X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=platform%2Fgizmondo%2Femu.c;h=3a6c861b113f47c4e71e55bcd853c9403281f372;hb=99bdfd31b8708f8059fbc16ec8be90cb8d7c8bc3;hp=3f9a6cb4814cdf206b2cd5334be1a7ae39c4296d;hpb=c9077ab4b91e5c28954cb05e0db20e45e3dd19e4;p=picodrive.git diff --git a/platform/gizmondo/emu.c b/platform/gizmondo/emu.c index 3f9a6cb..3a6c861 100644 --- a/platform/gizmondo/emu.c +++ b/platform/gizmondo/emu.c @@ -1,33 +1,691 @@ #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 "../common/config.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]; + +static short *snd_cbuff = NULL; +static int snd_cbuf_samples = 0, snd_all_samples = 0; + + +static void blit(const char *fps, const char *notice); +static void clearArea(int full); + +int plat_get_root_dir(char *dst, int len) +{ + if (len > 0) *dst = 0; + + return 0; +} + +static void emu_msg_cb(const char *msg) +{ + if (giz_screen != NULL) fb_unlock(); + giz_screen = fb_lock(1); + + memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); + emu_text_out16(4, 232, msg); + noticeMsgTime = GetTickCount() - 2000; + + /* assumption: emu_msg_cb gets called only when something slow is about to happen */ + reset_timing = 1; + + fb_unlock(); + giz_screen = fb_lock((currentConfig.EmuOpt&0x8000) ? 0 : 1); +} + +void emu_stateCb(const char *str) +{ + if (giz_screen != NULL) fb_unlock(); + giz_screen = fb_lock(1); + + clearArea(0); + blit("", str); + + fb_unlock(); + giz_screen = NULL; + + Sleep(0); /* yield the CPU, the system may need it */ +} + +void pemu_prep_defconfig(void) +{ + defaultConfig.s_PsndRate = 22050; + defaultConfig.s_PicoCDBuffers = 0; + defaultConfig.KeyBinds[ 2] = 1<<0; // SACB RLDU + defaultConfig.KeyBinds[ 3] = 1<<1; + defaultConfig.KeyBinds[ 0] = 1<<2; + defaultConfig.KeyBinds[ 1] = 1<<3; + defaultConfig.KeyBinds[ 5] = 1<<4; + defaultConfig.KeyBinds[ 6] = 1<<5; + defaultConfig.KeyBinds[ 7] = 1<<6; + defaultConfig.KeyBinds[ 4] = 1<<7; + defaultConfig.KeyBinds[13] = 1<<26; // switch rend + defaultConfig.KeyBinds[ 8] = 1<<27; // save state + defaultConfig.KeyBinds[ 9] = 1<<28; // load state + defaultConfig.KeyBinds[12] = 1<<29; // vol up + defaultConfig.KeyBinds[11] = 1<<30; // vol down + defaultConfig.scaling = 0; +} + + +static int EmuScanBegin16(unsigned int num) +{ + Pico.est.DrawLineDest = (unsigned short *) giz_screen + 321 * num; + + if ((currentConfig.EmuOpt&0x4000) && (num&1) == 0) // (Pico.m.frame_count&1)) + return 1; // skip next line + + return 0; +} + +static int EmuScanBegin8(unsigned int num) +{ + // draw like the fast renderer + Pico.est.HighCol = gfx_buffer + 328 * num; + + 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_text_out16(x, y, text); +} + +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); + } + // a hack for VR + if (PicoAHW & PAHW_SVP) + memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328); + if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000; + if (currentConfig.EmuOpt&0x4000) + lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000; + 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? + memcpy32((void *)(localPal+0xc0), (void *)(localPal+0x40), 0x40*2/4); + 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|=0x10000; + if (currentConfig.EmuOpt&0x4000) + lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000; + 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) && (PicoAHW & PAHW_MCD)) + cd_leds(); +} + +// clears whole screen or just the notice area (in all buffers) +static void clearArea(int full) +{ + if (giz_screen == NULL) + giz_screen = fb_lock(1); + if (full) memset32(giz_screen, 0, 320*240*2/4); + else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); + + if (currentConfig.EmuOpt&0x8000) { + fb_unlock(); + giz_screen = fb_lock(0); + 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 = fb_lock(1); + + if (PicoOpt&0x10) { + } else if (currentConfig.EmuOpt&0x80) { + PicoDrawSetOutFormat(PDF_RGB555, 0); + PicoDrawSetCallbacks(EmuScanBegin16, NULL); + } else { + PicoDrawSetOutFormat(PDF_NONE, 0); + PicoDrawSetCallbacks(EmuScanBegin8, NULL); + } + 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); + if (currentConfig.EmuOpt&0x8000) { + fb_unlock(); + giz_screen = fb_lock(0); + memset32(giz_screen, 0, 321*240*2/4); + } + fb_unlock(); + giz_screen = NULL; +} + +/* +#include +static void stdbg(const char *fmt, ...) +{ + static int cnt = 0; + va_list vl; + + sprintf(noticeMsg, "%x ", cnt++); + va_start(vl, fmt); + vsnprintf(noticeMsg+strlen(noticeMsg), sizeof(noticeMsg)-strlen(noticeMsg), fmt, vl); + va_end(vl); + + noticeMsgTime = GetTickCount(); +} +*/ + +static void updateSound(int len) +{ + snd_all_samples += len / 2; + PsndOut += len / 2; + if (PsndOut - snd_cbuff >= snd_cbuf_samples) + { + //if (PsndOut - snd_cbuff != snd_cbuf_samples) + // stdbg("snd diff is %i, not %i", PsndOut - snd_cbuff, snd_cbuf_samples); + PsndOut = snd_cbuff; + } +} + + +static void SkipFrame(void) +{ + PicoSkipFrame=1; + PicoFrame(); + PicoSkipFrame=0; +} + +/* forced frame to front buffer */ +void pemu_forced_frame(int no_scale, int do_emu) +{ + int po_old = PicoOpt; + int eo_old = currentConfig.EmuOpt; + + PicoOpt &= ~0x10; + PicoOpt |= POPT_ACC_SPRITES; + if (!no_scale) + PicoOpt |= POPT_EN_SOFTSCALE; + currentConfig.EmuOpt |= 0x80; + + if (giz_screen == NULL) + giz_screen = fb_lock(1); + + PicoDrawSetOutFormat(PDF_RGB555, 0); + PicoDrawSetCallbacks(EmuScanBegin16, NULL); + Pico.m.dirtyPal = 1; + PicoFrameDrawOnly(); + + fb_unlock(); + giz_screen = NULL; + + PicoOpt = po_old; + currentConfig.EmuOpt = eo_old; +} + + +static void RunEvents(unsigned int which) +{ + if (which & 0x1800) // save or load (but not both) + { + int do_it = 1; + + if (PsndOut != NULL) + FrameworkAudio_SetPause(1); + if (giz_screen == NULL) + giz_screen = fb_lock(1); + if ( emu_check_save_file(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()) & (PBTN_PLAY|PBTN_STOP)) ) + Sleep(50); + if (keys & PBTN_STOP) do_it = 0; + while( ((keys = Framework_PollGetButtons()) & (PBTN_PLAY|PBTN_STOP)) ) // wait for release + Sleep(50); + clearArea(0); + } + + if (do_it) + { + osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME"); + PicoStateProgressCB = emu_stateCb; + emu_save_load_game((which & 0x1000) >> 12, 0); + PicoStateProgressCB = NULL; + Sleep(0); + } + + if (PsndOut != NULL) + FrameworkAudio_SetPause(0); + reset_timing = 1; + } + if (which & 0x0400) // switch renderer + { + if (PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; } + else { PicoOpt|= 0x10; 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_check_save_file(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; + + /* FIXME: port to input fw, merge with emu.c:emu_update_input() */ + keys = Framework_PollGetButtons(); + if (keys & PBTN_HOME) + engineState = PGS_Menu; + + keys &= CONFIGURABLE_KEYS; + + PicoPad[0] = allActions[0] & 0xfff; + PicoPad[1] = allActions[1] & 0xfff; + + if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]); + if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]); + + events = (allActions[0] | allActions[1]) >> 16; + + // volume is treated in special way and triggered every frame + if ((events & 0x6000) && PsndOut != NULL) + { + int vol = currentConfig.volume; + if (events & 0x2000) { + if (vol < 100) vol++; + } else { + if (vol > 0) vol--; + } + FrameworkAudio_SetVolume(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; +} + +void plat_debug_cat(char *str) +{ +} + +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 pemu_loop(void) +{ + static int PsndRate_old = 0, PicoOpt_old = 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, sec_ms = 1000; + 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; + + // pal/ntsc might have changed, reset related stuff + target_fps = Pico.m.pal ? 50 : 60; + target_frametime = Pico.m.pal ? (1000<<8)/50 : (1000<<8)/60+1; + reset_timing = 1; + + // prepare CD buffer + if (PicoAHW & PAHW_MCD) PicoCDBufferInit(); + + // prepare sound stuff + PsndOut = NULL; + if (currentConfig.EmuOpt & 4) + { + int ret, snd_excess_add, stereo; + if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) { + PsndRerate(Pico.m.frame_count ? 1 : 0); + } + stereo=(PicoOpt&8)>>3; + snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps; + snd_cbuf_samples = (PsndRate< 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 >= sec_ms) + { +#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 += 1000; + tval_thissec += sec_ms; + + if (PsndOut != NULL) + { + /* some code which tries to sync things to audio clock, the dirty way */ + static int audio_skew_prev = 0; + int audio_skew, adj, co = 9, shift = 7; + audio_skew = snd_all_samples*2 - FrameworkAudio_BufferPos(); + if (PsndRate == 22050) co = 10; + if (PsndRate > 22050) co = 11; + if (PicoOpt&8) shift++; + if (audio_skew < 0) { + adj = -((-audio_skew) >> shift); + if (audio_skew > -(6<>=1; + if (audio_skew > -(4<>=1; + if (audio_skew > -(2<>=1; + if (audio_skew > audio_skew_prev) adj>>=2; // going up already + } else { + adj = audio_skew >> shift; + if (audio_skew < (6<>=1; + if (audio_skew < (4<>=1; + if (audio_skew < (2<>=1; + if (audio_skew < audio_skew_prev) adj>>=2; + } + audio_skew_prev = audio_skew; + target_frametime += adj; + sec_ms = (target_frametime * target_fps) >> 8; + //stdbg("%i %i %i", audio_skew, adj, sec_ms); + frames_done = frames_shown = 0; + } + else if (currentConfig.Frameskip < 0) { + 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; + } else { + frames_done = frames_shown = 0; + } + } +#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(); 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(); frames_done++; + continue; + } + } + + updateKeys(); + + if (currentConfig.EmuOpt&0x80) + /* be sure correct framebuffer is locked */ + giz_screen = fb_lock((currentConfig.EmuOpt&0x8000) ? 0 : 1); + + PicoFrame(); + + if (giz_screen == NULL) + giz_screen = fb_lock((currentConfig.EmuOpt&0x8000) ? 0 : 1); + + blit(fpsbuff, notice); + + if (giz_screen != NULL) { + fb_unlock(); + giz_screen = NULL; + } + + if (currentConfig.EmuOpt&0x2000) + Framework2D_WaitVSync(); + + if (currentConfig.EmuOpt&0x8000) + fb_flip(); + + // 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 (PicoAHW & PAHW_MCD) PicoCDBufferFree(); + + if (PsndOut != NULL) { + PsndOut = snd_cbuff = NULL; + FrameworkAudio_Close(); + } -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; -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(int *pregion){} -int find_bios(int region, char **bios_file){} -void scaling_update(void){} + // save SRAM + if ((currentConfig.EmuOpt & 1) && SRam.changed) { + emu_stateCb("Writing SRAM/BRAM.."); + emu_save_load_game(0, 1); + SRam.changed = 0; + } +}