3 #include <sys/syslimits.h> // PATH_MAX
5 #include <pspthreadman.h>
6 #include <pspdisplay.h>
14 #include "../common/emu.h"
15 #include "../common/lprintf.h"
16 #include "../../Pico/PicoInt.h"
20 // additional pspaudio imports, credits to crazyc
21 int sceAudio_38553111(unsigned short samples, unsigned short freq, char unknown); // play with conversion?
22 int sceAudio_5C37C0AE(void); // end play?
23 int sceAudio_E0727056(int volume, void *buffer); // blocking output
24 int sceAudioOutput2GetRestSample();
27 char romFileName[PATH_MAX];
28 unsigned char *PicoDraw2FB = (unsigned char *)VRAM_CACHED_STUFF + 8; // +8 to be able to skip border with 1 quadword..
31 static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos
32 static unsigned int noticeMsgTime = 0;
33 int reset_timing = 0; // do we need this?
36 static void sound_init(void);
37 static void sound_deinit(void);
38 static void blit2(const char *fps, const char *notice);
39 static void clearArea(int full);
41 void emu_noticeMsgUpdated(void)
43 noticeMsgTime = sceKernelGetSystemTimeLow();
46 void emu_getMainDir(char *dst, int len)
48 if (len > 0) *dst = 0;
51 static void osd_text(int x, const char *text, int is_active)
53 unsigned short *screen = is_active ? psp_video_get_active_fb() : psp_screen;
54 int len = strlen(text) * 8 / 2;
57 for (h = 0; h < 8; h++) {
58 p = (int *) (screen+x+512*(264+h));
59 p = (int *) ((int)p & ~3); // align
62 if (is_active) { tmp = psp_screen; psp_screen = screen; } // nasty pointer tricks
63 emu_textOut16(x, 264, text);
64 if (is_active) psp_screen = tmp;
67 void emu_msg_cb(const char *msg)
70 noticeMsgTime = sceKernelGetSystemTimeLow() - 2000000;
72 /* assumption: emu_msg_cb gets called only when something slow is about to happen */
76 static void emu_msg_tray_open(void)
78 strcpy(noticeMsg, "CD tray opened");
79 noticeMsgTime = sceKernelGetSystemTimeLow();
85 // make dirs for saves, cfgs, etc.
94 PicoMessage = emu_msg_cb;
95 PicoMCDopenTray = emu_msg_tray_open;
96 PicoMCDcloseTray = menu_loop_tray;
102 if ((currentConfig.EmuOpt & 1) && SRam.changed) {
103 emu_SaveLoadGame(0, 1);
107 if (!(currentConfig.EmuOpt & 0x20)) {
108 FILE *f = fopen(PicoConfigFile, "r+b");
109 if (!f) emu_WriteConfig(0);
111 // if we already have config, reload it, except last ROM
112 fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);
113 fread(¤tConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);
114 fseek(f, 0, SEEK_SET);
115 fwrite(¤tConfig, 1, sizeof(currentConfig), f);
125 void emu_setDefaultConfig(void)
127 memset(¤tConfig, 0, sizeof(currentConfig));
128 currentConfig.lastRomFile[0] = 0;
129 currentConfig.EmuOpt = 0x1f | 0x680; // | confirm_save, cd_leds, 16bit rend
130 currentConfig.PicoOpt = 0x0f | 0xc00; // | cd_pcm, cd_cdda
131 currentConfig.PsndRate = 22050;
132 currentConfig.PicoRegion = 0; // auto
133 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP
134 currentConfig.Frameskip = -1; // auto
135 currentConfig.volume = 50;
136 currentConfig.CPUclock = 222;
137 currentConfig.KeyBinds[ 4] = 1<<0; // SACB RLDU
138 currentConfig.KeyBinds[ 6] = 1<<1;
139 currentConfig.KeyBinds[ 7] = 1<<2;
140 currentConfig.KeyBinds[ 5] = 1<<3;
141 currentConfig.KeyBinds[14] = 1<<4;
142 currentConfig.KeyBinds[13] = 1<<5;
143 currentConfig.KeyBinds[15] = 1<<6;
144 currentConfig.KeyBinds[ 3] = 1<<7;
145 currentConfig.KeyBinds[ 8] = 1<<27; // save state
146 currentConfig.KeyBinds[ 9] = 1<<28; // load state
147 currentConfig.PicoCDBuffers = 0;
148 currentConfig.scaling = 1; // bilinear filtering for psp
149 currentConfig.scale = currentConfig.hscale32 = currentConfig.hscale40 = 1.0;
153 extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);
161 static struct Vertex __attribute__((aligned(4))) g_vertices[2];
162 static unsigned short __attribute__((aligned(16))) localPal[0x100];
163 static int dynamic_palette = 0, need_pal_upload = 0, blit_16bit_mode = 0;
164 static int fbimg_offs = 0;
166 static void set_scaling_params(void)
168 int src_width, fbimg_width, fbimg_height, fbimg_xoffs, fbimg_yoffs;
169 g_vertices[0].x = g_vertices[0].y =
170 g_vertices[0].z = g_vertices[1].z = 0;
172 fbimg_height = (int)(240.0 * currentConfig.scale + 0.5);
173 if (Pico.video.reg[12] & 1) {
174 fbimg_width = (int)(320.0 * currentConfig.scale * currentConfig.hscale40 + 0.5);
177 fbimg_width = (int)(256.0 * currentConfig.scale * currentConfig.hscale32 + 0.5);
181 if (fbimg_width >= 480) {
182 g_vertices[0].u = (fbimg_width-480)/2;
183 g_vertices[1].u = src_width - (fbimg_width-480)/2;
188 g_vertices[1].u = src_width;
189 fbimg_xoffs = 240 - fbimg_width/2;
192 if (fbimg_height >= 272) {
193 g_vertices[0].v = (fbimg_height-272)/2;
194 g_vertices[1].v = 240 - (fbimg_height-272)/2;
199 g_vertices[1].v = 240;
200 fbimg_yoffs = 136 - fbimg_height/2;
203 g_vertices[1].x = fbimg_width;
204 g_vertices[1].y = fbimg_height;
205 if (fbimg_xoffs < 0) fbimg_xoffs = 0;
206 if (fbimg_yoffs < 0) fbimg_yoffs = 0;
207 fbimg_offs = (fbimg_yoffs*512 + fbimg_xoffs) * 2; // dst is always 16bit
210 lprintf("set_scaling_params:\n");
211 lprintf("offs: %i, %i\n", fbimg_xoffs, fbimg_yoffs);
212 lprintf("xy0, xy1: %i, %i; %i, %i\n", g_vertices[0].x, g_vertices[0].y, g_vertices[1].x, g_vertices[1].y);
213 lprintf("uv0, uv1: %i, %i; %i, %i\n", g_vertices[0].u, g_vertices[0].v, g_vertices[1].u, g_vertices[1].v);
217 static void do_pal_update(int allow_sh)
219 unsigned int *spal=(void *)Pico.cram;
220 unsigned int *dpal=(void *)localPal;
223 for (i = 0x3f/2; i >= 0; i--)
224 dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4);
226 if (allow_sh && (Pico.video.reg[0xC]&8)) // shadow/hilight?
229 for (i = 0x3f/2; i >= 0; i--)
230 dpal[0x20|i] = dpal[0x60|i] = (dpal[i]>>1)&0x738e738e;
232 for (i = 0x3f; i >= 0; i--) {
233 int t=localPal[i]&0xe71c;t+=0x4208;
235 if (t&0x800) t|=0x700;
236 if (t&0x10000) t|=0xe000;
238 localPal[0x80|i]=(unsigned short)t;
246 static void do_slowmode_lines(int line_to)
248 int line = 0, line_len = (Pico.video.reg[12]&1) ? 320 : 256;
249 unsigned short *dst = (unsigned short *)VRAM_STUFF + 512*240/2;
250 unsigned char *src = (unsigned char *)VRAM_CACHED_STUFF + 16;
251 if (!(Pico.video.reg[1]&8)) { line = 8; dst += 512*8; src += 512*8; }
253 for (; line < line_to; line++, dst+=512, src+=512)
254 amips_clut(dst, src, localPal, line_len);
257 static void EmuScanPrepare(void)
259 HighCol = (unsigned char *)VRAM_CACHED_STUFF + 8;
260 if (!(Pico.video.reg[1]&8)) HighCol += 8*512;
267 static int EmuScanSlow(unsigned int num, void *sdata)
269 if (!(Pico.video.reg[1]&8)) num += 8;
271 if (Pico.m.dirtyPal) {
272 if (!dynamic_palette) {
273 do_slowmode_lines(num);
279 if (dynamic_palette) {
280 int line_len = (Pico.video.reg[12]&1) ? 320 : 256;
281 void *dst = (char *)VRAM_STUFF + 512*240 + 512*2*num;
282 amips_clut(dst, HighCol + 8, localPal, line_len);
284 HighCol = (unsigned char *)VRAM_CACHED_STUFF + (num+1)*512 + 8;
289 static void blitscreen_clut(void)
291 int offs = fbimg_offs;
292 offs += (psp_screen == VRAM_FB0) ? VRAMOFFS_FB0 : VRAMOFFS_FB1;
294 sceGuSync(0,0); // sync with prev
295 sceGuStart(GU_DIRECT, guCmdList);
296 sceGuDrawBuffer(GU_PSM_5650, (void *)offs, 512); // point to back buffer
300 if (!blit_16bit_mode) {
301 sceGuTexMode(GU_PSM_5650, 0, 0, 0);
302 sceGuTexImage(0,512,512,512,(char *)VRAM_STUFF + 512*240);
309 if (blit_16bit_mode) {
310 sceGuClutMode(GU_PSM_5650,0,0xff,0);
311 sceGuTexMode(GU_PSM_T8,0,0,0); // 8-bit image
312 sceGuTexImage(0,512,512,512,(char *)VRAM_STUFF + 16);
316 if ((PicoOpt&0x10) && Pico.m.dirtyPal)
319 sceKernelDcacheWritebackAll();
321 if (need_pal_upload) {
323 sceGuClutLoad((256/8), localPal); // upload 32*8 entries (256)
328 if (g_vertices[0].u == 0 && g_vertices[1].u == g_vertices[1].x)
330 struct Vertex* vertices;
333 #define SLICE_WIDTH 32
334 for (x = 0; x < g_vertices[1].x; x += SLICE_WIDTH)
337 vertices = (struct Vertex*)sceGuGetMemory(2 * sizeof(struct Vertex));
338 memcpy(vertices, g_vertices, 2 * sizeof(struct Vertex));
339 vertices[0].u = vertices[0].x = x;
340 vertices[1].u = vertices[1].x = x + SLICE_WIDTH;
341 sceGuDrawArray(GU_SPRITES,GU_TEXTURE_16BIT|GU_VERTEX_16BIT|GU_TRANSFORM_2D,2,0,vertices);
343 // lprintf("listlen: %iB\n", sceGuCheckList()); // ~480 only
347 sceGuDrawArray(GU_SPRITES,GU_TEXTURE_16BIT|GU_VERTEX_16BIT|GU_TRANSFORM_2D,2,0,g_vertices);
353 static void cd_leds(void)
355 static int old_reg = 0;
356 unsigned int col_g, col_r, *p;
358 if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change
359 old_reg = Pico_mcd->s68k_regs[0];
361 p = (unsigned int *)((short *)psp_screen + 512*2+4+2);
362 col_g = (old_reg & 2) ? 0x06000600 : 0;
363 col_r = (old_reg & 1) ? 0xc000c000 : 0;
364 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 512/2 - 12/2;
365 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 512/2 - 12/2;
366 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
370 static void dbg_text(void)
375 sprintf(text, "sl: %i, 16b: %i", g_vertices[0].u == 0 && g_vertices[1].u == g_vertices[1].x, blit_16bit_mode);
376 len = strlen(text) * 8 / 2;
377 for (h = 0; h < 8; h++) {
378 p = (int *) ((unsigned short *) psp_screen+2+512*(256+h));
379 p = (int *) ((int)p & ~3); // align
382 emu_textOut16(2, 256, text);
386 /* called after rendering is done, but frame emulation is not finished */
393 // clear top and bottom trash
394 for (pd = PicoDraw2FB+8, i = 8; i > 0; i--, pd += 512)
395 memset32((int *)pd, 0xe0e0e0e0, 320/4);
396 for (pd = PicoDraw2FB+512*232+8, i = 8; i > 0; i--, pd += 512)
397 memset32((int *)pd, 0xe0e0e0e0, 320/4);
404 static void blit2(const char *fps, const char *notice)
406 int emu_opt = currentConfig.EmuOpt;
410 if (notice || (emu_opt & 2)) {
411 if (notice) osd_text(4, notice, 0);
412 if (emu_opt & 2) osd_text(OSD_FPS_X, fps, 0);
417 if ((emu_opt & 0x400) && (PicoMCD & 1))
423 // clears whole screen or just the notice area (in all buffers)
424 static void clearArea(int full)
427 memset32(psp_screen, 0, 512*272*2/4);
429 memset32(psp_screen, 0, 512*272*2/4);
430 memset32(VRAM_CACHED_STUFF, 0xe0e0e0e0, 512*240/4);
431 memset32((int *)VRAM_CACHED_STUFF+512*240/4, 0, 512*240*2/4);
433 void *fb = psp_video_get_active_fb();
434 memset32((int *)((char *)psp_screen + 512*264*2), 0, 512*8*2/4);
435 memset32((int *)((char *)fb + 512*264*2), 0, 512*8*2/4);
439 static void vidResetMode(void)
442 sceGuSync(0,0); // sync with prev
443 sceGuStart(GU_DIRECT, guCmdList);
445 sceGuClutMode(GU_PSM_5650,0,0xff,0);
446 sceGuTexMode(GU_PSM_T8,0,0,0); // 8-bit image
447 sceGuTexFunc(GU_TFX_REPLACE,GU_TCC_RGB);
448 if (currentConfig.scaling)
449 sceGuTexFilter(GU_LINEAR, GU_LINEAR);
450 else sceGuTexFilter(GU_NEAREST, GU_NEAREST);
451 sceGuTexScale(1.0f,1.0f);
452 sceGuTexOffset(0.0f,0.0f);
454 sceGuTexImage(0,512,512,512,(char *)VRAM_STUFF + 16);
457 PicoDrawSetColorFormat(-1);
458 PicoScan = EmuScanSlow;
462 blit_16bit_mode = dynamic_palette = 0;
465 set_scaling_params();
471 #define SOUND_BLOCK_SIZE_NTSC (2940*2) // 1024 // 1152
472 #define SOUND_BLOCK_SIZE_PAL (3528*2)
473 #define SOUND_BLOCK_COUNT 4
475 static short __attribute__((aligned(4))) sndBuffer[SOUND_BLOCK_SIZE_PAL*SOUND_BLOCK_COUNT + 44100/50*2];
476 static short *snd_playptr = NULL, *sndBuffer_endptr = NULL;
477 static int samples_made = 0, samples_done = 0, samples_block = 0;
478 static int sound_thread_exit = 0;
479 static SceUID sound_sem = -1;
481 static void writeSound(int len);
483 static int sound_thread(SceSize args, void *argp)
487 lprintf("sound_thread: started, priority %i\n", sceKernelGetThreadCurrentPriority());
489 while (!sound_thread_exit)
491 if (samples_made - samples_done < samples_block) {
493 //lprintf("sthr: wait... (%i/%i)\n", samples_done, samples_made);
494 ret = sceKernelWaitSema(sound_sem, 1, 0);
495 //lprintf("sthr: sceKernelWaitSema: %i\n", ret);
499 //lprintf("sthr: got data: %i\n", samples_made - samples_done);
501 ret = sceAudio_E0727056(PSP_AUDIO_VOLUME_MAX, snd_playptr);
503 samples_done += samples_block;
504 snd_playptr += samples_block;
505 if (snd_playptr >= sndBuffer_endptr)
506 snd_playptr = sndBuffer;
508 lprintf("sthr: outf: %i; pos %i/%i\n", ret, samples_done, samples_made);
511 lprintf("sthr: exit\n");
512 sceKernelExitDeleteThread(0);
516 static void sound_init(void)
520 sound_sem = sceKernelCreateSema("sndsem", 0, 0, 1, NULL);
521 if (sound_sem < 0) lprintf("sceKernelCreateSema() failed: %i\n", sound_sem);
523 sound_thread_exit = 0;
524 thid = sceKernelCreateThread("sndthread", sound_thread, 0x12, 0x10000, 0, NULL);
527 sceKernelStartThread(thid, 0, 0);
530 lprintf("sceKernelCreateThread failed: %i\n", thid);
533 static void sound_prepare(void)
535 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
538 samples_made = samples_done = 0;
540 if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) {
541 sound_rerate(Pico.m.frame_count ? 1 : 0);
543 stereo=(PicoOpt&8)>>3;
545 samples_block = Pico.m.pal ? SOUND_BLOCK_SIZE_PAL : SOUND_BLOCK_SIZE_NTSC;
546 if (PsndRate == 22050) samples_block /= 2;
547 else if (PsndRate == 11025) samples_block /= 4;
548 sndBuffer_endptr = &sndBuffer[samples_block*SOUND_BLOCK_COUNT];
550 lprintf("starting audio: %i, len: %i, stereo: %i, pal: %i, block samples: %i\n",
551 PsndRate, PsndLen, stereo, Pico.m.pal, samples_block);
553 while (sceAudioOutput2GetRestSample() > 0) psp_msleep(100);
555 ret = sceAudio_38553111(samples_block/2, PsndRate, 2); // seems to not need that stupid 64byte alignment
557 lprintf("sceAudio_38553111() failed: %i\n", ret);
558 sprintf(noticeMsg, "sound init failed (%i), snd disabled", ret);
559 noticeMsgTime = sceKernelGetSystemTimeLow();
560 currentConfig.EmuOpt &= ~4;
562 PicoWriteSound = writeSound;
563 memset32((int *)(void *)sndBuffer, 0, sizeof(sndBuffer)/4);
564 snd_playptr = sndBuffer_endptr - samples_block;
565 samples_made = samples_block; // send 1 empty block first..
567 PsndRate_old = PsndRate;
568 PicoOpt_old = PicoOpt;
569 pal_old = Pico.m.pal;
573 static void sound_end(void)
575 samples_made = samples_done = 0;
576 while (sceAudioOutput2GetRestSample() > 0)
581 static void sound_deinit(void)
583 sound_thread_exit = 1;
584 sceKernelSignalSema(sound_sem, 1);
585 sceKernelDeleteSema(sound_sem);
589 static void writeSound(int len)
592 if (PicoOpt&8) len<<=1;
595 /*if (PsndOut > sndBuffer_endptr) {
596 memcpy32((int *)(void *)sndBuffer, (int *)endptr, (PsndOut - endptr + 1) / 2);
597 PsndOut = &sndBuffer[PsndOut - endptr];
601 if (PsndOut >= sndBuffer_endptr)
604 // signal the snd thread
606 if (samples_made - samples_done >= samples_block) {
607 // lprintf("signal, %i/%i\n", samples_done, samples_made);
608 ret = sceKernelSignalSema(sound_sem, 1);
609 // lprintf("signal ret %i\n", ret);
614 static void SkipFrame(void)
621 void emu_forcedFrame(void)
623 int po_old = PicoOpt;
624 int eo_old = currentConfig.EmuOpt;
627 PicoOpt |= 0x4080; // soft_scale | acc_sprites
628 currentConfig.EmuOpt |= 0x80;
631 memset32(VRAM_CACHED_STUFF, 0xe0e0e0e0, 512*8/4); // borders
632 memset32((int *)VRAM_CACHED_STUFF + 512*232/4, 0xe0e0e0e0, 512*8/4);
633 memset32((int *)psp_screen + 512*264*2/4, 0, 512*8*2/4);
635 PicoDrawSetColorFormat(-1);
636 PicoScan = EmuScanSlow;
643 currentConfig.EmuOpt = eo_old;
647 static void RunEvents(unsigned int which)
649 if (which & 0x1800) // save or load (but not both)
653 if ( emu_checkSaveFile(state_slot) &&
654 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
655 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save
658 blit2("", (which & 0x1000) ? "LOAD STATE? (X=yes, O=no)" : "OVERWRITE SAVE? (X=yes, O=no)");
659 while( !((keys = psp_pad_read(1)) & (BTN_X|BTN_CIRCLE)) )
661 if (keys & BTN_CIRCLE) do_it = 0;
662 while( ((keys = psp_pad_read(1)) & (BTN_X|BTN_CIRCLE)) ) // wait for release
669 osd_text(4, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME", 1);
670 PicoStateProgressCB = emu_msg_cb;
671 emu_SaveLoadGame((which & 0x1000) >> 12, 0);
672 PicoStateProgressCB = NULL;
678 if (which & 0x0400) // switch renderer
680 if (PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
681 else { PicoOpt|= 0x10; currentConfig.EmuOpt &= ~0x80; }
686 strcpy(noticeMsg, " 8bit fast renderer");
687 } else if (currentConfig.EmuOpt&0x80) {
688 strcpy(noticeMsg, "16bit accurate renderer");
690 strcpy(noticeMsg, " 8bit accurate renderer");
693 noticeMsgTime = sceKernelGetSystemTimeLow();
699 if(state_slot < 0) state_slot = 9;
702 if(state_slot > 9) state_slot = 0;
704 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
705 noticeMsgTime = sceKernelGetSystemTimeLow();
709 static void updateKeys(void)
711 unsigned int keys, allActions[2] = { 0, 0 }, events;
712 static unsigned int prevEvents = 0;
715 keys = psp_pad_read(0);
716 if (keys & PSP_CTRL_HOME)
717 sceDisplayWaitVblankStart();
719 if (keys & BTN_SELECT)
720 engineState = PGS_Menu;
722 keys &= CONFIGURABLE_KEYS;
724 for (i = 0; i < 32; i++)
728 int pl, acts = currentConfig.KeyBinds[i];
730 pl = (acts >> 16) & 1;
731 if (combo_keys & (1 << i))
733 int u = i+1, acts_c = acts & combo_acts;
734 // let's try to find the other one
737 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {
738 allActions[pl] |= acts_c;
739 keys &= ~((1 << i) | (1 << u));
742 // add non-combo actions if combo ones were not found
743 if (!acts_c || u == 32)
744 allActions[pl] |= acts & ~combo_acts;
746 allActions[pl] |= acts;
751 PicoPad[0] = (unsigned short) allActions[0];
752 PicoPad[1] = (unsigned short) allActions[1];
754 events = (allActions[0] | allActions[1]) >> 16;
756 // volume is treated in special way and triggered every frame
757 if ((events & 0x6000) && PsndOut != NULL)
759 int vol = currentConfig.volume;
760 if (events & 0x2000) {
761 if (vol < 100) vol++;
765 // FrameworkAudio_SetVolume(vol, vol); // TODO
766 sprintf(noticeMsg, "VOL: %02i ", vol);
767 noticeMsgTime = sceKernelGetSystemTimeLow();
768 currentConfig.volume = vol;
771 events &= ~prevEvents;
772 if (events) RunEvents(events);
773 if (movie_data) emu_updateMovie();
775 prevEvents = (allActions[0] | allActions[1]) >> 16;
778 static void find_combos(void)
782 // find out which keys and actions are combos
783 combo_keys = combo_acts = 0;
784 for (act = 0; act < 32; act++)
787 if (act == 16 || act == 17) continue; // player2 flag
788 for (u = 0; u < 32; u++)
790 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;
794 // loop again and mark those keys and actions as combo
795 for (u = 0; u < 32; u++)
797 if (currentConfig.KeyBinds[u] & (1 << act)) {
798 combo_keys |= 1 << u;
799 combo_acts |= 1 << act;
807 static void simpleWait(unsigned int until)
812 tval = sceKernelGetSystemTimeLow();
813 diff = (int)until - (int)tval;
814 if (diff >= 512 && diff < 100*1024)
815 sceKernelDelayThread(diff);
820 char fpsbuff[24]; // fps count c string
821 unsigned int tval, tval_prev = 0, tval_thissec = 0; // timing
822 int frames_done = 0, frames_shown = 0, oldmodes = 0;
823 int target_fps, target_frametime, lim_time, tval_diff, i;
826 lprintf("entered emu_Loop()\n");
830 if (currentConfig.CPUclock != psp_get_cpu_clock()) {
831 lprintf("setting cpu clock to %iMHz... ", currentConfig.CPUclock);
832 i = psp_set_cpu_clock(currentConfig.CPUclock);
833 lprintf(i ? "failed\n" : "done\n");
834 currentConfig.CPUclock = psp_get_cpu_clock();
837 // make sure we are in correct mode
841 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
844 // pal/ntsc might have changed, reset related stuff
845 target_fps = Pico.m.pal ? 50 : 60;
846 target_frametime = Pico.m.pal ? (1000000<<8)/50 : (1000000<<8)/60+1;
850 if (PicoMCD & 1) PicoCDBufferInit();
852 // prepare sound stuff
854 if (currentConfig.EmuOpt & 4)
860 while (engineState == PGS_Running)
864 tval = sceKernelGetSystemTimeLow();
865 if (reset_timing || tval < tval_prev) {
866 //stdbg("timing reset");
869 frames_shown = frames_done = 0;
872 // show notice message?
874 static int noticeMsgSum;
875 if (tval - noticeMsgTime > 2000000) { // > 2.0 sec
880 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
881 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
886 // check for mode changes
887 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
888 if (modes != oldmodes) {
891 set_scaling_params();
895 if (tval - tval_thissec >= 1000000)
898 if (currentConfig.Frameskip < 0 && frames_done < target_fps) {
899 SkipFrame(); frames_done++;
902 if (currentConfig.EmuOpt & 2)
903 sprintf(fpsbuff, "%02i/%02i ", frames_shown, frames_done);
905 tval_thissec += 1000000;
907 if (currentConfig.Frameskip < 0) {
908 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
909 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
910 if (frames_shown > frames_done) frames_shown = frames_done;
912 frames_done = frames_shown = 0;
916 sprintf(fpsbuff, "%i", Pico.m.frame_count);
920 lim_time = (frames_done+1) * target_frametime;
921 if (currentConfig.Frameskip >= 0) // frameskip enabled
923 for (i = 0; i < currentConfig.Frameskip; i++) {
925 SkipFrame(); frames_done++;
926 if (PsndOut) { // do framelimitting if sound is enabled
928 tval = sceKernelGetSystemTimeLow();
929 tval_diff = (int)(tval - tval_thissec) << 8;
930 if (tval_diff < lim_time) // we are too fast
931 simpleWait(tval + ((lim_time - tval_diff)>>8));
933 lim_time += target_frametime;
936 else // auto frameskip
939 tval = sceKernelGetSystemTimeLow();
940 tval_diff = (int)(tval - tval_thissec) << 8;
941 if (tval_diff > lim_time)
943 // no time left for this frame - skip
944 if (tval_diff - lim_time >= (300000<<8)) {
945 /* something caused a slowdown for us (disk access? cache flush?)
946 * try to recover by resetting timing... */
951 SkipFrame(); frames_done++;
963 blit2(fpsbuff, notice);
966 tval = sceKernelGetSystemTimeLow();
967 tval_diff = (int)(tval - tval_thissec) << 8;
969 if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300000<<8)) // slowdown detection
971 else if (PsndOut != NULL || currentConfig.Frameskip < 0)
973 // sleep if we are still too fast
974 if (tval_diff < lim_time)
977 simpleWait(tval + ((lim_time - tval_diff) >> 8));
981 frames_done++; frames_shown++;
985 if (PicoMCD & 1) PicoCDBufferFree();
987 if (PsndOut != NULL) {
993 if ((currentConfig.EmuOpt & 1) && SRam.changed) {
994 emu_msg_cb("Writing SRAM/BRAM..");
995 emu_SaveLoadGame(0, 1);
999 // clear fps counters and stuff
1000 memset32((int *)psp_video_get_active_fb() + 512*264*2/4, 0, 512*8*2/4);
1004 void emu_ResetGame(void)