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patch/gg support, 1.201 release
[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
57static int reset_timing, osd_fps_x;\r
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
64\r
65/*\r
66// tmp\r
67static FILE *logf = NULL;\r
68\r
69void pprintf(char *texto, ...)\r
70{\r
71 va_list args;\r
72\r
73 va_start(args,texto);\r
74 vfprintf(logf,texto,args);\r
75 va_end(args);\r
76 fflush(logf);\r
77 sync();\r
78}\r
79*/\r
80// utilities\r
81static void strlwr(char* string)\r
82{\r
83 while ( (*string++ = (char)tolower(*string)) );\r
84}\r
85\r
672ad671 86static int try_rfn_cut(void)\r
cc68a136 87{\r
88 FILE *tmp;\r
89 char *p;\r
90\r
672ad671 91 p = romFileName + strlen(romFileName) - 1;\r
92 for (; p > romFileName; p--)\r
93 if (*p == '.') break;\r
94 *p = 0;\r
cc68a136 95\r
96 if((tmp = fopen(romFileName, "rb"))) {\r
97 fclose(tmp);\r
98 return 1;\r
99 }\r
100 return 0;\r
101}\r
102\r
bf098bc5 103static void get_ext(char *file, char *ext)\r
8c1952f0 104{\r
105 char *p;\r
106\r
bf098bc5 107 p = file + strlen(file) - 4;\r
108 if (p < file) p = file;\r
8c1952f0 109 strncpy(ext, p, 4);\r
110 ext[4] = 0;\r
111 strlwr(ext);\r
112}\r
113\r
bf098bc5 114char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
115char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };\r
116char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
117\r
118extern char **g_argv;\r
119\r
120int find_bios(int region, char **bios_file)\r
121{\r
122 static char bios_path[1024];\r
123 int i, j, count;\r
124 char **files;\r
125 FILE *f = NULL;\r
126\r
127 if (region == 4) { // US\r
128 files = biosfiles_us;\r
129 count = sizeof(biosfiles_us) / sizeof(char *);\r
130 } else if (region == 8) { // EU\r
131 files = biosfiles_eu;\r
132 count = sizeof(biosfiles_eu) / sizeof(char *);\r
133 } else if (region == 1 || region == 2) {\r
134 files = biosfiles_jp;\r
135 count = sizeof(biosfiles_jp) / sizeof(char *);\r
136 } else {\r
137 return 0;\r
138 }\r
139\r
140 for (i = 0; i < count; i++)\r
141 {\r
142 strncpy(bios_path, g_argv[0], 1023);\r
143 bios_path[1024-32] = 0;\r
144 for (j = strlen(bios_path); j > 0; j--)\r
145 if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }\r
146 strcat(bios_path, files[i]);\r
147 strcat(bios_path, ".bin");\r
148 f = fopen(bios_path, "rb");\r
149 if (f) break;\r
150\r
151 bios_path[strlen(bios_path) - 4] = 0;\r
152 strcat(bios_path, ".zip");\r
153 f = fopen(bios_path, "rb");\r
154 if (f) break;\r
155 }\r
156\r
157 if (f) {\r
158 printf("using bios: %s\n", bios_path);\r
159 fclose(f);\r
160 if (bios_file) *bios_file = bios_path;\r
161 return 1;\r
162 } else {\r
163 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
164 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
165 printf("%s\n", menuErrorMsg);\r
166 return 0;\r
167 }\r
168}\r
169\r
170/* checks if romFileName points to valid MegaCD image\r
171 * if so, checks for suitable BIOS */\r
172static int cd_check(char *ext, char **bios_file)\r
173{\r
174 unsigned char buf[32];\r
175 FILE *cd_f;\r
176 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
177\r
178 cd_f = fopen(romFileName, "rb");\r
179 if (!cd_f) return 0; // let the upper level handle this\r
180\r
181 if (fread(buf, 1, 32, cd_f) != 32) {\r
182 fclose(cd_f);\r
183 return 0;\r
184 }\r
185\r
186 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
187 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
188 if (type == 0) {\r
189 fclose(cd_f);\r
190 return 0;\r
191 }\r
192\r
193 /* it seems we have a CD image here. Try to detect region and load a suitable BIOS now.. */\r
cb0316e4 194 fseek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
bf098bc5 195 fread(buf, 1, 1, cd_f);\r
196 fclose(cd_f);\r
197\r
cb0316e4 198 if (buf[0] == 0x64) region = 8; // EU\r
bf098bc5 199 if (buf[0] == 0xa1) region = 1; // JAP\r
200\r
201 printf("detected %s Sega/Mega CD image with %s region\n",\r
202 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
203\r
204 if (PicoRegionOverride) {\r
205 region = PicoRegionOverride;\r
206 printf("overrided region to %s\n", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
207 }\r
208\r
209 if(find_bios(region, bios_file))\r
210 return type; // CD and BIOS detected\r
211\r
212 return -1; // CD detected but load failed\r
213}\r
214\r
cc68a136 215int emu_ReloadRom(void)\r
216{\r
217 unsigned int rom_size = 0;\r
bf098bc5 218 char *used_rom_name = romFileName;\r
8c1952f0 219 char ext[5];\r
cc68a136 220 FILE *rom;\r
bf098bc5 221 int ret, cd_state;\r
cc68a136 222\r
223 printf("emu_ReloadRom(%s)\n", romFileName);\r
224\r
bf098bc5 225 get_ext(romFileName, ext);\r
cc68a136 226\r
bf098bc5 227 // detect wrong extensions\r
cc68a136 228 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
229 sprintf(menuErrorMsg, "Not a ROM selected.");\r
230 return 0;\r
231 }\r
232\r
b67ef287 233 PicoPatchUnload();\r
234\r
cc68a136 235 // check for movie file\r
236 if(movie_data) {\r
237 free(movie_data);\r
238 movie_data = 0;\r
239 }\r
240 if(!strcmp(ext, ".gmv")) {\r
241 // check for both gmv and rom\r
242 int dummy;\r
243 FILE *movie_file = fopen(romFileName, "rb");\r
244 if(!movie_file) {\r
245 sprintf(menuErrorMsg, "Failed to open movie.");\r
246 return 0;\r
247 }\r
248 fseek(movie_file, 0, SEEK_END);\r
249 movie_size = ftell(movie_file);\r
250 fseek(movie_file, 0, SEEK_SET);\r
251 if(movie_size < 64+3) {\r
252 sprintf(menuErrorMsg, "Invalid GMV file.");\r
253 fclose(movie_file);\r
254 return 0;\r
255 }\r
256 movie_data = malloc(movie_size);\r
257 if(movie_data == NULL) {\r
258 sprintf(menuErrorMsg, "low memory.");\r
259 fclose(movie_file);\r
260 return 0;\r
261 }\r
262 fread(movie_data, 1, movie_size, movie_file);\r
263 fclose(movie_file);\r
264 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
265 sprintf(menuErrorMsg, "Invalid GMV file.");\r
266 return 0;\r
267 }\r
672ad671 268 dummy = try_rfn_cut() || try_rfn_cut();\r
cc68a136 269 if (!dummy) {\r
270 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
271 return 0;\r
272 }\r
bf098bc5 273 get_ext(romFileName, ext);\r
cc68a136 274 }\r
b67ef287 275 else if (!strcmp(ext, ".pat")) {\r
276 int dummy;\r
277 PicoPatchLoad(romFileName);\r
278 dummy = try_rfn_cut() || try_rfn_cut();\r
279 if (!dummy) {\r
280 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
281 return 0;\r
282 }\r
283 get_ext(romFileName, ext);\r
284 }\r
cc68a136 285\r
bf098bc5 286 // check for MegaCD image\r
287 cd_state = cd_check(ext, &used_rom_name);\r
288 if (cd_state > 0) {\r
289 PicoMCD |= 1;\r
290 get_ext(used_rom_name, ext);\r
291 } else if (cd_state == -1) {\r
292 // bios_help() ?\r
293 return 0;\r
294 } else {\r
4f265db7 295 if (PicoMCD & 1) PicoExitMCD();\r
bf098bc5 296 PicoMCD &= ~1;\r
297 }\r
298\r
299 rom = fopen(used_rom_name, "rb");\r
cc68a136 300 if(!rom) {\r
301 sprintf(menuErrorMsg, "Failed to open rom.");\r
302 return 0;\r
303 }\r
304\r
305 if(rom_data) {\r
306 free(rom_data);\r
307 rom_data = 0;\r
308 rom_size = 0;\r
309 }\r
310\r
311 // zipfile support\r
312 if(!strcasecmp(ext, ".zip")) {\r
313 fclose(rom);\r
bf098bc5 314 ret = CartLoadZip(used_rom_name, &rom_data, &rom_size);\r
cc68a136 315 if(ret) {\r
bf098bc5 316 if (ret == 4) strcpy(menuErrorMsg, "No ROMs found in zip.");\r
cc68a136 317 else sprintf(menuErrorMsg, "Unzip failed with code %i", ret);\r
318 printf("%s\n", menuErrorMsg);\r
319 return 0;\r
320 }\r
321 } else {\r
322 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
323 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
324 printf("%s\n", menuErrorMsg);\r
325 fclose(rom);\r
326 return 0;\r
327 }\r
328 fclose(rom);\r
329 }\r
330\r
331 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
332 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
333 ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
334 if (rom_data) free(rom_data);\r
335 rom_data = 0;\r
336 sprintf(menuErrorMsg, "Not a ROM selected.");\r
337 return 0;\r
338 }\r
339\r
bf098bc5 340 // load config for this ROM (do this before insert to get correct region)\r
341 ret = emu_ReadConfig(1);\r
342 if (!ret)\r
343 emu_ReadConfig(0);\r
344\r
cc68a136 345 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
346 if(PicoCartInsert(rom_data, rom_size)) {\r
347 sprintf(menuErrorMsg, "Failed to load ROM.");\r
348 return 0;\r
349 }\r
350\r
bf098bc5 351 Pico.m.frame_count = 0;\r
352\r
353 // insert CD if it was detected\r
354 if (cd_state > 0) {\r
355 ret = Insert_CD(romFileName, cd_state == 2);\r
356 if (ret != 0) {\r
357 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
358 printf("%s\n", menuErrorMsg);\r
359 return 0;\r
360 }\r
361 }\r
cc68a136 362\r
363 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
364 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
365 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
366\r
b67ef287 367 if (PicoPatches) {\r
368 PicoPatchPrepare();\r
369 PicoPatchApply();\r
370 }\r
371\r
cc68a136 372 // additional movie stuff\r
373 if(movie_data) {\r
374 if(movie_data[0x14] == '6')\r
375 PicoOpt |= 0x20; // 6 button pad\r
376 else PicoOpt &= ~0x20;\r
4f672280 377 PicoOpt |= 0x40; // accurate timing\r
cc68a136 378 if(movie_data[0xF] >= 'A') {\r
4f672280 379 if(movie_data[0x16] & 0x80) {\r
380 PicoRegionOverride = 8;\r
381 } else {\r
382 PicoRegionOverride = 4;\r
383 }\r
384 PicoReset(0);\r
cc68a136 385 // TODO: bits 6 & 5\r
386 }\r
4f672280 387 movie_data[0x18+30] = 0;\r
388 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
cc68a136 389 }\r
390 else\r
391 {\r
392 if(Pico.m.pal) {\r
393 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
394 } else {\r
395 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
396 }\r
397 }\r
398 gettimeofday(&noticeMsgTime, 0);\r
4f265db7 399\r
cc68a136 400 // load SRAM for this ROM\r
401 if(currentConfig.EmuOpt & 1)\r
402 emu_SaveLoadGame(1, 1);\r
403\r
cc68a136 404 return 1;\r
405}\r
406\r
407\r
408void emu_Init(void)\r
409{\r
410 // make temp buffer for alt renderer\r
411 framebuff = malloc((8+320)*(8+240+8));\r
412 if (!framebuff)\r
413 {\r
414 printf("framebuff == 0\n");\r
415 }\r
416\r
860c6322 417 // make dirs for saves, cfgs, etc.\r
418 mkdir("mds", 0777);\r
419 mkdir("srm", 0777);\r
420 mkdir("brm", 0777);\r
421 mkdir("cfg", 0777);\r
422\r
cc68a136 423 PicoInit();\r
424\r
425// logf = fopen("log.txt", "w");\r
426}\r
427\r
428\r
860c6322 429static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
cc68a136 430{\r
431 char *p;\r
860c6322 432 int prefix_len = 0;\r
cc68a136 433\r
434 // make save filename\r
435 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
860c6322 436 *dst = 0;\r
437 if (prefix) {\r
438 strcpy(dst, prefix);\r
439 prefix_len = strlen(prefix);\r
440 }\r
441 strncpy(dst + prefix_len, p, 511-prefix_len);\r
cc68a136 442 dst[511-8] = 0;\r
860c6322 443 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
444 if (ext) strcat(dst, ext);\r
cc68a136 445}\r
446\r
447\r
448static void find_combos(void)\r
449{\r
450 int act, u;\r
451\r
452 // find out which keys and actions are combos\r
453 combo_keys = combo_acts = 0;\r
454 for (act = 0; act < 32; act++)\r
455 {\r
456 int keyc = 0;\r
457 if (act == 16) continue; // player2 flag\r
458 for (u = 0; u < 32; u++)\r
459 {\r
460 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
461 }\r
462 if (keyc > 1)\r
463 {\r
464 // loop again and mark those keys and actions as combo\r
465 for (u = 0; u < 32; u++)\r
466 {\r
467 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
468 combo_keys |= 1 << u;\r
469 combo_acts |= 1 << act;\r
470 }\r
471 }\r
472 }\r
473 }\r
474 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
475}\r
476\r
477\r
478int emu_ReadConfig(int game)\r
479{\r
480 FILE *f;\r
481 char cfg[512];\r
482 int bread = 0;\r
483\r
484 if (!game)\r
485 {\r
486 // set default config\r
487 memset(&currentConfig, 0, sizeof(currentConfig));\r
488 currentConfig.lastRomFile[0] = 0;\r
4f265db7 489 currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds\r
490 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda\r
1cd356a3 491 currentConfig.PsndRate = 22050; // 44100;\r
cc68a136 492 currentConfig.PicoRegion = 0; // auto\r
51a902ae 493 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
cc68a136 494 currentConfig.Frameskip = -1; // auto\r
495 currentConfig.CPUclock = 200;\r
496 currentConfig.volume = 50;\r
497 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
498 currentConfig.KeyBinds[ 4] = 1<<1;\r
499 currentConfig.KeyBinds[ 2] = 1<<2;\r
500 currentConfig.KeyBinds[ 6] = 1<<3;\r
501 currentConfig.KeyBinds[14] = 1<<4;\r
502 currentConfig.KeyBinds[13] = 1<<5;\r
503 currentConfig.KeyBinds[12] = 1<<6;\r
504 currentConfig.KeyBinds[ 8] = 1<<7;\r
505 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
506 currentConfig.KeyBinds[10] = 1<<27; // save state\r
507 currentConfig.KeyBinds[11] = 1<<28; // load state\r
508 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
509 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
510 currentConfig.gamma = 100;\r
511 strncpy(cfg, PicoConfigFile, 511);\r
512 cfg[511] = 0;\r
513 } else {\r
860c6322 514 romfname_ext(cfg, "cfg/", ".pbcfg");\r
515 f = fopen(cfg, "rb");\r
516 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
517 else fclose(f);\r
cc68a136 518 }\r
519\r
520 printf("emu_ReadConfig: %s ", cfg);\r
521 f = fopen(cfg, "rb");\r
522 if (f) {\r
523 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
524 fclose(f);\r
525 }\r
526 printf((bread == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
527\r
528 PicoOpt = currentConfig.PicoOpt;\r
529 PsndRate = currentConfig.PsndRate;\r
530 PicoRegionOverride = currentConfig.PicoRegion;\r
51a902ae 531 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
cc68a136 532 if (PicoOpt & 0x20) {\r
533 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";\r
534 actionNames[10] = "X"; actionNames[11] = "MODE";\r
535 }\r
536 // some sanity checks\r
537 if (currentConfig.CPUclock < 1 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
538 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
539 // if volume keys are unbound, bind them to volume control\r
540 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
541 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
542 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
543 }\r
544\r
545 return (bread == sizeof(currentConfig));\r
546}\r
547\r
548\r
549int emu_WriteConfig(int game)\r
550{\r
551 FILE *f;\r
552 char cfg[512];\r
553 int bwrite = 0;\r
554\r
555 if (!game)\r
556 {\r
557 strncpy(cfg, PicoConfigFile, 511);\r
558 cfg[511] = 0;\r
559 } else {\r
860c6322 560 romfname_ext(cfg, "cfg", ".pbcfg");\r
cc68a136 561 }\r
562\r
563 printf("emu_WriteConfig: %s ", cfg);\r
564 f = fopen(cfg, "wb");\r
565 if (f) {\r
566 currentConfig.PicoOpt = PicoOpt;\r
567 currentConfig.PsndRate = PsndRate;\r
568 currentConfig.PicoRegion = PicoRegionOverride;\r
51a902ae 569 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
cc68a136 570 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
571 fflush(f);\r
572 fclose(f);\r
573 sync();\r
574 }\r
575 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
576\r
577 return (bwrite == sizeof(currentConfig));\r
578}\r
579\r
580\r
581void emu_Deinit(void)\r
582{\r
583 // save SRAM\r
584 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
585 emu_SaveLoadGame(0, 1);\r
586 SRam.changed = 0;\r
587 }\r
588\r
589 if (!(currentConfig.EmuOpt & 0x20))\r
590 emu_WriteConfig(0);\r
591 free(framebuff);\r
592\r
593 PicoExit();\r
594// fclose(logf);\r
595\r
596 // restore gamma\r
597 if (gp2x_old_gamma != 100)\r
598 set_gamma(100);\r
599}\r
600\r
601\r
76276b0b 602void osd_text(int x, int y, const char *text)\r
cc68a136 603{\r
604 int len = strlen(text)*8;\r
605\r
606 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
bf098bc5 607 int *p, i, h;\r
cc68a136 608 x &= ~3; // align x\r
609 len = (len+3) >> 2;\r
610 for (h = 0; h < 8; h++) {\r
611 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
bf098bc5 612 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
cc68a136 613 }\r
bf098bc5 614 gp2x_text_out8_2(x, y, text, 0xf0);\r
cc68a136 615 } else {\r
616 int *p, i, h;\r
617 x &= ~1; // align x\r
618 len = (len+1) >> 1;\r
619 for (h = 0; h < 8; h++) {\r
620 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
621 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
622 }\r
623 gp2x_text_out15(x, y, text);\r
624 }\r
625}\r
626\r
bf098bc5 627static void cd_leds(void)\r
628{\r
b837b69b 629 // mmu problems?\r
630// static\r
631 int old_reg;\r
632// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
bf098bc5 633 old_reg = Pico_mcd->s68k_regs[0];\r
634\r
635 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
636 // 8-bit modes\r
637 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
638 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
4f265db7 639 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
640 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
641 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
642 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
643 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
644 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
bf098bc5 645 } else {\r
646 // 16-bit modes\r
4f265db7 647 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
bf098bc5 648 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
649 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
4f265db7 650 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
651 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
652 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
bf098bc5 653 }\r
654}\r
655\r
cc68a136 656static int EmuScan16(unsigned int num, void *sdata)\r
657{\r
658 if (!(Pico.video.reg[1]&8)) num += 8;\r
659 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
660\r
661 return 0;\r
662}\r
663\r
664static int EmuScan8(unsigned int num, void *sdata)\r
665{\r
666 if (!(Pico.video.reg[1]&8)) num += 8;\r
667 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
668\r
669 return 0;\r
670}\r
671\r
e11c5548 672int localPal[0x100];\r
cc68a136 673static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
674\r
76276b0b 675static void blit(const char *fps, const char *notice)\r
cc68a136 676{\r
bf098bc5 677 int emu_opt = currentConfig.EmuOpt;\r
678\r
cc68a136 679 if (PicoOpt&0x10) {\r
680 // 8bit fast renderer\r
681 if (Pico.m.dirtyPal) {\r
682 Pico.m.dirtyPal = 0;\r
683 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
684 // feed new palette to our device\r
685 gp2x_video_setpalette(localPal, 0x40);\r
686 }\r
687 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
bf098bc5 688 } else if (!(emu_opt&0x80)) {\r
cc68a136 689 // 8bit accurate renderer\r
690 if (Pico.m.dirtyPal) {\r
691 Pico.m.dirtyPal = 0;\r
692 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
693 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
694 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
695 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
696 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
bf098bc5 697 localPal[0xc0] = 0x0000c000;\r
698 localPal[0xd0] = 0x00c00000;\r
cc68a136 699 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
700 localPal[0xf0] = 0x00ffffff;\r
701 gp2x_video_setpalette(localPal, 0x100);\r
702 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
703 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
704 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
705 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
706 gp2x_video_setpalette(localPal, 0xc0);\r
707 } else {\r
708 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
709 gp2x_video_setpalette(localPal, 0x40);\r
710 }\r
711 }\r
712 }\r
713\r
714 if (notice) osd_text(4, 232, notice);\r
bf098bc5 715 if (emu_opt & 2)\r
cc68a136 716 osd_text(osd_fps_x, 232, fps);\r
bf098bc5 717 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
718 cd_leds();\r
cc68a136 719\r
720 //gp2x_video_wait_vsync();\r
721 gp2x_video_flip();\r
722\r
723 if (!(PicoOpt&0x10)) {\r
724 if (!(Pico.video.reg[1]&8)) {\r
725 if (currentConfig.EmuOpt&0x80) {\r
726 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
727 } else {\r
728 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
729 }\r
730 } else {\r
731 DrawLineDest = gp2x_screen;\r
732 }\r
733 }\r
734}\r
735\r
736\r
737// clears whole screen or just the notice area (in all buffers)\r
738static void clearArea(int full)\r
739{\r
bf098bc5 740 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
741 // 8-bit renderers\r
742 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
743 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
744 } else {\r
cc68a136 745 // 16bit accurate renderer\r
746 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
747 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
cc68a136 748 }\r
749}\r
750\r
751\r
752static void vidResetMode(void)\r
753{\r
754 if (PicoOpt&0x10) {\r
cc68a136 755 gp2x_video_changemode(8);\r
cc68a136 756 } else if (currentConfig.EmuOpt&0x80) {\r
757 gp2x_video_changemode(15);\r
758 PicoDrawSetColorFormat(1);\r
759 PicoScan = EmuScan16;\r
760 PicoScan(0, 0);\r
761 } else {\r
bf098bc5 762 gp2x_video_changemode(8);\r
763 PicoDrawSetColorFormat(2);\r
764 PicoScan = EmuScan8;\r
765 PicoScan(0, 0);\r
766 }\r
767 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
768 // setup pal for 8-bit modes\r
769 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
770 localPal[0xd0] = 0x00c00000;\r
cc68a136 771 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
772 localPal[0xf0] = 0x00ffffff;\r
cc68a136 773 gp2x_video_setpalette(localPal, 0x100);\r
774 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
775 gp2x_video_flip();\r
cc68a136 776 }\r
777 Pico.m.dirtyPal = 1;\r
778 // reset scaling\r
779 gp2x_video_RGB_setscaling((PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
780}\r
781\r
782\r
fa1e5e29 783static void emu_state_cb(const char *str)\r
784{\r
785 clearArea(0);\r
786 blit("", str);\r
787}\r
788\r
cc68a136 789static void RunEvents(unsigned int which)\r
790{\r
791 if(which & 0x1800) { // save or load (but not both)\r
792 int do_it = 1;\r
860c6322 793 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && emu_check_save_file(state_slot)) {\r
cc68a136 794 unsigned long keys;\r
795 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");\r
796 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
797 usleep(50*1024);\r
798 if (keys & GP2X_X) do_it = 0;\r
799 clearArea(0);\r
800 }\r
801 if (do_it) {\r
76276b0b 802 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
fa1e5e29 803 PicoStateProgressCB = emu_state_cb;\r
804 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
76276b0b 805 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
fa1e5e29 806 PicoStateProgressCB = NULL;\r
cc68a136 807 }\r
808\r
809 reset_timing = 1;\r
810 }\r
811 if(which & 0x0400) { // switch renderer\r
812 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
813 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
814 else currentConfig.EmuOpt &= ~0x80;\r
815\r
816 vidResetMode();\r
817\r
818 if (PicoOpt&0x10) {\r
819 strcpy(noticeMsg, " 8bit fast renderer");\r
820 } else if (currentConfig.EmuOpt&0x80) {\r
821 strcpy(noticeMsg, "16bit accurate renderer");\r
822 } else {\r
823 strcpy(noticeMsg, " 8bit accurate renderer");\r
824 }\r
825\r
826 gettimeofday(&noticeMsgTime, 0);\r
827 }\r
828 if(which & 0x0300) {\r
829 if(which&0x0200) {\r
830 state_slot -= 1;\r
831 if(state_slot < 0) state_slot = 9;\r
832 } else {\r
833 state_slot += 1;\r
834 if(state_slot > 9) state_slot = 0;\r
835 }\r
860c6322 836 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
cc68a136 837 gettimeofday(&noticeMsgTime, 0);\r
838 }\r
839 if(which & 0x0080) {\r
840 engineState = PGS_Menu;\r
841 }\r
842}\r
843\r
844\r
8c1952f0 845static void updateMovie(void)\r
846{\r
847 int offs = Pico.m.frame_count*3 + 0x40;\r
848 if (offs+3 > movie_size) {\r
849 free(movie_data);\r
850 movie_data = 0;\r
851 strcpy(noticeMsg, "END OF MOVIE.");\r
852 printf("END OF MOVIE.\n");\r
853 gettimeofday(&noticeMsgTime, 0);\r
854 } else {\r
855 // MXYZ SACB RLDU\r
856 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
857 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
858 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
859 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
860 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
861 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
862 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
863 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
864 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
865 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
866 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
867 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
868 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
869 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
870 }\r
871}\r
872\r
873\r
cc68a136 874static void updateKeys(void)\r
875{\r
876 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
877 static unsigned long prevEvents = 0;\r
878 int joy, i;\r
879\r
880 keys = gp2x_joystick_read(0);\r
881 if (keys & GP2X_SELECT) {\r
882 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
883 // wait until select is released, so menu would not resume game\r
884 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
885 }\r
886\r
887 keys &= CONFIGURABLE_KEYS;\r
888\r
889 for (i = 0; i < 32; i++)\r
890 {\r
891 if (keys & (1 << i)) {\r
892 int pl, acts = currentConfig.KeyBinds[i];\r
893 if (!acts) continue;\r
894 pl = (acts >> 16) & 1;\r
895 if (combo_keys & (1 << i)) {\r
896 int u = i+1, acts_c = acts & combo_acts;\r
897 // let's try to find the other one\r
898 if (acts_c)\r
899 for (; u < 32; u++)\r
900 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
901 allActions[pl] |= acts_c;\r
902 keys &= ~((1 << i) | (1 << u));\r
903 break;\r
904 }\r
905 // add non-combo actions if combo ones were not found\r
906 if (!acts_c || u == 32)\r
907 allActions[pl] |= acts & ~combo_acts;\r
908 } else {\r
909 allActions[pl] |= acts;\r
910 }\r
911 }\r
912 }\r
913\r
914 // add joy inputs\r
915 if (num_of_joys > 0)\r
916 {\r
917 gp2x_usbjoy_update();\r
918 for (joy = 0; joy < num_of_joys; joy++) {\r
919 int keys = gp2x_usbjoy_check2(joy);\r
920 for (i = 0; i < 32; i++) {\r
921 if (keys & (1 << i)) {\r
922 int acts = currentConfig.JoyBinds[joy][i];\r
923 int pl = (acts >> 16) & 1;\r
924 allActions[pl] |= acts;\r
925 }\r
926 }\r
927 }\r
928 }\r
929\r
8c1952f0 930 PicoPad[0] = (unsigned short) allActions[0];\r
931 PicoPad[1] = (unsigned short) allActions[1];\r
cc68a136 932\r
933 events = (allActions[0] | allActions[1]) >> 16;\r
934\r
935 // volume is treated in special way and triggered every frame\r
936 if(events & 0x6000) {\r
937 int vol = currentConfig.volume;\r
938 if (events & 0x2000) {\r
939 if (vol < 90) vol++;\r
940 } else {\r
941 if (vol > 0) vol--;\r
942 }\r
943 gp2x_sound_volume(vol, vol);\r
944 sprintf(noticeMsg, "VOL: %02i", vol);\r
945 gettimeofday(&noticeMsgTime, 0);\r
946 currentConfig.volume = vol;\r
947 }\r
948\r
949 events &= ~prevEvents;\r
950 if (events) RunEvents(events);\r
8c1952f0 951 if (movie_data) updateMovie();\r
cc68a136 952\r
953 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
954}\r
955\r
cc68a136 956\r
7a93adeb 957static void updateSound(int len)\r
cc68a136 958{\r
7a93adeb 959 if (PicoOpt&8) len<<=1;\r
cc68a136 960\r
961 gp2x_sound_write(PsndOut, len<<1);\r
962}\r
963\r
964\r
965static void SkipFrame(int do_sound)\r
966{\r
967 void *sndbuff_tmp = 0;\r
968 if (PsndOut && !do_sound) {\r
969 sndbuff_tmp = PsndOut;\r
970 PsndOut = 0;\r
971 }\r
972\r
973 PicoSkipFrame=1;\r
974 PicoFrame();\r
975 PicoSkipFrame=0;\r
976\r
977 if (sndbuff_tmp && !do_sound) {\r
978 PsndOut = sndbuff_tmp;\r
979 }\r
980}\r
981\r
982\r
860c6322 983void emu_forced_frame(void)\r
984{\r
985 int po_old = PicoOpt;\r
986\r
987 PicoOpt |= 0x10;\r
988 PicoFrameFull();\r
989 PicoOpt = po_old;\r
990\r
991 if (!(Pico.video.reg[12]&1)) {\r
68cba51e 992 vidCpyM2 = vidCpyM2_32col;\r
860c6322 993 clearArea(1);\r
68cba51e 994 } else vidCpyM2 = vidCpyM2_40col;\r
860c6322 995\r
996 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
997 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
998 gp2x_video_setpalette(localPal, 0x40);\r
999}\r
1000\r
cc68a136 1001static void simpleWait(int thissec, int lim_time)\r
1002{\r
1003 struct timeval tval;\r
1004\r
1005 spend_cycles(1024);\r
1006 gettimeofday(&tval, 0);\r
1007 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1008\r
1009 while(tval.tv_usec < lim_time)\r
1010 {\r
1011 spend_cycles(1024);\r
1012 gettimeofday(&tval, 0);\r
1013 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1014 }\r
1015}\r
1016\r
1017\r
1018void emu_Loop(void)\r
1019{\r
1020 static int gp2x_old_clock = 200;\r
1021 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
1022 char fpsbuff[24]; // fps count c string\r
1023 struct timeval tval; // timing\r
1024 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
1025 int target_fps, target_frametime, lim_time, i;\r
1026 char *notice = 0;\r
1027\r
1028 printf("entered emu_Loop()\n");\r
1029\r
1030 if (gp2x_old_clock != currentConfig.CPUclock) {\r
1031 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
1032 set_FCLK(currentConfig.CPUclock);\r
1033 gp2x_old_clock = currentConfig.CPUclock;\r
1034 printf(" done\n");\r
1035 }\r
1036\r
1037 if (gp2x_old_gamma != currentConfig.gamma) {\r
1038 set_gamma(currentConfig.gamma);\r
1039 gp2x_old_gamma = currentConfig.gamma;\r
1040 printf("updated gamma to %i\n", currentConfig.gamma);\r
1041 }\r
1042\r
1043 fpsbuff[0] = 0;\r
1044\r
1045 // make sure we are in correct mode\r
1046 vidResetMode();\r
e11c5548 1047 Pico.m.dirtyPal = 1;\r
cc68a136 1048 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
1049 find_combos();\r
1050\r
1051 // pal/ntsc might have changed, reset related stuff\r
1052 target_fps = Pico.m.pal ? 50 : 60;\r
1053 target_frametime = 1000000/target_fps;\r
1054 reset_timing = 1;\r
1055\r
1056 // prepare sound stuff\r
1057 if(currentConfig.EmuOpt & 4) {\r
7a93adeb 1058 int snd_excess_add;\r
cc68a136 1059 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
1060 /* if 940 is turned off, we need it to be put back to sleep */\r
1061 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
b837b69b 1062 Reset940(1, 2);\r
cc68a136 1063 Pause940(1);\r
1064 }\r
7a93adeb 1065 sound_rerate(1);\r
cc68a136 1066 }\r
1067 //excess_samples = PsndRate - PsndLen*target_fps;\r
cc68a136 1068 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1069 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
1070 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
1071 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
1072 PicoWriteSound = updateSound;\r
7a93adeb 1073 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1074 PsndOut = sndBuffer;\r
cc68a136 1075 PsndRate_old = PsndRate;\r
1076 PsndLen_real = PsndLen;\r
1077 PicoOpt_old = PicoOpt;\r
1078 pal_old = Pico.m.pal;\r
1079 } else {\r
1080 PsndOut = 0;\r
1081 }\r
1082\r
1083 // loop?\r
1084 while (engineState == PGS_Running)\r
1085 {\r
1086 int modes;\r
1087\r
1088 gettimeofday(&tval, 0);\r
1089 if(reset_timing) {\r
1090 reset_timing = 0;\r
1091 thissec = tval.tv_sec;\r
1092 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
1093 }\r
1094\r
1095 // show notice message?\r
1096 if(noticeMsgTime.tv_sec) {\r
1097 static int noticeMsgSum;\r
1098 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
1099 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
1100 clearArea(0);\r
1101 notice = 0;\r
1102 } else {\r
1103 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
1104 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
1105 notice = noticeMsg;\r
1106 }\r
1107 }\r
1108\r
1109 // check for mode changes\r
1110 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
1111 if (modes != oldmodes) {\r
1112 int scalex = 320;\r
1113 osd_fps_x = OSD_FPS_X;\r
1114 if (modes & 4) {\r
1115 vidCpyM2 = vidCpyM2_40col;\r
1116 } else {\r
1117 if (PicoOpt & 0x100) {\r
1118 vidCpyM2 = vidCpyM2_32col_nobord;\r
1119 scalex = 256;\r
1120 osd_fps_x = OSD_FPS_X - 64;\r
1121 } else {\r
1122 vidCpyM2 = vidCpyM2_32col;\r
1123 }\r
1124 }\r
1125 gp2x_video_RGB_setscaling(scalex, 240);\r
1126 oldmodes = modes;\r
1127 clearArea(1);\r
1128 }\r
1129\r
1130 // second changed?\r
1131 if(thissec != tval.tv_sec) {\r
1132#ifdef BENCHMARK\r
1133 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1134 if(++bench == 10) {\r
1135 bench = 0;\r
1136 bench_fps_s = bench_fps;\r
1137 bf[bfp++ & 3] = bench_fps;\r
1138 bench_fps = 0;\r
1139 }\r
1140 bench_fps += frames_shown;\r
1141 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1142#else\r
1143 if(currentConfig.EmuOpt & 2)\r
1144 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1145#endif\r
1146 thissec = tval.tv_sec;\r
1147\r
1148 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
1149 frames_done = frames_shown = 0;\r
1150 } else {\r
1151 // it is quite common for this implementation to leave 1 fame unfinished\r
1152 // when second changes, but we don't want buffer to starve.\r
1153 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
1154 updateKeys();\r
1155 SkipFrame(1); frames_done++;\r
1156 }\r
1157\r
1158 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
1159 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
1160 if (frames_shown > frames_done) frames_shown = frames_done;\r
1161 }\r
1162 }\r
1163\r
1164 lim_time = (frames_done+1) * target_frametime;\r
1165 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
1166 for(i = 0; i < currentConfig.Frameskip; i++) {\r
1167 updateKeys();\r
1168 SkipFrame(1); frames_done++;\r
1169 if (PsndOut) { // do framelimitting if sound is enabled\r
1170 gettimeofday(&tval, 0);\r
1171 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1172 if(tval.tv_usec < lim_time) { // we are too fast\r
1173 simpleWait(thissec, lim_time);\r
1174 }\r
1175 }\r
1176 lim_time += target_frametime;\r
1177 }\r
1178 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
1179 // no time left for this frame - skip\r
1180 updateKeys();\r
1181 SkipFrame(tval.tv_usec < lim_time+target_frametime); frames_done++;\r
1182 continue;\r
1183 }\r
1184\r
1185 updateKeys();\r
1186 PicoFrame();\r
1187\r
312e9ce1 1188#if 0\r
1189if (Pico.m.frame_count == 31563) {\r
1190 FILE *f;\r
1191 f = fopen("ram_p.bin", "wb");\r
1192 if (!f) { printf("!f\n"); exit(1); }\r
1193 fwrite(Pico.ram, 1, 0x10000, f);\r
1194 fclose(f);\r
1195 exit(0);\r
1196}\r
1197#endif\r
4f672280 1198#if 0\r
1199 // debug\r
1200 {\r
312e9ce1 1201 #define BYTE unsigned char\r
1202 #define WORD unsigned short\r
1203 struct\r
1204 {\r
1205 BYTE IDLength; /* 00h Size of Image ID field */\r
1206 BYTE ColorMapType; /* 01h Color map type */\r
1207 BYTE ImageType; /* 02h Image type code */\r
1208 WORD CMapStart; /* 03h Color map origin */\r
1209 WORD CMapLength; /* 05h Color map length */\r
1210 BYTE CMapDepth; /* 07h Depth of color map entries */\r
1211 WORD XOffset; /* 08h X origin of image */\r
1212 WORD YOffset; /* 0Ah Y origin of image */\r
1213 WORD Width; /* 0Ch Width of image */\r
1214 WORD Height; /* 0Eh Height of image */\r
1215 BYTE PixelDepth; /* 10h Image pixel size */\r
1216 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
1217 } __attribute__((packed)) TGAHEAD;\r
1218 static unsigned short oldscr[320*240];\r
4f672280 1219 FILE *f; char name[128]; int i;\r
312e9ce1 1220\r
1221 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
1222 TGAHEAD.ImageType = 2;\r
1223 TGAHEAD.Width = 320;\r
1224 TGAHEAD.Height = 240;\r
1225 TGAHEAD.PixelDepth = 16;\r
1226 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
1227\r
1228 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
1229\r
1230 for (i = 0; i < 320*240; i++)\r
1231 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
1232 if (i < 320*240)\r
4f672280 1233 {\r
312e9ce1 1234 for (i = 0; i < 320*240; i++)\r
1235 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
1236 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
4f672280 1237 f = fopen(name, "wb");\r
1238 if (!f) { printf("!f\n"); exit(1); }\r
312e9ce1 1239 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
1240 fwrite(oldscr, 1, 320*240*2, f);\r
4f672280 1241 fclose(f);\r
1242 }\r
1243 }\r
1244#endif\r
1245\r
cc68a136 1246 // check time\r
1247 gettimeofday(&tval, 0);\r
1248 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1249\r
1250 // sleep if we are still too fast\r
1251 if(PsndOut != 0 || currentConfig.Frameskip < 0)\r
1252 {\r
1253 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
1254 gettimeofday(&tval, 0);\r
1255 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1256 if(tval.tv_usec < lim_time)\r
1257 {\r
1258 // we are too fast\r
1259 simpleWait(thissec, lim_time);\r
1260 }\r
1261 }\r
1262\r
1263 blit(fpsbuff, notice);\r
1264\r
1265 frames_done++; frames_shown++;\r
1266 }\r
1267\r
1268 // save SRAM\r
1269 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
76276b0b 1270 osd_text(4, 232, "Writing SRAM/BRAM..");\r
cc68a136 1271 emu_SaveLoadGame(0, 1);\r
1272 SRam.changed = 0;\r
1273 }\r
e11c5548 1274\r
1275 // if in 16bit mode, generate 8it image for menu background\r
860c6322 1276 if (!(PicoOpt&0x10) && (currentConfig.EmuOpt&0x80))\r
1277 emu_forced_frame();\r
76276b0b 1278\r
1279 // for menu bg\r
860c6322 1280 gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);\r
cc68a136 1281}\r
1282\r
1283\r
1284void emu_ResetGame(void)\r
1285{\r
1286 PicoReset(0);\r
1287 reset_timing = 1;\r
1288}\r
1289\r
1290\r
1291size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1292{\r
1293 return gzread(file, p, _n);\r
1294}\r
1295\r
1296\r
1297size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1298{\r
1299 return gzwrite(file, p, _n);\r
1300}\r
1301\r
860c6322 1302static int try_ropen_file(const char *fname)\r
1303{\r
1304 FILE *f;\r
1305\r
1306 f = fopen(fname, "rb");\r
1307 if (f) {\r
1308 fclose(f);\r
1309 return 1;\r
1310 }\r
1311 return 0;\r
1312}\r
1313\r
1314char *emu_GetSaveFName(int load, int is_sram, int slot)\r
1315{\r
1316 static char saveFname[512];\r
1317 char ext[16];\r
1318\r
1319 if (is_sram)\r
1320 {\r
1321 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
1322 if (load) {\r
1323 if (try_ropen_file(saveFname)) return saveFname;\r
1324 // try in current dir..\r
1325 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
1326 if (try_ropen_file(saveFname)) return saveFname;\r
1327 return NULL; // give up\r
1328 }\r
1329 }\r
1330 else\r
1331 {\r
1332 ext[0] = 0;\r
1333 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1334 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
1335\r
1336 romfname_ext(saveFname, "mds/", ext);\r
1337 if (load) {\r
1338 if (try_ropen_file(saveFname)) return saveFname;\r
1339 romfname_ext(saveFname, NULL, ext);\r
1340 if (try_ropen_file(saveFname)) return saveFname;\r
1341 if (currentConfig.EmuOpt & 8) {\r
1342 ext[0] = 0;\r
1343 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1344 strcat(ext, ".mds");\r
1345\r
1346 romfname_ext(saveFname, "mds/", ext);\r
1347 if (try_ropen_file(saveFname)) return saveFname;\r
1348 romfname_ext(saveFname, NULL, ext);\r
1349 if (try_ropen_file(saveFname)) return saveFname;\r
1350 }\r
1351 return NULL;\r
1352 }\r
1353 }\r
1354\r
1355 return saveFname;\r
1356}\r
1357\r
1358int emu_check_save_file(int slot)\r
1359{\r
1360 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
1361}\r
1362\r
1363void emu_set_save_cbs(int gz)\r
1364{\r
1365 if (gz) {\r
1366 areaRead = gzRead2;\r
1367 areaWrite = gzWrite2;\r
1368 areaEof = (areaeof *) gzeof;\r
1369 areaSeek = (areaseek *) gzseek;\r
1370 areaClose = (areaclose *) gzclose;\r
1371 } else {\r
1372 areaRead = (arearw *) fread;\r
1373 areaWrite = (arearw *) fwrite;\r
1374 areaEof = (areaeof *) feof;\r
1375 areaSeek = (areaseek *) fseek;\r
1376 areaClose = (areaclose *) fclose;\r
1377 }\r
1378}\r
cc68a136 1379\r
1380int emu_SaveLoadGame(int load, int sram)\r
1381{\r
1382 int ret = 0;\r
860c6322 1383 char *saveFname;\r
cc68a136 1384\r
1385 // make save filename\r
860c6322 1386 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
1387 if (saveFname == NULL) {\r
68cba51e 1388 if (!sram) {\r
1389 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
1390 gettimeofday(&noticeMsgTime, 0);\r
1391 }\r
860c6322 1392 return -1;\r
cc68a136 1393 }\r
1394\r
1395 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1396\r
1397 if(sram) {\r
1398 FILE *sramFile;\r
ab0607f7 1399 int sram_size;\r
1400 unsigned char *sram_data;\r
1401 if (PicoMCD&1) {\r
1402 sram_size = 0x2000;\r
1403 sram_data = Pico_mcd->bram;\r
1404 } else {\r
1405 sram_size = SRam.end-SRam.start+1;\r
1406 if(SRam.reg_back & 4) sram_size=0x2000;\r
1407 sram_data = SRam.data;\r
1408 }\r
1409 if(!sram_data) return 0; // SRam forcefully disabled for this game\r
1410\r
cc68a136 1411 if(load) {\r
1412 sramFile = fopen(saveFname, "rb");\r
1413 if(!sramFile) return -1;\r
ab0607f7 1414 fread(sram_data, 1, sram_size, sramFile);\r
cc68a136 1415 fclose(sramFile);\r
1416 } else {\r
1417 // sram save needs some special processing\r
1418 // see if we have anything to save\r
1419 for(; sram_size > 0; sram_size--)\r
ab0607f7 1420 if(sram_data[sram_size-1]) break;\r
cc68a136 1421\r
1422 if(sram_size) {\r
1423 sramFile = fopen(saveFname, "wb");\r
ab0607f7 1424 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
cc68a136 1425 ret = (ret != sram_size) ? -1 : 0;\r
1426 fclose(sramFile);\r
1427 sync();\r
1428 }\r
1429 }\r
1430 return ret;\r
ab0607f7 1431 }\r
1432 else\r
1433 {\r
cc68a136 1434 void *PmovFile = NULL;\r
860c6322 1435 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
cc68a136 1436 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
860c6322 1437 emu_set_save_cbs(1);\r
cc68a136 1438 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
860c6322 1439 }\r
cc68a136 1440 }\r
860c6322 1441 else\r
1442 {\r
cc68a136 1443 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
860c6322 1444 emu_set_save_cbs(0);\r
cc68a136 1445 }\r
1446 }\r
1447 if(PmovFile) {\r
75736070 1448 ret = PmovState(load ? 6 : 5, PmovFile);\r
860c6322 1449 areaClose(PmovFile);\r
cc68a136 1450 PmovFile = 0;\r
1451 if (!load) sync();\r
1452 else Pico.m.dirtyPal=1;\r
75736070 1453 }\r
1454 else ret = -1;\r
1455 if (!ret)\r
1456 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
1457 else\r
1458 {\r
cc68a136 1459 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
1460 ret = -1;\r
1461 }\r
1462\r
1463 gettimeofday(&noticeMsgTime, 0);\r
1464 return ret;\r
1465 }\r
1466}\r
fast MegaDrive/MegaCD/32X emulator