1 // (c) Copyright 2006-2007 notaz, All rights reserved.
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2 // Free for non-commercial use.
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4 // For commercial use, separate licencing terms must be obtained.
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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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25 #include <zlib/zlib.h>
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30 #if !SCREEN_SIZE_FIXED
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31 int g_screen_width = SCREEN_WIDTH;
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32 int g_screen_height = SCREEN_HEIGHT;
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35 char *PicoConfigFile = "config.cfg";
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36 currentConfig_t currentConfig, defaultConfig;
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38 int config_slot = 0, config_slot_current = 0;
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39 int pico_pen_x = 320/2, pico_pen_y = 240/2;
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40 int pico_inp_mode = 0;
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41 int engineState = PGS_Menu;
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43 /* TODO: len checking */
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44 char rom_fname_reload[512] = { 0, };
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45 char rom_fname_loaded[512] = { 0, };
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47 int reset_timing = 0;
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48 static unsigned int notice_msg_time; /* when started showing */
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49 static char noticeMsg[40];
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51 unsigned char *movie_data = NULL;
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52 static int movie_size = 0;
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55 /* don't use tolower() for easy old glibc binary compatibility */
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56 static void strlwr_(char *string)
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59 for (p = string; *p; p++)
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60 if ('A' <= *p && *p <= 'Z')
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64 static int try_rfn_cut(char *fname)
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69 p = fname + strlen(fname) - 1;
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70 for (; p > fname; p--)
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71 if (*p == '.') break;
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74 if((tmp = fopen(fname, "rb"))) {
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81 static void get_ext(char *file, char *ext)
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85 p = file + strlen(file) - 4;
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86 if (p < file) p = file;
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92 void emu_status_msg(const char *format, ...)
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96 va_start(vl, format);
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97 vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);
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100 notice_msg_time = plat_get_ticks_ms();
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103 static const char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };
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104 static const char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };
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105 static const char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
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107 static int find_bios(int region, char **bios_file)
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109 static char bios_path[1024];
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111 const char **files;
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114 if (region == 4) { // US
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115 files = biosfiles_us;
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116 count = sizeof(biosfiles_us) / sizeof(char *);
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117 } else if (region == 8) { // EU
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118 files = biosfiles_eu;
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119 count = sizeof(biosfiles_eu) / sizeof(char *);
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120 } else if (region == 1 || region == 2) {
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121 files = biosfiles_jp;
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122 count = sizeof(biosfiles_jp) / sizeof(char *);
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127 for (i = 0; i < count; i++)
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129 emu_make_path(bios_path, files[i], sizeof(bios_path) - 4);
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130 strcat(bios_path, ".bin");
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131 f = fopen(bios_path, "rb");
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134 bios_path[strlen(bios_path) - 4] = 0;
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135 strcat(bios_path, ".zip");
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136 f = fopen(bios_path, "rb");
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141 lprintf("using bios: %s\n", bios_path);
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143 if (bios_file) *bios_file = bios_path;
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146 sprintf(bios_path, "no %s BIOS files found, read docs",
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147 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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148 me_update_msg(bios_path);
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153 /* check if the name begins with BIOS name */
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155 static int emu_isBios(const char *name)
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158 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)
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159 if (strstr(name, biosfiles_us[i]) != NULL) return 1;
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160 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)
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161 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;
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162 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)
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163 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;
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168 static unsigned char id_header[0x100];
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170 /* checks if fname points to valid MegaCD image
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171 * if so, checks for suitable BIOS */
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172 int emu_cd_check(int *pregion, char *fname_in)
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174 unsigned char buf[32];
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176 int region = 4; // 1: Japan, 4: US, 8: Europe
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177 char ext[5], *fname = fname_in;
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178 cue_track_type type = CT_UNKNOWN;
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179 cue_data_t *cue_data = NULL;
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181 get_ext(fname_in, ext);
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182 if (strcasecmp(ext, ".cue") == 0) {
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183 cue_data = cue_parse(fname_in);
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184 if (cue_data != NULL) {
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185 fname = cue_data->tracks[1].fname;
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186 type = cue_data->tracks[1].type;
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192 cd_f = pm_open(fname);
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193 if (cue_data != NULL)
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194 cue_destroy(cue_data);
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196 if (cd_f == NULL) return 0; // let the upper level handle this
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198 if (pm_read(buf, 32, cd_f) != 32) {
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203 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {
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204 if (type && type != CT_ISO)
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205 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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206 type = CT_ISO; // Sega CD (ISO)
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208 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {
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209 if (type && type != CT_BIN)
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210 elprintf(EL_STATUS, ".cue has wrong type: %i", type);
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211 type = CT_BIN; // Sega CD (BIN)
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214 if (type == CT_UNKNOWN) {
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219 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);
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220 pm_read(id_header, sizeof(id_header), cd_f);
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222 /* it seems we have a CD image here. Try to detect region now.. */
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223 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
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224 pm_read(buf, 1, cd_f);
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227 if (buf[0] == 0x64) region = 8; // EU
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228 if (buf[0] == 0xa1) region = 1; // JAP
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230 lprintf("detected %s Sega/Mega CD image with %s region\n",
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231 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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233 if (pregion != NULL) *pregion = region;
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238 static int extract_text(char *dest, const unsigned char *src, int len, int swab)
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243 if (swab) swab = 1;
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245 for (i = len - 1; i >= 0; i--)
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247 if (src[i^swab] != ' ') break;
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251 for (i = 0; i < len; i++)
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253 unsigned char s = src[i^swab];
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254 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&
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255 s != '[' && s != ']' && s != '\\')
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261 sprintf(p, "\\%02x", s);
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269 static char *emu_make_rom_id(void)
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271 static char id_string[3+0xe*3+0x3*3+0x30*3+3];
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274 if (PicoAHW & PAHW_MCD) {
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275 strcpy(id_string, "CD|");
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278 else strcpy(id_string, "MD|");
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281 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial
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282 id_string[pos] = '|'; pos++;
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283 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region
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284 id_string[pos] = '|'; pos++;
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285 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name
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286 id_string[pos] = 0;
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291 // buffer must be at least 150 byte long
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292 void emu_get_game_name(char *str150)
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294 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;
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297 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name
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299 for (s = d = str150 + 1; s < str150+ret; s++)
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301 if (*s == 0) break;
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302 if (*s != ' ' || d[-1] != ' ')
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308 static void shutdown_MCD(void)
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310 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)
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312 PicoAHW &= ~PAHW_MCD;
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315 // note: this function might mangle rom_fname
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316 int emu_reload_rom(char *rom_fname)
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318 unsigned int rom_size = 0;
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319 char *used_rom_name = rom_fname;
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320 unsigned char *rom_data = NULL;
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322 pm_file *rom = NULL;
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323 int ret, cd_state, cd_region, cfg_loaded = 0;
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325 lprintf("emu_ReloadRom(%s)\n", rom_fname);
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327 get_ext(rom_fname, ext);
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329 // detect wrong extensions
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330 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz
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331 me_update_msg("Not a ROM/CD selected.");
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337 // check for movie file
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342 if (!strcmp(ext, ".gmv"))
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344 // check for both gmv and rom
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346 FILE *movie_file = fopen(rom_fname, "rb");
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348 me_update_msg("Failed to open movie.");
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351 fseek(movie_file, 0, SEEK_END);
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352 movie_size = ftell(movie_file);
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353 fseek(movie_file, 0, SEEK_SET);
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354 if(movie_size < 64+3) {
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355 me_update_msg("Invalid GMV file.");
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356 fclose(movie_file);
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359 movie_data = malloc(movie_size);
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360 if(movie_data == NULL) {
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361 me_update_msg("low memory.");
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362 fclose(movie_file);
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365 fread(movie_data, 1, movie_size, movie_file);
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366 fclose(movie_file);
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367 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
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368 me_update_msg("Invalid GMV file.");
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371 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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373 me_update_msg("Could't find a ROM for movie.");
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376 get_ext(rom_fname, ext);
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377 lprintf("gmv loaded for %s\n", rom_fname);
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379 else if (!strcmp(ext, ".pat"))
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382 PicoPatchLoad(rom_fname);
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383 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
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385 me_update_msg("Could't find a ROM to patch.");
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388 get_ext(rom_fname, ext);
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393 // check for MegaCD image
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394 cd_state = emu_cd_check(&cd_region, rom_fname);
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395 if (cd_state >= 0 && cd_state != CIT_NOT_CD)
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397 PicoAHW |= PAHW_MCD;
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398 // valid CD image, check for BIOS..
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400 // we need to have config loaded at this point
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401 ret = emu_read_config(1, 1);
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402 if (!ret) emu_read_config(0, 1);
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405 if (PicoRegionOverride) {
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406 cd_region = PicoRegionOverride;
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407 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");
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409 if (!find_bios(cd_region, &used_rom_name)) {
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410 PicoAHW &= ~PAHW_MCD;
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414 get_ext(used_rom_name, ext);
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418 if (PicoAHW & PAHW_MCD) Stop_CD();
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419 PicoAHW &= ~PAHW_MCD;
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422 rom = pm_open(used_rom_name);
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424 me_update_msg("Failed to open ROM/CD image");
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428 if (cd_state < 0) {
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429 me_update_msg("Invalid CD image");
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433 menu_romload_prepare(used_rom_name); // also CD load
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438 if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
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439 if (ret == 2) me_update_msg("Out of memory");
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440 else if (ret == 3) me_update_msg("Read failed");
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441 else me_update_msg("PicoCartLoad() failed.");
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447 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good
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448 if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
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449 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {
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450 if (rom_data) free(rom_data);
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451 me_update_msg("Not a ROM selected.");
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455 // load config for this ROM (do this before insert to get correct region)
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456 if (!(PicoAHW & PAHW_MCD))
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457 memcpy(id_header, rom_data + 0x100, sizeof(id_header));
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459 ret = emu_read_config(1, 1);
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460 if (!ret) emu_read_config(0, 1);
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463 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
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464 if (PicoCartInsert(rom_data, rom_size)) {
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465 me_update_msg("Failed to load ROM.");
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469 // insert CD if it was detected
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470 if (cd_state != CIT_NOT_CD) {
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471 ret = Insert_CD(rom_fname, cd_state);
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473 me_update_msg("Insert_CD() failed, invalid CD image?");
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478 menu_romload_end();
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481 PicoPatchPrepare();
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485 // additional movie stuff
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488 if (movie_data[0x14] == '6')
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489 PicoOpt |= POPT_6BTN_PAD; // 6 button pad
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490 else PicoOpt &= ~POPT_6BTN_PAD;
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491 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing
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492 if (movie_data[0xF] >= 'A') {
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493 if (movie_data[0x16] & 0x80) {
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494 PicoRegionOverride = 8;
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496 PicoRegionOverride = 4;
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499 // TODO: bits 6 & 5
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501 movie_data[0x18+30] = 0;
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502 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);
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506 PicoOpt &= ~POPT_DIS_VDP_FIFO;
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507 emu_status_msg(Pico.m.pal ? "PAL SYSTEM / 50 FPS" : "NTSC SYSTEM / 60 FPS");
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510 // load SRAM for this ROM
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511 if (currentConfig.EmuOpt & EOPT_EN_SRAM)
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512 emu_save_load_game(1, 1);
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514 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);
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515 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
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520 menu_romload_end();
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522 if (rom != NULL) pm_close(rom);
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526 static void romfname_ext(char *dst, const char *prefix, const char *ext)
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529 int prefix_len = 0;
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531 // make save filename
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532 p = rom_fname_loaded + strlen(rom_fname_loaded) - 1;
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533 for (; p >= rom_fname_loaded && *p != PATH_SEP_C; p--); p++;
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536 int len = plat_get_root_dir(dst, 512);
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537 strcpy(dst + len, prefix);
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538 prefix_len = len + strlen(prefix);
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541 else p = rom_fname_loaded; // backward compatibility
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543 strncpy(dst + prefix_len, p, 511-prefix_len);
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545 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;
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546 if (ext) strcat(dst, ext);
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549 void emu_make_path(char *buff, const char *end, int size)
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553 end_len = strlen(end);
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554 pos = plat_get_root_dir(buff, size);
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555 strncpy(buff + pos, end, size - pos);
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556 buff[size - 1] = 0;
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557 if (pos + end_len > size - 1)
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558 lprintf("Warning: path truncated: %s\n", buff);
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561 static void make_config_cfg(char *cfg_buff_512)
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563 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);
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564 if (config_slot != 0)
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566 char *p = strrchr(cfg_buff_512, '.');
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568 p = cfg_buff_512 + strlen(cfg_buff_512);
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569 sprintf(p, ".%i.cfg", config_slot);
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571 cfg_buff_512[511] = 0;
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574 void emu_set_defconfig(void)
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576 memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
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577 PicoOpt = currentConfig.s_PicoOpt;
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578 PsndRate = currentConfig.s_PsndRate;
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579 PicoRegionOverride = currentConfig.s_PicoRegion;
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580 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
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581 PicoCDBuffers = currentConfig.s_PicoCDBuffers;
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584 int emu_read_config(int game, int no_defaults)
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592 emu_set_defconfig();
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593 make_config_cfg(cfg);
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594 ret = config_readsect(cfg, NULL);
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598 char *sect = emu_make_rom_id();
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600 // try new .cfg way
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601 if (config_slot != 0)
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602 sprintf(cfg, "game.%i.cfg", config_slot);
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603 else strcpy(cfg, "game.cfg");
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606 if (config_havesect(cfg, sect))
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608 // read user's config
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609 int vol = currentConfig.volume;
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610 emu_set_defconfig();
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611 ret = config_readsect(cfg, sect);
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612 currentConfig.volume = vol; // make vol global (bah)
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616 // read global config, and apply game_def.cfg on top
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617 make_config_cfg(cfg);
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618 config_readsect(cfg, NULL);
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619 ret = config_readsect("game_def.cfg", sect);
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624 lprintf("loaded cfg from sect \"%s\"\n", sect);
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628 plat_validate_config();
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630 // some sanity checks
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632 /* TODO: mv to plat_validate_config() */
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633 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
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634 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;
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635 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;
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637 if (currentConfig.volume < 0 || currentConfig.volume > 99)
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638 currentConfig.volume = 50;
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641 config_slot_current = config_slot;
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647 int emu_write_config(int is_game)
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649 char cfg[512], *game_sect = NULL;
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650 int ret, write_lrom = 0;
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654 make_config_cfg(cfg);
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657 if (config_slot != 0)
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658 sprintf(cfg, "game.%i.cfg", config_slot);
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659 else strcpy(cfg, "game.cfg");
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660 game_sect = emu_make_rom_id();
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661 lprintf("emu_write_config: sect \"%s\"\n", game_sect);
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664 lprintf("emu_write_config: %s ", cfg);
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665 ret = config_writesect(cfg, game_sect);
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666 if (write_lrom) config_writelrom(cfg);
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670 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");
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672 if (ret == 0) config_slot_current = config_slot;
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677 /* always using built-in font */
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679 #define mk_text_out(name, type, val, topleft, step_x, step_y) \
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680 void name(int x, int y, const char *text) \
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682 int i, l, len = strlen(text); \
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683 type *screen = (type *)(topleft) + x * step_x + y * step_y; \
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685 for (i = 0; i < len; i++, screen += 8 * step_x) \
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687 for (l = 0; l < 8; l++) \
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689 unsigned char fd = fontdata8x8[text[i] * 8 + l];\
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690 type *s = screen + l * step_y; \
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691 if (fd&0x80) s[step_x * 0] = val; \
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692 if (fd&0x40) s[step_x * 1] = val; \
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693 if (fd&0x20) s[step_x * 2] = val; \
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694 if (fd&0x10) s[step_x * 3] = val; \
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695 if (fd&0x08) s[step_x * 4] = val; \
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696 if (fd&0x04) s[step_x * 5] = val; \
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697 if (fd&0x02) s[step_x * 6] = val; \
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698 if (fd&0x01) s[step_x * 7] = val; \
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703 mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)
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704 mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)
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705 mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,
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706 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
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707 mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,
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708 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)
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713 void update_movie(void)
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715 int offs = Pico.m.frame_count*3 + 0x40;
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716 if (offs+3 > movie_size) {
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719 emu_status_msg("END OF MOVIE.");
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720 lprintf("END OF MOVIE.\n");
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723 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
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724 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C
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725 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A
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726 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B
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727 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
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728 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C
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729 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A
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730 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B
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731 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
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732 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
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733 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
\r
734 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
\r
735 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
\r
736 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
\r
741 static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)
\r
743 return gzread(file, p, _n);
\r
747 static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)
\r
749 return gzwrite(file, p, _n);
\r
752 static int try_ropen_file(const char *fname)
\r
756 f = fopen(fname, "rb");
\r
764 char *emu_get_save_fname(int load, int is_sram, int slot)
\r
766 static char saveFname[512];
\r
771 romfname_ext(saveFname, (PicoAHW&1) ? "brm"PATH_SEP : "srm"PATH_SEP, (PicoAHW&1) ? ".brm" : ".srm");
\r
773 if (try_ropen_file(saveFname)) return saveFname;
\r
774 // try in current dir..
\r
775 romfname_ext(saveFname, NULL, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");
\r
776 if (try_ropen_file(saveFname)) return saveFname;
\r
777 return NULL; // give up
\r
783 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
\r
784 strcat(ext, (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds");
\r
786 romfname_ext(saveFname, "mds" PATH_SEP, ext);
\r
788 if (try_ropen_file(saveFname)) return saveFname;
\r
789 romfname_ext(saveFname, NULL, ext);
\r
790 if (try_ropen_file(saveFname)) return saveFname;
\r
791 // no gzipped states, search for non-gzipped
\r
792 if (currentConfig.EmuOpt & EOPT_GZIP_SAVES)
\r
795 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
\r
796 strcat(ext, ".mds");
\r
798 romfname_ext(saveFname, "mds"PATH_SEP, ext);
\r
799 if (try_ropen_file(saveFname)) return saveFname;
\r
800 romfname_ext(saveFname, NULL, ext);
\r
801 if (try_ropen_file(saveFname)) return saveFname;
\r
810 int emu_check_save_file(int slot)
\r
812 return emu_get_save_fname(1, 0, slot) ? 1 : 0;
\r
815 void emu_setSaveStateCbs(int gz)
\r
818 areaRead = gzRead2;
\r
819 areaWrite = gzWrite2;
\r
820 areaEof = (areaeof *) gzeof;
\r
821 areaSeek = (areaseek *) gzseek;
\r
822 areaClose = (areaclose *) gzclose;
\r
824 areaRead = (arearw *) fread;
\r
825 areaWrite = (arearw *) fwrite;
\r
826 areaEof = (areaeof *) feof;
\r
827 areaSeek = (areaseek *) fseek;
\r
828 areaClose = (areaclose *) fclose;
\r
832 int emu_save_load_game(int load, int sram)
\r
837 // make save filename
\r
838 saveFname = emu_get_save_fname(load, sram, state_slot);
\r
839 if (saveFname == NULL) {
\r
841 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");
\r
845 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
\r
851 unsigned char *sram_data;
\r
853 if (PicoAHW & PAHW_MCD)
\r
855 if (PicoOpt&POPT_EN_MCD_RAMCART) {
\r
856 sram_size = 0x12000;
\r
857 sram_data = SRam.data;
\r
859 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);
\r
861 sram_size = 0x2000;
\r
862 sram_data = Pico_mcd->bram;
\r
863 truncate = 0; // the .brm may contain RAM cart data after normal brm
\r
866 sram_size = SRam.end-SRam.start+1;
\r
867 if(Pico.m.sram_reg & 4) sram_size=0x2000;
\r
868 sram_data = SRam.data;
\r
870 if (!sram_data) return 0; // SRam forcefully disabled for this game
\r
874 sramFile = fopen(saveFname, "rb");
\r
875 if(!sramFile) return -1;
\r
876 fread(sram_data, 1, sram_size, sramFile);
\r
878 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))
\r
879 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
\r
881 // sram save needs some special processing
\r
882 // see if we have anything to save
\r
883 for (; sram_size > 0; sram_size--)
\r
884 if (sram_data[sram_size-1]) break;
\r
887 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");
\r
888 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry
\r
889 if (!sramFile) return -1;
\r
890 ret = fwrite(sram_data, 1, sram_size, sramFile);
\r
891 ret = (ret != sram_size) ? -1 : 0;
\r
902 void *PmovFile = NULL;
\r
903 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)
\r
905 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {
\r
906 emu_setSaveStateCbs(1);
\r
907 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);
\r
912 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {
\r
913 emu_setSaveStateCbs(0);
\r
917 ret = PmovState(load ? 6 : 5, PmovFile);
\r
918 areaClose(PmovFile);
\r
920 if (load) Pico.m.dirtyPal=1;
\r
927 emu_status_msg(load ? "GAME LOADED" : "GAME SAVED");
\r
930 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");
\r
938 void emu_set_fastforward(int set_on)
\r
940 static void *set_PsndOut = NULL;
\r
941 static int set_Frameskip, set_EmuOpt, is_on = 0;
\r
943 if (set_on && !is_on) {
\r
944 set_PsndOut = PsndOut;
\r
945 set_Frameskip = currentConfig.Frameskip;
\r
946 set_EmuOpt = currentConfig.EmuOpt;
\r
948 currentConfig.Frameskip = 8;
\r
949 currentConfig.EmuOpt &= ~4;
\r
950 currentConfig.EmuOpt |= 0x40000;
\r
952 emu_status_msg("FAST FORWARD");
\r
954 else if (!set_on && is_on) {
\r
955 PsndOut = set_PsndOut;
\r
956 currentConfig.Frameskip = set_Frameskip;
\r
957 currentConfig.EmuOpt = set_EmuOpt;
\r
963 static void emu_msg_tray_open(void)
\r
965 emu_status_msg("CD tray opened");
\r
968 void emu_reset_game(void)
\r
974 void run_events_pico(unsigned int events)
\r
978 if (events & PEV_PICO_SWINP) {
\r
980 if (pico_inp_mode > 2)
\r
982 switch (pico_inp_mode) {
\r
983 case 2: emu_status_msg("Input: Pen on Pad"); break;
\r
984 case 1: emu_status_msg("Input: Pen on Storyware"); break;
\r
985 case 0: emu_status_msg("Input: Joystick");
\r
986 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
\r
990 if (events & PEV_PICO_PPREV) {
\r
992 if (PicoPicohw.page < 0)
\r
993 PicoPicohw.page = 0;
\r
994 emu_status_msg("Page %i", PicoPicohw.page);
\r
996 if (events & PEV_PICO_PNEXT) {
\r
998 if (PicoPicohw.page > 6)
\r
999 PicoPicohw.page = 6;
\r
1000 emu_status_msg("Page %i", PicoPicohw.page);
\r
1003 if (pico_inp_mode == 0)
\r
1006 /* handle other input modes */
\r
1007 if (PicoPad[0] & 1) pico_pen_y--;
\r
1008 if (PicoPad[0] & 2) pico_pen_y++;
\r
1009 if (PicoPad[0] & 4) pico_pen_x--;
\r
1010 if (PicoPad[0] & 8) pico_pen_x++;
\r
1011 PicoPad[0] &= ~0x0f; // release UDLR
\r
1013 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
\r
1014 if (pico_pen_y < 8)
\r
1016 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)
\r
1017 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;
\r
1018 if (pico_pen_x < 0)
\r
1020 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)
\r
1021 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;
\r
1023 PicoPicohw.pen_pos[0] = pico_pen_x;
\r
1024 if (!(Pico.video.reg[12] & 1))
\r
1025 PicoPicohw.pen_pos[0] += pico_pen_x / 4;
\r
1026 PicoPicohw.pen_pos[0] += 0x3c;
\r
1027 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
\r
1030 static void do_turbo(int *pad, int acts)
\r
1032 static int turbo_pad = 0;
\r
1033 static unsigned char turbo_cnt[3] = { 0, 0, 0 };
\r
1034 int inc = currentConfig.turbo_rate * 2;
\r
1036 if (acts & 0x1000) {
\r
1037 turbo_cnt[0] += inc;
\r
1038 if (turbo_cnt[0] >= 60)
\r
1039 turbo_pad ^= 0x10, turbo_cnt[0] = 0;
\r
1041 if (acts & 0x2000) {
\r
1042 turbo_cnt[1] += inc;
\r
1043 if (turbo_cnt[1] >= 60)
\r
1044 turbo_pad ^= 0x20, turbo_cnt[1] = 0;
\r
1046 if (acts & 0x4000) {
\r
1047 turbo_cnt[2] += inc;
\r
1048 if (turbo_cnt[2] >= 60)
\r
1049 turbo_pad ^= 0x40, turbo_cnt[2] = 0;
\r
1051 *pad |= turbo_pad & (acts >> 8);
\r
1054 static void run_events_ui(unsigned int which)
\r
1056 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))
\r
1059 if ( emu_check_save_file(state_slot) &&
\r
1060 (((which & PEV_STATE_LOAD) && (currentConfig.EmuOpt & EOPT_CONFIRM_LOAD)) ||
\r
1061 ((which & PEV_STATE_SAVE) && (currentConfig.EmuOpt & EOPT_CONFIRM_SAVE))) )
\r
1067 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");
\r
1068 len = strlen(tmp);
\r
1069 nm = in_get_key_name(-1, -PBTN_MA3);
\r
1070 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);
\r
1071 len = strlen(tmp);
\r
1072 nm = in_get_key_name(-1, -PBTN_MBACK);
\r
1073 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);
\r
1075 plat_status_msg_busy_first(tmp);
\r
1077 in_set_blocking(1);
\r
1078 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))
\r
1080 while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )
\r
1082 if (keys & PBTN_MBACK)
\r
1084 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))
\r
1086 in_set_blocking(0);
\r
1089 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING GAME" : "SAVING GAME");
\r
1090 PicoStateProgressCB = plat_status_msg_busy_next;
\r
1091 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);
\r
1092 PicoStateProgressCB = NULL;
\r
1095 if (which & PEV_SWITCH_RND)
\r
1097 plat_video_toggle_renderer(1, 0);
\r
1099 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))
\r
1101 if (which & PEV_SSLOT_PREV) {
\r
1103 if (state_slot < 0)
\r
1107 if (state_slot > 9)
\r
1111 emu_status_msg("SAVE SLOT %i [%s]", state_slot,
\r
1112 emu_check_save_file(state_slot) ? "USED" : "FREE");
\r
1114 if (which & PEV_MENU)
\r
1115 engineState = PGS_Menu;
\r
1118 void emu_update_input(void)
\r
1120 static int prev_events = 0;
\r
1121 int actions[IN_BINDTYPE_COUNT] = { 0, };
\r
1122 int pl_actions[2];
\r
1125 in_update(actions);
\r
1127 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];
\r
1128 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;
\r
1130 PicoPad[0] = pl_actions[0] & 0xfff;
\r
1131 PicoPad[1] = pl_actions[1] & 0xfff;
\r
1133 if (pl_actions[0] & 0x7000)
\r
1134 do_turbo(&PicoPad[0], pl_actions[0]);
\r
1135 if (pl_actions[1] & 0x7000)
\r
1136 do_turbo(&PicoPad[1], pl_actions[1]);
\r
1138 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1140 // volume is treated in special way and triggered every frame
\r
1141 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))
\r
1142 plat_update_volume(1, events & PEV_VOL_UP);
\r
1144 if ((events ^ prev_events) & PEV_FF) {
\r
1145 emu_set_fastforward(events & PEV_FF);
\r
1146 plat_update_volume(0, 0);
\r
1150 events &= ~prev_events;
\r
1152 if (PicoAHW == PAHW_PICO)
\r
1153 run_events_pico(events);
\r
1155 run_events_ui(events);
\r
1159 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;
\r
1162 static void mkdir_path(char *path_with_reserve, int pos, const char *name)
\r
1164 strcpy(path_with_reserve + pos, name);
\r
1165 if (plat_is_dir(path_with_reserve))
\r
1167 if (mkdir(path_with_reserve, 0777) < 0)
\r
1168 lprintf("failed to create: %s\n", path_with_reserve);
\r
1171 void emu_init(void)
\r
1176 /* make dirs for saves */
\r
1177 pos = plat_get_root_dir(path, sizeof(path) - 4);
\r
1178 mkdir_path(path, pos, "mds");
\r
1179 mkdir_path(path, pos, "srm");
\r
1180 mkdir_path(path, pos, "brm");
\r
1182 make_config_cfg(path);
\r
1183 config_readlrom(path);
\r
1186 PicoMessage = plat_status_msg_busy_next;
\r
1187 PicoMCDopenTray = emu_msg_tray_open;
\r
1188 PicoMCDcloseTray = menu_loop_tray;
\r
1191 void emu_finish(void)
\r
1194 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1195 emu_save_load_game(0, 1);
\r
1199 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {
\r
1201 make_config_cfg(cfg);
\r
1202 config_writelrom(cfg);
\r
1211 static void skip_frame(int do_audio)
\r
1213 PicoSkipFrame = do_audio ? 1 : 2;
\r
1215 PicoSkipFrame = 0;
\r
1218 /* our tick here is 1 us right now */
\r
1219 #define ms_to_ticks(x) (unsigned int)(x * 1000)
\r
1220 #define get_ticks() plat_get_ticks_us()
\r
1222 void emu_loop(void)
\r
1224 int pframes_done; /* "period" frames, used for sync */
\r
1225 int frames_done, frames_shown; /* actual frames for fps counter */
\r
1226 int oldmodes, target_fps, target_frametime;
\r
1227 unsigned int timestamp_base = 0, timestamp_fps;
\r
1228 char *notice_msg = NULL;
\r
1234 /* make sure we are in correct mode */
\r
1235 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
1236 Pico.m.dirtyPal = 1;
\r
1238 /* number of ticks per frame */
\r
1241 target_frametime = ms_to_ticks(1000) / 50;
\r
1244 target_frametime = ms_to_ticks(1000) / 60 + 1;
\r
1247 // prepare CD buffer
\r
1248 if (PicoAHW & PAHW_MCD)
\r
1249 PicoCDBufferInit();
\r
1251 if (currentConfig.EmuOpt & EOPT_PSYNC)
\r
1252 plat_video_wait_vsync();
\r
1256 timestamp_fps = get_ticks();
\r
1259 frames_done = frames_shown = pframes_done = 0;
\r
1261 /* loop with resync every 1 sec. */
\r
1262 while (engineState == PGS_Running)
\r
1264 unsigned int timestamp;
\r
1265 int diff, diff_lim;
\r
1268 timestamp = get_ticks();
\r
1269 if (reset_timing) {
\r
1271 timestamp_base = timestamp;
\r
1275 // show notice_msg message?
\r
1276 if (notice_msg_time != 0)
\r
1278 static int noticeMsgSum;
\r
1279 if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(2000)) {
\r
1280 notice_msg_time = 0;
\r
1281 plat_status_msg_clear();
\r
1282 notice_msg = NULL;
\r
1284 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];
\r
1285 if (sum != noticeMsgSum) {
\r
1286 plat_status_msg_clear();
\r
1287 noticeMsgSum = sum;
\r
1289 notice_msg = noticeMsg;
\r
1293 // check for mode changes
\r
1294 modes = ((Pico.video.reg[12]&1)<<2) | (Pico.video.reg[1]&8);
\r
1295 if (modes != oldmodes) {
\r
1297 pemu_video_mode_change(!(modes & 4), (modes & 8));
\r
1300 // second changed?
\r
1301 if (timestamp - timestamp_fps >= ms_to_ticks(1000))
\r
1304 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
1305 if (++bench == 10) {
\r
1307 bench_fps_s = bench_fps;
\r
1308 bf[bfp++ & 3] = bench_fps;
\r
1311 bench_fps += frames_shown;
\r
1312 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
1314 if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {
\r
1315 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
1316 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
1319 frames_shown = frames_done = 0;
\r
1320 timestamp_fps += ms_to_ticks(1000);
\r
1323 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
1326 if (timestamp - timestamp_base >= ms_to_ticks(1000))
\r
1328 if (PsndOut == 0 && currentConfig.Frameskip >= 0)
\r
1331 pframes_done -= target_fps;
\r
1332 timestamp_base += ms_to_ticks(1000);
\r
1335 diff = timestamp - timestamp_base;
\r
1336 diff_lim = (pframes_done + 1) * target_frametime;
\r
1338 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
1340 for (i = 0; i < currentConfig.Frameskip; i++) {
\r
1341 emu_update_input();
\r
1343 pframes_done++; frames_done++;
\r
1344 diff_lim += target_frametime;
\r
1346 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
\r
1347 timestamp = get_ticks();
\r
1348 diff = timestamp - timestamp_base;
\r
1349 if (diff < diff_lim) // we are too fast
\r
1350 plat_wait_till_us(timestamp_base + diff_lim);
\r
1354 else if (diff > diff_lim)
\r
1356 /* no time left for this frame - skip */
\r
1357 if (diff - diff_lim >= ms_to_ticks(300)) {
\r
1358 /* if too much behind, reset instead */
\r
1362 emu_update_input();
\r
1363 skip_frame(diff < diff_lim + target_frametime * 2);
\r
1364 pframes_done++; frames_done++;
\r
1368 emu_update_input();
\r
1371 /* frame limiter */
\r
1372 if (!reset_timing && (PsndOut != NULL || currentConfig.Frameskip < 0))
\r
1374 timestamp = get_ticks();
\r
1375 diff = timestamp - timestamp_base;
\r
1377 // sleep or vsync if we are still too fast
\r
1378 if (diff < diff_lim)
\r
1380 // we are too fast
\r
1381 if (currentConfig.EmuOpt & EOPT_PSYNC) {
\r
1382 if (diff_lim - diff > target_frametime/2)
\r
1383 plat_wait_till_us(timestamp_base + target_frametime/4);
\r
1384 plat_video_wait_vsync();
\r
1386 plat_wait_till_us(timestamp_base + diff_lim);
\r
1390 pemu_update_display(fpsbuff, notice_msg);
\r
1392 pframes_done++; frames_done++; frames_shown++;
\r
1395 emu_set_fastforward(0);
\r
1397 if (PicoAHW & PAHW_MCD)
\r
1398 PicoCDBufferFree();
\r
1401 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
1402 plat_status_msg_busy_first("Writing SRAM/BRAM...");
\r
1403 emu_save_load_game(0, 1);
\r
1407 // do menu background to be sure it's right
\r
1408 pemu_forced_frame(POPT_EN_SOFTSCALE);
\r