Function WRITERING_DMA

pcsx2/Gif.cpp:303–339

}

static u32 WRITERING_DMA(u32* pMem, u32 qwc)
{
	const u32 originalQwc = qwc;

	if (gifRegs.stat.IMT)
	{
		// Splitting by 8qw can be really slow, so on bigger packets be less picky.
		// Games seem to be more concerned with other channels finishing before PATH 3 finishes
		// so we can get away with transferring "most" of it when it's a big packet.
		// Use Wallace and Gromit Project Zoo or The Suffering for testing
		if (qwc > 64)
			qwc = qwc * 0.5f;
		else
			qwc = std::min(qwc, 8u);
	}
	// If the packet is larger than 8qw, try to time the packet somewhat so any "finish" signals don't fire way too early and GIF syncs with other units.
	// (Mana Khemia exhibits flickering characters without).
	else if (qwc > 8)
		qwc -= 8;

	uint size;

	if (CheckPaths() == false || ((qwc < 8 || gif_fifo.fifoSize > 0) && CHECK_GIFFIFOHACK))
	{
		if (gif_fifo.fifoSize < 16)
		{
			size = gif_fifo.write_fifo((u32*)pMem, originalQwc); // Use original QWC here, the intermediate mode is for the GIF unit, not DMA
			incGifChAddr(size);
			return size;
		}
		return 4; // Arbitrary value, probably won't schedule a DMA anwyay since the FIFO is full and GIF is paused
	}

	size = gifUnit.TransferGSPacketData(GIF_TRANS_DMA, (u8*)pMem, qwc * 16) / 16;
	incGifChAddr(size);
	return size;
}

static __fi void GIFchain()
{