Method FlushWrite

pcsx2/GS/GSState.cpp:2372–2422

}

void GSState::FlushWrite()
{
	if (!m_tr.write)
		return;

	const int len = m_tr.end - m_tr.start;

	if (len <= 0)
		return;

	GSVector4i r;

	r = m_tr.rect;

	// If the end isn't where it said it would be, we need to calculate the end point.
	// Star Wars - The Clone Wars just sets the rect to 16x4095 then YOLO's about half a page, then kills the transfer.
	// If we just nuke the whole lot, even though nothing has been transferred, we risk killing data we don't mean to.
	if (m_tr.end < m_tr.total && GSIsHardwareRenderer())
	{
		const GSLocalMemory::psm_t& psm_s = GSLocalMemory::m_psm[m_tr.m_blit.DPSM];
		// Convert to nibbles then back to bytes after, in case trbpp is 4.
		const u32 in_data_pixel_count = (((len * 2) + ((psm_s.trbpp / 4) - 1)) / (psm_s.trbpp / 4));
		const u32 rect_pixel_count = r.width() * r.height();

		if (rect_pixel_count > in_data_pixel_count)
		{
			const int calculated_height = ((in_data_pixel_count + (r.width() - 1)) / r.width());
			
			// Just setting the height should be okay...
			r.w = std::max(r.y + calculated_height, psm_s.bs.y);

			if (m_draw_transfers.size() > 0 && m_tr.m_blit.DBP == m_draw_transfers.back().blit.DBP)
			{
				m_draw_transfers.back().rect = m_draw_transfers.back().rect.runion(r);
			}
		}
	}

	InvalidateVideoMem(m_env.BITBLTBUF, r);

	const GSLocalMemory::writeImage wi = GSLocalMemory::m_psm[m_env.BITBLTBUF.DPSM].wi;

	wi(m_mem, m_tr.x, m_tr.y, &m_tr.buff[m_tr.start], len, m_tr.m_blit, m_tr.m_pos, m_tr.m_reg);

	m_tr.start += len;

	g_perfmon.Put(GSPerfMon::Swizzle, len);
	s_transfer_n++;
	if (m_tr.start >= m_tr.total)
		m_env.TRXDIR.XDIR = 3;
}

// This function decides if the context has changed in a way which warrants flushing the draw.
inline bool GSState::TestDrawChanged()