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extracted OSS code to sndout_oss_*, BTN->PBTN, refactoring
[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
492d353a 18#include "../gp2x/menu.h"\r
19#include "../common/arm_utils.h"\r
20#include "../common/fonts.h"\r
21#include "../common/emu.h"\r
22#include "../common/config.h"\r
23#include "../common/common.h"\r
b3972d82 24#include "../linux/usbjoy.h"\r
25#include "../linux/sndout_oss.h"\r
de9b1274 26#include "asm_utils.h"\r
492d353a 27\r
f11bad75 28#include <pico/pico_int.h>\r
29#include <pico/patch.h>\r
30#include <pico/sound/mix.h>\r
492d353a 31#include <zlib/zlib.h>\r
32\r
33//#define PFRAMES\r
de9b1274 34#define BENCHMARK\r
35//#define USE_320_SCREEN 1\r
492d353a 36\r
37#ifdef BENCHMARK\r
38#define OSD_FPS_X (800-200)\r
39#else\r
40#define OSD_FPS_X (800-120)\r
41#endif\r
42\r
43\r
44int engineState;\r
45int select_exits = 0;\r
46\r
47char romFileName[PATH_MAX];\r
48\r
49static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
50static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
51static int osd_fps_x;\r
492d353a 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
36f6fd5a 68int emu_getMainDir(char *dst, int len)\r
492d353a 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
36f6fd5a 79\r
80 return j + 1;\r
492d353a 81}\r
82\r
83void emu_Init(void)\r
84{\r
85 // make temp buffer for alt renderer\r
86 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
87 if (!PicoDraw2FB)\r
88 {\r
89 printf("PicoDraw2FB == 0\n");\r
90 }\r
91\r
92 // make dirs for saves, cfgs, etc.\r
93 mkdir("mds", 0777);\r
94 mkdir("srm", 0777);\r
95 mkdir("brm", 0777);\r
96 mkdir("cfg", 0777);\r
97\r
98 PicoInit();\r
99 PicoMessage = emu_msg_cb;\r
100 PicoMCDopenTray = emu_msg_tray_open;\r
101 PicoMCDcloseTray = menu_loop_tray;\r
102}\r
103\r
104\r
105static void scaling_update(void)\r
106{\r
107 PicoOpt &= ~0x4100;\r
108 switch (currentConfig.scaling) {\r
109 default: break; // off\r
110 case 1: // hw hor\r
111 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
112 case 3: PicoOpt |= 0x4000; break; // sw hor\r
113 }\r
114}\r
115\r
116\r
117void emu_Deinit(void)\r
118{\r
119 // save SRAM\r
120 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
121 emu_SaveLoadGame(0, 1);\r
122 SRam.changed = 0;\r
123 }\r
124\r
125 if (!(currentConfig.EmuOpt & 0x20)) {\r
126 config_writelrom(PicoConfigFile);\r
127#ifndef NO_SYNC\r
128 sync();\r
129#endif\r
130 }\r
131\r
132 free(PicoDraw2FB);\r
133\r
134 PicoExit();\r
135}\r
136\r
137void emu_prepareDefaultConfig(void)\r
138{\r
139 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
5d239ae7 140 defaultConfig.EmuOpt = 0x8f | 0x00600; // | <- confirm_save, cd_leds\r
de9b1274 141 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC;\r
142 defaultConfig.s_PicoOpt |= POPT_ACC_SPRITES|POPT_EN_MCD_GFX;\r
095a240b 143// defaultConfig.s_PicoOpt &= ~POPT_EN_SVP_DRC; // crashes :(\r
5d239ae7 144 defaultConfig.EmuOpt &= ~8; // no save gzip\r
492d353a 145 defaultConfig.s_PsndRate = 44100;\r
5d239ae7 146 defaultConfig.s_PicoRegion = 0;\r
492d353a 147 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
148 defaultConfig.s_PicoCDBuffers = 0;\r
de9b1274 149 defaultConfig.Frameskip = 0;\r
492d353a 150 defaultConfig.CPUclock = 200;\r
151 defaultConfig.volume = 50;\r
152 defaultConfig.scaling = 0;\r
153 defaultConfig.turbo_rate = 15;\r
154}\r
155\r
492d353a 156static void textOut16(int x, int y, const char *text)\r
157{\r
158 int i,l,len=strlen(text);\r
159 unsigned int *screen = (unsigned int *)((unsigned short *)SCREEN_BUFFER + (x&~1) + y*SCREEN_WIDTH);\r
160\r
161 for (i = 0; i < len; i++)\r
162 {\r
de9b1274 163 for (l=0;l<16;)\r
492d353a 164 {\r
165 unsigned char fd = fontdata8x8[((text[i])*8)+l/2];\r
de9b1274 166 unsigned int *d = &screen[l*SCREEN_WIDTH/2];\r
167 if (fd&0x80) d[0]=0xffffffff;\r
168 if (fd&0x40) d[1]=0xffffffff;\r
169 if (fd&0x20) d[2]=0xffffffff;\r
170 if (fd&0x10) d[3]=0xffffffff;\r
171 if (fd&0x08) d[4]=0xffffffff;\r
172 if (fd&0x04) d[5]=0xffffffff;\r
173 if (fd&0x02) d[6]=0xffffffff;\r
174 if (fd&0x01) d[7]=0xffffffff;\r
175 l++; d = &screen[l*SCREEN_WIDTH/2];\r
176 if (fd&0x80) d[0]=0xffffffff;\r
177 if (fd&0x40) d[1]=0xffffffff;\r
178 if (fd&0x20) d[2]=0xffffffff;\r
179 if (fd&0x10) d[3]=0xffffffff;\r
180 if (fd&0x08) d[4]=0xffffffff;\r
181 if (fd&0x04) d[5]=0xffffffff;\r
182 if (fd&0x02) d[6]=0xffffffff;\r
183 if (fd&0x01) d[7]=0xffffffff;\r
184 l++;\r
492d353a 185 }\r
186 screen += 8;\r
187 }\r
188}\r
189\r
190\r
191void osd_text(int x, int y, const char *text)\r
192{\r
193 int len = strlen(text)*8;\r
194\r
195 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
196 int *p, i, h;\r
197 x &= ~3; // align x\r
198 len = (len+3) >> 2;\r
199 for (h = 0; h < 8; h++) {\r
200 p = (int *) ((unsigned char *) gp2x_screen+x+SCREEN_WIDTH*(y+h));\r
201 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
202 }\r
203 emu_textOut8(x, y, text);\r
204 } else {\r
205 int *p, i, h;\r
206 x &= ~1; // align x\r
207 len++;\r
208 for (h = 0; h < 16; h++) {\r
209 p = (int *) ((unsigned short *) gp2x_screen+x+SCREEN_WIDTH*(y+h));\r
de9b1274 210 for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r
492d353a 211 }\r
212 textOut16(x, y, text);\r
213 }\r
214}\r
215\r
216static void draw_cd_leds(void)\r
217{\r
218// static\r
219 int old_reg;\r
220// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
221 old_reg = Pico_mcd->s68k_regs[0];\r
222\r
223 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
224 // 8-bit modes\r
225 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
226 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
227 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+ 4) =\r
228 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+ 4) =\r
229 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+ 4) = col_g;\r
230 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+12) =\r
231 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+12) =\r
232 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+12) = col_r;\r
233 } else {\r
234 // 16-bit modes\r
235 unsigned int *p = (unsigned int *)((short *)gp2x_screen + SCREEN_WIDTH*2+4);\r
236 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
237 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
238 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;\r
239 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;\r
240 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
241 }\r
242}\r
243\r
244static void draw_pico_ptr(void)\r
245{\r
246 unsigned short *p = (unsigned short *)gp2x_screen;\r
247\r
248 // only if pen enabled and for 16bit modes\r
249 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
250\r
251 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
252 p += 32;\r
253\r
254 p += SCREEN_WIDTH * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
255 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
256 p[0] ^= 0xffff;\r
257 p[319] ^= 0xffff;\r
258 p[320] ^= 0xffff;\r
259 p[321] ^= 0xffff;\r
260 p[640] ^= 0xffff;\r
261}\r
262\r
de9b1274 263#ifdef USE_320_SCREEN\r
264\r
265static int EmuScanBegin16(unsigned int num)\r
266{\r
267 if (!(Pico.video.reg[1]&8)) num += 8;\r
268 DrawLineDest = (unsigned short *)gp2x_screen + num*800 + 800/2 - 320/2;\r
269 //int w = (Pico.video.reg[12]&1) ? 320 : 256;\r
270 //DrawLineDest = (unsigned short *)gp2x_screen + num*w;\r
271\r
272 return 0;\r
273}\r
274\r
275#else // USE_320_SCREEN\r
276\r
492d353a 277static int EmuScanEnd16(unsigned int num)\r
278{\r
279 unsigned char *ps=HighCol+8;\r
280 unsigned short *pd;\r
281 unsigned short *pal=HighPal;\r
282 int sh = Pico.video.reg[0xC]&8;\r
283 int len, mask = 0xff;\r
284\r
285 if (!(Pico.video.reg[1]&8)) num += 8;\r
286 pd=(unsigned short *)gp2x_screen + num*800*2 + 800/2 - 320*2/2;\r
287\r
288 if (Pico.m.dirtyPal)\r
289 PicoDoHighPal555(sh);\r
290\r
291 if (Pico.video.reg[12]&1) {\r
292 len = 320;\r
293 } else {\r
de9b1274 294 pd += 32*2;\r
492d353a 295 len = 256;\r
296 }\r
297\r
f11bad75 298 if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r
299 mask=0x3f; // messed sprites, upper bits are priority stuff\r
492d353a 300\r
de9b1274 301#if 1\r
302 clut_line(pd, ps, pal, (mask<<16) | len);\r
303#else\r
492d353a 304 for (; len > 0; len--)\r
305 {\r
306 unsigned int p = pal[*ps++ & mask];\r
307 p |= p << 16;\r
308 *(unsigned int *)pd = p;\r
309 *(unsigned int *)(&pd[800]) = p;\r
310 pd += 2;\r
311 }\r
de9b1274 312#endif\r
492d353a 313\r
314 return 0;\r
315}\r
316\r
de9b1274 317#endif // USE_320_SCREEN\r
318\r
492d353a 319static int EmuScanBegin8(unsigned int num)\r
320{\r
321 if (!(Pico.video.reg[1]&8)) num += 8;\r
322 DrawLineDest = (unsigned char *) gp2x_screen + SCREEN_WIDTH * num;\r
323\r
324 return 0;\r
325}\r
326\r
327int localPal[0x100];\r
328static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
329\r
330static void blit(const char *fps, const char *notice)\r
331{\r
332 int emu_opt = currentConfig.EmuOpt;\r
333\r
334 if (PicoOpt&0x10)\r
335 {\r
336 // 8bit fast renderer\r
337 if (Pico.m.dirtyPal) {\r
338 Pico.m.dirtyPal = 0;\r
339 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
340 // feed new palette to our device\r
341 gp2x_video_setpalette(localPal, 0x40);\r
342 }\r
343 // a hack for VR\r
344 if (PicoRead16Hook == PicoSVPRead16)\r
345 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
346 // do actual copy\r
347 vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);\r
348 }\r
349 else if (!(emu_opt&0x80))\r
350 {\r
351 // 8bit accurate renderer\r
352 if (Pico.m.dirtyPal)\r
353 {\r
61f66fe0 354 int pallen = 0xc0;\r
492d353a 355 Pico.m.dirtyPal = 0;\r
356 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
357 {\r
358 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
359 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
360 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
361 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
362 pallen = 0x100;\r
363 }\r
492d353a 364 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
365 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
366 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
367 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
368 pallen = 0xc0;\r
369 }\r
370 else {\r
371 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
61f66fe0 372 memcpy32(localPal+0x80, localPal, 0x40);\r
492d353a 373 }\r
374 if (pallen > 0xc0) {\r
375 localPal[0xc0] = 0x0000c000;\r
376 localPal[0xd0] = 0x00c00000;\r
377 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
378 localPal[0xf0] = 0x00ffffff;\r
379 }\r
380 gp2x_video_setpalette(localPal, pallen);\r
381 }\r
382 }\r
383\r
384 if (notice || (emu_opt & 2)) {\r
385 int h = SCREEN_HEIGHT-16;\r
386 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;\r
387 if (notice) osd_text(4, h, notice);\r
388 if (emu_opt & 2)\r
de9b1274 389 osd_text(osd_fps_x, h, fps);\r
492d353a 390 }\r
391 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
392 draw_cd_leds();\r
393 if (PicoAHW & PAHW_PICO)\r
394 draw_pico_ptr();\r
395{\r
396//static int u=0;\r
397//memset((char *)gp2x_screen+800*471*2, (u++)>>1, 800*9*2);\r
398}\r
399\r
400 //gp2x_video_wait_vsync();\r
401 gp2x_video_flip();\r
402}\r
403\r
404\r
405// clears whole screen or just the notice area (in all buffers)\r
406static void clearArea(int full)\r
407{\r
408 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
409 // 8-bit renderers\r
410 if (full) gp2x_memset_all_buffers(0, 0xe0, SCREEN_WIDTH*240);\r
411 else gp2x_memset_all_buffers(SCREEN_WIDTH*232, 0xe0, SCREEN_WIDTH*8);\r
412 } else {\r
413 // 16bit accurate renderer\r
414 if (full) gp2x_memset_all_buffers(0, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);\r
415 else gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);\r
416 }\r
417}\r
418\r
419\r
420static void vidResetMode(void)\r
421{\r
422 if (PicoOpt&0x10) {\r
423 gp2x_video_changemode(8);\r
424 } else if (currentConfig.EmuOpt&0x80) {\r
425 gp2x_video_changemode(16);\r
de9b1274 426#ifdef USE_320_SCREEN\r
427 PicoDrawSetColorFormat(1);\r
428 PicoScanBegin = EmuScanBegin16;\r
429#else\r
492d353a 430 PicoDrawSetColorFormat(-1);\r
431 PicoScanEnd = EmuScanEnd16;\r
de9b1274 432#endif\r
492d353a 433 } else {\r
434 gp2x_video_changemode(8);\r
435 PicoDrawSetColorFormat(2);\r
436 PicoScanBegin = EmuScanBegin8;\r
437 }\r
438 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
439 // setup pal for 8-bit modes\r
440 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
441 localPal[0xd0] = 0x00c00000;\r
442 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
443 localPal[0xf0] = 0x00ffffff;\r
444 gp2x_video_setpalette(localPal, 0x100);\r
445 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
446 gp2x_video_flip();\r
447 }\r
448 Pico.m.dirtyPal = 1;\r
449 // reset scaling\r
450 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
451 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
452 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
453}\r
454\r
455\r
456static void emu_msg_cb(const char *msg)\r
457{\r
458 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
459 // 8-bit renderers\r
460 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16), 0xe0, SCREEN_WIDTH*16);\r
461 osd_text(4, SCREEN_HEIGHT-16, msg);\r
462 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16),\r
463 SCREEN_WIDTH*(SCREEN_HEIGHT-16), SCREEN_WIDTH*16);\r
464 } else {\r
465 // 16bit accurate renderer\r
466 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);\r
467 osd_text(4, SCREEN_HEIGHT-16, msg);\r
468 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2,\r
469 SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, SCREEN_WIDTH*16*2);\r
470 }\r
471 gettimeofday(&noticeMsgTime, 0);\r
472 noticeMsgTime.tv_sec -= 2;\r
473\r
474 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
475 reset_timing = 1;\r
476}\r
477\r
478static void emu_state_cb(const char *str)\r
479{\r
480 clearArea(0);\r
481 blit("", str);\r
482}\r
483\r
484static void emu_msg_tray_open(void)\r
485{\r
486 strcpy(noticeMsg, "CD tray opened");\r
487 gettimeofday(&noticeMsgTime, 0);\r
488}\r
489\r
490static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)\r
491{\r
492 int ret, px, py, lim_x;\r
493 static int pdown_frames = 0;\r
494\r
495 emu_RunEventsPico(events);\r
496\r
497 if (pico_inp_mode == 0) return;\r
498\r
499 // for F200\r
500 ret = gp2x_touchpad_read(&px, &py);\r
501 if (ret >= 0)\r
502 {\r
503 if (ret > 35000)\r
504 {\r
505 if (pdown_frames++ > 5)\r
506 PicoPad[0] |= 0x20;\r
507\r
508 pico_pen_x = px;\r
509 pico_pen_y = py;\r
510 if (!(Pico.video.reg[12]&1)) {\r
511 pico_pen_x -= 32;\r
512 if (pico_pen_x < 0) pico_pen_x = 0;\r
513 if (pico_pen_x > 248) pico_pen_x = 248;\r
514 }\r
515 if (pico_pen_y > 224) pico_pen_y = 224;\r
516 }\r
517 else\r
518 pdown_frames = 0;\r
519\r
520 //if (ret == 0)\r
521 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
522 }\r
523\r
524 PicoPad[0] &= ~0x0f; // release UDLR\r
525 if (gp2x_keys & GP2X_UP) pico_pen_y--;\r
526 if (gp2x_keys & GP2X_DOWN) pico_pen_y++;\r
527 if (gp2x_keys & GP2X_LEFT) pico_pen_x--;\r
528 if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;\r
529\r
530 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
531 if (pico_pen_y < 8) pico_pen_y = 8;\r
532 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
533 if (pico_pen_x < 0) pico_pen_x = 0;\r
534 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
535\r
536 PicoPicohw.pen_pos[0] = pico_pen_x;\r
537 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
538 PicoPicohw.pen_pos[0] += 0x3c;\r
539 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
540}\r
541\r
542static void update_volume(int has_changed, int is_up)\r
543{\r
544 static int prev_frame = 0, wait_frames = 0;\r
545 int vol = currentConfig.volume;\r
546\r
547 if (has_changed)\r
548 {\r
549 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
550 wait_frames++;\r
551 else {\r
552 if (is_up) {\r
553 if (vol < 99) vol++;\r
554 } else {\r
555 if (vol > 0) vol--;\r
556 }\r
557 wait_frames = 0;\r
b3972d82 558 sndout_oss_setvol(vol, vol);\r
492d353a 559 currentConfig.volume = vol;\r
560 }\r
561 sprintf(noticeMsg, "VOL: %02i", vol);\r
562 gettimeofday(&noticeMsgTime, 0);\r
563 prev_frame = Pico.m.frame_count;\r
564 }\r
565\r
566 // set the right mixer func\r
567 if (!(PicoOpt&8)) return; // just use defaults for mono\r
568 if (vol >= 5)\r
569 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
570 else {\r
571 mix_32_to_16l_level = 5 - vol;\r
572 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
573 }\r
574}\r
575\r
576static void RunEvents(unsigned int which)\r
577{\r
578 if (which & 0x1800) // save or load (but not both)\r
579 {\r
580 int do_it = 1;\r
581 if ( emu_checkSaveFile(state_slot) &&\r
582 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
583 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
584 unsigned long keys;\r
585 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
586 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
587 usleep(50*1024);\r
588 if (keys & GP2X_X) do_it = 0;\r
589 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release\r
590 usleep(50*1024);\r
591 clearArea(0);\r
592 }\r
593 if (do_it) {\r
594 osd_text(4, SCREEN_HEIGHT-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
595 PicoStateProgressCB = emu_state_cb;\r
596 gp2x_memcpy_all_buffers(gp2x_screen, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);\r
597 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
598 PicoStateProgressCB = NULL;\r
599 }\r
600\r
601 reset_timing = 1;\r
602 }\r
603 if (which & 0x0400) // switch renderer\r
604 {\r
605 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
606 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
607 else currentConfig.EmuOpt &= ~0x80;\r
608\r
609 vidResetMode();\r
610\r
611 if (PicoOpt&0x10) {\r
612 strcpy(noticeMsg, " 8bit fast renderer");\r
613 } else if (currentConfig.EmuOpt&0x80) {\r
614 strcpy(noticeMsg, "16bit accurate renderer");\r
615 } else {\r
616 strcpy(noticeMsg, " 8bit accurate renderer");\r
617 }\r
618\r
619 gettimeofday(&noticeMsgTime, 0);\r
620 }\r
621 if (which & 0x0300)\r
622 {\r
623 if(which&0x0200) {\r
624 state_slot -= 1;\r
625 if(state_slot < 0) state_slot = 9;\r
626 } else {\r
627 state_slot += 1;\r
628 if(state_slot > 9) state_slot = 0;\r
629 }\r
630 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
631 gettimeofday(&noticeMsgTime, 0);\r
632 }\r
633 if (which & 0x0080) {\r
634 engineState = PGS_Menu;\r
635 }\r
636}\r
637\r
638static void updateKeys(void)\r
639{\r
640 unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;\r
641 static unsigned int prevEvents = 0;\r
642 int joy, i;\r
643\r
644 keys = gp2x_joystick_read(0);\r
645 if (keys & GP2X_SELECT) {\r
646 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
647 // wait until select is released, so menu would not resume game\r
648 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
649 }\r
650\r
651 keys &= CONFIGURABLE_KEYS;\r
652 keys2 = keys;\r
653\r
654 for (i = 0; i < 32; i++)\r
655 {\r
656 if (keys2 & (1 << i))\r
657 {\r
658 int pl, acts = currentConfig.KeyBinds[i];\r
659 if (!acts) continue;\r
660 pl = (acts >> 16) & 1;\r
661 if (kb_combo_keys & (1 << i))\r
662 {\r
663 int u = i+1, acts_c = acts & kb_combo_acts;\r
664 // let's try to find the other one\r
665 if (acts_c) {\r
666 for (; u < 32; u++)\r
667 if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {\r
668 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];\r
669 keys2 &= ~((1 << i) | (1 << u));\r
670 break;\r
671 }\r
672 }\r
673 // add non-combo actions if combo ones were not found\r
674 if (!acts_c || u == 32)\r
675 allActions[pl] |= acts & ~kb_combo_acts;\r
676 } else {\r
677 allActions[pl] |= acts;\r
678 }\r
679 }\r
680 }\r
681\r
682 // add joy inputs\r
683 if (num_of_joys > 0)\r
684 {\r
b3972d82 685 usbjoy_update();\r
492d353a 686 for (joy = 0; joy < num_of_joys; joy++) {\r
b3972d82 687 int btns = usbjoy_check2(joy);\r
492d353a 688 for (i = 0; i < 32; i++) {\r
689 if (btns & (1 << i)) {\r
690 int acts = currentConfig.JoyBinds[joy][i];\r
691 int pl = (acts >> 16) & 1;\r
692 allActions[pl] |= acts;\r
693 }\r
694 }\r
695 }\r
696 }\r
697\r
698 PicoPad[0] = allActions[0] & 0xfff;\r
699 PicoPad[1] = allActions[1] & 0xfff;\r
700\r
701 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
702 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
703\r
704 events = (allActions[0] | allActions[1]) >> 16;\r
705\r
706 // volume is treated in special way and triggered every frame\r
707 if (events & 0x6000)\r
708 update_volume(1, events & 0x2000);\r
709\r
710 if ((events ^ prevEvents) & 0x40) {\r
711 emu_changeFastForward(events & 0x40);\r
712 update_volume(0, 0);\r
713 reset_timing = 1;\r
714 }\r
715\r
716 events &= ~prevEvents;\r
717\r
718 if (PicoAHW == PAHW_PICO)\r
719 RunEventsPico(events, keys);\r
720 if (events) RunEvents(events);\r
721 if (movie_data) emu_updateMovie();\r
722\r
723 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
724}\r
725\r
726\r
727static void updateSound(int len)\r
728{\r
729 if (PicoOpt&8) len<<=1;\r
730\r
731 /* avoid writing audio when lagging behind to prevent audio lag */\r
732 if (PicoSkipFrame != 2)\r
b3972d82 733 sndout_oss_write(PsndOut, len<<1);\r
492d353a 734}\r
735\r
736\r
737static void SkipFrame(int do_audio)\r
738{\r
739 PicoSkipFrame=do_audio ? 1 : 2;\r
740 PicoFrame();\r
741 PicoSkipFrame=0;\r
742}\r
743\r
744\r
745void emu_forcedFrame(int opts)\r
746{\r
747 int po_old = PicoOpt;\r
748 int eo_old = currentConfig.EmuOpt;\r
749\r
750 PicoOpt &= ~0x10;\r
751 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
752 currentConfig.EmuOpt |= 0x80;\r
753\r
754 //vidResetMode();\r
de9b1274 755#ifdef USE_320_SCREEN\r
756 PicoDrawSetColorFormat(1);\r
757 PicoScanBegin = EmuScanBegin16;\r
758#else\r
492d353a 759 PicoDrawSetColorFormat(-1);\r
760 PicoScanEnd = EmuScanEnd16;\r
de9b1274 761#endif\r
492d353a 762 Pico.m.dirtyPal = 1;\r
763 PicoFrameDrawOnly();\r
764\r
765/*\r
766 if (!(Pico.video.reg[12]&1)) {\r
767 vidCpyM2 = vidCpyM2_32col;\r
768 clearArea(1);\r
769 } else vidCpyM2 = vidCpyM2_40col;\r
770\r
771 vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);\r
772 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
773 gp2x_video_setpalette(localPal, 0x40);\r
774*/\r
775 PicoOpt = po_old;\r
776 currentConfig.EmuOpt = eo_old;\r
777}\r
778\r
f11bad75 779void emu_platformDebugCat(char *str)\r
780{\r
781 // nothing\r
782}\r
783\r
492d353a 784static void simpleWait(int thissec, int lim_time)\r
785{\r
786 struct timeval tval;\r
787\r
788 spend_cycles(1024);\r
789 gettimeofday(&tval, 0);\r
790 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
791\r
792 while (tval.tv_usec < lim_time)\r
793 {\r
794 spend_cycles(1024);\r
795 gettimeofday(&tval, 0);\r
796 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
797 }\r
798}\r
799\r
800\r
801void emu_Loop(void)\r
802{\r
803 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
804 char fpsbuff[24]; // fps count c string\r
805 struct timeval tval; // timing\r
806 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
807 int frames_done, frames_shown, thissec; // actual frames\r
808 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
809 char *notice = 0;\r
810\r
811 printf("entered emu_Loop()\n");\r
812\r
813 fpsbuff[0] = 0;\r
814\r
815 // make sure we are in correct mode\r
816 vidResetMode();\r
817 scaling_update();\r
818 Pico.m.dirtyPal = 1;\r
819 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
820 emu_findKeyBindCombos();\r
821\r
822 // pal/ntsc might have changed, reset related stuff\r
823 target_fps = Pico.m.pal ? 50 : 60;\r
824 target_frametime = 1000000/target_fps;\r
825 reset_timing = 1;\r
826\r
827 // prepare sound stuff\r
828 if (currentConfig.EmuOpt & 4)\r
829 {\r
830 int snd_excess_add;\r
831 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)\r
832 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
833\r
834 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
835 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
836 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
b3972d82 837 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
838 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
492d353a 839 PicoWriteSound = updateSound;\r
840 update_volume(0, 0);\r
841 memset(sndBuffer, 0, sizeof(sndBuffer));\r
842 PsndOut = sndBuffer;\r
843 PsndRate_old = PsndRate;\r
844 PicoOpt_old = PicoOpt;\r
845 pal_old = Pico.m.pal;\r
846 } else {\r
847 PsndOut = NULL;\r
848 }\r
849\r
850 // prepare CD buffer\r
851 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
852\r
853 // calc vsync offset to sync timing code with vsync\r
854 if (currentConfig.EmuOpt&0x2000) {\r
855 gettimeofday(&tval, 0);\r
856 gp2x_video_wait_vsync();\r
857 gettimeofday(&tval, 0);\r
858 vsync_offset = tval.tv_usec;\r
859 while (vsync_offset >= target_frametime)\r
860 vsync_offset -= target_frametime;\r
861 if (!vsync_offset) vsync_offset++;\r
862 printf("vsync_offset: %i\n", vsync_offset);\r
863 } else\r
864 vsync_offset = 0;\r
865\r
866 frames_done = frames_shown = thissec =\r
867 pframes_done = pframes_shown = pthissec = 0;\r
868\r
869 // loop\r
870 while (engineState == PGS_Running)\r
871 {\r
872 int modes;\r
873\r
874 gettimeofday(&tval, 0);\r
875 if (reset_timing) {\r
876 reset_timing = 0;\r
877 pthissec = tval.tv_sec;\r
878 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
879 }\r
880\r
881 // show notice message?\r
882 if (noticeMsgTime.tv_sec)\r
883 {\r
884 static int noticeMsgSum;\r
885 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
886 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
887 clearArea(0);\r
888 notice = 0;\r
889 } else {\r
890 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
891 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
892 notice = noticeMsg;\r
893 }\r
894 }\r
895\r
896 // check for mode changes\r
897 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
898 if (modes != oldmodes)\r
899 {\r
900 int scalex = SCREEN_WIDTH;\r
901 osd_fps_x = OSD_FPS_X;\r
902 if (modes & 4) {\r
903 vidCpyM2 = vidCpyM2_40col;\r
904 } else {\r
905 if (PicoOpt & 0x100) {\r
906 vidCpyM2 = vidCpyM2_32col_nobord;\r
907 scalex = 256;\r
908 osd_fps_x = OSD_FPS_X - 64;\r
909 } else {\r
910 vidCpyM2 = vidCpyM2_32col;\r
911 }\r
912 }\r
913 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
914 gp2x_video_RGB_setscaling(8, scalex, 224);\r
915 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
916 oldmodes = modes;\r
917 clearArea(1);\r
918 }\r
919\r
920 // second changed?\r
921 if (thissec != tval.tv_sec)\r
922 {\r
923#ifdef BENCHMARK\r
924 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
de9b1274 925 if (++bench == 4) {\r
492d353a 926 bench = 0;\r
de9b1274 927 bench_fps_s = bench_fps / 4;\r
928 bf[bfp++ & 3] = bench_fps / 4;\r
492d353a 929 bench_fps = 0;\r
930 }\r
931 bench_fps += frames_shown;\r
de9b1274 932 sprintf(fpsbuff, "%3i/%3i/%3i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
5d239ae7 933 printf("%s\n", fpsbuff);\r
492d353a 934#else\r
935 if (currentConfig.EmuOpt & 2) {\r
de9b1274 936 sprintf(fpsbuff, "%3i/%3i", frames_shown, frames_done);\r
492d353a 937 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
938 }\r
939#endif\r
940 frames_shown = frames_done = 0;\r
941 thissec = tval.tv_sec;\r
942 }\r
943#ifdef PFRAMES\r
944 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
945#endif\r
946\r
947 if (pthissec != tval.tv_sec)\r
948 {\r
949 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
950 pframes_done = pframes_shown = 0;\r
951 } else {\r
952 // it is quite common for this implementation to leave 1 fame unfinished\r
953 // when second changes, but we don't want buffer to starve.\r
954 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
955 updateKeys();\r
956 SkipFrame(1); pframes_done++;\r
957 }\r
958\r
959 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
960 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
961 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
962 }\r
963 pthissec = tval.tv_sec;\r
964 }\r
965\r
966 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
967 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
968 {\r
969 for(i = 0; i < currentConfig.Frameskip; i++) {\r
970 updateKeys();\r
971 SkipFrame(1); pframes_done++; frames_done++;\r
972 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
973 gettimeofday(&tval, 0);\r
974 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
975 if (tval.tv_usec < lim_time) { // we are too fast\r
976 simpleWait(pthissec, lim_time);\r
977 }\r
978 }\r
979 lim_time += target_frametime;\r
980 }\r
981 }\r
982 else if (tval.tv_usec > lim_time) // auto frameskip\r
983 {\r
984 // no time left for this frame - skip\r
985 if (tval.tv_usec - lim_time >= 300000) {\r
986 /* something caused a slowdown for us (disk access? cache flush?)\r
987 * try to recover by resetting timing... */\r
988 reset_timing = 1;\r
989 continue;\r
990 }\r
991 updateKeys();\r
992 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
993 continue;\r
994 }\r
995\r
996 updateKeys();\r
997 PicoFrame();\r
998\r
999 // check time\r
1000 gettimeofday(&tval, 0);\r
1001 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1002\r
1003 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
1004 reset_timing = 1;\r
095a240b 1005#if 1\r
1006 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
492d353a 1007 {\r
1008 // sleep or vsync if we are still too fast\r
1009 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
1010 if (!reset_timing && tval.tv_usec < lim_time)\r
1011 {\r
1012 // we are too fast\r
1013 if (vsync_offset) {\r
1014 if (lim_time - tval.tv_usec > target_frametime/2)\r
1015 simpleWait(pthissec, lim_time - target_frametime/4);\r
1016 gp2x_video_wait_vsync();\r
1017 } else {\r
1018 simpleWait(pthissec, lim_time);\r
1019 }\r
1020 }\r
1021 }\r
095a240b 1022#endif\r
492d353a 1023 blit(fpsbuff, notice);\r
1024\r
1025 pframes_done++; pframes_shown++;\r
1026 frames_done++; frames_shown++;\r
1027 }\r
1028\r
1029 emu_changeFastForward(0);\r
1030\r
1031 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
1032\r
1033 // save SRAM\r
1034 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
1035 emu_state_cb("Writing SRAM/BRAM..");\r
1036 emu_SaveLoadGame(0, 1);\r
1037 SRam.changed = 0;\r
1038 }\r
1039\r
1040 // if in 8bit mode, generate 16bit image for menu background\r
1041 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
1042 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
1043}\r
1044\r
1045\r
1046void emu_ResetGame(void)\r
1047{\r
1048 PicoReset();\r
1049 reset_timing = 1;\r
1050}\r
1051\r
PicoDrive's frontend in a lib