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trying to add movie support
[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
9#include <linux/limits.h>\r
10#include <ctype.h>\r
11#include <unistd.h>\r
12\r
13#include <stdarg.h>\r
14\r
15#include "emu.h"\r
16#include "gp2x.h"\r
17#include "usbjoy.h"\r
18#include "menu.h"\r
19#include "asmutils.h"\r
20#include "cpuctrl.h"\r
21\r
22#include "Pico/PicoInt.h"\r
23#include "zlib/zlib.h"\r
24\r
25\r
26#ifdef BENCHMARK\r
27#define OSD_FPS_X 220\r
28#else\r
29#define OSD_FPS_X 260\r
30#endif\r
31\r
32// PicoPad[] format: SACB RLDU\r
33char *actionNames[] = {\r
34 "UP", "DOWN", "LEFT", "RIGHT", "B", "C", "A", "START",\r
35 0, 0, 0, 0, 0, 0, 0, 0, // Z, Y, X, MODE (enabled only when needed), ?, ?, ?, ?\r
36 0, 0, 0, 0, 0, 0, 0, "ENTER MENU", // player2_flag, ?, ?, ?, ?, ?, ?, menu\r
37 "NEXT SAVE SLOT", "PREV SAVE SLOT", "SWITCH RENDERER", "SAVE STATE",\r
38 "LOAD STATE", "VOLUME UP", "VOLUME DOWN", "DONE"\r
39};\r
40\r
41int engineState;\r
42int select_exits = 0;\r
43char *PicoConfigFile = "picoconfig.bin";\r
44currentConfig_t currentConfig;\r
45\r
46char romFileName[PATH_MAX];\r
47unsigned char *rom_data = NULL;\r
48\r
49extern int crashed_940;\r
50\r
51static char noticeMsg[64]; // notice msg to draw\r
52static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
53static int reset_timing, osd_fps_x;\r
54static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos\r
55static int gp2x_old_gamma = 100;\r
56static unsigned char *movie_data = NULL;\r
57static int movie_size = 0;\r
4f672280 58int frame_count = 0;\r
cc68a136 59unsigned char *framebuff = 0; // temporary buffer for alt renderer\r
60int state_slot = 0;\r
61\r
62/*\r
63// tmp\r
64static FILE *logf = NULL;\r
65\r
66void pprintf(char *texto, ...)\r
67{\r
68 va_list args;\r
69\r
70 va_start(args,texto);\r
71 vfprintf(logf,texto,args);\r
72 va_end(args);\r
73 fflush(logf);\r
74 sync();\r
75}\r
76*/\r
77// utilities\r
78static void strlwr(char* string)\r
79{\r
80 while ( (*string++ = (char)tolower(*string)) );\r
81}\r
82\r
83static int try_rfn_ext(char *ext)\r
84{\r
85 FILE *tmp;\r
86 char *p;\r
87\r
88 p = romFileName + strlen(romFileName) - 4;\r
89 if (p < romFileName) p = romFileName;\r
90 strcpy(p, ext);\r
91\r
92 if((tmp = fopen(romFileName, "rb"))) {\r
93 fclose(tmp);\r
94 return 1;\r
95 }\r
96 return 0;\r
97}\r
98\r
99int emu_ReloadRom(void)\r
100{\r
101 unsigned int rom_size = 0;\r
102 char ext[5], *p;\r
103 FILE *rom;\r
104 int ret;\r
105\r
106 printf("emu_ReloadRom(%s)\n", romFileName);\r
107\r
108 // detect wrong extensions (.srm and .mds)\r
109 p = romFileName + strlen(romFileName) - 4;\r
110 if (p < romFileName) p = romFileName;\r
111 strncpy(ext, p, 4);\r
112 ext[4] = 0;\r
113 strlwr(ext);\r
114\r
115 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
116 sprintf(menuErrorMsg, "Not a ROM selected.");\r
117 return 0;\r
118 }\r
119\r
120 // check for movie file\r
121 if(movie_data) {\r
122 free(movie_data);\r
123 movie_data = 0;\r
124 }\r
125 if(!strcmp(ext, ".gmv")) {\r
126 // check for both gmv and rom\r
127 int dummy;\r
128 FILE *movie_file = fopen(romFileName, "rb");\r
129 if(!movie_file) {\r
130 sprintf(menuErrorMsg, "Failed to open movie.");\r
131 return 0;\r
132 }\r
133 fseek(movie_file, 0, SEEK_END);\r
134 movie_size = ftell(movie_file);\r
135 fseek(movie_file, 0, SEEK_SET);\r
136 if(movie_size < 64+3) {\r
137 sprintf(menuErrorMsg, "Invalid GMV file.");\r
138 fclose(movie_file);\r
139 return 0;\r
140 }\r
141 movie_data = malloc(movie_size);\r
142 if(movie_data == NULL) {\r
143 sprintf(menuErrorMsg, "low memory.");\r
144 fclose(movie_file);\r
145 return 0;\r
146 }\r
147 fread(movie_data, 1, movie_size, movie_file);\r
148 fclose(movie_file);\r
149 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
150 sprintf(menuErrorMsg, "Invalid GMV file.");\r
151 return 0;\r
152 }\r
153 dummy = try_rfn_ext(".zip") || try_rfn_ext(".bin") ||\r
154 try_rfn_ext(".smd") || try_rfn_ext(".gen");\r
155 if (!dummy) {\r
156 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
157 return 0;\r
158 }\r
159 }\r
160\r
161 rom = fopen(romFileName, "rb");\r
162 if(!rom) {\r
163 sprintf(menuErrorMsg, "Failed to open rom.");\r
164 return 0;\r
165 }\r
166\r
167 if(rom_data) {\r
168 free(rom_data);\r
169 rom_data = 0;\r
170 rom_size = 0;\r
171 }\r
172\r
173 // zipfile support\r
174 if(!strcasecmp(ext, ".zip")) {\r
175 fclose(rom);\r
176 ret = CartLoadZip(romFileName, &rom_data, &rom_size);\r
177 if(ret) {\r
178 if (ret == 4) strcpy(menuErrorMsg, "No ROMs in zip found.");\r
179 else sprintf(menuErrorMsg, "Unzip failed with code %i", ret);\r
180 printf("%s\n", menuErrorMsg);\r
181 return 0;\r
182 }\r
183 } else {\r
184 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
185 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
186 printf("%s\n", menuErrorMsg);\r
187 fclose(rom);\r
188 return 0;\r
189 }\r
190 fclose(rom);\r
191 }\r
192\r
193 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
194 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
195 ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
196 if (rom_data) free(rom_data);\r
197 rom_data = 0;\r
198 sprintf(menuErrorMsg, "Not a ROM selected.");\r
199 return 0;\r
200 }\r
201\r
202 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
203 if(PicoCartInsert(rom_data, rom_size)) {\r
204 sprintf(menuErrorMsg, "Failed to load ROM.");\r
205 return 0;\r
206 }\r
207\r
208 // load config for this ROM\r
209 ret = emu_ReadConfig(1);\r
210 if (!ret)\r
211 emu_ReadConfig(0);\r
212\r
213 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
214 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
215 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
216\r
217 // additional movie stuff\r
218 if(movie_data) {\r
219 if(movie_data[0x14] == '6')\r
220 PicoOpt |= 0x20; // 6 button pad\r
221 else PicoOpt &= ~0x20;\r
4f672280 222 PicoOpt |= 0x40; // accurate timing\r
cc68a136 223 if(movie_data[0xF] >= 'A') {\r
4f672280 224 if(movie_data[0x16] & 0x80) {\r
225 PicoRegionOverride = 8;\r
226 } else {\r
227 PicoRegionOverride = 4;\r
228 }\r
229 PicoReset(0);\r
cc68a136 230 // TODO: bits 6 & 5\r
231 }\r
4f672280 232 movie_data[0x18+30] = 0;\r
233 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
cc68a136 234 }\r
235 else\r
236 {\r
237 if(Pico.m.pal) {\r
238 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
239 } else {\r
240 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
241 }\r
242 }\r
243 gettimeofday(&noticeMsgTime, 0);\r
244\r
245 // load SRAM for this ROM\r
246 if(currentConfig.EmuOpt & 1)\r
247 emu_SaveLoadGame(1, 1);\r
248\r
249 frame_count = 0;\r
250\r
251 return 1;\r
252}\r
253\r
254\r
255void emu_Init(void)\r
256{\r
257 // make temp buffer for alt renderer\r
258 framebuff = malloc((8+320)*(8+240+8));\r
259 if (!framebuff)\r
260 {\r
261 printf("framebuff == 0\n");\r
262 }\r
263\r
264 PicoInit();\r
265\r
266// logf = fopen("log.txt", "w");\r
267}\r
268\r
269\r
270static void romfname_ext(char *dst, char *ext)\r
271{\r
272 char *p;\r
273\r
274 // make save filename\r
275 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
276 strncpy(dst, p, 511);\r
277 dst[511-8] = 0;\r
278 if(dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
279 strcat(dst, ext);\r
280}\r
281\r
282\r
283static void find_combos(void)\r
284{\r
285 int act, u;\r
286\r
287 // find out which keys and actions are combos\r
288 combo_keys = combo_acts = 0;\r
289 for (act = 0; act < 32; act++)\r
290 {\r
291 int keyc = 0;\r
292 if (act == 16) continue; // player2 flag\r
293 for (u = 0; u < 32; u++)\r
294 {\r
295 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
296 }\r
297 if (keyc > 1)\r
298 {\r
299 // loop again and mark those keys and actions as combo\r
300 for (u = 0; u < 32; u++)\r
301 {\r
302 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
303 combo_keys |= 1 << u;\r
304 combo_acts |= 1 << act;\r
305 }\r
306 }\r
307 }\r
308 }\r
309 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
310}\r
311\r
312\r
313int emu_ReadConfig(int game)\r
314{\r
315 FILE *f;\r
316 char cfg[512];\r
317 int bread = 0;\r
318\r
319 if (!game)\r
320 {\r
321 // set default config\r
322 memset(&currentConfig, 0, sizeof(currentConfig));\r
323 currentConfig.lastRomFile[0] = 0;\r
324 currentConfig.EmuOpt = 0x1f;\r
325 currentConfig.PicoOpt = 0x0f;\r
326 currentConfig.PsndRate = 22050;\r
327 currentConfig.PicoRegion = 0; // auto\r
328 currentConfig.Frameskip = -1; // auto\r
329 currentConfig.CPUclock = 200;\r
330 currentConfig.volume = 50;\r
331 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
332 currentConfig.KeyBinds[ 4] = 1<<1;\r
333 currentConfig.KeyBinds[ 2] = 1<<2;\r
334 currentConfig.KeyBinds[ 6] = 1<<3;\r
335 currentConfig.KeyBinds[14] = 1<<4;\r
336 currentConfig.KeyBinds[13] = 1<<5;\r
337 currentConfig.KeyBinds[12] = 1<<6;\r
338 currentConfig.KeyBinds[ 8] = 1<<7;\r
339 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
340 currentConfig.KeyBinds[10] = 1<<27; // save state\r
341 currentConfig.KeyBinds[11] = 1<<28; // load state\r
342 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
343 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
344 currentConfig.gamma = 100;\r
345 strncpy(cfg, PicoConfigFile, 511);\r
346 cfg[511] = 0;\r
347 } else {\r
348 romfname_ext(cfg, ".pbcfg");\r
349 }\r
350\r
351 printf("emu_ReadConfig: %s ", cfg);\r
352 f = fopen(cfg, "rb");\r
353 if (f) {\r
354 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
355 fclose(f);\r
356 }\r
357 printf((bread == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
358\r
359 PicoOpt = currentConfig.PicoOpt;\r
360 PsndRate = currentConfig.PsndRate;\r
361 PicoRegionOverride = currentConfig.PicoRegion;\r
362 if (PicoOpt & 0x20) {\r
363 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";\r
364 actionNames[10] = "X"; actionNames[11] = "MODE";\r
365 }\r
366 // some sanity checks\r
367 if (currentConfig.CPUclock < 1 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
368 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
369 // if volume keys are unbound, bind them to volume control\r
370 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
371 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
372 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
373 }\r
374\r
375 return (bread == sizeof(currentConfig));\r
376}\r
377\r
378\r
379int emu_WriteConfig(int game)\r
380{\r
381 FILE *f;\r
382 char cfg[512];\r
383 int bwrite = 0;\r
384\r
385 if (!game)\r
386 {\r
387 strncpy(cfg, PicoConfigFile, 511);\r
388 cfg[511] = 0;\r
389 } else {\r
390 romfname_ext(cfg, ".pbcfg");\r
391 }\r
392\r
393 printf("emu_WriteConfig: %s ", cfg);\r
394 f = fopen(cfg, "wb");\r
395 if (f) {\r
396 currentConfig.PicoOpt = PicoOpt;\r
397 currentConfig.PsndRate = PsndRate;\r
398 currentConfig.PicoRegion = PicoRegionOverride;\r
399 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
400 fflush(f);\r
401 fclose(f);\r
402 sync();\r
403 }\r
404 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
405\r
406 return (bwrite == sizeof(currentConfig));\r
407}\r
408\r
409\r
410void emu_Deinit(void)\r
411{\r
412 // save SRAM\r
413 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
414 emu_SaveLoadGame(0, 1);\r
415 SRam.changed = 0;\r
416 }\r
417\r
418 if (!(currentConfig.EmuOpt & 0x20))\r
419 emu_WriteConfig(0);\r
420 free(framebuff);\r
421\r
422 PicoExit();\r
423// fclose(logf);\r
424\r
425 // restore gamma\r
426 if (gp2x_old_gamma != 100)\r
427 set_gamma(100);\r
428}\r
429\r
430\r
431void osd_text(int x, int y, char *text)\r
432{\r
433 int len = strlen(text)*8;\r
434\r
435 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
436 int *p, i, h, black, white;\r
437 if (PicoOpt&0x10) {\r
438 black = 0x40404040; white = 0x41;\r
439 } else {\r
440 black = 0xe0e0e0e0; white = 0xf0;\r
441 }\r
442 x &= ~3; // align x\r
443 len = (len+3) >> 2;\r
444 for (h = 0; h < 8; h++) {\r
445 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
446 for (i = len; i; i--, p++) *p = black;\r
447 }\r
448 gp2x_text_out8_2(x, y, text, white);\r
449 } else {\r
450 int *p, i, h;\r
451 x &= ~1; // align x\r
452 len = (len+1) >> 1;\r
453 for (h = 0; h < 8; h++) {\r
454 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
455 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
456 }\r
457 gp2x_text_out15(x, y, text);\r
458 }\r
459}\r
460\r
461static int EmuScan16(unsigned int num, void *sdata)\r
462{\r
463 if (!(Pico.video.reg[1]&8)) num += 8;\r
464 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
465\r
466 return 0;\r
467}\r
468\r
469static int EmuScan8(unsigned int num, void *sdata)\r
470{\r
471 if (!(Pico.video.reg[1]&8)) num += 8;\r
472 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
473\r
474 return 0;\r
475}\r
476\r
477static int localPal[0x100];\r
478static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
479\r
480static void blit(char *fps, char *notice)\r
481{\r
482 if (PicoOpt&0x10) {\r
483 // 8bit fast renderer\r
484 if (Pico.m.dirtyPal) {\r
485 Pico.m.dirtyPal = 0;\r
486 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
487 // feed new palette to our device\r
488 gp2x_video_setpalette(localPal, 0x40);\r
489 }\r
490 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
491 } else if (!(currentConfig.EmuOpt&0x80)) {\r
492 // 8bit accurate renderer\r
493 if (Pico.m.dirtyPal) {\r
494 Pico.m.dirtyPal = 0;\r
495 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
496 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
497 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
498 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
499 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
500 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
501 localPal[0xf0] = 0x00ffffff;\r
502 gp2x_video_setpalette(localPal, 0x100);\r
503 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
504 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
505 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
506 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
507 gp2x_video_setpalette(localPal, 0xc0);\r
508 } else {\r
509 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
510 gp2x_video_setpalette(localPal, 0x40);\r
511 }\r
512 }\r
513 }\r
514\r
515 if (notice) osd_text(4, 232, notice);\r
516 if (currentConfig.EmuOpt & 2)\r
517 osd_text(osd_fps_x, 232, fps);\r
518\r
519 //gp2x_video_wait_vsync();\r
520 gp2x_video_flip();\r
521\r
522 if (!(PicoOpt&0x10)) {\r
523 if (!(Pico.video.reg[1]&8)) {\r
524 if (currentConfig.EmuOpt&0x80) {\r
525 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
526 } else {\r
527 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
528 }\r
529 } else {\r
530 DrawLineDest = gp2x_screen;\r
531 }\r
532 }\r
533}\r
534\r
535\r
536// clears whole screen or just the notice area (in all buffers)\r
537static void clearArea(int full)\r
538{\r
539 if (PicoOpt&0x10) {\r
540 // 8bit fast renderer\r
541 if (full) gp2x_memset_all_buffers(0, 0x40, 320*240);\r
542 else gp2x_memset_all_buffers(320*232, 0x40, 320*8);\r
543 } else if (currentConfig.EmuOpt&0x80) {\r
544 // 16bit accurate renderer\r
545 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
546 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
547 } else {\r
548 // 8bit accurate renderer\r
549 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
550 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
551 }\r
552}\r
553\r
554\r
555static void vidResetMode(void)\r
556{\r
557 if (PicoOpt&0x10) {\r
558 localPal[0x40] = 0;\r
559 localPal[0x41] = 0x00ffffff;\r
560 gp2x_video_changemode(8);\r
561 gp2x_video_setpalette(localPal, 0x42);\r
562 gp2x_memset_all_buffers(0, 0x40, 320*240);\r
563 gp2x_video_flip();\r
564 } else if (currentConfig.EmuOpt&0x80) {\r
565 gp2x_video_changemode(15);\r
566 PicoDrawSetColorFormat(1);\r
567 PicoScan = EmuScan16;\r
568 PicoScan(0, 0);\r
569 } else {\r
570 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
571 localPal[0xf0] = 0x00ffffff;\r
572 gp2x_video_changemode(8);\r
573 gp2x_video_setpalette(localPal, 0x100);\r
574 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
575 gp2x_video_flip();\r
576 PicoDrawSetColorFormat(2);\r
577 PicoScan = EmuScan8;\r
578 PicoScan(0, 0);\r
579 }\r
580 Pico.m.dirtyPal = 1;\r
581 // reset scaling\r
582 gp2x_video_RGB_setscaling((PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
583}\r
584\r
585\r
586static int check_save_file(void)\r
587{\r
588 char saveFname[512];\r
589 char ext[16];\r
590 FILE *f;\r
591\r
592 ext[0] = 0;\r
593 if(state_slot > 0 && state_slot < 10) sprintf(ext, ".%i", state_slot);\r
594 strcat(ext, ".mds");\r
595 if(currentConfig.EmuOpt & 8) strcat(ext, ".gz");\r
596\r
597 romfname_ext(saveFname, ext);\r
598 if ((f = fopen(saveFname, "rb"))) {\r
599 fclose(f);\r
600 return 1;\r
601 }\r
602 return 0;\r
603}\r
604\r
605static void RunEvents(unsigned int which)\r
606{\r
607 if(which & 0x1800) { // save or load (but not both)\r
608 int do_it = 1;\r
609 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && check_save_file()) {\r
610 unsigned long keys;\r
611 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");\r
612 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
613 usleep(50*1024);\r
614 if (keys & GP2X_X) do_it = 0;\r
615 clearArea(0);\r
616 }\r
617 if (do_it) {\r
618 blit("", (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
619 emu_SaveLoadGame(which & 0x1000, 0);\r
620 }\r
621\r
622 reset_timing = 1;\r
623 }\r
624 if(which & 0x0400) { // switch renderer\r
625 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
626 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
627 else currentConfig.EmuOpt &= ~0x80;\r
628\r
629 vidResetMode();\r
630\r
631 if (PicoOpt&0x10) {\r
632 strcpy(noticeMsg, " 8bit fast renderer");\r
633 } else if (currentConfig.EmuOpt&0x80) {\r
634 strcpy(noticeMsg, "16bit accurate renderer");\r
635 } else {\r
636 strcpy(noticeMsg, " 8bit accurate renderer");\r
637 }\r
638\r
639 gettimeofday(&noticeMsgTime, 0);\r
640 }\r
641 if(which & 0x0300) {\r
642 if(which&0x0200) {\r
643 state_slot -= 1;\r
644 if(state_slot < 0) state_slot = 9;\r
645 } else {\r
646 state_slot += 1;\r
647 if(state_slot > 9) state_slot = 0;\r
648 }\r
649 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, check_save_file() ? "USED" : "FREE");\r
650 gettimeofday(&noticeMsgTime, 0);\r
651 }\r
652 if(which & 0x0080) {\r
653 engineState = PGS_Menu;\r
654 }\r
655}\r
656\r
657\r
658static void updateKeys(void)\r
659{\r
660 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
661 static unsigned long prevEvents = 0;\r
662 int joy, i;\r
663\r
664 keys = gp2x_joystick_read(0);\r
665 if (keys & GP2X_SELECT) {\r
666 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
667 // wait until select is released, so menu would not resume game\r
668 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
669 }\r
670\r
671 keys &= CONFIGURABLE_KEYS;\r
672\r
673 for (i = 0; i < 32; i++)\r
674 {\r
675 if (keys & (1 << i)) {\r
676 int pl, acts = currentConfig.KeyBinds[i];\r
677 if (!acts) continue;\r
678 pl = (acts >> 16) & 1;\r
679 if (combo_keys & (1 << i)) {\r
680 int u = i+1, acts_c = acts & combo_acts;\r
681 // let's try to find the other one\r
682 if (acts_c)\r
683 for (; u < 32; u++)\r
684 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
685 allActions[pl] |= acts_c;\r
686 keys &= ~((1 << i) | (1 << u));\r
687 break;\r
688 }\r
689 // add non-combo actions if combo ones were not found\r
690 if (!acts_c || u == 32)\r
691 allActions[pl] |= acts & ~combo_acts;\r
692 } else {\r
693 allActions[pl] |= acts;\r
694 }\r
695 }\r
696 }\r
697\r
698 // add joy inputs\r
699 if (num_of_joys > 0)\r
700 {\r
701 gp2x_usbjoy_update();\r
702 for (joy = 0; joy < num_of_joys; joy++) {\r
703 int keys = gp2x_usbjoy_check2(joy);\r
704 for (i = 0; i < 32; i++) {\r
705 if (keys & (1 << i)) {\r
706 int acts = currentConfig.JoyBinds[joy][i];\r
707 int pl = (acts >> 16) & 1;\r
708 allActions[pl] |= acts;\r
709 }\r
710 }\r
711 }\r
712 }\r
713\r
714 if(movie_data)\r
715 {\r
716 int offs = frame_count*3 + 0x40;\r
717 if (offs+3 > movie_size) {\r
718 free(movie_data);\r
719 movie_data = 0;\r
720 strcpy(noticeMsg, "END OF MOVIE.");\r
721 printf("END OF MOVIE.\n");\r
722 gettimeofday(&noticeMsgTime, 0);\r
723 } else {\r
724 // MXYZ SACB RLDU\r
725 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
726 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
727 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
728 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
729 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
730 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
731 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
732 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
733 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
734 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
735 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
736 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
737 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
738 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
739 if ((PicoPad[0] & 0x80) || (PicoPad[1] & 0x80))\r
740 printf("%d: start\n", frame_count);\r
741 }\r
742 }\r
743 else\r
744 {\r
745 PicoPad[0] = (unsigned short) allActions[0];\r
746 PicoPad[1] = (unsigned short) allActions[1];\r
747 }\r
748 frame_count++;\r
749\r
750 events = (allActions[0] | allActions[1]) >> 16;\r
751\r
752 // volume is treated in special way and triggered every frame\r
753 if(events & 0x6000) {\r
754 int vol = currentConfig.volume;\r
755 if (events & 0x2000) {\r
756 if (vol < 90) vol++;\r
757 } else {\r
758 if (vol > 0) vol--;\r
759 }\r
760 gp2x_sound_volume(vol, vol);\r
761 sprintf(noticeMsg, "VOL: %02i", vol);\r
762 gettimeofday(&noticeMsgTime, 0);\r
763 currentConfig.volume = vol;\r
764 }\r
765\r
766 events &= ~prevEvents;\r
767 if (events) RunEvents(events);\r
768\r
769 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
770}\r
771\r
772static int snd_excess_add = 0, snd_excess_cnt = 0; // hack\r
773\r
774static void updateSound(void)\r
775{\r
776 int len = (PicoOpt&8)?PsndLen*2:PsndLen;\r
777\r
778 snd_excess_cnt += snd_excess_add;\r
779 if (snd_excess_cnt >= 0x10000) {\r
780 snd_excess_cnt -= 0x10000;\r
781 if (PicoOpt&8) {\r
782 PsndOut[len] = PsndOut[len-2];\r
783 PsndOut[len+1] = PsndOut[len-1];\r
784 len+=2;\r
785 } else {\r
786 PsndOut[len] = PsndOut[len-1];\r
787 len++;\r
788 }\r
789 }\r
790\r
791 gp2x_sound_write(PsndOut, len<<1);\r
792}\r
793\r
794\r
795static void SkipFrame(int do_sound)\r
796{\r
797 void *sndbuff_tmp = 0;\r
798 if (PsndOut && !do_sound) {\r
799 sndbuff_tmp = PsndOut;\r
800 PsndOut = 0;\r
801 }\r
802\r
803 PicoSkipFrame=1;\r
804 PicoFrame();\r
805 PicoSkipFrame=0;\r
806\r
807 if (sndbuff_tmp && !do_sound) {\r
808 PsndOut = sndbuff_tmp;\r
809 }\r
810}\r
811\r
812\r
813static void simpleWait(int thissec, int lim_time)\r
814{\r
815 struct timeval tval;\r
816\r
817 spend_cycles(1024);\r
818 gettimeofday(&tval, 0);\r
819 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
820\r
821 while(tval.tv_usec < lim_time)\r
822 {\r
823 spend_cycles(1024);\r
824 gettimeofday(&tval, 0);\r
825 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
826 }\r
827}\r
828\r
829\r
830void emu_Loop(void)\r
831{\r
832 static int gp2x_old_clock = 200;\r
833 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
834 char fpsbuff[24]; // fps count c string\r
835 struct timeval tval; // timing\r
836 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
837 int target_fps, target_frametime, lim_time, i;\r
838 char *notice = 0;\r
839\r
840 printf("entered emu_Loop()\n");\r
841\r
842 if (gp2x_old_clock != currentConfig.CPUclock) {\r
843 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
844 set_FCLK(currentConfig.CPUclock);\r
845 gp2x_old_clock = currentConfig.CPUclock;\r
846 printf(" done\n");\r
847 }\r
848\r
849 if (gp2x_old_gamma != currentConfig.gamma) {\r
850 set_gamma(currentConfig.gamma);\r
851 gp2x_old_gamma = currentConfig.gamma;\r
852 printf("updated gamma to %i\n", currentConfig.gamma);\r
853 }\r
854\r
855 fpsbuff[0] = 0;\r
856\r
857 // make sure we are in correct mode\r
858 vidResetMode();\r
859 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
860 find_combos();\r
861\r
862 // pal/ntsc might have changed, reset related stuff\r
863 target_fps = Pico.m.pal ? 50 : 60;\r
864 target_frametime = 1000000/target_fps;\r
865 reset_timing = 1;\r
866\r
867 // prepare sound stuff\r
868 if(currentConfig.EmuOpt & 4) {\r
869 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
870 /* if 940 is turned off, we need it to be put back to sleep */\r
871 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
872 Reset940(1);\r
873 Pause940(1);\r
874 }\r
875 sound_rerate();\r
876 }\r
877 //excess_samples = PsndRate - PsndLen*target_fps;\r
878 snd_excess_cnt = 0;\r
879 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
880 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
881 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
882 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
883 PicoWriteSound = updateSound;\r
884 PsndOut = calloc((PicoOpt&8) ? (PsndLen*4+4) : (PsndLen*2+2), 1);\r
885 PsndRate_old = PsndRate;\r
886 PsndLen_real = PsndLen;\r
887 PicoOpt_old = PicoOpt;\r
888 pal_old = Pico.m.pal;\r
889 } else {\r
890 PsndOut = 0;\r
891 }\r
892\r
893 // loop?\r
894 while (engineState == PGS_Running)\r
895 {\r
896 int modes;\r
897\r
898 gettimeofday(&tval, 0);\r
899 if(reset_timing) {\r
900 reset_timing = 0;\r
901 thissec = tval.tv_sec;\r
902 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
903 }\r
904\r
905 // show notice message?\r
906 if(noticeMsgTime.tv_sec) {\r
907 static int noticeMsgSum;\r
908 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
909 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
910 clearArea(0);\r
911 notice = 0;\r
912 } else {\r
913 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
914 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
915 notice = noticeMsg;\r
916 }\r
917 }\r
918\r
919 // check for mode changes\r
920 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
921 if (modes != oldmodes) {\r
922 int scalex = 320;\r
923 osd_fps_x = OSD_FPS_X;\r
924 if (modes & 4) {\r
925 vidCpyM2 = vidCpyM2_40col;\r
926 } else {\r
927 if (PicoOpt & 0x100) {\r
928 vidCpyM2 = vidCpyM2_32col_nobord;\r
929 scalex = 256;\r
930 osd_fps_x = OSD_FPS_X - 64;\r
931 } else {\r
932 vidCpyM2 = vidCpyM2_32col;\r
933 }\r
934 }\r
935 gp2x_video_RGB_setscaling(scalex, 240);\r
936 oldmodes = modes;\r
937 clearArea(1);\r
938 }\r
939\r
940 // second changed?\r
941 if(thissec != tval.tv_sec) {\r
942#ifdef BENCHMARK\r
943 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
944 if(++bench == 10) {\r
945 bench = 0;\r
946 bench_fps_s = bench_fps;\r
947 bf[bfp++ & 3] = bench_fps;\r
948 bench_fps = 0;\r
949 }\r
950 bench_fps += frames_shown;\r
951 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
952#else\r
953 if(currentConfig.EmuOpt & 2)\r
954 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
955#endif\r
956 thissec = tval.tv_sec;\r
957\r
958 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
959 frames_done = frames_shown = 0;\r
960 } else {\r
961 // it is quite common for this implementation to leave 1 fame unfinished\r
962 // when second changes, but we don't want buffer to starve.\r
963 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
964 updateKeys();\r
965 SkipFrame(1); frames_done++;\r
966 }\r
967\r
968 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
969 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
970 if (frames_shown > frames_done) frames_shown = frames_done;\r
971 }\r
972 }\r
973\r
974 lim_time = (frames_done+1) * target_frametime;\r
975 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
976 for(i = 0; i < currentConfig.Frameskip; i++) {\r
977 updateKeys();\r
978 SkipFrame(1); frames_done++;\r
979 if (PsndOut) { // do framelimitting if sound is enabled\r
980 gettimeofday(&tval, 0);\r
981 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
982 if(tval.tv_usec < lim_time) { // we are too fast\r
983 simpleWait(thissec, lim_time);\r
984 }\r
985 }\r
986 lim_time += target_frametime;\r
987 }\r
988 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
989 // no time left for this frame - skip\r
990 updateKeys();\r
991 SkipFrame(tval.tv_usec < lim_time+target_frametime); frames_done++;\r
992 continue;\r
993 }\r
994\r
995 updateKeys();\r
996 PicoFrame();\r
997\r
4f672280 998#if 0\r
999 // debug\r
1000 {\r
1001 static unsigned char oldscr[320*240*2];\r
1002 FILE *f; char name[128]; int i;\r
1003 for (i = 0; i < 320*240*2; i++)\r
1004 if(oldscr[i] != ((unsigned char *)gp2x_screen)[i]) break;\r
1005 if (i < 320*240*2)\r
1006 {\r
1007 for (i = 0; i < 320*240*2; i++)\r
1008 oldscr[i] = ((unsigned char *)gp2x_screen)[i];\r
1009 sprintf(name, "%05i.raw", frame_count);\r
1010 f = fopen(name, "wb");\r
1011 if (!f) { printf("!f\n"); exit(1); }\r
1012 fwrite(gp2x_screen, 1, 320*240*2, f);\r
1013 fclose(f);\r
1014 }\r
1015 }\r
1016#endif\r
1017\r
cc68a136 1018 // check time\r
1019 gettimeofday(&tval, 0);\r
1020 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1021\r
1022 // sleep if we are still too fast\r
1023 if(PsndOut != 0 || currentConfig.Frameskip < 0)\r
1024 {\r
1025 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
1026 gettimeofday(&tval, 0);\r
1027 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1028 if(tval.tv_usec < lim_time)\r
1029 {\r
1030 // we are too fast\r
1031 simpleWait(thissec, lim_time);\r
1032 }\r
1033 }\r
1034\r
1035 blit(fpsbuff, notice);\r
1036\r
1037 frames_done++; frames_shown++;\r
1038 }\r
1039\r
1040 // save SRAM\r
1041 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
1042 emu_SaveLoadGame(0, 1);\r
1043 SRam.changed = 0;\r
1044 }\r
1045\r
1046 if (PsndOut != 0) {\r
1047 free(PsndOut);\r
1048 PsndOut = 0;\r
1049 }\r
1050}\r
1051\r
1052\r
1053void emu_ResetGame(void)\r
1054{\r
1055 PicoReset(0);\r
1056 reset_timing = 1;\r
1057}\r
1058\r
1059\r
1060size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1061{\r
1062 return gzread(file, p, _n);\r
1063}\r
1064\r
1065\r
1066size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1067{\r
1068 return gzwrite(file, p, _n);\r
1069}\r
1070\r
1071typedef unsigned int (*STATE_SL_FUNC)(void *, unsigned int, unsigned int, void *);\r
1072\r
1073int emu_SaveLoadGame(int load, int sram)\r
1074{\r
1075 int ret = 0;\r
1076 char saveFname[512];\r
1077\r
1078 // make save filename\r
1079 romfname_ext(saveFname, "");\r
1080 if(sram) strcat(saveFname, ".srm");\r
1081 else {\r
1082 if(state_slot > 0 && state_slot < 10) sprintf(saveFname, "%s.%i", saveFname, state_slot);\r
1083 strcat(saveFname, ".mds");\r
1084 }\r
1085\r
1086 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1087\r
1088 if(sram) {\r
1089 FILE *sramFile;\r
1090 int sram_size = SRam.end-SRam.start+1;\r
1091 if(SRam.reg_back & 4) sram_size=0x2000;\r
1092 if(!SRam.data) return 0; // SRam forcefully disabled for this game\r
1093 if(load) {\r
1094 sramFile = fopen(saveFname, "rb");\r
1095 if(!sramFile) return -1;\r
1096 fread(SRam.data, 1, sram_size, sramFile);\r
1097 fclose(sramFile);\r
1098 } else {\r
1099 // sram save needs some special processing\r
1100 // see if we have anything to save\r
1101 for(; sram_size > 0; sram_size--)\r
1102 if(SRam.data[sram_size-1]) break;\r
1103\r
1104 if(sram_size) {\r
1105 sramFile = fopen(saveFname, "wb");\r
1106 ret = fwrite(SRam.data, 1, sram_size, sramFile);\r
1107 ret = (ret != sram_size) ? -1 : 0;\r
1108 fclose(sramFile);\r
1109 sync();\r
1110 }\r
1111 }\r
1112 return ret;\r
1113 } else {\r
1114 void *PmovFile = NULL;\r
1115 // try gzip first\r
1116 if(currentConfig.EmuOpt & 8) {\r
1117 strcat(saveFname, ".gz");\r
1118 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
1119 areaRead = gzRead2;\r
1120 areaWrite = gzWrite2;\r
1121 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
1122 } else\r
1123 saveFname[strlen(saveFname)-3] = 0;\r
1124 }\r
1125 if(!PmovFile) { // gzip failed or was disabled\r
1126 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
1127 areaRead = (STATE_SL_FUNC) fread;\r
1128 areaWrite = (STATE_SL_FUNC) fwrite;\r
1129 }\r
1130 }\r
1131 if(PmovFile) {\r
1132 PmovState(load ? 6 : 5, PmovFile);\r
1133 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
1134 if(areaRead == gzRead2)\r
1135 gzclose(PmovFile);\r
1136 else fclose ((FILE *) PmovFile);\r
1137 PmovFile = 0;\r
1138 if (!load) sync();\r
1139 else Pico.m.dirtyPal=1;\r
1140 } else {\r
1141 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
1142 ret = -1;\r
1143 }\r
1144\r
1145 gettimeofday(&noticeMsgTime, 0);\r
1146 return ret;\r
1147 }\r
1148}\r
fast MegaDrive/MegaCD/32X emulator