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more unification; replace some magic bits to defines
[libpicofe.git] / pandora / emu.c
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de9b1274 1// (c) Copyright 2006-2008 notaz, All rights reserved.\r
492d353a 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
9#include <sys/stat.h>\r
10#include <sys/types.h>\r
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
492d353a 17#include "../common/arm_utils.h"\r
18#include "../common/fonts.h"\r
19#include "../common/emu.h"\r
7fd581f4 20#include "../common/menu.h"\r
492d353a 21#include "../common/config.h"\r
fce20e73 22#include "../common/input.h"\r
b3972d82 23#include "../linux/sndout_oss.h"\r
de9b1274 24#include "asm_utils.h"\r
492d353a 25\r
f11bad75 26#include <pico/pico_int.h>\r
27#include <pico/patch.h>\r
28#include <pico/sound/mix.h>\r
492d353a 29#include <zlib/zlib.h>\r
30\r
31//#define PFRAMES\r
de9b1274 32#define BENCHMARK\r
33//#define USE_320_SCREEN 1\r
492d353a 34\r
35#ifdef BENCHMARK\r
36#define OSD_FPS_X (800-200)\r
37#else\r
38#define OSD_FPS_X (800-120)\r
39#endif\r
40\r
41\r
492d353a 42static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
43static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
44static int osd_fps_x;\r
492d353a 45unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
46int reset_timing = 0;\r
47\r
48#define PICO_PEN_ADJUST_X 4\r
49#define PICO_PEN_ADJUST_Y 2\r
e31266dd 50static int pico_pen_x = 0, pico_pen_y = 240/2;\r
492d353a 51\r
52static void emu_msg_cb(const char *msg);\r
53static void emu_msg_tray_open(void);\r
54\r
55\r
388947f3 56void plat_status_msg(const char *format, ...)\r
492d353a 57{\r
388947f3 58 va_list vl;\r
59\r
60 va_start(vl, format);\r
61 vsnprintf(noticeMsg, sizeof(noticeMsg), fmt, vl);\r
62 va_end(vl);\r
63\r
492d353a 64 gettimeofday(&noticeMsgTime, 0);\r
65}\r
66\r
36f6fd5a 67int emu_getMainDir(char *dst, int len)\r
492d353a 68{\r
69 extern char **g_argv;\r
70 int j;\r
71\r
72 strncpy(dst, g_argv[0], len);\r
73 len -= 32; // reserve\r
74 if (len < 0) len = 0;\r
75 dst[len] = 0;\r
76 for (j = strlen(dst); j > 0; j--)\r
77 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
36f6fd5a 78\r
79 return j + 1;\r
492d353a 80}\r
81\r
82void emu_Init(void)\r
83{\r
84 // make temp buffer for alt renderer\r
85 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
86 if (!PicoDraw2FB)\r
87 {\r
88 printf("PicoDraw2FB == 0\n");\r
89 }\r
90\r
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
97 PicoInit();\r
98 PicoMessage = emu_msg_cb;\r
99 PicoMCDopenTray = emu_msg_tray_open;\r
100 PicoMCDcloseTray = menu_loop_tray;\r
101}\r
102\r
103\r
492d353a 104void emu_Deinit(void)\r
105{\r
106 // save SRAM\r
107 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
108 emu_SaveLoadGame(0, 1);\r
109 SRam.changed = 0;\r
110 }\r
111\r
112 if (!(currentConfig.EmuOpt & 0x20)) {\r
113 config_writelrom(PicoConfigFile);\r
114#ifndef NO_SYNC\r
115 sync();\r
116#endif\r
117 }\r
118\r
119 free(PicoDraw2FB);\r
120\r
121 PicoExit();\r
122}\r
123\r
124void emu_prepareDefaultConfig(void)\r
125{\r
126 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
5d239ae7 127 defaultConfig.EmuOpt = 0x8f | 0x00600; // | <- confirm_save, cd_leds\r
de9b1274 128 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC;\r
129 defaultConfig.s_PicoOpt |= POPT_ACC_SPRITES|POPT_EN_MCD_GFX;\r
5d239ae7 130 defaultConfig.EmuOpt &= ~8; // no save gzip\r
492d353a 131 defaultConfig.s_PsndRate = 44100;\r
5d239ae7 132 defaultConfig.s_PicoRegion = 0;\r
492d353a 133 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
134 defaultConfig.s_PicoCDBuffers = 0;\r
de9b1274 135 defaultConfig.Frameskip = 0;\r
492d353a 136 defaultConfig.CPUclock = 200;\r
137 defaultConfig.volume = 50;\r
138 defaultConfig.scaling = 0;\r
139 defaultConfig.turbo_rate = 15;\r
140}\r
141\r
492d353a 142static void textOut16(int x, int y, const char *text)\r
143{\r
144 int i,l,len=strlen(text);\r
e31266dd 145 unsigned int *screen = (unsigned int *)((unsigned short *)g_screen_ptr + (x&~1) + y*g_screen_width);\r
492d353a 146\r
147 for (i = 0; i < len; i++)\r
148 {\r
de9b1274 149 for (l=0;l<16;)\r
492d353a 150 {\r
151 unsigned char fd = fontdata8x8[((text[i])*8)+l/2];\r
e31266dd 152 unsigned int *d = &screen[l*g_screen_width/2];\r
de9b1274 153 if (fd&0x80) d[0]=0xffffffff;\r
154 if (fd&0x40) d[1]=0xffffffff;\r
155 if (fd&0x20) d[2]=0xffffffff;\r
156 if (fd&0x10) d[3]=0xffffffff;\r
157 if (fd&0x08) d[4]=0xffffffff;\r
158 if (fd&0x04) d[5]=0xffffffff;\r
159 if (fd&0x02) d[6]=0xffffffff;\r
160 if (fd&0x01) d[7]=0xffffffff;\r
e31266dd 161 l++; d = &screen[l*g_screen_width/2];\r
de9b1274 162 if (fd&0x80) d[0]=0xffffffff;\r
163 if (fd&0x40) d[1]=0xffffffff;\r
164 if (fd&0x20) d[2]=0xffffffff;\r
165 if (fd&0x10) d[3]=0xffffffff;\r
166 if (fd&0x08) d[4]=0xffffffff;\r
167 if (fd&0x04) d[5]=0xffffffff;\r
168 if (fd&0x02) d[6]=0xffffffff;\r
169 if (fd&0x01) d[7]=0xffffffff;\r
170 l++;\r
492d353a 171 }\r
172 screen += 8;\r
173 }\r
174}\r
175\r
176\r
046c4540 177static void osd_text(int x, int y, const char *text)\r
492d353a 178{\r
179 int len = strlen(text)*8;\r
180\r
181 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
182 int *p, i, h;\r
183 x &= ~3; // align x\r
184 len = (len+3) >> 2;\r
185 for (h = 0; h < 8; h++) {\r
7fd581f4 186 p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h));\r
492d353a 187 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
188 }\r
189 emu_textOut8(x, y, text);\r
190 } else {\r
191 int *p, i, h;\r
192 x &= ~1; // align x\r
193 len++;\r
194 for (h = 0; h < 16; h++) {\r
7fd581f4 195 p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h));\r
de9b1274 196 for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r
492d353a 197 }\r
198 textOut16(x, y, text);\r
199 }\r
200}\r
201\r
202static void draw_cd_leds(void)\r
203{\r
204// static\r
205 int old_reg;\r
206// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
207 old_reg = Pico_mcd->s68k_regs[0];\r
208\r
209 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
210 // 8-bit modes\r
211 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
212 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
7fd581f4 213 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
214 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
215 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
216 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
217 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
218 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
492d353a 219 } else {\r
220 // 16-bit modes\r
7fd581f4 221 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
492d353a 222 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
223 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
e31266dd 224 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
225 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
492d353a 226 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
227 }\r
228}\r
229\r
230static void draw_pico_ptr(void)\r
231{\r
7fd581f4 232 unsigned short *p = (unsigned short *)g_screen_ptr;\r
492d353a 233\r
234 // only if pen enabled and for 16bit modes\r
235 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
236\r
237 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
238 p += 32;\r
239\r
e31266dd 240 p += g_screen_width * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
492d353a 241 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
242 p[0] ^= 0xffff;\r
243 p[319] ^= 0xffff;\r
244 p[320] ^= 0xffff;\r
245 p[321] ^= 0xffff;\r
246 p[640] ^= 0xffff;\r
247}\r
248\r
de9b1274 249#ifdef USE_320_SCREEN\r
250\r
251static int EmuScanBegin16(unsigned int num)\r
252{\r
253 if (!(Pico.video.reg[1]&8)) num += 8;\r
7fd581f4 254 DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2;\r
de9b1274 255 //int w = (Pico.video.reg[12]&1) ? 320 : 256;\r
7fd581f4 256 //DrawLineDest = (unsigned short *)g_screen_ptr + num*w;\r
de9b1274 257\r
258 return 0;\r
259}\r
260\r
261#else // USE_320_SCREEN\r
262\r
492d353a 263static int EmuScanEnd16(unsigned int num)\r
264{\r
265 unsigned char *ps=HighCol+8;\r
266 unsigned short *pd;\r
267 unsigned short *pal=HighPal;\r
268 int sh = Pico.video.reg[0xC]&8;\r
269 int len, mask = 0xff;\r
270\r
271 if (!(Pico.video.reg[1]&8)) num += 8;\r
7fd581f4 272 pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2;\r
492d353a 273\r
274 if (Pico.m.dirtyPal)\r
275 PicoDoHighPal555(sh);\r
276\r
277 if (Pico.video.reg[12]&1) {\r
278 len = 320;\r
279 } else {\r
de9b1274 280 pd += 32*2;\r
492d353a 281 len = 256;\r
282 }\r
283\r
f11bad75 284 if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r
285 mask=0x3f; // messed sprites, upper bits are priority stuff\r
492d353a 286\r
de9b1274 287#if 1\r
288 clut_line(pd, ps, pal, (mask<<16) | len);\r
289#else\r
492d353a 290 for (; len > 0; len--)\r
291 {\r
292 unsigned int p = pal[*ps++ & mask];\r
293 p |= p << 16;\r
294 *(unsigned int *)pd = p;\r
295 *(unsigned int *)(&pd[800]) = p;\r
296 pd += 2;\r
297 }\r
de9b1274 298#endif\r
492d353a 299\r
300 return 0;\r
301}\r
302\r
de9b1274 303#endif // USE_320_SCREEN\r
304\r
492d353a 305int localPal[0x100];\r
306static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
307\r
308static void blit(const char *fps, const char *notice)\r
309{\r
310 int emu_opt = currentConfig.EmuOpt;\r
311\r
312 if (PicoOpt&0x10)\r
313 {\r
314 // 8bit fast renderer\r
315 if (Pico.m.dirtyPal) {\r
316 Pico.m.dirtyPal = 0;\r
317 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
318 // feed new palette to our device\r
7fd581f4 319 // gp2x_video_setpalette(localPal, 0x40);\r
492d353a 320 }\r
321 // a hack for VR\r
322 if (PicoRead16Hook == PicoSVPRead16)\r
323 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
324 // do actual copy\r
7fd581f4 325 vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);\r
492d353a 326 }\r
327 else if (!(emu_opt&0x80))\r
328 {\r
329 // 8bit accurate renderer\r
330 if (Pico.m.dirtyPal)\r
331 {\r
61f66fe0 332 int pallen = 0xc0;\r
492d353a 333 Pico.m.dirtyPal = 0;\r
334 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
335 {\r
336 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
337 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
338 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
339 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
340 pallen = 0x100;\r
341 }\r
492d353a 342 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
343 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
344 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
345 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
346 pallen = 0xc0;\r
347 }\r
348 else {\r
349 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
61f66fe0 350 memcpy32(localPal+0x80, localPal, 0x40);\r
492d353a 351 }\r
352 if (pallen > 0xc0) {\r
353 localPal[0xc0] = 0x0000c000;\r
354 localPal[0xd0] = 0x00c00000;\r
355 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
356 localPal[0xf0] = 0x00ffffff;\r
357 }\r
7fd581f4 358 // gp2x_video_setpalette(localPal, pallen);\r
492d353a 359 }\r
360 }\r
361\r
362 if (notice || (emu_opt & 2)) {\r
e31266dd 363 int h = g_screen_height-16;\r
492d353a 364 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;\r
365 if (notice) osd_text(4, h, notice);\r
366 if (emu_opt & 2)\r
de9b1274 367 osd_text(osd_fps_x, h, fps);\r
492d353a 368 }\r
369 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
370 draw_cd_leds();\r
371 if (PicoAHW & PAHW_PICO)\r
372 draw_pico_ptr();\r
492d353a 373\r
374 //gp2x_video_wait_vsync();\r
7fd581f4 375 // gp2x_video_flip();\r
492d353a 376}\r
377\r
378\r
379// clears whole screen or just the notice area (in all buffers)\r
380static void clearArea(int full)\r
381{\r
7fd581f4 382 if (full) memset(g_screen_ptr, 0, g_screen_width*g_screen_height*2);\r
383 else memset((short *)g_screen_ptr + g_screen_width * (g_screen_height - 16), 0,\r
384 g_screen_width * 16 * 2);\r
492d353a 385}\r
386\r
387\r
388static void vidResetMode(void)\r
389{\r
7fd581f4 390#if 0\r
492d353a 391 if (PicoOpt&0x10) {\r
392 gp2x_video_changemode(8);\r
393 } else if (currentConfig.EmuOpt&0x80) {\r
394 gp2x_video_changemode(16);\r
de9b1274 395#ifdef USE_320_SCREEN\r
396 PicoDrawSetColorFormat(1);\r
397 PicoScanBegin = EmuScanBegin16;\r
398#else\r
492d353a 399 PicoDrawSetColorFormat(-1);\r
400 PicoScanEnd = EmuScanEnd16;\r
de9b1274 401#endif\r
492d353a 402 } else {\r
403 gp2x_video_changemode(8);\r
404 PicoDrawSetColorFormat(2);\r
405 PicoScanBegin = EmuScanBegin8;\r
406 }\r
407 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
408 // setup pal for 8-bit modes\r
409 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
410 localPal[0xd0] = 0x00c00000;\r
411 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
412 localPal[0xf0] = 0x00ffffff;\r
413 gp2x_video_setpalette(localPal, 0x100);\r
414 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
415 gp2x_video_flip();\r
416 }\r
417 Pico.m.dirtyPal = 1;\r
418 // reset scaling\r
419 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
420 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
421 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
7fd581f4 422#else\r
423#ifdef USE_320_SCREEN\r
424 PicoDrawSetColorFormat(1);\r
425 PicoScanBegin = EmuScanBegin16;\r
426#else\r
427 PicoDrawSetColorFormat(-1);\r
428 PicoScanEnd = EmuScanEnd16;\r
429#endif\r
430#endif\r
492d353a 431}\r
432\r
433\r
434static void emu_msg_cb(const char *msg)\r
435{\r
7fd581f4 436/*\r
492d353a 437 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
438 // 8-bit renderers\r
e31266dd 439 gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16), 0xe0, g_screen_width*16);\r
440 osd_text(4, g_screen_height-16, msg);\r
7fd581f4 441 gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16),\r
e31266dd 442 g_screen_width*(g_screen_height-16), g_screen_width*16);\r
492d353a 443 } else {\r
444 // 16bit accurate renderer\r
e31266dd 445 gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16)*2, 0, g_screen_width*16*2);\r
446 osd_text(4, g_screen_height-16, msg);\r
7fd581f4 447 gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16)*2,\r
e31266dd 448 g_screen_width*(g_screen_height-16)*2, g_screen_width*16*2);\r
492d353a 449 }\r
450 gettimeofday(&noticeMsgTime, 0);\r
451 noticeMsgTime.tv_sec -= 2;\r
7fd581f4 452*/\r
492d353a 453 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
454 reset_timing = 1;\r
455}\r
456\r
457static void emu_state_cb(const char *str)\r
458{\r
459 clearArea(0);\r
460 blit("", str);\r
461}\r
462\r
463static void emu_msg_tray_open(void)\r
464{\r
465 strcpy(noticeMsg, "CD tray opened");\r
466 gettimeofday(&noticeMsgTime, 0);\r
467}\r
468\r
492d353a 469\r
470static void update_volume(int has_changed, int is_up)\r
471{\r
472 static int prev_frame = 0, wait_frames = 0;\r
473 int vol = currentConfig.volume;\r
474\r
475 if (has_changed)\r
476 {\r
477 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
478 wait_frames++;\r
479 else {\r
480 if (is_up) {\r
481 if (vol < 99) vol++;\r
482 } else {\r
483 if (vol > 0) vol--;\r
484 }\r
485 wait_frames = 0;\r
b3972d82 486 sndout_oss_setvol(vol, vol);\r
492d353a 487 currentConfig.volume = vol;\r
488 }\r
489 sprintf(noticeMsg, "VOL: %02i", vol);\r
490 gettimeofday(&noticeMsgTime, 0);\r
491 prev_frame = Pico.m.frame_count;\r
492 }\r
493\r
494 // set the right mixer func\r
495 if (!(PicoOpt&8)) return; // just use defaults for mono\r
496 if (vol >= 5)\r
497 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
498 else {\r
499 mix_32_to_16l_level = 5 - vol;\r
500 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
501 }\r
502}\r
503\r
492d353a 504\r
505static void updateSound(int len)\r
506{\r
507 if (PicoOpt&8) len<<=1;\r
508\r
509 /* avoid writing audio when lagging behind to prevent audio lag */\r
510 if (PicoSkipFrame != 2)\r
b3972d82 511 sndout_oss_write(PsndOut, len<<1);\r
492d353a 512}\r
513\r
514\r
515static void SkipFrame(int do_audio)\r
516{\r
517 PicoSkipFrame=do_audio ? 1 : 2;\r
518 PicoFrame();\r
519 PicoSkipFrame=0;\r
520}\r
521\r
522\r
523void emu_forcedFrame(int opts)\r
524{\r
525 int po_old = PicoOpt;\r
526 int eo_old = currentConfig.EmuOpt;\r
527\r
528 PicoOpt &= ~0x10;\r
529 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
530 currentConfig.EmuOpt |= 0x80;\r
531\r
532 //vidResetMode();\r
de9b1274 533#ifdef USE_320_SCREEN\r
534 PicoDrawSetColorFormat(1);\r
535 PicoScanBegin = EmuScanBegin16;\r
536#else\r
492d353a 537 PicoDrawSetColorFormat(-1);\r
538 PicoScanEnd = EmuScanEnd16;\r
de9b1274 539#endif\r
492d353a 540 Pico.m.dirtyPal = 1;\r
541 PicoFrameDrawOnly();\r
542\r
543/*\r
544 if (!(Pico.video.reg[12]&1)) {\r
545 vidCpyM2 = vidCpyM2_32col;\r
546 clearArea(1);\r
547 } else vidCpyM2 = vidCpyM2_40col;\r
548\r
7fd581f4 549 vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);\r
492d353a 550 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
551 gp2x_video_setpalette(localPal, 0x40);\r
552*/\r
553 PicoOpt = po_old;\r
554 currentConfig.EmuOpt = eo_old;\r
555}\r
556\r
f11bad75 557void emu_platformDebugCat(char *str)\r
558{\r
559 // nothing\r
560}\r
561\r
492d353a 562static void simpleWait(int thissec, int lim_time)\r
563{\r
564 struct timeval tval;\r
565\r
566 spend_cycles(1024);\r
567 gettimeofday(&tval, 0);\r
568 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
569\r
570 while (tval.tv_usec < lim_time)\r
571 {\r
572 spend_cycles(1024);\r
573 gettimeofday(&tval, 0);\r
574 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
575 }\r
576}\r
577\r
fce20e73 578void emu_startSound(void)\r
579{\r
580 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
581 int target_fps = Pico.m.pal ? 50 : 60;\r
582\r
583 PsndOut = NULL;\r
584\r
585 if (currentConfig.EmuOpt & 4)\r
586 {\r
587 int snd_excess_add;\r
588 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)\r
589 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
590\r
591 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
592 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
593 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
594 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
595 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
596 PicoWriteSound = updateSound;\r
597 update_volume(0, 0);\r
598 memset(sndBuffer, 0, sizeof(sndBuffer));\r
599 PsndOut = sndBuffer;\r
600 PsndRate_old = PsndRate;\r
601 PicoOpt_old = PicoOpt;\r
602 pal_old = Pico.m.pal;\r
603 }\r
604}\r
605\r
606void emu_endSound(void)\r
607{\r
608}\r
609\r
610/* wait until we can write more sound */\r
611void emu_waitSound(void)\r
612{\r
613 // don't need to do anything, writes will block by themselves\r
614}\r
492d353a 615\r
616void emu_Loop(void)\r
617{\r
492d353a 618 char fpsbuff[24]; // fps count c string\r
619 struct timeval tval; // timing\r
620 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
621 int frames_done, frames_shown, thissec; // actual frames\r
622 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
623 char *notice = 0;\r
624\r
625 printf("entered emu_Loop()\n");\r
626\r
627 fpsbuff[0] = 0;\r
628\r
629 // make sure we are in correct mode\r
630 vidResetMode();\r
492d353a 631 Pico.m.dirtyPal = 1;\r
632 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
492d353a 633\r
634 // pal/ntsc might have changed, reset related stuff\r
635 target_fps = Pico.m.pal ? 50 : 60;\r
636 target_frametime = 1000000/target_fps;\r
637 reset_timing = 1;\r
638\r
fce20e73 639 emu_startSound();\r
492d353a 640\r
641 // prepare CD buffer\r
642 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
643\r
644 // calc vsync offset to sync timing code with vsync\r
645 if (currentConfig.EmuOpt&0x2000) {\r
646 gettimeofday(&tval, 0);\r
7fd581f4 647 //gp2x_video_wait_vsync();\r
492d353a 648 gettimeofday(&tval, 0);\r
649 vsync_offset = tval.tv_usec;\r
650 while (vsync_offset >= target_frametime)\r
651 vsync_offset -= target_frametime;\r
652 if (!vsync_offset) vsync_offset++;\r
653 printf("vsync_offset: %i\n", vsync_offset);\r
654 } else\r
655 vsync_offset = 0;\r
656\r
657 frames_done = frames_shown = thissec =\r
658 pframes_done = pframes_shown = pthissec = 0;\r
659\r
660 // loop\r
661 while (engineState == PGS_Running)\r
662 {\r
663 int modes;\r
664\r
665 gettimeofday(&tval, 0);\r
666 if (reset_timing) {\r
667 reset_timing = 0;\r
668 pthissec = tval.tv_sec;\r
669 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
670 }\r
671\r
672 // show notice message?\r
673 if (noticeMsgTime.tv_sec)\r
674 {\r
675 static int noticeMsgSum;\r
676 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
677 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
678 clearArea(0);\r
679 notice = 0;\r
680 } else {\r
681 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
682 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
683 notice = noticeMsg;\r
684 }\r
685 }\r
686\r
687 // check for mode changes\r
688 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
689 if (modes != oldmodes)\r
690 {\r
e31266dd 691 int scalex = g_screen_width;\r
492d353a 692 osd_fps_x = OSD_FPS_X;\r
693 if (modes & 4) {\r
694 vidCpyM2 = vidCpyM2_40col;\r
695 } else {\r
696 if (PicoOpt & 0x100) {\r
697 vidCpyM2 = vidCpyM2_32col_nobord;\r
698 scalex = 256;\r
699 osd_fps_x = OSD_FPS_X - 64;\r
700 } else {\r
701 vidCpyM2 = vidCpyM2_32col;\r
702 }\r
703 }\r
7fd581f4 704 //if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
705 // gp2x_video_RGB_setscaling(8, scalex, 224);\r
706 // else gp2x_video_RGB_setscaling(0, scalex, 240);\r
492d353a 707 oldmodes = modes;\r
708 clearArea(1);\r
709 }\r
710\r
711 // second changed?\r
712 if (thissec != tval.tv_sec)\r
713 {\r
714#ifdef BENCHMARK\r
715 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
de9b1274 716 if (++bench == 4) {\r
492d353a 717 bench = 0;\r
de9b1274 718 bench_fps_s = bench_fps / 4;\r
719 bf[bfp++ & 3] = bench_fps / 4;\r
492d353a 720 bench_fps = 0;\r
721 }\r
722 bench_fps += frames_shown;\r
de9b1274 723 sprintf(fpsbuff, "%3i/%3i/%3i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
5d239ae7 724 printf("%s\n", fpsbuff);\r
492d353a 725#else\r
726 if (currentConfig.EmuOpt & 2) {\r
de9b1274 727 sprintf(fpsbuff, "%3i/%3i", frames_shown, frames_done);\r
492d353a 728 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
729 }\r
730#endif\r
731 frames_shown = frames_done = 0;\r
732 thissec = tval.tv_sec;\r
733 }\r
734#ifdef PFRAMES\r
735 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
736#endif\r
737\r
738 if (pthissec != tval.tv_sec)\r
739 {\r
740 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
741 pframes_done = pframes_shown = 0;\r
742 } else {\r
743 // it is quite common for this implementation to leave 1 fame unfinished\r
744 // when second changes, but we don't want buffer to starve.\r
745 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
388947f3 746 emu_update_input();\r
492d353a 747 SkipFrame(1); pframes_done++;\r
748 }\r
749\r
750 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
751 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
752 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
753 }\r
754 pthissec = tval.tv_sec;\r
755 }\r
756\r
757 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
758 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
759 {\r
760 for(i = 0; i < currentConfig.Frameskip; i++) {\r
388947f3 761 emu_update_input();\r
492d353a 762 SkipFrame(1); pframes_done++; frames_done++;\r
763 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
764 gettimeofday(&tval, 0);\r
765 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
766 if (tval.tv_usec < lim_time) { // we are too fast\r
767 simpleWait(pthissec, lim_time);\r
768 }\r
769 }\r
770 lim_time += target_frametime;\r
771 }\r
772 }\r
773 else if (tval.tv_usec > lim_time) // auto frameskip\r
774 {\r
775 // no time left for this frame - skip\r
776 if (tval.tv_usec - lim_time >= 300000) {\r
777 /* something caused a slowdown for us (disk access? cache flush?)\r
778 * try to recover by resetting timing... */\r
779 reset_timing = 1;\r
780 continue;\r
781 }\r
388947f3 782 emu_update_input();\r
492d353a 783 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
784 continue;\r
785 }\r
786\r
388947f3 787 emu_update_input();\r
492d353a 788 PicoFrame();\r
789\r
790 // check time\r
791 gettimeofday(&tval, 0);\r
792 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
793\r
794 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
795 reset_timing = 1;\r
095a240b 796#if 1\r
797 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
492d353a 798 {\r
799 // sleep or vsync if we are still too fast\r
800 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
801 if (!reset_timing && tval.tv_usec < lim_time)\r
802 {\r
803 // we are too fast\r
804 if (vsync_offset) {\r
805 if (lim_time - tval.tv_usec > target_frametime/2)\r
806 simpleWait(pthissec, lim_time - target_frametime/4);\r
7fd581f4 807 // gp2x_video_wait_vsync();\r
492d353a 808 } else {\r
809 simpleWait(pthissec, lim_time);\r
810 }\r
811 }\r
812 }\r
095a240b 813#endif\r
492d353a 814 blit(fpsbuff, notice);\r
815\r
816 pframes_done++; pframes_shown++;\r
817 frames_done++; frames_shown++;\r
818 }\r
819\r
820 emu_changeFastForward(0);\r
821\r
822 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
823\r
824 // save SRAM\r
825 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
826 emu_state_cb("Writing SRAM/BRAM..");\r
827 emu_SaveLoadGame(0, 1);\r
828 SRam.changed = 0;\r
829 }\r
830\r
831 // if in 8bit mode, generate 16bit image for menu background\r
832 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
833 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
834}\r
835\r
836\r
837void emu_ResetGame(void)\r
838{\r
839 PicoReset();\r
840 reset_timing = 1;\r
841}\r
842\r
PicoDrive's frontend in a lib