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linux port fixed; some cleanups
[libpicofe.git] / gp2x / emu.c
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046c4540 1// (c) Copyright 2006-2009 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 <stdarg.h>\r
12\r
fa5e045b 13#include "plat_gp2x.h"\r
d572cbad 14#include "soc.h"\r
046c4540 15#include "../common/plat.h"\r
82abf46f 16#include "../common/menu.h"\r
c7a4ff64 17#include "../common/arm_utils.h"\r
18#include "../common/fonts.h"\r
f013066e 19#include "../common/emu.h"\r
0ae25549 20#include "../common/config.h"\r
bc0420cd 21#include "../common/input.h"\r
b3972d82 22#include "../linux/sndout_oss.h"\r
049a6b3e 23#include "version.h"\r
720ee7f6 24\r
f11bad75 25#include <pico/pico_int.h>\r
26#include <pico/patch.h>\r
27#include <pico/sound/mix.h>\r
70d2ecc5 28#include <zlib/zlib.h>\r
720ee7f6 29\r
4327ec37 30//#define PFRAMES\r
720ee7f6 31\r
32#ifdef BENCHMARK\r
33#define OSD_FPS_X 220\r
34#else\r
35#define OSD_FPS_X 260\r
36#endif\r
37\r
720ee7f6 38\r
720ee7f6 39extern int crashed_940;\r
40\r
6245d5a0 41static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
720ee7f6 42static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
8f1b51ef 43static int osd_fps_x;\r
720ee7f6 44static int gp2x_old_gamma = 100;\r
c7a4ff64 45unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
8f1b51ef 46int reset_timing = 0;\r
720ee7f6 47\r
2b395ee0 48#define PICO_PEN_ADJUST_X 4\r
49#define PICO_PEN_ADJUST_Y 2\r
8a091e48 50static int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
e1cd546f 51\r
f013066e 52static void emu_msg_cb(const char *msg);\r
53static void emu_msg_tray_open(void);\r
720ee7f6 54\r
720ee7f6 55\r
f013066e 56void emu_noticeMsgUpdated(void)\r
720ee7f6 57{\r
f013066e 58 gettimeofday(&noticeMsgTime, 0);\r
720ee7f6 59}\r
60\r
36f6fd5a 61int emu_getMainDir(char *dst, int len)\r
25fced50 62{\r
f013066e 63 extern char **g_argv;\r
64 int j;\r
25fced50 65\r
f013066e 66 strncpy(dst, g_argv[0], len);\r
67 len -= 32; // reserve\r
68 if (len < 0) len = 0;\r
69 dst[len] = 0;\r
70 for (j = strlen(dst); j > 0; j--)\r
71 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
36f6fd5a 72\r
73 return j + 1;\r
25fced50 74}\r
75\r
720ee7f6 76void emu_Init(void)\r
77{\r
78 // make temp buffer for alt renderer\r
c7a4ff64 79 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
80 if (!PicoDraw2FB)\r
720ee7f6 81 {\r
c7a4ff64 82 printf("PicoDraw2FB == 0\n");\r
720ee7f6 83 }\r
84\r
4ffd2858 85 // make dirs for saves, cfgs, etc.\r
86 mkdir("mds", 0777);\r
87 mkdir("srm", 0777);\r
88 mkdir("brm", 0777);\r
89 mkdir("cfg", 0777);\r
90\r
720ee7f6 91 PicoInit();\r
dfa4c846 92 PicoMessage = emu_msg_cb;\r
5e2e14f2 93 PicoMCDopenTray = emu_msg_tray_open;\r
94 PicoMCDcloseTray = menu_loop_tray;\r
720ee7f6 95}\r
96\r
97\r
f013066e 98static void scaling_update(void)\r
79cad122 99{\r
fa8d1331 100 PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);\r
79cad122 101 switch (currentConfig.scaling) {\r
fa8d1331 102 default:break;\r
103 case EOPT_SCALE_HW_H:\r
104 case EOPT_SCALE_HW_HV:\r
105 PicoOpt |= POPT_DIS_32C_BORDER;\r
106 break;\r
107 case EOPT_SCALE_SW_H:\r
108 PicoOpt |= POPT_EN_SOFTSCALE;\r
109 break;\r
79cad122 110 }\r
111}\r
112\r
113\r
720ee7f6 114void emu_Deinit(void)\r
115{\r
116 // save SRAM\r
117 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
118 emu_SaveLoadGame(0, 1);\r
119 SRam.changed = 0;\r
120 }\r
121\r
7f3b59cf 122 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG))\r
123 emu_writelrom();\r
79cad122 124\r
c7a4ff64 125 free(PicoDraw2FB);\r
720ee7f6 126\r
127 PicoExit();\r
720ee7f6 128\r
129 // restore gamma\r
130 if (gp2x_old_gamma != 100)\r
fa5e045b 131 set_lcd_gamma(100, 0);\r
720ee7f6 132}\r
133\r
0ae25549 134void emu_prepareDefaultConfig(void)\r
135{\r
fa8d1331 136 gp2x_soc_t soc;\r
137\r
0ae25549 138 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
fa8d1331 139 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS | 0x600; // | <- confirm_save, cd_leds\r
140 defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;\r
0ae25549 141 defaultConfig.s_PsndRate = 44100;\r
142 defaultConfig.s_PicoRegion = 0; // auto\r
143 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
88bfc63d 144 defaultConfig.s_PicoCDBuffers = 0;\r
0ae25549 145 defaultConfig.Frameskip = -1; // auto\r
fa8d1331 146 defaultConfig.CPUclock = default_cpu_clock;\r
0ae25549 147 defaultConfig.volume = 50;\r
0ae25549 148 defaultConfig.gamma = 100;\r
149 defaultConfig.scaling = 0;\r
6589c840 150 defaultConfig.turbo_rate = 15;\r
fa8d1331 151\r
152 soc = soc_detect();\r
153 if (soc == SOCID_MMSP2)\r
154 defaultConfig.s_PicoOpt |= POPT_EXT_FM;\r
0ae25549 155}\r
156\r
046c4540 157static void osd_text(int x, int y, const char *text)\r
720ee7f6 158{\r
159 int len = strlen(text)*8;\r
e31266dd 160 int *p, i, h, offs;\r
720ee7f6 161\r
162 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
720ee7f6 163 len = (len+3) >> 2;\r
164 for (h = 0; h < 8; h++) {\r
e31266dd 165 offs = (x + g_screen_width * (y+h)) & ~3;\r
166 p = (int *) ((char *)g_screen_ptr + offs);\r
167 for (i = len; i; i--, p++)\r
168 *p = 0xe0e0e0e0;\r
720ee7f6 169 }\r
f013066e 170 emu_textOut8(x, y, text);\r
720ee7f6 171 } else {\r
720ee7f6 172 len = (len+1) >> 1;\r
173 for (h = 0; h < 8; h++) {\r
e31266dd 174 offs = (x + g_screen_width * (y+h)) & ~1;\r
175 p = (int *) ((short *)g_screen_ptr + offs);\r
176 for (i = len; i; i--, p++)\r
177 *p = (*p >> 2) & 0x39e7;\r
720ee7f6 178 }\r
f013066e 179 emu_textOut16(x, y, text);\r
720ee7f6 180 }\r
181}\r
182\r
2b395ee0 183static void draw_cd_leds(void)\r
daf91588 184{\r
8dfb9fd5 185// static\r
186 int old_reg;\r
8ede36b9 187// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
daf91588 188 old_reg = Pico_mcd->s68k_regs[0];\r
189\r
190 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
191 // 8-bit modes\r
192 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
193 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
e31266dd 194 *(unsigned int *)((char *)g_screen_ptr + 320*2+ 4) =\r
195 *(unsigned int *)((char *)g_screen_ptr + 320*3+ 4) =\r
196 *(unsigned int *)((char *)g_screen_ptr + 320*4+ 4) = col_g;\r
197 *(unsigned int *)((char *)g_screen_ptr + 320*2+12) =\r
198 *(unsigned int *)((char *)g_screen_ptr + 320*3+12) =\r
199 *(unsigned int *)((char *)g_screen_ptr + 320*4+12) = col_r;\r
daf91588 200 } else {\r
201 // 16-bit modes\r
e31266dd 202 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + 320*2+4);\r
daf91588 203 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
204 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 205 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
206 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
8ede36b9 207 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
daf91588 208 }\r
209}\r
210\r
2b395ee0 211static void draw_pico_ptr(void)\r
212{\r
e31266dd 213 unsigned short *p = (unsigned short *)g_screen_ptr;\r
2b395ee0 214\r
215 // only if pen enabled and for 16bit modes\r
216 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
217\r
218 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
219 p += 32;\r
220\r
221 p += 320 * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
222 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
223 p[0] ^= 0xffff;\r
224 p[319] ^= 0xffff;\r
225 p[320] ^= 0xffff;\r
226 p[321] ^= 0xffff;\r
227 p[640] ^= 0xffff;\r
228}\r
229\r
dd5fd477 230static int EmuScanBegin16(unsigned int num)\r
720ee7f6 231{\r
232 if (!(Pico.video.reg[1]&8)) num += 8;\r
e31266dd 233 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;\r
720ee7f6 234\r
235 return 0;\r
236}\r
237\r
dd5fd477 238static int EmuScanBegin8(unsigned int num)\r
720ee7f6 239{\r
240 if (!(Pico.video.reg[1]&8)) num += 8;\r
e31266dd 241 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;\r
720ee7f6 242\r
243 return 0;\r
244}\r
245\r
e5d315a5 246int localPal[0x100];\r
720ee7f6 247static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
248\r
0805b5b4 249static void blit(const char *fps, const char *notice)\r
720ee7f6 250{\r
daf91588 251 int emu_opt = currentConfig.EmuOpt;\r
252\r
b3818d1e 253 if (PicoOpt&0x10)\r
254 {\r
720ee7f6 255 // 8bit fast renderer\r
256 if (Pico.m.dirtyPal) {\r
257 Pico.m.dirtyPal = 0;\r
258 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
259 // feed new palette to our device\r
260 gp2x_video_setpalette(localPal, 0x40);\r
261 }\r
b3818d1e 262 // a hack for VR\r
263 if (PicoRead16Hook == PicoSVPRead16)\r
264 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
265 // do actual copy\r
e31266dd 266 vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r
b3818d1e 267 }\r
268 else if (!(emu_opt&0x80))\r
269 {\r
720ee7f6 270 // 8bit accurate renderer\r
dd5fd477 271 if (Pico.m.dirtyPal)\r
272 {\r
61f66fe0 273 int pallen = 0xc0;\r
720ee7f6 274 Pico.m.dirtyPal = 0;\r
b13a934c 275 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
276 {\r
720ee7f6 277 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
278 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
279 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
67dfdf5f 280 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
b13a934c 281 pallen = 0x100;\r
282 }\r
b13a934c 283 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
720ee7f6 284 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
285 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
286 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
b13a934c 287 }\r
288 else {\r
720ee7f6 289 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
61f66fe0 290 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
720ee7f6 291 }\r
b13a934c 292 if (pallen > 0xc0) {\r
293 localPal[0xc0] = 0x0000c000;\r
294 localPal[0xd0] = 0x00c00000;\r
295 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
296 localPal[0xf0] = 0x00ffffff;\r
297 }\r
298 gp2x_video_setpalette(localPal, pallen);\r
720ee7f6 299 }\r
300 }\r
301\r
79cad122 302 if (notice || (emu_opt & 2)) {\r
303 int h = 232;\r
fa8d1331 304 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r
305 h -= 8;\r
306 if (notice)\r
307 osd_text(4, h, notice);\r
79cad122 308 if (emu_opt & 2)\r
309 osd_text(osd_fps_x, h, fps);\r
310 }\r
dd5fd477 311 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
2b395ee0 312 draw_cd_leds();\r
313 if (PicoAHW & PAHW_PICO)\r
314 draw_pico_ptr();\r
720ee7f6 315\r
316 //gp2x_video_wait_vsync();\r
317 gp2x_video_flip();\r
318\r
319 if (!(PicoOpt&0x10)) {\r
320 if (!(Pico.video.reg[1]&8)) {\r
321 if (currentConfig.EmuOpt&0x80) {\r
e31266dd 322 DrawLineDest = (unsigned short *) g_screen_ptr + 320*8;\r
720ee7f6 323 } else {\r
e31266dd 324 DrawLineDest = (unsigned char *) g_screen_ptr + 320*8;\r
720ee7f6 325 }\r
326 } else {\r
e31266dd 327 DrawLineDest = g_screen_ptr;\r
720ee7f6 328 }\r
329 }\r
330}\r
331\r
332\r
333// clears whole screen or just the notice area (in all buffers)\r
334static void clearArea(int full)\r
335{\r
daf91588 336 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
337 // 8-bit renderers\r
338 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
339 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
340 } else {\r
720ee7f6 341 // 16bit accurate renderer\r
342 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
343 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 344 }\r
345}\r
346\r
347\r
348static void vidResetMode(void)\r
349{\r
350 if (PicoOpt&0x10) {\r
720ee7f6 351 gp2x_video_changemode(8);\r
720ee7f6 352 } else if (currentConfig.EmuOpt&0x80) {\r
13059a60 353 gp2x_video_changemode(16);\r
720ee7f6 354 PicoDrawSetColorFormat(1);\r
dd5fd477 355 PicoScanBegin = EmuScanBegin16;\r
720ee7f6 356 } else {\r
daf91588 357 gp2x_video_changemode(8);\r
358 PicoDrawSetColorFormat(2);\r
dd5fd477 359 PicoScanBegin = EmuScanBegin8;\r
daf91588 360 }\r
361 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
362 // setup pal for 8-bit modes\r
363 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
364 localPal[0xd0] = 0x00c00000;\r
720ee7f6 365 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
366 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 367 gp2x_video_setpalette(localPal, 0x100);\r
368 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
369 gp2x_video_flip();\r
720ee7f6 370 }\r
371 Pico.m.dirtyPal = 1;\r
372 // reset scaling\r
fa8d1331 373 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r
79cad122 374 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
375 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
720ee7f6 376}\r
377\r
378\r
dfa4c846 379static void emu_msg_cb(const char *msg)\r
380{\r
381 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
382 // 8-bit renderers\r
383 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
384 osd_text(4, 232, msg);\r
e31266dd 385 gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232, 320*232, 320*8);\r
dfa4c846 386 } else {\r
387 // 16bit accurate renderer\r
388 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
389 osd_text(4, 232, msg);\r
e31266dd 390 gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232*2, 320*232*2, 320*8*2);\r
dfa4c846 391 }\r
392 gettimeofday(&noticeMsgTime, 0);\r
393 noticeMsgTime.tv_sec -= 2;\r
e5589947 394\r
395 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
396 reset_timing = 1;\r
dfa4c846 397}\r
398\r
1078e544 399static void emu_state_cb(const char *str)\r
400{\r
401 clearArea(0);\r
402 blit("", str);\r
403}\r
404\r
5e2e14f2 405static void emu_msg_tray_open(void)\r
406{\r
407 strcpy(noticeMsg, "CD tray opened");\r
408 gettimeofday(&noticeMsgTime, 0);\r
409}\r
410\r
82abf46f 411static void RunEventsPico(unsigned int events)\r
e1cd546f 412{\r
6589c840 413 int ret, px, py, lim_x;\r
3f2aaff2 414 static int pdown_frames = 0;\r
415\r
8a091e48 416 emu_RunEventsPico(events);\r
417\r
6589c840 418 if (pico_inp_mode == 0) return;\r
3f2aaff2 419\r
420 // for F200\r
421 ret = gp2x_touchpad_read(&px, &py);\r
6589c840 422 if (ret >= 0)\r
423 {\r
424 if (ret > 35000)\r
425 {\r
3f2aaff2 426 if (pdown_frames++ > 5)\r
427 PicoPad[0] |= 0x20;\r
428\r
429 pico_pen_x = px;\r
430 pico_pen_y = py;\r
431 if (!(Pico.video.reg[12]&1)) {\r
432 pico_pen_x -= 32;\r
433 if (pico_pen_x < 0) pico_pen_x = 0;\r
434 if (pico_pen_x > 248) pico_pen_x = 248;\r
435 }\r
436 if (pico_pen_y > 224) pico_pen_y = 224;\r
437 }\r
438 else\r
6589c840 439 pdown_frames = 0;\r
3f2aaff2 440\r
441 //if (ret == 0)\r
442 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
443 }\r
6589c840 444\r
82abf46f 445 if (PicoPad[0] & 1) pico_pen_y--;\r
446 if (PicoPad[0] & 2) pico_pen_y++;\r
447 if (PicoPad[0] & 4) pico_pen_x--;\r
448 if (PicoPad[0] & 8) pico_pen_x++;\r
6589c840 449 PicoPad[0] &= ~0x0f; // release UDLR\r
6589c840 450\r
451 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
452 if (pico_pen_y < 8) pico_pen_y = 8;\r
453 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
454 if (pico_pen_x < 0) pico_pen_x = 0;\r
455 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
456\r
457 PicoPicohw.pen_pos[0] = pico_pen_x;\r
458 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
459 PicoPicohw.pen_pos[0] += 0x3c;\r
460 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
e1cd546f 461}\r
462\r
0480e6c9 463static void update_volume(int has_changed, int is_up)\r
464{\r
465 static int prev_frame = 0, wait_frames = 0;\r
466 int vol = currentConfig.volume;\r
467\r
468 if (has_changed)\r
469 {\r
470 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
471 wait_frames++;\r
472 else {\r
473 if (is_up) {\r
474 if (vol < 99) vol++;\r
475 } else {\r
476 if (vol > 0) vol--;\r
477 }\r
478 wait_frames = 0;\r
b3972d82 479 sndout_oss_setvol(vol, vol);\r
0480e6c9 480 currentConfig.volume = vol;\r
481 }\r
482 sprintf(noticeMsg, "VOL: %02i", vol);\r
483 gettimeofday(&noticeMsgTime, 0);\r
484 prev_frame = Pico.m.frame_count;\r
485 }\r
486\r
487 // set the right mixer func\r
488 if (!(PicoOpt&8)) return; // just use defaults for mono\r
489 if (vol >= 5)\r
490 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
491 else {\r
492 mix_32_to_16l_level = 5 - vol;\r
493 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
494 }\r
495}\r
496\r
720ee7f6 497static void RunEvents(unsigned int which)\r
498{\r
0480e6c9 499 if (which & 0x1800) // save or load (but not both)\r
500 {\r
720ee7f6 501 int do_it = 1;\r
f013066e 502 if ( emu_checkSaveFile(state_slot) &&\r
82abf46f 503 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
504 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save\r
505 {\r
506 const char *nm;\r
507 char tmp[64];\r
508 int keys, len;\r
509\r
510 strcpy(tmp, (which & 0x1000) ? "LOAD STATE? " : "OVERWRITE SAVE? ");\r
511 len = strlen(tmp);\r
512 nm = in_get_key_name(-1, -PBTN_MA3);\r
513 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
514 len = strlen(tmp);\r
515 nm = in_get_key_name(-1, -PBTN_MBACK);\r
516 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
517\r
518 blit("", tmp);\r
519\r
520 in_set_blocking(1);\r
521 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK)); // wait for release\r
522 while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) ); // .. press\r
523 if (keys & PBTN_MBACK)\r
524 do_it = 0;\r
525 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK)); // .. release\r
526 in_set_blocking(0);\r
527\r
720ee7f6 528 clearArea(0);\r
529 }\r
530 if (do_it) {\r
0805b5b4 531 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
1078e544 532 PicoStateProgressCB = emu_state_cb;\r
e31266dd 533 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r
0805b5b4 534 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
1078e544 535 PicoStateProgressCB = NULL;\r
720ee7f6 536 }\r
537\r
538 reset_timing = 1;\r
539 }\r
0480e6c9 540 if (which & 0x0400) // switch renderer\r
541 {\r
720ee7f6 542 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
543 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
544 else currentConfig.EmuOpt &= ~0x80;\r
545\r
546 vidResetMode();\r
547\r
548 if (PicoOpt&0x10) {\r
549 strcpy(noticeMsg, " 8bit fast renderer");\r
550 } else if (currentConfig.EmuOpt&0x80) {\r
551 strcpy(noticeMsg, "16bit accurate renderer");\r
552 } else {\r
553 strcpy(noticeMsg, " 8bit accurate renderer");\r
554 }\r
555\r
82abf46f 556 emu_noticeMsgUpdated();\r
720ee7f6 557 }\r
0480e6c9 558 if (which & 0x0300)\r
559 {\r
720ee7f6 560 if(which&0x0200) {\r
561 state_slot -= 1;\r
562 if(state_slot < 0) state_slot = 9;\r
563 } else {\r
564 state_slot += 1;\r
565 if(state_slot > 9) state_slot = 0;\r
566 }\r
f013066e 567 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
82abf46f 568 emu_noticeMsgUpdated();\r
720ee7f6 569 }\r
0480e6c9 570 if (which & 0x0080) {\r
720ee7f6 571 engineState = PGS_Menu;\r
572 }\r
573}\r
574\r
720ee7f6 575static void updateKeys(void)\r
576{\r
82abf46f 577 unsigned int allActions[2] = { 0, 0 }, events;\r
e1cd546f 578 static unsigned int prevEvents = 0;\r
720ee7f6 579\r
2c600560 580 /* FIXME: player2 */\r
fce20e73 581 allActions[0] = in_update();\r
720ee7f6 582\r
6589c840 583 PicoPad[0] = allActions[0] & 0xfff;\r
584 PicoPad[1] = allActions[1] & 0xfff;\r
585\r
586 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
587 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
720ee7f6 588\r
589 events = (allActions[0] | allActions[1]) >> 16;\r
590\r
591 // volume is treated in special way and triggered every frame\r
0480e6c9 592 if (events & 0x6000)\r
593 update_volume(1, events & 0x2000);\r
594\r
8a091e48 595 if ((events ^ prevEvents) & 0x40) {\r
596 emu_changeFastForward(events & 0x40);\r
597 update_volume(0, 0);\r
598 reset_timing = 1;\r
599 }\r
720ee7f6 600\r
601 events &= ~prevEvents;\r
e1cd546f 602\r
603 if (PicoAHW == PAHW_PICO)\r
82abf46f 604 RunEventsPico(events);\r
720ee7f6 605 if (events) RunEvents(events);\r
f013066e 606 if (movie_data) emu_updateMovie();\r
720ee7f6 607\r
608 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
609}\r
610\r
720ee7f6 611\r
3ef975c9 612static void updateSound(int len)\r
720ee7f6 613{\r
3ef975c9 614 if (PicoOpt&8) len<<=1;\r
720ee7f6 615\r
d9a18943 616 /* avoid writing audio when lagging behind to prevent audio lag */\r
617 if (PicoSkipFrame != 2)\r
b3972d82 618 sndout_oss_write(PsndOut, len<<1);\r
720ee7f6 619}\r
620\r
725d7f6c 621void emu_startSound(void)\r
622{\r
623 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
624 int target_fps = Pico.m.pal ? 50 : 60;\r
625\r
626 PsndOut = NULL;\r
627\r
628 // prepare sound stuff\r
629 if (currentConfig.EmuOpt & 4)\r
630 {\r
631 int snd_excess_add;\r
632 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
633 ((PicoOpt&0x200) && crashed_940)) {\r
634 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
635 }\r
636 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
637 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
638 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
b3972d82 639 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
640 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
725d7f6c 641 PicoWriteSound = updateSound;\r
642 update_volume(0, 0);\r
643 memset(sndBuffer, 0, sizeof(sndBuffer));\r
644 PsndOut = sndBuffer;\r
645 PsndRate_old = PsndRate;\r
646 PicoOpt_old = PicoOpt;\r
647 pal_old = Pico.m.pal;\r
648 }\r
649}\r
650\r
651void emu_endSound(void)\r
652{\r
653}\r
654\r
655/* wait until we can write more sound */\r
656void emu_waitSound(void)\r
657{\r
658 // don't need to do anything, writes will block by themselves\r
659}\r
660\r
720ee7f6 661\r
d9a18943 662static void SkipFrame(int do_audio)\r
720ee7f6 663{\r
d9a18943 664 PicoSkipFrame=do_audio ? 1 : 2;\r
720ee7f6 665 PicoFrame();\r
666 PicoSkipFrame=0;\r
720ee7f6 667}\r
668\r
669\r
84e21f25 670void emu_forcedFrame(int opts)\r
4ffd2858 671{\r
672 int po_old = PicoOpt;\r
13059a60 673 int eo_old = currentConfig.EmuOpt;\r
674\r
84e21f25 675 PicoOpt &= ~0x10;\r
676 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
13059a60 677 currentConfig.EmuOpt |= 0x80;\r
4ffd2858 678\r
13059a60 679 //vidResetMode();\r
680 PicoDrawSetColorFormat(1);\r
dd5fd477 681 PicoScanBegin = EmuScanBegin16;\r
13059a60 682 Pico.m.dirtyPal = 1;\r
683 PicoFrameDrawOnly();\r
4ffd2858 684\r
13059a60 685/*\r
4ffd2858 686 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 687 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 688 clearArea(1);\r
dccc2bd0 689 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 690\r
e31266dd 691 vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r
4ffd2858 692 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
693 gp2x_video_setpalette(localPal, 0x40);\r
13059a60 694*/\r
e1aa0fa7 695 PicoOpt = po_old;\r
13059a60 696 currentConfig.EmuOpt = eo_old;\r
4ffd2858 697}\r
698\r
7443ecd9 699void emu_platformDebugCat(char *str)\r
700{\r
701 // nothing\r
702}\r
703\r
720ee7f6 704static void simpleWait(int thissec, int lim_time)\r
705{\r
706 struct timeval tval;\r
707\r
708 spend_cycles(1024);\r
709 gettimeofday(&tval, 0);\r
450dab6f 710 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 711\r
450dab6f 712 while (tval.tv_usec < lim_time)\r
720ee7f6 713 {\r
714 spend_cycles(1024);\r
715 gettimeofday(&tval, 0);\r
450dab6f 716 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 717 }\r
718}\r
719\r
720\r
450dab6f 721#if 0\r
722static void tga_dump(void)\r
723{\r
724#define BYTE unsigned char\r
725#define WORD unsigned short\r
726 struct\r
727 {\r
728 BYTE IDLength; /* 00h Size of Image ID field */\r
729 BYTE ColorMapType; /* 01h Color map type */\r
730 BYTE ImageType; /* 02h Image type code */\r
731 WORD CMapStart; /* 03h Color map origin */\r
732 WORD CMapLength; /* 05h Color map length */\r
733 BYTE CMapDepth; /* 07h Depth of color map entries */\r
734 WORD XOffset; /* 08h X origin of image */\r
735 WORD YOffset; /* 0Ah Y origin of image */\r
736 WORD Width; /* 0Ch Width of image */\r
737 WORD Height; /* 0Eh Height of image */\r
738 BYTE PixelDepth; /* 10h Image pixel size */\r
739 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
740 } __attribute__((packed)) TGAHEAD;\r
741 static unsigned short oldscr[320*240];\r
742 FILE *f; char name[128]; int i;\r
743\r
744 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
745 TGAHEAD.ImageType = 2;\r
746 TGAHEAD.Width = 320;\r
747 TGAHEAD.Height = 240;\r
748 TGAHEAD.PixelDepth = 16;\r
749 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
750\r
751#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
752\r
753 for (i = 0; i < 320*240; i++)\r
e31266dd 754 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r
450dab6f 755 if (i < 320*240)\r
756 {\r
757 for (i = 0; i < 320*240; i++)\r
e31266dd 758 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r
450dab6f 759 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
760 f = fopen(name, "wb");\r
761 if (!f) { printf("!f\n"); exit(1); }\r
762 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
763 fwrite(oldscr, 1, 320*240*2, f);\r
764 fclose(f);\r
765 }\r
766}\r
767#endif\r
768\r
769\r
720ee7f6 770void emu_Loop(void)\r
771{\r
fa5e045b 772 static int gp2x_old_clock = -1, EmuOpt_old = 0;\r
720ee7f6 773 char fpsbuff[24]; // fps count c string\r
774 struct timeval tval; // timing\r
450dab6f 775 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
776 int frames_done, frames_shown, thissec; // actual frames\r
777 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
720ee7f6 778 char *notice = 0;\r
779\r
780 printf("entered emu_Loop()\n");\r
781\r
fa5e045b 782 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r
783 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r
fa8d1331 784 set_ram_timings();\r
fa5e045b 785 else\r
786 unset_ram_timings();\r
787 }\r
788\r
789 if (gp2x_old_clock < 0)\r
790 gp2x_old_clock = default_cpu_clock;\r
720ee7f6 791 if (gp2x_old_clock != currentConfig.CPUclock) {\r
792 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
fa5e045b 793 gp2x_set_cpuclk(currentConfig.CPUclock);\r
720ee7f6 794 gp2x_old_clock = currentConfig.CPUclock;\r
795 printf(" done\n");\r
796 }\r
797\r
55a951dd 798 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
fa5e045b 799 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 800 gp2x_old_gamma = currentConfig.gamma;\r
55a951dd 801 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 802 }\r
803\r
fa5e045b 804 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_PSYNC) {\r
805 if (currentConfig.EmuOpt & EOPT_PSYNC)\r
806 set_lcd_custom_rate(Pico.m.pal);\r
807 else\r
808 unset_lcd_custom_rate();\r
59d0f042 809 }\r
810\r
fa5e045b 811 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r
812 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r
813\r
59d0f042 814 EmuOpt_old = currentConfig.EmuOpt;\r
720ee7f6 815 fpsbuff[0] = 0;\r
816\r
817 // make sure we are in correct mode\r
818 vidResetMode();\r
f013066e 819 scaling_update();\r
e5d315a5 820 Pico.m.dirtyPal = 1;\r
720ee7f6 821 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
720ee7f6 822\r
823 // pal/ntsc might have changed, reset related stuff\r
824 target_fps = Pico.m.pal ? 50 : 60;\r
825 target_frametime = 1000000/target_fps;\r
826 reset_timing = 1;\r
827\r
725d7f6c 828 emu_startSound();\r
720ee7f6 829\r
5f9922e6 830 // prepare CD buffer\r
dd5fd477 831 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
5f9922e6 832\r
59d0f042 833 // calc vsync offset to sync timing code with vsync\r
834 if (currentConfig.EmuOpt&0x2000) {\r
835 gettimeofday(&tval, 0);\r
836 gp2x_video_wait_vsync();\r
837 gettimeofday(&tval, 0);\r
838 vsync_offset = tval.tv_usec;\r
839 while (vsync_offset >= target_frametime)\r
840 vsync_offset -= target_frametime;\r
841 if (!vsync_offset) vsync_offset++;\r
842 printf("vsync_offset: %i\n", vsync_offset);\r
843 } else\r
844 vsync_offset = 0;\r
845\r
450dab6f 846 frames_done = frames_shown = thissec =\r
847 pframes_done = pframes_shown = pthissec = 0;\r
848\r
849 // loop\r
720ee7f6 850 while (engineState == PGS_Running)\r
851 {\r
852 int modes;\r
853\r
854 gettimeofday(&tval, 0);\r
0480e6c9 855 if (reset_timing) {\r
720ee7f6 856 reset_timing = 0;\r
450dab6f 857 pthissec = tval.tv_sec;\r
858 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
720ee7f6 859 }\r
860\r
861 // show notice message?\r
0480e6c9 862 if (noticeMsgTime.tv_sec)\r
863 {\r
720ee7f6 864 static int noticeMsgSum;\r
865 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
866 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
867 clearArea(0);\r
868 notice = 0;\r
869 } else {\r
870 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
871 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
872 notice = noticeMsg;\r
873 }\r
874 }\r
875\r
876 // check for mode changes\r
877 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
0480e6c9 878 if (modes != oldmodes)\r
879 {\r
720ee7f6 880 int scalex = 320;\r
881 osd_fps_x = OSD_FPS_X;\r
882 if (modes & 4) {\r
883 vidCpyM2 = vidCpyM2_40col;\r
884 } else {\r
885 if (PicoOpt & 0x100) {\r
886 vidCpyM2 = vidCpyM2_32col_nobord;\r
887 scalex = 256;\r
888 osd_fps_x = OSD_FPS_X - 64;\r
889 } else {\r
890 vidCpyM2 = vidCpyM2_32col;\r
891 }\r
892 }\r
fa8d1331 893 /* want vertical scaling and game is not in 240 line mode */\r
894 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(modes&8))\r
79cad122 895 gp2x_video_RGB_setscaling(8, scalex, 224);\r
896 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
720ee7f6 897 oldmodes = modes;\r
898 clearArea(1);\r
899 }\r
900\r
901 // second changed?\r
0480e6c9 902 if (thissec != tval.tv_sec)\r
903 {\r
720ee7f6 904#ifdef BENCHMARK\r
905 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
0480e6c9 906 if (++bench == 10) {\r
720ee7f6 907 bench = 0;\r
908 bench_fps_s = bench_fps;\r
909 bf[bfp++ & 3] = bench_fps;\r
910 bench_fps = 0;\r
911 }\r
912 bench_fps += frames_shown;\r
913 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
914#else\r
55c7b464 915 if (currentConfig.EmuOpt & 2) {\r
720ee7f6 916 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
55c7b464 917 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
918 }\r
720ee7f6 919#endif\r
450dab6f 920 frames_shown = frames_done = 0;\r
720ee7f6 921 thissec = tval.tv_sec;\r
450dab6f 922 }\r
923#ifdef PFRAMES\r
924 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
925#endif\r
720ee7f6 926\r
450dab6f 927 if (pthissec != tval.tv_sec)\r
928 {\r
0480e6c9 929 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
450dab6f 930 pframes_done = pframes_shown = 0;\r
720ee7f6 931 } else {\r
932 // it is quite common for this implementation to leave 1 fame unfinished\r
933 // when second changes, but we don't want buffer to starve.\r
450dab6f 934 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
720ee7f6 935 updateKeys();\r
450dab6f 936 SkipFrame(1); pframes_done++;\r
720ee7f6 937 }\r
938\r
450dab6f 939 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
940 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
941 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
720ee7f6 942 }\r
450dab6f 943 pthissec = tval.tv_sec;\r
720ee7f6 944 }\r
59d0f042 945\r
450dab6f 946 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
947 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
948 {\r
720ee7f6 949 for(i = 0; i < currentConfig.Frameskip; i++) {\r
950 updateKeys();\r
450dab6f 951 SkipFrame(1); pframes_done++; frames_done++;\r
0480e6c9 952 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
720ee7f6 953 gettimeofday(&tval, 0);\r
450dab6f 954 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
955 if (tval.tv_usec < lim_time) { // we are too fast\r
956 simpleWait(pthissec, lim_time);\r
720ee7f6 957 }\r
958 }\r
959 lim_time += target_frametime;\r
960 }\r
450dab6f 961 }\r
962 else if (tval.tv_usec > lim_time) // auto frameskip\r
963 {\r
720ee7f6 964 // no time left for this frame - skip\r
f013066e 965 if (tval.tv_usec - lim_time >= 300000) {\r
d032c15a 966 /* something caused a slowdown for us (disk access? cache flush?)\r
967 * try to recover by resetting timing... */\r
968 reset_timing = 1;\r
969 continue;\r
970 }\r
720ee7f6 971 updateKeys();\r
450dab6f 972 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
720ee7f6 973 continue;\r
974 }\r
975\r
976 updateKeys();\r
977 PicoFrame();\r
978\r
979 // check time\r
980 gettimeofday(&tval, 0);\r
450dab6f 981 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 982\r
f013066e 983 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
d032c15a 984 reset_timing = 1;\r
985 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 986 {\r
59d0f042 987 // sleep or vsync if we are still too fast\r
720ee7f6 988 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
0480e6c9 989 if (!reset_timing && tval.tv_usec < lim_time)\r
720ee7f6 990 {\r
991 // we are too fast\r
59d0f042 992 if (vsync_offset) {\r
993 if (lim_time - tval.tv_usec > target_frametime/2)\r
450dab6f 994 simpleWait(pthissec, lim_time - target_frametime/4);\r
59d0f042 995 gp2x_video_wait_vsync();\r
996 } else {\r
450dab6f 997 simpleWait(pthissec, lim_time);\r
59d0f042 998 }\r
720ee7f6 999 }\r
1000 }\r
1001\r
1002 blit(fpsbuff, notice);\r
1003\r
450dab6f 1004 pframes_done++; pframes_shown++;\r
1005 frames_done++; frames_shown++;\r
720ee7f6 1006 }\r
1007\r
8a091e48 1008 emu_changeFastForward(0);\r
5f9922e6 1009\r
dd5fd477 1010 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
5f9922e6 1011\r
720ee7f6 1012 // save SRAM\r
1013 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
6ab2f79c 1014 emu_state_cb("Writing SRAM/BRAM..");\r
720ee7f6 1015 emu_SaveLoadGame(0, 1);\r
1016 SRam.changed = 0;\r
1017 }\r
e5d315a5 1018\r
13059a60 1019 // if in 8bit mode, generate 16bit image for menu background\r
1020 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
84e21f25 1021 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
720ee7f6 1022}\r
1023\r
1024\r
1025void emu_ResetGame(void)\r
1026{\r
8d5cb10d 1027 PicoReset();\r
720ee7f6 1028 reset_timing = 1;\r
1029}\r
1030\r
049a6b3e 1031const char *plat_get_credits(void)\r
1032{\r
1033 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r
1034 "Credits:\n"\r
1035 "fDave: Cyclone 68000 core,\n"\r
1036 " base code of PicoDrive\n"\r
1037 "Reesy & FluBBa: DrZ80 core\n"\r
1038 "MAME devs: YM2612 and SN76496 cores\n"\r
1039 "rlyeh and others: minimal SDK\n"\r
d572cbad 1040 "Squidge: mmuhack\n"\r
049a6b3e 1041 "Dzz: ARM940 sample\n"\r
1042 "GnoStiC / Puck2099: USB joy code\n"\r
1043 "craigix: GP2X hardware\n"\r
1044 "ketchupgun: skin design\n"\r
1045 "\n"\r
1046 "special thanks (for docs, ideas):\n"\r
1047 " Charles MacDonald, Haze,\n"\r
1048 " Stephane Dallongeville,\n"\r
1049 " Lordus, Exophase, Rokas,\n"\r
1050 " Nemesis, Tasco Deluxe";\r
1051}\r
PicoDrive's frontend in a lib