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psp bugfixes, refactoring, stuff
[picodrive.git] / platform / gp2x / emu.c
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6cadc2da 1// (c) Copyright 2006-2007 notaz, All rights reserved.\r
cc68a136 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
860c6322 9#include <sys/stat.h>\r
10#include <sys/types.h>\r
cc68a136 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
e5f426aa 21#include "../common/arm_utils.h"\r
22#include "../common/fonts.h"\r
ea8c405f 23#include "../common/emu.h"\r
cc68a136 24#include "cpuctrl.h"\r
25\r
b67ef287 26#include <Pico/PicoInt.h>\r
27#include <Pico/Patch.h>\r
28#include <zlib/zlib.h>\r
cc68a136 29\r
1dceadae 30//#define PFRAMES\r
cc68a136 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
cc68a136 38\r
39int engineState;\r
40int select_exits = 0;\r
cc68a136 41\r
42char romFileName[PATH_MAX];\r
cc68a136 43\r
44extern int crashed_940;\r
45\r
7a93adeb 46static short sndBuffer[2*44100/50];\r
cc68a136 47static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
00bd648e 48static int osd_fps_x;\r
cc68a136 49static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos\r
50static int gp2x_old_gamma = 100;\r
ea8c405f 51char noticeMsg[64]; // notice msg to draw\r
e5f426aa 52unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
00bd648e 53int reset_timing = 0;\r
cc68a136 54\r
ea8c405f 55static void emu_msg_cb(const char *msg);\r
56static void emu_msg_tray_open(void);\r
cc68a136 57\r
cc68a136 58\r
ea8c405f 59void emu_noticeMsgUpdated(void)\r
cc68a136 60{\r
ea8c405f 61 gettimeofday(&noticeMsgTime, 0);\r
cc68a136 62}\r
63\r
ea8c405f 64void emu_getMainDir(char *dst, int len)\r
8c1952f0 65{\r
ea8c405f 66 extern char **g_argv;\r
67 int j;\r
8c1952f0 68\r
ea8c405f 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
8c1952f0 75}\r
76\r
cc68a136 77void emu_Init(void)\r
78{\r
79 // make temp buffer for alt renderer\r
e5f426aa 80 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
81 if (!PicoDraw2FB)\r
cc68a136 82 {\r
e5f426aa 83 printf("PicoDraw2FB == 0\n");\r
cc68a136 84 }\r
85\r
860c6322 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
cc68a136 92 PicoInit();\r
66fdc0f0 93 PicoMessage = emu_msg_cb;\r
721cd396 94 PicoMCDopenTray = emu_msg_tray_open;\r
95 PicoMCDcloseTray = menu_loop_tray;\r
cc68a136 96}\r
97\r
98\r
cc68a136 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
107 int keyc = 0;\r
fa283c9a 108 if (act == 16 || act == 17) continue; // player2 flag\r
cc68a136 109 for (u = 0; u < 32; u++)\r
110 {\r
111 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
112 }\r
113 if (keyc > 1)\r
114 {\r
115 // loop again and mark those keys and actions as combo\r
116 for (u = 0; u < 32; u++)\r
117 {\r
118 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
119 combo_keys |= 1 << u;\r
120 combo_acts |= 1 << act;\r
121 }\r
122 }\r
123 }\r
124 }\r
125 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
126}\r
127\r
128\r
ea8c405f 129static void scaling_update(void)\r
2433f409 130{\r
131 PicoOpt &= ~0x4100;\r
132 switch (currentConfig.scaling) {\r
133 default: break; // off\r
134 case 1: // hw hor\r
135 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
136 case 3: PicoOpt |= 0x4000; break; // sw hor\r
137 }\r
138}\r
139\r
140\r
cc68a136 141void emu_Deinit(void)\r
142{\r
143 // save SRAM\r
144 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
145 emu_SaveLoadGame(0, 1);\r
146 SRam.changed = 0;\r
147 }\r
148\r
2433f409 149 if (!(currentConfig.EmuOpt & 0x20)) {\r
150 FILE *f = fopen(PicoConfigFile, "r+b");\r
151 if (!f) emu_WriteConfig(0);\r
152 else {\r
153 // if we already have config, reload it, except last ROM\r
154 fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);\r
155 fread(&currentConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);\r
156 fseek(f, 0, SEEK_SET);\r
157 fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
158 fflush(f);\r
159 fclose(f);\r
160#ifndef NO_SYNC\r
161 sync();\r
162#endif\r
163 }\r
164 }\r
165\r
e5f426aa 166 free(PicoDraw2FB);\r
cc68a136 167\r
168 PicoExit();\r
cc68a136 169\r
170 // restore gamma\r
171 if (gp2x_old_gamma != 100)\r
82bc9cdd 172 set_gamma(100, 0);\r
cc68a136 173}\r
174\r
ea8c405f 175void emu_setDefaultConfig(void)\r
176{\r
177 memset(&currentConfig, 0, sizeof(currentConfig));\r
178 currentConfig.lastRomFile[0] = 0;\r
179 currentConfig.EmuOpt = 0x1f | 0x600; // | confirm_save, cd_leds\r
180 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940, cd_pcm, cd_cdda\r
181 currentConfig.PsndRate = 22050; // 44100;\r
182 currentConfig.PicoRegion = 0; // auto\r
183 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
184 currentConfig.Frameskip = -1; // auto\r
185 currentConfig.CPUclock = 200;\r
186 currentConfig.volume = 50;\r
187 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
188 currentConfig.KeyBinds[ 4] = 1<<1;\r
189 currentConfig.KeyBinds[ 2] = 1<<2;\r
190 currentConfig.KeyBinds[ 6] = 1<<3;\r
191 currentConfig.KeyBinds[14] = 1<<4;\r
192 currentConfig.KeyBinds[13] = 1<<5;\r
193 currentConfig.KeyBinds[12] = 1<<6;\r
194 currentConfig.KeyBinds[ 8] = 1<<7;\r
195 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
196 currentConfig.KeyBinds[10] = 1<<27; // save state\r
197 currentConfig.KeyBinds[11] = 1<<28; // load state\r
198 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
199 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
200 currentConfig.gamma = 100;\r
201 currentConfig.PicoCDBuffers = 64;\r
202 currentConfig.scaling = 0;\r
a12e0116 203}\r
204\r
76276b0b 205void osd_text(int x, int y, const char *text)\r
cc68a136 206{\r
207 int len = strlen(text)*8;\r
208\r
209 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
bf098bc5 210 int *p, i, h;\r
cc68a136 211 x &= ~3; // align x\r
212 len = (len+3) >> 2;\r
213 for (h = 0; h < 8; h++) {\r
214 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
bf098bc5 215 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
cc68a136 216 }\r
ea8c405f 217 emu_textOut8(x, y, text);\r
cc68a136 218 } else {\r
219 int *p, i, h;\r
220 x &= ~1; // align x\r
221 len = (len+1) >> 1;\r
222 for (h = 0; h < 8; h++) {\r
223 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
224 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
225 }\r
ea8c405f 226 emu_textOut16(x, y, text);\r
cc68a136 227 }\r
228}\r
229\r
bf098bc5 230static void cd_leds(void)\r
231{\r
b837b69b 232// static\r
233 int old_reg;\r
9839d126 234// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
bf098bc5 235 old_reg = Pico_mcd->s68k_regs[0];\r
236\r
237 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
238 // 8-bit modes\r
239 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
240 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
4f265db7 241 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
242 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
243 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
244 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
245 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
246 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
bf098bc5 247 } else {\r
248 // 16-bit modes\r
4f265db7 249 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
bf098bc5 250 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
251 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
4f265db7 252 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
253 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
9839d126 254 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
bf098bc5 255 }\r
256}\r
257\r
cc68a136 258static int EmuScan16(unsigned int num, void *sdata)\r
259{\r
260 if (!(Pico.video.reg[1]&8)) num += 8;\r
261 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
262\r
263 return 0;\r
264}\r
265\r
266static int EmuScan8(unsigned int num, void *sdata)\r
267{\r
268 if (!(Pico.video.reg[1]&8)) num += 8;\r
269 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
270\r
271 return 0;\r
272}\r
273\r
e11c5548 274int localPal[0x100];\r
cc68a136 275static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
276\r
76276b0b 277static void blit(const char *fps, const char *notice)\r
cc68a136 278{\r
bf098bc5 279 int emu_opt = currentConfig.EmuOpt;\r
280\r
cc68a136 281 if (PicoOpt&0x10) {\r
282 // 8bit fast renderer\r
283 if (Pico.m.dirtyPal) {\r
284 Pico.m.dirtyPal = 0;\r
285 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
286 // feed new palette to our device\r
287 gp2x_video_setpalette(localPal, 0x40);\r
288 }\r
e5f426aa 289 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
bf098bc5 290 } else if (!(emu_opt&0x80)) {\r
cc68a136 291 // 8bit accurate renderer\r
292 if (Pico.m.dirtyPal) {\r
293 Pico.m.dirtyPal = 0;\r
294 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
295 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
296 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
297 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
298 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
bf098bc5 299 localPal[0xc0] = 0x0000c000;\r
300 localPal[0xd0] = 0x00c00000;\r
cc68a136 301 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
302 localPal[0xf0] = 0x00ffffff;\r
303 gp2x_video_setpalette(localPal, 0x100);\r
304 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
305 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
306 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
307 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
308 gp2x_video_setpalette(localPal, 0xc0);\r
309 } else {\r
310 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
311 gp2x_video_setpalette(localPal, 0x40);\r
312 }\r
313 }\r
314 }\r
315\r
2433f409 316 if (notice || (emu_opt & 2)) {\r
317 int h = 232;\r
318 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
319 if (notice) osd_text(4, h, notice);\r
320 if (emu_opt & 2)\r
321 osd_text(osd_fps_x, h, fps);\r
322 }\r
bf098bc5 323 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
324 cd_leds();\r
cc68a136 325\r
326 //gp2x_video_wait_vsync();\r
327 gp2x_video_flip();\r
328\r
329 if (!(PicoOpt&0x10)) {\r
330 if (!(Pico.video.reg[1]&8)) {\r
331 if (currentConfig.EmuOpt&0x80) {\r
332 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
333 } else {\r
334 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
335 }\r
336 } else {\r
337 DrawLineDest = gp2x_screen;\r
338 }\r
339 }\r
340}\r
341\r
342\r
343// clears whole screen or just the notice area (in all buffers)\r
344static void clearArea(int full)\r
345{\r
bf098bc5 346 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
347 // 8-bit renderers\r
348 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
349 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
350 } else {\r
cc68a136 351 // 16bit accurate renderer\r
352 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
353 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
cc68a136 354 }\r
355}\r
356\r
357\r
358static void vidResetMode(void)\r
359{\r
360 if (PicoOpt&0x10) {\r
cc68a136 361 gp2x_video_changemode(8);\r
cc68a136 362 } else if (currentConfig.EmuOpt&0x80) {\r
a12e0116 363 gp2x_video_changemode(16);\r
cc68a136 364 PicoDrawSetColorFormat(1);\r
365 PicoScan = EmuScan16;\r
366 PicoScan(0, 0);\r
367 } else {\r
bf098bc5 368 gp2x_video_changemode(8);\r
369 PicoDrawSetColorFormat(2);\r
370 PicoScan = EmuScan8;\r
371 PicoScan(0, 0);\r
372 }\r
373 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
374 // setup pal for 8-bit modes\r
375 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
376 localPal[0xd0] = 0x00c00000;\r
cc68a136 377 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
378 localPal[0xf0] = 0x00ffffff;\r
cc68a136 379 gp2x_video_setpalette(localPal, 0x100);\r
380 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
381 gp2x_video_flip();\r
cc68a136 382 }\r
383 Pico.m.dirtyPal = 1;\r
384 // reset scaling\r
2433f409 385 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
386 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
387 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
cc68a136 388}\r
389\r
390\r
66fdc0f0 391static void emu_msg_cb(const char *msg)\r
392{\r
393 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
394 // 8-bit renderers\r
395 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
396 osd_text(4, 232, msg);\r
397 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
398 } else {\r
399 // 16bit accurate renderer\r
400 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
401 osd_text(4, 232, msg);\r
402 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
403 }\r
404 gettimeofday(&noticeMsgTime, 0);\r
405 noticeMsgTime.tv_sec -= 2;\r
7a1f6e45 406\r
407 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
408 reset_timing = 1;\r
66fdc0f0 409}\r
410\r
fa1e5e29 411static void emu_state_cb(const char *str)\r
412{\r
413 clearArea(0);\r
414 blit("", str);\r
415}\r
416\r
721cd396 417static void emu_msg_tray_open(void)\r
418{\r
419 strcpy(noticeMsg, "CD tray opened");\r
420 gettimeofday(&noticeMsgTime, 0);\r
421}\r
422\r
cc68a136 423static void RunEvents(unsigned int which)\r
424{\r
425 if(which & 0x1800) { // save or load (but not both)\r
426 int do_it = 1;\r
ea8c405f 427 if ( emu_checkSaveFile(state_slot) &&\r
46969540 428 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
429 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
cc68a136 430 unsigned long keys;\r
46969540 431 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
cc68a136 432 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
433 usleep(50*1024);\r
434 if (keys & GP2X_X) do_it = 0;\r
435 clearArea(0);\r
436 }\r
437 if (do_it) {\r
76276b0b 438 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
fa1e5e29 439 PicoStateProgressCB = emu_state_cb;\r
440 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
76276b0b 441 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
fa1e5e29 442 PicoStateProgressCB = NULL;\r
cc68a136 443 }\r
444\r
445 reset_timing = 1;\r
446 }\r
447 if(which & 0x0400) { // switch renderer\r
448 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
449 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
450 else currentConfig.EmuOpt &= ~0x80;\r
451\r
452 vidResetMode();\r
453\r
454 if (PicoOpt&0x10) {\r
455 strcpy(noticeMsg, " 8bit fast renderer");\r
456 } else if (currentConfig.EmuOpt&0x80) {\r
457 strcpy(noticeMsg, "16bit accurate renderer");\r
458 } else {\r
459 strcpy(noticeMsg, " 8bit accurate renderer");\r
460 }\r
461\r
462 gettimeofday(&noticeMsgTime, 0);\r
463 }\r
464 if(which & 0x0300) {\r
465 if(which&0x0200) {\r
466 state_slot -= 1;\r
467 if(state_slot < 0) state_slot = 9;\r
468 } else {\r
469 state_slot += 1;\r
470 if(state_slot > 9) state_slot = 0;\r
471 }\r
ea8c405f 472 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
cc68a136 473 gettimeofday(&noticeMsgTime, 0);\r
474 }\r
475 if(which & 0x0080) {\r
476 engineState = PGS_Menu;\r
477 }\r
478}\r
479\r
480\r
481static void updateKeys(void)\r
482{\r
483 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
484 static unsigned long prevEvents = 0;\r
485 int joy, i;\r
486\r
487 keys = gp2x_joystick_read(0);\r
488 if (keys & GP2X_SELECT) {\r
489 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
490 // wait until select is released, so menu would not resume game\r
491 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
492 }\r
493\r
494 keys &= CONFIGURABLE_KEYS;\r
495\r
496 for (i = 0; i < 32; i++)\r
497 {\r
498 if (keys & (1 << i)) {\r
499 int pl, acts = currentConfig.KeyBinds[i];\r
500 if (!acts) continue;\r
501 pl = (acts >> 16) & 1;\r
502 if (combo_keys & (1 << i)) {\r
503 int u = i+1, acts_c = acts & combo_acts;\r
504 // let's try to find the other one\r
505 if (acts_c)\r
506 for (; u < 32; u++)\r
507 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
508 allActions[pl] |= acts_c;\r
509 keys &= ~((1 << i) | (1 << u));\r
510 break;\r
511 }\r
512 // add non-combo actions if combo ones were not found\r
513 if (!acts_c || u == 32)\r
514 allActions[pl] |= acts & ~combo_acts;\r
515 } else {\r
516 allActions[pl] |= acts;\r
517 }\r
518 }\r
519 }\r
520\r
521 // add joy inputs\r
522 if (num_of_joys > 0)\r
523 {\r
524 gp2x_usbjoy_update();\r
525 for (joy = 0; joy < num_of_joys; joy++) {\r
526 int keys = gp2x_usbjoy_check2(joy);\r
527 for (i = 0; i < 32; i++) {\r
528 if (keys & (1 << i)) {\r
529 int acts = currentConfig.JoyBinds[joy][i];\r
530 int pl = (acts >> 16) & 1;\r
531 allActions[pl] |= acts;\r
532 }\r
533 }\r
534 }\r
535 }\r
536\r
8c1952f0 537 PicoPad[0] = (unsigned short) allActions[0];\r
538 PicoPad[1] = (unsigned short) allActions[1];\r
cc68a136 539\r
540 events = (allActions[0] | allActions[1]) >> 16;\r
541\r
542 // volume is treated in special way and triggered every frame\r
543 if(events & 0x6000) {\r
544 int vol = currentConfig.volume;\r
545 if (events & 0x2000) {\r
721cd396 546 if (vol < 99) vol++;\r
cc68a136 547 } else {\r
548 if (vol > 0) vol--;\r
549 }\r
550 gp2x_sound_volume(vol, vol);\r
551 sprintf(noticeMsg, "VOL: %02i", vol);\r
552 gettimeofday(&noticeMsgTime, 0);\r
553 currentConfig.volume = vol;\r
554 }\r
555\r
556 events &= ~prevEvents;\r
557 if (events) RunEvents(events);\r
ea8c405f 558 if (movie_data) emu_updateMovie();\r
cc68a136 559\r
560 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
561}\r
562\r
cc68a136 563\r
7a93adeb 564static void updateSound(int len)\r
cc68a136 565{\r
7a93adeb 566 if (PicoOpt&8) len<<=1;\r
cc68a136 567\r
01bc6b19 568 /* avoid writing audio when lagging behind to prevent audio lag */\r
569 if (PicoSkipFrame != 2)\r
570 gp2x_sound_write(PsndOut, len<<1);\r
cc68a136 571}\r
572\r
573\r
01bc6b19 574static void SkipFrame(int do_audio)\r
cc68a136 575{\r
01bc6b19 576 PicoSkipFrame=do_audio ? 1 : 2;\r
cc68a136 577 PicoFrame();\r
578 PicoSkipFrame=0;\r
cc68a136 579}\r
580\r
581\r
ea8c405f 582void emu_forcedFrame(void)\r
860c6322 583{\r
584 int po_old = PicoOpt;\r
a12e0116 585 int eo_old = currentConfig.EmuOpt;\r
586\r
587 PicoOpt &= ~0x0010;\r
588 PicoOpt |= 0x4080; // soft_scale | acc_sprites\r
589 currentConfig.EmuOpt |= 0x80;\r
860c6322 590\r
a12e0116 591 //vidResetMode();\r
592 PicoDrawSetColorFormat(1);\r
593 PicoScan = EmuScan16;\r
594 PicoScan(0, 0);\r
595 Pico.m.dirtyPal = 1;\r
596 PicoFrameDrawOnly();\r
860c6322 597\r
a12e0116 598/*\r
860c6322 599 if (!(Pico.video.reg[12]&1)) {\r
68cba51e 600 vidCpyM2 = vidCpyM2_32col;\r
860c6322 601 clearArea(1);\r
68cba51e 602 } else vidCpyM2 = vidCpyM2_40col;\r
860c6322 603\r
e5f426aa 604 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
860c6322 605 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
606 gp2x_video_setpalette(localPal, 0x40);\r
a12e0116 607*/\r
48e8482f 608 PicoOpt = po_old;\r
a12e0116 609 currentConfig.EmuOpt = eo_old;\r
860c6322 610}\r
611\r
cc68a136 612static void simpleWait(int thissec, int lim_time)\r
613{\r
614 struct timeval tval;\r
615\r
616 spend_cycles(1024);\r
617 gettimeofday(&tval, 0);\r
618 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
619\r
620 while(tval.tv_usec < lim_time)\r
621 {\r
622 spend_cycles(1024);\r
623 gettimeofday(&tval, 0);\r
624 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
625 }\r
626}\r
627\r
628\r
629void emu_Loop(void)\r
630{\r
631 static int gp2x_old_clock = 200;\r
fa283c9a 632 static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;\r
cc68a136 633 char fpsbuff[24]; // fps count c string\r
634 struct timeval tval; // timing\r
635 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
aae35e84 636 int target_fps, target_frametime, lim_time, vsync_offset, i;\r
cc68a136 637 char *notice = 0;\r
638\r
639 printf("entered emu_Loop()\n");\r
640\r
641 if (gp2x_old_clock != currentConfig.CPUclock) {\r
642 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
643 set_FCLK(currentConfig.CPUclock);\r
644 gp2x_old_clock = currentConfig.CPUclock;\r
645 printf(" done\n");\r
646 }\r
647\r
82bc9cdd 648 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
649 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
cc68a136 650 gp2x_old_gamma = currentConfig.gamma;\r
82bc9cdd 651 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
cc68a136 652 }\r
653\r
aae35e84 654 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
655 if (currentConfig.EmuOpt&0x2000)\r
656 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
657 else unset_LCD_custom_rate();\r
658 }\r
659\r
660 EmuOpt_old = currentConfig.EmuOpt;\r
cc68a136 661 fpsbuff[0] = 0;\r
662\r
663 // make sure we are in correct mode\r
664 vidResetMode();\r
ea8c405f 665 scaling_update();\r
e11c5548 666 Pico.m.dirtyPal = 1;\r
cc68a136 667 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
668 find_combos();\r
669\r
670 // pal/ntsc might have changed, reset related stuff\r
671 target_fps = Pico.m.pal ? 50 : 60;\r
672 target_frametime = 1000000/target_fps;\r
673 reset_timing = 1;\r
674\r
675 // prepare sound stuff\r
676 if(currentConfig.EmuOpt & 4) {\r
7a93adeb 677 int snd_excess_add;\r
1dceadae 678 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
679 ((PicoOpt&0x200) && crashed_940)) {\r
cc68a136 680 /* if 940 is turned off, we need it to be put back to sleep */\r
681 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
b837b69b 682 Reset940(1, 2);\r
cc68a136 683 Pause940(1);\r
684 }\r
9d917eea 685 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
cc68a136 686 }\r
cc68a136 687 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1dceadae 688 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
689 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
cc68a136 690 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
691 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
692 PicoWriteSound = updateSound;\r
7a93adeb 693 memset(sndBuffer, 0, sizeof(sndBuffer));\r
694 PsndOut = sndBuffer;\r
cc68a136 695 PsndRate_old = PsndRate;\r
cc68a136 696 PicoOpt_old = PicoOpt;\r
697 pal_old = Pico.m.pal;\r
698 } else {\r
699 PsndOut = 0;\r
700 }\r
701\r
0a051f55 702 // prepare CD buffer\r
703 if (PicoMCD & 1) PicoCDBufferInit();\r
704\r
aae35e84 705 // calc vsync offset to sync timing code with vsync\r
706 if (currentConfig.EmuOpt&0x2000) {\r
707 gettimeofday(&tval, 0);\r
708 gp2x_video_wait_vsync();\r
709 gettimeofday(&tval, 0);\r
710 vsync_offset = tval.tv_usec;\r
711 while (vsync_offset >= target_frametime)\r
712 vsync_offset -= target_frametime;\r
713 if (!vsync_offset) vsync_offset++;\r
714 printf("vsync_offset: %i\n", vsync_offset);\r
715 } else\r
716 vsync_offset = 0;\r
717\r
cc68a136 718 // loop?\r
719 while (engineState == PGS_Running)\r
720 {\r
721 int modes;\r
722\r
723 gettimeofday(&tval, 0);\r
724 if(reset_timing) {\r
725 reset_timing = 0;\r
726 thissec = tval.tv_sec;\r
727 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
728 }\r
729\r
730 // show notice message?\r
731 if(noticeMsgTime.tv_sec) {\r
732 static int noticeMsgSum;\r
733 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
734 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
735 clearArea(0);\r
736 notice = 0;\r
737 } else {\r
738 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
739 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
740 notice = noticeMsg;\r
741 }\r
742 }\r
743\r
744 // check for mode changes\r
745 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
746 if (modes != oldmodes) {\r
747 int scalex = 320;\r
748 osd_fps_x = OSD_FPS_X;\r
749 if (modes & 4) {\r
750 vidCpyM2 = vidCpyM2_40col;\r
751 } else {\r
752 if (PicoOpt & 0x100) {\r
753 vidCpyM2 = vidCpyM2_32col_nobord;\r
754 scalex = 256;\r
755 osd_fps_x = OSD_FPS_X - 64;\r
756 } else {\r
757 vidCpyM2 = vidCpyM2_32col;\r
758 }\r
759 }\r
2433f409 760 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
761 gp2x_video_RGB_setscaling(8, scalex, 224);\r
762 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
cc68a136 763 oldmodes = modes;\r
764 clearArea(1);\r
765 }\r
766\r
767 // second changed?\r
768 if(thissec != tval.tv_sec) {\r
769#ifdef BENCHMARK\r
770 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
771 if(++bench == 10) {\r
772 bench = 0;\r
773 bench_fps_s = bench_fps;\r
774 bf[bfp++ & 3] = bench_fps;\r
775 bench_fps = 0;\r
776 }\r
777 bench_fps += frames_shown;\r
778 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
779#else\r
780 if(currentConfig.EmuOpt & 2)\r
781 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
782#endif\r
783 thissec = tval.tv_sec;\r
784\r
785 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
786 frames_done = frames_shown = 0;\r
787 } else {\r
788 // it is quite common for this implementation to leave 1 fame unfinished\r
789 // when second changes, but we don't want buffer to starve.\r
790 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
791 updateKeys();\r
01bc6b19 792 SkipFrame(1); frames_done++;\r
cc68a136 793 }\r
794\r
795 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
796 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
797 if (frames_shown > frames_done) frames_shown = frames_done;\r
798 }\r
799 }\r
1dceadae 800#ifdef PFRAMES\r
801 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
802#endif\r
aae35e84 803\r
804 lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
cc68a136 805 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
806 for(i = 0; i < currentConfig.Frameskip; i++) {\r
807 updateKeys();\r
01bc6b19 808 SkipFrame(1); frames_done++;\r
cc68a136 809 if (PsndOut) { // do framelimitting if sound is enabled\r
810 gettimeofday(&tval, 0);\r
811 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
812 if(tval.tv_usec < lim_time) { // we are too fast\r
813 simpleWait(thissec, lim_time);\r
814 }\r
815 }\r
816 lim_time += target_frametime;\r
817 }\r
818 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
819 // no time left for this frame - skip\r
ea8c405f 820 if (tval.tv_usec - lim_time >= 300000) {\r
4ff2d527 821 /* something caused a slowdown for us (disk access? cache flush?)\r
822 * try to recover by resetting timing... */\r
823 reset_timing = 1;\r
824 continue;\r
825 }\r
cc68a136 826 updateKeys();\r
00bd648e 827 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
cc68a136 828 continue;\r
829 }\r
830\r
831 updateKeys();\r
832 PicoFrame();\r
833\r
312e9ce1 834#if 0\r
835if (Pico.m.frame_count == 31563) {\r
836 FILE *f;\r
837 f = fopen("ram_p.bin", "wb");\r
838 if (!f) { printf("!f\n"); exit(1); }\r
839 fwrite(Pico.ram, 1, 0x10000, f);\r
840 fclose(f);\r
841 exit(0);\r
842}\r
843#endif\r
4f672280 844#if 0\r
845 // debug\r
846 {\r
312e9ce1 847 #define BYTE unsigned char\r
848 #define WORD unsigned short\r
849 struct\r
850 {\r
851 BYTE IDLength; /* 00h Size of Image ID field */\r
852 BYTE ColorMapType; /* 01h Color map type */\r
853 BYTE ImageType; /* 02h Image type code */\r
854 WORD CMapStart; /* 03h Color map origin */\r
855 WORD CMapLength; /* 05h Color map length */\r
856 BYTE CMapDepth; /* 07h Depth of color map entries */\r
857 WORD XOffset; /* 08h X origin of image */\r
858 WORD YOffset; /* 0Ah Y origin of image */\r
859 WORD Width; /* 0Ch Width of image */\r
860 WORD Height; /* 0Eh Height of image */\r
861 BYTE PixelDepth; /* 10h Image pixel size */\r
862 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
863 } __attribute__((packed)) TGAHEAD;\r
864 static unsigned short oldscr[320*240];\r
4f672280 865 FILE *f; char name[128]; int i;\r
312e9ce1 866\r
867 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
868 TGAHEAD.ImageType = 2;\r
869 TGAHEAD.Width = 320;\r
870 TGAHEAD.Height = 240;\r
871 TGAHEAD.PixelDepth = 16;\r
872 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
873\r
874 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
875\r
876 for (i = 0; i < 320*240; i++)\r
877 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
878 if (i < 320*240)\r
4f672280 879 {\r
312e9ce1 880 for (i = 0; i < 320*240; i++)\r
881 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
882 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
4f672280 883 f = fopen(name, "wb");\r
884 if (!f) { printf("!f\n"); exit(1); }\r
312e9ce1 885 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
886 fwrite(oldscr, 1, 320*240*2, f);\r
4f672280 887 fclose(f);\r
888 }\r
889 }\r
890#endif\r
891\r
cc68a136 892 // check time\r
893 gettimeofday(&tval, 0);\r
4ff2d527 894 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
cc68a136 895\r
ea8c405f 896 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
4ff2d527 897 reset_timing = 1;\r
898 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
cc68a136 899 {\r
aae35e84 900 // sleep or vsync if we are still too fast\r
cc68a136 901 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
cc68a136 902 if(tval.tv_usec < lim_time)\r
903 {\r
904 // we are too fast\r
aae35e84 905 if (vsync_offset) {\r
906 if (lim_time - tval.tv_usec > target_frametime/2)\r
907 simpleWait(thissec, lim_time - target_frametime/4);\r
908 gp2x_video_wait_vsync();\r
909 } else {\r
910 simpleWait(thissec, lim_time);\r
911 }\r
cc68a136 912 }\r
913 }\r
914\r
915 blit(fpsbuff, notice);\r
916\r
917 frames_done++; frames_shown++;\r
918 }\r
919\r
0a051f55 920\r
921 if (PicoMCD & 1) PicoCDBufferFree();\r
922\r
cc68a136 923 // save SRAM\r
924 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
6cadc2da 925 emu_state_cb("Writing SRAM/BRAM..");\r
cc68a136 926 emu_SaveLoadGame(0, 1);\r
927 SRam.changed = 0;\r
928 }\r
e11c5548 929\r
a12e0116 930 // if in 8bit mode, generate 16bit image for menu background\r
931 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
ea8c405f 932 emu_forcedFrame();\r
cc68a136 933}\r
934\r
935\r
936void emu_ResetGame(void)\r
937{\r
938 PicoReset(0);\r
939 reset_timing = 1;\r
940}\r
941\r
942\r
fast MegaDrive/MegaCD/32X emulator