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gfx_cd finished, bugfixes
[picodrive.git] / platform / gp2x / emu.c
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cc68a136 1// (c) Copyright 2006 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 <stdlib.h>\r
8#include <sys/time.h>\r
860c6322 9#include <sys/stat.h>\r
10#include <sys/types.h>\r
cc68a136 11#include <linux/limits.h>\r
12#include <ctype.h>\r
13#include <unistd.h>\r
14\r
15#include <stdarg.h>\r
16\r
17#include "emu.h"\r
18#include "gp2x.h"\r
19#include "usbjoy.h"\r
20#include "menu.h"\r
21#include "asmutils.h"\r
22#include "cpuctrl.h"\r
23\r
b67ef287 24#include <Pico/PicoInt.h>\r
25#include <Pico/Patch.h>\r
26#include <zlib/zlib.h>\r
cc68a136 27\r
28\r
29#ifdef BENCHMARK\r
30#define OSD_FPS_X 220\r
31#else\r
32#define OSD_FPS_X 260\r
33#endif\r
34\r
35// PicoPad[] format: SACB RLDU\r
36char *actionNames[] = {\r
37 "UP", "DOWN", "LEFT", "RIGHT", "B", "C", "A", "START",\r
38 0, 0, 0, 0, 0, 0, 0, 0, // Z, Y, X, MODE (enabled only when needed), ?, ?, ?, ?\r
39 0, 0, 0, 0, 0, 0, 0, "ENTER MENU", // player2_flag, ?, ?, ?, ?, ?, ?, menu\r
40 "NEXT SAVE SLOT", "PREV SAVE SLOT", "SWITCH RENDERER", "SAVE STATE",\r
41 "LOAD STATE", "VOLUME UP", "VOLUME DOWN", "DONE"\r
42};\r
43\r
44int engineState;\r
45int select_exits = 0;\r
46char *PicoConfigFile = "picoconfig.bin";\r
47currentConfig_t currentConfig;\r
48\r
49char romFileName[PATH_MAX];\r
50unsigned char *rom_data = NULL;\r
51\r
52extern int crashed_940;\r
53\r
7a93adeb 54static short sndBuffer[2*44100/50];\r
cc68a136 55static char noticeMsg[64]; // notice msg to draw\r
56static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
00bd648e 57static int osd_fps_x;\r
cc68a136 58static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos\r
59static int gp2x_old_gamma = 100;\r
60static unsigned char *movie_data = NULL;\r
61static int movie_size = 0;\r
cc68a136 62unsigned char *framebuff = 0; // temporary buffer for alt renderer\r
63int state_slot = 0;\r
00bd648e 64int reset_timing = 0;\r
cc68a136 65\r
66/*\r
67// tmp\r
68static FILE *logf = NULL;\r
69\r
70void pprintf(char *texto, ...)\r
71{\r
72 va_list args;\r
73\r
74 va_start(args,texto);\r
75 vfprintf(logf,texto,args);\r
76 va_end(args);\r
77 fflush(logf);\r
78 sync();\r
79}\r
80*/\r
81// utilities\r
82static void strlwr(char* string)\r
83{\r
84 while ( (*string++ = (char)tolower(*string)) );\r
85}\r
86\r
672ad671 87static int try_rfn_cut(void)\r
cc68a136 88{\r
89 FILE *tmp;\r
90 char *p;\r
91\r
672ad671 92 p = romFileName + strlen(romFileName) - 1;\r
93 for (; p > romFileName; p--)\r
94 if (*p == '.') break;\r
95 *p = 0;\r
cc68a136 96\r
97 if((tmp = fopen(romFileName, "rb"))) {\r
98 fclose(tmp);\r
99 return 1;\r
100 }\r
101 return 0;\r
102}\r
103\r
bf098bc5 104static void get_ext(char *file, char *ext)\r
8c1952f0 105{\r
106 char *p;\r
107\r
bf098bc5 108 p = file + strlen(file) - 4;\r
109 if (p < file) p = file;\r
8c1952f0 110 strncpy(ext, p, 4);\r
111 ext[4] = 0;\r
112 strlwr(ext);\r
113}\r
114\r
bf098bc5 115char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
116char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };\r
117char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
118\r
119extern char **g_argv;\r
120\r
121int find_bios(int region, char **bios_file)\r
122{\r
123 static char bios_path[1024];\r
124 int i, j, count;\r
125 char **files;\r
126 FILE *f = NULL;\r
127\r
128 if (region == 4) { // US\r
129 files = biosfiles_us;\r
130 count = sizeof(biosfiles_us) / sizeof(char *);\r
131 } else if (region == 8) { // EU\r
132 files = biosfiles_eu;\r
133 count = sizeof(biosfiles_eu) / sizeof(char *);\r
134 } else if (region == 1 || region == 2) {\r
135 files = biosfiles_jp;\r
136 count = sizeof(biosfiles_jp) / sizeof(char *);\r
137 } else {\r
138 return 0;\r
139 }\r
140\r
141 for (i = 0; i < count; i++)\r
142 {\r
143 strncpy(bios_path, g_argv[0], 1023);\r
144 bios_path[1024-32] = 0;\r
145 for (j = strlen(bios_path); j > 0; j--)\r
146 if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }\r
147 strcat(bios_path, files[i]);\r
148 strcat(bios_path, ".bin");\r
149 f = fopen(bios_path, "rb");\r
150 if (f) break;\r
151\r
152 bios_path[strlen(bios_path) - 4] = 0;\r
153 strcat(bios_path, ".zip");\r
154 f = fopen(bios_path, "rb");\r
155 if (f) break;\r
156 }\r
157\r
158 if (f) {\r
159 printf("using bios: %s\n", bios_path);\r
160 fclose(f);\r
161 if (bios_file) *bios_file = bios_path;\r
162 return 1;\r
163 } else {\r
164 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
165 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
166 printf("%s\n", menuErrorMsg);\r
167 return 0;\r
168 }\r
169}\r
170\r
171/* checks if romFileName points to valid MegaCD image\r
172 * if so, checks for suitable BIOS */\r
83bd0b76 173static int cd_check(char **bios_file)\r
bf098bc5 174{\r
175 unsigned char buf[32];\r
83bd0b76 176 pm_file *cd_f;\r
bf098bc5 177 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
178\r
83bd0b76 179 cd_f = pm_open(romFileName);\r
bf098bc5 180 if (!cd_f) return 0; // let the upper level handle this\r
181\r
83bd0b76 182 if (pm_read(buf, 32, cd_f) != 32) {\r
183 pm_close(cd_f);\r
bf098bc5 184 return 0;\r
185 }\r
186\r
187 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
188 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
189 if (type == 0) {\r
83bd0b76 190 pm_close(cd_f);\r
bf098bc5 191 return 0;\r
192 }\r
193\r
194 /* it seems we have a CD image here. Try to detect region and load a suitable BIOS now.. */\r
83bd0b76 195 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
196 pm_read(buf, 1, cd_f);\r
197 pm_close(cd_f);\r
bf098bc5 198\r
cb0316e4 199 if (buf[0] == 0x64) region = 8; // EU\r
bf098bc5 200 if (buf[0] == 0xa1) region = 1; // JAP\r
201\r
202 printf("detected %s Sega/Mega CD image with %s region\n",\r
203 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
204\r
205 if (PicoRegionOverride) {\r
206 region = PicoRegionOverride;\r
207 printf("overrided region to %s\n", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
208 }\r
209\r
210 if(find_bios(region, bios_file))\r
211 return type; // CD and BIOS detected\r
212\r
213 return -1; // CD detected but load failed\r
214}\r
215\r
cc68a136 216int emu_ReloadRom(void)\r
217{\r
218 unsigned int rom_size = 0;\r
bf098bc5 219 char *used_rom_name = romFileName;\r
8c1952f0 220 char ext[5];\r
83bd0b76 221 pm_file *rom;\r
bf098bc5 222 int ret, cd_state;\r
cc68a136 223\r
224 printf("emu_ReloadRom(%s)\n", romFileName);\r
225\r
bf098bc5 226 get_ext(romFileName, ext);\r
cc68a136 227\r
bf098bc5 228 // detect wrong extensions\r
cc68a136 229 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
230 sprintf(menuErrorMsg, "Not a ROM selected.");\r
231 return 0;\r
232 }\r
233\r
b67ef287 234 PicoPatchUnload();\r
235\r
cc68a136 236 // check for movie file\r
237 if(movie_data) {\r
238 free(movie_data);\r
239 movie_data = 0;\r
240 }\r
241 if(!strcmp(ext, ".gmv")) {\r
242 // check for both gmv and rom\r
243 int dummy;\r
244 FILE *movie_file = fopen(romFileName, "rb");\r
245 if(!movie_file) {\r
246 sprintf(menuErrorMsg, "Failed to open movie.");\r
247 return 0;\r
248 }\r
249 fseek(movie_file, 0, SEEK_END);\r
250 movie_size = ftell(movie_file);\r
251 fseek(movie_file, 0, SEEK_SET);\r
252 if(movie_size < 64+3) {\r
253 sprintf(menuErrorMsg, "Invalid GMV file.");\r
254 fclose(movie_file);\r
255 return 0;\r
256 }\r
257 movie_data = malloc(movie_size);\r
258 if(movie_data == NULL) {\r
259 sprintf(menuErrorMsg, "low memory.");\r
260 fclose(movie_file);\r
261 return 0;\r
262 }\r
263 fread(movie_data, 1, movie_size, movie_file);\r
264 fclose(movie_file);\r
265 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
266 sprintf(menuErrorMsg, "Invalid GMV file.");\r
267 return 0;\r
268 }\r
672ad671 269 dummy = try_rfn_cut() || try_rfn_cut();\r
cc68a136 270 if (!dummy) {\r
271 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
272 return 0;\r
273 }\r
bf098bc5 274 get_ext(romFileName, ext);\r
cc68a136 275 }\r
b67ef287 276 else if (!strcmp(ext, ".pat")) {\r
277 int dummy;\r
278 PicoPatchLoad(romFileName);\r
279 dummy = try_rfn_cut() || try_rfn_cut();\r
280 if (!dummy) {\r
281 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
282 return 0;\r
283 }\r
284 get_ext(romFileName, ext);\r
285 }\r
cc68a136 286\r
bf098bc5 287 // check for MegaCD image\r
83bd0b76 288 cd_state = cd_check(&used_rom_name);\r
bf098bc5 289 if (cd_state > 0) {\r
290 PicoMCD |= 1;\r
291 get_ext(used_rom_name, ext);\r
292 } else if (cd_state == -1) {\r
293 // bios_help() ?\r
294 return 0;\r
295 } else {\r
4f265db7 296 if (PicoMCD & 1) PicoExitMCD();\r
bf098bc5 297 PicoMCD &= ~1;\r
298 }\r
299\r
83bd0b76 300 rom = pm_open(used_rom_name);\r
cc68a136 301 if(!rom) {\r
302 sprintf(menuErrorMsg, "Failed to open rom.");\r
303 return 0;\r
304 }\r
305\r
306 if(rom_data) {\r
307 free(rom_data);\r
308 rom_data = 0;\r
309 rom_size = 0;\r
310 }\r
311\r
83bd0b76 312 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
313 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
314 printf("%s\n", menuErrorMsg);\r
315 pm_close(rom);\r
316 return 0;\r
cc68a136 317 }\r
83bd0b76 318 pm_close(rom);\r
cc68a136 319\r
320 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
321 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
322 ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
323 if (rom_data) free(rom_data);\r
324 rom_data = 0;\r
325 sprintf(menuErrorMsg, "Not a ROM selected.");\r
326 return 0;\r
327 }\r
328\r
bf098bc5 329 // load config for this ROM (do this before insert to get correct region)\r
330 ret = emu_ReadConfig(1);\r
331 if (!ret)\r
332 emu_ReadConfig(0);\r
333\r
cc68a136 334 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
335 if(PicoCartInsert(rom_data, rom_size)) {\r
336 sprintf(menuErrorMsg, "Failed to load ROM.");\r
337 return 0;\r
338 }\r
339\r
bf098bc5 340 Pico.m.frame_count = 0;\r
341\r
342 // insert CD if it was detected\r
343 if (cd_state > 0) {\r
344 ret = Insert_CD(romFileName, cd_state == 2);\r
345 if (ret != 0) {\r
346 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
347 printf("%s\n", menuErrorMsg);\r
348 return 0;\r
349 }\r
350 }\r
cc68a136 351\r
352 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
353 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
354 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
355\r
b67ef287 356 if (PicoPatches) {\r
357 PicoPatchPrepare();\r
358 PicoPatchApply();\r
359 }\r
360\r
cc68a136 361 // additional movie stuff\r
362 if(movie_data) {\r
363 if(movie_data[0x14] == '6')\r
364 PicoOpt |= 0x20; // 6 button pad\r
365 else PicoOpt &= ~0x20;\r
4f672280 366 PicoOpt |= 0x40; // accurate timing\r
cc68a136 367 if(movie_data[0xF] >= 'A') {\r
4f672280 368 if(movie_data[0x16] & 0x80) {\r
369 PicoRegionOverride = 8;\r
370 } else {\r
371 PicoRegionOverride = 4;\r
372 }\r
373 PicoReset(0);\r
cc68a136 374 // TODO: bits 6 & 5\r
375 }\r
4f672280 376 movie_data[0x18+30] = 0;\r
377 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
cc68a136 378 }\r
379 else\r
380 {\r
381 if(Pico.m.pal) {\r
382 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
383 } else {\r
384 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
385 }\r
386 }\r
387 gettimeofday(&noticeMsgTime, 0);\r
4f265db7 388\r
cc68a136 389 // load SRAM for this ROM\r
390 if(currentConfig.EmuOpt & 1)\r
391 emu_SaveLoadGame(1, 1);\r
392\r
cc68a136 393 return 1;\r
394}\r
395\r
396\r
66fdc0f0 397static void emu_msg_cb(const char *msg);\r
398\r
cc68a136 399void emu_Init(void)\r
400{\r
401 // make temp buffer for alt renderer\r
402 framebuff = malloc((8+320)*(8+240+8));\r
403 if (!framebuff)\r
404 {\r
405 printf("framebuff == 0\n");\r
406 }\r
407\r
860c6322 408 // make dirs for saves, cfgs, etc.\r
409 mkdir("mds", 0777);\r
410 mkdir("srm", 0777);\r
411 mkdir("brm", 0777);\r
412 mkdir("cfg", 0777);\r
413\r
cc68a136 414 PicoInit();\r
66fdc0f0 415 PicoMessage = emu_msg_cb;\r
cc68a136 416\r
417// logf = fopen("log.txt", "w");\r
418}\r
419\r
420\r
860c6322 421static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
cc68a136 422{\r
423 char *p;\r
860c6322 424 int prefix_len = 0;\r
cc68a136 425\r
426 // make save filename\r
427 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
860c6322 428 *dst = 0;\r
429 if (prefix) {\r
430 strcpy(dst, prefix);\r
431 prefix_len = strlen(prefix);\r
432 }\r
433 strncpy(dst + prefix_len, p, 511-prefix_len);\r
cc68a136 434 dst[511-8] = 0;\r
860c6322 435 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
436 if (ext) strcat(dst, ext);\r
cc68a136 437}\r
438\r
439\r
440static void find_combos(void)\r
441{\r
442 int act, u;\r
443\r
444 // find out which keys and actions are combos\r
445 combo_keys = combo_acts = 0;\r
446 for (act = 0; act < 32; act++)\r
447 {\r
448 int keyc = 0;\r
449 if (act == 16) continue; // player2 flag\r
450 for (u = 0; u < 32; u++)\r
451 {\r
452 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
453 }\r
454 if (keyc > 1)\r
455 {\r
456 // loop again and mark those keys and actions as combo\r
457 for (u = 0; u < 32; u++)\r
458 {\r
459 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
460 combo_keys |= 1 << u;\r
461 combo_acts |= 1 << act;\r
462 }\r
463 }\r
464 }\r
465 }\r
466 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
467}\r
468\r
469\r
470int emu_ReadConfig(int game)\r
471{\r
472 FILE *f;\r
473 char cfg[512];\r
474 int bread = 0;\r
475\r
476 if (!game)\r
477 {\r
478 // set default config\r
479 memset(&currentConfig, 0, sizeof(currentConfig));\r
480 currentConfig.lastRomFile[0] = 0;\r
4f265db7 481 currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds\r
482 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda\r
1cd356a3 483 currentConfig.PsndRate = 22050; // 44100;\r
cc68a136 484 currentConfig.PicoRegion = 0; // auto\r
51a902ae 485 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
cc68a136 486 currentConfig.Frameskip = -1; // auto\r
487 currentConfig.CPUclock = 200;\r
488 currentConfig.volume = 50;\r
489 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
490 currentConfig.KeyBinds[ 4] = 1<<1;\r
491 currentConfig.KeyBinds[ 2] = 1<<2;\r
492 currentConfig.KeyBinds[ 6] = 1<<3;\r
493 currentConfig.KeyBinds[14] = 1<<4;\r
494 currentConfig.KeyBinds[13] = 1<<5;\r
495 currentConfig.KeyBinds[12] = 1<<6;\r
496 currentConfig.KeyBinds[ 8] = 1<<7;\r
497 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
498 currentConfig.KeyBinds[10] = 1<<27; // save state\r
499 currentConfig.KeyBinds[11] = 1<<28; // load state\r
500 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
501 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
502 currentConfig.gamma = 100;\r
0a051f55 503 currentConfig.PicoCDBuffers = 64;\r
cc68a136 504 strncpy(cfg, PicoConfigFile, 511);\r
505 cfg[511] = 0;\r
506 } else {\r
860c6322 507 romfname_ext(cfg, "cfg/", ".pbcfg");\r
508 f = fopen(cfg, "rb");\r
509 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
510 else fclose(f);\r
cc68a136 511 }\r
512\r
513 printf("emu_ReadConfig: %s ", cfg);\r
514 f = fopen(cfg, "rb");\r
515 if (f) {\r
516 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
517 fclose(f);\r
518 }\r
519 printf((bread == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
520\r
521 PicoOpt = currentConfig.PicoOpt;\r
522 PsndRate = currentConfig.PsndRate;\r
523 PicoRegionOverride = currentConfig.PicoRegion;\r
51a902ae 524 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
0a051f55 525 PicoCDBuffers = currentConfig.PicoCDBuffers;\r
cc68a136 526 if (PicoOpt & 0x20) {\r
527 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";\r
528 actionNames[10] = "X"; actionNames[11] = "MODE";\r
529 }\r
530 // some sanity checks\r
531 if (currentConfig.CPUclock < 1 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
532 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
533 // if volume keys are unbound, bind them to volume control\r
534 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
535 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
536 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
537 }\r
538\r
539 return (bread == sizeof(currentConfig));\r
540}\r
541\r
542\r
543int emu_WriteConfig(int game)\r
544{\r
545 FILE *f;\r
546 char cfg[512];\r
547 int bwrite = 0;\r
548\r
549 if (!game)\r
550 {\r
551 strncpy(cfg, PicoConfigFile, 511);\r
552 cfg[511] = 0;\r
553 } else {\r
7336a99a 554 romfname_ext(cfg, "cfg/", ".pbcfg");\r
cc68a136 555 }\r
556\r
557 printf("emu_WriteConfig: %s ", cfg);\r
558 f = fopen(cfg, "wb");\r
559 if (f) {\r
560 currentConfig.PicoOpt = PicoOpt;\r
561 currentConfig.PsndRate = PsndRate;\r
562 currentConfig.PicoRegion = PicoRegionOverride;\r
51a902ae 563 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
0a051f55 564 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
cc68a136 565 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
566 fflush(f);\r
567 fclose(f);\r
568 sync();\r
569 }\r
570 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
571\r
572 return (bwrite == sizeof(currentConfig));\r
573}\r
574\r
575\r
576void emu_Deinit(void)\r
577{\r
578 // save SRAM\r
579 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
580 emu_SaveLoadGame(0, 1);\r
581 SRam.changed = 0;\r
582 }\r
583\r
584 if (!(currentConfig.EmuOpt & 0x20))\r
585 emu_WriteConfig(0);\r
586 free(framebuff);\r
587\r
588 PicoExit();\r
589// fclose(logf);\r
590\r
591 // restore gamma\r
592 if (gp2x_old_gamma != 100)\r
593 set_gamma(100);\r
594}\r
595\r
596\r
76276b0b 597void osd_text(int x, int y, const char *text)\r
cc68a136 598{\r
599 int len = strlen(text)*8;\r
600\r
601 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
bf098bc5 602 int *p, i, h;\r
cc68a136 603 x &= ~3; // align x\r
604 len = (len+3) >> 2;\r
605 for (h = 0; h < 8; h++) {\r
606 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
bf098bc5 607 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
cc68a136 608 }\r
bf098bc5 609 gp2x_text_out8_2(x, y, text, 0xf0);\r
cc68a136 610 } else {\r
611 int *p, i, h;\r
612 x &= ~1; // align x\r
613 len = (len+1) >> 1;\r
614 for (h = 0; h < 8; h++) {\r
615 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
616 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
617 }\r
618 gp2x_text_out15(x, y, text);\r
619 }\r
620}\r
621\r
bf098bc5 622static void cd_leds(void)\r
623{\r
b837b69b 624 // mmu problems?\r
625// static\r
626 int old_reg;\r
627// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
bf098bc5 628 old_reg = Pico_mcd->s68k_regs[0];\r
629\r
630 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
631 // 8-bit modes\r
632 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
633 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
4f265db7 634 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
635 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
636 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
637 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
638 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
639 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
bf098bc5 640 } else {\r
641 // 16-bit modes\r
4f265db7 642 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
bf098bc5 643 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
644 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
4f265db7 645 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
646 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
647 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
bf098bc5 648 }\r
649}\r
650\r
cc68a136 651static int EmuScan16(unsigned int num, void *sdata)\r
652{\r
653 if (!(Pico.video.reg[1]&8)) num += 8;\r
654 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
655\r
656 return 0;\r
657}\r
658\r
659static int EmuScan8(unsigned int num, void *sdata)\r
660{\r
661 if (!(Pico.video.reg[1]&8)) num += 8;\r
662 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
663\r
664 return 0;\r
665}\r
666\r
e11c5548 667int localPal[0x100];\r
cc68a136 668static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
669\r
76276b0b 670static void blit(const char *fps, const char *notice)\r
cc68a136 671{\r
bf098bc5 672 int emu_opt = currentConfig.EmuOpt;\r
673\r
cc68a136 674 if (PicoOpt&0x10) {\r
675 // 8bit fast renderer\r
676 if (Pico.m.dirtyPal) {\r
677 Pico.m.dirtyPal = 0;\r
678 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
679 // feed new palette to our device\r
680 gp2x_video_setpalette(localPal, 0x40);\r
681 }\r
682 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
bf098bc5 683 } else if (!(emu_opt&0x80)) {\r
cc68a136 684 // 8bit accurate renderer\r
685 if (Pico.m.dirtyPal) {\r
686 Pico.m.dirtyPal = 0;\r
687 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
688 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
689 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
690 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
691 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
bf098bc5 692 localPal[0xc0] = 0x0000c000;\r
693 localPal[0xd0] = 0x00c00000;\r
cc68a136 694 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
695 localPal[0xf0] = 0x00ffffff;\r
696 gp2x_video_setpalette(localPal, 0x100);\r
697 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
698 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
699 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
700 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
701 gp2x_video_setpalette(localPal, 0xc0);\r
702 } else {\r
703 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
704 gp2x_video_setpalette(localPal, 0x40);\r
705 }\r
706 }\r
707 }\r
708\r
709 if (notice) osd_text(4, 232, notice);\r
bf098bc5 710 if (emu_opt & 2)\r
cc68a136 711 osd_text(osd_fps_x, 232, fps);\r
bf098bc5 712 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
713 cd_leds();\r
cc68a136 714\r
715 //gp2x_video_wait_vsync();\r
716 gp2x_video_flip();\r
717\r
718 if (!(PicoOpt&0x10)) {\r
719 if (!(Pico.video.reg[1]&8)) {\r
720 if (currentConfig.EmuOpt&0x80) {\r
721 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
722 } else {\r
723 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
724 }\r
725 } else {\r
726 DrawLineDest = gp2x_screen;\r
727 }\r
728 }\r
729}\r
730\r
731\r
732// clears whole screen or just the notice area (in all buffers)\r
733static void clearArea(int full)\r
734{\r
bf098bc5 735 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
736 // 8-bit renderers\r
737 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
738 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
739 } else {\r
cc68a136 740 // 16bit accurate renderer\r
741 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
742 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
cc68a136 743 }\r
744}\r
745\r
746\r
747static void vidResetMode(void)\r
748{\r
749 if (PicoOpt&0x10) {\r
cc68a136 750 gp2x_video_changemode(8);\r
cc68a136 751 } else if (currentConfig.EmuOpt&0x80) {\r
752 gp2x_video_changemode(15);\r
753 PicoDrawSetColorFormat(1);\r
754 PicoScan = EmuScan16;\r
755 PicoScan(0, 0);\r
756 } else {\r
bf098bc5 757 gp2x_video_changemode(8);\r
758 PicoDrawSetColorFormat(2);\r
759 PicoScan = EmuScan8;\r
760 PicoScan(0, 0);\r
761 }\r
762 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
763 // setup pal for 8-bit modes\r
764 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
765 localPal[0xd0] = 0x00c00000;\r
cc68a136 766 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
767 localPal[0xf0] = 0x00ffffff;\r
cc68a136 768 gp2x_video_setpalette(localPal, 0x100);\r
769 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
770 gp2x_video_flip();\r
cc68a136 771 }\r
772 Pico.m.dirtyPal = 1;\r
773 // reset scaling\r
774 gp2x_video_RGB_setscaling((PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
775}\r
776\r
777\r
66fdc0f0 778static void emu_msg_cb(const char *msg)\r
779{\r
780 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
781 // 8-bit renderers\r
782 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
783 osd_text(4, 232, msg);\r
784 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
785 } else {\r
786 // 16bit accurate renderer\r
787 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
788 osd_text(4, 232, msg);\r
789 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
790 }\r
791 gettimeofday(&noticeMsgTime, 0);\r
792 noticeMsgTime.tv_sec -= 2;\r
793}\r
794\r
fa1e5e29 795static void emu_state_cb(const char *str)\r
796{\r
797 clearArea(0);\r
798 blit("", str);\r
799}\r
800\r
cc68a136 801static void RunEvents(unsigned int which)\r
802{\r
803 if(which & 0x1800) { // save or load (but not both)\r
804 int do_it = 1;\r
860c6322 805 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && emu_check_save_file(state_slot)) {\r
cc68a136 806 unsigned long keys;\r
807 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");\r
808 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
809 usleep(50*1024);\r
810 if (keys & GP2X_X) do_it = 0;\r
811 clearArea(0);\r
812 }\r
813 if (do_it) {\r
76276b0b 814 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
fa1e5e29 815 PicoStateProgressCB = emu_state_cb;\r
816 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
76276b0b 817 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
fa1e5e29 818 PicoStateProgressCB = NULL;\r
cc68a136 819 }\r
820\r
821 reset_timing = 1;\r
822 }\r
823 if(which & 0x0400) { // switch renderer\r
824 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
825 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
826 else currentConfig.EmuOpt &= ~0x80;\r
827\r
828 vidResetMode();\r
829\r
830 if (PicoOpt&0x10) {\r
831 strcpy(noticeMsg, " 8bit fast renderer");\r
832 } else if (currentConfig.EmuOpt&0x80) {\r
833 strcpy(noticeMsg, "16bit accurate renderer");\r
834 } else {\r
835 strcpy(noticeMsg, " 8bit accurate renderer");\r
836 }\r
837\r
838 gettimeofday(&noticeMsgTime, 0);\r
839 }\r
840 if(which & 0x0300) {\r
841 if(which&0x0200) {\r
842 state_slot -= 1;\r
843 if(state_slot < 0) state_slot = 9;\r
844 } else {\r
845 state_slot += 1;\r
846 if(state_slot > 9) state_slot = 0;\r
847 }\r
860c6322 848 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
cc68a136 849 gettimeofday(&noticeMsgTime, 0);\r
850 }\r
851 if(which & 0x0080) {\r
852 engineState = PGS_Menu;\r
853 }\r
854}\r
855\r
856\r
8c1952f0 857static void updateMovie(void)\r
858{\r
859 int offs = Pico.m.frame_count*3 + 0x40;\r
860 if (offs+3 > movie_size) {\r
861 free(movie_data);\r
862 movie_data = 0;\r
863 strcpy(noticeMsg, "END OF MOVIE.");\r
864 printf("END OF MOVIE.\n");\r
865 gettimeofday(&noticeMsgTime, 0);\r
866 } else {\r
867 // MXYZ SACB RLDU\r
868 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
869 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
870 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
871 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
872 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
873 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
874 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
875 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
876 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
877 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
878 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
879 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
880 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
881 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
882 }\r
883}\r
884\r
885\r
cc68a136 886static void updateKeys(void)\r
887{\r
888 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
889 static unsigned long prevEvents = 0;\r
890 int joy, i;\r
891\r
892 keys = gp2x_joystick_read(0);\r
893 if (keys & GP2X_SELECT) {\r
894 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
895 // wait until select is released, so menu would not resume game\r
896 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
897 }\r
898\r
899 keys &= CONFIGURABLE_KEYS;\r
900\r
901 for (i = 0; i < 32; i++)\r
902 {\r
903 if (keys & (1 << i)) {\r
904 int pl, acts = currentConfig.KeyBinds[i];\r
905 if (!acts) continue;\r
906 pl = (acts >> 16) & 1;\r
907 if (combo_keys & (1 << i)) {\r
908 int u = i+1, acts_c = acts & combo_acts;\r
909 // let's try to find the other one\r
910 if (acts_c)\r
911 for (; u < 32; u++)\r
912 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
913 allActions[pl] |= acts_c;\r
914 keys &= ~((1 << i) | (1 << u));\r
915 break;\r
916 }\r
917 // add non-combo actions if combo ones were not found\r
918 if (!acts_c || u == 32)\r
919 allActions[pl] |= acts & ~combo_acts;\r
920 } else {\r
921 allActions[pl] |= acts;\r
922 }\r
923 }\r
924 }\r
925\r
926 // add joy inputs\r
927 if (num_of_joys > 0)\r
928 {\r
929 gp2x_usbjoy_update();\r
930 for (joy = 0; joy < num_of_joys; joy++) {\r
931 int keys = gp2x_usbjoy_check2(joy);\r
932 for (i = 0; i < 32; i++) {\r
933 if (keys & (1 << i)) {\r
934 int acts = currentConfig.JoyBinds[joy][i];\r
935 int pl = (acts >> 16) & 1;\r
936 allActions[pl] |= acts;\r
937 }\r
938 }\r
939 }\r
940 }\r
941\r
8c1952f0 942 PicoPad[0] = (unsigned short) allActions[0];\r
943 PicoPad[1] = (unsigned short) allActions[1];\r
cc68a136 944\r
945 events = (allActions[0] | allActions[1]) >> 16;\r
946\r
947 // volume is treated in special way and triggered every frame\r
948 if(events & 0x6000) {\r
949 int vol = currentConfig.volume;\r
950 if (events & 0x2000) {\r
951 if (vol < 90) vol++;\r
952 } else {\r
953 if (vol > 0) vol--;\r
954 }\r
955 gp2x_sound_volume(vol, vol);\r
956 sprintf(noticeMsg, "VOL: %02i", vol);\r
957 gettimeofday(&noticeMsgTime, 0);\r
958 currentConfig.volume = vol;\r
959 }\r
960\r
961 events &= ~prevEvents;\r
962 if (events) RunEvents(events);\r
8c1952f0 963 if (movie_data) updateMovie();\r
cc68a136 964\r
965 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
966}\r
967\r
cc68a136 968\r
7a93adeb 969static void updateSound(int len)\r
cc68a136 970{\r
7a93adeb 971 if (PicoOpt&8) len<<=1;\r
cc68a136 972\r
01bc6b19 973 /* avoid writing audio when lagging behind to prevent audio lag */\r
974 if (PicoSkipFrame != 2)\r
975 gp2x_sound_write(PsndOut, len<<1);\r
cc68a136 976}\r
977\r
978\r
01bc6b19 979static void SkipFrame(int do_audio)\r
cc68a136 980{\r
01bc6b19 981 PicoSkipFrame=do_audio ? 1 : 2;\r
cc68a136 982 PicoFrame();\r
983 PicoSkipFrame=0;\r
cc68a136 984}\r
985\r
986\r
860c6322 987void emu_forced_frame(void)\r
988{\r
989 int po_old = PicoOpt;\r
990\r
991 PicoOpt |= 0x10;\r
992 PicoFrameFull();\r
860c6322 993\r
994 if (!(Pico.video.reg[12]&1)) {\r
68cba51e 995 vidCpyM2 = vidCpyM2_32col;\r
860c6322 996 clearArea(1);\r
68cba51e 997 } else vidCpyM2 = vidCpyM2_40col;\r
860c6322 998\r
999 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
1000 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
1001 gp2x_video_setpalette(localPal, 0x40);\r
48e8482f 1002\r
1003 PicoOpt = po_old;\r
860c6322 1004}\r
1005\r
cc68a136 1006static void simpleWait(int thissec, int lim_time)\r
1007{\r
1008 struct timeval tval;\r
1009\r
1010 spend_cycles(1024);\r
1011 gettimeofday(&tval, 0);\r
1012 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1013\r
1014 while(tval.tv_usec < lim_time)\r
1015 {\r
1016 spend_cycles(1024);\r
1017 gettimeofday(&tval, 0);\r
1018 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1019 }\r
1020}\r
1021\r
1022\r
1023void emu_Loop(void)\r
1024{\r
1025 static int gp2x_old_clock = 200;\r
1026 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
1027 char fpsbuff[24]; // fps count c string\r
1028 struct timeval tval; // timing\r
1029 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
1030 int target_fps, target_frametime, lim_time, i;\r
1031 char *notice = 0;\r
1032\r
1033 printf("entered emu_Loop()\n");\r
1034\r
1035 if (gp2x_old_clock != currentConfig.CPUclock) {\r
1036 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
1037 set_FCLK(currentConfig.CPUclock);\r
1038 gp2x_old_clock = currentConfig.CPUclock;\r
1039 printf(" done\n");\r
1040 }\r
1041\r
1042 if (gp2x_old_gamma != currentConfig.gamma) {\r
1043 set_gamma(currentConfig.gamma);\r
1044 gp2x_old_gamma = currentConfig.gamma;\r
1045 printf("updated gamma to %i\n", currentConfig.gamma);\r
1046 }\r
1047\r
1048 fpsbuff[0] = 0;\r
1049\r
1050 // make sure we are in correct mode\r
1051 vidResetMode();\r
e11c5548 1052 Pico.m.dirtyPal = 1;\r
cc68a136 1053 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
1054 find_combos();\r
1055\r
1056 // pal/ntsc might have changed, reset related stuff\r
1057 target_fps = Pico.m.pal ? 50 : 60;\r
1058 target_frametime = 1000000/target_fps;\r
1059 reset_timing = 1;\r
1060\r
1061 // prepare sound stuff\r
1062 if(currentConfig.EmuOpt & 4) {\r
7a93adeb 1063 int snd_excess_add;\r
cc68a136 1064 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
1065 /* if 940 is turned off, we need it to be put back to sleep */\r
1066 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
b837b69b 1067 Reset940(1, 2);\r
cc68a136 1068 Pause940(1);\r
1069 }\r
7a93adeb 1070 sound_rerate(1);\r
cc68a136 1071 }\r
1072 //excess_samples = PsndRate - PsndLen*target_fps;\r
cc68a136 1073 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1074 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n", PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
1075 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
1076 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
1077 PicoWriteSound = updateSound;\r
7a93adeb 1078 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1079 PsndOut = sndBuffer;\r
cc68a136 1080 PsndRate_old = PsndRate;\r
1081 PsndLen_real = PsndLen;\r
1082 PicoOpt_old = PicoOpt;\r
1083 pal_old = Pico.m.pal;\r
1084 } else {\r
1085 PsndOut = 0;\r
1086 }\r
1087\r
0a051f55 1088 // prepare CD buffer\r
1089 if (PicoMCD & 1) PicoCDBufferInit();\r
1090\r
cc68a136 1091 // loop?\r
1092 while (engineState == PGS_Running)\r
1093 {\r
1094 int modes;\r
1095\r
1096 gettimeofday(&tval, 0);\r
1097 if(reset_timing) {\r
1098 reset_timing = 0;\r
1099 thissec = tval.tv_sec;\r
1100 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
1101 }\r
1102\r
1103 // show notice message?\r
1104 if(noticeMsgTime.tv_sec) {\r
1105 static int noticeMsgSum;\r
1106 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
1107 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
1108 clearArea(0);\r
1109 notice = 0;\r
1110 } else {\r
1111 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
1112 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
1113 notice = noticeMsg;\r
1114 }\r
1115 }\r
1116\r
1117 // check for mode changes\r
1118 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
1119 if (modes != oldmodes) {\r
1120 int scalex = 320;\r
1121 osd_fps_x = OSD_FPS_X;\r
1122 if (modes & 4) {\r
1123 vidCpyM2 = vidCpyM2_40col;\r
1124 } else {\r
1125 if (PicoOpt & 0x100) {\r
1126 vidCpyM2 = vidCpyM2_32col_nobord;\r
1127 scalex = 256;\r
1128 osd_fps_x = OSD_FPS_X - 64;\r
1129 } else {\r
1130 vidCpyM2 = vidCpyM2_32col;\r
1131 }\r
1132 }\r
1133 gp2x_video_RGB_setscaling(scalex, 240);\r
1134 oldmodes = modes;\r
1135 clearArea(1);\r
1136 }\r
1137\r
1138 // second changed?\r
1139 if(thissec != tval.tv_sec) {\r
1140#ifdef BENCHMARK\r
1141 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1142 if(++bench == 10) {\r
1143 bench = 0;\r
1144 bench_fps_s = bench_fps;\r
1145 bf[bfp++ & 3] = bench_fps;\r
1146 bench_fps = 0;\r
1147 }\r
1148 bench_fps += frames_shown;\r
1149 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1150#else\r
1151 if(currentConfig.EmuOpt & 2)\r
1152 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1153#endif\r
1154 thissec = tval.tv_sec;\r
1155\r
1156 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
1157 frames_done = frames_shown = 0;\r
1158 } else {\r
1159 // it is quite common for this implementation to leave 1 fame unfinished\r
1160 // when second changes, but we don't want buffer to starve.\r
1161 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
1162 updateKeys();\r
01bc6b19 1163 SkipFrame(1); frames_done++;\r
cc68a136 1164 }\r
1165\r
1166 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
1167 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
1168 if (frames_shown > frames_done) frames_shown = frames_done;\r
1169 }\r
1170 }\r
1171\r
1172 lim_time = (frames_done+1) * target_frametime;\r
1173 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
1174 for(i = 0; i < currentConfig.Frameskip; i++) {\r
1175 updateKeys();\r
01bc6b19 1176 SkipFrame(1); frames_done++;\r
cc68a136 1177 if (PsndOut) { // do framelimitting if sound is enabled\r
1178 gettimeofday(&tval, 0);\r
1179 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1180 if(tval.tv_usec < lim_time) { // we are too fast\r
1181 simpleWait(thissec, lim_time);\r
1182 }\r
1183 }\r
1184 lim_time += target_frametime;\r
1185 }\r
1186 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
1187 // no time left for this frame - skip\r
4ff2d527 1188 if (tval.tv_usec - lim_time >= 0x300000) {\r
1189 /* something caused a slowdown for us (disk access? cache flush?)\r
1190 * try to recover by resetting timing... */\r
1191 reset_timing = 1;\r
1192 continue;\r
1193 }\r
cc68a136 1194 updateKeys();\r
00bd648e 1195 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
cc68a136 1196 continue;\r
1197 }\r
1198\r
1199 updateKeys();\r
1200 PicoFrame();\r
1201\r
312e9ce1 1202#if 0\r
1203if (Pico.m.frame_count == 31563) {\r
1204 FILE *f;\r
1205 f = fopen("ram_p.bin", "wb");\r
1206 if (!f) { printf("!f\n"); exit(1); }\r
1207 fwrite(Pico.ram, 1, 0x10000, f);\r
1208 fclose(f);\r
1209 exit(0);\r
1210}\r
1211#endif\r
4f672280 1212#if 0\r
1213 // debug\r
1214 {\r
312e9ce1 1215 #define BYTE unsigned char\r
1216 #define WORD unsigned short\r
1217 struct\r
1218 {\r
1219 BYTE IDLength; /* 00h Size of Image ID field */\r
1220 BYTE ColorMapType; /* 01h Color map type */\r
1221 BYTE ImageType; /* 02h Image type code */\r
1222 WORD CMapStart; /* 03h Color map origin */\r
1223 WORD CMapLength; /* 05h Color map length */\r
1224 BYTE CMapDepth; /* 07h Depth of color map entries */\r
1225 WORD XOffset; /* 08h X origin of image */\r
1226 WORD YOffset; /* 0Ah Y origin of image */\r
1227 WORD Width; /* 0Ch Width of image */\r
1228 WORD Height; /* 0Eh Height of image */\r
1229 BYTE PixelDepth; /* 10h Image pixel size */\r
1230 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
1231 } __attribute__((packed)) TGAHEAD;\r
1232 static unsigned short oldscr[320*240];\r
4f672280 1233 FILE *f; char name[128]; int i;\r
312e9ce1 1234\r
1235 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
1236 TGAHEAD.ImageType = 2;\r
1237 TGAHEAD.Width = 320;\r
1238 TGAHEAD.Height = 240;\r
1239 TGAHEAD.PixelDepth = 16;\r
1240 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
1241\r
1242 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
1243\r
1244 for (i = 0; i < 320*240; i++)\r
1245 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
1246 if (i < 320*240)\r
4f672280 1247 {\r
312e9ce1 1248 for (i = 0; i < 320*240; i++)\r
1249 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
1250 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
4f672280 1251 f = fopen(name, "wb");\r
1252 if (!f) { printf("!f\n"); exit(1); }\r
312e9ce1 1253 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
1254 fwrite(oldscr, 1, 320*240*2, f);\r
4f672280 1255 fclose(f);\r
1256 }\r
1257 }\r
1258#endif\r
1259\r
cc68a136 1260 // check time\r
1261 gettimeofday(&tval, 0);\r
4ff2d527 1262 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
cc68a136 1263\r
4ff2d527 1264 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 0x300000) // slowdown detection\r
1265 reset_timing = 1;\r
1266 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
cc68a136 1267 {\r
4ff2d527 1268 // sleep if we are still too fast\r
cc68a136 1269 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
cc68a136 1270 if(tval.tv_usec < lim_time)\r
1271 {\r
1272 // we are too fast\r
1273 simpleWait(thissec, lim_time);\r
1274 }\r
1275 }\r
1276\r
1277 blit(fpsbuff, notice);\r
1278\r
1279 frames_done++; frames_shown++;\r
1280 }\r
1281\r
0a051f55 1282\r
1283 if (PicoMCD & 1) PicoCDBufferFree();\r
1284\r
cc68a136 1285 // save SRAM\r
1286 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
76276b0b 1287 osd_text(4, 232, "Writing SRAM/BRAM..");\r
cc68a136 1288 emu_SaveLoadGame(0, 1);\r
1289 SRam.changed = 0;\r
1290 }\r
e11c5548 1291\r
1292 // if in 16bit mode, generate 8it image for menu background\r
860c6322 1293 if (!(PicoOpt&0x10) && (currentConfig.EmuOpt&0x80))\r
1294 emu_forced_frame();\r
76276b0b 1295\r
1296 // for menu bg\r
860c6322 1297 gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);\r
cc68a136 1298}\r
1299\r
1300\r
1301void emu_ResetGame(void)\r
1302{\r
1303 PicoReset(0);\r
1304 reset_timing = 1;\r
1305}\r
1306\r
1307\r
1308size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1309{\r
1310 return gzread(file, p, _n);\r
1311}\r
1312\r
1313\r
1314size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1315{\r
1316 return gzwrite(file, p, _n);\r
1317}\r
1318\r
860c6322 1319static int try_ropen_file(const char *fname)\r
1320{\r
1321 FILE *f;\r
1322\r
1323 f = fopen(fname, "rb");\r
1324 if (f) {\r
1325 fclose(f);\r
1326 return 1;\r
1327 }\r
1328 return 0;\r
1329}\r
1330\r
1331char *emu_GetSaveFName(int load, int is_sram, int slot)\r
1332{\r
1333 static char saveFname[512];\r
1334 char ext[16];\r
1335\r
1336 if (is_sram)\r
1337 {\r
1338 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
1339 if (load) {\r
1340 if (try_ropen_file(saveFname)) return saveFname;\r
1341 // try in current dir..\r
1342 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
1343 if (try_ropen_file(saveFname)) return saveFname;\r
1344 return NULL; // give up\r
1345 }\r
1346 }\r
1347 else\r
1348 {\r
1349 ext[0] = 0;\r
1350 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1351 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
1352\r
1353 romfname_ext(saveFname, "mds/", ext);\r
1354 if (load) {\r
1355 if (try_ropen_file(saveFname)) return saveFname;\r
1356 romfname_ext(saveFname, NULL, ext);\r
1357 if (try_ropen_file(saveFname)) return saveFname;\r
1358 if (currentConfig.EmuOpt & 8) {\r
1359 ext[0] = 0;\r
1360 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1361 strcat(ext, ".mds");\r
1362\r
1363 romfname_ext(saveFname, "mds/", ext);\r
1364 if (try_ropen_file(saveFname)) return saveFname;\r
1365 romfname_ext(saveFname, NULL, ext);\r
1366 if (try_ropen_file(saveFname)) return saveFname;\r
1367 }\r
1368 return NULL;\r
1369 }\r
1370 }\r
1371\r
1372 return saveFname;\r
1373}\r
1374\r
1375int emu_check_save_file(int slot)\r
1376{\r
1377 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
1378}\r
1379\r
1380void emu_set_save_cbs(int gz)\r
1381{\r
1382 if (gz) {\r
1383 areaRead = gzRead2;\r
1384 areaWrite = gzWrite2;\r
1385 areaEof = (areaeof *) gzeof;\r
1386 areaSeek = (areaseek *) gzseek;\r
1387 areaClose = (areaclose *) gzclose;\r
1388 } else {\r
1389 areaRead = (arearw *) fread;\r
1390 areaWrite = (arearw *) fwrite;\r
1391 areaEof = (areaeof *) feof;\r
1392 areaSeek = (areaseek *) fseek;\r
1393 areaClose = (areaclose *) fclose;\r
1394 }\r
1395}\r
cc68a136 1396\r
1397int emu_SaveLoadGame(int load, int sram)\r
1398{\r
1399 int ret = 0;\r
860c6322 1400 char *saveFname;\r
cc68a136 1401\r
1402 // make save filename\r
860c6322 1403 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
1404 if (saveFname == NULL) {\r
68cba51e 1405 if (!sram) {\r
1406 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
1407 gettimeofday(&noticeMsgTime, 0);\r
1408 }\r
860c6322 1409 return -1;\r
cc68a136 1410 }\r
1411\r
1412 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1413\r
1414 if(sram) {\r
1415 FILE *sramFile;\r
ab0607f7 1416 int sram_size;\r
1417 unsigned char *sram_data;\r
1418 if (PicoMCD&1) {\r
1419 sram_size = 0x2000;\r
1420 sram_data = Pico_mcd->bram;\r
1421 } else {\r
1422 sram_size = SRam.end-SRam.start+1;\r
1423 if(SRam.reg_back & 4) sram_size=0x2000;\r
1424 sram_data = SRam.data;\r
1425 }\r
1426 if(!sram_data) return 0; // SRam forcefully disabled for this game\r
1427\r
cc68a136 1428 if(load) {\r
1429 sramFile = fopen(saveFname, "rb");\r
1430 if(!sramFile) return -1;\r
ab0607f7 1431 fread(sram_data, 1, sram_size, sramFile);\r
cc68a136 1432 fclose(sramFile);\r
1433 } else {\r
1434 // sram save needs some special processing\r
1435 // see if we have anything to save\r
1436 for(; sram_size > 0; sram_size--)\r
ab0607f7 1437 if(sram_data[sram_size-1]) break;\r
cc68a136 1438\r
1439 if(sram_size) {\r
1440 sramFile = fopen(saveFname, "wb");\r
ab0607f7 1441 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
cc68a136 1442 ret = (ret != sram_size) ? -1 : 0;\r
1443 fclose(sramFile);\r
1444 sync();\r
1445 }\r
1446 }\r
1447 return ret;\r
ab0607f7 1448 }\r
1449 else\r
1450 {\r
cc68a136 1451 void *PmovFile = NULL;\r
860c6322 1452 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
cc68a136 1453 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
860c6322 1454 emu_set_save_cbs(1);\r
cc68a136 1455 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
860c6322 1456 }\r
cc68a136 1457 }\r
860c6322 1458 else\r
1459 {\r
cc68a136 1460 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
860c6322 1461 emu_set_save_cbs(0);\r
cc68a136 1462 }\r
1463 }\r
1464 if(PmovFile) {\r
75736070 1465 ret = PmovState(load ? 6 : 5, PmovFile);\r
860c6322 1466 areaClose(PmovFile);\r
cc68a136 1467 PmovFile = 0;\r
1468 if (!load) sync();\r
1469 else Pico.m.dirtyPal=1;\r
75736070 1470 }\r
1471 else ret = -1;\r
1472 if (!ret)\r
1473 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
1474 else\r
1475 {\r
cc68a136 1476 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
1477 ret = -1;\r
1478 }\r
1479\r
1480 gettimeofday(&noticeMsgTime, 0);\r
1481 return ret;\r
1482 }\r
1483}\r
fast MegaDrive/MegaCD/32X emulator