mirror of https://github.com/PCSX2/pcsx2.git
86 lines
2.0 KiB
C++
86 lines
2.0 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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: psm(PSM_PSMCT32)
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{
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left = top = right = bottom = 0;
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}
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GSDirtyRect::GSDirtyRect(const GSVector4i& r, uint32 psm)
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: psm(psm)
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{
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left = r.left;
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top = r.top;
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right = r.right;
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bottom = r.bottom;
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}
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GSVector4i GSDirtyRect::GetDirtyRect(const GIFRegTEX0& TEX0)
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{
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GSVector4i r;
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GSVector2i src = GSLocalMemory::m_psm[psm].bs;
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if(psm != TEX0.PSM)
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{
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GSVector2i dst = GSLocalMemory::m_psm[TEX0.PSM].bs;
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r.left = MulDiv(left, dst.x, src.x);
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r.right = MulDiv(right, dst.x, src.x);
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r.top = MulDiv(top, dst.y, src.y);
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r.bottom = MulDiv(bottom, dst.y, src.y);
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}
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else
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{
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r.left = left & ~(src.x - 1);
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r.right = (right + (src.x - 1) /* + 1 */) & ~(src.x - 1);
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r.top = top & ~(src.y - 1);
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r.bottom = (bottom + (src.y - 1) /* + 1 */) & ~(src.y - 1);
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}
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return r;
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}
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//
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GSVector4i GSDirtyRectList::GetDirtyRectAndClear(const GIFRegTEX0& TEX0, const GSVector2i& size)
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{
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if(!empty())
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{
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GSVector4i r(INT_MAX, INT_MAX, 0, 0);
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for(list<GSDirtyRect>::iterator i = begin(); i != end(); i++)
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{
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r = r.runion(i->GetDirtyRect(TEX0));
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}
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clear();
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return r.rintersect(GSVector4i(0, 0, size.x, size.y));
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}
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return GSVector4i::zero();
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}
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