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71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/*
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* Glide64 - Glide video plugin for Nintendo 64 emulators.
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* Copyright (c) 2002 Dave2001
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*
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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; either version 2 of the License, or
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* any later version.
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*
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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 for more details.
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*
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* You should have received a copy of the GNU General Public
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* Licence along with this program; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA
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*/
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//****************************************************************
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//
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// Glide64 - Glide Plugin for Nintendo 64 emulators (tested mostly with Project64)
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// Project started on December 29th, 2001
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//
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// To modify Glide64:
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// * Write your name and (optional)email, commented by your work, so I know who did it, and so that you can find which parts you modified when it comes time to send it to me.
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// * Do NOT send me the whole project or file that you modified. Take out your modified code sections, and tell me where to put them. If people sent the whole thing, I would have many different versions, but no idea how to combine them all.
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//
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// Official Glide64 development channel: #Glide64 on EFnet
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//
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// Original author: Dave2001 (Dave2999@hotmail.com)
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// Other authors: Gonetz, Gugaman
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//
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//****************************************************************
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__inline float DotProduct(register float *v1, register float *v2)
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{
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register float result;
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result = v1[0]*v2[0] + v1[1]*v2[1] + v1[2]*v2[2];
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return(result);
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}
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__inline void NormalizeVector(float *v)
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{
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register float len;
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len = sqrtf(v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
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if (len > 0.0f)
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{
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v[0] /= len;
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v[1] /= len;
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v[2] /= len;
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}
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}
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__inline void InverseTransformVector (float *src, float *dst, float mat[4][4])
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{
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dst[0] = mat[0][0]*src[0] + mat[0][1]*src[1] + mat[0][2]*src[2];
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dst[1] = mat[1][0]*src[0] + mat[1][1]*src[1] + mat[1][2]*src[2];
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dst[2] = mat[2][0]*src[0] + mat[2][1]*src[1] + mat[2][2]*src[2];
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}
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void calc_light (VERTEX *v);
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void calc_linear (VERTEX *v);
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void calc_sphere (VERTEX *v);
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void math_init();
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typedef void (__stdcall *MULMATRIX)(float m1[4][4],float m2[4][4],float r[4][4]);
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extern MULMATRIX MulMatrices;
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