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