GLES1RICE: Update from upstream
[mupen64plus-pandora.git] / source / gles2glide64 / src / Glide64 / ucode05.h
... / ...
CommitLineData
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
40int cur_mtx = 0;
41int billboarding = 0;
42int vtx_last = 0;
43wxUint32 dma_offset_mtx = 0;
44wxUint32 dma_offset_vtx = 0;
45
46static void uc5_dma_offsets ()
47{
48 dma_offset_mtx = rdp.cmd0 & 0x00FFFFFF;
49 dma_offset_vtx = rdp.cmd1 & 0x00FFFFFF;
50 vtx_last = 0;
51 FRDP("uc5:dma_offsets - mtx: %08lx, vtx: %08lx\n", dma_offset_mtx, dma_offset_vtx);
52}
53
54static void uc5_matrix ()
55{
56 // Use segment offset to get the address
57 wxUint32 addr = dma_offset_mtx + (segoffset(rdp.cmd1) & BMASK);
58
59 wxUint8 n = (wxUint8)((rdp.cmd0 >> 16) & 0xF);
60 wxUint8 multiply;
61
62 if (n == 0) //DKR
63 {
64 n = (wxUint8)((rdp.cmd0 >> 22) & 0x3);
65 multiply = 0;
66 }
67 else //JF
68 {
69 multiply = (wxUint8)((rdp.cmd0 >> 23) & 0x1);
70 }
71
72 cur_mtx = n;
73
74 FRDP("uc5:matrix - #%d, addr: %08lx\n", n, addr);
75
76 if (multiply)
77 {
78 DECLAREALIGN16VAR(m[4][4]);
79 load_matrix(m, addr);
80 DECLAREALIGN16VAR(m_src[4][4]);
81 memcpy (m_src, rdp.dkrproj[0], 64);
82 MulMatrices(m, m_src, rdp.dkrproj[n]);
83 }
84 else
85 {
86 load_matrix(rdp.dkrproj[n], addr);
87 }
88 rdp.update |= UPDATE_MULT_MAT;
89
90#ifdef EXTREME_LOGGING
91 FRDP ("{%f,%f,%f,%f}\n", rdp.dkrproj[n][0][0], rdp.dkrproj[n][0][1], rdp.dkrproj[n][0][2], rdp.dkrproj[n][0][3]);
92 FRDP ("{%f,%f,%f,%f}\n", rdp.dkrproj[n][1][0], rdp.dkrproj[n][1][1], rdp.dkrproj[n][1][2], rdp.dkrproj[n][1][3]);
93 FRDP ("{%f,%f,%f,%f}\n", rdp.dkrproj[n][2][0], rdp.dkrproj[n][2][1], rdp.dkrproj[n][2][2], rdp.dkrproj[n][2][3]);
94 FRDP ("{%f,%f,%f,%f}\n", rdp.dkrproj[n][3][0], rdp.dkrproj[n][3][1], rdp.dkrproj[n][3][2], rdp.dkrproj[n][3][3]);
95
96 for (int i=0; i<3; i++)
97 {
98 FRDP ("proj %d\n", i);
99 FRDP ("{%f,%f,%f,%f}\n", rdp.dkrproj[i][0][0], rdp.dkrproj[i][0][1], rdp.dkrproj[i][0][2], rdp.dkrproj[i][0][3]);
100 FRDP ("{%f,%f,%f,%f}\n", rdp.dkrproj[i][1][0], rdp.dkrproj[i][1][1], rdp.dkrproj[i][1][2], rdp.dkrproj[i][1][3]);
101 FRDP ("{%f,%f,%f,%f}\n", rdp.dkrproj[i][2][0], rdp.dkrproj[i][2][1], rdp.dkrproj[i][2][2], rdp.dkrproj[i][2][3]);
102 FRDP ("{%f,%f,%f,%f}\n", rdp.dkrproj[i][3][0], rdp.dkrproj[i][3][1], rdp.dkrproj[i][3][2], rdp.dkrproj[i][3][3]);
103 }
104#endif
105}
106
107static void uc5_vertex ()
108{
109Check_FrameSkip;
110
111 wxUint32 addr = dma_offset_vtx + (segoffset(rdp.cmd1) & BMASK);
112
113 // | cccc cccc 1111 1??? 0000 0002 2222 2222 | cmd1 = address |
114 // c = vtx command
115 // 1 = method #1 of getting count
116 // 2 = method #2 of getting count
117 // ? = unknown, but used
118 // 0 = unused
119
120 int n = ((rdp.cmd0 >> 19) & 0x1F);// + 1;
121 if (settings.hacks&hack_Diddy)
122 n++;
123
124 if (rdp.cmd0 & 0x00010000)
125 {
126 if (billboarding)
127 vtx_last = 1;
128 }
129 else
130 vtx_last = 0;
131
132 int first = ((rdp.cmd0 >> 9) & 0x1F) + vtx_last;
133 FRDP ("uc5:vertex - addr: %08lx, first: %d, count: %d, matrix: %08lx\n", addr, first, n, cur_mtx);
134
135 int prj = cur_mtx;
136
137 int start = 0;
138 float x, y, z;
139 for (int i=first; i<first+n; i++)
140 {
141 start = (i-first) * 10;
142 VERTEX *v = &rdp.vtx[i];
143 x = (float)((short*)gfx.RDRAM)[(((addr+start) >> 1) + 0)^1];
144 y = (float)((short*)gfx.RDRAM)[(((addr+start) >> 1) + 1)^1];
145 z = (float)((short*)gfx.RDRAM)[(((addr+start) >> 1) + 2)^1];
146
147 v->x = x*rdp.dkrproj[prj][0][0] + y*rdp.dkrproj[prj][1][0] + z*rdp.dkrproj[prj][2][0] + rdp.dkrproj[prj][3][0];
148 v->y = x*rdp.dkrproj[prj][0][1] + y*rdp.dkrproj[prj][1][1] + z*rdp.dkrproj[prj][2][1] + rdp.dkrproj[prj][3][1];
149 v->z = x*rdp.dkrproj[prj][0][2] + y*rdp.dkrproj[prj][1][2] + z*rdp.dkrproj[prj][2][2] + rdp.dkrproj[prj][3][2];
150 v->w = x*rdp.dkrproj[prj][0][3] + y*rdp.dkrproj[prj][1][3] + z*rdp.dkrproj[prj][2][3] + rdp.dkrproj[prj][3][3];
151
152 if (billboarding)
153 {
154 v->x += rdp.vtx[0].x;
155 v->y += rdp.vtx[0].y;
156 v->z += rdp.vtx[0].z;
157 v->w += rdp.vtx[0].w;
158 }
159
160 if (fabs(v->w) < 0.001) v->w = 0.001f;
161 v->oow = 1.0f / v->w;
162 v->x_w = v->x * v->oow;
163 v->y_w = v->y * v->oow;
164 v->z_w = v->z * v->oow;
165
166 v->uv_calculated = 0xFFFFFFFF;
167 v->screen_translated = 0;
168 v->shade_mod = 0;
169
170 v->scr_off = 0;
171 if (v->x < -v->w) v->scr_off |= 1;
172 if (v->x > v->w) v->scr_off |= 2;
173 if (v->y < -v->w) v->scr_off |= 4;
174 if (v->y > v->w) v->scr_off |= 8;
175 if (v->w < 0.1f) v->scr_off |= 16;
176 if (fabs(v->z_w) > 1.0) v->scr_off |= 32;
177
178 v->r = ((wxUint8*)gfx.RDRAM)[(addr+start + 6)^3];
179 v->g = ((wxUint8*)gfx.RDRAM)[(addr+start + 7)^3];
180 v->b = ((wxUint8*)gfx.RDRAM)[(addr+start + 8)^3];
181 v->a = ((wxUint8*)gfx.RDRAM)[(addr+start + 9)^3];
182 CalculateFog (v);
183
184#ifdef EXTREME_LOGGING
185 FRDP ("v%d - x: %f, y: %f, z: %f, w: %f, z_w: %f, r=%d, g=%d, b=%d, a=%d\n", i, v->x, v->y, v->z, v->w, v->z_w, v->r, v->g, v->b, v->a);
186#endif
187 }
188
189 vtx_last += n;
190}
191
192static void uc5_tridma ()
193{
194Check_FrameSkip;
195
196 vtx_last = 0; // we've drawn something, so the vertex index needs resetting
197 if (rdp.skip_drawing)
198 return;
199
200 // | cccc cccc 2222 0000 1111 1111 1111 0000 | cmd1 = address |
201 // c = tridma command
202 // 1 = method #1 of getting count
203 // 2 = method #2 of getting count
204 // 0 = unused
205
206 wxUint32 addr = segoffset(rdp.cmd1) & BMASK;
207 int num = (rdp.cmd0 & 0xFFF0) >> 4;
208 //int num = ((rdp.cmd0 & 0x00F00000) >> 20) + 1; // same thing!
209 FRDP("uc5:tridma #%d - addr: %08lx, count: %d\n", rdp.tri_n, addr, num);
210
211 int start, v0, v1, v2, flags;
212 for (int i=0; i<num; i++)
213 {
214 start = i << 4;
215 v0 = gfx.RDRAM[addr+start];
216 v1 = gfx.RDRAM[addr+start+1];
217 v2 = gfx.RDRAM[addr+start+2];
218
219 FRDP("tri #%d - %d, %d, %d\n", rdp.tri_n, v0, v1, v2);
220
221 VERTEX *v[3] = {
222 &rdp.vtx[v0],
223 &rdp.vtx[v1],
224 &rdp.vtx[v2]
225 };
226
227 flags = gfx.RDRAM[addr+start+3];
228
229 if (flags & 0x40) { // no cull
230 rdp.flags &= ~CULLMASK;
231 grCullMode (GR_CULL_DISABLE);
232 }
233 else { // front cull
234 rdp.flags &= ~CULLMASK;
235 if (rdp.view_scale[0] < 0) {
236 rdp.flags |= CULL_BACK; // agh, backwards culling
237 grCullMode (GR_CULL_POSITIVE);
238 }
239 else {
240 rdp.flags |= CULL_FRONT;
241 grCullMode (GR_CULL_NEGATIVE);
242 }
243 }
244 start += 4;
245
246 v[0]->ou = (float)((short*)gfx.RDRAM)[((addr+start) >> 1) + 5] / 32.0f;
247 v[0]->ov = (float)((short*)gfx.RDRAM)[((addr+start) >> 1) + 4] / 32.0f;
248 v[1]->ou = (float)((short*)gfx.RDRAM)[((addr+start) >> 1) + 3] / 32.0f;
249 v[1]->ov = (float)((short*)gfx.RDRAM)[((addr+start) >> 1) + 2] / 32.0f;
250 v[2]->ou = (float)((short*)gfx.RDRAM)[((addr+start) >> 1) + 1] / 32.0f;
251 v[2]->ov = (float)((short*)gfx.RDRAM)[((addr+start) >> 1) + 0] / 32.0f;
252
253 v[0]->uv_calculated = 0xFFFFFFFF;
254 v[1]->uv_calculated = 0xFFFFFFFF;
255 v[2]->uv_calculated = 0xFFFFFFFF;
256
257 if (cull_tri(v))
258 rdp.tri_n ++;
259 else
260 {
261 update ();
262
263 draw_tri (v);
264 rdp.tri_n ++;
265 }
266 }
267}
268
269static void uc5_dl_in_mem ()
270{
271 wxUint32 addr = segoffset(rdp.cmd1) & BMASK;
272 int count = (rdp.cmd0 & 0x00FF0000) >> 16;
273 FRDP ("uc5:dl_in_mem - addr: %08lx, count: %d\n", addr, count);
274
275 if (rdp.pc_i >= 9) {
276 RDP_E ("** DL stack overflow **\n");
277 LRDP("** DL stack overflow **\n");
278 return;
279 }
280 rdp.pc_i ++; // go to the next PC in the stack
281 rdp.pc[rdp.pc_i] = addr; // jump to the address
282 rdp.dl_count = count + 1;
283}
284
285static void uc5_moveword()
286{
287 LRDP("uc5:moveword ");
288
289 // Find which command this is (lowest byte of cmd0)
290 switch (rdp.cmd0 & 0xFF)
291 {
292 case 0x02: // moveword matrix 2 billboard
293 billboarding = (rdp.cmd1 & 1);
294 FRDP ("matrix billboard - %s\n", str_offon[billboarding]);
295 break;
296
297 case 0x04: // clip (verified same)
298 if (((rdp.cmd0>>8)&0xFFFF) == 0x04)
299 {
300 rdp.clip_ratio = sqrt((float)rdp.cmd1);
301 rdp.update |= UPDATE_VIEWPORT;
302 }
303 FRDP ("clip %08lx, %08lx\n", rdp.cmd0, rdp.cmd1);
304 break;
305
306 case 0x06: // segment (verified same)
307 FRDP ("segment: %08lx -> seg%d\n", rdp.cmd1, (rdp.cmd0 >> 10) & 0x0F);
308 rdp.segment[(rdp.cmd0 >> 10) & 0x0F] = rdp.cmd1;
309 break;
310
311 case 0x08:
312 {
313 rdp.fog_multiplier = (short)(rdp.cmd1 >> 16);
314 rdp.fog_offset = (short)(rdp.cmd1 & 0x0000FFFF);
315 FRDP ("fog: multiplier: %f, offset: %f\n", rdp.fog_multiplier, rdp.fog_offset);
316 // rdp.update |= UPDATE_FOG_ENABLED;
317 }
318 break;
319
320 case 0x0a: // moveword matrix select
321 cur_mtx = (rdp.cmd1 >> 6) & 3;
322 FRDP ("matrix select - mtx: %d\n", cur_mtx);
323 break;
324
325 default:
326 FRDP ("(unknown) %02lx - IGNORED\n", rdp.cmd0&0xFF);
327 }
328}
329
330static void uc5_setgeometrymode()
331{
332 FRDP("uc0:setgeometrymode %08lx\n", rdp.cmd1);
333
334 rdp.geom_mode |= rdp.cmd1;
335
336 if (rdp.cmd1 & 0x00000001) // Z-Buffer enable
337 {
338 if (!(rdp.flags & ZBUF_ENABLED))
339 {
340 rdp.flags |= ZBUF_ENABLED;
341 rdp.update |= UPDATE_ZBUF_ENABLED;
342 }
343 }
344
345 //Added by Gonetz
346 if (rdp.cmd1 & 0x00010000) // Fog enable
347 {
348 if (!(rdp.flags & FOG_ENABLED))
349 {
350 rdp.flags |= FOG_ENABLED;
351 rdp.update |= UPDATE_FOG_ENABLED;
352 }
353 }
354}
355
356static void uc5_cleargeometrymode()
357{
358 FRDP("uc0:cleargeometrymode %08lx\n", rdp.cmd1);
359
360 rdp.geom_mode &= (~rdp.cmd1);
361
362 if (rdp.cmd1 & 0x00000001) // Z-Buffer enable
363 {
364 if (rdp.flags & ZBUF_ENABLED)
365 {
366 rdp.flags ^= ZBUF_ENABLED;
367 rdp.update |= UPDATE_ZBUF_ENABLED;
368 }
369 }
370 //Added by Gonetz
371 if (rdp.cmd1 & 0x00010000) // Fog enable
372 {
373 if (rdp.flags & FOG_ENABLED)
374 {
375 rdp.flags ^= FOG_ENABLED;
376 rdp.update |= UPDATE_FOG_ENABLED;
377 }
378 }
379}