public Background(GameboyAdvance gba, int bgNumber, BgControlRegister cntRegister)
{
this.gba = gba;
this.BgNumber = bgNumber;
CntRegister = cntRegister;
AffineMode = false;
TileMap = new TileMap(gba.Memory.VRam, cntRegister, bgNumber);
AffineMatrix = new BgAffineMatrix();
}
public Background(GameboyAdvance gba, int bgNumber, BgControlRegister cntRegister, MemoryRegister16 scrollXReg, MemoryRegister16 scrollYReg)
{
this.gba = gba;
this.BgNumber = bgNumber;
CntRegister = cntRegister;
AffineMode = false;
TileMap = new TileMap(gba.Memory.VRam, cntRegister, bgNumber);
BGXHOFS = scrollXReg;
BGXVOFS = scrollYReg;
// Only bg 2 & 3 can rotate and scale
if (bgNumber == 2)
{
AffineMatrix = new BgAffineMatrix(gba, 0x4000020);
AffineScrollXReg = new AffineScrollRegister(gba.Memory, 0x4000028, false, true);
AffineScrollYReg = new AffineScrollRegister(gba.Memory, 0x400002C, false, true);
}
else if (bgNumber == 3)
{
AffineMatrix = new BgAffineMatrix(gba, 0x4000030);
AffineScrollXReg = new AffineScrollRegister(gba.Memory, 0x4000038, false, true);
AffineScrollYReg = new AffineScrollRegister(gba.Memory, 0x400003C, false, true);
}
ScanlineData = new int[LcdController.Screen_X_Resolution];
#if THREADED_SCANLINE
Interlocked.Exchange(ref cacheScanline, 0);
exitThread = false;
scanlineThread = new Thread(new ThreadStart(ScanlineThread));
scanlineThread.Start();
#endif
}