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new cfg file system
[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
182 defaultConfig.lastRomFile[0] = 0;\r
183 defaultConfig.EmuOpt = 0x1f | 0x600; // | confirm_save, cd_leds\r
184 defaultConfig.s_PicoOpt = 0x0f | 0xe00; // | use_940, cd_pcm, cd_cdda\r
185 defaultConfig.s_PsndRate = 44100;\r
186 defaultConfig.s_PicoRegion = 0; // auto\r
187 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
188 defaultConfig.s_PicoCDBuffers = 64;\r
189 defaultConfig.Frameskip = -1; // auto\r
190 defaultConfig.CPUclock = 200;\r
191 defaultConfig.volume = 50;\r
192 defaultConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
193 defaultConfig.KeyBinds[ 4] = 1<<1;\r
194 defaultConfig.KeyBinds[ 2] = 1<<2;\r
195 defaultConfig.KeyBinds[ 6] = 1<<3;\r
196 defaultConfig.KeyBinds[14] = 1<<4;\r
197 defaultConfig.KeyBinds[13] = 1<<5;\r
198 defaultConfig.KeyBinds[12] = 1<<6;\r
199 defaultConfig.KeyBinds[ 8] = 1<<7;\r
200 defaultConfig.KeyBinds[15] = 1<<26; // switch rend\r
201 defaultConfig.KeyBinds[10] = 1<<27; // save state\r
202 defaultConfig.KeyBinds[11] = 1<<28; // load state\r
203 defaultConfig.KeyBinds[23] = 1<<29; // vol up\r
204 defaultConfig.KeyBinds[22] = 1<<30; // vol down\r
205 defaultConfig.gamma = 100;\r
206 defaultConfig.scaling = 0;\r
207}\r
208\r
f013066e 209void emu_setDefaultConfig(void)\r
210{\r
0ae25549 211 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
212 PicoOpt = currentConfig.s_PicoOpt;\r
213 PsndRate = currentConfig.s_PsndRate;\r
214 PicoRegionOverride = currentConfig.s_PicoRegion;\r
215 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
216 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
13059a60 217}\r
218\r
0805b5b4 219void osd_text(int x, int y, const char *text)\r
720ee7f6 220{\r
221 int len = strlen(text)*8;\r
222\r
223 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
daf91588 224 int *p, i, h;\r
720ee7f6 225 x &= ~3; // align x\r
226 len = (len+3) >> 2;\r
227 for (h = 0; h < 8; h++) {\r
228 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
daf91588 229 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
720ee7f6 230 }\r
f013066e 231 emu_textOut8(x, y, text);\r
720ee7f6 232 } else {\r
233 int *p, i, h;\r
234 x &= ~1; // align x\r
235 len = (len+1) >> 1;\r
236 for (h = 0; h < 8; h++) {\r
237 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
238 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
239 }\r
f013066e 240 emu_textOut16(x, y, text);\r
720ee7f6 241 }\r
242}\r
243\r
daf91588 244static void cd_leds(void)\r
245{\r
8dfb9fd5 246// static\r
247 int old_reg;\r
8ede36b9 248// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
daf91588 249 old_reg = Pico_mcd->s68k_regs[0];\r
250\r
251 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
252 // 8-bit modes\r
253 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
254 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
49fe50f0 255 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
256 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
257 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
258 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
259 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
260 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
daf91588 261 } else {\r
262 // 16-bit modes\r
49fe50f0 263 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
daf91588 264 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
265 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 266 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
267 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
8ede36b9 268 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
daf91588 269 }\r
270}\r
271\r
720ee7f6 272static int EmuScan16(unsigned int num, void *sdata)\r
273{\r
274 if (!(Pico.video.reg[1]&8)) num += 8;\r
275 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
276\r
277 return 0;\r
278}\r
279\r
280static int EmuScan8(unsigned int num, void *sdata)\r
281{\r
282 if (!(Pico.video.reg[1]&8)) num += 8;\r
283 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
284\r
285 return 0;\r
286}\r
287\r
e5d315a5 288int localPal[0x100];\r
720ee7f6 289static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
290\r
0805b5b4 291static void blit(const char *fps, const char *notice)\r
720ee7f6 292{\r
daf91588 293 int emu_opt = currentConfig.EmuOpt;\r
294\r
b3818d1e 295 if (PicoOpt&0x10)\r
296 {\r
720ee7f6 297 // 8bit fast renderer\r
298 if (Pico.m.dirtyPal) {\r
299 Pico.m.dirtyPal = 0;\r
300 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
301 // feed new palette to our device\r
302 gp2x_video_setpalette(localPal, 0x40);\r
303 }\r
b3818d1e 304 // a hack for VR\r
305 if (PicoRead16Hook == PicoSVPRead16)\r
306 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
307 // do actual copy\r
c7a4ff64 308 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
b3818d1e 309 }\r
310 else if (!(emu_opt&0x80))\r
311 {\r
720ee7f6 312 // 8bit accurate renderer\r
313 if (Pico.m.dirtyPal) {\r
314 Pico.m.dirtyPal = 0;\r
315 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
316 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
317 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
318 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
319 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
daf91588 320 localPal[0xc0] = 0x0000c000;\r
321 localPal[0xd0] = 0x00c00000;\r
720ee7f6 322 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
323 localPal[0xf0] = 0x00ffffff;\r
324 gp2x_video_setpalette(localPal, 0x100);\r
325 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
326 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
327 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
328 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
329 gp2x_video_setpalette(localPal, 0xc0);\r
330 } else {\r
331 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
332 gp2x_video_setpalette(localPal, 0x40);\r
333 }\r
334 }\r
335 }\r
336\r
79cad122 337 if (notice || (emu_opt & 2)) {\r
338 int h = 232;\r
339 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
340 if (notice) osd_text(4, h, notice);\r
341 if (emu_opt & 2)\r
342 osd_text(osd_fps_x, h, fps);\r
343 }\r
daf91588 344 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
345 cd_leds();\r
720ee7f6 346\r
347 //gp2x_video_wait_vsync();\r
348 gp2x_video_flip();\r
349\r
350 if (!(PicoOpt&0x10)) {\r
351 if (!(Pico.video.reg[1]&8)) {\r
352 if (currentConfig.EmuOpt&0x80) {\r
353 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
354 } else {\r
355 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
356 }\r
357 } else {\r
358 DrawLineDest = gp2x_screen;\r
359 }\r
360 }\r
361}\r
362\r
363\r
364// clears whole screen or just the notice area (in all buffers)\r
365static void clearArea(int full)\r
366{\r
daf91588 367 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
368 // 8-bit renderers\r
369 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
370 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
371 } else {\r
720ee7f6 372 // 16bit accurate renderer\r
373 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
374 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 375 }\r
376}\r
377\r
378\r
379static void vidResetMode(void)\r
380{\r
381 if (PicoOpt&0x10) {\r
720ee7f6 382 gp2x_video_changemode(8);\r
720ee7f6 383 } else if (currentConfig.EmuOpt&0x80) {\r
13059a60 384 gp2x_video_changemode(16);\r
720ee7f6 385 PicoDrawSetColorFormat(1);\r
386 PicoScan = EmuScan16;\r
387 PicoScan(0, 0);\r
388 } else {\r
daf91588 389 gp2x_video_changemode(8);\r
390 PicoDrawSetColorFormat(2);\r
391 PicoScan = EmuScan8;\r
392 PicoScan(0, 0);\r
393 }\r
394 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
395 // setup pal for 8-bit modes\r
396 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
397 localPal[0xd0] = 0x00c00000;\r
720ee7f6 398 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
399 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 400 gp2x_video_setpalette(localPal, 0x100);\r
401 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
402 gp2x_video_flip();\r
720ee7f6 403 }\r
404 Pico.m.dirtyPal = 1;\r
405 // reset scaling\r
79cad122 406 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
407 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
408 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
720ee7f6 409}\r
410\r
411\r
dfa4c846 412static void emu_msg_cb(const char *msg)\r
413{\r
414 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
415 // 8-bit renderers\r
416 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
417 osd_text(4, 232, msg);\r
418 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
419 } else {\r
420 // 16bit accurate renderer\r
421 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
422 osd_text(4, 232, msg);\r
423 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
424 }\r
425 gettimeofday(&noticeMsgTime, 0);\r
426 noticeMsgTime.tv_sec -= 2;\r
e5589947 427\r
428 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
429 reset_timing = 1;\r
dfa4c846 430}\r
431\r
1078e544 432static void emu_state_cb(const char *str)\r
433{\r
434 clearArea(0);\r
435 blit("", str);\r
436}\r
437\r
5e2e14f2 438static void emu_msg_tray_open(void)\r
439{\r
440 strcpy(noticeMsg, "CD tray opened");\r
441 gettimeofday(&noticeMsgTime, 0);\r
442}\r
443\r
0480e6c9 444static void update_volume(int has_changed, int is_up)\r
445{\r
446 static int prev_frame = 0, wait_frames = 0;\r
447 int vol = currentConfig.volume;\r
448\r
449 if (has_changed)\r
450 {\r
451 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
452 wait_frames++;\r
453 else {\r
454 if (is_up) {\r
455 if (vol < 99) vol++;\r
456 } else {\r
457 if (vol > 0) vol--;\r
458 }\r
459 wait_frames = 0;\r
460 gp2x_sound_volume(vol, vol);\r
461 currentConfig.volume = vol;\r
462 }\r
463 sprintf(noticeMsg, "VOL: %02i", vol);\r
464 gettimeofday(&noticeMsgTime, 0);\r
465 prev_frame = Pico.m.frame_count;\r
466 }\r
467\r
468 // set the right mixer func\r
469 if (!(PicoOpt&8)) return; // just use defaults for mono\r
470 if (vol >= 5)\r
471 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
472 else {\r
473 mix_32_to_16l_level = 5 - vol;\r
474 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
475 }\r
476}\r
477\r
478static void change_fast_forward(int set_on)\r
479{\r
480 static void *set_PsndOut = NULL;\r
481 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
482\r
483 if (set_on && !is_on) {\r
484 set_PsndOut = PsndOut;\r
485 set_Frameskip = currentConfig.Frameskip;\r
486 set_EmuOpt = currentConfig.EmuOpt;\r
487 PsndOut = NULL;\r
488 currentConfig.Frameskip = 8;\r
489 currentConfig.EmuOpt &= ~4;\r
490 is_on = 1;\r
491 }\r
492 else if (!set_on && is_on) {\r
493 PsndOut = set_PsndOut;\r
494 currentConfig.Frameskip = set_Frameskip;\r
495 currentConfig.EmuOpt = set_EmuOpt;\r
496 PsndRerate(1);\r
497 update_volume(0, 0);\r
498 reset_timing = 1;\r
499 is_on = 0;\r
500 }\r
501}\r
502\r
720ee7f6 503static void RunEvents(unsigned int which)\r
504{\r
0480e6c9 505 if (which & 0x1800) // save or load (but not both)\r
506 {\r
720ee7f6 507 int do_it = 1;\r
f013066e 508 if ( emu_checkSaveFile(state_slot) &&\r
46ede6a6 509 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
510 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
720ee7f6 511 unsigned long keys;\r
46ede6a6 512 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
720ee7f6 513 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
514 usleep(50*1024);\r
515 if (keys & GP2X_X) do_it = 0;\r
516 clearArea(0);\r
517 }\r
518 if (do_it) {\r
0805b5b4 519 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
1078e544 520 PicoStateProgressCB = emu_state_cb;\r
521 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
0805b5b4 522 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
1078e544 523 PicoStateProgressCB = NULL;\r
720ee7f6 524 }\r
525\r
526 reset_timing = 1;\r
527 }\r
0480e6c9 528 if (which & 0x0400) // switch renderer\r
529 {\r
720ee7f6 530 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
531 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
532 else currentConfig.EmuOpt &= ~0x80;\r
533\r
534 vidResetMode();\r
535\r
536 if (PicoOpt&0x10) {\r
537 strcpy(noticeMsg, " 8bit fast renderer");\r
538 } else if (currentConfig.EmuOpt&0x80) {\r
539 strcpy(noticeMsg, "16bit accurate renderer");\r
540 } else {\r
541 strcpy(noticeMsg, " 8bit accurate renderer");\r
542 }\r
543\r
544 gettimeofday(&noticeMsgTime, 0);\r
545 }\r
0480e6c9 546 if (which & 0x0300)\r
547 {\r
720ee7f6 548 if(which&0x0200) {\r
549 state_slot -= 1;\r
550 if(state_slot < 0) state_slot = 9;\r
551 } else {\r
552 state_slot += 1;\r
553 if(state_slot > 9) state_slot = 0;\r
554 }\r
f013066e 555 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
720ee7f6 556 gettimeofday(&noticeMsgTime, 0);\r
557 }\r
0480e6c9 558 if (which & 0x0080) {\r
720ee7f6 559 engineState = PGS_Menu;\r
560 }\r
561}\r
562\r
563\r
564static void updateKeys(void)\r
565{\r
566 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
567 static unsigned long prevEvents = 0;\r
568 int joy, i;\r
569\r
570 keys = gp2x_joystick_read(0);\r
571 if (keys & GP2X_SELECT) {\r
572 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
573 // wait until select is released, so menu would not resume game\r
574 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
575 }\r
576\r
577 keys &= CONFIGURABLE_KEYS;\r
578\r
579 for (i = 0; i < 32; i++)\r
580 {\r
581 if (keys & (1 << i)) {\r
582 int pl, acts = currentConfig.KeyBinds[i];\r
583 if (!acts) continue;\r
584 pl = (acts >> 16) & 1;\r
585 if (combo_keys & (1 << i)) {\r
586 int u = i+1, acts_c = acts & combo_acts;\r
587 // let's try to find the other one\r
588 if (acts_c)\r
589 for (; u < 32; u++)\r
590 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
591 allActions[pl] |= acts_c;\r
592 keys &= ~((1 << i) | (1 << u));\r
593 break;\r
594 }\r
595 // add non-combo actions if combo ones were not found\r
596 if (!acts_c || u == 32)\r
597 allActions[pl] |= acts & ~combo_acts;\r
598 } else {\r
599 allActions[pl] |= acts;\r
600 }\r
601 }\r
602 }\r
603\r
604 // add joy inputs\r
605 if (num_of_joys > 0)\r
606 {\r
607 gp2x_usbjoy_update();\r
608 for (joy = 0; joy < num_of_joys; joy++) {\r
609 int keys = gp2x_usbjoy_check2(joy);\r
610 for (i = 0; i < 32; i++) {\r
611 if (keys & (1 << i)) {\r
612 int acts = currentConfig.JoyBinds[joy][i];\r
613 int pl = (acts >> 16) & 1;\r
614 allActions[pl] |= acts;\r
615 }\r
616 }\r
617 }\r
618 }\r
619\r
25fced50 620 PicoPad[0] = (unsigned short) allActions[0];\r
621 PicoPad[1] = (unsigned short) allActions[1];\r
720ee7f6 622\r
623 events = (allActions[0] | allActions[1]) >> 16;\r
624\r
625 // volume is treated in special way and triggered every frame\r
0480e6c9 626 if (events & 0x6000)\r
627 update_volume(1, events & 0x2000);\r
628\r
629 if ((events ^ prevEvents) & 0x40)\r
630 change_fast_forward(events & 0x40);\r
720ee7f6 631\r
632 events &= ~prevEvents;\r
633 if (events) RunEvents(events);\r
f013066e 634 if (movie_data) emu_updateMovie();\r
720ee7f6 635\r
636 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
637}\r
638\r
720ee7f6 639\r
3ef975c9 640static void updateSound(int len)\r
720ee7f6 641{\r
3ef975c9 642 if (PicoOpt&8) len<<=1;\r
720ee7f6 643\r
d9a18943 644 /* avoid writing audio when lagging behind to prevent audio lag */\r
645 if (PicoSkipFrame != 2)\r
646 gp2x_sound_write(PsndOut, len<<1);\r
720ee7f6 647}\r
648\r
649\r
d9a18943 650static void SkipFrame(int do_audio)\r
720ee7f6 651{\r
d9a18943 652 PicoSkipFrame=do_audio ? 1 : 2;\r
720ee7f6 653 PicoFrame();\r
654 PicoSkipFrame=0;\r
720ee7f6 655}\r
656\r
657\r
f013066e 658void emu_forcedFrame(void)\r
4ffd2858 659{\r
660 int po_old = PicoOpt;\r
13059a60 661 int eo_old = currentConfig.EmuOpt;\r
662\r
663 PicoOpt &= ~0x0010;\r
664 PicoOpt |= 0x4080; // soft_scale | acc_sprites\r
665 currentConfig.EmuOpt |= 0x80;\r
4ffd2858 666\r
13059a60 667 //vidResetMode();\r
668 PicoDrawSetColorFormat(1);\r
669 PicoScan = EmuScan16;\r
670 PicoScan(0, 0);\r
671 Pico.m.dirtyPal = 1;\r
672 PicoFrameDrawOnly();\r
4ffd2858 673\r
13059a60 674/*\r
4ffd2858 675 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 676 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 677 clearArea(1);\r
dccc2bd0 678 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 679\r
c7a4ff64 680 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
4ffd2858 681 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
682 gp2x_video_setpalette(localPal, 0x40);\r
13059a60 683*/\r
e1aa0fa7 684 PicoOpt = po_old;\r
13059a60 685 currentConfig.EmuOpt = eo_old;\r
4ffd2858 686}\r
687\r
720ee7f6 688static void simpleWait(int thissec, int lim_time)\r
689{\r
690 struct timeval tval;\r
691\r
692 spend_cycles(1024);\r
693 gettimeofday(&tval, 0);\r
694 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
695\r
696 while(tval.tv_usec < lim_time)\r
697 {\r
698 spend_cycles(1024);\r
699 gettimeofday(&tval, 0);\r
700 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
701 }\r
702}\r
703\r
704\r
705void emu_Loop(void)\r
706{\r
707 static int gp2x_old_clock = 200;\r
65345ecc 708 static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;\r
720ee7f6 709 char fpsbuff[24]; // fps count c string\r
710 struct timeval tval; // timing\r
711 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
59d0f042 712 int target_fps, target_frametime, lim_time, vsync_offset, i;\r
720ee7f6 713 char *notice = 0;\r
714\r
715 printf("entered emu_Loop()\n");\r
716\r
717 if (gp2x_old_clock != currentConfig.CPUclock) {\r
718 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
719 set_FCLK(currentConfig.CPUclock);\r
720 gp2x_old_clock = currentConfig.CPUclock;\r
721 printf(" done\n");\r
722 }\r
723\r
55a951dd 724 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
725 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 726 gp2x_old_gamma = currentConfig.gamma;\r
55a951dd 727 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 728 }\r
729\r
59d0f042 730 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
731 if (currentConfig.EmuOpt&0x2000)\r
732 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
733 else unset_LCD_custom_rate();\r
734 }\r
735\r
736 EmuOpt_old = currentConfig.EmuOpt;\r
720ee7f6 737 fpsbuff[0] = 0;\r
738\r
739 // make sure we are in correct mode\r
740 vidResetMode();\r
f013066e 741 scaling_update();\r
e5d315a5 742 Pico.m.dirtyPal = 1;\r
720ee7f6 743 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
744 find_combos();\r
745\r
746 // pal/ntsc might have changed, reset related stuff\r
747 target_fps = Pico.m.pal ? 50 : 60;\r
748 target_frametime = 1000000/target_fps;\r
749 reset_timing = 1;\r
750\r
751 // prepare sound stuff\r
0480e6c9 752 if (currentConfig.EmuOpt & 4)\r
753 {\r
3ef975c9 754 int snd_excess_add;\r
4327ec37 755 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
756 ((PicoOpt&0x200) && crashed_940)) {\r
c4f2f371 757 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
720ee7f6 758 }\r
720ee7f6 759 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
4327ec37 760 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
761 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
720ee7f6 762 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
763 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
764 PicoWriteSound = updateSound;\r
0480e6c9 765 update_volume(0, 0);\r
3ef975c9 766 memset(sndBuffer, 0, sizeof(sndBuffer));\r
767 PsndOut = sndBuffer;\r
720ee7f6 768 PsndRate_old = PsndRate;\r
720ee7f6 769 PicoOpt_old = PicoOpt;\r
770 pal_old = Pico.m.pal;\r
771 } else {\r
0480e6c9 772 PsndOut = NULL;\r
720ee7f6 773 }\r
774\r
5f9922e6 775 // prepare CD buffer\r
776 if (PicoMCD & 1) PicoCDBufferInit();\r
777\r
59d0f042 778 // calc vsync offset to sync timing code with vsync\r
779 if (currentConfig.EmuOpt&0x2000) {\r
780 gettimeofday(&tval, 0);\r
781 gp2x_video_wait_vsync();\r
782 gettimeofday(&tval, 0);\r
783 vsync_offset = tval.tv_usec;\r
784 while (vsync_offset >= target_frametime)\r
785 vsync_offset -= target_frametime;\r
786 if (!vsync_offset) vsync_offset++;\r
787 printf("vsync_offset: %i\n", vsync_offset);\r
788 } else\r
789 vsync_offset = 0;\r
790\r
720ee7f6 791 // loop?\r
792 while (engineState == PGS_Running)\r
793 {\r
794 int modes;\r
795\r
796 gettimeofday(&tval, 0);\r
0480e6c9 797 if (reset_timing) {\r
720ee7f6 798 reset_timing = 0;\r
799 thissec = tval.tv_sec;\r
800 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
801 }\r
802\r
803 // show notice message?\r
0480e6c9 804 if (noticeMsgTime.tv_sec)\r
805 {\r
720ee7f6 806 static int noticeMsgSum;\r
807 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
808 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
809 clearArea(0);\r
810 notice = 0;\r
811 } else {\r
812 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
813 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
814 notice = noticeMsg;\r
815 }\r
816 }\r
817\r
818 // check for mode changes\r
819 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
0480e6c9 820 if (modes != oldmodes)\r
821 {\r
720ee7f6 822 int scalex = 320;\r
823 osd_fps_x = OSD_FPS_X;\r
824 if (modes & 4) {\r
825 vidCpyM2 = vidCpyM2_40col;\r
826 } else {\r
827 if (PicoOpt & 0x100) {\r
828 vidCpyM2 = vidCpyM2_32col_nobord;\r
829 scalex = 256;\r
830 osd_fps_x = OSD_FPS_X - 64;\r
831 } else {\r
832 vidCpyM2 = vidCpyM2_32col;\r
833 }\r
834 }\r
79cad122 835 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
836 gp2x_video_RGB_setscaling(8, scalex, 224);\r
837 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
720ee7f6 838 oldmodes = modes;\r
839 clearArea(1);\r
840 }\r
841\r
842 // second changed?\r
0480e6c9 843 if (thissec != tval.tv_sec)\r
844 {\r
720ee7f6 845#ifdef BENCHMARK\r
846 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
0480e6c9 847 if (++bench == 10) {\r
720ee7f6 848 bench = 0;\r
849 bench_fps_s = bench_fps;\r
850 bf[bfp++ & 3] = bench_fps;\r
851 bench_fps = 0;\r
852 }\r
853 bench_fps += frames_shown;\r
854 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
855#else\r
0480e6c9 856 if (currentConfig.EmuOpt & 2)\r
720ee7f6 857 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
0480e6c9 858 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
720ee7f6 859#endif\r
860 thissec = tval.tv_sec;\r
861\r
0480e6c9 862 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
720ee7f6 863 frames_done = frames_shown = 0;\r
864 } else {\r
865 // it is quite common for this implementation to leave 1 fame unfinished\r
866 // when second changes, but we don't want buffer to starve.\r
867 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
868 updateKeys();\r
d9a18943 869 SkipFrame(1); frames_done++;\r
720ee7f6 870 }\r
871\r
872 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
873 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
874 if (frames_shown > frames_done) frames_shown = frames_done;\r
875 }\r
876 }\r
4327ec37 877#ifdef PFRAMES\r
878 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
879#endif\r
59d0f042 880\r
881 lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
720ee7f6 882 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
883 for(i = 0; i < currentConfig.Frameskip; i++) {\r
884 updateKeys();\r
d9a18943 885 SkipFrame(1); frames_done++;\r
0480e6c9 886 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
720ee7f6 887 gettimeofday(&tval, 0);\r
888 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
889 if(tval.tv_usec < lim_time) { // we are too fast\r
890 simpleWait(thissec, lim_time);\r
891 }\r
892 }\r
893 lim_time += target_frametime;\r
894 }\r
895 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
896 // no time left for this frame - skip\r
f013066e 897 if (tval.tv_usec - lim_time >= 300000) {\r
d032c15a 898 /* something caused a slowdown for us (disk access? cache flush?)\r
899 * try to recover by resetting timing... */\r
900 reset_timing = 1;\r
901 continue;\r
902 }\r
720ee7f6 903 updateKeys();\r
8f1b51ef 904 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
720ee7f6 905 continue;\r
906 }\r
907\r
908 updateKeys();\r
909 PicoFrame();\r
910\r
47f22a1f 911#if 0\r
912if (Pico.m.frame_count == 31563) {\r
913 FILE *f;\r
914 f = fopen("ram_p.bin", "wb");\r
915 if (!f) { printf("!f\n"); exit(1); }\r
916 fwrite(Pico.ram, 1, 0x10000, f);\r
917 fclose(f);\r
918 exit(0);\r
919}\r
920#endif\r
1a20dbc8 921#if 0\r
922 // debug\r
923 {\r
47f22a1f 924 #define BYTE unsigned char\r
925 #define WORD unsigned short\r
926 struct\r
927 {\r
928 BYTE IDLength; /* 00h Size of Image ID field */\r
929 BYTE ColorMapType; /* 01h Color map type */\r
930 BYTE ImageType; /* 02h Image type code */\r
931 WORD CMapStart; /* 03h Color map origin */\r
932 WORD CMapLength; /* 05h Color map length */\r
933 BYTE CMapDepth; /* 07h Depth of color map entries */\r
934 WORD XOffset; /* 08h X origin of image */\r
935 WORD YOffset; /* 0Ah Y origin of image */\r
936 WORD Width; /* 0Ch Width of image */\r
937 WORD Height; /* 0Eh Height of image */\r
938 BYTE PixelDepth; /* 10h Image pixel size */\r
939 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
940 } __attribute__((packed)) TGAHEAD;\r
941 static unsigned short oldscr[320*240];\r
1a20dbc8 942 FILE *f; char name[128]; int i;\r
47f22a1f 943\r
944 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
945 TGAHEAD.ImageType = 2;\r
946 TGAHEAD.Width = 320;\r
947 TGAHEAD.Height = 240;\r
948 TGAHEAD.PixelDepth = 16;\r
949 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
950\r
951 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
952\r
953 for (i = 0; i < 320*240; i++)\r
954 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
955 if (i < 320*240)\r
1a20dbc8 956 {\r
47f22a1f 957 for (i = 0; i < 320*240; i++)\r
958 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
959 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
1a20dbc8 960 f = fopen(name, "wb");\r
961 if (!f) { printf("!f\n"); exit(1); }\r
47f22a1f 962 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
963 fwrite(oldscr, 1, 320*240*2, f);\r
1a20dbc8 964 fclose(f);\r
965 }\r
966 }\r
967#endif\r
968\r
720ee7f6 969 // check time\r
970 gettimeofday(&tval, 0);\r
d032c15a 971 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 972\r
f013066e 973 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
d032c15a 974 reset_timing = 1;\r
975 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 976 {\r
59d0f042 977 // sleep or vsync if we are still too fast\r
720ee7f6 978 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
0480e6c9 979 if (!reset_timing && tval.tv_usec < lim_time)\r
720ee7f6 980 {\r
981 // we are too fast\r
59d0f042 982 if (vsync_offset) {\r
983 if (lim_time - tval.tv_usec > target_frametime/2)\r
984 simpleWait(thissec, lim_time - target_frametime/4);\r
985 gp2x_video_wait_vsync();\r
986 } else {\r
987 simpleWait(thissec, lim_time);\r
988 }\r
720ee7f6 989 }\r
990 }\r
991\r
992 blit(fpsbuff, notice);\r
993\r
994 frames_done++; frames_shown++;\r
995 }\r
996\r
0480e6c9 997 change_fast_forward(0);\r
5f9922e6 998\r
999 if (PicoMCD & 1) PicoCDBufferFree();\r
1000\r
720ee7f6 1001 // save SRAM\r
1002 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
6ab2f79c 1003 emu_state_cb("Writing SRAM/BRAM..");\r
720ee7f6 1004 emu_SaveLoadGame(0, 1);\r
1005 SRam.changed = 0;\r
1006 }\r
e5d315a5 1007\r
13059a60 1008 // if in 8bit mode, generate 16bit image for menu background\r
1009 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
f013066e 1010 emu_forcedFrame();\r
720ee7f6 1011}\r
1012\r
1013\r
1014void emu_ResetGame(void)\r
1015{\r
1016 PicoReset(0);\r
1017 reset_timing = 1;\r
1018}\r
1019\r
1020\r
PicoDrive's frontend in a lib