98e75f2d |
1 | /* |
2 | * Glide64 - Glide video plugin for Nintendo 64 emulators. |
3 | * Copyright (c) 2002 Dave2001 |
4 | * Copyright (c) 2003-2009 Sergey 'Gonetz' Lipski |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation; either version 2 of the License, or |
9 | * any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with this program; if not, write to the Free Software |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | */ |
20 | |
21 | //**************************************************************** |
22 | // |
23 | // Glide64 - Glide Plugin for Nintendo 64 emulators |
24 | // Project started on December 29th, 2001 |
25 | // |
26 | // Authors: |
27 | // Dave2001, original author, founded the project in 2001, left it in 2002 |
28 | // Gugaman, joined the project in 2002, left it in 2002 |
29 | // Sergey 'Gonetz' Lipski, joined the project in 2002, main author since fall of 2002 |
30 | // Hiroshi 'KoolSmoky' Morii, joined the project in 2007 |
31 | // |
32 | //**************************************************************** |
33 | // |
34 | // To modify Glide64: |
35 | // * 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. |
36 | // * 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. |
37 | // |
38 | //**************************************************************** |
39 | |
40 | #ifndef Util_H |
41 | #define Util_H |
42 | |
43 | #define NOT_TMU0 0x00 |
44 | #define NOT_TMU1 0x01 |
45 | #define NOT_TMU2 0x02 |
46 | |
47 | void util_init (); |
48 | void render_tri (wxUint16 linew = 0); |
49 | |
50 | int cull_tri (VERTEX **v); |
51 | void draw_tri (VERTEX **v, wxUint16 linew = 0); |
52 | void do_triangle_stuff (wxUint16 linew = 0, int old_interpolate = TRUE); |
53 | void do_triangle_stuff_2 (wxUint16 linew = 0); |
54 | void add_tri (VERTEX *v, int n, int type); |
55 | void apply_shade_mods (VERTEX *v); |
56 | |
57 | void update (); |
58 | void update_scissor (); |
59 | |
60 | void set_message_combiner (); |
61 | |
62 | float ScaleZ(float z); |
63 | |
64 | // positional and texel coordinate clipping |
65 | #define CCLIP(ux,lx,ut,lt,uc,lc) \ |
66 | if (ux > lx || lx < uc || ux > lc) { rdp.tri_n += 2; return; } \ |
67 | if (ux < uc) { \ |
68 | float p = (uc-ux)/(lx-ux); \ |
69 | ut = p*(lt-ut)+ut; \ |
70 | ux = uc; \ |
71 | } \ |
72 | if (lx > lc) { \ |
73 | float p = (lc-ux)/(lx-ux); \ |
74 | lt = p*(lt-ut)+ut; \ |
75 | lx = lc; \ |
76 | } |
77 | |
78 | #define CCLIP2(ux,lx,ut,lt,un,ln,uc,lc) \ |
79 | if (ux > lx || lx < uc || ux > lc) { rdp.tri_n += 2; return; } \ |
80 | if (ux < uc) { \ |
81 | float p = (uc-ux)/(lx-ux); \ |
82 | ut = p*(lt-ut)+ut; \ |
83 | un = p*(ln-un)+un; \ |
84 | ux = uc; \ |
85 | } \ |
86 | if (lx > lc) { \ |
87 | float p = (lc-ux)/(lx-ux); \ |
88 | lt = p*(lt-ut)+ut; \ |
89 | ln = p*(ln-un)+un; \ |
90 | lx = lc; \ |
91 | } |
92 | |
93 | #if defined(__GNUC__) |
94 | #define bswap32(x) __builtin_bswap32(x) |
95 | #elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64)) |
96 | #include <stdlib.h> |
97 | #define bswap32(x) _byteswap_ulong(x) |
98 | #else |
99 | static inline uint32_t bswap32(uint32_t val) |
100 | { |
101 | return (((val & 0xff000000) >> 24) | |
102 | ((val & 0x00ff0000) >> 8) | |
103 | ((val & 0x0000ff00) << 8) | |
104 | ((val & 0x000000ff) << 24)); |
105 | } |
106 | #endif |
107 | |
108 | #define ALOWORD(x) (*((uint16_t*)&(x))) // low word |
109 | |
110 | template<class T> static inline T __ROR__(T value, unsigned int count) |
111 | { |
112 | const unsigned int nbits = sizeof(T) * 8; |
113 | count %= nbits; |
114 | |
115 | T low = value << (nbits - count); |
116 | value >>= count; |
117 | value |= low; |
118 | return value; |
119 | } |
120 | |
121 | // rotate left |
122 | template<class T> static T __ROL__(T value, unsigned int count) |
123 | { |
124 | const unsigned int nbits = sizeof(T) * 8; |
125 | count %= nbits; |
126 | |
127 | T high = value >> (nbits - count); |
128 | value <<= count; |
129 | value |= high; |
130 | return value; |
131 | } |
132 | |
133 | #endif // ifndef Util_H |