axmol/core/renderer/CCGroupCommand.cpp

/****************************************************************************
 Copyright (c) 2013-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

 https://axis-project.github.io/

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 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

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 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#include "renderer/CCGroupCommand.h"
#include "renderer/CCRenderer.h"
#include "base/CCDirector.h"

NS_AX_BEGIN

GroupCommandManager::GroupCommandManager() {}

GroupCommandManager::~GroupCommandManager() {}

bool GroupCommandManager::init()
{
    // 0 is the default render group
    _groupMapping[0] = true;
    return true;
}

int GroupCommandManager::getGroupID()
{
    // Reuse old id
    if (!_unusedIDs.empty())
    {
        int groupID = *_unusedIDs.rbegin();
        _unusedIDs.pop_back();
        _groupMapping[groupID] = true;
        return groupID;
    }

    // Create new ID
    //    int newID = _groupMapping.size();
    int newID            = Director::getInstance()->getRenderer()->createRenderQueue();
    _groupMapping[newID] = true;

    return newID;
}

void GroupCommandManager::releaseGroupID(int groupID)
{
    _groupMapping[groupID] = false;
    _unusedIDs.emplace_back(groupID);
}

GroupCommand::GroupCommand()
{
    _type          = RenderCommand::Type::GROUP_COMMAND;
    _renderQueueID = Director::getInstance()->getRenderer()->getGroupCommandManager()->getGroupID();
}

void GroupCommand::init(float globalOrder)
{
    _globalOrder = globalOrder;
    auto manager = Director::getInstance()->getRenderer()->getGroupCommandManager();
    manager->releaseGroupID(_renderQueueID);
    _renderQueueID = manager->getGroupID();
}

GroupCommand::~GroupCommand()
{
    Director::getInstance()->getRenderer()->getGroupCommandManager()->releaseGroupID(_renderQueueID);
}

NS_AX_END