pcsx2/plugins/GSdx/GSVector.cpp

108 lines
2.3 KiB
C++

/*
* 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_x3f800000(_mm_castsi128_ps(_mm_set1_epi32(0x3f800000)));
const GSVector4 GSVector4::m_x4b000000(_mm_castsi128_ps(_mm_set1_epi32(0x4b000000)));
GSVector4i::GSVector4i(const GSVector4& v)
{
m = _mm_cvttps_epi32(v);
}
GSVector4::GSVector4(const GSVector4i& v)
{
m = _mm_cvtepi32_ps(v);
}
GSVector4i GSVector4i::cast(const GSVector4& v)
{
return GSVector4i(_mm_castps_si128(v.m));
}
GSVector4 GSVector4::cast(const GSVector4i& v)
{
return GSVector4(_mm_castsi128_ps(v.m));
}
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;
}
GSVector4i GSVector4i::fit(int preset) const
{
GSVector4i r;
static const int ar[][2] = {{0, 0}, {4, 3}, {16, 9}};
if(preset > 0 && preset < countof(ar))
{
r = fit(ar[preset][0], ar[preset][1]);
}
else
{
r = *this;
}
#ifdef USE_UPSCALE_HACKS //don't show outermost pixels, they're often buggy
r.x-=1;
r.y-=1;
r.z+=1;
r.w+=1;
#endif
return r;
}