mirror of https://github.com/PCSX2/pcsx2.git
71 lines
1.9 KiB
C++
71 lines
1.9 KiB
C++
/*
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* Copyright (C) 2007-2009 Gabest
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* http://www.gabest.org
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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, or (at your option)
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* 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 GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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*/
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#include "StdAfx.h"
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#include "GSDirtyRect.h"
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GSDirtyRect::GSDirtyRect()
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: m_psm(PSM_PSMCT32)
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, m_rect(0, 0, 0, 0)
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{
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}
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GSDirtyRect::GSDirtyRect(DWORD psm, CRect rect)
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{
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m_psm = psm;
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m_rect = rect;
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}
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CRect GSDirtyRect::GetDirtyRect(const GIFRegTEX0& TEX0)
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{
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CRect r = m_rect;
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CSize src = GSLocalMemory::m_psm[m_psm].bs;
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r.left = (r.left) & ~(src.cx-1);
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r.right = (r.right + (src.cx-1) /* + 1 */) & ~(src.cx-1);
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r.top = (r.top) & ~(src.cy-1);
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r.bottom = (r.bottom + (src.cy-1) /* + 1 */) & ~(src.cy-1);
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if(m_psm != TEX0.PSM)
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{
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CSize dst = GSLocalMemory::m_psm[TEX0.PSM].bs;
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r.left = MulDiv(m_rect.left, dst.cx, src.cx);
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r.right = MulDiv(m_rect.right, dst.cx, src.cx);
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r.top = MulDiv(m_rect.top, dst.cy, src.cy);
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r.bottom = MulDiv(m_rect.bottom, dst.cy, src.cy);
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}
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return r;
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}
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//
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CRect GSDirtyRectList::GetDirtyRect(const GIFRegTEX0& TEX0, CSize size)
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{
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if(IsEmpty()) return CRect(0, 0, 0, 0);
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CRect r(INT_MAX, INT_MAX, 0, 0);
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POSITION pos = GetHeadPosition();
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while(pos) r |= GetNext(pos).GetDirtyRect(TEX0);
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return r & CRect(0, 0, size.cx, size.cy);
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}
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