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"
13 #include "../common/config.h"
17 #include "asm_utils.h"
19 #include <pico/pico_int.h>
27 // main 300K gfx-related buffer. Used by menu and renderers.
28 unsigned char gfx_buffer[321*240*2*2];
30 unsigned char *PicoDraw2FB = gfx_buffer; // temporary buffer for alt renderer ( (8+320)*(8+240+8) )
33 static DWORD noticeMsgTime = 0;
34 static short *snd_cbuff = NULL;
35 static int snd_cbuf_samples = 0, snd_all_samples = 0;
38 static void blit(const char *fps, const char *notice);
39 static void clearArea(int full);
41 void plat_status_msg(const char *format, ...)
44 noticeMsgTime = GetTickCount();
47 int emu_getMainDir(char *dst, int len)
49 if (len > 0) *dst = 0;
54 static void emu_msg_cb(const char *msg)
56 if (giz_screen != NULL) fb_unlock();
57 giz_screen = fb_lock(1);
59 memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
60 emu_textOut16(4, 232, msg);
61 noticeMsgTime = GetTickCount() - 2000;
63 /* assumption: emu_msg_cb gets called only when something slow is about to happen */
67 giz_screen = fb_lock((currentConfig.EmuOpt&0x8000) ? 0 : 1);
70 void emu_stateCb(const char *str)
72 if (giz_screen != NULL) fb_unlock();
73 giz_screen = fb_lock(1);
81 Sleep(0); /* yield the CPU, the system may need it */
84 static void emu_msg_tray_open(void)
86 strcpy(noticeMsg, "CD tray opened");
87 noticeMsgTime = GetTickCount();
93 // make dirs for saves, cfgs, etc.
100 PicoMessage = emu_msg_cb;
101 PicoMCDopenTray = emu_msg_tray_open;
102 PicoMCDcloseTray = menu_loop_tray;
105 void emu_Deinit(void)
108 if ((currentConfig.EmuOpt & 1) && SRam.changed) {
109 emu_SaveLoadGame(0, 1);
113 if (!(currentConfig.EmuOpt & 0x20))
114 config_writelrom(PicoConfigFile);
119 void emu_prepareDefaultConfig(void)
121 memset(&defaultConfig, 0, sizeof(defaultConfig));
122 defaultConfig.EmuOpt = 0x1d | 0x680; // | confirm_save, cd_leds, 16bit rend
123 defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;
124 defaultConfig.s_PsndRate = 22050;
125 defaultConfig.s_PicoRegion = 0; // auto
126 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
127 defaultConfig.s_PicoCDBuffers = 0;
128 defaultConfig.Frameskip = -1; // auto
129 defaultConfig.volume = 50;
130 defaultConfig.KeyBinds[ 2] = 1<<0; // SACB RLDU
131 defaultConfig.KeyBinds[ 3] = 1<<1;
132 defaultConfig.KeyBinds[ 0] = 1<<2;
133 defaultConfig.KeyBinds[ 1] = 1<<3;
134 defaultConfig.KeyBinds[ 5] = 1<<4;
135 defaultConfig.KeyBinds[ 6] = 1<<5;
136 defaultConfig.KeyBinds[ 7] = 1<<6;
137 defaultConfig.KeyBinds[ 4] = 1<<7;
138 defaultConfig.KeyBinds[13] = 1<<26; // switch rend
139 defaultConfig.KeyBinds[ 8] = 1<<27; // save state
140 defaultConfig.KeyBinds[ 9] = 1<<28; // load state
141 defaultConfig.KeyBinds[12] = 1<<29; // vol up
142 defaultConfig.KeyBinds[11] = 1<<30; // vol down
143 defaultConfig.scaling = 0;
144 defaultConfig.turbo_rate = 15;
148 static int EmuScanBegin16(unsigned int num)
150 if (!(Pico.video.reg[1]&8)) num += 8;
151 DrawLineDest = (unsigned short *) giz_screen + 321 * num;
153 if ((currentConfig.EmuOpt&0x4000) && (num&1) == 0) // (Pico.m.frame_count&1))
154 return 1; // skip next line
159 static int EmuScanBegin8(unsigned int num)
161 // draw like the fast renderer
162 if (!(Pico.video.reg[1]&8)) num += 8;
163 HighCol = gfx_buffer + 328 * num;
168 static void osd_text(int x, int y, const char *text)
170 int len = strlen(text) * 8 / 2;
172 for (h = 0; h < 8; h++) {
173 p = (int *) ((unsigned short *) giz_screen+x+321*(y+h));
174 p = (int *) ((int)p & ~3); // align
177 emu_textOut16(x, y, text);
181 void log1(void *p1, void *p2)
183 lprintf("%p %p %p\n", p1, p2, DrawLineDest);
187 static void cd_leds(void)
189 static int old_reg = 0;
190 unsigned int col_g, col_r, *p;
192 if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change
193 old_reg = Pico_mcd->s68k_regs[0];
195 p = (unsigned int *)((short *)giz_screen + 321*2+4+2);
196 col_g = (old_reg & 2) ? 0x06000600 : 0;
197 col_r = (old_reg & 1) ? 0xc000c000 : 0;
198 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 321/2 - 12/2 + 1;
199 *p++ = col_g; p+=3; *p++ = col_r; p += 321/2 - 10/2;
200 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
204 static short localPal[0x100];
206 static void blit(const char *fps, const char *notice)
208 int emu_opt = currentConfig.EmuOpt;
212 int lines_flags = 224;
213 // 8bit fast renderer
214 if (Pico.m.dirtyPal) {
216 vidConvCpyRGB565(localPal, Pico.cram, 0x40);
219 if (PicoRead16Hook == PicoSVPRead16)
220 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
221 if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000;
222 if (currentConfig.EmuOpt&0x4000)
223 lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000;
224 vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags);
226 else if (!(emu_opt&0x80))
229 // 8bit accurate renderer
230 if (Pico.m.dirtyPal) {
232 vidConvCpyRGB565(localPal, Pico.cram, 0x40);
233 if (Pico.video.reg[0xC]&8) { // shadow/hilight mode
234 //vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
235 //vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); // TODO?
236 memcpy32((void *)(localPal+0xc0), (void *)(localPal+0x40), 0x40*2/4);
237 localPal[0xc0] = 0x0600;
238 localPal[0xd0] = 0xc000;
239 localPal[0xe0] = 0x0000; // reserved pixels for OSD
240 localPal[0xf0] = 0xffff;
243 else if (rendstatus & 0x20) { // mid-frame palette changes
244 vidConvCpyRGB565(localPal+0x40, HighPal, 0x40);
245 vidConvCpyRGB565(localPal+0x80, HighPal+0x40, 0x40);
248 lines_flags = (Pico.video.reg[1]&8) ? 240 : 224;
249 if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000;
250 if (currentConfig.EmuOpt&0x4000)
251 lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000;
252 vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags);
255 if (notice || (emu_opt & 2)) {
257 if (notice) osd_text(4, h, notice);
258 if (emu_opt & 2) osd_text(OSD_FPS_X, h, fps);
261 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
265 // clears whole screen or just the notice area (in all buffers)
266 static void clearArea(int full)
268 if (giz_screen == NULL)
269 giz_screen = fb_lock(1);
270 if (full) memset32(giz_screen, 0, 320*240*2/4);
271 else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
273 if (currentConfig.EmuOpt&0x8000) {
275 giz_screen = fb_lock(0);
276 if (full) memset32(giz_screen, 0, 320*240*2/4);
277 else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
281 static void vidResetMode(void)
283 giz_screen = fb_lock(1);
286 } else if (currentConfig.EmuOpt&0x80) {
287 PicoDrawSetColorFormat(1);
288 PicoScanBegin = EmuScanBegin16;
290 PicoDrawSetColorFormat(-1);
291 PicoScanBegin = EmuScanBegin8;
293 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) {
294 // setup pal for 8-bit modes
295 localPal[0xc0] = 0x0600;
296 localPal[0xd0] = 0xc000;
297 localPal[0xe0] = 0x0000; // reserved pixels for OSD
298 localPal[0xf0] = 0xffff;
302 memset32(giz_screen, 0, 321*240*2/4);
303 if (currentConfig.EmuOpt&0x8000) {
305 giz_screen = fb_lock(0);
306 memset32(giz_screen, 0, 321*240*2/4);
314 static void stdbg(const char *fmt, ...)
319 sprintf(noticeMsg, "%x ", cnt++);
321 vsnprintf(noticeMsg+strlen(noticeMsg), sizeof(noticeMsg)-strlen(noticeMsg), fmt, vl);
324 noticeMsgTime = GetTickCount();
328 static void updateSound(int len)
330 if (PicoOpt&8) len<<=1;
332 snd_all_samples += len;
334 if (PsndOut - snd_cbuff >= snd_cbuf_samples)
336 //if (PsndOut - snd_cbuff != snd_cbuf_samples)
337 // stdbg("snd diff is %i, not %i", PsndOut - snd_cbuff, snd_cbuf_samples);
343 static void SkipFrame(void)
350 /* forced frame to front buffer */
351 void emu_forcedFrame(int opts)
353 int po_old = PicoOpt;
354 int eo_old = currentConfig.EmuOpt;
357 PicoOpt |= opts|POPT_ACC_SPRITES;
358 currentConfig.EmuOpt |= 0x80;
360 if (giz_screen == NULL)
361 giz_screen = fb_lock(1);
363 PicoDrawSetColorFormat(1);
364 PicoScanBegin = EmuScanBegin16;
372 currentConfig.EmuOpt = eo_old;
376 static void RunEvents(unsigned int which)
378 if (which & 0x1800) // save or load (but not both)
383 FrameworkAudio_SetPause(1);
384 if (giz_screen == NULL)
385 giz_screen = fb_lock(1);
386 if ( emu_checkSaveFile(state_slot) &&
387 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
388 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save
391 blit("", (which & 0x1000) ? "LOAD STATE? (PLAY=yes, STOP=no)" : "OVERWRITE SAVE? (PLAY=yes, STOP=no)");
392 while( !((keys = Framework_PollGetButtons()) & (PBTN_PLAY|PBTN_STOP)) )
394 if (keys & PBTN_STOP) do_it = 0;
395 while( ((keys = Framework_PollGetButtons()) & (PBTN_PLAY|PBTN_STOP)) ) // wait for release
402 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
403 PicoStateProgressCB = emu_stateCb;
404 emu_SaveLoadGame((which & 0x1000) >> 12, 0);
405 PicoStateProgressCB = NULL;
410 FrameworkAudio_SetPause(0);
413 if (which & 0x0400) // switch renderer
415 if (PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
416 else { PicoOpt|= 0x10; currentConfig.EmuOpt &= ~0x80; }
421 strcpy(noticeMsg, " 8bit fast renderer");
422 } else if (currentConfig.EmuOpt&0x80) {
423 strcpy(noticeMsg, "16bit accurate renderer");
425 strcpy(noticeMsg, " 8bit accurate renderer");
428 noticeMsgTime = GetTickCount();
434 if(state_slot < 0) state_slot = 9;
437 if(state_slot > 9) state_slot = 0;
439 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
440 noticeMsgTime = GetTickCount();
444 static void updateKeys(void)
446 unsigned int keys, allActions[2] = { 0, 0 }, events;
447 static unsigned int prevEvents = 0;
450 /* FIXME: port to input fw, merge with emu.c:emu_update_input() */
451 keys = Framework_PollGetButtons();
452 if (keys & PBTN_HOME)
453 engineState = PGS_Menu;
455 keys &= CONFIGURABLE_KEYS;
457 PicoPad[0] = allActions[0] & 0xfff;
458 PicoPad[1] = allActions[1] & 0xfff;
460 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);
461 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);
463 events = (allActions[0] | allActions[1]) >> 16;
465 // volume is treated in special way and triggered every frame
466 if ((events & 0x6000) && PsndOut != NULL)
468 int vol = currentConfig.volume;
469 if (events & 0x2000) {
470 if (vol < 100) vol++;
474 FrameworkAudio_SetVolume(vol, vol);
475 sprintf(noticeMsg, "VOL: %02i ", vol);
476 noticeMsgTime = GetTickCount();
477 currentConfig.volume = vol;
480 events &= ~prevEvents;
481 if (events) RunEvents(events);
482 if (movie_data) emu_updateMovie();
484 prevEvents = (allActions[0] | allActions[1]) >> 16;
487 void emu_platformDebugCat(char *str)
492 static void simpleWait(DWORD until)
497 tval = GetTickCount();
498 diff = (int)until - (int)tval;
502 while ((tval = GetTickCount()) < until && until - tval < 512) // some simple overflow detection
503 spend_cycles(1024*2);
508 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
509 char fpsbuff[24]; // fps count c string
510 DWORD tval, tval_prev = 0, tval_thissec = 0; // timing
511 int frames_done = 0, frames_shown = 0, oldmodes = 0, sec_ms = 1000;
512 int target_fps, target_frametime, lim_time, tval_diff, i;
515 lprintf("entered emu_Loop()\n");
519 // make sure we are in correct mode
521 if (currentConfig.scaling) PicoOpt|=0x4000;
522 else PicoOpt&=~0x4000;
524 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
526 // pal/ntsc might have changed, reset related stuff
527 target_fps = Pico.m.pal ? 50 : 60;
528 target_frametime = Pico.m.pal ? (1000<<8)/50 : (1000<<8)/60+1;
532 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();
534 // prepare sound stuff
536 if (currentConfig.EmuOpt & 4)
538 int ret, snd_excess_add, stereo;
539 if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) {
540 PsndRerate(Pico.m.frame_count ? 1 : 0);
542 stereo=(PicoOpt&8)>>3;
543 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
544 snd_cbuf_samples = (PsndRate<<stereo) * 16 / target_fps;
545 lprintf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
546 PsndRate, PsndLen, snd_excess_add, stereo, Pico.m.pal);
547 ret = FrameworkAudio_Init(PsndRate, snd_cbuf_samples, stereo);
549 lprintf("FrameworkAudio_Init() failed: %i\n", ret);
550 sprintf(noticeMsg, "sound init failed (%i), snd disabled", ret);
551 noticeMsgTime = GetTickCount();
552 currentConfig.EmuOpt &= ~4;
554 FrameworkAudio_SetVolume(currentConfig.volume, currentConfig.volume);
555 PicoWriteSound = updateSound;
556 snd_cbuff = FrameworkAudio_56448Buffer();
557 PsndOut = snd_cbuff + snd_cbuf_samples / 2; // start writing at the middle
559 PsndRate_old = PsndRate;
560 PicoOpt_old = PicoOpt;
561 pal_old = Pico.m.pal;
566 while (engineState == PGS_Running)
570 tval = GetTickCount();
571 if (reset_timing || tval < tval_prev) {
572 //stdbg("timing reset");
575 frames_shown = frames_done = 0;
578 // show notice message?
580 static int noticeMsgSum;
581 if (tval - noticeMsgTime > 2000) { // > 2.0 sec
586 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
587 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
592 // check for mode changes
593 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
594 if (modes != oldmodes) {
600 if (tval - tval_thissec >= sec_ms)
603 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
606 bench_fps_s = bench_fps;
607 bf[bfp++ & 3] = bench_fps;
610 bench_fps += frames_shown;
611 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
613 if(currentConfig.EmuOpt & 2)
614 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
616 //tval_thissec += 1000;
617 tval_thissec += sec_ms;
621 /* some code which tries to sync things to audio clock, the dirty way */
622 static int audio_skew_prev = 0;
623 int audio_skew, adj, co = 9, shift = 7;
624 audio_skew = snd_all_samples*2 - FrameworkAudio_BufferPos();
625 if (PsndRate == 22050) co = 10;
626 if (PsndRate > 22050) co = 11;
627 if (PicoOpt&8) shift++;
628 if (audio_skew < 0) {
629 adj = -((-audio_skew) >> shift);
630 if (audio_skew > -(6<<co)) adj>>=1;
631 if (audio_skew > -(4<<co)) adj>>=1;
632 if (audio_skew > -(2<<co)) adj>>=1;
633 if (audio_skew > audio_skew_prev) adj>>=2; // going up already
635 adj = audio_skew >> shift;
636 if (audio_skew < (6<<co)) adj>>=1;
637 if (audio_skew < (4<<co)) adj>>=1;
638 if (audio_skew < (2<<co)) adj>>=1;
639 if (audio_skew < audio_skew_prev) adj>>=2;
641 audio_skew_prev = audio_skew;
642 target_frametime += adj;
643 sec_ms = (target_frametime * target_fps) >> 8;
644 //stdbg("%i %i %i", audio_skew, adj, sec_ms);
645 frames_done = frames_shown = 0;
647 else if (currentConfig.Frameskip < 0) {
648 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
649 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
650 if (frames_shown > frames_done) frames_shown = frames_done;
652 frames_done = frames_shown = 0;
656 sprintf(fpsbuff, "%i", Pico.m.frame_count);
660 lim_time = (frames_done+1) * target_frametime;
661 if (currentConfig.Frameskip >= 0) // frameskip enabled
663 for (i = 0; i < currentConfig.Frameskip; i++) {
665 SkipFrame(); frames_done++;
666 if (PsndOut) { // do framelimitting if sound is enabled
668 tval = GetTickCount();
669 tval_diff = (int)(tval - tval_thissec) << 8;
670 if (tval_diff < lim_time) // we are too fast
671 simpleWait(tval + ((lim_time - tval_diff)>>8));
673 lim_time += target_frametime;
676 else // auto frameskip
679 tval = GetTickCount();
680 tval_diff = (int)(tval - tval_thissec) << 8;
681 if (tval_diff > lim_time)
683 // no time left for this frame - skip
684 if (tval_diff - lim_time >= (300<<8)) {
685 /* something caused a slowdown for us (disk access? cache flush?)
686 * try to recover by resetting timing... */
691 SkipFrame(); frames_done++;
698 if (currentConfig.EmuOpt&0x80)
699 /* be sure correct framebuffer is locked */
700 giz_screen = fb_lock((currentConfig.EmuOpt&0x8000) ? 0 : 1);
704 if (giz_screen == NULL)
705 giz_screen = fb_lock((currentConfig.EmuOpt&0x8000) ? 0 : 1);
707 blit(fpsbuff, notice);
709 if (giz_screen != NULL) {
714 if (currentConfig.EmuOpt&0x2000)
715 Framework2D_WaitVSync();
717 if (currentConfig.EmuOpt&0x8000)
721 tval = GetTickCount();
722 tval_diff = (int)(tval - tval_thissec) << 8;
724 if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300<<8)) // slowdown detection
726 else if (PsndOut != NULL || currentConfig.Frameskip < 0)
728 // sleep if we are still too fast
729 if (tval_diff < lim_time)
732 simpleWait(tval + ((lim_time - tval_diff) >> 8));
736 frames_done++; frames_shown++;
740 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();
742 if (PsndOut != NULL) {
743 PsndOut = snd_cbuff = NULL;
744 FrameworkAudio_Close();
748 if ((currentConfig.EmuOpt & 1) && SRam.changed) {
749 emu_stateCb("Writing SRAM/BRAM..");
750 emu_SaveLoadGame(0, 1);
756 void emu_ResetGame(void)