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
282 rom = fopen(used_rom_name, "rb");
\r
284 sprintf(menuErrorMsg, "Failed to open rom.");
\r
295 if(!strcasecmp(ext, ".zip")) {
\r
297 ret = CartLoadZip(used_rom_name, &rom_data, &rom_size);
\r
299 if (ret == 4) strcpy(menuErrorMsg, "No ROMs found in zip.");
\r
300 else sprintf(menuErrorMsg, "Unzip failed with code %i", ret);
\r
301 printf("%s\n", menuErrorMsg);
\r
305 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
\r
306 sprintf(menuErrorMsg, "PicoCartLoad() failed.");
\r
307 printf("%s\n", menuErrorMsg);
\r
314 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good
\r
315 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
\r
316 ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {
\r
317 if (rom_data) free(rom_data);
\r
319 sprintf(menuErrorMsg, "Not a ROM selected.");
\r
323 // load config for this ROM (do this before insert to get correct region)
\r
324 ret = emu_ReadConfig(1);
\r
328 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
\r
329 if(PicoCartInsert(rom_data, rom_size)) {
\r
330 sprintf(menuErrorMsg, "Failed to load ROM.");
\r
334 Pico.m.frame_count = 0;
\r
336 // insert CD if it was detected
\r
337 if (cd_state > 0) {
\r
338 ret = Insert_CD(romFileName, cd_state == 2);
\r
340 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");
\r
341 printf("%s\n", menuErrorMsg);
\r
346 // emu_ReadConfig() might have messed currentConfig.lastRomFile
\r
347 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);
\r
348 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;
\r
350 // additional movie stuff
\r
352 if(movie_data[0x14] == '6')
\r
353 PicoOpt |= 0x20; // 6 button pad
\r
354 else PicoOpt &= ~0x20;
\r
355 PicoOpt |= 0x40; // accurate timing
\r
356 if(movie_data[0xF] >= 'A') {
\r
357 if(movie_data[0x16] & 0x80) {
\r
358 PicoRegionOverride = 8;
\r
360 PicoRegionOverride = 4;
\r
363 // TODO: bits 6 & 5
\r
365 movie_data[0x18+30] = 0;
\r
366 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);
\r
371 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");
\r
373 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");
\r
376 gettimeofday(¬iceMsgTime, 0);
\r
377 printf("PicoMCD: %x\n", PicoMCD);
\r
378 // load SRAM for this ROM
\r
379 if(currentConfig.EmuOpt & 1)
\r
380 emu_SaveLoadGame(1, 1);
\r
386 void emu_Init(void)
\r
388 // make temp buffer for alt renderer
\r
389 framebuff = malloc((8+320)*(8+240+8));
\r
392 printf("framebuff == 0\n");
\r
397 // logf = fopen("log.txt", "w");
\r
401 static void romfname_ext(char *dst, char *ext)
\r
405 // make save filename
\r
406 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;
\r
407 strncpy(dst, p, 511);
\r
409 if(dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;
\r
414 static void find_combos(void)
\r
418 // find out which keys and actions are combos
\r
419 combo_keys = combo_acts = 0;
\r
420 for (act = 0; act < 32; act++)
\r
423 if (act == 16) continue; // player2 flag
\r
424 for (u = 0; u < 32; u++)
\r
426 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;
\r
430 // loop again and mark those keys and actions as combo
\r
431 for (u = 0; u < 32; u++)
\r
433 if (currentConfig.KeyBinds[u] & (1 << act)) {
\r
434 combo_keys |= 1 << u;
\r
435 combo_acts |= 1 << act;
\r
440 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);
\r
444 int emu_ReadConfig(int game)
\r
452 // set default config
\r
453 memset(¤tConfig, 0, sizeof(currentConfig));
\r
454 currentConfig.lastRomFile[0] = 0;
\r
455 currentConfig.EmuOpt = 0x1f | 0xc00; // | cd_leds | cd_cdda
\r
456 currentConfig.PicoOpt = 0x0f | 0x200; // | use_940
\r
457 currentConfig.PsndRate = 44100;
\r
458 currentConfig.PicoRegion = 0; // auto
\r
459 currentConfig.Frameskip = -1; // auto
\r
460 currentConfig.CPUclock = 200;
\r
461 currentConfig.volume = 50;
\r
462 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU
\r
463 currentConfig.KeyBinds[ 4] = 1<<1;
\r
464 currentConfig.KeyBinds[ 2] = 1<<2;
\r
465 currentConfig.KeyBinds[ 6] = 1<<3;
\r
466 currentConfig.KeyBinds[14] = 1<<4;
\r
467 currentConfig.KeyBinds[13] = 1<<5;
\r
468 currentConfig.KeyBinds[12] = 1<<6;
\r
469 currentConfig.KeyBinds[ 8] = 1<<7;
\r
470 currentConfig.KeyBinds[15] = 1<<26; // switch rend
\r
471 currentConfig.KeyBinds[10] = 1<<27; // save state
\r
472 currentConfig.KeyBinds[11] = 1<<28; // load state
\r
473 currentConfig.KeyBinds[23] = 1<<29; // vol up
\r
474 currentConfig.KeyBinds[22] = 1<<30; // vol down
\r
475 currentConfig.gamma = 100;
\r
476 strncpy(cfg, PicoConfigFile, 511);
\r
479 romfname_ext(cfg, ".pbcfg");
\r
482 printf("emu_ReadConfig: %s ", cfg);
\r
483 f = fopen(cfg, "rb");
\r
485 bread = fread(¤tConfig, 1, sizeof(currentConfig), f);
\r
488 printf((bread == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");
\r
490 PicoOpt = currentConfig.PicoOpt;
\r
491 PsndRate = currentConfig.PsndRate;
\r
492 PicoRegionOverride = currentConfig.PicoRegion;
\r
493 if (PicoOpt & 0x20) {
\r
494 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";
\r
495 actionNames[10] = "X"; actionNames[11] = "MODE";
\r
497 // some sanity checks
\r
498 if (currentConfig.CPUclock < 1 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
\r
499 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;
\r
500 // if volume keys are unbound, bind them to volume control
\r
501 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {
\r
502 currentConfig.KeyBinds[23] = 1<<29; // vol up
\r
503 currentConfig.KeyBinds[22] = 1<<30; // vol down
\r
506 return (bread == sizeof(currentConfig));
\r
510 int emu_WriteConfig(int game)
\r
518 strncpy(cfg, PicoConfigFile, 511);
\r
521 romfname_ext(cfg, ".pbcfg");
\r
524 printf("emu_WriteConfig: %s ", cfg);
\r
525 f = fopen(cfg, "wb");
\r
527 currentConfig.PicoOpt = PicoOpt;
\r
528 currentConfig.PsndRate = PsndRate;
\r
529 currentConfig.PicoRegion = PicoRegionOverride;
\r
530 bwrite = fwrite(¤tConfig, 1, sizeof(currentConfig), f);
\r
535 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");
\r
537 return (bwrite == sizeof(currentConfig));
\r
541 void emu_Deinit(void)
\r
544 if((currentConfig.EmuOpt & 1) && SRam.changed) {
\r
545 emu_SaveLoadGame(0, 1);
\r
549 if (!(currentConfig.EmuOpt & 0x20))
\r
550 emu_WriteConfig(0);
\r
557 if (gp2x_old_gamma != 100)
\r
562 void osd_text(int x, int y, char *text)
\r
564 int len = strlen(text)*8;
\r
566 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
568 x &= ~3; // align x
\r
569 len = (len+3) >> 2;
\r
570 for (h = 0; h < 8; h++) {
\r
571 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));
\r
572 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
\r
574 gp2x_text_out8_2(x, y, text, 0xf0);
\r
577 x &= ~1; // align x
\r
578 len = (len+1) >> 1;
\r
579 for (h = 0; h < 8; h++) {
\r
580 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));
\r
581 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;
\r
583 gp2x_text_out15(x, y, text);
\r
587 static void cd_leds(void)
\r
592 // if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change
\r
593 old_reg = Pico_mcd->s68k_regs[0];
\r
595 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
597 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
\r
598 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
\r
599 *(unsigned int *)((char *)gp2x_screen + 320*2+306) =
\r
600 *(unsigned int *)((char *)gp2x_screen + 320*3+306) =
\r
601 *(unsigned int *)((char *)gp2x_screen + 320*4+306) = col_g;
\r
602 *(unsigned int *)((char *)gp2x_screen + 320*2+312) =
\r
603 *(unsigned int *)((char *)gp2x_screen + 320*3+312) =
\r
604 *(unsigned int *)((char *)gp2x_screen + 320*4+312) = col_r;
\r
607 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+306);
\r
608 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
\r
609 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
\r
610 *p++ = col_g; *p++ = col_g; p++; *p++ = col_r; *p++ = col_r; p += 320/2 - 10/2;
\r
611 *p++ = col_g; *p++ = col_g; p++; *p++ = col_r; *p++ = col_r; p += 320/2 - 10/2;
\r
612 *p++ = col_g; *p++ = col_g; p++; *p++ = col_r; *p++ = col_r; p += 320/2 - 10/2;
\r
616 static int EmuScan16(unsigned int num, void *sdata)
\r
618 if (!(Pico.video.reg[1]&8)) num += 8;
\r
619 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);
\r
624 static int EmuScan8(unsigned int num, void *sdata)
\r
626 if (!(Pico.video.reg[1]&8)) num += 8;
\r
627 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);
\r
632 static int localPal[0x100];
\r
633 static void (*vidCpyM2)(void *dest, void *src) = NULL;
\r
635 static void blit(char *fps, char *notice)
\r
637 int emu_opt = currentConfig.EmuOpt;
\r
639 if (PicoOpt&0x10) {
\r
640 // 8bit fast renderer
\r
641 if (Pico.m.dirtyPal) {
\r
642 Pico.m.dirtyPal = 0;
\r
643 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
644 // feed new palette to our device
\r
645 gp2x_video_setpalette(localPal, 0x40);
\r
647 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);
\r
648 } else if (!(emu_opt&0x80)) {
\r
649 // 8bit accurate renderer
\r
650 if (Pico.m.dirtyPal) {
\r
651 Pico.m.dirtyPal = 0;
\r
652 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode
\r
653 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
654 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
\r
655 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
\r
656 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);
\r
657 localPal[0xc0] = 0x0000c000;
\r
658 localPal[0xd0] = 0x00c00000;
\r
659 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
\r
660 localPal[0xf0] = 0x00ffffff;
\r
661 gp2x_video_setpalette(localPal, 0x100);
\r
662 } else if (rendstatus & 0x20) { // mid-frame palette changes
\r
663 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
664 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
\r
665 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
\r
666 gp2x_video_setpalette(localPal, 0xc0);
\r
668 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
669 gp2x_video_setpalette(localPal, 0x40);
\r
674 if (notice) osd_text(4, 232, notice);
\r
676 osd_text(osd_fps_x, 232, fps);
\r
677 if ((emu_opt & 0x400) && (PicoMCD & 1))
\r
680 //gp2x_video_wait_vsync();
\r
683 if (!(PicoOpt&0x10)) {
\r
684 if (!(Pico.video.reg[1]&8)) {
\r
685 if (currentConfig.EmuOpt&0x80) {
\r
686 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;
\r
688 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;
\r
691 DrawLineDest = gp2x_screen;
\r
697 // clears whole screen or just the notice area (in all buffers)
\r
698 static void clearArea(int full)
\r
700 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
702 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
\r
703 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
\r
705 // 16bit accurate renderer
\r
706 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);
\r
707 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
\r
712 static void vidResetMode(void)
\r
714 if (PicoOpt&0x10) {
\r
715 gp2x_video_changemode(8);
\r
716 } else if (currentConfig.EmuOpt&0x80) {
\r
717 gp2x_video_changemode(15);
\r
718 PicoDrawSetColorFormat(1);
\r
719 PicoScan = EmuScan16;
\r
722 gp2x_video_changemode(8);
\r
723 PicoDrawSetColorFormat(2);
\r
724 PicoScan = EmuScan8;
\r
727 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
728 // setup pal for 8-bit modes
\r
729 localPal[0xc0] = 0x0000c000; // MCD LEDs
\r
730 localPal[0xd0] = 0x00c00000;
\r
731 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
\r
732 localPal[0xf0] = 0x00ffffff;
\r
733 gp2x_video_setpalette(localPal, 0x100);
\r
734 gp2x_memset_all_buffers(0, 0xe0, 320*240);
\r
737 Pico.m.dirtyPal = 1;
\r
739 gp2x_video_RGB_setscaling((PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
\r
743 static int check_save_file(void)
\r
745 char saveFname[512];
\r
750 if(state_slot > 0 && state_slot < 10) sprintf(ext, ".%i", state_slot);
\r
751 strcat(ext, ".mds");
\r
752 if(currentConfig.EmuOpt & 8) strcat(ext, ".gz");
\r
754 romfname_ext(saveFname, ext);
\r
755 if ((f = fopen(saveFname, "rb"))) {
\r
762 static void RunEvents(unsigned int which)
\r
764 if(which & 0x1800) { // save or load (but not both)
\r
766 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && check_save_file()) {
\r
767 unsigned long keys;
\r
768 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");
\r
769 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )
\r
771 if (keys & GP2X_X) do_it = 0;
\r
775 blit("", (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
\r
776 emu_SaveLoadGame(which & 0x1000, 0);
\r
781 if(which & 0x0400) { // switch renderer
\r
782 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
\r
783 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;
\r
784 else currentConfig.EmuOpt &= ~0x80;
\r
788 if (PicoOpt&0x10) {
\r
789 strcpy(noticeMsg, " 8bit fast renderer");
\r
790 } else if (currentConfig.EmuOpt&0x80) {
\r
791 strcpy(noticeMsg, "16bit accurate renderer");
\r
793 strcpy(noticeMsg, " 8bit accurate renderer");
\r
796 gettimeofday(¬iceMsgTime, 0);
\r
798 if(which & 0x0300) {
\r
801 if(state_slot < 0) state_slot = 9;
\r
804 if(state_slot > 9) state_slot = 0;
\r
806 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, check_save_file() ? "USED" : "FREE");
\r
807 gettimeofday(¬iceMsgTime, 0);
\r
809 if(which & 0x0080) {
\r
810 engineState = PGS_Menu;
\r
815 static void updateMovie(void)
\r
817 int offs = Pico.m.frame_count*3 + 0x40;
\r
818 if (offs+3 > movie_size) {
\r
821 strcpy(noticeMsg, "END OF MOVIE.");
\r
822 printf("END OF MOVIE.\n");
\r
823 gettimeofday(¬iceMsgTime, 0);
\r
826 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
\r
827 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A
\r
828 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B
\r
829 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A
\r
830 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
\r
831 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A
\r
832 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B
\r
833 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A
\r
834 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
\r
835 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
\r
836 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
\r
837 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
\r
838 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
\r
839 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
\r
844 static void updateKeys(void)
\r
846 unsigned long keys, allActions[2] = { 0, 0 }, events;
\r
847 static unsigned long prevEvents = 0;
\r
850 keys = gp2x_joystick_read(0);
\r
851 if (keys & GP2X_SELECT) {
\r
852 engineState = select_exits ? PGS_Quit : PGS_Menu;
\r
853 // wait until select is released, so menu would not resume game
\r
854 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);
\r
857 keys &= CONFIGURABLE_KEYS;
\r
859 for (i = 0; i < 32; i++)
\r
861 if (keys & (1 << i)) {
\r
862 int pl, acts = currentConfig.KeyBinds[i];
\r
863 if (!acts) continue;
\r
864 pl = (acts >> 16) & 1;
\r
865 if (combo_keys & (1 << i)) {
\r
866 int u = i+1, acts_c = acts & combo_acts;
\r
867 // let's try to find the other one
\r
869 for (; u < 32; u++)
\r
870 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {
\r
871 allActions[pl] |= acts_c;
\r
872 keys &= ~((1 << i) | (1 << u));
\r
875 // add non-combo actions if combo ones were not found
\r
876 if (!acts_c || u == 32)
\r
877 allActions[pl] |= acts & ~combo_acts;
\r
879 allActions[pl] |= acts;
\r
885 if (num_of_joys > 0)
\r
887 gp2x_usbjoy_update();
\r
888 for (joy = 0; joy < num_of_joys; joy++) {
\r
889 int keys = gp2x_usbjoy_check2(joy);
\r
890 for (i = 0; i < 32; i++) {
\r
891 if (keys & (1 << i)) {
\r
892 int acts = currentConfig.JoyBinds[joy][i];
\r
893 int pl = (acts >> 16) & 1;
\r
894 allActions[pl] |= acts;
\r
900 PicoPad[0] = (unsigned short) allActions[0];
\r
901 PicoPad[1] = (unsigned short) allActions[1];
\r
903 events = (allActions[0] | allActions[1]) >> 16;
\r
905 // volume is treated in special way and triggered every frame
\r
906 if(events & 0x6000) {
\r
907 int vol = currentConfig.volume;
\r
908 if (events & 0x2000) {
\r
909 if (vol < 90) vol++;
\r
911 if (vol > 0) vol--;
\r
913 gp2x_sound_volume(vol, vol);
\r
914 sprintf(noticeMsg, "VOL: %02i", vol);
\r
915 gettimeofday(¬iceMsgTime, 0);
\r
916 currentConfig.volume = vol;
\r
919 events &= ~prevEvents;
\r
920 if (events) RunEvents(events);
\r
921 if (movie_data) updateMovie();
\r
923 prevEvents = (allActions[0] | allActions[1]) >> 16;
\r
926 static int snd_excess_add = 0, snd_excess_cnt = 0; // hack
\r
928 static void updateSound(void)
\r
930 int len = (PicoOpt&8)?PsndLen*2:PsndLen;
\r
932 snd_excess_cnt += snd_excess_add;
\r
933 if (snd_excess_cnt >= 0x10000) {
\r
934 snd_excess_cnt -= 0x10000;
\r
936 PsndOut[len] = PsndOut[len-2];
\r
937 PsndOut[len+1] = PsndOut[len-1];
\r
940 PsndOut[len] = PsndOut[len-1];
\r
945 gp2x_sound_write(PsndOut, len<<1);
\r
949 static void SkipFrame(int do_sound)
\r
951 void *sndbuff_tmp = 0;
\r
952 if (PsndOut && !do_sound) {
\r
953 sndbuff_tmp = PsndOut;
\r
961 if (sndbuff_tmp && !do_sound) {
\r
962 PsndOut = sndbuff_tmp;
\r
967 static void simpleWait(int thissec, int lim_time)
\r
969 struct timeval tval;
\r
971 spend_cycles(1024);
\r
972 gettimeofday(&tval, 0);
\r
973 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
975 while(tval.tv_usec < lim_time)
\r
977 spend_cycles(1024);
\r
978 gettimeofday(&tval, 0);
\r
979 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
984 void emu_Loop(void)
\r
986 static int gp2x_old_clock = 200;
\r
987 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;
\r
988 char fpsbuff[24]; // fps count c string
\r
989 struct timeval tval; // timing
\r
990 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;
\r
991 int target_fps, target_frametime, lim_time, i;
\r
994 printf("entered emu_Loop()\n");
\r
996 if (gp2x_old_clock != currentConfig.CPUclock) {
\r
997 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
\r
998 set_FCLK(currentConfig.CPUclock);
\r
999 gp2x_old_clock = currentConfig.CPUclock;
\r
1000 printf(" done\n");
\r
1003 if (gp2x_old_gamma != currentConfig.gamma) {
\r
1004 set_gamma(currentConfig.gamma);
\r
1005 gp2x_old_gamma = currentConfig.gamma;
\r
1006 printf("updated gamma to %i\n", currentConfig.gamma);
\r
1011 // make sure we are in correct mode
\r
1013 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
1016 // pal/ntsc might have changed, reset related stuff
\r
1017 target_fps = Pico.m.pal ? 50 : 60;
\r
1018 target_frametime = 1000000/target_fps;
\r
1021 // prepare sound stuff
\r
1022 if(currentConfig.EmuOpt & 4) {
\r
1023 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {
\r
1024 /* if 940 is turned off, we need it to be put back to sleep */
\r
1025 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {
\r
1031 //excess_samples = PsndRate - PsndLen*target_fps;
\r
1032 snd_excess_cnt = 0;
\r
1033 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
\r
1034 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
1035 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);
\r
1036 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);
\r
1037 PicoWriteSound = updateSound;
\r
1038 PsndOut = calloc((PicoOpt&8) ? (PsndLen*4+4) : (PsndLen*2+2), 1);
\r
1039 PsndRate_old = PsndRate;
\r
1040 PsndLen_real = PsndLen;
\r
1041 PicoOpt_old = PicoOpt;
\r
1042 pal_old = Pico.m.pal;
\r
1048 while (engineState == PGS_Running)
\r
1052 gettimeofday(&tval, 0);
\r
1053 if(reset_timing) {
\r
1055 thissec = tval.tv_sec;
\r
1056 frames_shown = frames_done = tval.tv_usec/target_frametime;
\r
1059 // show notice message?
\r
1060 if(noticeMsgTime.tv_sec) {
\r
1061 static int noticeMsgSum;
\r
1062 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec
\r
1063 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;
\r
1067 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
\r
1068 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
\r
1069 notice = noticeMsg;
\r
1073 // check for mode changes
\r
1074 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
\r
1075 if (modes != oldmodes) {
\r
1077 osd_fps_x = OSD_FPS_X;
\r
1079 vidCpyM2 = vidCpyM2_40col;
\r
1081 if (PicoOpt & 0x100) {
\r
1082 vidCpyM2 = vidCpyM2_32col_nobord;
\r
1084 osd_fps_x = OSD_FPS_X - 64;
\r
1086 vidCpyM2 = vidCpyM2_32col;
\r
1089 gp2x_video_RGB_setscaling(scalex, 240);
\r
1094 // second changed?
\r
1095 if(thissec != tval.tv_sec) {
\r
1097 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
1098 if(++bench == 10) {
\r
1100 bench_fps_s = bench_fps;
\r
1101 bf[bfp++ & 3] = bench_fps;
\r
1104 bench_fps += frames_shown;
\r
1105 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
1107 if(currentConfig.EmuOpt & 2)
\r
1108 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
1110 thissec = tval.tv_sec;
\r
1112 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {
\r
1113 frames_done = frames_shown = 0;
\r
1115 // it is quite common for this implementation to leave 1 fame unfinished
\r
1116 // when second changes, but we don't want buffer to starve.
\r
1117 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {
\r
1119 SkipFrame(1); frames_done++;
\r
1122 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
\r
1123 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
\r
1124 if (frames_shown > frames_done) frames_shown = frames_done;
\r
1128 lim_time = (frames_done+1) * target_frametime;
\r
1129 if(currentConfig.Frameskip >= 0) { // frameskip enabled
\r
1130 for(i = 0; i < currentConfig.Frameskip; i++) {
\r
1132 SkipFrame(1); frames_done++;
\r
1133 if (PsndOut) { // do framelimitting if sound is enabled
\r
1134 gettimeofday(&tval, 0);
\r
1135 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1136 if(tval.tv_usec < lim_time) { // we are too fast
\r
1137 simpleWait(thissec, lim_time);
\r
1140 lim_time += target_frametime;
\r
1142 } else if(tval.tv_usec > lim_time) { // auto frameskip
\r
1143 // no time left for this frame - skip
\r
1145 SkipFrame(tval.tv_usec < lim_time+target_frametime); frames_done++;
\r
1153 if (Pico.m.frame_count == 31563) {
\r
1155 f = fopen("ram_p.bin", "wb");
\r
1156 if (!f) { printf("!f\n"); exit(1); }
\r
1157 fwrite(Pico.ram, 1, 0x10000, f);
\r
1165 #define BYTE unsigned char
\r
1166 #define WORD unsigned short
\r
1169 BYTE IDLength; /* 00h Size of Image ID field */
\r
1170 BYTE ColorMapType; /* 01h Color map type */
\r
1171 BYTE ImageType; /* 02h Image type code */
\r
1172 WORD CMapStart; /* 03h Color map origin */
\r
1173 WORD CMapLength; /* 05h Color map length */
\r
1174 BYTE CMapDepth; /* 07h Depth of color map entries */
\r
1175 WORD XOffset; /* 08h X origin of image */
\r
1176 WORD YOffset; /* 0Ah Y origin of image */
\r
1177 WORD Width; /* 0Ch Width of image */
\r
1178 WORD Height; /* 0Eh Height of image */
\r
1179 BYTE PixelDepth; /* 10h Image pixel size */
\r
1180 BYTE ImageDescriptor; /* 11h Image descriptor byte */
\r
1181 } __attribute__((packed)) TGAHEAD;
\r
1182 static unsigned short oldscr[320*240];
\r
1183 FILE *f; char name[128]; int i;
\r
1185 memset(&TGAHEAD, 0, sizeof(TGAHEAD));
\r
1186 TGAHEAD.ImageType = 2;
\r
1187 TGAHEAD.Width = 320;
\r
1188 TGAHEAD.Height = 240;
\r
1189 TGAHEAD.PixelDepth = 16;
\r
1190 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
\r
1192 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
\r
1194 for (i = 0; i < 320*240; i++)
\r
1195 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;
\r
1198 for (i = 0; i < 320*240; i++)
\r
1199 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);
\r
1200 sprintf(name, "%05i.tga", Pico.m.frame_count);
\r
1201 f = fopen(name, "wb");
\r
1202 if (!f) { printf("!f\n"); exit(1); }
\r
1203 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
\r
1204 fwrite(oldscr, 1, 320*240*2, f);
\r
1211 gettimeofday(&tval, 0);
\r
1212 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1214 // sleep if we are still too fast
\r
1215 if(PsndOut != 0 || currentConfig.Frameskip < 0)
\r
1217 // usleep sleeps for ~20ms minimum, so it is not a solution here
\r
1218 gettimeofday(&tval, 0);
\r
1219 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1220 if(tval.tv_usec < lim_time)
\r
1222 // we are too fast
\r
1223 simpleWait(thissec, lim_time);
\r
1227 blit(fpsbuff, notice);
\r
1229 frames_done++; frames_shown++;
\r
1233 if((currentConfig.EmuOpt & 1) && SRam.changed) {
\r
1234 emu_SaveLoadGame(0, 1);
\r
1238 if (PsndOut != 0) {
\r
1245 void emu_ResetGame(void)
\r
1252 size_t gzRead2(void *p, size_t _size, size_t _n, void *file)
\r
1254 return gzread(file, p, _n);
\r
1258 size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)
\r
1260 return gzwrite(file, p, _n);
\r
1263 typedef unsigned int (*STATE_SL_FUNC)(void *, unsigned int, unsigned int, void *);
\r
1265 int emu_SaveLoadGame(int load, int sram)
\r
1268 char saveFname[512];
\r
1270 // make save filename
\r
1271 romfname_ext(saveFname, "");
\r
1272 if(sram) strcat(saveFname, (PicoMCD&1) ? ".brm" : ".srm");
\r
1274 if(state_slot > 0 && state_slot < 10) sprintf(saveFname, "%s.%i", saveFname, state_slot);
\r
1275 strcat(saveFname, ".mds");
\r
1278 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
\r
1283 unsigned char *sram_data;
\r
1285 sram_size = 0x2000;
\r
1286 sram_data = Pico_mcd->bram;
\r
1288 sram_size = SRam.end-SRam.start+1;
\r
1289 if(SRam.reg_back & 4) sram_size=0x2000;
\r
1290 sram_data = SRam.data;
\r
1292 if(!sram_data) return 0; // SRam forcefully disabled for this game
\r
1295 sramFile = fopen(saveFname, "rb");
\r
1296 if(!sramFile) return -1;
\r
1297 fread(sram_data, 1, sram_size, sramFile);
\r
1300 // sram save needs some special processing
\r
1301 // see if we have anything to save
\r
1302 for(; sram_size > 0; sram_size--)
\r
1303 if(sram_data[sram_size-1]) break;
\r
1306 sramFile = fopen(saveFname, "wb");
\r
1307 ret = fwrite(sram_data, 1, sram_size, sramFile);
\r
1308 ret = (ret != sram_size) ? -1 : 0;
\r
1317 void *PmovFile = NULL;
\r
1319 if(currentConfig.EmuOpt & 8) {
\r
1320 strcat(saveFname, ".gz");
\r
1321 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {
\r
1322 areaRead = gzRead2;
\r
1323 areaWrite = gzWrite2;
\r
1324 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);
\r
1326 saveFname[strlen(saveFname)-3] = 0;
\r
1328 if(!PmovFile) { // gzip failed or was disabled
\r
1329 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {
\r
1330 areaRead = (STATE_SL_FUNC) fread;
\r
1331 areaWrite = (STATE_SL_FUNC) fwrite;
\r
1335 PmovState(load ? 6 : 5, PmovFile);
\r
1336 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");
\r
1337 if(areaRead == gzRead2)
\r
1338 gzclose(PmovFile);
\r
1339 else fclose ((FILE *) PmovFile);
\r
1341 if (!load) sync();
\r
1342 else Pico.m.dirtyPal=1;
\r
1344 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");
\r
1348 gettimeofday(¬iceMsgTime, 0);
\r