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z80 timing change
[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
00bd648e 57static int osd_fps_x;\r
cc68a136 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
00bd648e 64int reset_timing = 0;\r
cc68a136 65\r
cc68a136 66\r
cc68a136 67// utilities\r
68static void strlwr(char* string)\r
69{\r
70 while ( (*string++ = (char)tolower(*string)) );\r
71}\r
72\r
672ad671 73static int try_rfn_cut(void)\r
cc68a136 74{\r
75 FILE *tmp;\r
76 char *p;\r
77\r
672ad671 78 p = romFileName + strlen(romFileName) - 1;\r
79 for (; p > romFileName; p--)\r
80 if (*p == '.') break;\r
81 *p = 0;\r
cc68a136 82\r
83 if((tmp = fopen(romFileName, "rb"))) {\r
84 fclose(tmp);\r
85 return 1;\r
86 }\r
87 return 0;\r
88}\r
89\r
bf098bc5 90static void get_ext(char *file, char *ext)\r
8c1952f0 91{\r
92 char *p;\r
93\r
bf098bc5 94 p = file + strlen(file) - 4;\r
95 if (p < file) p = file;\r
8c1952f0 96 strncpy(ext, p, 4);\r
97 ext[4] = 0;\r
98 strlwr(ext);\r
99}\r
100\r
bf098bc5 101char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
102char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };\r
103char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
104\r
105extern char **g_argv;\r
106\r
107int find_bios(int region, char **bios_file)\r
108{\r
109 static char bios_path[1024];\r
110 int i, j, count;\r
111 char **files;\r
112 FILE *f = NULL;\r
113\r
114 if (region == 4) { // US\r
115 files = biosfiles_us;\r
116 count = sizeof(biosfiles_us) / sizeof(char *);\r
117 } else if (region == 8) { // EU\r
118 files = biosfiles_eu;\r
119 count = sizeof(biosfiles_eu) / sizeof(char *);\r
120 } else if (region == 1 || region == 2) {\r
121 files = biosfiles_jp;\r
122 count = sizeof(biosfiles_jp) / sizeof(char *);\r
123 } else {\r
124 return 0;\r
125 }\r
126\r
127 for (i = 0; i < count; i++)\r
128 {\r
129 strncpy(bios_path, g_argv[0], 1023);\r
130 bios_path[1024-32] = 0;\r
131 for (j = strlen(bios_path); j > 0; j--)\r
132 if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }\r
133 strcat(bios_path, files[i]);\r
134 strcat(bios_path, ".bin");\r
135 f = fopen(bios_path, "rb");\r
136 if (f) break;\r
137\r
138 bios_path[strlen(bios_path) - 4] = 0;\r
139 strcat(bios_path, ".zip");\r
140 f = fopen(bios_path, "rb");\r
141 if (f) break;\r
142 }\r
143\r
144 if (f) {\r
145 printf("using bios: %s\n", bios_path);\r
146 fclose(f);\r
147 if (bios_file) *bios_file = bios_path;\r
148 return 1;\r
149 } else {\r
150 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
151 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
152 printf("%s\n", menuErrorMsg);\r
153 return 0;\r
154 }\r
155}\r
156\r
157/* checks if romFileName points to valid MegaCD image\r
158 * if so, checks for suitable BIOS */\r
83bd0b76 159static int cd_check(char **bios_file)\r
bf098bc5 160{\r
161 unsigned char buf[32];\r
83bd0b76 162 pm_file *cd_f;\r
bf098bc5 163 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
164\r
83bd0b76 165 cd_f = pm_open(romFileName);\r
bf098bc5 166 if (!cd_f) return 0; // let the upper level handle this\r
167\r
83bd0b76 168 if (pm_read(buf, 32, cd_f) != 32) {\r
169 pm_close(cd_f);\r
bf098bc5 170 return 0;\r
171 }\r
172\r
173 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
174 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
175 if (type == 0) {\r
83bd0b76 176 pm_close(cd_f);\r
bf098bc5 177 return 0;\r
178 }\r
179\r
180 /* it seems we have a CD image here. Try to detect region and load a suitable BIOS now.. */\r
83bd0b76 181 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
182 pm_read(buf, 1, cd_f);\r
183 pm_close(cd_f);\r
bf098bc5 184\r
cb0316e4 185 if (buf[0] == 0x64) region = 8; // EU\r
bf098bc5 186 if (buf[0] == 0xa1) region = 1; // JAP\r
187\r
188 printf("detected %s Sega/Mega CD image with %s region\n",\r
189 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
190\r
191 if (PicoRegionOverride) {\r
192 region = PicoRegionOverride;\r
193 printf("overrided region to %s\n", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
194 }\r
195\r
196 if(find_bios(region, bios_file))\r
197 return type; // CD and BIOS detected\r
198\r
199 return -1; // CD detected but load failed\r
200}\r
201\r
cc68a136 202int emu_ReloadRom(void)\r
203{\r
204 unsigned int rom_size = 0;\r
bf098bc5 205 char *used_rom_name = romFileName;\r
8c1952f0 206 char ext[5];\r
83bd0b76 207 pm_file *rom;\r
bf098bc5 208 int ret, cd_state;\r
cc68a136 209\r
210 printf("emu_ReloadRom(%s)\n", romFileName);\r
211\r
bf098bc5 212 get_ext(romFileName, ext);\r
cc68a136 213\r
bf098bc5 214 // detect wrong extensions\r
cc68a136 215 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
216 sprintf(menuErrorMsg, "Not a ROM selected.");\r
217 return 0;\r
218 }\r
219\r
b67ef287 220 PicoPatchUnload();\r
221\r
cc68a136 222 // check for movie file\r
223 if(movie_data) {\r
224 free(movie_data);\r
225 movie_data = 0;\r
226 }\r
227 if(!strcmp(ext, ".gmv")) {\r
228 // check for both gmv and rom\r
229 int dummy;\r
230 FILE *movie_file = fopen(romFileName, "rb");\r
231 if(!movie_file) {\r
232 sprintf(menuErrorMsg, "Failed to open movie.");\r
233 return 0;\r
234 }\r
235 fseek(movie_file, 0, SEEK_END);\r
236 movie_size = ftell(movie_file);\r
237 fseek(movie_file, 0, SEEK_SET);\r
238 if(movie_size < 64+3) {\r
239 sprintf(menuErrorMsg, "Invalid GMV file.");\r
240 fclose(movie_file);\r
241 return 0;\r
242 }\r
243 movie_data = malloc(movie_size);\r
244 if(movie_data == NULL) {\r
245 sprintf(menuErrorMsg, "low memory.");\r
246 fclose(movie_file);\r
247 return 0;\r
248 }\r
249 fread(movie_data, 1, movie_size, movie_file);\r
250 fclose(movie_file);\r
251 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
252 sprintf(menuErrorMsg, "Invalid GMV file.");\r
253 return 0;\r
254 }\r
672ad671 255 dummy = try_rfn_cut() || try_rfn_cut();\r
cc68a136 256 if (!dummy) {\r
257 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
258 return 0;\r
259 }\r
bf098bc5 260 get_ext(romFileName, ext);\r
cc68a136 261 }\r
b67ef287 262 else if (!strcmp(ext, ".pat")) {\r
263 int dummy;\r
264 PicoPatchLoad(romFileName);\r
265 dummy = try_rfn_cut() || try_rfn_cut();\r
266 if (!dummy) {\r
267 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
268 return 0;\r
269 }\r
270 get_ext(romFileName, ext);\r
271 }\r
cc68a136 272\r
bf098bc5 273 // check for MegaCD image\r
83bd0b76 274 cd_state = cd_check(&used_rom_name);\r
bf098bc5 275 if (cd_state > 0) {\r
276 PicoMCD |= 1;\r
277 get_ext(used_rom_name, ext);\r
278 } else if (cd_state == -1) {\r
279 // bios_help() ?\r
280 return 0;\r
281 } else {\r
4f265db7 282 if (PicoMCD & 1) PicoExitMCD();\r
bf098bc5 283 PicoMCD &= ~1;\r
284 }\r
285\r
83bd0b76 286 rom = pm_open(used_rom_name);\r
cc68a136 287 if(!rom) {\r
288 sprintf(menuErrorMsg, "Failed to open rom.");\r
289 return 0;\r
290 }\r
291\r
292 if(rom_data) {\r
293 free(rom_data);\r
294 rom_data = 0;\r
295 rom_size = 0;\r
296 }\r
297\r
83bd0b76 298 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
299 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
300 printf("%s\n", menuErrorMsg);\r
301 pm_close(rom);\r
302 return 0;\r
cc68a136 303 }\r
83bd0b76 304 pm_close(rom);\r
cc68a136 305\r
306 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
307 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
308 ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
309 if (rom_data) free(rom_data);\r
310 rom_data = 0;\r
311 sprintf(menuErrorMsg, "Not a ROM selected.");\r
312 return 0;\r
313 }\r
314\r
bf098bc5 315 // load config for this ROM (do this before insert to get correct region)\r
316 ret = emu_ReadConfig(1);\r
317 if (!ret)\r
318 emu_ReadConfig(0);\r
319\r
cc68a136 320 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
321 if(PicoCartInsert(rom_data, rom_size)) {\r
322 sprintf(menuErrorMsg, "Failed to load ROM.");\r
323 return 0;\r
324 }\r
325\r
bf098bc5 326 Pico.m.frame_count = 0;\r
327\r
328 // insert CD if it was detected\r
329 if (cd_state > 0) {\r
330 ret = Insert_CD(romFileName, cd_state == 2);\r
331 if (ret != 0) {\r
332 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
333 printf("%s\n", menuErrorMsg);\r
334 return 0;\r
335 }\r
336 }\r
cc68a136 337\r
338 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
339 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
340 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
341\r
b67ef287 342 if (PicoPatches) {\r
343 PicoPatchPrepare();\r
344 PicoPatchApply();\r
345 }\r
346\r
cc68a136 347 // additional movie stuff\r
348 if(movie_data) {\r
349 if(movie_data[0x14] == '6')\r
350 PicoOpt |= 0x20; // 6 button pad\r
351 else PicoOpt &= ~0x20;\r
4f672280 352 PicoOpt |= 0x40; // accurate timing\r
cc68a136 353 if(movie_data[0xF] >= 'A') {\r
4f672280 354 if(movie_data[0x16] & 0x80) {\r
355 PicoRegionOverride = 8;\r
356 } else {\r
357 PicoRegionOverride = 4;\r
358 }\r
359 PicoReset(0);\r
cc68a136 360 // TODO: bits 6 & 5\r
361 }\r
4f672280 362 movie_data[0x18+30] = 0;\r
363 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
cc68a136 364 }\r
365 else\r
366 {\r
367 if(Pico.m.pal) {\r
368 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
369 } else {\r
370 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
371 }\r
372 }\r
373 gettimeofday(&noticeMsgTime, 0);\r
4f265db7 374\r
cc68a136 375 // load SRAM for this ROM\r
376 if(currentConfig.EmuOpt & 1)\r
377 emu_SaveLoadGame(1, 1);\r
378\r
cc68a136 379 return 1;\r
380}\r
381\r
382\r
66fdc0f0 383static void emu_msg_cb(const char *msg);\r
384\r
cc68a136 385void emu_Init(void)\r
386{\r
387 // make temp buffer for alt renderer\r
388 framebuff = malloc((8+320)*(8+240+8));\r
389 if (!framebuff)\r
390 {\r
391 printf("framebuff == 0\n");\r
392 }\r
393\r
860c6322 394 // make dirs for saves, cfgs, etc.\r
395 mkdir("mds", 0777);\r
396 mkdir("srm", 0777);\r
397 mkdir("brm", 0777);\r
398 mkdir("cfg", 0777);\r
399\r
cc68a136 400 PicoInit();\r
66fdc0f0 401 PicoMessage = emu_msg_cb;\r
cc68a136 402\r
403// logf = fopen("log.txt", "w");\r
404}\r
405\r
406\r
860c6322 407static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
cc68a136 408{\r
409 char *p;\r
860c6322 410 int prefix_len = 0;\r
cc68a136 411\r
412 // make save filename\r
413 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
860c6322 414 *dst = 0;\r
415 if (prefix) {\r
416 strcpy(dst, prefix);\r
417 prefix_len = strlen(prefix);\r
418 }\r
419 strncpy(dst + prefix_len, p, 511-prefix_len);\r
cc68a136 420 dst[511-8] = 0;\r
860c6322 421 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
422 if (ext) strcat(dst, ext);\r
cc68a136 423}\r
424\r
425\r
426static void find_combos(void)\r
427{\r
428 int act, u;\r
429\r
430 // find out which keys and actions are combos\r
431 combo_keys = combo_acts = 0;\r
432 for (act = 0; act < 32; act++)\r
433 {\r
434 int keyc = 0;\r
435 if (act == 16) continue; // player2 flag\r
436 for (u = 0; u < 32; u++)\r
437 {\r
438 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
439 }\r
440 if (keyc > 1)\r
441 {\r
442 // loop again and mark those keys and actions as combo\r
443 for (u = 0; u < 32; u++)\r
444 {\r
445 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
446 combo_keys |= 1 << u;\r
447 combo_acts |= 1 << act;\r
448 }\r
449 }\r
450 }\r
451 }\r
452 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
453}\r
454\r
455\r
2433f409 456void scaling_update(void)\r
457{\r
458 PicoOpt &= ~0x4100;\r
459 switch (currentConfig.scaling) {\r
460 default: break; // off\r
461 case 1: // hw hor\r
462 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
463 case 3: PicoOpt |= 0x4000; break; // sw hor\r
464 }\r
465}\r
466\r
467\r
cc68a136 468int emu_ReadConfig(int game)\r
469{\r
470 FILE *f;\r
471 char cfg[512];\r
472 int bread = 0;\r
473\r
474 if (!game)\r
475 {\r
476 // set default config\r
477 memset(&currentConfig, 0, sizeof(currentConfig));\r
478 currentConfig.lastRomFile[0] = 0;\r
4f265db7 479 currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds\r
480 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda\r
1cd356a3 481 currentConfig.PsndRate = 22050; // 44100;\r
cc68a136 482 currentConfig.PicoRegion = 0; // auto\r
51a902ae 483 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
cc68a136 484 currentConfig.Frameskip = -1; // auto\r
485 currentConfig.CPUclock = 200;\r
486 currentConfig.volume = 50;\r
487 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
488 currentConfig.KeyBinds[ 4] = 1<<1;\r
489 currentConfig.KeyBinds[ 2] = 1<<2;\r
490 currentConfig.KeyBinds[ 6] = 1<<3;\r
491 currentConfig.KeyBinds[14] = 1<<4;\r
492 currentConfig.KeyBinds[13] = 1<<5;\r
493 currentConfig.KeyBinds[12] = 1<<6;\r
494 currentConfig.KeyBinds[ 8] = 1<<7;\r
495 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
496 currentConfig.KeyBinds[10] = 1<<27; // save state\r
497 currentConfig.KeyBinds[11] = 1<<28; // load state\r
498 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
499 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
500 currentConfig.gamma = 100;\r
0a051f55 501 currentConfig.PicoCDBuffers = 64;\r
2433f409 502 currentConfig.scaling = 0;\r
cc68a136 503 strncpy(cfg, PicoConfigFile, 511);\r
504 cfg[511] = 0;\r
505 } else {\r
860c6322 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
cc68a136 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
2433f409 518 printf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
cc68a136 519\r
520 PicoOpt = currentConfig.PicoOpt;\r
521 PsndRate = currentConfig.PsndRate;\r
522 PicoRegionOverride = currentConfig.PicoRegion;\r
51a902ae 523 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
0a051f55 524 PicoCDBuffers = currentConfig.PicoCDBuffers;\r
cc68a136 525 if (PicoOpt & 0x20) {\r
526 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";\r
527 actionNames[10] = "X"; actionNames[11] = "MODE";\r
528 }\r
2433f409 529 scaling_update();\r
cc68a136 530 // some sanity checks\r
531 if (currentConfig.CPUclock < 1 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
532 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
533 // if volume keys are unbound, bind them to volume control\r
534 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
535 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
536 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
537 }\r
538\r
2433f409 539 return (bread > 0); // == sizeof(currentConfig));\r
cc68a136 540}\r
541\r
542\r
543int emu_WriteConfig(int game)\r
544{\r
545 FILE *f;\r
546 char cfg[512];\r
547 int bwrite = 0;\r
548\r
549 if (!game)\r
550 {\r
551 strncpy(cfg, PicoConfigFile, 511);\r
552 cfg[511] = 0;\r
553 } else {\r
7336a99a 554 romfname_ext(cfg, "cfg/", ".pbcfg");\r
cc68a136 555 }\r
556\r
557 printf("emu_WriteConfig: %s ", cfg);\r
558 f = fopen(cfg, "wb");\r
559 if (f) {\r
560 currentConfig.PicoOpt = PicoOpt;\r
561 currentConfig.PsndRate = PsndRate;\r
562 currentConfig.PicoRegion = PicoRegionOverride;\r
51a902ae 563 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
0a051f55 564 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
cc68a136 565 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
566 fflush(f);\r
567 fclose(f);\r
2433f409 568#ifndef NO_SYNC\r
cc68a136 569 sync();\r
2433f409 570#endif\r
cc68a136 571 }\r
572 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
573\r
574 return (bwrite == sizeof(currentConfig));\r
575}\r
576\r
577\r
578void emu_Deinit(void)\r
579{\r
580 // save SRAM\r
581 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
582 emu_SaveLoadGame(0, 1);\r
583 SRam.changed = 0;\r
584 }\r
585\r
2433f409 586 if (!(currentConfig.EmuOpt & 0x20)) {\r
587 FILE *f = fopen(PicoConfigFile, "r+b");\r
588 if (!f) emu_WriteConfig(0);\r
589 else {\r
590 // if we already have config, reload it, except last ROM\r
591 fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);\r
592 fread(&currentConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);\r
593 fseek(f, 0, SEEK_SET);\r
594 fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
595 fflush(f);\r
596 fclose(f);\r
597#ifndef NO_SYNC\r
598 sync();\r
599#endif\r
600 }\r
601 }\r
602\r
cc68a136 603 free(framebuff);\r
604\r
605 PicoExit();\r
606// fclose(logf);\r
607\r
608 // restore gamma\r
609 if (gp2x_old_gamma != 100)\r
610 set_gamma(100);\r
611}\r
612\r
613\r
76276b0b 614void osd_text(int x, int y, const char *text)\r
cc68a136 615{\r
616 int len = strlen(text)*8;\r
617\r
618 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
bf098bc5 619 int *p, i, h;\r
cc68a136 620 x &= ~3; // align x\r
621 len = (len+3) >> 2;\r
622 for (h = 0; h < 8; h++) {\r
623 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
bf098bc5 624 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
cc68a136 625 }\r
bf098bc5 626 gp2x_text_out8_2(x, y, text, 0xf0);\r
cc68a136 627 } else {\r
628 int *p, i, h;\r
629 x &= ~1; // align x\r
630 len = (len+1) >> 1;\r
631 for (h = 0; h < 8; h++) {\r
632 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
633 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
634 }\r
635 gp2x_text_out15(x, y, text);\r
636 }\r
637}\r
638\r
bf098bc5 639static void cd_leds(void)\r
640{\r
b837b69b 641 // mmu problems?\r
642// static\r
643 int old_reg;\r
644// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
bf098bc5 645 old_reg = Pico_mcd->s68k_regs[0];\r
646\r
647 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
648 // 8-bit modes\r
649 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
650 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
4f265db7 651 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
652 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
653 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
654 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
655 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
656 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
bf098bc5 657 } else {\r
658 // 16-bit modes\r
4f265db7 659 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
bf098bc5 660 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
661 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
4f265db7 662 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
663 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
664 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
bf098bc5 665 }\r
666}\r
667\r
cc68a136 668static int EmuScan16(unsigned int num, void *sdata)\r
669{\r
670 if (!(Pico.video.reg[1]&8)) num += 8;\r
671 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
672\r
673 return 0;\r
674}\r
675\r
676static int EmuScan8(unsigned int num, void *sdata)\r
677{\r
678 if (!(Pico.video.reg[1]&8)) num += 8;\r
679 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
680\r
681 return 0;\r
682}\r
683\r
e11c5548 684int localPal[0x100];\r
cc68a136 685static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
686\r
76276b0b 687static void blit(const char *fps, const char *notice)\r
cc68a136 688{\r
bf098bc5 689 int emu_opt = currentConfig.EmuOpt;\r
690\r
cc68a136 691 if (PicoOpt&0x10) {\r
692 // 8bit fast renderer\r
693 if (Pico.m.dirtyPal) {\r
694 Pico.m.dirtyPal = 0;\r
695 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
696 // feed new palette to our device\r
697 gp2x_video_setpalette(localPal, 0x40);\r
698 }\r
699 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
bf098bc5 700 } else if (!(emu_opt&0x80)) {\r
cc68a136 701 // 8bit accurate renderer\r
702 if (Pico.m.dirtyPal) {\r
703 Pico.m.dirtyPal = 0;\r
704 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
705 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
706 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
707 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
708 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
bf098bc5 709 localPal[0xc0] = 0x0000c000;\r
710 localPal[0xd0] = 0x00c00000;\r
cc68a136 711 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
712 localPal[0xf0] = 0x00ffffff;\r
713 gp2x_video_setpalette(localPal, 0x100);\r
714 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
715 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
716 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
717 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
718 gp2x_video_setpalette(localPal, 0xc0);\r
719 } else {\r
720 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
721 gp2x_video_setpalette(localPal, 0x40);\r
722 }\r
723 }\r
724 }\r
725\r
2433f409 726 if (notice || (emu_opt & 2)) {\r
727 int h = 232;\r
728 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
729 if (notice) osd_text(4, h, notice);\r
730 if (emu_opt & 2)\r
731 osd_text(osd_fps_x, h, fps);\r
732 }\r
bf098bc5 733 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
734 cd_leds();\r
cc68a136 735\r
736 //gp2x_video_wait_vsync();\r
737 gp2x_video_flip();\r
738\r
739 if (!(PicoOpt&0x10)) {\r
740 if (!(Pico.video.reg[1]&8)) {\r
741 if (currentConfig.EmuOpt&0x80) {\r
742 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
743 } else {\r
744 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
745 }\r
746 } else {\r
747 DrawLineDest = gp2x_screen;\r
748 }\r
749 }\r
750}\r
751\r
752\r
753// clears whole screen or just the notice area (in all buffers)\r
754static void clearArea(int full)\r
755{\r
bf098bc5 756 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
757 // 8-bit renderers\r
758 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
759 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
760 } else {\r
cc68a136 761 // 16bit accurate renderer\r
762 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
763 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
cc68a136 764 }\r
765}\r
766\r
767\r
768static void vidResetMode(void)\r
769{\r
770 if (PicoOpt&0x10) {\r
cc68a136 771 gp2x_video_changemode(8);\r
cc68a136 772 } else if (currentConfig.EmuOpt&0x80) {\r
773 gp2x_video_changemode(15);\r
774 PicoDrawSetColorFormat(1);\r
775 PicoScan = EmuScan16;\r
776 PicoScan(0, 0);\r
777 } else {\r
bf098bc5 778 gp2x_video_changemode(8);\r
779 PicoDrawSetColorFormat(2);\r
780 PicoScan = EmuScan8;\r
781 PicoScan(0, 0);\r
782 }\r
783 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
784 // setup pal for 8-bit modes\r
785 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
786 localPal[0xd0] = 0x00c00000;\r
cc68a136 787 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
788 localPal[0xf0] = 0x00ffffff;\r
cc68a136 789 gp2x_video_setpalette(localPal, 0x100);\r
790 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
791 gp2x_video_flip();\r
cc68a136 792 }\r
793 Pico.m.dirtyPal = 1;\r
794 // reset scaling\r
2433f409 795 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
796 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
797 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
cc68a136 798}\r
799\r
800\r
66fdc0f0 801static void emu_msg_cb(const char *msg)\r
802{\r
803 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
804 // 8-bit renderers\r
805 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
806 osd_text(4, 232, msg);\r
807 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
808 } else {\r
809 // 16bit accurate renderer\r
810 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
811 osd_text(4, 232, msg);\r
812 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
813 }\r
814 gettimeofday(&noticeMsgTime, 0);\r
815 noticeMsgTime.tv_sec -= 2;\r
7a1f6e45 816\r
817 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
818 reset_timing = 1;\r
66fdc0f0 819}\r
820\r
fa1e5e29 821static void emu_state_cb(const char *str)\r
822{\r
823 clearArea(0);\r
824 blit("", str);\r
825}\r
826\r
cc68a136 827static void RunEvents(unsigned int which)\r
828{\r
829 if(which & 0x1800) { // save or load (but not both)\r
830 int do_it = 1;\r
860c6322 831 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && emu_check_save_file(state_slot)) {\r
cc68a136 832 unsigned long keys;\r
833 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");\r
834 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
835 usleep(50*1024);\r
836 if (keys & GP2X_X) do_it = 0;\r
837 clearArea(0);\r
838 }\r
839 if (do_it) {\r
76276b0b 840 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
fa1e5e29 841 PicoStateProgressCB = emu_state_cb;\r
842 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
76276b0b 843 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
fa1e5e29 844 PicoStateProgressCB = NULL;\r
cc68a136 845 }\r
846\r
847 reset_timing = 1;\r
848 }\r
849 if(which & 0x0400) { // switch renderer\r
850 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
851 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
852 else currentConfig.EmuOpt &= ~0x80;\r
853\r
854 vidResetMode();\r
855\r
856 if (PicoOpt&0x10) {\r
857 strcpy(noticeMsg, " 8bit fast renderer");\r
858 } else if (currentConfig.EmuOpt&0x80) {\r
859 strcpy(noticeMsg, "16bit accurate renderer");\r
860 } else {\r
861 strcpy(noticeMsg, " 8bit accurate renderer");\r
862 }\r
863\r
864 gettimeofday(&noticeMsgTime, 0);\r
865 }\r
866 if(which & 0x0300) {\r
867 if(which&0x0200) {\r
868 state_slot -= 1;\r
869 if(state_slot < 0) state_slot = 9;\r
870 } else {\r
871 state_slot += 1;\r
872 if(state_slot > 9) state_slot = 0;\r
873 }\r
860c6322 874 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
cc68a136 875 gettimeofday(&noticeMsgTime, 0);\r
876 }\r
877 if(which & 0x0080) {\r
878 engineState = PGS_Menu;\r
879 }\r
880}\r
881\r
882\r
8c1952f0 883static void updateMovie(void)\r
884{\r
885 int offs = Pico.m.frame_count*3 + 0x40;\r
886 if (offs+3 > movie_size) {\r
887 free(movie_data);\r
888 movie_data = 0;\r
889 strcpy(noticeMsg, "END OF MOVIE.");\r
890 printf("END OF MOVIE.\n");\r
891 gettimeofday(&noticeMsgTime, 0);\r
892 } else {\r
893 // MXYZ SACB RLDU\r
894 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
895 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
896 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
897 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
898 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
899 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
900 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
901 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
902 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
903 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
904 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
905 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
906 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
907 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
908 }\r
909}\r
910\r
911\r
cc68a136 912static void updateKeys(void)\r
913{\r
914 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
915 static unsigned long prevEvents = 0;\r
916 int joy, i;\r
917\r
918 keys = gp2x_joystick_read(0);\r
919 if (keys & GP2X_SELECT) {\r
920 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
921 // wait until select is released, so menu would not resume game\r
922 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
923 }\r
924\r
925 keys &= CONFIGURABLE_KEYS;\r
926\r
927 for (i = 0; i < 32; i++)\r
928 {\r
929 if (keys & (1 << i)) {\r
930 int pl, acts = currentConfig.KeyBinds[i];\r
931 if (!acts) continue;\r
932 pl = (acts >> 16) & 1;\r
933 if (combo_keys & (1 << i)) {\r
934 int u = i+1, acts_c = acts & combo_acts;\r
935 // let's try to find the other one\r
936 if (acts_c)\r
937 for (; u < 32; u++)\r
938 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
939 allActions[pl] |= acts_c;\r
940 keys &= ~((1 << i) | (1 << u));\r
941 break;\r
942 }\r
943 // add non-combo actions if combo ones were not found\r
944 if (!acts_c || u == 32)\r
945 allActions[pl] |= acts & ~combo_acts;\r
946 } else {\r
947 allActions[pl] |= acts;\r
948 }\r
949 }\r
950 }\r
951\r
952 // add joy inputs\r
953 if (num_of_joys > 0)\r
954 {\r
955 gp2x_usbjoy_update();\r
956 for (joy = 0; joy < num_of_joys; joy++) {\r
957 int keys = gp2x_usbjoy_check2(joy);\r
958 for (i = 0; i < 32; i++) {\r
959 if (keys & (1 << i)) {\r
960 int acts = currentConfig.JoyBinds[joy][i];\r
961 int pl = (acts >> 16) & 1;\r
962 allActions[pl] |= acts;\r
963 }\r
964 }\r
965 }\r
966 }\r
967\r
8c1952f0 968 PicoPad[0] = (unsigned short) allActions[0];\r
969 PicoPad[1] = (unsigned short) allActions[1];\r
cc68a136 970\r
971 events = (allActions[0] | allActions[1]) >> 16;\r
972\r
973 // volume is treated in special way and triggered every frame\r
974 if(events & 0x6000) {\r
975 int vol = currentConfig.volume;\r
976 if (events & 0x2000) {\r
977 if (vol < 90) vol++;\r
978 } else {\r
979 if (vol > 0) vol--;\r
980 }\r
981 gp2x_sound_volume(vol, vol);\r
982 sprintf(noticeMsg, "VOL: %02i", vol);\r
983 gettimeofday(&noticeMsgTime, 0);\r
984 currentConfig.volume = vol;\r
985 }\r
986\r
987 events &= ~prevEvents;\r
988 if (events) RunEvents(events);\r
8c1952f0 989 if (movie_data) updateMovie();\r
cc68a136 990\r
991 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
992}\r
993\r
cc68a136 994\r
7a93adeb 995static void updateSound(int len)\r
cc68a136 996{\r
7a93adeb 997 if (PicoOpt&8) len<<=1;\r
cc68a136 998\r
01bc6b19 999 /* avoid writing audio when lagging behind to prevent audio lag */\r
1000 if (PicoSkipFrame != 2)\r
1001 gp2x_sound_write(PsndOut, len<<1);\r
cc68a136 1002}\r
1003\r
1004\r
01bc6b19 1005static void SkipFrame(int do_audio)\r
cc68a136 1006{\r
01bc6b19 1007 PicoSkipFrame=do_audio ? 1 : 2;\r
cc68a136 1008 PicoFrame();\r
1009 PicoSkipFrame=0;\r
cc68a136 1010}\r
1011\r
1012\r
860c6322 1013void emu_forced_frame(void)\r
1014{\r
1015 int po_old = PicoOpt;\r
1016\r
1017 PicoOpt |= 0x10;\r
1018 PicoFrameFull();\r
860c6322 1019\r
1020 if (!(Pico.video.reg[12]&1)) {\r
68cba51e 1021 vidCpyM2 = vidCpyM2_32col;\r
860c6322 1022 clearArea(1);\r
68cba51e 1023 } else vidCpyM2 = vidCpyM2_40col;\r
860c6322 1024\r
1025 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
1026 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
1027 gp2x_video_setpalette(localPal, 0x40);\r
48e8482f 1028\r
1029 PicoOpt = po_old;\r
860c6322 1030}\r
1031\r
cc68a136 1032static void simpleWait(int thissec, int lim_time)\r
1033{\r
1034 struct timeval tval;\r
1035\r
1036 spend_cycles(1024);\r
1037 gettimeofday(&tval, 0);\r
1038 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1039\r
1040 while(tval.tv_usec < lim_time)\r
1041 {\r
1042 spend_cycles(1024);\r
1043 gettimeofday(&tval, 0);\r
1044 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1045 }\r
1046}\r
1047\r
1048\r
1049void emu_Loop(void)\r
1050{\r
1051 static int gp2x_old_clock = 200;\r
1052 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
1053 char fpsbuff[24]; // fps count c string\r
1054 struct timeval tval; // timing\r
1055 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
1056 int target_fps, target_frametime, lim_time, i;\r
1057 char *notice = 0;\r
1058\r
1059 printf("entered emu_Loop()\n");\r
1060\r
1061 if (gp2x_old_clock != currentConfig.CPUclock) {\r
1062 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
1063 set_FCLK(currentConfig.CPUclock);\r
1064 gp2x_old_clock = currentConfig.CPUclock;\r
1065 printf(" done\n");\r
1066 }\r
1067\r
1068 if (gp2x_old_gamma != currentConfig.gamma) {\r
1069 set_gamma(currentConfig.gamma);\r
1070 gp2x_old_gamma = currentConfig.gamma;\r
1071 printf("updated gamma to %i\n", currentConfig.gamma);\r
1072 }\r
1073\r
1074 fpsbuff[0] = 0;\r
1075\r
1076 // make sure we are in correct mode\r
1077 vidResetMode();\r
e11c5548 1078 Pico.m.dirtyPal = 1;\r
cc68a136 1079 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
1080 find_combos();\r
1081\r
1082 // pal/ntsc might have changed, reset related stuff\r
1083 target_fps = Pico.m.pal ? 50 : 60;\r
1084 target_frametime = 1000000/target_fps;\r
1085 reset_timing = 1;\r
1086\r
1087 // prepare sound stuff\r
1088 if(currentConfig.EmuOpt & 4) {\r
7a93adeb 1089 int snd_excess_add;\r
cc68a136 1090 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
1091 /* if 940 is turned off, we need it to be put back to sleep */\r
1092 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
b837b69b 1093 Reset940(1, 2);\r
cc68a136 1094 Pause940(1);\r
1095 }\r
7a93adeb 1096 sound_rerate(1);\r
cc68a136 1097 }\r
1098 //excess_samples = PsndRate - PsndLen*target_fps;\r
cc68a136 1099 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1100 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
1101 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
1102 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
1103 PicoWriteSound = updateSound;\r
7a93adeb 1104 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1105 PsndOut = sndBuffer;\r
cc68a136 1106 PsndRate_old = PsndRate;\r
1107 PsndLen_real = PsndLen;\r
1108 PicoOpt_old = PicoOpt;\r
1109 pal_old = Pico.m.pal;\r
1110 } else {\r
1111 PsndOut = 0;\r
1112 }\r
1113\r
0a051f55 1114 // prepare CD buffer\r
1115 if (PicoMCD & 1) PicoCDBufferInit();\r
1116\r
cc68a136 1117 // loop?\r
1118 while (engineState == PGS_Running)\r
1119 {\r
1120 int modes;\r
1121\r
1122 gettimeofday(&tval, 0);\r
1123 if(reset_timing) {\r
1124 reset_timing = 0;\r
1125 thissec = tval.tv_sec;\r
1126 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
1127 }\r
1128\r
1129 // show notice message?\r
1130 if(noticeMsgTime.tv_sec) {\r
1131 static int noticeMsgSum;\r
1132 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
1133 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
1134 clearArea(0);\r
1135 notice = 0;\r
1136 } else {\r
1137 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
1138 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
1139 notice = noticeMsg;\r
1140 }\r
1141 }\r
1142\r
1143 // check for mode changes\r
1144 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
1145 if (modes != oldmodes) {\r
1146 int scalex = 320;\r
1147 osd_fps_x = OSD_FPS_X;\r
1148 if (modes & 4) {\r
1149 vidCpyM2 = vidCpyM2_40col;\r
1150 } else {\r
1151 if (PicoOpt & 0x100) {\r
1152 vidCpyM2 = vidCpyM2_32col_nobord;\r
1153 scalex = 256;\r
1154 osd_fps_x = OSD_FPS_X - 64;\r
1155 } else {\r
1156 vidCpyM2 = vidCpyM2_32col;\r
1157 }\r
1158 }\r
2433f409 1159 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
1160 gp2x_video_RGB_setscaling(8, scalex, 224);\r
1161 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
cc68a136 1162 oldmodes = modes;\r
1163 clearArea(1);\r
1164 }\r
1165\r
1166 // second changed?\r
1167 if(thissec != tval.tv_sec) {\r
1168#ifdef BENCHMARK\r
1169 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1170 if(++bench == 10) {\r
1171 bench = 0;\r
1172 bench_fps_s = bench_fps;\r
1173 bf[bfp++ & 3] = bench_fps;\r
1174 bench_fps = 0;\r
1175 }\r
1176 bench_fps += frames_shown;\r
1177 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1178#else\r
1179 if(currentConfig.EmuOpt & 2)\r
1180 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1181#endif\r
1182 thissec = tval.tv_sec;\r
1183\r
1184 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
1185 frames_done = frames_shown = 0;\r
1186 } else {\r
1187 // it is quite common for this implementation to leave 1 fame unfinished\r
1188 // when second changes, but we don't want buffer to starve.\r
1189 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
1190 updateKeys();\r
01bc6b19 1191 SkipFrame(1); frames_done++;\r
cc68a136 1192 }\r
1193\r
1194 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
1195 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
1196 if (frames_shown > frames_done) frames_shown = frames_done;\r
1197 }\r
1198 }\r
2433f409 1199#if 1\r
7a1f6e45 1200 sprintf(fpsbuff, "%05i", Pico.m.frame_count);\r
1201#endif\r
cc68a136 1202 lim_time = (frames_done+1) * target_frametime;\r
1203 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
1204 for(i = 0; i < currentConfig.Frameskip; i++) {\r
1205 updateKeys();\r
01bc6b19 1206 SkipFrame(1); frames_done++;\r
cc68a136 1207 if (PsndOut) { // do framelimitting if sound is enabled\r
1208 gettimeofday(&tval, 0);\r
1209 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1210 if(tval.tv_usec < lim_time) { // we are too fast\r
1211 simpleWait(thissec, lim_time);\r
1212 }\r
1213 }\r
1214 lim_time += target_frametime;\r
1215 }\r
1216 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
1217 // no time left for this frame - skip\r
4ff2d527 1218 if (tval.tv_usec - lim_time >= 0x300000) {\r
1219 /* something caused a slowdown for us (disk access? cache flush?)\r
1220 * try to recover by resetting timing... */\r
1221 reset_timing = 1;\r
1222 continue;\r
1223 }\r
cc68a136 1224 updateKeys();\r
00bd648e 1225 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
cc68a136 1226 continue;\r
1227 }\r
1228\r
1229 updateKeys();\r
1230 PicoFrame();\r
1231\r
312e9ce1 1232#if 0\r
1233if (Pico.m.frame_count == 31563) {\r
1234 FILE *f;\r
1235 f = fopen("ram_p.bin", "wb");\r
1236 if (!f) { printf("!f\n"); exit(1); }\r
1237 fwrite(Pico.ram, 1, 0x10000, f);\r
1238 fclose(f);\r
1239 exit(0);\r
1240}\r
1241#endif\r
4f672280 1242#if 0\r
1243 // debug\r
1244 {\r
312e9ce1 1245 #define BYTE unsigned char\r
1246 #define WORD unsigned short\r
1247 struct\r
1248 {\r
1249 BYTE IDLength; /* 00h Size of Image ID field */\r
1250 BYTE ColorMapType; /* 01h Color map type */\r
1251 BYTE ImageType; /* 02h Image type code */\r
1252 WORD CMapStart; /* 03h Color map origin */\r
1253 WORD CMapLength; /* 05h Color map length */\r
1254 BYTE CMapDepth; /* 07h Depth of color map entries */\r
1255 WORD XOffset; /* 08h X origin of image */\r
1256 WORD YOffset; /* 0Ah Y origin of image */\r
1257 WORD Width; /* 0Ch Width of image */\r
1258 WORD Height; /* 0Eh Height of image */\r
1259 BYTE PixelDepth; /* 10h Image pixel size */\r
1260 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
1261 } __attribute__((packed)) TGAHEAD;\r
1262 static unsigned short oldscr[320*240];\r
4f672280 1263 FILE *f; char name[128]; int i;\r
312e9ce1 1264\r
1265 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
1266 TGAHEAD.ImageType = 2;\r
1267 TGAHEAD.Width = 320;\r
1268 TGAHEAD.Height = 240;\r
1269 TGAHEAD.PixelDepth = 16;\r
1270 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
1271\r
1272 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
1273\r
1274 for (i = 0; i < 320*240; i++)\r
1275 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
1276 if (i < 320*240)\r
4f672280 1277 {\r
312e9ce1 1278 for (i = 0; i < 320*240; i++)\r
1279 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
1280 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
4f672280 1281 f = fopen(name, "wb");\r
1282 if (!f) { printf("!f\n"); exit(1); }\r
312e9ce1 1283 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
1284 fwrite(oldscr, 1, 320*240*2, f);\r
4f672280 1285 fclose(f);\r
1286 }\r
1287 }\r
1288#endif\r
1289\r
cc68a136 1290 // check time\r
1291 gettimeofday(&tval, 0);\r
4ff2d527 1292 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
cc68a136 1293\r
4ff2d527 1294 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 0x300000) // slowdown detection\r
1295 reset_timing = 1;\r
1296 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
cc68a136 1297 {\r
4ff2d527 1298 // sleep if we are still too fast\r
cc68a136 1299 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
cc68a136 1300 if(tval.tv_usec < lim_time)\r
1301 {\r
1302 // we are too fast\r
1303 simpleWait(thissec, lim_time);\r
1304 }\r
1305 }\r
1306\r
1307 blit(fpsbuff, notice);\r
1308\r
1309 frames_done++; frames_shown++;\r
1310 }\r
1311\r
0a051f55 1312\r
1313 if (PicoMCD & 1) PicoCDBufferFree();\r
1314\r
cc68a136 1315 // save SRAM\r
1316 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
76276b0b 1317 osd_text(4, 232, "Writing SRAM/BRAM..");\r
cc68a136 1318 emu_SaveLoadGame(0, 1);\r
1319 SRam.changed = 0;\r
1320 }\r
e11c5548 1321\r
1322 // if in 16bit mode, generate 8it image for menu background\r
860c6322 1323 if (!(PicoOpt&0x10) && (currentConfig.EmuOpt&0x80))\r
1324 emu_forced_frame();\r
76276b0b 1325\r
1326 // for menu bg\r
860c6322 1327 gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);\r
cc68a136 1328}\r
1329\r
1330\r
1331void emu_ResetGame(void)\r
1332{\r
1333 PicoReset(0);\r
1334 reset_timing = 1;\r
1335}\r
1336\r
1337\r
1338size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1339{\r
1340 return gzread(file, p, _n);\r
1341}\r
1342\r
1343\r
1344size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1345{\r
1346 return gzwrite(file, p, _n);\r
1347}\r
1348\r
860c6322 1349static int try_ropen_file(const char *fname)\r
1350{\r
1351 FILE *f;\r
1352\r
1353 f = fopen(fname, "rb");\r
1354 if (f) {\r
1355 fclose(f);\r
1356 return 1;\r
1357 }\r
1358 return 0;\r
1359}\r
1360\r
1361char *emu_GetSaveFName(int load, int is_sram, int slot)\r
1362{\r
1363 static char saveFname[512];\r
1364 char ext[16];\r
1365\r
1366 if (is_sram)\r
1367 {\r
1368 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
1369 if (load) {\r
1370 if (try_ropen_file(saveFname)) return saveFname;\r
1371 // try in current dir..\r
1372 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
1373 if (try_ropen_file(saveFname)) return saveFname;\r
1374 return NULL; // give up\r
1375 }\r
1376 }\r
1377 else\r
1378 {\r
1379 ext[0] = 0;\r
1380 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1381 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
1382\r
1383 romfname_ext(saveFname, "mds/", ext);\r
1384 if (load) {\r
1385 if (try_ropen_file(saveFname)) return saveFname;\r
1386 romfname_ext(saveFname, NULL, ext);\r
1387 if (try_ropen_file(saveFname)) return saveFname;\r
1388 if (currentConfig.EmuOpt & 8) {\r
1389 ext[0] = 0;\r
1390 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1391 strcat(ext, ".mds");\r
1392\r
1393 romfname_ext(saveFname, "mds/", ext);\r
1394 if (try_ropen_file(saveFname)) return saveFname;\r
1395 romfname_ext(saveFname, NULL, ext);\r
1396 if (try_ropen_file(saveFname)) return saveFname;\r
1397 }\r
1398 return NULL;\r
1399 }\r
1400 }\r
1401\r
1402 return saveFname;\r
1403}\r
1404\r
1405int emu_check_save_file(int slot)\r
1406{\r
1407 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
1408}\r
1409\r
1410void emu_set_save_cbs(int gz)\r
1411{\r
1412 if (gz) {\r
1413 areaRead = gzRead2;\r
1414 areaWrite = gzWrite2;\r
1415 areaEof = (areaeof *) gzeof;\r
1416 areaSeek = (areaseek *) gzseek;\r
1417 areaClose = (areaclose *) gzclose;\r
1418 } else {\r
1419 areaRead = (arearw *) fread;\r
1420 areaWrite = (arearw *) fwrite;\r
1421 areaEof = (areaeof *) feof;\r
1422 areaSeek = (areaseek *) fseek;\r
1423 areaClose = (areaclose *) fclose;\r
1424 }\r
1425}\r
cc68a136 1426\r
1427int emu_SaveLoadGame(int load, int sram)\r
1428{\r
1429 int ret = 0;\r
860c6322 1430 char *saveFname;\r
cc68a136 1431\r
1432 // make save filename\r
860c6322 1433 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
1434 if (saveFname == NULL) {\r
68cba51e 1435 if (!sram) {\r
1436 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
1437 gettimeofday(&noticeMsgTime, 0);\r
1438 }\r
860c6322 1439 return -1;\r
cc68a136 1440 }\r
1441\r
1442 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1443\r
1444 if(sram) {\r
1445 FILE *sramFile;\r
ab0607f7 1446 int sram_size;\r
1447 unsigned char *sram_data;\r
1448 if (PicoMCD&1) {\r
1449 sram_size = 0x2000;\r
1450 sram_data = Pico_mcd->bram;\r
1451 } else {\r
1452 sram_size = SRam.end-SRam.start+1;\r
1453 if(SRam.reg_back & 4) sram_size=0x2000;\r
1454 sram_data = SRam.data;\r
1455 }\r
1456 if(!sram_data) return 0; // SRam forcefully disabled for this game\r
1457\r
cc68a136 1458 if(load) {\r
1459 sramFile = fopen(saveFname, "rb");\r
1460 if(!sramFile) return -1;\r
ab0607f7 1461 fread(sram_data, 1, sram_size, sramFile);\r
cc68a136 1462 fclose(sramFile);\r
1463 } else {\r
1464 // sram save needs some special processing\r
1465 // see if we have anything to save\r
1466 for(; sram_size > 0; sram_size--)\r
ab0607f7 1467 if(sram_data[sram_size-1]) break;\r
cc68a136 1468\r
1469 if(sram_size) {\r
1470 sramFile = fopen(saveFname, "wb");\r
ab0607f7 1471 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
cc68a136 1472 ret = (ret != sram_size) ? -1 : 0;\r
1473 fclose(sramFile);\r
2433f409 1474#ifndef NO_SYNC\r
cc68a136 1475 sync();\r
2433f409 1476#endif\r
cc68a136 1477 }\r
1478 }\r
1479 return ret;\r
ab0607f7 1480 }\r
1481 else\r
1482 {\r
cc68a136 1483 void *PmovFile = NULL;\r
860c6322 1484 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
cc68a136 1485 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
860c6322 1486 emu_set_save_cbs(1);\r
cc68a136 1487 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
860c6322 1488 }\r
cc68a136 1489 }\r
860c6322 1490 else\r
1491 {\r
cc68a136 1492 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
860c6322 1493 emu_set_save_cbs(0);\r
cc68a136 1494 }\r
1495 }\r
1496 if(PmovFile) {\r
75736070 1497 ret = PmovState(load ? 6 : 5, PmovFile);\r
860c6322 1498 areaClose(PmovFile);\r
cc68a136 1499 PmovFile = 0;\r
2433f409 1500 if (load) Pico.m.dirtyPal=1;\r
1501#ifndef NO_SYNC\r
1502 else sync();\r
1503#endif\r
75736070 1504 }\r
1505 else ret = -1;\r
1506 if (!ret)\r
1507 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
1508 else\r
1509 {\r
cc68a136 1510 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
1511 ret = -1;\r
1512 }\r
1513\r
1514 gettimeofday(&noticeMsgTime, 0);\r
1515 return ret;\r
1516 }\r
1517}\r
fast MegaDrive/MegaCD/32X emulator