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