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extracted OSS code to sndout_oss_*, BTN->PBTN, refactoring
[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
720ee7f6 19#include "menu.h"\r
b3972d82 20#include "../linux/usbjoy.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
b3972d82 25#include "../linux/sndout_oss.h"\r
720ee7f6 26#include "cpuctrl.h"\r
27\r
f11bad75 28#include <pico/pico_int.h>\r
29#include <pico/patch.h>\r
30#include <pico/sound/mix.h>\r
70d2ecc5 31#include <zlib/zlib.h>\r
720ee7f6 32\r
4327ec37 33//#define PFRAMES\r
720ee7f6 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
720ee7f6 41\r
42int engineState;\r
43int select_exits = 0;\r
720ee7f6 44\r
45char romFileName[PATH_MAX];\r
720ee7f6 46\r
47extern int crashed_940;\r
48\r
6245d5a0 49static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
720ee7f6 50static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
8f1b51ef 51static int osd_fps_x;\r
720ee7f6 52static int gp2x_old_gamma = 100;\r
c7a4ff64 53unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
8f1b51ef 54int reset_timing = 0;\r
720ee7f6 55\r
2b395ee0 56#define PICO_PEN_ADJUST_X 4\r
57#define PICO_PEN_ADJUST_Y 2\r
8a091e48 58static int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
e1cd546f 59\r
f013066e 60static void emu_msg_cb(const char *msg);\r
61static void emu_msg_tray_open(void);\r
720ee7f6 62\r
720ee7f6 63\r
f013066e 64void emu_noticeMsgUpdated(void)\r
720ee7f6 65{\r
f013066e 66 gettimeofday(&noticeMsgTime, 0);\r
720ee7f6 67}\r
68\r
36f6fd5a 69int emu_getMainDir(char *dst, int len)\r
25fced50 70{\r
f013066e 71 extern char **g_argv;\r
72 int j;\r
25fced50 73\r
f013066e 74 strncpy(dst, g_argv[0], len);\r
75 len -= 32; // reserve\r
76 if (len < 0) len = 0;\r
77 dst[len] = 0;\r
78 for (j = strlen(dst); j > 0; j--)\r
79 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
36f6fd5a 80\r
81 return j + 1;\r
25fced50 82}\r
83\r
720ee7f6 84void emu_Init(void)\r
85{\r
86 // make temp buffer for alt renderer\r
c7a4ff64 87 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
88 if (!PicoDraw2FB)\r
720ee7f6 89 {\r
c7a4ff64 90 printf("PicoDraw2FB == 0\n");\r
720ee7f6 91 }\r
92\r
4ffd2858 93 // make dirs for saves, cfgs, etc.\r
94 mkdir("mds", 0777);\r
95 mkdir("srm", 0777);\r
96 mkdir("brm", 0777);\r
97 mkdir("cfg", 0777);\r
98\r
720ee7f6 99 PicoInit();\r
dfa4c846 100 PicoMessage = emu_msg_cb;\r
5e2e14f2 101 PicoMCDopenTray = emu_msg_tray_open;\r
102 PicoMCDcloseTray = menu_loop_tray;\r
720ee7f6 103}\r
104\r
105\r
f013066e 106static void scaling_update(void)\r
79cad122 107{\r
108 PicoOpt &= ~0x4100;\r
109 switch (currentConfig.scaling) {\r
110 default: break; // off\r
111 case 1: // hw hor\r
112 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
113 case 3: PicoOpt |= 0x4000; break; // sw hor\r
114 }\r
115}\r
116\r
117\r
720ee7f6 118void emu_Deinit(void)\r
119{\r
120 // save SRAM\r
121 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
122 emu_SaveLoadGame(0, 1);\r
123 SRam.changed = 0;\r
124 }\r
125\r
79cad122 126 if (!(currentConfig.EmuOpt & 0x20)) {\r
0ae25549 127 config_writelrom(PicoConfigFile);\r
79cad122 128#ifndef NO_SYNC\r
0ae25549 129 sync();\r
79cad122 130#endif\r
79cad122 131 }\r
132\r
c7a4ff64 133 free(PicoDraw2FB);\r
720ee7f6 134\r
135 PicoExit();\r
720ee7f6 136\r
137 // restore gamma\r
138 if (gp2x_old_gamma != 100)\r
55a951dd 139 set_gamma(100, 0);\r
720ee7f6 140}\r
141\r
0ae25549 142void emu_prepareDefaultConfig(void)\r
143{\r
144 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
100ae778 145 defaultConfig.EmuOpt = 0x9d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds\r
84e21f25 146 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;\r
0ae25549 147 defaultConfig.s_PsndRate = 44100;\r
148 defaultConfig.s_PicoRegion = 0; // auto\r
149 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
88bfc63d 150 defaultConfig.s_PicoCDBuffers = 0;\r
0ae25549 151 defaultConfig.Frameskip = -1; // auto\r
152 defaultConfig.CPUclock = 200;\r
153 defaultConfig.volume = 50;\r
154 defaultConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
155 defaultConfig.KeyBinds[ 4] = 1<<1;\r
156 defaultConfig.KeyBinds[ 2] = 1<<2;\r
157 defaultConfig.KeyBinds[ 6] = 1<<3;\r
158 defaultConfig.KeyBinds[14] = 1<<4;\r
159 defaultConfig.KeyBinds[13] = 1<<5;\r
160 defaultConfig.KeyBinds[12] = 1<<6;\r
161 defaultConfig.KeyBinds[ 8] = 1<<7;\r
162 defaultConfig.KeyBinds[15] = 1<<26; // switch rend\r
163 defaultConfig.KeyBinds[10] = 1<<27; // save state\r
164 defaultConfig.KeyBinds[11] = 1<<28; // load state\r
165 defaultConfig.KeyBinds[23] = 1<<29; // vol up\r
166 defaultConfig.KeyBinds[22] = 1<<30; // vol down\r
167 defaultConfig.gamma = 100;\r
168 defaultConfig.scaling = 0;\r
6589c840 169 defaultConfig.turbo_rate = 15;\r
0ae25549 170}\r
171\r
0805b5b4 172void osd_text(int x, int y, const char *text)\r
720ee7f6 173{\r
174 int len = strlen(text)*8;\r
175\r
176 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
daf91588 177 int *p, i, h;\r
720ee7f6 178 x &= ~3; // align x\r
179 len = (len+3) >> 2;\r
180 for (h = 0; h < 8; h++) {\r
181 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
daf91588 182 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
720ee7f6 183 }\r
f013066e 184 emu_textOut8(x, y, text);\r
720ee7f6 185 } else {\r
186 int *p, i, h;\r
187 x &= ~1; // align x\r
188 len = (len+1) >> 1;\r
189 for (h = 0; h < 8; h++) {\r
190 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
191 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
192 }\r
f013066e 193 emu_textOut16(x, y, text);\r
720ee7f6 194 }\r
195}\r
196\r
2b395ee0 197static void draw_cd_leds(void)\r
daf91588 198{\r
8dfb9fd5 199// static\r
200 int old_reg;\r
8ede36b9 201// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
daf91588 202 old_reg = Pico_mcd->s68k_regs[0];\r
203\r
204 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
205 // 8-bit modes\r
206 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
207 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
49fe50f0 208 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
209 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
210 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
211 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
212 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
213 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
daf91588 214 } else {\r
215 // 16-bit modes\r
49fe50f0 216 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
daf91588 217 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
218 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 219 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
220 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
8ede36b9 221 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
daf91588 222 }\r
223}\r
224\r
2b395ee0 225static void draw_pico_ptr(void)\r
226{\r
227 unsigned short *p = (unsigned short *)gp2x_screen;\r
228\r
229 // only if pen enabled and for 16bit modes\r
230 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
231\r
232 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
233 p += 32;\r
234\r
235 p += 320 * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
236 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
237 p[0] ^= 0xffff;\r
238 p[319] ^= 0xffff;\r
239 p[320] ^= 0xffff;\r
240 p[321] ^= 0xffff;\r
241 p[640] ^= 0xffff;\r
242}\r
243\r
dd5fd477 244static int EmuScanBegin16(unsigned int num)\r
720ee7f6 245{\r
246 if (!(Pico.video.reg[1]&8)) num += 8;\r
dd5fd477 247 DrawLineDest = (unsigned short *) gp2x_screen + 320 * num;\r
720ee7f6 248\r
249 return 0;\r
250}\r
251\r
dd5fd477 252static int EmuScanBegin8(unsigned int num)\r
720ee7f6 253{\r
254 if (!(Pico.video.reg[1]&8)) num += 8;\r
dd5fd477 255 DrawLineDest = (unsigned char *) gp2x_screen + 320 * num;\r
720ee7f6 256\r
257 return 0;\r
258}\r
259\r
e5d315a5 260int localPal[0x100];\r
720ee7f6 261static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
262\r
0805b5b4 263static void blit(const char *fps, const char *notice)\r
720ee7f6 264{\r
daf91588 265 int emu_opt = currentConfig.EmuOpt;\r
266\r
b3818d1e 267 if (PicoOpt&0x10)\r
268 {\r
720ee7f6 269 // 8bit fast renderer\r
270 if (Pico.m.dirtyPal) {\r
271 Pico.m.dirtyPal = 0;\r
272 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
273 // feed new palette to our device\r
274 gp2x_video_setpalette(localPal, 0x40);\r
275 }\r
b3818d1e 276 // a hack for VR\r
277 if (PicoRead16Hook == PicoSVPRead16)\r
278 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
279 // do actual copy\r
c7a4ff64 280 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
b3818d1e 281 }\r
282 else if (!(emu_opt&0x80))\r
283 {\r
720ee7f6 284 // 8bit accurate renderer\r
dd5fd477 285 if (Pico.m.dirtyPal)\r
286 {\r
61f66fe0 287 int pallen = 0xc0;\r
720ee7f6 288 Pico.m.dirtyPal = 0;\r
b13a934c 289 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
290 {\r
720ee7f6 291 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
292 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
293 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
67dfdf5f 294 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
b13a934c 295 pallen = 0x100;\r
296 }\r
b13a934c 297 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
720ee7f6 298 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
299 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
300 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
b13a934c 301 }\r
302 else {\r
720ee7f6 303 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
61f66fe0 304 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
720ee7f6 305 }\r
b13a934c 306 if (pallen > 0xc0) {\r
307 localPal[0xc0] = 0x0000c000;\r
308 localPal[0xd0] = 0x00c00000;\r
309 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
310 localPal[0xf0] = 0x00ffffff;\r
311 }\r
312 gp2x_video_setpalette(localPal, pallen);\r
720ee7f6 313 }\r
314 }\r
315\r
79cad122 316 if (notice || (emu_opt & 2)) {\r
317 int h = 232;\r
318 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
319 if (notice) osd_text(4, h, notice);\r
320 if (emu_opt & 2)\r
321 osd_text(osd_fps_x, h, fps);\r
322 }\r
dd5fd477 323 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
2b395ee0 324 draw_cd_leds();\r
325 if (PicoAHW & PAHW_PICO)\r
326 draw_pico_ptr();\r
720ee7f6 327\r
328 //gp2x_video_wait_vsync();\r
329 gp2x_video_flip();\r
330\r
331 if (!(PicoOpt&0x10)) {\r
332 if (!(Pico.video.reg[1]&8)) {\r
333 if (currentConfig.EmuOpt&0x80) {\r
334 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
335 } else {\r
336 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
337 }\r
338 } else {\r
339 DrawLineDest = gp2x_screen;\r
340 }\r
341 }\r
342}\r
343\r
344\r
345// clears whole screen or just the notice area (in all buffers)\r
346static void clearArea(int full)\r
347{\r
daf91588 348 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
349 // 8-bit renderers\r
350 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
351 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
352 } else {\r
720ee7f6 353 // 16bit accurate renderer\r
354 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
355 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 356 }\r
357}\r
358\r
359\r
360static void vidResetMode(void)\r
361{\r
362 if (PicoOpt&0x10) {\r
720ee7f6 363 gp2x_video_changemode(8);\r
720ee7f6 364 } else if (currentConfig.EmuOpt&0x80) {\r
13059a60 365 gp2x_video_changemode(16);\r
720ee7f6 366 PicoDrawSetColorFormat(1);\r
dd5fd477 367 PicoScanBegin = EmuScanBegin16;\r
720ee7f6 368 } else {\r
daf91588 369 gp2x_video_changemode(8);\r
370 PicoDrawSetColorFormat(2);\r
dd5fd477 371 PicoScanBegin = EmuScanBegin8;\r
daf91588 372 }\r
373 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
374 // setup pal for 8-bit modes\r
375 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
376 localPal[0xd0] = 0x00c00000;\r
720ee7f6 377 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
378 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 379 gp2x_video_setpalette(localPal, 0x100);\r
380 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
381 gp2x_video_flip();\r
720ee7f6 382 }\r
383 Pico.m.dirtyPal = 1;\r
384 // reset scaling\r
79cad122 385 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
386 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
387 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
720ee7f6 388}\r
389\r
390\r
dfa4c846 391static void emu_msg_cb(const char *msg)\r
392{\r
393 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
394 // 8-bit renderers\r
395 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
396 osd_text(4, 232, msg);\r
397 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
398 } else {\r
399 // 16bit accurate renderer\r
400 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
401 osd_text(4, 232, msg);\r
402 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
403 }\r
404 gettimeofday(&noticeMsgTime, 0);\r
405 noticeMsgTime.tv_sec -= 2;\r
e5589947 406\r
407 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
408 reset_timing = 1;\r
dfa4c846 409}\r
410\r
1078e544 411static void emu_state_cb(const char *str)\r
412{\r
413 clearArea(0);\r
414 blit("", str);\r
415}\r
416\r
5e2e14f2 417static void emu_msg_tray_open(void)\r
418{\r
419 strcpy(noticeMsg, "CD tray opened");\r
420 gettimeofday(&noticeMsgTime, 0);\r
421}\r
422\r
e1cd546f 423static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)\r
424{\r
6589c840 425 int ret, px, py, lim_x;\r
3f2aaff2 426 static int pdown_frames = 0;\r
427\r
8a091e48 428 emu_RunEventsPico(events);\r
429\r
6589c840 430 if (pico_inp_mode == 0) return;\r
3f2aaff2 431\r
432 // for F200\r
433 ret = gp2x_touchpad_read(&px, &py);\r
6589c840 434 if (ret >= 0)\r
435 {\r
436 if (ret > 35000)\r
437 {\r
3f2aaff2 438 if (pdown_frames++ > 5)\r
439 PicoPad[0] |= 0x20;\r
440\r
441 pico_pen_x = px;\r
442 pico_pen_y = py;\r
443 if (!(Pico.video.reg[12]&1)) {\r
444 pico_pen_x -= 32;\r
445 if (pico_pen_x < 0) pico_pen_x = 0;\r
446 if (pico_pen_x > 248) pico_pen_x = 248;\r
447 }\r
448 if (pico_pen_y > 224) pico_pen_y = 224;\r
449 }\r
450 else\r
6589c840 451 pdown_frames = 0;\r
3f2aaff2 452\r
453 //if (ret == 0)\r
454 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
455 }\r
6589c840 456\r
457 PicoPad[0] &= ~0x0f; // release UDLR\r
458 if (gp2x_keys & GP2X_UP) pico_pen_y--;\r
459 if (gp2x_keys & GP2X_DOWN) pico_pen_y++;\r
460 if (gp2x_keys & GP2X_LEFT) pico_pen_x--;\r
461 if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;\r
462\r
463 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
464 if (pico_pen_y < 8) pico_pen_y = 8;\r
465 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
466 if (pico_pen_x < 0) pico_pen_x = 0;\r
467 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
468\r
469 PicoPicohw.pen_pos[0] = pico_pen_x;\r
470 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
471 PicoPicohw.pen_pos[0] += 0x3c;\r
472 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
e1cd546f 473}\r
474\r
0480e6c9 475static void update_volume(int has_changed, int is_up)\r
476{\r
477 static int prev_frame = 0, wait_frames = 0;\r
478 int vol = currentConfig.volume;\r
479\r
480 if (has_changed)\r
481 {\r
482 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
483 wait_frames++;\r
484 else {\r
485 if (is_up) {\r
486 if (vol < 99) vol++;\r
487 } else {\r
488 if (vol > 0) vol--;\r
489 }\r
490 wait_frames = 0;\r
b3972d82 491 sndout_oss_setvol(vol, vol);\r
0480e6c9 492 currentConfig.volume = vol;\r
493 }\r
494 sprintf(noticeMsg, "VOL: %02i", vol);\r
495 gettimeofday(&noticeMsgTime, 0);\r
496 prev_frame = Pico.m.frame_count;\r
497 }\r
498\r
499 // set the right mixer func\r
500 if (!(PicoOpt&8)) return; // just use defaults for mono\r
501 if (vol >= 5)\r
502 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
503 else {\r
504 mix_32_to_16l_level = 5 - vol;\r
505 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
506 }\r
507}\r
508\r
720ee7f6 509static void RunEvents(unsigned int which)\r
510{\r
0480e6c9 511 if (which & 0x1800) // save or load (but not both)\r
512 {\r
720ee7f6 513 int do_it = 1;\r
f013066e 514 if ( emu_checkSaveFile(state_slot) &&\r
46ede6a6 515 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
516 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
720ee7f6 517 unsigned long keys;\r
46ede6a6 518 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
30d5518a 519 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
720ee7f6 520 usleep(50*1024);\r
521 if (keys & GP2X_X) do_it = 0;\r
30d5518a 522 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release\r
523 usleep(50*1024);\r
720ee7f6 524 clearArea(0);\r
525 }\r
526 if (do_it) {\r
0805b5b4 527 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
1078e544 528 PicoStateProgressCB = emu_state_cb;\r
529 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
0805b5b4 530 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
1078e544 531 PicoStateProgressCB = NULL;\r
720ee7f6 532 }\r
533\r
534 reset_timing = 1;\r
535 }\r
0480e6c9 536 if (which & 0x0400) // switch renderer\r
537 {\r
720ee7f6 538 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
539 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
540 else currentConfig.EmuOpt &= ~0x80;\r
541\r
542 vidResetMode();\r
543\r
544 if (PicoOpt&0x10) {\r
545 strcpy(noticeMsg, " 8bit fast renderer");\r
546 } else if (currentConfig.EmuOpt&0x80) {\r
547 strcpy(noticeMsg, "16bit accurate renderer");\r
548 } else {\r
549 strcpy(noticeMsg, " 8bit accurate renderer");\r
550 }\r
551\r
552 gettimeofday(&noticeMsgTime, 0);\r
553 }\r
0480e6c9 554 if (which & 0x0300)\r
555 {\r
720ee7f6 556 if(which&0x0200) {\r
557 state_slot -= 1;\r
558 if(state_slot < 0) state_slot = 9;\r
559 } else {\r
560 state_slot += 1;\r
561 if(state_slot > 9) state_slot = 0;\r
562 }\r
f013066e 563 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
720ee7f6 564 gettimeofday(&noticeMsgTime, 0);\r
565 }\r
0480e6c9 566 if (which & 0x0080) {\r
720ee7f6 567 engineState = PGS_Menu;\r
568 }\r
569}\r
570\r
720ee7f6 571static void updateKeys(void)\r
572{\r
e1cd546f 573 unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;\r
574 static unsigned int prevEvents = 0;\r
720ee7f6 575 int joy, i;\r
576\r
577 keys = gp2x_joystick_read(0);\r
578 if (keys & GP2X_SELECT) {\r
579 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
580 // wait until select is released, so menu would not resume game\r
581 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
582 }\r
583\r
584 keys &= CONFIGURABLE_KEYS;\r
e1cd546f 585 keys2 = keys;\r
720ee7f6 586\r
587 for (i = 0; i < 32; i++)\r
588 {\r
e1cd546f 589 if (keys2 & (1 << i))\r
8e708f92 590 {\r
720ee7f6 591 int pl, acts = currentConfig.KeyBinds[i];\r
592 if (!acts) continue;\r
593 pl = (acts >> 16) & 1;\r
8e708f92 594 if (kb_combo_keys & (1 << i))\r
595 {\r
450dab6f 596 int u = i+1, acts_c = acts & kb_combo_acts;\r
720ee7f6 597 // let's try to find the other one\r
8e708f92 598 if (acts_c) {\r
450dab6f 599 for (; u < 32; u++)\r
e1cd546f 600 if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {\r
8e708f92 601 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];\r
e1cd546f 602 keys2 &= ~((1 << i) | (1 << u));\r
720ee7f6 603 break;\r
604 }\r
8e708f92 605 }\r
720ee7f6 606 // add non-combo actions if combo ones were not found\r
607 if (!acts_c || u == 32)\r
8e708f92 608 allActions[pl] |= acts & ~kb_combo_acts;\r
720ee7f6 609 } else {\r
610 allActions[pl] |= acts;\r
611 }\r
612 }\r
613 }\r
614\r
615 // add joy inputs\r
616 if (num_of_joys > 0)\r
617 {\r
b3972d82 618 usbjoy_update();\r
720ee7f6 619 for (joy = 0; joy < num_of_joys; joy++) {\r
b3972d82 620 int btns = usbjoy_check2(joy);\r
720ee7f6 621 for (i = 0; i < 32; i++) {\r
e1cd546f 622 if (btns & (1 << i)) {\r
720ee7f6 623 int acts = currentConfig.JoyBinds[joy][i];\r
624 int pl = (acts >> 16) & 1;\r
625 allActions[pl] |= acts;\r
626 }\r
627 }\r
628 }\r
629 }\r
630\r
6589c840 631 PicoPad[0] = allActions[0] & 0xfff;\r
632 PicoPad[1] = allActions[1] & 0xfff;\r
633\r
634 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
635 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
720ee7f6 636\r
637 events = (allActions[0] | allActions[1]) >> 16;\r
638\r
639 // volume is treated in special way and triggered every frame\r
0480e6c9 640 if (events & 0x6000)\r
641 update_volume(1, events & 0x2000);\r
642\r
8a091e48 643 if ((events ^ prevEvents) & 0x40) {\r
644 emu_changeFastForward(events & 0x40);\r
645 update_volume(0, 0);\r
646 reset_timing = 1;\r
647 }\r
720ee7f6 648\r
649 events &= ~prevEvents;\r
e1cd546f 650\r
651 if (PicoAHW == PAHW_PICO)\r
652 RunEventsPico(events, keys);\r
720ee7f6 653 if (events) RunEvents(events);\r
f013066e 654 if (movie_data) emu_updateMovie();\r
720ee7f6 655\r
656 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
657}\r
658\r
720ee7f6 659\r
3ef975c9 660static void updateSound(int len)\r
720ee7f6 661{\r
3ef975c9 662 if (PicoOpt&8) len<<=1;\r
720ee7f6 663\r
d9a18943 664 /* avoid writing audio when lagging behind to prevent audio lag */\r
665 if (PicoSkipFrame != 2)\r
b3972d82 666 sndout_oss_write(PsndOut, len<<1);\r
720ee7f6 667}\r
668\r
725d7f6c 669void emu_startSound(void)\r
670{\r
671 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
672 int target_fps = Pico.m.pal ? 50 : 60;\r
673\r
674 PsndOut = NULL;\r
675\r
676 // prepare sound stuff\r
677 if (currentConfig.EmuOpt & 4)\r
678 {\r
679 int snd_excess_add;\r
680 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
681 ((PicoOpt&0x200) && crashed_940)) {\r
682 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
683 }\r
684 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
685 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
686 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
b3972d82 687 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
688 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
725d7f6c 689 PicoWriteSound = updateSound;\r
690 update_volume(0, 0);\r
691 memset(sndBuffer, 0, sizeof(sndBuffer));\r
692 PsndOut = sndBuffer;\r
693 PsndRate_old = PsndRate;\r
694 PicoOpt_old = PicoOpt;\r
695 pal_old = Pico.m.pal;\r
696 }\r
697}\r
698\r
699void emu_endSound(void)\r
700{\r
701}\r
702\r
703/* wait until we can write more sound */\r
704void emu_waitSound(void)\r
705{\r
706 // don't need to do anything, writes will block by themselves\r
707}\r
708\r
720ee7f6 709\r
d9a18943 710static void SkipFrame(int do_audio)\r
720ee7f6 711{\r
d9a18943 712 PicoSkipFrame=do_audio ? 1 : 2;\r
720ee7f6 713 PicoFrame();\r
714 PicoSkipFrame=0;\r
720ee7f6 715}\r
716\r
717\r
84e21f25 718void emu_forcedFrame(int opts)\r
4ffd2858 719{\r
720 int po_old = PicoOpt;\r
13059a60 721 int eo_old = currentConfig.EmuOpt;\r
722\r
84e21f25 723 PicoOpt &= ~0x10;\r
724 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
13059a60 725 currentConfig.EmuOpt |= 0x80;\r
4ffd2858 726\r
13059a60 727 //vidResetMode();\r
728 PicoDrawSetColorFormat(1);\r
dd5fd477 729 PicoScanBegin = EmuScanBegin16;\r
13059a60 730 Pico.m.dirtyPal = 1;\r
731 PicoFrameDrawOnly();\r
4ffd2858 732\r
13059a60 733/*\r
4ffd2858 734 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 735 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 736 clearArea(1);\r
dccc2bd0 737 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 738\r
c7a4ff64 739 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
4ffd2858 740 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
741 gp2x_video_setpalette(localPal, 0x40);\r
13059a60 742*/\r
e1aa0fa7 743 PicoOpt = po_old;\r
13059a60 744 currentConfig.EmuOpt = eo_old;\r
4ffd2858 745}\r
746\r
7443ecd9 747void emu_platformDebugCat(char *str)\r
748{\r
749 // nothing\r
750}\r
751\r
720ee7f6 752static void simpleWait(int thissec, int lim_time)\r
753{\r
754 struct timeval tval;\r
755\r
756 spend_cycles(1024);\r
757 gettimeofday(&tval, 0);\r
450dab6f 758 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 759\r
450dab6f 760 while (tval.tv_usec < lim_time)\r
720ee7f6 761 {\r
762 spend_cycles(1024);\r
763 gettimeofday(&tval, 0);\r
450dab6f 764 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 765 }\r
766}\r
767\r
768\r
450dab6f 769#if 0\r
770static void tga_dump(void)\r
771{\r
772#define BYTE unsigned char\r
773#define WORD unsigned short\r
774 struct\r
775 {\r
776 BYTE IDLength; /* 00h Size of Image ID field */\r
777 BYTE ColorMapType; /* 01h Color map type */\r
778 BYTE ImageType; /* 02h Image type code */\r
779 WORD CMapStart; /* 03h Color map origin */\r
780 WORD CMapLength; /* 05h Color map length */\r
781 BYTE CMapDepth; /* 07h Depth of color map entries */\r
782 WORD XOffset; /* 08h X origin of image */\r
783 WORD YOffset; /* 0Ah Y origin of image */\r
784 WORD Width; /* 0Ch Width of image */\r
785 WORD Height; /* 0Eh Height of image */\r
786 BYTE PixelDepth; /* 10h Image pixel size */\r
787 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
788 } __attribute__((packed)) TGAHEAD;\r
789 static unsigned short oldscr[320*240];\r
790 FILE *f; char name[128]; int i;\r
791\r
792 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
793 TGAHEAD.ImageType = 2;\r
794 TGAHEAD.Width = 320;\r
795 TGAHEAD.Height = 240;\r
796 TGAHEAD.PixelDepth = 16;\r
797 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
798\r
799#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
800\r
801 for (i = 0; i < 320*240; i++)\r
802 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
803 if (i < 320*240)\r
804 {\r
805 for (i = 0; i < 320*240; i++)\r
806 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
807 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
808 f = fopen(name, "wb");\r
809 if (!f) { printf("!f\n"); exit(1); }\r
810 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
811 fwrite(oldscr, 1, 320*240*2, f);\r
812 fclose(f);\r
813 }\r
814}\r
815#endif\r
816\r
817\r
720ee7f6 818void emu_Loop(void)\r
819{\r
725d7f6c 820 static int gp2x_old_clock = 200, EmuOpt_old = 0;\r
720ee7f6 821 char fpsbuff[24]; // fps count c string\r
822 struct timeval tval; // timing\r
450dab6f 823 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
824 int frames_done, frames_shown, thissec; // actual frames\r
825 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
720ee7f6 826 char *notice = 0;\r
827\r
828 printf("entered emu_Loop()\n");\r
829\r
830 if (gp2x_old_clock != currentConfig.CPUclock) {\r
831 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
832 set_FCLK(currentConfig.CPUclock);\r
833 gp2x_old_clock = currentConfig.CPUclock;\r
834 printf(" done\n");\r
835 }\r
836\r
55a951dd 837 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
838 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 839 gp2x_old_gamma = currentConfig.gamma;\r
55a951dd 840 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 841 }\r
842\r
59d0f042 843 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
844 if (currentConfig.EmuOpt&0x2000)\r
845 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
846 else unset_LCD_custom_rate();\r
847 }\r
848\r
849 EmuOpt_old = currentConfig.EmuOpt;\r
720ee7f6 850 fpsbuff[0] = 0;\r
851\r
852 // make sure we are in correct mode\r
853 vidResetMode();\r
f013066e 854 scaling_update();\r
e5d315a5 855 Pico.m.dirtyPal = 1;\r
720ee7f6 856 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
8e708f92 857 emu_findKeyBindCombos();\r
720ee7f6 858\r
859 // pal/ntsc might have changed, reset related stuff\r
860 target_fps = Pico.m.pal ? 50 : 60;\r
861 target_frametime = 1000000/target_fps;\r
862 reset_timing = 1;\r
863\r
725d7f6c 864 emu_startSound();\r
720ee7f6 865\r
5f9922e6 866 // prepare CD buffer\r
dd5fd477 867 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
5f9922e6 868\r
59d0f042 869 // calc vsync offset to sync timing code with vsync\r
870 if (currentConfig.EmuOpt&0x2000) {\r
871 gettimeofday(&tval, 0);\r
872 gp2x_video_wait_vsync();\r
873 gettimeofday(&tval, 0);\r
874 vsync_offset = tval.tv_usec;\r
875 while (vsync_offset >= target_frametime)\r
876 vsync_offset -= target_frametime;\r
877 if (!vsync_offset) vsync_offset++;\r
878 printf("vsync_offset: %i\n", vsync_offset);\r
879 } else\r
880 vsync_offset = 0;\r
881\r
450dab6f 882 frames_done = frames_shown = thissec =\r
883 pframes_done = pframes_shown = pthissec = 0;\r
884\r
885 // loop\r
720ee7f6 886 while (engineState == PGS_Running)\r
887 {\r
888 int modes;\r
889\r
890 gettimeofday(&tval, 0);\r
0480e6c9 891 if (reset_timing) {\r
720ee7f6 892 reset_timing = 0;\r
450dab6f 893 pthissec = tval.tv_sec;\r
894 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
720ee7f6 895 }\r
896\r
897 // show notice message?\r
0480e6c9 898 if (noticeMsgTime.tv_sec)\r
899 {\r
720ee7f6 900 static int noticeMsgSum;\r
901 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
902 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
903 clearArea(0);\r
904 notice = 0;\r
905 } else {\r
906 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
907 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
908 notice = noticeMsg;\r
909 }\r
910 }\r
911\r
912 // check for mode changes\r
913 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
0480e6c9 914 if (modes != oldmodes)\r
915 {\r
720ee7f6 916 int scalex = 320;\r
917 osd_fps_x = OSD_FPS_X;\r
918 if (modes & 4) {\r
919 vidCpyM2 = vidCpyM2_40col;\r
920 } else {\r
921 if (PicoOpt & 0x100) {\r
922 vidCpyM2 = vidCpyM2_32col_nobord;\r
923 scalex = 256;\r
924 osd_fps_x = OSD_FPS_X - 64;\r
925 } else {\r
926 vidCpyM2 = vidCpyM2_32col;\r
927 }\r
928 }\r
79cad122 929 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
930 gp2x_video_RGB_setscaling(8, scalex, 224);\r
931 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
720ee7f6 932 oldmodes = modes;\r
933 clearArea(1);\r
934 }\r
935\r
936 // second changed?\r
0480e6c9 937 if (thissec != tval.tv_sec)\r
938 {\r
720ee7f6 939#ifdef BENCHMARK\r
940 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
0480e6c9 941 if (++bench == 10) {\r
720ee7f6 942 bench = 0;\r
943 bench_fps_s = bench_fps;\r
944 bf[bfp++ & 3] = bench_fps;\r
945 bench_fps = 0;\r
946 }\r
947 bench_fps += frames_shown;\r
948 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
949#else\r
55c7b464 950 if (currentConfig.EmuOpt & 2) {\r
720ee7f6 951 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
55c7b464 952 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
953 }\r
720ee7f6 954#endif\r
450dab6f 955 frames_shown = frames_done = 0;\r
720ee7f6 956 thissec = tval.tv_sec;\r
450dab6f 957 }\r
958#ifdef PFRAMES\r
959 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
960#endif\r
720ee7f6 961\r
450dab6f 962 if (pthissec != tval.tv_sec)\r
963 {\r
0480e6c9 964 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
450dab6f 965 pframes_done = pframes_shown = 0;\r
720ee7f6 966 } else {\r
967 // it is quite common for this implementation to leave 1 fame unfinished\r
968 // when second changes, but we don't want buffer to starve.\r
450dab6f 969 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
720ee7f6 970 updateKeys();\r
450dab6f 971 SkipFrame(1); pframes_done++;\r
720ee7f6 972 }\r
973\r
450dab6f 974 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
975 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
976 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
720ee7f6 977 }\r
450dab6f 978 pthissec = tval.tv_sec;\r
720ee7f6 979 }\r
59d0f042 980\r
450dab6f 981 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
982 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
983 {\r
720ee7f6 984 for(i = 0; i < currentConfig.Frameskip; i++) {\r
985 updateKeys();\r
450dab6f 986 SkipFrame(1); pframes_done++; frames_done++;\r
0480e6c9 987 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
720ee7f6 988 gettimeofday(&tval, 0);\r
450dab6f 989 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
990 if (tval.tv_usec < lim_time) { // we are too fast\r
991 simpleWait(pthissec, lim_time);\r
720ee7f6 992 }\r
993 }\r
994 lim_time += target_frametime;\r
995 }\r
450dab6f 996 }\r
997 else if (tval.tv_usec > lim_time) // auto frameskip\r
998 {\r
720ee7f6 999 // no time left for this frame - skip\r
f013066e 1000 if (tval.tv_usec - lim_time >= 300000) {\r
d032c15a 1001 /* something caused a slowdown for us (disk access? cache flush?)\r
1002 * try to recover by resetting timing... */\r
1003 reset_timing = 1;\r
1004 continue;\r
1005 }\r
720ee7f6 1006 updateKeys();\r
450dab6f 1007 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
720ee7f6 1008 continue;\r
1009 }\r
1010\r
1011 updateKeys();\r
1012 PicoFrame();\r
1013\r
1014 // check time\r
1015 gettimeofday(&tval, 0);\r
450dab6f 1016 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 1017\r
f013066e 1018 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
d032c15a 1019 reset_timing = 1;\r
1020 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 1021 {\r
59d0f042 1022 // sleep or vsync if we are still too fast\r
720ee7f6 1023 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
0480e6c9 1024 if (!reset_timing && tval.tv_usec < lim_time)\r
720ee7f6 1025 {\r
1026 // we are too fast\r
59d0f042 1027 if (vsync_offset) {\r
1028 if (lim_time - tval.tv_usec > target_frametime/2)\r
450dab6f 1029 simpleWait(pthissec, lim_time - target_frametime/4);\r
59d0f042 1030 gp2x_video_wait_vsync();\r
1031 } else {\r
450dab6f 1032 simpleWait(pthissec, lim_time);\r
59d0f042 1033 }\r
720ee7f6 1034 }\r
1035 }\r
1036\r
1037 blit(fpsbuff, notice);\r
1038\r
450dab6f 1039 pframes_done++; pframes_shown++;\r
1040 frames_done++; frames_shown++;\r
720ee7f6 1041 }\r
1042\r
8a091e48 1043 emu_changeFastForward(0);\r
5f9922e6 1044\r
dd5fd477 1045 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
5f9922e6 1046\r
720ee7f6 1047 // save SRAM\r
1048 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
6ab2f79c 1049 emu_state_cb("Writing SRAM/BRAM..");\r
720ee7f6 1050 emu_SaveLoadGame(0, 1);\r
1051 SRam.changed = 0;\r
1052 }\r
e5d315a5 1053\r
13059a60 1054 // if in 8bit mode, generate 16bit image for menu background\r
1055 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
84e21f25 1056 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
720ee7f6 1057}\r
1058\r
1059\r
1060void emu_ResetGame(void)\r
1061{\r
8d5cb10d 1062 PicoReset();\r
720ee7f6 1063 reset_timing = 1;\r
1064}\r
1065\r
PicoDrive's frontend in a lib