+// (c) Copyright 2006-2007 notaz, All rights reserved.\r
+// Free for non-commercial use.\r
+\r
+// For commercial use, separate licencing terms must be obtained.\r
+\r
+#include <stdio.h>\r
+#include <stdlib.h>\r
+#include <ctype.h> // tolower\r
+#ifndef NO_SYNC\r
+#include <unistd.h>\r
+#endif\r
+\r
+#include "emu.h"\r
+#include "menu.h"\r
+#include "fonts.h"\r
+#include "lprintf.h"\r
+\r
+#include <Pico/PicoInt.h>\r
+#include <Pico/Patch.h>\r
+#include <zlib/zlib.h>\r
+\r
+#if defined(__GP2X__)\r
+ #include "../gp2x/gp2x.h"\r
+ #define SCREEN_WIDTH 320\r
+ #define SCREEN_BUFFER gp2x_screen\r
+#elif defined(__GIZ__)\r
+ #include "../gizmondo/giz.h"\r
+ #define SCREEN_WIDTH 321\r
+ #define SCREEN_BUFFER giz_screen // ?\r
+#endif\r
+\r
+char *PicoConfigFile = "picoconfig.bin";\r
+currentConfig_t currentConfig;\r
+unsigned char *rom_data = NULL;\r
+char noticeMsg[64];\r
+int state_slot = 0;\r
+int config_slot = 0, config_slot_current = 0;\r
+\r
+unsigned char *movie_data = NULL;\r
+static int movie_size = 0;\r
+\r
+// provided by platform code:\r
+extern char romFileName[];\r
+extern void emu_noticeMsgUpdated(void);\r
+extern void emu_getMainDir(char *dst, int len);\r
+extern void emu_setDefaultConfig(void);\r
+extern void menu_romload_prepare(const char *rom_name);\r
+extern void menu_romload_end(void);\r
+\r
+\r
+// utilities\r
+static void strlwr_(char* string)\r
+{\r
+ while ( (*string++ = (char)tolower(*string)) );\r
+}\r
+\r
+static int try_rfn_cut(void)\r
+{\r
+ FILE *tmp;\r
+ char *p;\r
+\r
+ p = romFileName + strlen(romFileName) - 1;\r
+ for (; p > romFileName; p--)\r
+ if (*p == '.') break;\r
+ *p = 0;\r
+\r
+ if((tmp = fopen(romFileName, "rb"))) {\r
+ fclose(tmp);\r
+ return 1;\r
+ }\r
+ return 0;\r
+}\r
+\r
+static void get_ext(char *file, char *ext)\r
+{\r
+ char *p;\r
+\r
+ p = file + strlen(file) - 4;\r
+ if (p < file) p = file;\r
+ strncpy(ext, p, 4);\r
+ ext[4] = 0;\r
+ strlwr_(ext);\r
+}\r
+\r
+char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
+char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };\r
+char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
+\r
+int emu_findBios(int region, char **bios_file)\r
+{\r
+ static char bios_path[1024];\r
+ int i, count;\r
+ char **files;\r
+ FILE *f = NULL;\r
+\r
+ if (region == 4) { // US\r
+ files = biosfiles_us;\r
+ count = sizeof(biosfiles_us) / sizeof(char *);\r
+ } else if (region == 8) { // EU\r
+ files = biosfiles_eu;\r
+ count = sizeof(biosfiles_eu) / sizeof(char *);\r
+ } else if (region == 1 || region == 2) {\r
+ files = biosfiles_jp;\r
+ count = sizeof(biosfiles_jp) / sizeof(char *);\r
+ } else {\r
+ return 0;\r
+ }\r
+\r
+ for (i = 0; i < count; i++)\r
+ {\r
+ emu_getMainDir(bios_path, sizeof(bios_path));\r
+ strcat(bios_path, files[i]);\r
+ strcat(bios_path, ".bin");\r
+ f = fopen(bios_path, "rb");\r
+ if (f) break;\r
+\r
+ bios_path[strlen(bios_path) - 4] = 0;\r
+ strcat(bios_path, ".zip");\r
+ f = fopen(bios_path, "rb");\r
+ if (f) break;\r
+ }\r
+\r
+ if (f) {\r
+ lprintf("using bios: %s\n", bios_path);\r
+ fclose(f);\r
+ if (bios_file) *bios_file = bios_path;\r
+ return 1;\r
+ } else {\r
+ sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
+ region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
+ lprintf("%s\n", menuErrorMsg);\r
+ return 0;\r
+ }\r
+}\r
+\r
+/* checks if romFileName points to valid MegaCD image\r
+ * if so, checks for suitable BIOS */\r
+int emu_cdCheck(int *pregion)\r
+{\r
+ unsigned char buf[32];\r
+ pm_file *cd_f;\r
+ int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
+\r
+ cd_f = pm_open(romFileName);\r
+ if (!cd_f) return 0; // let the upper level handle this\r
+\r
+ if (pm_read(buf, 32, cd_f) != 32) {\r
+ pm_close(cd_f);\r
+ return 0;\r
+ }\r
+\r
+ if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
+ if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
+ if (type == 0) {\r
+ pm_close(cd_f);\r
+ return 0;\r
+ }\r
+\r
+ /* it seems we have a CD image here. Try to detect region now.. */\r
+ pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
+ pm_read(buf, 1, cd_f);\r
+ pm_close(cd_f);\r
+\r
+ if (buf[0] == 0x64) region = 8; // EU\r
+ if (buf[0] == 0xa1) region = 1; // JAP\r
+\r
+ lprintf("detected %s Sega/Mega CD image with %s region\n",\r
+ type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
+\r
+ if (pregion != NULL) *pregion = region;\r
+\r
+ return type;\r
+}\r
+\r
+int emu_ReloadRom(void)\r
+{\r
+ unsigned int rom_size = 0;\r
+ char *used_rom_name = romFileName;\r
+ char ext[5];\r
+ pm_file *rom;\r
+ int ret, cd_state, cd_region, cfg_loaded = 0;\r
+\r
+ lprintf("emu_ReloadRom(%s)\n", romFileName);\r
+\r
+ get_ext(romFileName, ext);\r
+\r
+ // detect wrong extensions\r
+ if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
+ sprintf(menuErrorMsg, "Not a ROM selected.");\r
+ return 0;\r
+ }\r
+\r
+ PicoPatchUnload();\r
+\r
+ // check for movie file\r
+ if(movie_data) {\r
+ free(movie_data);\r
+ movie_data = 0;\r
+ }\r
+ if(!strcmp(ext, ".gmv")) {\r
+ // check for both gmv and rom\r
+ int dummy;\r
+ FILE *movie_file = fopen(romFileName, "rb");\r
+ if(!movie_file) {\r
+ sprintf(menuErrorMsg, "Failed to open movie.");\r
+ return 0;\r
+ }\r
+ fseek(movie_file, 0, SEEK_END);\r
+ movie_size = ftell(movie_file);\r
+ fseek(movie_file, 0, SEEK_SET);\r
+ if(movie_size < 64+3) {\r
+ sprintf(menuErrorMsg, "Invalid GMV file.");\r
+ fclose(movie_file);\r
+ return 0;\r
+ }\r
+ movie_data = malloc(movie_size);\r
+ if(movie_data == NULL) {\r
+ sprintf(menuErrorMsg, "low memory.");\r
+ fclose(movie_file);\r
+ return 0;\r
+ }\r
+ fread(movie_data, 1, movie_size, movie_file);\r
+ fclose(movie_file);\r
+ if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
+ sprintf(menuErrorMsg, "Invalid GMV file.");\r
+ return 0;\r
+ }\r
+ dummy = try_rfn_cut() || try_rfn_cut();\r
+ if (!dummy) {\r
+ sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
+ return 0;\r
+ }\r
+ get_ext(romFileName, ext);\r
+ }\r
+ else if (!strcmp(ext, ".pat")) {\r
+ int dummy;\r
+ PicoPatchLoad(romFileName);\r
+ dummy = try_rfn_cut() || try_rfn_cut();\r
+ if (!dummy) {\r
+ sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
+ return 0;\r
+ }\r
+ get_ext(romFileName, ext);\r
+ }\r
+\r
+ if ((PicoMCD & 1) && Pico_mcd != NULL)\r
+ Stop_CD();\r
+\r
+ // check for MegaCD image\r
+ cd_state = emu_cdCheck(&cd_region);\r
+ if (cd_state > 0)\r
+ {\r
+ // valid CD image, check for BIOS..\r
+\r
+ // we need to have config loaded at this point\r
+ ret = emu_ReadConfig(1, 1);\r
+ if (!ret) emu_ReadConfig(0, 1);\r
+ cfg_loaded = 1;\r
+\r
+ if (PicoRegionOverride) {\r
+ cd_region = PicoRegionOverride;\r
+ lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");\r
+ }\r
+ if (!emu_findBios(cd_region, &used_rom_name)) {\r
+ // bios_help() ?\r
+ return 0;\r
+ }\r
+\r
+ PicoMCD |= 1;\r
+ get_ext(used_rom_name, ext);\r
+ }\r
+ else\r
+ {\r
+ if (PicoMCD & 1) Stop_CD();\r
+ PicoMCD &= ~1;\r
+ }\r
+\r
+ rom = pm_open(used_rom_name);\r
+ if(!rom) {\r
+ sprintf(menuErrorMsg, "Failed to open rom.");\r
+ return 0;\r
+ }\r
+\r
+ menu_romload_prepare(used_rom_name);\r
+\r
+ if(rom_data) {\r
+ free(rom_data);\r
+ rom_data = 0;\r
+ rom_size = 0;\r
+ }\r
+\r
+ if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
+ sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
+ lprintf("%s\n", menuErrorMsg);\r
+ pm_close(rom);\r
+ menu_romload_end();\r
+ return 0;\r
+ }\r
+ pm_close(rom);\r
+ menu_romload_end();\r
+\r
+ // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
+ if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
+ ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
+ if (rom_data) free(rom_data);\r
+ rom_data = 0;\r
+ sprintf(menuErrorMsg, "Not a ROM selected.");\r
+ return 0;\r
+ }\r
+\r
+ // load config for this ROM (do this before insert to get correct region)\r
+ if (!cfg_loaded) {\r
+ ret = emu_ReadConfig(1, 1);\r
+ if (!ret) emu_ReadConfig(0, 1);\r
+ }\r
+\r
+ lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
+ if(PicoCartInsert(rom_data, rom_size)) {\r
+ sprintf(menuErrorMsg, "Failed to load ROM.");\r
+ return 0;\r
+ }\r
+\r
+ Pico.m.frame_count = 0;\r
+\r
+ // insert CD if it was detected\r
+ if (cd_state > 0) {\r
+ ret = Insert_CD(romFileName, cd_state == 2);\r
+ if (ret != 0) {\r
+ sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
+ lprintf("%s\n", menuErrorMsg);\r
+ return 0;\r
+ }\r
+ }\r
+\r
+ // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
+ strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
+ currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
+\r
+ if (PicoPatches) {\r
+ PicoPatchPrepare();\r
+ PicoPatchApply();\r
+ }\r
+\r
+ // additional movie stuff\r
+ if (movie_data) {\r
+ if(movie_data[0x14] == '6')\r
+ PicoOpt |= 0x20; // 6 button pad\r
+ else PicoOpt &= ~0x20;\r
+ PicoOpt |= 0x10040; // accurate timing, no VDP fifo timing\r
+ if(movie_data[0xF] >= 'A') {\r
+ if(movie_data[0x16] & 0x80) {\r
+ PicoRegionOverride = 8;\r
+ } else {\r
+ PicoRegionOverride = 4;\r
+ }\r
+ PicoReset(0);\r
+ // TODO: bits 6 & 5\r
+ }\r
+ movie_data[0x18+30] = 0;\r
+ sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
+ }\r
+ else\r
+ {\r
+ PicoOpt &= ~0x10000;\r
+ if(Pico.m.pal) {\r
+ strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
+ } else {\r
+ strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
+ }\r
+ }\r
+ emu_noticeMsgUpdated();\r
+\r
+ // load SRAM for this ROM\r
+ if(currentConfig.EmuOpt & 1)\r
+ emu_SaveLoadGame(1, 1);\r
+\r
+ return 1;\r
+}\r
+\r
+\r
+static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
+{\r
+ char *p;\r
+ int prefix_len = 0;\r
+\r
+ // make save filename\r
+ for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
+ *dst = 0;\r
+ if (prefix) {\r
+ strcpy(dst, prefix);\r
+ prefix_len = strlen(prefix);\r
+ }\r
+ strncpy(dst + prefix_len, p, 511-prefix_len);\r
+ dst[511-8] = 0;\r
+ if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
+ if (ext) strcat(dst, ext);\r
+}\r
+\r
+\r
+int emu_ReadConfig(int game, int no_defaults)\r
+{\r
+ FILE *f;\r
+ char cfg[512], extbuf[16];\r
+ int bread = 0;\r
+\r
+ if (!game)\r
+ {\r
+ if (!no_defaults)\r
+ {\r
+ emu_setDefaultConfig();\r
+ }\r
+ strncpy(cfg, PicoConfigFile, 511);\r
+ if (config_slot != 0)\r
+ {\r
+ char *p = strrchr(cfg, '.');\r
+ if (p == NULL) p = cfg + strlen(cfg);\r
+ sprintf(extbuf, ".%i.pbcfg", config_slot);\r
+ strncpy(p, extbuf, 511 - (p - cfg));\r
+ }\r
+ cfg[511] = 0;\r
+ } else {\r
+ if (config_slot != 0)\r
+ sprintf(extbuf, ".%i.pbcfg", config_slot);\r
+ else strcpy(extbuf, ".pbcfg");\r
+ romfname_ext(cfg, "cfg/", extbuf);\r
+ f = fopen(cfg, "rb");\r
+ if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
+ else fclose(f);\r
+ }\r
+\r
+ lprintf("emu_ReadConfig: %s ", cfg);\r
+ f = fopen(cfg, "rb");\r
+ if (f) {\r
+ bread = fread(¤tConfig, 1, sizeof(currentConfig), f);\r
+ fclose(f);\r
+ }\r
+ lprintf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
+\r
+ PicoOpt = currentConfig.PicoOpt;\r
+ PsndRate = currentConfig.PsndRate;\r
+ PicoRegionOverride = currentConfig.PicoRegion;\r
+ PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
+ PicoCDBuffers = currentConfig.PicoCDBuffers;\r
+ //scaling_update();\r
+ // some sanity checks\r
+ if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
+ if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
+ if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
+ // if volume keys are unbound, bind them to volume control\r
+ if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
+ currentConfig.KeyBinds[23] = 1<<29; // vol up\r
+ currentConfig.KeyBinds[22] = 1<<30; // vol down\r
+ }\r
+\r
+ if (bread > 0) config_slot_current = config_slot;\r
+ return (bread > 0); // == sizeof(currentConfig));\r
+}\r
+\r
+\r
+int emu_WriteConfig(int game)\r
+{\r
+ FILE *f;\r
+ char cfg[512], extbuf[16];\r
+ int bwrite = 0;\r
+\r
+ if (!game)\r
+ {\r
+ strncpy(cfg, PicoConfigFile, 511);\r
+ if (config_slot != 0)\r
+ {\r
+ char *p = strrchr(cfg, '.');\r
+ if (p == NULL) p = cfg + strlen(cfg);\r
+ sprintf(extbuf, ".%i.pbcfg", config_slot);\r
+ strncpy(p, extbuf, 511 - (p - cfg));\r
+ }\r
+ cfg[511] = 0;\r
+ } else {\r
+ if (config_slot != 0)\r
+ sprintf(extbuf, ".%i.pbcfg", config_slot);\r
+ else strcpy(extbuf, ".pbcfg");\r
+ romfname_ext(cfg, "cfg/", extbuf);\r
+ }\r
+\r
+ lprintf("emu_WriteConfig: %s ", cfg);\r
+ f = fopen(cfg, "wb");\r
+ if (f) {\r
+ currentConfig.PicoOpt = PicoOpt;\r
+ currentConfig.PsndRate = PsndRate;\r
+ currentConfig.PicoRegion = PicoRegionOverride;\r
+ currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
+ currentConfig.PicoCDBuffers = PicoCDBuffers;\r
+ bwrite = fwrite(¤tConfig, 1, sizeof(currentConfig), f);\r
+ fflush(f);\r
+ fclose(f);\r
+#ifndef NO_SYNC\r
+ sync();\r
+#endif\r
+ }\r
+ lprintf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
+\r
+ if (bwrite == sizeof(currentConfig)) config_slot_current = config_slot;\r
+ return (bwrite == sizeof(currentConfig));\r
+}\r
+\r
+\r
+void emu_textOut8(int x, int y, const char *text)\r
+{\r
+ int i,l,len=strlen(text);\r
+ unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
+\r
+ /* always using built-in font */\r
+ for (i = 0; i < len; i++)\r
+ {\r
+ for (l=0;l<8;l++)\r
+ {\r
+ unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
+ if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;\r
+ if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;\r
+ if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;\r
+ if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;\r
+ if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;\r
+ if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;\r
+ if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;\r
+ if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;\r
+ }\r
+ screen += 8;\r
+ }\r
+}\r
+\r
+void emu_textOut16(int x, int y, const char *text)\r
+{\r
+ int i,l,len=strlen(text);\r
+ unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
+\r
+ for (i = 0; i < len; i++)\r
+ {\r
+ for (l=0;l<8;l++)\r
+ {\r
+ unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
+ if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;\r
+ if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;\r
+ if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;\r
+ if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;\r
+ if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;\r
+ if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;\r
+ if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;\r
+ if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;\r
+ }\r
+ screen += 8;\r
+ }\r
+}\r
+\r
+\r
+void emu_updateMovie(void)\r
+{\r
+ int offs = Pico.m.frame_count*3 + 0x40;\r
+ if (offs+3 > movie_size) {\r
+ free(movie_data);\r
+ movie_data = 0;\r
+ strcpy(noticeMsg, "END OF MOVIE.");\r
+ lprintf("END OF MOVIE.\n");\r
+ emu_noticeMsgUpdated();\r
+ } else {\r
+ // MXYZ SACB RLDU\r
+ PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
+ if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
+ if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
+ if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
+ PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
+ if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
+ if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
+ if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
+ PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
+ if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
+ if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
+ PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
+ if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
+ if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
+ }\r
+}\r
+\r
+\r
+static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
+{\r
+ return gzread(file, p, _n);\r
+}\r
+\r
+\r
+static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
+{\r
+ return gzwrite(file, p, _n);\r
+}\r
+\r
+static int try_ropen_file(const char *fname)\r
+{\r
+ FILE *f;\r
+\r
+ f = fopen(fname, "rb");\r
+ if (f) {\r
+ fclose(f);\r
+ return 1;\r
+ }\r
+ return 0;\r
+}\r
+\r
+char *emu_GetSaveFName(int load, int is_sram, int slot)\r
+{\r
+ static char saveFname[512];\r
+ char ext[16];\r
+\r
+ if (is_sram)\r
+ {\r
+ romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
+ if (load) {\r
+ if (try_ropen_file(saveFname)) return saveFname;\r
+ // try in current dir..\r
+ romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
+ if (try_ropen_file(saveFname)) return saveFname;\r
+ return NULL; // give up\r
+ }\r
+ }\r
+ else\r
+ {\r
+ ext[0] = 0;\r
+ if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
+ strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
+\r
+ romfname_ext(saveFname, "mds/", ext);\r
+ if (load) {\r
+ if (try_ropen_file(saveFname)) return saveFname;\r
+ romfname_ext(saveFname, NULL, ext);\r
+ if (try_ropen_file(saveFname)) return saveFname;\r
+ if (currentConfig.EmuOpt & 8) {\r
+ ext[0] = 0;\r
+ if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
+ strcat(ext, ".mds");\r
+\r
+ romfname_ext(saveFname, "mds/", ext);\r
+ if (try_ropen_file(saveFname)) return saveFname;\r
+ romfname_ext(saveFname, NULL, ext);\r
+ if (try_ropen_file(saveFname)) return saveFname;\r
+ }\r
+ return NULL;\r
+ }\r
+ }\r
+\r
+ return saveFname;\r
+}\r
+\r
+int emu_checkSaveFile(int slot)\r
+{\r
+ return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
+}\r
+\r
+void emu_setSaveStateCbs(int gz)\r
+{\r
+ if (gz) {\r
+ areaRead = gzRead2;\r
+ areaWrite = gzWrite2;\r
+ areaEof = (areaeof *) gzeof;\r
+ areaSeek = (areaseek *) gzseek;\r
+ areaClose = (areaclose *) gzclose;\r
+ } else {\r
+ areaRead = (arearw *) fread;\r
+ areaWrite = (arearw *) fwrite;\r
+ areaEof = (areaeof *) feof;\r
+ areaSeek = (areaseek *) fseek;\r
+ areaClose = (areaclose *) fclose;\r
+ }\r
+}\r
+\r
+int emu_SaveLoadGame(int load, int sram)\r
+{\r
+ int ret = 0;\r
+ char *saveFname;\r
+\r
+ // make save filename\r
+ saveFname = emu_GetSaveFName(load, sram, state_slot);\r
+ if (saveFname == NULL) {\r
+ if (!sram) {\r
+ strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
+ emu_noticeMsgUpdated();\r
+ }\r
+ return -1;\r
+ }\r
+\r
+ lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
+\r
+ if(sram) {\r
+ FILE *sramFile;\r
+ int sram_size;\r
+ unsigned char *sram_data;\r
+ int truncate = 1;\r
+ if (PicoMCD&1) {\r
+ if (PicoOpt&0x8000) { // MCD RAM cart?\r
+ sram_size = 0x12000;\r
+ sram_data = SRam.data;\r
+ if (sram_data)\r
+ memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
+ } else {\r
+ sram_size = 0x2000;\r
+ sram_data = Pico_mcd->bram;\r
+ truncate = 0; // the .brm may contain RAM cart data after normal brm\r
+ }\r
+ } else {\r
+ sram_size = SRam.end-SRam.start+1;\r
+ if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
+ sram_data = SRam.data;\r
+ }\r
+ if (!sram_data) return 0; // SRam forcefully disabled for this game\r
+\r
+ if (load) {\r
+ sramFile = fopen(saveFname, "rb");\r
+ if(!sramFile) return -1;\r
+ fread(sram_data, 1, sram_size, sramFile);\r
+ fclose(sramFile);\r
+ if ((PicoMCD&1) && (PicoOpt&0x8000))\r
+ memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
+ } else {\r
+ // sram save needs some special processing\r
+ // see if we have anything to save\r
+ for (; sram_size > 0; sram_size--)\r
+ if (sram_data[sram_size-1]) break;\r
+\r
+ if (sram_size) {\r
+ sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
+ if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
+ if (!sramFile) return -1;\r
+ ret = fwrite(sram_data, 1, sram_size, sramFile);\r
+ ret = (ret != sram_size) ? -1 : 0;\r
+ fclose(sramFile);\r
+#ifndef NO_SYNC\r
+ sync();\r
+#endif\r
+ }\r
+ }\r
+ return ret;\r
+ }\r
+ else\r
+ {\r
+ void *PmovFile = NULL;\r
+ if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
+ if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
+ emu_setSaveStateCbs(1);\r
+ if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
+ }\r
+ }\r
+ else\r
+ {\r
+ if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
+ emu_setSaveStateCbs(0);\r
+ }\r
+ }\r
+ if(PmovFile) {\r
+ ret = PmovState(load ? 6 : 5, PmovFile);\r
+ areaClose(PmovFile);\r
+ PmovFile = 0;\r
+ if (load) Pico.m.dirtyPal=1;\r
+#ifndef NO_SYNC\r
+ else sync();\r
+#endif\r
+ }\r
+ else ret = -1;\r
+ if (!ret)\r
+ strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
+ else\r
+ {\r
+ strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
+ ret = -1;\r
+ }\r
+\r
+ emu_noticeMsgUpdated();\r
+ return ret;\r
+ }\r
+}\r