X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=platform%2Fgizmondo%2Femu.c;h=8a5755642bda9e0ecf0a1ed5cd8728a5d27a0a31;hb=9839d126cc1cf782fad713f4fbc3611cba628ade;hp=3d5fae7530ae911f40ab35eaecd4779202187af1;hpb=e5f426aa2e86d56357b8af2795e73cc0c9b17e8f;p=picodrive.git diff --git a/platform/gizmondo/emu.c b/platform/gizmondo/emu.c index 3d5fae7..8a57556 100644 --- a/platform/gizmondo/emu.c +++ b/platform/gizmondo/emu.c @@ -1,33 +1,652 @@ #include +#include +#include // mkdir +#include + +#include "kgsdk/Framework.h" +#include "kgsdk/Framework2D.h" +#include "kgsdk/FrameworkAudio.h" +#include "../common/emu.h" +#include "../common/lprintf.h" +#include "../common/arm_utils.h" #include "emu.h" +#include "menu.h" +#include "giz.h" +#include "asm_utils.h" + +#include + +#ifdef BENCHMARK +#define OSD_FPS_X 220 +#else +#define OSD_FPS_X 260 +#endif +// main 300K gfx-related buffer. Used by menu and renderers. +unsigned char gfx_buffer[321*240*2*2]; char romFileName[MAX_PATH]; int engineState; -currentConfig_t currentConfig; -unsigned char *rom_data = NULL; -unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer -int state_slot = 0; +unsigned char *PicoDraw2FB = gfx_buffer; // temporary buffer for alt renderer ( (8+320)*(8+240+8) ) int reset_timing = 0; -int config_slot = 0, config_slot_current = 0; - - - - -int emu_ReloadRom(void){} -void emu_Init(void){} -void emu_Deinit(void){} -int emu_SaveLoadGame(int load, int sram){} -void emu_Loop(void){} -void emu_ResetGame(void){} -int emu_ReadConfig(int game, int no_defaults){} -int emu_WriteConfig(int game){} -char *emu_GetSaveFName(int load, int is_sram, int slot){} -int emu_check_save_file(int slot){} -void emu_set_save_cbs(int gz){} -void emu_forced_frame(void){} -int emu_cd_check(char **bios_file){} -int find_bios(int region, char **bios_file){} -void scaling_update(void){} + +static DWORD noticeMsgTime = 0; + + +static void blit(const char *fps, const char *notice); +static void clearArea(int full); + +void emu_noticeMsgUpdated(void) +{ + noticeMsgTime = GetTickCount(); +} + +void emu_getMainDir(char *dst, int len) +{ + if (len > 0) *dst = 0; +} + +static void emu_msg_cb(const char *msg) +{ + if (giz_screen == NULL) + giz_screen = Framework2D_LockBuffer(); + + memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); + emu_textOut16(4, 232, msg); + noticeMsgTime = GetTickCount() - 2000; + + /* assumption: emu_msg_cb gets called only when something slow is about to happen */ + reset_timing = 1; +} + +static void emu_state_cb(const char *str) +{ + if (giz_screen == NULL) + giz_screen = Framework2D_LockBuffer(); + + clearArea(0); + blit("", str); + + Framework2D_UnlockBuffer(); + giz_screen = NULL; +} + +static void emu_msg_tray_open(void) +{ + strcpy(noticeMsg, "CD tray opened"); + noticeMsgTime = GetTickCount(); +} + + +void emu_Init(void) +{ + // make dirs for saves, cfgs, etc. + mkdir("mds", 0777); + mkdir("srm", 0777); + mkdir("brm", 0777); + mkdir("cfg", 0777); + + PicoInit(); + PicoMessage = emu_msg_cb; + PicoMCDopenTray = emu_msg_tray_open; + PicoMCDcloseTray = menu_loop_tray; +} + +void emu_Deinit(void) +{ + // save SRAM + if((currentConfig.EmuOpt & 1) && SRam.changed) { + emu_SaveLoadGame(0, 1); + SRam.changed = 0; + } + + if (!(currentConfig.EmuOpt & 0x20)) { + FILE *f = fopen(PicoConfigFile, "r+b"); + if (!f) emu_WriteConfig(0); + else { + // if we already have config, reload it, except last ROM + fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET); + fread(¤tConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f); + fseek(f, 0, SEEK_SET); + fwrite(¤tConfig, 1, sizeof(currentConfig), f); + fflush(f); + fclose(f); + } + } + + PicoExit(); +} + +void emu_setDefaultConfig(void) +{ + memset(¤tConfig, 0, sizeof(currentConfig)); + currentConfig.lastRomFile[0] = 0; + currentConfig.EmuOpt = 0x1f | 0x680; // | confirm_save, cd_leds, 16bit rend + currentConfig.PicoOpt = 0x0f | 0xc00; // | cd_pcm, cd_cdda + currentConfig.PsndRate = 22050; + currentConfig.PicoRegion = 0; // auto + currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP + currentConfig.Frameskip = 0;//-1; // auto + currentConfig.volume = 50; + currentConfig.KeyBinds[ 2] = 1<<0; // SACB RLDU + currentConfig.KeyBinds[ 3] = 1<<1; + currentConfig.KeyBinds[ 0] = 1<<2; + currentConfig.KeyBinds[ 1] = 1<<3; + currentConfig.KeyBinds[ 5] = 1<<4; + currentConfig.KeyBinds[ 6] = 1<<5; + currentConfig.KeyBinds[ 7] = 1<<6; + currentConfig.KeyBinds[ 4] = 1<<7; + currentConfig.KeyBinds[13] = 1<<26; // switch rend + currentConfig.KeyBinds[ 8] = 1<<27; // save state + currentConfig.KeyBinds[ 9] = 1<<28; // load state + currentConfig.KeyBinds[12] = 1<<29; // vol up + currentConfig.KeyBinds[11] = 1<<30; // vol down + currentConfig.PicoCDBuffers = 64; + currentConfig.scaling = 0; +} + + +static int EmuScan16(unsigned int num, void *sdata) +{ + if (!(Pico.video.reg[1]&8)) num += 8; + DrawLineDest = (unsigned short *) giz_screen + 321*(num+1); + + return 0; +} + +static int EmuScan8(unsigned int num, void *sdata) +{ + // draw like the fast renderer + if (!(Pico.video.reg[1]&8)) num += 8; + HighCol = gfx_buffer + 328*(num+1); + + return 0; +} + +static void osd_text(int x, int y, const char *text) +{ + int len = strlen(text) * 8 / 2; + int *p, h; + for (h = 0; h < 8; h++) { + p = (int *) ((unsigned short *) giz_screen+x+321*(y+h)); + p = (int *) ((int)p & ~3); // align + memset32(p, 0, len); + } + emu_textOut16(x, y, text); +} + +/* +void log1(void *p1, void *p2) +{ + lprintf("%p %p %p\n", p1, p2, DrawLineDest); +} +*/ + +static void cd_leds(void) +{ + static int old_reg = 0; + unsigned int col_g, col_r, *p; + + if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change + old_reg = Pico_mcd->s68k_regs[0]; + + p = (unsigned int *)((short *)giz_screen + 321*2+4+2); + col_g = (old_reg & 2) ? 0x06000600 : 0; + col_r = (old_reg & 1) ? 0xc000c000 : 0; + *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 321/2 - 12/2 + 1; + *p++ = col_g; p+=3; *p++ = col_r; p += 321/2 - 10/2; + *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; +} + + +static short localPal[0x100]; + +static void blit(const char *fps, const char *notice) +{ + int emu_opt = currentConfig.EmuOpt; + + if (PicoOpt&0x10) + { + int lines_flags = 224; + // 8bit fast renderer + if (Pico.m.dirtyPal) { + Pico.m.dirtyPal = 0; + vidConvCpyRGB565(localPal, Pico.cram, 0x40); + } + if (!(Pico.video.reg[12]&1)) lines_flags|=0x100; + vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags); + } + else if (!(emu_opt&0x80)) + { + int lines_flags; + // 8bit accurate renderer + if (Pico.m.dirtyPal) { + Pico.m.dirtyPal = 0; + vidConvCpyRGB565(localPal, Pico.cram, 0x40); + if (Pico.video.reg[0xC]&8) { // shadow/hilight mode + //vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40); + //vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); // TODO? + blockcpy(localPal+0xc0, localPal+0x40, 0x40*2); + localPal[0xc0] = 0x0600; + localPal[0xd0] = 0xc000; + localPal[0xe0] = 0x0000; // reserved pixels for OSD + localPal[0xf0] = 0xffff; + } + /* no support + else if (rendstatus & 0x20) { // mid-frame palette changes + vidConvCpyRGB565(localPal+0x40, HighPal, 0x40); + vidConvCpyRGB565(localPal+0x80, HighPal+0x40, 0x40); + } */ + } + lines_flags = (Pico.video.reg[1]&8) ? 240 : 224; + if (!(Pico.video.reg[12]&1)) lines_flags|=0x100; + vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags); + } + + if (notice || (emu_opt & 2)) { + int h = 232; + if (notice) osd_text(4, h, notice); + if (emu_opt & 2) osd_text(OSD_FPS_X, h, fps); + } + + if ((emu_opt & 0x400) && (PicoMCD & 1)) + cd_leds(); +} + +// clears whole screen or just the notice area (in all buffers) +static void clearArea(int full) +{ + if (giz_screen == NULL) + giz_screen = Framework2D_LockBuffer(); + if (full) memset32(giz_screen, 0, 320*240*2/4); + else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); +} + +static void vidResetMode(void) +{ + giz_screen = Framework2D_LockBuffer(); + + if (PicoOpt&0x10) { + } else if (currentConfig.EmuOpt&0x80) { + PicoDrawSetColorFormat(1); + PicoScan = EmuScan16; + } else { + PicoDrawSetColorFormat(-1); + PicoScan = EmuScan8; + } + if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) { + // setup pal for 8-bit modes + localPal[0xc0] = 0x0600; + localPal[0xd0] = 0xc000; + localPal[0xe0] = 0x0000; // reserved pixels for OSD + localPal[0xf0] = 0xffff; + } + Pico.m.dirtyPal = 1; + + memset32(giz_screen, 0, 321*240*2/4); + Framework2D_UnlockBuffer(); + giz_screen = NULL; +} + + +static void SkipFrame(int do_audio) +{ + PicoSkipFrame=do_audio ? 1 : 2; + PicoFrame(); + PicoSkipFrame=0; +} + +void emu_forcedFrame(void) +{ + // TODO +} + +static void RunEvents(unsigned int which) +{ + if (which & 0x1800) { // save or load (but not both) + int do_it = 1; + if ( emu_checkSaveFile(state_slot) && + (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load + (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save + int keys; + blit("", (which & 0x1000) ? "LOAD STATE? (PLAY=yes, STOP=no)" : "OVERWRITE SAVE? (PLAY=yes, STOP=no)"); + while( !((keys = Framework_PollGetButtons()) & (BTN_PLAY|BTN_STOP)) ) + Sleep(50); + if (keys & BTN_STOP) do_it = 0; + clearArea(0); + } + if (do_it) { + osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME"); + PicoStateProgressCB = emu_state_cb; + emu_SaveLoadGame((which & 0x1000) >> 12, 0); + PicoStateProgressCB = NULL; + } + + reset_timing = 1; + } + if (which & 0x0400) { // switch renderer + if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; } + else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10; + else currentConfig.EmuOpt &= ~0x80; + + vidResetMode(); + + if (PicoOpt&0x10) { + strcpy(noticeMsg, " 8bit fast renderer"); + } else if (currentConfig.EmuOpt&0x80) { + strcpy(noticeMsg, "16bit accurate renderer"); + } else { + strcpy(noticeMsg, " 8bit accurate renderer"); + } + + noticeMsgTime = GetTickCount(); + } + if (which & 0x0300) { + if(which&0x0200) { + state_slot -= 1; + if(state_slot < 0) state_slot = 9; + } else { + state_slot += 1; + if(state_slot > 9) state_slot = 0; + } + sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE"); + noticeMsgTime = GetTickCount(); + } +} + +static void updateKeys(void) +{ + unsigned int keys, allActions[2] = { 0, 0 }, events; + static unsigned int prevEvents = 0; + int i; + + keys = Framework_PollGetButtons(); + if (keys & BTN_HOME) { + engineState = PGS_Menu; + // wait until select is released, so menu would not resume game + while (Framework_PollGetButtons() & BTN_HOME) Sleep(50); + } + + keys &= CONFIGURABLE_KEYS; + + for (i = 0; i < 32; i++) + { + if (keys & (1 << i)) { + int pl, acts = currentConfig.KeyBinds[i]; + if (!acts) continue; + pl = (acts >> 16) & 1; + /* TODO if (combo_keys & (1 << i)) { + int u = i+1, acts_c = acts & combo_acts; + // let's try to find the other one + if (acts_c) + for (; u < 32; u++) + if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) { + allActions[pl] |= acts_c; + keys &= ~((1 << i) | (1 << u)); + break; + } + // add non-combo actions if combo ones were not found + if (!acts_c || u == 32) + allActions[pl] |= acts & ~combo_acts; + } else */ { + allActions[pl] |= acts; + } + } + } + + PicoPad[0] = (unsigned short) allActions[0]; + PicoPad[1] = (unsigned short) allActions[1]; + + events = (allActions[0] | allActions[1]) >> 16; + + // volume is treated in special way and triggered every frame + if (events & 0x6000) { + int vol = currentConfig.volume; + if (events & 0x2000) { + if (vol < 100) vol++; + } else { + if (vol > 0) vol--; + } + //gp2x_sound_volume(vol, vol); + sprintf(noticeMsg, "VOL: %02i", vol); + noticeMsgTime = GetTickCount(); + currentConfig.volume = vol; + } + + events &= ~prevEvents; + if (events) RunEvents(events); + if (movie_data) emu_updateMovie(); + + prevEvents = (allActions[0] | allActions[1]) >> 16; +} + +static void simpleWait(DWORD until) +{ + DWORD tval; + int diff; + + tval = GetTickCount(); + diff = (int)until - (int)tval; + if (diff >= 2) + Sleep(diff - 1); + + while ((tval = GetTickCount()) < until && until - tval < 512) // some simple overflow detection + spend_cycles(1024*2); +} + +void emu_Loop(void) +{ + //static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0; + char fpsbuff[24]; // fps count c string + DWORD tval, tval_prev = 0, tval_thissec = 0; // timing + int frames_done = 0, frames_shown = 0, oldmodes = 0; + int target_fps, target_frametime, lim_time, tval_diff, i; + char *notice = NULL; + + lprintf("entered emu_Loop()\n"); + + fpsbuff[0] = 0; + + // make sure we are in correct mode + vidResetMode(); + if (currentConfig.scaling) PicoOpt|=0x4000; + else PicoOpt&=~0x4000; + Pico.m.dirtyPal = 1; + oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc; + //find_combos(); // TODO + + // pal/ntsc might have changed, reset related stuff + target_fps = Pico.m.pal ? 50 : 60; + target_frametime = (1000<<8)/target_fps; + reset_timing = 1; + + // prepare sound stuff +/* if (currentConfig.EmuOpt & 4) { + int snd_excess_add; + if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) { + sound_rerate(Pico.m.frame_count ? 1 : 0); + } + snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps; + lprintf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n", + PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal); + gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3); + gp2x_sound_volume(currentConfig.volume, currentConfig.volume); + PicoWriteSound = updateSound; + memset(sndBuffer, 0, sizeof(sndBuffer)); + PsndOut = sndBuffer; + PsndRate_old = PsndRate; + PsndLen_real = PsndLen; + PicoOpt_old = PicoOpt; + pal_old = Pico.m.pal; + } else*/ { + PsndOut = 0; + } + + // prepare CD buffer + if (PicoMCD & 1) PicoCDBufferInit(); + + // loop? + while (engineState == PGS_Running) + { + int modes; + + tval = GetTickCount(); + if (reset_timing || tval < tval_prev) { + reset_timing = 0; + tval_thissec = tval; + frames_shown = frames_done = 0; + } + + // show notice message? + if (noticeMsgTime) { + static int noticeMsgSum; + if (tval - noticeMsgTime > 2000) { // > 2.0 sec + noticeMsgTime = 0; + clearArea(0); + notice = 0; + } else { + int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2]; + if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; } + notice = noticeMsg; + } + } + + // check for mode changes + modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8); + if (modes != oldmodes) { + oldmodes = modes; + clearArea(1); + } + + // second passed? + if (tval - tval_thissec >= 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 & 2) + sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done); +#endif + tval_thissec = tval; + + if (PsndOut == 0 && currentConfig.Frameskip >= 0) { + frames_done = frames_shown = 0; + } else { + // it is quite common for this implementation to leave 1 fame unfinished + // when second changes, but we don't want buffer to starve. + if (PsndOut && frames_done < target_fps && frames_done > target_fps-5) { + updateKeys(); + SkipFrame(1); frames_done++; + } + + frames_done -= target_fps; if (frames_done < 0) frames_done = 0; + frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0; + if (frames_shown > frames_done) frames_shown = frames_done; + } + } +#ifdef PFRAMES + sprintf(fpsbuff, "%i", Pico.m.frame_count); +#endif + + tval_prev = tval; + lim_time = (frames_done+1) * target_frametime; + if (currentConfig.Frameskip >= 0) // frameskip enabled + { + for (i = 0; i < currentConfig.Frameskip; i++) { + updateKeys(); + SkipFrame(1); frames_done++; + if (PsndOut) { // do framelimitting if sound is enabled + int tval_diff; + tval = GetTickCount(); + tval_diff = (int)(tval - tval_thissec) << 8; + if (tval_diff < lim_time) // we are too fast + simpleWait(tval + ((lim_time - tval_diff)>>8)); + } + lim_time += target_frametime; + } + } + else // auto frameskip + { + int tval_diff; + tval = GetTickCount(); + tval_diff = (int)(tval - tval_thissec) << 8; + if (tval_diff > lim_time) + { + // no time left for this frame - skip + if (tval_diff - lim_time >= (300<<8)) { + /* something caused a slowdown for us (disk access? cache flush?) + * try to recover by resetting timing... */ + reset_timing = 1; + continue; + } + updateKeys(); + SkipFrame(tval_diff < lim_time+target_frametime*2); frames_done++; + continue; + } + } + + updateKeys(); + + if (giz_screen == NULL && (currentConfig.EmuOpt&0x80)) + giz_screen = Framework2D_LockBuffer(); + if (!(PicoOpt&0x10)) + PicoScan((unsigned) -1, NULL); + + PicoFrame(); + + if (giz_screen == NULL) + giz_screen = Framework2D_LockBuffer(); + + blit(fpsbuff, notice); + + if (giz_screen != NULL) { + Framework2D_UnlockBuffer(); + giz_screen = NULL; + } + + // check time + tval = GetTickCount(); + tval_diff = (int)(tval - tval_thissec) << 8; + + if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300<<8)) // slowdown detection + reset_timing = 1; + else if (PsndOut != NULL || currentConfig.Frameskip < 0) + { + // sleep if we are still too fast + if (tval_diff < lim_time) + { + // we are too fast + simpleWait(tval + ((lim_time - tval_diff) >> 8)); + } + } + + frames_done++; frames_shown++; + } + + + if (PicoMCD & 1) PicoCDBufferFree(); + + // save SRAM + if ((currentConfig.EmuOpt & 1) && SRam.changed) { + emu_state_cb("Writing SRAM/BRAM.."); + emu_SaveLoadGame(0, 1); + SRam.changed = 0; + } +} + + +void emu_ResetGame(void) +{ + PicoReset(0); + reset_timing = 1; +}