152 lines
5.5 KiB
C++
152 lines
5.5 KiB
C++
// Copyright (C) 2003-2008 Dolphin Project.
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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, version 2.0.
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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 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef _VERTEXLOADER_H
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#define _VERTEXLOADER_H
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#include "CPMemory.h"
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#include "DataReader.h"
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#include "NativeVertexFormat.h"
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// There are 8 of these. Most games only use the first, and just reconfigure it all the time
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// as needed, unfortunately.
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// TODO - clarify the role of this class. It seems to have taken on some irrelevant stuff.
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class VertexLoader
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{
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public:
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enum
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{
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NRM_ZERO = 0,
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NRM_ONE = 1,
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NRM_THREE = 3
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};
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private:
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// The 3 possible values (0, 1, 2) should be documented here.
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enum {
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AD_CLEAN = 0,
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AD_DIRTY = 1,
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AD_VAT_DIRTY = 2,
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} m_AttrDirty;
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// Flipper vertex format =============
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int m_VertexSize; // number of bytes of a raw GC vertex
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// Raw VAttr
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UVAT_group0 m_group0;
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UVAT_group1 m_group1;
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UVAT_group2 m_group2;
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TVtxAttr m_VtxAttr; // Decoded into easy format
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// Common for all loaders (? then why is it here?)
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TVtxDesc m_VtxDesc;
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// PC vertex format, + converter ======
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NativeVertexFormat m_NativeFmt;
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// Pipeline. To be JIT compiled in the future.
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TPipelineFunction m_PipelineStages[32];
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int m_numPipelineStages;
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void SetupColor(int num, int _iMode, int _iFormat, int _iElements);
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void SetupTexCoord(int num, int _iMode, int _iFormat, int _iElements, int _iFrac);
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void RunPipelineOnce() const;
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public:
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// constructor
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VertexLoader();
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~VertexLoader();
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// run the pipeline
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void PrepareForVertexFormat();
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void RunVertices(int primitive, int count);
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void WriteCall(TPipelineFunction);
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int GetGCVertexSize() const { _assert_( !m_AttrDirty ); return m_VertexSize; }
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int GetVBVertexStride() const { _assert_( !m_AttrDirty); return m_NativeFmt.m_VBVertexStride; }
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int ComputeVertexSize();
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void SetVAT_group0(u32 _group0)
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{
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// ignore frac bits - we don't need to recompute if all that's changed was the frac bits.
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if ((m_group0.Hex & ~VAT_0_FRACBITS) != (_group0 & ~VAT_0_FRACBITS)) {
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m_AttrDirty = AD_VAT_DIRTY;
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}
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m_group0.Hex = _group0;
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m_VtxAttr.PosElements = m_group0.PosElements;
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m_VtxAttr.PosFormat = m_group0.PosFormat;
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m_VtxAttr.PosFrac = m_group0.PosFrac;
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m_VtxAttr.NormalElements = m_group0.NormalElements;
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m_VtxAttr.NormalFormat = m_group0.NormalFormat;
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m_VtxAttr.color[0].Elements = m_group0.Color0Elements;
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m_VtxAttr.color[0].Comp = m_group0.Color0Comp;
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m_VtxAttr.color[1].Elements = m_group0.Color1Elements;
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m_VtxAttr.color[1].Comp = m_group0.Color1Comp;
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m_VtxAttr.texCoord[0].Elements = m_group0.Tex0CoordElements;
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m_VtxAttr.texCoord[0].Format = m_group0.Tex0CoordFormat;
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m_VtxAttr.texCoord[0].Frac = m_group0.Tex0Frac;
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m_VtxAttr.ByteDequant = m_group0.ByteDequant;
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m_VtxAttr.NormalIndex3 = m_group0.NormalIndex3;
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};
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void SetVAT_group1(u32 _group1)
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{
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if ((m_group1.Hex & ~VAT_1_FRACBITS) != (_group1 & ~VAT_1_FRACBITS)) {
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m_AttrDirty = AD_VAT_DIRTY;
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}
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m_group1.Hex = _group1;
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m_VtxAttr.texCoord[1].Elements = m_group1.Tex1CoordElements;
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m_VtxAttr.texCoord[1].Format = m_group1.Tex1CoordFormat;
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m_VtxAttr.texCoord[1].Frac = m_group1.Tex1Frac;
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m_VtxAttr.texCoord[2].Elements = m_group1.Tex2CoordElements;
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m_VtxAttr.texCoord[2].Format = m_group1.Tex2CoordFormat;
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m_VtxAttr.texCoord[2].Frac = m_group1.Tex2Frac;
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m_VtxAttr.texCoord[3].Elements = m_group1.Tex3CoordElements;
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m_VtxAttr.texCoord[3].Format = m_group1.Tex3CoordFormat;
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m_VtxAttr.texCoord[3].Frac = m_group1.Tex3Frac;
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m_VtxAttr.texCoord[4].Elements = m_group1.Tex4CoordElements;
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m_VtxAttr.texCoord[4].Format = m_group1.Tex4CoordFormat;
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};
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void SetVAT_group2(u32 _group2)
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{
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if ((m_group2.Hex & ~VAT_2_FRACBITS) != (_group2 & ~VAT_2_FRACBITS)) {
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m_AttrDirty = AD_VAT_DIRTY;
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}
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m_group2.Hex = _group2;
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m_VtxAttr.texCoord[4].Frac = m_group2.Tex4Frac;
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m_VtxAttr.texCoord[5].Elements = m_group2.Tex5CoordElements;
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m_VtxAttr.texCoord[5].Format = m_group2.Tex5CoordFormat;
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m_VtxAttr.texCoord[5].Frac = m_group2.Tex5Frac;
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m_VtxAttr.texCoord[6].Elements = m_group2.Tex6CoordElements;
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m_VtxAttr.texCoord[6].Format = m_group2.Tex6CoordFormat;
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m_VtxAttr.texCoord[6].Frac = m_group2.Tex6Frac;
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m_VtxAttr.texCoord[7].Elements = m_group2.Tex7CoordElements;
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m_VtxAttr.texCoord[7].Format = m_group2.Tex7CoordFormat;
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m_VtxAttr.texCoord[7].Frac = m_group2.Tex7Frac;
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};
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};
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extern VertexLoader g_VertexLoaders[8];
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#endif
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