1 // (c) Copyright 2006-2007 notaz, All rights reserved.
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2 // Free for non-commercial use.
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4 // For commercial use, separate licencing terms must be obtained.
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8 #include <ctype.h> // tolower
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16 #include "lprintf.h"
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21 #include <pico/pico_int.h>
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22 #include <pico/patch.h>
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23 #include <pico/cd/cue.h>
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24 #include <zlib/zlib.h>
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29 #if !SCREEN_SIZE_FIXED
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30 int g_screen_width = SCREEN_WIDTH;
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31 int g_screen_height = SCREEN_HEIGHT;
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34 char *PicoConfigFile = "config.cfg";
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35 currentConfig_t currentConfig, defaultConfig;
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36 char noticeMsg[64] = { 0, };
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38 int config_slot = 0, config_slot_current = 0;
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39 int pico_inp_mode = 0;
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40 int engineState = PGS_Menu;
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42 /* TODO: len checking */
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43 char rom_fname_reload[512] = { 0, };
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44 char rom_fname_loaded[512] = { 0, };
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47 unsigned char *movie_data = NULL;
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48 static int movie_size = 0;
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52 static void strlwr_(char *string)
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55 for (p = string; *p; p++)
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56 *p = (char)tolower(*p);
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59 static int try_rfn_cut(char *fname)
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64 p = fname + strlen(fname) - 1;
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65 for (; p > fname; p--)
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66 if (*p == '.') break;
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69 if((tmp = fopen(fname, "rb"))) {
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76 static void get_ext(char *file, char *ext)
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80 p = file + strlen(file) - 4;
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81 if (p < file) p = file;
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87 char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };
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88 char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };
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89 char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
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91 int emu_findBios(int region, char **bios_file)
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93 static char bios_path[1024];
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98 if (region == 4) { // US
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99 files = biosfiles_us;
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100 count = sizeof(biosfiles_us) / sizeof(char *);
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101 } else if (region == 8) { // EU
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102 files = biosfiles_eu;
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103 count = sizeof(biosfiles_eu) / sizeof(char *);
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104 } else if (region == 1 || region == 2) {
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105 files = biosfiles_jp;
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106 count = sizeof(biosfiles_jp) / sizeof(char *);
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111 for (i = 0; i < count; i++)
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113 emu_getMainDir(bios_path, sizeof(bios_path));
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114 strcat(bios_path, files[i]);
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115 strcat(bios_path, ".bin");
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116 f = fopen(bios_path, "rb");
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119 bios_path[strlen(bios_path) - 4] = 0;
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120 strcat(bios_path, ".zip");
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121 f = fopen(bios_path, "rb");
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126 lprintf("using bios: %s\n", bios_path);
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128 if (bios_file) *bios_file = bios_path;
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131 sprintf(bios_path, "no %s BIOS files found, read docs",
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132 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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133 me_update_msg(bios_path);
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138 /* check if the name begins with BIOS name */
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140 static int emu_isBios(const char *name)
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143 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)
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144 if (strstr(name, biosfiles_us[i]) != NULL) return 1;
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145 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)
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146 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;
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147 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)
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148 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;
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153 static unsigned char id_header[0x100];
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155 /* checks if fname points to valid MegaCD image
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156 * if so, checks for suitable BIOS */
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157 int emu_cdCheck(int *pregion, char *fname_in)
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159 unsigned char buf[32];
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161 int region = 4; // 1: Japan, 4: US, 8: Europe
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162 char ext[5], *fname = fname_in;
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163 cue_track_type type = CT_UNKNOWN;
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164 cue_data_t *cue_data = NULL;
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166 get_ext(fname_in, ext);
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167 if (strcasecmp(ext, ".cue") == 0) {
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168 cue_data = cue_parse(fname_in);
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169 if (cue_data != NULL) {
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170 fname = cue_data->tracks[1].fname;
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171 type = cue_data->tracks[1].type;
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177 cd_f = pm_open(fname);
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178 if (cue_data != NULL)
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179 cue_destroy(cue_data);
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181 if (cd_f == NULL) return 0; // let the upper level handle this
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183 if (pm_read(buf, 32, cd_f) != 32) {
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188 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {
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189 if (type && type != CT_ISO)
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190 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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191 type = CT_ISO; // Sega CD (ISO)
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193 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {
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194 if (type && type != CT_BIN)
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195 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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196 type = CT_BIN; // Sega CD (BIN)
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199 if (type == CT_UNKNOWN) {
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204 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);
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205 pm_read(id_header, sizeof(id_header), cd_f);
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207 /* it seems we have a CD image here. Try to detect region now.. */
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208 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
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209 pm_read(buf, 1, cd_f);
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212 if (buf[0] == 0x64) region = 8; // EU
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213 if (buf[0] == 0xa1) region = 1; // JAP
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215 lprintf("detected %s Sega/Mega CD image with %s region\n",
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216 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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218 if (pregion != NULL) *pregion = region;
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223 static int extract_text(char *dest, const unsigned char *src, int len, int swab)
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228 if (swab) swab = 1;
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230 for (i = len - 1; i >= 0; i--)
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232 if (src[i^swab] != ' ') break;
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236 for (i = 0; i < len; i++)
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238 unsigned char s = src[i^swab];
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239 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&
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240 s != '[' && s != ']' && s != '\\')
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246 sprintf(p, "\\%02x", s);
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254 char *emu_makeRomId(void)
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256 static char id_string[3+0xe*3+0x3*3+0x30*3+3];
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259 if (PicoAHW & PAHW_MCD) {
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260 strcpy(id_string, "CD|");
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263 else strcpy(id_string, "MD|");
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266 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial
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267 id_string[pos] = '|'; pos++;
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268 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region
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269 id_string[pos] = '|'; pos++;
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270 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name
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271 id_string[pos] = 0;
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276 // buffer must be at least 150 byte long
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277 void emu_getGameName(char *str150)
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279 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;
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282 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name
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284 for (s = d = str150 + 1; s < str150+ret; s++)
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286 if (*s == 0) break;
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287 if (*s != ' ' || d[-1] != ' ')
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293 // note: this function might mangle rom_fname
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294 int emu_ReloadRom(char *rom_fname)
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296 unsigned int rom_size = 0;
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297 char *used_rom_name = rom_fname;
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298 unsigned char *rom_data = NULL;
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300 pm_file *rom = NULL;
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301 int ret, cd_state, cd_region, cfg_loaded = 0;
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303 lprintf("emu_ReloadRom(%s)\n", rom_fname);
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305 get_ext(rom_fname, ext);
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307 // detect wrong extensions
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308 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz
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309 me_update_msg("Not a ROM/CD selected.");
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315 // check for movie file
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320 if (!strcmp(ext, ".gmv"))
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322 // check for both gmv and rom
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324 FILE *movie_file = fopen(rom_fname, "rb");
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326 me_update_msg("Failed to open movie.");
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329 fseek(movie_file, 0, SEEK_END);
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330 movie_size = ftell(movie_file);
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331 fseek(movie_file, 0, SEEK_SET);
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332 if(movie_size < 64+3) {
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333 me_update_msg("Invalid GMV file.");
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334 fclose(movie_file);
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337 movie_data = malloc(movie_size);
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338 if(movie_data == NULL) {
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339 me_update_msg("low memory.");
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340 fclose(movie_file);
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343 fread(movie_data, 1, movie_size, movie_file);
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344 fclose(movie_file);
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345 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
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346 me_update_msg("Invalid GMV file.");
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349 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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351 me_update_msg("Could't find a ROM for movie.");
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354 get_ext(rom_fname, ext);
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355 lprintf("gmv loaded for %s\n", rom_fname);
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357 else if (!strcmp(ext, ".pat"))
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360 PicoPatchLoad(rom_fname);
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361 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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363 me_update_msg("Could't find a ROM to patch.");
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366 get_ext(rom_fname, ext);
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371 // check for MegaCD image
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372 cd_state = emu_cdCheck(&cd_region, rom_fname);
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373 if (cd_state >= 0 && cd_state != CIT_NOT_CD)
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375 PicoAHW |= PAHW_MCD;
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376 // valid CD image, check for BIOS..
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378 // we need to have config loaded at this point
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379 ret = emu_ReadConfig(1, 1);
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380 if (!ret) emu_ReadConfig(0, 1);
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383 if (PicoRegionOverride) {
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384 cd_region = PicoRegionOverride;
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385 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");
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387 if (!emu_findBios(cd_region, &used_rom_name)) {
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389 PicoAHW &= ~PAHW_MCD;
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393 get_ext(used_rom_name, ext);
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397 if (PicoAHW & PAHW_MCD) Stop_CD();
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398 PicoAHW &= ~PAHW_MCD;
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401 rom = pm_open(used_rom_name);
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403 me_update_msg("Failed to open ROM/CD image");
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407 if (cd_state < 0) {
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408 me_update_msg("Invalid CD image");
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412 menu_romload_prepare(used_rom_name); // also CD load
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417 if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
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418 if (ret == 2) me_update_msg("Out of memory");
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419 else if (ret == 3) me_update_msg("Read failed");
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420 else me_update_msg("PicoCartLoad() failed.");
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426 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good
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427 if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
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428 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {
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429 if (rom_data) free(rom_data);
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430 me_update_msg("Not a ROM selected.");
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434 // load config for this ROM (do this before insert to get correct region)
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435 if (!(PicoAHW & PAHW_MCD))
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436 memcpy(id_header, rom_data + 0x100, sizeof(id_header));
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438 ret = emu_ReadConfig(1, 1);
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439 if (!ret) emu_ReadConfig(0, 1);
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442 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
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443 if (PicoCartInsert(rom_data, rom_size)) {
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444 me_update_msg("Failed to load ROM.");
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448 // insert CD if it was detected
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449 if (cd_state != CIT_NOT_CD) {
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450 ret = Insert_CD(rom_fname, cd_state);
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452 me_update_msg("Insert_CD() failed, invalid CD image?");
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457 menu_romload_end();
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460 PicoPatchPrepare();
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464 // additional movie stuff
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467 if (movie_data[0x14] == '6')
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468 PicoOpt |= POPT_6BTN_PAD; // 6 button pad
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469 else PicoOpt &= ~POPT_6BTN_PAD;
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470 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing
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471 if (movie_data[0xF] >= 'A') {
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472 if (movie_data[0x16] & 0x80) {
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473 PicoRegionOverride = 8;
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475 PicoRegionOverride = 4;
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478 // TODO: bits 6 & 5
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480 movie_data[0x18+30] = 0;
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481 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);
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485 PicoOpt &= ~POPT_DIS_VDP_FIFO;
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487 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");
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489 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");
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492 emu_noticeMsgUpdated();
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494 // load SRAM for this ROM
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495 if (currentConfig.EmuOpt & EOPT_USE_SRAM)
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496 emu_SaveLoadGame(1, 1);
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498 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);
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499 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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504 menu_romload_end();
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506 if (rom != NULL) pm_close(rom);
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511 void emu_shutdownMCD(void)
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513 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)
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515 PicoAHW &= ~PAHW_MCD;
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518 static void romfname_ext(char *dst, const char *prefix, const char *ext)
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521 int prefix_len = 0;
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523 // make save filename
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524 p = rom_fname_loaded + strlen(rom_fname_loaded) - 1;
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525 for (; p >= rom_fname_loaded && *p != PATH_SEP_C; p--); p++;
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528 int len = emu_getMainDir(dst, 512);
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529 strcpy(dst + len, prefix);
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530 prefix_len = len + strlen(prefix);
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533 else p = rom_fname_loaded; // backward compatibility
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535 strncpy(dst + prefix_len, p, 511-prefix_len);
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537 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;
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538 if (ext) strcat(dst, ext);
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542 static void make_config_cfg(char *cfg)
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545 len = emu_getMainDir(cfg, 512);
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546 strncpy(cfg + len, PicoConfigFile, 512-6-1-len);
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547 if (config_slot != 0)
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549 char *p = strrchr(cfg, '.');
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550 if (p == NULL) p = cfg + strlen(cfg);
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551 sprintf(p, ".%i.cfg", config_slot);
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556 void emu_packConfig(void)
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558 currentConfig.s_PicoOpt = PicoOpt;
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559 currentConfig.s_PsndRate = PsndRate;
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560 currentConfig.s_PicoRegion = PicoRegionOverride;
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561 currentConfig.s_PicoAutoRgnOrder = PicoAutoRgnOrder;
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562 currentConfig.s_PicoCDBuffers = PicoCDBuffers;
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565 void emu_unpackConfig(void)
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567 PicoOpt = currentConfig.s_PicoOpt;
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568 PsndRate = currentConfig.s_PsndRate;
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569 PicoRegionOverride = currentConfig.s_PicoRegion;
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570 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
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571 PicoCDBuffers = currentConfig.s_PicoCDBuffers;
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574 static void emu_setDefaultConfig(void)
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576 memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
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577 emu_unpackConfig();
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581 int emu_ReadConfig(int game, int no_defaults)
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589 emu_setDefaultConfig();
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590 make_config_cfg(cfg);
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591 ret = config_readsect(cfg, NULL);
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595 char *sect = emu_makeRomId();
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597 // try new .cfg way
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598 if (config_slot != 0)
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599 sprintf(cfg, "game.%i.cfg", config_slot);
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600 else strcpy(cfg, "game.cfg");
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603 if (config_havesect(cfg, sect))
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605 // read user's config
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606 int vol = currentConfig.volume;
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607 emu_setDefaultConfig();
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608 ret = config_readsect(cfg, sect);
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609 currentConfig.volume = vol; // make vol global (bah)
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613 // read global config, and apply game_def.cfg on top
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614 make_config_cfg(cfg);
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615 config_readsect(cfg, NULL);
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616 ret = config_readsect("game_def.cfg", sect);
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621 lprintf("loaded cfg from sect \"%s\"\n", sect);
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625 // some sanity checks
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626 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
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628 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;
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629 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;
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631 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;
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633 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;
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635 // if volume keys are unbound, bind them to volume control
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636 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {
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637 currentConfig.KeyBinds[23] = 1<<29; // vol up
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638 currentConfig.KeyBinds[22] = 1<<30; // vol down
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641 if (ret == 0) config_slot_current = config_slot;
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646 int emu_WriteConfig(int is_game)
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648 char cfg[512], *game_sect = NULL;
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649 int ret, write_lrom = 0;
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653 make_config_cfg(cfg);
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656 if (config_slot != 0)
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657 sprintf(cfg, "game.%i.cfg", config_slot);
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658 else strcpy(cfg, "game.cfg");
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659 game_sect = emu_makeRomId();
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660 lprintf("emu_WriteConfig: sect \"%s\"\n", game_sect);
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663 lprintf("emu_WriteConfig: %s ", cfg);
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664 ret = config_writesect(cfg, game_sect);
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665 if (write_lrom) config_writelrom(cfg);
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669 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");
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671 if (ret == 0) config_slot_current = config_slot;
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676 void emu_writelrom(void)
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679 make_config_cfg(cfg);
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680 config_writelrom(cfg);
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686 /* always using built-in font */
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688 #define mk_text_out(name, type, val) \
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689 void name(int x, int y, const char *text) \
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691 int i, l, len = strlen(text); \
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692 type *screen = (type *)g_screen_ptr + x + y * g_screen_width; \
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694 for (i = 0; i < len; i++, screen += 8) \
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696 for (l = 0; l < 8; l++) \
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698 unsigned char fd = fontdata8x8[text[i] * 8 + l];\
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699 type *s = screen + l * g_screen_width; \
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700 if (fd&0x80) s[0] = val; \
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701 if (fd&0x40) s[1] = val; \
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702 if (fd&0x20) s[2] = val; \
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703 if (fd&0x10) s[3] = val; \
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704 if (fd&0x08) s[4] = val; \
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705 if (fd&0x04) s[5] = val; \
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706 if (fd&0x02) s[6] = val; \
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707 if (fd&0x01) s[7] = val; \
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712 mk_text_out(emu_textOut8, unsigned char, 0xf0)
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713 mk_text_out(emu_textOut16, unsigned short, 0xffff)
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718 void emu_updateMovie(void)
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720 int offs = Pico.m.frame_count*3 + 0x40;
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721 if (offs+3 > movie_size) {
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724 strcpy(noticeMsg, "END OF MOVIE.");
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725 lprintf("END OF MOVIE.\n");
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726 emu_noticeMsgUpdated();
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729 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
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730 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C
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731 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A
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732 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B
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733 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
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734 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C
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735 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A
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736 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B
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737 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
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738 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
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739 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
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740 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
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741 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
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742 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
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747 static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)
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749 return gzread(file, p, _n);
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753 static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)
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755 return gzwrite(file, p, _n);
\r
758 static int try_ropen_file(const char *fname)
\r
762 f = fopen(fname, "rb");
\r
770 char *emu_GetSaveFName(int load, int is_sram, int slot)
\r
772 static char saveFname[512];
\r
777 romfname_ext(saveFname, (PicoAHW&1) ? "brm"PATH_SEP : "srm"PATH_SEP, (PicoAHW&1) ? ".brm" : ".srm");
\r
779 if (try_ropen_file(saveFname)) return saveFname;
\r
780 // try in current dir..
\r
781 romfname_ext(saveFname, NULL, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");
\r
782 if (try_ropen_file(saveFname)) return saveFname;
\r
783 return NULL; // give up
\r
789 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
\r
790 strcat(ext, (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds");
\r
792 romfname_ext(saveFname, "mds" PATH_SEP, ext);
\r
794 if (try_ropen_file(saveFname)) return saveFname;
\r
795 romfname_ext(saveFname, NULL, ext);
\r
796 if (try_ropen_file(saveFname)) return saveFname;
\r
797 // no gzipped states, search for non-gzipped
\r
798 if (currentConfig.EmuOpt & EOPT_GZIP_SAVES)
\r
801 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
\r
802 strcat(ext, ".mds");
\r
804 romfname_ext(saveFname, "mds"PATH_SEP, ext);
\r
805 if (try_ropen_file(saveFname)) return saveFname;
\r
806 romfname_ext(saveFname, NULL, ext);
\r
807 if (try_ropen_file(saveFname)) return saveFname;
\r
816 int emu_checkSaveFile(int slot)
\r
818 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;
\r
821 void emu_setSaveStateCbs(int gz)
\r
824 areaRead = gzRead2;
\r
825 areaWrite = gzWrite2;
\r
826 areaEof = (areaeof *) gzeof;
\r
827 areaSeek = (areaseek *) gzseek;
\r
828 areaClose = (areaclose *) gzclose;
\r
830 areaRead = (arearw *) fread;
\r
831 areaWrite = (arearw *) fwrite;
\r
832 areaEof = (areaeof *) feof;
\r
833 areaSeek = (areaseek *) fseek;
\r
834 areaClose = (areaclose *) fclose;
\r
838 int emu_SaveLoadGame(int load, int sram)
\r
843 // make save filename
\r
844 saveFname = emu_GetSaveFName(load, sram, state_slot);
\r
845 if (saveFname == NULL) {
\r
847 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");
\r
848 emu_noticeMsgUpdated();
\r
853 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
\r
859 unsigned char *sram_data;
\r
861 if (PicoAHW & PAHW_MCD)
\r
863 if (PicoOpt&POPT_EN_MCD_RAMCART) {
\r
864 sram_size = 0x12000;
\r
865 sram_data = SRam.data;
\r
867 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);
\r
869 sram_size = 0x2000;
\r
870 sram_data = Pico_mcd->bram;
\r
871 truncate = 0; // the .brm may contain RAM cart data after normal brm
\r
874 sram_size = SRam.end-SRam.start+1;
\r
875 if(Pico.m.sram_reg & 4) sram_size=0x2000;
\r
876 sram_data = SRam.data;
\r
878 if (!sram_data) return 0; // SRam forcefully disabled for this game
\r
882 sramFile = fopen(saveFname, "rb");
\r
883 if(!sramFile) return -1;
\r
884 fread(sram_data, 1, sram_size, sramFile);
\r
886 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))
\r
887 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
\r
889 // sram save needs some special processing
\r
890 // see if we have anything to save
\r
891 for (; sram_size > 0; sram_size--)
\r
892 if (sram_data[sram_size-1]) break;
\r
895 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");
\r
896 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry
\r
897 if (!sramFile) return -1;
\r
898 ret = fwrite(sram_data, 1, sram_size, sramFile);
\r
899 ret = (ret != sram_size) ? -1 : 0;
\r
910 void *PmovFile = NULL;
\r
911 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)
\r
913 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {
\r
914 emu_setSaveStateCbs(1);
\r
915 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);
\r
920 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {
\r
921 emu_setSaveStateCbs(0);
\r
925 ret = PmovState(load ? 6 : 5, PmovFile);
\r
926 areaClose(PmovFile);
\r
928 if (load) Pico.m.dirtyPal=1;
\r
935 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");
\r
938 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");
\r
942 emu_noticeMsgUpdated();
\r
947 void emu_changeFastForward(int set_on)
\r
949 static void *set_PsndOut = NULL;
\r
950 static int set_Frameskip, set_EmuOpt, is_on = 0;
\r
952 if (set_on && !is_on) {
\r
953 set_PsndOut = PsndOut;
\r
954 set_Frameskip = currentConfig.Frameskip;
\r
955 set_EmuOpt = currentConfig.EmuOpt;
\r
957 currentConfig.Frameskip = 8;
\r
958 currentConfig.EmuOpt &= ~4;
\r
959 currentConfig.EmuOpt |= 0x40000;
\r
961 strcpy(noticeMsg, "FAST FORWARD ");
\r
962 emu_noticeMsgUpdated();
\r
964 else if (!set_on && is_on) {
\r
965 PsndOut = set_PsndOut;
\r
966 currentConfig.Frameskip = set_Frameskip;
\r
967 currentConfig.EmuOpt = set_EmuOpt;
\r
973 void emu_RunEventsPico(unsigned int events)
\r
975 if (events & (1 << 3)) {
\r
977 if (pico_inp_mode > 2) pico_inp_mode = 0;
\r
978 switch (pico_inp_mode) {
\r
979 case 2: strcpy(noticeMsg, "Input: Pen on Pad "); break;
\r
980 case 1: strcpy(noticeMsg, "Input: Pen on Storyware"); break;
\r
981 case 0: strcpy(noticeMsg, "Input: Joytick ");
\r
982 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
\r
985 emu_noticeMsgUpdated();
\r
987 if (events & (1 << 4)) {
\r
989 if (PicoPicohw.page < 0) PicoPicohw.page = 0;
\r
990 sprintf(noticeMsg, "Page %i ", PicoPicohw.page);
\r
991 emu_noticeMsgUpdated();
\r
993 if (events & (1 << 5)) {
\r
995 if (PicoPicohw.page > 6) PicoPicohw.page = 6;
\r
996 sprintf(noticeMsg, "Page %i ", PicoPicohw.page);
\r
997 emu_noticeMsgUpdated();
\r
1001 void emu_DoTurbo(int *pad, int acts)
\r
1003 static int turbo_pad = 0;
\r
1004 static unsigned char turbo_cnt[3] = { 0, 0, 0 };
\r
1005 int inc = currentConfig.turbo_rate * 2;
\r
1007 if (acts & 0x1000) {
\r
1008 turbo_cnt[0] += inc;
\r
1009 if (turbo_cnt[0] >= 60)
\r
1010 turbo_pad ^= 0x10, turbo_cnt[0] = 0;
\r
1012 if (acts & 0x2000) {
\r
1013 turbo_cnt[1] += inc;
\r
1014 if (turbo_cnt[1] >= 60)
\r
1015 turbo_pad ^= 0x20, turbo_cnt[1] = 0;
\r
1017 if (acts & 0x4000) {
\r
1018 turbo_cnt[2] += inc;
\r
1019 if (turbo_cnt[2] >= 60)
\r
1020 turbo_pad ^= 0x40, turbo_cnt[2] = 0;
\r
1022 *pad |= turbo_pad & (acts >> 8);
\r