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UIQ3 update, some makefile unification, rm old configs, stuff
[picodrive.git] / platform / pandora / emu.c
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3bb7bd19 1// (c) Copyright 2006-2008 notaz, All rights reserved.\r
e55f0cbb 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
3bb7bd19 25#include "asm_utils.h"\r
e55f0cbb 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
3bb7bd19 33#define BENCHMARK\r
34//#define USE_320_SCREEN 1\r
e55f0cbb 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
e55f0cbb 51unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
52int reset_timing = 0;\r
53\r
54#define PICO_PEN_ADJUST_X 4\r
55#define PICO_PEN_ADJUST_Y 2\r
56static int pico_pen_x = SCREEN_WIDTH/2, pico_pen_y = 240/2;\r
57\r
58static void emu_msg_cb(const char *msg);\r
59static void emu_msg_tray_open(void);\r
60\r
61\r
62void emu_noticeMsgUpdated(void)\r
63{\r
64 gettimeofday(&noticeMsgTime, 0);\r
65}\r
66\r
ca482e5d 67int emu_getMainDir(char *dst, int len)\r
e55f0cbb 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
ca482e5d 78\r
79 return j + 1;\r
e55f0cbb 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
104static void scaling_update(void)\r
105{\r
106 PicoOpt &= ~0x4100;\r
107 switch (currentConfig.scaling) {\r
108 default: break; // off\r
109 case 1: // hw hor\r
110 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
111 case 3: PicoOpt |= 0x4000; break; // sw hor\r
112 }\r
113}\r
114\r
115\r
116void emu_Deinit(void)\r
117{\r
118 // save SRAM\r
119 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
120 emu_SaveLoadGame(0, 1);\r
121 SRam.changed = 0;\r
122 }\r
123\r
124 if (!(currentConfig.EmuOpt & 0x20)) {\r
125 config_writelrom(PicoConfigFile);\r
126#ifndef NO_SYNC\r
127 sync();\r
128#endif\r
129 }\r
130\r
131 free(PicoDraw2FB);\r
132\r
133 PicoExit();\r
134}\r
135\r
136void emu_prepareDefaultConfig(void)\r
137{\r
138 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
84100c0f 139 defaultConfig.EmuOpt = 0x8f | 0x00600; // | <- confirm_save, cd_leds\r
3bb7bd19 140 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC;\r
141 defaultConfig.s_PicoOpt |= POPT_ACC_SPRITES|POPT_EN_MCD_GFX;\r
142 defaultConfig.s_PicoOpt &= ~POPT_EN_SVP_DRC; // crashes :(\r
84100c0f 143 defaultConfig.EmuOpt &= ~8; // no save gzip\r
e55f0cbb 144 defaultConfig.s_PsndRate = 44100;\r
84100c0f 145 defaultConfig.s_PicoRegion = 0;\r
e55f0cbb 146 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
147 defaultConfig.s_PicoCDBuffers = 0;\r
3bb7bd19 148 defaultConfig.Frameskip = 0;\r
e55f0cbb 149 defaultConfig.CPUclock = 200;\r
150 defaultConfig.volume = 50;\r
151 defaultConfig.scaling = 0;\r
152 defaultConfig.turbo_rate = 15;\r
153}\r
154\r
e55f0cbb 155static void textOut16(int x, int y, const char *text)\r
156{\r
157 int i,l,len=strlen(text);\r
158 unsigned int *screen = (unsigned int *)((unsigned short *)SCREEN_BUFFER + (x&~1) + y*SCREEN_WIDTH);\r
159\r
160 for (i = 0; i < len; i++)\r
161 {\r
3bb7bd19 162 for (l=0;l<16;)\r
e55f0cbb 163 {\r
164 unsigned char fd = fontdata8x8[((text[i])*8)+l/2];\r
3bb7bd19 165 unsigned int *d = &screen[l*SCREEN_WIDTH/2];\r
166 if (fd&0x80) d[0]=0xffffffff;\r
167 if (fd&0x40) d[1]=0xffffffff;\r
168 if (fd&0x20) d[2]=0xffffffff;\r
169 if (fd&0x10) d[3]=0xffffffff;\r
170 if (fd&0x08) d[4]=0xffffffff;\r
171 if (fd&0x04) d[5]=0xffffffff;\r
172 if (fd&0x02) d[6]=0xffffffff;\r
173 if (fd&0x01) d[7]=0xffffffff;\r
174 l++; 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++;\r
e55f0cbb 184 }\r
185 screen += 8;\r
186 }\r
187}\r
188\r
189\r
190void osd_text(int x, int y, const char *text)\r
191{\r
192 int len = strlen(text)*8;\r
193\r
194 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
195 int *p, i, h;\r
196 x &= ~3; // align x\r
197 len = (len+3) >> 2;\r
198 for (h = 0; h < 8; h++) {\r
199 p = (int *) ((unsigned char *) gp2x_screen+x+SCREEN_WIDTH*(y+h));\r
200 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
201 }\r
202 emu_textOut8(x, y, text);\r
203 } else {\r
204 int *p, i, h;\r
205 x &= ~1; // align x\r
206 len++;\r
207 for (h = 0; h < 16; h++) {\r
208 p = (int *) ((unsigned short *) gp2x_screen+x+SCREEN_WIDTH*(y+h));\r
3bb7bd19 209 for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r
e55f0cbb 210 }\r
211 textOut16(x, y, text);\r
212 }\r
213}\r
214\r
215static void draw_cd_leds(void)\r
216{\r
217// static\r
218 int old_reg;\r
219// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
220 old_reg = Pico_mcd->s68k_regs[0];\r
221\r
222 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
223 // 8-bit modes\r
224 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
225 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
226 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+ 4) =\r
227 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+ 4) =\r
228 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+ 4) = col_g;\r
229 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+12) =\r
230 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+12) =\r
231 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+12) = col_r;\r
232 } else {\r
233 // 16-bit modes\r
234 unsigned int *p = (unsigned int *)((short *)gp2x_screen + SCREEN_WIDTH*2+4);\r
235 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
236 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
237 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;\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;\r
240 }\r
241}\r
242\r
243static void draw_pico_ptr(void)\r
244{\r
245 unsigned short *p = (unsigned short *)gp2x_screen;\r
246\r
247 // only if pen enabled and for 16bit modes\r
248 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
249\r
250 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
251 p += 32;\r
252\r
253 p += SCREEN_WIDTH * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
254 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
255 p[0] ^= 0xffff;\r
256 p[319] ^= 0xffff;\r
257 p[320] ^= 0xffff;\r
258 p[321] ^= 0xffff;\r
259 p[640] ^= 0xffff;\r
260}\r
261\r
3bb7bd19 262#ifdef USE_320_SCREEN\r
263\r
264static int EmuScanBegin16(unsigned int num)\r
265{\r
266 if (!(Pico.video.reg[1]&8)) num += 8;\r
267 DrawLineDest = (unsigned short *)gp2x_screen + num*800 + 800/2 - 320/2;\r
268 //int w = (Pico.video.reg[12]&1) ? 320 : 256;\r
269 //DrawLineDest = (unsigned short *)gp2x_screen + num*w;\r
270\r
271 return 0;\r
272}\r
273\r
274#else // USE_320_SCREEN\r
275\r
e55f0cbb 276static int EmuScanEnd16(unsigned int num)\r
277{\r
278 unsigned char *ps=HighCol+8;\r
279 unsigned short *pd;\r
280 unsigned short *pal=HighPal;\r
281 int sh = Pico.video.reg[0xC]&8;\r
282 int len, mask = 0xff;\r
283\r
284 if (!(Pico.video.reg[1]&8)) num += 8;\r
285 pd=(unsigned short *)gp2x_screen + num*800*2 + 800/2 - 320*2/2;\r
286\r
287 if (Pico.m.dirtyPal)\r
288 PicoDoHighPal555(sh);\r
289\r
290 if (Pico.video.reg[12]&1) {\r
291 len = 320;\r
292 } else {\r
3bb7bd19 293 pd += 32*2;\r
e55f0cbb 294 len = 256;\r
295 }\r
296\r
297 if (!sh && (rendstatus & PDRAW_ACC_SPRITES))\r
298 mask=0x3f; // accurate sprites, upper bits are priority stuff\r
299\r
3bb7bd19 300#if 1\r
301 clut_line(pd, ps, pal, (mask<<16) | len);\r
302#else\r
e55f0cbb 303 for (; len > 0; len--)\r
304 {\r
305 unsigned int p = pal[*ps++ & mask];\r
306 p |= p << 16;\r
307 *(unsigned int *)pd = p;\r
308 *(unsigned int *)(&pd[800]) = p;\r
309 pd += 2;\r
310 }\r
3bb7bd19 311#endif\r
e55f0cbb 312\r
313 return 0;\r
314}\r
315\r
3bb7bd19 316#endif // USE_320_SCREEN\r
317\r
e55f0cbb 318static int EmuScanBegin8(unsigned int num)\r
319{\r
320 if (!(Pico.video.reg[1]&8)) num += 8;\r
321 DrawLineDest = (unsigned char *) gp2x_screen + SCREEN_WIDTH * num;\r
322\r
323 return 0;\r
324}\r
325\r
326int localPal[0x100];\r
327static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
328\r
329static void blit(const char *fps, const char *notice)\r
330{\r
331 int emu_opt = currentConfig.EmuOpt;\r
332\r
333 if (PicoOpt&0x10)\r
334 {\r
335 // 8bit fast renderer\r
336 if (Pico.m.dirtyPal) {\r
337 Pico.m.dirtyPal = 0;\r
338 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
339 // feed new palette to our device\r
340 gp2x_video_setpalette(localPal, 0x40);\r
341 }\r
342 // a hack for VR\r
343 if (PicoRead16Hook == PicoSVPRead16)\r
344 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
345 // do actual copy\r
346 vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);\r
347 }\r
348 else if (!(emu_opt&0x80))\r
349 {\r
350 // 8bit accurate renderer\r
351 if (Pico.m.dirtyPal)\r
352 {\r
353 int pallen = 0x40;\r
354 Pico.m.dirtyPal = 0;\r
355 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
356 {\r
357 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
358 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
359 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
360 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
361 pallen = 0x100;\r
362 }\r
363 else if (rendstatus & PDRAW_ACC_SPRITES) {\r
364 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
365 memcpy32(localPal+0x40, localPal, 0x40);\r
366 memcpy32(localPal+0x80, localPal, 0x40);\r
367 memcpy32(localPal+0xc0, localPal, 0x40);\r
368 pallen = 0x100;\r
369 }\r
370 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
371 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
372 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
373 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
374 pallen = 0xc0;\r
375 }\r
376 else {\r
377 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
378 }\r
379 if (pallen > 0xc0) {\r
380 localPal[0xc0] = 0x0000c000;\r
381 localPal[0xd0] = 0x00c00000;\r
382 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
383 localPal[0xf0] = 0x00ffffff;\r
384 }\r
385 gp2x_video_setpalette(localPal, pallen);\r
386 }\r
387 }\r
388\r
389 if (notice || (emu_opt & 2)) {\r
390 int h = SCREEN_HEIGHT-16;\r
391 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;\r
392 if (notice) osd_text(4, h, notice);\r
393 if (emu_opt & 2)\r
3bb7bd19 394 osd_text(osd_fps_x, h, fps);\r
e55f0cbb 395 }\r
396 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
397 draw_cd_leds();\r
398 if (PicoAHW & PAHW_PICO)\r
399 draw_pico_ptr();\r
400{\r
401//static int u=0;\r
402//memset((char *)gp2x_screen+800*471*2, (u++)>>1, 800*9*2);\r
403}\r
404\r
405 //gp2x_video_wait_vsync();\r
406 gp2x_video_flip();\r
407}\r
408\r
409\r
410// clears whole screen or just the notice area (in all buffers)\r
411static void clearArea(int full)\r
412{\r
413 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
414 // 8-bit renderers\r
415 if (full) gp2x_memset_all_buffers(0, 0xe0, SCREEN_WIDTH*240);\r
416 else gp2x_memset_all_buffers(SCREEN_WIDTH*232, 0xe0, SCREEN_WIDTH*8);\r
417 } else {\r
418 // 16bit accurate renderer\r
419 if (full) gp2x_memset_all_buffers(0, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);\r
420 else gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);\r
421 }\r
422}\r
423\r
424\r
425static void vidResetMode(void)\r
426{\r
427 if (PicoOpt&0x10) {\r
428 gp2x_video_changemode(8);\r
429 } else if (currentConfig.EmuOpt&0x80) {\r
430 gp2x_video_changemode(16);\r
3bb7bd19 431#ifdef USE_320_SCREEN\r
432 PicoDrawSetColorFormat(1);\r
433 PicoScanBegin = EmuScanBegin16;\r
434#else\r
e55f0cbb 435 PicoDrawSetColorFormat(-1);\r
436 PicoScanEnd = EmuScanEnd16;\r
3bb7bd19 437#endif\r
e55f0cbb 438 } else {\r
439 gp2x_video_changemode(8);\r
440 PicoDrawSetColorFormat(2);\r
441 PicoScanBegin = EmuScanBegin8;\r
442 }\r
443 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
444 // setup pal for 8-bit modes\r
445 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
446 localPal[0xd0] = 0x00c00000;\r
447 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
448 localPal[0xf0] = 0x00ffffff;\r
449 gp2x_video_setpalette(localPal, 0x100);\r
450 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
451 gp2x_video_flip();\r
452 }\r
453 Pico.m.dirtyPal = 1;\r
454 // reset scaling\r
455 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
456 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
457 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
458}\r
459\r
460\r
461static void emu_msg_cb(const char *msg)\r
462{\r
463 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
464 // 8-bit renderers\r
465 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16), 0xe0, SCREEN_WIDTH*16);\r
466 osd_text(4, SCREEN_HEIGHT-16, msg);\r
467 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16),\r
468 SCREEN_WIDTH*(SCREEN_HEIGHT-16), SCREEN_WIDTH*16);\r
469 } else {\r
470 // 16bit accurate renderer\r
471 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);\r
472 osd_text(4, SCREEN_HEIGHT-16, msg);\r
473 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2,\r
474 SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, SCREEN_WIDTH*16*2);\r
475 }\r
476 gettimeofday(&noticeMsgTime, 0);\r
477 noticeMsgTime.tv_sec -= 2;\r
478\r
479 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
480 reset_timing = 1;\r
481}\r
482\r
483static void emu_state_cb(const char *str)\r
484{\r
485 clearArea(0);\r
486 blit("", str);\r
487}\r
488\r
489static void emu_msg_tray_open(void)\r
490{\r
491 strcpy(noticeMsg, "CD tray opened");\r
492 gettimeofday(&noticeMsgTime, 0);\r
493}\r
494\r
495static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)\r
496{\r
497 int ret, px, py, lim_x;\r
498 static int pdown_frames = 0;\r
499\r
500 emu_RunEventsPico(events);\r
501\r
502 if (pico_inp_mode == 0) return;\r
503\r
504 // for F200\r
505 ret = gp2x_touchpad_read(&px, &py);\r
506 if (ret >= 0)\r
507 {\r
508 if (ret > 35000)\r
509 {\r
510 if (pdown_frames++ > 5)\r
511 PicoPad[0] |= 0x20;\r
512\r
513 pico_pen_x = px;\r
514 pico_pen_y = py;\r
515 if (!(Pico.video.reg[12]&1)) {\r
516 pico_pen_x -= 32;\r
517 if (pico_pen_x < 0) pico_pen_x = 0;\r
518 if (pico_pen_x > 248) pico_pen_x = 248;\r
519 }\r
520 if (pico_pen_y > 224) pico_pen_y = 224;\r
521 }\r
522 else\r
523 pdown_frames = 0;\r
524\r
525 //if (ret == 0)\r
526 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
527 }\r
528\r
529 PicoPad[0] &= ~0x0f; // release UDLR\r
530 if (gp2x_keys & GP2X_UP) pico_pen_y--;\r
531 if (gp2x_keys & GP2X_DOWN) pico_pen_y++;\r
532 if (gp2x_keys & GP2X_LEFT) pico_pen_x--;\r
533 if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;\r
534\r
535 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
536 if (pico_pen_y < 8) pico_pen_y = 8;\r
537 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
538 if (pico_pen_x < 0) pico_pen_x = 0;\r
539 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
540\r
541 PicoPicohw.pen_pos[0] = pico_pen_x;\r
542 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
543 PicoPicohw.pen_pos[0] += 0x3c;\r
544 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
545}\r
546\r
547static void update_volume(int has_changed, int is_up)\r
548{\r
549 static int prev_frame = 0, wait_frames = 0;\r
550 int vol = currentConfig.volume;\r
551\r
552 if (has_changed)\r
553 {\r
554 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
555 wait_frames++;\r
556 else {\r
557 if (is_up) {\r
558 if (vol < 99) vol++;\r
559 } else {\r
560 if (vol > 0) vol--;\r
561 }\r
562 wait_frames = 0;\r
563 gp2x_sound_volume(vol, vol);\r
564 currentConfig.volume = vol;\r
565 }\r
566 sprintf(noticeMsg, "VOL: %02i", vol);\r
567 gettimeofday(&noticeMsgTime, 0);\r
568 prev_frame = Pico.m.frame_count;\r
569 }\r
570\r
571 // set the right mixer func\r
572 if (!(PicoOpt&8)) return; // just use defaults for mono\r
573 if (vol >= 5)\r
574 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
575 else {\r
576 mix_32_to_16l_level = 5 - vol;\r
577 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
578 }\r
579}\r
580\r
581static void RunEvents(unsigned int which)\r
582{\r
583 if (which & 0x1800) // save or load (but not both)\r
584 {\r
585 int do_it = 1;\r
586 if ( emu_checkSaveFile(state_slot) &&\r
587 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
588 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
589 unsigned long keys;\r
590 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
591 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
592 usleep(50*1024);\r
593 if (keys & GP2X_X) do_it = 0;\r
594 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release\r
595 usleep(50*1024);\r
596 clearArea(0);\r
597 }\r
598 if (do_it) {\r
599 osd_text(4, SCREEN_HEIGHT-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
600 PicoStateProgressCB = emu_state_cb;\r
601 gp2x_memcpy_all_buffers(gp2x_screen, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);\r
602 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
603 PicoStateProgressCB = NULL;\r
604 }\r
605\r
606 reset_timing = 1;\r
607 }\r
608 if (which & 0x0400) // switch renderer\r
609 {\r
610 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
611 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
612 else currentConfig.EmuOpt &= ~0x80;\r
613\r
614 vidResetMode();\r
615\r
616 if (PicoOpt&0x10) {\r
617 strcpy(noticeMsg, " 8bit fast renderer");\r
618 } else if (currentConfig.EmuOpt&0x80) {\r
619 strcpy(noticeMsg, "16bit accurate renderer");\r
620 } else {\r
621 strcpy(noticeMsg, " 8bit accurate renderer");\r
622 }\r
623\r
624 gettimeofday(&noticeMsgTime, 0);\r
625 }\r
626 if (which & 0x0300)\r
627 {\r
628 if(which&0x0200) {\r
629 state_slot -= 1;\r
630 if(state_slot < 0) state_slot = 9;\r
631 } else {\r
632 state_slot += 1;\r
633 if(state_slot > 9) state_slot = 0;\r
634 }\r
635 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
636 gettimeofday(&noticeMsgTime, 0);\r
637 }\r
638 if (which & 0x0080) {\r
639 engineState = PGS_Menu;\r
640 }\r
641}\r
642\r
643static void updateKeys(void)\r
644{\r
645 unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;\r
646 static unsigned int prevEvents = 0;\r
647 int joy, i;\r
648\r
649 keys = gp2x_joystick_read(0);\r
650 if (keys & GP2X_SELECT) {\r
651 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
652 // wait until select is released, so menu would not resume game\r
653 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
654 }\r
655\r
656 keys &= CONFIGURABLE_KEYS;\r
657 keys2 = keys;\r
658\r
659 for (i = 0; i < 32; i++)\r
660 {\r
661 if (keys2 & (1 << i))\r
662 {\r
663 int pl, acts = currentConfig.KeyBinds[i];\r
664 if (!acts) continue;\r
665 pl = (acts >> 16) & 1;\r
666 if (kb_combo_keys & (1 << i))\r
667 {\r
668 int u = i+1, acts_c = acts & kb_combo_acts;\r
669 // let's try to find the other one\r
670 if (acts_c) {\r
671 for (; u < 32; u++)\r
672 if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {\r
673 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];\r
674 keys2 &= ~((1 << i) | (1 << u));\r
675 break;\r
676 }\r
677 }\r
678 // add non-combo actions if combo ones were not found\r
679 if (!acts_c || u == 32)\r
680 allActions[pl] |= acts & ~kb_combo_acts;\r
681 } else {\r
682 allActions[pl] |= acts;\r
683 }\r
684 }\r
685 }\r
686\r
687 // add joy inputs\r
688 if (num_of_joys > 0)\r
689 {\r
690 gp2x_usbjoy_update();\r
691 for (joy = 0; joy < num_of_joys; joy++) {\r
692 int btns = gp2x_usbjoy_check2(joy);\r
693 for (i = 0; i < 32; i++) {\r
694 if (btns & (1 << i)) {\r
695 int acts = currentConfig.JoyBinds[joy][i];\r
696 int pl = (acts >> 16) & 1;\r
697 allActions[pl] |= acts;\r
698 }\r
699 }\r
700 }\r
701 }\r
702\r
703 PicoPad[0] = allActions[0] & 0xfff;\r
704 PicoPad[1] = allActions[1] & 0xfff;\r
705\r
706 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
707 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
708\r
709 events = (allActions[0] | allActions[1]) >> 16;\r
710\r
711 // volume is treated in special way and triggered every frame\r
712 if (events & 0x6000)\r
713 update_volume(1, events & 0x2000);\r
714\r
715 if ((events ^ prevEvents) & 0x40) {\r
716 emu_changeFastForward(events & 0x40);\r
717 update_volume(0, 0);\r
718 reset_timing = 1;\r
719 }\r
720\r
721 events &= ~prevEvents;\r
722\r
723 if (PicoAHW == PAHW_PICO)\r
724 RunEventsPico(events, keys);\r
725 if (events) RunEvents(events);\r
726 if (movie_data) emu_updateMovie();\r
727\r
728 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
729}\r
730\r
731\r
732static void updateSound(int len)\r
733{\r
734 if (PicoOpt&8) len<<=1;\r
735\r
736 /* avoid writing audio when lagging behind to prevent audio lag */\r
737 if (PicoSkipFrame != 2)\r
738 gp2x_sound_write(PsndOut, len<<1);\r
739}\r
740\r
741\r
742static void SkipFrame(int do_audio)\r
743{\r
744 PicoSkipFrame=do_audio ? 1 : 2;\r
745 PicoFrame();\r
746 PicoSkipFrame=0;\r
747}\r
748\r
749\r
750void emu_forcedFrame(int opts)\r
751{\r
752 int po_old = PicoOpt;\r
753 int eo_old = currentConfig.EmuOpt;\r
754\r
755 PicoOpt &= ~0x10;\r
756 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
757 currentConfig.EmuOpt |= 0x80;\r
758\r
759 //vidResetMode();\r
3bb7bd19 760#ifdef USE_320_SCREEN\r
761 PicoDrawSetColorFormat(1);\r
762 PicoScanBegin = EmuScanBegin16;\r
763#else\r
e55f0cbb 764 PicoDrawSetColorFormat(-1);\r
765 PicoScanEnd = EmuScanEnd16;\r
3bb7bd19 766#endif\r
e55f0cbb 767 Pico.m.dirtyPal = 1;\r
768 PicoFrameDrawOnly();\r
769\r
770/*\r
771 if (!(Pico.video.reg[12]&1)) {\r
772 vidCpyM2 = vidCpyM2_32col;\r
773 clearArea(1);\r
774 } else vidCpyM2 = vidCpyM2_40col;\r
775\r
776 vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);\r
777 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
778 gp2x_video_setpalette(localPal, 0x40);\r
779*/\r
780 PicoOpt = po_old;\r
781 currentConfig.EmuOpt = eo_old;\r
782}\r
783\r
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
837 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
838 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
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
3bb7bd19 925 if (++bench == 4) {\r
e55f0cbb 926 bench = 0;\r
3bb7bd19 927 bench_fps_s = bench_fps / 4;\r
928 bf[bfp++ & 3] = bench_fps / 4;\r
e55f0cbb 929 bench_fps = 0;\r
930 }\r
931 bench_fps += frames_shown;\r
3bb7bd19 932 sprintf(fpsbuff, "%3i/%3i/%3i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
84100c0f 933 printf("%s\n", fpsbuff);\r
e55f0cbb 934#else\r
935 if (currentConfig.EmuOpt & 2) {\r
3bb7bd19 936 sprintf(fpsbuff, "%3i/%3i", frames_shown, frames_done);\r
e55f0cbb 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
1005/* else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
1006 {\r
1007 // sleep or vsync if we are still too fast\r
1008 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
1009 if (!reset_timing && tval.tv_usec < lim_time)\r
1010 {\r
1011 // we are too fast\r
1012 if (vsync_offset) {\r
1013 if (lim_time - tval.tv_usec > target_frametime/2)\r
1014 simpleWait(pthissec, lim_time - target_frametime/4);\r
1015 gp2x_video_wait_vsync();\r
1016 } else {\r
1017 simpleWait(pthissec, lim_time);\r
1018 }\r
1019 }\r
1020 }\r
1021*/\r
1022 blit(fpsbuff, notice);\r
1023\r
1024 pframes_done++; pframes_shown++;\r
1025 frames_done++; frames_shown++;\r
1026 }\r
1027\r
1028 emu_changeFastForward(0);\r
1029\r
1030 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
1031\r
1032 // save SRAM\r
1033 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
1034 emu_state_cb("Writing SRAM/BRAM..");\r
1035 emu_SaveLoadGame(0, 1);\r
1036 SRam.changed = 0;\r
1037 }\r
1038\r
1039 // if in 8bit mode, generate 16bit image for menu background\r
1040 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
1041 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
1042}\r
1043\r
1044\r
1045void emu_ResetGame(void)\r
1046{\r
1047 PicoReset();\r
1048 reset_timing = 1;\r
1049}\r
1050\r
fast MegaDrive/MegaCD/32X emulator