bugfixes, refactoring
[picodrive.git] / platform / gp2x / emu.c
index c16b658..0375a7f 100644 (file)
@@ -1,4 +1,4 @@
-// (c) Copyright 2006 notaz, All rights reserved.\r
+// (c) Copyright 2006-2007 notaz, All rights reserved.\r
 // Free for non-commercial use.\r
 \r
 // For commercial use, separate licencing terms must be obtained.\r
 #include "gp2x.h"\r
 #include "usbjoy.h"\r
 #include "menu.h"\r
-#include "asmutils.h"\r
+#include "../common/arm_utils.h"\r
+#include "../common/fonts.h"\r
+#include "../common/emu.h"\r
+#include "../common/config.h"\r
 #include "cpuctrl.h"\r
 \r
 #include <Pico/PicoInt.h>\r
 #include <Pico/Patch.h>\r
+#include <Pico/sound/mix.h>\r
 #include <zlib/zlib.h>\r
 \r
+//#define PFRAMES\r
 \r
 #ifdef BENCHMARK\r
 #define OSD_FPS_X 220\r
 #define OSD_FPS_X 260\r
 #endif\r
 \r
-// PicoPad[] format: SACB RLDU\r
-char *actionNames[] = {\r
-       "UP", "DOWN", "LEFT", "RIGHT", "B", "C", "A", "START",\r
-       0, 0, 0, 0, 0, 0, 0, 0, // Z, Y, X, MODE (enabled only when needed), ?, ?, ?, ?\r
-       0, 0, 0, 0, 0, 0, 0, "ENTER MENU", // player2_flag, ?, ?, ?, ?, ?, ?, menu\r
-       "NEXT SAVE SLOT", "PREV SAVE SLOT", "SWITCH RENDERER", "SAVE STATE",\r
-       "LOAD STATE", "VOLUME UP", "VOLUME DOWN", "DONE"\r
-};\r
 \r
 int engineState;\r
 int select_exits = 0;\r
-char *PicoConfigFile = "picoconfig.bin";\r
-currentConfig_t currentConfig;\r
 \r
 char romFileName[PATH_MAX];\r
-unsigned char *rom_data = NULL;\r
 \r
 extern int crashed_940;\r
 \r
-static short sndBuffer[2*44100/50];\r
-static char noticeMsg[64];                                     // notice msg to draw\r
+static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
 static struct timeval noticeMsgTime = { 0, 0 };        // when started showing\r
 static int osd_fps_x;\r
-static int combo_keys = 0, combo_acts = 0;     // keys and actions which need button combos\r
 static int gp2x_old_gamma = 100;\r
-static unsigned char *movie_data = NULL;\r
-static int movie_size = 0;\r
-unsigned char *framebuff = 0;  // temporary buffer for alt renderer\r
-int state_slot = 0;\r
+char noticeMsg[64];                    // notice msg to draw\r
+unsigned char *PicoDraw2FB = NULL;  // temporary buffer for alt renderer\r
 int reset_timing = 0;\r
 \r
+static void emu_msg_cb(const char *msg);\r
+static void emu_msg_tray_open(void);\r
 \r
-// utilities\r
-static void strlwr(char* string)\r
-{\r
-       while ( (*string++ = (char)tolower(*string)) );\r
-}\r
-\r
-static int try_rfn_cut(void)\r
-{\r
-       FILE *tmp;\r
-       char *p;\r
-\r
-       p = romFileName + strlen(romFileName) - 1;\r
-       for (; p > romFileName; p--)\r
-               if (*p == '.') break;\r
-       *p = 0;\r
-\r
-       if((tmp = fopen(romFileName, "rb"))) {\r
-               fclose(tmp);\r
-               return 1;\r
-       }\r
-       return 0;\r
-}\r
-\r
-static void get_ext(char *file, char *ext)\r
-{\r
-       char *p;\r
-\r
-       p = file + strlen(file) - 4;\r
-       if (p < file) p = file;\r
-       strncpy(ext, p, 4);\r
-       ext[4] = 0;\r
-       strlwr(ext);\r
-}\r
-\r
-char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
-char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303",   "eu_mcd1_9210" };\r
-char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
-\r
-extern char **g_argv;\r
-\r
-int find_bios(int region, char **bios_file)\r
-{\r
-       static char bios_path[1024];\r
-       int i, j, count;\r
-       char **files;\r
-       FILE *f = NULL;\r
-\r
-       if (region == 4) { // US\r
-               files = biosfiles_us;\r
-               count = sizeof(biosfiles_us) / sizeof(char *);\r
-       } else if (region == 8) { // EU\r
-               files = biosfiles_eu;\r
-               count = sizeof(biosfiles_eu) / sizeof(char *);\r
-       } else if (region == 1 || region == 2) {\r
-               files = biosfiles_jp;\r
-               count = sizeof(biosfiles_jp) / sizeof(char *);\r
-       } else {\r
-               return 0;\r
-       }\r
-\r
-       for (i = 0; i < count; i++)\r
-       {\r
-               strncpy(bios_path, g_argv[0], 1023);\r
-               bios_path[1024-32] = 0;\r
-               for (j = strlen(bios_path); j > 0; j--)\r
-                       if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }\r
-               strcat(bios_path, files[i]);\r
-               strcat(bios_path, ".bin");\r
-               f = fopen(bios_path, "rb");\r
-               if (f) break;\r
-\r
-               bios_path[strlen(bios_path) - 4] = 0;\r
-               strcat(bios_path, ".zip");\r
-               f = fopen(bios_path, "rb");\r
-               if (f) break;\r
-       }\r
 \r
-       if (f) {\r
-               printf("using bios: %s\n", bios_path);\r
-               fclose(f);\r
-               if (bios_file) *bios_file = bios_path;\r
-               return 1;\r
-       } else {\r
-               sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
-                       region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
-               printf("%s\n", menuErrorMsg);\r
-               return 0;\r
-       }\r
-}\r
-\r
-/* checks if romFileName points to valid MegaCD image\r
- * if so, checks for suitable BIOS */\r
-int emu_cd_check(char **bios_file)\r
+void emu_noticeMsgUpdated(void)\r
 {\r
-       unsigned char buf[32];\r
-       pm_file *cd_f;\r
-       int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
-\r
-       cd_f = pm_open(romFileName);\r
-       if (!cd_f) return 0; // let the upper level handle this\r
-\r
-       if (pm_read(buf, 32, cd_f) != 32) {\r
-               pm_close(cd_f);\r
-               return 0;\r
-       }\r
-\r
-       if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1;       // Sega CD (ISO)\r
-       if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2;       // Sega CD (BIN)\r
-       if (type == 0) {\r
-               pm_close(cd_f);\r
-               return 0;\r
-       }\r
-\r
-       /* it seems we have a CD image here. Try to detect region now.. */\r
-       pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
-       pm_read(buf, 1, cd_f);\r
-       pm_close(cd_f);\r
-\r
-       if (buf[0] == 0x64) region = 8; // EU\r
-       if (buf[0] == 0xa1) region = 1; // JAP\r
-\r
-       printf("detected %s Sega/Mega CD image with %s region\n",\r
-               type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
-\r
-       if (PicoRegionOverride) {\r
-               region = PicoRegionOverride;\r
-               printf("overrided region to %s\n", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
-       }\r
-\r
-       if (bios_file == NULL) return type;\r
-\r
-       if (find_bios(region, bios_file))\r
-                return type;   // CD and BIOS detected\r
-\r
-       return -1;              // CD detected but load failed\r
+       gettimeofday(&noticeMsgTime, 0);\r
 }\r
 \r
-int emu_ReloadRom(void)\r
+void emu_getMainDir(char *dst, int len)\r
 {\r
-       unsigned int rom_size = 0;\r
-       char *used_rom_name = romFileName;\r
-       char ext[5];\r
-       pm_file *rom;\r
-       int ret, cd_state;\r
-\r
-       printf("emu_ReloadRom(%s)\n", romFileName);\r
-\r
-       get_ext(romFileName, ext);\r
-\r
-       // detect wrong extensions\r
-       if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
-               sprintf(menuErrorMsg, "Not a ROM selected.");\r
-               return 0;\r
-       }\r
-\r
-       PicoPatchUnload();\r
-\r
-       // check for movie file\r
-       if(movie_data) {\r
-               free(movie_data);\r
-               movie_data = 0;\r
-       }\r
-       if(!strcmp(ext, ".gmv")) {\r
-               // check for both gmv and rom\r
-               int dummy;\r
-               FILE *movie_file = fopen(romFileName, "rb");\r
-               if(!movie_file) {\r
-                       sprintf(menuErrorMsg, "Failed to open movie.");\r
-                       return 0;\r
-               }\r
-               fseek(movie_file, 0, SEEK_END);\r
-               movie_size = ftell(movie_file);\r
-               fseek(movie_file, 0, SEEK_SET);\r
-               if(movie_size < 64+3) {\r
-                       sprintf(menuErrorMsg, "Invalid GMV file.");\r
-                       fclose(movie_file);\r
-                       return 0;\r
-               }\r
-               movie_data = malloc(movie_size);\r
-               if(movie_data == NULL) {\r
-                       sprintf(menuErrorMsg, "low memory.");\r
-                       fclose(movie_file);\r
-                       return 0;\r
-               }\r
-               fread(movie_data, 1, movie_size, movie_file);\r
-               fclose(movie_file);\r
-               if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
-                       sprintf(menuErrorMsg, "Invalid GMV file.");\r
-                       return 0;\r
-               }\r
-               dummy = try_rfn_cut() || try_rfn_cut();\r
-               if (!dummy) {\r
-                       sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
-                       return 0;\r
-               }\r
-               get_ext(romFileName, ext);\r
-       }\r
-       else if (!strcmp(ext, ".pat")) {\r
-               int dummy;\r
-               PicoPatchLoad(romFileName);\r
-               dummy = try_rfn_cut() || try_rfn_cut();\r
-               if (!dummy) {\r
-                       sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
-                       return 0;\r
-               }\r
-               get_ext(romFileName, ext);\r
-       }\r
-\r
-       // check for MegaCD image\r
-       cd_state = emu_cd_check(&used_rom_name);\r
-       if (cd_state > 0) {\r
-               PicoMCD |= 1;\r
-               get_ext(used_rom_name, ext);\r
-       } else if (cd_state == -1) {\r
-               // bios_help() ?\r
-               return 0;\r
-       } else {\r
-               if (PicoMCD & 1) PicoExitMCD();\r
-               PicoMCD &= ~1;\r
-       }\r
-\r
-       rom = pm_open(used_rom_name);\r
-       if(!rom) {\r
-               sprintf(menuErrorMsg, "Failed to open rom.");\r
-               return 0;\r
-       }\r
-\r
-       if(rom_data) {\r
-               free(rom_data);\r
-               rom_data = 0;\r
-               rom_size = 0;\r
-       }\r
-\r
-       if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
-               sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
-               printf("%s\n", menuErrorMsg);\r
-               pm_close(rom);\r
-               return 0;\r
-       }\r
-       pm_close(rom);\r
-\r
-       // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
-       if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
-         ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
-               if (rom_data) free(rom_data);\r
-               rom_data = 0;\r
-               sprintf(menuErrorMsg, "Not a ROM selected.");\r
-               return 0;\r
-       }\r
-\r
-       // load config for this ROM (do this before insert to get correct region)\r
-       ret = emu_ReadConfig(1);\r
-       if (!ret)\r
-               emu_ReadConfig(0);\r
+       extern char **g_argv;\r
+       int j;\r
 \r
-       printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
-       if(PicoCartInsert(rom_data, rom_size)) {\r
-               sprintf(menuErrorMsg, "Failed to load ROM.");\r
-               return 0;\r
-       }\r
-\r
-       Pico.m.frame_count = 0;\r
-\r
-       // insert CD if it was detected\r
-       if (cd_state > 0) {\r
-               ret = Insert_CD(romFileName, cd_state == 2);\r
-               if (ret != 0) {\r
-                       sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
-                       printf("%s\n", menuErrorMsg);\r
-                       return 0;\r
-               }\r
-       }\r
-\r
-       // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
-       strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
-       currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
-\r
-       if (PicoPatches) {\r
-               PicoPatchPrepare();\r
-               PicoPatchApply();\r
-       }\r
-\r
-       // additional movie stuff\r
-       if(movie_data) {\r
-               if(movie_data[0x14] == '6')\r
-                    PicoOpt |=  0x20; // 6 button pad\r
-               else PicoOpt &= ~0x20;\r
-               PicoOpt |= 0x40; // accurate timing\r
-               if(movie_data[0xF] >= 'A') {\r
-                       if(movie_data[0x16] & 0x80) {\r
-                               PicoRegionOverride = 8;\r
-                       } else {\r
-                               PicoRegionOverride = 4;\r
-                       }\r
-                       PicoReset(0);\r
-                       // TODO: bits 6 & 5\r
-               }\r
-               movie_data[0x18+30] = 0;\r
-               sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
-       }\r
-       else\r
-       {\r
-               if(Pico.m.pal) {\r
-                       strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
-               } else {\r
-                       strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
-               }\r
-       }\r
-       gettimeofday(&noticeMsgTime, 0);\r
-\r
-       // load SRAM for this ROM\r
-       if(currentConfig.EmuOpt & 1)\r
-               emu_SaveLoadGame(1, 1);\r
-\r
-       return 1;\r
+       strncpy(dst, g_argv[0], len);\r
+       len -= 32; // reserve\r
+       if (len < 0) len = 0;\r
+       dst[len] = 0;\r
+       for (j = strlen(dst); j > 0; j--)\r
+               if (dst[j] == '/') { dst[j+1] = 0; break; }\r
 }\r
 \r
-\r
-static void emu_msg_cb(const char *msg);\r
-static void emu_msg_tray_open(void);\r
-\r
 void emu_Init(void)\r
 {\r
        // make temp buffer for alt renderer\r
-       framebuff = malloc((8+320)*(8+240+8));\r
-       if (!framebuff)\r
+       PicoDraw2FB = malloc((8+320)*(8+240+8));\r
+       if (!PicoDraw2FB)\r
        {\r
-               printf("framebuff == 0\n");\r
+               printf("PicoDraw2FB == 0\n");\r
        }\r
 \r
        // make dirs for saves, cfgs, etc.\r
@@ -407,56 +97,7 @@ void emu_Init(void)
 }\r
 \r
 \r
-static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
-{\r
-       char *p;\r
-       int prefix_len = 0;\r
-\r
-       // make save filename\r
-       for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
-       *dst = 0;\r
-       if (prefix) {\r
-               strcpy(dst, prefix);\r
-               prefix_len = strlen(prefix);\r
-       }\r
-       strncpy(dst + prefix_len, p, 511-prefix_len);\r
-       dst[511-8] = 0;\r
-       if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
-       if (ext) strcat(dst, ext);\r
-}\r
-\r
-\r
-static void find_combos(void)\r
-{\r
-       int act, u;\r
-\r
-       // find out which keys and actions are combos\r
-       combo_keys = combo_acts = 0;\r
-       for (act = 0; act < 32; act++)\r
-       {\r
-               int keyc = 0;\r
-               if (act == 16) continue; // player2 flag\r
-               for (u = 0; u < 32; u++)\r
-               {\r
-                       if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
-               }\r
-               if (keyc > 1)\r
-               {\r
-                       // loop again and mark those keys and actions as combo\r
-                       for (u = 0; u < 32; u++)\r
-                       {\r
-                               if (currentConfig.KeyBinds[u] & (1 << act)) {\r
-                                       combo_keys |= 1 << u;\r
-                                       combo_acts |= 1 << act;\r
-                               }\r
-                       }\r
-               }\r
-       }\r
-       // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
-}\r
-\r
-\r
-void scaling_update(void)\r
+static void scaling_update(void)\r
 {\r
        PicoOpt &= ~0x4100;\r
        switch (currentConfig.scaling) {\r
@@ -468,117 +109,6 @@ void scaling_update(void)
 }\r
 \r
 \r
-int emu_ReadConfig(int game)\r
-{\r
-       FILE *f;\r
-       char cfg[512];\r
-       int bread = 0;\r
-\r
-       if (!game)\r
-       {\r
-               // set default config\r
-               memset(&currentConfig, 0, sizeof(currentConfig));\r
-               currentConfig.lastRomFile[0] = 0;\r
-               currentConfig.EmuOpt  = 0x1f | 0x400; // | cd_leds\r
-               currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda\r
-               currentConfig.PsndRate = 22050; // 44100;\r
-               currentConfig.PicoRegion = 0; // auto\r
-               currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
-               currentConfig.Frameskip = -1; // auto\r
-               currentConfig.CPUclock = 200;\r
-               currentConfig.volume = 50;\r
-               currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
-               currentConfig.KeyBinds[ 4] = 1<<1;\r
-               currentConfig.KeyBinds[ 2] = 1<<2;\r
-               currentConfig.KeyBinds[ 6] = 1<<3;\r
-               currentConfig.KeyBinds[14] = 1<<4;\r
-               currentConfig.KeyBinds[13] = 1<<5;\r
-               currentConfig.KeyBinds[12] = 1<<6;\r
-               currentConfig.KeyBinds[ 8] = 1<<7;\r
-               currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
-               currentConfig.KeyBinds[10] = 1<<27; // save state\r
-               currentConfig.KeyBinds[11] = 1<<28; // load state\r
-               currentConfig.KeyBinds[23] = 1<<29; // vol up\r
-               currentConfig.KeyBinds[22] = 1<<30; // vol down\r
-               currentConfig.gamma = 100;\r
-               currentConfig.PicoCDBuffers = 64;\r
-               currentConfig.scaling = 0;\r
-               strncpy(cfg, PicoConfigFile, 511);\r
-               cfg[511] = 0;\r
-       } else {\r
-               romfname_ext(cfg, "cfg/", ".pbcfg");\r
-               f = fopen(cfg, "rb");\r
-               if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
-               else fclose(f);\r
-       }\r
-\r
-       printf("emu_ReadConfig: %s ", cfg);\r
-       f = fopen(cfg, "rb");\r
-       if (f) {\r
-               bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
-               fclose(f);\r
-       }\r
-       printf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
-\r
-       PicoOpt = currentConfig.PicoOpt;\r
-       PsndRate = currentConfig.PsndRate;\r
-       PicoRegionOverride = currentConfig.PicoRegion;\r
-       PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
-       PicoCDBuffers = currentConfig.PicoCDBuffers;\r
-       if (PicoOpt & 0x20) {\r
-               actionNames[ 8] = "Z"; actionNames[ 9] = "Y";\r
-               actionNames[10] = "X"; actionNames[11] = "MODE";\r
-       }\r
-       scaling_update();\r
-       // some sanity checks\r
-       if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
-       if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
-       if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
-       // if volume keys are unbound, bind them to volume control\r
-       if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
-               currentConfig.KeyBinds[23] = 1<<29; // vol up\r
-               currentConfig.KeyBinds[22] = 1<<30; // vol down\r
-       }\r
-\r
-       return (bread > 0); // == sizeof(currentConfig));\r
-}\r
-\r
-\r
-int emu_WriteConfig(int game)\r
-{\r
-       FILE *f;\r
-       char cfg[512];\r
-       int bwrite = 0;\r
-\r
-       if (!game)\r
-       {\r
-               strncpy(cfg, PicoConfigFile, 511);\r
-               cfg[511] = 0;\r
-       } else {\r
-               romfname_ext(cfg, "cfg/", ".pbcfg");\r
-       }\r
-\r
-       printf("emu_WriteConfig: %s ", cfg);\r
-       f = fopen(cfg, "wb");\r
-       if (f) {\r
-               currentConfig.PicoOpt = PicoOpt;\r
-               currentConfig.PsndRate = PsndRate;\r
-               currentConfig.PicoRegion = PicoRegionOverride;\r
-               currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
-               currentConfig.PicoCDBuffers = PicoCDBuffers;\r
-               bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
-               fflush(f);\r
-               fclose(f);\r
-#ifndef NO_SYNC\r
-               sync();\r
-#endif\r
-       }\r
-       printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
-\r
-       return (bwrite == sizeof(currentConfig));\r
-}\r
-\r
-\r
 void emu_Deinit(void)\r
 {\r
        // save SRAM\r
@@ -588,32 +118,60 @@ void emu_Deinit(void)
        }\r
 \r
        if (!(currentConfig.EmuOpt & 0x20)) {\r
-               FILE *f = fopen(PicoConfigFile, "r+b");\r
-               if (!f) emu_WriteConfig(0);\r
-               else {\r
-                       // if we already have config, reload it, except last ROM\r
-                       fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);\r
-                       fread(&currentConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);\r
-                       fseek(f, 0, SEEK_SET);\r
-                       fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
-                       fflush(f);\r
-                       fclose(f);\r
+               config_writelrom(PicoConfigFile);\r
 #ifndef NO_SYNC\r
-                       sync();\r
+               sync();\r
 #endif\r
-               }\r
        }\r
 \r
-       free(framebuff);\r
+       free(PicoDraw2FB);\r
 \r
        PicoExit();\r
 \r
        // restore gamma\r
        if (gp2x_old_gamma != 100)\r
-               set_gamma(100);\r
+               set_gamma(100, 0);\r
+}\r
+\r
+void emu_prepareDefaultConfig(void)\r
+{\r
+       memset(&defaultConfig, 0, sizeof(defaultConfig));\r
+       defaultConfig.EmuOpt    = 0x1d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds\r
+       defaultConfig.s_PicoOpt = 0x0f | 0x20e00; // | <- use_940, cd_pcm, cd_cdda, svp drc\r
+       defaultConfig.s_PsndRate = 44100;\r
+       defaultConfig.s_PicoRegion = 0; // auto\r
+       defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
+       defaultConfig.s_PicoCDBuffers = 64;\r
+       defaultConfig.Frameskip = -1; // auto\r
+       defaultConfig.CPUclock = 200;\r
+       defaultConfig.volume = 50;\r
+       defaultConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
+       defaultConfig.KeyBinds[ 4] = 1<<1;\r
+       defaultConfig.KeyBinds[ 2] = 1<<2;\r
+       defaultConfig.KeyBinds[ 6] = 1<<3;\r
+       defaultConfig.KeyBinds[14] = 1<<4;\r
+       defaultConfig.KeyBinds[13] = 1<<5;\r
+       defaultConfig.KeyBinds[12] = 1<<6;\r
+       defaultConfig.KeyBinds[ 8] = 1<<7;\r
+       defaultConfig.KeyBinds[15] = 1<<26; // switch rend\r
+       defaultConfig.KeyBinds[10] = 1<<27; // save state\r
+       defaultConfig.KeyBinds[11] = 1<<28; // load state\r
+       defaultConfig.KeyBinds[23] = 1<<29; // vol up\r
+       defaultConfig.KeyBinds[22] = 1<<30; // vol down\r
+       defaultConfig.gamma = 100;\r
+       defaultConfig.scaling = 0;\r
+}\r
+\r
+void emu_setDefaultConfig(void)\r
+{\r
+       memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
+       PicoOpt = currentConfig.s_PicoOpt;\r
+       PsndRate = currentConfig.s_PsndRate;\r
+       PicoRegionOverride = currentConfig.s_PicoRegion;\r
+       PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
+       PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
 }\r
 \r
-\r
 void osd_text(int x, int y, const char *text)\r
 {\r
        int len = strlen(text)*8;\r
@@ -626,7 +184,7 @@ void osd_text(int x, int y, const char *text)
                        p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
                        for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
                }\r
-               gp2x_text_out8_2(x, y, text, 0xf0);\r
+               emu_textOut8(x, y, text);\r
        } else {\r
                int *p, i, h;\r
                x &= ~1; // align x\r
@@ -635,16 +193,15 @@ void osd_text(int x, int y, const char *text)
                        p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
                        for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
                }\r
-               gp2x_text_out15(x, y, text);\r
+               emu_textOut16(x, y, text);\r
        }\r
 }\r
 \r
 static void cd_leds(void)\r
 {\r
-       // mmu problems?\r
 //     static\r
        int old_reg;\r
-//     if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
+//     if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
        old_reg = Pico_mcd->s68k_regs[0];\r
 \r
        if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
@@ -664,7 +221,7 @@ static void cd_leds(void)
                unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
                *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
                *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
-               *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
+               *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
        }\r
 }\r
 \r
@@ -691,7 +248,8 @@ static void blit(const char *fps, const char *notice)
 {\r
        int emu_opt = currentConfig.EmuOpt;\r
 \r
-       if (PicoOpt&0x10) {\r
+       if (PicoOpt&0x10)\r
+       {\r
                // 8bit fast renderer\r
                if (Pico.m.dirtyPal) {\r
                        Pico.m.dirtyPal = 0;\r
@@ -699,8 +257,14 @@ static void blit(const char *fps, const char *notice)
                        // feed new palette to our device\r
                        gp2x_video_setpalette(localPal, 0x40);\r
                }\r
-               vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
-       } else if (!(emu_opt&0x80)) {\r
+               // a hack for VR\r
+               if (PicoRead16Hook == PicoSVPRead16)\r
+                       memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
+               // do actual copy\r
+               vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
+       }\r
+       else if (!(emu_opt&0x80))\r
+       {\r
                // 8bit accurate renderer\r
                if (Pico.m.dirtyPal) {\r
                        Pico.m.dirtyPal = 0;\r
@@ -773,7 +337,7 @@ static void vidResetMode(void)
        if (PicoOpt&0x10) {\r
                gp2x_video_changemode(8);\r
        } else if (currentConfig.EmuOpt&0x80) {\r
-               gp2x_video_changemode(15);\r
+               gp2x_video_changemode(16);\r
                PicoDrawSetColorFormat(1);\r
                PicoScan = EmuScan16;\r
                PicoScan(0, 0);\r
@@ -833,13 +397,75 @@ static void emu_msg_tray_open(void)
        gettimeofday(&noticeMsgTime, 0);\r
 }\r
 \r
+static void update_volume(int has_changed, int is_up)\r
+{\r
+       static int prev_frame = 0, wait_frames = 0;\r
+       int vol = currentConfig.volume;\r
+\r
+       if (has_changed)\r
+       {\r
+               if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
+                       wait_frames++;\r
+               else {\r
+                       if (is_up) {\r
+                               if (vol < 99) vol++;\r
+                       } else {\r
+                               if (vol >  0) vol--;\r
+                       }\r
+                       wait_frames = 0;\r
+                       gp2x_sound_volume(vol, vol);\r
+                       currentConfig.volume = vol;\r
+               }\r
+               sprintf(noticeMsg, "VOL: %02i", vol);\r
+               gettimeofday(&noticeMsgTime, 0);\r
+               prev_frame = Pico.m.frame_count;\r
+       }\r
+\r
+       // set the right mixer func\r
+       if (!(PicoOpt&8)) return; // just use defaults for mono\r
+       if (vol >= 5)\r
+               PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
+       else {\r
+               mix_32_to_16l_level = 5 - vol;\r
+               PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
+       }\r
+}\r
+\r
+static void change_fast_forward(int set_on)\r
+{\r
+       static void *set_PsndOut = NULL;\r
+       static int set_Frameskip, set_EmuOpt, is_on = 0;\r
+\r
+       if (set_on && !is_on) {\r
+               set_PsndOut = PsndOut;\r
+               set_Frameskip = currentConfig.Frameskip;\r
+               set_EmuOpt = currentConfig.EmuOpt;\r
+               PsndOut = NULL;\r
+               currentConfig.Frameskip = 8;\r
+               currentConfig.EmuOpt &= ~4;\r
+               is_on = 1;\r
+       }\r
+       else if (!set_on && is_on) {\r
+               PsndOut = set_PsndOut;\r
+               currentConfig.Frameskip = set_Frameskip;\r
+               currentConfig.EmuOpt = set_EmuOpt;\r
+               PsndRerate(1);\r
+               update_volume(0, 0);\r
+               reset_timing = 1;\r
+               is_on = 0;\r
+       }\r
+}\r
+\r
 static void RunEvents(unsigned int which)\r
 {\r
-       if(which & 0x1800) { // save or load (but not both)\r
+       if (which & 0x1800) // save or load (but not both)\r
+       {\r
                int do_it = 1;\r
-               if (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200) && emu_check_save_file(state_slot)) {\r
+               if ( emu_checkSaveFile(state_slot) &&\r
+                               (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) ||   // load\r
+                                (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
                        unsigned long keys;\r
-                       blit("", "OVERWRITE SAVE? (Y=yes, X=no)");\r
+                       blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
                        while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
                                usleep(50*1024);\r
                        if (keys & GP2X_X) do_it = 0;\r
@@ -855,7 +481,8 @@ static void RunEvents(unsigned int which)
 \r
                reset_timing = 1;\r
        }\r
-       if(which & 0x0400) { // switch renderer\r
+       if (which & 0x0400) // switch renderer\r
+       {\r
                if      (  PicoOpt&0x10)             { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
                else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
                else   currentConfig.EmuOpt &= ~0x80;\r
@@ -872,7 +499,8 @@ static void RunEvents(unsigned int which)
 \r
                gettimeofday(&noticeMsgTime, 0);\r
        }\r
-       if(which & 0x0300) {\r
+       if (which & 0x0300)\r
+       {\r
                if(which&0x0200) {\r
                        state_slot -= 1;\r
                        if(state_slot < 0) state_slot = 9;\r
@@ -880,44 +508,15 @@ static void RunEvents(unsigned int which)
                        state_slot += 1;\r
                        if(state_slot > 9) state_slot = 0;\r
                }\r
-               sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
+               sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
                gettimeofday(&noticeMsgTime, 0);\r
        }\r
-       if(which & 0x0080) {\r
+       if (which & 0x0080) {\r
                engineState = PGS_Menu;\r
        }\r
 }\r
 \r
 \r
-static void updateMovie(void)\r
-{\r
-       int offs = Pico.m.frame_count*3 + 0x40;\r
-       if (offs+3 > movie_size) {\r
-               free(movie_data);\r
-               movie_data = 0;\r
-               strcpy(noticeMsg, "END OF MOVIE.");\r
-               printf("END OF MOVIE.\n");\r
-               gettimeofday(&noticeMsgTime, 0);\r
-       } else {\r
-               // MXYZ SACB RLDU\r
-               PicoPad[0] = ~movie_data[offs]   & 0x8f; // ! SCBA RLDU\r
-               if(!(movie_data[offs]   & 0x10)) PicoPad[0] |= 0x40; // A\r
-               if(!(movie_data[offs]   & 0x20)) PicoPad[0] |= 0x10; // B\r
-               if(!(movie_data[offs]   & 0x40)) PicoPad[0] |= 0x20; // A\r
-               PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
-               if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
-               if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
-               if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
-               PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
-               if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
-               if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
-               PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
-               if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
-               if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
-       }\r
-}\r
-\r
-\r
 static void updateKeys(void)\r
 {\r
        unsigned long keys, allActions[2] = { 0, 0 }, events;\r
@@ -935,23 +534,26 @@ static void updateKeys(void)
 \r
        for (i = 0; i < 32; i++)\r
        {\r
-               if (keys & (1 << i)) {\r
+               if (keys & (1 << i))\r
+               {\r
                        int pl, acts = currentConfig.KeyBinds[i];\r
                        if (!acts) continue;\r
                        pl = (acts >> 16) & 1;\r
-                       if (combo_keys & (1 << i)) {\r
-                               int u = i+1, acts_c = acts & combo_acts;\r
+                       if (kb_combo_keys & (1 << i))\r
+                       {\r
+                               int u, acts_c = acts & kb_combo_acts;\r
                                // let's try to find the other one\r
-                               if (acts_c)\r
-                                       for (; u < 32; u++)\r
-                                               if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
-                                                       allActions[pl] |= acts_c;\r
+                               if (acts_c) {\r
+                                       for (u = i + 1; u < 32; u++)\r
+                                               if ( (keys & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {\r
+                                                       allActions[pl] |= acts_c & currentConfig.KeyBinds[u];\r
                                                        keys &= ~((1 << i) | (1 << u));\r
                                                        break;\r
                                                }\r
+                               }\r
                                // add non-combo actions if combo ones were not found\r
                                if (!acts_c || u == 32)\r
-                                       allActions[pl] |= acts & ~combo_acts;\r
+                                       allActions[pl] |= acts & ~kb_combo_acts;\r
                        } else {\r
                                allActions[pl] |= acts;\r
                        }\r
@@ -980,22 +582,15 @@ static void updateKeys(void)
        events = (allActions[0] | allActions[1]) >> 16;\r
 \r
        // volume is treated in special way and triggered every frame\r
-       if(events & 0x6000) {\r
-               int vol = currentConfig.volume;\r
-               if (events & 0x2000) {\r
-                       if (vol < 99) vol++;\r
-               } else {\r
-                       if (vol >  0) vol--;\r
-               }\r
-               gp2x_sound_volume(vol, vol);\r
-               sprintf(noticeMsg, "VOL: %02i", vol);\r
-               gettimeofday(&noticeMsgTime, 0);\r
-               currentConfig.volume = vol;\r
-       }\r
+       if (events & 0x6000)\r
+               update_volume(1, events & 0x2000);\r
+\r
+       if ((events ^ prevEvents) & 0x40)\r
+               change_fast_forward(events & 0x40);\r
 \r
        events &= ~prevEvents;\r
        if (events) RunEvents(events);\r
-       if (movie_data) updateMovie();\r
+       if (movie_data) emu_updateMovie();\r
 \r
        prevEvents = (allActions[0] | allActions[1]) >> 16;\r
 }\r
@@ -1019,23 +614,34 @@ static void SkipFrame(int do_audio)
 }\r
 \r
 \r
-void emu_forced_frame(void)\r
+void emu_forcedFrame(void)\r
 {\r
        int po_old = PicoOpt;\r
+       int eo_old = currentConfig.EmuOpt;\r
 \r
-       PicoOpt |= 0x10;\r
-       PicoFrameFull();\r
+       PicoOpt &= ~0x0010;\r
+       PicoOpt |=  0x4080; // soft_scale | acc_sprites\r
+       currentConfig.EmuOpt |= 0x80;\r
+\r
+       //vidResetMode();\r
+       PicoDrawSetColorFormat(1);\r
+       PicoScan = EmuScan16;\r
+       PicoScan(0, 0);\r
+       Pico.m.dirtyPal = 1;\r
+       PicoFrameDrawOnly();\r
 \r
+/*\r
        if (!(Pico.video.reg[12]&1)) {\r
                vidCpyM2 = vidCpyM2_32col;\r
                clearArea(1);\r
        } else  vidCpyM2 = vidCpyM2_40col;\r
 \r
-       vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
+       vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
        vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
        gp2x_video_setpalette(localPal, 0x40);\r
-\r
+*/\r
        PicoOpt = po_old;\r
+       currentConfig.EmuOpt = eo_old;\r
 }\r
 \r
 static void simpleWait(int thissec, int lim_time)\r
@@ -1058,11 +664,11 @@ static void simpleWait(int thissec, int lim_time)
 void emu_Loop(void)\r
 {\r
        static int gp2x_old_clock = 200;\r
-       static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
+       static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;\r
        char fpsbuff[24]; // fps count c string\r
        struct timeval tval; // timing\r
        int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
-       int target_fps, target_frametime, lim_time, i;\r
+       int target_fps, target_frametime, lim_time, vsync_offset, i;\r
        char *notice = 0;\r
 \r
        printf("entered emu_Loop()\n");\r
@@ -1074,19 +680,27 @@ void emu_Loop(void)
                printf(" done\n");\r
        }\r
 \r
-       if (gp2x_old_gamma != currentConfig.gamma) {\r
-               set_gamma(currentConfig.gamma);\r
+       if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
+               set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
                gp2x_old_gamma = currentConfig.gamma;\r
-               printf("updated gamma to %i\n", currentConfig.gamma);\r
+               printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
+       }\r
+\r
+       if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
+               if (currentConfig.EmuOpt&0x2000)\r
+                    set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
+               else unset_LCD_custom_rate();\r
        }\r
 \r
+       EmuOpt_old = currentConfig.EmuOpt;\r
        fpsbuff[0] = 0;\r
 \r
        // make sure we are in correct mode\r
        vidResetMode();\r
+       scaling_update();\r
        Pico.m.dirtyPal = 1;\r
        oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
-       find_combos();\r
+       emu_findKeyBindCombos();\r
 \r
        // pal/ntsc might have changed, reset related stuff\r
        target_fps = Pico.m.pal ? 50 : 60;\r
@@ -1094,49 +708,60 @@ void emu_Loop(void)
        reset_timing = 1;\r
 \r
        // prepare sound stuff\r
-       if(currentConfig.EmuOpt & 4) {\r
+       if (currentConfig.EmuOpt & 4)\r
+       {\r
                int snd_excess_add;\r
-               if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
-                       /* if 940 is turned off, we need it to be put back to sleep */\r
-                       if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
-                               Reset940(1, 2);\r
-                               Pause940(1);\r
-                       }\r
-                       sound_rerate(1);\r
+               if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
+                               ((PicoOpt&0x200) && crashed_940)) {\r
+                       PsndRerate(Pico.m.frame_count ? 1 : 0);\r
                }\r
-               //excess_samples = PsndRate - PsndLen*target_fps;\r
                snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
-               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
+               printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
+                       PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
                gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
                gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
                PicoWriteSound = updateSound;\r
+               update_volume(0, 0);\r
                memset(sndBuffer, 0, sizeof(sndBuffer));\r
                PsndOut = sndBuffer;\r
                PsndRate_old = PsndRate;\r
-               PsndLen_real = PsndLen;\r
                PicoOpt_old  = PicoOpt;\r
                pal_old = Pico.m.pal;\r
        } else {\r
-               PsndOut = 0;\r
+               PsndOut = NULL;\r
        }\r
 \r
        // prepare CD buffer\r
        if (PicoMCD & 1) PicoCDBufferInit();\r
 \r
+       // calc vsync offset to sync timing code with vsync\r
+       if (currentConfig.EmuOpt&0x2000) {\r
+               gettimeofday(&tval, 0);\r
+               gp2x_video_wait_vsync();\r
+               gettimeofday(&tval, 0);\r
+               vsync_offset = tval.tv_usec;\r
+               while (vsync_offset >= target_frametime)\r
+                       vsync_offset -= target_frametime;\r
+               if (!vsync_offset) vsync_offset++;\r
+               printf("vsync_offset: %i\n", vsync_offset);\r
+       } else\r
+               vsync_offset = 0;\r
+\r
        // loop?\r
        while (engineState == PGS_Running)\r
        {\r
                int modes;\r
 \r
                gettimeofday(&tval, 0);\r
-               if(reset_timing) {\r
+               if (reset_timing) {\r
                        reset_timing = 0;\r
                        thissec = tval.tv_sec;\r
                        frames_shown = frames_done = tval.tv_usec/target_frametime;\r
                }\r
 \r
                // show notice message?\r
-               if(noticeMsgTime.tv_sec) {\r
+               if (noticeMsgTime.tv_sec)\r
+               {\r
                        static int noticeMsgSum;\r
                        if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
                                noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
@@ -1151,7 +776,8 @@ void emu_Loop(void)
 \r
                // check for mode changes\r
                modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
-               if (modes != oldmodes) {\r
+               if (modes != oldmodes)\r
+               {\r
                        int scalex = 320;\r
                        osd_fps_x = OSD_FPS_X;\r
                        if (modes & 4) {\r
@@ -1173,10 +799,11 @@ void emu_Loop(void)
                }\r
 \r
                // second changed?\r
-               if(thissec != tval.tv_sec) {\r
+               if (thissec != tval.tv_sec)\r
+               {\r
 #ifdef BENCHMARK\r
                        static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
-                       if(++bench == 10) {\r
+                       if (++bench == 10) {\r
                                bench = 0;\r
                                bench_fps_s = bench_fps;\r
                                bf[bfp++ & 3] = bench_fps;\r
@@ -1185,12 +812,13 @@ void emu_Loop(void)
                        bench_fps += frames_shown;\r
                        sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
 #else\r
-                       if(currentConfig.EmuOpt & 2)\r
+                       if (currentConfig.EmuOpt & 2)\r
                                sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
+                       if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
 #endif\r
                        thissec = tval.tv_sec;\r
 \r
-                       if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
+                       if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
                                frames_done = frames_shown = 0;\r
                        } else {\r
                                // it is quite common for this implementation to leave 1 fame unfinished\r
@@ -1205,15 +833,16 @@ void emu_Loop(void)
                                if (frames_shown > frames_done) frames_shown = frames_done;\r
                        }\r
                }\r
-#if 0\r
-               sprintf(fpsbuff, "%05i", Pico.m.frame_count);\r
+#ifdef PFRAMES\r
+               sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
 #endif\r
-               lim_time = (frames_done+1) * target_frametime;\r
+\r
+               lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
                if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
                        for(i = 0; i < currentConfig.Frameskip; i++) {\r
                                updateKeys();\r
                                SkipFrame(1); frames_done++;\r
-                               if (PsndOut) { // do framelimitting if sound is enabled\r
+                               if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
                                        gettimeofday(&tval, 0);\r
                                        if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
                                        if(tval.tv_usec < lim_time) { // we are too fast\r
@@ -1224,7 +853,7 @@ void emu_Loop(void)
                        }\r
                } else if(tval.tv_usec > lim_time) { // auto frameskip\r
                        // no time left for this frame - skip\r
-                       if (tval.tv_usec - lim_time >= 0x300000) {\r
+                       if (tval.tv_usec - lim_time >= 300000) {\r
                                /* something caused a slowdown for us (disk access? cache flush?)\r
                                 * try to recover by resetting timing... */\r
                                reset_timing = 1;\r
@@ -1300,16 +929,22 @@ if (Pico.m.frame_count == 31563) {
                gettimeofday(&tval, 0);\r
                if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
 \r
-               if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 0x300000) // slowdown detection\r
+               if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
                        reset_timing = 1;\r
                else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
                {\r
-                       // sleep if we are still too fast\r
+                       // sleep or vsync if we are still too fast\r
                        // usleep sleeps for ~20ms minimum, so it is not a solution here\r
-                       if(tval.tv_usec < lim_time)\r
+                       if (!reset_timing && tval.tv_usec < lim_time)\r
                        {\r
                                // we are too fast\r
-                               simpleWait(thissec, lim_time);\r
+                               if (vsync_offset) {\r
+                                       if (lim_time - tval.tv_usec > target_frametime/2)\r
+                                               simpleWait(thissec, lim_time - target_frametime/4);\r
+                                       gp2x_video_wait_vsync();\r
+                               } else {\r
+                                       simpleWait(thissec, lim_time);\r
+                               }\r
                        }\r
                }\r
 \r
@@ -1318,22 +953,20 @@ if (Pico.m.frame_count == 31563) {
                frames_done++; frames_shown++;\r
        }\r
 \r
+       change_fast_forward(0);\r
 \r
        if (PicoMCD & 1) PicoCDBufferFree();\r
 \r
        // save SRAM\r
        if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
-               osd_text(4, 232, "Writing SRAM/BRAM..");\r
+               emu_state_cb("Writing SRAM/BRAM..");\r
                emu_SaveLoadGame(0, 1);\r
                SRam.changed = 0;\r
        }\r
 \r
-       // if in 16bit mode, generate 8it image for menu background\r
-       if (!(PicoOpt&0x10) && (currentConfig.EmuOpt&0x80))\r
-               emu_forced_frame();\r
-\r
-       // for menu bg\r
-       gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);\r
+       // if in 8bit mode, generate 16bit image for menu background\r
+       if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
+               emu_forcedFrame();\r
 }\r
 \r
 \r
@@ -1344,183 +977,3 @@ void emu_ResetGame(void)
 }\r
 \r
 \r
-size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
-{\r
-       return gzread(file, p, _n);\r
-}\r
-\r
-\r
-size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
-{\r
-       return gzwrite(file, p, _n);\r
-}\r
-\r
-static int try_ropen_file(const char *fname)\r
-{\r
-       FILE *f;\r
-\r
-       f = fopen(fname, "rb");\r
-       if (f) {\r
-               fclose(f);\r
-               return 1;\r
-       }\r
-       return 0;\r
-}\r
-\r
-char *emu_GetSaveFName(int load, int is_sram, int slot)\r
-{\r
-       static char saveFname[512];\r
-       char ext[16];\r
-\r
-       if (is_sram)\r
-       {\r
-               romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
-               if (load) {\r
-                       if (try_ropen_file(saveFname)) return saveFname;\r
-                       // try in current dir..\r
-                       romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
-                       if (try_ropen_file(saveFname)) return saveFname;\r
-                       return NULL; // give up\r
-               }\r
-       }\r
-       else\r
-       {\r
-               ext[0] = 0;\r
-               if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
-               strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
-\r
-               romfname_ext(saveFname, "mds/", ext);\r
-               if (load) {\r
-                       if (try_ropen_file(saveFname)) return saveFname;\r
-                       romfname_ext(saveFname, NULL, ext);\r
-                       if (try_ropen_file(saveFname)) return saveFname;\r
-                       if (currentConfig.EmuOpt & 8) {\r
-                               ext[0] = 0;\r
-                               if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
-                               strcat(ext, ".mds");\r
-\r
-                               romfname_ext(saveFname, "mds/", ext);\r
-                               if (try_ropen_file(saveFname)) return saveFname;\r
-                               romfname_ext(saveFname, NULL, ext);\r
-                               if (try_ropen_file(saveFname)) return saveFname;\r
-                       }\r
-                       return NULL;\r
-               }\r
-       }\r
-\r
-       return saveFname;\r
-}\r
-\r
-int emu_check_save_file(int slot)\r
-{\r
-       return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
-}\r
-\r
-void emu_set_save_cbs(int gz)\r
-{\r
-       if (gz) {\r
-               areaRead  = gzRead2;\r
-               areaWrite = gzWrite2;\r
-               areaEof   = (areaeof *) gzeof;\r
-               areaSeek  = (areaseek *) gzseek;\r
-               areaClose = (areaclose *) gzclose;\r
-       } else {\r
-               areaRead  = (arearw *) fread;\r
-               areaWrite = (arearw *) fwrite;\r
-               areaEof   = (areaeof *) feof;\r
-               areaSeek  = (areaseek *) fseek;\r
-               areaClose = (areaclose *) fclose;\r
-       }\r
-}\r
-\r
-int emu_SaveLoadGame(int load, int sram)\r
-{\r
-       int ret = 0;\r
-       char *saveFname;\r
-\r
-       // make save filename\r
-       saveFname = emu_GetSaveFName(load, sram, state_slot);\r
-       if (saveFname == NULL) {\r
-               if (!sram) {\r
-                       strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED  ");\r
-                       gettimeofday(&noticeMsgTime, 0);\r
-               }\r
-               return -1;\r
-       }\r
-\r
-       printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
-\r
-       if(sram) {\r
-               FILE *sramFile;\r
-               int sram_size;\r
-               unsigned char *sram_data;\r
-               if (PicoMCD&1) {\r
-                       sram_size = 0x2000;\r
-                       sram_data = Pico_mcd->bram;\r
-               } else {\r
-                       sram_size = SRam.end-SRam.start+1;\r
-                       if(SRam.reg_back & 4) sram_size=0x2000;\r
-                       sram_data = SRam.data;\r
-               }\r
-               if(!sram_data) return 0; // SRam forcefully disabled for this game\r
-\r
-               if(load) {\r
-                       sramFile = fopen(saveFname, "rb");\r
-                       if(!sramFile) return -1;\r
-                       fread(sram_data, 1, sram_size, sramFile);\r
-                       fclose(sramFile);\r
-               } else {\r
-                       // sram save needs some special processing\r
-                       // see if we have anything to save\r
-                       for(; sram_size > 0; sram_size--)\r
-                               if(sram_data[sram_size-1]) break;\r
-\r
-                       if(sram_size) {\r
-                               sramFile = fopen(saveFname, "wb");\r
-                               ret = fwrite(sram_data, 1, sram_size, sramFile);\r
-                               ret = (ret != sram_size) ? -1 : 0;\r
-                               fclose(sramFile);\r
-#ifndef NO_SYNC\r
-                               sync();\r
-#endif\r
-                       }\r
-               }\r
-               return ret;\r
-       }\r
-       else\r
-       {\r
-               void *PmovFile = NULL;\r
-               if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
-                       if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
-                               emu_set_save_cbs(1);\r
-                               if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
-                       }\r
-               }\r
-               else\r
-               {\r
-                       if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
-                               emu_set_save_cbs(0);\r
-                       }\r
-               }\r
-               if(PmovFile) {\r
-                       ret = PmovState(load ? 6 : 5, PmovFile);\r
-                       areaClose(PmovFile);\r
-                       PmovFile = 0;\r
-                       if (load) Pico.m.dirtyPal=1;\r
-#ifndef NO_SYNC\r
-                       else sync();\r
-#endif\r
-               }\r
-               else    ret = -1;\r
-               if (!ret)\r
-                       strcpy(noticeMsg, load ? "GAME LOADED  " : "GAME SAVED   ");\r
-               else\r
-               {\r
-                       strcpy(noticeMsg, load ? "LOAD FAILED  " : "SAVE FAILED  ");\r
-                       ret = -1;\r
-               }\r
-\r
-               gettimeofday(&noticeMsgTime, 0);\r
-               return ret;\r
-       }\r
-}\r