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 | // vertex - loads vertices |
42 | // |
43 | |
44 | static void uc1_vertex() |
45 | { |
46 | Check_FrameSkip; |
47 | |
48 | int v0 = (rdp.cmd0 >> 17) & 0x7F; // Current vertex |
49 | int n = (rdp.cmd0 >> 10) & 0x3F; // Number to copy |
50 | rsp_vertex(v0, n); |
51 | } |
52 | |
53 | // |
54 | // tri1 - renders a triangle |
55 | // |
56 | |
57 | static void uc1_tri1() |
58 | { |
59 | Check_FrameSkip; |
60 | |
61 | if (rdp.skip_drawing) |
62 | { |
63 | LRDP("uc1:tri1. skipped\n"); |
64 | return; |
65 | } |
66 | FRDP("uc1:tri1 #%d - %d, %d, %d - %08lx - %08lx\n", rdp.tri_n, |
67 | ((rdp.cmd1 >> 17) & 0x7F), |
68 | ((rdp.cmd1 >> 9) & 0x7F), |
69 | ((rdp.cmd1 >> 1) & 0x7F), rdp.cmd0, rdp.cmd1); |
70 | |
71 | VERTEX *v[3] = { |
72 | &rdp.vtx[(rdp.cmd1 >> 17) & 0x7F], |
73 | &rdp.vtx[(rdp.cmd1 >> 9) & 0x7F], |
74 | &rdp.vtx[(rdp.cmd1 >> 1) & 0x7F] |
75 | }; |
76 | |
77 | rsp_tri1(v); |
78 | } |
79 | |
80 | static void uc1_tri2 () |
81 | { |
82 | Check_FrameSkip; |
83 | |
84 | if (rdp.skip_drawing) |
85 | { |
86 | LRDP("uc1:tri2. skipped\n"); |
87 | return; |
88 | } |
89 | LRDP("uc1:tri2"); |
90 | |
91 | FRDP(" #%d, #%d - %d, %d, %d - %d, %d, %d\n", rdp.tri_n, rdp.tri_n+1, |
92 | ((rdp.cmd0 >> 17) & 0x7F), |
93 | ((rdp.cmd0 >> 9) & 0x7F), |
94 | ((rdp.cmd0 >> 1) & 0x7F), |
95 | ((rdp.cmd1 >> 17) & 0x7F), |
96 | ((rdp.cmd1 >> 9) & 0x7F), |
97 | ((rdp.cmd1 >> 1) & 0x7F)); |
98 | |
99 | VERTEX *v[6] = { |
100 | &rdp.vtx[(rdp.cmd0 >> 17) & 0x7F], |
101 | &rdp.vtx[(rdp.cmd0 >> 9) & 0x7F], |
102 | &rdp.vtx[(rdp.cmd0 >> 1) & 0x7F], |
103 | &rdp.vtx[(rdp.cmd1 >> 17) & 0x7F], |
104 | &rdp.vtx[(rdp.cmd1 >> 9) & 0x7F], |
105 | &rdp.vtx[(rdp.cmd1 >> 1) & 0x7F] |
106 | }; |
107 | |
108 | rsp_tri2(v); |
109 | } |
110 | |
111 | static void uc1_line3d() |
112 | { |
113 | Check_FrameSkip; |
114 | |
115 | if (!settings.force_quad3d && ((rdp.cmd1&0xFF000000) == 0) && ((rdp.cmd0&0x00FFFFFF) == 0)) |
116 | { |
117 | wxUint16 width = (wxUint16)(rdp.cmd1&0xFF) + 3; |
118 | |
119 | FRDP("uc1:line3d width: %d #%d, #%d - %d, %d\n", width, rdp.tri_n, rdp.tri_n+1, |
120 | (rdp.cmd1 >> 17) & 0x7F, |
121 | (rdp.cmd1 >> 9) & 0x7F); |
122 | |
123 | VERTEX *v[3] = { |
124 | &rdp.vtx[(rdp.cmd1 >> 17) & 0x7F], |
125 | &rdp.vtx[(rdp.cmd1 >> 9) & 0x7F], |
126 | &rdp.vtx[(rdp.cmd1 >> 9) & 0x7F] |
127 | }; |
128 | wxUint32 cull_mode = (rdp.flags & CULLMASK) >> CULLSHIFT; |
129 | rdp.flags |= CULLMASK; |
130 | rdp.update |= UPDATE_CULL_MODE; |
131 | rsp_tri1(v, width); |
132 | rdp.flags ^= CULLMASK; |
133 | rdp.flags |= cull_mode << CULLSHIFT; |
134 | rdp.update |= UPDATE_CULL_MODE; |
135 | } |
136 | else |
137 | { |
138 | FRDP("uc1:quad3d #%d, #%d\n", rdp.tri_n, rdp.tri_n+1); |
139 | |
140 | VERTEX *v[6] = { |
141 | &rdp.vtx[(rdp.cmd1 >> 25) & 0x7F], |
142 | &rdp.vtx[(rdp.cmd1 >> 17) & 0x7F], |
143 | &rdp.vtx[(rdp.cmd1 >> 9) & 0x7F], |
144 | &rdp.vtx[(rdp.cmd1 >> 1) & 0x7F], |
145 | &rdp.vtx[(rdp.cmd1 >> 25) & 0x7F], |
146 | &rdp.vtx[(rdp.cmd1 >> 9) & 0x7F] |
147 | }; |
148 | |
149 | rsp_tri2(v); |
150 | } |
151 | } |
152 | |
153 | wxUint32 branch_dl = 0; |
154 | |
155 | static void uc1_rdphalf_1() |
156 | { |
157 | LRDP("uc1:rdphalf_1\n"); |
158 | branch_dl = rdp.cmd1; |
159 | rdphalf_1(); |
160 | } |
161 | |
162 | static void uc1_branch_z() |
163 | { |
164 | wxUint32 addr = segoffset(branch_dl); |
165 | FRDP ("uc1:branch_less_z, addr: %08lx\n", addr); |
166 | wxUint32 vtx = (rdp.cmd0 & 0xFFF) >> 1; |
167 | if( fabs(rdp.vtx[vtx].z) <= (rdp.cmd1/*&0xFFFF*/) ) |
168 | { |
169 | rdp.pc[rdp.pc_i] = addr; |
170 | } |
171 | } |