Method Update

pcsx2/GS/GSState.cpp:6894–6917

}

bool GSState::GSTransferBuffer::Update(int tw, int th, int bpp, int& len)
{
	int tex_size = (((tw * th * bpp) + 7) >> 3); // Round to nearest byte
	int packet_size = (tex_size + 15) & ~0xF; // Round up to the nearest quadword

	if (total == 0)
		total = std::min<int>(tex_size, 1024 * 1024 * 4);

	const int remaining = total - end;

	if (len > remaining)
	{
		if (len > packet_size)
		{
#if defined(_DEBUG)
			Console.Warning("GS transfer buffer overflow len %d remaining %d, tex_size %d tw %d th %d bpp %d", len, remaining, tex_size, tw, th, bpp);
#endif
		}

		len = remaining;
	}

	return len > 0;
}

// The horizontal offset values (under z) for PAL and NTSC have been tweaked
// they should be apparently 632 and 652 respectively, but that causes a thick black line on the left