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experimental thread I/O code, fps counter fix
[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
da310283 14#include <sched.h>\r
cc68a136 15\r
16#include <stdarg.h>\r
17\r
18#include "emu.h"\r
19#include "gp2x.h"\r
20#include "usbjoy.h"\r
21#include "menu.h"\r
e5f426aa 22#include "../common/arm_utils.h"\r
23#include "../common/fonts.h"\r
ea8c405f 24#include "../common/emu.h"\r
58c86d00 25#include "../common/config.h"\r
cc68a136 26#include "cpuctrl.h"\r
27\r
b67ef287 28#include <Pico/PicoInt.h>\r
29#include <Pico/Patch.h>\r
4a32f01f 30#include <Pico/sound/mix.h>\r
b67ef287 31#include <zlib/zlib.h>\r
cc68a136 32\r
1dceadae 33//#define PFRAMES\r
cc68a136 34\r
35#ifdef BENCHMARK\r
36#define OSD_FPS_X 220\r
37#else\r
38#define OSD_FPS_X 260\r
39#endif\r
40\r
cc68a136 41\r
42int engineState;\r
43int select_exits = 0;\r
cc68a136 44\r
45char romFileName[PATH_MAX];\r
cc68a136 46\r
47extern int crashed_940;\r
48\r
ca61ee42 49static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
cc68a136 50static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
00bd648e 51static int osd_fps_x;\r
cc68a136 52static int gp2x_old_gamma = 100;\r
ea8c405f 53char noticeMsg[64]; // notice msg to draw\r
e5f426aa 54unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
00bd648e 55int reset_timing = 0;\r
cc68a136 56\r
ea8c405f 57static void emu_msg_cb(const char *msg);\r
58static void emu_msg_tray_open(void);\r
cc68a136 59\r
cc68a136 60\r
ea8c405f 61void emu_noticeMsgUpdated(void)\r
cc68a136 62{\r
ea8c405f 63 gettimeofday(&noticeMsgTime, 0);\r
cc68a136 64}\r
65\r
ea8c405f 66void emu_getMainDir(char *dst, int len)\r
8c1952f0 67{\r
ea8c405f 68 extern char **g_argv;\r
69 int j;\r
8c1952f0 70\r
ea8c405f 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
8c1952f0 77}\r
78\r
cc68a136 79void emu_Init(void)\r
80{\r
81 // make temp buffer for alt renderer\r
e5f426aa 82 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
83 if (!PicoDraw2FB)\r
cc68a136 84 {\r
e5f426aa 85 printf("PicoDraw2FB == 0\n");\r
cc68a136 86 }\r
87\r
860c6322 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
cc68a136 94 PicoInit();\r
66fdc0f0 95 PicoMessage = emu_msg_cb;\r
721cd396 96 PicoMCDopenTray = emu_msg_tray_open;\r
97 PicoMCDcloseTray = menu_loop_tray;\r
cc68a136 98}\r
99\r
100\r
ea8c405f 101static void scaling_update(void)\r
2433f409 102{\r
103 PicoOpt &= ~0x4100;\r
104 switch (currentConfig.scaling) {\r
105 default: break; // off\r
106 case 1: // hw hor\r
107 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
108 case 3: PicoOpt |= 0x4000; break; // sw hor\r
109 }\r
110}\r
111\r
112\r
cc68a136 113void emu_Deinit(void)\r
114{\r
115 // save SRAM\r
116 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
117 emu_SaveLoadGame(0, 1);\r
118 SRam.changed = 0;\r
119 }\r
120\r
2433f409 121 if (!(currentConfig.EmuOpt & 0x20)) {\r
58c86d00 122 config_writelrom(PicoConfigFile);\r
2433f409 123#ifndef NO_SYNC\r
58c86d00 124 sync();\r
2433f409 125#endif\r
2433f409 126 }\r
127\r
e5f426aa 128 free(PicoDraw2FB);\r
cc68a136 129\r
130 PicoExit();\r
cc68a136 131\r
132 // restore gamma\r
133 if (gp2x_old_gamma != 100)\r
82bc9cdd 134 set_gamma(100, 0);\r
cc68a136 135}\r
136\r
58c86d00 137void emu_prepareDefaultConfig(void)\r
138{\r
139 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
1ca2ea4f 140 defaultConfig.EmuOpt = 0x1d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds\r
141 defaultConfig.s_PicoOpt = 0x0f | 0x20e00; // | <- use_940, cd_pcm, cd_cdda, svp drc\r
58c86d00 142 defaultConfig.s_PsndRate = 44100;\r
143 defaultConfig.s_PicoRegion = 0; // auto\r
144 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
145 defaultConfig.s_PicoCDBuffers = 64;\r
146 defaultConfig.Frameskip = -1; // auto\r
147 defaultConfig.CPUclock = 200;\r
148 defaultConfig.volume = 50;\r
149 defaultConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
150 defaultConfig.KeyBinds[ 4] = 1<<1;\r
151 defaultConfig.KeyBinds[ 2] = 1<<2;\r
152 defaultConfig.KeyBinds[ 6] = 1<<3;\r
153 defaultConfig.KeyBinds[14] = 1<<4;\r
154 defaultConfig.KeyBinds[13] = 1<<5;\r
155 defaultConfig.KeyBinds[12] = 1<<6;\r
156 defaultConfig.KeyBinds[ 8] = 1<<7;\r
157 defaultConfig.KeyBinds[15] = 1<<26; // switch rend\r
158 defaultConfig.KeyBinds[10] = 1<<27; // save state\r
159 defaultConfig.KeyBinds[11] = 1<<28; // load state\r
160 defaultConfig.KeyBinds[23] = 1<<29; // vol up\r
161 defaultConfig.KeyBinds[22] = 1<<30; // vol down\r
162 defaultConfig.gamma = 100;\r
163 defaultConfig.scaling = 0;\r
164}\r
165\r
ea8c405f 166void emu_setDefaultConfig(void)\r
167{\r
58c86d00 168 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
169 PicoOpt = currentConfig.s_PicoOpt;\r
170 PsndRate = currentConfig.s_PsndRate;\r
171 PicoRegionOverride = currentConfig.s_PicoRegion;\r
172 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
173 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
a12e0116 174}\r
175\r
76276b0b 176void osd_text(int x, int y, const char *text)\r
cc68a136 177{\r
178 int len = strlen(text)*8;\r
179\r
180 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
bf098bc5 181 int *p, i, h;\r
cc68a136 182 x &= ~3; // align x\r
183 len = (len+3) >> 2;\r
184 for (h = 0; h < 8; h++) {\r
185 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
bf098bc5 186 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
cc68a136 187 }\r
ea8c405f 188 emu_textOut8(x, y, text);\r
cc68a136 189 } else {\r
190 int *p, i, h;\r
191 x &= ~1; // align x\r
192 len = (len+1) >> 1;\r
193 for (h = 0; h < 8; h++) {\r
194 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
195 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
196 }\r
ea8c405f 197 emu_textOut16(x, y, text);\r
cc68a136 198 }\r
199}\r
200\r
bf098bc5 201static void cd_leds(void)\r
202{\r
b837b69b 203// static\r
204 int old_reg;\r
9839d126 205// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
bf098bc5 206 old_reg = Pico_mcd->s68k_regs[0];\r
207\r
208 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
209 // 8-bit modes\r
210 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
211 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
4f265db7 212 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
213 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
214 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
215 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
216 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
217 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
bf098bc5 218 } else {\r
219 // 16-bit modes\r
4f265db7 220 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
bf098bc5 221 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
222 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
4f265db7 223 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
224 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
9839d126 225 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
bf098bc5 226 }\r
227}\r
228\r
cc68a136 229static int EmuScan16(unsigned int num, void *sdata)\r
230{\r
231 if (!(Pico.video.reg[1]&8)) num += 8;\r
232 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
233\r
234 return 0;\r
235}\r
236\r
237static int EmuScan8(unsigned int num, void *sdata)\r
238{\r
239 if (!(Pico.video.reg[1]&8)) num += 8;\r
240 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
241\r
242 return 0;\r
243}\r
244\r
e11c5548 245int localPal[0x100];\r
cc68a136 246static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
247\r
76276b0b 248static void blit(const char *fps, const char *notice)\r
cc68a136 249{\r
bf098bc5 250 int emu_opt = currentConfig.EmuOpt;\r
251\r
fad24893 252 if (PicoOpt&0x10)\r
253 {\r
cc68a136 254 // 8bit fast renderer\r
255 if (Pico.m.dirtyPal) {\r
256 Pico.m.dirtyPal = 0;\r
257 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
258 // feed new palette to our device\r
259 gp2x_video_setpalette(localPal, 0x40);\r
260 }\r
fad24893 261 // a hack for VR\r
262 if (PicoRead16Hook == PicoSVPRead16)\r
263 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
264 // do actual copy\r
e5f426aa 265 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
fad24893 266 }\r
267 else if (!(emu_opt&0x80))\r
268 {\r
cc68a136 269 // 8bit accurate renderer\r
270 if (Pico.m.dirtyPal) {\r
271 Pico.m.dirtyPal = 0;\r
272 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
273 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
274 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
275 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
7b802576 276 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
bf098bc5 277 localPal[0xc0] = 0x0000c000;\r
278 localPal[0xd0] = 0x00c00000;\r
cc68a136 279 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
280 localPal[0xf0] = 0x00ffffff;\r
281 gp2x_video_setpalette(localPal, 0x100);\r
282 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
283 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
284 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
285 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
286 gp2x_video_setpalette(localPal, 0xc0);\r
287 } else {\r
288 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
289 gp2x_video_setpalette(localPal, 0x40);\r
290 }\r
291 }\r
292 }\r
293\r
2433f409 294 if (notice || (emu_opt & 2)) {\r
295 int h = 232;\r
296 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
297 if (notice) osd_text(4, h, notice);\r
298 if (emu_opt & 2)\r
299 osd_text(osd_fps_x, h, fps);\r
300 }\r
bf098bc5 301 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
302 cd_leds();\r
cc68a136 303\r
304 //gp2x_video_wait_vsync();\r
305 gp2x_video_flip();\r
306\r
307 if (!(PicoOpt&0x10)) {\r
308 if (!(Pico.video.reg[1]&8)) {\r
309 if (currentConfig.EmuOpt&0x80) {\r
310 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
311 } else {\r
312 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
313 }\r
314 } else {\r
315 DrawLineDest = gp2x_screen;\r
316 }\r
317 }\r
318}\r
319\r
320\r
321// clears whole screen or just the notice area (in all buffers)\r
322static void clearArea(int full)\r
323{\r
bf098bc5 324 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
325 // 8-bit renderers\r
326 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
327 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
328 } else {\r
cc68a136 329 // 16bit accurate renderer\r
330 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
331 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
cc68a136 332 }\r
333}\r
334\r
335\r
336static void vidResetMode(void)\r
337{\r
338 if (PicoOpt&0x10) {\r
cc68a136 339 gp2x_video_changemode(8);\r
cc68a136 340 } else if (currentConfig.EmuOpt&0x80) {\r
a12e0116 341 gp2x_video_changemode(16);\r
cc68a136 342 PicoDrawSetColorFormat(1);\r
343 PicoScan = EmuScan16;\r
344 PicoScan(0, 0);\r
345 } else {\r
bf098bc5 346 gp2x_video_changemode(8);\r
347 PicoDrawSetColorFormat(2);\r
348 PicoScan = EmuScan8;\r
349 PicoScan(0, 0);\r
350 }\r
351 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
352 // setup pal for 8-bit modes\r
353 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
354 localPal[0xd0] = 0x00c00000;\r
cc68a136 355 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
356 localPal[0xf0] = 0x00ffffff;\r
cc68a136 357 gp2x_video_setpalette(localPal, 0x100);\r
358 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
359 gp2x_video_flip();\r
cc68a136 360 }\r
361 Pico.m.dirtyPal = 1;\r
362 // reset scaling\r
2433f409 363 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
364 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
365 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
cc68a136 366}\r
367\r
368\r
66fdc0f0 369static void emu_msg_cb(const char *msg)\r
370{\r
371 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
372 // 8-bit renderers\r
373 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
374 osd_text(4, 232, msg);\r
375 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
376 } else {\r
377 // 16bit accurate renderer\r
378 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
379 osd_text(4, 232, msg);\r
380 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
381 }\r
382 gettimeofday(&noticeMsgTime, 0);\r
383 noticeMsgTime.tv_sec -= 2;\r
7a1f6e45 384\r
385 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
386 reset_timing = 1;\r
66fdc0f0 387}\r
388\r
fa1e5e29 389static void emu_state_cb(const char *str)\r
390{\r
391 clearArea(0);\r
392 blit("", str);\r
393}\r
394\r
721cd396 395static void emu_msg_tray_open(void)\r
396{\r
397 strcpy(noticeMsg, "CD tray opened");\r
398 gettimeofday(&noticeMsgTime, 0);\r
399}\r
400\r
4a32f01f 401static void update_volume(int has_changed, int is_up)\r
402{\r
403 static int prev_frame = 0, wait_frames = 0;\r
404 int vol = currentConfig.volume;\r
405\r
406 if (has_changed)\r
407 {\r
408 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
409 wait_frames++;\r
410 else {\r
411 if (is_up) {\r
412 if (vol < 99) vol++;\r
413 } else {\r
414 if (vol > 0) vol--;\r
415 }\r
416 wait_frames = 0;\r
417 gp2x_sound_volume(vol, vol);\r
418 currentConfig.volume = vol;\r
419 }\r
420 sprintf(noticeMsg, "VOL: %02i", vol);\r
421 gettimeofday(&noticeMsgTime, 0);\r
422 prev_frame = Pico.m.frame_count;\r
423 }\r
424\r
425 // set the right mixer func\r
426 if (!(PicoOpt&8)) return; // just use defaults for mono\r
427 if (vol >= 5)\r
428 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
429 else {\r
430 mix_32_to_16l_level = 5 - vol;\r
431 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
432 }\r
433}\r
434\r
435static void change_fast_forward(int set_on)\r
436{\r
437 static void *set_PsndOut = NULL;\r
438 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
439\r
440 if (set_on && !is_on) {\r
441 set_PsndOut = PsndOut;\r
442 set_Frameskip = currentConfig.Frameskip;\r
443 set_EmuOpt = currentConfig.EmuOpt;\r
444 PsndOut = NULL;\r
445 currentConfig.Frameskip = 8;\r
446 currentConfig.EmuOpt &= ~4;\r
447 is_on = 1;\r
448 }\r
449 else if (!set_on && is_on) {\r
450 PsndOut = set_PsndOut;\r
451 currentConfig.Frameskip = set_Frameskip;\r
452 currentConfig.EmuOpt = set_EmuOpt;\r
453 PsndRerate(1);\r
454 update_volume(0, 0);\r
455 reset_timing = 1;\r
456 is_on = 0;\r
457 }\r
458}\r
459\r
cc68a136 460static void RunEvents(unsigned int which)\r
461{\r
4a32f01f 462 if (which & 0x1800) // save or load (but not both)\r
463 {\r
cc68a136 464 int do_it = 1;\r
ea8c405f 465 if ( emu_checkSaveFile(state_slot) &&\r
46969540 466 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
467 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
cc68a136 468 unsigned long keys;\r
46969540 469 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
cc68a136 470 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
471 usleep(50*1024);\r
472 if (keys & GP2X_X) do_it = 0;\r
473 clearArea(0);\r
474 }\r
475 if (do_it) {\r
76276b0b 476 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
fa1e5e29 477 PicoStateProgressCB = emu_state_cb;\r
478 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
76276b0b 479 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
fa1e5e29 480 PicoStateProgressCB = NULL;\r
cc68a136 481 }\r
482\r
483 reset_timing = 1;\r
484 }\r
4a32f01f 485 if (which & 0x0400) // switch renderer\r
486 {\r
cc68a136 487 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
488 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
489 else currentConfig.EmuOpt &= ~0x80;\r
490\r
491 vidResetMode();\r
492\r
493 if (PicoOpt&0x10) {\r
494 strcpy(noticeMsg, " 8bit fast renderer");\r
495 } else if (currentConfig.EmuOpt&0x80) {\r
496 strcpy(noticeMsg, "16bit accurate renderer");\r
497 } else {\r
498 strcpy(noticeMsg, " 8bit accurate renderer");\r
499 }\r
500\r
501 gettimeofday(&noticeMsgTime, 0);\r
502 }\r
4a32f01f 503 if (which & 0x0300)\r
504 {\r
cc68a136 505 if(which&0x0200) {\r
506 state_slot -= 1;\r
507 if(state_slot < 0) state_slot = 9;\r
508 } else {\r
509 state_slot += 1;\r
510 if(state_slot > 9) state_slot = 0;\r
511 }\r
ea8c405f 512 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
cc68a136 513 gettimeofday(&noticeMsgTime, 0);\r
514 }\r
4a32f01f 515 if (which & 0x0080) {\r
cc68a136 516 engineState = PGS_Menu;\r
517 }\r
518}\r
519\r
520\r
521static void updateKeys(void)\r
522{\r
523 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
524 static unsigned long prevEvents = 0;\r
525 int joy, i;\r
526\r
527 keys = gp2x_joystick_read(0);\r
528 if (keys & GP2X_SELECT) {\r
529 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
530 // wait until select is released, so menu would not resume game\r
531 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
532 }\r
533\r
534 keys &= CONFIGURABLE_KEYS;\r
535\r
536 for (i = 0; i < 32; i++)\r
537 {\r
bdec53c9 538 if (keys & (1 << i))\r
539 {\r
cc68a136 540 int pl, acts = currentConfig.KeyBinds[i];\r
541 if (!acts) continue;\r
542 pl = (acts >> 16) & 1;\r
bdec53c9 543 if (kb_combo_keys & (1 << i))\r
544 {\r
da310283 545 int u = i+1, acts_c = acts & kb_combo_acts;\r
cc68a136 546 // let's try to find the other one\r
bdec53c9 547 if (acts_c) {\r
da310283 548 for (; u < 32; u++)\r
bdec53c9 549 if ( (keys & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {\r
550 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];\r
cc68a136 551 keys &= ~((1 << i) | (1 << u));\r
552 break;\r
553 }\r
bdec53c9 554 }\r
cc68a136 555 // add non-combo actions if combo ones were not found\r
556 if (!acts_c || u == 32)\r
bdec53c9 557 allActions[pl] |= acts & ~kb_combo_acts;\r
cc68a136 558 } else {\r
559 allActions[pl] |= acts;\r
560 }\r
561 }\r
562 }\r
563\r
564 // add joy inputs\r
565 if (num_of_joys > 0)\r
566 {\r
567 gp2x_usbjoy_update();\r
568 for (joy = 0; joy < num_of_joys; joy++) {\r
569 int keys = gp2x_usbjoy_check2(joy);\r
570 for (i = 0; i < 32; i++) {\r
571 if (keys & (1 << i)) {\r
572 int acts = currentConfig.JoyBinds[joy][i];\r
573 int pl = (acts >> 16) & 1;\r
574 allActions[pl] |= acts;\r
575 }\r
576 }\r
577 }\r
578 }\r
579\r
8c1952f0 580 PicoPad[0] = (unsigned short) allActions[0];\r
581 PicoPad[1] = (unsigned short) allActions[1];\r
cc68a136 582\r
583 events = (allActions[0] | allActions[1]) >> 16;\r
584\r
585 // volume is treated in special way and triggered every frame\r
4a32f01f 586 if (events & 0x6000)\r
587 update_volume(1, events & 0x2000);\r
588\r
589 if ((events ^ prevEvents) & 0x40)\r
590 change_fast_forward(events & 0x40);\r
cc68a136 591\r
592 events &= ~prevEvents;\r
593 if (events) RunEvents(events);\r
ea8c405f 594 if (movie_data) emu_updateMovie();\r
cc68a136 595\r
596 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
597}\r
598\r
cc68a136 599\r
7a93adeb 600static void updateSound(int len)\r
cc68a136 601{\r
7a93adeb 602 if (PicoOpt&8) len<<=1;\r
cc68a136 603\r
01bc6b19 604 /* avoid writing audio when lagging behind to prevent audio lag */\r
605 if (PicoSkipFrame != 2)\r
606 gp2x_sound_write(PsndOut, len<<1);\r
cc68a136 607}\r
608\r
609\r
01bc6b19 610static void SkipFrame(int do_audio)\r
cc68a136 611{\r
01bc6b19 612 PicoSkipFrame=do_audio ? 1 : 2;\r
cc68a136 613 PicoFrame();\r
614 PicoSkipFrame=0;\r
cc68a136 615}\r
616\r
617\r
ea8c405f 618void emu_forcedFrame(void)\r
860c6322 619{\r
620 int po_old = PicoOpt;\r
a12e0116 621 int eo_old = currentConfig.EmuOpt;\r
622\r
623 PicoOpt &= ~0x0010;\r
624 PicoOpt |= 0x4080; // soft_scale | acc_sprites\r
625 currentConfig.EmuOpt |= 0x80;\r
860c6322 626\r
a12e0116 627 //vidResetMode();\r
628 PicoDrawSetColorFormat(1);\r
629 PicoScan = EmuScan16;\r
630 PicoScan(0, 0);\r
631 Pico.m.dirtyPal = 1;\r
632 PicoFrameDrawOnly();\r
860c6322 633\r
a12e0116 634/*\r
860c6322 635 if (!(Pico.video.reg[12]&1)) {\r
68cba51e 636 vidCpyM2 = vidCpyM2_32col;\r
860c6322 637 clearArea(1);\r
68cba51e 638 } else vidCpyM2 = vidCpyM2_40col;\r
860c6322 639\r
e5f426aa 640 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
860c6322 641 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
642 gp2x_video_setpalette(localPal, 0x40);\r
a12e0116 643*/\r
48e8482f 644 PicoOpt = po_old;\r
a12e0116 645 currentConfig.EmuOpt = eo_old;\r
860c6322 646}\r
647\r
cc68a136 648static void simpleWait(int thissec, int lim_time)\r
649{\r
650 struct timeval tval;\r
651\r
652 spend_cycles(1024);\r
653 gettimeofday(&tval, 0);\r
da310283 654 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
cc68a136 655\r
da310283 656 if (tval.tv_usec < lim_time)\r
657 sched_yield();\r
658\r
659 while (tval.tv_usec < lim_time)\r
cc68a136 660 {\r
661 spend_cycles(1024);\r
662 gettimeofday(&tval, 0);\r
da310283 663 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
cc68a136 664 }\r
665}\r
666\r
667\r
da310283 668#if 0\r
669static void tga_dump(void)\r
670{\r
671#define BYTE unsigned char\r
672#define WORD unsigned short\r
673 struct\r
674 {\r
675 BYTE IDLength; /* 00h Size of Image ID field */\r
676 BYTE ColorMapType; /* 01h Color map type */\r
677 BYTE ImageType; /* 02h Image type code */\r
678 WORD CMapStart; /* 03h Color map origin */\r
679 WORD CMapLength; /* 05h Color map length */\r
680 BYTE CMapDepth; /* 07h Depth of color map entries */\r
681 WORD XOffset; /* 08h X origin of image */\r
682 WORD YOffset; /* 0Ah Y origin of image */\r
683 WORD Width; /* 0Ch Width of image */\r
684 WORD Height; /* 0Eh Height of image */\r
685 BYTE PixelDepth; /* 10h Image pixel size */\r
686 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
687 } __attribute__((packed)) TGAHEAD;\r
688 static unsigned short oldscr[320*240];\r
689 FILE *f; char name[128]; int i;\r
690\r
691 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
692 TGAHEAD.ImageType = 2;\r
693 TGAHEAD.Width = 320;\r
694 TGAHEAD.Height = 240;\r
695 TGAHEAD.PixelDepth = 16;\r
696 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
697\r
698#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
699\r
700 for (i = 0; i < 320*240; i++)\r
701 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
702 if (i < 320*240)\r
703 {\r
704 for (i = 0; i < 320*240; i++)\r
705 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
706 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
707 f = fopen(name, "wb");\r
708 if (!f) { printf("!f\n"); exit(1); }\r
709 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
710 fwrite(oldscr, 1, 320*240*2, f);\r
711 fclose(f);\r
712 }\r
713}\r
714#endif\r
715\r
716\r
cc68a136 717void emu_Loop(void)\r
718{\r
719 static int gp2x_old_clock = 200;\r
fa283c9a 720 static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;\r
cc68a136 721 char fpsbuff[24]; // fps count c string\r
722 struct timeval tval; // timing\r
da310283 723 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
724 int frames_done, frames_shown, thissec; // actual frames\r
725 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
cc68a136 726 char *notice = 0;\r
727\r
728 printf("entered emu_Loop()\n");\r
729\r
730 if (gp2x_old_clock != currentConfig.CPUclock) {\r
731 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
732 set_FCLK(currentConfig.CPUclock);\r
733 gp2x_old_clock = currentConfig.CPUclock;\r
734 printf(" done\n");\r
735 }\r
736\r
82bc9cdd 737 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
738 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
cc68a136 739 gp2x_old_gamma = currentConfig.gamma;\r
82bc9cdd 740 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
cc68a136 741 }\r
742\r
aae35e84 743 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
744 if (currentConfig.EmuOpt&0x2000)\r
745 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
746 else unset_LCD_custom_rate();\r
747 }\r
748\r
749 EmuOpt_old = currentConfig.EmuOpt;\r
cc68a136 750 fpsbuff[0] = 0;\r
751\r
752 // make sure we are in correct mode\r
753 vidResetMode();\r
ea8c405f 754 scaling_update();\r
e11c5548 755 Pico.m.dirtyPal = 1;\r
cc68a136 756 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
bdec53c9 757 emu_findKeyBindCombos();\r
cc68a136 758\r
759 // pal/ntsc might have changed, reset related stuff\r
760 target_fps = Pico.m.pal ? 50 : 60;\r
761 target_frametime = 1000000/target_fps;\r
762 reset_timing = 1;\r
763\r
764 // prepare sound stuff\r
4a32f01f 765 if (currentConfig.EmuOpt & 4)\r
766 {\r
7a93adeb 767 int snd_excess_add;\r
1dceadae 768 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
769 ((PicoOpt&0x200) && crashed_940)) {\r
9d917eea 770 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
cc68a136 771 }\r
cc68a136 772 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1dceadae 773 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
774 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
cc68a136 775 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
776 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
777 PicoWriteSound = updateSound;\r
4a32f01f 778 update_volume(0, 0);\r
7a93adeb 779 memset(sndBuffer, 0, sizeof(sndBuffer));\r
780 PsndOut = sndBuffer;\r
cc68a136 781 PsndRate_old = PsndRate;\r
cc68a136 782 PicoOpt_old = PicoOpt;\r
783 pal_old = Pico.m.pal;\r
784 } else {\r
4a32f01f 785 PsndOut = NULL;\r
cc68a136 786 }\r
787\r
0a051f55 788 // prepare CD buffer\r
789 if (PicoMCD & 1) PicoCDBufferInit();\r
790\r
aae35e84 791 // calc vsync offset to sync timing code with vsync\r
792 if (currentConfig.EmuOpt&0x2000) {\r
793 gettimeofday(&tval, 0);\r
794 gp2x_video_wait_vsync();\r
795 gettimeofday(&tval, 0);\r
796 vsync_offset = tval.tv_usec;\r
797 while (vsync_offset >= target_frametime)\r
798 vsync_offset -= target_frametime;\r
799 if (!vsync_offset) vsync_offset++;\r
800 printf("vsync_offset: %i\n", vsync_offset);\r
801 } else\r
802 vsync_offset = 0;\r
803\r
da310283 804 frames_done = frames_shown = thissec =\r
805 pframes_done = pframes_shown = pthissec = 0;\r
806\r
807 // loop\r
cc68a136 808 while (engineState == PGS_Running)\r
809 {\r
810 int modes;\r
811\r
812 gettimeofday(&tval, 0);\r
4a32f01f 813 if (reset_timing) {\r
cc68a136 814 reset_timing = 0;\r
da310283 815 pthissec = tval.tv_sec;\r
816 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
cc68a136 817 }\r
818\r
819 // show notice message?\r
4a32f01f 820 if (noticeMsgTime.tv_sec)\r
821 {\r
cc68a136 822 static int noticeMsgSum;\r
823 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
824 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
825 clearArea(0);\r
826 notice = 0;\r
827 } else {\r
828 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
829 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
830 notice = noticeMsg;\r
831 }\r
832 }\r
833\r
834 // check for mode changes\r
835 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
4a32f01f 836 if (modes != oldmodes)\r
837 {\r
cc68a136 838 int scalex = 320;\r
839 osd_fps_x = OSD_FPS_X;\r
840 if (modes & 4) {\r
841 vidCpyM2 = vidCpyM2_40col;\r
842 } else {\r
843 if (PicoOpt & 0x100) {\r
844 vidCpyM2 = vidCpyM2_32col_nobord;\r
845 scalex = 256;\r
846 osd_fps_x = OSD_FPS_X - 64;\r
847 } else {\r
848 vidCpyM2 = vidCpyM2_32col;\r
849 }\r
850 }\r
2433f409 851 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
852 gp2x_video_RGB_setscaling(8, scalex, 224);\r
853 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
cc68a136 854 oldmodes = modes;\r
855 clearArea(1);\r
856 }\r
857\r
858 // second changed?\r
4a32f01f 859 if (thissec != tval.tv_sec)\r
860 {\r
cc68a136 861#ifdef BENCHMARK\r
862 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
4a32f01f 863 if (++bench == 10) {\r
cc68a136 864 bench = 0;\r
865 bench_fps_s = bench_fps;\r
866 bf[bfp++ & 3] = bench_fps;\r
867 bench_fps = 0;\r
868 }\r
869 bench_fps += frames_shown;\r
870 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
871#else\r
4a32f01f 872 if (currentConfig.EmuOpt & 2)\r
cc68a136 873 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
4a32f01f 874 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
cc68a136 875#endif\r
da310283 876 frames_shown = frames_done = 0;\r
cc68a136 877 thissec = tval.tv_sec;\r
da310283 878 }\r
879#ifdef PFRAMES\r
880 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
881#endif\r
cc68a136 882\r
da310283 883 if (pthissec != tval.tv_sec)\r
884 {\r
4a32f01f 885 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
da310283 886 pframes_done = pframes_shown = 0;\r
cc68a136 887 } else {\r
888 // it is quite common for this implementation to leave 1 fame unfinished\r
889 // when second changes, but we don't want buffer to starve.\r
da310283 890 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
cc68a136 891 updateKeys();\r
da310283 892 SkipFrame(1); pframes_done++;\r
cc68a136 893 }\r
894\r
da310283 895 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
896 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
897 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
cc68a136 898 }\r
da310283 899 pthissec = tval.tv_sec;\r
cc68a136 900 }\r
aae35e84 901\r
da310283 902 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
903 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
904 {\r
cc68a136 905 for(i = 0; i < currentConfig.Frameskip; i++) {\r
906 updateKeys();\r
da310283 907 SkipFrame(1); pframes_done++; frames_done++;\r
4a32f01f 908 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
cc68a136 909 gettimeofday(&tval, 0);\r
da310283 910 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
911 if (tval.tv_usec < lim_time) { // we are too fast\r
912 simpleWait(pthissec, lim_time);\r
cc68a136 913 }\r
914 }\r
915 lim_time += target_frametime;\r
916 }\r
da310283 917 }\r
918 else if (tval.tv_usec > lim_time) // auto frameskip\r
919 {\r
cc68a136 920 // no time left for this frame - skip\r
ea8c405f 921 if (tval.tv_usec - lim_time >= 300000) {\r
4ff2d527 922 /* something caused a slowdown for us (disk access? cache flush?)\r
923 * try to recover by resetting timing... */\r
924 reset_timing = 1;\r
925 continue;\r
926 }\r
cc68a136 927 updateKeys();\r
da310283 928 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
cc68a136 929 continue;\r
930 }\r
931\r
932 updateKeys();\r
933 PicoFrame();\r
934\r
935 // check time\r
936 gettimeofday(&tval, 0);\r
da310283 937 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
cc68a136 938\r
ea8c405f 939 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
4ff2d527 940 reset_timing = 1;\r
941 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
cc68a136 942 {\r
aae35e84 943 // sleep or vsync if we are still too fast\r
cc68a136 944 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
4a32f01f 945 if (!reset_timing && tval.tv_usec < lim_time)\r
cc68a136 946 {\r
947 // we are too fast\r
aae35e84 948 if (vsync_offset) {\r
949 if (lim_time - tval.tv_usec > target_frametime/2)\r
da310283 950 simpleWait(pthissec, lim_time - target_frametime/4);\r
aae35e84 951 gp2x_video_wait_vsync();\r
952 } else {\r
da310283 953 simpleWait(pthissec, lim_time);\r
aae35e84 954 }\r
cc68a136 955 }\r
956 }\r
957\r
958 blit(fpsbuff, notice);\r
959\r
da310283 960 pframes_done++; pframes_shown++;\r
961 frames_done++; frames_shown++;\r
cc68a136 962 }\r
963\r
4a32f01f 964 change_fast_forward(0);\r
0a051f55 965\r
966 if (PicoMCD & 1) PicoCDBufferFree();\r
967\r
cc68a136 968 // save SRAM\r
969 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
6cadc2da 970 emu_state_cb("Writing SRAM/BRAM..");\r
cc68a136 971 emu_SaveLoadGame(0, 1);\r
972 SRam.changed = 0;\r
973 }\r
e11c5548 974\r
a12e0116 975 // if in 8bit mode, generate 16bit image for menu background\r
976 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
ea8c405f 977 emu_forcedFrame();\r
cc68a136 978}\r
979\r
980\r
981void emu_ResetGame(void)\r
982{\r
983 PicoReset(0);\r
984 reset_timing = 1;\r
985}\r
986\r
fast MegaDrive/MegaCD/32X emulator