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bugfixes, CD swap, autorepeat
[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
8f1b51ef 57static int osd_fps_x;\r
720ee7f6 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
8f1b51ef 64int reset_timing = 0;\r
720ee7f6 65\r
720ee7f6 66\r
720ee7f6 67// utilities\r
68static void strlwr(char* string)\r
69{\r
70 while ( (*string++ = (char)tolower(*string)) );\r
71}\r
72\r
5111820c 73static int try_rfn_cut(void)\r
720ee7f6 74{\r
75 FILE *tmp;\r
76 char *p;\r
77\r
5111820c 78 p = romFileName + strlen(romFileName) - 1;\r
79 for (; p > romFileName; p--)\r
80 if (*p == '.') break;\r
81 *p = 0;\r
720ee7f6 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
daf91588 90static void get_ext(char *file, char *ext)\r
25fced50 91{\r
92 char *p;\r
93\r
daf91588 94 p = file + strlen(file) - 4;\r
95 if (p < file) p = file;\r
25fced50 96 strncpy(ext, p, 4);\r
97 ext[4] = 0;\r
98 strlwr(ext);\r
99}\r
100\r
daf91588 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
5e2e14f2 159int emu_cd_check(char **bios_file)\r
daf91588 160{\r
161 unsigned char buf[32];\r
af6e9c49 162 pm_file *cd_f;\r
daf91588 163 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
164\r
af6e9c49 165 cd_f = pm_open(romFileName);\r
daf91588 166 if (!cd_f) return 0; // let the upper level handle this\r
167\r
af6e9c49 168 if (pm_read(buf, 32, cd_f) != 32) {\r
169 pm_close(cd_f);\r
daf91588 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
af6e9c49 176 pm_close(cd_f);\r
daf91588 177 return 0;\r
178 }\r
179\r
5e2e14f2 180 /* it seems we have a CD image here. Try to detect region now.. */\r
af6e9c49 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
daf91588 184\r
598e7c06 185 if (buf[0] == 0x64) region = 8; // EU\r
daf91588 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
5e2e14f2 196 if (bios_file == NULL) return type;\r
197\r
198 if (find_bios(region, bios_file))\r
daf91588 199 return type; // CD and BIOS detected\r
200\r
201 return -1; // CD detected but load failed\r
202}\r
203\r
720ee7f6 204int emu_ReloadRom(void)\r
205{\r
206 unsigned int rom_size = 0;\r
daf91588 207 char *used_rom_name = romFileName;\r
25fced50 208 char ext[5];\r
af6e9c49 209 pm_file *rom;\r
daf91588 210 int ret, cd_state;\r
720ee7f6 211\r
212 printf("emu_ReloadRom(%s)\n", romFileName);\r
213\r
daf91588 214 get_ext(romFileName, ext);\r
720ee7f6 215\r
daf91588 216 // detect wrong extensions\r
720ee7f6 217 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
218 sprintf(menuErrorMsg, "Not a ROM selected.");\r
219 return 0;\r
220 }\r
221\r
70d2ecc5 222 PicoPatchUnload();\r
223\r
720ee7f6 224 // check for movie file\r
225 if(movie_data) {\r
226 free(movie_data);\r
227 movie_data = 0;\r
228 }\r
229 if(!strcmp(ext, ".gmv")) {\r
230 // check for both gmv and rom\r
231 int dummy;\r
232 FILE *movie_file = fopen(romFileName, "rb");\r
233 if(!movie_file) {\r
234 sprintf(menuErrorMsg, "Failed to open movie.");\r
235 return 0;\r
236 }\r
237 fseek(movie_file, 0, SEEK_END);\r
238 movie_size = ftell(movie_file);\r
239 fseek(movie_file, 0, SEEK_SET);\r
240 if(movie_size < 64+3) {\r
241 sprintf(menuErrorMsg, "Invalid GMV file.");\r
242 fclose(movie_file);\r
243 return 0;\r
244 }\r
245 movie_data = malloc(movie_size);\r
246 if(movie_data == NULL) {\r
247 sprintf(menuErrorMsg, "low memory.");\r
248 fclose(movie_file);\r
249 return 0;\r
250 }\r
251 fread(movie_data, 1, movie_size, movie_file);\r
252 fclose(movie_file);\r
253 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
254 sprintf(menuErrorMsg, "Invalid GMV file.");\r
255 return 0;\r
256 }\r
5111820c 257 dummy = try_rfn_cut() || try_rfn_cut();\r
720ee7f6 258 if (!dummy) {\r
259 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
260 return 0;\r
261 }\r
daf91588 262 get_ext(romFileName, ext);\r
720ee7f6 263 }\r
70d2ecc5 264 else if (!strcmp(ext, ".pat")) {\r
265 int dummy;\r
266 PicoPatchLoad(romFileName);\r
267 dummy = try_rfn_cut() || try_rfn_cut();\r
268 if (!dummy) {\r
269 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
270 return 0;\r
271 }\r
272 get_ext(romFileName, ext);\r
273 }\r
720ee7f6 274\r
daf91588 275 // check for MegaCD image\r
5e2e14f2 276 cd_state = emu_cd_check(&used_rom_name);\r
daf91588 277 if (cd_state > 0) {\r
278 PicoMCD |= 1;\r
279 get_ext(used_rom_name, ext);\r
280 } else if (cd_state == -1) {\r
281 // bios_help() ?\r
282 return 0;\r
283 } else {\r
49fe50f0 284 if (PicoMCD & 1) PicoExitMCD();\r
daf91588 285 PicoMCD &= ~1;\r
286 }\r
287\r
af6e9c49 288 rom = pm_open(used_rom_name);\r
720ee7f6 289 if(!rom) {\r
290 sprintf(menuErrorMsg, "Failed to open rom.");\r
291 return 0;\r
292 }\r
293\r
294 if(rom_data) {\r
295 free(rom_data);\r
296 rom_data = 0;\r
297 rom_size = 0;\r
298 }\r
299\r
af6e9c49 300 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
301 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
302 printf("%s\n", menuErrorMsg);\r
303 pm_close(rom);\r
304 return 0;\r
720ee7f6 305 }\r
af6e9c49 306 pm_close(rom);\r
720ee7f6 307\r
308 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
309 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
310 ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
311 if (rom_data) free(rom_data);\r
312 rom_data = 0;\r
313 sprintf(menuErrorMsg, "Not a ROM selected.");\r
314 return 0;\r
315 }\r
316\r
daf91588 317 // load config for this ROM (do this before insert to get correct region)\r
318 ret = emu_ReadConfig(1);\r
319 if (!ret)\r
320 emu_ReadConfig(0);\r
321\r
720ee7f6 322 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
323 if(PicoCartInsert(rom_data, rom_size)) {\r
324 sprintf(menuErrorMsg, "Failed to load ROM.");\r
325 return 0;\r
326 }\r
327\r
daf91588 328 Pico.m.frame_count = 0;\r
329\r
330 // insert CD if it was detected\r
331 if (cd_state > 0) {\r
332 ret = Insert_CD(romFileName, cd_state == 2);\r
333 if (ret != 0) {\r
334 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
335 printf("%s\n", menuErrorMsg);\r
336 return 0;\r
337 }\r
338 }\r
720ee7f6 339\r
340 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
341 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
342 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
343\r
70d2ecc5 344 if (PicoPatches) {\r
345 PicoPatchPrepare();\r
346 PicoPatchApply();\r
347 }\r
348\r
720ee7f6 349 // additional movie stuff\r
350 if(movie_data) {\r
351 if(movie_data[0x14] == '6')\r
352 PicoOpt |= 0x20; // 6 button pad\r
353 else PicoOpt &= ~0x20;\r
1a20dbc8 354 PicoOpt |= 0x40; // accurate timing\r
720ee7f6 355 if(movie_data[0xF] >= 'A') {\r
1a20dbc8 356 if(movie_data[0x16] & 0x80) {\r
357 PicoRegionOverride = 8;\r
358 } else {\r
359 PicoRegionOverride = 4;\r
360 }\r
361 PicoReset(0);\r
720ee7f6 362 // TODO: bits 6 & 5\r
363 }\r
1a20dbc8 364 movie_data[0x18+30] = 0;\r
365 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
720ee7f6 366 }\r
367 else\r
368 {\r
369 if(Pico.m.pal) {\r
370 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
371 } else {\r
372 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
373 }\r
374 }\r
375 gettimeofday(&noticeMsgTime, 0);\r
49fe50f0 376\r
720ee7f6 377 // load SRAM for this ROM\r
378 if(currentConfig.EmuOpt & 1)\r
379 emu_SaveLoadGame(1, 1);\r
380\r
720ee7f6 381 return 1;\r
382}\r
383\r
384\r
dfa4c846 385static void emu_msg_cb(const char *msg);\r
5e2e14f2 386static void emu_msg_tray_open(void);\r
dfa4c846 387\r
720ee7f6 388void emu_Init(void)\r
389{\r
390 // make temp buffer for alt renderer\r
391 framebuff = malloc((8+320)*(8+240+8));\r
392 if (!framebuff)\r
393 {\r
394 printf("framebuff == 0\n");\r
395 }\r
396\r
4ffd2858 397 // make dirs for saves, cfgs, etc.\r
398 mkdir("mds", 0777);\r
399 mkdir("srm", 0777);\r
400 mkdir("brm", 0777);\r
401 mkdir("cfg", 0777);\r
402\r
720ee7f6 403 PicoInit();\r
dfa4c846 404 PicoMessage = emu_msg_cb;\r
5e2e14f2 405 PicoMCDopenTray = emu_msg_tray_open;\r
406 PicoMCDcloseTray = menu_loop_tray;\r
720ee7f6 407}\r
408\r
409\r
4ffd2858 410static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
720ee7f6 411{\r
412 char *p;\r
4ffd2858 413 int prefix_len = 0;\r
720ee7f6 414\r
415 // make save filename\r
416 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
4ffd2858 417 *dst = 0;\r
418 if (prefix) {\r
419 strcpy(dst, prefix);\r
420 prefix_len = strlen(prefix);\r
421 }\r
422 strncpy(dst + prefix_len, p, 511-prefix_len);\r
720ee7f6 423 dst[511-8] = 0;\r
4ffd2858 424 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
425 if (ext) strcat(dst, ext);\r
720ee7f6 426}\r
427\r
428\r
429static void find_combos(void)\r
430{\r
431 int act, u;\r
432\r
433 // find out which keys and actions are combos\r
434 combo_keys = combo_acts = 0;\r
435 for (act = 0; act < 32; act++)\r
436 {\r
437 int keyc = 0;\r
438 if (act == 16) continue; // player2 flag\r
439 for (u = 0; u < 32; u++)\r
440 {\r
441 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
442 }\r
443 if (keyc > 1)\r
444 {\r
445 // loop again and mark those keys and actions as combo\r
446 for (u = 0; u < 32; u++)\r
447 {\r
448 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
449 combo_keys |= 1 << u;\r
450 combo_acts |= 1 << act;\r
451 }\r
452 }\r
453 }\r
454 }\r
455 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
456}\r
457\r
458\r
79cad122 459void scaling_update(void)\r
460{\r
461 PicoOpt &= ~0x4100;\r
462 switch (currentConfig.scaling) {\r
463 default: break; // off\r
464 case 1: // hw hor\r
465 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
466 case 3: PicoOpt |= 0x4000; break; // sw hor\r
467 }\r
468}\r
469\r
470\r
720ee7f6 471int emu_ReadConfig(int game)\r
472{\r
473 FILE *f;\r
474 char cfg[512];\r
475 int bread = 0;\r
476\r
477 if (!game)\r
478 {\r
479 // set default config\r
480 memset(&currentConfig, 0, sizeof(currentConfig));\r
481 currentConfig.lastRomFile[0] = 0;\r
49fe50f0 482 currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds\r
483 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda\r
7bc9cd7f 484 currentConfig.PsndRate = 22050; // 44100;\r
720ee7f6 485 currentConfig.PicoRegion = 0; // auto\r
979ba09f 486 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
720ee7f6 487 currentConfig.Frameskip = -1; // auto\r
488 currentConfig.CPUclock = 200;\r
489 currentConfig.volume = 50;\r
490 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
491 currentConfig.KeyBinds[ 4] = 1<<1;\r
492 currentConfig.KeyBinds[ 2] = 1<<2;\r
493 currentConfig.KeyBinds[ 6] = 1<<3;\r
494 currentConfig.KeyBinds[14] = 1<<4;\r
495 currentConfig.KeyBinds[13] = 1<<5;\r
496 currentConfig.KeyBinds[12] = 1<<6;\r
497 currentConfig.KeyBinds[ 8] = 1<<7;\r
498 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
499 currentConfig.KeyBinds[10] = 1<<27; // save state\r
500 currentConfig.KeyBinds[11] = 1<<28; // load state\r
501 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
502 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
503 currentConfig.gamma = 100;\r
5f9922e6 504 currentConfig.PicoCDBuffers = 64;\r
79cad122 505 currentConfig.scaling = 0;\r
720ee7f6 506 strncpy(cfg, PicoConfigFile, 511);\r
507 cfg[511] = 0;\r
508 } else {\r
4ffd2858 509 romfname_ext(cfg, "cfg/", ".pbcfg");\r
510 f = fopen(cfg, "rb");\r
511 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
512 else fclose(f);\r
720ee7f6 513 }\r
514\r
515 printf("emu_ReadConfig: %s ", cfg);\r
516 f = fopen(cfg, "rb");\r
517 if (f) {\r
518 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
519 fclose(f);\r
520 }\r
79cad122 521 printf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
720ee7f6 522\r
523 PicoOpt = currentConfig.PicoOpt;\r
524 PsndRate = currentConfig.PsndRate;\r
525 PicoRegionOverride = currentConfig.PicoRegion;\r
979ba09f 526 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
5f9922e6 527 PicoCDBuffers = currentConfig.PicoCDBuffers;\r
720ee7f6 528 if (PicoOpt & 0x20) {\r
529 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";\r
530 actionNames[10] = "X"; actionNames[11] = "MODE";\r
531 }\r
79cad122 532 scaling_update();\r
720ee7f6 533 // some sanity checks\r
5e2e14f2 534 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
720ee7f6 535 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
5e2e14f2 536 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
720ee7f6 537 // if volume keys are unbound, bind them to volume control\r
538 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
539 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
540 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
541 }\r
542\r
79cad122 543 return (bread > 0); // == sizeof(currentConfig));\r
720ee7f6 544}\r
545\r
546\r
547int emu_WriteConfig(int game)\r
548{\r
549 FILE *f;\r
550 char cfg[512];\r
551 int bwrite = 0;\r
552\r
553 if (!game)\r
554 {\r
555 strncpy(cfg, PicoConfigFile, 511);\r
556 cfg[511] = 0;\r
557 } else {\r
2fb6c387 558 romfname_ext(cfg, "cfg/", ".pbcfg");\r
720ee7f6 559 }\r
560\r
561 printf("emu_WriteConfig: %s ", cfg);\r
562 f = fopen(cfg, "wb");\r
563 if (f) {\r
564 currentConfig.PicoOpt = PicoOpt;\r
565 currentConfig.PsndRate = PsndRate;\r
566 currentConfig.PicoRegion = PicoRegionOverride;\r
979ba09f 567 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
5f9922e6 568 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
720ee7f6 569 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
570 fflush(f);\r
571 fclose(f);\r
79cad122 572#ifndef NO_SYNC\r
720ee7f6 573 sync();\r
79cad122 574#endif\r
720ee7f6 575 }\r
576 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
577\r
578 return (bwrite == sizeof(currentConfig));\r
579}\r
580\r
581\r
582void emu_Deinit(void)\r
583{\r
584 // save SRAM\r
585 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
586 emu_SaveLoadGame(0, 1);\r
587 SRam.changed = 0;\r
588 }\r
589\r
79cad122 590 if (!(currentConfig.EmuOpt & 0x20)) {\r
591 FILE *f = fopen(PicoConfigFile, "r+b");\r
592 if (!f) emu_WriteConfig(0);\r
593 else {\r
594 // if we already have config, reload it, except last ROM\r
595 fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);\r
596 fread(&currentConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);\r
597 fseek(f, 0, SEEK_SET);\r
598 fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
599 fflush(f);\r
600 fclose(f);\r
601#ifndef NO_SYNC\r
602 sync();\r
603#endif\r
604 }\r
605 }\r
606\r
720ee7f6 607 free(framebuff);\r
608\r
609 PicoExit();\r
720ee7f6 610\r
611 // restore gamma\r
612 if (gp2x_old_gamma != 100)\r
613 set_gamma(100);\r
614}\r
615\r
616\r
0805b5b4 617void osd_text(int x, int y, const char *text)\r
720ee7f6 618{\r
619 int len = strlen(text)*8;\r
620\r
621 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
daf91588 622 int *p, i, h;\r
720ee7f6 623 x &= ~3; // align x\r
624 len = (len+3) >> 2;\r
625 for (h = 0; h < 8; h++) {\r
626 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
daf91588 627 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
720ee7f6 628 }\r
daf91588 629 gp2x_text_out8_2(x, y, text, 0xf0);\r
720ee7f6 630 } else {\r
631 int *p, i, h;\r
632 x &= ~1; // align x\r
633 len = (len+1) >> 1;\r
634 for (h = 0; h < 8; h++) {\r
635 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
636 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
637 }\r
638 gp2x_text_out15(x, y, text);\r
639 }\r
640}\r
641\r
daf91588 642static void cd_leds(void)\r
643{\r
8dfb9fd5 644 // mmu problems?\r
645// static\r
646 int old_reg;\r
647// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
daf91588 648 old_reg = Pico_mcd->s68k_regs[0];\r
649\r
650 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
651 // 8-bit modes\r
652 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
653 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
49fe50f0 654 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
655 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
656 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
657 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
658 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
659 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
daf91588 660 } else {\r
661 // 16-bit modes\r
49fe50f0 662 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
daf91588 663 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
664 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 665 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
666 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
667 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
daf91588 668 }\r
669}\r
670\r
720ee7f6 671static int EmuScan16(unsigned int num, void *sdata)\r
672{\r
673 if (!(Pico.video.reg[1]&8)) num += 8;\r
674 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
675\r
676 return 0;\r
677}\r
678\r
679static int EmuScan8(unsigned int num, void *sdata)\r
680{\r
681 if (!(Pico.video.reg[1]&8)) num += 8;\r
682 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
683\r
684 return 0;\r
685}\r
686\r
e5d315a5 687int localPal[0x100];\r
720ee7f6 688static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
689\r
0805b5b4 690static void blit(const char *fps, const char *notice)\r
720ee7f6 691{\r
daf91588 692 int emu_opt = currentConfig.EmuOpt;\r
693\r
720ee7f6 694 if (PicoOpt&0x10) {\r
695 // 8bit fast renderer\r
696 if (Pico.m.dirtyPal) {\r
697 Pico.m.dirtyPal = 0;\r
698 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
699 // feed new palette to our device\r
700 gp2x_video_setpalette(localPal, 0x40);\r
701 }\r
702 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
daf91588 703 } else if (!(emu_opt&0x80)) {\r
720ee7f6 704 // 8bit accurate renderer\r
705 if (Pico.m.dirtyPal) {\r
706 Pico.m.dirtyPal = 0;\r
707 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
708 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
709 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
710 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
711 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
daf91588 712 localPal[0xc0] = 0x0000c000;\r
713 localPal[0xd0] = 0x00c00000;\r
720ee7f6 714 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
715 localPal[0xf0] = 0x00ffffff;\r
716 gp2x_video_setpalette(localPal, 0x100);\r
717 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
718 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
719 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
720 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
721 gp2x_video_setpalette(localPal, 0xc0);\r
722 } else {\r
723 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
724 gp2x_video_setpalette(localPal, 0x40);\r
725 }\r
726 }\r
727 }\r
728\r
79cad122 729 if (notice || (emu_opt & 2)) {\r
730 int h = 232;\r
731 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
732 if (notice) osd_text(4, h, notice);\r
733 if (emu_opt & 2)\r
734 osd_text(osd_fps_x, h, fps);\r
735 }\r
daf91588 736 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
737 cd_leds();\r
720ee7f6 738\r
739 //gp2x_video_wait_vsync();\r
740 gp2x_video_flip();\r
741\r
742 if (!(PicoOpt&0x10)) {\r
743 if (!(Pico.video.reg[1]&8)) {\r
744 if (currentConfig.EmuOpt&0x80) {\r
745 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
746 } else {\r
747 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
748 }\r
749 } else {\r
750 DrawLineDest = gp2x_screen;\r
751 }\r
752 }\r
753}\r
754\r
755\r
756// clears whole screen or just the notice area (in all buffers)\r
757static void clearArea(int full)\r
758{\r
daf91588 759 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
760 // 8-bit renderers\r
761 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
762 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
763 } else {\r
720ee7f6 764 // 16bit accurate renderer\r
765 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
766 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 767 }\r
768}\r
769\r
770\r
771static void vidResetMode(void)\r
772{\r
773 if (PicoOpt&0x10) {\r
720ee7f6 774 gp2x_video_changemode(8);\r
720ee7f6 775 } else if (currentConfig.EmuOpt&0x80) {\r
776 gp2x_video_changemode(15);\r
777 PicoDrawSetColorFormat(1);\r
778 PicoScan = EmuScan16;\r
779 PicoScan(0, 0);\r
780 } else {\r
daf91588 781 gp2x_video_changemode(8);\r
782 PicoDrawSetColorFormat(2);\r
783 PicoScan = EmuScan8;\r
784 PicoScan(0, 0);\r
785 }\r
786 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
787 // setup pal for 8-bit modes\r
788 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
789 localPal[0xd0] = 0x00c00000;\r
720ee7f6 790 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
791 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 792 gp2x_video_setpalette(localPal, 0x100);\r
793 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
794 gp2x_video_flip();\r
720ee7f6 795 }\r
796 Pico.m.dirtyPal = 1;\r
797 // reset scaling\r
79cad122 798 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
799 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
800 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
720ee7f6 801}\r
802\r
803\r
dfa4c846 804static void emu_msg_cb(const char *msg)\r
805{\r
806 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
807 // 8-bit renderers\r
808 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
809 osd_text(4, 232, msg);\r
810 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
811 } else {\r
812 // 16bit accurate renderer\r
813 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
814 osd_text(4, 232, msg);\r
815 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
816 }\r
817 gettimeofday(&noticeMsgTime, 0);\r
818 noticeMsgTime.tv_sec -= 2;\r
e5589947 819\r
820 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
821 reset_timing = 1;\r
dfa4c846 822}\r
823\r
1078e544 824static void emu_state_cb(const char *str)\r
825{\r
826 clearArea(0);\r
827 blit("", str);\r
828}\r
829\r
5e2e14f2 830static void emu_msg_tray_open(void)\r
831{\r
832 strcpy(noticeMsg, "CD tray opened");\r
833 gettimeofday(&noticeMsgTime, 0);\r
834}\r
835\r
720ee7f6 836static void RunEvents(unsigned int which)\r
837{\r
838 if(which & 0x1800) { // save or load (but not both)\r
839 int do_it = 1;\r
4ffd2858 840 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && emu_check_save_file(state_slot)) {\r
720ee7f6 841 unsigned long keys;\r
842 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");\r
843 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
844 usleep(50*1024);\r
845 if (keys & GP2X_X) do_it = 0;\r
846 clearArea(0);\r
847 }\r
848 if (do_it) {\r
0805b5b4 849 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
1078e544 850 PicoStateProgressCB = emu_state_cb;\r
851 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
0805b5b4 852 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
1078e544 853 PicoStateProgressCB = NULL;\r
720ee7f6 854 }\r
855\r
856 reset_timing = 1;\r
857 }\r
858 if(which & 0x0400) { // switch renderer\r
859 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
860 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
861 else currentConfig.EmuOpt &= ~0x80;\r
862\r
863 vidResetMode();\r
864\r
865 if (PicoOpt&0x10) {\r
866 strcpy(noticeMsg, " 8bit fast renderer");\r
867 } else if (currentConfig.EmuOpt&0x80) {\r
868 strcpy(noticeMsg, "16bit accurate renderer");\r
869 } else {\r
870 strcpy(noticeMsg, " 8bit accurate renderer");\r
871 }\r
872\r
873 gettimeofday(&noticeMsgTime, 0);\r
874 }\r
875 if(which & 0x0300) {\r
876 if(which&0x0200) {\r
877 state_slot -= 1;\r
878 if(state_slot < 0) state_slot = 9;\r
879 } else {\r
880 state_slot += 1;\r
881 if(state_slot > 9) state_slot = 0;\r
882 }\r
4ffd2858 883 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
720ee7f6 884 gettimeofday(&noticeMsgTime, 0);\r
885 }\r
886 if(which & 0x0080) {\r
887 engineState = PGS_Menu;\r
888 }\r
889}\r
890\r
891\r
25fced50 892static void updateMovie(void)\r
893{\r
894 int offs = Pico.m.frame_count*3 + 0x40;\r
895 if (offs+3 > movie_size) {\r
896 free(movie_data);\r
897 movie_data = 0;\r
898 strcpy(noticeMsg, "END OF MOVIE.");\r
899 printf("END OF MOVIE.\n");\r
900 gettimeofday(&noticeMsgTime, 0);\r
901 } else {\r
902 // MXYZ SACB RLDU\r
903 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
904 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
905 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
906 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
907 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
908 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
909 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
910 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
911 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
912 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
913 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
914 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
915 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
916 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
917 }\r
918}\r
919\r
920\r
720ee7f6 921static void updateKeys(void)\r
922{\r
923 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
924 static unsigned long prevEvents = 0;\r
925 int joy, i;\r
926\r
927 keys = gp2x_joystick_read(0);\r
928 if (keys & GP2X_SELECT) {\r
929 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
930 // wait until select is released, so menu would not resume game\r
931 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
932 }\r
933\r
934 keys &= CONFIGURABLE_KEYS;\r
935\r
936 for (i = 0; i < 32; i++)\r
937 {\r
938 if (keys & (1 << i)) {\r
939 int pl, acts = currentConfig.KeyBinds[i];\r
940 if (!acts) continue;\r
941 pl = (acts >> 16) & 1;\r
942 if (combo_keys & (1 << i)) {\r
943 int u = i+1, acts_c = acts & combo_acts;\r
944 // let's try to find the other one\r
945 if (acts_c)\r
946 for (; u < 32; u++)\r
947 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
948 allActions[pl] |= acts_c;\r
949 keys &= ~((1 << i) | (1 << u));\r
950 break;\r
951 }\r
952 // add non-combo actions if combo ones were not found\r
953 if (!acts_c || u == 32)\r
954 allActions[pl] |= acts & ~combo_acts;\r
955 } else {\r
956 allActions[pl] |= acts;\r
957 }\r
958 }\r
959 }\r
960\r
961 // add joy inputs\r
962 if (num_of_joys > 0)\r
963 {\r
964 gp2x_usbjoy_update();\r
965 for (joy = 0; joy < num_of_joys; joy++) {\r
966 int keys = gp2x_usbjoy_check2(joy);\r
967 for (i = 0; i < 32; i++) {\r
968 if (keys & (1 << i)) {\r
969 int acts = currentConfig.JoyBinds[joy][i];\r
970 int pl = (acts >> 16) & 1;\r
971 allActions[pl] |= acts;\r
972 }\r
973 }\r
974 }\r
975 }\r
976\r
25fced50 977 PicoPad[0] = (unsigned short) allActions[0];\r
978 PicoPad[1] = (unsigned short) allActions[1];\r
720ee7f6 979\r
980 events = (allActions[0] | allActions[1]) >> 16;\r
981\r
982 // volume is treated in special way and triggered every frame\r
983 if(events & 0x6000) {\r
984 int vol = currentConfig.volume;\r
985 if (events & 0x2000) {\r
5e2e14f2 986 if (vol < 99) vol++;\r
720ee7f6 987 } else {\r
988 if (vol > 0) vol--;\r
989 }\r
990 gp2x_sound_volume(vol, vol);\r
991 sprintf(noticeMsg, "VOL: %02i", vol);\r
992 gettimeofday(&noticeMsgTime, 0);\r
993 currentConfig.volume = vol;\r
994 }\r
995\r
996 events &= ~prevEvents;\r
997 if (events) RunEvents(events);\r
25fced50 998 if (movie_data) updateMovie();\r
720ee7f6 999\r
1000 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
1001}\r
1002\r
720ee7f6 1003\r
3ef975c9 1004static void updateSound(int len)\r
720ee7f6 1005{\r
3ef975c9 1006 if (PicoOpt&8) len<<=1;\r
720ee7f6 1007\r
d9a18943 1008 /* avoid writing audio when lagging behind to prevent audio lag */\r
1009 if (PicoSkipFrame != 2)\r
1010 gp2x_sound_write(PsndOut, len<<1);\r
720ee7f6 1011}\r
1012\r
1013\r
d9a18943 1014static void SkipFrame(int do_audio)\r
720ee7f6 1015{\r
d9a18943 1016 PicoSkipFrame=do_audio ? 1 : 2;\r
720ee7f6 1017 PicoFrame();\r
1018 PicoSkipFrame=0;\r
720ee7f6 1019}\r
1020\r
1021\r
4ffd2858 1022void emu_forced_frame(void)\r
1023{\r
1024 int po_old = PicoOpt;\r
1025\r
1026 PicoOpt |= 0x10;\r
1027 PicoFrameFull();\r
4ffd2858 1028\r
1029 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 1030 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 1031 clearArea(1);\r
dccc2bd0 1032 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 1033\r
1034 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
1035 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
1036 gp2x_video_setpalette(localPal, 0x40);\r
e1aa0fa7 1037\r
1038 PicoOpt = po_old;\r
4ffd2858 1039}\r
1040\r
720ee7f6 1041static void simpleWait(int thissec, int lim_time)\r
1042{\r
1043 struct timeval tval;\r
1044\r
1045 spend_cycles(1024);\r
1046 gettimeofday(&tval, 0);\r
1047 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1048\r
1049 while(tval.tv_usec < lim_time)\r
1050 {\r
1051 spend_cycles(1024);\r
1052 gettimeofday(&tval, 0);\r
1053 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1054 }\r
1055}\r
1056\r
1057\r
1058void emu_Loop(void)\r
1059{\r
1060 static int gp2x_old_clock = 200;\r
1061 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
1062 char fpsbuff[24]; // fps count c string\r
1063 struct timeval tval; // timing\r
1064 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
1065 int target_fps, target_frametime, lim_time, i;\r
1066 char *notice = 0;\r
1067\r
1068 printf("entered emu_Loop()\n");\r
1069\r
1070 if (gp2x_old_clock != currentConfig.CPUclock) {\r
1071 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
1072 set_FCLK(currentConfig.CPUclock);\r
1073 gp2x_old_clock = currentConfig.CPUclock;\r
1074 printf(" done\n");\r
1075 }\r
1076\r
1077 if (gp2x_old_gamma != currentConfig.gamma) {\r
1078 set_gamma(currentConfig.gamma);\r
1079 gp2x_old_gamma = currentConfig.gamma;\r
1080 printf("updated gamma to %i\n", currentConfig.gamma);\r
1081 }\r
1082\r
1083 fpsbuff[0] = 0;\r
1084\r
1085 // make sure we are in correct mode\r
1086 vidResetMode();\r
e5d315a5 1087 Pico.m.dirtyPal = 1;\r
720ee7f6 1088 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
1089 find_combos();\r
1090\r
1091 // pal/ntsc might have changed, reset related stuff\r
1092 target_fps = Pico.m.pal ? 50 : 60;\r
1093 target_frametime = 1000000/target_fps;\r
1094 reset_timing = 1;\r
1095\r
1096 // prepare sound stuff\r
1097 if(currentConfig.EmuOpt & 4) {\r
3ef975c9 1098 int snd_excess_add;\r
720ee7f6 1099 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
1100 /* if 940 is turned off, we need it to be put back to sleep */\r
1101 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
8dfb9fd5 1102 Reset940(1, 2);\r
720ee7f6 1103 Pause940(1);\r
1104 }\r
3ef975c9 1105 sound_rerate(1);\r
720ee7f6 1106 }\r
1107 //excess_samples = PsndRate - PsndLen*target_fps;\r
720ee7f6 1108 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1109 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
1110 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
1111 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
1112 PicoWriteSound = updateSound;\r
3ef975c9 1113 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1114 PsndOut = sndBuffer;\r
720ee7f6 1115 PsndRate_old = PsndRate;\r
1116 PsndLen_real = PsndLen;\r
1117 PicoOpt_old = PicoOpt;\r
1118 pal_old = Pico.m.pal;\r
1119 } else {\r
1120 PsndOut = 0;\r
1121 }\r
1122\r
5f9922e6 1123 // prepare CD buffer\r
1124 if (PicoMCD & 1) PicoCDBufferInit();\r
1125\r
720ee7f6 1126 // loop?\r
1127 while (engineState == PGS_Running)\r
1128 {\r
1129 int modes;\r
1130\r
1131 gettimeofday(&tval, 0);\r
1132 if(reset_timing) {\r
1133 reset_timing = 0;\r
1134 thissec = tval.tv_sec;\r
1135 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
1136 }\r
1137\r
1138 // show notice message?\r
1139 if(noticeMsgTime.tv_sec) {\r
1140 static int noticeMsgSum;\r
1141 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
1142 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
1143 clearArea(0);\r
1144 notice = 0;\r
1145 } else {\r
1146 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
1147 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
1148 notice = noticeMsg;\r
1149 }\r
1150 }\r
1151\r
1152 // check for mode changes\r
1153 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
1154 if (modes != oldmodes) {\r
1155 int scalex = 320;\r
1156 osd_fps_x = OSD_FPS_X;\r
1157 if (modes & 4) {\r
1158 vidCpyM2 = vidCpyM2_40col;\r
1159 } else {\r
1160 if (PicoOpt & 0x100) {\r
1161 vidCpyM2 = vidCpyM2_32col_nobord;\r
1162 scalex = 256;\r
1163 osd_fps_x = OSD_FPS_X - 64;\r
1164 } else {\r
1165 vidCpyM2 = vidCpyM2_32col;\r
1166 }\r
1167 }\r
79cad122 1168 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
1169 gp2x_video_RGB_setscaling(8, scalex, 224);\r
1170 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
720ee7f6 1171 oldmodes = modes;\r
1172 clearArea(1);\r
1173 }\r
1174\r
1175 // second changed?\r
1176 if(thissec != tval.tv_sec) {\r
1177#ifdef BENCHMARK\r
1178 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1179 if(++bench == 10) {\r
1180 bench = 0;\r
1181 bench_fps_s = bench_fps;\r
1182 bf[bfp++ & 3] = bench_fps;\r
1183 bench_fps = 0;\r
1184 }\r
1185 bench_fps += frames_shown;\r
1186 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1187#else\r
1188 if(currentConfig.EmuOpt & 2)\r
1189 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1190#endif\r
1191 thissec = tval.tv_sec;\r
1192\r
1193 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
1194 frames_done = frames_shown = 0;\r
1195 } else {\r
1196 // it is quite common for this implementation to leave 1 fame unfinished\r
1197 // when second changes, but we don't want buffer to starve.\r
1198 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
1199 updateKeys();\r
d9a18943 1200 SkipFrame(1); frames_done++;\r
720ee7f6 1201 }\r
1202\r
1203 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
1204 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
1205 if (frames_shown > frames_done) frames_shown = frames_done;\r
1206 }\r
1207 }\r
5e2e14f2 1208#if 0\r
e5589947 1209 sprintf(fpsbuff, "%05i", Pico.m.frame_count);\r
1210#endif\r
720ee7f6 1211 lim_time = (frames_done+1) * target_frametime;\r
1212 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
1213 for(i = 0; i < currentConfig.Frameskip; i++) {\r
1214 updateKeys();\r
d9a18943 1215 SkipFrame(1); frames_done++;\r
720ee7f6 1216 if (PsndOut) { // do framelimitting if sound is enabled\r
1217 gettimeofday(&tval, 0);\r
1218 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1219 if(tval.tv_usec < lim_time) { // we are too fast\r
1220 simpleWait(thissec, lim_time);\r
1221 }\r
1222 }\r
1223 lim_time += target_frametime;\r
1224 }\r
1225 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
1226 // no time left for this frame - skip\r
d032c15a 1227 if (tval.tv_usec - lim_time >= 0x300000) {\r
1228 /* something caused a slowdown for us (disk access? cache flush?)\r
1229 * try to recover by resetting timing... */\r
1230 reset_timing = 1;\r
1231 continue;\r
1232 }\r
720ee7f6 1233 updateKeys();\r
8f1b51ef 1234 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
720ee7f6 1235 continue;\r
1236 }\r
1237\r
1238 updateKeys();\r
1239 PicoFrame();\r
1240\r
47f22a1f 1241#if 0\r
1242if (Pico.m.frame_count == 31563) {\r
1243 FILE *f;\r
1244 f = fopen("ram_p.bin", "wb");\r
1245 if (!f) { printf("!f\n"); exit(1); }\r
1246 fwrite(Pico.ram, 1, 0x10000, f);\r
1247 fclose(f);\r
1248 exit(0);\r
1249}\r
1250#endif\r
1a20dbc8 1251#if 0\r
1252 // debug\r
1253 {\r
47f22a1f 1254 #define BYTE unsigned char\r
1255 #define WORD unsigned short\r
1256 struct\r
1257 {\r
1258 BYTE IDLength; /* 00h Size of Image ID field */\r
1259 BYTE ColorMapType; /* 01h Color map type */\r
1260 BYTE ImageType; /* 02h Image type code */\r
1261 WORD CMapStart; /* 03h Color map origin */\r
1262 WORD CMapLength; /* 05h Color map length */\r
1263 BYTE CMapDepth; /* 07h Depth of color map entries */\r
1264 WORD XOffset; /* 08h X origin of image */\r
1265 WORD YOffset; /* 0Ah Y origin of image */\r
1266 WORD Width; /* 0Ch Width of image */\r
1267 WORD Height; /* 0Eh Height of image */\r
1268 BYTE PixelDepth; /* 10h Image pixel size */\r
1269 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
1270 } __attribute__((packed)) TGAHEAD;\r
1271 static unsigned short oldscr[320*240];\r
1a20dbc8 1272 FILE *f; char name[128]; int i;\r
47f22a1f 1273\r
1274 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
1275 TGAHEAD.ImageType = 2;\r
1276 TGAHEAD.Width = 320;\r
1277 TGAHEAD.Height = 240;\r
1278 TGAHEAD.PixelDepth = 16;\r
1279 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
1280\r
1281 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
1282\r
1283 for (i = 0; i < 320*240; i++)\r
1284 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
1285 if (i < 320*240)\r
1a20dbc8 1286 {\r
47f22a1f 1287 for (i = 0; i < 320*240; i++)\r
1288 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
1289 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
1a20dbc8 1290 f = fopen(name, "wb");\r
1291 if (!f) { printf("!f\n"); exit(1); }\r
47f22a1f 1292 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
1293 fwrite(oldscr, 1, 320*240*2, f);\r
1a20dbc8 1294 fclose(f);\r
1295 }\r
1296 }\r
1297#endif\r
1298\r
720ee7f6 1299 // check time\r
1300 gettimeofday(&tval, 0);\r
d032c15a 1301 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 1302\r
d032c15a 1303 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 0x300000) // slowdown detection\r
1304 reset_timing = 1;\r
1305 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 1306 {\r
d032c15a 1307 // sleep if we are still too fast\r
720ee7f6 1308 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
720ee7f6 1309 if(tval.tv_usec < lim_time)\r
1310 {\r
1311 // we are too fast\r
1312 simpleWait(thissec, lim_time);\r
1313 }\r
1314 }\r
1315\r
1316 blit(fpsbuff, notice);\r
1317\r
1318 frames_done++; frames_shown++;\r
1319 }\r
1320\r
5f9922e6 1321\r
1322 if (PicoMCD & 1) PicoCDBufferFree();\r
1323\r
720ee7f6 1324 // save SRAM\r
1325 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
0805b5b4 1326 osd_text(4, 232, "Writing SRAM/BRAM..");\r
720ee7f6 1327 emu_SaveLoadGame(0, 1);\r
1328 SRam.changed = 0;\r
1329 }\r
e5d315a5 1330\r
1331 // if in 16bit mode, generate 8it image for menu background\r
4ffd2858 1332 if (!(PicoOpt&0x10) && (currentConfig.EmuOpt&0x80))\r
1333 emu_forced_frame();\r
0805b5b4 1334\r
1335 // for menu bg\r
4ffd2858 1336 gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);\r
720ee7f6 1337}\r
1338\r
1339\r
1340void emu_ResetGame(void)\r
1341{\r
1342 PicoReset(0);\r
1343 reset_timing = 1;\r
1344}\r
1345\r
1346\r
1347size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1348{\r
1349 return gzread(file, p, _n);\r
1350}\r
1351\r
1352\r
1353size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1354{\r
1355 return gzwrite(file, p, _n);\r
1356}\r
1357\r
4ffd2858 1358static int try_ropen_file(const char *fname)\r
1359{\r
1360 FILE *f;\r
1361\r
1362 f = fopen(fname, "rb");\r
1363 if (f) {\r
1364 fclose(f);\r
1365 return 1;\r
1366 }\r
1367 return 0;\r
1368}\r
1369\r
1370char *emu_GetSaveFName(int load, int is_sram, int slot)\r
1371{\r
1372 static char saveFname[512];\r
1373 char ext[16];\r
1374\r
1375 if (is_sram)\r
1376 {\r
1377 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
1378 if (load) {\r
1379 if (try_ropen_file(saveFname)) return saveFname;\r
1380 // try in current dir..\r
1381 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
1382 if (try_ropen_file(saveFname)) return saveFname;\r
1383 return NULL; // give up\r
1384 }\r
1385 }\r
1386 else\r
1387 {\r
1388 ext[0] = 0;\r
1389 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1390 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
1391\r
1392 romfname_ext(saveFname, "mds/", ext);\r
1393 if (load) {\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 if (currentConfig.EmuOpt & 8) {\r
1398 ext[0] = 0;\r
1399 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1400 strcat(ext, ".mds");\r
1401\r
1402 romfname_ext(saveFname, "mds/", ext);\r
1403 if (try_ropen_file(saveFname)) return saveFname;\r
1404 romfname_ext(saveFname, NULL, ext);\r
1405 if (try_ropen_file(saveFname)) return saveFname;\r
1406 }\r
1407 return NULL;\r
1408 }\r
1409 }\r
1410\r
1411 return saveFname;\r
1412}\r
1413\r
1414int emu_check_save_file(int slot)\r
1415{\r
1416 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
1417}\r
1418\r
1419void emu_set_save_cbs(int gz)\r
1420{\r
1421 if (gz) {\r
1422 areaRead = gzRead2;\r
1423 areaWrite = gzWrite2;\r
1424 areaEof = (areaeof *) gzeof;\r
1425 areaSeek = (areaseek *) gzseek;\r
1426 areaClose = (areaclose *) gzclose;\r
1427 } else {\r
1428 areaRead = (arearw *) fread;\r
1429 areaWrite = (arearw *) fwrite;\r
1430 areaEof = (areaeof *) feof;\r
1431 areaSeek = (areaseek *) fseek;\r
1432 areaClose = (areaclose *) fclose;\r
1433 }\r
1434}\r
720ee7f6 1435\r
1436int emu_SaveLoadGame(int load, int sram)\r
1437{\r
1438 int ret = 0;\r
4ffd2858 1439 char *saveFname;\r
720ee7f6 1440\r
1441 // make save filename\r
4ffd2858 1442 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
1443 if (saveFname == NULL) {\r
dccc2bd0 1444 if (!sram) {\r
1445 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
1446 gettimeofday(&noticeMsgTime, 0);\r
1447 }\r
4ffd2858 1448 return -1;\r
720ee7f6 1449 }\r
1450\r
1451 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1452\r
1453 if(sram) {\r
1454 FILE *sramFile;\r
15f38574 1455 int sram_size;\r
1456 unsigned char *sram_data;\r
1457 if (PicoMCD&1) {\r
1458 sram_size = 0x2000;\r
1459 sram_data = Pico_mcd->bram;\r
1460 } else {\r
1461 sram_size = SRam.end-SRam.start+1;\r
1462 if(SRam.reg_back & 4) sram_size=0x2000;\r
1463 sram_data = SRam.data;\r
1464 }\r
1465 if(!sram_data) return 0; // SRam forcefully disabled for this game\r
1466\r
720ee7f6 1467 if(load) {\r
1468 sramFile = fopen(saveFname, "rb");\r
1469 if(!sramFile) return -1;\r
15f38574 1470 fread(sram_data, 1, sram_size, sramFile);\r
720ee7f6 1471 fclose(sramFile);\r
1472 } else {\r
1473 // sram save needs some special processing\r
1474 // see if we have anything to save\r
1475 for(; sram_size > 0; sram_size--)\r
15f38574 1476 if(sram_data[sram_size-1]) break;\r
720ee7f6 1477\r
1478 if(sram_size) {\r
1479 sramFile = fopen(saveFname, "wb");\r
15f38574 1480 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
720ee7f6 1481 ret = (ret != sram_size) ? -1 : 0;\r
1482 fclose(sramFile);\r
79cad122 1483#ifndef NO_SYNC\r
720ee7f6 1484 sync();\r
79cad122 1485#endif\r
720ee7f6 1486 }\r
1487 }\r
1488 return ret;\r
15f38574 1489 }\r
1490 else\r
1491 {\r
720ee7f6 1492 void *PmovFile = NULL;\r
4ffd2858 1493 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
720ee7f6 1494 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
4ffd2858 1495 emu_set_save_cbs(1);\r
720ee7f6 1496 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
4ffd2858 1497 }\r
720ee7f6 1498 }\r
4ffd2858 1499 else\r
1500 {\r
720ee7f6 1501 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
4ffd2858 1502 emu_set_save_cbs(0);\r
720ee7f6 1503 }\r
1504 }\r
1505 if(PmovFile) {\r
98c9d8d9 1506 ret = PmovState(load ? 6 : 5, PmovFile);\r
4ffd2858 1507 areaClose(PmovFile);\r
720ee7f6 1508 PmovFile = 0;\r
79cad122 1509 if (load) Pico.m.dirtyPal=1;\r
1510#ifndef NO_SYNC\r
1511 else sync();\r
1512#endif\r
98c9d8d9 1513 }\r
1514 else ret = -1;\r
1515 if (!ret)\r
1516 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
1517 else\r
1518 {\r
720ee7f6 1519 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
1520 ret = -1;\r
1521 }\r
1522\r
1523 gettimeofday(&noticeMsgTime, 0);\r
1524 return ret;\r
1525 }\r
1526}\r
PicoDrive's frontend in a lib