1 // (c) Copyright 2006-2009 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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16 #include "lprintf.h"
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22 #include <pico/pico_int.h>
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23 #include <pico/patch.h>
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24 #include <pico/cd/cue.h>
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27 #define STATUS_MSG_TIMEOUT 2000
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31 #if !SCREEN_SIZE_FIXED
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32 int g_screen_width = SCREEN_WIDTH;
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33 int g_screen_height = SCREEN_HEIGHT;
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36 char *PicoConfigFile = "config.cfg";
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37 currentConfig_t currentConfig, defaultConfig;
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39 int config_slot = 0, config_slot_current = 0;
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40 int pico_pen_x = 320/2, pico_pen_y = 240/2;
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41 int pico_inp_mode = 0;
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42 int engineState = PGS_Menu;
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44 /* TODO: len checking */
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45 char rom_fname_reload[512] = { 0, };
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46 char rom_fname_loaded[512] = { 0, };
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48 int reset_timing = 0;
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49 static unsigned int notice_msg_time; /* when started showing */
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50 static char noticeMsg[40];
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52 unsigned char *movie_data = NULL;
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53 static int movie_size = 0;
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56 /* don't use tolower() for easy old glibc binary compatibility */
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57 static void strlwr_(char *string)
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60 for (p = string; *p; p++)
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61 if ('A' <= *p && *p <= 'Z')
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65 static int try_rfn_cut(char *fname)
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70 p = fname + strlen(fname) - 1;
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71 for (; p > fname; p--)
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72 if (*p == '.') break;
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75 if((tmp = fopen(fname, "rb"))) {
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82 static void get_ext(const char *file, char *ext)
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86 p = file + strlen(file) - 4;
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87 if (p < file) p = file;
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93 void emu_status_msg(const char *format, ...)
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98 va_start(vl, format);
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99 ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);
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102 /* be sure old text gets overwritten */
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103 for (; ret < 28; ret++)
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104 noticeMsg[ret] = ' ';
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105 noticeMsg[ret] = 0;
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107 notice_msg_time = plat_get_ticks_ms();
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110 static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };
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111 static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };
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112 static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
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114 static int find_bios(int region, char **bios_file)
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116 static char bios_path[1024];
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118 const char * const *files;
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121 if (region == 4) { // US
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122 files = biosfiles_us;
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123 count = sizeof(biosfiles_us) / sizeof(char *);
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124 } else if (region == 8) { // EU
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125 files = biosfiles_eu;
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126 count = sizeof(biosfiles_eu) / sizeof(char *);
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127 } else if (region == 1 || region == 2) {
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128 files = biosfiles_jp;
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129 count = sizeof(biosfiles_jp) / sizeof(char *);
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134 for (i = 0; i < count; i++)
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136 emu_make_path(bios_path, files[i], sizeof(bios_path) - 4);
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137 strcat(bios_path, ".bin");
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138 f = fopen(bios_path, "rb");
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141 bios_path[strlen(bios_path) - 4] = 0;
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142 strcat(bios_path, ".zip");
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143 f = fopen(bios_path, "rb");
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148 lprintf("using bios: %s\n", bios_path);
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150 if (bios_file) *bios_file = bios_path;
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153 sprintf(bios_path, "no %s BIOS files found, read docs",
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154 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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155 me_update_msg(bios_path);
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160 /* check if the name begins with BIOS name */
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162 static int emu_isBios(const char *name)
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165 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)
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166 if (strstr(name, biosfiles_us[i]) != NULL) return 1;
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167 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)
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168 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;
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169 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)
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170 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;
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175 static unsigned char id_header[0x100];
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177 /* checks if fname points to valid MegaCD image */
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178 static int emu_cd_check(int *pregion, const char *fname_in)
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180 const char *fname = fname_in;
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181 unsigned char buf[32];
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183 int region = 4; // 1: Japan, 4: US, 8: Europe
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185 cue_track_type type = CT_UNKNOWN;
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186 cue_data_t *cue_data = NULL;
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188 get_ext(fname_in, ext);
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189 if (strcasecmp(ext, ".cue") == 0) {
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190 cue_data = cue_parse(fname_in);
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191 if (cue_data != NULL) {
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192 fname = cue_data->tracks[1].fname;
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193 type = cue_data->tracks[1].type;
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199 cd_f = pm_open(fname);
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200 if (cue_data != NULL)
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201 cue_destroy(cue_data);
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203 if (cd_f == NULL) return 0; // let the upper level handle this
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205 if (pm_read(buf, 32, cd_f) != 32) {
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210 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {
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211 if (type && type != CT_ISO)
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212 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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213 type = CT_ISO; // Sega CD (ISO)
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215 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {
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216 if (type && type != CT_BIN)
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217 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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218 type = CT_BIN; // Sega CD (BIN)
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221 if (type == CT_UNKNOWN) {
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226 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);
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227 pm_read(id_header, sizeof(id_header), cd_f);
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229 /* it seems we have a CD image here. Try to detect region now.. */
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230 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
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231 pm_read(buf, 1, cd_f);
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234 if (buf[0] == 0x64) region = 8; // EU
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235 if (buf[0] == 0xa1) region = 1; // JAP
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237 lprintf("detected %s Sega/Mega CD image with %s region\n",
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238 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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240 if (pregion != NULL) *pregion = region;
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245 static int detect_media(const char *fname)
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247 static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 };
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248 static const char *sms_exts[] = { "sms", "gg", "sg" };
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249 static const char *md_exts[] = { "gen", "bin", "smd" };
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250 char buff0[32], buff[32];
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251 unsigned short *d16;
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256 get_ext(fname, ext);
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258 // detect wrong extensions
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259 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) // s.gz ~ .mds.gz
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262 /* don't believe in extensions, except .cue */
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263 if (strcasecmp(ext, ".cue") == 0)
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266 pmf = pm_open(fname);
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270 if (pm_read(buff0, 32, pmf) != 32) {
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275 if (strncasecmp("SEGADISCSYSTEM", buff0 + 0x00, 14) == 0 ||
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276 strncasecmp("SEGADISCSYSTEM", buff0 + 0x10, 14) == 0) {
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281 /* check for SMD evil */
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282 if (pmf->size >= 0x4200 && (pmf->size & 0x3fff) == 0x200) {
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283 if (pm_seek(pmf, sms_offsets[0] + 0x200, SEEK_SET) == sms_offsets[0] + 0x200 &&
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284 pm_read(buff, 16, pmf) == 16 &&
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285 strncmp("TMR SEGA", buff, 8) == 0)
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286 goto looks_like_sms;
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288 /* could parse further but don't bother */
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289 goto extension_check;
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292 /* MD header? Act as TMSS BIOS here */
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293 if (pm_seek(pmf, 0x100, SEEK_SET) == 0x100 && pm_read(buff, 16, pmf) == 16) {
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294 if (strncmp(buff, "SEGA", 4) == 0 || strncmp(buff, " SEG", 4) == 0)
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295 goto looks_like_md;
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298 for (i = 0; i < array_size(sms_offsets); i++) {
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299 if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i])
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302 if (pm_read(buff, 16, pmf) != 16)
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305 if (strncmp("TMR SEGA", buff, 8) == 0)
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306 goto looks_like_sms;
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310 /* probably some headerless thing. Maybe check the extension after all. */
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311 for (i = 0; i < array_size(md_exts); i++)
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312 if (strcasecmp(pmf->ext, md_exts[i]) == 0)
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313 goto looks_like_md;
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315 for (i = 0; i < array_size(sms_exts); i++)
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316 if (strcasecmp(pmf->ext, sms_exts[i]) == 0)
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317 goto looks_like_sms;
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319 /* If everything else fails, make a guess on the reset vector */
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320 d16 = (unsigned short *)(buff0 + 4);
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321 if ((((d16[0] << 16) | d16[1]) & 0xffffff) >= pmf->size) {
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322 lprintf("bad MD reset vector, assuming SMS\n");
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323 goto looks_like_sms;
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335 static int extract_text(char *dest, const unsigned char *src, int len, int swab)
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340 if (swab) swab = 1;
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342 for (i = len - 1; i >= 0; i--)
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344 if (src[i^swab] != ' ') break;
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348 for (i = 0; i < len; i++)
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350 unsigned char s = src[i^swab];
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351 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&
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352 s != '[' && s != ']' && s != '\\')
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358 sprintf(p, "\\%02x", s);
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366 static char *emu_make_rom_id(void)
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368 static char id_string[3+0xe*3+0x3*3+0x30*3+3];
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371 if (PicoAHW & PAHW_MCD) {
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372 strcpy(id_string, "CD|");
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375 else strcpy(id_string, "MD|");
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378 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial
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379 id_string[pos] = '|'; pos++;
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380 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region
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381 id_string[pos] = '|'; pos++;
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382 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name
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383 id_string[pos] = 0;
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388 // buffer must be at least 150 byte long
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389 void emu_get_game_name(char *str150)
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391 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;
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394 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name
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396 for (s = d = str150 + 1; s < str150+ret; s++)
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398 if (*s == 0) break;
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399 if (*s != ' ' || d[-1] != ' ')
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405 static void shutdown_MCD(void)
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407 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)
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409 PicoAHW &= ~PAHW_MCD;
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412 // note: this function might mangle rom_fname
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413 // XXX: portions of this code should move to pico/
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414 int emu_reload_rom(char *rom_fname)
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416 unsigned int rom_size = 0;
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417 char *used_rom_name = rom_fname;
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418 unsigned char *rom_data = NULL;
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420 pm_file *rom = NULL;
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421 int cd_state = CIT_NOT_CD;
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422 int ret, media_type, cd_region;
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423 int cfg_loaded = 0, bad_rom = 0;
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425 lprintf("emu_ReloadRom(%s)\n", rom_fname);
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427 get_ext(rom_fname, ext);
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429 // check for movie file
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434 if (!strcmp(ext, ".gmv"))
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436 // check for both gmv and rom
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438 FILE *movie_file = fopen(rom_fname, "rb");
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440 me_update_msg("Failed to open movie.");
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443 fseek(movie_file, 0, SEEK_END);
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444 movie_size = ftell(movie_file);
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445 fseek(movie_file, 0, SEEK_SET);
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446 if(movie_size < 64+3) {
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447 me_update_msg("Invalid GMV file.");
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448 fclose(movie_file);
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451 movie_data = malloc(movie_size);
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452 if(movie_data == NULL) {
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453 me_update_msg("low memory.");
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454 fclose(movie_file);
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457 fread(movie_data, 1, movie_size, movie_file);
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458 fclose(movie_file);
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459 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
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460 me_update_msg("Invalid GMV file.");
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463 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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465 me_update_msg("Could't find a ROM for movie.");
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468 get_ext(rom_fname, ext);
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469 lprintf("gmv loaded for %s\n", rom_fname);
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471 else if (!strcmp(ext, ".pat"))
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474 PicoPatchLoad(rom_fname);
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475 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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477 me_update_msg("Could't find a ROM to patch.");
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480 get_ext(rom_fname, ext);
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483 media_type = detect_media(rom_fname);
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484 if (media_type == PM_BAD) {
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485 me_update_msg("Not a ROM/CD img selected.");
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493 if (media_type == PM_CD)
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495 // check for MegaCD image
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496 cd_state = emu_cd_check(&cd_region, rom_fname);
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497 if (cd_state >= 0 && cd_state != CIT_NOT_CD)
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499 // valid CD image, check for BIOS..
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501 // we need to have config loaded at this point
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502 ret = emu_read_config(1, 0);
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503 if (!ret) emu_read_config(0, 0);
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506 if (PicoRegionOverride) {
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507 cd_region = PicoRegionOverride;
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508 lprintf("override region to %s\n", cd_region != 4 ?
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509 (cd_region == 8 ? "EU" : "JAP") : "USA");
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511 if (!find_bios(cd_region, &used_rom_name))
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514 get_ext(used_rom_name, ext);
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515 PicoAHW |= PAHW_MCD;
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518 me_update_msg("Invalid CD image");
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522 else if (media_type == PM_MARK3) {
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523 lprintf("detected SMS ROM\n");
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524 PicoAHW = PAHW_SMS;
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527 rom = pm_open(used_rom_name);
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529 me_update_msg("Failed to open ROM");
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533 menu_romload_prepare(used_rom_name); // also CD load
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538 ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);
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541 if (ret == 2) me_update_msg("Out of memory");
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542 else if (ret == 3) me_update_msg("Read failed");
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543 else me_update_msg("PicoCartLoad() failed.");
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547 // detect wrong files
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548 if (strncmp((char *)rom_data, "Pico", 4) == 0)
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550 else if (!(PicoAHW & PAHW_SMS)) {
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551 unsigned short *d = (unsigned short *)(rom_data + 4);
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552 if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {
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553 lprintf("bad reset vector\n");
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559 me_update_msg("Bad ROM detected.");
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563 // load config for this ROM (do this before insert to get correct region)
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564 if (!(PicoAHW & PAHW_MCD))
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565 memcpy(id_header, rom_data + 0x100, sizeof(id_header));
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567 ret = emu_read_config(1, 0);
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568 if (!ret) emu_read_config(0, 0);
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571 if (PicoCartInsert(rom_data, rom_size)) {
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572 me_update_msg("Failed to load ROM.");
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576 // insert CD if it was detected
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577 if (cd_state != CIT_NOT_CD) {
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578 ret = Insert_CD(rom_fname, cd_state);
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581 rom_data = NULL; // freed by unload
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582 me_update_msg("Insert_CD() failed, invalid CD image?");
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587 menu_romload_end();
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590 PicoPatchPrepare();
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594 // additional movie stuff
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597 if (movie_data[0x14] == '6')
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598 PicoOpt |= POPT_6BTN_PAD; // 6 button pad
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599 else PicoOpt &= ~POPT_6BTN_PAD;
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600 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing
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601 if (movie_data[0xF] >= 'A') {
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602 if (movie_data[0x16] & 0x80) {
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603 PicoRegionOverride = 8;
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605 PicoRegionOverride = 4;
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608 // TODO: bits 6 & 5
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610 movie_data[0x18+30] = 0;
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611 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);
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615 const char *sys_name, *tv_standard;
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618 if (PicoAHW & PAHW_SMS) {
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619 sys_name = "Master System";
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621 sys_name = "MegaDrive";
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622 if ((Pico.m.hardware&0xc0) == 0x80)
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623 sys_name = "Genesis";
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625 tv_standard = Pico.m.pal ? "PAL" : "NTSC";
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626 fps = Pico.m.pal ? 50 : 60;
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628 emu_status_msg("%s %s / %dFPS", tv_standard, sys_name, fps);
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630 PicoOpt &= ~POPT_DIS_VDP_FIFO;
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633 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);
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634 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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637 // load SRAM for this ROM
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638 if (currentConfig.EmuOpt & EOPT_EN_SRAM)
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639 emu_save_load_game(1, 1);
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646 menu_romload_end();
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650 int emu_swap_cd(const char *fname)
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652 cd_img_type cd_type;
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655 cd_type = emu_cd_check(NULL, fname);
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656 if (cd_type != CIT_NOT_CD)
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657 ret = Insert_CD(fname, cd_type);
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659 me_update_msg("Load failed, invalid CD image?");
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663 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);
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664 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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668 static void romfname_ext(char *dst, const char *prefix, const char *ext)
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671 int prefix_len = 0;
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673 // make save filename
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674 p = rom_fname_loaded + strlen(rom_fname_loaded) - 1;
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675 for (; p >= rom_fname_loaded && *p != PATH_SEP_C; p--); p++;
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678 int len = plat_get_root_dir(dst, 512);
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679 strcpy(dst + len, prefix);
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680 prefix_len = len + strlen(prefix);
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683 else p = rom_fname_loaded; // backward compatibility
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685 strncpy(dst + prefix_len, p, 511-prefix_len);
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687 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;
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688 if (ext) strcat(dst, ext);
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691 void emu_make_path(char *buff, const char *end, int size)
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695 end_len = strlen(end);
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696 pos = plat_get_root_dir(buff, size);
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697 strncpy(buff + pos, end, size - pos);
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698 buff[size - 1] = 0;
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699 if (pos + end_len > size - 1)
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700 lprintf("Warning: path truncated: %s\n", buff);
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703 static void make_config_cfg(char *cfg_buff_512)
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705 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);
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706 if (config_slot != 0)
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708 char *p = strrchr(cfg_buff_512, '.');
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710 p = cfg_buff_512 + strlen(cfg_buff_512);
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711 sprintf(p, ".%i.cfg", config_slot);
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713 cfg_buff_512[511] = 0;
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716 void emu_set_defconfig(void)
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718 memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
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719 PicoOpt = currentConfig.s_PicoOpt;
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720 PsndRate = currentConfig.s_PsndRate;
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721 PicoRegionOverride = currentConfig.s_PicoRegion;
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722 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
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723 PicoCDBuffers = currentConfig.s_PicoCDBuffers;
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726 int emu_read_config(int game, int no_defaults)
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732 emu_set_defconfig();
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736 make_config_cfg(cfg);
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737 ret = config_readsect(cfg, NULL);
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741 char *sect = emu_make_rom_id();
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743 // try new .cfg way
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744 if (config_slot != 0)
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745 sprintf(cfg, "game.%i.cfg", config_slot);
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746 else strcpy(cfg, "game.cfg");
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749 if (config_havesect(cfg, sect))
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751 // read user's config
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752 int vol = currentConfig.volume;
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753 emu_set_defconfig();
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754 ret = config_readsect(cfg, sect);
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755 currentConfig.volume = vol; // make vol global (bah)
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759 // read global config, and apply game_def.cfg on top
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760 make_config_cfg(cfg);
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761 config_readsect(cfg, NULL);
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762 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));
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763 ret = config_readsect(cfg, sect);
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768 lprintf("loaded cfg from sect \"%s\"\n", sect);
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772 plat_validate_config();
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774 // some sanity checks
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776 /* TODO: mv to plat_validate_config() */
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777 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
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778 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;
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779 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;
\r
781 if (currentConfig.volume < 0 || currentConfig.volume > 99)
\r
782 currentConfig.volume = 50;
\r
785 config_slot_current = config_slot;
\r
791 int emu_write_config(int is_game)
\r
793 char cfg[512], *game_sect = NULL;
\r
794 int ret, write_lrom = 0;
\r
798 make_config_cfg(cfg);
\r
801 if (config_slot != 0)
\r
802 sprintf(cfg, "game.%i.cfg", config_slot);
\r
803 else strcpy(cfg, "game.cfg");
\r
804 game_sect = emu_make_rom_id();
\r
805 lprintf("emu_write_config: sect \"%s\"\n", game_sect);
\r
808 lprintf("emu_write_config: %s ", cfg);
\r
809 ret = config_writesect(cfg, game_sect);
\r
810 if (write_lrom) config_writelrom(cfg);
\r
814 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");
\r
816 if (ret == 0) config_slot_current = config_slot;
\r
821 /* always using built-in font */
\r
823 #define mk_text_out(name, type, val, topleft, step_x, step_y) \
\r
824 void name(int x, int y, const char *text) \
\r
826 int i, l, len = strlen(text); \
\r
827 type *screen = (type *)(topleft) + x * step_x + y * step_y; \
\r
829 for (i = 0; i < len; i++, screen += 8 * step_x) \
\r
831 for (l = 0; l < 8; l++) \
\r
833 unsigned char fd = fontdata8x8[text[i] * 8 + l];\
\r
834 type *s = screen + l * step_y; \
\r
835 if (fd&0x80) s[step_x * 0] = val; \
\r
836 if (fd&0x40) s[step_x * 1] = val; \
\r
837 if (fd&0x20) s[step_x * 2] = val; \
\r
838 if (fd&0x10) s[step_x * 3] = val; \
\r
839 if (fd&0x08) s[step_x * 4] = val; \
\r
840 if (fd&0x04) s[step_x * 5] = val; \
\r
841 if (fd&0x02) s[step_x * 6] = val; \
\r
842 if (fd&0x01) s[step_x * 7] = val; \
\r
847 mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)
\r
848 mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)
\r
849 mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,
\r
850 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
\r
851 mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,
\r
852 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
\r
857 void update_movie(void)
\r
859 int offs = Pico.m.frame_count*3 + 0x40;
\r
860 if (offs+3 > movie_size) {
\r
863 emu_status_msg("END OF MOVIE.");
\r
864 lprintf("END OF MOVIE.\n");
\r
867 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
\r
868 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C
\r
869 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A
\r
870 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B
\r
871 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
\r
872 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C
\r
873 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A
\r
874 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B
\r
875 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
\r
876 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
\r
877 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
\r
878 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
\r
879 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
\r
880 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
\r
884 static int try_ropen_file(const char *fname)
\r
888 f = fopen(fname, "rb");
\r
896 char *emu_get_save_fname(int load, int is_sram, int slot)
\r
898 static char saveFname[512];
\r
903 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");
\r
904 romfname_ext(saveFname, (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);
\r
908 if (try_ropen_file(saveFname))
\r
911 romfname_ext(saveFname, NULL, ext);
\r
912 if (try_ropen_file(saveFname))
\r
917 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";
\r
918 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";
\r
920 if (slot > 0 && slot < 10)
\r
921 sprintf(ext, ".%i", slot);
\r
922 strcat(ext, ext_main);
\r
925 romfname_ext(saveFname, "mds" PATH_SEP, ext);
\r
929 romfname_ext(saveFname, "mds" PATH_SEP, ext);
\r
930 if (try_ropen_file(saveFname))
\r
933 romfname_ext(saveFname, NULL, ext);
\r
934 if (try_ropen_file(saveFname))
\r
937 // try the other ext
\r
939 if (slot > 0 && slot < 10)
\r
940 sprintf(ext, ".%i", slot);
\r
941 strcat(ext, ext_othr);
\r
943 romfname_ext(saveFname, "mds"PATH_SEP, ext);
\r
944 if (try_ropen_file(saveFname))
\r
952 int emu_check_save_file(int slot)
\r
954 return emu_get_save_fname(1, 0, slot) ? 1 : 0;
\r
957 int emu_save_load_game(int load, int sram)
\r
962 // make save filename
\r
963 saveFname = emu_get_save_fname(load, sram, state_slot);
\r
964 if (saveFname == NULL) {
\r
966 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");
\r
970 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
\r
976 unsigned char *sram_data;
\r
978 if (PicoAHW & PAHW_MCD)
\r
980 if (PicoOpt & POPT_EN_MCD_RAMCART) {
\r
981 sram_size = 0x12000;
\r
982 sram_data = SRam.data;
\r
984 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);
\r
986 sram_size = 0x2000;
\r
987 sram_data = Pico_mcd->bram;
\r
988 truncate = 0; // the .brm may contain RAM cart data after normal brm
\r
991 sram_size = SRam.size;
\r
992 sram_data = SRam.data;
\r
994 if (!sram_data) return 0; // SRam forcefully disabled for this game
\r
998 sramFile = fopen(saveFname, "rb");
\r
999 if(!sramFile) return -1;
\r
1000 fread(sram_data, 1, sram_size, sramFile);
\r
1002 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))
\r
1003 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
\r
1005 // sram save needs some special processing
\r
1006 // see if we have anything to save
\r
1007 for (; sram_size > 0; sram_size--)
\r
1008 if (sram_data[sram_size-1]) break;
\r
1011 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");
\r
1012 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry
\r
1013 if (!sramFile) return -1;
\r
1014 ret = fwrite(sram_data, 1, sram_size, sramFile);
\r
1015 ret = (ret != sram_size) ? -1 : 0;
\r
1026 ret = PicoState(saveFname, !load);
\r
1029 if (!load) sync();
\r
1031 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");
\r
1033 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");
\r
1041 void emu_set_fastforward(int set_on)
\r
1043 static void *set_PsndOut = NULL;
\r
1044 static int set_Frameskip, set_EmuOpt, is_on = 0;
\r
1046 if (set_on && !is_on) {
\r
1047 set_PsndOut = PsndOut;
\r
1048 set_Frameskip = currentConfig.Frameskip;
\r
1049 set_EmuOpt = currentConfig.EmuOpt;
\r
1051 currentConfig.Frameskip = 8;
\r
1052 currentConfig.EmuOpt &= ~4;
\r
1053 currentConfig.EmuOpt |= 0x40000;
\r
1055 emu_status_msg("FAST FORWARD");
\r
1057 else if (!set_on && is_on) {
\r
1058 PsndOut = set_PsndOut;
\r
1059 currentConfig.Frameskip = set_Frameskip;
\r
1060 currentConfig.EmuOpt = set_EmuOpt;
\r
1066 static void emu_tray_open(void)
\r
1068 engineState = PGS_TrayMenu;
\r
1071 static void emu_tray_close(void)
\r
1073 emu_status_msg("CD tray closed.");
\r
1076 void emu_reset_game(void)
\r
1082 void run_events_pico(unsigned int events)
\r
1086 if (events & PEV_PICO_SWINP) {
\r
1088 if (pico_inp_mode > 2)
\r
1089 pico_inp_mode = 0;
\r
1090 switch (pico_inp_mode) {
\r
1091 case 2: emu_status_msg("Input: Pen on Pad"); break;
\r
1092 case 1: emu_status_msg("Input: Pen on Storyware"); break;
\r
1093 case 0: emu_status_msg("Input: Joystick");
\r
1094 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
\r
1098 if (events & PEV_PICO_PPREV) {
\r
1099 PicoPicohw.page--;
\r
1100 if (PicoPicohw.page < 0)
\r
1101 PicoPicohw.page = 0;
\r
1102 emu_status_msg("Page %i", PicoPicohw.page);
\r
1104 if (events & PEV_PICO_PNEXT) {
\r
1105 PicoPicohw.page++;
\r
1106 if (PicoPicohw.page > 6)
\r
1107 PicoPicohw.page = 6;
\r
1108 emu_status_msg("Page %i", PicoPicohw.page);
\r
1111 if (pico_inp_mode == 0)
\r
1114 /* handle other input modes */
\r
1115 if (PicoPad[0] & 1) pico_pen_y--;
\r
1116 if (PicoPad[0] & 2) pico_pen_y++;
\r
1117 if (PicoPad[0] & 4) pico_pen_x--;
\r
1118 if (PicoPad[0] & 8) pico_pen_x++;
\r
1119 PicoPad[0] &= ~0x0f; // release UDLR
\r
1121 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
\r
1122 if (pico_pen_y < 8)
\r
1124 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)
\r
1125 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;
\r
1126 if (pico_pen_x < 0)
\r
1128 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)
\r
1129 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;
\r
1131 PicoPicohw.pen_pos[0] = pico_pen_x;
\r
1132 if (!(Pico.video.reg[12] & 1))
\r
1133 PicoPicohw.pen_pos[0] += pico_pen_x / 4;
\r
1134 PicoPicohw.pen_pos[0] += 0x3c;
\r
1135 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
\r
1138 static void do_turbo(int *pad, int acts)
\r
1140 static int turbo_pad = 0;
\r
1141 static unsigned char turbo_cnt[3] = { 0, 0, 0 };
\r
1142 int inc = currentConfig.turbo_rate * 2;
\r
1144 if (acts & 0x1000) {
\r
1145 turbo_cnt[0] += inc;
\r
1146 if (turbo_cnt[0] >= 60)
\r
1147 turbo_pad ^= 0x10, turbo_cnt[0] = 0;
\r
1149 if (acts & 0x2000) {
\r
1150 turbo_cnt[1] += inc;
\r
1151 if (turbo_cnt[1] >= 60)
\r
1152 turbo_pad ^= 0x20, turbo_cnt[1] = 0;
\r
1154 if (acts & 0x4000) {
\r
1155 turbo_cnt[2] += inc;
\r
1156 if (turbo_cnt[2] >= 60)
\r
1157 turbo_pad ^= 0x40, turbo_cnt[2] = 0;
\r
1159 *pad |= turbo_pad & (acts >> 8);
\r
1162 static void run_events_ui(unsigned int which)
\r
1164 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))
\r
1167 if ( emu_check_save_file(state_slot) &&
\r
1168 (((which & PEV_STATE_LOAD) && (currentConfig.EmuOpt & EOPT_CONFIRM_LOAD)) ||
\r
1169 ((which & PEV_STATE_SAVE) && (currentConfig.EmuOpt & EOPT_CONFIRM_SAVE))) )
\r
1175 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");
\r
1176 len = strlen(tmp);
\r
1177 nm = in_get_key_name(-1, -PBTN_MA3);
\r
1178 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);
\r
1179 len = strlen(tmp);
\r
1180 nm = in_get_key_name(-1, -PBTN_MBACK);
\r
1181 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);
\r
1183 plat_status_msg_busy_first(tmp);
\r
1185 in_set_blocking(1);
\r
1186 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))
\r
1188 while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )
\r
1190 if (keys & PBTN_MBACK)
\r
1192 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))
\r
1194 in_set_blocking(0);
\r
1197 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");
\r
1198 PicoStateProgressCB = plat_status_msg_busy_next;
\r
1199 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);
\r
1200 PicoStateProgressCB = NULL;
\r
1203 if (which & PEV_SWITCH_RND)
\r
1205 plat_video_toggle_renderer(1, 0);
\r
1207 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))
\r
1209 if (which & PEV_SSLOT_PREV) {
\r
1211 if (state_slot < 0)
\r
1215 if (state_slot > 9)
\r
1219 emu_status_msg("SAVE SLOT %i [%s]", state_slot,
\r
1220 emu_check_save_file(state_slot) ? "USED" : "FREE");
\r
1222 if (which & PEV_MENU)
\r
1223 engineState = PGS_Menu;
\r
1226 void emu_update_input(void)
\r
1228 static int prev_events = 0;
\r
1229 int actions[IN_BINDTYPE_COUNT] = { 0, };
\r
1230 int pl_actions[2];
\r
1233 in_update(actions);
\r
1235 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];
\r
1236 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;
\r
1238 PicoPad[0] = pl_actions[0] & 0xfff;
\r
1239 PicoPad[1] = pl_actions[1] & 0xfff;
\r
1241 if (pl_actions[0] & 0x7000)
\r
1242 do_turbo(&PicoPad[0], pl_actions[0]);
\r
1243 if (pl_actions[1] & 0x7000)
\r
1244 do_turbo(&PicoPad[1], pl_actions[1]);
\r
1246 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1248 // volume is treated in special way and triggered every frame
\r
1249 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))
\r
1250 plat_update_volume(1, events & PEV_VOL_UP);
\r
1252 if ((events ^ prev_events) & PEV_FF) {
\r
1253 emu_set_fastforward(events & PEV_FF);
\r
1254 plat_update_volume(0, 0);
\r
1258 events &= ~prev_events;
\r
1260 if (PicoAHW == PAHW_PICO)
\r
1261 run_events_pico(events);
\r
1263 run_events_ui(events);
\r
1267 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1270 static void mkdir_path(char *path_with_reserve, int pos, const char *name)
\r
1272 strcpy(path_with_reserve + pos, name);
\r
1273 if (plat_is_dir(path_with_reserve))
\r
1275 if (mkdir(path_with_reserve, 0777) < 0)
\r
1276 lprintf("failed to create: %s\n", path_with_reserve);
\r
1279 void emu_init(void)
\r
1284 /* make dirs for saves */
\r
1285 pos = plat_get_root_dir(path, sizeof(path) - 4);
\r
1286 mkdir_path(path, pos, "mds");
\r
1287 mkdir_path(path, pos, "srm");
\r
1288 mkdir_path(path, pos, "brm");
\r
1290 make_config_cfg(path);
\r
1291 config_readlrom(path);
\r
1294 PicoMessage = plat_status_msg_busy_next;
\r
1295 PicoMCDopenTray = emu_tray_open;
\r
1296 PicoMCDcloseTray = emu_tray_close;
\r
1299 void emu_finish(void)
\r
1302 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1303 emu_save_load_game(0, 1);
\r
1307 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {
\r
1309 make_config_cfg(cfg);
\r
1310 config_writelrom(cfg);
\r
1319 static void skip_frame(int do_audio)
\r
1321 PicoSkipFrame = do_audio ? 1 : 2;
\r
1323 PicoSkipFrame = 0;
\r
1326 /* our tick here is 1 us right now */
\r
1327 #define ms_to_ticks(x) (unsigned int)(x * 1000)
\r
1328 #define get_ticks() plat_get_ticks_us()
\r
1330 void emu_loop(void)
\r
1332 int pframes_done; /* "period" frames, used for sync */
\r
1333 int frames_done, frames_shown; /* actual frames for fps counter */
\r
1334 int target_fps, target_frametime;
\r
1335 unsigned int timestamp_base = 0, timestamp_fps;
\r
1336 char *notice_msg = NULL;
\r
1342 /* make sure we are in correct mode */
\r
1343 Pico.m.dirtyPal = 1;
\r
1344 rendstatus_old = -1;
\r
1346 /* number of ticks per frame */
\r
1349 target_frametime = ms_to_ticks(1000) / 50;
\r
1352 target_frametime = ms_to_ticks(1000) / 60 + 1;
\r
1355 // prepare CD buffer
\r
1356 if (PicoAHW & PAHW_MCD)
\r
1357 PicoCDBufferInit();
\r
1361 timestamp_fps = get_ticks();
\r
1364 frames_done = frames_shown = pframes_done = 0;
\r
1366 plat_video_wait_vsync();
\r
1368 /* loop with resync every 1 sec. */
\r
1369 while (engineState == PGS_Running)
\r
1371 unsigned int timestamp;
\r
1372 int diff, diff_lim;
\r
1374 timestamp = get_ticks();
\r
1375 if (reset_timing) {
\r
1377 timestamp_base = timestamp;
\r
1381 // show notice_msg message?
\r
1382 if (notice_msg_time != 0)
\r
1384 static int noticeMsgSum;
\r
1385 if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {
\r
1386 notice_msg_time = 0;
\r
1387 plat_status_msg_clear();
\r
1388 notice_msg = NULL;
\r
1390 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];
\r
1391 if (sum != noticeMsgSum) {
\r
1392 plat_status_msg_clear();
\r
1393 noticeMsgSum = sum;
\r
1395 notice_msg = noticeMsg;
\r
1399 // second changed?
\r
1400 if (timestamp - timestamp_fps >= ms_to_ticks(1000))
\r
1403 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
1404 if (++bench == 10) {
\r
1406 bench_fps_s = bench_fps;
\r
1407 bf[bfp++ & 3] = bench_fps;
\r
1410 bench_fps += frames_shown;
\r
1411 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
1413 if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {
\r
1414 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
1415 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
1418 frames_shown = frames_done = 0;
\r
1419 timestamp_fps += ms_to_ticks(1000);
\r
1422 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
1425 if (timestamp - timestamp_base >= ms_to_ticks(1000))
\r
1427 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)
\r
1430 pframes_done -= target_fps;
\r
1431 /* don't allow it to drift during heavy slowdowns */
\r
1432 if (pframes_done < -5) {
\r
1436 if (pframes_done < -2)
\r
1437 pframes_done = -2;
\r
1439 timestamp_base += ms_to_ticks(1000);
\r
1442 diff = timestamp - timestamp_base;
\r
1443 diff_lim = (pframes_done + 1) * target_frametime;
\r
1445 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
1447 for (i = 0; i < currentConfig.Frameskip; i++) {
\r
1448 emu_update_input();
\r
1450 pframes_done++; frames_done++;
\r
1451 diff_lim += target_frametime;
\r
1453 if (!(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) {
\r
1454 timestamp = get_ticks();
\r
1455 diff = timestamp - timestamp_base;
\r
1456 if (!reset_timing && diff < diff_lim) // we are too fast
\r
1457 plat_wait_till_us(timestamp_base + diff_lim);
\r
1461 else if (diff > diff_lim)
\r
1463 /* no time left for this frame - skip */
\r
1464 if (diff - diff_lim >= ms_to_ticks(200)) {
\r
1465 /* if too much behind, reset instead */
\r
1469 emu_update_input();
\r
1470 skip_frame(diff < diff_lim + target_frametime * 2);
\r
1471 pframes_done++; frames_done++;
\r
1475 emu_update_input();
\r
1478 /* frame limiter */
\r
1479 if (!reset_timing && !(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT))
\r
1481 timestamp = get_ticks();
\r
1482 diff = timestamp - timestamp_base;
\r
1484 // sleep or vsync if we are still too fast
\r
1485 if (diff < diff_lim)
\r
1487 // we are too fast
\r
1488 plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);
\r
1489 if (currentConfig.EmuOpt & EOPT_VSYNC)
\r
1490 plat_video_wait_vsync();
\r
1494 pemu_update_display(fpsbuff, notice_msg);
\r
1496 pframes_done++; frames_done++; frames_shown++;
\r
1499 emu_set_fastforward(0);
\r
1502 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1503 plat_status_msg_busy_first("Writing SRAM/BRAM...");
\r
1504 emu_save_load_game(0, 1);
\r
1510 // pemu_loop_end() might want to do 1 frame for bg image,
\r
1511 // so free CD buffer here
\r
1512 if (PicoAHW & PAHW_MCD)
\r
1513 PicoCDBufferFree();
\r