notaz.gp2x.de / libpicofe.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
further prep for Wiz port. Cleanups, rm cpuctrl mmuhack; add warm
[libpicofe.git] / gp2x / emu.c
... / ...
CommitLineData
1// (c) Copyright 2006-2007 notaz, All rights reserved.\r
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 "emu.h"\r
18#include "plat_gp2x.h"\r
19#include "soc.h"\r
20#include "../common/menu.h"\r
21#include "../common/arm_utils.h"\r
22#include "../common/fonts.h"\r
23#include "../common/emu.h"\r
24#include "../common/config.h"\r
25#include "../common/input.h"\r
26#include "../linux/sndout_oss.h"\r
27#include "version.h"\r
28\r
29#include <pico/pico_int.h>\r
30#include <pico/patch.h>\r
31#include <pico/sound/mix.h>\r
32#include <zlib/zlib.h>\r
33\r
34//#define PFRAMES\r
35\r
36#ifdef BENCHMARK\r
37#define OSD_FPS_X 220\r
38#else\r
39#define OSD_FPS_X 260\r
40#endif\r
41\r
42\r
43extern int crashed_940;\r
44\r
45static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
46static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
47static int osd_fps_x;\r
48static int gp2x_old_gamma = 100;\r
49unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
50int reset_timing = 0;\r
51\r
52#define PICO_PEN_ADJUST_X 4\r
53#define PICO_PEN_ADJUST_Y 2\r
54static int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
55\r
56static void emu_msg_cb(const char *msg);\r
57static void emu_msg_tray_open(void);\r
58\r
59\r
60void emu_noticeMsgUpdated(void)\r
61{\r
62 gettimeofday(&noticeMsgTime, 0);\r
63}\r
64\r
65int emu_getMainDir(char *dst, int len)\r
66{\r
67 extern char **g_argv;\r
68 int j;\r
69\r
70 strncpy(dst, g_argv[0], len);\r
71 len -= 32; // reserve\r
72 if (len < 0) len = 0;\r
73 dst[len] = 0;\r
74 for (j = strlen(dst); j > 0; j--)\r
75 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
76\r
77 return j + 1;\r
78}\r
79\r
80void emu_Init(void)\r
81{\r
82 // make temp buffer for alt renderer\r
83 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
84 if (!PicoDraw2FB)\r
85 {\r
86 printf("PicoDraw2FB == 0\n");\r
87 }\r
88\r
89 // make dirs for saves, cfgs, etc.\r
90 mkdir("mds", 0777);\r
91 mkdir("srm", 0777);\r
92 mkdir("brm", 0777);\r
93 mkdir("cfg", 0777);\r
94\r
95 PicoInit();\r
96 PicoMessage = emu_msg_cb;\r
97 PicoMCDopenTray = emu_msg_tray_open;\r
98 PicoMCDcloseTray = menu_loop_tray;\r
99}\r
100\r
101\r
102static void scaling_update(void)\r
103{\r
104 PicoOpt &= ~0x4100;\r
105 switch (currentConfig.scaling) {\r
106 default: break; // off\r
107 case 1: // hw hor\r
108 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
109 case 3: PicoOpt |= 0x4000; break; // sw hor\r
110 }\r
111}\r
112\r
113\r
114void emu_Deinit(void)\r
115{\r
116 // save SRAM\r
117 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
118 emu_SaveLoadGame(0, 1);\r
119 SRam.changed = 0;\r
120 }\r
121\r
122 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG))\r
123 emu_writelrom();\r
124\r
125 free(PicoDraw2FB);\r
126\r
127 PicoExit();\r
128\r
129 // restore gamma\r
130 if (gp2x_old_gamma != 100)\r
131 set_lcd_gamma(100, 0);\r
132}\r
133\r
134void emu_prepareDefaultConfig(void)\r
135{\r
136 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
137 defaultConfig.EmuOpt = 0x9d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds\r
138 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;\r
139 defaultConfig.s_PsndRate = 44100;\r
140 defaultConfig.s_PicoRegion = 0; // auto\r
141 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
142 defaultConfig.s_PicoCDBuffers = 0;\r
143 defaultConfig.Frameskip = -1; // auto\r
144 defaultConfig.CPUclock = -1;\r
145 defaultConfig.volume = 50;\r
146 defaultConfig.gamma = 100;\r
147 defaultConfig.scaling = 0;\r
148 defaultConfig.turbo_rate = 15;\r
149}\r
150\r
151void osd_text(int x, int y, const char *text)\r
152{\r
153 int len = strlen(text)*8;\r
154 int *p, i, h, offs;\r
155\r
156 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
157 len = (len+3) >> 2;\r
158 for (h = 0; h < 8; h++) {\r
159 offs = (x + g_screen_width * (y+h)) & ~3;\r
160 p = (int *) ((char *)g_screen_ptr + offs);\r
161 for (i = len; i; i--, p++)\r
162 *p = 0xe0e0e0e0;\r
163 }\r
164 emu_textOut8(x, y, text);\r
165 } else {\r
166 len = (len+1) >> 1;\r
167 for (h = 0; h < 8; h++) {\r
168 offs = (x + g_screen_width * (y+h)) & ~1;\r
169 p = (int *) ((short *)g_screen_ptr + offs);\r
170 for (i = len; i; i--, p++)\r
171 *p = (*p >> 2) & 0x39e7;\r
172 }\r
173 emu_textOut16(x, y, text);\r
174 }\r
175}\r
176\r
177static void draw_cd_leds(void)\r
178{\r
179// static\r
180 int old_reg;\r
181// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
182 old_reg = Pico_mcd->s68k_regs[0];\r
183\r
184 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
185 // 8-bit modes\r
186 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
187 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
188 *(unsigned int *)((char *)g_screen_ptr + 320*2+ 4) =\r
189 *(unsigned int *)((char *)g_screen_ptr + 320*3+ 4) =\r
190 *(unsigned int *)((char *)g_screen_ptr + 320*4+ 4) = col_g;\r
191 *(unsigned int *)((char *)g_screen_ptr + 320*2+12) =\r
192 *(unsigned int *)((char *)g_screen_ptr + 320*3+12) =\r
193 *(unsigned int *)((char *)g_screen_ptr + 320*4+12) = col_r;\r
194 } else {\r
195 // 16-bit modes\r
196 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + 320*2+4);\r
197 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
198 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
199 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
200 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
201 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
202 }\r
203}\r
204\r
205static void draw_pico_ptr(void)\r
206{\r
207 unsigned short *p = (unsigned short *)g_screen_ptr;\r
208\r
209 // only if pen enabled and for 16bit modes\r
210 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
211\r
212 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
213 p += 32;\r
214\r
215 p += 320 * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
216 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
217 p[0] ^= 0xffff;\r
218 p[319] ^= 0xffff;\r
219 p[320] ^= 0xffff;\r
220 p[321] ^= 0xffff;\r
221 p[640] ^= 0xffff;\r
222}\r
223\r
224static int EmuScanBegin16(unsigned int num)\r
225{\r
226 if (!(Pico.video.reg[1]&8)) num += 8;\r
227 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;\r
228\r
229 return 0;\r
230}\r
231\r
232static int EmuScanBegin8(unsigned int num)\r
233{\r
234 if (!(Pico.video.reg[1]&8)) num += 8;\r
235 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;\r
236\r
237 return 0;\r
238}\r
239\r
240int localPal[0x100];\r
241static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
242\r
243static void blit(const char *fps, const char *notice)\r
244{\r
245 int emu_opt = currentConfig.EmuOpt;\r
246\r
247 if (PicoOpt&0x10)\r
248 {\r
249 // 8bit fast renderer\r
250 if (Pico.m.dirtyPal) {\r
251 Pico.m.dirtyPal = 0;\r
252 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
253 // feed new palette to our device\r
254 gp2x_video_setpalette(localPal, 0x40);\r
255 }\r
256 // a hack for VR\r
257 if (PicoRead16Hook == PicoSVPRead16)\r
258 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
259 // do actual copy\r
260 vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r
261 }\r
262 else if (!(emu_opt&0x80))\r
263 {\r
264 // 8bit accurate renderer\r
265 if (Pico.m.dirtyPal)\r
266 {\r
267 int pallen = 0xc0;\r
268 Pico.m.dirtyPal = 0;\r
269 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
270 {\r
271 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
272 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
273 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
274 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
275 pallen = 0x100;\r
276 }\r
277 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
278 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
279 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
280 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
281 }\r
282 else {\r
283 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
284 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
285 }\r
286 if (pallen > 0xc0) {\r
287 localPal[0xc0] = 0x0000c000;\r
288 localPal[0xd0] = 0x00c00000;\r
289 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
290 localPal[0xf0] = 0x00ffffff;\r
291 }\r
292 gp2x_video_setpalette(localPal, pallen);\r
293 }\r
294 }\r
295\r
296 if (notice || (emu_opt & 2)) {\r
297 int h = 232;\r
298 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
299 if (notice) osd_text(4, h, notice);\r
300 if (emu_opt & 2)\r
301 osd_text(osd_fps_x, h, fps);\r
302 }\r
303 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
304 draw_cd_leds();\r
305 if (PicoAHW & PAHW_PICO)\r
306 draw_pico_ptr();\r
307\r
308 //gp2x_video_wait_vsync();\r
309 gp2x_video_flip();\r
310\r
311 if (!(PicoOpt&0x10)) {\r
312 if (!(Pico.video.reg[1]&8)) {\r
313 if (currentConfig.EmuOpt&0x80) {\r
314 DrawLineDest = (unsigned short *) g_screen_ptr + 320*8;\r
315 } else {\r
316 DrawLineDest = (unsigned char *) g_screen_ptr + 320*8;\r
317 }\r
318 } else {\r
319 DrawLineDest = g_screen_ptr;\r
320 }\r
321 }\r
322}\r
323\r
324\r
325// clears whole screen or just the notice area (in all buffers)\r
326static void clearArea(int full)\r
327{\r
328 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
329 // 8-bit renderers\r
330 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
331 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
332 } else {\r
333 // 16bit accurate renderer\r
334 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
335 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
336 }\r
337}\r
338\r
339\r
340static void vidResetMode(void)\r
341{\r
342 if (PicoOpt&0x10) {\r
343 gp2x_video_changemode(8);\r
344 } else if (currentConfig.EmuOpt&0x80) {\r
345 gp2x_video_changemode(16);\r
346 PicoDrawSetColorFormat(1);\r
347 PicoScanBegin = EmuScanBegin16;\r
348 } else {\r
349 gp2x_video_changemode(8);\r
350 PicoDrawSetColorFormat(2);\r
351 PicoScanBegin = EmuScanBegin8;\r
352 }\r
353 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
354 // setup pal for 8-bit modes\r
355 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
356 localPal[0xd0] = 0x00c00000;\r
357 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
358 localPal[0xf0] = 0x00ffffff;\r
359 gp2x_video_setpalette(localPal, 0x100);\r
360 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
361 gp2x_video_flip();\r
362 }\r
363 Pico.m.dirtyPal = 1;\r
364 // reset scaling\r
365 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
366 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
367 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
368}\r
369\r
370\r
371static void emu_msg_cb(const char *msg)\r
372{\r
373 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
374 // 8-bit renderers\r
375 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
376 osd_text(4, 232, msg);\r
377 gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232, 320*232, 320*8);\r
378 } else {\r
379 // 16bit accurate renderer\r
380 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
381 osd_text(4, 232, msg);\r
382 gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232*2, 320*232*2, 320*8*2);\r
383 }\r
384 gettimeofday(&noticeMsgTime, 0);\r
385 noticeMsgTime.tv_sec -= 2;\r
386\r
387 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
388 reset_timing = 1;\r
389}\r
390\r
391static void emu_state_cb(const char *str)\r
392{\r
393 clearArea(0);\r
394 blit("", str);\r
395}\r
396\r
397static void emu_msg_tray_open(void)\r
398{\r
399 strcpy(noticeMsg, "CD tray opened");\r
400 gettimeofday(&noticeMsgTime, 0);\r
401}\r
402\r
403static void RunEventsPico(unsigned int events)\r
404{\r
405 int ret, px, py, lim_x;\r
406 static int pdown_frames = 0;\r
407\r
408 emu_RunEventsPico(events);\r
409\r
410 if (pico_inp_mode == 0) return;\r
411\r
412 // for F200\r
413 ret = gp2x_touchpad_read(&px, &py);\r
414 if (ret >= 0)\r
415 {\r
416 if (ret > 35000)\r
417 {\r
418 if (pdown_frames++ > 5)\r
419 PicoPad[0] |= 0x20;\r
420\r
421 pico_pen_x = px;\r
422 pico_pen_y = py;\r
423 if (!(Pico.video.reg[12]&1)) {\r
424 pico_pen_x -= 32;\r
425 if (pico_pen_x < 0) pico_pen_x = 0;\r
426 if (pico_pen_x > 248) pico_pen_x = 248;\r
427 }\r
428 if (pico_pen_y > 224) pico_pen_y = 224;\r
429 }\r
430 else\r
431 pdown_frames = 0;\r
432\r
433 //if (ret == 0)\r
434 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
435 }\r
436\r
437 if (PicoPad[0] & 1) pico_pen_y--;\r
438 if (PicoPad[0] & 2) pico_pen_y++;\r
439 if (PicoPad[0] & 4) pico_pen_x--;\r
440 if (PicoPad[0] & 8) pico_pen_x++;\r
441 PicoPad[0] &= ~0x0f; // release UDLR\r
442\r
443 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
444 if (pico_pen_y < 8) pico_pen_y = 8;\r
445 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
446 if (pico_pen_x < 0) pico_pen_x = 0;\r
447 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
448\r
449 PicoPicohw.pen_pos[0] = pico_pen_x;\r
450 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
451 PicoPicohw.pen_pos[0] += 0x3c;\r
452 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
453}\r
454\r
455static void update_volume(int has_changed, int is_up)\r
456{\r
457 static int prev_frame = 0, wait_frames = 0;\r
458 int vol = currentConfig.volume;\r
459\r
460 if (has_changed)\r
461 {\r
462 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
463 wait_frames++;\r
464 else {\r
465 if (is_up) {\r
466 if (vol < 99) vol++;\r
467 } else {\r
468 if (vol > 0) vol--;\r
469 }\r
470 wait_frames = 0;\r
471 sndout_oss_setvol(vol, vol);\r
472 currentConfig.volume = vol;\r
473 }\r
474 sprintf(noticeMsg, "VOL: %02i", vol);\r
475 gettimeofday(&noticeMsgTime, 0);\r
476 prev_frame = Pico.m.frame_count;\r
477 }\r
478\r
479 // set the right mixer func\r
480 if (!(PicoOpt&8)) return; // just use defaults for mono\r
481 if (vol >= 5)\r
482 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
483 else {\r
484 mix_32_to_16l_level = 5 - vol;\r
485 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
486 }\r
487}\r
488\r
489static void RunEvents(unsigned int which)\r
490{\r
491 if (which & 0x1800) // save or load (but not both)\r
492 {\r
493 int do_it = 1;\r
494 if ( emu_checkSaveFile(state_slot) &&\r
495 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
496 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save\r
497 {\r
498 const char *nm;\r
499 char tmp[64];\r
500 int keys, len;\r
501\r
502 strcpy(tmp, (which & 0x1000) ? "LOAD STATE? " : "OVERWRITE SAVE? ");\r
503 len = strlen(tmp);\r
504 nm = in_get_key_name(-1, -PBTN_MA3);\r
505 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
506 len = strlen(tmp);\r
507 nm = in_get_key_name(-1, -PBTN_MBACK);\r
508 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
509\r
510 blit("", tmp);\r
511\r
512 in_set_blocking(1);\r
513 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK)); // wait for release\r
514 while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) ); // .. press\r
515 if (keys & PBTN_MBACK)\r
516 do_it = 0;\r
517 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK)); // .. release\r
518 in_set_blocking(0);\r
519\r
520 clearArea(0);\r
521 }\r
522 if (do_it) {\r
523 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
524 PicoStateProgressCB = emu_state_cb;\r
525 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r
526 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
527 PicoStateProgressCB = NULL;\r
528 }\r
529\r
530 reset_timing = 1;\r
531 }\r
532 if (which & 0x0400) // switch renderer\r
533 {\r
534 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
535 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
536 else currentConfig.EmuOpt &= ~0x80;\r
537\r
538 vidResetMode();\r
539\r
540 if (PicoOpt&0x10) {\r
541 strcpy(noticeMsg, " 8bit fast renderer");\r
542 } else if (currentConfig.EmuOpt&0x80) {\r
543 strcpy(noticeMsg, "16bit accurate renderer");\r
544 } else {\r
545 strcpy(noticeMsg, " 8bit accurate renderer");\r
546 }\r
547\r
548 emu_noticeMsgUpdated();\r
549 }\r
550 if (which & 0x0300)\r
551 {\r
552 if(which&0x0200) {\r
553 state_slot -= 1;\r
554 if(state_slot < 0) state_slot = 9;\r
555 } else {\r
556 state_slot += 1;\r
557 if(state_slot > 9) state_slot = 0;\r
558 }\r
559 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
560 emu_noticeMsgUpdated();\r
561 }\r
562 if (which & 0x0080) {\r
563 engineState = PGS_Menu;\r
564 }\r
565}\r
566\r
567static void updateKeys(void)\r
568{\r
569 unsigned int allActions[2] = { 0, 0 }, events;\r
570 static unsigned int prevEvents = 0;\r
571\r
572 /* FIXME: player2 */\r
573 allActions[0] = in_update();\r
574\r
575 PicoPad[0] = allActions[0] & 0xfff;\r
576 PicoPad[1] = allActions[1] & 0xfff;\r
577\r
578 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
579 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
580\r
581 events = (allActions[0] | allActions[1]) >> 16;\r
582\r
583 // volume is treated in special way and triggered every frame\r
584 if (events & 0x6000)\r
585 update_volume(1, events & 0x2000);\r
586\r
587 if ((events ^ prevEvents) & 0x40) {\r
588 emu_changeFastForward(events & 0x40);\r
589 update_volume(0, 0);\r
590 reset_timing = 1;\r
591 }\r
592\r
593 events &= ~prevEvents;\r
594\r
595 if (PicoAHW == PAHW_PICO)\r
596 RunEventsPico(events);\r
597 if (events) RunEvents(events);\r
598 if (movie_data) emu_updateMovie();\r
599\r
600 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
601}\r
602\r
603\r
604static void updateSound(int len)\r
605{\r
606 if (PicoOpt&8) len<<=1;\r
607\r
608 /* avoid writing audio when lagging behind to prevent audio lag */\r
609 if (PicoSkipFrame != 2)\r
610 sndout_oss_write(PsndOut, len<<1);\r
611}\r
612\r
613void emu_startSound(void)\r
614{\r
615 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
616 int target_fps = Pico.m.pal ? 50 : 60;\r
617\r
618 PsndOut = NULL;\r
619\r
620 // prepare sound stuff\r
621 if (currentConfig.EmuOpt & 4)\r
622 {\r
623 int snd_excess_add;\r
624 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
625 ((PicoOpt&0x200) && crashed_940)) {\r
626 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
627 }\r
628 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
629 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
630 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
631 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
632 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
633 PicoWriteSound = updateSound;\r
634 update_volume(0, 0);\r
635 memset(sndBuffer, 0, sizeof(sndBuffer));\r
636 PsndOut = sndBuffer;\r
637 PsndRate_old = PsndRate;\r
638 PicoOpt_old = PicoOpt;\r
639 pal_old = Pico.m.pal;\r
640 }\r
641}\r
642\r
643void emu_endSound(void)\r
644{\r
645}\r
646\r
647/* wait until we can write more sound */\r
648void emu_waitSound(void)\r
649{\r
650 // don't need to do anything, writes will block by themselves\r
651}\r
652\r
653\r
654static void SkipFrame(int do_audio)\r
655{\r
656 PicoSkipFrame=do_audio ? 1 : 2;\r
657 PicoFrame();\r
658 PicoSkipFrame=0;\r
659}\r
660\r
661\r
662void emu_forcedFrame(int opts)\r
663{\r
664 int po_old = PicoOpt;\r
665 int eo_old = currentConfig.EmuOpt;\r
666\r
667 PicoOpt &= ~0x10;\r
668 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
669 currentConfig.EmuOpt |= 0x80;\r
670\r
671 //vidResetMode();\r
672 PicoDrawSetColorFormat(1);\r
673 PicoScanBegin = EmuScanBegin16;\r
674 Pico.m.dirtyPal = 1;\r
675 PicoFrameDrawOnly();\r
676\r
677/*\r
678 if (!(Pico.video.reg[12]&1)) {\r
679 vidCpyM2 = vidCpyM2_32col;\r
680 clearArea(1);\r
681 } else vidCpyM2 = vidCpyM2_40col;\r
682\r
683 vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r
684 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
685 gp2x_video_setpalette(localPal, 0x40);\r
686*/\r
687 PicoOpt = po_old;\r
688 currentConfig.EmuOpt = eo_old;\r
689}\r
690\r
691void emu_platformDebugCat(char *str)\r
692{\r
693 // nothing\r
694}\r
695\r
696static void simpleWait(int thissec, int lim_time)\r
697{\r
698 struct timeval tval;\r
699\r
700 spend_cycles(1024);\r
701 gettimeofday(&tval, 0);\r
702 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
703\r
704 while (tval.tv_usec < lim_time)\r
705 {\r
706 spend_cycles(1024);\r
707 gettimeofday(&tval, 0);\r
708 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
709 }\r
710}\r
711\r
712\r
713#if 0\r
714static void tga_dump(void)\r
715{\r
716#define BYTE unsigned char\r
717#define WORD unsigned short\r
718 struct\r
719 {\r
720 BYTE IDLength; /* 00h Size of Image ID field */\r
721 BYTE ColorMapType; /* 01h Color map type */\r
722 BYTE ImageType; /* 02h Image type code */\r
723 WORD CMapStart; /* 03h Color map origin */\r
724 WORD CMapLength; /* 05h Color map length */\r
725 BYTE CMapDepth; /* 07h Depth of color map entries */\r
726 WORD XOffset; /* 08h X origin of image */\r
727 WORD YOffset; /* 0Ah Y origin of image */\r
728 WORD Width; /* 0Ch Width of image */\r
729 WORD Height; /* 0Eh Height of image */\r
730 BYTE PixelDepth; /* 10h Image pixel size */\r
731 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
732 } __attribute__((packed)) TGAHEAD;\r
733 static unsigned short oldscr[320*240];\r
734 FILE *f; char name[128]; int i;\r
735\r
736 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
737 TGAHEAD.ImageType = 2;\r
738 TGAHEAD.Width = 320;\r
739 TGAHEAD.Height = 240;\r
740 TGAHEAD.PixelDepth = 16;\r
741 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
742\r
743#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
744\r
745 for (i = 0; i < 320*240; i++)\r
746 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r
747 if (i < 320*240)\r
748 {\r
749 for (i = 0; i < 320*240; i++)\r
750 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r
751 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
752 f = fopen(name, "wb");\r
753 if (!f) { printf("!f\n"); exit(1); }\r
754 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
755 fwrite(oldscr, 1, 320*240*2, f);\r
756 fclose(f);\r
757 }\r
758}\r
759#endif\r
760\r
761\r
762void emu_Loop(void)\r
763{\r
764 static int gp2x_old_clock = -1, EmuOpt_old = 0;\r
765 char fpsbuff[24]; // fps count c string\r
766 struct timeval tval; // timing\r
767 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
768 int frames_done, frames_shown, thissec; // actual frames\r
769 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
770 char *notice = 0;\r
771\r
772 printf("entered emu_Loop()\n");\r
773\r
774 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r
775 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r
776 /* craigix: --cas 2 --trc 6 --tras 4 --twr 1 --tmrd 1 --trfc 1 --trp 2 --trcd 2 */\r
777 set_ram_timings(2, 6, 4, 1, 1, 1, 2, 2);\r
778 else\r
779 unset_ram_timings();\r
780 }\r
781\r
782 if (gp2x_old_clock < 0)\r
783 gp2x_old_clock = default_cpu_clock;\r
784 if (currentConfig.CPUclock < 0)\r
785 currentConfig.CPUclock = default_cpu_clock;\r
786 if (gp2x_old_clock != currentConfig.CPUclock) {\r
787 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
788 gp2x_set_cpuclk(currentConfig.CPUclock);\r
789 gp2x_old_clock = currentConfig.CPUclock;\r
790 printf(" done\n");\r
791 }\r
792\r
793 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
794 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
795 gp2x_old_gamma = currentConfig.gamma;\r
796 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
797 }\r
798\r
799 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_PSYNC) {\r
800 if (currentConfig.EmuOpt & EOPT_PSYNC)\r
801 set_lcd_custom_rate(Pico.m.pal);\r
802 else\r
803 unset_lcd_custom_rate();\r
804 }\r
805\r
806 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r
807 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r
808\r
809 EmuOpt_old = currentConfig.EmuOpt;\r
810 fpsbuff[0] = 0;\r
811\r
812 // make sure we are in correct mode\r
813 vidResetMode();\r
814 scaling_update();\r
815 Pico.m.dirtyPal = 1;\r
816 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
817\r
818 // pal/ntsc might have changed, reset related stuff\r
819 target_fps = Pico.m.pal ? 50 : 60;\r
820 target_frametime = 1000000/target_fps;\r
821 reset_timing = 1;\r
822\r
823 emu_startSound();\r
824\r
825 // prepare CD buffer\r
826 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
827\r
828 // calc vsync offset to sync timing code with vsync\r
829 if (currentConfig.EmuOpt&0x2000) {\r
830 gettimeofday(&tval, 0);\r
831 gp2x_video_wait_vsync();\r
832 gettimeofday(&tval, 0);\r
833 vsync_offset = tval.tv_usec;\r
834 while (vsync_offset >= target_frametime)\r
835 vsync_offset -= target_frametime;\r
836 if (!vsync_offset) vsync_offset++;\r
837 printf("vsync_offset: %i\n", vsync_offset);\r
838 } else\r
839 vsync_offset = 0;\r
840\r
841 frames_done = frames_shown = thissec =\r
842 pframes_done = pframes_shown = pthissec = 0;\r
843\r
844 // loop\r
845 while (engineState == PGS_Running)\r
846 {\r
847 int modes;\r
848\r
849 gettimeofday(&tval, 0);\r
850 if (reset_timing) {\r
851 reset_timing = 0;\r
852 pthissec = tval.tv_sec;\r
853 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
854 }\r
855\r
856 // show notice message?\r
857 if (noticeMsgTime.tv_sec)\r
858 {\r
859 static int noticeMsgSum;\r
860 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
861 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
862 clearArea(0);\r
863 notice = 0;\r
864 } else {\r
865 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
866 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
867 notice = noticeMsg;\r
868 }\r
869 }\r
870\r
871 // check for mode changes\r
872 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
873 if (modes != oldmodes)\r
874 {\r
875 int scalex = 320;\r
876 osd_fps_x = OSD_FPS_X;\r
877 if (modes & 4) {\r
878 vidCpyM2 = vidCpyM2_40col;\r
879 } else {\r
880 if (PicoOpt & 0x100) {\r
881 vidCpyM2 = vidCpyM2_32col_nobord;\r
882 scalex = 256;\r
883 osd_fps_x = OSD_FPS_X - 64;\r
884 } else {\r
885 vidCpyM2 = vidCpyM2_32col;\r
886 }\r
887 }\r
888 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
889 gp2x_video_RGB_setscaling(8, scalex, 224);\r
890 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
891 oldmodes = modes;\r
892 clearArea(1);\r
893 }\r
894\r
895 // second changed?\r
896 if (thissec != tval.tv_sec)\r
897 {\r
898#ifdef BENCHMARK\r
899 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
900 if (++bench == 10) {\r
901 bench = 0;\r
902 bench_fps_s = bench_fps;\r
903 bf[bfp++ & 3] = bench_fps;\r
904 bench_fps = 0;\r
905 }\r
906 bench_fps += frames_shown;\r
907 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
908#else\r
909 if (currentConfig.EmuOpt & 2) {\r
910 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
911 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
912 }\r
913#endif\r
914 frames_shown = frames_done = 0;\r
915 thissec = tval.tv_sec;\r
916 }\r
917#ifdef PFRAMES\r
918 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
919#endif\r
920\r
921 if (pthissec != tval.tv_sec)\r
922 {\r
923 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
924 pframes_done = pframes_shown = 0;\r
925 } else {\r
926 // it is quite common for this implementation to leave 1 fame unfinished\r
927 // when second changes, but we don't want buffer to starve.\r
928 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
929 updateKeys();\r
930 SkipFrame(1); pframes_done++;\r
931 }\r
932\r
933 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
934 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
935 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
936 }\r
937 pthissec = tval.tv_sec;\r
938 }\r
939\r
940 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
941 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
942 {\r
943 for(i = 0; i < currentConfig.Frameskip; i++) {\r
944 updateKeys();\r
945 SkipFrame(1); pframes_done++; frames_done++;\r
946 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
947 gettimeofday(&tval, 0);\r
948 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
949 if (tval.tv_usec < lim_time) { // we are too fast\r
950 simpleWait(pthissec, lim_time);\r
951 }\r
952 }\r
953 lim_time += target_frametime;\r
954 }\r
955 }\r
956 else if (tval.tv_usec > lim_time) // auto frameskip\r
957 {\r
958 // no time left for this frame - skip\r
959 if (tval.tv_usec - lim_time >= 300000) {\r
960 /* something caused a slowdown for us (disk access? cache flush?)\r
961 * try to recover by resetting timing... */\r
962 reset_timing = 1;\r
963 continue;\r
964 }\r
965 updateKeys();\r
966 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
967 continue;\r
968 }\r
969\r
970 updateKeys();\r
971 PicoFrame();\r
972\r
973 // check time\r
974 gettimeofday(&tval, 0);\r
975 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
976\r
977 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
978 reset_timing = 1;\r
979 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
980 {\r
981 // sleep or vsync if we are still too fast\r
982 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
983 if (!reset_timing && tval.tv_usec < lim_time)\r
984 {\r
985 // we are too fast\r
986 if (vsync_offset) {\r
987 if (lim_time - tval.tv_usec > target_frametime/2)\r
988 simpleWait(pthissec, lim_time - target_frametime/4);\r
989 gp2x_video_wait_vsync();\r
990 } else {\r
991 simpleWait(pthissec, lim_time);\r
992 }\r
993 }\r
994 }\r
995\r
996 blit(fpsbuff, notice);\r
997\r
998 pframes_done++; pframes_shown++;\r
999 frames_done++; frames_shown++;\r
1000 }\r
1001\r
1002 emu_changeFastForward(0);\r
1003\r
1004 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
1005\r
1006 // save SRAM\r
1007 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
1008 emu_state_cb("Writing SRAM/BRAM..");\r
1009 emu_SaveLoadGame(0, 1);\r
1010 SRam.changed = 0;\r
1011 }\r
1012\r
1013 // if in 8bit mode, generate 16bit image for menu background\r
1014 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
1015 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
1016}\r
1017\r
1018\r
1019void emu_ResetGame(void)\r
1020{\r
1021 PicoReset();\r
1022 reset_timing = 1;\r
1023}\r
1024\r
1025const char *plat_get_credits(void)\r
1026{\r
1027 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r
1028 "Credits:\n"\r
1029 "fDave: Cyclone 68000 core,\n"\r
1030 " base code of PicoDrive\n"\r
1031 "Reesy & FluBBa: DrZ80 core\n"\r
1032 "MAME devs: YM2612 and SN76496 cores\n"\r
1033 "rlyeh and others: minimal SDK\n"\r
1034 "Squidge: mmuhack\n"\r
1035 "Dzz: ARM940 sample\n"\r
1036 "GnoStiC / Puck2099: USB joy code\n"\r
1037 "craigix: GP2X hardware\n"\r
1038 "ketchupgun: skin design\n"\r
1039 "\n"\r
1040 "special thanks (for docs, ideas):\n"\r
1041 " Charles MacDonald, Haze,\n"\r
1042 " Stephane Dallongeville,\n"\r
1043 " Lordus, Exophase, Rokas,\n"\r
1044 " Nemesis, Tasco Deluxe";\r
1045}\r
PicoDrive's frontend in a lib