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sh2 overclock and logging stuff, menu refactoring
[libpicofe.git] / pandora / emu.c
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1// (c) Copyright 2006-2009 notaz, All rights reserved.\r
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
7#include <unistd.h>\r
8\r
9#include "../common/emu.h"\r
10#include "../common/menu.h"\r
11#include "../common/plat.h"\r
12#include "../common/arm_utils.h"\r
13#include "../linux/sndout_oss.h"\r
14#include "../linux/fbdev.h"\r
15#include "asm_utils.h"\r
16#include "version.h"\r
17\r
18#include <pico/pico_int.h>\r
19\r
20//#define USE_320_SCREEN 1\r
21\r
22\r
23static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
24static unsigned char temp_frame[g_screen_width * g_screen_height * 2];\r
25unsigned char *PicoDraw2FB = temp_frame;\r
26const char *renderer_names[] = { NULL };\r
27const char *renderer_names32x[] = { NULL };\r
28char cpu_clk_name[] = "unused";\r
29\r
30\r
31void pemu_prep_defconfig(void)\r
32{\r
33 // XXX: move elsewhere\r
34 g_menubg_ptr = temp_frame;\r
35\r
36 defaultConfig.EmuOpt |= EOPT_VSYNC;\r
37}\r
38\r
39void pemu_validate_config(void)\r
40{\r
41}\r
42\r
43// FIXME: cleanup\r
44static void osd_text(int x, int y, const char *text)\r
45{\r
46 int len = strlen(text)*8;\r
47\r
48 if (0) {\r
49 int *p, i, h;\r
50 x &= ~3; // align x\r
51 len = (len+3) >> 2;\r
52 for (h = 0; h < 8; h++) {\r
53 p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h));\r
54 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
55 }\r
56 emu_text_out8(x, y, text);\r
57 } else {\r
58 int *p, i, h;\r
59 x &= ~1; // align x\r
60 len++;\r
61 for (h = 0; h < 16; h++) {\r
62 p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h));\r
63 for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r
64 }\r
65 text_out16(x, y, text);\r
66 }\r
67}\r
68\r
69static void draw_cd_leds(void)\r
70{\r
71// static\r
72 int old_reg;\r
73// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
74 old_reg = Pico_mcd->s68k_regs[0];\r
75\r
76 if (0) {\r
77 // 8-bit modes\r
78 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
79 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
80 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
81 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
82 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
83 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
84 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
85 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
86 } else {\r
87 // 16-bit modes\r
88 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
89 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
90 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
91 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
92 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
93 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
94 }\r
95}\r
96\r
97#ifdef USE_320_SCREEN\r
98\r
99static int EmuScanBegin16(unsigned int num)\r
100{\r
101 DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2;\r
102 //int w = (Pico.video.reg[12]&1) ? 320 : 256;\r
103 //DrawLineDest = (unsigned short *)g_screen_ptr + num*w;\r
104\r
105 return 0;\r
106}\r
107\r
108#else // USE_320_SCREEN\r
109\r
110static int EmuScanEnd16(unsigned int num)\r
111{\r
112 unsigned char *ps=HighCol+8;\r
113 unsigned short *pd;\r
114 unsigned short *pal=HighPal;\r
115 int sh = Pico.video.reg[0xC]&8;\r
116 int len, mask = 0xff;\r
117\r
118 pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2;\r
119\r
120 if (Pico.m.dirtyPal)\r
121 PicoDoHighPal555(sh);\r
122\r
123 if (Pico.video.reg[12]&1) {\r
124 len = 320;\r
125 } else {\r
126 pd += 32*2;\r
127 len = 256;\r
128 }\r
129\r
130 if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r
131 mask=0x3f; // messed sprites, upper bits are priority stuff\r
132\r
133#if 1\r
134 clut_line(pd, ps, pal, (mask<<16) | len);\r
135#else\r
136 for (; len > 0; len--)\r
137 {\r
138 unsigned int p = pal[*ps++ & mask];\r
139 p |= p << 16;\r
140 *(unsigned int *)pd = p;\r
141 *(unsigned int *)(&pd[800]) = p;\r
142 pd += 2;\r
143 }\r
144#endif\r
145\r
146 return 0;\r
147}\r
148\r
149static int EmuScanEnd16_32x(unsigned int num)\r
150{\r
151 unsigned int *ps;\r
152 unsigned int *pd;\r
153 int len;\r
154\r
155 ps = (unsigned int *)temp_frame;\r
156 pd = (unsigned int *)g_screen_ptr + (num*800*2 + 800/2 - 320*2/2) / 2;\r
157\r
158 for (len = 320/2; len > 0; len--, ps++) {\r
159 unsigned int p, p1;\r
160 p1 = *ps;\r
161 p = p1 << 16;\r
162 p |= p >> 16;\r
163 *pd = pd[800/2] = p;\r
164 pd++;\r
165\r
166 p = p1 >> 16;\r
167 p |= p << 16;\r
168 *pd = pd[800/2] = p;\r
169 pd++;\r
170 }\r
171\r
172 return 0;\r
173}\r
174#endif // USE_320_SCREEN\r
175\r
176void pemu_finalize_frame(const char *fps, const char *notice)\r
177{\r
178 if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r
179 if (notice)\r
180 osd_text(4, 464, notice);\r
181 if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r
182 osd_text(640, 464, fps);\r
183 }\r
184 if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
185 draw_cd_leds();\r
186}\r
187\r
188void plat_video_toggle_renderer(int change, int is_menu)\r
189{\r
190 // this will auto-select SMS/32X renderers\r
191 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
192}\r
193\r
194void plat_video_menu_enter(int is_rom_loaded)\r
195{\r
196}\r
197\r
198void plat_video_menu_begin(void)\r
199{\r
200 memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4);\r
201}\r
202\r
203void plat_video_menu_end(void)\r
204{\r
205 plat_video_flip();\r
206}\r
207\r
208void plat_status_msg_clear(void)\r
209{\r
210 int s = g_screen_width * g_screen_height * 2;\r
211 int l = g_screen_width * 16 * 2;\r
212 int i;\r
213\r
214 for (i = 0; i < fbdev_buffer_count; i++)\r
215 memset32((int *)((char *)fbdev_buffers[i] + s - l), 0, l / 4);\r
216}\r
217\r
218void plat_status_msg_busy_next(const char *msg)\r
219{\r
220 plat_status_msg_clear();\r
221 pemu_finalize_frame("", msg);\r
222 plat_video_flip();\r
223 emu_status_msg("");\r
224 reset_timing = 1;\r
225}\r
226\r
227void plat_status_msg_busy_first(const char *msg)\r
228{\r
229// memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
230 plat_status_msg_busy_next(msg);\r
231}\r
232\r
233void plat_update_volume(int has_changed, int is_up)\r
234{\r
235 static int prev_frame = 0, wait_frames = 0;\r
236 int vol = currentConfig.volume;\r
237\r
238 if (has_changed)\r
239 {\r
240 if (is_up) {\r
241 if (vol < 99) vol++;\r
242 } else {\r
243 if (vol > 0) vol--;\r
244 }\r
245 wait_frames = 0;\r
246 sndout_oss_setvol(vol, vol);\r
247 currentConfig.volume = vol;\r
248 emu_status_msg("VOL: %02i", vol);\r
249 prev_frame = Pico.m.frame_count;\r
250 }\r
251}\r
252\r
253void pemu_forced_frame(int opts)\r
254{\r
255 int po_old = PicoOpt;\r
256\r
257 PicoOpt &= ~0x10;\r
258 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
259\r
260 Pico.m.dirtyPal = 1;\r
261 PicoFrameDrawOnly();\r
262\r
263 PicoOpt = po_old;\r
264}\r
265\r
266static void updateSound(int len)\r
267{\r
268 unsigned int t;\r
269\r
270 len <<= 1;\r
271 if (PicoOpt & POPT_EN_STEREO)\r
272 len <<= 1;\r
273\r
274 // sndout_oss_can_write() not reliable..\r
275 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r
276 return;\r
277\r
278 /* avoid writing audio when lagging behind to prevent audio lag */\r
279 if (PicoSkipFrame == 2)\r
280 return;\r
281\r
282 t = plat_get_ticks_ms();\r
283 sndout_oss_write(PsndOut, len);\r
284 t = plat_get_ticks_ms() - t;\r
285 if (t > 1)\r
286 printf("audio lag %u\n", t);\r
287}\r
288\r
289void pemu_sound_start(void)\r
290{\r
291 int target_fps = Pico.m.pal ? 50 : 60;\r
292\r
293 PsndOut = NULL;\r
294\r
295 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
296 {\r
297 int snd_excess_add, frame_samples;\r
298 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
299\r
300 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
301\r
302 frame_samples = PsndLen;\r
303 snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r
304 if (snd_excess_add != 0)\r
305 frame_samples++;\r
306\r
307 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
308 PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r
309 sndout_oss_start(PsndRate, frame_samples * 2, is_stereo);\r
310 //sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
311 PicoWriteSound = updateSound;\r
312 plat_update_volume(0, 0);\r
313 memset(sndBuffer, 0, sizeof(sndBuffer));\r
314 PsndOut = sndBuffer;\r
315 }\r
316}\r
317\r
318void pemu_sound_stop(void)\r
319{\r
320 sndout_oss_stop();\r
321}\r
322\r
323void pemu_sound_wait(void)\r
324{\r
325 // don't need to do anything, writes will block by themselves\r
326}\r
327\r
328void plat_debug_cat(char *str)\r
329{\r
330}\r
331\r
332void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
333{\r
334 int i;\r
335\r
336 // clear whole screen in all buffers\r
337 for (i = 0; i < fbdev_buffer_count; i++)\r
338 memset32(fbdev_buffers[i], 0, g_screen_width * g_screen_height * 2 / 4);\r
339\r
340#ifdef USE_320_SCREEN\r
341 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
342 PicoScanBegin = EmuScanBegin16;\r
343#else\r
344 if (PicoAHW & PAHW_32X) {\r
345 DrawLineDest = (unsigned short *)temp_frame;\r
346 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
347 PicoScanBegin = NULL;\r
348 PicoScanEnd = EmuScanEnd16_32x;\r
349 } else {\r
350 PicoDrawSetOutFormat(PDF_NONE, 0);\r
351 PicoScanBegin = NULL;\r
352 PicoScanEnd = EmuScanEnd16;\r
353 }\r
354#endif\r
355}\r
356\r
357void pemu_loop_prep(void)\r
358{\r
359 emu_video_mode_change(0, 0, 0);\r
360 pemu_sound_start();\r
361}\r
362\r
363void pemu_loop_end(void)\r
364{\r
365 int po_old = PicoOpt;\r
366 int eo_old = currentConfig.EmuOpt;\r
367\r
368 pemu_sound_stop();\r
369 memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
370\r
371 /* do one more frame for menu bg */\r
372 PicoOpt &= ~POPT_ALT_RENDERER;\r
373 PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r
374 currentConfig.EmuOpt |= EOPT_16BPP;\r
375\r
376 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
377 Pico.m.dirtyPal = 1;\r
378 PicoFrame();\r
379\r
380 PicoOpt = po_old;\r
381 currentConfig.EmuOpt = eo_old;\r
382}\r
383\r
384void plat_wait_till_us(unsigned int us_to)\r
385{\r
386 unsigned int now;\r
387 signed int diff;\r
388\r
389 now = plat_get_ticks_us();\r
390\r
391 // XXX: need to check NOHZ and djw kernel\r
392 diff = (signed int)(us_to - now);\r
393 if (diff > 10000) {\r
394 //printf("sleep %d\n", us_to - now);\r
395 usleep(diff * 15 / 16);\r
396 now = plat_get_ticks_us();\r
397 //printf(" wake %d\n", (signed)(us_to - now));\r
398 }\r
399/*\r
400 while ((signed int)(us_to - now) > 512) {\r
401 spend_cycles(1024);\r
402 now = plat_get_ticks_us();\r
403 }\r
404*/\r
405}\r
406\r
407const char *plat_get_credits(void)\r
408{\r
409 return "PicoDrive v" VERSION " (c) notaz, 2006-2010\n\n\n"\r
410 "Credits:\n"\r
411 "fDave: Cyclone 68000 core,\n"\r
412 " base code of PicoDrive\n"\r
413 "Reesy & FluBBa: DrZ80 core\n"\r
414 "MAME devs: YM2612 and SN76496 cores\n"\r
415 "rlyeh and others: minimal SDK\n"\r
416 "Squidge: mmuhack\n"\r
417 "Dzz: ARM940 sample\n"\r
418 "GnoStiC / Puck2099: USB joy code\n"\r
419 "craigix: GP2X hardware\n"\r
420 "ketchupgun: skin design\n"\r
421 "\n"\r
422 "special thanks (for docs, ideas):\n"\r
423 " Charles MacDonald, Haze,\n"\r
424 " Stephane Dallongeville,\n"\r
425 " Lordus, Exophase, Rokas,\n"\r
426 " Nemesis, Tasco Deluxe";\r
427}\r
PicoDrive's frontend in a lib