pcsx2/plugins/GSdx_legacy/GSVertexTrace.h

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2016-04-07 19:27:55 +00:00
/*
* 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#pragma once
#include "GSDrawingContext.h"
#include "GSVertex.h"
#include "GSVertexSW.h"
#include "GSVertexHW.h"
#include "GSFunctionMap.h"
class GSState;
__aligned(class, 32) GSVertexTrace : public GSAlignedClass<32>
{
public:
struct Vertex {GSVector4i c; GSVector4 p, t;};
struct VertexAlpha {int min, max; bool valid;};
protected:
const GSState* m_state;
static const GSVector4 s_minmax;
typedef void (GSVertexTrace::*FindMinMaxPtr)(const void* vertex, const uint32* index, int count);
FindMinMaxPtr m_fmm[2][2][2][2][4];
template<GS_PRIM_CLASS primclass, uint32 iip, uint32 tme, uint32 fst, uint32 color>
void FindMinMax(const void* vertex, const uint32* index, int count);
public:
GS_PRIM_CLASS m_primclass;
Vertex m_min;
Vertex m_max;
VertexAlpha m_alpha; // source alpha range after tfx, GSRenderer::GetAlphaMinMax() updates it
union
{
uint32 value;
struct {uint32 r:4, g:4, b:4, a:4, x:1, y:1, z:1, f:1, s:1, t:1, q:1, _pad:1;};
struct {uint32 rgba:16, xyzf:4, stq:4;};
} m_eq;
union
{
struct {uint32 mmag:1, mmin:1, linear:1;};
} m_filter;
GSVector2 m_lod; // x = min, y = max
public:
GSVertexTrace(const GSState* state);
virtual ~GSVertexTrace() {}
void Update(const void* vertex, const uint32* index, int count, GS_PRIM_CLASS primclass);
bool IsLinear() const {return m_filter.linear;}
};