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buggy port of gfx/cd, silpheed started working?
[libpicofe.git] / gp2x / emu.c
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720ee7f6 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
4ffd2858 9#include <sys/stat.h>\r
10#include <sys/types.h>\r
720ee7f6 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
70d2ecc5 24#include <Pico/PicoInt.h>\r
25#include <Pico/Patch.h>\r
26#include <zlib/zlib.h>\r
720ee7f6 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
3ef975c9 54static short sndBuffer[2*44100/50];\r
720ee7f6 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
720ee7f6 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
5111820c 86static int try_rfn_cut(void)\r
720ee7f6 87{\r
88 FILE *tmp;\r
89 char *p;\r
90\r
5111820c 91 p = romFileName + strlen(romFileName) - 1;\r
92 for (; p > romFileName; p--)\r
93 if (*p == '.') break;\r
94 *p = 0;\r
720ee7f6 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
daf91588 103static void get_ext(char *file, char *ext)\r
25fced50 104{\r
105 char *p;\r
106\r
daf91588 107 p = file + strlen(file) - 4;\r
108 if (p < file) p = file;\r
25fced50 109 strncpy(ext, p, 4);\r
110 ext[4] = 0;\r
111 strlwr(ext);\r
112}\r
113\r
daf91588 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
af6e9c49 172static int cd_check(char **bios_file)\r
daf91588 173{\r
174 unsigned char buf[32];\r
af6e9c49 175 pm_file *cd_f;\r
daf91588 176 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
177\r
af6e9c49 178 cd_f = pm_open(romFileName);\r
daf91588 179 if (!cd_f) return 0; // let the upper level handle this\r
180\r
af6e9c49 181 if (pm_read(buf, 32, cd_f) != 32) {\r
182 pm_close(cd_f);\r
daf91588 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
af6e9c49 189 pm_close(cd_f);\r
daf91588 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
af6e9c49 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
daf91588 197\r
598e7c06 198 if (buf[0] == 0x64) region = 8; // EU\r
daf91588 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
720ee7f6 215int emu_ReloadRom(void)\r
216{\r
217 unsigned int rom_size = 0;\r
daf91588 218 char *used_rom_name = romFileName;\r
25fced50 219 char ext[5];\r
af6e9c49 220 pm_file *rom;\r
daf91588 221 int ret, cd_state;\r
720ee7f6 222\r
223 printf("emu_ReloadRom(%s)\n", romFileName);\r
224\r
daf91588 225 get_ext(romFileName, ext);\r
720ee7f6 226\r
daf91588 227 // detect wrong extensions\r
720ee7f6 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
70d2ecc5 233 PicoPatchUnload();\r
234\r
720ee7f6 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
5111820c 268 dummy = try_rfn_cut() || try_rfn_cut();\r
720ee7f6 269 if (!dummy) {\r
270 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
271 return 0;\r
272 }\r
daf91588 273 get_ext(romFileName, ext);\r
720ee7f6 274 }\r
70d2ecc5 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
720ee7f6 285\r
daf91588 286 // check for MegaCD image\r
af6e9c49 287 cd_state = cd_check(&used_rom_name);\r
daf91588 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
49fe50f0 295 if (PicoMCD & 1) PicoExitMCD();\r
daf91588 296 PicoMCD &= ~1;\r
297 }\r
298\r
af6e9c49 299 rom = pm_open(used_rom_name);\r
720ee7f6 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
af6e9c49 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
720ee7f6 316 }\r
af6e9c49 317 pm_close(rom);\r
720ee7f6 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
daf91588 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
720ee7f6 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
daf91588 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
720ee7f6 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
70d2ecc5 355 if (PicoPatches) {\r
356 PicoPatchPrepare();\r
357 PicoPatchApply();\r
358 }\r
359\r
720ee7f6 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
1a20dbc8 365 PicoOpt |= 0x40; // accurate timing\r
720ee7f6 366 if(movie_data[0xF] >= 'A') {\r
1a20dbc8 367 if(movie_data[0x16] & 0x80) {\r
368 PicoRegionOverride = 8;\r
369 } else {\r
370 PicoRegionOverride = 4;\r
371 }\r
372 PicoReset(0);\r
720ee7f6 373 // TODO: bits 6 & 5\r
374 }\r
1a20dbc8 375 movie_data[0x18+30] = 0;\r
376 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
720ee7f6 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
49fe50f0 387\r
720ee7f6 388 // load SRAM for this ROM\r
389 if(currentConfig.EmuOpt & 1)\r
390 emu_SaveLoadGame(1, 1);\r
391\r
720ee7f6 392 return 1;\r
393}\r
394\r
395\r
dfa4c846 396static void emu_msg_cb(const char *msg);\r
397\r
720ee7f6 398void emu_Init(void)\r
399{\r
400 // make temp buffer for alt renderer\r
401 framebuff = malloc((8+320)*(8+240+8));\r
402 if (!framebuff)\r
403 {\r
404 printf("framebuff == 0\n");\r
405 }\r
406\r
4ffd2858 407 // make dirs for saves, cfgs, etc.\r
408 mkdir("mds", 0777);\r
409 mkdir("srm", 0777);\r
410 mkdir("brm", 0777);\r
411 mkdir("cfg", 0777);\r
412\r
720ee7f6 413 PicoInit();\r
dfa4c846 414 PicoMessage = emu_msg_cb;\r
720ee7f6 415\r
416// logf = fopen("log.txt", "w");\r
417}\r
418\r
419\r
4ffd2858 420static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
720ee7f6 421{\r
422 char *p;\r
4ffd2858 423 int prefix_len = 0;\r
720ee7f6 424\r
425 // make save filename\r
426 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
4ffd2858 427 *dst = 0;\r
428 if (prefix) {\r
429 strcpy(dst, prefix);\r
430 prefix_len = strlen(prefix);\r
431 }\r
432 strncpy(dst + prefix_len, p, 511-prefix_len);\r
720ee7f6 433 dst[511-8] = 0;\r
4ffd2858 434 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
435 if (ext) strcat(dst, ext);\r
720ee7f6 436}\r
437\r
438\r
439static void find_combos(void)\r
440{\r
441 int act, u;\r
442\r
443 // find out which keys and actions are combos\r
444 combo_keys = combo_acts = 0;\r
445 for (act = 0; act < 32; act++)\r
446 {\r
447 int keyc = 0;\r
448 if (act == 16) continue; // player2 flag\r
449 for (u = 0; u < 32; u++)\r
450 {\r
451 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
452 }\r
453 if (keyc > 1)\r
454 {\r
455 // loop again and mark those keys and actions as combo\r
456 for (u = 0; u < 32; u++)\r
457 {\r
458 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
459 combo_keys |= 1 << u;\r
460 combo_acts |= 1 << act;\r
461 }\r
462 }\r
463 }\r
464 }\r
465 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
466}\r
467\r
468\r
469int emu_ReadConfig(int game)\r
470{\r
471 FILE *f;\r
472 char cfg[512];\r
473 int bread = 0;\r
474\r
475 if (!game)\r
476 {\r
477 // set default config\r
478 memset(&currentConfig, 0, sizeof(currentConfig));\r
479 currentConfig.lastRomFile[0] = 0;\r
49fe50f0 480 currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds\r
481 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda\r
7bc9cd7f 482 currentConfig.PsndRate = 22050; // 44100;\r
720ee7f6 483 currentConfig.PicoRegion = 0; // auto\r
979ba09f 484 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
720ee7f6 485 currentConfig.Frameskip = -1; // auto\r
486 currentConfig.CPUclock = 200;\r
487 currentConfig.volume = 50;\r
488 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
489 currentConfig.KeyBinds[ 4] = 1<<1;\r
490 currentConfig.KeyBinds[ 2] = 1<<2;\r
491 currentConfig.KeyBinds[ 6] = 1<<3;\r
492 currentConfig.KeyBinds[14] = 1<<4;\r
493 currentConfig.KeyBinds[13] = 1<<5;\r
494 currentConfig.KeyBinds[12] = 1<<6;\r
495 currentConfig.KeyBinds[ 8] = 1<<7;\r
496 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
497 currentConfig.KeyBinds[10] = 1<<27; // save state\r
498 currentConfig.KeyBinds[11] = 1<<28; // load state\r
499 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
500 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
501 currentConfig.gamma = 100;\r
5f9922e6 502 currentConfig.PicoCDBuffers = 64;\r
720ee7f6 503 strncpy(cfg, PicoConfigFile, 511);\r
504 cfg[511] = 0;\r
505 } else {\r
4ffd2858 506 romfname_ext(cfg, "cfg/", ".pbcfg");\r
507 f = fopen(cfg, "rb");\r
508 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
509 else fclose(f);\r
720ee7f6 510 }\r
511\r
512 printf("emu_ReadConfig: %s ", cfg);\r
513 f = fopen(cfg, "rb");\r
514 if (f) {\r
515 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
516 fclose(f);\r
517 }\r
518 printf((bread == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
519\r
520 PicoOpt = currentConfig.PicoOpt;\r
521 PsndRate = currentConfig.PsndRate;\r
522 PicoRegionOverride = currentConfig.PicoRegion;\r
979ba09f 523 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
5f9922e6 524 PicoCDBuffers = currentConfig.PicoCDBuffers;\r
720ee7f6 525 if (PicoOpt & 0x20) {\r
526 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";\r
527 actionNames[10] = "X"; actionNames[11] = "MODE";\r
528 }\r
529 // some sanity checks\r
530 if (currentConfig.CPUclock < 1 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
531 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
532 // if volume keys are unbound, bind them to volume control\r
533 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
534 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
535 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
536 }\r
537\r
538 return (bread == sizeof(currentConfig));\r
539}\r
540\r
541\r
542int emu_WriteConfig(int game)\r
543{\r
544 FILE *f;\r
545 char cfg[512];\r
546 int bwrite = 0;\r
547\r
548 if (!game)\r
549 {\r
550 strncpy(cfg, PicoConfigFile, 511);\r
551 cfg[511] = 0;\r
552 } else {\r
2fb6c387 553 romfname_ext(cfg, "cfg/", ".pbcfg");\r
720ee7f6 554 }\r
555\r
556 printf("emu_WriteConfig: %s ", cfg);\r
557 f = fopen(cfg, "wb");\r
558 if (f) {\r
559 currentConfig.PicoOpt = PicoOpt;\r
560 currentConfig.PsndRate = PsndRate;\r
561 currentConfig.PicoRegion = PicoRegionOverride;\r
979ba09f 562 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
5f9922e6 563 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
720ee7f6 564 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
565 fflush(f);\r
566 fclose(f);\r
567 sync();\r
568 }\r
569 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
570\r
571 return (bwrite == sizeof(currentConfig));\r
572}\r
573\r
574\r
575void emu_Deinit(void)\r
576{\r
577 // save SRAM\r
578 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
579 emu_SaveLoadGame(0, 1);\r
580 SRam.changed = 0;\r
581 }\r
582\r
583 if (!(currentConfig.EmuOpt & 0x20))\r
584 emu_WriteConfig(0);\r
585 free(framebuff);\r
586\r
587 PicoExit();\r
588// fclose(logf);\r
589\r
590 // restore gamma\r
591 if (gp2x_old_gamma != 100)\r
592 set_gamma(100);\r
593}\r
594\r
595\r
0805b5b4 596void osd_text(int x, int y, const char *text)\r
720ee7f6 597{\r
598 int len = strlen(text)*8;\r
599\r
600 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
daf91588 601 int *p, i, h;\r
720ee7f6 602 x &= ~3; // align x\r
603 len = (len+3) >> 2;\r
604 for (h = 0; h < 8; h++) {\r
605 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
daf91588 606 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
720ee7f6 607 }\r
daf91588 608 gp2x_text_out8_2(x, y, text, 0xf0);\r
720ee7f6 609 } else {\r
610 int *p, i, h;\r
611 x &= ~1; // align x\r
612 len = (len+1) >> 1;\r
613 for (h = 0; h < 8; h++) {\r
614 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
615 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
616 }\r
617 gp2x_text_out15(x, y, text);\r
618 }\r
619}\r
620\r
daf91588 621static void cd_leds(void)\r
622{\r
8dfb9fd5 623 // mmu problems?\r
624// static\r
625 int old_reg;\r
626// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
daf91588 627 old_reg = Pico_mcd->s68k_regs[0];\r
628\r
629 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
630 // 8-bit modes\r
631 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
632 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
49fe50f0 633 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
634 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
635 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
636 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
637 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
638 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
daf91588 639 } else {\r
640 // 16-bit modes\r
49fe50f0 641 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
daf91588 642 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
643 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 644 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
645 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
646 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
daf91588 647 }\r
648}\r
649\r
720ee7f6 650static int EmuScan16(unsigned int num, void *sdata)\r
651{\r
652 if (!(Pico.video.reg[1]&8)) num += 8;\r
653 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
654\r
655 return 0;\r
656}\r
657\r
658static int EmuScan8(unsigned int num, void *sdata)\r
659{\r
660 if (!(Pico.video.reg[1]&8)) num += 8;\r
661 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
662\r
663 return 0;\r
664}\r
665\r
e5d315a5 666int localPal[0x100];\r
720ee7f6 667static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
668\r
0805b5b4 669static void blit(const char *fps, const char *notice)\r
720ee7f6 670{\r
daf91588 671 int emu_opt = currentConfig.EmuOpt;\r
672\r
720ee7f6 673 if (PicoOpt&0x10) {\r
674 // 8bit fast renderer\r
675 if (Pico.m.dirtyPal) {\r
676 Pico.m.dirtyPal = 0;\r
677 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
678 // feed new palette to our device\r
679 gp2x_video_setpalette(localPal, 0x40);\r
680 }\r
681 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
daf91588 682 } else if (!(emu_opt&0x80)) {\r
720ee7f6 683 // 8bit accurate renderer\r
684 if (Pico.m.dirtyPal) {\r
685 Pico.m.dirtyPal = 0;\r
686 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
687 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
688 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
689 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
690 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
daf91588 691 localPal[0xc0] = 0x0000c000;\r
692 localPal[0xd0] = 0x00c00000;\r
720ee7f6 693 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
694 localPal[0xf0] = 0x00ffffff;\r
695 gp2x_video_setpalette(localPal, 0x100);\r
696 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
697 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
698 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
699 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
700 gp2x_video_setpalette(localPal, 0xc0);\r
701 } else {\r
702 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
703 gp2x_video_setpalette(localPal, 0x40);\r
704 }\r
705 }\r
706 }\r
707\r
708 if (notice) osd_text(4, 232, notice);\r
daf91588 709 if (emu_opt & 2)\r
720ee7f6 710 osd_text(osd_fps_x, 232, fps);\r
daf91588 711 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
712 cd_leds();\r
720ee7f6 713\r
714 //gp2x_video_wait_vsync();\r
715 gp2x_video_flip();\r
716\r
717 if (!(PicoOpt&0x10)) {\r
718 if (!(Pico.video.reg[1]&8)) {\r
719 if (currentConfig.EmuOpt&0x80) {\r
720 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
721 } else {\r
722 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
723 }\r
724 } else {\r
725 DrawLineDest = gp2x_screen;\r
726 }\r
727 }\r
728}\r
729\r
730\r
731// clears whole screen or just the notice area (in all buffers)\r
732static void clearArea(int full)\r
733{\r
daf91588 734 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
735 // 8-bit renderers\r
736 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
737 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
738 } else {\r
720ee7f6 739 // 16bit accurate renderer\r
740 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
741 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 742 }\r
743}\r
744\r
745\r
746static void vidResetMode(void)\r
747{\r
748 if (PicoOpt&0x10) {\r
720ee7f6 749 gp2x_video_changemode(8);\r
720ee7f6 750 } else if (currentConfig.EmuOpt&0x80) {\r
751 gp2x_video_changemode(15);\r
752 PicoDrawSetColorFormat(1);\r
753 PicoScan = EmuScan16;\r
754 PicoScan(0, 0);\r
755 } else {\r
daf91588 756 gp2x_video_changemode(8);\r
757 PicoDrawSetColorFormat(2);\r
758 PicoScan = EmuScan8;\r
759 PicoScan(0, 0);\r
760 }\r
761 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
762 // setup pal for 8-bit modes\r
763 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
764 localPal[0xd0] = 0x00c00000;\r
720ee7f6 765 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
766 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 767 gp2x_video_setpalette(localPal, 0x100);\r
768 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
769 gp2x_video_flip();\r
720ee7f6 770 }\r
771 Pico.m.dirtyPal = 1;\r
772 // reset scaling\r
773 gp2x_video_RGB_setscaling((PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
774}\r
775\r
776\r
dfa4c846 777static void emu_msg_cb(const char *msg)\r
778{\r
779 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
780 // 8-bit renderers\r
781 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
782 osd_text(4, 232, msg);\r
783 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
784 } else {\r
785 // 16bit accurate renderer\r
786 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
787 osd_text(4, 232, msg);\r
788 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
789 }\r
790 gettimeofday(&noticeMsgTime, 0);\r
791 noticeMsgTime.tv_sec -= 2;\r
792}\r
793\r
1078e544 794static void emu_state_cb(const char *str)\r
795{\r
796 clearArea(0);\r
797 blit("", str);\r
798}\r
799\r
720ee7f6 800static void RunEvents(unsigned int which)\r
801{\r
802 if(which & 0x1800) { // save or load (but not both)\r
803 int do_it = 1;\r
4ffd2858 804 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && emu_check_save_file(state_slot)) {\r
720ee7f6 805 unsigned long keys;\r
806 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");\r
807 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
808 usleep(50*1024);\r
809 if (keys & GP2X_X) do_it = 0;\r
810 clearArea(0);\r
811 }\r
812 if (do_it) {\r
0805b5b4 813 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
1078e544 814 PicoStateProgressCB = emu_state_cb;\r
815 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
0805b5b4 816 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
1078e544 817 PicoStateProgressCB = NULL;\r
720ee7f6 818 }\r
819\r
820 reset_timing = 1;\r
821 }\r
822 if(which & 0x0400) { // switch renderer\r
823 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
824 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
825 else currentConfig.EmuOpt &= ~0x80;\r
826\r
827 vidResetMode();\r
828\r
829 if (PicoOpt&0x10) {\r
830 strcpy(noticeMsg, " 8bit fast renderer");\r
831 } else if (currentConfig.EmuOpt&0x80) {\r
832 strcpy(noticeMsg, "16bit accurate renderer");\r
833 } else {\r
834 strcpy(noticeMsg, " 8bit accurate renderer");\r
835 }\r
836\r
837 gettimeofday(&noticeMsgTime, 0);\r
838 }\r
839 if(which & 0x0300) {\r
840 if(which&0x0200) {\r
841 state_slot -= 1;\r
842 if(state_slot < 0) state_slot = 9;\r
843 } else {\r
844 state_slot += 1;\r
845 if(state_slot > 9) state_slot = 0;\r
846 }\r
4ffd2858 847 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
720ee7f6 848 gettimeofday(&noticeMsgTime, 0);\r
849 }\r
850 if(which & 0x0080) {\r
851 engineState = PGS_Menu;\r
852 }\r
853}\r
854\r
855\r
25fced50 856static void updateMovie(void)\r
857{\r
858 int offs = Pico.m.frame_count*3 + 0x40;\r
859 if (offs+3 > movie_size) {\r
860 free(movie_data);\r
861 movie_data = 0;\r
862 strcpy(noticeMsg, "END OF MOVIE.");\r
863 printf("END OF MOVIE.\n");\r
864 gettimeofday(&noticeMsgTime, 0);\r
865 } else {\r
866 // MXYZ SACB RLDU\r
867 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
868 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
869 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
870 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
871 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
872 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
873 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
874 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
875 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
876 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
877 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
878 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
879 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
880 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
881 }\r
882}\r
883\r
884\r
720ee7f6 885static void updateKeys(void)\r
886{\r
887 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
888 static unsigned long prevEvents = 0;\r
889 int joy, i;\r
890\r
891 keys = gp2x_joystick_read(0);\r
892 if (keys & GP2X_SELECT) {\r
893 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
894 // wait until select is released, so menu would not resume game\r
895 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
896 }\r
897\r
898 keys &= CONFIGURABLE_KEYS;\r
899\r
900 for (i = 0; i < 32; i++)\r
901 {\r
902 if (keys & (1 << i)) {\r
903 int pl, acts = currentConfig.KeyBinds[i];\r
904 if (!acts) continue;\r
905 pl = (acts >> 16) & 1;\r
906 if (combo_keys & (1 << i)) {\r
907 int u = i+1, acts_c = acts & combo_acts;\r
908 // let's try to find the other one\r
909 if (acts_c)\r
910 for (; u < 32; u++)\r
911 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
912 allActions[pl] |= acts_c;\r
913 keys &= ~((1 << i) | (1 << u));\r
914 break;\r
915 }\r
916 // add non-combo actions if combo ones were not found\r
917 if (!acts_c || u == 32)\r
918 allActions[pl] |= acts & ~combo_acts;\r
919 } else {\r
920 allActions[pl] |= acts;\r
921 }\r
922 }\r
923 }\r
924\r
925 // add joy inputs\r
926 if (num_of_joys > 0)\r
927 {\r
928 gp2x_usbjoy_update();\r
929 for (joy = 0; joy < num_of_joys; joy++) {\r
930 int keys = gp2x_usbjoy_check2(joy);\r
931 for (i = 0; i < 32; i++) {\r
932 if (keys & (1 << i)) {\r
933 int acts = currentConfig.JoyBinds[joy][i];\r
934 int pl = (acts >> 16) & 1;\r
935 allActions[pl] |= acts;\r
936 }\r
937 }\r
938 }\r
939 }\r
940\r
25fced50 941 PicoPad[0] = (unsigned short) allActions[0];\r
942 PicoPad[1] = (unsigned short) allActions[1];\r
720ee7f6 943\r
944 events = (allActions[0] | allActions[1]) >> 16;\r
945\r
946 // volume is treated in special way and triggered every frame\r
947 if(events & 0x6000) {\r
948 int vol = currentConfig.volume;\r
949 if (events & 0x2000) {\r
950 if (vol < 90) vol++;\r
951 } else {\r
952 if (vol > 0) vol--;\r
953 }\r
954 gp2x_sound_volume(vol, vol);\r
955 sprintf(noticeMsg, "VOL: %02i", vol);\r
956 gettimeofday(&noticeMsgTime, 0);\r
957 currentConfig.volume = vol;\r
958 }\r
959\r
960 events &= ~prevEvents;\r
961 if (events) RunEvents(events);\r
25fced50 962 if (movie_data) updateMovie();\r
720ee7f6 963\r
964 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
965}\r
966\r
720ee7f6 967\r
3ef975c9 968static void updateSound(int len)\r
720ee7f6 969{\r
3ef975c9 970 if (PicoOpt&8) len<<=1;\r
720ee7f6 971\r
972 gp2x_sound_write(PsndOut, len<<1);\r
973}\r
974\r
975\r
d032c15a 976static void SkipFrame(void)\r
720ee7f6 977{\r
720ee7f6 978 PicoSkipFrame=1;\r
979 PicoFrame();\r
980 PicoSkipFrame=0;\r
720ee7f6 981}\r
982\r
983\r
4ffd2858 984void emu_forced_frame(void)\r
985{\r
986 int po_old = PicoOpt;\r
987\r
988 PicoOpt |= 0x10;\r
989 PicoFrameFull();\r
4ffd2858 990\r
991 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 992 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 993 clearArea(1);\r
dccc2bd0 994 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 995\r
996 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
997 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
998 gp2x_video_setpalette(localPal, 0x40);\r
e1aa0fa7 999\r
1000 PicoOpt = po_old;\r
4ffd2858 1001}\r
1002\r
720ee7f6 1003static void simpleWait(int thissec, int lim_time)\r
1004{\r
1005 struct timeval tval;\r
1006\r
1007 spend_cycles(1024);\r
1008 gettimeofday(&tval, 0);\r
1009 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1010\r
1011 while(tval.tv_usec < lim_time)\r
1012 {\r
1013 spend_cycles(1024);\r
1014 gettimeofday(&tval, 0);\r
1015 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1016 }\r
1017}\r
1018\r
1019\r
1020void emu_Loop(void)\r
1021{\r
1022 static int gp2x_old_clock = 200;\r
1023 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
1024 char fpsbuff[24]; // fps count c string\r
1025 struct timeval tval; // timing\r
1026 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
1027 int target_fps, target_frametime, lim_time, i;\r
1028 char *notice = 0;\r
1029\r
1030 printf("entered emu_Loop()\n");\r
1031\r
1032 if (gp2x_old_clock != currentConfig.CPUclock) {\r
1033 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
1034 set_FCLK(currentConfig.CPUclock);\r
1035 gp2x_old_clock = currentConfig.CPUclock;\r
1036 printf(" done\n");\r
1037 }\r
1038\r
1039 if (gp2x_old_gamma != currentConfig.gamma) {\r
1040 set_gamma(currentConfig.gamma);\r
1041 gp2x_old_gamma = currentConfig.gamma;\r
1042 printf("updated gamma to %i\n", currentConfig.gamma);\r
1043 }\r
1044\r
1045 fpsbuff[0] = 0;\r
1046\r
1047 // make sure we are in correct mode\r
1048 vidResetMode();\r
e5d315a5 1049 Pico.m.dirtyPal = 1;\r
720ee7f6 1050 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
1051 find_combos();\r
1052\r
1053 // pal/ntsc might have changed, reset related stuff\r
1054 target_fps = Pico.m.pal ? 50 : 60;\r
1055 target_frametime = 1000000/target_fps;\r
1056 reset_timing = 1;\r
1057\r
1058 // prepare sound stuff\r
1059 if(currentConfig.EmuOpt & 4) {\r
3ef975c9 1060 int snd_excess_add;\r
720ee7f6 1061 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
1062 /* if 940 is turned off, we need it to be put back to sleep */\r
1063 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
8dfb9fd5 1064 Reset940(1, 2);\r
720ee7f6 1065 Pause940(1);\r
1066 }\r
3ef975c9 1067 sound_rerate(1);\r
720ee7f6 1068 }\r
1069 //excess_samples = PsndRate - PsndLen*target_fps;\r
720ee7f6 1070 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1071 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
1072 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
1073 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
1074 PicoWriteSound = updateSound;\r
3ef975c9 1075 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1076 PsndOut = sndBuffer;\r
720ee7f6 1077 PsndRate_old = PsndRate;\r
1078 PsndLen_real = PsndLen;\r
1079 PicoOpt_old = PicoOpt;\r
1080 pal_old = Pico.m.pal;\r
1081 } else {\r
1082 PsndOut = 0;\r
1083 }\r
1084\r
5f9922e6 1085 // prepare CD buffer\r
1086 if (PicoMCD & 1) PicoCDBufferInit();\r
1087\r
720ee7f6 1088 // loop?\r
1089 while (engineState == PGS_Running)\r
1090 {\r
1091 int modes;\r
1092\r
1093 gettimeofday(&tval, 0);\r
1094 if(reset_timing) {\r
1095 reset_timing = 0;\r
1096 thissec = tval.tv_sec;\r
1097 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
1098 }\r
1099\r
1100 // show notice message?\r
1101 if(noticeMsgTime.tv_sec) {\r
1102 static int noticeMsgSum;\r
1103 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
1104 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
1105 clearArea(0);\r
1106 notice = 0;\r
1107 } else {\r
1108 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
1109 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
1110 notice = noticeMsg;\r
1111 }\r
1112 }\r
1113\r
1114 // check for mode changes\r
1115 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
1116 if (modes != oldmodes) {\r
1117 int scalex = 320;\r
1118 osd_fps_x = OSD_FPS_X;\r
1119 if (modes & 4) {\r
1120 vidCpyM2 = vidCpyM2_40col;\r
1121 } else {\r
1122 if (PicoOpt & 0x100) {\r
1123 vidCpyM2 = vidCpyM2_32col_nobord;\r
1124 scalex = 256;\r
1125 osd_fps_x = OSD_FPS_X - 64;\r
1126 } else {\r
1127 vidCpyM2 = vidCpyM2_32col;\r
1128 }\r
1129 }\r
1130 gp2x_video_RGB_setscaling(scalex, 240);\r
1131 oldmodes = modes;\r
1132 clearArea(1);\r
1133 }\r
1134\r
1135 // second changed?\r
1136 if(thissec != tval.tv_sec) {\r
1137#ifdef BENCHMARK\r
1138 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1139 if(++bench == 10) {\r
1140 bench = 0;\r
1141 bench_fps_s = bench_fps;\r
1142 bf[bfp++ & 3] = bench_fps;\r
1143 bench_fps = 0;\r
1144 }\r
1145 bench_fps += frames_shown;\r
1146 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1147#else\r
1148 if(currentConfig.EmuOpt & 2)\r
1149 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1150#endif\r
1151 thissec = tval.tv_sec;\r
1152\r
1153 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
1154 frames_done = frames_shown = 0;\r
1155 } else {\r
1156 // it is quite common for this implementation to leave 1 fame unfinished\r
1157 // when second changes, but we don't want buffer to starve.\r
1158 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
1159 updateKeys();\r
d032c15a 1160 SkipFrame(); frames_done++;\r
720ee7f6 1161 }\r
1162\r
1163 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
1164 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
1165 if (frames_shown > frames_done) frames_shown = frames_done;\r
1166 }\r
1167 }\r
1168\r
1169 lim_time = (frames_done+1) * target_frametime;\r
1170 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
1171 for(i = 0; i < currentConfig.Frameskip; i++) {\r
1172 updateKeys();\r
d032c15a 1173 SkipFrame(); frames_done++;\r
720ee7f6 1174 if (PsndOut) { // do framelimitting if sound is enabled\r
1175 gettimeofday(&tval, 0);\r
1176 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1177 if(tval.tv_usec < lim_time) { // we are too fast\r
1178 simpleWait(thissec, lim_time);\r
1179 }\r
1180 }\r
1181 lim_time += target_frametime;\r
1182 }\r
1183 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
1184 // no time left for this frame - skip\r
d032c15a 1185 if (tval.tv_usec - lim_time >= 0x300000) {\r
1186 /* something caused a slowdown for us (disk access? cache flush?)\r
1187 * try to recover by resetting timing... */\r
1188 reset_timing = 1;\r
1189 continue;\r
1190 }\r
720ee7f6 1191 updateKeys();\r
d032c15a 1192 SkipFrame(/*tval.tv_usec < lim_time+target_frametime*/); frames_done++;\r
720ee7f6 1193 continue;\r
1194 }\r
1195\r
1196 updateKeys();\r
1197 PicoFrame();\r
1198\r
47f22a1f 1199#if 0\r
1200if (Pico.m.frame_count == 31563) {\r
1201 FILE *f;\r
1202 f = fopen("ram_p.bin", "wb");\r
1203 if (!f) { printf("!f\n"); exit(1); }\r
1204 fwrite(Pico.ram, 1, 0x10000, f);\r
1205 fclose(f);\r
1206 exit(0);\r
1207}\r
1208#endif\r
1a20dbc8 1209#if 0\r
1210 // debug\r
1211 {\r
47f22a1f 1212 #define BYTE unsigned char\r
1213 #define WORD unsigned short\r
1214 struct\r
1215 {\r
1216 BYTE IDLength; /* 00h Size of Image ID field */\r
1217 BYTE ColorMapType; /* 01h Color map type */\r
1218 BYTE ImageType; /* 02h Image type code */\r
1219 WORD CMapStart; /* 03h Color map origin */\r
1220 WORD CMapLength; /* 05h Color map length */\r
1221 BYTE CMapDepth; /* 07h Depth of color map entries */\r
1222 WORD XOffset; /* 08h X origin of image */\r
1223 WORD YOffset; /* 0Ah Y origin of image */\r
1224 WORD Width; /* 0Ch Width of image */\r
1225 WORD Height; /* 0Eh Height of image */\r
1226 BYTE PixelDepth; /* 10h Image pixel size */\r
1227 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
1228 } __attribute__((packed)) TGAHEAD;\r
1229 static unsigned short oldscr[320*240];\r
1a20dbc8 1230 FILE *f; char name[128]; int i;\r
47f22a1f 1231\r
1232 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
1233 TGAHEAD.ImageType = 2;\r
1234 TGAHEAD.Width = 320;\r
1235 TGAHEAD.Height = 240;\r
1236 TGAHEAD.PixelDepth = 16;\r
1237 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
1238\r
1239 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
1240\r
1241 for (i = 0; i < 320*240; i++)\r
1242 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
1243 if (i < 320*240)\r
1a20dbc8 1244 {\r
47f22a1f 1245 for (i = 0; i < 320*240; i++)\r
1246 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
1247 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
1a20dbc8 1248 f = fopen(name, "wb");\r
1249 if (!f) { printf("!f\n"); exit(1); }\r
47f22a1f 1250 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
1251 fwrite(oldscr, 1, 320*240*2, f);\r
1a20dbc8 1252 fclose(f);\r
1253 }\r
1254 }\r
1255#endif\r
1256\r
720ee7f6 1257 // check time\r
1258 gettimeofday(&tval, 0);\r
d032c15a 1259 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 1260\r
d032c15a 1261 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 0x300000) // slowdown detection\r
1262 reset_timing = 1;\r
1263 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 1264 {\r
d032c15a 1265 // sleep if we are still too fast\r
720ee7f6 1266 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
720ee7f6 1267 if(tval.tv_usec < lim_time)\r
1268 {\r
1269 // we are too fast\r
1270 simpleWait(thissec, lim_time);\r
1271 }\r
1272 }\r
1273\r
1274 blit(fpsbuff, notice);\r
1275\r
1276 frames_done++; frames_shown++;\r
1277 }\r
1278\r
5f9922e6 1279\r
1280 if (PicoMCD & 1) PicoCDBufferFree();\r
1281\r
720ee7f6 1282 // save SRAM\r
1283 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
0805b5b4 1284 osd_text(4, 232, "Writing SRAM/BRAM..");\r
720ee7f6 1285 emu_SaveLoadGame(0, 1);\r
1286 SRam.changed = 0;\r
1287 }\r
e5d315a5 1288\r
1289 // if in 16bit mode, generate 8it image for menu background\r
4ffd2858 1290 if (!(PicoOpt&0x10) && (currentConfig.EmuOpt&0x80))\r
1291 emu_forced_frame();\r
0805b5b4 1292\r
1293 // for menu bg\r
4ffd2858 1294 gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);\r
720ee7f6 1295}\r
1296\r
1297\r
1298void emu_ResetGame(void)\r
1299{\r
1300 PicoReset(0);\r
1301 reset_timing = 1;\r
1302}\r
1303\r
1304\r
1305size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1306{\r
1307 return gzread(file, p, _n);\r
1308}\r
1309\r
1310\r
1311size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1312{\r
1313 return gzwrite(file, p, _n);\r
1314}\r
1315\r
4ffd2858 1316static int try_ropen_file(const char *fname)\r
1317{\r
1318 FILE *f;\r
1319\r
1320 f = fopen(fname, "rb");\r
1321 if (f) {\r
1322 fclose(f);\r
1323 return 1;\r
1324 }\r
1325 return 0;\r
1326}\r
1327\r
1328char *emu_GetSaveFName(int load, int is_sram, int slot)\r
1329{\r
1330 static char saveFname[512];\r
1331 char ext[16];\r
1332\r
1333 if (is_sram)\r
1334 {\r
1335 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
1336 if (load) {\r
1337 if (try_ropen_file(saveFname)) return saveFname;\r
1338 // try in current dir..\r
1339 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
1340 if (try_ropen_file(saveFname)) return saveFname;\r
1341 return NULL; // give up\r
1342 }\r
1343 }\r
1344 else\r
1345 {\r
1346 ext[0] = 0;\r
1347 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1348 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
1349\r
1350 romfname_ext(saveFname, "mds/", ext);\r
1351 if (load) {\r
1352 if (try_ropen_file(saveFname)) return saveFname;\r
1353 romfname_ext(saveFname, NULL, ext);\r
1354 if (try_ropen_file(saveFname)) return saveFname;\r
1355 if (currentConfig.EmuOpt & 8) {\r
1356 ext[0] = 0;\r
1357 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1358 strcat(ext, ".mds");\r
1359\r
1360 romfname_ext(saveFname, "mds/", ext);\r
1361 if (try_ropen_file(saveFname)) return saveFname;\r
1362 romfname_ext(saveFname, NULL, ext);\r
1363 if (try_ropen_file(saveFname)) return saveFname;\r
1364 }\r
1365 return NULL;\r
1366 }\r
1367 }\r
1368\r
1369 return saveFname;\r
1370}\r
1371\r
1372int emu_check_save_file(int slot)\r
1373{\r
1374 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
1375}\r
1376\r
1377void emu_set_save_cbs(int gz)\r
1378{\r
1379 if (gz) {\r
1380 areaRead = gzRead2;\r
1381 areaWrite = gzWrite2;\r
1382 areaEof = (areaeof *) gzeof;\r
1383 areaSeek = (areaseek *) gzseek;\r
1384 areaClose = (areaclose *) gzclose;\r
1385 } else {\r
1386 areaRead = (arearw *) fread;\r
1387 areaWrite = (arearw *) fwrite;\r
1388 areaEof = (areaeof *) feof;\r
1389 areaSeek = (areaseek *) fseek;\r
1390 areaClose = (areaclose *) fclose;\r
1391 }\r
1392}\r
720ee7f6 1393\r
1394int emu_SaveLoadGame(int load, int sram)\r
1395{\r
1396 int ret = 0;\r
4ffd2858 1397 char *saveFname;\r
720ee7f6 1398\r
1399 // make save filename\r
4ffd2858 1400 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
1401 if (saveFname == NULL) {\r
dccc2bd0 1402 if (!sram) {\r
1403 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
1404 gettimeofday(&noticeMsgTime, 0);\r
1405 }\r
4ffd2858 1406 return -1;\r
720ee7f6 1407 }\r
1408\r
1409 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1410\r
1411 if(sram) {\r
1412 FILE *sramFile;\r
15f38574 1413 int sram_size;\r
1414 unsigned char *sram_data;\r
1415 if (PicoMCD&1) {\r
1416 sram_size = 0x2000;\r
1417 sram_data = Pico_mcd->bram;\r
1418 } else {\r
1419 sram_size = SRam.end-SRam.start+1;\r
1420 if(SRam.reg_back & 4) sram_size=0x2000;\r
1421 sram_data = SRam.data;\r
1422 }\r
1423 if(!sram_data) return 0; // SRam forcefully disabled for this game\r
1424\r
720ee7f6 1425 if(load) {\r
1426 sramFile = fopen(saveFname, "rb");\r
1427 if(!sramFile) return -1;\r
15f38574 1428 fread(sram_data, 1, sram_size, sramFile);\r
720ee7f6 1429 fclose(sramFile);\r
1430 } else {\r
1431 // sram save needs some special processing\r
1432 // see if we have anything to save\r
1433 for(; sram_size > 0; sram_size--)\r
15f38574 1434 if(sram_data[sram_size-1]) break;\r
720ee7f6 1435\r
1436 if(sram_size) {\r
1437 sramFile = fopen(saveFname, "wb");\r
15f38574 1438 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
720ee7f6 1439 ret = (ret != sram_size) ? -1 : 0;\r
1440 fclose(sramFile);\r
1441 sync();\r
1442 }\r
1443 }\r
1444 return ret;\r
15f38574 1445 }\r
1446 else\r
1447 {\r
720ee7f6 1448 void *PmovFile = NULL;\r
4ffd2858 1449 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
720ee7f6 1450 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
4ffd2858 1451 emu_set_save_cbs(1);\r
720ee7f6 1452 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
4ffd2858 1453 }\r
720ee7f6 1454 }\r
4ffd2858 1455 else\r
1456 {\r
720ee7f6 1457 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
4ffd2858 1458 emu_set_save_cbs(0);\r
720ee7f6 1459 }\r
1460 }\r
1461 if(PmovFile) {\r
98c9d8d9 1462 ret = PmovState(load ? 6 : 5, PmovFile);\r
4ffd2858 1463 areaClose(PmovFile);\r
720ee7f6 1464 PmovFile = 0;\r
1465 if (!load) sync();\r
1466 else Pico.m.dirtyPal=1;\r
98c9d8d9 1467 }\r
1468 else ret = -1;\r
1469 if (!ret)\r
1470 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
1471 else\r
1472 {\r
720ee7f6 1473 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
1474 ret = -1;\r
1475 }\r
1476\r
1477 gettimeofday(&noticeMsgTime, 0);\r
1478 return ret;\r
1479 }\r
1480}\r
PicoDrive's frontend in a lib