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accurate_sprites performance improvement, PSP is untested
[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 gp2x_old_gamma = 100;\r
f013066e 52char noticeMsg[64]; // notice msg to draw\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
58static int pico_pen_x = 320/2, pico_pen_y = 240/2, pico_inp_mode = 0;\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
f013066e 69void 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
25fced50 80}\r
81\r
720ee7f6 82void emu_Init(void)\r
83{\r
84 // make temp buffer for alt renderer\r
c7a4ff64 85 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
86 if (!PicoDraw2FB)\r
720ee7f6 87 {\r
c7a4ff64 88 printf("PicoDraw2FB == 0\n");\r
720ee7f6 89 }\r
90\r
4ffd2858 91 // make dirs for saves, cfgs, etc.\r
92 mkdir("mds", 0777);\r
93 mkdir("srm", 0777);\r
94 mkdir("brm", 0777);\r
95 mkdir("cfg", 0777);\r
96\r
720ee7f6 97 PicoInit();\r
dfa4c846 98 PicoMessage = emu_msg_cb;\r
5e2e14f2 99 PicoMCDopenTray = emu_msg_tray_open;\r
100 PicoMCDcloseTray = menu_loop_tray;\r
720ee7f6 101}\r
102\r
103\r
f013066e 104static void scaling_update(void)\r
79cad122 105{\r
106 PicoOpt &= ~0x4100;\r
107 switch (currentConfig.scaling) {\r
108 default: break; // off\r
109 case 1: // hw hor\r
110 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
111 case 3: PicoOpt |= 0x4000; break; // sw hor\r
112 }\r
113}\r
114\r
115\r
720ee7f6 116void emu_Deinit(void)\r
117{\r
118 // save SRAM\r
119 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
120 emu_SaveLoadGame(0, 1);\r
121 SRam.changed = 0;\r
122 }\r
123\r
79cad122 124 if (!(currentConfig.EmuOpt & 0x20)) {\r
0ae25549 125 config_writelrom(PicoConfigFile);\r
79cad122 126#ifndef NO_SYNC\r
0ae25549 127 sync();\r
79cad122 128#endif\r
79cad122 129 }\r
130\r
c7a4ff64 131 free(PicoDraw2FB);\r
720ee7f6 132\r
133 PicoExit();\r
720ee7f6 134\r
135 // restore gamma\r
136 if (gp2x_old_gamma != 100)\r
55a951dd 137 set_gamma(100, 0);\r
720ee7f6 138}\r
139\r
0ae25549 140void emu_prepareDefaultConfig(void)\r
141{\r
142 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
367b6f1f 143 defaultConfig.EmuOpt = 0x1d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds\r
144 defaultConfig.s_PicoOpt = 0x0f | 0x20e00; // | <- use_940, cd_pcm, cd_cdda, svp drc\r
0ae25549 145 defaultConfig.s_PsndRate = 44100;\r
146 defaultConfig.s_PicoRegion = 0; // auto\r
147 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
88bfc63d 148 defaultConfig.s_PicoCDBuffers = 0;\r
0ae25549 149 defaultConfig.Frameskip = -1; // auto\r
150 defaultConfig.CPUclock = 200;\r
151 defaultConfig.volume = 50;\r
152 defaultConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
153 defaultConfig.KeyBinds[ 4] = 1<<1;\r
154 defaultConfig.KeyBinds[ 2] = 1<<2;\r
155 defaultConfig.KeyBinds[ 6] = 1<<3;\r
156 defaultConfig.KeyBinds[14] = 1<<4;\r
157 defaultConfig.KeyBinds[13] = 1<<5;\r
158 defaultConfig.KeyBinds[12] = 1<<6;\r
159 defaultConfig.KeyBinds[ 8] = 1<<7;\r
160 defaultConfig.KeyBinds[15] = 1<<26; // switch rend\r
161 defaultConfig.KeyBinds[10] = 1<<27; // save state\r
162 defaultConfig.KeyBinds[11] = 1<<28; // load state\r
163 defaultConfig.KeyBinds[23] = 1<<29; // vol up\r
164 defaultConfig.KeyBinds[22] = 1<<30; // vol down\r
165 defaultConfig.gamma = 100;\r
166 defaultConfig.scaling = 0;\r
167}\r
168\r
f013066e 169void emu_setDefaultConfig(void)\r
170{\r
0ae25549 171 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
172 PicoOpt = currentConfig.s_PicoOpt;\r
173 PsndRate = currentConfig.s_PsndRate;\r
174 PicoRegionOverride = currentConfig.s_PicoRegion;\r
175 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
176 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
13059a60 177}\r
178\r
0805b5b4 179void osd_text(int x, int y, const char *text)\r
720ee7f6 180{\r
181 int len = strlen(text)*8;\r
182\r
183 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
daf91588 184 int *p, i, h;\r
720ee7f6 185 x &= ~3; // align x\r
186 len = (len+3) >> 2;\r
187 for (h = 0; h < 8; h++) {\r
188 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
daf91588 189 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
720ee7f6 190 }\r
f013066e 191 emu_textOut8(x, y, text);\r
720ee7f6 192 } else {\r
193 int *p, i, h;\r
194 x &= ~1; // align x\r
195 len = (len+1) >> 1;\r
196 for (h = 0; h < 8; h++) {\r
197 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
198 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
199 }\r
f013066e 200 emu_textOut16(x, y, text);\r
720ee7f6 201 }\r
202}\r
203\r
2b395ee0 204static void draw_cd_leds(void)\r
daf91588 205{\r
8dfb9fd5 206// static\r
207 int old_reg;\r
8ede36b9 208// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
daf91588 209 old_reg = Pico_mcd->s68k_regs[0];\r
210\r
211 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
212 // 8-bit modes\r
213 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
214 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
49fe50f0 215 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
216 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
217 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
218 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
219 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
220 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
daf91588 221 } else {\r
222 // 16-bit modes\r
49fe50f0 223 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
daf91588 224 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
225 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 226 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
227 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
8ede36b9 228 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
daf91588 229 }\r
230}\r
231\r
2b395ee0 232static void draw_pico_ptr(void)\r
233{\r
234 unsigned short *p = (unsigned short *)gp2x_screen;\r
235\r
236 // only if pen enabled and for 16bit modes\r
237 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
238\r
239 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
240 p += 32;\r
241\r
242 p += 320 * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
243 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
244 p[0] ^= 0xffff;\r
245 p[319] ^= 0xffff;\r
246 p[320] ^= 0xffff;\r
247 p[321] ^= 0xffff;\r
248 p[640] ^= 0xffff;\r
249}\r
250\r
dd5fd477 251static int EmuScanBegin16(unsigned int num)\r
720ee7f6 252{\r
253 if (!(Pico.video.reg[1]&8)) num += 8;\r
dd5fd477 254 DrawLineDest = (unsigned short *) gp2x_screen + 320 * num;\r
720ee7f6 255\r
256 return 0;\r
257}\r
258\r
dd5fd477 259static int EmuScanBegin8(unsigned int num)\r
720ee7f6 260{\r
261 if (!(Pico.video.reg[1]&8)) num += 8;\r
dd5fd477 262 DrawLineDest = (unsigned char *) gp2x_screen + 320 * num;\r
720ee7f6 263\r
264 return 0;\r
265}\r
266\r
e5d315a5 267int localPal[0x100];\r
720ee7f6 268static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
269\r
0805b5b4 270static void blit(const char *fps, const char *notice)\r
720ee7f6 271{\r
daf91588 272 int emu_opt = currentConfig.EmuOpt;\r
273\r
b3818d1e 274 if (PicoOpt&0x10)\r
275 {\r
720ee7f6 276 // 8bit fast renderer\r
277 if (Pico.m.dirtyPal) {\r
278 Pico.m.dirtyPal = 0;\r
279 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
280 // feed new palette to our device\r
281 gp2x_video_setpalette(localPal, 0x40);\r
282 }\r
b3818d1e 283 // a hack for VR\r
284 if (PicoRead16Hook == PicoSVPRead16)\r
285 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
286 // do actual copy\r
c7a4ff64 287 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
b3818d1e 288 }\r
289 else if (!(emu_opt&0x80))\r
290 {\r
720ee7f6 291 // 8bit accurate renderer\r
dd5fd477 292 if (Pico.m.dirtyPal)\r
293 {\r
b13a934c 294 int pallen = 0x40;\r
720ee7f6 295 Pico.m.dirtyPal = 0;\r
b13a934c 296 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
297 {\r
720ee7f6 298 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
299 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
300 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
67dfdf5f 301 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
b13a934c 302 pallen = 0x100;\r
303 }\r
304 else if (rendstatus & PDRAW_ACC_SPRITES) {\r
305 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
306 memcpy32(localPal+0x40, localPal, 0x40);\r
307 memcpy32(localPal+0x80, localPal, 0x40);\r
308 memcpy32(localPal+0xc0, localPal, 0x40);\r
309 pallen = 0x100;\r
310 }\r
311 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
720ee7f6 312 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
313 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
314 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
b13a934c 315 pallen = 0xc0;\r
316 }\r
317 else {\r
720ee7f6 318 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
720ee7f6 319 }\r
b13a934c 320 if (pallen > 0xc0) {\r
321 localPal[0xc0] = 0x0000c000;\r
322 localPal[0xd0] = 0x00c00000;\r
323 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
324 localPal[0xf0] = 0x00ffffff;\r
325 }\r
326 gp2x_video_setpalette(localPal, pallen);\r
720ee7f6 327 }\r
328 }\r
329\r
79cad122 330 if (notice || (emu_opt & 2)) {\r
331 int h = 232;\r
332 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
333 if (notice) osd_text(4, h, notice);\r
334 if (emu_opt & 2)\r
335 osd_text(osd_fps_x, h, fps);\r
336 }\r
dd5fd477 337 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
2b395ee0 338 draw_cd_leds();\r
339 if (PicoAHW & PAHW_PICO)\r
340 draw_pico_ptr();\r
720ee7f6 341\r
342 //gp2x_video_wait_vsync();\r
343 gp2x_video_flip();\r
344\r
345 if (!(PicoOpt&0x10)) {\r
346 if (!(Pico.video.reg[1]&8)) {\r
347 if (currentConfig.EmuOpt&0x80) {\r
348 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
349 } else {\r
350 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
351 }\r
352 } else {\r
353 DrawLineDest = gp2x_screen;\r
354 }\r
355 }\r
356}\r
357\r
358\r
359// clears whole screen or just the notice area (in all buffers)\r
360static void clearArea(int full)\r
361{\r
daf91588 362 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
363 // 8-bit renderers\r
364 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
365 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
366 } else {\r
720ee7f6 367 // 16bit accurate renderer\r
368 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
369 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 370 }\r
371}\r
372\r
373\r
374static void vidResetMode(void)\r
375{\r
376 if (PicoOpt&0x10) {\r
720ee7f6 377 gp2x_video_changemode(8);\r
720ee7f6 378 } else if (currentConfig.EmuOpt&0x80) {\r
13059a60 379 gp2x_video_changemode(16);\r
720ee7f6 380 PicoDrawSetColorFormat(1);\r
dd5fd477 381 PicoScanBegin = EmuScanBegin16;\r
720ee7f6 382 } else {\r
daf91588 383 gp2x_video_changemode(8);\r
384 PicoDrawSetColorFormat(2);\r
dd5fd477 385 PicoScanBegin = EmuScanBegin8;\r
daf91588 386 }\r
387 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
388 // setup pal for 8-bit modes\r
389 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
390 localPal[0xd0] = 0x00c00000;\r
720ee7f6 391 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
392 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 393 gp2x_video_setpalette(localPal, 0x100);\r
394 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
395 gp2x_video_flip();\r
720ee7f6 396 }\r
397 Pico.m.dirtyPal = 1;\r
398 // reset scaling\r
79cad122 399 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
400 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
401 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
720ee7f6 402}\r
403\r
404\r
dfa4c846 405static void emu_msg_cb(const char *msg)\r
406{\r
407 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
408 // 8-bit renderers\r
409 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
410 osd_text(4, 232, msg);\r
411 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
412 } else {\r
413 // 16bit accurate renderer\r
414 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
415 osd_text(4, 232, msg);\r
416 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
417 }\r
418 gettimeofday(&noticeMsgTime, 0);\r
419 noticeMsgTime.tv_sec -= 2;\r
e5589947 420\r
421 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
422 reset_timing = 1;\r
dfa4c846 423}\r
424\r
1078e544 425static void emu_state_cb(const char *str)\r
426{\r
427 clearArea(0);\r
428 blit("", str);\r
429}\r
430\r
5e2e14f2 431static void emu_msg_tray_open(void)\r
432{\r
433 strcpy(noticeMsg, "CD tray opened");\r
434 gettimeofday(&noticeMsgTime, 0);\r
435}\r
436\r
e1cd546f 437static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)\r
438{\r
439 if (events & (1 << 3)) {\r
440 pico_inp_mode++;\r
441 if (pico_inp_mode > 2) pico_inp_mode = 0;\r
442 switch (pico_inp_mode) {\r
e1cd546f 443 case 2: strcpy(noticeMsg, "Input: Pen on Pad "); break;\r
2b395ee0 444 case 1: strcpy(noticeMsg, "Input: Pen on Storyware"); break;\r
445 case 0: strcpy(noticeMsg, "Input: Joytick ");\r
446 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
447 break;\r
e1cd546f 448 }\r
449 gettimeofday(&noticeMsgTime, 0);\r
450 }\r
451 if (events & (1 << 4)) {\r
e10925be 452 PicoPicohw.page--;\r
453 if (PicoPicohw.page < 0) PicoPicohw.page = 0;\r
454 sprintf(noticeMsg, "Page %i ", PicoPicohw.page);\r
e1cd546f 455 gettimeofday(&noticeMsgTime, 0);\r
456 }\r
457 if (events & (1 << 5)) {\r
e10925be 458 PicoPicohw.page++;\r
459 if (PicoPicohw.page > 6) PicoPicohw.page = 6;\r
460 sprintf(noticeMsg, "Page %i ", PicoPicohw.page);\r
e1cd546f 461 gettimeofday(&noticeMsgTime, 0);\r
462 }\r
463 if (pico_inp_mode != 0) {\r
464 PicoPad[0] &= ~0x0f; // release UDLR\r
2b395ee0 465 if (gp2x_keys & GP2X_UP) { pico_pen_y--; if (pico_pen_y < 0) pico_pen_y = 0; }\r
466 if (gp2x_keys & GP2X_DOWN) { pico_pen_y++; if (pico_pen_y > 239-PICO_PEN_ADJUST_Y) pico_pen_y = 239-PICO_PEN_ADJUST_Y; }\r
467 if (gp2x_keys & GP2X_LEFT) { pico_pen_x--; if (pico_pen_x < 0) pico_pen_x = 0; }\r
468 if (gp2x_keys & GP2X_RIGHT) {\r
469 int lim = (Pico.video.reg[12]&1) ? 319 : 255;\r
470 pico_pen_x++;\r
471 if (pico_pen_x > lim-PICO_PEN_ADJUST_X)\r
472 pico_pen_x = lim-PICO_PEN_ADJUST_X;\r
473 }\r
474 PicoPicohw.pen_pos[0] = pico_pen_x;\r
475 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
476 PicoPicohw.pen_pos[0] += 0x3c;\r
e10925be 477 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
e1cd546f 478 }\r
479}\r
480\r
0480e6c9 481static void update_volume(int has_changed, int is_up)\r
482{\r
483 static int prev_frame = 0, wait_frames = 0;\r
484 int vol = currentConfig.volume;\r
485\r
486 if (has_changed)\r
487 {\r
488 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
489 wait_frames++;\r
490 else {\r
491 if (is_up) {\r
492 if (vol < 99) vol++;\r
493 } else {\r
494 if (vol > 0) vol--;\r
495 }\r
496 wait_frames = 0;\r
497 gp2x_sound_volume(vol, vol);\r
498 currentConfig.volume = vol;\r
499 }\r
500 sprintf(noticeMsg, "VOL: %02i", vol);\r
501 gettimeofday(&noticeMsgTime, 0);\r
502 prev_frame = Pico.m.frame_count;\r
503 }\r
504\r
505 // set the right mixer func\r
506 if (!(PicoOpt&8)) return; // just use defaults for mono\r
507 if (vol >= 5)\r
508 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
509 else {\r
510 mix_32_to_16l_level = 5 - vol;\r
511 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
512 }\r
513}\r
514\r
515static void change_fast_forward(int set_on)\r
516{\r
517 static void *set_PsndOut = NULL;\r
518 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
519\r
520 if (set_on && !is_on) {\r
521 set_PsndOut = PsndOut;\r
522 set_Frameskip = currentConfig.Frameskip;\r
523 set_EmuOpt = currentConfig.EmuOpt;\r
524 PsndOut = NULL;\r
525 currentConfig.Frameskip = 8;\r
526 currentConfig.EmuOpt &= ~4;\r
527 is_on = 1;\r
528 }\r
529 else if (!set_on && is_on) {\r
530 PsndOut = set_PsndOut;\r
531 currentConfig.Frameskip = set_Frameskip;\r
532 currentConfig.EmuOpt = set_EmuOpt;\r
533 PsndRerate(1);\r
534 update_volume(0, 0);\r
535 reset_timing = 1;\r
536 is_on = 0;\r
537 }\r
538}\r
539\r
720ee7f6 540static void RunEvents(unsigned int which)\r
541{\r
0480e6c9 542 if (which & 0x1800) // save or load (but not both)\r
543 {\r
720ee7f6 544 int do_it = 1;\r
f013066e 545 if ( emu_checkSaveFile(state_slot) &&\r
46ede6a6 546 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
547 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
720ee7f6 548 unsigned long keys;\r
46ede6a6 549 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
30d5518a 550 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
720ee7f6 551 usleep(50*1024);\r
552 if (keys & GP2X_X) do_it = 0;\r
30d5518a 553 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release\r
554 usleep(50*1024);\r
720ee7f6 555 clearArea(0);\r
556 }\r
557 if (do_it) {\r
0805b5b4 558 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
1078e544 559 PicoStateProgressCB = emu_state_cb;\r
560 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
0805b5b4 561 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
1078e544 562 PicoStateProgressCB = NULL;\r
720ee7f6 563 }\r
564\r
565 reset_timing = 1;\r
566 }\r
0480e6c9 567 if (which & 0x0400) // switch renderer\r
568 {\r
720ee7f6 569 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
570 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
571 else currentConfig.EmuOpt &= ~0x80;\r
572\r
573 vidResetMode();\r
574\r
575 if (PicoOpt&0x10) {\r
576 strcpy(noticeMsg, " 8bit fast renderer");\r
577 } else if (currentConfig.EmuOpt&0x80) {\r
578 strcpy(noticeMsg, "16bit accurate renderer");\r
579 } else {\r
580 strcpy(noticeMsg, " 8bit accurate renderer");\r
581 }\r
582\r
583 gettimeofday(&noticeMsgTime, 0);\r
584 }\r
0480e6c9 585 if (which & 0x0300)\r
586 {\r
720ee7f6 587 if(which&0x0200) {\r
588 state_slot -= 1;\r
589 if(state_slot < 0) state_slot = 9;\r
590 } else {\r
591 state_slot += 1;\r
592 if(state_slot > 9) state_slot = 0;\r
593 }\r
f013066e 594 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
720ee7f6 595 gettimeofday(&noticeMsgTime, 0);\r
596 }\r
0480e6c9 597 if (which & 0x0080) {\r
720ee7f6 598 engineState = PGS_Menu;\r
599 }\r
600}\r
601\r
720ee7f6 602static void updateKeys(void)\r
603{\r
e1cd546f 604 unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;\r
605 static unsigned int prevEvents = 0;\r
720ee7f6 606 int joy, i;\r
607\r
608 keys = gp2x_joystick_read(0);\r
609 if (keys & GP2X_SELECT) {\r
610 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
611 // wait until select is released, so menu would not resume game\r
612 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
613 }\r
614\r
615 keys &= CONFIGURABLE_KEYS;\r
e1cd546f 616 keys2 = keys;\r
720ee7f6 617\r
618 for (i = 0; i < 32; i++)\r
619 {\r
e1cd546f 620 if (keys2 & (1 << i))\r
8e708f92 621 {\r
720ee7f6 622 int pl, acts = currentConfig.KeyBinds[i];\r
623 if (!acts) continue;\r
624 pl = (acts >> 16) & 1;\r
8e708f92 625 if (kb_combo_keys & (1 << i))\r
626 {\r
450dab6f 627 int u = i+1, acts_c = acts & kb_combo_acts;\r
720ee7f6 628 // let's try to find the other one\r
8e708f92 629 if (acts_c) {\r
450dab6f 630 for (; u < 32; u++)\r
e1cd546f 631 if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {\r
8e708f92 632 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];\r
e1cd546f 633 keys2 &= ~((1 << i) | (1 << u));\r
720ee7f6 634 break;\r
635 }\r
8e708f92 636 }\r
720ee7f6 637 // add non-combo actions if combo ones were not found\r
638 if (!acts_c || u == 32)\r
8e708f92 639 allActions[pl] |= acts & ~kb_combo_acts;\r
720ee7f6 640 } else {\r
641 allActions[pl] |= acts;\r
642 }\r
643 }\r
644 }\r
645\r
646 // add joy inputs\r
647 if (num_of_joys > 0)\r
648 {\r
649 gp2x_usbjoy_update();\r
650 for (joy = 0; joy < num_of_joys; joy++) {\r
e1cd546f 651 int btns = gp2x_usbjoy_check2(joy);\r
720ee7f6 652 for (i = 0; i < 32; i++) {\r
e1cd546f 653 if (btns & (1 << i)) {\r
720ee7f6 654 int acts = currentConfig.JoyBinds[joy][i];\r
655 int pl = (acts >> 16) & 1;\r
656 allActions[pl] |= acts;\r
657 }\r
658 }\r
659 }\r
660 }\r
661\r
25fced50 662 PicoPad[0] = (unsigned short) allActions[0];\r
663 PicoPad[1] = (unsigned short) allActions[1];\r
720ee7f6 664\r
665 events = (allActions[0] | allActions[1]) >> 16;\r
666\r
667 // volume is treated in special way and triggered every frame\r
0480e6c9 668 if (events & 0x6000)\r
669 update_volume(1, events & 0x2000);\r
670\r
671 if ((events ^ prevEvents) & 0x40)\r
672 change_fast_forward(events & 0x40);\r
720ee7f6 673\r
674 events &= ~prevEvents;\r
e1cd546f 675\r
676 if (PicoAHW == PAHW_PICO)\r
677 RunEventsPico(events, keys);\r
678\r
720ee7f6 679 if (events) RunEvents(events);\r
f013066e 680 if (movie_data) emu_updateMovie();\r
720ee7f6 681\r
682 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
683}\r
684\r
720ee7f6 685\r
3ef975c9 686static void updateSound(int len)\r
720ee7f6 687{\r
3ef975c9 688 if (PicoOpt&8) len<<=1;\r
720ee7f6 689\r
d9a18943 690 /* avoid writing audio when lagging behind to prevent audio lag */\r
691 if (PicoSkipFrame != 2)\r
692 gp2x_sound_write(PsndOut, len<<1);\r
720ee7f6 693}\r
694\r
695\r
d9a18943 696static void SkipFrame(int do_audio)\r
720ee7f6 697{\r
d9a18943 698 PicoSkipFrame=do_audio ? 1 : 2;\r
720ee7f6 699 PicoFrame();\r
700 PicoSkipFrame=0;\r
720ee7f6 701}\r
702\r
703\r
f013066e 704void emu_forcedFrame(void)\r
4ffd2858 705{\r
706 int po_old = PicoOpt;\r
13059a60 707 int eo_old = currentConfig.EmuOpt;\r
708\r
709 PicoOpt &= ~0x0010;\r
710 PicoOpt |= 0x4080; // soft_scale | acc_sprites\r
711 currentConfig.EmuOpt |= 0x80;\r
4ffd2858 712\r
13059a60 713 //vidResetMode();\r
714 PicoDrawSetColorFormat(1);\r
dd5fd477 715 PicoScanBegin = EmuScanBegin16;\r
13059a60 716 Pico.m.dirtyPal = 1;\r
717 PicoFrameDrawOnly();\r
4ffd2858 718\r
13059a60 719/*\r
4ffd2858 720 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 721 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 722 clearArea(1);\r
dccc2bd0 723 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 724\r
c7a4ff64 725 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
4ffd2858 726 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
727 gp2x_video_setpalette(localPal, 0x40);\r
13059a60 728*/\r
e1aa0fa7 729 PicoOpt = po_old;\r
13059a60 730 currentConfig.EmuOpt = eo_old;\r
4ffd2858 731}\r
732\r
720ee7f6 733static void simpleWait(int thissec, int lim_time)\r
734{\r
735 struct timeval tval;\r
736\r
737 spend_cycles(1024);\r
738 gettimeofday(&tval, 0);\r
450dab6f 739 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 740\r
450dab6f 741 while (tval.tv_usec < lim_time)\r
720ee7f6 742 {\r
743 spend_cycles(1024);\r
744 gettimeofday(&tval, 0);\r
450dab6f 745 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 746 }\r
747}\r
748\r
749\r
450dab6f 750#if 0\r
751static void tga_dump(void)\r
752{\r
753#define BYTE unsigned char\r
754#define WORD unsigned short\r
755 struct\r
756 {\r
757 BYTE IDLength; /* 00h Size of Image ID field */\r
758 BYTE ColorMapType; /* 01h Color map type */\r
759 BYTE ImageType; /* 02h Image type code */\r
760 WORD CMapStart; /* 03h Color map origin */\r
761 WORD CMapLength; /* 05h Color map length */\r
762 BYTE CMapDepth; /* 07h Depth of color map entries */\r
763 WORD XOffset; /* 08h X origin of image */\r
764 WORD YOffset; /* 0Ah Y origin of image */\r
765 WORD Width; /* 0Ch Width of image */\r
766 WORD Height; /* 0Eh Height of image */\r
767 BYTE PixelDepth; /* 10h Image pixel size */\r
768 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
769 } __attribute__((packed)) TGAHEAD;\r
770 static unsigned short oldscr[320*240];\r
771 FILE *f; char name[128]; int i;\r
772\r
773 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
774 TGAHEAD.ImageType = 2;\r
775 TGAHEAD.Width = 320;\r
776 TGAHEAD.Height = 240;\r
777 TGAHEAD.PixelDepth = 16;\r
778 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
779\r
780#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
781\r
782 for (i = 0; i < 320*240; i++)\r
783 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
784 if (i < 320*240)\r
785 {\r
786 for (i = 0; i < 320*240; i++)\r
787 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
788 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
789 f = fopen(name, "wb");\r
790 if (!f) { printf("!f\n"); exit(1); }\r
791 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
792 fwrite(oldscr, 1, 320*240*2, f);\r
793 fclose(f);\r
794 }\r
795}\r
796#endif\r
797\r
798\r
720ee7f6 799void emu_Loop(void)\r
800{\r
801 static int gp2x_old_clock = 200;\r
65345ecc 802 static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;\r
720ee7f6 803 char fpsbuff[24]; // fps count c string\r
804 struct timeval tval; // timing\r
450dab6f 805 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
806 int frames_done, frames_shown, thissec; // actual frames\r
807 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
720ee7f6 808 char *notice = 0;\r
809\r
810 printf("entered emu_Loop()\n");\r
811\r
812 if (gp2x_old_clock != currentConfig.CPUclock) {\r
813 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
814 set_FCLK(currentConfig.CPUclock);\r
815 gp2x_old_clock = currentConfig.CPUclock;\r
816 printf(" done\n");\r
817 }\r
818\r
55a951dd 819 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
820 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 821 gp2x_old_gamma = currentConfig.gamma;\r
55a951dd 822 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 823 }\r
824\r
59d0f042 825 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
826 if (currentConfig.EmuOpt&0x2000)\r
827 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
828 else unset_LCD_custom_rate();\r
829 }\r
830\r
831 EmuOpt_old = currentConfig.EmuOpt;\r
720ee7f6 832 fpsbuff[0] = 0;\r
833\r
834 // make sure we are in correct mode\r
835 vidResetMode();\r
f013066e 836 scaling_update();\r
e5d315a5 837 Pico.m.dirtyPal = 1;\r
720ee7f6 838 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
8e708f92 839 emu_findKeyBindCombos();\r
720ee7f6 840\r
841 // pal/ntsc might have changed, reset related stuff\r
842 target_fps = Pico.m.pal ? 50 : 60;\r
843 target_frametime = 1000000/target_fps;\r
844 reset_timing = 1;\r
845\r
846 // prepare sound stuff\r
0480e6c9 847 if (currentConfig.EmuOpt & 4)\r
848 {\r
3ef975c9 849 int snd_excess_add;\r
4327ec37 850 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
851 ((PicoOpt&0x200) && crashed_940)) {\r
c4f2f371 852 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
720ee7f6 853 }\r
720ee7f6 854 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
4327ec37 855 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
856 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
720ee7f6 857 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
858 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
859 PicoWriteSound = updateSound;\r
0480e6c9 860 update_volume(0, 0);\r
3ef975c9 861 memset(sndBuffer, 0, sizeof(sndBuffer));\r
862 PsndOut = sndBuffer;\r
720ee7f6 863 PsndRate_old = PsndRate;\r
720ee7f6 864 PicoOpt_old = PicoOpt;\r
865 pal_old = Pico.m.pal;\r
866 } else {\r
0480e6c9 867 PsndOut = NULL;\r
720ee7f6 868 }\r
869\r
5f9922e6 870 // prepare CD buffer\r
dd5fd477 871 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
5f9922e6 872\r
59d0f042 873 // calc vsync offset to sync timing code with vsync\r
874 if (currentConfig.EmuOpt&0x2000) {\r
875 gettimeofday(&tval, 0);\r
876 gp2x_video_wait_vsync();\r
877 gettimeofday(&tval, 0);\r
878 vsync_offset = tval.tv_usec;\r
879 while (vsync_offset >= target_frametime)\r
880 vsync_offset -= target_frametime;\r
881 if (!vsync_offset) vsync_offset++;\r
882 printf("vsync_offset: %i\n", vsync_offset);\r
883 } else\r
884 vsync_offset = 0;\r
885\r
450dab6f 886 frames_done = frames_shown = thissec =\r
887 pframes_done = pframes_shown = pthissec = 0;\r
888\r
889 // loop\r
720ee7f6 890 while (engineState == PGS_Running)\r
891 {\r
892 int modes;\r
893\r
894 gettimeofday(&tval, 0);\r
0480e6c9 895 if (reset_timing) {\r
720ee7f6 896 reset_timing = 0;\r
450dab6f 897 pthissec = tval.tv_sec;\r
898 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
720ee7f6 899 }\r
900\r
901 // show notice message?\r
0480e6c9 902 if (noticeMsgTime.tv_sec)\r
903 {\r
720ee7f6 904 static int noticeMsgSum;\r
905 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
906 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
907 clearArea(0);\r
908 notice = 0;\r
909 } else {\r
910 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
911 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
912 notice = noticeMsg;\r
913 }\r
914 }\r
915\r
916 // check for mode changes\r
917 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
0480e6c9 918 if (modes != oldmodes)\r
919 {\r
720ee7f6 920 int scalex = 320;\r
921 osd_fps_x = OSD_FPS_X;\r
922 if (modes & 4) {\r
923 vidCpyM2 = vidCpyM2_40col;\r
924 } else {\r
925 if (PicoOpt & 0x100) {\r
926 vidCpyM2 = vidCpyM2_32col_nobord;\r
927 scalex = 256;\r
928 osd_fps_x = OSD_FPS_X - 64;\r
929 } else {\r
930 vidCpyM2 = vidCpyM2_32col;\r
931 }\r
932 }\r
79cad122 933 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
934 gp2x_video_RGB_setscaling(8, scalex, 224);\r
935 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
720ee7f6 936 oldmodes = modes;\r
937 clearArea(1);\r
938 }\r
939\r
940 // second changed?\r
0480e6c9 941 if (thissec != tval.tv_sec)\r
942 {\r
720ee7f6 943#ifdef BENCHMARK\r
944 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
0480e6c9 945 if (++bench == 10) {\r
720ee7f6 946 bench = 0;\r
947 bench_fps_s = bench_fps;\r
948 bf[bfp++ & 3] = bench_fps;\r
949 bench_fps = 0;\r
950 }\r
951 bench_fps += frames_shown;\r
952 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
953#else\r
55c7b464 954 if (currentConfig.EmuOpt & 2) {\r
720ee7f6 955 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
55c7b464 956 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
957 }\r
720ee7f6 958#endif\r
450dab6f 959 frames_shown = frames_done = 0;\r
720ee7f6 960 thissec = tval.tv_sec;\r
450dab6f 961 }\r
962#ifdef PFRAMES\r
963 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
964#endif\r
720ee7f6 965\r
450dab6f 966 if (pthissec != tval.tv_sec)\r
967 {\r
0480e6c9 968 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
450dab6f 969 pframes_done = pframes_shown = 0;\r
720ee7f6 970 } else {\r
971 // it is quite common for this implementation to leave 1 fame unfinished\r
972 // when second changes, but we don't want buffer to starve.\r
450dab6f 973 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
720ee7f6 974 updateKeys();\r
450dab6f 975 SkipFrame(1); pframes_done++;\r
720ee7f6 976 }\r
977\r
450dab6f 978 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
979 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
980 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
720ee7f6 981 }\r
450dab6f 982 pthissec = tval.tv_sec;\r
720ee7f6 983 }\r
59d0f042 984\r
450dab6f 985 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
986 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
987 {\r
720ee7f6 988 for(i = 0; i < currentConfig.Frameskip; i++) {\r
989 updateKeys();\r
450dab6f 990 SkipFrame(1); pframes_done++; frames_done++;\r
0480e6c9 991 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
720ee7f6 992 gettimeofday(&tval, 0);\r
450dab6f 993 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
994 if (tval.tv_usec < lim_time) { // we are too fast\r
995 simpleWait(pthissec, lim_time);\r
720ee7f6 996 }\r
997 }\r
998 lim_time += target_frametime;\r
999 }\r
450dab6f 1000 }\r
1001 else if (tval.tv_usec > lim_time) // auto frameskip\r
1002 {\r
720ee7f6 1003 // no time left for this frame - skip\r
f013066e 1004 if (tval.tv_usec - lim_time >= 300000) {\r
d032c15a 1005 /* something caused a slowdown for us (disk access? cache flush?)\r
1006 * try to recover by resetting timing... */\r
1007 reset_timing = 1;\r
1008 continue;\r
1009 }\r
720ee7f6 1010 updateKeys();\r
450dab6f 1011 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
720ee7f6 1012 continue;\r
1013 }\r
1014\r
1015 updateKeys();\r
1016 PicoFrame();\r
1017\r
1018 // check time\r
1019 gettimeofday(&tval, 0);\r
450dab6f 1020 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 1021\r
f013066e 1022 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
d032c15a 1023 reset_timing = 1;\r
1024 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 1025 {\r
59d0f042 1026 // sleep or vsync if we are still too fast\r
720ee7f6 1027 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
0480e6c9 1028 if (!reset_timing && tval.tv_usec < lim_time)\r
720ee7f6 1029 {\r
1030 // we are too fast\r
59d0f042 1031 if (vsync_offset) {\r
1032 if (lim_time - tval.tv_usec > target_frametime/2)\r
450dab6f 1033 simpleWait(pthissec, lim_time - target_frametime/4);\r
59d0f042 1034 gp2x_video_wait_vsync();\r
1035 } else {\r
450dab6f 1036 simpleWait(pthissec, lim_time);\r
59d0f042 1037 }\r
720ee7f6 1038 }\r
1039 }\r
1040\r
1041 blit(fpsbuff, notice);\r
1042\r
450dab6f 1043 pframes_done++; pframes_shown++;\r
1044 frames_done++; frames_shown++;\r
720ee7f6 1045 }\r
1046\r
0480e6c9 1047 change_fast_forward(0);\r
5f9922e6 1048\r
dd5fd477 1049 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
5f9922e6 1050\r
720ee7f6 1051 // save SRAM\r
1052 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
6ab2f79c 1053 emu_state_cb("Writing SRAM/BRAM..");\r
720ee7f6 1054 emu_SaveLoadGame(0, 1);\r
1055 SRam.changed = 0;\r
1056 }\r
e5d315a5 1057\r
13059a60 1058 // if in 8bit mode, generate 16bit image for menu background\r
1059 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
f013066e 1060 emu_forcedFrame();\r
720ee7f6 1061}\r
1062\r
1063\r
1064void emu_ResetGame(void)\r
1065{\r
8d5cb10d 1066 PicoReset();\r
720ee7f6 1067 reset_timing = 1;\r
1068}\r
1069\r
PicoDrive's frontend in a lib