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 * if so, checks for suitable BIOS */
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179 static int emu_cd_check(int *pregion, const char *fname_in)
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181 const char *fname = fname_in;
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182 unsigned char buf[32];
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184 int region = 4; // 1: Japan, 4: US, 8: Europe
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186 cue_track_type type = CT_UNKNOWN;
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187 cue_data_t *cue_data = NULL;
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189 get_ext(fname_in, ext);
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190 if (strcasecmp(ext, ".cue") == 0) {
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191 cue_data = cue_parse(fname_in);
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192 if (cue_data != NULL) {
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193 fname = cue_data->tracks[1].fname;
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194 type = cue_data->tracks[1].type;
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200 cd_f = pm_open(fname);
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201 if (cue_data != NULL)
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202 cue_destroy(cue_data);
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204 if (cd_f == NULL) return 0; // let the upper level handle this
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206 if (pm_read(buf, 32, cd_f) != 32) {
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211 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {
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212 if (type && type != CT_ISO)
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213 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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214 type = CT_ISO; // Sega CD (ISO)
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216 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {
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217 if (type && type != CT_BIN)
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218 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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219 type = CT_BIN; // Sega CD (BIN)
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222 if (type == CT_UNKNOWN) {
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227 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);
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228 pm_read(id_header, sizeof(id_header), cd_f);
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230 /* it seems we have a CD image here. Try to detect region now.. */
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231 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
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232 pm_read(buf, 1, cd_f);
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235 if (buf[0] == 0x64) region = 8; // EU
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236 if (buf[0] == 0xa1) region = 1; // JAP
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238 lprintf("detected %s Sega/Mega CD image with %s region\n",
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239 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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241 if (pregion != NULL) *pregion = region;
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246 static int extract_text(char *dest, const unsigned char *src, int len, int swab)
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251 if (swab) swab = 1;
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253 for (i = len - 1; i >= 0; i--)
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255 if (src[i^swab] != ' ') break;
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259 for (i = 0; i < len; i++)
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261 unsigned char s = src[i^swab];
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262 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&
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263 s != '[' && s != ']' && s != '\\')
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269 sprintf(p, "\\%02x", s);
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277 static char *emu_make_rom_id(void)
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279 static char id_string[3+0xe*3+0x3*3+0x30*3+3];
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282 if (PicoAHW & PAHW_MCD) {
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283 strcpy(id_string, "CD|");
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286 else strcpy(id_string, "MD|");
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289 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial
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290 id_string[pos] = '|'; pos++;
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291 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region
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292 id_string[pos] = '|'; pos++;
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293 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name
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294 id_string[pos] = 0;
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299 // buffer must be at least 150 byte long
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300 void emu_get_game_name(char *str150)
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302 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;
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305 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name
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307 for (s = d = str150 + 1; s < str150+ret; s++)
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309 if (*s == 0) break;
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310 if (*s != ' ' || d[-1] != ' ')
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316 static void shutdown_MCD(void)
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318 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)
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320 PicoAHW &= ~PAHW_MCD;
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323 // note: this function might mangle rom_fname
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324 int emu_reload_rom(char *rom_fname)
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326 unsigned int rom_size = 0;
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327 char *used_rom_name = rom_fname;
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328 unsigned char *rom_data = NULL;
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330 pm_file *rom = NULL;
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331 int ret, cd_state, cd_region, cfg_loaded = 0;
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333 lprintf("emu_ReloadRom(%s)\n", rom_fname);
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335 get_ext(rom_fname, ext);
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337 // detect wrong extensions
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338 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz
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339 me_update_msg("Not a ROM/CD selected.");
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345 // check for movie file
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350 if (!strcmp(ext, ".gmv"))
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352 // check for both gmv and rom
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354 FILE *movie_file = fopen(rom_fname, "rb");
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356 me_update_msg("Failed to open movie.");
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359 fseek(movie_file, 0, SEEK_END);
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360 movie_size = ftell(movie_file);
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361 fseek(movie_file, 0, SEEK_SET);
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362 if(movie_size < 64+3) {
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363 me_update_msg("Invalid GMV file.");
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364 fclose(movie_file);
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367 movie_data = malloc(movie_size);
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368 if(movie_data == NULL) {
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369 me_update_msg("low memory.");
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370 fclose(movie_file);
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373 fread(movie_data, 1, movie_size, movie_file);
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374 fclose(movie_file);
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375 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
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376 me_update_msg("Invalid GMV file.");
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379 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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381 me_update_msg("Could't find a ROM for movie.");
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384 get_ext(rom_fname, ext);
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385 lprintf("gmv loaded for %s\n", rom_fname);
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387 else if (!strcmp(ext, ".pat"))
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390 PicoPatchLoad(rom_fname);
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391 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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393 me_update_msg("Could't find a ROM to patch.");
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396 get_ext(rom_fname, ext);
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401 // check for MegaCD image
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402 cd_state = emu_cd_check(&cd_region, rom_fname);
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403 if (cd_state >= 0 && cd_state != CIT_NOT_CD)
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405 PicoAHW |= PAHW_MCD;
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406 // valid CD image, check for BIOS..
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408 // we need to have config loaded at this point
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409 ret = emu_read_config(1, 0);
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410 if (!ret) emu_read_config(0, 0);
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413 if (PicoRegionOverride) {
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414 cd_region = PicoRegionOverride;
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415 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");
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417 if (!find_bios(cd_region, &used_rom_name)) {
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418 PicoAHW &= ~PAHW_MCD;
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422 get_ext(used_rom_name, ext);
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426 if (PicoAHW & PAHW_MCD) Stop_CD();
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427 PicoAHW &= ~PAHW_MCD;
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430 rom = pm_open(used_rom_name);
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432 me_update_msg("Failed to open ROM/CD image");
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436 if (cd_state < 0) {
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437 me_update_msg("Invalid CD image");
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441 menu_romload_prepare(used_rom_name); // also CD load
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446 if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
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447 if (ret == 2) me_update_msg("Out of memory");
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448 else if (ret == 3) me_update_msg("Read failed");
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449 else me_update_msg("PicoCartLoad() failed.");
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455 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good
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456 if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
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457 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {
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458 if (rom_data) free(rom_data);
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459 me_update_msg("Not a ROM selected.");
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463 // load config for this ROM (do this before insert to get correct region)
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464 if (!(PicoAHW & PAHW_MCD))
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465 memcpy(id_header, rom_data + 0x100, sizeof(id_header));
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467 ret = emu_read_config(1, 0);
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468 if (!ret) emu_read_config(0, 0);
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471 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
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472 if (PicoCartInsert(rom_data, rom_size)) {
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473 me_update_msg("Failed to load ROM.");
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477 // insert CD if it was detected
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478 if (cd_state != CIT_NOT_CD) {
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479 ret = Insert_CD(rom_fname, cd_state);
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481 me_update_msg("Insert_CD() failed, invalid CD image?");
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486 menu_romload_end();
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489 PicoPatchPrepare();
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493 // additional movie stuff
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496 if (movie_data[0x14] == '6')
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497 PicoOpt |= POPT_6BTN_PAD; // 6 button pad
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498 else PicoOpt &= ~POPT_6BTN_PAD;
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499 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing
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500 if (movie_data[0xF] >= 'A') {
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501 if (movie_data[0x16] & 0x80) {
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502 PicoRegionOverride = 8;
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504 PicoRegionOverride = 4;
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507 // TODO: bits 6 & 5
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509 movie_data[0x18+30] = 0;
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510 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);
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514 PicoOpt &= ~POPT_DIS_VDP_FIFO;
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515 emu_status_msg(Pico.m.pal ? "PAL SYSTEM / 50 FPS" : "NTSC SYSTEM / 60 FPS");
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518 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);
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519 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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522 // load SRAM for this ROM
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523 if (currentConfig.EmuOpt & EOPT_EN_SRAM)
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524 emu_save_load_game(1, 1);
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529 menu_romload_end();
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531 if (rom != NULL) pm_close(rom);
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535 int emu_swap_cd(const char *fname)
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537 cd_img_type cd_type;
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540 cd_type = emu_cd_check(NULL, fname);
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541 if (cd_type != CIT_NOT_CD)
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542 ret = Insert_CD(fname, cd_type);
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544 me_update_msg("Load failed, invalid CD image?");
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548 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);
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549 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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553 static void romfname_ext(char *dst, const char *prefix, const char *ext)
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556 int prefix_len = 0;
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558 // make save filename
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559 p = rom_fname_loaded + strlen(rom_fname_loaded) - 1;
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560 for (; p >= rom_fname_loaded && *p != PATH_SEP_C; p--); p++;
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563 int len = plat_get_root_dir(dst, 512);
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564 strcpy(dst + len, prefix);
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565 prefix_len = len + strlen(prefix);
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568 else p = rom_fname_loaded; // backward compatibility
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570 strncpy(dst + prefix_len, p, 511-prefix_len);
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572 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;
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573 if (ext) strcat(dst, ext);
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576 void emu_make_path(char *buff, const char *end, int size)
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580 end_len = strlen(end);
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581 pos = plat_get_root_dir(buff, size);
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582 strncpy(buff + pos, end, size - pos);
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583 buff[size - 1] = 0;
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584 if (pos + end_len > size - 1)
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585 lprintf("Warning: path truncated: %s\n", buff);
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588 static void make_config_cfg(char *cfg_buff_512)
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590 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);
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591 if (config_slot != 0)
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593 char *p = strrchr(cfg_buff_512, '.');
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595 p = cfg_buff_512 + strlen(cfg_buff_512);
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596 sprintf(p, ".%i.cfg", config_slot);
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598 cfg_buff_512[511] = 0;
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601 void emu_set_defconfig(void)
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603 memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
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604 PicoOpt = currentConfig.s_PicoOpt;
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605 PsndRate = currentConfig.s_PsndRate;
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606 PicoRegionOverride = currentConfig.s_PicoRegion;
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607 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
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608 PicoCDBuffers = currentConfig.s_PicoCDBuffers;
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611 int emu_read_config(int game, int no_defaults)
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617 emu_set_defconfig();
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621 make_config_cfg(cfg);
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622 ret = config_readsect(cfg, NULL);
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626 char *sect = emu_make_rom_id();
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628 // try new .cfg way
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629 if (config_slot != 0)
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630 sprintf(cfg, "game.%i.cfg", config_slot);
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631 else strcpy(cfg, "game.cfg");
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634 if (config_havesect(cfg, sect))
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636 // read user's config
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637 int vol = currentConfig.volume;
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638 emu_set_defconfig();
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639 ret = config_readsect(cfg, sect);
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640 currentConfig.volume = vol; // make vol global (bah)
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644 // read global config, and apply game_def.cfg on top
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645 make_config_cfg(cfg);
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646 config_readsect(cfg, NULL);
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647 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));
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648 ret = config_readsect(cfg, sect);
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653 lprintf("loaded cfg from sect \"%s\"\n", sect);
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657 plat_validate_config();
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659 // some sanity checks
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661 /* TODO: mv to plat_validate_config() */
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662 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
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663 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;
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664 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;
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666 if (currentConfig.volume < 0 || currentConfig.volume > 99)
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667 currentConfig.volume = 50;
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670 config_slot_current = config_slot;
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676 int emu_write_config(int is_game)
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678 char cfg[512], *game_sect = NULL;
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679 int ret, write_lrom = 0;
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683 make_config_cfg(cfg);
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686 if (config_slot != 0)
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687 sprintf(cfg, "game.%i.cfg", config_slot);
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688 else strcpy(cfg, "game.cfg");
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689 game_sect = emu_make_rom_id();
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690 lprintf("emu_write_config: sect \"%s\"\n", game_sect);
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693 lprintf("emu_write_config: %s ", cfg);
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694 ret = config_writesect(cfg, game_sect);
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695 if (write_lrom) config_writelrom(cfg);
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699 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");
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701 if (ret == 0) config_slot_current = config_slot;
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706 /* always using built-in font */
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708 #define mk_text_out(name, type, val, topleft, step_x, step_y) \
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709 void name(int x, int y, const char *text) \
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711 int i, l, len = strlen(text); \
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712 type *screen = (type *)(topleft) + x * step_x + y * step_y; \
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714 for (i = 0; i < len; i++, screen += 8 * step_x) \
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716 for (l = 0; l < 8; l++) \
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718 unsigned char fd = fontdata8x8[text[i] * 8 + l];\
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719 type *s = screen + l * step_y; \
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720 if (fd&0x80) s[step_x * 0] = val; \
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721 if (fd&0x40) s[step_x * 1] = val; \
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722 if (fd&0x20) s[step_x * 2] = val; \
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723 if (fd&0x10) s[step_x * 3] = val; \
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724 if (fd&0x08) s[step_x * 4] = val; \
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725 if (fd&0x04) s[step_x * 5] = val; \
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726 if (fd&0x02) s[step_x * 6] = val; \
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727 if (fd&0x01) s[step_x * 7] = val; \
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732 mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)
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733 mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)
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734 mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,
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735 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
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736 mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,
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737 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
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742 void update_movie(void)
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744 int offs = Pico.m.frame_count*3 + 0x40;
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745 if (offs+3 > movie_size) {
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748 emu_status_msg("END OF MOVIE.");
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749 lprintf("END OF MOVIE.\n");
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752 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
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753 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C
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754 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A
\r
755 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B
\r
756 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
\r
757 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C
\r
758 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A
\r
759 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B
\r
760 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
\r
761 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
\r
762 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
\r
763 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
\r
764 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
\r
765 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
\r
769 static int try_ropen_file(const char *fname)
\r
773 f = fopen(fname, "rb");
\r
781 char *emu_get_save_fname(int load, int is_sram, int slot)
\r
783 static char saveFname[512];
\r
788 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");
\r
789 romfname_ext(saveFname, (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);
\r
793 if (try_ropen_file(saveFname))
\r
796 romfname_ext(saveFname, NULL, ext);
\r
797 if (try_ropen_file(saveFname))
\r
802 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";
\r
803 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";
\r
805 if (slot > 0 && slot < 10)
\r
806 sprintf(ext, ".%i", slot);
\r
807 strcat(ext, ext_main);
\r
810 romfname_ext(saveFname, "mds" PATH_SEP, ext);
\r
814 romfname_ext(saveFname, "mds" PATH_SEP, ext);
\r
815 if (try_ropen_file(saveFname))
\r
818 romfname_ext(saveFname, NULL, ext);
\r
819 if (try_ropen_file(saveFname))
\r
822 // try the other ext
\r
824 if (slot > 0 && slot < 10)
\r
825 sprintf(ext, ".%i", slot);
\r
826 strcat(ext, ext_othr);
\r
828 romfname_ext(saveFname, "mds"PATH_SEP, ext);
\r
829 if (try_ropen_file(saveFname))
\r
837 int emu_check_save_file(int slot)
\r
839 return emu_get_save_fname(1, 0, slot) ? 1 : 0;
\r
842 int emu_save_load_game(int load, int sram)
\r
847 // make save filename
\r
848 saveFname = emu_get_save_fname(load, sram, state_slot);
\r
849 if (saveFname == NULL) {
\r
851 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");
\r
855 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
\r
861 unsigned char *sram_data;
\r
863 if (PicoAHW & PAHW_MCD)
\r
865 if (PicoOpt&POPT_EN_MCD_RAMCART) {
\r
866 sram_size = 0x12000;
\r
867 sram_data = SRam.data;
\r
869 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);
\r
871 sram_size = 0x2000;
\r
872 sram_data = Pico_mcd->bram;
\r
873 truncate = 0; // the .brm may contain RAM cart data after normal brm
\r
876 sram_size = SRam.end-SRam.start+1;
\r
877 if(Pico.m.sram_reg & 4) sram_size=0x2000;
\r
878 sram_data = SRam.data;
\r
880 if (!sram_data) return 0; // SRam forcefully disabled for this game
\r
884 sramFile = fopen(saveFname, "rb");
\r
885 if(!sramFile) return -1;
\r
886 fread(sram_data, 1, sram_size, sramFile);
\r
888 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))
\r
889 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
\r
891 // sram save needs some special processing
\r
892 // see if we have anything to save
\r
893 for (; sram_size > 0; sram_size--)
\r
894 if (sram_data[sram_size-1]) break;
\r
897 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");
\r
898 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry
\r
899 if (!sramFile) return -1;
\r
900 ret = fwrite(sram_data, 1, sram_size, sramFile);
\r
901 ret = (ret != sram_size) ? -1 : 0;
\r
912 ret = PicoState(saveFname, !load);
\r
917 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");
\r
919 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");
\r
927 void emu_set_fastforward(int set_on)
\r
929 static void *set_PsndOut = NULL;
\r
930 static int set_Frameskip, set_EmuOpt, is_on = 0;
\r
932 if (set_on && !is_on) {
\r
933 set_PsndOut = PsndOut;
\r
934 set_Frameskip = currentConfig.Frameskip;
\r
935 set_EmuOpt = currentConfig.EmuOpt;
\r
937 currentConfig.Frameskip = 8;
\r
938 currentConfig.EmuOpt &= ~4;
\r
939 currentConfig.EmuOpt |= 0x40000;
\r
941 emu_status_msg("FAST FORWARD");
\r
943 else if (!set_on && is_on) {
\r
944 PsndOut = set_PsndOut;
\r
945 currentConfig.Frameskip = set_Frameskip;
\r
946 currentConfig.EmuOpt = set_EmuOpt;
\r
952 static void emu_tray_open(void)
\r
954 engineState = PGS_TrayMenu;
\r
957 static void emu_tray_close(void)
\r
959 emu_status_msg("CD tray closed.");
\r
962 void emu_reset_game(void)
\r
968 void run_events_pico(unsigned int events)
\r
972 if (events & PEV_PICO_SWINP) {
\r
974 if (pico_inp_mode > 2)
\r
976 switch (pico_inp_mode) {
\r
977 case 2: emu_status_msg("Input: Pen on Pad"); break;
\r
978 case 1: emu_status_msg("Input: Pen on Storyware"); break;
\r
979 case 0: emu_status_msg("Input: Joystick");
\r
980 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
\r
984 if (events & PEV_PICO_PPREV) {
\r
986 if (PicoPicohw.page < 0)
\r
987 PicoPicohw.page = 0;
\r
988 emu_status_msg("Page %i", PicoPicohw.page);
\r
990 if (events & PEV_PICO_PNEXT) {
\r
992 if (PicoPicohw.page > 6)
\r
993 PicoPicohw.page = 6;
\r
994 emu_status_msg("Page %i", PicoPicohw.page);
\r
997 if (pico_inp_mode == 0)
\r
1000 /* handle other input modes */
\r
1001 if (PicoPad[0] & 1) pico_pen_y--;
\r
1002 if (PicoPad[0] & 2) pico_pen_y++;
\r
1003 if (PicoPad[0] & 4) pico_pen_x--;
\r
1004 if (PicoPad[0] & 8) pico_pen_x++;
\r
1005 PicoPad[0] &= ~0x0f; // release UDLR
\r
1007 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
\r
1008 if (pico_pen_y < 8)
\r
1010 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)
\r
1011 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;
\r
1012 if (pico_pen_x < 0)
\r
1014 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)
\r
1015 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;
\r
1017 PicoPicohw.pen_pos[0] = pico_pen_x;
\r
1018 if (!(Pico.video.reg[12] & 1))
\r
1019 PicoPicohw.pen_pos[0] += pico_pen_x / 4;
\r
1020 PicoPicohw.pen_pos[0] += 0x3c;
\r
1021 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
\r
1024 static void do_turbo(int *pad, int acts)
\r
1026 static int turbo_pad = 0;
\r
1027 static unsigned char turbo_cnt[3] = { 0, 0, 0 };
\r
1028 int inc = currentConfig.turbo_rate * 2;
\r
1030 if (acts & 0x1000) {
\r
1031 turbo_cnt[0] += inc;
\r
1032 if (turbo_cnt[0] >= 60)
\r
1033 turbo_pad ^= 0x10, turbo_cnt[0] = 0;
\r
1035 if (acts & 0x2000) {
\r
1036 turbo_cnt[1] += inc;
\r
1037 if (turbo_cnt[1] >= 60)
\r
1038 turbo_pad ^= 0x20, turbo_cnt[1] = 0;
\r
1040 if (acts & 0x4000) {
\r
1041 turbo_cnt[2] += inc;
\r
1042 if (turbo_cnt[2] >= 60)
\r
1043 turbo_pad ^= 0x40, turbo_cnt[2] = 0;
\r
1045 *pad |= turbo_pad & (acts >> 8);
\r
1048 static void run_events_ui(unsigned int which)
\r
1050 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))
\r
1053 if ( emu_check_save_file(state_slot) &&
\r
1054 (((which & PEV_STATE_LOAD) && (currentConfig.EmuOpt & EOPT_CONFIRM_LOAD)) ||
\r
1055 ((which & PEV_STATE_SAVE) && (currentConfig.EmuOpt & EOPT_CONFIRM_SAVE))) )
\r
1061 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");
\r
1062 len = strlen(tmp);
\r
1063 nm = in_get_key_name(-1, -PBTN_MA3);
\r
1064 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);
\r
1065 len = strlen(tmp);
\r
1066 nm = in_get_key_name(-1, -PBTN_MBACK);
\r
1067 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);
\r
1069 plat_status_msg_busy_first(tmp);
\r
1071 in_set_blocking(1);
\r
1072 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))
\r
1074 while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )
\r
1076 if (keys & PBTN_MBACK)
\r
1078 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))
\r
1080 in_set_blocking(0);
\r
1083 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");
\r
1084 PicoStateProgressCB = plat_status_msg_busy_next;
\r
1085 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);
\r
1086 PicoStateProgressCB = NULL;
\r
1089 if (which & PEV_SWITCH_RND)
\r
1091 plat_video_toggle_renderer(1, 0);
\r
1093 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))
\r
1095 if (which & PEV_SSLOT_PREV) {
\r
1097 if (state_slot < 0)
\r
1101 if (state_slot > 9)
\r
1105 emu_status_msg("SAVE SLOT %i [%s]", state_slot,
\r
1106 emu_check_save_file(state_slot) ? "USED" : "FREE");
\r
1108 if (which & PEV_MENU)
\r
1109 engineState = PGS_Menu;
\r
1112 void emu_update_input(void)
\r
1114 static int prev_events = 0;
\r
1115 int actions[IN_BINDTYPE_COUNT] = { 0, };
\r
1116 int pl_actions[2];
\r
1119 in_update(actions);
\r
1121 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];
\r
1122 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;
\r
1124 PicoPad[0] = pl_actions[0] & 0xfff;
\r
1125 PicoPad[1] = pl_actions[1] & 0xfff;
\r
1127 if (pl_actions[0] & 0x7000)
\r
1128 do_turbo(&PicoPad[0], pl_actions[0]);
\r
1129 if (pl_actions[1] & 0x7000)
\r
1130 do_turbo(&PicoPad[1], pl_actions[1]);
\r
1132 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1134 // volume is treated in special way and triggered every frame
\r
1135 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))
\r
1136 plat_update_volume(1, events & PEV_VOL_UP);
\r
1138 if ((events ^ prev_events) & PEV_FF) {
\r
1139 emu_set_fastforward(events & PEV_FF);
\r
1140 plat_update_volume(0, 0);
\r
1144 events &= ~prev_events;
\r
1146 if (PicoAHW == PAHW_PICO)
\r
1147 run_events_pico(events);
\r
1149 run_events_ui(events);
\r
1153 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1156 static void mkdir_path(char *path_with_reserve, int pos, const char *name)
\r
1158 strcpy(path_with_reserve + pos, name);
\r
1159 if (plat_is_dir(path_with_reserve))
\r
1161 if (mkdir(path_with_reserve, 0777) < 0)
\r
1162 lprintf("failed to create: %s\n", path_with_reserve);
\r
1165 void emu_init(void)
\r
1170 /* make dirs for saves */
\r
1171 pos = plat_get_root_dir(path, sizeof(path) - 4);
\r
1172 mkdir_path(path, pos, "mds");
\r
1173 mkdir_path(path, pos, "srm");
\r
1174 mkdir_path(path, pos, "brm");
\r
1176 make_config_cfg(path);
\r
1177 config_readlrom(path);
\r
1180 PicoMessage = plat_status_msg_busy_next;
\r
1181 PicoMCDopenTray = emu_tray_open;
\r
1182 PicoMCDcloseTray = emu_tray_close;
\r
1185 void emu_finish(void)
\r
1188 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1189 emu_save_load_game(0, 1);
\r
1193 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {
\r
1195 make_config_cfg(cfg);
\r
1196 config_writelrom(cfg);
\r
1205 static void skip_frame(int do_audio)
\r
1207 PicoSkipFrame = do_audio ? 1 : 2;
\r
1209 PicoSkipFrame = 0;
\r
1212 /* our tick here is 1 us right now */
\r
1213 #define ms_to_ticks(x) (unsigned int)(x * 1000)
\r
1214 #define get_ticks() plat_get_ticks_us()
\r
1216 void emu_loop(void)
\r
1218 int pframes_done; /* "period" frames, used for sync */
\r
1219 int frames_done, frames_shown; /* actual frames for fps counter */
\r
1220 int oldmodes, target_fps, target_frametime;
\r
1221 unsigned int timestamp_base = 0, timestamp_fps;
\r
1222 char *notice_msg = NULL;
\r
1228 /* make sure we are in correct mode */
\r
1229 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
1230 Pico.m.dirtyPal = 1;
\r
1232 /* number of ticks per frame */
\r
1235 target_frametime = ms_to_ticks(1000) / 50;
\r
1238 target_frametime = ms_to_ticks(1000) / 60 + 1;
\r
1241 // prepare CD buffer
\r
1242 if (PicoAHW & PAHW_MCD)
\r
1243 PicoCDBufferInit();
\r
1247 timestamp_fps = get_ticks();
\r
1250 frames_done = frames_shown = pframes_done = 0;
\r
1252 plat_video_wait_vsync();
\r
1254 /* loop with resync every 1 sec. */
\r
1255 while (engineState == PGS_Running)
\r
1257 unsigned int timestamp;
\r
1258 int diff, diff_lim;
\r
1261 timestamp = get_ticks();
\r
1262 if (reset_timing) {
\r
1264 timestamp_base = timestamp;
\r
1268 // show notice_msg message?
\r
1269 if (notice_msg_time != 0)
\r
1271 static int noticeMsgSum;
\r
1272 if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {
\r
1273 notice_msg_time = 0;
\r
1274 plat_status_msg_clear();
\r
1275 notice_msg = NULL;
\r
1277 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];
\r
1278 if (sum != noticeMsgSum) {
\r
1279 plat_status_msg_clear();
\r
1280 noticeMsgSum = sum;
\r
1282 notice_msg = noticeMsg;
\r
1286 // check for mode changes
\r
1287 modes = ((Pico.video.reg[12]&1)<<2) | (Pico.video.reg[1]&8);
\r
1288 if (modes != oldmodes) {
\r
1290 pemu_video_mode_change(!(modes & 4), (modes & 8));
\r
1293 // second changed?
\r
1294 if (timestamp - timestamp_fps >= ms_to_ticks(1000))
\r
1297 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
1298 if (++bench == 10) {
\r
1300 bench_fps_s = bench_fps;
\r
1301 bf[bfp++ & 3] = bench_fps;
\r
1304 bench_fps += frames_shown;
\r
1305 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
1307 if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {
\r
1308 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
1309 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
1312 frames_shown = frames_done = 0;
\r
1313 timestamp_fps += ms_to_ticks(1000);
\r
1316 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
1319 if (timestamp - timestamp_base >= ms_to_ticks(1000))
\r
1321 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)
\r
1324 pframes_done -= target_fps;
\r
1325 /* don't allow it to drift during heavy slowdowns */
\r
1326 if (pframes_done < -5) {
\r
1330 if (pframes_done < -2)
\r
1331 pframes_done = -2;
\r
1333 timestamp_base += ms_to_ticks(1000);
\r
1336 diff = timestamp - timestamp_base;
\r
1337 diff_lim = (pframes_done + 1) * target_frametime;
\r
1339 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
1341 for (i = 0; i < currentConfig.Frameskip; i++) {
\r
1342 emu_update_input();
\r
1344 pframes_done++; frames_done++;
\r
1345 diff_lim += target_frametime;
\r
1347 if (!(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) {
\r
1348 timestamp = get_ticks();
\r
1349 diff = timestamp - timestamp_base;
\r
1350 if (!reset_timing && diff < diff_lim) // we are too fast
\r
1351 plat_wait_till_us(timestamp_base + diff_lim);
\r
1355 else if (diff > diff_lim)
\r
1357 /* no time left for this frame - skip */
\r
1358 if (diff - diff_lim >= ms_to_ticks(200)) {
\r
1359 /* if too much behind, reset instead */
\r
1363 emu_update_input();
\r
1364 skip_frame(diff < diff_lim + target_frametime * 2);
\r
1365 pframes_done++; frames_done++;
\r
1369 emu_update_input();
\r
1372 /* frame limiter */
\r
1373 if (!reset_timing && !(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT))
\r
1375 timestamp = get_ticks();
\r
1376 diff = timestamp - timestamp_base;
\r
1378 // sleep or vsync if we are still too fast
\r
1379 if (diff < diff_lim)
\r
1381 // we are too fast
\r
1382 plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);
\r
1383 if (currentConfig.EmuOpt & EOPT_VSYNC)
\r
1384 plat_video_wait_vsync();
\r
1388 pemu_update_display(fpsbuff, notice_msg);
\r
1390 pframes_done++; frames_done++; frames_shown++;
\r
1393 emu_set_fastforward(0);
\r
1396 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1397 plat_status_msg_busy_first("Writing SRAM/BRAM...");
\r
1398 emu_save_load_game(0, 1);
\r
1404 // pemu_loop_end() might want to do 1 frame for bg image,
\r
1405 // so free CD buffer here
\r
1406 if (PicoAHW & PAHW_MCD)
\r
1407 PicoCDBufferFree();
\r