4 #include <sys/stat.h> // mkdir
7 #include "kgsdk/Framework.h"
8 #include "kgsdk/Framework2D.h"
9 #include "kgsdk/FrameworkAudio.h"
10 #include "../common/emu.h"
11 #include "../common/lprintf.h"
12 #include "../common/arm_utils.h"
16 #include "asm_utils.h"
18 #include <Pico/PicoInt.h>
26 // main 300K gfx-related buffer. Used by menu and renderers.
27 unsigned char gfx_buffer[321*240*2*2];
28 char romFileName[MAX_PATH];
31 unsigned char *PicoDraw2FB = gfx_buffer; // temporary buffer for alt renderer ( (8+320)*(8+240+8) )
34 static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos
35 static DWORD noticeMsgTime = 0;
36 static short *snd_cbuff = NULL;
37 static int snd_cbuf_samples = 0, snd_all_samples = 0;
40 static void blit(const char *fps, const char *notice);
41 static void clearArea(int full);
43 void emu_noticeMsgUpdated(void)
45 noticeMsgTime = GetTickCount();
48 void emu_getMainDir(char *dst, int len)
50 if (len > 0) *dst = 0;
53 static void emu_msg_cb(const char *msg)
55 if (giz_screen != NULL) Framework2D_UnlockBuffer();
56 giz_screen = Framework2D_LockBuffer(1);
58 memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
59 emu_textOut16(4, 232, msg);
60 noticeMsgTime = GetTickCount() - 2000;
62 /* assumption: emu_msg_cb gets called only when something slow is about to happen */
65 Framework2D_UnlockBuffer();
66 giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1);
69 void emu_stateCb(const char *str)
71 if (giz_screen != NULL) Framework2D_UnlockBuffer();
72 giz_screen = Framework2D_LockBuffer(1);
77 Framework2D_UnlockBuffer();
80 Sleep(0); /* yield the CPU, the system may need it */
83 static void emu_msg_tray_open(void)
85 strcpy(noticeMsg, "CD tray opened");
86 noticeMsgTime = GetTickCount();
92 // make dirs for saves, cfgs, etc.
99 PicoMessage = emu_msg_cb;
100 PicoMCDopenTray = emu_msg_tray_open;
101 PicoMCDcloseTray = menu_loop_tray;
104 void emu_Deinit(void)
107 if ((currentConfig.EmuOpt & 1) && SRam.changed) {
108 emu_SaveLoadGame(0, 1);
112 if (!(currentConfig.EmuOpt & 0x20))
113 config_writelrom(PicoConfigFile);
118 void emu_setDefaultConfig(void)
120 memset(¤tConfig, 0, sizeof(currentConfig));
121 currentConfig.lastRomFile[0] = 0;
122 currentConfig.EmuOpt = 0x1f | 0x680; // | confirm_save, cd_leds, 16bit rend
123 currentConfig.PicoOpt = 0x07 | 0xc00; // | cd_pcm, cd_cdda
124 currentConfig.PsndRate = 22050;
125 currentConfig.PicoRegion = 0; // auto
126 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP
127 currentConfig.Frameskip = -1; // auto
128 currentConfig.volume = 50;
129 currentConfig.KeyBinds[ 2] = 1<<0; // SACB RLDU
130 currentConfig.KeyBinds[ 3] = 1<<1;
131 currentConfig.KeyBinds[ 0] = 1<<2;
132 currentConfig.KeyBinds[ 1] = 1<<3;
133 currentConfig.KeyBinds[ 5] = 1<<4;
134 currentConfig.KeyBinds[ 6] = 1<<5;
135 currentConfig.KeyBinds[ 7] = 1<<6;
136 currentConfig.KeyBinds[ 4] = 1<<7;
137 currentConfig.KeyBinds[13] = 1<<26; // switch rend
138 currentConfig.KeyBinds[ 8] = 1<<27; // save state
139 currentConfig.KeyBinds[ 9] = 1<<28; // load state
140 currentConfig.KeyBinds[12] = 1<<29; // vol up
141 currentConfig.KeyBinds[11] = 1<<30; // vol down
142 currentConfig.PicoCDBuffers = 0;
143 currentConfig.scaling = 0;
147 static int EmuScan16(unsigned int num, void *sdata)
149 if (!(Pico.video.reg[1]&8)) num += 8;
150 DrawLineDest = (unsigned short *) giz_screen + 321*(num+1);
152 if ((currentConfig.EmuOpt&0x4000) && (num&1) == 0) // (Pico.m.frame_count&1))
153 return 1; // skip next line
158 static int EmuScan8(unsigned int num, void *sdata)
160 // draw like the fast renderer
161 if (!(Pico.video.reg[1]&8)) num += 8;
162 HighCol = gfx_buffer + 328*(num+1);
167 static void osd_text(int x, int y, const char *text)
169 int len = strlen(text) * 8 / 2;
171 for (h = 0; h < 8; h++) {
172 p = (int *) ((unsigned short *) giz_screen+x+321*(y+h));
173 p = (int *) ((int)p & ~3); // align
176 emu_textOut16(x, y, text);
180 void log1(void *p1, void *p2)
182 lprintf("%p %p %p\n", p1, p2, DrawLineDest);
186 static void cd_leds(void)
188 static int old_reg = 0;
189 unsigned int col_g, col_r, *p;
191 if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change
192 old_reg = Pico_mcd->s68k_regs[0];
194 p = (unsigned int *)((short *)giz_screen + 321*2+4+2);
195 col_g = (old_reg & 2) ? 0x06000600 : 0;
196 col_r = (old_reg & 1) ? 0xc000c000 : 0;
197 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 321/2 - 12/2 + 1;
198 *p++ = col_g; p+=3; *p++ = col_r; p += 321/2 - 10/2;
199 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
203 static short localPal[0x100];
205 static void blit(const char *fps, const char *notice)
207 int emu_opt = currentConfig.EmuOpt;
211 int lines_flags = 224;
212 // 8bit fast renderer
213 if (Pico.m.dirtyPal) {
215 vidConvCpyRGB565(localPal, Pico.cram, 0x40);
217 if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000;
218 if (currentConfig.EmuOpt&0x4000)
219 lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000;
220 vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags);
222 else if (!(emu_opt&0x80))
225 // 8bit accurate renderer
226 if (Pico.m.dirtyPal) {
228 vidConvCpyRGB565(localPal, Pico.cram, 0x40);
229 if (Pico.video.reg[0xC]&8) { // shadow/hilight mode
230 //vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
231 //vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); // TODO?
232 blockcpy(localPal+0xc0, localPal+0x40, 0x40*2);
233 localPal[0xc0] = 0x0600;
234 localPal[0xd0] = 0xc000;
235 localPal[0xe0] = 0x0000; // reserved pixels for OSD
236 localPal[0xf0] = 0xffff;
239 else if (rendstatus & 0x20) { // mid-frame palette changes
240 vidConvCpyRGB565(localPal+0x40, HighPal, 0x40);
241 vidConvCpyRGB565(localPal+0x80, HighPal+0x40, 0x40);
244 lines_flags = (Pico.video.reg[1]&8) ? 240 : 224;
245 if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000;
246 if (currentConfig.EmuOpt&0x4000)
247 lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000;
248 vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags);
251 if (notice || (emu_opt & 2)) {
253 if (notice) osd_text(4, h, notice);
254 if (emu_opt & 2) osd_text(OSD_FPS_X, h, fps);
257 if ((emu_opt & 0x400) && (PicoMCD & 1))
261 // clears whole screen or just the notice area (in all buffers)
262 static void clearArea(int full)
264 if (giz_screen == NULL)
265 giz_screen = Framework2D_LockBuffer(1);
266 if (full) memset32(giz_screen, 0, 320*240*2/4);
267 else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
269 if (currentConfig.EmuOpt&0x8000) {
270 Framework2D_UnlockBuffer();
271 giz_screen = Framework2D_LockBuffer(0);
272 if (full) memset32(giz_screen, 0, 320*240*2/4);
273 else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
277 static void vidResetMode(void)
279 giz_screen = Framework2D_LockBuffer(1);
282 } else if (currentConfig.EmuOpt&0x80) {
283 PicoDrawSetColorFormat(1);
284 PicoScan = EmuScan16;
286 PicoDrawSetColorFormat(-1);
289 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) {
290 // setup pal for 8-bit modes
291 localPal[0xc0] = 0x0600;
292 localPal[0xd0] = 0xc000;
293 localPal[0xe0] = 0x0000; // reserved pixels for OSD
294 localPal[0xf0] = 0xffff;
298 memset32(giz_screen, 0, 321*240*2/4);
299 if (currentConfig.EmuOpt&0x8000) {
300 Framework2D_UnlockBuffer();
301 giz_screen = Framework2D_LockBuffer(0);
302 memset32(giz_screen, 0, 321*240*2/4);
304 Framework2D_UnlockBuffer();
310 static void stdbg(const char *fmt, ...)
315 sprintf(noticeMsg, "%x ", cnt++);
317 vsnprintf(noticeMsg+strlen(noticeMsg), sizeof(noticeMsg)-strlen(noticeMsg), fmt, vl);
320 noticeMsgTime = GetTickCount();
324 static void updateSound(int len)
326 if (PicoOpt&8) len<<=1;
328 snd_all_samples += len;
330 if (PsndOut - snd_cbuff >= snd_cbuf_samples)
332 //if (PsndOut - snd_cbuff != snd_cbuf_samples)
333 // stdbg("snd diff is %i, not %i", PsndOut - snd_cbuff, snd_cbuf_samples);
339 static void SkipFrame(void)
346 /* forced frame to front buffer */
347 void emu_forcedFrame(void)
349 int po_old = PicoOpt;
350 int eo_old = currentConfig.EmuOpt;
353 PicoOpt |= 0x4080; // soft_scale | acc_sprites
354 currentConfig.EmuOpt |= 0x80;
356 if (giz_screen == NULL)
357 giz_screen = Framework2D_LockBuffer(1);
359 PicoDrawSetColorFormat(1);
360 PicoScan = EmuScan16;
361 PicoScan((unsigned) -1, NULL);
365 Framework2D_UnlockBuffer();
369 currentConfig.EmuOpt = eo_old;
373 static void RunEvents(unsigned int which)
375 if (which & 0x1800) // save or load (but not both)
380 FrameworkAudio_SetPause(1);
381 if (giz_screen == NULL)
382 giz_screen = Framework2D_LockBuffer(1);
383 if ( emu_checkSaveFile(state_slot) &&
384 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
385 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save
388 blit("", (which & 0x1000) ? "LOAD STATE? (PLAY=yes, STOP=no)" : "OVERWRITE SAVE? (PLAY=yes, STOP=no)");
389 while( !((keys = Framework_PollGetButtons()) & (BTN_PLAY|BTN_STOP)) )
391 if (keys & BTN_STOP) do_it = 0;
392 while( ((keys = Framework_PollGetButtons()) & (BTN_PLAY|BTN_STOP)) ) // wait for release
399 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
400 PicoStateProgressCB = emu_stateCb;
401 emu_SaveLoadGame((which & 0x1000) >> 12, 0);
402 PicoStateProgressCB = NULL;
407 FrameworkAudio_SetPause(0);
410 if (which & 0x0400) // switch renderer
412 if (PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
413 else { PicoOpt|= 0x10; currentConfig.EmuOpt &= ~0x80; }
418 strcpy(noticeMsg, " 8bit fast renderer");
419 } else if (currentConfig.EmuOpt&0x80) {
420 strcpy(noticeMsg, "16bit accurate renderer");
422 strcpy(noticeMsg, " 8bit accurate renderer");
425 noticeMsgTime = GetTickCount();
431 if(state_slot < 0) state_slot = 9;
434 if(state_slot > 9) state_slot = 0;
436 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
437 noticeMsgTime = GetTickCount();
441 static void updateKeys(void)
443 unsigned int keys, allActions[2] = { 0, 0 }, events;
444 static unsigned int prevEvents = 0;
447 keys = Framework_PollGetButtons();
449 engineState = PGS_Menu;
451 keys &= CONFIGURABLE_KEYS;
453 for (i = 0; i < 32; i++)
457 int pl, acts = currentConfig.KeyBinds[i];
459 pl = (acts >> 16) & 1;
460 if (combo_keys & (1 << i))
462 int u = i+1, acts_c = acts & combo_acts;
463 // let's try to find the other one
466 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {
467 allActions[pl] |= acts_c;
468 keys &= ~((1 << i) | (1 << u));
471 // add non-combo actions if combo ones were not found
472 if (!acts_c || u == 32)
473 allActions[pl] |= acts & ~combo_acts;
475 allActions[pl] |= acts;
480 PicoPad[0] = (unsigned short) allActions[0];
481 PicoPad[1] = (unsigned short) allActions[1];
483 events = (allActions[0] | allActions[1]) >> 16;
485 // volume is treated in special way and triggered every frame
486 if ((events & 0x6000) && PsndOut != NULL)
488 int vol = currentConfig.volume;
489 if (events & 0x2000) {
490 if (vol < 100) vol++;
494 FrameworkAudio_SetVolume(vol, vol);
495 sprintf(noticeMsg, "VOL: %02i ", vol);
496 noticeMsgTime = GetTickCount();
497 currentConfig.volume = vol;
500 events &= ~prevEvents;
501 if (events) RunEvents(events);
502 if (movie_data) emu_updateMovie();
504 prevEvents = (allActions[0] | allActions[1]) >> 16;
507 static void find_combos(void)
511 // find out which keys and actions are combos
512 combo_keys = combo_acts = 0;
513 for (act = 0; act < 32; act++)
515 int keyc = 0, keyc2 = 0;
516 if (act == 16 || act == 17) continue; // player2 flag
519 for (u = 0; u < 32; u++)
520 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;
524 for (u = 0; u < 32; u++)
525 if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1
526 (currentConfig.KeyBinds[u] & (1 << act))) keyc++;
527 for (u = 0; u < 32; u++)
528 if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2
529 (currentConfig.KeyBinds[u] & (1 << act))) keyc2++;
530 if (keyc2 > keyc) keyc = keyc2;
534 // loop again and mark those keys and actions as combo
535 for (u = 0; u < 32; u++)
537 if (currentConfig.KeyBinds[u] & (1 << act)) {
538 combo_keys |= 1 << u;
539 combo_acts |= 1 << act;
547 static void simpleWait(DWORD until)
552 tval = GetTickCount();
553 diff = (int)until - (int)tval;
557 while ((tval = GetTickCount()) < until && until - tval < 512) // some simple overflow detection
558 spend_cycles(1024*2);
563 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
564 char fpsbuff[24]; // fps count c string
565 DWORD tval, tval_prev = 0, tval_thissec = 0; // timing
566 int frames_done = 0, frames_shown = 0, oldmodes = 0, sec_ms = 1000;
567 int target_fps, target_frametime, lim_time, tval_diff, i;
570 lprintf("entered emu_Loop()\n");
574 // make sure we are in correct mode
576 if (currentConfig.scaling) PicoOpt|=0x4000;
577 else PicoOpt&=~0x4000;
579 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
582 // pal/ntsc might have changed, reset related stuff
583 target_fps = Pico.m.pal ? 50 : 60;
584 target_frametime = Pico.m.pal ? (1000<<8)/50 : (1000<<8)/60+1;
588 if (PicoMCD & 1) PicoCDBufferInit();
590 // prepare sound stuff
592 if (currentConfig.EmuOpt & 4)
594 int ret, snd_excess_add, stereo;
595 if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) {
596 PsndRerate(Pico.m.frame_count ? 1 : 0);
598 stereo=(PicoOpt&8)>>3;
599 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
600 snd_cbuf_samples = (PsndRate<<stereo) * 16 / target_fps;
601 lprintf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
602 PsndRate, PsndLen, snd_excess_add, stereo, Pico.m.pal);
603 ret = FrameworkAudio_Init(PsndRate, snd_cbuf_samples, stereo);
605 lprintf("FrameworkAudio_Init() failed: %i\n", ret);
606 sprintf(noticeMsg, "sound init failed (%i), snd disabled", ret);
607 noticeMsgTime = GetTickCount();
608 currentConfig.EmuOpt &= ~4;
610 FrameworkAudio_SetVolume(currentConfig.volume, currentConfig.volume);
611 PicoWriteSound = updateSound;
612 snd_cbuff = FrameworkAudio_56448Buffer();
613 PsndOut = snd_cbuff + snd_cbuf_samples / 2; // start writing at the middle
615 PsndRate_old = PsndRate;
616 PicoOpt_old = PicoOpt;
617 pal_old = Pico.m.pal;
622 while (engineState == PGS_Running)
626 tval = GetTickCount();
627 if (reset_timing || tval < tval_prev) {
628 //stdbg("timing reset");
631 frames_shown = frames_done = 0;
634 // show notice message?
636 static int noticeMsgSum;
637 if (tval - noticeMsgTime > 2000) { // > 2.0 sec
642 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
643 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
648 // check for mode changes
649 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
650 if (modes != oldmodes) {
656 if (tval - tval_thissec >= sec_ms)
659 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
662 bench_fps_s = bench_fps;
663 bf[bfp++ & 3] = bench_fps;
666 bench_fps += frames_shown;
667 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
669 if(currentConfig.EmuOpt & 2)
670 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
672 //tval_thissec += 1000;
673 tval_thissec += sec_ms;
677 /* some code which tries to sync things to audio clock, the dirty way */
678 static int audio_skew_prev = 0;
679 int audio_skew, adj, co = 9, shift = 7;
680 audio_skew = snd_all_samples*2 - FrameworkAudio_BufferPos();
681 if (PsndRate == 22050) co = 10;
682 if (PsndRate > 22050) co = 11;
683 if (PicoOpt&8) shift++;
684 if (audio_skew < 0) {
685 adj = -((-audio_skew) >> shift);
686 if (audio_skew > -(6<<co)) adj>>=1;
687 if (audio_skew > -(4<<co)) adj>>=1;
688 if (audio_skew > -(2<<co)) adj>>=1;
689 if (audio_skew > audio_skew_prev) adj>>=2; // going up already
691 adj = audio_skew >> shift;
692 if (audio_skew < (6<<co)) adj>>=1;
693 if (audio_skew < (4<<co)) adj>>=1;
694 if (audio_skew < (2<<co)) adj>>=1;
695 if (audio_skew < audio_skew_prev) adj>>=2;
697 audio_skew_prev = audio_skew;
698 target_frametime += adj;
699 sec_ms = (target_frametime * target_fps) >> 8;
700 //stdbg("%i %i %i", audio_skew, adj, sec_ms);
701 frames_done = frames_shown = 0;
703 else if (currentConfig.Frameskip < 0) {
704 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
705 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
706 if (frames_shown > frames_done) frames_shown = frames_done;
708 frames_done = frames_shown = 0;
712 sprintf(fpsbuff, "%i", Pico.m.frame_count);
716 lim_time = (frames_done+1) * target_frametime;
717 if (currentConfig.Frameskip >= 0) // frameskip enabled
719 for (i = 0; i < currentConfig.Frameskip; i++) {
721 SkipFrame(); frames_done++;
722 if (PsndOut) { // do framelimitting if sound is enabled
724 tval = GetTickCount();
725 tval_diff = (int)(tval - tval_thissec) << 8;
726 if (tval_diff < lim_time) // we are too fast
727 simpleWait(tval + ((lim_time - tval_diff)>>8));
729 lim_time += target_frametime;
732 else // auto frameskip
735 tval = GetTickCount();
736 tval_diff = (int)(tval - tval_thissec) << 8;
737 if (tval_diff > lim_time)
739 // no time left for this frame - skip
740 if (tval_diff - lim_time >= (300<<8)) {
741 /* something caused a slowdown for us (disk access? cache flush?)
742 * try to recover by resetting timing... */
747 SkipFrame(); frames_done++;
754 if (currentConfig.EmuOpt&0x80)
755 /* be sure correct framebuffer is locked */
756 giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1);
759 PicoScan((unsigned) -1, NULL);
763 if (giz_screen == NULL)
764 giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1);
766 blit(fpsbuff, notice);
768 if (giz_screen != NULL) {
769 Framework2D_UnlockBuffer();
773 if (currentConfig.EmuOpt&0x2000)
774 Framework2D_WaitVSync();
776 if (currentConfig.EmuOpt&0x8000)
780 tval = GetTickCount();
781 tval_diff = (int)(tval - tval_thissec) << 8;
783 if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300<<8)) // slowdown detection
785 else if (PsndOut != NULL || currentConfig.Frameskip < 0)
787 // sleep if we are still too fast
788 if (tval_diff < lim_time)
791 simpleWait(tval + ((lim_time - tval_diff) >> 8));
795 frames_done++; frames_shown++;
799 if (PicoMCD & 1) PicoCDBufferFree();
801 if (PsndOut != NULL) {
802 PsndOut = snd_cbuff = NULL;
803 FrameworkAudio_Close();
807 if ((currentConfig.EmuOpt & 1) && SRam.changed) {
808 emu_stateCb("Writing SRAM/BRAM..");
809 emu_SaveLoadGame(0, 1);
815 void emu_ResetGame(void)