Method UpdateLodRequest

trinity/Resources/TriTextureRes.cpp:723–773

}

void TriTextureRes::UpdateLodRequest( Tr2TextureLodUpdateRequest& request, Tr2TextureLodManager& manager )
{
	ON_BLOCK_EXIT( [&] { m_requestedMip = INVALID_LOD; } );

	request.mipChange = 0;

	if( !IsGood() || !m_lodEnabled || m_originalResolution == 0 )
	{
		return;
	}

	if( m_requestedMip == INVALID_LOD && !m_ownTexture.IsValid() )
	{
		// We don't have any GPU texture created and nobody asked for a specific MIP, so let's create a largest one
		m_requestedMip = m_cpuMip;
	}

	if( m_requestedMip == INVALID_LOD )
	{
		if( manager.NeedToTrimCpuTexture() )
		{
			TrimLods( m_maxMip, manager );
		}
		return;
	}

	AtomicMinUpdate( m_requestedMip, m_maxMip );

	if( m_gpuMip == m_requestedMip )
	{
		if( manager.NeedToTrimCpuTexture() )
		{
			if( m_cpuMip + 1 < m_requestedMip )
			{
				TrimLods( m_requestedMip - 1, manager );
			}
			else
			{
				TrimLods( m_maxMip, manager );
			}
		}
		return;
	}

	if( m_requestedMip != m_gpuMip )
	{
		request.mipChange = int32_t( m_requestedMip ) - int32_t( m_gpuMip );
		++request.frameNumber;
		request.cachedInRam = m_cpuMip <= m_requestedMip;
	}
}

void TriTextureRes::ProcessLodRequest( const Tr2TextureLodUpdateRequest& request, Tr2TextureLodManager& manager )
{