private void OpenScriptResourceLittleEndian(uint id)
{
bool needByteSwap = false;
if (_isBigEndian)
{
// Cluster files are in big endian fomat.
// If the resource are not in memory anymore, and therefore will be read
// from disk, they will need to be byte swaped.
MemHandle memHandle = ResHandle(id);
if (memHandle != null)
needByteSwap = (memHandle.cond == MemMan.MEM_FREED);
}
ResOpen(id);
if (needByteSwap)
{
MemHandle handle = ResHandle(id);
if (handle == null)
return;
// uint32 totSize = handle.size;
Header head = new Header(handle.data);
head.comp_length = ScummHelper.SwapBytes(head.comp_length);
head.decomp_length = ScummHelper.SwapBytes(head.decomp_length);
head.version = ScummHelper.SwapBytes(head.version);
UIntAccess data = new UIntAccess(handle.data, Header.Size);
uint size = handle.size - Header.Size;
if ((size & 3) != 0)
throw new InvalidOperationException($"Odd size during script endian conversion. Resource ID ={id}, size = {size}");
size >>= 2;
for (uint cnt = 0; cnt < size; cnt++)
{
data[0] = ScummHelper.SwapBytes(data[0]);
data.Offset += 4;
}
}
}
public void AddToGraphicList(byte listId, uint objId)
{
if (listId == 0)
{
Debug.Assert(_foreLength < MAX_FORE);
_foreList[_foreLength++] = objId;
}
if (listId == 1)
{
Debug.Assert(_sortLength < MAX_SORT);
var cpt = _objMan.FetchObject(objId);
_sortList[_sortLength].id = (int)objId;
_sortList[_sortLength].y = cpt.anim_y; // gives feet coords if boxed mega, otherwise top of sprite box
if ((cpt.status & STAT_SHRINK) == 0)
{ // not a boxed mega using shrinking
Header frameRaw = new Header(_resMan.OpenFetchRes((uint)cpt.resource));
FrameHeader frameHead = new FrameHeader(_resMan.FetchFrame(frameRaw.Data, (uint)cpt.frame));
_sortList[_sortLength].y += _resMan.ReadUInt16(frameHead.height) - 1; // now pointing to base of sprite
_resMan.ResClose((uint)cpt.resource);
}
_sortLength++;
}
if (listId == 2)
{
Debug.Assert(_backLength < MAX_BACK);
_backList[_backLength++] = objId;
}
}