1 // (c) Copyright 2006 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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8 #include <sys/time.h>
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9 #include <sys/stat.h>
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10 #include <sys/types.h>
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11 #include <linux/limits.h>
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21 #include "asmutils.h"
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22 #include "cpuctrl.h"
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24 #include <Pico/PicoInt.h>
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25 #include <Pico/Patch.h>
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26 #include <zlib/zlib.h>
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30 #define OSD_FPS_X 220
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32 #define OSD_FPS_X 260
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35 // PicoPad[] format: SACB RLDU
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36 char *actionNames[] = {
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37 "UP", "DOWN", "LEFT", "RIGHT", "B", "C", "A", "START",
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38 0, 0, 0, 0, 0, 0, 0, 0, // Z, Y, X, MODE (enabled only when needed), ?, ?, ?, ?
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39 0, 0, 0, 0, 0, 0, 0, "ENTER MENU", // player2_flag, ?, ?, ?, ?, ?, ?, menu
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40 "NEXT SAVE SLOT", "PREV SAVE SLOT", "SWITCH RENDERER", "SAVE STATE",
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41 "LOAD STATE", "VOLUME UP", "VOLUME DOWN", "DONE"
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45 int select_exits = 0;
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46 char *PicoConfigFile = "picoconfig.bin";
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47 currentConfig_t currentConfig;
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49 char romFileName[PATH_MAX];
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50 unsigned char *rom_data = NULL;
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52 extern int crashed_940;
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54 static short sndBuffer[2*44100/50];
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55 static char noticeMsg[64]; // notice msg to draw
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56 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing
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57 static int reset_timing, osd_fps_x;
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58 static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos
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59 static int gp2x_old_gamma = 100;
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60 static unsigned char *movie_data = NULL;
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61 static int movie_size = 0;
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62 unsigned char *framebuff = 0; // temporary buffer for alt renderer
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67 static FILE *logf = NULL;
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69 void pprintf(char *texto, ...)
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73 va_start(args,texto);
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74 vfprintf(logf,texto,args);
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81 static void strlwr(char* string)
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83 while ( (*string++ = (char)tolower(*string)) );
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86 static int try_rfn_cut(void)
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91 p = romFileName + strlen(romFileName) - 1;
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92 for (; p > romFileName; p--)
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93 if (*p == '.') break;
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96 if((tmp = fopen(romFileName, "rb"))) {
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103 static void get_ext(char *file, char *ext)
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107 p = file + strlen(file) - 4;
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108 if (p < file) p = file;
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109 strncpy(ext, p, 4);
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114 char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };
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115 char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };
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116 char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
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118 extern char **g_argv;
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120 int find_bios(int region, char **bios_file)
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122 static char bios_path[1024];
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127 if (region == 4) { // US
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128 files = biosfiles_us;
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129 count = sizeof(biosfiles_us) / sizeof(char *);
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130 } else if (region == 8) { // EU
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131 files = biosfiles_eu;
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132 count = sizeof(biosfiles_eu) / sizeof(char *);
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133 } else if (region == 1 || region == 2) {
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134 files = biosfiles_jp;
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135 count = sizeof(biosfiles_jp) / sizeof(char *);
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140 for (i = 0; i < count; i++)
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142 strncpy(bios_path, g_argv[0], 1023);
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143 bios_path[1024-32] = 0;
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144 for (j = strlen(bios_path); j > 0; j--)
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145 if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }
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146 strcat(bios_path, files[i]);
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147 strcat(bios_path, ".bin");
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148 f = fopen(bios_path, "rb");
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151 bios_path[strlen(bios_path) - 4] = 0;
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152 strcat(bios_path, ".zip");
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153 f = fopen(bios_path, "rb");
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158 printf("using bios: %s\n", bios_path);
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160 if (bios_file) *bios_file = bios_path;
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163 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",
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164 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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165 printf("%s\n", menuErrorMsg);
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170 /* checks if romFileName points to valid MegaCD image
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171 * if so, checks for suitable BIOS */
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172 static int cd_check(char **bios_file)
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174 unsigned char buf[32];
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176 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe
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178 cd_f = pm_open(romFileName);
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179 if (!cd_f) return 0; // let the upper level handle this
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181 if (pm_read(buf, 32, cd_f) != 32) {
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186 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)
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187 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)
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193 /* it seems we have a CD image here. Try to detect region and load a suitable BIOS now.. */
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194 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
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195 pm_read(buf, 1, cd_f);
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198 if (buf[0] == 0x64) region = 8; // EU
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199 if (buf[0] == 0xa1) region = 1; // JAP
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201 printf("detected %s Sega/Mega CD image with %s region\n",
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202 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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204 if (PicoRegionOverride) {
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205 region = PicoRegionOverride;
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206 printf("overrided region to %s\n", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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209 if(find_bios(region, bios_file))
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210 return type; // CD and BIOS detected
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212 return -1; // CD detected but load failed
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215 int emu_ReloadRom(void)
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217 unsigned int rom_size = 0;
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218 char *used_rom_name = romFileName;
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223 printf("emu_ReloadRom(%s)\n", romFileName);
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225 get_ext(romFileName, ext);
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227 // detect wrong extensions
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228 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz
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229 sprintf(menuErrorMsg, "Not a ROM selected.");
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235 // check for movie file
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240 if(!strcmp(ext, ".gmv")) {
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241 // check for both gmv and rom
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243 FILE *movie_file = fopen(romFileName, "rb");
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245 sprintf(menuErrorMsg, "Failed to open movie.");
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248 fseek(movie_file, 0, SEEK_END);
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249 movie_size = ftell(movie_file);
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250 fseek(movie_file, 0, SEEK_SET);
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251 if(movie_size < 64+3) {
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252 sprintf(menuErrorMsg, "Invalid GMV file.");
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253 fclose(movie_file);
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256 movie_data = malloc(movie_size);
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257 if(movie_data == NULL) {
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258 sprintf(menuErrorMsg, "low memory.");
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259 fclose(movie_file);
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262 fread(movie_data, 1, movie_size, movie_file);
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263 fclose(movie_file);
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264 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
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265 sprintf(menuErrorMsg, "Invalid GMV file.");
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268 dummy = try_rfn_cut() || try_rfn_cut();
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270 sprintf(menuErrorMsg, "Could't find a ROM for movie.");
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273 get_ext(romFileName, ext);
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275 else if (!strcmp(ext, ".pat")) {
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277 PicoPatchLoad(romFileName);
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278 dummy = try_rfn_cut() || try_rfn_cut();
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280 sprintf(menuErrorMsg, "Could't find a ROM to patch.");
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283 get_ext(romFileName, ext);
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286 // check for MegaCD image
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287 cd_state = cd_check(&used_rom_name);
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288 if (cd_state > 0) {
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290 get_ext(used_rom_name, ext);
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291 } else if (cd_state == -1) {
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295 if (PicoMCD & 1) PicoExitMCD();
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299 rom = pm_open(used_rom_name);
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301 sprintf(menuErrorMsg, "Failed to open rom.");
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311 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
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312 sprintf(menuErrorMsg, "PicoCartLoad() failed.");
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313 printf("%s\n", menuErrorMsg);
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319 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good
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320 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
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321 ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {
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322 if (rom_data) free(rom_data);
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324 sprintf(menuErrorMsg, "Not a ROM selected.");
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328 // load config for this ROM (do this before insert to get correct region)
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329 ret = emu_ReadConfig(1);
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333 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
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334 if(PicoCartInsert(rom_data, rom_size)) {
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335 sprintf(menuErrorMsg, "Failed to load ROM.");
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339 Pico.m.frame_count = 0;
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341 // insert CD if it was detected
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342 if (cd_state > 0) {
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343 ret = Insert_CD(romFileName, cd_state == 2);
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345 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");
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346 printf("%s\n", menuErrorMsg);
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351 // emu_ReadConfig() might have messed currentConfig.lastRomFile
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352 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);
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353 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;
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356 PicoPatchPrepare();
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360 // additional movie stuff
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362 if(movie_data[0x14] == '6')
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363 PicoOpt |= 0x20; // 6 button pad
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364 else PicoOpt &= ~0x20;
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365 PicoOpt |= 0x40; // accurate timing
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366 if(movie_data[0xF] >= 'A') {
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367 if(movie_data[0x16] & 0x80) {
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368 PicoRegionOverride = 8;
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370 PicoRegionOverride = 4;
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373 // TODO: bits 6 & 5
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375 movie_data[0x18+30] = 0;
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376 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);
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381 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");
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383 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");
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386 gettimeofday(¬iceMsgTime, 0);
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388 // load SRAM for this ROM
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389 if(currentConfig.EmuOpt & 1)
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390 emu_SaveLoadGame(1, 1);
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396 void emu_Init(void)
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398 // make temp buffer for alt renderer
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399 framebuff = malloc((8+320)*(8+240+8));
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402 printf("framebuff == 0\n");
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405 // make dirs for saves, cfgs, etc.
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406 mkdir("mds", 0777);
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407 mkdir("srm", 0777);
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408 mkdir("brm", 0777);
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409 mkdir("cfg", 0777);
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413 // logf = fopen("log.txt", "w");
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417 static void romfname_ext(char *dst, const char *prefix, const char *ext)
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420 int prefix_len = 0;
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422 // make save filename
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423 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;
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426 strcpy(dst, prefix);
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427 prefix_len = strlen(prefix);
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429 strncpy(dst + prefix_len, p, 511-prefix_len);
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431 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;
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432 if (ext) strcat(dst, ext);
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436 static void find_combos(void)
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440 // find out which keys and actions are combos
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441 combo_keys = combo_acts = 0;
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442 for (act = 0; act < 32; act++)
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445 if (act == 16) continue; // player2 flag
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446 for (u = 0; u < 32; u++)
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448 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;
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452 // loop again and mark those keys and actions as combo
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453 for (u = 0; u < 32; u++)
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455 if (currentConfig.KeyBinds[u] & (1 << act)) {
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456 combo_keys |= 1 << u;
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457 combo_acts |= 1 << act;
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462 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);
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466 int emu_ReadConfig(int game)
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474 // set default config
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475 memset(¤tConfig, 0, sizeof(currentConfig));
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476 currentConfig.lastRomFile[0] = 0;
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477 currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds
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478 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda
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479 currentConfig.PsndRate = 22050; // 44100;
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480 currentConfig.PicoRegion = 0; // auto
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481 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP
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482 currentConfig.Frameskip = -1; // auto
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483 currentConfig.CPUclock = 200;
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484 currentConfig.volume = 50;
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485 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU
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486 currentConfig.KeyBinds[ 4] = 1<<1;
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487 currentConfig.KeyBinds[ 2] = 1<<2;
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488 currentConfig.KeyBinds[ 6] = 1<<3;
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489 currentConfig.KeyBinds[14] = 1<<4;
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490 currentConfig.KeyBinds[13] = 1<<5;
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491 currentConfig.KeyBinds[12] = 1<<6;
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492 currentConfig.KeyBinds[ 8] = 1<<7;
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493 currentConfig.KeyBinds[15] = 1<<26; // switch rend
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494 currentConfig.KeyBinds[10] = 1<<27; // save state
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495 currentConfig.KeyBinds[11] = 1<<28; // load state
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496 currentConfig.KeyBinds[23] = 1<<29; // vol up
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497 currentConfig.KeyBinds[22] = 1<<30; // vol down
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498 currentConfig.gamma = 100;
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499 strncpy(cfg, PicoConfigFile, 511);
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502 romfname_ext(cfg, "cfg/", ".pbcfg");
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503 f = fopen(cfg, "rb");
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504 if (!f) romfname_ext(cfg, NULL, ".pbcfg");
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508 printf("emu_ReadConfig: %s ", cfg);
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509 f = fopen(cfg, "rb");
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511 bread = fread(¤tConfig, 1, sizeof(currentConfig), f);
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514 printf((bread == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");
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516 PicoOpt = currentConfig.PicoOpt;
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517 PsndRate = currentConfig.PsndRate;
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518 PicoRegionOverride = currentConfig.PicoRegion;
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519 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;
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520 if (PicoOpt & 0x20) {
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521 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";
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522 actionNames[10] = "X"; actionNames[11] = "MODE";
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524 // some sanity checks
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525 if (currentConfig.CPUclock < 1 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
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526 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;
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527 // if volume keys are unbound, bind them to volume control
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528 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {
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529 currentConfig.KeyBinds[23] = 1<<29; // vol up
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530 currentConfig.KeyBinds[22] = 1<<30; // vol down
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533 return (bread == sizeof(currentConfig));
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537 int emu_WriteConfig(int game)
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545 strncpy(cfg, PicoConfigFile, 511);
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548 romfname_ext(cfg, "cfg", ".pbcfg");
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551 printf("emu_WriteConfig: %s ", cfg);
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552 f = fopen(cfg, "wb");
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554 currentConfig.PicoOpt = PicoOpt;
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555 currentConfig.PsndRate = PsndRate;
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556 currentConfig.PicoRegion = PicoRegionOverride;
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557 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;
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558 bwrite = fwrite(¤tConfig, 1, sizeof(currentConfig), f);
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563 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");
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565 return (bwrite == sizeof(currentConfig));
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569 void emu_Deinit(void)
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572 if((currentConfig.EmuOpt & 1) && SRam.changed) {
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573 emu_SaveLoadGame(0, 1);
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577 if (!(currentConfig.EmuOpt & 0x20))
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578 emu_WriteConfig(0);
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585 if (gp2x_old_gamma != 100)
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590 void osd_text(int x, int y, const char *text)
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592 int len = strlen(text)*8;
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594 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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596 x &= ~3; // align x
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597 len = (len+3) >> 2;
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598 for (h = 0; h < 8; h++) {
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599 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));
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600 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
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602 gp2x_text_out8_2(x, y, text, 0xf0);
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605 x &= ~1; // align x
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606 len = (len+1) >> 1;
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607 for (h = 0; h < 8; h++) {
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608 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));
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609 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;
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611 gp2x_text_out15(x, y, text);
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615 static void cd_leds(void)
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620 // if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change
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621 old_reg = Pico_mcd->s68k_regs[0];
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623 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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625 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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626 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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627 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =
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628 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =
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629 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;
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630 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =
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631 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =
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632 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;
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635 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);
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636 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
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637 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
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638 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
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639 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
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640 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
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644 static int EmuScan16(unsigned int num, void *sdata)
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646 if (!(Pico.video.reg[1]&8)) num += 8;
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647 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);
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652 static int EmuScan8(unsigned int num, void *sdata)
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654 if (!(Pico.video.reg[1]&8)) num += 8;
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655 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);
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660 int localPal[0x100];
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661 static void (*vidCpyM2)(void *dest, void *src) = NULL;
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663 static void blit(const char *fps, const char *notice)
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665 int emu_opt = currentConfig.EmuOpt;
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667 if (PicoOpt&0x10) {
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668 // 8bit fast renderer
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669 if (Pico.m.dirtyPal) {
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670 Pico.m.dirtyPal = 0;
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671 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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672 // feed new palette to our device
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673 gp2x_video_setpalette(localPal, 0x40);
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675 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);
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676 } else if (!(emu_opt&0x80)) {
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677 // 8bit accurate renderer
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678 if (Pico.m.dirtyPal) {
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679 Pico.m.dirtyPal = 0;
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680 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode
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681 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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682 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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683 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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684 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);
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685 localPal[0xc0] = 0x0000c000;
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686 localPal[0xd0] = 0x00c00000;
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687 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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688 localPal[0xf0] = 0x00ffffff;
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689 gp2x_video_setpalette(localPal, 0x100);
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690 } else if (rendstatus & 0x20) { // mid-frame palette changes
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691 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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692 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
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693 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
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694 gp2x_video_setpalette(localPal, 0xc0);
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696 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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697 gp2x_video_setpalette(localPal, 0x40);
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702 if (notice) osd_text(4, 232, notice);
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704 osd_text(osd_fps_x, 232, fps);
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705 if ((emu_opt & 0x400) && (PicoMCD & 1))
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708 //gp2x_video_wait_vsync();
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711 if (!(PicoOpt&0x10)) {
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712 if (!(Pico.video.reg[1]&8)) {
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713 if (currentConfig.EmuOpt&0x80) {
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714 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;
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716 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;
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719 DrawLineDest = gp2x_screen;
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725 // clears whole screen or just the notice area (in all buffers)
\r
726 static void clearArea(int full)
\r
728 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
730 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
\r
731 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
\r
733 // 16bit accurate renderer
\r
734 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);
\r
735 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
\r
740 static void vidResetMode(void)
\r
742 if (PicoOpt&0x10) {
\r
743 gp2x_video_changemode(8);
\r
744 } else if (currentConfig.EmuOpt&0x80) {
\r
745 gp2x_video_changemode(15);
\r
746 PicoDrawSetColorFormat(1);
\r
747 PicoScan = EmuScan16;
\r
750 gp2x_video_changemode(8);
\r
751 PicoDrawSetColorFormat(2);
\r
752 PicoScan = EmuScan8;
\r
755 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
\r
756 // setup pal for 8-bit modes
\r
757 localPal[0xc0] = 0x0000c000; // MCD LEDs
\r
758 localPal[0xd0] = 0x00c00000;
\r
759 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
\r
760 localPal[0xf0] = 0x00ffffff;
\r
761 gp2x_video_setpalette(localPal, 0x100);
\r
762 gp2x_memset_all_buffers(0, 0xe0, 320*240);
\r
765 Pico.m.dirtyPal = 1;
\r
767 gp2x_video_RGB_setscaling((PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
\r
771 static void emu_state_cb(const char *str)
\r
777 static void RunEvents(unsigned int which)
\r
779 if(which & 0x1800) { // save or load (but not both)
\r
781 if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && emu_check_save_file(state_slot)) {
\r
782 unsigned long keys;
\r
783 blit("", "OVERWRITE SAVE? (Y=yes, X=no)");
\r
784 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )
\r
786 if (keys & GP2X_X) do_it = 0;
\r
790 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
\r
791 PicoStateProgressCB = emu_state_cb;
\r
792 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);
\r
793 emu_SaveLoadGame((which & 0x1000) >> 12, 0);
\r
794 PicoStateProgressCB = NULL;
\r
799 if(which & 0x0400) { // switch renderer
\r
800 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
\r
801 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;
\r
802 else currentConfig.EmuOpt &= ~0x80;
\r
806 if (PicoOpt&0x10) {
\r
807 strcpy(noticeMsg, " 8bit fast renderer");
\r
808 } else if (currentConfig.EmuOpt&0x80) {
\r
809 strcpy(noticeMsg, "16bit accurate renderer");
\r
811 strcpy(noticeMsg, " 8bit accurate renderer");
\r
814 gettimeofday(¬iceMsgTime, 0);
\r
816 if(which & 0x0300) {
\r
819 if(state_slot < 0) state_slot = 9;
\r
822 if(state_slot > 9) state_slot = 0;
\r
824 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");
\r
825 gettimeofday(¬iceMsgTime, 0);
\r
827 if(which & 0x0080) {
\r
828 engineState = PGS_Menu;
\r
833 static void updateMovie(void)
\r
835 int offs = Pico.m.frame_count*3 + 0x40;
\r
836 if (offs+3 > movie_size) {
\r
839 strcpy(noticeMsg, "END OF MOVIE.");
\r
840 printf("END OF MOVIE.\n");
\r
841 gettimeofday(¬iceMsgTime, 0);
\r
844 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
\r
845 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A
\r
846 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B
\r
847 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A
\r
848 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
\r
849 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A
\r
850 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B
\r
851 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A
\r
852 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
\r
853 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
\r
854 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
\r
855 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
\r
856 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
\r
857 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
\r
862 static void updateKeys(void)
\r
864 unsigned long keys, allActions[2] = { 0, 0 }, events;
\r
865 static unsigned long prevEvents = 0;
\r
868 keys = gp2x_joystick_read(0);
\r
869 if (keys & GP2X_SELECT) {
\r
870 engineState = select_exits ? PGS_Quit : PGS_Menu;
\r
871 // wait until select is released, so menu would not resume game
\r
872 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);
\r
875 keys &= CONFIGURABLE_KEYS;
\r
877 for (i = 0; i < 32; i++)
\r
879 if (keys & (1 << i)) {
\r
880 int pl, acts = currentConfig.KeyBinds[i];
\r
881 if (!acts) continue;
\r
882 pl = (acts >> 16) & 1;
\r
883 if (combo_keys & (1 << i)) {
\r
884 int u = i+1, acts_c = acts & combo_acts;
\r
885 // let's try to find the other one
\r
887 for (; u < 32; u++)
\r
888 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {
\r
889 allActions[pl] |= acts_c;
\r
890 keys &= ~((1 << i) | (1 << u));
\r
893 // add non-combo actions if combo ones were not found
\r
894 if (!acts_c || u == 32)
\r
895 allActions[pl] |= acts & ~combo_acts;
\r
897 allActions[pl] |= acts;
\r
903 if (num_of_joys > 0)
\r
905 gp2x_usbjoy_update();
\r
906 for (joy = 0; joy < num_of_joys; joy++) {
\r
907 int keys = gp2x_usbjoy_check2(joy);
\r
908 for (i = 0; i < 32; i++) {
\r
909 if (keys & (1 << i)) {
\r
910 int acts = currentConfig.JoyBinds[joy][i];
\r
911 int pl = (acts >> 16) & 1;
\r
912 allActions[pl] |= acts;
\r
918 PicoPad[0] = (unsigned short) allActions[0];
\r
919 PicoPad[1] = (unsigned short) allActions[1];
\r
921 events = (allActions[0] | allActions[1]) >> 16;
\r
923 // volume is treated in special way and triggered every frame
\r
924 if(events & 0x6000) {
\r
925 int vol = currentConfig.volume;
\r
926 if (events & 0x2000) {
\r
927 if (vol < 90) vol++;
\r
929 if (vol > 0) vol--;
\r
931 gp2x_sound_volume(vol, vol);
\r
932 sprintf(noticeMsg, "VOL: %02i", vol);
\r
933 gettimeofday(¬iceMsgTime, 0);
\r
934 currentConfig.volume = vol;
\r
937 events &= ~prevEvents;
\r
938 if (events) RunEvents(events);
\r
939 if (movie_data) updateMovie();
\r
941 prevEvents = (allActions[0] | allActions[1]) >> 16;
\r
945 static void updateSound(int len)
\r
947 if (PicoOpt&8) len<<=1;
\r
949 gp2x_sound_write(PsndOut, len<<1);
\r
953 static void SkipFrame(int do_sound)
\r
955 void *sndbuff_tmp = 0;
\r
956 if (PsndOut && !do_sound) {
\r
957 sndbuff_tmp = PsndOut;
\r
965 if (sndbuff_tmp && !do_sound) {
\r
966 PsndOut = sndbuff_tmp;
\r
971 void emu_forced_frame(void)
\r
973 int po_old = PicoOpt;
\r
979 if (!(Pico.video.reg[12]&1)) {
\r
980 vidCpyM2 = vidCpyM2_32col;
\r
982 } else vidCpyM2 = vidCpyM2_40col;
\r
984 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);
\r
985 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
986 gp2x_video_setpalette(localPal, 0x40);
\r
989 static void simpleWait(int thissec, int lim_time)
\r
991 struct timeval tval;
\r
993 spend_cycles(1024);
\r
994 gettimeofday(&tval, 0);
\r
995 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
997 while(tval.tv_usec < lim_time)
\r
999 spend_cycles(1024);
\r
1000 gettimeofday(&tval, 0);
\r
1001 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1006 void emu_Loop(void)
\r
1008 static int gp2x_old_clock = 200;
\r
1009 static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;
\r
1010 char fpsbuff[24]; // fps count c string
\r
1011 struct timeval tval; // timing
\r
1012 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;
\r
1013 int target_fps, target_frametime, lim_time, i;
\r
1016 printf("entered emu_Loop()\n");
\r
1018 if (gp2x_old_clock != currentConfig.CPUclock) {
\r
1019 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
\r
1020 set_FCLK(currentConfig.CPUclock);
\r
1021 gp2x_old_clock = currentConfig.CPUclock;
\r
1022 printf(" done\n");
\r
1025 if (gp2x_old_gamma != currentConfig.gamma) {
\r
1026 set_gamma(currentConfig.gamma);
\r
1027 gp2x_old_gamma = currentConfig.gamma;
\r
1028 printf("updated gamma to %i\n", currentConfig.gamma);
\r
1033 // make sure we are in correct mode
\r
1035 Pico.m.dirtyPal = 1;
\r
1036 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
1039 // pal/ntsc might have changed, reset related stuff
\r
1040 target_fps = Pico.m.pal ? 50 : 60;
\r
1041 target_frametime = 1000000/target_fps;
\r
1044 // prepare sound stuff
\r
1045 if(currentConfig.EmuOpt & 4) {
\r
1046 int snd_excess_add;
\r
1047 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {
\r
1048 /* if 940 is turned off, we need it to be put back to sleep */
\r
1049 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {
\r
1055 //excess_samples = PsndRate - PsndLen*target_fps;
\r
1056 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
\r
1057 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n", PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
\r
1058 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);
\r
1059 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);
\r
1060 PicoWriteSound = updateSound;
\r
1061 memset(sndBuffer, 0, sizeof(sndBuffer));
\r
1062 PsndOut = sndBuffer;
\r
1063 PsndRate_old = PsndRate;
\r
1064 PsndLen_real = PsndLen;
\r
1065 PicoOpt_old = PicoOpt;
\r
1066 pal_old = Pico.m.pal;
\r
1072 while (engineState == PGS_Running)
\r
1076 gettimeofday(&tval, 0);
\r
1077 if(reset_timing) {
\r
1079 thissec = tval.tv_sec;
\r
1080 frames_shown = frames_done = tval.tv_usec/target_frametime;
\r
1083 // show notice message?
\r
1084 if(noticeMsgTime.tv_sec) {
\r
1085 static int noticeMsgSum;
\r
1086 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec
\r
1087 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;
\r
1091 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
\r
1092 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
\r
1093 notice = noticeMsg;
\r
1097 // check for mode changes
\r
1098 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
\r
1099 if (modes != oldmodes) {
\r
1101 osd_fps_x = OSD_FPS_X;
\r
1103 vidCpyM2 = vidCpyM2_40col;
\r
1105 if (PicoOpt & 0x100) {
\r
1106 vidCpyM2 = vidCpyM2_32col_nobord;
\r
1108 osd_fps_x = OSD_FPS_X - 64;
\r
1110 vidCpyM2 = vidCpyM2_32col;
\r
1113 gp2x_video_RGB_setscaling(scalex, 240);
\r
1118 // second changed?
\r
1119 if(thissec != tval.tv_sec) {
\r
1121 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
1122 if(++bench == 10) {
\r
1124 bench_fps_s = bench_fps;
\r
1125 bf[bfp++ & 3] = bench_fps;
\r
1128 bench_fps += frames_shown;
\r
1129 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
1131 if(currentConfig.EmuOpt & 2)
\r
1132 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
1134 thissec = tval.tv_sec;
\r
1136 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {
\r
1137 frames_done = frames_shown = 0;
\r
1139 // it is quite common for this implementation to leave 1 fame unfinished
\r
1140 // when second changes, but we don't want buffer to starve.
\r
1141 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {
\r
1143 SkipFrame(1); frames_done++;
\r
1146 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
\r
1147 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
\r
1148 if (frames_shown > frames_done) frames_shown = frames_done;
\r
1152 lim_time = (frames_done+1) * target_frametime;
\r
1153 if(currentConfig.Frameskip >= 0) { // frameskip enabled
\r
1154 for(i = 0; i < currentConfig.Frameskip; i++) {
\r
1156 SkipFrame(1); frames_done++;
\r
1157 if (PsndOut) { // do framelimitting if sound is enabled
\r
1158 gettimeofday(&tval, 0);
\r
1159 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1160 if(tval.tv_usec < lim_time) { // we are too fast
\r
1161 simpleWait(thissec, lim_time);
\r
1164 lim_time += target_frametime;
\r
1166 } else if(tval.tv_usec > lim_time) { // auto frameskip
\r
1167 // no time left for this frame - skip
\r
1169 SkipFrame(tval.tv_usec < lim_time+target_frametime); frames_done++;
\r
1177 if (Pico.m.frame_count == 31563) {
\r
1179 f = fopen("ram_p.bin", "wb");
\r
1180 if (!f) { printf("!f\n"); exit(1); }
\r
1181 fwrite(Pico.ram, 1, 0x10000, f);
\r
1189 #define BYTE unsigned char
\r
1190 #define WORD unsigned short
\r
1193 BYTE IDLength; /* 00h Size of Image ID field */
\r
1194 BYTE ColorMapType; /* 01h Color map type */
\r
1195 BYTE ImageType; /* 02h Image type code */
\r
1196 WORD CMapStart; /* 03h Color map origin */
\r
1197 WORD CMapLength; /* 05h Color map length */
\r
1198 BYTE CMapDepth; /* 07h Depth of color map entries */
\r
1199 WORD XOffset; /* 08h X origin of image */
\r
1200 WORD YOffset; /* 0Ah Y origin of image */
\r
1201 WORD Width; /* 0Ch Width of image */
\r
1202 WORD Height; /* 0Eh Height of image */
\r
1203 BYTE PixelDepth; /* 10h Image pixel size */
\r
1204 BYTE ImageDescriptor; /* 11h Image descriptor byte */
\r
1205 } __attribute__((packed)) TGAHEAD;
\r
1206 static unsigned short oldscr[320*240];
\r
1207 FILE *f; char name[128]; int i;
\r
1209 memset(&TGAHEAD, 0, sizeof(TGAHEAD));
\r
1210 TGAHEAD.ImageType = 2;
\r
1211 TGAHEAD.Width = 320;
\r
1212 TGAHEAD.Height = 240;
\r
1213 TGAHEAD.PixelDepth = 16;
\r
1214 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
\r
1216 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
\r
1218 for (i = 0; i < 320*240; i++)
\r
1219 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;
\r
1222 for (i = 0; i < 320*240; i++)
\r
1223 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);
\r
1224 sprintf(name, "%05i.tga", Pico.m.frame_count);
\r
1225 f = fopen(name, "wb");
\r
1226 if (!f) { printf("!f\n"); exit(1); }
\r
1227 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
\r
1228 fwrite(oldscr, 1, 320*240*2, f);
\r
1235 gettimeofday(&tval, 0);
\r
1236 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1238 // sleep if we are still too fast
\r
1239 if(PsndOut != 0 || currentConfig.Frameskip < 0)
\r
1241 // usleep sleeps for ~20ms minimum, so it is not a solution here
\r
1242 gettimeofday(&tval, 0);
\r
1243 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
1244 if(tval.tv_usec < lim_time)
\r
1246 // we are too fast
\r
1247 simpleWait(thissec, lim_time);
\r
1251 blit(fpsbuff, notice);
\r
1253 frames_done++; frames_shown++;
\r
1257 if((currentConfig.EmuOpt & 1) && SRam.changed) {
\r
1258 osd_text(4, 232, "Writing SRAM/BRAM..");
\r
1259 emu_SaveLoadGame(0, 1);
\r
1263 // if in 16bit mode, generate 8it image for menu background
\r
1264 if (!(PicoOpt&0x10) && (currentConfig.EmuOpt&0x80))
\r
1265 emu_forced_frame();
\r
1268 gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);
\r
1272 void emu_ResetGame(void)
\r
1279 size_t gzRead2(void *p, size_t _size, size_t _n, void *file)
\r
1281 return gzread(file, p, _n);
\r
1285 size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)
\r
1287 return gzwrite(file, p, _n);
\r
1290 static int try_ropen_file(const char *fname)
\r
1294 f = fopen(fname, "rb");
\r
1302 char *emu_GetSaveFName(int load, int is_sram, int slot)
\r
1304 static char saveFname[512];
\r
1309 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");
\r
1311 if (try_ropen_file(saveFname)) return saveFname;
\r
1312 // try in current dir..
\r
1313 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");
\r
1314 if (try_ropen_file(saveFname)) return saveFname;
\r
1315 return NULL; // give up
\r
1321 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
\r
1322 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");
\r
1324 romfname_ext(saveFname, "mds/", ext);
\r
1326 if (try_ropen_file(saveFname)) return saveFname;
\r
1327 romfname_ext(saveFname, NULL, ext);
\r
1328 if (try_ropen_file(saveFname)) return saveFname;
\r
1329 if (currentConfig.EmuOpt & 8) {
\r
1331 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
\r
1332 strcat(ext, ".mds");
\r
1334 romfname_ext(saveFname, "mds/", ext);
\r
1335 if (try_ropen_file(saveFname)) return saveFname;
\r
1336 romfname_ext(saveFname, NULL, ext);
\r
1337 if (try_ropen_file(saveFname)) return saveFname;
\r
1346 int emu_check_save_file(int slot)
\r
1348 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;
\r
1351 void emu_set_save_cbs(int gz)
\r
1354 areaRead = gzRead2;
\r
1355 areaWrite = gzWrite2;
\r
1356 areaEof = (areaeof *) gzeof;
\r
1357 areaSeek = (areaseek *) gzseek;
\r
1358 areaClose = (areaclose *) gzclose;
\r
1360 areaRead = (arearw *) fread;
\r
1361 areaWrite = (arearw *) fwrite;
\r
1362 areaEof = (areaeof *) feof;
\r
1363 areaSeek = (areaseek *) fseek;
\r
1364 areaClose = (areaclose *) fclose;
\r
1368 int emu_SaveLoadGame(int load, int sram)
\r
1373 // make save filename
\r
1374 saveFname = emu_GetSaveFName(load, sram, state_slot);
\r
1375 if (saveFname == NULL) {
\r
1377 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");
\r
1378 gettimeofday(¬iceMsgTime, 0);
\r
1383 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
\r
1388 unsigned char *sram_data;
\r
1390 sram_size = 0x2000;
\r
1391 sram_data = Pico_mcd->bram;
\r
1393 sram_size = SRam.end-SRam.start+1;
\r
1394 if(SRam.reg_back & 4) sram_size=0x2000;
\r
1395 sram_data = SRam.data;
\r
1397 if(!sram_data) return 0; // SRam forcefully disabled for this game
\r
1400 sramFile = fopen(saveFname, "rb");
\r
1401 if(!sramFile) return -1;
\r
1402 fread(sram_data, 1, sram_size, sramFile);
\r
1405 // sram save needs some special processing
\r
1406 // see if we have anything to save
\r
1407 for(; sram_size > 0; sram_size--)
\r
1408 if(sram_data[sram_size-1]) break;
\r
1411 sramFile = fopen(saveFname, "wb");
\r
1412 ret = fwrite(sram_data, 1, sram_size, sramFile);
\r
1413 ret = (ret != sram_size) ? -1 : 0;
\r
1422 void *PmovFile = NULL;
\r
1423 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {
\r
1424 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {
\r
1425 emu_set_save_cbs(1);
\r
1426 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);
\r
1431 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {
\r
1432 emu_set_save_cbs(0);
\r
1436 ret = PmovState(load ? 6 : 5, PmovFile);
\r
1437 areaClose(PmovFile);
\r
1439 if (!load) sync();
\r
1440 else Pico.m.dirtyPal=1;
\r
1444 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");
\r
1447 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");
\r
1451 gettimeofday(¬iceMsgTime, 0);
\r