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 | //**************************************************************** |
41 | // uCode 4 - RSP SW 2.0D EXT |
42 | //**************************************************************** |
43 | |
44 | static void uc4_vertex() |
45 | { |
46 | Check_FrameSkip; |
47 | |
48 | int v0 = 0; // Current vertex |
49 | int n = ((rdp.cmd0 >> 4) & 0xFFF) / 33 + 1; // Number of vertices to copy |
50 | rsp_vertex(v0, n); |
51 | } |
52 | |
53 | static void uc4_tri1() |
54 | { |
55 | Check_FrameSkip; |
56 | |
57 | int v1 = ((rdp.cmd1 >> 16) & 0xFF) / 5; |
58 | int v2 = ((rdp.cmd1 >> 8) & 0xFF) / 5; |
59 | int v3 = (rdp.cmd1 & 0xFF) / 5; |
60 | FRDP("uc4:tri1 #%d - %d, %d, %d\n", rdp.tri_n, |
61 | v1, v2, v3); |
62 | |
63 | VERTEX *v[3] = { |
64 | &rdp.vtx[v1], |
65 | &rdp.vtx[v2], |
66 | &rdp.vtx[v3] |
67 | }; |
68 | |
69 | rsp_tri1(v); |
70 | } |
71 | |
72 | static void uc4_quad3d() |
73 | { |
74 | Check_FrameSkip; |
75 | |
76 | FRDP("uc4:quad3d #%d, #%d\n", rdp.tri_n, rdp.tri_n+1); |
77 | |
78 | VERTEX *v[6] = { |
79 | &rdp.vtx[((rdp.cmd1 >> 24) & 0xFF) / 5], |
80 | &rdp.vtx[((rdp.cmd1 >> 16) & 0xFF) / 5], |
81 | &rdp.vtx[((rdp.cmd1 >> 8) & 0xFF) / 5], |
82 | &rdp.vtx[((rdp.cmd1 >> 24) & 0xFF) / 5], |
83 | &rdp.vtx[((rdp.cmd1 >> 8) & 0xFF) / 5], |
84 | &rdp.vtx[(rdp.cmd1 & 0xFF) / 5] |
85 | }; |
86 | |
87 | rsp_tri2(v); |
88 | } |