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1.20 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
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
cc68a136 427}\r
428\r
429\r
430static void find_combos(void)\r
431{\r
432 int act, u;\r
433\r
434 // find out which keys and actions are combos\r
435 combo_keys = combo_acts = 0;\r
436 for (act = 0; act < 32; act++)\r
437 {\r
438 int keyc = 0;\r
439 if (act == 16) continue; // player2 flag\r
440 for (u = 0; u < 32; u++)\r
441 {\r
442 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
443 }\r
444 if (keyc > 1)\r
445 {\r
446 // loop again and mark those keys and actions as combo\r
447 for (u = 0; u < 32; u++)\r
448 {\r
449 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
450 combo_keys |= 1 << u;\r
451 combo_acts |= 1 << act;\r
452 }\r
453 }\r
454 }\r
455 }\r
456 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
457}\r
458\r
459\r
460int emu_ReadConfig(int game)\r
461{\r
462 FILE *f;\r
463 char cfg[512];\r
464 int bread = 0;\r
465\r
466 if (!game)\r
467 {\r
468 // set default config\r
469 memset(&currentConfig, 0, sizeof(currentConfig));\r
470 currentConfig.lastRomFile[0] = 0;\r
4f265db7 471 currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds\r
472 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda\r
1cd356a3 473 currentConfig.PsndRate = 22050; // 44100;\r
cc68a136 474 currentConfig.PicoRegion = 0; // auto\r
51a902ae 475 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
cc68a136 476 currentConfig.Frameskip = -1; // auto\r
477 currentConfig.CPUclock = 200;\r
478 currentConfig.volume = 50;\r
479 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
480 currentConfig.KeyBinds[ 4] = 1<<1;\r
481 currentConfig.KeyBinds[ 2] = 1<<2;\r
482 currentConfig.KeyBinds[ 6] = 1<<3;\r
483 currentConfig.KeyBinds[14] = 1<<4;\r
484 currentConfig.KeyBinds[13] = 1<<5;\r
485 currentConfig.KeyBinds[12] = 1<<6;\r
486 currentConfig.KeyBinds[ 8] = 1<<7;\r
487 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
488 currentConfig.KeyBinds[10] = 1<<27; // save state\r
489 currentConfig.KeyBinds[11] = 1<<28; // load state\r
490 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
491 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
492 currentConfig.gamma = 100;\r
493 strncpy(cfg, PicoConfigFile, 511);\r
494 cfg[511] = 0;\r
495 } else {\r
860c6322 496 romfname_ext(cfg, "cfg/", ".pbcfg");\r
497 f = fopen(cfg, "rb");\r
498 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
499 else fclose(f);\r
cc68a136 500 }\r
501\r
502 printf("emu_ReadConfig: %s ", cfg);\r
503 f = fopen(cfg, "rb");\r
504 if (f) {\r
505 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
506 fclose(f);\r
507 }\r
508 printf((bread == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
509\r
510 PicoOpt = currentConfig.PicoOpt;\r
511 PsndRate = currentConfig.PsndRate;\r
512 PicoRegionOverride = currentConfig.PicoRegion;\r
51a902ae 513 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
cc68a136 514 if (PicoOpt & 0x20) {\r
515 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";\r
516 actionNames[10] = "X"; actionNames[11] = "MODE";\r
517 }\r
518 // some sanity checks\r
519 if (currentConfig.CPUclock < 1 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
520 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
521 // if volume keys are unbound, bind them to volume control\r
522 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
523 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
524 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
525 }\r
526\r
527 return (bread == sizeof(currentConfig));\r
528}\r
529\r
530\r
531int emu_WriteConfig(int game)\r
532{\r
533 FILE *f;\r
534 char cfg[512];\r
535 int bwrite = 0;\r
536\r
537 if (!game)\r
538 {\r
539 strncpy(cfg, PicoConfigFile, 511);\r
540 cfg[511] = 0;\r
541 } else {\r
860c6322 542 romfname_ext(cfg, "cfg", ".pbcfg");\r
cc68a136 543 }\r
544\r
545 printf("emu_WriteConfig: %s ", cfg);\r
546 f = fopen(cfg, "wb");\r
547 if (f) {\r
548 currentConfig.PicoOpt = PicoOpt;\r
549 currentConfig.PsndRate = PsndRate;\r
550 currentConfig.PicoRegion = PicoRegionOverride;\r
51a902ae 551 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
cc68a136 552 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
553 fflush(f);\r
554 fclose(f);\r
555 sync();\r
556 }\r
557 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
558\r
559 return (bwrite == sizeof(currentConfig));\r
560}\r
561\r
562\r
563void emu_Deinit(void)\r
564{\r
565 // save SRAM\r
566 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
567 emu_SaveLoadGame(0, 1);\r
568 SRam.changed = 0;\r
569 }\r
570\r
571 if (!(currentConfig.EmuOpt & 0x20))\r
572 emu_WriteConfig(0);\r
573 free(framebuff);\r
574\r
575 PicoExit();\r
576// fclose(logf);\r
577\r
578 // restore gamma\r
579 if (gp2x_old_gamma != 100)\r
580 set_gamma(100);\r
581}\r
582\r
583\r
76276b0b 584void osd_text(int x, int y, const char *text)\r
cc68a136 585{\r
586 int len = strlen(text)*8;\r
587\r
588 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
bf098bc5 589 int *p, i, h;\r
cc68a136 590 x &= ~3; // align x\r
591 len = (len+3) >> 2;\r
592 for (h = 0; h < 8; h++) {\r
593 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
bf098bc5 594 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
cc68a136 595 }\r
bf098bc5 596 gp2x_text_out8_2(x, y, text, 0xf0);\r
cc68a136 597 } else {\r
598 int *p, i, h;\r
599 x &= ~1; // align x\r
600 len = (len+1) >> 1;\r
601 for (h = 0; h < 8; h++) {\r
602 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
603 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
604 }\r
605 gp2x_text_out15(x, y, text);\r
606 }\r
607}\r
608\r
bf098bc5 609static void cd_leds(void)\r
610{\r
b837b69b 611 // mmu problems?\r
612// static\r
613 int old_reg;\r
614// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
bf098bc5 615 old_reg = Pico_mcd->s68k_regs[0];\r
616\r
617 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
618 // 8-bit modes\r
619 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
620 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
4f265db7 621 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
622 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
623 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
624 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
625 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
626 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
bf098bc5 627 } else {\r
628 // 16-bit modes\r
4f265db7 629 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
bf098bc5 630 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
631 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
4f265db7 632 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
633 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
634 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
bf098bc5 635 }\r
636}\r
637\r
cc68a136 638static int EmuScan16(unsigned int num, void *sdata)\r
639{\r
640 if (!(Pico.video.reg[1]&8)) num += 8;\r
641 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
642\r
643 return 0;\r
644}\r
645\r
646static int EmuScan8(unsigned int num, void *sdata)\r
647{\r
648 if (!(Pico.video.reg[1]&8)) num += 8;\r
649 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
650\r
651 return 0;\r
652}\r
653\r
e11c5548 654int localPal[0x100];\r
cc68a136 655static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
656\r
76276b0b 657static void blit(const char *fps, const char *notice)\r
cc68a136 658{\r
bf098bc5 659 int emu_opt = currentConfig.EmuOpt;\r
660\r
cc68a136 661 if (PicoOpt&0x10) {\r
662 // 8bit fast renderer\r
663 if (Pico.m.dirtyPal) {\r
664 Pico.m.dirtyPal = 0;\r
665 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
666 // feed new palette to our device\r
667 gp2x_video_setpalette(localPal, 0x40);\r
668 }\r
669 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
bf098bc5 670 } else if (!(emu_opt&0x80)) {\r
cc68a136 671 // 8bit accurate renderer\r
672 if (Pico.m.dirtyPal) {\r
673 Pico.m.dirtyPal = 0;\r
674 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
675 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
676 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
677 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
678 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
bf098bc5 679 localPal[0xc0] = 0x0000c000;\r
680 localPal[0xd0] = 0x00c00000;\r
cc68a136 681 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
682 localPal[0xf0] = 0x00ffffff;\r
683 gp2x_video_setpalette(localPal, 0x100);\r
684 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
685 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
686 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
687 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
688 gp2x_video_setpalette(localPal, 0xc0);\r
689 } else {\r
690 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
691 gp2x_video_setpalette(localPal, 0x40);\r
692 }\r
693 }\r
694 }\r
695\r
696 if (notice) osd_text(4, 232, notice);\r
bf098bc5 697 if (emu_opt & 2)\r
cc68a136 698 osd_text(osd_fps_x, 232, fps);\r
bf098bc5 699 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
700 cd_leds();\r
cc68a136 701\r
702 //gp2x_video_wait_vsync();\r
703 gp2x_video_flip();\r
704\r
705 if (!(PicoOpt&0x10)) {\r
706 if (!(Pico.video.reg[1]&8)) {\r
707 if (currentConfig.EmuOpt&0x80) {\r
708 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
709 } else {\r
710 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
711 }\r
712 } else {\r
713 DrawLineDest = gp2x_screen;\r
714 }\r
715 }\r
716}\r
717\r
718\r
719// clears whole screen or just the notice area (in all buffers)\r
720static void clearArea(int full)\r
721{\r
bf098bc5 722 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
723 // 8-bit renderers\r
724 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
725 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
726 } else {\r
cc68a136 727 // 16bit accurate renderer\r
728 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
729 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
cc68a136 730 }\r
731}\r
732\r
733\r
734static void vidResetMode(void)\r
735{\r
736 if (PicoOpt&0x10) {\r
cc68a136 737 gp2x_video_changemode(8);\r
cc68a136 738 } else if (currentConfig.EmuOpt&0x80) {\r
739 gp2x_video_changemode(15);\r
740 PicoDrawSetColorFormat(1);\r
741 PicoScan = EmuScan16;\r
742 PicoScan(0, 0);\r
743 } else {\r
bf098bc5 744 gp2x_video_changemode(8);\r
745 PicoDrawSetColorFormat(2);\r
746 PicoScan = EmuScan8;\r
747 PicoScan(0, 0);\r
748 }\r
749 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
750 // setup pal for 8-bit modes\r
751 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
752 localPal[0xd0] = 0x00c00000;\r
cc68a136 753 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
754 localPal[0xf0] = 0x00ffffff;\r
cc68a136 755 gp2x_video_setpalette(localPal, 0x100);\r
756 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
757 gp2x_video_flip();\r
cc68a136 758 }\r
759 Pico.m.dirtyPal = 1;\r
760 // reset scaling\r
761 gp2x_video_RGB_setscaling((PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
762}\r
763\r
764\r
fa1e5e29 765static void emu_state_cb(const char *str)\r
766{\r
767 clearArea(0);\r
768 blit("", str);\r
769}\r
770\r
cc68a136 771static void RunEvents(unsigned int which)\r
772{\r
773 if(which & 0x1800) { // save or load (but not both)\r
774 int do_it = 1;\r
860c6322 775 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && emu_check_save_file(state_slot)) {\r
cc68a136 776 unsigned long keys;\r
777 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");\r
778 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
779 usleep(50*1024);\r
780 if (keys & GP2X_X) do_it = 0;\r
781 clearArea(0);\r
782 }\r
783 if (do_it) {\r
76276b0b 784 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
fa1e5e29 785 PicoStateProgressCB = emu_state_cb;\r
786 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
76276b0b 787 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
fa1e5e29 788 PicoStateProgressCB = NULL;\r
cc68a136 789 }\r
790\r
791 reset_timing = 1;\r
792 }\r
793 if(which & 0x0400) { // switch renderer\r
794 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
795 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
796 else currentConfig.EmuOpt &= ~0x80;\r
797\r
798 vidResetMode();\r
799\r
800 if (PicoOpt&0x10) {\r
801 strcpy(noticeMsg, " 8bit fast renderer");\r
802 } else if (currentConfig.EmuOpt&0x80) {\r
803 strcpy(noticeMsg, "16bit accurate renderer");\r
804 } else {\r
805 strcpy(noticeMsg, " 8bit accurate renderer");\r
806 }\r
807\r
808 gettimeofday(&noticeMsgTime, 0);\r
809 }\r
810 if(which & 0x0300) {\r
811 if(which&0x0200) {\r
812 state_slot -= 1;\r
813 if(state_slot < 0) state_slot = 9;\r
814 } else {\r
815 state_slot += 1;\r
816 if(state_slot > 9) state_slot = 0;\r
817 }\r
860c6322 818 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
cc68a136 819 gettimeofday(&noticeMsgTime, 0);\r
820 }\r
821 if(which & 0x0080) {\r
822 engineState = PGS_Menu;\r
823 }\r
824}\r
825\r
826\r
8c1952f0 827static void updateMovie(void)\r
828{\r
829 int offs = Pico.m.frame_count*3 + 0x40;\r
830 if (offs+3 > movie_size) {\r
831 free(movie_data);\r
832 movie_data = 0;\r
833 strcpy(noticeMsg, "END OF MOVIE.");\r
834 printf("END OF MOVIE.\n");\r
835 gettimeofday(&noticeMsgTime, 0);\r
836 } else {\r
837 // MXYZ SACB RLDU\r
838 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
839 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
840 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
841 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
842 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
843 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
844 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
845 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
846 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
847 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
848 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
849 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
850 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
851 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
852 }\r
853}\r
854\r
855\r
cc68a136 856static void updateKeys(void)\r
857{\r
858 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
859 static unsigned long prevEvents = 0;\r
860 int joy, i;\r
861\r
862 keys = gp2x_joystick_read(0);\r
863 if (keys & GP2X_SELECT) {\r
864 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
865 // wait until select is released, so menu would not resume game\r
866 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
867 }\r
868\r
869 keys &= CONFIGURABLE_KEYS;\r
870\r
871 for (i = 0; i < 32; i++)\r
872 {\r
873 if (keys & (1 << i)) {\r
874 int pl, acts = currentConfig.KeyBinds[i];\r
875 if (!acts) continue;\r
876 pl = (acts >> 16) & 1;\r
877 if (combo_keys & (1 << i)) {\r
878 int u = i+1, acts_c = acts & combo_acts;\r
879 // let's try to find the other one\r
880 if (acts_c)\r
881 for (; u < 32; u++)\r
882 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
883 allActions[pl] |= acts_c;\r
884 keys &= ~((1 << i) | (1 << u));\r
885 break;\r
886 }\r
887 // add non-combo actions if combo ones were not found\r
888 if (!acts_c || u == 32)\r
889 allActions[pl] |= acts & ~combo_acts;\r
890 } else {\r
891 allActions[pl] |= acts;\r
892 }\r
893 }\r
894 }\r
895\r
896 // add joy inputs\r
897 if (num_of_joys > 0)\r
898 {\r
899 gp2x_usbjoy_update();\r
900 for (joy = 0; joy < num_of_joys; joy++) {\r
901 int keys = gp2x_usbjoy_check2(joy);\r
902 for (i = 0; i < 32; i++) {\r
903 if (keys & (1 << i)) {\r
904 int acts = currentConfig.JoyBinds[joy][i];\r
905 int pl = (acts >> 16) & 1;\r
906 allActions[pl] |= acts;\r
907 }\r
908 }\r
909 }\r
910 }\r
911\r
8c1952f0 912 PicoPad[0] = (unsigned short) allActions[0];\r
913 PicoPad[1] = (unsigned short) allActions[1];\r
cc68a136 914\r
915 events = (allActions[0] | allActions[1]) >> 16;\r
916\r
917 // volume is treated in special way and triggered every frame\r
918 if(events & 0x6000) {\r
919 int vol = currentConfig.volume;\r
920 if (events & 0x2000) {\r
921 if (vol < 90) vol++;\r
922 } else {\r
923 if (vol > 0) vol--;\r
924 }\r
925 gp2x_sound_volume(vol, vol);\r
926 sprintf(noticeMsg, "VOL: %02i", vol);\r
927 gettimeofday(&noticeMsgTime, 0);\r
928 currentConfig.volume = vol;\r
929 }\r
930\r
931 events &= ~prevEvents;\r
932 if (events) RunEvents(events);\r
8c1952f0 933 if (movie_data) updateMovie();\r
cc68a136 934\r
935 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
936}\r
937\r
cc68a136 938\r
7a93adeb 939static void updateSound(int len)\r
cc68a136 940{\r
7a93adeb 941 if (PicoOpt&8) len<<=1;\r
cc68a136 942\r
943 gp2x_sound_write(PsndOut, len<<1);\r
944}\r
945\r
946\r
947static void SkipFrame(int do_sound)\r
948{\r
949 void *sndbuff_tmp = 0;\r
950 if (PsndOut && !do_sound) {\r
951 sndbuff_tmp = PsndOut;\r
952 PsndOut = 0;\r
953 }\r
954\r
955 PicoSkipFrame=1;\r
956 PicoFrame();\r
957 PicoSkipFrame=0;\r
958\r
959 if (sndbuff_tmp && !do_sound) {\r
960 PsndOut = sndbuff_tmp;\r
961 }\r
962}\r
963\r
964\r
860c6322 965void emu_forced_frame(void)\r
966{\r
967 int po_old = PicoOpt;\r
968\r
969 PicoOpt |= 0x10;\r
970 PicoFrameFull();\r
971 PicoOpt = po_old;\r
972\r
973 if (!(Pico.video.reg[12]&1)) {\r
68cba51e 974 vidCpyM2 = vidCpyM2_32col;\r
860c6322 975 clearArea(1);\r
68cba51e 976 } else vidCpyM2 = vidCpyM2_40col;\r
860c6322 977\r
978 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
979 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
980 gp2x_video_setpalette(localPal, 0x40);\r
981}\r
982\r
cc68a136 983static void simpleWait(int thissec, int lim_time)\r
984{\r
985 struct timeval tval;\r
986\r
987 spend_cycles(1024);\r
988 gettimeofday(&tval, 0);\r
989 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
990\r
991 while(tval.tv_usec < lim_time)\r
992 {\r
993 spend_cycles(1024);\r
994 gettimeofday(&tval, 0);\r
995 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
996 }\r
997}\r
998\r
999\r
1000void emu_Loop(void)\r
1001{\r
1002 static int gp2x_old_clock = 200;\r
1003 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
1004 char fpsbuff[24]; // fps count c string\r
1005 struct timeval tval; // timing\r
1006 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
1007 int target_fps, target_frametime, lim_time, i;\r
1008 char *notice = 0;\r
1009\r
1010 printf("entered emu_Loop()\n");\r
1011\r
1012 if (gp2x_old_clock != currentConfig.CPUclock) {\r
1013 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
1014 set_FCLK(currentConfig.CPUclock);\r
1015 gp2x_old_clock = currentConfig.CPUclock;\r
1016 printf(" done\n");\r
1017 }\r
1018\r
1019 if (gp2x_old_gamma != currentConfig.gamma) {\r
1020 set_gamma(currentConfig.gamma);\r
1021 gp2x_old_gamma = currentConfig.gamma;\r
1022 printf("updated gamma to %i\n", currentConfig.gamma);\r
1023 }\r
1024\r
1025 fpsbuff[0] = 0;\r
1026\r
1027 // make sure we are in correct mode\r
1028 vidResetMode();\r
e11c5548 1029 Pico.m.dirtyPal = 1;\r
cc68a136 1030 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
1031 find_combos();\r
1032\r
1033 // pal/ntsc might have changed, reset related stuff\r
1034 target_fps = Pico.m.pal ? 50 : 60;\r
1035 target_frametime = 1000000/target_fps;\r
1036 reset_timing = 1;\r
1037\r
1038 // prepare sound stuff\r
1039 if(currentConfig.EmuOpt & 4) {\r
7a93adeb 1040 int snd_excess_add;\r
cc68a136 1041 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
1042 /* if 940 is turned off, we need it to be put back to sleep */\r
1043 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
b837b69b 1044 Reset940(1, 2);\r
cc68a136 1045 Pause940(1);\r
1046 }\r
7a93adeb 1047 sound_rerate(1);\r
cc68a136 1048 }\r
1049 //excess_samples = PsndRate - PsndLen*target_fps;\r
cc68a136 1050 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1051 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
1052 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
1053 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
1054 PicoWriteSound = updateSound;\r
7a93adeb 1055 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1056 PsndOut = sndBuffer;\r
cc68a136 1057 PsndRate_old = PsndRate;\r
1058 PsndLen_real = PsndLen;\r
1059 PicoOpt_old = PicoOpt;\r
1060 pal_old = Pico.m.pal;\r
1061 } else {\r
1062 PsndOut = 0;\r
1063 }\r
1064\r
1065 // loop?\r
1066 while (engineState == PGS_Running)\r
1067 {\r
1068 int modes;\r
1069\r
1070 gettimeofday(&tval, 0);\r
1071 if(reset_timing) {\r
1072 reset_timing = 0;\r
1073 thissec = tval.tv_sec;\r
1074 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
1075 }\r
1076\r
1077 // show notice message?\r
1078 if(noticeMsgTime.tv_sec) {\r
1079 static int noticeMsgSum;\r
1080 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
1081 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
1082 clearArea(0);\r
1083 notice = 0;\r
1084 } else {\r
1085 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
1086 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
1087 notice = noticeMsg;\r
1088 }\r
1089 }\r
1090\r
1091 // check for mode changes\r
1092 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
1093 if (modes != oldmodes) {\r
1094 int scalex = 320;\r
1095 osd_fps_x = OSD_FPS_X;\r
1096 if (modes & 4) {\r
1097 vidCpyM2 = vidCpyM2_40col;\r
1098 } else {\r
1099 if (PicoOpt & 0x100) {\r
1100 vidCpyM2 = vidCpyM2_32col_nobord;\r
1101 scalex = 256;\r
1102 osd_fps_x = OSD_FPS_X - 64;\r
1103 } else {\r
1104 vidCpyM2 = vidCpyM2_32col;\r
1105 }\r
1106 }\r
1107 gp2x_video_RGB_setscaling(scalex, 240);\r
1108 oldmodes = modes;\r
1109 clearArea(1);\r
1110 }\r
1111\r
1112 // second changed?\r
1113 if(thissec != tval.tv_sec) {\r
1114#ifdef BENCHMARK\r
1115 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1116 if(++bench == 10) {\r
1117 bench = 0;\r
1118 bench_fps_s = bench_fps;\r
1119 bf[bfp++ & 3] = bench_fps;\r
1120 bench_fps = 0;\r
1121 }\r
1122 bench_fps += frames_shown;\r
1123 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1124#else\r
1125 if(currentConfig.EmuOpt & 2)\r
1126 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1127#endif\r
1128 thissec = tval.tv_sec;\r
1129\r
1130 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
1131 frames_done = frames_shown = 0;\r
1132 } else {\r
1133 // it is quite common for this implementation to leave 1 fame unfinished\r
1134 // when second changes, but we don't want buffer to starve.\r
1135 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
1136 updateKeys();\r
1137 SkipFrame(1); frames_done++;\r
1138 }\r
1139\r
1140 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
1141 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
1142 if (frames_shown > frames_done) frames_shown = frames_done;\r
1143 }\r
1144 }\r
1145\r
1146 lim_time = (frames_done+1) * target_frametime;\r
1147 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
1148 for(i = 0; i < currentConfig.Frameskip; i++) {\r
1149 updateKeys();\r
1150 SkipFrame(1); frames_done++;\r
1151 if (PsndOut) { // do framelimitting if sound is enabled\r
1152 gettimeofday(&tval, 0);\r
1153 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1154 if(tval.tv_usec < lim_time) { // we are too fast\r
1155 simpleWait(thissec, lim_time);\r
1156 }\r
1157 }\r
1158 lim_time += target_frametime;\r
1159 }\r
1160 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
1161 // no time left for this frame - skip\r
1162 updateKeys();\r
1163 SkipFrame(tval.tv_usec < lim_time+target_frametime); frames_done++;\r
1164 continue;\r
1165 }\r
1166\r
1167 updateKeys();\r
1168 PicoFrame();\r
1169\r
312e9ce1 1170#if 0\r
1171if (Pico.m.frame_count == 31563) {\r
1172 FILE *f;\r
1173 f = fopen("ram_p.bin", "wb");\r
1174 if (!f) { printf("!f\n"); exit(1); }\r
1175 fwrite(Pico.ram, 1, 0x10000, f);\r
1176 fclose(f);\r
1177 exit(0);\r
1178}\r
1179#endif\r
4f672280 1180#if 0\r
1181 // debug\r
1182 {\r
312e9ce1 1183 #define BYTE unsigned char\r
1184 #define WORD unsigned short\r
1185 struct\r
1186 {\r
1187 BYTE IDLength; /* 00h Size of Image ID field */\r
1188 BYTE ColorMapType; /* 01h Color map type */\r
1189 BYTE ImageType; /* 02h Image type code */\r
1190 WORD CMapStart; /* 03h Color map origin */\r
1191 WORD CMapLength; /* 05h Color map length */\r
1192 BYTE CMapDepth; /* 07h Depth of color map entries */\r
1193 WORD XOffset; /* 08h X origin of image */\r
1194 WORD YOffset; /* 0Ah Y origin of image */\r
1195 WORD Width; /* 0Ch Width of image */\r
1196 WORD Height; /* 0Eh Height of image */\r
1197 BYTE PixelDepth; /* 10h Image pixel size */\r
1198 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
1199 } __attribute__((packed)) TGAHEAD;\r
1200 static unsigned short oldscr[320*240];\r
4f672280 1201 FILE *f; char name[128]; int i;\r
312e9ce1 1202\r
1203 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
1204 TGAHEAD.ImageType = 2;\r
1205 TGAHEAD.Width = 320;\r
1206 TGAHEAD.Height = 240;\r
1207 TGAHEAD.PixelDepth = 16;\r
1208 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
1209\r
1210 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
1211\r
1212 for (i = 0; i < 320*240; i++)\r
1213 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
1214 if (i < 320*240)\r
4f672280 1215 {\r
312e9ce1 1216 for (i = 0; i < 320*240; i++)\r
1217 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
1218 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
4f672280 1219 f = fopen(name, "wb");\r
1220 if (!f) { printf("!f\n"); exit(1); }\r
312e9ce1 1221 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
1222 fwrite(oldscr, 1, 320*240*2, f);\r
4f672280 1223 fclose(f);\r
1224 }\r
1225 }\r
1226#endif\r
1227\r
cc68a136 1228 // check time\r
1229 gettimeofday(&tval, 0);\r
1230 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1231\r
1232 // sleep if we are still too fast\r
1233 if(PsndOut != 0 || currentConfig.Frameskip < 0)\r
1234 {\r
1235 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
1236 gettimeofday(&tval, 0);\r
1237 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1238 if(tval.tv_usec < lim_time)\r
1239 {\r
1240 // we are too fast\r
1241 simpleWait(thissec, lim_time);\r
1242 }\r
1243 }\r
1244\r
1245 blit(fpsbuff, notice);\r
1246\r
1247 frames_done++; frames_shown++;\r
1248 }\r
1249\r
1250 // save SRAM\r
1251 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
76276b0b 1252 osd_text(4, 232, "Writing SRAM/BRAM..");\r
cc68a136 1253 emu_SaveLoadGame(0, 1);\r
1254 SRam.changed = 0;\r
1255 }\r
e11c5548 1256\r
1257 // if in 16bit mode, generate 8it image for menu background\r
860c6322 1258 if (!(PicoOpt&0x10) && (currentConfig.EmuOpt&0x80))\r
1259 emu_forced_frame();\r
76276b0b 1260\r
1261 // for menu bg\r
860c6322 1262 gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);\r
cc68a136 1263}\r
1264\r
1265\r
1266void emu_ResetGame(void)\r
1267{\r
1268 PicoReset(0);\r
1269 reset_timing = 1;\r
1270}\r
1271\r
1272\r
1273size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1274{\r
1275 return gzread(file, p, _n);\r
1276}\r
1277\r
1278\r
1279size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1280{\r
1281 return gzwrite(file, p, _n);\r
1282}\r
1283\r
860c6322 1284static int try_ropen_file(const char *fname)\r
1285{\r
1286 FILE *f;\r
1287\r
1288 f = fopen(fname, "rb");\r
1289 if (f) {\r
1290 fclose(f);\r
1291 return 1;\r
1292 }\r
1293 return 0;\r
1294}\r
1295\r
1296char *emu_GetSaveFName(int load, int is_sram, int slot)\r
1297{\r
1298 static char saveFname[512];\r
1299 char ext[16];\r
1300\r
1301 if (is_sram)\r
1302 {\r
1303 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
1304 if (load) {\r
1305 if (try_ropen_file(saveFname)) return saveFname;\r
1306 // try in current dir..\r
1307 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
1308 if (try_ropen_file(saveFname)) return saveFname;\r
1309 return NULL; // give up\r
1310 }\r
1311 }\r
1312 else\r
1313 {\r
1314 ext[0] = 0;\r
1315 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1316 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
1317\r
1318 romfname_ext(saveFname, "mds/", ext);\r
1319 if (load) {\r
1320 if (try_ropen_file(saveFname)) return saveFname;\r
1321 romfname_ext(saveFname, NULL, ext);\r
1322 if (try_ropen_file(saveFname)) return saveFname;\r
1323 if (currentConfig.EmuOpt & 8) {\r
1324 ext[0] = 0;\r
1325 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1326 strcat(ext, ".mds");\r
1327\r
1328 romfname_ext(saveFname, "mds/", ext);\r
1329 if (try_ropen_file(saveFname)) return saveFname;\r
1330 romfname_ext(saveFname, NULL, ext);\r
1331 if (try_ropen_file(saveFname)) return saveFname;\r
1332 }\r
1333 return NULL;\r
1334 }\r
1335 }\r
1336\r
1337 return saveFname;\r
1338}\r
1339\r
1340int emu_check_save_file(int slot)\r
1341{\r
1342 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
1343}\r
1344\r
1345void emu_set_save_cbs(int gz)\r
1346{\r
1347 if (gz) {\r
1348 areaRead = gzRead2;\r
1349 areaWrite = gzWrite2;\r
1350 areaEof = (areaeof *) gzeof;\r
1351 areaSeek = (areaseek *) gzseek;\r
1352 areaClose = (areaclose *) gzclose;\r
1353 } else {\r
1354 areaRead = (arearw *) fread;\r
1355 areaWrite = (arearw *) fwrite;\r
1356 areaEof = (areaeof *) feof;\r
1357 areaSeek = (areaseek *) fseek;\r
1358 areaClose = (areaclose *) fclose;\r
1359 }\r
1360}\r
cc68a136 1361\r
1362int emu_SaveLoadGame(int load, int sram)\r
1363{\r
1364 int ret = 0;\r
860c6322 1365 char *saveFname;\r
cc68a136 1366\r
1367 // make save filename\r
860c6322 1368 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
1369 if (saveFname == NULL) {\r
68cba51e 1370 if (!sram) {\r
1371 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
1372 gettimeofday(&noticeMsgTime, 0);\r
1373 }\r
860c6322 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