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Gizmondo port updated to 1.51b
[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
17#include "../gp2x/emu.h"\r
18#include "../gp2x/usbjoy.h"\r
19#include "../gp2x/menu.h"\r
20#include "../common/arm_utils.h"\r
21#include "../common/fonts.h"\r
22#include "../common/emu.h"\r
23#include "../common/config.h"\r
24#include "../common/common.h"\r
de9b1274 25#include "asm_utils.h"\r
492d353a 26\r
27#include <Pico/PicoInt.h>\r
28#include <Pico/Patch.h>\r
29#include <Pico/sound/mix.h>\r
30#include <zlib/zlib.h>\r
31\r
32//#define PFRAMES\r
de9b1274 33#define BENCHMARK\r
34//#define USE_320_SCREEN 1\r
492d353a 35\r
36#ifdef BENCHMARK\r
37#define OSD_FPS_X (800-200)\r
38#else\r
39#define OSD_FPS_X (800-120)\r
40#endif\r
41\r
42\r
43int engineState;\r
44int select_exits = 0;\r
45\r
46char romFileName[PATH_MAX];\r
47\r
48static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
49static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
50static int osd_fps_x;\r
51char noticeMsg[64]; // notice msg to draw\r
52unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
53int reset_timing = 0;\r
54\r
55#define PICO_PEN_ADJUST_X 4\r
56#define PICO_PEN_ADJUST_Y 2\r
57static int pico_pen_x = SCREEN_WIDTH/2, pico_pen_y = 240/2;\r
58\r
59static void emu_msg_cb(const char *msg);\r
60static void emu_msg_tray_open(void);\r
61\r
62\r
63void emu_noticeMsgUpdated(void)\r
64{\r
65 gettimeofday(&noticeMsgTime, 0);\r
66}\r
67\r
68void emu_getMainDir(char *dst, int len)\r
69{\r
70 extern char **g_argv;\r
71 int j;\r
72\r
73 strncpy(dst, g_argv[0], len);\r
74 len -= 32; // reserve\r
75 if (len < 0) len = 0;\r
76 dst[len] = 0;\r
77 for (j = strlen(dst); j > 0; j--)\r
78 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
79}\r
80\r
81void emu_Init(void)\r
82{\r
83 // make temp buffer for alt renderer\r
84 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
85 if (!PicoDraw2FB)\r
86 {\r
87 printf("PicoDraw2FB == 0\n");\r
88 }\r
89\r
90 // make dirs for saves, cfgs, etc.\r
91 mkdir("mds", 0777);\r
92 mkdir("srm", 0777);\r
93 mkdir("brm", 0777);\r
94 mkdir("cfg", 0777);\r
95\r
96 PicoInit();\r
97 PicoMessage = emu_msg_cb;\r
98 PicoMCDopenTray = emu_msg_tray_open;\r
99 PicoMCDcloseTray = menu_loop_tray;\r
100}\r
101\r
102\r
103static void scaling_update(void)\r
104{\r
105 PicoOpt &= ~0x4100;\r
106 switch (currentConfig.scaling) {\r
107 default: break; // off\r
108 case 1: // hw hor\r
109 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
110 case 3: PicoOpt |= 0x4000; break; // sw hor\r
111 }\r
112}\r
113\r
114\r
115void emu_Deinit(void)\r
116{\r
117 // save SRAM\r
118 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
119 emu_SaveLoadGame(0, 1);\r
120 SRam.changed = 0;\r
121 }\r
122\r
123 if (!(currentConfig.EmuOpt & 0x20)) {\r
124 config_writelrom(PicoConfigFile);\r
125#ifndef NO_SYNC\r
126 sync();\r
127#endif\r
128 }\r
129\r
130 free(PicoDraw2FB);\r
131\r
132 PicoExit();\r
133}\r
134\r
135void emu_prepareDefaultConfig(void)\r
136{\r
137 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
5d239ae7 138 defaultConfig.EmuOpt = 0x8f | 0x00600; // | <- confirm_save, cd_leds\r
de9b1274 139 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC;\r
140 defaultConfig.s_PicoOpt |= POPT_ACC_SPRITES|POPT_EN_MCD_GFX;\r
141 defaultConfig.s_PicoOpt &= ~POPT_EN_SVP_DRC; // crashes :(\r
5d239ae7 142 defaultConfig.EmuOpt &= ~8; // no save gzip\r
492d353a 143 defaultConfig.s_PsndRate = 44100;\r
5d239ae7 144 defaultConfig.s_PicoRegion = 0;\r
492d353a 145 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
146 defaultConfig.s_PicoCDBuffers = 0;\r
de9b1274 147 defaultConfig.Frameskip = 0;\r
492d353a 148 defaultConfig.CPUclock = 200;\r
149 defaultConfig.volume = 50;\r
150 defaultConfig.scaling = 0;\r
151 defaultConfig.turbo_rate = 15;\r
152}\r
153\r
154void emu_setDefaultConfig(void)\r
155{\r
156 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
157 PicoOpt = currentConfig.s_PicoOpt;\r
158 PsndRate = currentConfig.s_PsndRate;\r
159 PicoRegionOverride = currentConfig.s_PicoRegion;\r
160 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
161 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
162}\r
163\r
164static void textOut16(int x, int y, const char *text)\r
165{\r
166 int i,l,len=strlen(text);\r
167 unsigned int *screen = (unsigned int *)((unsigned short *)SCREEN_BUFFER + (x&~1) + y*SCREEN_WIDTH);\r
168\r
169 for (i = 0; i < len; i++)\r
170 {\r
de9b1274 171 for (l=0;l<16;)\r
492d353a 172 {\r
173 unsigned char fd = fontdata8x8[((text[i])*8)+l/2];\r
de9b1274 174 unsigned int *d = &screen[l*SCREEN_WIDTH/2];\r
175 if (fd&0x80) d[0]=0xffffffff;\r
176 if (fd&0x40) d[1]=0xffffffff;\r
177 if (fd&0x20) d[2]=0xffffffff;\r
178 if (fd&0x10) d[3]=0xffffffff;\r
179 if (fd&0x08) d[4]=0xffffffff;\r
180 if (fd&0x04) d[5]=0xffffffff;\r
181 if (fd&0x02) d[6]=0xffffffff;\r
182 if (fd&0x01) d[7]=0xffffffff;\r
183 l++; d = &screen[l*SCREEN_WIDTH/2];\r
184 if (fd&0x80) d[0]=0xffffffff;\r
185 if (fd&0x40) d[1]=0xffffffff;\r
186 if (fd&0x20) d[2]=0xffffffff;\r
187 if (fd&0x10) d[3]=0xffffffff;\r
188 if (fd&0x08) d[4]=0xffffffff;\r
189 if (fd&0x04) d[5]=0xffffffff;\r
190 if (fd&0x02) d[6]=0xffffffff;\r
191 if (fd&0x01) d[7]=0xffffffff;\r
192 l++;\r
492d353a 193 }\r
194 screen += 8;\r
195 }\r
196}\r
197\r
198\r
199void osd_text(int x, int y, const char *text)\r
200{\r
201 int len = strlen(text)*8;\r
202\r
203 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
204 int *p, i, h;\r
205 x &= ~3; // align x\r
206 len = (len+3) >> 2;\r
207 for (h = 0; h < 8; h++) {\r
208 p = (int *) ((unsigned char *) gp2x_screen+x+SCREEN_WIDTH*(y+h));\r
209 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
210 }\r
211 emu_textOut8(x, y, text);\r
212 } else {\r
213 int *p, i, h;\r
214 x &= ~1; // align x\r
215 len++;\r
216 for (h = 0; h < 16; h++) {\r
217 p = (int *) ((unsigned short *) gp2x_screen+x+SCREEN_WIDTH*(y+h));\r
de9b1274 218 for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r
492d353a 219 }\r
220 textOut16(x, y, text);\r
221 }\r
222}\r
223\r
224static void draw_cd_leds(void)\r
225{\r
226// static\r
227 int old_reg;\r
228// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
229 old_reg = Pico_mcd->s68k_regs[0];\r
230\r
231 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
232 // 8-bit modes\r
233 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
234 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
235 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+ 4) =\r
236 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+ 4) =\r
237 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+ 4) = col_g;\r
238 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+12) =\r
239 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+12) =\r
240 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+12) = col_r;\r
241 } else {\r
242 // 16-bit modes\r
243 unsigned int *p = (unsigned int *)((short *)gp2x_screen + SCREEN_WIDTH*2+4);\r
244 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
245 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
246 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;\r
247 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;\r
248 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
249 }\r
250}\r
251\r
252static void draw_pico_ptr(void)\r
253{\r
254 unsigned short *p = (unsigned short *)gp2x_screen;\r
255\r
256 // only if pen enabled and for 16bit modes\r
257 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
258\r
259 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
260 p += 32;\r
261\r
262 p += SCREEN_WIDTH * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
263 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
264 p[0] ^= 0xffff;\r
265 p[319] ^= 0xffff;\r
266 p[320] ^= 0xffff;\r
267 p[321] ^= 0xffff;\r
268 p[640] ^= 0xffff;\r
269}\r
270\r
de9b1274 271#ifdef USE_320_SCREEN\r
272\r
273static int EmuScanBegin16(unsigned int num)\r
274{\r
275 if (!(Pico.video.reg[1]&8)) num += 8;\r
276 DrawLineDest = (unsigned short *)gp2x_screen + num*800 + 800/2 - 320/2;\r
277 //int w = (Pico.video.reg[12]&1) ? 320 : 256;\r
278 //DrawLineDest = (unsigned short *)gp2x_screen + num*w;\r
279\r
280 return 0;\r
281}\r
282\r
283#else // USE_320_SCREEN\r
284\r
492d353a 285static int EmuScanEnd16(unsigned int num)\r
286{\r
287 unsigned char *ps=HighCol+8;\r
288 unsigned short *pd;\r
289 unsigned short *pal=HighPal;\r
290 int sh = Pico.video.reg[0xC]&8;\r
291 int len, mask = 0xff;\r
292\r
293 if (!(Pico.video.reg[1]&8)) num += 8;\r
294 pd=(unsigned short *)gp2x_screen + num*800*2 + 800/2 - 320*2/2;\r
295\r
296 if (Pico.m.dirtyPal)\r
297 PicoDoHighPal555(sh);\r
298\r
299 if (Pico.video.reg[12]&1) {\r
300 len = 320;\r
301 } else {\r
de9b1274 302 pd += 32*2;\r
492d353a 303 len = 256;\r
304 }\r
305\r
306 if (!sh && (rendstatus & PDRAW_ACC_SPRITES))\r
307 mask=0x3f; // accurate sprites, upper bits are priority stuff\r
308\r
de9b1274 309#if 1\r
310 clut_line(pd, ps, pal, (mask<<16) | len);\r
311#else\r
492d353a 312 for (; len > 0; len--)\r
313 {\r
314 unsigned int p = pal[*ps++ & mask];\r
315 p |= p << 16;\r
316 *(unsigned int *)pd = p;\r
317 *(unsigned int *)(&pd[800]) = p;\r
318 pd += 2;\r
319 }\r
de9b1274 320#endif\r
492d353a 321\r
322 return 0;\r
323}\r
324\r
de9b1274 325#endif // USE_320_SCREEN\r
326\r
492d353a 327static int EmuScanBegin8(unsigned int num)\r
328{\r
329 if (!(Pico.video.reg[1]&8)) num += 8;\r
330 DrawLineDest = (unsigned char *) gp2x_screen + SCREEN_WIDTH * num;\r
331\r
332 return 0;\r
333}\r
334\r
335int localPal[0x100];\r
336static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
337\r
338static void blit(const char *fps, const char *notice)\r
339{\r
340 int emu_opt = currentConfig.EmuOpt;\r
341\r
342 if (PicoOpt&0x10)\r
343 {\r
344 // 8bit fast renderer\r
345 if (Pico.m.dirtyPal) {\r
346 Pico.m.dirtyPal = 0;\r
347 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
348 // feed new palette to our device\r
349 gp2x_video_setpalette(localPal, 0x40);\r
350 }\r
351 // a hack for VR\r
352 if (PicoRead16Hook == PicoSVPRead16)\r
353 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
354 // do actual copy\r
355 vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);\r
356 }\r
357 else if (!(emu_opt&0x80))\r
358 {\r
359 // 8bit accurate renderer\r
360 if (Pico.m.dirtyPal)\r
361 {\r
362 int pallen = 0x40;\r
363 Pico.m.dirtyPal = 0;\r
364 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
365 {\r
366 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
367 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
368 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
369 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
370 pallen = 0x100;\r
371 }\r
372 else if (rendstatus & PDRAW_ACC_SPRITES) {\r
373 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
374 memcpy32(localPal+0x40, localPal, 0x40);\r
375 memcpy32(localPal+0x80, localPal, 0x40);\r
376 memcpy32(localPal+0xc0, localPal, 0x40);\r
377 pallen = 0x100;\r
378 }\r
379 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
380 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
381 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
382 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
383 pallen = 0xc0;\r
384 }\r
385 else {\r
386 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
387 }\r
388 if (pallen > 0xc0) {\r
389 localPal[0xc0] = 0x0000c000;\r
390 localPal[0xd0] = 0x00c00000;\r
391 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
392 localPal[0xf0] = 0x00ffffff;\r
393 }\r
394 gp2x_video_setpalette(localPal, pallen);\r
395 }\r
396 }\r
397\r
398 if (notice || (emu_opt & 2)) {\r
399 int h = SCREEN_HEIGHT-16;\r
400 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;\r
401 if (notice) osd_text(4, h, notice);\r
402 if (emu_opt & 2)\r
de9b1274 403 osd_text(osd_fps_x, h, fps);\r
492d353a 404 }\r
405 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
406 draw_cd_leds();\r
407 if (PicoAHW & PAHW_PICO)\r
408 draw_pico_ptr();\r
409{\r
410//static int u=0;\r
411//memset((char *)gp2x_screen+800*471*2, (u++)>>1, 800*9*2);\r
412}\r
413\r
414 //gp2x_video_wait_vsync();\r
415 gp2x_video_flip();\r
416}\r
417\r
418\r
419// clears whole screen or just the notice area (in all buffers)\r
420static void clearArea(int full)\r
421{\r
422 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
423 // 8-bit renderers\r
424 if (full) gp2x_memset_all_buffers(0, 0xe0, SCREEN_WIDTH*240);\r
425 else gp2x_memset_all_buffers(SCREEN_WIDTH*232, 0xe0, SCREEN_WIDTH*8);\r
426 } else {\r
427 // 16bit accurate renderer\r
428 if (full) gp2x_memset_all_buffers(0, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);\r
429 else gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);\r
430 }\r
431}\r
432\r
433\r
434static void vidResetMode(void)\r
435{\r
436 if (PicoOpt&0x10) {\r
437 gp2x_video_changemode(8);\r
438 } else if (currentConfig.EmuOpt&0x80) {\r
439 gp2x_video_changemode(16);\r
de9b1274 440#ifdef USE_320_SCREEN\r
441 PicoDrawSetColorFormat(1);\r
442 PicoScanBegin = EmuScanBegin16;\r
443#else\r
492d353a 444 PicoDrawSetColorFormat(-1);\r
445 PicoScanEnd = EmuScanEnd16;\r
de9b1274 446#endif\r
492d353a 447 } else {\r
448 gp2x_video_changemode(8);\r
449 PicoDrawSetColorFormat(2);\r
450 PicoScanBegin = EmuScanBegin8;\r
451 }\r
452 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
453 // setup pal for 8-bit modes\r
454 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
455 localPal[0xd0] = 0x00c00000;\r
456 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
457 localPal[0xf0] = 0x00ffffff;\r
458 gp2x_video_setpalette(localPal, 0x100);\r
459 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
460 gp2x_video_flip();\r
461 }\r
462 Pico.m.dirtyPal = 1;\r
463 // reset scaling\r
464 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
465 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
466 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
467}\r
468\r
469\r
470static void emu_msg_cb(const char *msg)\r
471{\r
472 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
473 // 8-bit renderers\r
474 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16), 0xe0, SCREEN_WIDTH*16);\r
475 osd_text(4, SCREEN_HEIGHT-16, msg);\r
476 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16),\r
477 SCREEN_WIDTH*(SCREEN_HEIGHT-16), SCREEN_WIDTH*16);\r
478 } else {\r
479 // 16bit accurate renderer\r
480 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);\r
481 osd_text(4, SCREEN_HEIGHT-16, msg);\r
482 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2,\r
483 SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, SCREEN_WIDTH*16*2);\r
484 }\r
485 gettimeofday(&noticeMsgTime, 0);\r
486 noticeMsgTime.tv_sec -= 2;\r
487\r
488 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
489 reset_timing = 1;\r
490}\r
491\r
492static void emu_state_cb(const char *str)\r
493{\r
494 clearArea(0);\r
495 blit("", str);\r
496}\r
497\r
498static void emu_msg_tray_open(void)\r
499{\r
500 strcpy(noticeMsg, "CD tray opened");\r
501 gettimeofday(&noticeMsgTime, 0);\r
502}\r
503\r
504static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)\r
505{\r
506 int ret, px, py, lim_x;\r
507 static int pdown_frames = 0;\r
508\r
509 emu_RunEventsPico(events);\r
510\r
511 if (pico_inp_mode == 0) return;\r
512\r
513 // for F200\r
514 ret = gp2x_touchpad_read(&px, &py);\r
515 if (ret >= 0)\r
516 {\r
517 if (ret > 35000)\r
518 {\r
519 if (pdown_frames++ > 5)\r
520 PicoPad[0] |= 0x20;\r
521\r
522 pico_pen_x = px;\r
523 pico_pen_y = py;\r
524 if (!(Pico.video.reg[12]&1)) {\r
525 pico_pen_x -= 32;\r
526 if (pico_pen_x < 0) pico_pen_x = 0;\r
527 if (pico_pen_x > 248) pico_pen_x = 248;\r
528 }\r
529 if (pico_pen_y > 224) pico_pen_y = 224;\r
530 }\r
531 else\r
532 pdown_frames = 0;\r
533\r
534 //if (ret == 0)\r
535 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
536 }\r
537\r
538 PicoPad[0] &= ~0x0f; // release UDLR\r
539 if (gp2x_keys & GP2X_UP) pico_pen_y--;\r
540 if (gp2x_keys & GP2X_DOWN) pico_pen_y++;\r
541 if (gp2x_keys & GP2X_LEFT) pico_pen_x--;\r
542 if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;\r
543\r
544 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
545 if (pico_pen_y < 8) pico_pen_y = 8;\r
546 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
547 if (pico_pen_x < 0) pico_pen_x = 0;\r
548 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
549\r
550 PicoPicohw.pen_pos[0] = pico_pen_x;\r
551 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
552 PicoPicohw.pen_pos[0] += 0x3c;\r
553 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
554}\r
555\r
556static void update_volume(int has_changed, int is_up)\r
557{\r
558 static int prev_frame = 0, wait_frames = 0;\r
559 int vol = currentConfig.volume;\r
560\r
561 if (has_changed)\r
562 {\r
563 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
564 wait_frames++;\r
565 else {\r
566 if (is_up) {\r
567 if (vol < 99) vol++;\r
568 } else {\r
569 if (vol > 0) vol--;\r
570 }\r
571 wait_frames = 0;\r
572 gp2x_sound_volume(vol, vol);\r
573 currentConfig.volume = vol;\r
574 }\r
575 sprintf(noticeMsg, "VOL: %02i", vol);\r
576 gettimeofday(&noticeMsgTime, 0);\r
577 prev_frame = Pico.m.frame_count;\r
578 }\r
579\r
580 // set the right mixer func\r
581 if (!(PicoOpt&8)) return; // just use defaults for mono\r
582 if (vol >= 5)\r
583 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
584 else {\r
585 mix_32_to_16l_level = 5 - vol;\r
586 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
587 }\r
588}\r
589\r
590static void RunEvents(unsigned int which)\r
591{\r
592 if (which & 0x1800) // save or load (but not both)\r
593 {\r
594 int do_it = 1;\r
595 if ( emu_checkSaveFile(state_slot) &&\r
596 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
597 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
598 unsigned long keys;\r
599 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
600 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
601 usleep(50*1024);\r
602 if (keys & GP2X_X) do_it = 0;\r
603 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release\r
604 usleep(50*1024);\r
605 clearArea(0);\r
606 }\r
607 if (do_it) {\r
608 osd_text(4, SCREEN_HEIGHT-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
609 PicoStateProgressCB = emu_state_cb;\r
610 gp2x_memcpy_all_buffers(gp2x_screen, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);\r
611 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
612 PicoStateProgressCB = NULL;\r
613 }\r
614\r
615 reset_timing = 1;\r
616 }\r
617 if (which & 0x0400) // switch renderer\r
618 {\r
619 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
620 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
621 else currentConfig.EmuOpt &= ~0x80;\r
622\r
623 vidResetMode();\r
624\r
625 if (PicoOpt&0x10) {\r
626 strcpy(noticeMsg, " 8bit fast renderer");\r
627 } else if (currentConfig.EmuOpt&0x80) {\r
628 strcpy(noticeMsg, "16bit accurate renderer");\r
629 } else {\r
630 strcpy(noticeMsg, " 8bit accurate renderer");\r
631 }\r
632\r
633 gettimeofday(&noticeMsgTime, 0);\r
634 }\r
635 if (which & 0x0300)\r
636 {\r
637 if(which&0x0200) {\r
638 state_slot -= 1;\r
639 if(state_slot < 0) state_slot = 9;\r
640 } else {\r
641 state_slot += 1;\r
642 if(state_slot > 9) state_slot = 0;\r
643 }\r
644 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
645 gettimeofday(&noticeMsgTime, 0);\r
646 }\r
647 if (which & 0x0080) {\r
648 engineState = PGS_Menu;\r
649 }\r
650}\r
651\r
652static void updateKeys(void)\r
653{\r
654 unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;\r
655 static unsigned int prevEvents = 0;\r
656 int joy, i;\r
657\r
658 keys = gp2x_joystick_read(0);\r
659 if (keys & GP2X_SELECT) {\r
660 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
661 // wait until select is released, so menu would not resume game\r
662 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
663 }\r
664\r
665 keys &= CONFIGURABLE_KEYS;\r
666 keys2 = keys;\r
667\r
668 for (i = 0; i < 32; i++)\r
669 {\r
670 if (keys2 & (1 << i))\r
671 {\r
672 int pl, acts = currentConfig.KeyBinds[i];\r
673 if (!acts) continue;\r
674 pl = (acts >> 16) & 1;\r
675 if (kb_combo_keys & (1 << i))\r
676 {\r
677 int u = i+1, acts_c = acts & kb_combo_acts;\r
678 // let's try to find the other one\r
679 if (acts_c) {\r
680 for (; u < 32; u++)\r
681 if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {\r
682 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];\r
683 keys2 &= ~((1 << i) | (1 << u));\r
684 break;\r
685 }\r
686 }\r
687 // add non-combo actions if combo ones were not found\r
688 if (!acts_c || u == 32)\r
689 allActions[pl] |= acts & ~kb_combo_acts;\r
690 } else {\r
691 allActions[pl] |= acts;\r
692 }\r
693 }\r
694 }\r
695\r
696 // add joy inputs\r
697 if (num_of_joys > 0)\r
698 {\r
699 gp2x_usbjoy_update();\r
700 for (joy = 0; joy < num_of_joys; joy++) {\r
701 int btns = gp2x_usbjoy_check2(joy);\r
702 for (i = 0; i < 32; i++) {\r
703 if (btns & (1 << i)) {\r
704 int acts = currentConfig.JoyBinds[joy][i];\r
705 int pl = (acts >> 16) & 1;\r
706 allActions[pl] |= acts;\r
707 }\r
708 }\r
709 }\r
710 }\r
711\r
712 PicoPad[0] = allActions[0] & 0xfff;\r
713 PicoPad[1] = allActions[1] & 0xfff;\r
714\r
715 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
716 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
717\r
718 events = (allActions[0] | allActions[1]) >> 16;\r
719\r
720 // volume is treated in special way and triggered every frame\r
721 if (events & 0x6000)\r
722 update_volume(1, events & 0x2000);\r
723\r
724 if ((events ^ prevEvents) & 0x40) {\r
725 emu_changeFastForward(events & 0x40);\r
726 update_volume(0, 0);\r
727 reset_timing = 1;\r
728 }\r
729\r
730 events &= ~prevEvents;\r
731\r
732 if (PicoAHW == PAHW_PICO)\r
733 RunEventsPico(events, keys);\r
734 if (events) RunEvents(events);\r
735 if (movie_data) emu_updateMovie();\r
736\r
737 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
738}\r
739\r
740\r
741static void updateSound(int len)\r
742{\r
743 if (PicoOpt&8) len<<=1;\r
744\r
745 /* avoid writing audio when lagging behind to prevent audio lag */\r
746 if (PicoSkipFrame != 2)\r
747 gp2x_sound_write(PsndOut, len<<1);\r
748}\r
749\r
750\r
751static void SkipFrame(int do_audio)\r
752{\r
753 PicoSkipFrame=do_audio ? 1 : 2;\r
754 PicoFrame();\r
755 PicoSkipFrame=0;\r
756}\r
757\r
758\r
759void emu_forcedFrame(int opts)\r
760{\r
761 int po_old = PicoOpt;\r
762 int eo_old = currentConfig.EmuOpt;\r
763\r
764 PicoOpt &= ~0x10;\r
765 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
766 currentConfig.EmuOpt |= 0x80;\r
767\r
768 //vidResetMode();\r
de9b1274 769#ifdef USE_320_SCREEN\r
770 PicoDrawSetColorFormat(1);\r
771 PicoScanBegin = EmuScanBegin16;\r
772#else\r
492d353a 773 PicoDrawSetColorFormat(-1);\r
774 PicoScanEnd = EmuScanEnd16;\r
de9b1274 775#endif\r
492d353a 776 Pico.m.dirtyPal = 1;\r
777 PicoFrameDrawOnly();\r
778\r
779/*\r
780 if (!(Pico.video.reg[12]&1)) {\r
781 vidCpyM2 = vidCpyM2_32col;\r
782 clearArea(1);\r
783 } else vidCpyM2 = vidCpyM2_40col;\r
784\r
785 vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);\r
786 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
787 gp2x_video_setpalette(localPal, 0x40);\r
788*/\r
789 PicoOpt = po_old;\r
790 currentConfig.EmuOpt = eo_old;\r
791}\r
792\r
793static void simpleWait(int thissec, int lim_time)\r
794{\r
795 struct timeval tval;\r
796\r
797 spend_cycles(1024);\r
798 gettimeofday(&tval, 0);\r
799 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
800\r
801 while (tval.tv_usec < lim_time)\r
802 {\r
803 spend_cycles(1024);\r
804 gettimeofday(&tval, 0);\r
805 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
806 }\r
807}\r
808\r
809\r
810void emu_Loop(void)\r
811{\r
812 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
813 char fpsbuff[24]; // fps count c string\r
814 struct timeval tval; // timing\r
815 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
816 int frames_done, frames_shown, thissec; // actual frames\r
817 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
818 char *notice = 0;\r
819\r
820 printf("entered emu_Loop()\n");\r
821\r
822 fpsbuff[0] = 0;\r
823\r
824 // make sure we are in correct mode\r
825 vidResetMode();\r
826 scaling_update();\r
827 Pico.m.dirtyPal = 1;\r
828 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
829 emu_findKeyBindCombos();\r
830\r
831 // pal/ntsc might have changed, reset related stuff\r
832 target_fps = Pico.m.pal ? 50 : 60;\r
833 target_frametime = 1000000/target_fps;\r
834 reset_timing = 1;\r
835\r
836 // prepare sound stuff\r
837 if (currentConfig.EmuOpt & 4)\r
838 {\r
839 int snd_excess_add;\r
840 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)\r
841 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
842\r
843 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
844 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
845 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
846 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
847 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
848 PicoWriteSound = updateSound;\r
849 update_volume(0, 0);\r
850 memset(sndBuffer, 0, sizeof(sndBuffer));\r
851 PsndOut = sndBuffer;\r
852 PsndRate_old = PsndRate;\r
853 PicoOpt_old = PicoOpt;\r
854 pal_old = Pico.m.pal;\r
855 } else {\r
856 PsndOut = NULL;\r
857 }\r
858\r
859 // prepare CD buffer\r
860 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
861\r
862 // calc vsync offset to sync timing code with vsync\r
863 if (currentConfig.EmuOpt&0x2000) {\r
864 gettimeofday(&tval, 0);\r
865 gp2x_video_wait_vsync();\r
866 gettimeofday(&tval, 0);\r
867 vsync_offset = tval.tv_usec;\r
868 while (vsync_offset >= target_frametime)\r
869 vsync_offset -= target_frametime;\r
870 if (!vsync_offset) vsync_offset++;\r
871 printf("vsync_offset: %i\n", vsync_offset);\r
872 } else\r
873 vsync_offset = 0;\r
874\r
875 frames_done = frames_shown = thissec =\r
876 pframes_done = pframes_shown = pthissec = 0;\r
877\r
878 // loop\r
879 while (engineState == PGS_Running)\r
880 {\r
881 int modes;\r
882\r
883 gettimeofday(&tval, 0);\r
884 if (reset_timing) {\r
885 reset_timing = 0;\r
886 pthissec = tval.tv_sec;\r
887 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
888 }\r
889\r
890 // show notice message?\r
891 if (noticeMsgTime.tv_sec)\r
892 {\r
893 static int noticeMsgSum;\r
894 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
895 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
896 clearArea(0);\r
897 notice = 0;\r
898 } else {\r
899 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
900 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
901 notice = noticeMsg;\r
902 }\r
903 }\r
904\r
905 // check for mode changes\r
906 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
907 if (modes != oldmodes)\r
908 {\r
909 int scalex = SCREEN_WIDTH;\r
910 osd_fps_x = OSD_FPS_X;\r
911 if (modes & 4) {\r
912 vidCpyM2 = vidCpyM2_40col;\r
913 } else {\r
914 if (PicoOpt & 0x100) {\r
915 vidCpyM2 = vidCpyM2_32col_nobord;\r
916 scalex = 256;\r
917 osd_fps_x = OSD_FPS_X - 64;\r
918 } else {\r
919 vidCpyM2 = vidCpyM2_32col;\r
920 }\r
921 }\r
922 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
923 gp2x_video_RGB_setscaling(8, scalex, 224);\r
924 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
925 oldmodes = modes;\r
926 clearArea(1);\r
927 }\r
928\r
929 // second changed?\r
930 if (thissec != tval.tv_sec)\r
931 {\r
932#ifdef BENCHMARK\r
933 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
de9b1274 934 if (++bench == 4) {\r
492d353a 935 bench = 0;\r
de9b1274 936 bench_fps_s = bench_fps / 4;\r
937 bf[bfp++ & 3] = bench_fps / 4;\r
492d353a 938 bench_fps = 0;\r
939 }\r
940 bench_fps += frames_shown;\r
de9b1274 941 sprintf(fpsbuff, "%3i/%3i/%3i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
5d239ae7 942 printf("%s\n", fpsbuff);\r
492d353a 943#else\r
944 if (currentConfig.EmuOpt & 2) {\r
de9b1274 945 sprintf(fpsbuff, "%3i/%3i", frames_shown, frames_done);\r
492d353a 946 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
947 }\r
948#endif\r
949 frames_shown = frames_done = 0;\r
950 thissec = tval.tv_sec;\r
951 }\r
952#ifdef PFRAMES\r
953 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
954#endif\r
955\r
956 if (pthissec != tval.tv_sec)\r
957 {\r
958 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
959 pframes_done = pframes_shown = 0;\r
960 } else {\r
961 // it is quite common for this implementation to leave 1 fame unfinished\r
962 // when second changes, but we don't want buffer to starve.\r
963 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
964 updateKeys();\r
965 SkipFrame(1); pframes_done++;\r
966 }\r
967\r
968 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
969 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
970 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
971 }\r
972 pthissec = tval.tv_sec;\r
973 }\r
974\r
975 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
976 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
977 {\r
978 for(i = 0; i < currentConfig.Frameskip; i++) {\r
979 updateKeys();\r
980 SkipFrame(1); pframes_done++; frames_done++;\r
981 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
982 gettimeofday(&tval, 0);\r
983 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
984 if (tval.tv_usec < lim_time) { // we are too fast\r
985 simpleWait(pthissec, lim_time);\r
986 }\r
987 }\r
988 lim_time += target_frametime;\r
989 }\r
990 }\r
991 else if (tval.tv_usec > lim_time) // auto frameskip\r
992 {\r
993 // no time left for this frame - skip\r
994 if (tval.tv_usec - lim_time >= 300000) {\r
995 /* something caused a slowdown for us (disk access? cache flush?)\r
996 * try to recover by resetting timing... */\r
997 reset_timing = 1;\r
998 continue;\r
999 }\r
1000 updateKeys();\r
1001 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
1002 continue;\r
1003 }\r
1004\r
1005 updateKeys();\r
1006 PicoFrame();\r
1007\r
1008 // check time\r
1009 gettimeofday(&tval, 0);\r
1010 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1011\r
1012 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
1013 reset_timing = 1;\r
1014/* else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
1015 {\r
1016 // sleep or vsync if we are still too fast\r
1017 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
1018 if (!reset_timing && tval.tv_usec < lim_time)\r
1019 {\r
1020 // we are too fast\r
1021 if (vsync_offset) {\r
1022 if (lim_time - tval.tv_usec > target_frametime/2)\r
1023 simpleWait(pthissec, lim_time - target_frametime/4);\r
1024 gp2x_video_wait_vsync();\r
1025 } else {\r
1026 simpleWait(pthissec, lim_time);\r
1027 }\r
1028 }\r
1029 }\r
1030*/\r
1031 blit(fpsbuff, notice);\r
1032\r
1033 pframes_done++; pframes_shown++;\r
1034 frames_done++; frames_shown++;\r
1035 }\r
1036\r
1037 emu_changeFastForward(0);\r
1038\r
1039 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
1040\r
1041 // save SRAM\r
1042 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
1043 emu_state_cb("Writing SRAM/BRAM..");\r
1044 emu_SaveLoadGame(0, 1);\r
1045 SRam.changed = 0;\r
1046 }\r
1047\r
1048 // if in 8bit mode, generate 16bit image for menu background\r
1049 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
1050 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
1051}\r
1052\r
1053\r
1054void emu_ResetGame(void)\r
1055{\r
1056 PicoReset();\r
1057 reset_timing = 1;\r
1058}\r
1059\r
PicoDrive's frontend in a lib