Ykkrosh
d936bde74a
Allow components to individually subscribe/unsubscribe to messages, instead of statically subscribing the entire component type. Use this for most Interpolate/RenderSubmit messages, to avoid the performance cost of passing those messages to a large number of components that will just ignore them anyway. On Azure Coast this reduces total time per frame by about 30% on a CPU-bound system. This was SVN commit r15400.
89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
/* Copyright (C) 2014 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "DynamicSubscription.h"
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void CDynamicSubscription::Add(IComponent* cmp)
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{
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m_Removed.erase(cmp);
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m_Added.insert(cmp);
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}
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void CDynamicSubscription::Remove(IComponent* cmp)
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{
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m_Added.erase(cmp);
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m_Removed.insert(cmp);
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}
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void CDynamicSubscription::Flatten()
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{
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if (m_Added.empty() && m_Removed.empty())
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return;
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std::vector<IComponent*> tmp;
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tmp.reserve(m_Components.size() + m_Added.size());
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// tmp = m_Components - m_Removed
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std::set_difference(
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m_Components.begin(), m_Components.end(),
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m_Removed.begin(), m_Removed.end(),
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std::back_inserter(tmp),
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CompareIComponent());
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m_Components.clear();
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// m_Components = tmp + m_Added
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std::set_union(
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tmp.begin(), tmp.end(),
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m_Added.begin(), m_Added.end(),
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std::back_inserter(m_Components),
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CompareIComponent());
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m_Added.clear();
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m_Removed.clear();
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}
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const std::vector<IComponent*>& CDynamicSubscription::GetComponents()
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{
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// Must be flattened before calling this function
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ENSURE(m_Added.empty() && m_Removed.empty());
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return m_Components;
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}
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void CDynamicSubscription::DebugDump()
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{
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std::set<IComponent*, CompareIComponent>::iterator it;
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debug_printf(L"components:");
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for (size_t i = 0; i < m_Components.size(); i++)
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debug_printf(L" %p", m_Components[i]);
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debug_printf(L"\n");
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debug_printf(L"added:");
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for (it = m_Added.begin(); it != m_Added.end(); ++it)
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debug_printf(L" %p", *it);
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debug_printf(L"\n");
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debug_printf(L"removed:");
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for (it = m_Removed.begin(); it != m_Removed.end(); ++it)
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debug_printf(L" %p", *it);
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debug_printf(L"\n");
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}
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