95 lines
2.5 KiB
C
95 lines
2.5 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 _NATIVEVERTEXFORMAT_H
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#define _NATIVEVERTEXFORMAT_H
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#include "../../Plugin_VideoDX9/Src/Vec3.h"
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#ifdef WIN32
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#define LOADERDECL __cdecl
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#else
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#define LOADERDECL
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#endif
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typedef void (LOADERDECL *TPipelineFunction)();
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struct Vec4
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{
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float x;
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float y;
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float z;
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float w;
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};
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struct InputVertexData
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{
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u8 posMtx;
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u8 texMtx[8];
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Vec3 position;
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Vec3 normal[3];
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u8 color[2][4];
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float texCoords[8][2];
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};
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struct OutputVertexData
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{
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Vec3 mvPosition;
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Vec4 projectedPosition;
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Vec3 screenPosition;
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Vec3 normal[3];
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u8 color[2][4];
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Vec3 texCoords[8];
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void Lerp(float t, OutputVertexData *a, OutputVertexData *b)
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{
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#define LINTERP(T, OUT, IN) (OUT) + ((IN - OUT) * T)
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#define LINTERP_INT(T, OUT, IN) (OUT) + (((IN - OUT) * T) >> 8)
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mvPosition = LINTERP(t, a->mvPosition, b->mvPosition);
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projectedPosition.x = LINTERP(t, a->projectedPosition.x, b->projectedPosition.x);
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projectedPosition.y = LINTERP(t, a->projectedPosition.y, b->projectedPosition.y);
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projectedPosition.z = LINTERP(t, a->projectedPosition.z, b->projectedPosition.z);
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projectedPosition.w = LINTERP(t, a->projectedPosition.w, b->projectedPosition.w);
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for (int i = 0; i < 3; ++i)
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{
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normal[i] = LINTERP(t, a->normal[i], b->normal[i]);
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}
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u16 t_int = (u16)(t * 256);
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for (int i = 0; i < 4; ++i)
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{
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color[0][i] = LINTERP_INT(t_int, a->color[0][i], b->color[0][i]);
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color[1][i] = LINTERP_INT(t_int, a->color[1][i], b->color[1][i]);
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}
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for (int i = 0; i < 8; ++i)
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{
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texCoords[i] = LINTERP(t, a->texCoords[i], b->texCoords[i]);
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}
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#undef LINTERP
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#undef LINTERP_INT
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}
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};
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#endif
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