forked from mirror/libbpg
151 lines
3.6 KiB
C++
151 lines
3.6 KiB
C++
/*****************************************************************************
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* Copyright (C) 2013 x265 project
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*
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* Authors: Gopu Govindaswamy <gopu@multicorewareinc.com>
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*
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* This program 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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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
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*
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* This program is also available under a commercial proprietary license.
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* For more information, contact us at license @ x265.com.
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*****************************************************************************/
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#include "common.h"
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#include "piclist.h"
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#include "frame.h"
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using namespace X265_NS;
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void PicList::pushFront(Frame& curFrame)
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{
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X265_CHECK(!curFrame.m_next && !curFrame.m_prev, "piclist: picture already in list\n"); // ensure frame is not in a list
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curFrame.m_next = m_start;
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curFrame.m_prev = NULL;
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if (m_count)
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{
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m_start->m_prev = &curFrame;
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m_start = &curFrame;
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}
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else
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{
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m_start = m_end = &curFrame;
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}
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m_count++;
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}
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void PicList::pushBack(Frame& curFrame)
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{
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X265_CHECK(!curFrame.m_next && !curFrame.m_prev, "piclist: picture already in list\n"); // ensure frame is not in a list
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curFrame.m_next = NULL;
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curFrame.m_prev = m_end;
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if (m_count)
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{
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m_end->m_next = &curFrame;
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m_end = &curFrame;
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}
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else
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{
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m_start = m_end = &curFrame;
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}
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m_count++;
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}
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Frame *PicList::popFront()
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{
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if (m_start)
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{
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Frame *temp = m_start;
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m_count--;
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if (m_count)
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{
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m_start = m_start->m_next;
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m_start->m_prev = NULL;
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}
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else
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{
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m_start = m_end = NULL;
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}
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temp->m_next = temp->m_prev = NULL;
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return temp;
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}
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else
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return NULL;
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}
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Frame* PicList::getPOC(int poc)
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{
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Frame *curFrame = m_start;
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while (curFrame && curFrame->m_poc != poc)
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curFrame = curFrame->m_next;
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return curFrame;
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}
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Frame *PicList::popBack()
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{
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if (m_end)
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{
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Frame* temp = m_end;
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m_count--;
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if (m_count)
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{
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m_end = m_end->m_prev;
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m_end->m_next = NULL;
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}
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else
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{
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m_start = m_end = NULL;
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}
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temp->m_next = temp->m_prev = NULL;
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return temp;
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}
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else
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return NULL;
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}
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void PicList::remove(Frame& curFrame)
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{
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#if _DEBUG
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Frame *tmp = m_start;
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while (tmp && tmp != &curFrame)
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{
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tmp = tmp->m_next;
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}
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X265_CHECK(tmp == &curFrame, "piclist: pic being removed was not in list\n"); // verify pic is in this list
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#endif
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m_count--;
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if (m_count)
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{
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if (m_start == &curFrame)
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m_start = curFrame.m_next;
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if (m_end == &curFrame)
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m_end = curFrame.m_prev;
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if (curFrame.m_next)
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curFrame.m_next->m_prev = curFrame.m_prev;
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if (curFrame.m_prev)
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curFrame.m_prev->m_next = curFrame.m_next;
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}
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else
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{
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m_start = m_end = NULL;
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}
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curFrame.m_next = curFrame.m_prev = NULL;
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}
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