanData, int keyCount, int firstSeg, int lastSeg, int totalSegments)
{
long oldPos = reader.BaseStream.Position;
reader.BaseStream.Position = segKeyList;
int oldChanData = chanData;
int flagBitOffset = (firstSeg * 3) + 8;
int segIndex = ((totalSegments * 3) + 7) & unchecked ((int)0xfffffff8);
G2AnimSegKeyflagInfo_Type[] kfInfos = new G2AnimSegKeyflagInfo_Type[3];
byte wombatFlags = reader.ReadByte();
reader.BaseStream.Position = segKeyList;
if ((wombatFlags & 0x01) != 0)
{
Wombat(reader, segKeyList, flagBitOffset, ref kfInfos[0]);
flagBitOffset += segIndex;
}
if ((wombatFlags & 0x02) != 0)
{
Wombat(reader, segKeyList, flagBitOffset, ref kfInfos[1]);
flagBitOffset += segIndex;
}
if ((wombatFlags & 0x04) != 0)
{
Wombat(reader, segKeyList, flagBitOffset, ref kfInfos[2]);
flagBitOffset += segIndex;
}
flagBitOffset = 0;
for (int i = firstSeg; i <= lastSeg; i++)
{
uint kangaroo0 = Kangaroo(reader, ref kfInfos[0]);
uint kangaroo1 = Kangaroo(reader, ref kfInfos[1]);
uint kangaroo2 = Kangaroo(reader, ref kfInfos[2]);
uint kangarooAll = kangaroo0 | (kangaroo1 << 4) | (kangaroo2 << 8);
while (kangarooAll != 0)
{
int currentChanData = chanData;
if ((kangaroo0 & 1) != 0)
{
reader.BaseStream.Position = chanData + 1;
byte channelType = reader.ReadByte();
reader.BaseStream.Position--;
channelType &= 0xE0;
if (channelType == 0xE0)
{
channelType = 0;
}
if (channelType == 0)
{
currentChanData = chanData + (keyCount * 2);
}
else
{
currentChanData = chanData + 4; // Short pointer, so add double. (Quadruple, based on no$psx???)
if (channelType != 0x20)
{
if (flagBitOffset == 0)
{
flagBitOffset = 8;
}
if (channelType == 0x40)
{
// _G2Anim_InitializeChannel_AdaptiveDelta
chanData += (((keyCount + 3) >> 2) + 2) * 2; // Short pointer, so add double.
}
else if (channelType == 0x60)
{
// _G2Anim_InitializeChannel_Linear
long oldPos0 = reader.BaseStream.Position;
reader.BaseStream.Position = chanData;
short sVar4 = reader.ReadInt16();
chanData += ((sVar4 & 0xfff) + 1) * 2; // Short pointer, so add double.
reader.BaseStream.Position = oldPos0;
}
flagBitOffset--;
currentChanData = chanData;
}
}
}
chanData = currentChanData;
kangarooAll >>= 1;
kangaroo0 = kangarooAll;
}
}
reader.BaseStream.Position = oldPos;
return(chanData - oldChanData);
}
