/* * 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 "GSVertexTrace.h" #include "GSUtil.h" #include "GSState.h" const GSVector4 GSVertexTrace::s_minmax(FLT_MAX, -FLT_MAX); GSVertexTrace::GSVertexTrace(const GSState* state) : m_state(state) { #define InitUpdate3(P, IIP, TME, FST, COLOR) \ m_fmm[COLOR][FST][TME][IIP][P] = &GSVertexTrace::FindMinMax
;
#define InitUpdate2(P, IIP, TME) \
InitUpdate3(P, IIP, TME, 0, 0) \
InitUpdate3(P, IIP, TME, 0, 1) \
InitUpdate3(P, IIP, TME, 1, 0) \
InitUpdate3(P, IIP, TME, 1, 1) \
#define InitUpdate(P) \
InitUpdate2(P, 0, 0) \
InitUpdate2(P, 0, 1) \
InitUpdate2(P, 1, 0) \
InitUpdate2(P, 1, 1) \
InitUpdate(GS_POINT_CLASS);
InitUpdate(GS_LINE_CLASS);
InitUpdate(GS_TRIANGLE_CLASS);
InitUpdate(GS_SPRITE_CLASS);
}
void GSVertexTrace::Update(const void* vertex, const uint32* index, int count, GS_PRIM_CLASS primclass)
{
m_primclass = primclass;
uint32 iip = m_state->PRIM->IIP;
uint32 tme = m_state->PRIM->TME;
uint32 fst = m_state->PRIM->FST;
uint32 color = !(m_state->PRIM->TME && m_state->m_context->TEX0.TFX == TFX_DECAL && m_state->m_context->TEX0.TCC);
(this->*m_fmm[color][fst][tme][iip][primclass])(vertex, index, count);
m_eq.value = (m_min.c == m_max.c).mask() | ((m_min.p == m_max.p).mask() << 16) | ((m_min.t == m_max.t).mask() << 20);
m_alpha.valid = false;
if(m_state->PRIM->TME)
{
const GIFRegTEX1& TEX1 = m_state->m_context->TEX1;
m_filter.mmag = TEX1.IsMagLinear();
m_filter.mmin = TEX1.IsMinLinear();
if(TEX1.MXL == 0) // MXL == 0 => MMIN ignored, tested it on ps2
{
m_filter.linear = m_filter.mmag;
return;
}
float K = (float)TEX1.K / 16;
if(TEX1.LCM == 0 && m_state->PRIM->FST == 0) // FST == 1 => Q is not interpolated
{
// LOD = log2(1/|Q|) * (1 << L) + K
GSVector4::storel(&m_lod, m_max.t.uph(m_min.t).log2(3).neg() * (float)(1 << TEX1.L) + K);
if(m_lod.x > m_lod.y) {float tmp = m_lod.x; m_lod.x = m_lod.y; m_lod.y = tmp;}
}
else
{
m_lod.x = K;
m_lod.y = K;
}
if(m_lod.y <= 0)
{
m_filter.linear = m_filter.mmag;
}
else if(m_lod.x > 0)
{
m_filter.linear = m_filter.mmin;
}
else
{
m_filter.linear = m_filter.mmag | m_filter.mmin;
}
}
}
template