/// <summary>
/// Gets list of compressions of the textures in the tpk block array.
/// </summary>
/// <param name="byteptr_t">Pointer to the tpk block array.</param>
/// <param name="offset">Partial 1 part5 offset in the tpk block array.</param>
protected override unsafe void GetCompressionList(byte *byteptr_t, int offset)
{
if (offset == -1)
{
return; // if Part5 does not exist
}
if (*(uint *)(byteptr_t + offset) != TPK.INFO_PART5_BLOCKID)
{
return; // check Part5 ID
}
int ReaderSize = 8 + *(int *)(byteptr_t + offset + 4);
int current = 0x10;
while (current < ReaderSize)
{
uint comp = *(uint *)(byteptr_t + offset + current + 12);
if (Comp.IsComp(comp))
{
var Slot = new CompSlot();
Slot.var1 = *(int *)(byteptr_t + offset + current);
Slot.var2 = *(int *)(byteptr_t + offset + current + 4);
Slot.var3 = *(int *)(byteptr_t + offset + current + 8);
Slot.comp = comp;
this.compressions.Add(Slot);
}
current += 0x20;
}
}
/// <summary>
/// Checks texture compressions and tpk compressions for matching.
/// </summary>
protected override void CheckComps()
{
this.compressions.Clear();
for (int a1 = 0; a1 < this.Textures.Count; ++a1)
{
var Slot = new CompSlot();
Slot.var1 = this.Textures[a1].CompVal1;
Slot.var2 = this.Textures[a1].CompVal2;
Slot.var3 = this.Textures[a1].CompVal3;
Slot.comp = Comp.GetInt(this.Textures[a1].Compression);
this.compressions.Add(Slot);
}
}