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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13 #include "../libpicofe/posix.h"
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14 #include "../libpicofe/input.h"
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15 #include "../libpicofe/fonts.h"
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16 #include "../libpicofe/lprintf.h"
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17 #include "../libpicofe/plat.h"
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19 #include "input_pico.h"
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20 #include "menu_pico.h"
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23 #include <pico/pico_int.h>
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24 #include <pico/patch.h>
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25 #include <pico/cd/cue.h>
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28 #define STATUS_MSG_TIMEOUT 2000
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32 #if !SCREEN_SIZE_FIXED
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33 int g_screen_width = SCREEN_WIDTH;
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34 int g_screen_height = SCREEN_HEIGHT;
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37 char *PicoConfigFile = "config.cfg";
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38 currentConfig_t currentConfig, defaultConfig;
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40 int config_slot = 0, config_slot_current = 0;
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41 int pico_pen_x = 320/2, pico_pen_y = 240/2;
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42 int pico_inp_mode = 0;
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43 int engineState = PGS_Menu;
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45 /* tmp buff to reduce stack usage for plats with small stack */
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46 static char static_buff[512];
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47 /* TODO: len checking */
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48 char rom_fname_reload[512];
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49 char rom_fname_loaded[512];
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51 int reset_timing = 0;
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52 static unsigned int notice_msg_time; /* when started showing */
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53 static char noticeMsg[40];
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55 unsigned char *movie_data = NULL;
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56 static int movie_size = 0;
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59 /* don't use tolower() for easy old glibc binary compatibility */
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60 static void strlwr_(char *string)
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63 for (p = string; *p; p++)
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64 if ('A' <= *p && *p <= 'Z')
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68 static int try_rfn_cut(char *fname)
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73 p = fname + strlen(fname) - 1;
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74 for (; p > fname; p--)
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75 if (*p == '.') break;
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78 if((tmp = fopen(fname, "rb"))) {
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85 static void get_ext(const char *file, char *ext)
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89 p = file + strlen(file) - 4;
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90 if (p < file) p = file;
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96 static void fname_ext(char *dst, int dstlen, const char *prefix, const char *ext, const char *fname)
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103 int len = plat_get_root_dir(dst, dstlen);
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104 strcpy(dst + len, prefix);
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105 prefix_len = len + strlen(prefix);
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108 p = fname + strlen(fname) - 1;
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109 for (; p >= fname && *p != PATH_SEP_C; p--)
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112 strncpy(dst + prefix_len, p, dstlen - prefix_len - 1);
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114 dst[dstlen - 8] = 0;
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115 if (dst[strlen(dst) - 4] == '.')
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116 dst[strlen(dst) - 4] = 0;
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121 static void romfname_ext(char *dst, int dstlen, const char *prefix, const char *ext)
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123 fname_ext(dst, dstlen, prefix, ext, rom_fname_loaded);
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126 void emu_status_msg(const char *format, ...)
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131 va_start(vl, format);
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132 ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);
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135 /* be sure old text gets overwritten */
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136 for (; ret < 28; ret++)
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137 noticeMsg[ret] = ' ';
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138 noticeMsg[ret] = 0;
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140 notice_msg_time = plat_get_ticks_ms();
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143 static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };
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144 static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };
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145 static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
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147 static int find_bios(int region, char **bios_file)
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150 const char * const *files;
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153 if (region == 4) { // US
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154 files = biosfiles_us;
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155 count = sizeof(biosfiles_us) / sizeof(char *);
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156 } else if (region == 8) { // EU
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157 files = biosfiles_eu;
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158 count = sizeof(biosfiles_eu) / sizeof(char *);
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159 } else if (region == 1 || region == 2) {
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160 files = biosfiles_jp;
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161 count = sizeof(biosfiles_jp) / sizeof(char *);
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166 for (i = 0; i < count; i++)
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168 emu_make_path(static_buff, files[i], sizeof(static_buff) - 4);
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169 strcat(static_buff, ".bin");
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170 f = fopen(static_buff, "rb");
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173 static_buff[strlen(static_buff) - 4] = 0;
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174 strcat(static_buff, ".zip");
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175 f = fopen(static_buff, "rb");
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180 lprintf("using bios: %s\n", static_buff);
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183 *bios_file = static_buff;
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186 sprintf(static_buff, "no %s BIOS files found, read docs",
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187 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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188 menu_update_msg(static_buff);
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193 /* check if the name begins with BIOS name */
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195 static int emu_isBios(const char *name)
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198 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)
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199 if (strstr(name, biosfiles_us[i]) != NULL) return 1;
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200 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)
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201 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;
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202 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)
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203 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;
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208 static unsigned char id_header[0x100];
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210 /* checks if fname points to valid MegaCD image */
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211 static int emu_cd_check(int *pregion, const char *fname_in)
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213 const char *fname = fname_in;
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214 unsigned char buf[32];
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216 int region = 4; // 1: Japan, 4: US, 8: Europe
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218 cue_track_type type = CT_UNKNOWN;
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219 cue_data_t *cue_data = NULL;
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221 get_ext(fname_in, ext);
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222 if (strcasecmp(ext, ".cue") == 0) {
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223 cue_data = cue_parse(fname_in);
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224 if (cue_data != NULL) {
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225 fname = cue_data->tracks[1].fname;
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226 type = cue_data->tracks[1].type;
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232 cd_f = pm_open(fname);
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233 if (cue_data != NULL)
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234 cue_destroy(cue_data);
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236 if (cd_f == NULL) return 0; // let the upper level handle this
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238 if (pm_read(buf, 32, cd_f) != 32) {
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243 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {
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244 if (type && type != CT_ISO)
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245 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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246 type = CT_ISO; // Sega CD (ISO)
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248 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {
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249 if (type && type != CT_BIN)
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250 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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251 type = CT_BIN; // Sega CD (BIN)
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254 if (type == CT_UNKNOWN) {
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259 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);
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260 pm_read(id_header, sizeof(id_header), cd_f);
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262 /* it seems we have a CD image here. Try to detect region now.. */
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263 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
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264 pm_read(buf, 1, cd_f);
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267 if (buf[0] == 0x64) region = 8; // EU
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268 if (buf[0] == 0xa1) region = 1; // JAP
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270 lprintf("detected %s Sega/Mega CD image with %s region\n",
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271 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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273 if (pregion != NULL) *pregion = region;
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278 static int detect_media(const char *fname)
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280 static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 };
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281 static const char *sms_exts[] = { "sms", "gg", "sg" };
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282 static const char *md_exts[] = { "gen", "bin", "smd" };
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283 char buff0[32], buff[32];
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284 unsigned short *d16;
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289 get_ext(fname, ext);
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291 // detect wrong extensions
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292 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) // s.gz ~ .mds.gz
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295 /* don't believe in extensions, except .cue */
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296 if (strcasecmp(ext, ".cue") == 0)
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299 pmf = pm_open(fname);
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303 if (pm_read(buff0, 32, pmf) != 32) {
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308 if (strncasecmp("SEGADISCSYSTEM", buff0 + 0x00, 14) == 0 ||
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309 strncasecmp("SEGADISCSYSTEM", buff0 + 0x10, 14) == 0) {
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314 /* check for SMD evil */
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315 if (pmf->size >= 0x4200 && (pmf->size & 0x3fff) == 0x200) {
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316 if (pm_seek(pmf, sms_offsets[0] + 0x200, SEEK_SET) == sms_offsets[0] + 0x200 &&
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317 pm_read(buff, 16, pmf) == 16 &&
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318 strncmp("TMR SEGA", buff, 8) == 0)
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319 goto looks_like_sms;
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321 /* could parse further but don't bother */
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322 goto extension_check;
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325 /* MD header? Act as TMSS BIOS here */
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326 if (pm_seek(pmf, 0x100, SEEK_SET) == 0x100 && pm_read(buff, 16, pmf) == 16) {
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327 if (strncmp(buff, "SEGA", 4) == 0 || strncmp(buff, " SEG", 4) == 0)
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328 goto looks_like_md;
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331 for (i = 0; i < array_size(sms_offsets); i++) {
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332 if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i])
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335 if (pm_read(buff, 16, pmf) != 16)
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338 if (strncmp("TMR SEGA", buff, 8) == 0)
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339 goto looks_like_sms;
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343 /* probably some headerless thing. Maybe check the extension after all. */
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344 for (i = 0; i < array_size(md_exts); i++)
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345 if (strcasecmp(pmf->ext, md_exts[i]) == 0)
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346 goto looks_like_md;
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348 for (i = 0; i < array_size(sms_exts); i++)
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349 if (strcasecmp(pmf->ext, sms_exts[i]) == 0)
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350 goto looks_like_sms;
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352 /* If everything else fails, make a guess on the reset vector */
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353 d16 = (unsigned short *)(buff0 + 4);
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354 if ((((d16[0] << 16) | d16[1]) & 0xffffff) >= pmf->size) {
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355 lprintf("bad MD reset vector, assuming SMS\n");
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356 goto looks_like_sms;
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368 static int extract_text(char *dest, const unsigned char *src, int len, int swab)
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373 if (swab) swab = 1;
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375 for (i = len - 1; i >= 0; i--)
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377 if (src[i^swab] != ' ') break;
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381 for (i = 0; i < len; i++)
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383 unsigned char s = src[i^swab];
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384 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&
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385 s != '[' && s != ']' && s != '\\')
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391 sprintf(p, "\\%02x", s);
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399 static char *emu_make_rom_id(const char *fname)
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401 static char id_string[3+0xe*3+0x3*3+0x30*3+3];
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404 if (PicoAHW & PAHW_MCD) {
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405 strcpy(id_string, "CD|");
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408 else if (PicoAHW & PAHW_SMS)
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409 strcpy(id_string, "MS|");
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410 else strcpy(id_string, "MD|");
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413 if (!(PicoAHW & PAHW_SMS)) {
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414 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial
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415 id_string[pos] = '|'; pos++;
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416 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region
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417 id_string[pos] = '|'; pos++;
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418 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name
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419 id_string[pos] = 0;
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425 // can't find name in ROM, use filename
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426 fname_ext(id_string + 3, sizeof(id_string) - 3, NULL, NULL, fname);
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431 // buffer must be at least 150 byte long
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432 void emu_get_game_name(char *str150)
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434 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;
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437 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name
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439 for (s = d = str150 + 1; s < str150+ret; s++)
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441 if (*s == 0) break;
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442 if (*s != ' ' || d[-1] != ' ')
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448 static void shutdown_MCD(void)
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450 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)
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452 PicoAHW &= ~PAHW_MCD;
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455 static void system_announce(void)
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457 const char *sys_name, *tv_standard, *extra = "";
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460 if (PicoAHW & PAHW_SMS) {
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461 sys_name = "Master System";
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463 extra = " [no support]";
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465 } else if (PicoAHW & PAHW_PICO) {
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467 } else if (PicoAHW & PAHW_MCD) {
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468 sys_name = "Mega CD";
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469 if ((Pico.m.hardware & 0xc0) == 0x80)
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470 sys_name = "Sega CD";
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471 } else if (PicoAHW & PAHW_32X) {
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474 sys_name = "MegaDrive";
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475 if ((Pico.m.hardware & 0xc0) == 0x80)
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476 sys_name = "Genesis";
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478 tv_standard = Pico.m.pal ? "PAL" : "NTSC";
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479 fps = Pico.m.pal ? 50 : 60;
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481 emu_status_msg("%s %s / %dFPS%s", tv_standard, sys_name, fps, extra);
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484 // note: this function might mangle rom_fname
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485 // XXX: portions of this code should move to pico/
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486 int emu_reload_rom(char *rom_fname)
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488 unsigned int rom_size = 0;
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489 char *used_rom_name = rom_fname;
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490 unsigned char *rom_data = NULL;
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492 pm_file *rom = NULL;
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493 int cd_state = CIT_NOT_CD;
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494 int ret, media_type, cd_region;
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495 int cfg_loaded = 0, bad_rom = 0;
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497 lprintf("emu_ReloadRom(%s)\n", rom_fname);
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499 get_ext(rom_fname, ext);
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508 if (!strcmp(ext, ".gmv"))
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510 // check for both gmv and rom
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512 FILE *movie_file = fopen(rom_fname, "rb");
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514 menu_update_msg("Failed to open movie.");
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517 fseek(movie_file, 0, SEEK_END);
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518 movie_size = ftell(movie_file);
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519 fseek(movie_file, 0, SEEK_SET);
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520 if (movie_size < 64+3) {
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521 menu_update_msg("Invalid GMV file.");
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522 fclose(movie_file);
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525 movie_data = malloc(movie_size);
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526 if (movie_data == NULL) {
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527 menu_update_msg("low memory.");
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528 fclose(movie_file);
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531 dummy = fread(movie_data, 1, movie_size, movie_file);
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532 fclose(movie_file);
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533 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
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534 menu_update_msg("Invalid GMV file.");
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537 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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539 menu_update_msg("Could't find a ROM for movie.");
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542 get_ext(rom_fname, ext);
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543 lprintf("gmv loaded for %s\n", rom_fname);
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545 else if (!strcmp(ext, ".pat"))
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548 PicoPatchLoad(rom_fname);
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549 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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551 menu_update_msg("Could't find a ROM to patch.");
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554 get_ext(rom_fname, ext);
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557 media_type = detect_media(rom_fname);
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558 if (media_type == PM_BAD) {
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559 menu_update_msg("Not a ROM/CD img selected.");
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569 if (media_type == PM_CD)
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571 // check for MegaCD image
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572 cd_state = emu_cd_check(&cd_region, rom_fname);
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573 if (cd_state >= 0 && cd_state != CIT_NOT_CD)
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575 // valid CD image, check for BIOS..
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577 // we need to have config loaded at this point
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578 ret = emu_read_config(rom_fname, 0);
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579 if (!ret) emu_read_config(NULL, 0);
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582 if (PicoRegionOverride) {
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583 cd_region = PicoRegionOverride;
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584 lprintf("override region to %s\n", cd_region != 4 ?
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585 (cd_region == 8 ? "EU" : "JAP") : "USA");
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587 if (!find_bios(cd_region, &used_rom_name))
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590 get_ext(used_rom_name, ext);
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591 PicoAHW |= PAHW_MCD;
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594 menu_update_msg("Invalid CD image");
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598 else if (media_type == PM_MARK3) {
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599 lprintf("detected SMS ROM\n");
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600 PicoAHW = PAHW_SMS;
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603 rom = pm_open(used_rom_name);
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605 menu_update_msg("Failed to open ROM");
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609 menu_romload_prepare(used_rom_name); // also CD load
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610 used_rom_name = NULL; // uses static_buff
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612 ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);
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615 if (ret == 2) menu_update_msg("Out of memory");
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616 else if (ret == 3) menu_update_msg("Read failed");
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617 else menu_update_msg("PicoCartLoad() failed.");
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621 // detect wrong files
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622 if (strncmp((char *)rom_data, "Pico", 4) == 0)
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624 else if (!(PicoAHW & PAHW_SMS)) {
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625 unsigned short *d = (unsigned short *)(rom_data + 4);
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626 if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {
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627 lprintf("bad reset vector\n");
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633 menu_update_msg("Bad ROM detected.");
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637 // load config for this ROM (do this before insert to get correct region)
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638 if (!(PicoAHW & PAHW_MCD))
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639 memcpy(id_header, rom_data + 0x100, sizeof(id_header));
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641 ret = emu_read_config(rom_fname, 0);
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642 if (!ret) emu_read_config(NULL, 0);
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645 emu_make_path(static_buff, "carthw.cfg", sizeof(static_buff));
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646 if (PicoCartInsert(rom_data, rom_size, static_buff)) {
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647 menu_update_msg("Failed to load ROM.");
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651 // insert CD if it was detected
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652 if (cd_state != CIT_NOT_CD) {
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653 ret = Insert_CD(rom_fname, cd_state);
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656 rom_data = NULL; // freed by unload
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657 menu_update_msg("Insert_CD() failed, invalid CD image?");
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662 menu_romload_end();
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665 PicoPatchPrepare();
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669 // additional movie stuff
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672 if (movie_data[0x14] == '6')
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673 PicoOpt |= POPT_6BTN_PAD; // 6 button pad
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674 else PicoOpt &= ~POPT_6BTN_PAD;
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675 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing
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676 if (movie_data[0xF] >= 'A') {
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677 if (movie_data[0x16] & 0x80) {
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678 PicoRegionOverride = 8;
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680 PicoRegionOverride = 4;
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683 // TODO: bits 6 & 5
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685 movie_data[0x18+30] = 0;
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686 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);
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691 PicoOpt &= ~POPT_DIS_VDP_FIFO;
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694 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);
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695 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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698 // load SRAM for this ROM
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699 if (currentConfig.EmuOpt & EOPT_EN_SRAM)
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700 emu_save_load_game(1, 1);
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707 menu_romload_end();
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711 int emu_swap_cd(const char *fname)
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713 cd_img_type cd_type;
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716 cd_type = emu_cd_check(NULL, fname);
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717 if (cd_type != CIT_NOT_CD)
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718 ret = Insert_CD(fname, cd_type);
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720 menu_update_msg("Load failed, invalid CD image?");
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724 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);
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725 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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730 void emu_make_path(char *buff, const char *end, int size)
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734 end_len = strlen(end);
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735 pos = plat_get_root_dir(buff, size);
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736 strncpy(buff + pos, end, size - pos);
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737 buff[size - 1] = 0;
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738 if (pos + end_len > size - 1)
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739 lprintf("Warning: path truncated: %s\n", buff);
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742 static void make_config_cfg(char *cfg_buff_512)
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744 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);
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745 if (config_slot != 0)
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747 char *p = strrchr(cfg_buff_512, '.');
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749 p = cfg_buff_512 + strlen(cfg_buff_512);
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750 sprintf(p, ".%i.cfg", config_slot);
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752 cfg_buff_512[511] = 0;
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755 void emu_prep_defconfig(void)
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757 memset(&defaultConfig, 0, sizeof(defaultConfig));
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758 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_EN_CD_LEDS;
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759 defaultConfig.s_PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |
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760 POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES |
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761 POPT_EN_32X|POPT_EN_PWM;
\r
762 defaultConfig.s_PsndRate = 44100;
\r
763 defaultConfig.s_PicoRegion = 0; // auto
\r
764 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
\r
765 defaultConfig.s_PicoCDBuffers = 0;
\r
766 defaultConfig.confirm_save = EOPT_CONFIRM_SAVE;
\r
767 defaultConfig.Frameskip = -1; // auto
\r
768 defaultConfig.volume = 50;
\r
769 defaultConfig.gamma = 100;
\r
770 defaultConfig.scaling = 0;
\r
771 defaultConfig.turbo_rate = 15;
\r
773 // platform specific overrides
\r
774 pemu_prep_defconfig();
\r
777 void emu_set_defconfig(void)
\r
779 memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
\r
780 PicoOpt = currentConfig.s_PicoOpt;
\r
781 PsndRate = currentConfig.s_PsndRate;
\r
782 PicoRegionOverride = currentConfig.s_PicoRegion;
\r
783 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
\r
784 PicoCDBuffers = currentConfig.s_PicoCDBuffers;
\r
785 p32x_msh2_multiplier = MSH2_MULTI_DEFAULT;
\r
786 p32x_ssh2_multiplier = SSH2_MULTI_DEFAULT;
\r
789 int emu_read_config(const char *rom_fname, int no_defaults)
\r
795 emu_set_defconfig();
\r
797 if (rom_fname == NULL)
\r
800 make_config_cfg(cfg);
\r
801 ret = config_readsect(cfg, NULL);
\r
805 char *sect = emu_make_rom_id(rom_fname);
\r
807 if (config_slot != 0)
\r
808 sprintf(cfg, "game.%i.cfg", config_slot);
\r
809 else strcpy(cfg, "game.cfg");
\r
812 if (config_havesect(cfg, sect))
\r
814 // read user's config
\r
815 int vol = currentConfig.volume;
\r
816 emu_set_defconfig();
\r
817 ret = config_readsect(cfg, sect);
\r
818 currentConfig.volume = vol; // make vol global (bah)
\r
822 // read global config, and apply game_def.cfg on top
\r
823 make_config_cfg(cfg);
\r
824 config_readsect(cfg, NULL);
\r
825 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));
\r
826 ret = config_readsect(cfg, sect);
\r
831 lprintf("loaded cfg from sect \"%s\"\n", sect);
\r
835 pemu_validate_config();
\r
837 // some sanity checks
\r
839 /* TODO: mv to plat_validate_config() */
\r
840 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
\r
841 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;
\r
842 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;
\r
844 if (currentConfig.volume < 0 || currentConfig.volume > 99)
\r
845 currentConfig.volume = 50;
\r
848 config_slot_current = config_slot;
\r
854 int emu_write_config(int is_game)
\r
856 char cfg[512], *game_sect = NULL;
\r
857 int ret, write_lrom = 0;
\r
861 make_config_cfg(cfg);
\r
864 if (config_slot != 0)
\r
865 sprintf(cfg, "game.%i.cfg", config_slot);
\r
866 else strcpy(cfg, "game.cfg");
\r
867 game_sect = emu_make_rom_id(rom_fname_loaded);
\r
868 lprintf("emu_write_config: sect \"%s\"\n", game_sect);
\r
871 lprintf("emu_write_config: %s ", cfg);
\r
872 ret = config_writesect(cfg, game_sect);
\r
873 if (write_lrom) config_writelrom(cfg);
\r
877 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");
\r
879 if (ret == 0) config_slot_current = config_slot;
\r
884 /* always using built-in font */
\r
886 #define mk_text_out(name, type, val, topleft, step_x, step_y) \
\r
887 void name(int x, int y, const char *text) \
\r
889 int i, l, len = strlen(text); \
\r
890 type *screen = (type *)(topleft) + x * step_x + y * step_y; \
\r
892 for (i = 0; i < len; i++, screen += 8 * step_x) \
\r
894 for (l = 0; l < 8; l++) \
\r
896 unsigned char fd = fontdata8x8[text[i] * 8 + l];\
\r
897 type *s = screen + l * step_y; \
\r
898 if (fd&0x80) s[step_x * 0] = val; \
\r
899 if (fd&0x40) s[step_x * 1] = val; \
\r
900 if (fd&0x20) s[step_x * 2] = val; \
\r
901 if (fd&0x10) s[step_x * 3] = val; \
\r
902 if (fd&0x08) s[step_x * 4] = val; \
\r
903 if (fd&0x04) s[step_x * 5] = val; \
\r
904 if (fd&0x02) s[step_x * 6] = val; \
\r
905 if (fd&0x01) s[step_x * 7] = val; \
\r
910 mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)
\r
911 mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)
\r
912 mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,
\r
913 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
\r
914 mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,
\r
915 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
\r
920 void update_movie(void)
\r
922 int offs = Pico.m.frame_count*3 + 0x40;
\r
923 if (offs+3 > movie_size) {
\r
926 emu_status_msg("END OF MOVIE.");
\r
927 lprintf("END OF MOVIE.\n");
\r
930 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
\r
931 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C
\r
932 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A
\r
933 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B
\r
934 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
\r
935 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C
\r
936 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A
\r
937 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B
\r
938 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
\r
939 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
\r
940 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
\r
941 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
\r
942 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
\r
943 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
\r
947 static int try_ropen_file(const char *fname)
\r
951 f = fopen(fname, "rb");
\r
959 char *emu_get_save_fname(int load, int is_sram, int slot)
\r
961 char *saveFname = static_buff;
\r
966 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");
\r
967 romfname_ext(saveFname, sizeof(static_buff),
\r
968 (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);
\r
972 if (try_ropen_file(saveFname))
\r
975 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);
\r
976 if (try_ropen_file(saveFname))
\r
981 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";
\r
982 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";
\r
984 if (slot > 0 && slot < 10)
\r
985 sprintf(ext, ".%i", slot);
\r
986 strcat(ext, ext_main);
\r
989 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);
\r
993 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);
\r
994 if (try_ropen_file(saveFname))
\r
997 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);
\r
998 if (try_ropen_file(saveFname))
\r
1001 // try the other ext
\r
1003 if (slot > 0 && slot < 10)
\r
1004 sprintf(ext, ".%i", slot);
\r
1005 strcat(ext, ext_othr);
\r
1007 romfname_ext(saveFname, sizeof(static_buff), "mds"PATH_SEP, ext);
\r
1008 if (try_ropen_file(saveFname))
\r
1016 int emu_check_save_file(int slot, int *time)
\r
1018 return emu_get_save_fname(1, 0, slot) ? 1 : 0;
\r
1021 int emu_save_load_game(int load, int sram)
\r
1026 // make save filename
\r
1027 saveFname = emu_get_save_fname(load, sram, state_slot);
\r
1028 if (saveFname == NULL) {
\r
1030 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");
\r
1034 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
\r
1040 unsigned char *sram_data;
\r
1042 if (PicoAHW & PAHW_MCD)
\r
1044 if (PicoOpt & POPT_EN_MCD_RAMCART) {
\r
1045 sram_size = 0x12000;
\r
1046 sram_data = SRam.data;
\r
1048 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);
\r
1050 sram_size = 0x2000;
\r
1051 sram_data = Pico_mcd->bram;
\r
1052 truncate = 0; // the .brm may contain RAM cart data after normal brm
\r
1055 sram_size = SRam.size;
\r
1056 sram_data = SRam.data;
\r
1058 if (sram_data == NULL)
\r
1059 return 0; // SRam forcefully disabled for this game
\r
1063 sramFile = fopen(saveFname, "rb");
\r
1066 ret = fread(sram_data, 1, sram_size, sramFile);
\r
1067 ret = ret > 0 ? 0 : -1;
\r
1069 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))
\r
1070 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
\r
1072 // sram save needs some special processing
\r
1073 // see if we have anything to save
\r
1074 for (; sram_size > 0; sram_size--)
\r
1075 if (sram_data[sram_size-1]) break;
\r
1078 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");
\r
1079 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry
\r
1080 if (!sramFile) return -1;
\r
1081 ret = fwrite(sram_data, 1, sram_size, sramFile);
\r
1082 ret = (ret != sram_size) ? -1 : 0;
\r
1093 ret = PicoState(saveFname, !load);
\r
1096 if (!load) sync();
\r
1098 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");
\r
1100 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");
\r
1108 void emu_set_fastforward(int set_on)
\r
1110 static void *set_PsndOut = NULL;
\r
1111 static int set_Frameskip, set_EmuOpt, is_on = 0;
\r
1113 if (set_on && !is_on) {
\r
1114 set_PsndOut = PsndOut;
\r
1115 set_Frameskip = currentConfig.Frameskip;
\r
1116 set_EmuOpt = currentConfig.EmuOpt;
\r
1118 currentConfig.Frameskip = 8;
\r
1119 currentConfig.EmuOpt &= ~4;
\r
1120 currentConfig.EmuOpt |= 0x40000;
\r
1122 emu_status_msg("FAST FORWARD");
\r
1124 else if (!set_on && is_on) {
\r
1125 PsndOut = set_PsndOut;
\r
1126 currentConfig.Frameskip = set_Frameskip;
\r
1127 currentConfig.EmuOpt = set_EmuOpt;
\r
1133 static void emu_tray_open(void)
\r
1135 engineState = PGS_TrayMenu;
\r
1138 static void emu_tray_close(void)
\r
1140 emu_status_msg("CD tray closed.");
\r
1143 void emu_32x_startup(void)
\r
1145 plat_video_toggle_renderer(0, 0); // HACK
\r
1146 system_announce();
\r
1148 // force mode change event
\r
1149 rendstatus_old = -1;
\r
1152 void emu_reset_game(void)
\r
1158 void run_events_pico(unsigned int events)
\r
1162 if (events & PEV_PICO_SWINP) {
\r
1164 if (pico_inp_mode > 2)
\r
1165 pico_inp_mode = 0;
\r
1166 switch (pico_inp_mode) {
\r
1167 case 2: emu_status_msg("Input: Pen on Pad"); break;
\r
1168 case 1: emu_status_msg("Input: Pen on Storyware"); break;
\r
1169 case 0: emu_status_msg("Input: Joystick");
\r
1170 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
\r
1174 if (events & PEV_PICO_PPREV) {
\r
1175 PicoPicohw.page--;
\r
1176 if (PicoPicohw.page < 0)
\r
1177 PicoPicohw.page = 0;
\r
1178 emu_status_msg("Page %i", PicoPicohw.page);
\r
1180 if (events & PEV_PICO_PNEXT) {
\r
1181 PicoPicohw.page++;
\r
1182 if (PicoPicohw.page > 6)
\r
1183 PicoPicohw.page = 6;
\r
1184 emu_status_msg("Page %i", PicoPicohw.page);
\r
1187 if (pico_inp_mode == 0)
\r
1190 /* handle other input modes */
\r
1191 if (PicoPad[0] & 1) pico_pen_y--;
\r
1192 if (PicoPad[0] & 2) pico_pen_y++;
\r
1193 if (PicoPad[0] & 4) pico_pen_x--;
\r
1194 if (PicoPad[0] & 8) pico_pen_x++;
\r
1195 PicoPad[0] &= ~0x0f; // release UDLR
\r
1197 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
\r
1198 if (pico_pen_y < 8)
\r
1200 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)
\r
1201 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;
\r
1202 if (pico_pen_x < 0)
\r
1204 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)
\r
1205 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;
\r
1207 PicoPicohw.pen_pos[0] = pico_pen_x;
\r
1208 if (!(Pico.video.reg[12] & 1))
\r
1209 PicoPicohw.pen_pos[0] += pico_pen_x / 4;
\r
1210 PicoPicohw.pen_pos[0] += 0x3c;
\r
1211 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
\r
1214 static void do_turbo(int *pad, int acts)
\r
1216 static int turbo_pad = 0;
\r
1217 static unsigned char turbo_cnt[3] = { 0, 0, 0 };
\r
1218 int inc = currentConfig.turbo_rate * 2;
\r
1220 if (acts & 0x1000) {
\r
1221 turbo_cnt[0] += inc;
\r
1222 if (turbo_cnt[0] >= 60)
\r
1223 turbo_pad ^= 0x10, turbo_cnt[0] = 0;
\r
1225 if (acts & 0x2000) {
\r
1226 turbo_cnt[1] += inc;
\r
1227 if (turbo_cnt[1] >= 60)
\r
1228 turbo_pad ^= 0x20, turbo_cnt[1] = 0;
\r
1230 if (acts & 0x4000) {
\r
1231 turbo_cnt[2] += inc;
\r
1232 if (turbo_cnt[2] >= 60)
\r
1233 turbo_pad ^= 0x40, turbo_cnt[2] = 0;
\r
1235 *pad |= turbo_pad & (acts >> 8);
\r
1238 static void run_events_ui(unsigned int which)
\r
1240 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))
\r
1243 if ( emu_check_save_file(state_slot, NULL) &&
\r
1244 (((which & PEV_STATE_LOAD) && (currentConfig.confirm_save & EOPT_CONFIRM_LOAD)) ||
\r
1245 ((which & PEV_STATE_SAVE) && (currentConfig.confirm_save & EOPT_CONFIRM_SAVE))) )
\r
1251 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");
\r
1252 len = strlen(tmp);
\r
1253 nm = in_get_key_name(-1, -PBTN_MA3);
\r
1254 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);
\r
1255 len = strlen(tmp);
\r
1256 nm = in_get_key_name(-1, -PBTN_MBACK);
\r
1257 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);
\r
1259 plat_status_msg_busy_first(tmp);
\r
1261 in_set_config_int(0, IN_CFG_BLOCKING, 1);
\r
1262 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))
\r
1264 while ( !((keys = in_menu_wait_any(NULL, 50)) & (PBTN_MA3|PBTN_MBACK)) )
\r
1266 if (keys & PBTN_MBACK)
\r
1268 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))
\r
1270 in_set_config_int(0, IN_CFG_BLOCKING, 0);
\r
1273 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");
\r
1274 PicoStateProgressCB = plat_status_msg_busy_next;
\r
1275 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);
\r
1276 PicoStateProgressCB = NULL;
\r
1279 if (which & PEV_SWITCH_RND)
\r
1281 plat_video_toggle_renderer(1, 0);
\r
1283 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))
\r
1285 if (which & PEV_SSLOT_PREV) {
\r
1287 if (state_slot < 0)
\r
1291 if (state_slot > 9)
\r
1295 emu_status_msg("SAVE SLOT %i [%s]", state_slot,
\r
1296 emu_check_save_file(state_slot, NULL) ? "USED" : "FREE");
\r
1298 if (which & PEV_MENU)
\r
1299 engineState = PGS_Menu;
\r
1302 void emu_update_input(void)
\r
1304 static int prev_events = 0;
\r
1305 int actions[IN_BINDTYPE_COUNT] = { 0, };
\r
1306 int pl_actions[2];
\r
1309 in_update(actions);
\r
1311 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];
\r
1312 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;
\r
1314 PicoPad[0] = pl_actions[0] & 0xfff;
\r
1315 PicoPad[1] = pl_actions[1] & 0xfff;
\r
1317 if (pl_actions[0] & 0x7000)
\r
1318 do_turbo(&PicoPad[0], pl_actions[0]);
\r
1319 if (pl_actions[1] & 0x7000)
\r
1320 do_turbo(&PicoPad[1], pl_actions[1]);
\r
1322 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1324 // volume is treated in special way and triggered every frame
\r
1325 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))
\r
1326 plat_update_volume(1, events & PEV_VOL_UP);
\r
1328 if ((events ^ prev_events) & PEV_FF) {
\r
1329 emu_set_fastforward(events & PEV_FF);
\r
1330 plat_update_volume(0, 0);
\r
1334 events &= ~prev_events;
\r
1336 if (PicoAHW == PAHW_PICO)
\r
1337 run_events_pico(events);
\r
1339 run_events_ui(events);
\r
1343 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1346 static void mkdir_path(char *path_with_reserve, int pos, const char *name)
\r
1348 strcpy(path_with_reserve + pos, name);
\r
1349 if (plat_is_dir(path_with_reserve))
\r
1351 if (mkdir(path_with_reserve, 0777) < 0)
\r
1352 lprintf("failed to create: %s\n", path_with_reserve);
\r
1355 void emu_cmn_forced_frame(int no_scale, int do_emu)
\r
1357 int po_old = PicoOpt;
\r
1359 memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);
\r
1361 PicoOpt &= ~POPT_ALT_RENDERER;
\r
1362 PicoOpt |= POPT_ACC_SPRITES;
\r
1364 PicoOpt |= POPT_EN_SOFTSCALE;
\r
1366 PicoDrawSetOutFormat(PDF_RGB555, 1);
\r
1367 Pico.m.dirtyPal = 1;
\r
1371 PicoFrameDrawOnly();
\r
1376 void emu_init(void)
\r
1382 // FIXME: handle through menu, etc
\r
1384 f = fopen("32X_M_BIOS.BIN", "rb");
\r
1385 p32x_bios_m = malloc(2048);
\r
1386 fread(p32x_bios_m, 1, 2048, f);
\r
1388 f = fopen("32X_S_BIOS.BIN", "rb");
\r
1389 p32x_bios_s = malloc(1024);
\r
1390 fread(p32x_bios_s, 1, 1024, f);
\r
1394 /* make dirs for saves */
\r
1395 pos = plat_get_root_dir(path, sizeof(path) - 4);
\r
1396 mkdir_path(path, pos, "mds");
\r
1397 mkdir_path(path, pos, "srm");
\r
1398 mkdir_path(path, pos, "brm");
\r
1402 make_config_cfg(path);
\r
1403 config_readlrom(path);
\r
1406 PicoMessage = plat_status_msg_busy_next;
\r
1407 PicoMCDopenTray = emu_tray_open;
\r
1408 PicoMCDcloseTray = emu_tray_close;
\r
1411 void emu_finish(void)
\r
1414 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1415 emu_save_load_game(0, 1);
\r
1419 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {
\r
1421 make_config_cfg(cfg);
\r
1422 config_writelrom(cfg);
\r
1433 static void skip_frame(int do_audio)
\r
1435 PicoSkipFrame = do_audio ? 1 : 2;
\r
1437 PicoSkipFrame = 0;
\r
1440 /* our tick here is 1 us right now */
\r
1441 #define ms_to_ticks(x) (unsigned int)(x * 1000)
\r
1442 #define get_ticks() plat_get_ticks_us()
\r
1444 void emu_loop(void)
\r
1446 int pframes_done; /* "period" frames, used for sync */
\r
1447 int frames_done, frames_shown; /* actual frames for fps counter */
\r
1448 int target_fps, target_frametime;
\r
1449 unsigned int timestamp_base = 0, timestamp_fps;
\r
1450 char *notice_msg = NULL;
\r
1456 /* make sure we are in correct mode */
\r
1457 Pico.m.dirtyPal = 1;
\r
1458 rendstatus_old = -1;
\r
1460 PicoLoopPrepare();
\r
1462 // prepare CD buffer
\r
1463 if (PicoAHW & PAHW_MCD)
\r
1464 PicoCDBufferInit();
\r
1468 /* number of ticks per frame */
\r
1471 target_frametime = ms_to_ticks(1000) / 50;
\r
1474 target_frametime = ms_to_ticks(1000) / 60 + 1;
\r
1477 timestamp_fps = get_ticks();
\r
1480 frames_done = frames_shown = pframes_done = 0;
\r
1482 plat_video_wait_vsync();
\r
1484 /* loop with resync every 1 sec. */
\r
1485 while (engineState == PGS_Running)
\r
1487 unsigned int timestamp;
\r
1488 int diff, diff_lim;
\r
1490 pprof_start(main);
\r
1492 timestamp = get_ticks();
\r
1493 if (reset_timing) {
\r
1495 timestamp_base = timestamp;
\r
1499 // show notice_msg message?
\r
1500 if (notice_msg_time != 0)
\r
1502 static int noticeMsgSum;
\r
1503 if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {
\r
1504 notice_msg_time = 0;
\r
1505 plat_status_msg_clear();
\r
1506 notice_msg = NULL;
\r
1508 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];
\r
1509 if (sum != noticeMsgSum) {
\r
1510 plat_status_msg_clear();
\r
1511 noticeMsgSum = sum;
\r
1513 notice_msg = noticeMsg;
\r
1517 // second changed?
\r
1518 if (timestamp - timestamp_fps >= ms_to_ticks(1000))
\r
1521 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
1522 if (++bench == 10) {
\r
1524 bench_fps_s = bench_fps;
\r
1525 bf[bfp++ & 3] = bench_fps;
\r
1528 bench_fps += frames_shown;
\r
1529 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
1530 printf("%s\n", fpsbuff);
\r
1532 if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {
\r
1533 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
1534 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
1537 frames_shown = frames_done = 0;
\r
1538 timestamp_fps += ms_to_ticks(1000);
\r
1541 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
1544 if (timestamp - timestamp_base >= ms_to_ticks(1000))
\r
1546 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)
\r
1549 pframes_done -= target_fps;
\r
1550 if (pframes_done < -2) {
\r
1551 /* don't drag more than 2 frames behind */
\r
1552 pframes_done = -2;
\r
1553 timestamp_base = timestamp - 2 * target_frametime;
\r
1556 timestamp_base += ms_to_ticks(1000);
\r
1559 diff = timestamp - timestamp_base;
\r
1560 diff_lim = (pframes_done + 1) * target_frametime;
\r
1562 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
1564 for (i = 0; i < currentConfig.Frameskip; i++) {
\r
1565 emu_update_input();
\r
1567 pframes_done++; frames_done++;
\r
1568 diff_lim += target_frametime;
\r
1570 if (!(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT))) {
\r
1571 timestamp = get_ticks();
\r
1572 diff = timestamp - timestamp_base;
\r
1573 if (!reset_timing && diff < diff_lim) // we are too fast
\r
1574 plat_wait_till_us(timestamp_base + diff_lim);
\r
1578 else if (diff > diff_lim)
\r
1580 /* no time left for this frame - skip */
\r
1581 /* limit auto frameskip to 8 */
\r
1582 if (frames_done / 8 <= frames_shown) {
\r
1583 emu_update_input();
\r
1584 skip_frame(diff < diff_lim + target_frametime * 16);
\r
1585 pframes_done++; frames_done++;
\r
1590 emu_update_input();
\r
1592 pemu_finalize_frame(fpsbuff, notice_msg);
\r
1594 // plat_video_flip();
\r
1596 /* frame limiter */
\r
1597 if (!reset_timing && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT)))
\r
1599 timestamp = get_ticks();
\r
1600 diff = timestamp - timestamp_base;
\r
1602 // sleep or vsync if we are still too fast
\r
1603 if (diff < diff_lim)
\r
1605 // we are too fast
\r
1606 plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);
\r
1607 if (currentConfig.EmuOpt & EOPT_VSYNC)
\r
1608 plat_video_wait_vsync();
\r
1612 // XXX: for some plats it might be better to flip before vsync
\r
1613 // (due to shadow registers in display hw)
\r
1614 plat_video_flip();
\r
1616 pframes_done++; frames_done++; frames_shown++;
\r
1621 emu_set_fastforward(0);
\r
1624 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1625 plat_status_msg_busy_first("Writing SRAM/BRAM...");
\r
1626 emu_save_load_game(0, 1);
\r
1632 // pemu_loop_end() might want to do 1 frame for bg image,
\r
1633 // so free CD buffer here
\r
1634 if (PicoAHW & PAHW_MCD)
\r
1635 PicoCDBufferFree();
\r