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1 | #include <windows.h> |
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2 | #include <string.h> |
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3 | |
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4 | #include <sys/stat.h> // mkdir |
5 | #include <sys/types.h> |
6 | |
7 | #include "kgsdk/Framework.h" |
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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" |
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13 | #include "emu.h" |
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14 | #include "menu.h" |
15 | #include "giz.h" |
16 | #include "asm_utils.h" |
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17 | |
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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]; |
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28 | char romFileName[MAX_PATH]; |
29 | int engineState; |
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30 | |
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31 | unsigned char *PicoDraw2FB = gfx_buffer; // temporary buffer for alt renderer ( (8+320)*(8+240+8) ) |
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32 | int reset_timing = 0; |
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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. |
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80 | mkdir("mds", 0777); |
81 | mkdir("srm", 0777); |
82 | mkdir("brm", 0777); |
83 | mkdir("cfg", 0777); |
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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 |
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125 | currentConfig.Frameskip = 0;//-1; // auto |
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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; |
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134 | currentConfig.KeyBinds[ 4] = 1<<7; |
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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; |
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156 | HighCol = gfx_buffer + 328*(num+1); |
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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 | } |
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188 | vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, 224); |
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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); |
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194 | if (Pico.video.reg[0xC]&8) { // shadow/hilight mode |
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195 | //vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40); |
196 | //vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); // TODO |
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197 | blockcpy(localPal+0xc0, localPal+0x40, 0x40*2); |
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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... |
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210 | //lprintf("vidCpy8to16 %p %p\n", (unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8); |
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211 | vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, 224); |
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212 | //lprintf("after vidCpy8to16\n"); |
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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 | { |
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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; |
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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 | } |
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533 | //lprintf("after unlock\n"); |
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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 | } |
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571 | |