1 // (c) Copyright 2006 notaz, All rights reserved.
\r
2 // Free for non-commercial use.
\r
4 // For commercial use, separate licencing terms must be obtained.
\r
8 #include <sys/time.h>
\r
9 #include <linux/limits.h>
\r
19 #include "asmutils.h"
\r
20 #include "cpuctrl.h"
\r
22 #include "Pico/PicoInt.h"
\r
23 #include "zlib/zlib.h"
\r
27 #define OSD_FPS_X 220
\r
29 #define OSD_FPS_X 260
\r
32 // PicoPad[] format: SACB RLDU
\r
33 char *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
42 int select_exits = 0;
\r
43 char *PicoConfigFile = "picoconfig.bin";
\r
44 currentConfig_t currentConfig;
\r
46 char romFileName[PATH_MAX];
\r
47 unsigned char *rom_data = NULL;
\r
49 extern int crashed_940;
\r
51 static char noticeMsg[64]; // notice msg to draw
\r
52 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing
\r
53 static int reset_timing, osd_fps_x;
\r
54 static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos
\r
55 static int gp2x_old_gamma = 100;
\r
56 static unsigned char *movie_data = NULL;
\r
57 static int movie_size = 0;
\r
58 unsigned char *framebuff = 0; // temporary buffer for alt renderer
\r
63 static FILE *logf = NULL;
\r
65 void pprintf(char *texto, ...)
\r
69 va_start(args,texto);
\r
70 vfprintf(logf,texto,args);
\r
77 static void strlwr(char* string)
\r
79 while ( (*string++ = (char)tolower(*string)) );
\r
82 static int try_rfn_cut(void)
\r
87 p = romFileName + strlen(romFileName) - 1;
\r
88 for (; p > romFileName; p--)
\r
89 if (*p == '.') break;
\r
92 if((tmp = fopen(romFileName, "rb"))) {
\r
99 static void get_ext(char *file, char *ext)
\r
103 p = file + strlen(file) - 4;
\r
104 if (p < file) p = file;
\r
105 strncpy(ext, p, 4);
\r
110 char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };
\r
111 char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };
\r
112 char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
\r
114 extern char **g_argv;
\r
116 int find_bios(int region, char **bios_file)
\r
118 static char bios_path[1024];
\r
123 if (region == 4) { // US
\r
124 files = biosfiles_us;
\r
125 count = sizeof(biosfiles_us) / sizeof(char *);
\r
126 } else if (region == 8) { // EU
\r
127 files = biosfiles_eu;
\r
128 count = sizeof(biosfiles_eu) / sizeof(char *);
\r
129 } else if (region == 1 || region == 2) {
\r
130 files = biosfiles_jp;
\r
131 count = sizeof(biosfiles_jp) / sizeof(char *);
\r
136 for (i = 0; i < count; i++)
\r
138 strncpy(bios_path, g_argv[0], 1023);
\r
139 bios_path[1024-32] = 0;
\r
140 for (j = strlen(bios_path); j > 0; j--)
\r
141 if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }
\r
142 strcat(bios_path, files[i]);
\r
143 strcat(bios_path, ".bin");
\r
144 f = fopen(bios_path, "rb");
\r
147 bios_path[strlen(bios_path) - 4] = 0;
\r
148 strcat(bios_path, ".zip");
\r
149 f = fopen(bios_path, "rb");
\r
154 printf("using bios: %s\n", bios_path);
\r
156 if (bios_file) *bios_file = bios_path;
\r
159 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",
\r
160 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
\r
161 printf("%s\n", menuErrorMsg);
\r
166 /* checks if romFileName points to valid MegaCD image
\r
167 * if so, checks for suitable BIOS */
\r
168 static int cd_check(char *ext, char **bios_file)
\r
170 unsigned char buf[32];
\r
172 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe
\r
174 cd_f = fopen(romFileName, "rb");
\r
175 if (!cd_f) return 0; // let the upper level handle this
\r
177 if (fread(buf, 1, 32, cd_f) != 32) {
\r
182 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)
\r
183 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)
\r
189 /* it seems we have a CD image here. Try to detect region and load a suitable BIOS now.. */
\r
190 fseek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
\r
191 fread(buf, 1, 1, cd_f);
\r
194 if (buf[0] == 0x64) region = 8; // EU
\r
195 if (buf[0] == 0xa1) region = 1; // JAP
\r
197 printf("detected %s Sega/Mega CD image with %s region\n",
\r
198 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
\r
200 if (PicoRegionOverride) {
\r
201 region = PicoRegionOverride;
\r
202 printf("overrided region to %s\n", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
\r
205 if(find_bios(region, bios_file))
\r
206 return type; // CD and BIOS detected
\r
208 return -1; // CD detected but load failed
\r
211 int emu_ReloadRom(void)
\r
213 unsigned int rom_size = 0;
\r
214 char *used_rom_name = romFileName;
\r
219 printf("emu_ReloadRom(%s)\n", romFileName);
\r
221 get_ext(romFileName, ext);
\r
223 // detect wrong extensions
\r
224 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz
\r
225 sprintf(menuErrorMsg, "Not a ROM selected.");
\r
229 // check for movie file
\r
234 if(!strcmp(ext, ".gmv")) {
\r
235 // check for both gmv and rom
\r
237 FILE *movie_file = fopen(romFileName, "rb");
\r
239 sprintf(menuErrorMsg, "Failed to open movie.");
\r
242 fseek(movie_file, 0, SEEK_END);
\r
243 movie_size = ftell(movie_file);
\r
244 fseek(movie_file, 0, SEEK_SET);
\r
245 if(movie_size < 64+3) {
\r
246 sprintf(menuErrorMsg, "Invalid GMV file.");
\r
247 fclose(movie_file);
\r
250 movie_data = malloc(movie_size);
\r
251 if(movie_data == NULL) {
\r
252 sprintf(menuErrorMsg, "low memory.");
\r
253 fclose(movie_file);
\r
256 fread(movie_data, 1, movie_size, movie_file);
\r
257 fclose(movie_file);
\r
258 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
\r
259 sprintf(menuErrorMsg, "Invalid GMV file.");
\r
262 dummy = try_rfn_cut() || try_rfn_cut();
\r
264 sprintf(menuErrorMsg, "Could't find a ROM for movie.");
\r
267 get_ext(romFileName, ext);
\r
270 // check for MegaCD image
\r
271 cd_state = cd_check(ext, &used_rom_name);
\r
272 if (cd_state > 0) {
\r
274 get_ext(used_rom_name, ext);
\r
275 } else if (cd_state == -1) {
\r
279 if (PicoMCD & 1) PicoExitMCD();
\r
283 rom = fopen(used_rom_name, "rb");
\r
285 sprintf(menuErrorMsg, "Failed to open rom.");
\r
296 if(!strcasecmp(ext, ".zip")) {
\r
298 ret = CartLoadZip(used_rom_name, &rom_data, &rom_size);
\r
300 if (ret == 4) strcpy(menuErrorMsg, "No ROMs found in zip.");
\r
301 else sprintf(menuErrorMsg, "Unzip failed with code %i", ret);
\r
302 printf("%s\n", menuErrorMsg);
\r
306 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
\r
307 sprintf(menuErrorMsg, "PicoCartLoad() failed.");
\r
308 printf("%s\n", menuErrorMsg);
\r
315 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good
\r
316 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
\r
317 ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {
\r
318 if (rom_data) free(rom_data);
\r
320 sprintf(menuErrorMsg, "Not a ROM selected.");
\r
324 // load config for this ROM (do this before insert to get correct region)
\r
325 ret = emu_ReadConfig(1);
\r
329 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
\r
330 if(PicoCartInsert(rom_data, rom_size)) {
\r
331 sprintf(menuErrorMsg, "Failed to load ROM.");
\r
335 Pico.m.frame_count = 0;
\r
337 // insert CD if it was detected
\r
338 if (cd_state > 0) {
\r
339 ret = Insert_CD(romFileName, cd_state == 2);
\r
341 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");
\r
342 printf("%s\n", menuErrorMsg);
\r
347 // emu_ReadConfig() might have messed currentConfig.lastRomFile
\r
348 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);
\r
349 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;
\r
351 // additional movie stuff
\r
353 if(movie_data[0x14] == '6')
\r
354 PicoOpt |= 0x20; // 6 button pad
\r
355 else PicoOpt &= ~0x20;
\r
356 PicoOpt |= 0x40; // accurate timing
\r
357 if(movie_data[0xF] >= 'A') {
\r
358 if(movie_data[0x16] & 0x80) {
\r
359 PicoRegionOverride = 8;
\r
361 PicoRegionOverride = 4;
\r
364 // TODO: bits 6 & 5
\r
366 movie_data[0x18+30] = 0;
\r
367 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);
\r
372 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");
\r
374 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");
\r
377 gettimeofday(¬iceMsgTime, 0);
\r
379 // load SRAM for this ROM
\r
380 if(currentConfig.EmuOpt & 1)
\r
381 emu_SaveLoadGame(1, 1);
\r
387 void emu_Init(void)
\r
389 // make temp buffer for alt renderer
\r
390 framebuff = malloc((8+320)*(8+240+8));
\r
393 printf("framebuff == 0\n");
\r
398 // logf = fopen("log.txt", "w");
\r
402 static void romfname_ext(char *dst, char *ext)
\r
406 // make save filename
\r
407 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;
\r
408 strncpy(dst, p, 511);
\r
410 if(dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;
\r
415 static void find_combos(void)
\r
419 // find out which keys and actions are combos
\r
420 combo_keys = combo_acts = 0;
\r
421 for (act = 0; act < 32; act++)
\r
424 if (act == 16) continue; // player2 flag
\r
425 for (u = 0; u < 32; u++)
\r
427 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;
\r
431 // loop again and mark those keys and actions as combo
\r
432 for (u = 0; u < 32; u++)
\r
434 if (currentConfig.KeyBinds[u] & (1 << act)) {
\r
435 combo_keys |= 1 << u;
\r
436 combo_acts |= 1 << act;
\r
441 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);
\r
445 int emu_ReadConfig(int game)
\r
453 // set default config
\r
454 memset(¤tConfig, 0, sizeof(currentConfig));
\r
455 currentConfig.lastRomFile[0] = 0;
\r
456 currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds
\r
457 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda
\r
458 currentConfig.PsndRate = 22050; // 44100;
\r
459 currentConfig.PicoRegion = 0; // auto
\r
460 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP
\r
461 currentConfig.Frameskip = -1; // auto
\r
462 currentConfig.CPUclock = 200;
\r
463 currentConfig.volume = 50;
\r
464 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU
\r
465 currentConfig.KeyBinds[ 4] = 1<<1;
\r
466 currentConfig.KeyBinds[ 2] = 1<<2;
\r
467 currentConfig.KeyBinds[ 6] = 1<<3;
\r
468 currentConfig.KeyBinds[14] = 1<<4;
\r
469 currentConfig.KeyBinds[13] = 1<<5;
\r
470 currentConfig.KeyBinds[12] = 1<<6;
\r
471 currentConfig.KeyBinds[ 8] = 1<<7;
\r
472 currentConfig.KeyBinds[15] = 1<<26; // switch rend
\r
473 currentConfig.KeyBinds[10] = 1<<27; // save state
\r
474 currentConfig.KeyBinds[11] = 1<<28; // load state
\r
475 currentConfig.KeyBinds[23] = 1<<29; // vol up
\r
476 currentConfig.KeyBinds[22] = 1<<30; // vol down
\r
477 currentConfig.gamma = 100;
\r
478 strncpy(cfg, PicoConfigFile, 511);
\r
481 romfname_ext(cfg, ".pbcfg");
\r
484 printf("emu_ReadConfig: %s ", cfg);
\r
485 f = fopen(cfg, "rb");
\r
487 bread = fread(¤tConfig, 1, sizeof(currentConfig), f);
\r
490 printf((bread == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");
\r
492 PicoOpt = currentConfig.PicoOpt;
\r
493 PsndRate = currentConfig.PsndRate;
\r
494 PicoRegionOverride = currentConfig.PicoRegion;
\r
495 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;
\r
496 if (PicoOpt & 0x20) {
\r
497 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";
\r
498 actionNames[10] = "X"; actionNames[11] = "MODE";
\r
500 // some sanity checks
\r
501 if (currentConfig.CPUclock < 1 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
\r
502 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;
\r
503 // if volume keys are unbound, bind them to volume control
\r
504 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {
\r
505 currentConfig.KeyBinds[23] = 1<<29; // vol up
\r
506 currentConfig.KeyBinds[22] = 1<<30; // vol down
\r
509 return (bread == sizeof(currentConfig));
\r
513 int emu_WriteConfig(int game)
\r
521 strncpy(cfg, PicoConfigFile, 511);
\r
524 romfname_ext(cfg, ".pbcfg");
\r
527 printf("emu_WriteConfig: %s ", cfg);
\r
528 f = fopen(cfg, "wb");
\r
530 currentConfig.PicoOpt = PicoOpt;
\r
531 currentConfig.PsndRate = PsndRate;
\r
532 currentConfig.PicoRegion = PicoRegionOverride;
\r
533 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;
\r
534 bwrite = fwrite(¤tConfig, 1, sizeof(currentConfig), f);
\r
539 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");
\r
541 return (bwrite == sizeof(currentConfig));
\r
545 void emu_Deinit(void)
\r
548 if((currentConfig.EmuOpt & 1) && SRam.changed) {
\r
549 emu_SaveLoadGame(0, 1);
\r
553 if (!(currentConfig.EmuOpt & 0x20))
\r
554 emu_WriteConfig(0);
\r
561 if (gp2x_old_gamma != 100)
\r
566 void osd_text(int x, int y, char *text)
\r
568 int len = strlen(text)*8;
\r
570 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
572 x &= ~3; // align x
\r
573 len = (len+3) >> 2;
\r
574 for (h = 0; h < 8; h++) {
\r
575 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));
\r
576 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
\r
578 gp2x_text_out8_2(x, y, text, 0xf0);
\r
581 x &= ~1; // align x
\r
582 len = (len+1) >> 1;
\r
583 for (h = 0; h < 8; h++) {
\r
584 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));
\r
585 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;
\r
587 gp2x_text_out15(x, y, text);
\r
591 static void cd_leds(void)
\r
596 // if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change
\r
597 old_reg = Pico_mcd->s68k_regs[0];
\r
599 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
601 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
\r
602 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
\r
603 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =
\r
604 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =
\r
605 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;
\r
606 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =
\r
607 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =
\r
608 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;
\r
611 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);
\r
612 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
\r
613 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
\r
614 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
\r
615 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
\r
616 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
\r
620 static int EmuScan16(unsigned int num, void *sdata)
\r
622 if (!(Pico.video.reg[1]&8)) num += 8;
\r
623 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);
\r
628 static int EmuScan8(unsigned int num, void *sdata)
\r
630 if (!(Pico.video.reg[1]&8)) num += 8;
\r
631 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);
\r
636 static int localPal[0x100];
\r
637 static void (*vidCpyM2)(void *dest, void *src) = NULL;
\r
639 static void blit(char *fps, char *notice)
\r
641 int emu_opt = currentConfig.EmuOpt;
\r
643 if (PicoOpt&0x10) {
\r
644 // 8bit fast renderer
\r
645 if (Pico.m.dirtyPal) {
\r
646 Pico.m.dirtyPal = 0;
\r
647 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
648 // feed new palette to our device
\r
649 gp2x_video_setpalette(localPal, 0x40);
\r
651 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);
\r
652 } else if (!(emu_opt&0x80)) {
\r
653 // 8bit accurate renderer
\r
654 if (Pico.m.dirtyPal) {
\r
655 Pico.m.dirtyPal = 0;
\r
656 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode
\r
657 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
658 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
\r
659 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
\r
660 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);
\r
661 localPal[0xc0] = 0x0000c000;
\r
662 localPal[0xd0] = 0x00c00000;
\r
663 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
\r
664 localPal[0xf0] = 0x00ffffff;
\r
665 gp2x_video_setpalette(localPal, 0x100);
\r
666 } else if (rendstatus & 0x20) { // mid-frame palette changes
\r
667 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
668 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
\r
669 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
\r
670 gp2x_video_setpalette(localPal, 0xc0);
\r
672 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
673 gp2x_video_setpalette(localPal, 0x40);
\r
678 if (notice) osd_text(4, 232, notice);
\r
680 osd_text(osd_fps_x, 232, fps);
\r
681 if ((emu_opt & 0x400) && (PicoMCD & 1))
\r
684 //gp2x_video_wait_vsync();
\r
687 if (!(PicoOpt&0x10)) {
\r
688 if (!(Pico.video.reg[1]&8)) {
\r
689 if (currentConfig.EmuOpt&0x80) {
\r
690 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;
\r
692 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;
\r
695 DrawLineDest = gp2x_screen;
\r
701 // clears whole screen or just the notice area (in all buffers)
\r
702 static void clearArea(int full)
\r
704 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
706 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
\r
707 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
\r
709 // 16bit accurate renderer
\r
710 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);
\r
711 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
\r
716 static void vidResetMode(void)
\r
718 if (PicoOpt&0x10) {
\r
719 gp2x_video_changemode(8);
\r
720 } else if (currentConfig.EmuOpt&0x80) {
\r
721 gp2x_video_changemode(15);
\r
722 PicoDrawSetColorFormat(1);
\r
723 PicoScan = EmuScan16;
\r
726 gp2x_video_changemode(8);
\r
727 PicoDrawSetColorFormat(2);
\r
728 PicoScan = EmuScan8;
\r
731 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
732 // setup pal for 8-bit modes
\r
733 localPal[0xc0] = 0x0000c000; // MCD LEDs
\r
734 localPal[0xd0] = 0x00c00000;
\r
735 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
\r
736 localPal[0xf0] = 0x00ffffff;
\r
737 gp2x_video_setpalette(localPal, 0x100);
\r
738 gp2x_memset_all_buffers(0, 0xe0, 320*240);
\r
741 Pico.m.dirtyPal = 1;
\r
743 gp2x_video_RGB_setscaling((PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
\r
747 static int check_save_file(void)
\r
749 char saveFname[512];
\r
754 if(state_slot > 0 && state_slot < 10) sprintf(ext, ".%i", state_slot);
\r
755 strcat(ext, ".mds");
\r
756 if(currentConfig.EmuOpt & 8) strcat(ext, ".gz");
\r
758 romfname_ext(saveFname, ext);
\r
759 if ((f = fopen(saveFname, "rb"))) {
\r
766 static void RunEvents(unsigned int which)
\r
768 if(which & 0x1800) { // save or load (but not both)
\r
770 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && check_save_file()) {
\r
771 unsigned long keys;
\r
772 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");
\r
773 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )
\r
775 if (keys & GP2X_X) do_it = 0;
\r
779 blit("", (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
\r
780 emu_SaveLoadGame(which & 0x1000, 0);
\r
785 if(which & 0x0400) { // switch renderer
\r
786 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
\r
787 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;
\r
788 else currentConfig.EmuOpt &= ~0x80;
\r
792 if (PicoOpt&0x10) {
\r
793 strcpy(noticeMsg, " 8bit fast renderer");
\r
794 } else if (currentConfig.EmuOpt&0x80) {
\r
795 strcpy(noticeMsg, "16bit accurate renderer");
\r
797 strcpy(noticeMsg, " 8bit accurate renderer");
\r
800 gettimeofday(¬iceMsgTime, 0);
\r
802 if(which & 0x0300) {
\r
805 if(state_slot < 0) state_slot = 9;
\r
808 if(state_slot > 9) state_slot = 0;
\r
810 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, check_save_file() ? "USED" : "FREE");
\r
811 gettimeofday(¬iceMsgTime, 0);
\r
813 if(which & 0x0080) {
\r
814 engineState = PGS_Menu;
\r
819 static void updateMovie(void)
\r
821 int offs = Pico.m.frame_count*3 + 0x40;
\r
822 if (offs+3 > movie_size) {
\r
825 strcpy(noticeMsg, "END OF MOVIE.");
\r
826 printf("END OF MOVIE.\n");
\r
827 gettimeofday(¬iceMsgTime, 0);
\r
830 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
\r
831 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A
\r
832 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B
\r
833 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A
\r
834 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
\r
835 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A
\r
836 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B
\r
837 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A
\r
838 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
\r
839 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
\r
840 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
\r
841 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
\r
842 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
\r
843 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
\r
848 static void updateKeys(void)
\r
850 unsigned long keys, allActions[2] = { 0, 0 }, events;
\r
851 static unsigned long prevEvents = 0;
\r
854 keys = gp2x_joystick_read(0);
\r
855 if (keys & GP2X_SELECT) {
\r
856 engineState = select_exits ? PGS_Quit : PGS_Menu;
\r
857 // wait until select is released, so menu would not resume game
\r
858 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);
\r
861 keys &= CONFIGURABLE_KEYS;
\r
863 for (i = 0; i < 32; i++)
\r
865 if (keys & (1 << i)) {
\r
866 int pl, acts = currentConfig.KeyBinds[i];
\r
867 if (!acts) continue;
\r
868 pl = (acts >> 16) & 1;
\r
869 if (combo_keys & (1 << i)) {
\r
870 int u = i+1, acts_c = acts & combo_acts;
\r
871 // let's try to find the other one
\r
873 for (; u < 32; u++)
\r
874 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {
\r
875 allActions[pl] |= acts_c;
\r
876 keys &= ~((1 << i) | (1 << u));
\r
879 // add non-combo actions if combo ones were not found
\r
880 if (!acts_c || u == 32)
\r
881 allActions[pl] |= acts & ~combo_acts;
\r
883 allActions[pl] |= acts;
\r
889 if (num_of_joys > 0)
\r
891 gp2x_usbjoy_update();
\r
892 for (joy = 0; joy < num_of_joys; joy++) {
\r
893 int keys = gp2x_usbjoy_check2(joy);
\r
894 for (i = 0; i < 32; i++) {
\r
895 if (keys & (1 << i)) {
\r
896 int acts = currentConfig.JoyBinds[joy][i];
\r
897 int pl = (acts >> 16) & 1;
\r
898 allActions[pl] |= acts;
\r
904 PicoPad[0] = (unsigned short) allActions[0];
\r
905 PicoPad[1] = (unsigned short) allActions[1];
\r
907 events = (allActions[0] | allActions[1]) >> 16;
\r
909 // volume is treated in special way and triggered every frame
\r
910 if(events & 0x6000) {
\r
911 int vol = currentConfig.volume;
\r
912 if (events & 0x2000) {
\r
913 if (vol < 90) vol++;
\r
915 if (vol > 0) vol--;
\r
917 gp2x_sound_volume(vol, vol);
\r
918 sprintf(noticeMsg, "VOL: %02i", vol);
\r
919 gettimeofday(¬iceMsgTime, 0);
\r
920 currentConfig.volume = vol;
\r
923 events &= ~prevEvents;
\r
924 if (events) RunEvents(events);
\r
925 if (movie_data) updateMovie();
\r
927 prevEvents = (allActions[0] | allActions[1]) >> 16;
\r
930 static int snd_excess_add = 0, snd_excess_cnt = 0; // hack
\r
932 static void updateSound(void)
\r
934 int len = (PicoOpt&8)?PsndLen*2:PsndLen;
\r
936 snd_excess_cnt += snd_excess_add;
\r
937 if (snd_excess_cnt >= 0x10000) {
\r
938 snd_excess_cnt -= 0x10000;
\r
940 PsndOut[len] = PsndOut[len-2];
\r
941 PsndOut[len+1] = PsndOut[len-1];
\r
944 PsndOut[len] = PsndOut[len-1];
\r
949 gp2x_sound_write(PsndOut, len<<1);
\r
953 static void SkipFrame(int do_sound)
\r
955 void *sndbuff_tmp = 0;
\r
956 if (PsndOut && !do_sound) {
\r
957 sndbuff_tmp = PsndOut;
\r
965 if (sndbuff_tmp && !do_sound) {
\r
966 PsndOut = sndbuff_tmp;
\r
971 static void simpleWait(int thissec, int lim_time)
\r
973 struct timeval tval;
\r
975 spend_cycles(1024);
\r
976 gettimeofday(&tval, 0);
\r
977 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
979 while(tval.tv_usec < lim_time)
\r
981 spend_cycles(1024);
\r
982 gettimeofday(&tval, 0);
\r
983 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
988 void emu_Loop(void)
\r
990 static int gp2x_old_clock = 200;
\r
991 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;
\r
992 char fpsbuff[24]; // fps count c string
\r
993 struct timeval tval; // timing
\r
994 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;
\r
995 int target_fps, target_frametime, lim_time, i;
\r
998 printf("entered emu_Loop()\n");
\r
1000 if (gp2x_old_clock != currentConfig.CPUclock) {
\r
1001 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
\r
1002 set_FCLK(currentConfig.CPUclock);
\r
1003 gp2x_old_clock = currentConfig.CPUclock;
\r
1004 printf(" done\n");
\r
1007 if (gp2x_old_gamma != currentConfig.gamma) {
\r
1008 set_gamma(currentConfig.gamma);
\r
1009 gp2x_old_gamma = currentConfig.gamma;
\r
1010 printf("updated gamma to %i\n", currentConfig.gamma);
\r
1015 // make sure we are in correct mode
\r
1017 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
1020 // pal/ntsc might have changed, reset related stuff
\r
1021 target_fps = Pico.m.pal ? 50 : 60;
\r
1022 target_frametime = 1000000/target_fps;
\r
1025 // prepare sound stuff
\r
1026 if(currentConfig.EmuOpt & 4) {
\r
1027 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {
\r
1028 /* if 940 is turned off, we need it to be put back to sleep */
\r
1029 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {
\r
1035 //excess_samples = PsndRate - PsndLen*target_fps;
\r
1036 snd_excess_cnt = 0;
\r
1037 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
\r
1038 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
1039 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);
\r
1040 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);
\r
1041 PicoWriteSound = updateSound;
\r
1042 PsndOut = calloc((PicoOpt&8) ? (PsndLen*4+4) : (PsndLen*2+2), 1);
\r
1043 PsndRate_old = PsndRate;
\r
1044 PsndLen_real = PsndLen;
\r
1045 PicoOpt_old = PicoOpt;
\r
1046 pal_old = Pico.m.pal;
\r
1052 while (engineState == PGS_Running)
\r
1056 gettimeofday(&tval, 0);
\r
1057 if(reset_timing) {
\r
1059 thissec = tval.tv_sec;
\r
1060 frames_shown = frames_done = tval.tv_usec/target_frametime;
\r
1063 // show notice message?
\r
1064 if(noticeMsgTime.tv_sec) {
\r
1065 static int noticeMsgSum;
\r
1066 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec
\r
1067 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;
\r
1071 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
\r
1072 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
\r
1073 notice = noticeMsg;
\r
1077 // check for mode changes
\r
1078 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
\r
1079 if (modes != oldmodes) {
\r
1081 osd_fps_x = OSD_FPS_X;
\r
1083 vidCpyM2 = vidCpyM2_40col;
\r
1085 if (PicoOpt & 0x100) {
\r
1086 vidCpyM2 = vidCpyM2_32col_nobord;
\r
1088 osd_fps_x = OSD_FPS_X - 64;
\r
1090 vidCpyM2 = vidCpyM2_32col;
\r
1093 gp2x_video_RGB_setscaling(scalex, 240);
\r
1098 // second changed?
\r
1099 if(thissec != tval.tv_sec) {
\r
1101 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
1102 if(++bench == 10) {
\r
1104 bench_fps_s = bench_fps;
\r
1105 bf[bfp++ & 3] = bench_fps;
\r
1108 bench_fps += frames_shown;
\r
1109 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
1111 if(currentConfig.EmuOpt & 2)
\r
1112 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
1114 thissec = tval.tv_sec;
\r
1116 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {
\r
1117 frames_done = frames_shown = 0;
\r
1119 // it is quite common for this implementation to leave 1 fame unfinished
\r
1120 // when second changes, but we don't want buffer to starve.
\r
1121 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {
\r
1123 SkipFrame(1); frames_done++;
\r
1126 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
\r
1127 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
\r
1128 if (frames_shown > frames_done) frames_shown = frames_done;
\r
1132 lim_time = (frames_done+1) * target_frametime;
\r
1133 if(currentConfig.Frameskip >= 0) { // frameskip enabled
\r
1134 for(i = 0; i < currentConfig.Frameskip; i++) {
\r
1136 SkipFrame(1); frames_done++;
\r
1137 if (PsndOut) { // do framelimitting if sound is enabled
\r
1138 gettimeofday(&tval, 0);
\r
1139 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1140 if(tval.tv_usec < lim_time) { // we are too fast
\r
1141 simpleWait(thissec, lim_time);
\r
1144 lim_time += target_frametime;
\r
1146 } else if(tval.tv_usec > lim_time) { // auto frameskip
\r
1147 // no time left for this frame - skip
\r
1149 SkipFrame(tval.tv_usec < lim_time+target_frametime); frames_done++;
\r
1157 if (Pico.m.frame_count == 31563) {
\r
1159 f = fopen("ram_p.bin", "wb");
\r
1160 if (!f) { printf("!f\n"); exit(1); }
\r
1161 fwrite(Pico.ram, 1, 0x10000, f);
\r
1169 #define BYTE unsigned char
\r
1170 #define WORD unsigned short
\r
1173 BYTE IDLength; /* 00h Size of Image ID field */
\r
1174 BYTE ColorMapType; /* 01h Color map type */
\r
1175 BYTE ImageType; /* 02h Image type code */
\r
1176 WORD CMapStart; /* 03h Color map origin */
\r
1177 WORD CMapLength; /* 05h Color map length */
\r
1178 BYTE CMapDepth; /* 07h Depth of color map entries */
\r
1179 WORD XOffset; /* 08h X origin of image */
\r
1180 WORD YOffset; /* 0Ah Y origin of image */
\r
1181 WORD Width; /* 0Ch Width of image */
\r
1182 WORD Height; /* 0Eh Height of image */
\r
1183 BYTE PixelDepth; /* 10h Image pixel size */
\r
1184 BYTE ImageDescriptor; /* 11h Image descriptor byte */
\r
1185 } __attribute__((packed)) TGAHEAD;
\r
1186 static unsigned short oldscr[320*240];
\r
1187 FILE *f; char name[128]; int i;
\r
1189 memset(&TGAHEAD, 0, sizeof(TGAHEAD));
\r
1190 TGAHEAD.ImageType = 2;
\r
1191 TGAHEAD.Width = 320;
\r
1192 TGAHEAD.Height = 240;
\r
1193 TGAHEAD.PixelDepth = 16;
\r
1194 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
\r
1196 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
\r
1198 for (i = 0; i < 320*240; i++)
\r
1199 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;
\r
1202 for (i = 0; i < 320*240; i++)
\r
1203 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);
\r
1204 sprintf(name, "%05i.tga", Pico.m.frame_count);
\r
1205 f = fopen(name, "wb");
\r
1206 if (!f) { printf("!f\n"); exit(1); }
\r
1207 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
\r
1208 fwrite(oldscr, 1, 320*240*2, f);
\r
1215 gettimeofday(&tval, 0);
\r
1216 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1218 // sleep if we are still too fast
\r
1219 if(PsndOut != 0 || currentConfig.Frameskip < 0)
\r
1221 // usleep sleeps for ~20ms minimum, so it is not a solution here
\r
1222 gettimeofday(&tval, 0);
\r
1223 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1224 if(tval.tv_usec < lim_time)
\r
1226 // we are too fast
\r
1227 simpleWait(thissec, lim_time);
\r
1231 blit(fpsbuff, notice);
\r
1233 frames_done++; frames_shown++;
\r
1237 if((currentConfig.EmuOpt & 1) && SRam.changed) {
\r
1238 blit("", "Writing SRAM/BRAM..");
\r
1239 emu_SaveLoadGame(0, 1);
\r
1243 if (PsndOut != 0) {
\r
1250 void emu_ResetGame(void)
\r
1257 size_t gzRead2(void *p, size_t _size, size_t _n, void *file)
\r
1259 return gzread(file, p, _n);
\r
1263 size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)
\r
1265 return gzwrite(file, p, _n);
\r
1269 int emu_SaveLoadGame(int load, int sram)
\r
1272 char saveFname[512];
\r
1274 // make save filename
\r
1275 romfname_ext(saveFname, "");
\r
1276 if(sram) strcat(saveFname, (PicoMCD&1) ? ".brm" : ".srm");
\r
1278 if(state_slot > 0 && state_slot < 10) sprintf(saveFname, "%s.%i", saveFname, state_slot);
\r
1279 strcat(saveFname, ".mds");
\r
1282 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
\r
1287 unsigned char *sram_data;
\r
1289 sram_size = 0x2000;
\r
1290 sram_data = Pico_mcd->bram;
\r
1292 sram_size = SRam.end-SRam.start+1;
\r
1293 if(SRam.reg_back & 4) sram_size=0x2000;
\r
1294 sram_data = SRam.data;
\r
1296 if(!sram_data) return 0; // SRam forcefully disabled for this game
\r
1299 sramFile = fopen(saveFname, "rb");
\r
1300 if(!sramFile) return -1;
\r
1301 fread(sram_data, 1, sram_size, sramFile);
\r
1304 // sram save needs some special processing
\r
1305 // see if we have anything to save
\r
1306 for(; sram_size > 0; sram_size--)
\r
1307 if(sram_data[sram_size-1]) break;
\r
1310 sramFile = fopen(saveFname, "wb");
\r
1311 ret = fwrite(sram_data, 1, sram_size, sramFile);
\r
1312 ret = (ret != sram_size) ? -1 : 0;
\r
1321 void *PmovFile = NULL;
\r
1323 if(currentConfig.EmuOpt & 8) {
\r
1324 strcat(saveFname, ".gz");
\r
1325 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {
\r
1326 areaRead = gzRead2;
\r
1327 areaWrite = gzWrite2;
\r
1328 areaEof = (areaeof *) gzeof;
\r
1329 areaSeek = (areaseek *) gzseek;
\r
1330 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);
\r
1332 saveFname[strlen(saveFname)-3] = 0;
\r
1334 if(!PmovFile) { // gzip failed or was disabled
\r
1335 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {
\r
1336 areaRead = (arearw *) fread;
\r
1337 areaWrite = (arearw *) fwrite;
\r
1338 areaEof = (areaeof *) feof;
\r
1339 areaSeek = (areaseek *) fseek;
\r
1343 ret = PmovState(load ? 6 : 5, PmovFile);
\r
1344 if(areaRead == gzRead2)
\r
1345 gzclose(PmovFile);
\r
1346 else fclose ((FILE *) PmovFile);
\r
1348 if (!load) sync();
\r
1349 else Pico.m.dirtyPal=1;
\r
1353 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");
\r
1356 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");
\r
1360 gettimeofday(¬iceMsgTime, 0);
\r