| 1 | #include <windows.h> |
| 2 | #include <string.h> |
| 3 | |
| 4 | #include <sys/stat.h> // mkdir |
| 5 | #include <sys/types.h> |
| 6 | |
| 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 "emu.h" |
| 14 | #include "menu.h" |
| 15 | #include "giz.h" |
| 16 | #include "asm_utils.h" |
| 17 | |
| 18 | #include <Pico/PicoInt.h> |
| 19 | |
| 20 | #ifdef BENCHMARK |
| 21 | #define OSD_FPS_X 220 |
| 22 | #else |
| 23 | #define OSD_FPS_X 260 |
| 24 | #endif |
| 25 | |
| 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]; |
| 29 | int engineState; |
| 30 | |
| 31 | unsigned char *PicoDraw2FB = gfx_buffer; // temporary buffer for alt renderer ( (8+320)*(8+240+8) ) |
| 32 | int reset_timing = 0; |
| 33 | |
| 34 | static DWORD noticeMsgTime = 0; |
| 35 | static int osd_fps_x; |
| 36 | |
| 37 | |
| 38 | static void blit(const char *fps, const char *notice); |
| 39 | static void clearArea(int full); |
| 40 | |
| 41 | void emu_noticeMsgUpdated(void) |
| 42 | { |
| 43 | noticeMsgTime = GetTickCount(); |
| 44 | } |
| 45 | |
| 46 | void emu_getMainDir(char *dst, int len) |
| 47 | { |
| 48 | if (len > 0) *dst = 0; |
| 49 | } |
| 50 | |
| 51 | static void emu_msg_cb(const char *msg) |
| 52 | { |
| 53 | if (giz_screen == NULL) |
| 54 | giz_screen = Framework2D_LockBuffer(); |
| 55 | |
| 56 | memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); |
| 57 | emu_textOut16(4, 232, msg); |
| 58 | noticeMsgTime = GetTickCount() - 2000; |
| 59 | |
| 60 | /* assumption: emu_msg_cb gets called only when something slow is about to happen */ |
| 61 | reset_timing = 1; |
| 62 | } |
| 63 | |
| 64 | static void emu_state_cb(const char *str) |
| 65 | { |
| 66 | clearArea(0); |
| 67 | blit("", str); |
| 68 | } |
| 69 | |
| 70 | static void emu_msg_tray_open(void) |
| 71 | { |
| 72 | strcpy(noticeMsg, "CD tray opened"); |
| 73 | noticeMsgTime = GetTickCount(); |
| 74 | } |
| 75 | |
| 76 | |
| 77 | void emu_Init(void) |
| 78 | { |
| 79 | // make dirs for saves, cfgs, etc. |
| 80 | mkdir("mds", 0777); |
| 81 | mkdir("srm", 0777); |
| 82 | mkdir("brm", 0777); |
| 83 | mkdir("cfg", 0777); |
| 84 | |
| 85 | PicoInit(); |
| 86 | PicoMessage = emu_msg_cb; |
| 87 | PicoMCDopenTray = emu_msg_tray_open; |
| 88 | PicoMCDcloseTray = menu_loop_tray; |
| 89 | } |
| 90 | |
| 91 | void emu_Deinit(void) |
| 92 | { |
| 93 | // save SRAM |
| 94 | if((currentConfig.EmuOpt & 1) && SRam.changed) { |
| 95 | emu_SaveLoadGame(0, 1); |
| 96 | SRam.changed = 0; |
| 97 | } |
| 98 | |
| 99 | if (!(currentConfig.EmuOpt & 0x20)) { |
| 100 | FILE *f = fopen(PicoConfigFile, "r+b"); |
| 101 | if (!f) emu_WriteConfig(0); |
| 102 | else { |
| 103 | // if we already have config, reload it, except last ROM |
| 104 | fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET); |
| 105 | fread(¤tConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f); |
| 106 | fseek(f, 0, SEEK_SET); |
| 107 | fwrite(¤tConfig, 1, sizeof(currentConfig), f); |
| 108 | fflush(f); |
| 109 | fclose(f); |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | PicoExit(); |
| 114 | } |
| 115 | |
| 116 | void emu_setDefaultConfig(void) |
| 117 | { |
| 118 | memset(¤tConfig, 0, sizeof(currentConfig)); |
| 119 | currentConfig.lastRomFile[0] = 0; |
| 120 | currentConfig.EmuOpt = 0x1f | 0x600; // | confirm_save, cd_leds |
| 121 | currentConfig.PicoOpt = 0x0f | 0xc00; // | cd_pcm, cd_cdda |
| 122 | currentConfig.PsndRate = 22050; |
| 123 | currentConfig.PicoRegion = 0; // auto |
| 124 | currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP |
| 125 | currentConfig.Frameskip = 0;//-1; // auto |
| 126 | currentConfig.volume = 50; |
| 127 | currentConfig.KeyBinds[ 2] = 1<<0; // SACB RLDU |
| 128 | currentConfig.KeyBinds[ 3] = 1<<1; |
| 129 | currentConfig.KeyBinds[ 0] = 1<<2; |
| 130 | currentConfig.KeyBinds[ 1] = 1<<3; |
| 131 | currentConfig.KeyBinds[ 5] = 1<<4; |
| 132 | currentConfig.KeyBinds[ 6] = 1<<5; |
| 133 | currentConfig.KeyBinds[ 7] = 1<<6; |
| 134 | currentConfig.KeyBinds[ 4] = 1<<7; |
| 135 | currentConfig.KeyBinds[ 8] = 1<<27; // save state |
| 136 | currentConfig.KeyBinds[ 9] = 1<<28; // load state |
| 137 | currentConfig.KeyBinds[12] = 1<<29; // vol up |
| 138 | currentConfig.KeyBinds[11] = 1<<30; // vol down |
| 139 | currentConfig.PicoCDBuffers = 64; |
| 140 | currentConfig.scaling = 0; |
| 141 | } |
| 142 | |
| 143 | |
| 144 | static int EmuScan16(unsigned int num, void *sdata) |
| 145 | { |
| 146 | if (!(Pico.video.reg[1]&8)) num += 8; |
| 147 | DrawLineDest = (unsigned short *) giz_screen + 321*(num+1); |
| 148 | |
| 149 | return 0; |
| 150 | } |
| 151 | |
| 152 | static int EmuScan8(unsigned int num, void *sdata) |
| 153 | { |
| 154 | // draw like the fast renderer |
| 155 | if (!(Pico.video.reg[1]&8)) num += 8; |
| 156 | HighCol = gfx_buffer + 328*(num+1); |
| 157 | |
| 158 | return 0; |
| 159 | } |
| 160 | |
| 161 | static void osd_text(int x, int y, const char *text) |
| 162 | { |
| 163 | int len = strlen(text) * 8; |
| 164 | int *p, i, h; |
| 165 | len = (len+1) >> 1; |
| 166 | for (h = 0; h < 8; h++) { |
| 167 | p = (int *) ((unsigned short *) giz_screen+x+321*(y+h)); |
| 168 | p = (int *) ((int)p & ~3); // align |
| 169 | for (i = len; i; i--, p++) *p = 0; |
| 170 | } |
| 171 | emu_textOut16(x, y, text); |
| 172 | } |
| 173 | |
| 174 | |
| 175 | short localPal[0x100]; |
| 176 | static void (*vidCpy8to16)(void *dest, void *src, short *pal, int lines) = NULL; |
| 177 | |
| 178 | static void blit(const char *fps, const char *notice) |
| 179 | { |
| 180 | int emu_opt = currentConfig.EmuOpt; |
| 181 | |
| 182 | if (PicoOpt&0x10) { |
| 183 | // 8bit fast renderer |
| 184 | if (Pico.m.dirtyPal) { |
| 185 | Pico.m.dirtyPal = 0; |
| 186 | vidConvCpyRGB565(localPal, Pico.cram, 0x40); |
| 187 | } |
| 188 | vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, 224); |
| 189 | } else if (!(emu_opt&0x80)) { |
| 190 | // 8bit accurate renderer |
| 191 | if (Pico.m.dirtyPal) { |
| 192 | Pico.m.dirtyPal = 0; |
| 193 | vidConvCpyRGB565(localPal, Pico.cram, 0x40); |
| 194 | if (Pico.video.reg[0xC]&8) { // shadow/hilight mode |
| 195 | //vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40); |
| 196 | //vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); // TODO |
| 197 | blockcpy(localPal+0xc0, localPal+0x40, 0x40*2); |
| 198 | localPal[0xc0] = 0x0600; |
| 199 | localPal[0xd0] = 0xc000; |
| 200 | localPal[0xe0] = 0x0000; // reserved pixels for OSD |
| 201 | localPal[0xf0] = 0xffff; |
| 202 | } |
| 203 | /* no support |
| 204 | else if (rendstatus & 0x20) { // mid-frame palette changes |
| 205 | vidConvCpyRGB565(localPal+0x40, HighPal, 0x40); |
| 206 | vidConvCpyRGB565(localPal+0x80, HighPal+0x40, 0x40); |
| 207 | } */ |
| 208 | } |
| 209 | // TODO... |
| 210 | //lprintf("vidCpy8to16 %p %p\n", (unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8); |
| 211 | vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, 224); |
| 212 | //lprintf("after vidCpy8to16\n"); |
| 213 | } |
| 214 | |
| 215 | if (notice || (emu_opt & 2)) { |
| 216 | int h = 232; |
| 217 | if (notice) osd_text(4, h, notice); |
| 218 | if (emu_opt & 2) osd_text(osd_fps_x, h, fps); |
| 219 | } |
| 220 | // if ((emu_opt & 0x400) && (PicoMCD & 1)) |
| 221 | // cd_leds(); |
| 222 | |
| 223 | //gp2x_video_wait_vsync(); |
| 224 | |
| 225 | if (!(PicoOpt&0x10)) { |
| 226 | if (Pico.video.reg[1] & 8) { |
| 227 | if (currentConfig.EmuOpt&0x80) |
| 228 | DrawLineDest = (unsigned short *) giz_screen; |
| 229 | else |
| 230 | HighCol = gfx_buffer; |
| 231 | } else { |
| 232 | if (currentConfig.EmuOpt&0x80) |
| 233 | DrawLineDest = (unsigned short *) giz_screen + 320*8; |
| 234 | else |
| 235 | HighCol = gfx_buffer + 328*8; |
| 236 | } |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | // clears whole screen or just the notice area (in all buffers) |
| 241 | static void clearArea(int full) |
| 242 | { |
| 243 | if (giz_screen == NULL) |
| 244 | giz_screen = Framework2D_LockBuffer(); |
| 245 | if (full) memset32(giz_screen, 0, 320*240*2/4); |
| 246 | else memset32((int *)((char *)giz_screen + 320*232*2), 0, 320*8*2/4); |
| 247 | } |
| 248 | |
| 249 | static void vidResetMode(void) |
| 250 | { |
| 251 | void *screen; |
| 252 | if (PicoOpt&0x10) { |
| 253 | } else if (currentConfig.EmuOpt&0x80) { |
| 254 | PicoDrawSetColorFormat(1); |
| 255 | PicoScan = EmuScan16; |
| 256 | } else { |
| 257 | PicoDrawSetColorFormat(0); |
| 258 | PicoScan = EmuScan8; |
| 259 | } |
| 260 | if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) { |
| 261 | // setup pal for 8-bit modes |
| 262 | localPal[0xc0] = 0x0600; |
| 263 | localPal[0xd0] = 0xc000; |
| 264 | localPal[0xe0] = 0x0000; // reserved pixels for OSD |
| 265 | localPal[0xf0] = 0xffff; |
| 266 | } |
| 267 | Pico.m.dirtyPal = 1; |
| 268 | screen = Framework2D_LockBuffer(); |
| 269 | memset32(screen, 0, 320*240*2/4); |
| 270 | Framework2D_UnlockBuffer(); |
| 271 | giz_screen = NULL; |
| 272 | } |
| 273 | |
| 274 | |
| 275 | static void SkipFrame(int do_audio) |
| 276 | { |
| 277 | PicoSkipFrame=do_audio ? 1 : 2; |
| 278 | PicoFrame(); |
| 279 | PicoSkipFrame=0; |
| 280 | } |
| 281 | |
| 282 | void emu_forcedFrame(void) |
| 283 | { |
| 284 | // TODO |
| 285 | } |
| 286 | |
| 287 | static void updateKeys(void) |
| 288 | { |
| 289 | unsigned int keys, allActions[2] = { 0, 0 }, events; |
| 290 | static unsigned int prevEvents = 0; |
| 291 | int i; |
| 292 | |
| 293 | keys = Framework_PollGetButtons(); |
| 294 | if (keys & BTN_HOME) { |
| 295 | engineState = PGS_Menu; |
| 296 | // wait until select is released, so menu would not resume game |
| 297 | while (Framework_PollGetButtons() & BTN_HOME) Sleep(50); |
| 298 | } |
| 299 | |
| 300 | keys &= CONFIGURABLE_KEYS; |
| 301 | |
| 302 | for (i = 0; i < 32; i++) |
| 303 | { |
| 304 | if (keys & (1 << i)) { |
| 305 | int pl, acts = currentConfig.KeyBinds[i]; |
| 306 | if (!acts) continue; |
| 307 | pl = (acts >> 16) & 1; |
| 308 | /* TODO if (combo_keys & (1 << i)) { |
| 309 | int u = i+1, acts_c = acts & combo_acts; |
| 310 | // let's try to find the other one |
| 311 | if (acts_c) |
| 312 | for (; u < 32; u++) |
| 313 | if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) { |
| 314 | allActions[pl] |= acts_c; |
| 315 | keys &= ~((1 << i) | (1 << u)); |
| 316 | break; |
| 317 | } |
| 318 | // add non-combo actions if combo ones were not found |
| 319 | if (!acts_c || u == 32) |
| 320 | allActions[pl] |= acts & ~combo_acts; |
| 321 | } else */ { |
| 322 | allActions[pl] |= acts; |
| 323 | } |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | PicoPad[0] = (unsigned short) allActions[0]; |
| 328 | PicoPad[1] = (unsigned short) allActions[1]; |
| 329 | |
| 330 | events = (allActions[0] | allActions[1]) >> 16; |
| 331 | |
| 332 | // volume is treated in special way and triggered every frame |
| 333 | if (events & 0x6000) { |
| 334 | int vol = currentConfig.volume; |
| 335 | if (events & 0x2000) { |
| 336 | if (vol < 100) vol++; |
| 337 | } else { |
| 338 | if (vol > 0) vol--; |
| 339 | } |
| 340 | //gp2x_sound_volume(vol, vol); |
| 341 | sprintf(noticeMsg, "VOL: %02i", vol); |
| 342 | noticeMsgTime = GetTickCount(); |
| 343 | currentConfig.volume = vol; |
| 344 | } |
| 345 | |
| 346 | events &= ~prevEvents; |
| 347 | //if (events) RunEvents(events); // TODO |
| 348 | if (movie_data) emu_updateMovie(); |
| 349 | |
| 350 | prevEvents = (allActions[0] | allActions[1]) >> 16; |
| 351 | } |
| 352 | |
| 353 | static void simpleWait(DWORD until) |
| 354 | { |
| 355 | } |
| 356 | |
| 357 | void emu_Loop(void) |
| 358 | { |
| 359 | //static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0; |
| 360 | char fpsbuff[24]; // fps count c string |
| 361 | DWORD tval, tval_prev = 0, tval_thissec = 0; // timing |
| 362 | int frames_done = 0, frames_shown = 0, oldmodes = 0; |
| 363 | int target_fps, target_frametime, lim_time, tval_diff, i; |
| 364 | char *notice = NULL; |
| 365 | |
| 366 | lprintf("entered emu_Loop()\n"); |
| 367 | |
| 368 | fpsbuff[0] = 0; |
| 369 | |
| 370 | // make sure we are in correct mode |
| 371 | vidResetMode(); |
| 372 | if (currentConfig.scaling) PicoOpt|=0x4000; |
| 373 | else PicoOpt&=~0x4000; |
| 374 | Pico.m.dirtyPal = 1; |
| 375 | oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc; |
| 376 | //find_combos(); // TODO |
| 377 | |
| 378 | // pal/ntsc might have changed, reset related stuff |
| 379 | target_fps = Pico.m.pal ? 50 : 60; |
| 380 | target_frametime = (1000<<8)/target_fps; |
| 381 | reset_timing = 1; |
| 382 | |
| 383 | // prepare sound stuff |
| 384 | /* if (currentConfig.EmuOpt & 4) { |
| 385 | int snd_excess_add; |
| 386 | if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) { |
| 387 | sound_rerate(Pico.m.frame_count ? 1 : 0); |
| 388 | } |
| 389 | snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps; |
| 390 | lprintf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n", |
| 391 | PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal); |
| 392 | gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3); |
| 393 | gp2x_sound_volume(currentConfig.volume, currentConfig.volume); |
| 394 | PicoWriteSound = updateSound; |
| 395 | memset(sndBuffer, 0, sizeof(sndBuffer)); |
| 396 | PsndOut = sndBuffer; |
| 397 | PsndRate_old = PsndRate; |
| 398 | PsndLen_real = PsndLen; |
| 399 | PicoOpt_old = PicoOpt; |
| 400 | pal_old = Pico.m.pal; |
| 401 | } else*/ { |
| 402 | PsndOut = 0; |
| 403 | } |
| 404 | |
| 405 | // prepare CD buffer |
| 406 | if (PicoMCD & 1) PicoCDBufferInit(); |
| 407 | |
| 408 | // loop? |
| 409 | while (engineState == PGS_Running) |
| 410 | { |
| 411 | int modes; |
| 412 | |
| 413 | tval = GetTickCount(); |
| 414 | if (reset_timing || tval < tval_prev) { |
| 415 | reset_timing = 0; |
| 416 | tval_thissec = tval; |
| 417 | frames_shown = frames_done = 0; |
| 418 | } |
| 419 | |
| 420 | // show notice message? |
| 421 | if (noticeMsgTime) { |
| 422 | static int noticeMsgSum; |
| 423 | if (tval - noticeMsgTime > 2000) { // > 2.0 sec |
| 424 | noticeMsgTime = 0; |
| 425 | clearArea(0); |
| 426 | notice = 0; |
| 427 | } else { |
| 428 | int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2]; |
| 429 | if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; } |
| 430 | notice = noticeMsg; |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | // check for mode changes |
| 435 | modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8); |
| 436 | if (modes != oldmodes) { |
| 437 | osd_fps_x = OSD_FPS_X; |
| 438 | //if (modes & 4) |
| 439 | vidCpy8to16 = vidCpy8to16_40; |
| 440 | //else |
| 441 | // vidCpy8to16 = vidCpy8to16_32col; |
| 442 | oldmodes = modes; |
| 443 | clearArea(1); |
| 444 | } |
| 445 | |
| 446 | // second passed? |
| 447 | if (tval - tval_thissec >= 1000) |
| 448 | { |
| 449 | #ifdef BENCHMARK |
| 450 | static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4]; |
| 451 | if(++bench == 10) { |
| 452 | bench = 0; |
| 453 | bench_fps_s = bench_fps; |
| 454 | bf[bfp++ & 3] = bench_fps; |
| 455 | bench_fps = 0; |
| 456 | } |
| 457 | bench_fps += frames_shown; |
| 458 | sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2); |
| 459 | #else |
| 460 | if(currentConfig.EmuOpt & 2) |
| 461 | sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done); |
| 462 | #endif |
| 463 | tval_thissec = tval; |
| 464 | |
| 465 | if (PsndOut == 0 && currentConfig.Frameskip >= 0) { |
| 466 | frames_done = frames_shown = 0; |
| 467 | } else { |
| 468 | // it is quite common for this implementation to leave 1 fame unfinished |
| 469 | // when second changes, but we don't want buffer to starve. |
| 470 | if (PsndOut && frames_done < target_fps && frames_done > target_fps-5) { |
| 471 | updateKeys(); |
| 472 | SkipFrame(1); frames_done++; |
| 473 | } |
| 474 | |
| 475 | frames_done -= target_fps; if (frames_done < 0) frames_done = 0; |
| 476 | frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0; |
| 477 | if (frames_shown > frames_done) frames_shown = frames_done; |
| 478 | } |
| 479 | } |
| 480 | #ifdef PFRAMES |
| 481 | sprintf(fpsbuff, "%i", Pico.m.frame_count); |
| 482 | #endif |
| 483 | |
| 484 | tval_prev = tval; |
| 485 | lim_time = (frames_done+1) * target_frametime; |
| 486 | if (currentConfig.Frameskip >= 0) // frameskip enabled |
| 487 | { |
| 488 | for (i = 0; i < currentConfig.Frameskip; i++) { |
| 489 | updateKeys(); |
| 490 | SkipFrame(1); frames_done++; |
| 491 | if (PsndOut) { // do framelimitting if sound is enabled |
| 492 | int tval_diff; |
| 493 | tval = GetTickCount(); |
| 494 | tval_diff = (int)(tval - tval_thissec) << 8; |
| 495 | if (tval_diff < lim_time) // we are too fast |
| 496 | simpleWait(tval + ((lim_time - tval_diff)>>8)); |
| 497 | } |
| 498 | lim_time += target_frametime; |
| 499 | } |
| 500 | } |
| 501 | else // auto frameskip |
| 502 | { |
| 503 | int tval_diff; |
| 504 | tval = GetTickCount(); |
| 505 | tval_diff = (int)(tval - tval_thissec) << 8; |
| 506 | if (tval_diff > lim_time) |
| 507 | { |
| 508 | // no time left for this frame - skip |
| 509 | if (tval_diff - lim_time >= (300<<8)) { |
| 510 | /* something caused a slowdown for us (disk access? cache flush?) |
| 511 | * try to recover by resetting timing... */ |
| 512 | reset_timing = 1; |
| 513 | continue; |
| 514 | } |
| 515 | updateKeys(); |
| 516 | SkipFrame(tval_diff < lim_time+target_frametime*2); frames_done++; |
| 517 | continue; |
| 518 | } |
| 519 | } |
| 520 | |
| 521 | updateKeys(); |
| 522 | |
| 523 | if (giz_screen == NULL) |
| 524 | giz_screen = Framework2D_LockBuffer(); |
| 525 | |
| 526 | PicoFrame(); |
| 527 | blit(fpsbuff, notice); |
| 528 | |
| 529 | if (giz_screen != NULL) { |
| 530 | Framework2D_UnlockBuffer(); |
| 531 | giz_screen = NULL; |
| 532 | } |
| 533 | //lprintf("after unlock\n"); |
| 534 | |
| 535 | // check time |
| 536 | tval = GetTickCount(); |
| 537 | tval_diff = (int)(tval - tval_thissec) << 8; |
| 538 | |
| 539 | if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300<<8)) // slowdown detection |
| 540 | reset_timing = 1; |
| 541 | else if (PsndOut != NULL || currentConfig.Frameskip < 0) |
| 542 | { |
| 543 | // sleep if we are still too fast |
| 544 | if (tval_diff < lim_time) |
| 545 | { |
| 546 | // we are too fast |
| 547 | simpleWait(tval + ((lim_time - tval_diff) >> 8)); |
| 548 | } |
| 549 | } |
| 550 | |
| 551 | frames_done++; frames_shown++; |
| 552 | } |
| 553 | |
| 554 | |
| 555 | if (PicoMCD & 1) PicoCDBufferFree(); |
| 556 | |
| 557 | // save SRAM |
| 558 | if ((currentConfig.EmuOpt & 1) && SRam.changed) { |
| 559 | emu_state_cb("Writing SRAM/BRAM.."); |
| 560 | emu_SaveLoadGame(0, 1); |
| 561 | SRam.changed = 0; |
| 562 | } |
| 563 | } |
| 564 | |
| 565 | |
| 566 | void emu_ResetGame(void) |
| 567 | { |
| 568 | PicoReset(0); |
| 569 | reset_timing = 1; |
| 570 | } |
| 571 | |