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bugfixes, new config system and messed code for it
[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
0ae25549 24#include "../common/config.h"\r
720ee7f6 25#include "cpuctrl.h"\r
26\r
70d2ecc5 27#include <Pico/PicoInt.h>\r
28#include <Pico/Patch.h>\r
0480e6c9 29#include <Pico/sound/mix.h>\r
70d2ecc5 30#include <zlib/zlib.h>\r
720ee7f6 31\r
4327ec37 32//#define PFRAMES\r
720ee7f6 33\r
34#ifdef BENCHMARK\r
35#define OSD_FPS_X 220\r
36#else\r
37#define OSD_FPS_X 260\r
38#endif\r
39\r
720ee7f6 40\r
41int engineState;\r
42int select_exits = 0;\r
720ee7f6 43\r
44char romFileName[PATH_MAX];\r
720ee7f6 45\r
46extern int crashed_940;\r
47\r
6245d5a0 48static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
720ee7f6 49static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
8f1b51ef 50static int osd_fps_x;\r
720ee7f6 51static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos\r
52static int gp2x_old_gamma = 100;\r
f013066e 53char noticeMsg[64]; // notice msg to draw\r
c7a4ff64 54unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
8f1b51ef 55int reset_timing = 0;\r
720ee7f6 56\r
f013066e 57static void emu_msg_cb(const char *msg);\r
58static void emu_msg_tray_open(void);\r
720ee7f6 59\r
720ee7f6 60\r
f013066e 61void emu_noticeMsgUpdated(void)\r
720ee7f6 62{\r
f013066e 63 gettimeofday(&noticeMsgTime, 0);\r
720ee7f6 64}\r
65\r
f013066e 66void emu_getMainDir(char *dst, int len)\r
25fced50 67{\r
f013066e 68 extern char **g_argv;\r
69 int j;\r
25fced50 70\r
f013066e 71 strncpy(dst, g_argv[0], len);\r
72 len -= 32; // reserve\r
73 if (len < 0) len = 0;\r
74 dst[len] = 0;\r
75 for (j = strlen(dst); j > 0; j--)\r
76 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
25fced50 77}\r
78\r
720ee7f6 79void emu_Init(void)\r
80{\r
81 // make temp buffer for alt renderer\r
c7a4ff64 82 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
83 if (!PicoDraw2FB)\r
720ee7f6 84 {\r
c7a4ff64 85 printf("PicoDraw2FB == 0\n");\r
720ee7f6 86 }\r
87\r
4ffd2858 88 // make dirs for saves, cfgs, etc.\r
89 mkdir("mds", 0777);\r
90 mkdir("srm", 0777);\r
91 mkdir("brm", 0777);\r
92 mkdir("cfg", 0777);\r
93\r
720ee7f6 94 PicoInit();\r
dfa4c846 95 PicoMessage = emu_msg_cb;\r
5e2e14f2 96 PicoMCDopenTray = emu_msg_tray_open;\r
97 PicoMCDcloseTray = menu_loop_tray;\r
720ee7f6 98}\r
99\r
100\r
720ee7f6 101static void find_combos(void)\r
102{\r
103 int act, u;\r
104\r
105 // find out which keys and actions are combos\r
106 combo_keys = combo_acts = 0;\r
107 for (act = 0; act < 32; act++)\r
108 {\r
c93fb19e 109 int keyc = 0, keyc2 = 0;\r
65345ecc 110 if (act == 16 || act == 17) continue; // player2 flag\r
c93fb19e 111 if (act > 17)\r
720ee7f6 112 {\r
c93fb19e 113 for (u = 0; u < 32; u++)\r
114 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
115 }\r
116 else\r
117 {\r
118 for (u = 0; u < 32; u++)\r
119 if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1\r
120 (currentConfig.KeyBinds[u] & (1 << act))) keyc++;\r
121 for (u = 0; u < 32; u++)\r
122 if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2\r
123 (currentConfig.KeyBinds[u] & (1 << act))) keyc2++;\r
124 if (keyc2 > keyc) keyc = keyc2;\r
720ee7f6 125 }\r
126 if (keyc > 1)\r
127 {\r
128 // loop again and mark those keys and actions as combo\r
129 for (u = 0; u < 32; u++)\r
130 {\r
131 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
132 combo_keys |= 1 << u;\r
133 combo_acts |= 1 << act;\r
134 }\r
135 }\r
136 }\r
137 }\r
c93fb19e 138\r
720ee7f6 139 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
140}\r
141\r
142\r
f013066e 143static void scaling_update(void)\r
79cad122 144{\r
145 PicoOpt &= ~0x4100;\r
146 switch (currentConfig.scaling) {\r
147 default: break; // off\r
148 case 1: // hw hor\r
149 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
150 case 3: PicoOpt |= 0x4000; break; // sw hor\r
151 }\r
152}\r
153\r
154\r
720ee7f6 155void emu_Deinit(void)\r
156{\r
157 // save SRAM\r
158 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
159 emu_SaveLoadGame(0, 1);\r
160 SRam.changed = 0;\r
161 }\r
162\r
79cad122 163 if (!(currentConfig.EmuOpt & 0x20)) {\r
0ae25549 164 config_writelrom(PicoConfigFile);\r
79cad122 165#ifndef NO_SYNC\r
0ae25549 166 sync();\r
79cad122 167#endif\r
79cad122 168 }\r
169\r
c7a4ff64 170 free(PicoDraw2FB);\r
720ee7f6 171\r
172 PicoExit();\r
720ee7f6 173\r
174 // restore gamma\r
175 if (gp2x_old_gamma != 100)\r
55a951dd 176 set_gamma(100, 0);\r
720ee7f6 177}\r
178\r
0ae25549 179void emu_prepareDefaultConfig(void)\r
180{\r
181 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
367b6f1f 182 defaultConfig.EmuOpt = 0x1d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds\r
183 defaultConfig.s_PicoOpt = 0x0f | 0x20e00; // | <- use_940, cd_pcm, cd_cdda, svp drc\r
0ae25549 184 defaultConfig.s_PsndRate = 44100;\r
185 defaultConfig.s_PicoRegion = 0; // auto\r
186 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
187 defaultConfig.s_PicoCDBuffers = 64;\r
188 defaultConfig.Frameskip = -1; // auto\r
189 defaultConfig.CPUclock = 200;\r
190 defaultConfig.volume = 50;\r
191 defaultConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
192 defaultConfig.KeyBinds[ 4] = 1<<1;\r
193 defaultConfig.KeyBinds[ 2] = 1<<2;\r
194 defaultConfig.KeyBinds[ 6] = 1<<3;\r
195 defaultConfig.KeyBinds[14] = 1<<4;\r
196 defaultConfig.KeyBinds[13] = 1<<5;\r
197 defaultConfig.KeyBinds[12] = 1<<6;\r
198 defaultConfig.KeyBinds[ 8] = 1<<7;\r
199 defaultConfig.KeyBinds[15] = 1<<26; // switch rend\r
200 defaultConfig.KeyBinds[10] = 1<<27; // save state\r
201 defaultConfig.KeyBinds[11] = 1<<28; // load state\r
202 defaultConfig.KeyBinds[23] = 1<<29; // vol up\r
203 defaultConfig.KeyBinds[22] = 1<<30; // vol down\r
204 defaultConfig.gamma = 100;\r
205 defaultConfig.scaling = 0;\r
206}\r
207\r
f013066e 208void emu_setDefaultConfig(void)\r
209{\r
0ae25549 210 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
211 PicoOpt = currentConfig.s_PicoOpt;\r
212 PsndRate = currentConfig.s_PsndRate;\r
213 PicoRegionOverride = currentConfig.s_PicoRegion;\r
214 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
215 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
13059a60 216}\r
217\r
0805b5b4 218void osd_text(int x, int y, const char *text)\r
720ee7f6 219{\r
220 int len = strlen(text)*8;\r
221\r
222 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
daf91588 223 int *p, i, h;\r
720ee7f6 224 x &= ~3; // align x\r
225 len = (len+3) >> 2;\r
226 for (h = 0; h < 8; h++) {\r
227 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
daf91588 228 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
720ee7f6 229 }\r
f013066e 230 emu_textOut8(x, y, text);\r
720ee7f6 231 } else {\r
232 int *p, i, h;\r
233 x &= ~1; // align x\r
234 len = (len+1) >> 1;\r
235 for (h = 0; h < 8; h++) {\r
236 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
237 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
238 }\r
f013066e 239 emu_textOut16(x, y, text);\r
720ee7f6 240 }\r
241}\r
242\r
daf91588 243static void cd_leds(void)\r
244{\r
8dfb9fd5 245// static\r
246 int old_reg;\r
8ede36b9 247// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
daf91588 248 old_reg = Pico_mcd->s68k_regs[0];\r
249\r
250 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
251 // 8-bit modes\r
252 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
253 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
49fe50f0 254 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
255 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
256 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
257 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
258 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
259 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
daf91588 260 } else {\r
261 // 16-bit modes\r
49fe50f0 262 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
daf91588 263 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
264 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 265 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
266 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
8ede36b9 267 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
daf91588 268 }\r
269}\r
270\r
720ee7f6 271static int EmuScan16(unsigned int num, void *sdata)\r
272{\r
273 if (!(Pico.video.reg[1]&8)) num += 8;\r
274 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
275\r
276 return 0;\r
277}\r
278\r
279static int EmuScan8(unsigned int num, void *sdata)\r
280{\r
281 if (!(Pico.video.reg[1]&8)) num += 8;\r
282 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
283\r
284 return 0;\r
285}\r
286\r
e5d315a5 287int localPal[0x100];\r
720ee7f6 288static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
289\r
0805b5b4 290static void blit(const char *fps, const char *notice)\r
720ee7f6 291{\r
daf91588 292 int emu_opt = currentConfig.EmuOpt;\r
293\r
b3818d1e 294 if (PicoOpt&0x10)\r
295 {\r
720ee7f6 296 // 8bit fast renderer\r
297 if (Pico.m.dirtyPal) {\r
298 Pico.m.dirtyPal = 0;\r
299 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
300 // feed new palette to our device\r
301 gp2x_video_setpalette(localPal, 0x40);\r
302 }\r
b3818d1e 303 // a hack for VR\r
304 if (PicoRead16Hook == PicoSVPRead16)\r
305 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
306 // do actual copy\r
c7a4ff64 307 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
b3818d1e 308 }\r
309 else if (!(emu_opt&0x80))\r
310 {\r
720ee7f6 311 // 8bit accurate renderer\r
312 if (Pico.m.dirtyPal) {\r
313 Pico.m.dirtyPal = 0;\r
314 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
315 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
316 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
317 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
318 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
daf91588 319 localPal[0xc0] = 0x0000c000;\r
320 localPal[0xd0] = 0x00c00000;\r
720ee7f6 321 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
322 localPal[0xf0] = 0x00ffffff;\r
323 gp2x_video_setpalette(localPal, 0x100);\r
324 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
325 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
326 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
327 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
328 gp2x_video_setpalette(localPal, 0xc0);\r
329 } else {\r
330 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
331 gp2x_video_setpalette(localPal, 0x40);\r
332 }\r
333 }\r
334 }\r
335\r
79cad122 336 if (notice || (emu_opt & 2)) {\r
337 int h = 232;\r
338 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
339 if (notice) osd_text(4, h, notice);\r
340 if (emu_opt & 2)\r
341 osd_text(osd_fps_x, h, fps);\r
342 }\r
daf91588 343 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
344 cd_leds();\r
720ee7f6 345\r
346 //gp2x_video_wait_vsync();\r
347 gp2x_video_flip();\r
348\r
349 if (!(PicoOpt&0x10)) {\r
350 if (!(Pico.video.reg[1]&8)) {\r
351 if (currentConfig.EmuOpt&0x80) {\r
352 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
353 } else {\r
354 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
355 }\r
356 } else {\r
357 DrawLineDest = gp2x_screen;\r
358 }\r
359 }\r
360}\r
361\r
362\r
363// clears whole screen or just the notice area (in all buffers)\r
364static void clearArea(int full)\r
365{\r
daf91588 366 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
367 // 8-bit renderers\r
368 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
369 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
370 } else {\r
720ee7f6 371 // 16bit accurate renderer\r
372 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
373 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 374 }\r
375}\r
376\r
377\r
378static void vidResetMode(void)\r
379{\r
380 if (PicoOpt&0x10) {\r
720ee7f6 381 gp2x_video_changemode(8);\r
720ee7f6 382 } else if (currentConfig.EmuOpt&0x80) {\r
13059a60 383 gp2x_video_changemode(16);\r
720ee7f6 384 PicoDrawSetColorFormat(1);\r
385 PicoScan = EmuScan16;\r
386 PicoScan(0, 0);\r
387 } else {\r
daf91588 388 gp2x_video_changemode(8);\r
389 PicoDrawSetColorFormat(2);\r
390 PicoScan = EmuScan8;\r
391 PicoScan(0, 0);\r
392 }\r
393 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
394 // setup pal for 8-bit modes\r
395 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
396 localPal[0xd0] = 0x00c00000;\r
720ee7f6 397 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
398 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 399 gp2x_video_setpalette(localPal, 0x100);\r
400 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
401 gp2x_video_flip();\r
720ee7f6 402 }\r
403 Pico.m.dirtyPal = 1;\r
404 // reset scaling\r
79cad122 405 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
406 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
407 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
720ee7f6 408}\r
409\r
410\r
dfa4c846 411static void emu_msg_cb(const char *msg)\r
412{\r
413 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
414 // 8-bit renderers\r
415 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
416 osd_text(4, 232, msg);\r
417 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
418 } else {\r
419 // 16bit accurate renderer\r
420 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
421 osd_text(4, 232, msg);\r
422 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
423 }\r
424 gettimeofday(&noticeMsgTime, 0);\r
425 noticeMsgTime.tv_sec -= 2;\r
e5589947 426\r
427 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
428 reset_timing = 1;\r
dfa4c846 429}\r
430\r
1078e544 431static void emu_state_cb(const char *str)\r
432{\r
433 clearArea(0);\r
434 blit("", str);\r
435}\r
436\r
5e2e14f2 437static void emu_msg_tray_open(void)\r
438{\r
439 strcpy(noticeMsg, "CD tray opened");\r
440 gettimeofday(&noticeMsgTime, 0);\r
441}\r
442\r
0480e6c9 443static void update_volume(int has_changed, int is_up)\r
444{\r
445 static int prev_frame = 0, wait_frames = 0;\r
446 int vol = currentConfig.volume;\r
447\r
448 if (has_changed)\r
449 {\r
450 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
451 wait_frames++;\r
452 else {\r
453 if (is_up) {\r
454 if (vol < 99) vol++;\r
455 } else {\r
456 if (vol > 0) vol--;\r
457 }\r
458 wait_frames = 0;\r
459 gp2x_sound_volume(vol, vol);\r
460 currentConfig.volume = vol;\r
461 }\r
462 sprintf(noticeMsg, "VOL: %02i", vol);\r
463 gettimeofday(&noticeMsgTime, 0);\r
464 prev_frame = Pico.m.frame_count;\r
465 }\r
466\r
467 // set the right mixer func\r
468 if (!(PicoOpt&8)) return; // just use defaults for mono\r
469 if (vol >= 5)\r
470 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
471 else {\r
472 mix_32_to_16l_level = 5 - vol;\r
473 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
474 }\r
475}\r
476\r
477static void change_fast_forward(int set_on)\r
478{\r
479 static void *set_PsndOut = NULL;\r
480 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
481\r
482 if (set_on && !is_on) {\r
483 set_PsndOut = PsndOut;\r
484 set_Frameskip = currentConfig.Frameskip;\r
485 set_EmuOpt = currentConfig.EmuOpt;\r
486 PsndOut = NULL;\r
487 currentConfig.Frameskip = 8;\r
488 currentConfig.EmuOpt &= ~4;\r
489 is_on = 1;\r
490 }\r
491 else if (!set_on && is_on) {\r
492 PsndOut = set_PsndOut;\r
493 currentConfig.Frameskip = set_Frameskip;\r
494 currentConfig.EmuOpt = set_EmuOpt;\r
495 PsndRerate(1);\r
496 update_volume(0, 0);\r
497 reset_timing = 1;\r
498 is_on = 0;\r
499 }\r
500}\r
501\r
720ee7f6 502static void RunEvents(unsigned int which)\r
503{\r
0480e6c9 504 if (which & 0x1800) // save or load (but not both)\r
505 {\r
720ee7f6 506 int do_it = 1;\r
f013066e 507 if ( emu_checkSaveFile(state_slot) &&\r
46ede6a6 508 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
509 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
720ee7f6 510 unsigned long keys;\r
46ede6a6 511 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
720ee7f6 512 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
513 usleep(50*1024);\r
514 if (keys & GP2X_X) do_it = 0;\r
515 clearArea(0);\r
516 }\r
517 if (do_it) {\r
0805b5b4 518 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
1078e544 519 PicoStateProgressCB = emu_state_cb;\r
520 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
0805b5b4 521 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
1078e544 522 PicoStateProgressCB = NULL;\r
720ee7f6 523 }\r
524\r
525 reset_timing = 1;\r
526 }\r
0480e6c9 527 if (which & 0x0400) // switch renderer\r
528 {\r
720ee7f6 529 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
530 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
531 else currentConfig.EmuOpt &= ~0x80;\r
532\r
533 vidResetMode();\r
534\r
535 if (PicoOpt&0x10) {\r
536 strcpy(noticeMsg, " 8bit fast renderer");\r
537 } else if (currentConfig.EmuOpt&0x80) {\r
538 strcpy(noticeMsg, "16bit accurate renderer");\r
539 } else {\r
540 strcpy(noticeMsg, " 8bit accurate renderer");\r
541 }\r
542\r
543 gettimeofday(&noticeMsgTime, 0);\r
544 }\r
0480e6c9 545 if (which & 0x0300)\r
546 {\r
720ee7f6 547 if(which&0x0200) {\r
548 state_slot -= 1;\r
549 if(state_slot < 0) state_slot = 9;\r
550 } else {\r
551 state_slot += 1;\r
552 if(state_slot > 9) state_slot = 0;\r
553 }\r
f013066e 554 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
720ee7f6 555 gettimeofday(&noticeMsgTime, 0);\r
556 }\r
0480e6c9 557 if (which & 0x0080) {\r
720ee7f6 558 engineState = PGS_Menu;\r
559 }\r
560}\r
561\r
562\r
563static void updateKeys(void)\r
564{\r
565 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
566 static unsigned long prevEvents = 0;\r
567 int joy, i;\r
568\r
569 keys = gp2x_joystick_read(0);\r
570 if (keys & GP2X_SELECT) {\r
571 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
572 // wait until select is released, so menu would not resume game\r
573 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
574 }\r
575\r
576 keys &= CONFIGURABLE_KEYS;\r
577\r
578 for (i = 0; i < 32; i++)\r
579 {\r
580 if (keys & (1 << i)) {\r
581 int pl, acts = currentConfig.KeyBinds[i];\r
582 if (!acts) continue;\r
583 pl = (acts >> 16) & 1;\r
584 if (combo_keys & (1 << i)) {\r
585 int u = i+1, acts_c = acts & combo_acts;\r
586 // let's try to find the other one\r
587 if (acts_c)\r
588 for (; u < 32; u++)\r
589 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
590 allActions[pl] |= acts_c;\r
591 keys &= ~((1 << i) | (1 << u));\r
592 break;\r
593 }\r
594 // add non-combo actions if combo ones were not found\r
595 if (!acts_c || u == 32)\r
596 allActions[pl] |= acts & ~combo_acts;\r
597 } else {\r
598 allActions[pl] |= acts;\r
599 }\r
600 }\r
601 }\r
602\r
603 // add joy inputs\r
604 if (num_of_joys > 0)\r
605 {\r
606 gp2x_usbjoy_update();\r
607 for (joy = 0; joy < num_of_joys; joy++) {\r
608 int keys = gp2x_usbjoy_check2(joy);\r
609 for (i = 0; i < 32; i++) {\r
610 if (keys & (1 << i)) {\r
611 int acts = currentConfig.JoyBinds[joy][i];\r
612 int pl = (acts >> 16) & 1;\r
613 allActions[pl] |= acts;\r
614 }\r
615 }\r
616 }\r
617 }\r
618\r
25fced50 619 PicoPad[0] = (unsigned short) allActions[0];\r
620 PicoPad[1] = (unsigned short) allActions[1];\r
720ee7f6 621\r
622 events = (allActions[0] | allActions[1]) >> 16;\r
623\r
624 // volume is treated in special way and triggered every frame\r
0480e6c9 625 if (events & 0x6000)\r
626 update_volume(1, events & 0x2000);\r
627\r
628 if ((events ^ prevEvents) & 0x40)\r
629 change_fast_forward(events & 0x40);\r
720ee7f6 630\r
631 events &= ~prevEvents;\r
632 if (events) RunEvents(events);\r
f013066e 633 if (movie_data) emu_updateMovie();\r
720ee7f6 634\r
635 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
636}\r
637\r
720ee7f6 638\r
3ef975c9 639static void updateSound(int len)\r
720ee7f6 640{\r
3ef975c9 641 if (PicoOpt&8) len<<=1;\r
720ee7f6 642\r
d9a18943 643 /* avoid writing audio when lagging behind to prevent audio lag */\r
644 if (PicoSkipFrame != 2)\r
645 gp2x_sound_write(PsndOut, len<<1);\r
720ee7f6 646}\r
647\r
648\r
d9a18943 649static void SkipFrame(int do_audio)\r
720ee7f6 650{\r
d9a18943 651 PicoSkipFrame=do_audio ? 1 : 2;\r
720ee7f6 652 PicoFrame();\r
653 PicoSkipFrame=0;\r
720ee7f6 654}\r
655\r
656\r
f013066e 657void emu_forcedFrame(void)\r
4ffd2858 658{\r
659 int po_old = PicoOpt;\r
13059a60 660 int eo_old = currentConfig.EmuOpt;\r
661\r
662 PicoOpt &= ~0x0010;\r
663 PicoOpt |= 0x4080; // soft_scale | acc_sprites\r
664 currentConfig.EmuOpt |= 0x80;\r
4ffd2858 665\r
13059a60 666 //vidResetMode();\r
667 PicoDrawSetColorFormat(1);\r
668 PicoScan = EmuScan16;\r
669 PicoScan(0, 0);\r
670 Pico.m.dirtyPal = 1;\r
671 PicoFrameDrawOnly();\r
4ffd2858 672\r
13059a60 673/*\r
4ffd2858 674 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 675 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 676 clearArea(1);\r
dccc2bd0 677 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 678\r
c7a4ff64 679 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
4ffd2858 680 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
681 gp2x_video_setpalette(localPal, 0x40);\r
13059a60 682*/\r
e1aa0fa7 683 PicoOpt = po_old;\r
13059a60 684 currentConfig.EmuOpt = eo_old;\r
4ffd2858 685}\r
686\r
720ee7f6 687static void simpleWait(int thissec, int lim_time)\r
688{\r
689 struct timeval tval;\r
690\r
691 spend_cycles(1024);\r
692 gettimeofday(&tval, 0);\r
693 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
694\r
695 while(tval.tv_usec < lim_time)\r
696 {\r
697 spend_cycles(1024);\r
698 gettimeofday(&tval, 0);\r
699 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
700 }\r
701}\r
702\r
703\r
704void emu_Loop(void)\r
705{\r
706 static int gp2x_old_clock = 200;\r
65345ecc 707 static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;\r
720ee7f6 708 char fpsbuff[24]; // fps count c string\r
709 struct timeval tval; // timing\r
710 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
59d0f042 711 int target_fps, target_frametime, lim_time, vsync_offset, i;\r
720ee7f6 712 char *notice = 0;\r
713\r
714 printf("entered emu_Loop()\n");\r
715\r
716 if (gp2x_old_clock != currentConfig.CPUclock) {\r
717 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
718 set_FCLK(currentConfig.CPUclock);\r
719 gp2x_old_clock = currentConfig.CPUclock;\r
720 printf(" done\n");\r
721 }\r
722\r
55a951dd 723 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
724 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 725 gp2x_old_gamma = currentConfig.gamma;\r
55a951dd 726 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 727 }\r
728\r
59d0f042 729 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
730 if (currentConfig.EmuOpt&0x2000)\r
731 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
732 else unset_LCD_custom_rate();\r
733 }\r
734\r
735 EmuOpt_old = currentConfig.EmuOpt;\r
720ee7f6 736 fpsbuff[0] = 0;\r
737\r
738 // make sure we are in correct mode\r
739 vidResetMode();\r
f013066e 740 scaling_update();\r
e5d315a5 741 Pico.m.dirtyPal = 1;\r
720ee7f6 742 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
743 find_combos();\r
744\r
745 // pal/ntsc might have changed, reset related stuff\r
746 target_fps = Pico.m.pal ? 50 : 60;\r
747 target_frametime = 1000000/target_fps;\r
748 reset_timing = 1;\r
749\r
750 // prepare sound stuff\r
0480e6c9 751 if (currentConfig.EmuOpt & 4)\r
752 {\r
3ef975c9 753 int snd_excess_add;\r
4327ec37 754 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
755 ((PicoOpt&0x200) && crashed_940)) {\r
c4f2f371 756 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
720ee7f6 757 }\r
720ee7f6 758 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
4327ec37 759 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
760 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
720ee7f6 761 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
762 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
763 PicoWriteSound = updateSound;\r
0480e6c9 764 update_volume(0, 0);\r
3ef975c9 765 memset(sndBuffer, 0, sizeof(sndBuffer));\r
766 PsndOut = sndBuffer;\r
720ee7f6 767 PsndRate_old = PsndRate;\r
720ee7f6 768 PicoOpt_old = PicoOpt;\r
769 pal_old = Pico.m.pal;\r
770 } else {\r
0480e6c9 771 PsndOut = NULL;\r
720ee7f6 772 }\r
773\r
5f9922e6 774 // prepare CD buffer\r
775 if (PicoMCD & 1) PicoCDBufferInit();\r
776\r
59d0f042 777 // calc vsync offset to sync timing code with vsync\r
778 if (currentConfig.EmuOpt&0x2000) {\r
779 gettimeofday(&tval, 0);\r
780 gp2x_video_wait_vsync();\r
781 gettimeofday(&tval, 0);\r
782 vsync_offset = tval.tv_usec;\r
783 while (vsync_offset >= target_frametime)\r
784 vsync_offset -= target_frametime;\r
785 if (!vsync_offset) vsync_offset++;\r
786 printf("vsync_offset: %i\n", vsync_offset);\r
787 } else\r
788 vsync_offset = 0;\r
789\r
720ee7f6 790 // loop?\r
791 while (engineState == PGS_Running)\r
792 {\r
793 int modes;\r
794\r
795 gettimeofday(&tval, 0);\r
0480e6c9 796 if (reset_timing) {\r
720ee7f6 797 reset_timing = 0;\r
798 thissec = tval.tv_sec;\r
799 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
800 }\r
801\r
802 // show notice message?\r
0480e6c9 803 if (noticeMsgTime.tv_sec)\r
804 {\r
720ee7f6 805 static int noticeMsgSum;\r
806 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
807 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
808 clearArea(0);\r
809 notice = 0;\r
810 } else {\r
811 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
812 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
813 notice = noticeMsg;\r
814 }\r
815 }\r
816\r
817 // check for mode changes\r
818 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
0480e6c9 819 if (modes != oldmodes)\r
820 {\r
720ee7f6 821 int scalex = 320;\r
822 osd_fps_x = OSD_FPS_X;\r
823 if (modes & 4) {\r
824 vidCpyM2 = vidCpyM2_40col;\r
825 } else {\r
826 if (PicoOpt & 0x100) {\r
827 vidCpyM2 = vidCpyM2_32col_nobord;\r
828 scalex = 256;\r
829 osd_fps_x = OSD_FPS_X - 64;\r
830 } else {\r
831 vidCpyM2 = vidCpyM2_32col;\r
832 }\r
833 }\r
79cad122 834 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
835 gp2x_video_RGB_setscaling(8, scalex, 224);\r
836 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
720ee7f6 837 oldmodes = modes;\r
838 clearArea(1);\r
839 }\r
840\r
841 // second changed?\r
0480e6c9 842 if (thissec != tval.tv_sec)\r
843 {\r
720ee7f6 844#ifdef BENCHMARK\r
845 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
0480e6c9 846 if (++bench == 10) {\r
720ee7f6 847 bench = 0;\r
848 bench_fps_s = bench_fps;\r
849 bf[bfp++ & 3] = bench_fps;\r
850 bench_fps = 0;\r
851 }\r
852 bench_fps += frames_shown;\r
853 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
854#else\r
0480e6c9 855 if (currentConfig.EmuOpt & 2)\r
720ee7f6 856 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
0480e6c9 857 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
720ee7f6 858#endif\r
859 thissec = tval.tv_sec;\r
860\r
0480e6c9 861 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
720ee7f6 862 frames_done = frames_shown = 0;\r
863 } else {\r
864 // it is quite common for this implementation to leave 1 fame unfinished\r
865 // when second changes, but we don't want buffer to starve.\r
866 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
867 updateKeys();\r
d9a18943 868 SkipFrame(1); frames_done++;\r
720ee7f6 869 }\r
870\r
871 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
872 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
873 if (frames_shown > frames_done) frames_shown = frames_done;\r
874 }\r
875 }\r
4327ec37 876#ifdef PFRAMES\r
877 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
878#endif\r
59d0f042 879\r
880 lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
720ee7f6 881 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
882 for(i = 0; i < currentConfig.Frameskip; i++) {\r
883 updateKeys();\r
d9a18943 884 SkipFrame(1); frames_done++;\r
0480e6c9 885 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
720ee7f6 886 gettimeofday(&tval, 0);\r
887 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
888 if(tval.tv_usec < lim_time) { // we are too fast\r
889 simpleWait(thissec, lim_time);\r
890 }\r
891 }\r
892 lim_time += target_frametime;\r
893 }\r
894 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
895 // no time left for this frame - skip\r
f013066e 896 if (tval.tv_usec - lim_time >= 300000) {\r
d032c15a 897 /* something caused a slowdown for us (disk access? cache flush?)\r
898 * try to recover by resetting timing... */\r
899 reset_timing = 1;\r
900 continue;\r
901 }\r
720ee7f6 902 updateKeys();\r
8f1b51ef 903 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
720ee7f6 904 continue;\r
905 }\r
906\r
907 updateKeys();\r
908 PicoFrame();\r
909\r
47f22a1f 910#if 0\r
911if (Pico.m.frame_count == 31563) {\r
912 FILE *f;\r
913 f = fopen("ram_p.bin", "wb");\r
914 if (!f) { printf("!f\n"); exit(1); }\r
915 fwrite(Pico.ram, 1, 0x10000, f);\r
916 fclose(f);\r
917 exit(0);\r
918}\r
919#endif\r
1a20dbc8 920#if 0\r
921 // debug\r
922 {\r
47f22a1f 923 #define BYTE unsigned char\r
924 #define WORD unsigned short\r
925 struct\r
926 {\r
927 BYTE IDLength; /* 00h Size of Image ID field */\r
928 BYTE ColorMapType; /* 01h Color map type */\r
929 BYTE ImageType; /* 02h Image type code */\r
930 WORD CMapStart; /* 03h Color map origin */\r
931 WORD CMapLength; /* 05h Color map length */\r
932 BYTE CMapDepth; /* 07h Depth of color map entries */\r
933 WORD XOffset; /* 08h X origin of image */\r
934 WORD YOffset; /* 0Ah Y origin of image */\r
935 WORD Width; /* 0Ch Width of image */\r
936 WORD Height; /* 0Eh Height of image */\r
937 BYTE PixelDepth; /* 10h Image pixel size */\r
938 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
939 } __attribute__((packed)) TGAHEAD;\r
940 static unsigned short oldscr[320*240];\r
1a20dbc8 941 FILE *f; char name[128]; int i;\r
47f22a1f 942\r
943 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
944 TGAHEAD.ImageType = 2;\r
945 TGAHEAD.Width = 320;\r
946 TGAHEAD.Height = 240;\r
947 TGAHEAD.PixelDepth = 16;\r
948 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
949\r
950 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
951\r
952 for (i = 0; i < 320*240; i++)\r
953 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
954 if (i < 320*240)\r
1a20dbc8 955 {\r
47f22a1f 956 for (i = 0; i < 320*240; i++)\r
957 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
958 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
1a20dbc8 959 f = fopen(name, "wb");\r
960 if (!f) { printf("!f\n"); exit(1); }\r
47f22a1f 961 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
962 fwrite(oldscr, 1, 320*240*2, f);\r
1a20dbc8 963 fclose(f);\r
964 }\r
965 }\r
966#endif\r
967\r
720ee7f6 968 // check time\r
969 gettimeofday(&tval, 0);\r
d032c15a 970 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 971\r
f013066e 972 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
d032c15a 973 reset_timing = 1;\r
974 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 975 {\r
59d0f042 976 // sleep or vsync if we are still too fast\r
720ee7f6 977 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
0480e6c9 978 if (!reset_timing && tval.tv_usec < lim_time)\r
720ee7f6 979 {\r
980 // we are too fast\r
59d0f042 981 if (vsync_offset) {\r
982 if (lim_time - tval.tv_usec > target_frametime/2)\r
983 simpleWait(thissec, lim_time - target_frametime/4);\r
984 gp2x_video_wait_vsync();\r
985 } else {\r
986 simpleWait(thissec, lim_time);\r
987 }\r
720ee7f6 988 }\r
989 }\r
990\r
991 blit(fpsbuff, notice);\r
992\r
993 frames_done++; frames_shown++;\r
994 }\r
995\r
0480e6c9 996 change_fast_forward(0);\r
5f9922e6 997\r
998 if (PicoMCD & 1) PicoCDBufferFree();\r
999\r
720ee7f6 1000 // save SRAM\r
1001 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
6ab2f79c 1002 emu_state_cb("Writing SRAM/BRAM..");\r
720ee7f6 1003 emu_SaveLoadGame(0, 1);\r
1004 SRam.changed = 0;\r
1005 }\r
e5d315a5 1006\r
13059a60 1007 // if in 8bit mode, generate 16bit image for menu background\r
1008 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
f013066e 1009 emu_forcedFrame();\r
720ee7f6 1010}\r
1011\r
1012\r
1013void emu_ResetGame(void)\r
1014{\r
1015 PicoReset(0);\r
1016 reset_timing = 1;\r
1017}\r
1018\r
1019\r
PicoDrive's frontend in a lib