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 |
492d353a |
7 | \r |
492d353a |
8 | #include "../common/emu.h"\r |
7fd581f4 |
9 | #include "../common/menu.h"\r |
d2f29611 |
10 | #include "../common/plat.h"\r |
11 | #include "../common/arm_utils.h"\r |
b3972d82 |
12 | #include "../linux/sndout_oss.h"\r |
de9b1274 |
13 | #include "asm_utils.h"\r |
d2f29611 |
14 | #include "version.h"\r |
492d353a |
15 | \r |
f11bad75 |
16 | #include <pico/pico_int.h>\r |
492d353a |
17 | \r |
d2f29611 |
18 | #define USE_320_SCREEN 1\r |
492d353a |
19 | \r |
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 |
492d353a |
24 | static int osd_fps_x;\r |
d2f29611 |
25 | char cpu_clk_name[] = "unused";\r |
492d353a |
26 | \r |
492d353a |
27 | \r |
93c18cb4 |
28 | void pemu_prep_defconfig(void)\r |
492d353a |
29 | {\r |
d2f29611 |
30 | // XXX: move elsewhere\r |
31 | g_menubg_ptr = temp_frame;\r |
492d353a |
32 | }\r |
33 | \r |
d2f29611 |
34 | void pemu_validate_config(void)\r |
492d353a |
35 | {\r |
492d353a |
36 | }\r |
37 | \r |
d2f29611 |
38 | // FIXME: cleanup\r |
046c4540 |
39 | static void osd_text(int x, int y, const char *text)\r |
492d353a |
40 | {\r |
41 | int len = strlen(text)*8;\r |
42 | \r |
43 | if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r |
44 | int *p, i, h;\r |
45 | x &= ~3; // align x\r |
46 | len = (len+3) >> 2;\r |
47 | for (h = 0; h < 8; h++) {\r |
7fd581f4 |
48 | p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h));\r |
492d353a |
49 | for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r |
50 | }\r |
b7911801 |
51 | emu_text_out8(x, y, text);\r |
492d353a |
52 | } else {\r |
53 | int *p, i, h;\r |
54 | x &= ~1; // align x\r |
55 | len++;\r |
56 | for (h = 0; h < 16; h++) {\r |
7fd581f4 |
57 | p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h));\r |
de9b1274 |
58 | for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r |
492d353a |
59 | }\r |
b7911801 |
60 | text_out16(x, y, text);\r |
492d353a |
61 | }\r |
62 | }\r |
63 | \r |
64 | static void draw_cd_leds(void)\r |
65 | {\r |
66 | // static\r |
67 | int old_reg;\r |
68 | // if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r |
69 | old_reg = Pico_mcd->s68k_regs[0];\r |
70 | \r |
71 | if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r |
72 | // 8-bit modes\r |
73 | unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r |
74 | unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r |
7fd581f4 |
75 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r |
76 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r |
77 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r |
78 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r |
79 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r |
80 | *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r |
492d353a |
81 | } else {\r |
82 | // 16-bit modes\r |
7fd581f4 |
83 | unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r |
492d353a |
84 | unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r |
85 | unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r |
e31266dd |
86 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r |
87 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r |
492d353a |
88 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r |
89 | }\r |
90 | }\r |
91 | \r |
de9b1274 |
92 | #ifdef USE_320_SCREEN\r |
93 | \r |
94 | static int EmuScanBegin16(unsigned int num)\r |
95 | {\r |
7fd581f4 |
96 | DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2;\r |
de9b1274 |
97 | //int w = (Pico.video.reg[12]&1) ? 320 : 256;\r |
7fd581f4 |
98 | //DrawLineDest = (unsigned short *)g_screen_ptr + num*w;\r |
de9b1274 |
99 | \r |
100 | return 0;\r |
101 | }\r |
102 | \r |
103 | #else // USE_320_SCREEN\r |
104 | \r |
492d353a |
105 | static int EmuScanEnd16(unsigned int num)\r |
106 | {\r |
107 | unsigned char *ps=HighCol+8;\r |
108 | unsigned short *pd;\r |
109 | unsigned short *pal=HighPal;\r |
110 | int sh = Pico.video.reg[0xC]&8;\r |
111 | int len, mask = 0xff;\r |
112 | \r |
7fd581f4 |
113 | pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2;\r |
492d353a |
114 | \r |
115 | if (Pico.m.dirtyPal)\r |
116 | PicoDoHighPal555(sh);\r |
117 | \r |
118 | if (Pico.video.reg[12]&1) {\r |
119 | len = 320;\r |
120 | } else {\r |
de9b1274 |
121 | pd += 32*2;\r |
492d353a |
122 | len = 256;\r |
123 | }\r |
124 | \r |
f11bad75 |
125 | if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r |
126 | mask=0x3f; // messed sprites, upper bits are priority stuff\r |
492d353a |
127 | \r |
de9b1274 |
128 | #if 1\r |
129 | clut_line(pd, ps, pal, (mask<<16) | len);\r |
130 | #else\r |
492d353a |
131 | for (; len > 0; len--)\r |
132 | {\r |
133 | unsigned int p = pal[*ps++ & mask];\r |
134 | p |= p << 16;\r |
135 | *(unsigned int *)pd = p;\r |
136 | *(unsigned int *)(&pd[800]) = p;\r |
137 | pd += 2;\r |
138 | }\r |
de9b1274 |
139 | #endif\r |
492d353a |
140 | \r |
141 | return 0;\r |
142 | }\r |
143 | \r |
de9b1274 |
144 | #endif // USE_320_SCREEN\r |
145 | \r |
d2f29611 |
146 | void pemu_update_display(const char *fps, const char *notice)\r |
492d353a |
147 | {\r |
d2f29611 |
148 | if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r |
149 | if (notice)\r |
150 | osd_text(4, 460, notice);\r |
151 | if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r |
152 | osd_text(osd_fps_x, 460, fps);\r |
492d353a |
153 | }\r |
d2f29611 |
154 | if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r |
492d353a |
155 | draw_cd_leds();\r |
d2f29611 |
156 | }\r |
492d353a |
157 | \r |
d2f29611 |
158 | void plat_video_toggle_renderer(int is_next, int force_16bpp, int is_menu)\r |
159 | {\r |
160 | // this will auto-select SMS/32X renderers\r |
161 | PicoDrawSetColorFormat(1);\r |
492d353a |
162 | }\r |
163 | \r |
d2f29611 |
164 | void plat_video_menu_enter(int is_rom_loaded)\r |
165 | {\r |
166 | }\r |
492d353a |
167 | \r |
d2f29611 |
168 | void plat_video_menu_begin(void)\r |
492d353a |
169 | {\r |
d2f29611 |
170 | memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4);\r |
492d353a |
171 | }\r |
172 | \r |
d2f29611 |
173 | void plat_video_menu_end(void)\r |
174 | {\r |
175 | }\r |
492d353a |
176 | \r |
d2f29611 |
177 | void plat_status_msg_clear(void)\r |
492d353a |
178 | {\r |
d2f29611 |
179 | unsigned short *d = (unsigned short *)g_screen_ptr + g_screen_width * g_screen_height;\r |
180 | int l = g_screen_width * 8;\r |
181 | memset32((int *)(d - l), 0, l * 2 / 4);\r |
492d353a |
182 | }\r |
183 | \r |
d2f29611 |
184 | void plat_status_msg_busy_next(const char *msg)\r |
185 | {\r |
186 | plat_status_msg_clear();\r |
187 | pemu_update_display("", msg);\r |
188 | emu_status_msg("");\r |
189 | reset_timing = 1;\r |
190 | }\r |
492d353a |
191 | \r |
d2f29611 |
192 | void plat_status_msg_busy_first(const char *msg)\r |
193 | {\r |
194 | // memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
195 | plat_status_msg_busy_next(msg);\r |
196 | }\r |
197 | \r |
198 | void plat_update_volume(int has_changed, int is_up)\r |
492d353a |
199 | {\r |
200 | static int prev_frame = 0, wait_frames = 0;\r |
201 | int vol = currentConfig.volume;\r |
202 | \r |
203 | if (has_changed)\r |
204 | {\r |
d2f29611 |
205 | if (is_up) {\r |
206 | if (vol < 99) vol++;\r |
207 | } else {\r |
208 | if (vol > 0) vol--;\r |
492d353a |
209 | }\r |
d2f29611 |
210 | wait_frames = 0;\r |
211 | sndout_oss_setvol(vol, vol);\r |
212 | currentConfig.volume = vol;\r |
213 | emu_status_msg("VOL: %02i", vol);\r |
492d353a |
214 | prev_frame = Pico.m.frame_count;\r |
215 | }\r |
492d353a |
216 | }\r |
217 | \r |
93c18cb4 |
218 | void pemu_forced_frame(int opts)\r |
492d353a |
219 | {\r |
220 | int po_old = PicoOpt;\r |
221 | int eo_old = currentConfig.EmuOpt;\r |
222 | \r |
223 | PicoOpt &= ~0x10;\r |
224 | PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r |
225 | currentConfig.EmuOpt |= 0x80;\r |
226 | \r |
de9b1274 |
227 | #ifdef USE_320_SCREEN\r |
228 | PicoDrawSetColorFormat(1);\r |
229 | PicoScanBegin = EmuScanBegin16;\r |
230 | #else\r |
492d353a |
231 | PicoDrawSetColorFormat(-1);\r |
232 | PicoScanEnd = EmuScanEnd16;\r |
de9b1274 |
233 | #endif\r |
492d353a |
234 | Pico.m.dirtyPal = 1;\r |
235 | PicoFrameDrawOnly();\r |
236 | \r |
492d353a |
237 | PicoOpt = po_old;\r |
238 | currentConfig.EmuOpt = eo_old;\r |
239 | }\r |
240 | \r |
d2f29611 |
241 | static void updateSound(int len)\r |
492d353a |
242 | {\r |
d2f29611 |
243 | len <<= 1;\r |
244 | if (PicoOpt & POPT_EN_STEREO)\r |
245 | len <<= 1;\r |
492d353a |
246 | \r |
d2f29611 |
247 | if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r |
248 | return;\r |
492d353a |
249 | \r |
d2f29611 |
250 | /* avoid writing audio when lagging behind to prevent audio lag */\r |
251 | if (PicoSkipFrame != 2)\r |
252 | sndout_oss_write(PsndOut, len);\r |
492d353a |
253 | }\r |
254 | \r |
93c18cb4 |
255 | void pemu_sound_start(void)\r |
fce20e73 |
256 | {\r |
257 | static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r |
258 | int target_fps = Pico.m.pal ? 50 : 60;\r |
259 | \r |
260 | PsndOut = NULL;\r |
261 | \r |
262 | if (currentConfig.EmuOpt & 4)\r |
263 | {\r |
264 | int snd_excess_add;\r |
265 | if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)\r |
266 | PsndRerate(Pico.m.frame_count ? 1 : 0);\r |
267 | \r |
268 | snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r |
269 | printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r |
270 | PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r |
271 | sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r |
272 | sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r |
273 | PicoWriteSound = updateSound;\r |
d2f29611 |
274 | plat_update_volume(0, 0);\r |
fce20e73 |
275 | memset(sndBuffer, 0, sizeof(sndBuffer));\r |
276 | PsndOut = sndBuffer;\r |
277 | PsndRate_old = PsndRate;\r |
278 | PicoOpt_old = PicoOpt;\r |
279 | pal_old = Pico.m.pal;\r |
280 | }\r |
281 | }\r |
282 | \r |
93c18cb4 |
283 | void pemu_sound_stop(void)\r |
fce20e73 |
284 | {\r |
285 | }\r |
286 | \r |
93c18cb4 |
287 | void pemu_sound_wait(void)\r |
fce20e73 |
288 | {\r |
289 | // don't need to do anything, writes will block by themselves\r |
290 | }\r |
492d353a |
291 | \r |
d2f29611 |
292 | void plat_debug_cat(char *str)\r |
492d353a |
293 | {\r |
d2f29611 |
294 | }\r |
492d353a |
295 | \r |
d2f29611 |
296 | void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r |
297 | {\r |
298 | osd_fps_x = 260;\r |
492d353a |
299 | \r |
d2f29611 |
300 | // clear whole screen in all buffers\r |
301 | memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
302 | }\r |
492d353a |
303 | \r |
d2f29611 |
304 | void pemu_loop_prep(void)\r |
305 | {\r |
306 | #ifdef USE_320_SCREEN\r |
307 | PicoDrawSetColorFormat(1);\r |
308 | PicoScanBegin = EmuScanBegin16;\r |
492d353a |
309 | #else\r |
d2f29611 |
310 | PicoDrawSetColorFormat(-1);\r |
311 | PicoScanEnd = EmuScanEnd16;\r |
492d353a |
312 | #endif\r |
313 | \r |
d2f29611 |
314 | pemu_sound_start();\r |
315 | }\r |
492d353a |
316 | \r |
d2f29611 |
317 | void pemu_loop_end(void)\r |
318 | {\r |
319 | int po_old = PicoOpt;\r |
320 | int eo_old = currentConfig.EmuOpt;\r |
492d353a |
321 | \r |
d2f29611 |
322 | pemu_sound_stop();\r |
323 | memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
492d353a |
324 | \r |
d2f29611 |
325 | /* do one more frame for menu bg */\r |
326 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
327 | PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r |
328 | currentConfig.EmuOpt |= EOPT_16BPP;\r |
492d353a |
329 | \r |
d2f29611 |
330 | PicoDrawSetColorFormat(1);\r |
331 | Pico.m.dirtyPal = 1;\r |
332 | PicoFrame();\r |
492d353a |
333 | \r |
d2f29611 |
334 | PicoOpt = po_old;\r |
335 | currentConfig.EmuOpt = eo_old;\r |
336 | }\r |
492d353a |
337 | \r |
d2f29611 |
338 | /* XXX: avoid busy wait somehow? */\r |
339 | void plat_wait_till_us(unsigned int us_to)\r |
340 | {\r |
341 | unsigned int now;\r |
492d353a |
342 | \r |
d2f29611 |
343 | spend_cycles(1024);\r |
344 | now = plat_get_ticks_us();\r |
492d353a |
345 | \r |
d2f29611 |
346 | while ((signed int)(us_to - now) > 512)\r |
347 | {\r |
348 | spend_cycles(1024);\r |
349 | now = plat_get_ticks_us();\r |
492d353a |
350 | }\r |
d2f29611 |
351 | }\r |
492d353a |
352 | \r |
d2f29611 |
353 | void plat_video_wait_vsync(void)\r |
354 | {\r |
492d353a |
355 | }\r |
356 | \r |
d2f29611 |
357 | const char *plat_get_credits(void)\r |
358 | {\r |
359 | return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r |
360 | "Credits:\n"\r |
361 | "fDave: Cyclone 68000 core,\n"\r |
362 | " base code of PicoDrive\n"\r |
363 | "Reesy & FluBBa: DrZ80 core\n"\r |
364 | "MAME devs: YM2612 and SN76496 cores\n"\r |
365 | "rlyeh and others: minimal SDK\n"\r |
366 | "Squidge: mmuhack\n"\r |
367 | "Dzz: ARM940 sample\n"\r |
368 | "GnoStiC / Puck2099: USB joy code\n"\r |
369 | "craigix: GP2X hardware\n"\r |
370 | "ketchupgun: skin design\n"\r |
371 | "\n"\r |
372 | "special thanks (for docs, ideas):\n"\r |
373 | " Charles MacDonald, Haze,\n"\r |
374 | " Stephane Dallongeville,\n"\r |
375 | " Lordus, Exophase, Rokas,\n"\r |
376 | " Nemesis, Tasco Deluxe";\r |
377 | }\r |