pcsx2/plugins/GSdx/GSVector.cpp

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/*
* Copyright (C) 2007-2009 Gabest
* http://www.gabest.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "stdafx.h"
#include "GSVector.h"
const GSVector4 GSVector4::m_ps0123(0.0f, 1.0f, 2.0f, 3.0f);
const GSVector4 GSVector4::m_ps4567(4.0f, 5.0f, 6.0f, 7.0f);
const GSVector4 GSVector4::m_half(0.5f);
const GSVector4 GSVector4::m_one(1.0f);
const GSVector4 GSVector4::m_two(2.0f);
const GSVector4 GSVector4::m_four(4.0f);
const GSVector4 GSVector4::m_x4b000000(_mm_castsi128_ps(_mm_set1_epi32(0x4b000000)));
const GSVector4 GSVector4::m_x4f800000(_mm_castsi128_ps(_mm_set1_epi32(0x4f800000)));
GSVector4i GSVector4i::fit(int arx, int ary) const
{
GSVector4i r = *this;
if(arx > 0 && ary > 0)
{
int w = width();
int h = height();
if(w * ary > h * arx)
{
w = h * arx / ary;
r.left = (r.left + r.right - w) >> 1;
if(r.left & 1) r.left++;
r.right = r.left + w;
}
else
{
h = w * ary / arx;
r.top = (r.top + r.bottom - h) >> 1;
if(r.top & 1) r.top++;
r.bottom = r.top + h;
}
r = r.rintersect(*this);
}
else
{
r = *this;
}
return r;
}
static const int s_ar[][2] = {{0, 0}, {4, 3}, {16, 9}};
GSVector4i GSVector4i::fit(int preset) const
{
GSVector4i r;
if(preset > 0 && preset < countof(s_ar))
{
r = fit(s_ar[preset][0], s_ar[preset][1]);
}
else
{
r = *this;
}
return r;
}