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Cyclone poll detection problem fixed
[libpicofe.git] / gp2x / emu.c
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6ab2f79c 1// (c) Copyright 2006-2007 notaz, All rights reserved.\r
720ee7f6 2// Free for non-commercial use.\r
3\r
4// For commercial use, separate licencing terms must be obtained.\r
5\r
6#include <stdio.h>\r
7#include <stdlib.h>\r
8#include <sys/time.h>\r
4ffd2858 9#include <sys/stat.h>\r
10#include <sys/types.h>\r
720ee7f6 11#include <linux/limits.h>\r
12#include <ctype.h>\r
13#include <unistd.h>\r
14\r
15#include <stdarg.h>\r
16\r
17#include "emu.h"\r
18#include "gp2x.h"\r
19#include "usbjoy.h"\r
20#include "menu.h"\r
c7a4ff64 21#include "../common/arm_utils.h"\r
22#include "../common/fonts.h"\r
f013066e 23#include "../common/emu.h"\r
720ee7f6 24#include "cpuctrl.h"\r
25\r
70d2ecc5 26#include <Pico/PicoInt.h>\r
27#include <Pico/Patch.h>\r
28#include <zlib/zlib.h>\r
720ee7f6 29\r
4327ec37 30//#define PFRAMES\r
720ee7f6 31\r
32#ifdef BENCHMARK\r
33#define OSD_FPS_X 220\r
34#else\r
35#define OSD_FPS_X 260\r
36#endif\r
37\r
720ee7f6 38\r
39int engineState;\r
40int select_exits = 0;\r
720ee7f6 41\r
42char romFileName[PATH_MAX];\r
720ee7f6 43\r
44extern int crashed_940;\r
45\r
6245d5a0 46static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
720ee7f6 47static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
8f1b51ef 48static int osd_fps_x;\r
720ee7f6 49static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos\r
50static int gp2x_old_gamma = 100;\r
f013066e 51char noticeMsg[64]; // notice msg to draw\r
c7a4ff64 52unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
8f1b51ef 53int reset_timing = 0;\r
720ee7f6 54\r
f013066e 55static void emu_msg_cb(const char *msg);\r
56static void emu_msg_tray_open(void);\r
720ee7f6 57\r
720ee7f6 58\r
f013066e 59void emu_noticeMsgUpdated(void)\r
720ee7f6 60{\r
f013066e 61 gettimeofday(&noticeMsgTime, 0);\r
720ee7f6 62}\r
63\r
f013066e 64void emu_getMainDir(char *dst, int len)\r
25fced50 65{\r
f013066e 66 extern char **g_argv;\r
67 int j;\r
25fced50 68\r
f013066e 69 strncpy(dst, g_argv[0], len);\r
70 len -= 32; // reserve\r
71 if (len < 0) len = 0;\r
72 dst[len] = 0;\r
73 for (j = strlen(dst); j > 0; j--)\r
74 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
25fced50 75}\r
76\r
720ee7f6 77void emu_Init(void)\r
78{\r
79 // make temp buffer for alt renderer\r
c7a4ff64 80 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
81 if (!PicoDraw2FB)\r
720ee7f6 82 {\r
c7a4ff64 83 printf("PicoDraw2FB == 0\n");\r
720ee7f6 84 }\r
85\r
4ffd2858 86 // make dirs for saves, cfgs, etc.\r
87 mkdir("mds", 0777);\r
88 mkdir("srm", 0777);\r
89 mkdir("brm", 0777);\r
90 mkdir("cfg", 0777);\r
91\r
720ee7f6 92 PicoInit();\r
dfa4c846 93 PicoMessage = emu_msg_cb;\r
5e2e14f2 94 PicoMCDopenTray = emu_msg_tray_open;\r
95 PicoMCDcloseTray = menu_loop_tray;\r
720ee7f6 96}\r
97\r
98\r
720ee7f6 99static void find_combos(void)\r
100{\r
101 int act, u;\r
102\r
103 // find out which keys and actions are combos\r
104 combo_keys = combo_acts = 0;\r
105 for (act = 0; act < 32; act++)\r
106 {\r
c93fb19e 107 int keyc = 0, keyc2 = 0;\r
65345ecc 108 if (act == 16 || act == 17) continue; // player2 flag\r
c93fb19e 109 if (act > 17)\r
720ee7f6 110 {\r
c93fb19e 111 for (u = 0; u < 32; u++)\r
112 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
113 }\r
114 else\r
115 {\r
116 for (u = 0; u < 32; u++)\r
117 if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1\r
118 (currentConfig.KeyBinds[u] & (1 << act))) keyc++;\r
119 for (u = 0; u < 32; u++)\r
120 if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2\r
121 (currentConfig.KeyBinds[u] & (1 << act))) keyc2++;\r
122 if (keyc2 > keyc) keyc = keyc2;\r
720ee7f6 123 }\r
124 if (keyc > 1)\r
125 {\r
126 // loop again and mark those keys and actions as combo\r
127 for (u = 0; u < 32; u++)\r
128 {\r
129 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
130 combo_keys |= 1 << u;\r
131 combo_acts |= 1 << act;\r
132 }\r
133 }\r
134 }\r
135 }\r
c93fb19e 136\r
720ee7f6 137 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
138}\r
139\r
140\r
f013066e 141static void scaling_update(void)\r
79cad122 142{\r
143 PicoOpt &= ~0x4100;\r
144 switch (currentConfig.scaling) {\r
145 default: break; // off\r
146 case 1: // hw hor\r
147 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
148 case 3: PicoOpt |= 0x4000; break; // sw hor\r
149 }\r
150}\r
151\r
152\r
720ee7f6 153void emu_Deinit(void)\r
154{\r
155 // save SRAM\r
156 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
157 emu_SaveLoadGame(0, 1);\r
158 SRam.changed = 0;\r
159 }\r
160\r
79cad122 161 if (!(currentConfig.EmuOpt & 0x20)) {\r
162 FILE *f = fopen(PicoConfigFile, "r+b");\r
163 if (!f) emu_WriteConfig(0);\r
164 else {\r
165 // if we already have config, reload it, except last ROM\r
166 fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);\r
167 fread(&currentConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);\r
168 fseek(f, 0, SEEK_SET);\r
169 fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
170 fflush(f);\r
171 fclose(f);\r
172#ifndef NO_SYNC\r
173 sync();\r
174#endif\r
175 }\r
176 }\r
177\r
c7a4ff64 178 free(PicoDraw2FB);\r
720ee7f6 179\r
180 PicoExit();\r
720ee7f6 181\r
182 // restore gamma\r
183 if (gp2x_old_gamma != 100)\r
55a951dd 184 set_gamma(100, 0);\r
720ee7f6 185}\r
186\r
f013066e 187void emu_setDefaultConfig(void)\r
188{\r
189 memset(&currentConfig, 0, sizeof(currentConfig));\r
190 currentConfig.lastRomFile[0] = 0;\r
191 currentConfig.EmuOpt = 0x1f | 0x600; // | confirm_save, cd_leds\r
192 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940, cd_pcm, cd_cdda\r
193 currentConfig.PsndRate = 22050; // 44100;\r
194 currentConfig.PicoRegion = 0; // auto\r
195 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
196 currentConfig.Frameskip = -1; // auto\r
197 currentConfig.CPUclock = 200;\r
198 currentConfig.volume = 50;\r
199 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
200 currentConfig.KeyBinds[ 4] = 1<<1;\r
201 currentConfig.KeyBinds[ 2] = 1<<2;\r
202 currentConfig.KeyBinds[ 6] = 1<<3;\r
203 currentConfig.KeyBinds[14] = 1<<4;\r
204 currentConfig.KeyBinds[13] = 1<<5;\r
205 currentConfig.KeyBinds[12] = 1<<6;\r
206 currentConfig.KeyBinds[ 8] = 1<<7;\r
207 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
208 currentConfig.KeyBinds[10] = 1<<27; // save state\r
209 currentConfig.KeyBinds[11] = 1<<28; // load state\r
210 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
211 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
212 currentConfig.gamma = 100;\r
213 currentConfig.PicoCDBuffers = 64;\r
214 currentConfig.scaling = 0;\r
13059a60 215}\r
216\r
0805b5b4 217void osd_text(int x, int y, const char *text)\r
720ee7f6 218{\r
219 int len = strlen(text)*8;\r
220\r
221 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
daf91588 222 int *p, i, h;\r
720ee7f6 223 x &= ~3; // align x\r
224 len = (len+3) >> 2;\r
225 for (h = 0; h < 8; h++) {\r
226 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
daf91588 227 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
720ee7f6 228 }\r
f013066e 229 emu_textOut8(x, y, text);\r
720ee7f6 230 } else {\r
231 int *p, i, h;\r
232 x &= ~1; // align x\r
233 len = (len+1) >> 1;\r
234 for (h = 0; h < 8; h++) {\r
235 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
236 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
237 }\r
f013066e 238 emu_textOut16(x, y, text);\r
720ee7f6 239 }\r
240}\r
241\r
daf91588 242static void cd_leds(void)\r
243{\r
8dfb9fd5 244// static\r
245 int old_reg;\r
8ede36b9 246// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
daf91588 247 old_reg = Pico_mcd->s68k_regs[0];\r
248\r
249 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
250 // 8-bit modes\r
251 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
252 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
49fe50f0 253 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
254 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
255 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
256 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
257 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
258 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
daf91588 259 } else {\r
260 // 16-bit modes\r
49fe50f0 261 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
daf91588 262 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
263 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 264 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
265 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
8ede36b9 266 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
daf91588 267 }\r
268}\r
269\r
720ee7f6 270static int EmuScan16(unsigned int num, void *sdata)\r
271{\r
272 if (!(Pico.video.reg[1]&8)) num += 8;\r
273 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
274\r
275 return 0;\r
276}\r
277\r
278static int EmuScan8(unsigned int num, void *sdata)\r
279{\r
280 if (!(Pico.video.reg[1]&8)) num += 8;\r
281 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
282\r
283 return 0;\r
284}\r
285\r
e5d315a5 286int localPal[0x100];\r
720ee7f6 287static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
288\r
0805b5b4 289static void blit(const char *fps, const char *notice)\r
720ee7f6 290{\r
daf91588 291 int emu_opt = currentConfig.EmuOpt;\r
292\r
720ee7f6 293 if (PicoOpt&0x10) {\r
294 // 8bit fast renderer\r
295 if (Pico.m.dirtyPal) {\r
296 Pico.m.dirtyPal = 0;\r
297 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
298 // feed new palette to our device\r
299 gp2x_video_setpalette(localPal, 0x40);\r
300 }\r
c7a4ff64 301 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
daf91588 302 } else if (!(emu_opt&0x80)) {\r
720ee7f6 303 // 8bit accurate renderer\r
304 if (Pico.m.dirtyPal) {\r
305 Pico.m.dirtyPal = 0;\r
306 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
307 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
308 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
309 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
310 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
daf91588 311 localPal[0xc0] = 0x0000c000;\r
312 localPal[0xd0] = 0x00c00000;\r
720ee7f6 313 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
314 localPal[0xf0] = 0x00ffffff;\r
315 gp2x_video_setpalette(localPal, 0x100);\r
316 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
317 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
318 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
319 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
320 gp2x_video_setpalette(localPal, 0xc0);\r
321 } else {\r
322 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
323 gp2x_video_setpalette(localPal, 0x40);\r
324 }\r
325 }\r
326 }\r
327\r
79cad122 328 if (notice || (emu_opt & 2)) {\r
329 int h = 232;\r
330 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
331 if (notice) osd_text(4, h, notice);\r
332 if (emu_opt & 2)\r
333 osd_text(osd_fps_x, h, fps);\r
334 }\r
daf91588 335 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
336 cd_leds();\r
720ee7f6 337\r
338 //gp2x_video_wait_vsync();\r
339 gp2x_video_flip();\r
340\r
341 if (!(PicoOpt&0x10)) {\r
342 if (!(Pico.video.reg[1]&8)) {\r
343 if (currentConfig.EmuOpt&0x80) {\r
344 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
345 } else {\r
346 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
347 }\r
348 } else {\r
349 DrawLineDest = gp2x_screen;\r
350 }\r
351 }\r
352}\r
353\r
354\r
355// clears whole screen or just the notice area (in all buffers)\r
356static void clearArea(int full)\r
357{\r
daf91588 358 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
359 // 8-bit renderers\r
360 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
361 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
362 } else {\r
720ee7f6 363 // 16bit accurate renderer\r
364 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
365 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 366 }\r
367}\r
368\r
369\r
370static void vidResetMode(void)\r
371{\r
372 if (PicoOpt&0x10) {\r
720ee7f6 373 gp2x_video_changemode(8);\r
720ee7f6 374 } else if (currentConfig.EmuOpt&0x80) {\r
13059a60 375 gp2x_video_changemode(16);\r
720ee7f6 376 PicoDrawSetColorFormat(1);\r
377 PicoScan = EmuScan16;\r
378 PicoScan(0, 0);\r
379 } else {\r
daf91588 380 gp2x_video_changemode(8);\r
381 PicoDrawSetColorFormat(2);\r
382 PicoScan = EmuScan8;\r
383 PicoScan(0, 0);\r
384 }\r
385 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
386 // setup pal for 8-bit modes\r
387 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
388 localPal[0xd0] = 0x00c00000;\r
720ee7f6 389 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
390 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 391 gp2x_video_setpalette(localPal, 0x100);\r
392 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
393 gp2x_video_flip();\r
720ee7f6 394 }\r
395 Pico.m.dirtyPal = 1;\r
396 // reset scaling\r
79cad122 397 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
398 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
399 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
720ee7f6 400}\r
401\r
402\r
dfa4c846 403static void emu_msg_cb(const char *msg)\r
404{\r
405 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
406 // 8-bit renderers\r
407 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
408 osd_text(4, 232, msg);\r
409 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
410 } else {\r
411 // 16bit accurate renderer\r
412 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
413 osd_text(4, 232, msg);\r
414 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
415 }\r
416 gettimeofday(&noticeMsgTime, 0);\r
417 noticeMsgTime.tv_sec -= 2;\r
e5589947 418\r
419 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
420 reset_timing = 1;\r
dfa4c846 421}\r
422\r
1078e544 423static void emu_state_cb(const char *str)\r
424{\r
425 clearArea(0);\r
426 blit("", str);\r
427}\r
428\r
5e2e14f2 429static void emu_msg_tray_open(void)\r
430{\r
431 strcpy(noticeMsg, "CD tray opened");\r
432 gettimeofday(&noticeMsgTime, 0);\r
433}\r
434\r
720ee7f6 435static void RunEvents(unsigned int which)\r
436{\r
437 if(which & 0x1800) { // save or load (but not both)\r
438 int do_it = 1;\r
f013066e 439 if ( emu_checkSaveFile(state_slot) &&\r
46ede6a6 440 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
441 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
720ee7f6 442 unsigned long keys;\r
46ede6a6 443 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
720ee7f6 444 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
445 usleep(50*1024);\r
446 if (keys & GP2X_X) do_it = 0;\r
447 clearArea(0);\r
448 }\r
449 if (do_it) {\r
0805b5b4 450 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
1078e544 451 PicoStateProgressCB = emu_state_cb;\r
452 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
0805b5b4 453 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
1078e544 454 PicoStateProgressCB = NULL;\r
720ee7f6 455 }\r
456\r
457 reset_timing = 1;\r
458 }\r
459 if(which & 0x0400) { // switch renderer\r
460 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
461 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
462 else currentConfig.EmuOpt &= ~0x80;\r
463\r
464 vidResetMode();\r
465\r
466 if (PicoOpt&0x10) {\r
467 strcpy(noticeMsg, " 8bit fast renderer");\r
468 } else if (currentConfig.EmuOpt&0x80) {\r
469 strcpy(noticeMsg, "16bit accurate renderer");\r
470 } else {\r
471 strcpy(noticeMsg, " 8bit accurate renderer");\r
472 }\r
473\r
474 gettimeofday(&noticeMsgTime, 0);\r
475 }\r
476 if(which & 0x0300) {\r
477 if(which&0x0200) {\r
478 state_slot -= 1;\r
479 if(state_slot < 0) state_slot = 9;\r
480 } else {\r
481 state_slot += 1;\r
482 if(state_slot > 9) state_slot = 0;\r
483 }\r
f013066e 484 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
720ee7f6 485 gettimeofday(&noticeMsgTime, 0);\r
486 }\r
487 if(which & 0x0080) {\r
488 engineState = PGS_Menu;\r
489 }\r
490}\r
491\r
492\r
493static void updateKeys(void)\r
494{\r
495 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
496 static unsigned long prevEvents = 0;\r
497 int joy, i;\r
498\r
499 keys = gp2x_joystick_read(0);\r
500 if (keys & GP2X_SELECT) {\r
501 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
502 // wait until select is released, so menu would not resume game\r
503 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
504 }\r
505\r
506 keys &= CONFIGURABLE_KEYS;\r
507\r
508 for (i = 0; i < 32; i++)\r
509 {\r
510 if (keys & (1 << i)) {\r
511 int pl, acts = currentConfig.KeyBinds[i];\r
512 if (!acts) continue;\r
513 pl = (acts >> 16) & 1;\r
514 if (combo_keys & (1 << i)) {\r
515 int u = i+1, acts_c = acts & combo_acts;\r
516 // let's try to find the other one\r
517 if (acts_c)\r
518 for (; u < 32; u++)\r
519 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
520 allActions[pl] |= acts_c;\r
521 keys &= ~((1 << i) | (1 << u));\r
522 break;\r
523 }\r
524 // add non-combo actions if combo ones were not found\r
525 if (!acts_c || u == 32)\r
526 allActions[pl] |= acts & ~combo_acts;\r
527 } else {\r
528 allActions[pl] |= acts;\r
529 }\r
530 }\r
531 }\r
532\r
533 // add joy inputs\r
534 if (num_of_joys > 0)\r
535 {\r
536 gp2x_usbjoy_update();\r
537 for (joy = 0; joy < num_of_joys; joy++) {\r
538 int keys = gp2x_usbjoy_check2(joy);\r
539 for (i = 0; i < 32; i++) {\r
540 if (keys & (1 << i)) {\r
541 int acts = currentConfig.JoyBinds[joy][i];\r
542 int pl = (acts >> 16) & 1;\r
543 allActions[pl] |= acts;\r
544 }\r
545 }\r
546 }\r
547 }\r
548\r
25fced50 549 PicoPad[0] = (unsigned short) allActions[0];\r
550 PicoPad[1] = (unsigned short) allActions[1];\r
720ee7f6 551\r
552 events = (allActions[0] | allActions[1]) >> 16;\r
553\r
554 // volume is treated in special way and triggered every frame\r
555 if(events & 0x6000) {\r
556 int vol = currentConfig.volume;\r
557 if (events & 0x2000) {\r
5e2e14f2 558 if (vol < 99) vol++;\r
720ee7f6 559 } else {\r
560 if (vol > 0) vol--;\r
561 }\r
562 gp2x_sound_volume(vol, vol);\r
563 sprintf(noticeMsg, "VOL: %02i", vol);\r
564 gettimeofday(&noticeMsgTime, 0);\r
565 currentConfig.volume = vol;\r
566 }\r
567\r
568 events &= ~prevEvents;\r
569 if (events) RunEvents(events);\r
f013066e 570 if (movie_data) emu_updateMovie();\r
720ee7f6 571\r
572 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
573}\r
574\r
720ee7f6 575\r
3ef975c9 576static void updateSound(int len)\r
720ee7f6 577{\r
3ef975c9 578 if (PicoOpt&8) len<<=1;\r
720ee7f6 579\r
d9a18943 580 /* avoid writing audio when lagging behind to prevent audio lag */\r
581 if (PicoSkipFrame != 2)\r
582 gp2x_sound_write(PsndOut, len<<1);\r
720ee7f6 583}\r
584\r
585\r
d9a18943 586static void SkipFrame(int do_audio)\r
720ee7f6 587{\r
d9a18943 588 PicoSkipFrame=do_audio ? 1 : 2;\r
720ee7f6 589 PicoFrame();\r
590 PicoSkipFrame=0;\r
720ee7f6 591}\r
592\r
593\r
f013066e 594void emu_forcedFrame(void)\r
4ffd2858 595{\r
596 int po_old = PicoOpt;\r
13059a60 597 int eo_old = currentConfig.EmuOpt;\r
598\r
599 PicoOpt &= ~0x0010;\r
600 PicoOpt |= 0x4080; // soft_scale | acc_sprites\r
601 currentConfig.EmuOpt |= 0x80;\r
4ffd2858 602\r
13059a60 603 //vidResetMode();\r
604 PicoDrawSetColorFormat(1);\r
605 PicoScan = EmuScan16;\r
606 PicoScan(0, 0);\r
607 Pico.m.dirtyPal = 1;\r
608 PicoFrameDrawOnly();\r
4ffd2858 609\r
13059a60 610/*\r
4ffd2858 611 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 612 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 613 clearArea(1);\r
dccc2bd0 614 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 615\r
c7a4ff64 616 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
4ffd2858 617 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
618 gp2x_video_setpalette(localPal, 0x40);\r
13059a60 619*/\r
e1aa0fa7 620 PicoOpt = po_old;\r
13059a60 621 currentConfig.EmuOpt = eo_old;\r
4ffd2858 622}\r
623\r
720ee7f6 624static void simpleWait(int thissec, int lim_time)\r
625{\r
626 struct timeval tval;\r
627\r
628 spend_cycles(1024);\r
629 gettimeofday(&tval, 0);\r
630 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
631\r
632 while(tval.tv_usec < lim_time)\r
633 {\r
634 spend_cycles(1024);\r
635 gettimeofday(&tval, 0);\r
636 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
637 }\r
638}\r
639\r
640\r
641void emu_Loop(void)\r
642{\r
643 static int gp2x_old_clock = 200;\r
65345ecc 644 static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;\r
720ee7f6 645 char fpsbuff[24]; // fps count c string\r
646 struct timeval tval; // timing\r
647 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
59d0f042 648 int target_fps, target_frametime, lim_time, vsync_offset, i;\r
720ee7f6 649 char *notice = 0;\r
650\r
651 printf("entered emu_Loop()\n");\r
652\r
653 if (gp2x_old_clock != currentConfig.CPUclock) {\r
654 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
655 set_FCLK(currentConfig.CPUclock);\r
656 gp2x_old_clock = currentConfig.CPUclock;\r
657 printf(" done\n");\r
658 }\r
659\r
55a951dd 660 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
661 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 662 gp2x_old_gamma = currentConfig.gamma;\r
55a951dd 663 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 664 }\r
665\r
59d0f042 666 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
667 if (currentConfig.EmuOpt&0x2000)\r
668 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
669 else unset_LCD_custom_rate();\r
670 }\r
671\r
672 EmuOpt_old = currentConfig.EmuOpt;\r
720ee7f6 673 fpsbuff[0] = 0;\r
674\r
675 // make sure we are in correct mode\r
676 vidResetMode();\r
f013066e 677 scaling_update();\r
e5d315a5 678 Pico.m.dirtyPal = 1;\r
720ee7f6 679 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
680 find_combos();\r
681\r
682 // pal/ntsc might have changed, reset related stuff\r
683 target_fps = Pico.m.pal ? 50 : 60;\r
684 target_frametime = 1000000/target_fps;\r
685 reset_timing = 1;\r
686\r
687 // prepare sound stuff\r
688 if(currentConfig.EmuOpt & 4) {\r
3ef975c9 689 int snd_excess_add;\r
4327ec37 690 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
691 ((PicoOpt&0x200) && crashed_940)) {\r
720ee7f6 692 /* if 940 is turned off, we need it to be put back to sleep */\r
693 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
8dfb9fd5 694 Reset940(1, 2);\r
720ee7f6 695 Pause940(1);\r
696 }\r
c4f2f371 697 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
720ee7f6 698 }\r
720ee7f6 699 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
4327ec37 700 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
701 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
720ee7f6 702 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
703 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
704 PicoWriteSound = updateSound;\r
3ef975c9 705 memset(sndBuffer, 0, sizeof(sndBuffer));\r
706 PsndOut = sndBuffer;\r
720ee7f6 707 PsndRate_old = PsndRate;\r
720ee7f6 708 PicoOpt_old = PicoOpt;\r
709 pal_old = Pico.m.pal;\r
710 } else {\r
711 PsndOut = 0;\r
712 }\r
713\r
5f9922e6 714 // prepare CD buffer\r
715 if (PicoMCD & 1) PicoCDBufferInit();\r
716\r
59d0f042 717 // calc vsync offset to sync timing code with vsync\r
718 if (currentConfig.EmuOpt&0x2000) {\r
719 gettimeofday(&tval, 0);\r
720 gp2x_video_wait_vsync();\r
721 gettimeofday(&tval, 0);\r
722 vsync_offset = tval.tv_usec;\r
723 while (vsync_offset >= target_frametime)\r
724 vsync_offset -= target_frametime;\r
725 if (!vsync_offset) vsync_offset++;\r
726 printf("vsync_offset: %i\n", vsync_offset);\r
727 } else\r
728 vsync_offset = 0;\r
729\r
720ee7f6 730 // loop?\r
731 while (engineState == PGS_Running)\r
732 {\r
733 int modes;\r
734\r
735 gettimeofday(&tval, 0);\r
736 if(reset_timing) {\r
737 reset_timing = 0;\r
738 thissec = tval.tv_sec;\r
739 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
740 }\r
741\r
742 // show notice message?\r
743 if(noticeMsgTime.tv_sec) {\r
744 static int noticeMsgSum;\r
745 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
746 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
747 clearArea(0);\r
748 notice = 0;\r
749 } else {\r
750 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
751 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
752 notice = noticeMsg;\r
753 }\r
754 }\r
755\r
756 // check for mode changes\r
757 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
758 if (modes != oldmodes) {\r
759 int scalex = 320;\r
760 osd_fps_x = OSD_FPS_X;\r
761 if (modes & 4) {\r
762 vidCpyM2 = vidCpyM2_40col;\r
763 } else {\r
764 if (PicoOpt & 0x100) {\r
765 vidCpyM2 = vidCpyM2_32col_nobord;\r
766 scalex = 256;\r
767 osd_fps_x = OSD_FPS_X - 64;\r
768 } else {\r
769 vidCpyM2 = vidCpyM2_32col;\r
770 }\r
771 }\r
79cad122 772 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
773 gp2x_video_RGB_setscaling(8, scalex, 224);\r
774 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
720ee7f6 775 oldmodes = modes;\r
776 clearArea(1);\r
777 }\r
778\r
779 // second changed?\r
780 if(thissec != tval.tv_sec) {\r
781#ifdef BENCHMARK\r
782 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
783 if(++bench == 10) {\r
784 bench = 0;\r
785 bench_fps_s = bench_fps;\r
786 bf[bfp++ & 3] = bench_fps;\r
787 bench_fps = 0;\r
788 }\r
789 bench_fps += frames_shown;\r
790 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
791#else\r
792 if(currentConfig.EmuOpt & 2)\r
793 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
794#endif\r
795 thissec = tval.tv_sec;\r
796\r
797 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
798 frames_done = frames_shown = 0;\r
799 } else {\r
800 // it is quite common for this implementation to leave 1 fame unfinished\r
801 // when second changes, but we don't want buffer to starve.\r
802 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
803 updateKeys();\r
d9a18943 804 SkipFrame(1); frames_done++;\r
720ee7f6 805 }\r
806\r
807 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
808 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
809 if (frames_shown > frames_done) frames_shown = frames_done;\r
810 }\r
811 }\r
4327ec37 812#ifdef PFRAMES\r
813 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
814#endif\r
59d0f042 815\r
816 lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
720ee7f6 817 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
818 for(i = 0; i < currentConfig.Frameskip; i++) {\r
819 updateKeys();\r
d9a18943 820 SkipFrame(1); frames_done++;\r
720ee7f6 821 if (PsndOut) { // do framelimitting if sound is enabled\r
822 gettimeofday(&tval, 0);\r
823 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
824 if(tval.tv_usec < lim_time) { // we are too fast\r
825 simpleWait(thissec, lim_time);\r
826 }\r
827 }\r
828 lim_time += target_frametime;\r
829 }\r
830 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
831 // no time left for this frame - skip\r
f013066e 832 if (tval.tv_usec - lim_time >= 300000) {\r
d032c15a 833 /* something caused a slowdown for us (disk access? cache flush?)\r
834 * try to recover by resetting timing... */\r
835 reset_timing = 1;\r
836 continue;\r
837 }\r
720ee7f6 838 updateKeys();\r
8f1b51ef 839 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
720ee7f6 840 continue;\r
841 }\r
842\r
843 updateKeys();\r
844 PicoFrame();\r
845\r
47f22a1f 846#if 0\r
847if (Pico.m.frame_count == 31563) {\r
848 FILE *f;\r
849 f = fopen("ram_p.bin", "wb");\r
850 if (!f) { printf("!f\n"); exit(1); }\r
851 fwrite(Pico.ram, 1, 0x10000, f);\r
852 fclose(f);\r
853 exit(0);\r
854}\r
855#endif\r
1a20dbc8 856#if 0\r
857 // debug\r
858 {\r
47f22a1f 859 #define BYTE unsigned char\r
860 #define WORD unsigned short\r
861 struct\r
862 {\r
863 BYTE IDLength; /* 00h Size of Image ID field */\r
864 BYTE ColorMapType; /* 01h Color map type */\r
865 BYTE ImageType; /* 02h Image type code */\r
866 WORD CMapStart; /* 03h Color map origin */\r
867 WORD CMapLength; /* 05h Color map length */\r
868 BYTE CMapDepth; /* 07h Depth of color map entries */\r
869 WORD XOffset; /* 08h X origin of image */\r
870 WORD YOffset; /* 0Ah Y origin of image */\r
871 WORD Width; /* 0Ch Width of image */\r
872 WORD Height; /* 0Eh Height of image */\r
873 BYTE PixelDepth; /* 10h Image pixel size */\r
874 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
875 } __attribute__((packed)) TGAHEAD;\r
876 static unsigned short oldscr[320*240];\r
1a20dbc8 877 FILE *f; char name[128]; int i;\r
47f22a1f 878\r
879 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
880 TGAHEAD.ImageType = 2;\r
881 TGAHEAD.Width = 320;\r
882 TGAHEAD.Height = 240;\r
883 TGAHEAD.PixelDepth = 16;\r
884 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
885\r
886 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
887\r
888 for (i = 0; i < 320*240; i++)\r
889 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
890 if (i < 320*240)\r
1a20dbc8 891 {\r
47f22a1f 892 for (i = 0; i < 320*240; i++)\r
893 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
894 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
1a20dbc8 895 f = fopen(name, "wb");\r
896 if (!f) { printf("!f\n"); exit(1); }\r
47f22a1f 897 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
898 fwrite(oldscr, 1, 320*240*2, f);\r
1a20dbc8 899 fclose(f);\r
900 }\r
901 }\r
902#endif\r
903\r
720ee7f6 904 // check time\r
905 gettimeofday(&tval, 0);\r
d032c15a 906 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 907\r
f013066e 908 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
d032c15a 909 reset_timing = 1;\r
910 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 911 {\r
59d0f042 912 // sleep or vsync if we are still too fast\r
720ee7f6 913 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
720ee7f6 914 if(tval.tv_usec < lim_time)\r
915 {\r
916 // we are too fast\r
59d0f042 917 if (vsync_offset) {\r
918 if (lim_time - tval.tv_usec > target_frametime/2)\r
919 simpleWait(thissec, lim_time - target_frametime/4);\r
920 gp2x_video_wait_vsync();\r
921 } else {\r
922 simpleWait(thissec, lim_time);\r
923 }\r
720ee7f6 924 }\r
925 }\r
926\r
927 blit(fpsbuff, notice);\r
928\r
929 frames_done++; frames_shown++;\r
930 }\r
931\r
5f9922e6 932\r
933 if (PicoMCD & 1) PicoCDBufferFree();\r
934\r
720ee7f6 935 // save SRAM\r
936 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
6ab2f79c 937 emu_state_cb("Writing SRAM/BRAM..");\r
720ee7f6 938 emu_SaveLoadGame(0, 1);\r
939 SRam.changed = 0;\r
940 }\r
e5d315a5 941\r
13059a60 942 // if in 8bit mode, generate 16bit image for menu background\r
943 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
f013066e 944 emu_forcedFrame();\r
720ee7f6 945}\r
946\r
947\r
948void emu_ResetGame(void)\r
949{\r
950 PicoReset(0);\r
951 reset_timing = 1;\r
952}\r
953\r
954\r
PicoDrive's frontend in a lib