93c18cb4 |
1 | // (c) Copyright 2006-2009 notaz, All rights reserved.\r |
492d353a |
2 | // Free for non-commercial use.\r |
3 | \r |
4 | // For commercial use, separate licencing terms must be obtained.\r |
5 | \r |
6 | #include <stdio.h>\r |
b188c2b6 |
7 | #include <unistd.h>\r |
492d353a |
8 | \r |
492d353a |
9 | #include "../common/emu.h"\r |
7fd581f4 |
10 | #include "../common/menu.h"\r |
d2f29611 |
11 | #include "../common/plat.h"\r |
12 | #include "../common/arm_utils.h"\r |
b3972d82 |
13 | #include "../linux/sndout_oss.h"\r |
b188c2b6 |
14 | #include "../linux/fbdev.h"\r |
de9b1274 |
15 | #include "asm_utils.h"\r |
d2f29611 |
16 | #include "version.h"\r |
492d353a |
17 | \r |
f11bad75 |
18 | #include <pico/pico_int.h>\r |
492d353a |
19 | \r |
492d353a |
20 | \r |
492d353a |
21 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r |
d2f29611 |
22 | static unsigned char temp_frame[g_screen_width * g_screen_height * 2];\r |
23 | unsigned char *PicoDraw2FB = temp_frame;\r |
0c9ae592 |
24 | const char *renderer_names[] = { NULL };\r |
25 | const char *renderer_names32x[] = { NULL };\r |
f6eaae4f |
26 | char cpu_clk_name[] = "Max CPU clock";\r |
27 | \r |
28 | enum {\r |
29 | SCALE_1x1,\r |
30 | SCALE_2x2_3x2,\r |
31 | SCALE_2x2_2x2,\r |
32 | };\r |
492d353a |
33 | \r |
f6eaae4f |
34 | static int get_cpu_clock(void)\r |
35 | {\r |
36 | FILE *f;\r |
37 | int ret = 0;\r |
38 | f = fopen("/proc/pandora/cpu_mhz_max", "r");\r |
39 | if (f) {\r |
40 | fscanf(f, "%d", &ret);\r |
41 | fclose(f);\r |
42 | }\r |
43 | return ret;\r |
44 | }\r |
492d353a |
45 | \r |
93c18cb4 |
46 | void pemu_prep_defconfig(void)\r |
492d353a |
47 | {\r |
d2f29611 |
48 | // XXX: move elsewhere\r |
49 | g_menubg_ptr = temp_frame;\r |
b188c2b6 |
50 | \r |
51 | defaultConfig.EmuOpt |= EOPT_VSYNC;\r |
209a7eff |
52 | defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX|POPT_EN_MCD_PSYNC;\r |
f6eaae4f |
53 | defaultConfig.scaling = SCALE_2x2_3x2;\r |
492d353a |
54 | }\r |
55 | \r |
d2f29611 |
56 | void pemu_validate_config(void)\r |
492d353a |
57 | {\r |
f6eaae4f |
58 | currentConfig.CPUclock = get_cpu_clock();\r |
492d353a |
59 | }\r |
60 | \r |
d2f29611 |
61 | // FIXME: cleanup\r |
046c4540 |
62 | static void osd_text(int x, int y, const char *text)\r |
492d353a |
63 | {\r |
64 | int len = strlen(text)*8;\r |
65 | \r |
662e622b |
66 | if (0) {\r |
492d353a |
67 | int *p, i, h;\r |
68 | x &= ~3; // align x\r |
69 | len = (len+3) >> 2;\r |
70 | for (h = 0; h < 8; h++) {\r |
7fd581f4 |
71 | p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h));\r |
492d353a |
72 | for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r |
73 | }\r |
b7911801 |
74 | emu_text_out8(x, y, text);\r |
492d353a |
75 | } else {\r |
76 | int *p, i, h;\r |
77 | x &= ~1; // align x\r |
78 | len++;\r |
79 | for (h = 0; h < 16; h++) {\r |
7fd581f4 |
80 | p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h));\r |
de9b1274 |
81 | for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r |
492d353a |
82 | }\r |
b7911801 |
83 | text_out16(x, y, text);\r |
492d353a |
84 | }\r |
85 | }\r |
86 | \r |
87 | static void draw_cd_leds(void)\r |
88 | {\r |
89 | // static\r |
90 | int old_reg;\r |
91 | // if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r |
92 | old_reg = Pico_mcd->s68k_regs[0];\r |
93 | \r |
662e622b |
94 | if (0) {\r |
492d353a |
95 | // 8-bit modes\r |
96 | unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r |
97 | unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r |
7fd581f4 |
98 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r |
99 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r |
100 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r |
101 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r |
102 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r |
103 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r |
492d353a |
104 | } else {\r |
105 | // 16-bit modes\r |
7fd581f4 |
106 | unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r |
492d353a |
107 | unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r |
108 | unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r |
e31266dd |
109 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r |
110 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r |
492d353a |
111 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r |
112 | }\r |
113 | }\r |
114 | \r |
f6eaae4f |
115 | static int emuscan_1x1(unsigned int num)\r |
de9b1274 |
116 | {\r |
209a7eff |
117 | DrawLineDest = (unsigned short *)g_screen_ptr +\r |
118 | g_screen_width * g_screen_height / 2 - g_screen_width * 240 / 2 +\r |
119 | num*g_screen_width + g_screen_width/2 - 320/2;\r |
de9b1274 |
120 | \r |
121 | return 0;\r |
122 | }\r |
123 | \r |
f6eaae4f |
124 | #define MAKE_EMUSCAN(name_, clut_name_, offs_, len_) \\r |
125 | static int name_(unsigned int num) \\r |
126 | { \\r |
127 | unsigned char *ps = HighCol+8; \\r |
128 | unsigned short *pd, *pal = HighPal; \\r |
129 | int sh = Pico.video.reg[0xC] & 8; \\r |
130 | int mask = 0xff; \\r |
131 | \\r |
132 | pd = (unsigned short *)g_screen_ptr + num*800*2 + offs_;\\r |
133 | \\r |
134 | if (Pico.m.dirtyPal) \\r |
135 | PicoDoHighPal555(sh); \\r |
136 | \\r |
137 | if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI)) \\r |
138 | mask = 0x3f; /* upper bits are priority stuff */\\r |
139 | \\r |
140 | clut_line##clut_name_(pd, ps, pal, (mask<<16) | len_); \\r |
141 | \\r |
142 | return 0; \\r |
492d353a |
143 | }\r |
144 | \r |
f6eaae4f |
145 | MAKE_EMUSCAN(emuscan_2x2_40, 2x2, 800/2 - 320*2/2, 320)\r |
146 | MAKE_EMUSCAN(emuscan_2x2_32, 2x2, 800/2 - 256*2/2, 256)\r |
147 | MAKE_EMUSCAN(emuscan_3x2_32, 3x2, 800/2 - 256*3/2, 256)\r |
148 | \r |
149 | #if 0 /* FIXME */\r |
b188c2b6 |
150 | static int EmuScanEnd16_32x(unsigned int num)\r |
151 | {\r |
152 | unsigned int *ps;\r |
153 | unsigned int *pd;\r |
154 | int len;\r |
155 | \r |
156 | ps = (unsigned int *)temp_frame;\r |
157 | pd = (unsigned int *)g_screen_ptr + (num*800*2 + 800/2 - 320*2/2) / 2;\r |
158 | \r |
159 | for (len = 320/2; len > 0; len--, ps++) {\r |
160 | unsigned int p, p1;\r |
161 | p1 = *ps;\r |
162 | p = p1 << 16;\r |
163 | p |= p >> 16;\r |
164 | *pd = pd[800/2] = p;\r |
165 | pd++;\r |
166 | \r |
167 | p = p1 >> 16;\r |
168 | p |= p << 16;\r |
169 | *pd = pd[800/2] = p;\r |
170 | pd++;\r |
171 | }\r |
172 | \r |
173 | return 0;\r |
174 | }\r |
f6eaae4f |
175 | #endif\r |
de9b1274 |
176 | \r |
b188c2b6 |
177 | void pemu_finalize_frame(const char *fps, const char *notice)\r |
492d353a |
178 | {\r |
d2f29611 |
179 | if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r |
180 | if (notice)\r |
b188c2b6 |
181 | osd_text(4, 464, notice);\r |
d2f29611 |
182 | if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r |
b188c2b6 |
183 | osd_text(640, 464, fps);\r |
492d353a |
184 | }\r |
d2f29611 |
185 | if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r |
492d353a |
186 | draw_cd_leds();\r |
d2f29611 |
187 | }\r |
492d353a |
188 | \r |
662e622b |
189 | void plat_video_toggle_renderer(int change, int is_menu)\r |
d2f29611 |
190 | {\r |
191 | // this will auto-select SMS/32X renderers\r |
662e622b |
192 | PicoDrawSetOutFormat(PDF_RGB555, 1);\r |
492d353a |
193 | }\r |
194 | \r |
d2f29611 |
195 | void plat_video_menu_enter(int is_rom_loaded)\r |
196 | {\r |
197 | }\r |
492d353a |
198 | \r |
d2f29611 |
199 | void plat_video_menu_begin(void)\r |
492d353a |
200 | {\r |
d2f29611 |
201 | memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4);\r |
492d353a |
202 | }\r |
203 | \r |
d2f29611 |
204 | void plat_video_menu_end(void)\r |
205 | {\r |
b188c2b6 |
206 | plat_video_flip();\r |
d2f29611 |
207 | }\r |
492d353a |
208 | \r |
d2f29611 |
209 | void plat_status_msg_clear(void)\r |
492d353a |
210 | {\r |
b188c2b6 |
211 | int s = g_screen_width * g_screen_height * 2;\r |
212 | int l = g_screen_width * 16 * 2;\r |
213 | int i;\r |
214 | \r |
215 | for (i = 0; i < fbdev_buffer_count; i++)\r |
216 | memset32((int *)((char *)fbdev_buffers[i] + s - l), 0, l / 4);\r |
492d353a |
217 | }\r |
218 | \r |
d2f29611 |
219 | void plat_status_msg_busy_next(const char *msg)\r |
220 | {\r |
221 | plat_status_msg_clear();\r |
b188c2b6 |
222 | pemu_finalize_frame("", msg);\r |
223 | plat_video_flip();\r |
d2f29611 |
224 | emu_status_msg("");\r |
225 | reset_timing = 1;\r |
226 | }\r |
492d353a |
227 | \r |
d2f29611 |
228 | void plat_status_msg_busy_first(const char *msg)\r |
229 | {\r |
230 | // memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
231 | plat_status_msg_busy_next(msg);\r |
232 | }\r |
233 | \r |
234 | void plat_update_volume(int has_changed, int is_up)\r |
492d353a |
235 | {\r |
236 | static int prev_frame = 0, wait_frames = 0;\r |
237 | int vol = currentConfig.volume;\r |
238 | \r |
239 | if (has_changed)\r |
240 | {\r |
d2f29611 |
241 | if (is_up) {\r |
242 | if (vol < 99) vol++;\r |
243 | } else {\r |
244 | if (vol > 0) vol--;\r |
492d353a |
245 | }\r |
d2f29611 |
246 | wait_frames = 0;\r |
247 | sndout_oss_setvol(vol, vol);\r |
248 | currentConfig.volume = vol;\r |
249 | emu_status_msg("VOL: %02i", vol);\r |
492d353a |
250 | prev_frame = Pico.m.frame_count;\r |
251 | }\r |
492d353a |
252 | }\r |
253 | \r |
209a7eff |
254 | void pemu_forced_frame(int opts, int no_scale)\r |
492d353a |
255 | {\r |
209a7eff |
256 | int oldscale = currentConfig.scaling;\r |
492d353a |
257 | int po_old = PicoOpt;\r |
492d353a |
258 | \r |
209a7eff |
259 | if (no_scale) {\r |
260 | currentConfig.scaling = SCALE_1x1;\r |
261 | emu_video_mode_change(0, 0, 0);\r |
262 | }\r |
263 | \r |
264 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
492d353a |
265 | PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r |
492d353a |
266 | \r |
492d353a |
267 | Pico.m.dirtyPal = 1;\r |
268 | PicoFrameDrawOnly();\r |
269 | \r |
492d353a |
270 | PicoOpt = po_old;\r |
209a7eff |
271 | currentConfig.scaling = oldscale;\r |
492d353a |
272 | }\r |
273 | \r |
d2f29611 |
274 | static void updateSound(int len)\r |
492d353a |
275 | {\r |
b188c2b6 |
276 | unsigned int t;\r |
277 | \r |
d2f29611 |
278 | len <<= 1;\r |
279 | if (PicoOpt & POPT_EN_STEREO)\r |
280 | len <<= 1;\r |
492d353a |
281 | \r |
b188c2b6 |
282 | // sndout_oss_can_write() not reliable..\r |
d2f29611 |
283 | if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r |
284 | return;\r |
492d353a |
285 | \r |
d2f29611 |
286 | /* avoid writing audio when lagging behind to prevent audio lag */\r |
b188c2b6 |
287 | if (PicoSkipFrame == 2)\r |
288 | return;\r |
289 | \r |
290 | t = plat_get_ticks_ms();\r |
291 | sndout_oss_write(PsndOut, len);\r |
292 | t = plat_get_ticks_ms() - t;\r |
293 | if (t > 1)\r |
294 | printf("audio lag %u\n", t);\r |
492d353a |
295 | }\r |
296 | \r |
93c18cb4 |
297 | void pemu_sound_start(void)\r |
fce20e73 |
298 | {\r |
fce20e73 |
299 | int target_fps = Pico.m.pal ? 50 : 60;\r |
300 | \r |
301 | PsndOut = NULL;\r |
302 | \r |
b188c2b6 |
303 | if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r |
fce20e73 |
304 | {\r |
b188c2b6 |
305 | int snd_excess_add, frame_samples;\r |
306 | int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r |
307 | \r |
308 | PsndRerate(Pico.m.frame_count ? 1 : 0);\r |
309 | \r |
310 | frame_samples = PsndLen;\r |
311 | snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r |
312 | if (snd_excess_add != 0)\r |
313 | frame_samples++;\r |
fce20e73 |
314 | \r |
fce20e73 |
315 | printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r |
b188c2b6 |
316 | PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r |
317 | sndout_oss_start(PsndRate, frame_samples * 2, is_stereo);\r |
318 | //sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r |
fce20e73 |
319 | PicoWriteSound = updateSound;\r |
d2f29611 |
320 | plat_update_volume(0, 0);\r |
fce20e73 |
321 | memset(sndBuffer, 0, sizeof(sndBuffer));\r |
322 | PsndOut = sndBuffer;\r |
fce20e73 |
323 | }\r |
324 | }\r |
325 | \r |
93c18cb4 |
326 | void pemu_sound_stop(void)\r |
fce20e73 |
327 | {\r |
b188c2b6 |
328 | sndout_oss_stop();\r |
fce20e73 |
329 | }\r |
330 | \r |
93c18cb4 |
331 | void pemu_sound_wait(void)\r |
fce20e73 |
332 | {\r |
333 | // don't need to do anything, writes will block by themselves\r |
334 | }\r |
492d353a |
335 | \r |
d2f29611 |
336 | void plat_debug_cat(char *str)\r |
492d353a |
337 | {\r |
d2f29611 |
338 | }\r |
492d353a |
339 | \r |
d2f29611 |
340 | void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r |
341 | {\r |
b188c2b6 |
342 | int i;\r |
492d353a |
343 | \r |
d2f29611 |
344 | // clear whole screen in all buffers\r |
b188c2b6 |
345 | for (i = 0; i < fbdev_buffer_count; i++)\r |
346 | memset32(fbdev_buffers[i], 0, g_screen_width * g_screen_height * 2 / 4);\r |
492d353a |
347 | \r |
f6eaae4f |
348 | PicoScanBegin = NULL;\r |
349 | PicoScanEnd = NULL;\r |
350 | \r |
351 | #if 0\r |
b188c2b6 |
352 | if (PicoAHW & PAHW_32X) {\r |
f6eaae4f |
353 | /* FIXME */\r |
b188c2b6 |
354 | DrawLineDest = (unsigned short *)temp_frame;\r |
662e622b |
355 | PicoDrawSetOutFormat(PDF_RGB555, 1);\r |
b188c2b6 |
356 | PicoScanEnd = EmuScanEnd16_32x;\r |
f6eaae4f |
357 | } else\r |
492d353a |
358 | #endif\r |
f6eaae4f |
359 | {\r |
360 | switch (currentConfig.scaling) {\r |
361 | case SCALE_1x1:\r |
362 | PicoDrawSetOutFormat(PDF_RGB555, 1);\r |
363 | PicoScanBegin = emuscan_1x1;\r |
364 | break;\r |
365 | case SCALE_2x2_3x2:\r |
366 | PicoDrawSetOutFormat(PDF_NONE, 0);\r |
367 | PicoScanEnd = is_32cols ? emuscan_3x2_32 : emuscan_2x2_40;\r |
368 | break;\r |
369 | case SCALE_2x2_2x2:\r |
370 | PicoDrawSetOutFormat(PDF_NONE, 0);\r |
371 | PicoScanEnd = is_32cols ? emuscan_2x2_32 : emuscan_2x2_40;\r |
372 | break;\r |
373 | }\r |
374 | }\r |
b188c2b6 |
375 | }\r |
492d353a |
376 | \r |
b188c2b6 |
377 | void pemu_loop_prep(void)\r |
378 | {\r |
f6eaae4f |
379 | if (currentConfig.CPUclock != get_cpu_clock()) {\r |
209a7eff |
380 | char buf[64];\r |
381 | snprintf(buf, sizeof(buf), "sudo /usr/pandora/scripts/op_cpuspeed.sh %d",\r |
382 | currentConfig.CPUclock);\r |
383 | system(buf);\r |
f6eaae4f |
384 | }\r |
385 | \r |
d2f29611 |
386 | pemu_sound_start();\r |
387 | }\r |
492d353a |
388 | \r |
d2f29611 |
389 | void pemu_loop_end(void)\r |
390 | {\r |
391 | int po_old = PicoOpt;\r |
392 | int eo_old = currentConfig.EmuOpt;\r |
492d353a |
393 | \r |
d2f29611 |
394 | pemu_sound_stop();\r |
395 | memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
492d353a |
396 | \r |
d2f29611 |
397 | /* do one more frame for menu bg */\r |
398 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
399 | PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r |
400 | currentConfig.EmuOpt |= EOPT_16BPP;\r |
492d353a |
401 | \r |
662e622b |
402 | PicoDrawSetOutFormat(PDF_RGB555, 1);\r |
d2f29611 |
403 | Pico.m.dirtyPal = 1;\r |
404 | PicoFrame();\r |
492d353a |
405 | \r |
d2f29611 |
406 | PicoOpt = po_old;\r |
407 | currentConfig.EmuOpt = eo_old;\r |
408 | }\r |
492d353a |
409 | \r |
d2f29611 |
410 | void plat_wait_till_us(unsigned int us_to)\r |
411 | {\r |
412 | unsigned int now;\r |
b188c2b6 |
413 | signed int diff;\r |
492d353a |
414 | \r |
d2f29611 |
415 | now = plat_get_ticks_us();\r |
492d353a |
416 | \r |
f6eaae4f |
417 | // XXX: need to check NOHZ\r |
b188c2b6 |
418 | diff = (signed int)(us_to - now);\r |
419 | if (diff > 10000) {\r |
420 | //printf("sleep %d\n", us_to - now);\r |
421 | usleep(diff * 15 / 16);\r |
422 | now = plat_get_ticks_us();\r |
423 | //printf(" wake %d\n", (signed)(us_to - now));\r |
424 | }\r |
425 | /*\r |
426 | while ((signed int)(us_to - now) > 512) {\r |
d2f29611 |
427 | spend_cycles(1024);\r |
428 | now = plat_get_ticks_us();\r |
492d353a |
429 | }\r |
b188c2b6 |
430 | */\r |
492d353a |
431 | }\r |
432 | \r |
d2f29611 |
433 | const char *plat_get_credits(void)\r |
434 | {\r |
0c9ae592 |
435 | return "PicoDrive v" VERSION " (c) notaz, 2006-2010\n\n\n"\r |
d2f29611 |
436 | "Credits:\n"\r |
437 | "fDave: Cyclone 68000 core,\n"\r |
438 | " base code of PicoDrive\n"\r |
439 | "Reesy & FluBBa: DrZ80 core\n"\r |
440 | "MAME devs: YM2612 and SN76496 cores\n"\r |
f6eaae4f |
441 | "Pandora team: Pandora\n"\r |
209a7eff |
442 | "Inder, ketchupgun: graphics\n"\r |
d2f29611 |
443 | "\n"\r |
444 | "special thanks (for docs, ideas):\n"\r |
445 | " Charles MacDonald, Haze,\n"\r |
446 | " Stephane Dallongeville,\n"\r |
447 | " Lordus, Exophase, Rokas,\n"\r |
448 | " Nemesis, Tasco Deluxe";\r |
449 | }\r |