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refactoring for Wiz port; random cleanups
[libpicofe.git] / pandora / emu.c
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de9b1274 1// (c) Copyright 2006-2008 notaz, All rights reserved.\r
492d353a 2// Free for non-commercial use.\r
3\r
4// For commercial use, separate licencing terms must be obtained.\r
5\r
6#include <stdio.h>\r
7#include <stdlib.h>\r
8#include <sys/time.h>\r
9#include <sys/stat.h>\r
10#include <sys/types.h>\r
11#include <linux/limits.h>\r
12#include <ctype.h>\r
13#include <unistd.h>\r
14\r
15#include <stdarg.h>\r
16\r
492d353a 17#include "../common/arm_utils.h"\r
18#include "../common/fonts.h"\r
19#include "../common/emu.h"\r
7fd581f4 20#include "../common/menu.h"\r
492d353a 21#include "../common/config.h"\r
fce20e73 22#include "../common/input.h"\r
b3972d82 23#include "../linux/sndout_oss.h"\r
de9b1274 24#include "asm_utils.h"\r
492d353a 25\r
f11bad75 26#include <pico/pico_int.h>\r
27#include <pico/patch.h>\r
28#include <pico/sound/mix.h>\r
492d353a 29#include <zlib/zlib.h>\r
30\r
31//#define PFRAMES\r
de9b1274 32#define BENCHMARK\r
33//#define USE_320_SCREEN 1\r
492d353a 34\r
35#ifdef BENCHMARK\r
36#define OSD_FPS_X (800-200)\r
37#else\r
38#define OSD_FPS_X (800-120)\r
39#endif\r
40\r
41\r
492d353a 42static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
43static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
44static int osd_fps_x;\r
492d353a 45unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
46int reset_timing = 0;\r
47\r
48#define PICO_PEN_ADJUST_X 4\r
49#define PICO_PEN_ADJUST_Y 2\r
e31266dd 50static int pico_pen_x = 0, pico_pen_y = 240/2;\r
492d353a 51\r
52static void emu_msg_cb(const char *msg);\r
53static void emu_msg_tray_open(void);\r
54\r
55\r
56void emu_noticeMsgUpdated(void)\r
57{\r
58 gettimeofday(&noticeMsgTime, 0);\r
59}\r
60\r
36f6fd5a 61int emu_getMainDir(char *dst, int len)\r
492d353a 62{\r
63 extern char **g_argv;\r
64 int j;\r
65\r
66 strncpy(dst, g_argv[0], len);\r
67 len -= 32; // reserve\r
68 if (len < 0) len = 0;\r
69 dst[len] = 0;\r
70 for (j = strlen(dst); j > 0; j--)\r
71 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
36f6fd5a 72\r
73 return j + 1;\r
492d353a 74}\r
75\r
76void emu_Init(void)\r
77{\r
78 // make temp buffer for alt renderer\r
79 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
80 if (!PicoDraw2FB)\r
81 {\r
82 printf("PicoDraw2FB == 0\n");\r
83 }\r
84\r
85 // make dirs for saves, cfgs, etc.\r
86 mkdir("mds", 0777);\r
87 mkdir("srm", 0777);\r
88 mkdir("brm", 0777);\r
89 mkdir("cfg", 0777);\r
90\r
91 PicoInit();\r
92 PicoMessage = emu_msg_cb;\r
93 PicoMCDopenTray = emu_msg_tray_open;\r
94 PicoMCDcloseTray = menu_loop_tray;\r
95}\r
96\r
97\r
492d353a 98void emu_Deinit(void)\r
99{\r
100 // save SRAM\r
101 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
102 emu_SaveLoadGame(0, 1);\r
103 SRam.changed = 0;\r
104 }\r
105\r
106 if (!(currentConfig.EmuOpt & 0x20)) {\r
107 config_writelrom(PicoConfigFile);\r
108#ifndef NO_SYNC\r
109 sync();\r
110#endif\r
111 }\r
112\r
113 free(PicoDraw2FB);\r
114\r
115 PicoExit();\r
116}\r
117\r
118void emu_prepareDefaultConfig(void)\r
119{\r
120 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
5d239ae7 121 defaultConfig.EmuOpt = 0x8f | 0x00600; // | <- confirm_save, cd_leds\r
de9b1274 122 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC;\r
123 defaultConfig.s_PicoOpt |= POPT_ACC_SPRITES|POPT_EN_MCD_GFX;\r
5d239ae7 124 defaultConfig.EmuOpt &= ~8; // no save gzip\r
492d353a 125 defaultConfig.s_PsndRate = 44100;\r
5d239ae7 126 defaultConfig.s_PicoRegion = 0;\r
492d353a 127 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
128 defaultConfig.s_PicoCDBuffers = 0;\r
de9b1274 129 defaultConfig.Frameskip = 0;\r
492d353a 130 defaultConfig.CPUclock = 200;\r
131 defaultConfig.volume = 50;\r
132 defaultConfig.scaling = 0;\r
133 defaultConfig.turbo_rate = 15;\r
134}\r
135\r
492d353a 136static void textOut16(int x, int y, const char *text)\r
137{\r
138 int i,l,len=strlen(text);\r
e31266dd 139 unsigned int *screen = (unsigned int *)((unsigned short *)g_screen_ptr + (x&~1) + y*g_screen_width);\r
492d353a 140\r
141 for (i = 0; i < len; i++)\r
142 {\r
de9b1274 143 for (l=0;l<16;)\r
492d353a 144 {\r
145 unsigned char fd = fontdata8x8[((text[i])*8)+l/2];\r
e31266dd 146 unsigned int *d = &screen[l*g_screen_width/2];\r
de9b1274 147 if (fd&0x80) d[0]=0xffffffff;\r
148 if (fd&0x40) d[1]=0xffffffff;\r
149 if (fd&0x20) d[2]=0xffffffff;\r
150 if (fd&0x10) d[3]=0xffffffff;\r
151 if (fd&0x08) d[4]=0xffffffff;\r
152 if (fd&0x04) d[5]=0xffffffff;\r
153 if (fd&0x02) d[6]=0xffffffff;\r
154 if (fd&0x01) d[7]=0xffffffff;\r
e31266dd 155 l++; d = &screen[l*g_screen_width/2];\r
de9b1274 156 if (fd&0x80) d[0]=0xffffffff;\r
157 if (fd&0x40) d[1]=0xffffffff;\r
158 if (fd&0x20) d[2]=0xffffffff;\r
159 if (fd&0x10) d[3]=0xffffffff;\r
160 if (fd&0x08) d[4]=0xffffffff;\r
161 if (fd&0x04) d[5]=0xffffffff;\r
162 if (fd&0x02) d[6]=0xffffffff;\r
163 if (fd&0x01) d[7]=0xffffffff;\r
164 l++;\r
492d353a 165 }\r
166 screen += 8;\r
167 }\r
168}\r
169\r
170\r
171void osd_text(int x, int y, const char *text)\r
172{\r
173 int len = strlen(text)*8;\r
174\r
175 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
176 int *p, i, h;\r
177 x &= ~3; // align x\r
178 len = (len+3) >> 2;\r
179 for (h = 0; h < 8; h++) {\r
7fd581f4 180 p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h));\r
492d353a 181 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
182 }\r
183 emu_textOut8(x, y, text);\r
184 } else {\r
185 int *p, i, h;\r
186 x &= ~1; // align x\r
187 len++;\r
188 for (h = 0; h < 16; h++) {\r
7fd581f4 189 p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h));\r
de9b1274 190 for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r
492d353a 191 }\r
192 textOut16(x, y, text);\r
193 }\r
194}\r
195\r
196static void draw_cd_leds(void)\r
197{\r
198// static\r
199 int old_reg;\r
200// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
201 old_reg = Pico_mcd->s68k_regs[0];\r
202\r
203 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
204 // 8-bit modes\r
205 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
206 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
7fd581f4 207 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
208 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
209 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
210 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
211 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
212 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
492d353a 213 } else {\r
214 // 16-bit modes\r
7fd581f4 215 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
492d353a 216 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
217 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
e31266dd 218 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
219 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
492d353a 220 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
221 }\r
222}\r
223\r
224static void draw_pico_ptr(void)\r
225{\r
7fd581f4 226 unsigned short *p = (unsigned short *)g_screen_ptr;\r
492d353a 227\r
228 // only if pen enabled and for 16bit modes\r
229 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
230\r
231 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
232 p += 32;\r
233\r
e31266dd 234 p += g_screen_width * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
492d353a 235 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
236 p[0] ^= 0xffff;\r
237 p[319] ^= 0xffff;\r
238 p[320] ^= 0xffff;\r
239 p[321] ^= 0xffff;\r
240 p[640] ^= 0xffff;\r
241}\r
242\r
de9b1274 243#ifdef USE_320_SCREEN\r
244\r
245static int EmuScanBegin16(unsigned int num)\r
246{\r
247 if (!(Pico.video.reg[1]&8)) num += 8;\r
7fd581f4 248 DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2;\r
de9b1274 249 //int w = (Pico.video.reg[12]&1) ? 320 : 256;\r
7fd581f4 250 //DrawLineDest = (unsigned short *)g_screen_ptr + num*w;\r
de9b1274 251\r
252 return 0;\r
253}\r
254\r
255#else // USE_320_SCREEN\r
256\r
492d353a 257static int EmuScanEnd16(unsigned int num)\r
258{\r
259 unsigned char *ps=HighCol+8;\r
260 unsigned short *pd;\r
261 unsigned short *pal=HighPal;\r
262 int sh = Pico.video.reg[0xC]&8;\r
263 int len, mask = 0xff;\r
264\r
265 if (!(Pico.video.reg[1]&8)) num += 8;\r
7fd581f4 266 pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2;\r
492d353a 267\r
268 if (Pico.m.dirtyPal)\r
269 PicoDoHighPal555(sh);\r
270\r
271 if (Pico.video.reg[12]&1) {\r
272 len = 320;\r
273 } else {\r
de9b1274 274 pd += 32*2;\r
492d353a 275 len = 256;\r
276 }\r
277\r
f11bad75 278 if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r
279 mask=0x3f; // messed sprites, upper bits are priority stuff\r
492d353a 280\r
de9b1274 281#if 1\r
282 clut_line(pd, ps, pal, (mask<<16) | len);\r
283#else\r
492d353a 284 for (; len > 0; len--)\r
285 {\r
286 unsigned int p = pal[*ps++ & mask];\r
287 p |= p << 16;\r
288 *(unsigned int *)pd = p;\r
289 *(unsigned int *)(&pd[800]) = p;\r
290 pd += 2;\r
291 }\r
de9b1274 292#endif\r
492d353a 293\r
294 return 0;\r
295}\r
296\r
de9b1274 297#endif // USE_320_SCREEN\r
298\r
492d353a 299int localPal[0x100];\r
300static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
301\r
302static void blit(const char *fps, const char *notice)\r
303{\r
304 int emu_opt = currentConfig.EmuOpt;\r
305\r
306 if (PicoOpt&0x10)\r
307 {\r
308 // 8bit fast renderer\r
309 if (Pico.m.dirtyPal) {\r
310 Pico.m.dirtyPal = 0;\r
311 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
312 // feed new palette to our device\r
7fd581f4 313 // gp2x_video_setpalette(localPal, 0x40);\r
492d353a 314 }\r
315 // a hack for VR\r
316 if (PicoRead16Hook == PicoSVPRead16)\r
317 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
318 // do actual copy\r
7fd581f4 319 vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);\r
492d353a 320 }\r
321 else if (!(emu_opt&0x80))\r
322 {\r
323 // 8bit accurate renderer\r
324 if (Pico.m.dirtyPal)\r
325 {\r
61f66fe0 326 int pallen = 0xc0;\r
492d353a 327 Pico.m.dirtyPal = 0;\r
328 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
329 {\r
330 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
331 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
332 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
333 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
334 pallen = 0x100;\r
335 }\r
492d353a 336 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
337 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
338 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
339 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
340 pallen = 0xc0;\r
341 }\r
342 else {\r
343 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
61f66fe0 344 memcpy32(localPal+0x80, localPal, 0x40);\r
492d353a 345 }\r
346 if (pallen > 0xc0) {\r
347 localPal[0xc0] = 0x0000c000;\r
348 localPal[0xd0] = 0x00c00000;\r
349 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
350 localPal[0xf0] = 0x00ffffff;\r
351 }\r
7fd581f4 352 // gp2x_video_setpalette(localPal, pallen);\r
492d353a 353 }\r
354 }\r
355\r
356 if (notice || (emu_opt & 2)) {\r
e31266dd 357 int h = g_screen_height-16;\r
492d353a 358 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;\r
359 if (notice) osd_text(4, h, notice);\r
360 if (emu_opt & 2)\r
de9b1274 361 osd_text(osd_fps_x, h, fps);\r
492d353a 362 }\r
363 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
364 draw_cd_leds();\r
365 if (PicoAHW & PAHW_PICO)\r
366 draw_pico_ptr();\r
492d353a 367\r
368 //gp2x_video_wait_vsync();\r
7fd581f4 369 // gp2x_video_flip();\r
492d353a 370}\r
371\r
372\r
373// clears whole screen or just the notice area (in all buffers)\r
374static void clearArea(int full)\r
375{\r
7fd581f4 376 if (full) memset(g_screen_ptr, 0, g_screen_width*g_screen_height*2);\r
377 else memset((short *)g_screen_ptr + g_screen_width * (g_screen_height - 16), 0,\r
378 g_screen_width * 16 * 2);\r
492d353a 379}\r
380\r
381\r
382static void vidResetMode(void)\r
383{\r
7fd581f4 384#if 0\r
492d353a 385 if (PicoOpt&0x10) {\r
386 gp2x_video_changemode(8);\r
387 } else if (currentConfig.EmuOpt&0x80) {\r
388 gp2x_video_changemode(16);\r
de9b1274 389#ifdef USE_320_SCREEN\r
390 PicoDrawSetColorFormat(1);\r
391 PicoScanBegin = EmuScanBegin16;\r
392#else\r
492d353a 393 PicoDrawSetColorFormat(-1);\r
394 PicoScanEnd = EmuScanEnd16;\r
de9b1274 395#endif\r
492d353a 396 } else {\r
397 gp2x_video_changemode(8);\r
398 PicoDrawSetColorFormat(2);\r
399 PicoScanBegin = EmuScanBegin8;\r
400 }\r
401 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
402 // setup pal for 8-bit modes\r
403 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
404 localPal[0xd0] = 0x00c00000;\r
405 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
406 localPal[0xf0] = 0x00ffffff;\r
407 gp2x_video_setpalette(localPal, 0x100);\r
408 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
409 gp2x_video_flip();\r
410 }\r
411 Pico.m.dirtyPal = 1;\r
412 // reset scaling\r
413 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
414 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
415 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
7fd581f4 416#else\r
417#ifdef USE_320_SCREEN\r
418 PicoDrawSetColorFormat(1);\r
419 PicoScanBegin = EmuScanBegin16;\r
420#else\r
421 PicoDrawSetColorFormat(-1);\r
422 PicoScanEnd = EmuScanEnd16;\r
423#endif\r
424#endif\r
492d353a 425}\r
426\r
427\r
428static void emu_msg_cb(const char *msg)\r
429{\r
7fd581f4 430/*\r
492d353a 431 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
432 // 8-bit renderers\r
e31266dd 433 gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16), 0xe0, g_screen_width*16);\r
434 osd_text(4, g_screen_height-16, msg);\r
7fd581f4 435 gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16),\r
e31266dd 436 g_screen_width*(g_screen_height-16), g_screen_width*16);\r
492d353a 437 } else {\r
438 // 16bit accurate renderer\r
e31266dd 439 gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16)*2, 0, g_screen_width*16*2);\r
440 osd_text(4, g_screen_height-16, msg);\r
7fd581f4 441 gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16)*2,\r
e31266dd 442 g_screen_width*(g_screen_height-16)*2, g_screen_width*16*2);\r
492d353a 443 }\r
444 gettimeofday(&noticeMsgTime, 0);\r
445 noticeMsgTime.tv_sec -= 2;\r
7fd581f4 446*/\r
492d353a 447 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
448 reset_timing = 1;\r
449}\r
450\r
451static void emu_state_cb(const char *str)\r
452{\r
453 clearArea(0);\r
454 blit("", str);\r
455}\r
456\r
457static void emu_msg_tray_open(void)\r
458{\r
459 strcpy(noticeMsg, "CD tray opened");\r
460 gettimeofday(&noticeMsgTime, 0);\r
461}\r
462\r
fce20e73 463#if 0\r
492d353a 464static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)\r
465{\r
466 int ret, px, py, lim_x;\r
467 static int pdown_frames = 0;\r
468\r
469 emu_RunEventsPico(events);\r
470\r
471 if (pico_inp_mode == 0) return;\r
472\r
473 // for F200\r
474 ret = gp2x_touchpad_read(&px, &py);\r
475 if (ret >= 0)\r
476 {\r
477 if (ret > 35000)\r
478 {\r
479 if (pdown_frames++ > 5)\r
480 PicoPad[0] |= 0x20;\r
481\r
482 pico_pen_x = px;\r
483 pico_pen_y = py;\r
484 if (!(Pico.video.reg[12]&1)) {\r
485 pico_pen_x -= 32;\r
486 if (pico_pen_x < 0) pico_pen_x = 0;\r
487 if (pico_pen_x > 248) pico_pen_x = 248;\r
488 }\r
489 if (pico_pen_y > 224) pico_pen_y = 224;\r
490 }\r
491 else\r
492 pdown_frames = 0;\r
493\r
494 //if (ret == 0)\r
495 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
496 }\r
497\r
498 PicoPad[0] &= ~0x0f; // release UDLR\r
499 if (gp2x_keys & GP2X_UP) pico_pen_y--;\r
500 if (gp2x_keys & GP2X_DOWN) pico_pen_y++;\r
501 if (gp2x_keys & GP2X_LEFT) pico_pen_x--;\r
502 if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;\r
503\r
504 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
505 if (pico_pen_y < 8) pico_pen_y = 8;\r
506 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
507 if (pico_pen_x < 0) pico_pen_x = 0;\r
508 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
509\r
510 PicoPicohw.pen_pos[0] = pico_pen_x;\r
511 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
512 PicoPicohw.pen_pos[0] += 0x3c;\r
513 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
514}\r
fce20e73 515#endif\r
492d353a 516\r
517static void update_volume(int has_changed, int is_up)\r
518{\r
519 static int prev_frame = 0, wait_frames = 0;\r
520 int vol = currentConfig.volume;\r
521\r
522 if (has_changed)\r
523 {\r
524 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
525 wait_frames++;\r
526 else {\r
527 if (is_up) {\r
528 if (vol < 99) vol++;\r
529 } else {\r
530 if (vol > 0) vol--;\r
531 }\r
532 wait_frames = 0;\r
b3972d82 533 sndout_oss_setvol(vol, vol);\r
492d353a 534 currentConfig.volume = vol;\r
535 }\r
536 sprintf(noticeMsg, "VOL: %02i", vol);\r
537 gettimeofday(&noticeMsgTime, 0);\r
538 prev_frame = Pico.m.frame_count;\r
539 }\r
540\r
541 // set the right mixer func\r
542 if (!(PicoOpt&8)) return; // just use defaults for mono\r
543 if (vol >= 5)\r
544 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
545 else {\r
546 mix_32_to_16l_level = 5 - vol;\r
547 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
548 }\r
549}\r
550\r
551static void RunEvents(unsigned int which)\r
552{\r
553 if (which & 0x1800) // save or load (but not both)\r
554 {\r
555 int do_it = 1;\r
556 if ( emu_checkSaveFile(state_slot) &&\r
557 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
558 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
fce20e73 559#if 0\r
492d353a 560 unsigned long keys;\r
561 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
562 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
563 usleep(50*1024);\r
564 if (keys & GP2X_X) do_it = 0;\r
565 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release\r
566 usleep(50*1024);\r
567 clearArea(0);\r
fce20e73 568#endif\r
492d353a 569 }\r
570 if (do_it) {\r
e31266dd 571 osd_text(4, g_screen_height-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
492d353a 572 PicoStateProgressCB = emu_state_cb;\r
7fd581f4 573 //gp2x_memcpy_all_buffers(g_screen_ptr, 0, g_screen_width*g_screen_height*2);\r
492d353a 574 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
575 PicoStateProgressCB = NULL;\r
576 }\r
577\r
578 reset_timing = 1;\r
579 }\r
580 if (which & 0x0400) // switch renderer\r
581 {\r
582 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
583 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
584 else currentConfig.EmuOpt &= ~0x80;\r
585\r
586 vidResetMode();\r
587\r
588 if (PicoOpt&0x10) {\r
589 strcpy(noticeMsg, " 8bit fast renderer");\r
590 } else if (currentConfig.EmuOpt&0x80) {\r
591 strcpy(noticeMsg, "16bit accurate renderer");\r
592 } else {\r
593 strcpy(noticeMsg, " 8bit accurate renderer");\r
594 }\r
595\r
596 gettimeofday(&noticeMsgTime, 0);\r
597 }\r
598 if (which & 0x0300)\r
599 {\r
600 if(which&0x0200) {\r
601 state_slot -= 1;\r
602 if(state_slot < 0) state_slot = 9;\r
603 } else {\r
604 state_slot += 1;\r
605 if(state_slot > 9) state_slot = 0;\r
606 }\r
607 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
608 gettimeofday(&noticeMsgTime, 0);\r
609 }\r
610 if (which & 0x0080) {\r
611 engineState = PGS_Menu;\r
612 }\r
613}\r
614\r
615static void updateKeys(void)\r
616{\r
fce20e73 617 unsigned int allActions[2] = { 0, 0 }, events;\r
492d353a 618 static unsigned int prevEvents = 0;\r
492d353a 619\r
fce20e73 620 /* FIXME: combos, player2 */\r
621 allActions[0] = in_update();\r
492d353a 622\r
623 PicoPad[0] = allActions[0] & 0xfff;\r
624 PicoPad[1] = allActions[1] & 0xfff;\r
625\r
626 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
627 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
628\r
629 events = (allActions[0] | allActions[1]) >> 16;\r
630\r
631 // volume is treated in special way and triggered every frame\r
632 if (events & 0x6000)\r
633 update_volume(1, events & 0x2000);\r
634\r
635 if ((events ^ prevEvents) & 0x40) {\r
636 emu_changeFastForward(events & 0x40);\r
637 update_volume(0, 0);\r
638 reset_timing = 1;\r
639 }\r
640\r
641 events &= ~prevEvents;\r
642\r
fce20e73 643/*\r
492d353a 644 if (PicoAHW == PAHW_PICO)\r
645 RunEventsPico(events, keys);\r
fce20e73 646*/\r
492d353a 647 if (events) RunEvents(events);\r
648 if (movie_data) emu_updateMovie();\r
649\r
650 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
651}\r
652\r
653\r
654static void updateSound(int len)\r
655{\r
656 if (PicoOpt&8) len<<=1;\r
657\r
658 /* avoid writing audio when lagging behind to prevent audio lag */\r
659 if (PicoSkipFrame != 2)\r
b3972d82 660 sndout_oss_write(PsndOut, len<<1);\r
492d353a 661}\r
662\r
663\r
664static void SkipFrame(int do_audio)\r
665{\r
666 PicoSkipFrame=do_audio ? 1 : 2;\r
667 PicoFrame();\r
668 PicoSkipFrame=0;\r
669}\r
670\r
671\r
672void emu_forcedFrame(int opts)\r
673{\r
674 int po_old = PicoOpt;\r
675 int eo_old = currentConfig.EmuOpt;\r
676\r
677 PicoOpt &= ~0x10;\r
678 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
679 currentConfig.EmuOpt |= 0x80;\r
680\r
681 //vidResetMode();\r
de9b1274 682#ifdef USE_320_SCREEN\r
683 PicoDrawSetColorFormat(1);\r
684 PicoScanBegin = EmuScanBegin16;\r
685#else\r
492d353a 686 PicoDrawSetColorFormat(-1);\r
687 PicoScanEnd = EmuScanEnd16;\r
de9b1274 688#endif\r
492d353a 689 Pico.m.dirtyPal = 1;\r
690 PicoFrameDrawOnly();\r
691\r
692/*\r
693 if (!(Pico.video.reg[12]&1)) {\r
694 vidCpyM2 = vidCpyM2_32col;\r
695 clearArea(1);\r
696 } else vidCpyM2 = vidCpyM2_40col;\r
697\r
7fd581f4 698 vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);\r
492d353a 699 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
700 gp2x_video_setpalette(localPal, 0x40);\r
701*/\r
702 PicoOpt = po_old;\r
703 currentConfig.EmuOpt = eo_old;\r
704}\r
705\r
f11bad75 706void emu_platformDebugCat(char *str)\r
707{\r
708 // nothing\r
709}\r
710\r
492d353a 711static void simpleWait(int thissec, int lim_time)\r
712{\r
713 struct timeval tval;\r
714\r
715 spend_cycles(1024);\r
716 gettimeofday(&tval, 0);\r
717 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
718\r
719 while (tval.tv_usec < lim_time)\r
720 {\r
721 spend_cycles(1024);\r
722 gettimeofday(&tval, 0);\r
723 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
724 }\r
725}\r
726\r
fce20e73 727void emu_startSound(void)\r
728{\r
729 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
730 int target_fps = Pico.m.pal ? 50 : 60;\r
731\r
732 PsndOut = NULL;\r
733\r
734 if (currentConfig.EmuOpt & 4)\r
735 {\r
736 int snd_excess_add;\r
737 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)\r
738 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
739\r
740 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
741 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
742 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
743 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
744 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
745 PicoWriteSound = updateSound;\r
746 update_volume(0, 0);\r
747 memset(sndBuffer, 0, sizeof(sndBuffer));\r
748 PsndOut = sndBuffer;\r
749 PsndRate_old = PsndRate;\r
750 PicoOpt_old = PicoOpt;\r
751 pal_old = Pico.m.pal;\r
752 }\r
753}\r
754\r
755void emu_endSound(void)\r
756{\r
757}\r
758\r
759/* wait until we can write more sound */\r
760void emu_waitSound(void)\r
761{\r
762 // don't need to do anything, writes will block by themselves\r
763}\r
492d353a 764\r
765void emu_Loop(void)\r
766{\r
492d353a 767 char fpsbuff[24]; // fps count c string\r
768 struct timeval tval; // timing\r
769 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
770 int frames_done, frames_shown, thissec; // actual frames\r
771 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
772 char *notice = 0;\r
773\r
774 printf("entered emu_Loop()\n");\r
775\r
776 fpsbuff[0] = 0;\r
777\r
778 // make sure we are in correct mode\r
779 vidResetMode();\r
492d353a 780 Pico.m.dirtyPal = 1;\r
781 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
492d353a 782\r
783 // pal/ntsc might have changed, reset related stuff\r
784 target_fps = Pico.m.pal ? 50 : 60;\r
785 target_frametime = 1000000/target_fps;\r
786 reset_timing = 1;\r
787\r
fce20e73 788 emu_startSound();\r
492d353a 789\r
790 // prepare CD buffer\r
791 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
792\r
793 // calc vsync offset to sync timing code with vsync\r
794 if (currentConfig.EmuOpt&0x2000) {\r
795 gettimeofday(&tval, 0);\r
7fd581f4 796 //gp2x_video_wait_vsync();\r
492d353a 797 gettimeofday(&tval, 0);\r
798 vsync_offset = tval.tv_usec;\r
799 while (vsync_offset >= target_frametime)\r
800 vsync_offset -= target_frametime;\r
801 if (!vsync_offset) vsync_offset++;\r
802 printf("vsync_offset: %i\n", vsync_offset);\r
803 } else\r
804 vsync_offset = 0;\r
805\r
806 frames_done = frames_shown = thissec =\r
807 pframes_done = pframes_shown = pthissec = 0;\r
808\r
809 // loop\r
810 while (engineState == PGS_Running)\r
811 {\r
812 int modes;\r
813\r
814 gettimeofday(&tval, 0);\r
815 if (reset_timing) {\r
816 reset_timing = 0;\r
817 pthissec = tval.tv_sec;\r
818 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
819 }\r
820\r
821 // show notice message?\r
822 if (noticeMsgTime.tv_sec)\r
823 {\r
824 static int noticeMsgSum;\r
825 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
826 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
827 clearArea(0);\r
828 notice = 0;\r
829 } else {\r
830 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
831 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
832 notice = noticeMsg;\r
833 }\r
834 }\r
835\r
836 // check for mode changes\r
837 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
838 if (modes != oldmodes)\r
839 {\r
e31266dd 840 int scalex = g_screen_width;\r
492d353a 841 osd_fps_x = OSD_FPS_X;\r
842 if (modes & 4) {\r
843 vidCpyM2 = vidCpyM2_40col;\r
844 } else {\r
845 if (PicoOpt & 0x100) {\r
846 vidCpyM2 = vidCpyM2_32col_nobord;\r
847 scalex = 256;\r
848 osd_fps_x = OSD_FPS_X - 64;\r
849 } else {\r
850 vidCpyM2 = vidCpyM2_32col;\r
851 }\r
852 }\r
7fd581f4 853 //if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
854 // gp2x_video_RGB_setscaling(8, scalex, 224);\r
855 // else gp2x_video_RGB_setscaling(0, scalex, 240);\r
492d353a 856 oldmodes = modes;\r
857 clearArea(1);\r
858 }\r
859\r
860 // second changed?\r
861 if (thissec != tval.tv_sec)\r
862 {\r
863#ifdef BENCHMARK\r
864 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
de9b1274 865 if (++bench == 4) {\r
492d353a 866 bench = 0;\r
de9b1274 867 bench_fps_s = bench_fps / 4;\r
868 bf[bfp++ & 3] = bench_fps / 4;\r
492d353a 869 bench_fps = 0;\r
870 }\r
871 bench_fps += frames_shown;\r
de9b1274 872 sprintf(fpsbuff, "%3i/%3i/%3i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
5d239ae7 873 printf("%s\n", fpsbuff);\r
492d353a 874#else\r
875 if (currentConfig.EmuOpt & 2) {\r
de9b1274 876 sprintf(fpsbuff, "%3i/%3i", frames_shown, frames_done);\r
492d353a 877 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
878 }\r
879#endif\r
880 frames_shown = frames_done = 0;\r
881 thissec = tval.tv_sec;\r
882 }\r
883#ifdef PFRAMES\r
884 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
885#endif\r
886\r
887 if (pthissec != tval.tv_sec)\r
888 {\r
889 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
890 pframes_done = pframes_shown = 0;\r
891 } else {\r
892 // it is quite common for this implementation to leave 1 fame unfinished\r
893 // when second changes, but we don't want buffer to starve.\r
894 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
895 updateKeys();\r
896 SkipFrame(1); pframes_done++;\r
897 }\r
898\r
899 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
900 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
901 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
902 }\r
903 pthissec = tval.tv_sec;\r
904 }\r
905\r
906 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
907 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
908 {\r
909 for(i = 0; i < currentConfig.Frameskip; i++) {\r
910 updateKeys();\r
911 SkipFrame(1); pframes_done++; frames_done++;\r
912 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
913 gettimeofday(&tval, 0);\r
914 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
915 if (tval.tv_usec < lim_time) { // we are too fast\r
916 simpleWait(pthissec, lim_time);\r
917 }\r
918 }\r
919 lim_time += target_frametime;\r
920 }\r
921 }\r
922 else if (tval.tv_usec > lim_time) // auto frameskip\r
923 {\r
924 // no time left for this frame - skip\r
925 if (tval.tv_usec - lim_time >= 300000) {\r
926 /* something caused a slowdown for us (disk access? cache flush?)\r
927 * try to recover by resetting timing... */\r
928 reset_timing = 1;\r
929 continue;\r
930 }\r
931 updateKeys();\r
932 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
933 continue;\r
934 }\r
935\r
936 updateKeys();\r
937 PicoFrame();\r
938\r
939 // check time\r
940 gettimeofday(&tval, 0);\r
941 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
942\r
943 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
944 reset_timing = 1;\r
095a240b 945#if 1\r
946 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
492d353a 947 {\r
948 // sleep or vsync if we are still too fast\r
949 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
950 if (!reset_timing && tval.tv_usec < lim_time)\r
951 {\r
952 // we are too fast\r
953 if (vsync_offset) {\r
954 if (lim_time - tval.tv_usec > target_frametime/2)\r
955 simpleWait(pthissec, lim_time - target_frametime/4);\r
7fd581f4 956 // gp2x_video_wait_vsync();\r
492d353a 957 } else {\r
958 simpleWait(pthissec, lim_time);\r
959 }\r
960 }\r
961 }\r
095a240b 962#endif\r
492d353a 963 blit(fpsbuff, notice);\r
964\r
965 pframes_done++; pframes_shown++;\r
966 frames_done++; frames_shown++;\r
967 }\r
968\r
969 emu_changeFastForward(0);\r
970\r
971 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
972\r
973 // save SRAM\r
974 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
975 emu_state_cb("Writing SRAM/BRAM..");\r
976 emu_SaveLoadGame(0, 1);\r
977 SRam.changed = 0;\r
978 }\r
979\r
980 // if in 8bit mode, generate 16bit image for menu background\r
981 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
982 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
983}\r
984\r
985\r
986void emu_ResetGame(void)\r
987{\r
988 PicoReset();\r
989 reset_timing = 1;\r
990}\r
991\r
PicoDrive's frontend in a lib