96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/*
|
|
* Glide64 - Glide video plugin for Nintendo 64 emulators.
|
|
* Copyright (c) 2002 Dave2001
|
|
*
|
|
* 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 of the License, or
|
|
* 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 this program; if not, write to the Free
|
|
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
//****************************************************************
|
|
//
|
|
// Glide64 - Glide Plugin for Nintendo 64 emulators (tested mostly with Project64)
|
|
// Project started on December 29th, 2001
|
|
//
|
|
// To modify Glide64:
|
|
// * 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.
|
|
// * 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.
|
|
//
|
|
// Official Glide64 development channel: #Glide64 on EFnet
|
|
//
|
|
// Original author: Dave2001 (Dave2999@hotmail.com)
|
|
// Other authors: Gonetz, Gugaman
|
|
//
|
|
//****************************************************************
|
|
|
|
#ifndef Util_H
|
|
#define Util_H
|
|
|
|
#include "winlnxdefs.h"
|
|
#include "rdp.h"
|
|
|
|
#define NOT_TMU0 0x00
|
|
#define NOT_TMU1 0x01
|
|
#define NOT_TMU2 0x02
|
|
|
|
void util_init ();
|
|
void clip_z ();
|
|
void clip_tri (WORD linew = 0);
|
|
|
|
BOOL cull_tri (VERTEX **v);
|
|
void DrawTri (VERTEX **v, WORD linew = 0);
|
|
void do_triangle_stuff (WORD linew = 0);
|
|
void do_triangle_stuff_2 (WORD linew = 0);
|
|
void add_tri (VERTEX *v, int n, int type);
|
|
void apply_shade_mods (VERTEX *v);
|
|
|
|
void update ();
|
|
void update_scissor ();
|
|
|
|
void set_message_combiner ();
|
|
|
|
void fix_tex_coord (VERTEX **v);
|
|
|
|
// positional and texel coordinate clipping
|
|
#define CCLIP(ux,lx,ut,lt,uc,lc) \
|
|
if (ux > lx || lx < uc || ux > lc) { rdp.tri_n += 2; return; } \
|
|
if (ux < uc) { \
|
|
float p = (uc-ux)/(lx-ux); \
|
|
ut = p*(lt-ut)+ut; \
|
|
ux = uc; \
|
|
} \
|
|
if (lx > lc) { \
|
|
float p = (lc-ux)/(lx-ux); \
|
|
lt = p*(lt-ut)+ut; \
|
|
lx = lc; \
|
|
}
|
|
|
|
#define CCLIP2(ux,lx,ut,lt,un,ln,uc,lc) \
|
|
if (ux > lx || lx < uc || ux > lc) { rdp.tri_n += 2; return; } \
|
|
if (ux < uc) { \
|
|
float p = (uc-ux)/(lx-ux); \
|
|
ut = p*(lt-ut)+ut; \
|
|
un = p*(ln-un)+un; \
|
|
ux = uc; \
|
|
} \
|
|
if (lx > lc) { \
|
|
float p = (lc-ux)/(lx-ux); \
|
|
lt = p*(lt-ut)+ut; \
|
|
ln = p*(ln-un)+un; \
|
|
lx = lc; \
|
|
}
|
|
|
|
#endif // ifndef Util_H
|
|
|