3 * (C) notaz, 2007-2010
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5 * This work is licensed under the terms of MAME license.
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6 * See COPYING file in the top-level directory.
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16 #include "../libpicofe/posix.h"
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17 #include "../libpicofe/input.h"
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18 #include "../libpicofe/fonts.h"
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19 #include "../libpicofe/lprintf.h"
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20 #include "../libpicofe/plat.h"
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22 #include "input_pico.h"
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23 #include "menu_pico.h"
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26 #include <pico/pico_int.h>
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27 #include <pico/patch.h>
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28 #include <pico/cd/cue.h>
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31 #define STATUS_MSG_TIMEOUT 2000
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35 #if !SCREEN_SIZE_FIXED
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36 int g_screen_width = SCREEN_WIDTH;
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37 int g_screen_height = SCREEN_HEIGHT;
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40 char *PicoConfigFile = "config.cfg";
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41 currentConfig_t currentConfig, defaultConfig;
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43 int config_slot = 0, config_slot_current = 0;
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44 int pico_pen_x = 320/2, pico_pen_y = 240/2;
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45 int pico_inp_mode = 0;
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46 int engineState = PGS_Menu;
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48 /* tmp buff to reduce stack usage for plats with small stack */
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49 static char static_buff[512];
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50 /* TODO: len checking */
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51 char rom_fname_reload[512];
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52 char rom_fname_loaded[512];
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54 int reset_timing = 0;
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55 static unsigned int notice_msg_time; /* when started showing */
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56 static char noticeMsg[40];
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58 unsigned char *movie_data = NULL;
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59 static int movie_size = 0;
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62 /* don't use tolower() for easy old glibc binary compatibility */
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63 static void strlwr_(char *string)
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66 for (p = string; *p; p++)
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67 if ('A' <= *p && *p <= 'Z')
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71 static int try_rfn_cut(char *fname)
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76 p = fname + strlen(fname) - 1;
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77 for (; p > fname; p--)
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78 if (*p == '.') break;
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81 if((tmp = fopen(fname, "rb"))) {
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88 static void get_ext(const char *file, char *ext)
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92 p = file + strlen(file) - 4;
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93 if (p < file) p = file;
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99 static void fname_ext(char *dst, int dstlen, const char *prefix, const char *ext, const char *fname)
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101 int prefix_len = 0;
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106 int len = plat_get_root_dir(dst, dstlen);
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107 strcpy(dst + len, prefix);
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108 prefix_len = len + strlen(prefix);
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111 p = fname + strlen(fname) - 1;
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112 for (; p >= fname && *p != PATH_SEP_C; p--)
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115 strncpy(dst + prefix_len, p, dstlen - prefix_len - 1);
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117 dst[dstlen - 8] = 0;
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118 if (dst[strlen(dst) - 4] == '.')
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119 dst[strlen(dst) - 4] = 0;
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124 static void romfname_ext(char *dst, int dstlen, const char *prefix, const char *ext)
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126 fname_ext(dst, dstlen, prefix, ext, rom_fname_loaded);
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129 void emu_status_msg(const char *format, ...)
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134 va_start(vl, format);
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135 ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);
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138 /* be sure old text gets overwritten */
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139 for (; ret < 28; ret++)
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140 noticeMsg[ret] = ' ';
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141 noticeMsg[ret] = 0;
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143 notice_msg_time = plat_get_ticks_ms();
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146 static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };
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147 static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };
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148 static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
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150 static int find_bios(int region, char **bios_file)
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153 const char * const *files;
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156 if (region == 4) { // US
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157 files = biosfiles_us;
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158 count = sizeof(biosfiles_us) / sizeof(char *);
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159 } else if (region == 8) { // EU
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160 files = biosfiles_eu;
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161 count = sizeof(biosfiles_eu) / sizeof(char *);
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162 } else if (region == 1 || region == 2) {
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163 files = biosfiles_jp;
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164 count = sizeof(biosfiles_jp) / sizeof(char *);
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169 for (i = 0; i < count; i++)
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171 emu_make_path(static_buff, files[i], sizeof(static_buff) - 4);
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172 strcat(static_buff, ".bin");
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173 f = fopen(static_buff, "rb");
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176 static_buff[strlen(static_buff) - 4] = 0;
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177 strcat(static_buff, ".zip");
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178 f = fopen(static_buff, "rb");
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183 lprintf("using bios: %s\n", static_buff);
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186 *bios_file = static_buff;
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189 sprintf(static_buff, "no %s BIOS files found, read docs",
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190 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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191 menu_update_msg(static_buff);
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196 /* check if the name begins with BIOS name */
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198 static int emu_isBios(const char *name)
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201 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)
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202 if (strstr(name, biosfiles_us[i]) != NULL) return 1;
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203 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)
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204 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;
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205 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)
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206 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;
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211 static unsigned char id_header[0x100];
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213 /* checks if fname points to valid MegaCD image */
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214 static int emu_cd_check(int *pregion, const char *fname_in)
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216 const char *fname = fname_in;
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217 unsigned char buf[32];
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219 int region = 4; // 1: Japan, 4: US, 8: Europe
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221 cue_track_type type = CT_UNKNOWN;
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222 cue_data_t *cue_data = NULL;
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224 get_ext(fname_in, ext);
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225 if (strcasecmp(ext, ".cue") == 0) {
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226 cue_data = cue_parse(fname_in);
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227 if (cue_data != NULL) {
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228 fname = cue_data->tracks[1].fname;
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229 type = cue_data->tracks[1].type;
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235 cd_f = pm_open(fname);
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236 if (cue_data != NULL)
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237 cue_destroy(cue_data);
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239 if (cd_f == NULL) return 0; // let the upper level handle this
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241 if (pm_read(buf, 32, cd_f) != 32) {
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246 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {
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247 if (type && type != CT_ISO)
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248 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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249 type = CT_ISO; // Sega CD (ISO)
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251 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {
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252 if (type && type != CT_BIN)
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253 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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254 type = CT_BIN; // Sega CD (BIN)
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257 if (type == CT_UNKNOWN) {
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262 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);
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263 pm_read(id_header, sizeof(id_header), cd_f);
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265 /* it seems we have a CD image here. Try to detect region now.. */
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266 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
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267 pm_read(buf, 1, cd_f);
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270 if (buf[0] == 0x64) region = 8; // EU
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271 if (buf[0] == 0xa1) region = 1; // JAP
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273 lprintf("detected %s Sega/Mega CD image with %s region\n",
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274 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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276 if (pregion != NULL) *pregion = region;
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281 static int detect_media(const char *fname)
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283 static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 };
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284 static const char *sms_exts[] = { "sms", "gg", "sg" };
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285 static const char *md_exts[] = { "gen", "bin", "smd" };
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286 char buff0[32], buff[32];
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287 unsigned short *d16;
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292 get_ext(fname, ext);
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294 // detect wrong extensions
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295 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) // s.gz ~ .mds.gz
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298 /* don't believe in extensions, except .cue */
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299 if (strcasecmp(ext, ".cue") == 0)
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302 pmf = pm_open(fname);
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306 if (pm_read(buff0, 32, pmf) != 32) {
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311 if (strncasecmp("SEGADISCSYSTEM", buff0 + 0x00, 14) == 0 ||
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312 strncasecmp("SEGADISCSYSTEM", buff0 + 0x10, 14) == 0) {
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317 /* check for SMD evil */
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318 if (pmf->size >= 0x4200 && (pmf->size & 0x3fff) == 0x200) {
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319 if (pm_seek(pmf, sms_offsets[0] + 0x200, SEEK_SET) == sms_offsets[0] + 0x200 &&
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320 pm_read(buff, 16, pmf) == 16 &&
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321 strncmp("TMR SEGA", buff, 8) == 0)
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322 goto looks_like_sms;
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324 /* could parse further but don't bother */
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325 goto extension_check;
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328 /* MD header? Act as TMSS BIOS here */
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329 if (pm_seek(pmf, 0x100, SEEK_SET) == 0x100 && pm_read(buff, 16, pmf) == 16) {
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330 if (strncmp(buff, "SEGA", 4) == 0 || strncmp(buff, " SEG", 4) == 0)
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331 goto looks_like_md;
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334 for (i = 0; i < array_size(sms_offsets); i++) {
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335 if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i])
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338 if (pm_read(buff, 16, pmf) != 16)
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341 if (strncmp("TMR SEGA", buff, 8) == 0)
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342 goto looks_like_sms;
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346 /* probably some headerless thing. Maybe check the extension after all. */
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347 for (i = 0; i < array_size(md_exts); i++)
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348 if (strcasecmp(pmf->ext, md_exts[i]) == 0)
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349 goto looks_like_md;
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351 for (i = 0; i < array_size(sms_exts); i++)
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352 if (strcasecmp(pmf->ext, sms_exts[i]) == 0)
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353 goto looks_like_sms;
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355 /* If everything else fails, make a guess on the reset vector */
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356 d16 = (unsigned short *)(buff0 + 4);
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357 if ((((d16[0] << 16) | d16[1]) & 0xffffff) >= pmf->size) {
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358 lprintf("bad MD reset vector, assuming SMS\n");
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359 goto looks_like_sms;
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371 static int extract_text(char *dest, const unsigned char *src, int len, int swab)
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376 if (swab) swab = 1;
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378 for (i = len - 1; i >= 0; i--)
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380 if (src[i^swab] != ' ') break;
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384 for (i = 0; i < len; i++)
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386 unsigned char s = src[i^swab];
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387 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&
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388 s != '[' && s != ']' && s != '\\')
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394 sprintf(p, "\\%02x", s);
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402 static char *emu_make_rom_id(const char *fname)
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404 static char id_string[3+0xe*3+0x3*3+0x30*3+3];
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407 if (PicoAHW & PAHW_MCD) {
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408 strcpy(id_string, "CD|");
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411 else if (PicoAHW & PAHW_SMS)
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412 strcpy(id_string, "MS|");
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413 else strcpy(id_string, "MD|");
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416 if (!(PicoAHW & PAHW_SMS)) {
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417 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial
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418 id_string[pos] = '|'; pos++;
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419 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region
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420 id_string[pos] = '|'; pos++;
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421 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name
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422 id_string[pos] = 0;
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428 // can't find name in ROM, use filename
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429 fname_ext(id_string + 3, sizeof(id_string) - 3, NULL, NULL, fname);
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434 // buffer must be at least 150 byte long
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435 void emu_get_game_name(char *str150)
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437 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;
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440 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name
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442 for (s = d = str150 + 1; s < str150+ret; s++)
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444 if (*s == 0) break;
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445 if (*s != ' ' || d[-1] != ' ')
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451 static void shutdown_MCD(void)
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453 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)
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455 PicoAHW &= ~PAHW_MCD;
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458 static void system_announce(void)
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460 const char *sys_name, *tv_standard, *extra = "";
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463 if (PicoAHW & PAHW_SMS) {
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464 sys_name = "Master System";
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466 extra = " [no support]";
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468 } else if (PicoAHW & PAHW_PICO) {
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470 } else if (PicoAHW & PAHW_MCD) {
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471 sys_name = "Mega CD";
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472 if ((Pico.m.hardware & 0xc0) == 0x80)
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473 sys_name = "Sega CD";
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474 } else if (PicoAHW & PAHW_32X) {
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477 sys_name = "MegaDrive";
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478 if ((Pico.m.hardware & 0xc0) == 0x80)
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479 sys_name = "Genesis";
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481 tv_standard = Pico.m.pal ? "PAL" : "NTSC";
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482 fps = Pico.m.pal ? 50 : 60;
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484 emu_status_msg("%s %s / %dFPS%s", tv_standard, sys_name, fps, extra);
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487 // note: this function might mangle rom_fname
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488 // XXX: portions of this code should move to pico/
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489 int emu_reload_rom(char *rom_fname)
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491 unsigned int rom_size = 0;
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492 char *used_rom_name = rom_fname;
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493 unsigned char *rom_data = NULL;
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495 pm_file *rom = NULL;
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496 int cd_state = CIT_NOT_CD;
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497 int ret, media_type, cd_region;
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498 int cfg_loaded = 0, bad_rom = 0;
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500 lprintf("emu_ReloadRom(%s)\n", rom_fname);
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502 get_ext(rom_fname, ext);
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511 if (!strcmp(ext, ".gmv"))
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513 // check for both gmv and rom
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515 FILE *movie_file = fopen(rom_fname, "rb");
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517 menu_update_msg("Failed to open movie.");
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520 fseek(movie_file, 0, SEEK_END);
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521 movie_size = ftell(movie_file);
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522 fseek(movie_file, 0, SEEK_SET);
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523 if (movie_size < 64+3) {
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524 menu_update_msg("Invalid GMV file.");
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525 fclose(movie_file);
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528 movie_data = malloc(movie_size);
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529 if (movie_data == NULL) {
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530 menu_update_msg("low memory.");
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531 fclose(movie_file);
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534 dummy = fread(movie_data, 1, movie_size, movie_file);
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535 fclose(movie_file);
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536 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
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537 menu_update_msg("Invalid GMV file.");
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540 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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542 menu_update_msg("Could't find a ROM for movie.");
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545 get_ext(rom_fname, ext);
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546 lprintf("gmv loaded for %s\n", rom_fname);
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548 else if (!strcmp(ext, ".pat"))
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551 PicoPatchLoad(rom_fname);
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552 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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554 menu_update_msg("Could't find a ROM to patch.");
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557 get_ext(rom_fname, ext);
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560 media_type = detect_media(rom_fname);
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561 if (media_type == PM_BAD) {
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562 menu_update_msg("Not a ROM/CD img selected.");
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572 if (media_type == PM_CD)
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574 // check for MegaCD image
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575 cd_state = emu_cd_check(&cd_region, rom_fname);
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576 if (cd_state >= 0 && cd_state != CIT_NOT_CD)
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578 // valid CD image, check for BIOS..
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580 // we need to have config loaded at this point
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581 ret = emu_read_config(rom_fname, 0);
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582 if (!ret) emu_read_config(NULL, 0);
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585 if (PicoRegionOverride) {
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586 cd_region = PicoRegionOverride;
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587 lprintf("override region to %s\n", cd_region != 4 ?
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588 (cd_region == 8 ? "EU" : "JAP") : "USA");
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590 if (!find_bios(cd_region, &used_rom_name))
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593 get_ext(used_rom_name, ext);
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594 PicoAHW |= PAHW_MCD;
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597 menu_update_msg("Invalid CD image");
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601 else if (media_type == PM_MARK3) {
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602 lprintf("detected SMS ROM\n");
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603 PicoAHW = PAHW_SMS;
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606 rom = pm_open(used_rom_name);
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608 menu_update_msg("Failed to open ROM");
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612 menu_romload_prepare(used_rom_name); // also CD load
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613 used_rom_name = NULL; // uses static_buff
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615 ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);
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618 if (ret == 2) menu_update_msg("Out of memory");
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619 else if (ret == 3) menu_update_msg("Read failed");
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620 else menu_update_msg("PicoCartLoad() failed.");
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624 // detect wrong files
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625 if (strncmp((char *)rom_data, "Pico", 4) == 0)
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627 else if (!(PicoAHW & PAHW_SMS)) {
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628 unsigned short *d = (unsigned short *)(rom_data + 4);
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629 if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {
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630 lprintf("bad reset vector\n");
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636 menu_update_msg("Bad ROM detected.");
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640 // load config for this ROM (do this before insert to get correct region)
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641 if (!(PicoAHW & PAHW_MCD))
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642 memcpy(id_header, rom_data + 0x100, sizeof(id_header));
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644 ret = emu_read_config(rom_fname, 0);
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645 if (!ret) emu_read_config(NULL, 0);
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648 emu_make_path(static_buff, "carthw.cfg", sizeof(static_buff));
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649 if (PicoCartInsert(rom_data, rom_size, static_buff)) {
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650 menu_update_msg("Failed to load ROM.");
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654 // insert CD if it was detected
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655 if (cd_state != CIT_NOT_CD) {
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656 ret = Insert_CD(rom_fname, cd_state);
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659 rom_data = NULL; // freed by unload
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660 menu_update_msg("Insert_CD() failed, invalid CD image?");
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665 menu_romload_end();
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668 PicoPatchPrepare();
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672 // additional movie stuff
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675 if (movie_data[0x14] == '6')
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676 PicoOpt |= POPT_6BTN_PAD; // 6 button pad
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677 else PicoOpt &= ~POPT_6BTN_PAD;
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678 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing
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679 if (movie_data[0xF] >= 'A') {
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680 if (movie_data[0x16] & 0x80) {
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681 PicoRegionOverride = 8;
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683 PicoRegionOverride = 4;
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686 // TODO: bits 6 & 5
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688 movie_data[0x18+30] = 0;
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689 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);
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694 PicoOpt &= ~POPT_DIS_VDP_FIFO;
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697 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);
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698 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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701 // load SRAM for this ROM
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702 if (currentConfig.EmuOpt & EOPT_EN_SRAM)
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703 emu_save_load_game(1, 1);
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710 menu_romload_end();
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714 int emu_swap_cd(const char *fname)
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716 cd_img_type cd_type;
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719 cd_type = emu_cd_check(NULL, fname);
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720 if (cd_type != CIT_NOT_CD)
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721 ret = Insert_CD(fname, cd_type);
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723 menu_update_msg("Load failed, invalid CD image?");
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727 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);
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728 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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733 void emu_make_path(char *buff, const char *end, int size)
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737 end_len = strlen(end);
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738 pos = plat_get_root_dir(buff, size);
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739 strncpy(buff + pos, end, size - pos);
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740 buff[size - 1] = 0;
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741 if (pos + end_len > size - 1)
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742 lprintf("Warning: path truncated: %s\n", buff);
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745 static void make_config_cfg(char *cfg_buff_512)
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747 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);
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748 if (config_slot != 0)
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750 char *p = strrchr(cfg_buff_512, '.');
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752 p = cfg_buff_512 + strlen(cfg_buff_512);
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753 sprintf(p, ".%i.cfg", config_slot);
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755 cfg_buff_512[511] = 0;
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758 void emu_prep_defconfig(void)
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760 memset(&defaultConfig, 0, sizeof(defaultConfig));
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761 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_EN_CD_LEDS;
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762 defaultConfig.s_PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |
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763 POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES |
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764 POPT_EN_32X|POPT_EN_PWM;
\r
765 defaultConfig.s_PsndRate = 44100;
\r
766 defaultConfig.s_PicoRegion = 0; // auto
\r
767 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
\r
768 defaultConfig.s_PicoCDBuffers = 0;
\r
769 defaultConfig.confirm_save = EOPT_CONFIRM_SAVE;
\r
770 defaultConfig.Frameskip = -1; // auto
\r
771 defaultConfig.volume = 50;
\r
772 defaultConfig.gamma = 100;
\r
773 defaultConfig.scaling = 0;
\r
774 defaultConfig.turbo_rate = 15;
\r
776 // platform specific overrides
\r
777 pemu_prep_defconfig();
\r
780 void emu_set_defconfig(void)
\r
782 memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
\r
783 PicoOpt = currentConfig.s_PicoOpt;
\r
784 PsndRate = currentConfig.s_PsndRate;
\r
785 PicoRegionOverride = currentConfig.s_PicoRegion;
\r
786 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
\r
787 PicoCDBuffers = currentConfig.s_PicoCDBuffers;
\r
788 p32x_msh2_multiplier = MSH2_MULTI_DEFAULT;
\r
789 p32x_ssh2_multiplier = SSH2_MULTI_DEFAULT;
\r
792 int emu_read_config(const char *rom_fname, int no_defaults)
\r
798 emu_set_defconfig();
\r
800 if (rom_fname == NULL)
\r
803 make_config_cfg(cfg);
\r
804 ret = config_readsect(cfg, NULL);
\r
808 char *sect = emu_make_rom_id(rom_fname);
\r
810 if (config_slot != 0)
\r
811 sprintf(cfg, "game.%i.cfg", config_slot);
\r
812 else strcpy(cfg, "game.cfg");
\r
815 if (config_havesect(cfg, sect))
\r
817 // read user's config
\r
818 int vol = currentConfig.volume;
\r
819 emu_set_defconfig();
\r
820 ret = config_readsect(cfg, sect);
\r
821 currentConfig.volume = vol; // make vol global (bah)
\r
825 // read global config, and apply game_def.cfg on top
\r
826 make_config_cfg(cfg);
\r
827 config_readsect(cfg, NULL);
\r
828 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));
\r
829 ret = config_readsect(cfg, sect);
\r
834 lprintf("loaded cfg from sect \"%s\"\n", sect);
\r
838 pemu_validate_config();
\r
840 // some sanity checks
\r
842 /* TODO: mv to plat_validate_config() */
\r
843 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
\r
844 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;
\r
845 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;
\r
847 if (currentConfig.volume < 0 || currentConfig.volume > 99)
\r
848 currentConfig.volume = 50;
\r
851 config_slot_current = config_slot;
\r
857 int emu_write_config(int is_game)
\r
859 char cfg[512], *game_sect = NULL;
\r
860 int ret, write_lrom = 0;
\r
864 make_config_cfg(cfg);
\r
867 if (config_slot != 0)
\r
868 sprintf(cfg, "game.%i.cfg", config_slot);
\r
869 else strcpy(cfg, "game.cfg");
\r
870 game_sect = emu_make_rom_id(rom_fname_loaded);
\r
871 lprintf("emu_write_config: sect \"%s\"\n", game_sect);
\r
874 lprintf("emu_write_config: %s ", cfg);
\r
875 ret = config_writesect(cfg, game_sect);
\r
876 if (write_lrom) config_writelrom(cfg);
\r
880 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");
\r
882 if (ret == 0) config_slot_current = config_slot;
\r
887 /* always using built-in font */
\r
889 #define mk_text_out(name, type, val, topleft, step_x, step_y) \
\r
890 void name(int x, int y, const char *text) \
\r
892 int i, l, len = strlen(text); \
\r
893 type *screen = (type *)(topleft) + x * step_x + y * step_y; \
\r
895 for (i = 0; i < len; i++, screen += 8 * step_x) \
\r
897 for (l = 0; l < 8; l++) \
\r
899 unsigned char fd = fontdata8x8[text[i] * 8 + l];\
\r
900 type *s = screen + l * step_y; \
\r
901 if (fd&0x80) s[step_x * 0] = val; \
\r
902 if (fd&0x40) s[step_x * 1] = val; \
\r
903 if (fd&0x20) s[step_x * 2] = val; \
\r
904 if (fd&0x10) s[step_x * 3] = val; \
\r
905 if (fd&0x08) s[step_x * 4] = val; \
\r
906 if (fd&0x04) s[step_x * 5] = val; \
\r
907 if (fd&0x02) s[step_x * 6] = val; \
\r
908 if (fd&0x01) s[step_x * 7] = val; \
\r
913 mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)
\r
914 mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)
\r
915 mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,
\r
916 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
\r
917 mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,
\r
918 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
\r
923 void update_movie(void)
\r
925 int offs = Pico.m.frame_count*3 + 0x40;
\r
926 if (offs+3 > movie_size) {
\r
929 emu_status_msg("END OF MOVIE.");
\r
930 lprintf("END OF MOVIE.\n");
\r
933 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
\r
934 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C
\r
935 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A
\r
936 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B
\r
937 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
\r
938 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C
\r
939 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A
\r
940 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B
\r
941 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
\r
942 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
\r
943 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
\r
944 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
\r
945 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
\r
946 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
\r
950 static int try_ropen_file(const char *fname)
\r
954 f = fopen(fname, "rb");
\r
962 char *emu_get_save_fname(int load, int is_sram, int slot)
\r
964 char *saveFname = static_buff;
\r
969 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");
\r
970 romfname_ext(saveFname, sizeof(static_buff),
\r
971 (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);
\r
975 if (try_ropen_file(saveFname))
\r
978 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);
\r
979 if (try_ropen_file(saveFname))
\r
984 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";
\r
985 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";
\r
987 if (slot > 0 && slot < 10)
\r
988 sprintf(ext, ".%i", slot);
\r
989 strcat(ext, ext_main);
\r
992 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);
\r
996 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);
\r
997 if (try_ropen_file(saveFname))
\r
1000 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);
\r
1001 if (try_ropen_file(saveFname))
\r
1004 // try the other ext
\r
1006 if (slot > 0 && slot < 10)
\r
1007 sprintf(ext, ".%i", slot);
\r
1008 strcat(ext, ext_othr);
\r
1010 romfname_ext(saveFname, sizeof(static_buff), "mds"PATH_SEP, ext);
\r
1011 if (try_ropen_file(saveFname))
\r
1019 int emu_check_save_file(int slot, int *time)
\r
1021 return emu_get_save_fname(1, 0, slot) ? 1 : 0;
\r
1024 int emu_save_load_game(int load, int sram)
\r
1029 // make save filename
\r
1030 saveFname = emu_get_save_fname(load, sram, state_slot);
\r
1031 if (saveFname == NULL) {
\r
1033 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");
\r
1037 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
\r
1043 unsigned char *sram_data;
\r
1045 if (PicoAHW & PAHW_MCD)
\r
1047 if (PicoOpt & POPT_EN_MCD_RAMCART) {
\r
1048 sram_size = 0x12000;
\r
1049 sram_data = SRam.data;
\r
1051 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);
\r
1053 sram_size = 0x2000;
\r
1054 sram_data = Pico_mcd->bram;
\r
1055 truncate = 0; // the .brm may contain RAM cart data after normal brm
\r
1058 sram_size = SRam.size;
\r
1059 sram_data = SRam.data;
\r
1061 if (sram_data == NULL)
\r
1062 return 0; // SRam forcefully disabled for this game
\r
1066 sramFile = fopen(saveFname, "rb");
\r
1069 ret = fread(sram_data, 1, sram_size, sramFile);
\r
1070 ret = ret > 0 ? 0 : -1;
\r
1072 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))
\r
1073 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
\r
1075 // sram save needs some special processing
\r
1076 // see if we have anything to save
\r
1077 for (; sram_size > 0; sram_size--)
\r
1078 if (sram_data[sram_size-1]) break;
\r
1081 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");
\r
1082 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry
\r
1083 if (!sramFile) return -1;
\r
1084 ret = fwrite(sram_data, 1, sram_size, sramFile);
\r
1085 ret = (ret != sram_size) ? -1 : 0;
\r
1096 ret = PicoState(saveFname, !load);
\r
1099 if (!load) sync();
\r
1101 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");
\r
1103 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");
\r
1111 void emu_set_fastforward(int set_on)
\r
1113 static void *set_PsndOut = NULL;
\r
1114 static int set_Frameskip, set_EmuOpt, is_on = 0;
\r
1116 if (set_on && !is_on) {
\r
1117 set_PsndOut = PsndOut;
\r
1118 set_Frameskip = currentConfig.Frameskip;
\r
1119 set_EmuOpt = currentConfig.EmuOpt;
\r
1121 currentConfig.Frameskip = 8;
\r
1122 currentConfig.EmuOpt &= ~4;
\r
1123 currentConfig.EmuOpt |= 0x40000;
\r
1125 emu_status_msg("FAST FORWARD");
\r
1127 else if (!set_on && is_on) {
\r
1128 PsndOut = set_PsndOut;
\r
1129 currentConfig.Frameskip = set_Frameskip;
\r
1130 currentConfig.EmuOpt = set_EmuOpt;
\r
1136 static void emu_tray_open(void)
\r
1138 engineState = PGS_TrayMenu;
\r
1141 static void emu_tray_close(void)
\r
1143 emu_status_msg("CD tray closed.");
\r
1146 void emu_32x_startup(void)
\r
1148 plat_video_toggle_renderer(0, 0); // HACK
\r
1149 system_announce();
\r
1151 // force mode change event
\r
1152 rendstatus_old = -1;
\r
1155 void emu_reset_game(void)
\r
1161 void run_events_pico(unsigned int events)
\r
1165 if (events & PEV_PICO_SWINP) {
\r
1167 if (pico_inp_mode > 2)
\r
1168 pico_inp_mode = 0;
\r
1169 switch (pico_inp_mode) {
\r
1170 case 2: emu_status_msg("Input: Pen on Pad"); break;
\r
1171 case 1: emu_status_msg("Input: Pen on Storyware"); break;
\r
1172 case 0: emu_status_msg("Input: Joystick");
\r
1173 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
\r
1177 if (events & PEV_PICO_PPREV) {
\r
1178 PicoPicohw.page--;
\r
1179 if (PicoPicohw.page < 0)
\r
1180 PicoPicohw.page = 0;
\r
1181 emu_status_msg("Page %i", PicoPicohw.page);
\r
1183 if (events & PEV_PICO_PNEXT) {
\r
1184 PicoPicohw.page++;
\r
1185 if (PicoPicohw.page > 6)
\r
1186 PicoPicohw.page = 6;
\r
1187 emu_status_msg("Page %i", PicoPicohw.page);
\r
1190 if (pico_inp_mode == 0)
\r
1193 /* handle other input modes */
\r
1194 if (PicoPad[0] & 1) pico_pen_y--;
\r
1195 if (PicoPad[0] & 2) pico_pen_y++;
\r
1196 if (PicoPad[0] & 4) pico_pen_x--;
\r
1197 if (PicoPad[0] & 8) pico_pen_x++;
\r
1198 PicoPad[0] &= ~0x0f; // release UDLR
\r
1200 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
\r
1201 if (pico_pen_y < 8)
\r
1203 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)
\r
1204 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;
\r
1205 if (pico_pen_x < 0)
\r
1207 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)
\r
1208 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;
\r
1210 PicoPicohw.pen_pos[0] = pico_pen_x;
\r
1211 if (!(Pico.video.reg[12] & 1))
\r
1212 PicoPicohw.pen_pos[0] += pico_pen_x / 4;
\r
1213 PicoPicohw.pen_pos[0] += 0x3c;
\r
1214 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
\r
1217 static void do_turbo(int *pad, int acts)
\r
1219 static int turbo_pad = 0;
\r
1220 static unsigned char turbo_cnt[3] = { 0, 0, 0 };
\r
1221 int inc = currentConfig.turbo_rate * 2;
\r
1223 if (acts & 0x1000) {
\r
1224 turbo_cnt[0] += inc;
\r
1225 if (turbo_cnt[0] >= 60)
\r
1226 turbo_pad ^= 0x10, turbo_cnt[0] = 0;
\r
1228 if (acts & 0x2000) {
\r
1229 turbo_cnt[1] += inc;
\r
1230 if (turbo_cnt[1] >= 60)
\r
1231 turbo_pad ^= 0x20, turbo_cnt[1] = 0;
\r
1233 if (acts & 0x4000) {
\r
1234 turbo_cnt[2] += inc;
\r
1235 if (turbo_cnt[2] >= 60)
\r
1236 turbo_pad ^= 0x40, turbo_cnt[2] = 0;
\r
1238 *pad |= turbo_pad & (acts >> 8);
\r
1241 static void run_events_ui(unsigned int which)
\r
1243 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))
\r
1246 if ( emu_check_save_file(state_slot, NULL) &&
\r
1247 (((which & PEV_STATE_LOAD) && (currentConfig.confirm_save & EOPT_CONFIRM_LOAD)) ||
\r
1248 ((which & PEV_STATE_SAVE) && (currentConfig.confirm_save & EOPT_CONFIRM_SAVE))) )
\r
1254 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");
\r
1255 len = strlen(tmp);
\r
1256 nm = in_get_key_name(-1, -PBTN_MA3);
\r
1257 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);
\r
1258 len = strlen(tmp);
\r
1259 nm = in_get_key_name(-1, -PBTN_MBACK);
\r
1260 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);
\r
1262 plat_status_msg_busy_first(tmp);
\r
1264 in_set_config_int(0, IN_CFG_BLOCKING, 1);
\r
1265 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))
\r
1267 while ( !((keys = in_menu_wait_any(NULL, 50)) & (PBTN_MA3|PBTN_MBACK)) )
\r
1269 if (keys & PBTN_MBACK)
\r
1271 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))
\r
1273 in_set_config_int(0, IN_CFG_BLOCKING, 0);
\r
1276 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");
\r
1277 PicoStateProgressCB = plat_status_msg_busy_next;
\r
1278 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);
\r
1279 PicoStateProgressCB = NULL;
\r
1282 if (which & PEV_SWITCH_RND)
\r
1284 plat_video_toggle_renderer(1, 0);
\r
1286 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))
\r
1288 if (which & PEV_SSLOT_PREV) {
\r
1290 if (state_slot < 0)
\r
1294 if (state_slot > 9)
\r
1298 emu_status_msg("SAVE SLOT %i [%s]", state_slot,
\r
1299 emu_check_save_file(state_slot, NULL) ? "USED" : "FREE");
\r
1301 if (which & PEV_MENU)
\r
1302 engineState = PGS_Menu;
\r
1305 void emu_update_input(void)
\r
1307 static int prev_events = 0;
\r
1308 int actions[IN_BINDTYPE_COUNT] = { 0, };
\r
1309 int pl_actions[2];
\r
1312 in_update(actions);
\r
1314 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];
\r
1315 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;
\r
1317 PicoPad[0] = pl_actions[0] & 0xfff;
\r
1318 PicoPad[1] = pl_actions[1] & 0xfff;
\r
1320 if (pl_actions[0] & 0x7000)
\r
1321 do_turbo(&PicoPad[0], pl_actions[0]);
\r
1322 if (pl_actions[1] & 0x7000)
\r
1323 do_turbo(&PicoPad[1], pl_actions[1]);
\r
1325 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1327 // volume is treated in special way and triggered every frame
\r
1328 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))
\r
1329 plat_update_volume(1, events & PEV_VOL_UP);
\r
1331 if ((events ^ prev_events) & PEV_FF) {
\r
1332 emu_set_fastforward(events & PEV_FF);
\r
1333 plat_update_volume(0, 0);
\r
1337 events &= ~prev_events;
\r
1339 if (PicoAHW == PAHW_PICO)
\r
1340 run_events_pico(events);
\r
1342 run_events_ui(events);
\r
1346 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1349 static void mkdir_path(char *path_with_reserve, int pos, const char *name)
\r
1351 strcpy(path_with_reserve + pos, name);
\r
1352 if (plat_is_dir(path_with_reserve))
\r
1354 if (mkdir(path_with_reserve, 0777) < 0)
\r
1355 lprintf("failed to create: %s\n", path_with_reserve);
\r
1358 void emu_cmn_forced_frame(int no_scale, int do_emu)
\r
1360 int po_old = PicoOpt;
\r
1362 memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);
\r
1364 PicoOpt &= ~POPT_ALT_RENDERER;
\r
1365 PicoOpt |= POPT_ACC_SPRITES;
\r
1367 PicoOpt |= POPT_EN_SOFTSCALE;
\r
1369 PicoDrawSetOutFormat(PDF_RGB555, 1);
\r
1370 Pico.m.dirtyPal = 1;
\r
1374 PicoFrameDrawOnly();
\r
1379 void emu_init(void)
\r
1385 // FIXME: handle through menu, etc
\r
1387 f = fopen("32X_M_BIOS.BIN", "rb");
\r
1388 p32x_bios_m = malloc(2048);
\r
1389 fread(p32x_bios_m, 1, 2048, f);
\r
1391 f = fopen("32X_S_BIOS.BIN", "rb");
\r
1392 p32x_bios_s = malloc(1024);
\r
1393 fread(p32x_bios_s, 1, 1024, f);
\r
1397 /* make dirs for saves */
\r
1398 pos = plat_get_root_dir(path, sizeof(path) - 4);
\r
1399 mkdir_path(path, pos, "mds");
\r
1400 mkdir_path(path, pos, "srm");
\r
1401 mkdir_path(path, pos, "brm");
\r
1405 make_config_cfg(path);
\r
1406 config_readlrom(path);
\r
1409 PicoMessage = plat_status_msg_busy_next;
\r
1410 PicoMCDopenTray = emu_tray_open;
\r
1411 PicoMCDcloseTray = emu_tray_close;
\r
1414 void emu_finish(void)
\r
1417 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1418 emu_save_load_game(0, 1);
\r
1422 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {
\r
1424 make_config_cfg(cfg);
\r
1425 config_writelrom(cfg);
\r
1436 static void skip_frame(int do_audio)
\r
1438 PicoSkipFrame = do_audio ? 1 : 2;
\r
1440 PicoSkipFrame = 0;
\r
1443 /* our tick here is 1 us right now */
\r
1444 #define ms_to_ticks(x) (unsigned int)(x * 1000)
\r
1445 #define get_ticks() plat_get_ticks_us()
\r
1447 void emu_loop(void)
\r
1449 int pframes_done; /* "period" frames, used for sync */
\r
1450 int frames_done, frames_shown; /* actual frames for fps counter */
\r
1451 int target_fps, target_frametime;
\r
1452 unsigned int timestamp_base = 0, timestamp_fps;
\r
1453 char *notice_msg = NULL;
\r
1459 /* make sure we are in correct mode */
\r
1460 Pico.m.dirtyPal = 1;
\r
1461 rendstatus_old = -1;
\r
1463 PicoLoopPrepare();
\r
1465 // prepare CD buffer
\r
1466 if (PicoAHW & PAHW_MCD)
\r
1467 PicoCDBufferInit();
\r
1471 /* number of ticks per frame */
\r
1474 target_frametime = ms_to_ticks(1000) / 50;
\r
1477 target_frametime = ms_to_ticks(1000) / 60 + 1;
\r
1480 timestamp_fps = get_ticks();
\r
1483 frames_done = frames_shown = pframes_done = 0;
\r
1485 plat_video_wait_vsync();
\r
1487 /* loop with resync every 1 sec. */
\r
1488 while (engineState == PGS_Running)
\r
1490 unsigned int timestamp;
\r
1491 int diff, diff_lim;
\r
1493 pprof_start(main);
\r
1495 timestamp = get_ticks();
\r
1496 if (reset_timing) {
\r
1498 timestamp_base = timestamp;
\r
1502 // show notice_msg message?
\r
1503 if (notice_msg_time != 0)
\r
1505 static int noticeMsgSum;
\r
1506 if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {
\r
1507 notice_msg_time = 0;
\r
1508 plat_status_msg_clear();
\r
1509 notice_msg = NULL;
\r
1511 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];
\r
1512 if (sum != noticeMsgSum) {
\r
1513 plat_status_msg_clear();
\r
1514 noticeMsgSum = sum;
\r
1516 notice_msg = noticeMsg;
\r
1520 // second changed?
\r
1521 if (timestamp - timestamp_fps >= ms_to_ticks(1000))
\r
1524 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
1525 if (++bench == 10) {
\r
1527 bench_fps_s = bench_fps;
\r
1528 bf[bfp++ & 3] = bench_fps;
\r
1531 bench_fps += frames_shown;
\r
1532 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
1533 printf("%s\n", fpsbuff);
\r
1535 if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {
\r
1536 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
1537 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
1540 frames_shown = frames_done = 0;
\r
1541 timestamp_fps += ms_to_ticks(1000);
\r
1544 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
1547 if (timestamp - timestamp_base >= ms_to_ticks(1000))
\r
1549 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)
\r
1552 pframes_done -= target_fps;
\r
1553 if (pframes_done < -2) {
\r
1554 /* don't drag more than 2 frames behind */
\r
1555 pframes_done = -2;
\r
1556 timestamp_base = timestamp - 2 * target_frametime;
\r
1559 timestamp_base += ms_to_ticks(1000);
\r
1562 diff = timestamp - timestamp_base;
\r
1563 diff_lim = (pframes_done + 1) * target_frametime;
\r
1565 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
1567 for (i = 0; i < currentConfig.Frameskip; i++) {
\r
1568 emu_update_input();
\r
1570 pframes_done++; frames_done++;
\r
1571 diff_lim += target_frametime;
\r
1573 if (!(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT))) {
\r
1574 timestamp = get_ticks();
\r
1575 diff = timestamp - timestamp_base;
\r
1576 if (!reset_timing && diff < diff_lim) // we are too fast
\r
1577 plat_wait_till_us(timestamp_base + diff_lim);
\r
1581 else if (diff > diff_lim)
\r
1583 /* no time left for this frame - skip */
\r
1584 /* limit auto frameskip to 8 */
\r
1585 if (frames_done / 8 <= frames_shown) {
\r
1586 emu_update_input();
\r
1587 skip_frame(diff < diff_lim + target_frametime * 16);
\r
1588 pframes_done++; frames_done++;
\r
1593 emu_update_input();
\r
1595 pemu_finalize_frame(fpsbuff, notice_msg);
\r
1597 // plat_video_flip();
\r
1599 /* frame limiter */
\r
1600 if (!reset_timing && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT)))
\r
1602 timestamp = get_ticks();
\r
1603 diff = timestamp - timestamp_base;
\r
1605 // sleep or vsync if we are still too fast
\r
1606 if (diff < diff_lim)
\r
1608 // we are too fast
\r
1609 plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);
\r
1610 if (currentConfig.EmuOpt & EOPT_VSYNC)
\r
1611 plat_video_wait_vsync();
\r
1615 // XXX: for some plats it might be better to flip before vsync
\r
1616 // (due to shadow registers in display hw)
\r
1617 plat_video_flip();
\r
1619 pframes_done++; frames_done++; frames_shown++;
\r
1624 emu_set_fastforward(0);
\r
1627 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1628 plat_status_msg_busy_first("Writing SRAM/BRAM...");
\r
1629 emu_save_load_game(0, 1);
\r
1635 // pemu_loop_end() might want to do 1 frame for bg image,
\r
1636 // so free CD buffer here
\r
1637 if (PicoAHW & PAHW_MCD)
\r
1638 PicoCDBufferFree();
\r