X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=common%2Femu.c;h=08dbe0bcf3f65dbfb22fb742edcecf59861cf165;hb=85bd209c99d9c50e99a2ba0a797f68c7b546d96a;hp=c5686fddf41947d1996223787dd966620df7a709;hpb=8e77275edade55d89b0723a60ab4ef1e2ec288de;p=libpicofe.git diff --git a/common/emu.c b/common/emu.c index c5686fd..08dbe0b 100644 --- a/common/emu.c +++ b/common/emu.c @@ -1,10 +1,11 @@ -// (c) Copyright 2006-2007 notaz, All rights reserved. +// (c) Copyright 2006-2009 notaz, All rights reserved. // Free for non-commercial use. // For commercial use, separate licencing terms must be obtained. #include #include +#include #ifndef NO_SYNC #include #endif @@ -21,9 +22,10 @@ #include #include #include -#include +#define STATUS_MSG_TIMEOUT 2000 + void *g_screen_ptr; #if !SCREEN_SIZE_FIXED @@ -44,6 +46,8 @@ char rom_fname_reload[512] = { 0, }; char rom_fname_loaded[512] = { 0, }; int rom_loaded = 0; int reset_timing = 0; +static unsigned int notice_msg_time; /* when started showing */ +static char noticeMsg[40]; unsigned char *movie_data = NULL; static int movie_size = 0; @@ -75,9 +79,9 @@ static int try_rfn_cut(char *fname) return 0; } -static void get_ext(char *file, char *ext) +static void get_ext(const char *file, char *ext) { - char *p; + const char *p; p = file + strlen(file) - 4; if (p < file) p = file; @@ -86,15 +90,32 @@ static void get_ext(char *file, char *ext) strlwr_(ext); } -static const char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" }; -static const char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" }; -static const char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" }; +void emu_status_msg(const char *format, ...) +{ + va_list vl; + int ret; + + va_start(vl, format); + ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl); + va_end(vl); + + /* be sure old text gets overwritten */ + for (; ret < 28; ret++) + noticeMsg[ret] = ' '; + noticeMsg[ret] = 0; + + notice_msg_time = plat_get_ticks_ms(); +} + +static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" }; +static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" }; +static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" }; static int find_bios(int region, char **bios_file) { static char bios_path[1024]; int i, count; - const char **files; + const char * const *files; FILE *f = NULL; if (region == 4) { // US @@ -112,8 +133,7 @@ static int find_bios(int region, char **bios_file) for (i = 0; i < count; i++) { - plat_get_root_dir(bios_path, sizeof(bios_path)); - strcat(bios_path, files[i]); + emu_make_path(bios_path, files[i], sizeof(bios_path) - 4); strcat(bios_path, ".bin"); f = fopen(bios_path, "rb"); if (f) break; @@ -156,12 +176,13 @@ static unsigned char id_header[0x100]; /* checks if fname points to valid MegaCD image * if so, checks for suitable BIOS */ -int emu_cd_check(int *pregion, char *fname_in) +static int emu_cd_check(int *pregion, const char *fname_in) { + const char *fname = fname_in; unsigned char buf[32]; pm_file *cd_f; int region = 4; // 1: Japan, 4: US, 8: Europe - char ext[5], *fname = fname_in; + char ext[5]; cue_track_type type = CT_UNKNOWN; cue_data_t *cue_data = NULL; @@ -385,8 +406,8 @@ int emu_reload_rom(char *rom_fname) // valid CD image, check for BIOS.. // we need to have config loaded at this point - ret = emu_read_config(1, 1); - if (!ret) emu_read_config(0, 1); + ret = emu_read_config(1, 0); + if (!ret) emu_read_config(0, 0); cfg_loaded = 1; if (PicoRegionOverride) { @@ -443,8 +464,8 @@ int emu_reload_rom(char *rom_fname) if (!(PicoAHW & PAHW_MCD)) memcpy(id_header, rom_data + 0x100, sizeof(id_header)); if (!cfg_loaded) { - ret = emu_read_config(1, 1); - if (!ret) emu_read_config(0, 1); + ret = emu_read_config(1, 0); + if (!ret) emu_read_config(0, 0); } lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size); @@ -486,21 +507,22 @@ int emu_reload_rom(char *rom_fname) // TODO: bits 6 & 5 } movie_data[0x18+30] = 0; - plat_status_msg("MOVIE: %s", (char *) &movie_data[0x18]); + emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]); } else { PicoOpt &= ~POPT_DIS_VDP_FIFO; - plat_status_msg(Pico.m.pal ? "PAL SYSTEM / 50 FPS" : "NTSC SYSTEM / 60 FPS"); + emu_status_msg(Pico.m.pal ? "PAL SYSTEM / 50 FPS" : "NTSC SYSTEM / 60 FPS"); } + strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1); + rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0; + rom_loaded = 1; + // load SRAM for this ROM if (currentConfig.EmuOpt & EOPT_EN_SRAM) emu_save_load_game(1, 1); - strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1); - rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0; - rom_loaded = 1; return 1; fail2: @@ -510,6 +532,24 @@ fail: return 0; } +int emu_swap_cd(const char *fname) +{ + cd_img_type cd_type; + int ret = -1; + + cd_type = emu_cd_check(NULL, fname); + if (cd_type != CIT_NOT_CD) + ret = Insert_CD(fname, cd_type); + if (ret != 0) { + me_update_msg("Load failed, invalid CD image?"); + return 0; + } + + strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1); + rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0; + return 1; +} + static void romfname_ext(char *dst, const char *prefix, const char *ext) { char *p; @@ -533,21 +573,32 @@ static void romfname_ext(char *dst, const char *prefix, const char *ext) if (ext) strcat(dst, ext); } -static void make_config_cfg(char *cfg) +void emu_make_path(char *buff, const char *end, int size) { - int len; - len = plat_get_root_dir(cfg, 512); - strncpy(cfg + len, PicoConfigFile, 512-6-1-len); + int pos, end_len; + + end_len = strlen(end); + pos = plat_get_root_dir(buff, size); + strncpy(buff + pos, end, size - pos); + buff[size - 1] = 0; + if (pos + end_len > size - 1) + lprintf("Warning: path truncated: %s\n", buff); +} + +static void make_config_cfg(char *cfg_buff_512) +{ + emu_make_path(cfg_buff_512, PicoConfigFile, 512-6); if (config_slot != 0) { - char *p = strrchr(cfg, '.'); - if (p == NULL) p = cfg + strlen(cfg); + char *p = strrchr(cfg_buff_512, '.'); + if (p == NULL) + p = cfg_buff_512 + strlen(cfg_buff_512); sprintf(p, ".%i.cfg", config_slot); } - cfg[511] = 0; + cfg_buff_512[511] = 0; } -static void emu_setDefaultConfig(void) +void emu_set_defconfig(void) { memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig)); PicoOpt = currentConfig.s_PicoOpt; @@ -562,10 +613,11 @@ int emu_read_config(int game, int no_defaults) char cfg[512]; int ret; + if (!no_defaults) + emu_set_defconfig(); + if (!game) { - if (!no_defaults) - emu_setDefaultConfig(); make_config_cfg(cfg); ret = config_readsect(cfg, NULL); } @@ -583,7 +635,7 @@ int emu_read_config(int game, int no_defaults) { // read user's config int vol = currentConfig.volume; - emu_setDefaultConfig(); + emu_set_defconfig(); ret = config_readsect(cfg, sect); currentConfig.volume = vol; // make vol global (bah) } @@ -592,7 +644,8 @@ int emu_read_config(int game, int no_defaults) // read global config, and apply game_def.cfg on top make_config_cfg(cfg); config_readsect(cfg, NULL); - ret = config_readsect("game_def.cfg", sect); + emu_make_path(cfg, "game_def.cfg", sizeof(cfg)); + ret = config_readsect(cfg, sect); } if (ret == 0) @@ -650,44 +703,38 @@ int emu_write_config(int is_game) } -void emu_writelrom(void) -{ - char cfg[512]; - make_config_cfg(cfg); - config_writelrom(cfg); -#ifndef NO_SYNC - sync(); -#endif -} - /* always using built-in font */ -#define mk_text_out(name, type, val) \ +#define mk_text_out(name, type, val, topleft, step_x, step_y) \ void name(int x, int y, const char *text) \ { \ int i, l, len = strlen(text); \ - type *screen = (type *)g_screen_ptr + x + y * g_screen_width; \ + type *screen = (type *)(topleft) + x * step_x + y * step_y; \ \ - for (i = 0; i < len; i++, screen += 8) \ + for (i = 0; i < len; i++, screen += 8 * step_x) \ { \ for (l = 0; l < 8; l++) \ { \ unsigned char fd = fontdata8x8[text[i] * 8 + l];\ - type *s = screen + l * g_screen_width; \ - if (fd&0x80) s[0] = val; \ - if (fd&0x40) s[1] = val; \ - if (fd&0x20) s[2] = val; \ - if (fd&0x10) s[3] = val; \ - if (fd&0x08) s[4] = val; \ - if (fd&0x04) s[5] = val; \ - if (fd&0x02) s[6] = val; \ - if (fd&0x01) s[7] = val; \ + type *s = screen + l * step_y; \ + if (fd&0x80) s[step_x * 0] = val; \ + if (fd&0x40) s[step_x * 1] = val; \ + if (fd&0x20) s[step_x * 2] = val; \ + if (fd&0x10) s[step_x * 3] = val; \ + if (fd&0x08) s[step_x * 4] = val; \ + if (fd&0x04) s[step_x * 5] = val; \ + if (fd&0x02) s[step_x * 6] = val; \ + if (fd&0x01) s[step_x * 7] = val; \ } \ } \ } -mk_text_out(emu_textOut8, unsigned char, 0xf0) -mk_text_out(emu_textOut16, unsigned short, 0xffff) +mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width) +mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width) +mk_text_out(emu_text_out8_rot, unsigned char, 0xf0, + (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1) +mk_text_out(emu_text_out16_rot, unsigned short, 0xffff, + (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1) #undef mk_text_out @@ -698,7 +745,7 @@ void update_movie(void) if (offs+3 > movie_size) { free(movie_data); movie_data = 0; - plat_status_msg("END OF MOVIE."); + emu_status_msg("END OF MOVIE."); lprintf("END OF MOVIE.\n"); } else { // MXYZ SACB RLDU @@ -719,18 +766,6 @@ void update_movie(void) } } - -static size_t gzRead2(void *p, size_t _size, size_t _n, void *file) -{ - return gzread(file, p, _n); -} - - -static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file) -{ - return gzwrite(file, p, _n); -} - static int try_ropen_file(const char *fname) { FILE *f; @@ -750,7 +785,8 @@ char *emu_get_save_fname(int load, int is_sram, int slot) if (is_sram) { - romfname_ext(saveFname, (PicoAHW&1) ? "brm"PATH_SEP : "srm"PATH_SEP, (PicoAHW&1) ? ".brm" : ".srm"); + romfname_ext(saveFname, (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, + (PicoAHW & PAHW_MCD) ? ".brm" : ".srm"); if (load) { if (try_ropen_file(saveFname)) return saveFname; // try in current dir.. @@ -794,23 +830,6 @@ int emu_check_save_file(int slot) return emu_get_save_fname(1, 0, slot) ? 1 : 0; } -void emu_setSaveStateCbs(int gz) -{ - if (gz) { - areaRead = gzRead2; - areaWrite = gzWrite2; - areaEof = (areaeof *) gzeof; - areaSeek = (areaseek *) gzseek; - areaClose = (areaclose *) gzclose; - } else { - areaRead = (arearw *) fread; - areaWrite = (arearw *) fwrite; - areaEof = (areaeof *) feof; - areaSeek = (areaseek *) fseek; - areaClose = (areaclose *) fclose; - } -} - int emu_save_load_game(int load, int sram) { int ret = 0; @@ -820,7 +839,7 @@ int emu_save_load_game(int load, int sram) saveFname = emu_get_save_fname(load, sram, state_slot); if (saveFname == NULL) { if (!sram) - plat_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED"); + emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED"); return -1; } @@ -881,35 +900,14 @@ int emu_save_load_game(int load, int sram) } else { - void *PmovFile = NULL; - if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) - { - if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) { - emu_setSaveStateCbs(1); - if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY); - } - } - else - { - if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) { - emu_setSaveStateCbs(0); - } - } - if(PmovFile) { - ret = PmovState(load ? 6 : 5, PmovFile); - areaClose(PmovFile); - PmovFile = 0; - if (load) Pico.m.dirtyPal=1; + ret = PicoState(saveFname, !load); + if (!ret) { #ifndef NO_SYNC - else sync(); + if (!load) sync(); #endif - } - else ret = -1; - if (!ret) - plat_status_msg(load ? "GAME LOADED" : "GAME SAVED"); - else - { - plat_status_msg(load ? "LOAD FAILED" : "SAVE FAILED"); + emu_status_msg(load ? "STATE LOADED" : "STATE SAVED"); + } else { + emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED"); ret = -1; } @@ -931,7 +929,7 @@ void emu_set_fastforward(int set_on) currentConfig.EmuOpt &= ~4; currentConfig.EmuOpt |= 0x40000; is_on = 1; - plat_status_msg("FAST FORWARD"); + emu_status_msg("FAST FORWARD"); } else if (!set_on && is_on) { PsndOut = set_PsndOut; @@ -942,9 +940,14 @@ void emu_set_fastforward(int set_on) } } -static void emu_msg_tray_open(void) +static void emu_tray_open(void) +{ + engineState = PGS_TrayMenu; +} + +static void emu_tray_close(void) { - plat_status_msg("CD tray opened"); + emu_status_msg("CD tray closed."); } void emu_reset_game(void) @@ -962,9 +965,9 @@ void run_events_pico(unsigned int events) if (pico_inp_mode > 2) pico_inp_mode = 0; switch (pico_inp_mode) { - case 2: plat_status_msg("Input: Pen on Pad"); break; - case 1: plat_status_msg("Input: Pen on Storyware"); break; - case 0: plat_status_msg("Input: Joystick"); + case 2: emu_status_msg("Input: Pen on Pad"); break; + case 1: emu_status_msg("Input: Pen on Storyware"); break; + case 0: emu_status_msg("Input: Joystick"); PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000; break; } @@ -973,13 +976,13 @@ void run_events_pico(unsigned int events) PicoPicohw.page--; if (PicoPicohw.page < 0) PicoPicohw.page = 0; - plat_status_msg("Page %i", PicoPicohw.page); + emu_status_msg("Page %i", PicoPicohw.page); } if (events & PEV_PICO_PNEXT) { PicoPicohw.page++; if (PicoPicohw.page > 6) PicoPicohw.page = 6; - plat_status_msg("Page %i", PicoPicohw.page); + emu_status_msg("Page %i", PicoPicohw.page); } if (pico_inp_mode == 0) @@ -1068,7 +1071,7 @@ static void run_events_ui(unsigned int which) in_set_blocking(0); } if (do_it) { - plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING GAME" : "SAVING GAME"); + plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE"); PicoStateProgressCB = plat_status_msg_busy_next; emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0); PicoStateProgressCB = NULL; @@ -1076,7 +1079,7 @@ static void run_events_ui(unsigned int which) } if (which & PEV_SWITCH_RND) { - plat_video_toggle_renderer(); + plat_video_toggle_renderer(1, 0); } if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT)) { @@ -1090,7 +1093,7 @@ static void run_events_ui(unsigned int which) state_slot = 0; } - plat_status_msg("SAVE SLOT %i [%s]", state_slot, + emu_status_msg("SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE"); } if (which & PEV_MENU) @@ -1152,19 +1155,22 @@ static void mkdir_path(char *path_with_reserve, int pos, const char *name) void emu_init(void) { - char dir[256]; + char path[512]; int pos; /* make dirs for saves */ - pos = plat_get_root_dir(dir, sizeof(dir) - 4); - mkdir_path(dir, pos, "mds"); - mkdir_path(dir, pos, "srm"); - mkdir_path(dir, pos, "brm"); + pos = plat_get_root_dir(path, sizeof(path) - 4); + mkdir_path(path, pos, "mds"); + mkdir_path(path, pos, "srm"); + mkdir_path(path, pos, "brm"); + + make_config_cfg(path); + config_readlrom(path); PicoInit(); PicoMessage = plat_status_msg_busy_next; - PicoMCDopenTray = emu_msg_tray_open; - PicoMCDcloseTray = menu_loop_tray; + PicoMCDopenTray = emu_tray_open; + PicoMCDcloseTray = emu_tray_close; } void emu_finish(void) @@ -1175,9 +1181,220 @@ void emu_finish(void) SRam.changed = 0; } - if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) - emu_writelrom(); + if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) { + char cfg[512]; + make_config_cfg(cfg); + config_writelrom(cfg); +#ifndef NO_SYNC + sync(); +#endif + } PicoExit(); } +static void skip_frame(int do_audio) +{ + PicoSkipFrame = do_audio ? 1 : 2; + PicoFrame(); + PicoSkipFrame = 0; +} + +/* our tick here is 1 us right now */ +#define ms_to_ticks(x) (unsigned int)(x * 1000) +#define get_ticks() plat_get_ticks_us() + +void emu_loop(void) +{ + int pframes_done; /* "period" frames, used for sync */ + int frames_done, frames_shown; /* actual frames for fps counter */ + int oldmodes, target_fps, target_frametime; + unsigned int timestamp_base = 0, timestamp_fps; + char *notice_msg = NULL; + char fpsbuff[24]; + int i; + + fpsbuff[0] = 0; + + /* make sure we are in correct mode */ + oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc; + Pico.m.dirtyPal = 1; + + /* number of ticks per frame */ + if (Pico.m.pal) { + target_fps = 50; + target_frametime = ms_to_ticks(1000) / 50; + } else { + target_fps = 60; + target_frametime = ms_to_ticks(1000) / 60 + 1; + } + + // prepare CD buffer + if (PicoAHW & PAHW_MCD) + PicoCDBufferInit(); + + pemu_loop_prep(); + + timestamp_fps = get_ticks(); + reset_timing = 1; + + frames_done = frames_shown = pframes_done = 0; + + plat_video_wait_vsync(); + + /* loop with resync every 1 sec. */ + while (engineState == PGS_Running) + { + unsigned int timestamp; + int diff, diff_lim; + int modes; + + timestamp = get_ticks(); + if (reset_timing) { + reset_timing = 0; + timestamp_base = timestamp; + pframes_done = 0; + } + + // show notice_msg message? + if (notice_msg_time != 0) + { + static int noticeMsgSum; + if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) { + notice_msg_time = 0; + plat_status_msg_clear(); + notice_msg = NULL; + } else { + int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2]; + if (sum != noticeMsgSum) { + plat_status_msg_clear(); + noticeMsgSum = sum; + } + notice_msg = noticeMsg; + } + } + + // check for mode changes + modes = ((Pico.video.reg[12]&1)<<2) | (Pico.video.reg[1]&8); + if (modes != oldmodes) { + oldmodes = modes; + pemu_video_mode_change(!(modes & 4), (modes & 8)); + } + + // second changed? + if (timestamp - timestamp_fps >= ms_to_ticks(1000)) + { +#ifdef BENCHMARK + static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4]; + if (++bench == 10) { + bench = 0; + bench_fps_s = bench_fps; + bf[bfp++ & 3] = bench_fps; + bench_fps = 0; + } + bench_fps += frames_shown; + sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2); +#else + if (currentConfig.EmuOpt & EOPT_SHOW_FPS) { + sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done); + if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; } + } +#endif + frames_shown = frames_done = 0; + timestamp_fps += ms_to_ticks(1000); + } +#ifdef PFRAMES + sprintf(fpsbuff, "%i", Pico.m.frame_count); +#endif + + if (timestamp - timestamp_base >= ms_to_ticks(1000)) + { + if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0) + pframes_done = 0; + else { + pframes_done -= target_fps; + /* don't allow it to drift during heavy slowdowns */ + if (pframes_done < -5) { + reset_timing = 1; + continue; + } + if (pframes_done < -2) + pframes_done = -2; + } + timestamp_base += ms_to_ticks(1000); + } + + diff = timestamp - timestamp_base; + diff_lim = (pframes_done + 1) * target_frametime; + + if (currentConfig.Frameskip >= 0) // frameskip enabled + { + for (i = 0; i < currentConfig.Frameskip; i++) { + emu_update_input(); + skip_frame(1); + pframes_done++; frames_done++; + diff_lim += target_frametime; + + if (!(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) { + timestamp = get_ticks(); + diff = timestamp - timestamp_base; + if (diff < diff_lim) // we are too fast + plat_wait_till_us(timestamp_base + diff_lim); + } + } + } + else if (diff > diff_lim) + { + /* no time left for this frame - skip */ + if (diff - diff_lim >= ms_to_ticks(200)) { + /* if too much behind, reset instead */ + reset_timing = 1; + continue; + } + emu_update_input(); + skip_frame(diff < diff_lim + target_frametime * 2); + pframes_done++; frames_done++; + continue; + } + + emu_update_input(); + PicoFrame(); + + /* frame limiter */ + if (!reset_timing && !(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) + { + timestamp = get_ticks(); + diff = timestamp - timestamp_base; + + // sleep or vsync if we are still too fast + if (diff < diff_lim) + { + // we are too fast + plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4); + if (currentConfig.EmuOpt & EOPT_VSYNC) + plat_video_wait_vsync(); + } + } + + pemu_update_display(fpsbuff, notice_msg); + + pframes_done++; frames_done++; frames_shown++; + } + + emu_set_fastforward(0); + + // save SRAM + if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) { + plat_status_msg_busy_first("Writing SRAM/BRAM..."); + emu_save_load_game(0, 1); + SRam.changed = 0; + } + + pemu_loop_end(); + + // pemu_loop_end() might want to do 1 frame for bg image, + // so free CD buffer here + if (PicoAHW & PAHW_MCD) + PicoCDBufferFree(); +} +