bcc9eda0 |
1 | // (c) Copyright 2006-2009 notaz, All rights reserved.\r |
ea8c405f |
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 |
b24e0f6c |
8 | #include <stdarg.h>\r |
ea8c405f |
9 | #ifndef NO_SYNC\r |
10 | #include <unistd.h>\r |
11 | #endif\r |
12 | \r |
13 | #include "emu.h"\r |
14 | #include "menu.h"\r |
15 | #include "fonts.h"\r |
16 | #include "lprintf.h"\r |
58c86d00 |
17 | #include "config.h"\r |
713c9224 |
18 | #include "plat.h"\r |
d34a42f9 |
19 | #include "input.h"\r |
f2cf8472 |
20 | #include "posix.h"\r |
ea8c405f |
21 | \r |
efcba75f |
22 | #include <pico/pico_int.h>\r |
23 | #include <pico/patch.h>\r |
24 | #include <pico/cd/cue.h>\r |
ea8c405f |
25 | \r |
ea8c405f |
26 | \r |
54646a39 |
27 | #define STATUS_MSG_TIMEOUT 2000\r |
28 | \r |
e2de9939 |
29 | void *g_screen_ptr;\r |
30 | \r |
31 | #if !SCREEN_SIZE_FIXED\r |
32 | int g_screen_width = SCREEN_WIDTH;\r |
33 | int g_screen_height = SCREEN_HEIGHT;\r |
34 | #endif\r |
35 | \r |
c46ffd31 |
36 | char *PicoConfigFile = "config.cfg";\r |
58c86d00 |
37 | currentConfig_t currentConfig, defaultConfig;\r |
ea8c405f |
38 | int state_slot = 0;\r |
39 | int config_slot = 0, config_slot_current = 0;\r |
f2cf8472 |
40 | int pico_pen_x = 320/2, pico_pen_y = 240/2;\r |
c060a9ab |
41 | int pico_inp_mode = 0;\r |
713c9224 |
42 | int engineState = PGS_Menu;\r |
43 | \r |
44 | /* TODO: len checking */\r |
45 | char rom_fname_reload[512] = { 0, };\r |
46 | char rom_fname_loaded[512] = { 0, };\r |
47 | int rom_loaded = 0;\r |
f2cf8472 |
48 | int reset_timing = 0;\r |
b24e0f6c |
49 | static unsigned int notice_msg_time; /* when started showing */\r |
50 | static char noticeMsg[40];\r |
ea8c405f |
51 | \r |
52 | unsigned char *movie_data = NULL;\r |
53 | static int movie_size = 0;\r |
54 | \r |
ea8c405f |
55 | \r |
ee2a3bdf |
56 | /* don't use tolower() for easy old glibc binary compatibility */\r |
f8af9634 |
57 | static void strlwr_(char *string)\r |
ea8c405f |
58 | {\r |
f8af9634 |
59 | char *p;\r |
60 | for (p = string; *p; p++)\r |
ee2a3bdf |
61 | if ('A' <= *p && *p <= 'Z')\r |
62 | *p += 'a' - 'A';\r |
ea8c405f |
63 | }\r |
64 | \r |
ca482e5d |
65 | static int try_rfn_cut(char *fname)\r |
ea8c405f |
66 | {\r |
67 | FILE *tmp;\r |
68 | char *p;\r |
69 | \r |
ca482e5d |
70 | p = fname + strlen(fname) - 1;\r |
71 | for (; p > fname; p--)\r |
ea8c405f |
72 | if (*p == '.') break;\r |
73 | *p = 0;\r |
74 | \r |
ca482e5d |
75 | if((tmp = fopen(fname, "rb"))) {\r |
ea8c405f |
76 | fclose(tmp);\r |
77 | return 1;\r |
78 | }\r |
79 | return 0;\r |
80 | }\r |
81 | \r |
35e3031a |
82 | static void get_ext(const char *file, char *ext)\r |
ea8c405f |
83 | {\r |
35e3031a |
84 | const char *p;\r |
ea8c405f |
85 | \r |
86 | p = file + strlen(file) - 4;\r |
87 | if (p < file) p = file;\r |
88 | strncpy(ext, p, 4);\r |
89 | ext[4] = 0;\r |
90 | strlwr_(ext);\r |
91 | }\r |
92 | \r |
b24e0f6c |
93 | void emu_status_msg(const char *format, ...)\r |
94 | {\r |
95 | va_list vl;\r |
54646a39 |
96 | int ret;\r |
b24e0f6c |
97 | \r |
98 | va_start(vl, format);\r |
54646a39 |
99 | ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);\r |
b24e0f6c |
100 | va_end(vl);\r |
101 | \r |
54646a39 |
102 | /* be sure old text gets overwritten */\r |
103 | for (; ret < 28; ret++)\r |
104 | noticeMsg[ret] = ' ';\r |
105 | noticeMsg[ret] = 0;\r |
106 | \r |
b24e0f6c |
107 | notice_msg_time = plat_get_ticks_ms();\r |
108 | }\r |
109 | \r |
54646a39 |
110 | static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r |
111 | static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r |
112 | static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r |
ea8c405f |
113 | \r |
a47dd663 |
114 | static int find_bios(int region, char **bios_file)\r |
ea8c405f |
115 | {\r |
116 | static char bios_path[1024];\r |
117 | int i, count;\r |
54646a39 |
118 | const char * const *files;\r |
ea8c405f |
119 | FILE *f = NULL;\r |
120 | \r |
121 | if (region == 4) { // US\r |
122 | files = biosfiles_us;\r |
123 | count = sizeof(biosfiles_us) / sizeof(char *);\r |
124 | } else if (region == 8) { // EU\r |
125 | files = biosfiles_eu;\r |
126 | count = sizeof(biosfiles_eu) / sizeof(char *);\r |
127 | } else if (region == 1 || region == 2) {\r |
128 | files = biosfiles_jp;\r |
129 | count = sizeof(biosfiles_jp) / sizeof(char *);\r |
130 | } else {\r |
131 | return 0;\r |
132 | }\r |
133 | \r |
134 | for (i = 0; i < count; i++)\r |
135 | {\r |
27701801 |
136 | emu_make_path(bios_path, files[i], sizeof(bios_path) - 4);\r |
ea8c405f |
137 | strcat(bios_path, ".bin");\r |
138 | f = fopen(bios_path, "rb");\r |
139 | if (f) break;\r |
140 | \r |
141 | bios_path[strlen(bios_path) - 4] = 0;\r |
142 | strcat(bios_path, ".zip");\r |
143 | f = fopen(bios_path, "rb");\r |
144 | if (f) break;\r |
145 | }\r |
146 | \r |
147 | if (f) {\r |
148 | lprintf("using bios: %s\n", bios_path);\r |
149 | fclose(f);\r |
150 | if (bios_file) *bios_file = bios_path;\r |
151 | return 1;\r |
152 | } else {\r |
c6c6c9cd |
153 | sprintf(bios_path, "no %s BIOS files found, read docs",\r |
ea8c405f |
154 | region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r |
c6c6c9cd |
155 | me_update_msg(bios_path);\r |
ea8c405f |
156 | return 0;\r |
157 | }\r |
158 | }\r |
159 | \r |
c6196c0f |
160 | /* check if the name begins with BIOS name */\r |
1ca2ea4f |
161 | /*\r |
c6196c0f |
162 | static int emu_isBios(const char *name)\r |
163 | {\r |
164 | int i;\r |
165 | for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r |
166 | if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r |
167 | for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r |
168 | if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r |
169 | for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r |
170 | if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r |
171 | return 0;\r |
172 | }\r |
1ca2ea4f |
173 | */\r |
c6196c0f |
174 | \r |
1ca2ea4f |
175 | static unsigned char id_header[0x100];\r |
58c86d00 |
176 | \r |
3e49ffd0 |
177 | /* checks if fname points to valid MegaCD image */\r |
35e3031a |
178 | static int emu_cd_check(int *pregion, const char *fname_in)\r |
ea8c405f |
179 | {\r |
35e3031a |
180 | const char *fname = fname_in;\r |
ea8c405f |
181 | unsigned char buf[32];\r |
182 | pm_file *cd_f;\r |
9037e45d |
183 | int region = 4; // 1: Japan, 4: US, 8: Europe\r |
35e3031a |
184 | char ext[5];\r |
9037e45d |
185 | cue_track_type type = CT_UNKNOWN;\r |
186 | cue_data_t *cue_data = NULL;\r |
b923ecbe |
187 | \r |
ca482e5d |
188 | get_ext(fname_in, ext);\r |
9037e45d |
189 | if (strcasecmp(ext, ".cue") == 0) {\r |
ca482e5d |
190 | cue_data = cue_parse(fname_in);\r |
9037e45d |
191 | if (cue_data != NULL) {\r |
192 | fname = cue_data->tracks[1].fname;\r |
193 | type = cue_data->tracks[1].type;\r |
194 | }\r |
f9f40f10 |
195 | else\r |
196 | return -1;\r |
9037e45d |
197 | }\r |
198 | \r |
199 | cd_f = pm_open(fname);\r |
200 | if (cue_data != NULL)\r |
201 | cue_destroy(cue_data);\r |
ea8c405f |
202 | \r |
f9f40f10 |
203 | if (cd_f == NULL) return 0; // let the upper level handle this\r |
ea8c405f |
204 | \r |
205 | if (pm_read(buf, 32, cd_f) != 32) {\r |
206 | pm_close(cd_f);\r |
f9f40f10 |
207 | return -1;\r |
ea8c405f |
208 | }\r |
209 | \r |
9037e45d |
210 | if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {\r |
211 | if (type && type != CT_ISO)\r |
212 | elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r |
213 | type = CT_ISO; // Sega CD (ISO)\r |
214 | }\r |
215 | if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {\r |
216 | if (type && type != CT_BIN)\r |
217 | elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r |
218 | type = CT_BIN; // Sega CD (BIN)\r |
219 | }\r |
220 | \r |
221 | if (type == CT_UNKNOWN) {\r |
ea8c405f |
222 | pm_close(cd_f);\r |
223 | return 0;\r |
224 | }\r |
225 | \r |
9037e45d |
226 | pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);\r |
1ca2ea4f |
227 | pm_read(id_header, sizeof(id_header), cd_f);\r |
58c86d00 |
228 | \r |
ea8c405f |
229 | /* it seems we have a CD image here. Try to detect region now.. */\r |
9037e45d |
230 | pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r |
ea8c405f |
231 | pm_read(buf, 1, cd_f);\r |
232 | pm_close(cd_f);\r |
233 | \r |
234 | if (buf[0] == 0x64) region = 8; // EU\r |
235 | if (buf[0] == 0xa1) region = 1; // JAP\r |
236 | \r |
237 | lprintf("detected %s Sega/Mega CD image with %s region\n",\r |
9037e45d |
238 | type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r |
ea8c405f |
239 | \r |
240 | if (pregion != NULL) *pregion = region;\r |
241 | \r |
242 | return type;\r |
243 | }\r |
244 | \r |
3e49ffd0 |
245 | static int detect_media(const char *fname)\r |
246 | {\r |
247 | static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 };\r |
248 | pm_file *pmf;\r |
249 | char buff[32];\r |
250 | char ext[5];\r |
251 | int i;\r |
252 | \r |
253 | get_ext(fname, ext);\r |
254 | \r |
255 | // detect wrong extensions\r |
256 | if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) // s.gz ~ .mds.gz\r |
257 | return PM_BAD;\r |
258 | \r |
259 | /* don't believe in extensions, except .cue */\r |
260 | if (strcasecmp(ext, ".cue") == 0)\r |
261 | return PM_CD;\r |
262 | \r |
263 | pmf = pm_open(fname);\r |
264 | if (pmf == NULL)\r |
265 | return PM_BAD;\r |
266 | \r |
267 | if (pm_read(buff, 32, pmf) != 32) {\r |
268 | pm_close(pmf);\r |
269 | return PM_BAD;\r |
270 | }\r |
271 | \r |
272 | if (strncasecmp("SEGADISCSYSTEM", buff + 0x00, 14) == 0 ||\r |
273 | strncasecmp("SEGADISCSYSTEM", buff + 0x10, 14) == 0) {\r |
274 | pm_close(pmf);\r |
275 | return PM_CD;\r |
276 | }\r |
277 | \r |
278 | for (i = 0; i < array_size(sms_offsets); i++) {\r |
279 | if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i])\r |
280 | goto not_mark3; /* actually it could be but can't be detected */\r |
281 | \r |
282 | if (pm_read(buff, 16, pmf) != 16)\r |
283 | goto not_mark3;\r |
284 | \r |
285 | if (strncasecmp("TMR SEGA", buff, 8) == 0) {\r |
286 | pm_close(pmf);\r |
287 | return PM_MARK3;\r |
288 | }\r |
289 | }\r |
290 | \r |
291 | not_mark3:\r |
292 | pm_close(pmf);\r |
293 | /* the main emu function is to emulate MD, so assume MD */\r |
294 | return PM_MD_CART;\r |
295 | }\r |
296 | \r |
7a87643e |
297 | static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r |
58c86d00 |
298 | {\r |
299 | char *p = dest;\r |
300 | int i;\r |
301 | \r |
302 | if (swab) swab = 1;\r |
303 | \r |
304 | for (i = len - 1; i >= 0; i--)\r |
305 | {\r |
306 | if (src[i^swab] != ' ') break;\r |
307 | }\r |
308 | len = i + 1;\r |
309 | \r |
310 | for (i = 0; i < len; i++)\r |
311 | {\r |
312 | unsigned char s = src[i^swab];\r |
313 | if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r |
314 | s != '[' && s != ']' && s != '\\')\r |
315 | {\r |
316 | *p++ = s;\r |
317 | }\r |
318 | else\r |
319 | {\r |
320 | sprintf(p, "\\%02x", s);\r |
321 | p += 3;\r |
322 | }\r |
323 | }\r |
324 | \r |
325 | return p - dest;\r |
326 | }\r |
327 | \r |
a47dd663 |
328 | static char *emu_make_rom_id(void)\r |
58c86d00 |
329 | {\r |
ca482e5d |
330 | static char id_string[3+0xe*3+0x3*3+0x30*3+3];\r |
bdec53c9 |
331 | int pos, swab = 1;\r |
58c86d00 |
332 | \r |
602133e1 |
333 | if (PicoAHW & PAHW_MCD) {\r |
bdec53c9 |
334 | strcpy(id_string, "CD|");\r |
335 | swab = 0;\r |
336 | }\r |
1ca2ea4f |
337 | else strcpy(id_string, "MD|");\r |
58c86d00 |
338 | pos = 3;\r |
339 | \r |
bdec53c9 |
340 | pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r |
58c86d00 |
341 | id_string[pos] = '|'; pos++;\r |
bdec53c9 |
342 | pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r |
58c86d00 |
343 | id_string[pos] = '|'; pos++;\r |
bdec53c9 |
344 | pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r |
58c86d00 |
345 | id_string[pos] = 0;\r |
346 | \r |
58c86d00 |
347 | return id_string;\r |
348 | }\r |
349 | \r |
ca482e5d |
350 | // buffer must be at least 150 byte long\r |
a47dd663 |
351 | void emu_get_game_name(char *str150)\r |
ca482e5d |
352 | {\r |
353 | int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;\r |
354 | char *s, *d;\r |
355 | \r |
356 | ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name\r |
357 | \r |
358 | for (s = d = str150 + 1; s < str150+ret; s++)\r |
359 | {\r |
360 | if (*s == 0) break;\r |
361 | if (*s != ' ' || d[-1] != ' ')\r |
362 | *d++ = *s;\r |
363 | }\r |
364 | *d = 0;\r |
365 | }\r |
366 | \r |
a47dd663 |
367 | static void shutdown_MCD(void)\r |
368 | {\r |
369 | if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)\r |
370 | Stop_CD();\r |
371 | PicoAHW &= ~PAHW_MCD;\r |
372 | }\r |
373 | \r |
ca482e5d |
374 | // note: this function might mangle rom_fname\r |
3e49ffd0 |
375 | // XXX: portions of this code should move to pico/\r |
a47dd663 |
376 | int emu_reload_rom(char *rom_fname)\r |
ea8c405f |
377 | {\r |
378 | unsigned int rom_size = 0;\r |
ca482e5d |
379 | char *used_rom_name = rom_fname;\r |
eacee137 |
380 | unsigned char *rom_data = NULL;\r |
ea8c405f |
381 | char ext[5];\r |
f9f40f10 |
382 | pm_file *rom = NULL;\r |
3e49ffd0 |
383 | int cd_state = CIT_NOT_CD;\r |
384 | int ret, media_type, cd_region;\r |
385 | int cfg_loaded = 0, bad_rom = 0;\r |
ea8c405f |
386 | \r |
ca482e5d |
387 | lprintf("emu_ReloadRom(%s)\n", rom_fname);\r |
ea8c405f |
388 | \r |
ca482e5d |
389 | get_ext(rom_fname, ext);\r |
ea8c405f |
390 | \r |
ea8c405f |
391 | // check for movie file\r |
eacee137 |
392 | if (movie_data) {\r |
ea8c405f |
393 | free(movie_data);\r |
394 | movie_data = 0;\r |
395 | }\r |
2d2247c2 |
396 | if (!strcmp(ext, ".gmv"))\r |
397 | {\r |
ea8c405f |
398 | // check for both gmv and rom\r |
399 | int dummy;\r |
ca482e5d |
400 | FILE *movie_file = fopen(rom_fname, "rb");\r |
ea8c405f |
401 | if(!movie_file) {\r |
c6c6c9cd |
402 | me_update_msg("Failed to open movie.");\r |
ea8c405f |
403 | return 0;\r |
404 | }\r |
405 | fseek(movie_file, 0, SEEK_END);\r |
406 | movie_size = ftell(movie_file);\r |
407 | fseek(movie_file, 0, SEEK_SET);\r |
408 | if(movie_size < 64+3) {\r |
c6c6c9cd |
409 | me_update_msg("Invalid GMV file.");\r |
ea8c405f |
410 | fclose(movie_file);\r |
411 | return 0;\r |
412 | }\r |
413 | movie_data = malloc(movie_size);\r |
414 | if(movie_data == NULL) {\r |
c6c6c9cd |
415 | me_update_msg("low memory.");\r |
ea8c405f |
416 | fclose(movie_file);\r |
417 | return 0;\r |
418 | }\r |
419 | fread(movie_data, 1, movie_size, movie_file);\r |
420 | fclose(movie_file);\r |
421 | if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r |
c6c6c9cd |
422 | me_update_msg("Invalid GMV file.");\r |
ea8c405f |
423 | return 0;\r |
424 | }\r |
ca482e5d |
425 | dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r |
ea8c405f |
426 | if (!dummy) {\r |
c6c6c9cd |
427 | me_update_msg("Could't find a ROM for movie.");\r |
ea8c405f |
428 | return 0;\r |
429 | }\r |
ca482e5d |
430 | get_ext(rom_fname, ext);\r |
f8af9634 |
431 | lprintf("gmv loaded for %s\n", rom_fname);\r |
ea8c405f |
432 | }\r |
ca482e5d |
433 | else if (!strcmp(ext, ".pat"))\r |
434 | {\r |
ea8c405f |
435 | int dummy;\r |
ca482e5d |
436 | PicoPatchLoad(rom_fname);\r |
437 | dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r |
ea8c405f |
438 | if (!dummy) {\r |
c6c6c9cd |
439 | me_update_msg("Could't find a ROM to patch.");\r |
ea8c405f |
440 | return 0;\r |
441 | }\r |
ca482e5d |
442 | get_ext(rom_fname, ext);\r |
ea8c405f |
443 | }\r |
444 | \r |
3e49ffd0 |
445 | media_type = detect_media(rom_fname);\r |
446 | if (media_type == PM_BAD) {\r |
447 | me_update_msg("Not a ROM/CD img selected.");\r |
448 | return 0;\r |
449 | }\r |
450 | \r |
a47dd663 |
451 | shutdown_MCD();\r |
3e49ffd0 |
452 | PicoPatchUnload();\r |
ea8c405f |
453 | \r |
3e49ffd0 |
454 | if (media_type == PM_CD)\r |
ea8c405f |
455 | {\r |
3e49ffd0 |
456 | // check for MegaCD image\r |
457 | cd_state = emu_cd_check(&cd_region, rom_fname);\r |
458 | if (cd_state >= 0 && cd_state != CIT_NOT_CD)\r |
459 | {\r |
460 | // valid CD image, check for BIOS..\r |
ea8c405f |
461 | \r |
3e49ffd0 |
462 | // we need to have config loaded at this point\r |
463 | ret = emu_read_config(1, 0);\r |
464 | if (!ret) emu_read_config(0, 0);\r |
465 | cfg_loaded = 1;\r |
ea8c405f |
466 | \r |
3e49ffd0 |
467 | if (PicoRegionOverride) {\r |
468 | cd_region = PicoRegionOverride;\r |
469 | lprintf("override region to %s\n", cd_region != 4 ?\r |
470 | (cd_region == 8 ? "EU" : "JAP") : "USA");\r |
471 | }\r |
472 | if (!find_bios(cd_region, &used_rom_name))\r |
473 | return 0;\r |
474 | \r |
475 | get_ext(used_rom_name, ext);\r |
476 | PicoAHW |= PAHW_MCD;\r |
ea8c405f |
477 | }\r |
3e49ffd0 |
478 | else {\r |
479 | me_update_msg("Invalid CD image");\r |
ea8c405f |
480 | return 0;\r |
481 | }\r |
ea8c405f |
482 | }\r |
3e49ffd0 |
483 | else if (media_type == PM_MARK3) {\r |
484 | lprintf("detected SMS ROM\n");\r |
485 | PicoAHW = PAHW_SMS;\r |
ea8c405f |
486 | }\r |
487 | \r |
488 | rom = pm_open(used_rom_name);\r |
3e49ffd0 |
489 | if (rom == NULL) {\r |
490 | me_update_msg("Failed to open ROM");\r |
491 | return 0;\r |
ea8c405f |
492 | }\r |
493 | \r |
4b167c12 |
494 | menu_romload_prepare(used_rom_name); // also CD load\r |
ea8c405f |
495 | \r |
eacee137 |
496 | PicoCartUnload();\r |
497 | rom_loaded = 0;\r |
ea8c405f |
498 | \r |
3e49ffd0 |
499 | ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);\r |
500 | pm_close(rom);\r |
501 | if (ret != 0) {\r |
c6c6c9cd |
502 | if (ret == 2) me_update_msg("Out of memory");\r |
503 | else if (ret == 3) me_update_msg("Read failed");\r |
504 | else me_update_msg("PicoCartLoad() failed.");\r |
3e49ffd0 |
505 | goto fail;\r |
506 | }\r |
507 | \r |
508 | // detect wrong files\r |
509 | if (strncmp((char *)rom_data, "Pico", 4) == 0)\r |
510 | bad_rom = 1;\r |
511 | else if (!(PicoAHW & PAHW_SMS)) {\r |
512 | unsigned short *d = (unsigned short *)(rom_data + 4);\r |
513 | if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {\r |
514 | lprintf("bad reset vector\n");\r |
515 | bad_rom = 1;\r |
516 | }\r |
ea8c405f |
517 | }\r |
ea8c405f |
518 | \r |
3e49ffd0 |
519 | if (bad_rom) {\r |
520 | me_update_msg("Bad ROM detected.");\r |
521 | goto fail;\r |
ea8c405f |
522 | }\r |
523 | \r |
524 | // load config for this ROM (do this before insert to get correct region)\r |
602133e1 |
525 | if (!(PicoAHW & PAHW_MCD))\r |
1ca2ea4f |
526 | memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r |
ea8c405f |
527 | if (!cfg_loaded) {\r |
490eb480 |
528 | ret = emu_read_config(1, 0);\r |
529 | if (!ret) emu_read_config(0, 0);\r |
ea8c405f |
530 | }\r |
531 | \r |
eacee137 |
532 | if (PicoCartInsert(rom_data, rom_size)) {\r |
c6c6c9cd |
533 | me_update_msg("Failed to load ROM.");\r |
3e49ffd0 |
534 | goto fail;\r |
ea8c405f |
535 | }\r |
536 | \r |
ea8c405f |
537 | // insert CD if it was detected\r |
b923ecbe |
538 | if (cd_state != CIT_NOT_CD) {\r |
ca482e5d |
539 | ret = Insert_CD(rom_fname, cd_state);\r |
ea8c405f |
540 | if (ret != 0) {\r |
3e49ffd0 |
541 | PicoCartUnload();\r |
542 | rom_data = NULL; // freed by unload\r |
c6c6c9cd |
543 | me_update_msg("Insert_CD() failed, invalid CD image?");\r |
3e49ffd0 |
544 | goto fail;\r |
ea8c405f |
545 | }\r |
546 | }\r |
547 | \r |
4b167c12 |
548 | menu_romload_end();\r |
549 | \r |
ea8c405f |
550 | if (PicoPatches) {\r |
551 | PicoPatchPrepare();\r |
552 | PicoPatchApply();\r |
553 | }\r |
554 | \r |
555 | // additional movie stuff\r |
f9f40f10 |
556 | if (movie_data)\r |
557 | {\r |
558 | if (movie_data[0x14] == '6')\r |
602133e1 |
559 | PicoOpt |= POPT_6BTN_PAD; // 6 button pad\r |
560 | else PicoOpt &= ~POPT_6BTN_PAD;\r |
2aa27095 |
561 | PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r |
f9f40f10 |
562 | if (movie_data[0xF] >= 'A') {\r |
563 | if (movie_data[0x16] & 0x80) {\r |
ea8c405f |
564 | PicoRegionOverride = 8;\r |
565 | } else {\r |
566 | PicoRegionOverride = 4;\r |
567 | }\r |
1cb1584b |
568 | PicoReset();\r |
ea8c405f |
569 | // TODO: bits 6 & 5\r |
570 | }\r |
571 | movie_data[0x18+30] = 0;\r |
b24e0f6c |
572 | emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);\r |
ea8c405f |
573 | }\r |
574 | else\r |
575 | {\r |
3e49ffd0 |
576 | const char *sys_name, *tv_standard;\r |
577 | int fps;\r |
578 | \r |
579 | if (PicoAHW & PAHW_SMS) {\r |
580 | sys_name = "Master System";\r |
581 | } else {\r |
582 | sys_name = "MegaDrive";\r |
583 | if ((Pico.m.hardware&0xc0) == 0x80)\r |
584 | sys_name = "Genesis";\r |
585 | }\r |
586 | tv_standard = Pico.m.pal ? "PAL" : "NTSC";\r |
587 | fps = Pico.m.pal ? 50 : 60;\r |
588 | \r |
589 | emu_status_msg("%s %s / %dFPS", tv_standard, sys_name, fps);\r |
590 | \r |
602133e1 |
591 | PicoOpt &= ~POPT_DIS_VDP_FIFO;\r |
ea8c405f |
592 | }\r |
ea8c405f |
593 | \r |
bcc9eda0 |
594 | strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);\r |
595 | rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r |
596 | rom_loaded = 1;\r |
597 | \r |
ea8c405f |
598 | // load SRAM for this ROM\r |
a47dd663 |
599 | if (currentConfig.EmuOpt & EOPT_EN_SRAM)\r |
600 | emu_save_load_game(1, 1);\r |
ea8c405f |
601 | \r |
602 | return 1;\r |
f9f40f10 |
603 | \r |
f9f40f10 |
604 | fail:\r |
3e49ffd0 |
605 | if (rom_data)\r |
606 | free(rom_data);\r |
607 | menu_romload_end();\r |
f9f40f10 |
608 | return 0;\r |
ea8c405f |
609 | }\r |
610 | \r |
35e3031a |
611 | int emu_swap_cd(const char *fname)\r |
612 | {\r |
613 | cd_img_type cd_type;\r |
614 | int ret = -1;\r |
615 | \r |
616 | cd_type = emu_cd_check(NULL, fname);\r |
617 | if (cd_type != CIT_NOT_CD)\r |
618 | ret = Insert_CD(fname, cd_type);\r |
619 | if (ret != 0) {\r |
620 | me_update_msg("Load failed, invalid CD image?");\r |
621 | return 0;\r |
622 | }\r |
623 | \r |
624 | strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);\r |
625 | rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r |
626 | return 1;\r |
627 | }\r |
628 | \r |
ea8c405f |
629 | static void romfname_ext(char *dst, const char *prefix, const char *ext)\r |
630 | {\r |
631 | char *p;\r |
632 | int prefix_len = 0;\r |
633 | \r |
634 | // make save filename\r |
713c9224 |
635 | p = rom_fname_loaded + strlen(rom_fname_loaded) - 1;\r |
636 | for (; p >= rom_fname_loaded && *p != PATH_SEP_C; p--); p++;\r |
ea8c405f |
637 | *dst = 0;\r |
638 | if (prefix) {\r |
f2cf8472 |
639 | int len = plat_get_root_dir(dst, 512);\r |
ca482e5d |
640 | strcpy(dst + len, prefix);\r |
641 | prefix_len = len + strlen(prefix);\r |
ea8c405f |
642 | }\r |
ca482e5d |
643 | #ifdef UIQ3\r |
713c9224 |
644 | else p = rom_fname_loaded; // backward compatibility\r |
ca482e5d |
645 | #endif\r |
ea8c405f |
646 | strncpy(dst + prefix_len, p, 511-prefix_len);\r |
647 | dst[511-8] = 0;\r |
648 | if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r |
649 | if (ext) strcat(dst, ext);\r |
650 | }\r |
651 | \r |
27701801 |
652 | void emu_make_path(char *buff, const char *end, int size)\r |
08fe8094 |
653 | {\r |
27701801 |
654 | int pos, end_len;\r |
655 | \r |
656 | end_len = strlen(end);\r |
657 | pos = plat_get_root_dir(buff, size);\r |
658 | strncpy(buff + pos, end, size - pos);\r |
659 | buff[size - 1] = 0;\r |
660 | if (pos + end_len > size - 1)\r |
661 | lprintf("Warning: path truncated: %s\n", buff);\r |
662 | }\r |
663 | \r |
664 | static void make_config_cfg(char *cfg_buff_512)\r |
665 | {\r |
666 | emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);\r |
08fe8094 |
667 | if (config_slot != 0)\r |
668 | {\r |
27701801 |
669 | char *p = strrchr(cfg_buff_512, '.');\r |
670 | if (p == NULL)\r |
671 | p = cfg_buff_512 + strlen(cfg_buff_512);\r |
08fe8094 |
672 | sprintf(p, ".%i.cfg", config_slot);\r |
673 | }\r |
27701801 |
674 | cfg_buff_512[511] = 0;\r |
08fe8094 |
675 | }\r |
676 | \r |
d90f5bd7 |
677 | void emu_set_defconfig(void)\r |
ca482e5d |
678 | {\r |
a47dd663 |
679 | memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));\r |
ca482e5d |
680 | PicoOpt = currentConfig.s_PicoOpt;\r |
681 | PsndRate = currentConfig.s_PsndRate;\r |
682 | PicoRegionOverride = currentConfig.s_PicoRegion;\r |
683 | PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r |
684 | PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r |
685 | }\r |
686 | \r |
a47dd663 |
687 | int emu_read_config(int game, int no_defaults)\r |
ea8c405f |
688 | {\r |
58c86d00 |
689 | char cfg[512];\r |
58c86d00 |
690 | int ret;\r |
ea8c405f |
691 | \r |
490eb480 |
692 | if (!no_defaults)\r |
693 | emu_set_defconfig();\r |
694 | \r |
ea8c405f |
695 | if (!game)\r |
696 | {\r |
08fe8094 |
697 | make_config_cfg(cfg);\r |
58c86d00 |
698 | ret = config_readsect(cfg, NULL);\r |
ea8c405f |
699 | }\r |
58c86d00 |
700 | else\r |
701 | {\r |
a47dd663 |
702 | char *sect = emu_make_rom_id();\r |
ea8c405f |
703 | \r |
58c86d00 |
704 | // try new .cfg way\r |
705 | if (config_slot != 0)\r |
706 | sprintf(cfg, "game.%i.cfg", config_slot);\r |
707 | else strcpy(cfg, "game.cfg");\r |
1ca2ea4f |
708 | \r |
709 | ret = -1;\r |
08fe8094 |
710 | if (config_havesect(cfg, sect))\r |
711 | {\r |
712 | // read user's config\r |
7b802576 |
713 | int vol = currentConfig.volume;\r |
d90f5bd7 |
714 | emu_set_defconfig();\r |
1ca2ea4f |
715 | ret = config_readsect(cfg, sect);\r |
7b802576 |
716 | currentConfig.volume = vol; // make vol global (bah)\r |
1ca2ea4f |
717 | }\r |
a39b7867 |
718 | else\r |
08fe8094 |
719 | {\r |
720 | // read global config, and apply game_def.cfg on top\r |
721 | make_config_cfg(cfg);\r |
722 | config_readsect(cfg, NULL);\r |
d8afe7b8 |
723 | emu_make_path(cfg, "game_def.cfg", sizeof(cfg));\r |
724 | ret = config_readsect(cfg, sect);\r |
08fe8094 |
725 | }\r |
58c86d00 |
726 | \r |
ca482e5d |
727 | if (ret == 0)\r |
58c86d00 |
728 | {\r |
1ca2ea4f |
729 | lprintf("loaded cfg from sect \"%s\"\n", sect);\r |
58c86d00 |
730 | }\r |
ea8c405f |
731 | }\r |
58c86d00 |
732 | \r |
ee2a3bdf |
733 | plat_validate_config();\r |
734 | \r |
ea8c405f |
735 | // some sanity checks\r |
2445b7cb |
736 | #ifdef PSP\r |
ee2a3bdf |
737 | /* TODO: mv to plat_validate_config() */\r |
738 | if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r |
2445b7cb |
739 | if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r |
6fc57144 |
740 | if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r |
2445b7cb |
741 | #endif\r |
ee2a3bdf |
742 | if (currentConfig.volume < 0 || currentConfig.volume > 99)\r |
743 | currentConfig.volume = 50;\r |
744 | \r |
745 | if (ret == 0)\r |
746 | config_slot_current = config_slot;\r |
991473ad |
747 | \r |
58c86d00 |
748 | return (ret == 0);\r |
ea8c405f |
749 | }\r |
750 | \r |
751 | \r |
a47dd663 |
752 | int emu_write_config(int is_game)\r |
ea8c405f |
753 | {\r |
58c86d00 |
754 | char cfg[512], *game_sect = NULL;\r |
755 | int ret, write_lrom = 0;\r |
ea8c405f |
756 | \r |
58c86d00 |
757 | if (!is_game)\r |
ea8c405f |
758 | {\r |
ca482e5d |
759 | make_config_cfg(cfg);\r |
58c86d00 |
760 | write_lrom = 1;\r |
ea8c405f |
761 | } else {\r |
762 | if (config_slot != 0)\r |
58c86d00 |
763 | sprintf(cfg, "game.%i.cfg", config_slot);\r |
764 | else strcpy(cfg, "game.cfg");\r |
a47dd663 |
765 | game_sect = emu_make_rom_id();\r |
766 | lprintf("emu_write_config: sect \"%s\"\n", game_sect);\r |
ea8c405f |
767 | }\r |
768 | \r |
a47dd663 |
769 | lprintf("emu_write_config: %s ", cfg);\r |
58c86d00 |
770 | ret = config_writesect(cfg, game_sect);\r |
1ca2ea4f |
771 | if (write_lrom) config_writelrom(cfg);\r |
ea8c405f |
772 | #ifndef NO_SYNC\r |
58c86d00 |
773 | sync();\r |
ea8c405f |
774 | #endif\r |
58c86d00 |
775 | lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r |
ea8c405f |
776 | \r |
58c86d00 |
777 | if (ret == 0) config_slot_current = config_slot;\r |
778 | return ret == 0;\r |
ea8c405f |
779 | }\r |
780 | \r |
781 | \r |
e2de9939 |
782 | /* always using built-in font */\r |
783 | \r |
cc41eb4f |
784 | #define mk_text_out(name, type, val, topleft, step_x, step_y) \\r |
e2de9939 |
785 | void name(int x, int y, const char *text) \\r |
786 | { \\r |
787 | int i, l, len = strlen(text); \\r |
cc41eb4f |
788 | type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r |
e2de9939 |
789 | \\r |
cc41eb4f |
790 | for (i = 0; i < len; i++, screen += 8 * step_x) \\r |
e2de9939 |
791 | { \\r |
792 | for (l = 0; l < 8; l++) \\r |
793 | { \\r |
794 | unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r |
cc41eb4f |
795 | type *s = screen + l * step_y; \\r |
796 | if (fd&0x80) s[step_x * 0] = val; \\r |
797 | if (fd&0x40) s[step_x * 1] = val; \\r |
798 | if (fd&0x20) s[step_x * 2] = val; \\r |
799 | if (fd&0x10) s[step_x * 3] = val; \\r |
800 | if (fd&0x08) s[step_x * 4] = val; \\r |
801 | if (fd&0x04) s[step_x * 5] = val; \\r |
802 | if (fd&0x02) s[step_x * 6] = val; \\r |
803 | if (fd&0x01) s[step_x * 7] = val; \\r |
e2de9939 |
804 | } \\r |
805 | } \\r |
ea8c405f |
806 | }\r |
807 | \r |
cc41eb4f |
808 | mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r |
809 | mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r |
810 | mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r |
811 | (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r |
812 | mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r |
813 | (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r |
ea8c405f |
814 | \r |
e2de9939 |
815 | #undef mk_text_out\r |
ea8c405f |
816 | \r |
817 | \r |
d34a42f9 |
818 | void update_movie(void)\r |
ea8c405f |
819 | {\r |
820 | int offs = Pico.m.frame_count*3 + 0x40;\r |
821 | if (offs+3 > movie_size) {\r |
822 | free(movie_data);\r |
823 | movie_data = 0;\r |
b24e0f6c |
824 | emu_status_msg("END OF MOVIE.");\r |
ea8c405f |
825 | lprintf("END OF MOVIE.\n");\r |
ea8c405f |
826 | } else {\r |
827 | // MXYZ SACB RLDU\r |
828 | PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r |
f8af9634 |
829 | if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C\r |
830 | if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A\r |
831 | if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B\r |
ea8c405f |
832 | PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r |
f8af9634 |
833 | if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C\r |
834 | if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A\r |
835 | if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B\r |
ea8c405f |
836 | PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r |
837 | if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r |
838 | if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r |
839 | PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r |
840 | if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r |
841 | if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r |
842 | }\r |
843 | }\r |
844 | \r |
ea8c405f |
845 | static int try_ropen_file(const char *fname)\r |
846 | {\r |
847 | FILE *f;\r |
848 | \r |
849 | f = fopen(fname, "rb");\r |
850 | if (f) {\r |
851 | fclose(f);\r |
852 | return 1;\r |
853 | }\r |
854 | return 0;\r |
855 | }\r |
856 | \r |
a47dd663 |
857 | char *emu_get_save_fname(int load, int is_sram, int slot)\r |
ea8c405f |
858 | {\r |
859 | static char saveFname[512];\r |
860 | char ext[16];\r |
861 | \r |
862 | if (is_sram)\r |
863 | {\r |
6bc00695 |
864 | strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r |
865 | romfname_ext(saveFname, (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);\r |
866 | if (!load)\r |
867 | return saveFname;\r |
868 | \r |
869 | if (try_ropen_file(saveFname))\r |
870 | return saveFname;\r |
871 | \r |
872 | romfname_ext(saveFname, NULL, ext);\r |
873 | if (try_ropen_file(saveFname))\r |
874 | return saveFname;\r |
ea8c405f |
875 | }\r |
876 | else\r |
877 | {\r |
6bc00695 |
878 | const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";\r |
879 | const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";\r |
ea8c405f |
880 | ext[0] = 0;\r |
6bc00695 |
881 | if (slot > 0 && slot < 10)\r |
882 | sprintf(ext, ".%i", slot);\r |
883 | strcat(ext, ext_main);\r |
884 | \r |
885 | if (!load) {\r |
886 | romfname_ext(saveFname, "mds" PATH_SEP, ext);\r |
887 | return saveFname;\r |
888 | }\r |
889 | else {\r |
890 | romfname_ext(saveFname, "mds" PATH_SEP, ext);\r |
891 | if (try_ropen_file(saveFname))\r |
892 | return saveFname;\r |
ea8c405f |
893 | \r |
ea8c405f |
894 | romfname_ext(saveFname, NULL, ext);\r |
6bc00695 |
895 | if (try_ropen_file(saveFname))\r |
896 | return saveFname;\r |
897 | \r |
898 | // try the other ext\r |
899 | ext[0] = 0;\r |
900 | if (slot > 0 && slot < 10)\r |
901 | sprintf(ext, ".%i", slot);\r |
902 | strcat(ext, ext_othr);\r |
903 | \r |
904 | romfname_ext(saveFname, "mds"PATH_SEP, ext);\r |
905 | if (try_ropen_file(saveFname))\r |
906 | return saveFname;\r |
ea8c405f |
907 | }\r |
908 | }\r |
909 | \r |
6bc00695 |
910 | return NULL;\r |
ea8c405f |
911 | }\r |
912 | \r |
a47dd663 |
913 | int emu_check_save_file(int slot)\r |
ea8c405f |
914 | {\r |
a47dd663 |
915 | return emu_get_save_fname(1, 0, slot) ? 1 : 0;\r |
ea8c405f |
916 | }\r |
917 | \r |
a47dd663 |
918 | int emu_save_load_game(int load, int sram)\r |
ea8c405f |
919 | {\r |
920 | int ret = 0;\r |
921 | char *saveFname;\r |
922 | \r |
923 | // make save filename\r |
a47dd663 |
924 | saveFname = emu_get_save_fname(load, sram, state_slot);\r |
ea8c405f |
925 | if (saveFname == NULL) {\r |
d34a42f9 |
926 | if (!sram)\r |
b24e0f6c |
927 | emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r |
ea8c405f |
928 | return -1;\r |
929 | }\r |
930 | \r |
931 | lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r |
932 | \r |
da42200b |
933 | if (sram)\r |
934 | {\r |
ea8c405f |
935 | FILE *sramFile;\r |
936 | int sram_size;\r |
937 | unsigned char *sram_data;\r |
938 | int truncate = 1;\r |
602133e1 |
939 | if (PicoAHW & PAHW_MCD)\r |
940 | {\r |
941 | if (PicoOpt&POPT_EN_MCD_RAMCART) {\r |
ea8c405f |
942 | sram_size = 0x12000;\r |
943 | sram_data = SRam.data;\r |
944 | if (sram_data)\r |
945 | memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r |
946 | } else {\r |
947 | sram_size = 0x2000;\r |
948 | sram_data = Pico_mcd->bram;\r |
949 | truncate = 0; // the .brm may contain RAM cart data after normal brm\r |
950 | }\r |
951 | } else {\r |
952 | sram_size = SRam.end-SRam.start+1;\r |
953 | if(Pico.m.sram_reg & 4) sram_size=0x2000;\r |
954 | sram_data = SRam.data;\r |
955 | }\r |
956 | if (!sram_data) return 0; // SRam forcefully disabled for this game\r |
957 | \r |
602133e1 |
958 | if (load)\r |
959 | {\r |
ea8c405f |
960 | sramFile = fopen(saveFname, "rb");\r |
961 | if(!sramFile) return -1;\r |
962 | fread(sram_data, 1, sram_size, sramFile);\r |
963 | fclose(sramFile);\r |
602133e1 |
964 | if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r |
ea8c405f |
965 | memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r |
966 | } else {\r |
967 | // sram save needs some special processing\r |
968 | // see if we have anything to save\r |
969 | for (; sram_size > 0; sram_size--)\r |
970 | if (sram_data[sram_size-1]) break;\r |
971 | \r |
972 | if (sram_size) {\r |
973 | sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r |
974 | if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r |
975 | if (!sramFile) return -1;\r |
976 | ret = fwrite(sram_data, 1, sram_size, sramFile);\r |
977 | ret = (ret != sram_size) ? -1 : 0;\r |
978 | fclose(sramFile);\r |
979 | #ifndef NO_SYNC\r |
980 | sync();\r |
981 | #endif\r |
982 | }\r |
983 | }\r |
984 | return ret;\r |
985 | }\r |
986 | else\r |
987 | {\r |
bcc9eda0 |
988 | ret = PicoState(saveFname, !load);\r |
989 | if (!ret) {\r |
ea8c405f |
990 | #ifndef NO_SYNC\r |
bcc9eda0 |
991 | if (!load) sync();\r |
ea8c405f |
992 | #endif\r |
54646a39 |
993 | emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");\r |
bcc9eda0 |
994 | } else {\r |
b24e0f6c |
995 | emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r |
ea8c405f |
996 | ret = -1;\r |
997 | }\r |
998 | \r |
ea8c405f |
999 | return ret;\r |
1000 | }\r |
1001 | }\r |
bdec53c9 |
1002 | \r |
a47dd663 |
1003 | void emu_set_fastforward(int set_on)\r |
c060a9ab |
1004 | {\r |
1005 | static void *set_PsndOut = NULL;\r |
1006 | static int set_Frameskip, set_EmuOpt, is_on = 0;\r |
1007 | \r |
1008 | if (set_on && !is_on) {\r |
1009 | set_PsndOut = PsndOut;\r |
1010 | set_Frameskip = currentConfig.Frameskip;\r |
1011 | set_EmuOpt = currentConfig.EmuOpt;\r |
1012 | PsndOut = NULL;\r |
1013 | currentConfig.Frameskip = 8;\r |
1014 | currentConfig.EmuOpt &= ~4;\r |
1015 | currentConfig.EmuOpt |= 0x40000;\r |
1016 | is_on = 1;\r |
b24e0f6c |
1017 | emu_status_msg("FAST FORWARD");\r |
c060a9ab |
1018 | }\r |
1019 | else if (!set_on && is_on) {\r |
1020 | PsndOut = set_PsndOut;\r |
1021 | currentConfig.Frameskip = set_Frameskip;\r |
1022 | currentConfig.EmuOpt = set_EmuOpt;\r |
1023 | PsndRerate(1);\r |
1024 | is_on = 0;\r |
1025 | }\r |
1026 | }\r |
1027 | \r |
d687ef50 |
1028 | static void emu_tray_open(void)\r |
c060a9ab |
1029 | {\r |
d687ef50 |
1030 | engineState = PGS_TrayMenu;\r |
1031 | }\r |
1032 | \r |
1033 | static void emu_tray_close(void)\r |
1034 | {\r |
1035 | emu_status_msg("CD tray closed.");\r |
f2cf8472 |
1036 | }\r |
1037 | \r |
1038 | void emu_reset_game(void)\r |
1039 | {\r |
1040 | PicoReset();\r |
1041 | reset_timing = 1;\r |
1042 | }\r |
1043 | \r |
1044 | void run_events_pico(unsigned int events)\r |
1045 | {\r |
1046 | int lim_x;\r |
1047 | \r |
1048 | if (events & PEV_PICO_SWINP) {\r |
c060a9ab |
1049 | pico_inp_mode++;\r |
d34a42f9 |
1050 | if (pico_inp_mode > 2)\r |
1051 | pico_inp_mode = 0;\r |
c060a9ab |
1052 | switch (pico_inp_mode) {\r |
b24e0f6c |
1053 | case 2: emu_status_msg("Input: Pen on Pad"); break;\r |
1054 | case 1: emu_status_msg("Input: Pen on Storyware"); break;\r |
1055 | case 0: emu_status_msg("Input: Joystick");\r |
c060a9ab |
1056 | PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r |
1057 | break;\r |
1058 | }\r |
c060a9ab |
1059 | }\r |
f2cf8472 |
1060 | if (events & PEV_PICO_PPREV) {\r |
c060a9ab |
1061 | PicoPicohw.page--;\r |
d34a42f9 |
1062 | if (PicoPicohw.page < 0)\r |
1063 | PicoPicohw.page = 0;\r |
b24e0f6c |
1064 | emu_status_msg("Page %i", PicoPicohw.page);\r |
c060a9ab |
1065 | }\r |
f2cf8472 |
1066 | if (events & PEV_PICO_PNEXT) {\r |
c060a9ab |
1067 | PicoPicohw.page++;\r |
d34a42f9 |
1068 | if (PicoPicohw.page > 6)\r |
1069 | PicoPicohw.page = 6;\r |
b24e0f6c |
1070 | emu_status_msg("Page %i", PicoPicohw.page);\r |
c060a9ab |
1071 | }\r |
f2cf8472 |
1072 | \r |
1073 | if (pico_inp_mode == 0)\r |
1074 | return;\r |
1075 | \r |
1076 | /* handle other input modes */\r |
1077 | if (PicoPad[0] & 1) pico_pen_y--;\r |
1078 | if (PicoPad[0] & 2) pico_pen_y++;\r |
1079 | if (PicoPad[0] & 4) pico_pen_x--;\r |
1080 | if (PicoPad[0] & 8) pico_pen_x++;\r |
1081 | PicoPad[0] &= ~0x0f; // release UDLR\r |
1082 | \r |
1083 | lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r |
1084 | if (pico_pen_y < 8)\r |
1085 | pico_pen_y = 8;\r |
1086 | if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r |
1087 | pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r |
1088 | if (pico_pen_x < 0)\r |
1089 | pico_pen_x = 0;\r |
1090 | if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r |
1091 | pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r |
1092 | \r |
1093 | PicoPicohw.pen_pos[0] = pico_pen_x;\r |
1094 | if (!(Pico.video.reg[12] & 1))\r |
1095 | PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r |
1096 | PicoPicohw.pen_pos[0] += 0x3c;\r |
1097 | PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r |
c060a9ab |
1098 | }\r |
1099 | \r |
d34a42f9 |
1100 | static void do_turbo(int *pad, int acts)\r |
f0f0d2df |
1101 | {\r |
1102 | static int turbo_pad = 0;\r |
1103 | static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r |
1104 | int inc = currentConfig.turbo_rate * 2;\r |
1105 | \r |
1106 | if (acts & 0x1000) {\r |
1107 | turbo_cnt[0] += inc;\r |
1108 | if (turbo_cnt[0] >= 60)\r |
1109 | turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r |
1110 | }\r |
1111 | if (acts & 0x2000) {\r |
1112 | turbo_cnt[1] += inc;\r |
1113 | if (turbo_cnt[1] >= 60)\r |
1114 | turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r |
1115 | }\r |
1116 | if (acts & 0x4000) {\r |
1117 | turbo_cnt[2] += inc;\r |
1118 | if (turbo_cnt[2] >= 60)\r |
1119 | turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r |
1120 | }\r |
1121 | *pad |= turbo_pad & (acts >> 8);\r |
1122 | }\r |
c060a9ab |
1123 | \r |
f2cf8472 |
1124 | static void run_events_ui(unsigned int which)\r |
d34a42f9 |
1125 | {\r |
1126 | if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r |
1127 | {\r |
1128 | int do_it = 1;\r |
a47dd663 |
1129 | if ( emu_check_save_file(state_slot) &&\r |
d34a42f9 |
1130 | (((which & PEV_STATE_LOAD) && (currentConfig.EmuOpt & EOPT_CONFIRM_LOAD)) ||\r |
1131 | ((which & PEV_STATE_SAVE) && (currentConfig.EmuOpt & EOPT_CONFIRM_SAVE))) )\r |
1132 | {\r |
1133 | const char *nm;\r |
1134 | char tmp[64];\r |
1135 | int keys, len;\r |
1136 | \r |
1137 | strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");\r |
1138 | len = strlen(tmp);\r |
1139 | nm = in_get_key_name(-1, -PBTN_MA3);\r |
1140 | snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r |
1141 | len = strlen(tmp);\r |
1142 | nm = in_get_key_name(-1, -PBTN_MBACK);\r |
1143 | snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r |
1144 | \r |
1145 | plat_status_msg_busy_first(tmp);\r |
1146 | \r |
1147 | in_set_blocking(1);\r |
1148 | while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r |
1149 | ;\r |
1150 | while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )\r |
1151 | ;\r |
1152 | if (keys & PBTN_MBACK)\r |
1153 | do_it = 0;\r |
1154 | while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r |
1155 | ;\r |
1156 | in_set_blocking(0);\r |
1157 | }\r |
1158 | if (do_it) {\r |
54646a39 |
1159 | plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");\r |
d34a42f9 |
1160 | PicoStateProgressCB = plat_status_msg_busy_next;\r |
a47dd663 |
1161 | emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r |
d34a42f9 |
1162 | PicoStateProgressCB = NULL;\r |
1163 | }\r |
1164 | }\r |
1165 | if (which & PEV_SWITCH_RND)\r |
1166 | {\r |
d90f5bd7 |
1167 | plat_video_toggle_renderer(1, 0);\r |
d34a42f9 |
1168 | }\r |
1169 | if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r |
1170 | {\r |
1171 | if (which & PEV_SSLOT_PREV) {\r |
1172 | state_slot -= 1;\r |
1173 | if (state_slot < 0)\r |
1174 | state_slot = 9;\r |
1175 | } else {\r |
1176 | state_slot += 1;\r |
1177 | if (state_slot > 9)\r |
1178 | state_slot = 0;\r |
1179 | }\r |
1180 | \r |
b24e0f6c |
1181 | emu_status_msg("SAVE SLOT %i [%s]", state_slot,\r |
a47dd663 |
1182 | emu_check_save_file(state_slot) ? "USED" : "FREE");\r |
d34a42f9 |
1183 | }\r |
1184 | if (which & PEV_MENU)\r |
1185 | engineState = PGS_Menu;\r |
1186 | }\r |
1187 | \r |
1188 | void emu_update_input(void)\r |
1189 | {\r |
093b8a42 |
1190 | static int prev_events = 0;\r |
1191 | int actions[IN_BINDTYPE_COUNT] = { 0, };\r |
1192 | int pl_actions[2];\r |
1193 | int events;\r |
d34a42f9 |
1194 | \r |
093b8a42 |
1195 | in_update(actions);\r |
d34a42f9 |
1196 | \r |
093b8a42 |
1197 | pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r |
1198 | pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r |
d34a42f9 |
1199 | \r |
093b8a42 |
1200 | PicoPad[0] = pl_actions[0] & 0xfff;\r |
1201 | PicoPad[1] = pl_actions[1] & 0xfff;\r |
d34a42f9 |
1202 | \r |
093b8a42 |
1203 | if (pl_actions[0] & 0x7000)\r |
1204 | do_turbo(&PicoPad[0], pl_actions[0]);\r |
1205 | if (pl_actions[1] & 0x7000)\r |
1206 | do_turbo(&PicoPad[1], pl_actions[1]);\r |
1207 | \r |
1208 | events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r |
d34a42f9 |
1209 | \r |
1210 | // volume is treated in special way and triggered every frame\r |
1211 | if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r |
1212 | plat_update_volume(1, events & PEV_VOL_UP);\r |
1213 | \r |
093b8a42 |
1214 | if ((events ^ prev_events) & PEV_FF) {\r |
a47dd663 |
1215 | emu_set_fastforward(events & PEV_FF);\r |
d34a42f9 |
1216 | plat_update_volume(0, 0);\r |
f2cf8472 |
1217 | reset_timing = 1;\r |
d34a42f9 |
1218 | }\r |
1219 | \r |
093b8a42 |
1220 | events &= ~prev_events;\r |
d34a42f9 |
1221 | \r |
f2cf8472 |
1222 | if (PicoAHW == PAHW_PICO)\r |
1223 | run_events_pico(events);\r |
d34a42f9 |
1224 | if (events)\r |
f2cf8472 |
1225 | run_events_ui(events);\r |
d34a42f9 |
1226 | if (movie_data)\r |
1227 | update_movie();\r |
1228 | \r |
093b8a42 |
1229 | prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r |
d34a42f9 |
1230 | }\r |
1231 | \r |
f2cf8472 |
1232 | static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r |
1233 | {\r |
1234 | strcpy(path_with_reserve + pos, name);\r |
1235 | if (plat_is_dir(path_with_reserve))\r |
1236 | return;\r |
1237 | if (mkdir(path_with_reserve, 0777) < 0)\r |
1238 | lprintf("failed to create: %s\n", path_with_reserve);\r |
1239 | }\r |
1240 | \r |
1241 | void emu_init(void)\r |
1242 | {\r |
27701801 |
1243 | char path[512];\r |
f2cf8472 |
1244 | int pos;\r |
1245 | \r |
1246 | /* make dirs for saves */\r |
27701801 |
1247 | pos = plat_get_root_dir(path, sizeof(path) - 4);\r |
1248 | mkdir_path(path, pos, "mds");\r |
1249 | mkdir_path(path, pos, "srm");\r |
1250 | mkdir_path(path, pos, "brm");\r |
1251 | \r |
1252 | make_config_cfg(path);\r |
1253 | config_readlrom(path);\r |
f2cf8472 |
1254 | \r |
1255 | PicoInit();\r |
1256 | PicoMessage = plat_status_msg_busy_next;\r |
d687ef50 |
1257 | PicoMCDopenTray = emu_tray_open;\r |
1258 | PicoMCDcloseTray = emu_tray_close;\r |
f2cf8472 |
1259 | }\r |
1260 | \r |
1261 | void emu_finish(void)\r |
1262 | {\r |
1263 | // save SRAM\r |
a47dd663 |
1264 | if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r |
1265 | emu_save_load_game(0, 1);\r |
f2cf8472 |
1266 | SRam.changed = 0;\r |
1267 | }\r |
1268 | \r |
27701801 |
1269 | if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r |
1270 | char cfg[512];\r |
1271 | make_config_cfg(cfg);\r |
1272 | config_writelrom(cfg);\r |
1273 | #ifndef NO_SYNC\r |
1274 | sync();\r |
1275 | #endif\r |
1276 | }\r |
f2cf8472 |
1277 | \r |
1278 | PicoExit();\r |
1279 | }\r |
1280 | \r |
b24e0f6c |
1281 | static void skip_frame(int do_audio)\r |
1282 | {\r |
1283 | PicoSkipFrame = do_audio ? 1 : 2;\r |
1284 | PicoFrame();\r |
1285 | PicoSkipFrame = 0;\r |
1286 | }\r |
1287 | \r |
1288 | /* our tick here is 1 us right now */\r |
1289 | #define ms_to_ticks(x) (unsigned int)(x * 1000)\r |
1290 | #define get_ticks() plat_get_ticks_us()\r |
1291 | \r |
1292 | void emu_loop(void)\r |
1293 | {\r |
1294 | int pframes_done; /* "period" frames, used for sync */\r |
1295 | int frames_done, frames_shown; /* actual frames for fps counter */\r |
1296 | int oldmodes, target_fps, target_frametime;\r |
1297 | unsigned int timestamp_base = 0, timestamp_fps;\r |
1298 | char *notice_msg = NULL;\r |
1299 | char fpsbuff[24];\r |
1300 | int i;\r |
1301 | \r |
1302 | fpsbuff[0] = 0;\r |
1303 | \r |
1304 | /* make sure we are in correct mode */\r |
1305 | oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r |
1306 | Pico.m.dirtyPal = 1;\r |
1307 | \r |
1308 | /* number of ticks per frame */\r |
1309 | if (Pico.m.pal) {\r |
1310 | target_fps = 50;\r |
1311 | target_frametime = ms_to_ticks(1000) / 50;\r |
1312 | } else {\r |
1313 | target_fps = 60;\r |
1314 | target_frametime = ms_to_ticks(1000) / 60 + 1;\r |
1315 | }\r |
1316 | \r |
1317 | // prepare CD buffer\r |
1318 | if (PicoAHW & PAHW_MCD)\r |
1319 | PicoCDBufferInit();\r |
1320 | \r |
b24e0f6c |
1321 | pemu_loop_prep();\r |
1322 | \r |
1323 | timestamp_fps = get_ticks();\r |
1324 | reset_timing = 1;\r |
1325 | \r |
1326 | frames_done = frames_shown = pframes_done = 0;\r |
1327 | \r |
7b436906 |
1328 | plat_video_wait_vsync();\r |
1329 | \r |
b24e0f6c |
1330 | /* loop with resync every 1 sec. */\r |
1331 | while (engineState == PGS_Running)\r |
1332 | {\r |
1333 | unsigned int timestamp;\r |
1334 | int diff, diff_lim;\r |
1335 | int modes;\r |
1336 | \r |
1337 | timestamp = get_ticks();\r |
1338 | if (reset_timing) {\r |
1339 | reset_timing = 0;\r |
1340 | timestamp_base = timestamp;\r |
1341 | pframes_done = 0;\r |
1342 | }\r |
1343 | \r |
1344 | // show notice_msg message?\r |
1345 | if (notice_msg_time != 0)\r |
1346 | {\r |
1347 | static int noticeMsgSum;\r |
54646a39 |
1348 | if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {\r |
b24e0f6c |
1349 | notice_msg_time = 0;\r |
1350 | plat_status_msg_clear();\r |
1351 | notice_msg = NULL;\r |
1352 | } else {\r |
1353 | int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];\r |
1354 | if (sum != noticeMsgSum) {\r |
1355 | plat_status_msg_clear();\r |
1356 | noticeMsgSum = sum;\r |
1357 | }\r |
1358 | notice_msg = noticeMsg;\r |
1359 | }\r |
1360 | }\r |
1361 | \r |
1362 | // check for mode changes\r |
1363 | modes = ((Pico.video.reg[12]&1)<<2) | (Pico.video.reg[1]&8);\r |
1364 | if (modes != oldmodes) {\r |
1365 | oldmodes = modes;\r |
1366 | pemu_video_mode_change(!(modes & 4), (modes & 8));\r |
1367 | }\r |
1368 | \r |
1369 | // second changed?\r |
1370 | if (timestamp - timestamp_fps >= ms_to_ticks(1000))\r |
1371 | {\r |
1372 | #ifdef BENCHMARK\r |
1373 | static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r |
1374 | if (++bench == 10) {\r |
1375 | bench = 0;\r |
1376 | bench_fps_s = bench_fps;\r |
1377 | bf[bfp++ & 3] = bench_fps;\r |
1378 | bench_fps = 0;\r |
1379 | }\r |
1380 | bench_fps += frames_shown;\r |
1381 | sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r |
1382 | #else\r |
1383 | if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {\r |
1384 | sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r |
1385 | if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r |
1386 | }\r |
1387 | #endif\r |
1388 | frames_shown = frames_done = 0;\r |
1389 | timestamp_fps += ms_to_ticks(1000);\r |
1390 | }\r |
1391 | #ifdef PFRAMES\r |
1392 | sprintf(fpsbuff, "%i", Pico.m.frame_count);\r |
1393 | #endif\r |
1394 | \r |
1395 | if (timestamp - timestamp_base >= ms_to_ticks(1000))\r |
1396 | {\r |
21ecaf23 |
1397 | if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)\r |
b24e0f6c |
1398 | pframes_done = 0;\r |
21ecaf23 |
1399 | else {\r |
b24e0f6c |
1400 | pframes_done -= target_fps;\r |
21ecaf23 |
1401 | /* don't allow it to drift during heavy slowdowns */\r |
54646a39 |
1402 | if (pframes_done < -5) {\r |
1403 | reset_timing = 1;\r |
1404 | continue;\r |
1405 | }\r |
21ecaf23 |
1406 | if (pframes_done < -2)\r |
1407 | pframes_done = -2;\r |
1408 | }\r |
b24e0f6c |
1409 | timestamp_base += ms_to_ticks(1000);\r |
1410 | }\r |
1411 | \r |
1412 | diff = timestamp - timestamp_base;\r |
1413 | diff_lim = (pframes_done + 1) * target_frametime;\r |
1414 | \r |
1415 | if (currentConfig.Frameskip >= 0) // frameskip enabled\r |
1416 | {\r |
1417 | for (i = 0; i < currentConfig.Frameskip; i++) {\r |
1418 | emu_update_input();\r |
1419 | skip_frame(1);\r |
1420 | pframes_done++; frames_done++;\r |
1421 | diff_lim += target_frametime;\r |
1422 | \r |
21ecaf23 |
1423 | if (!(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) {\r |
b24e0f6c |
1424 | timestamp = get_ticks();\r |
1425 | diff = timestamp - timestamp_base;\r |
0d83abe2 |
1426 | if (!reset_timing && diff < diff_lim) // we are too fast\r |
b24e0f6c |
1427 | plat_wait_till_us(timestamp_base + diff_lim);\r |
1428 | }\r |
1429 | }\r |
1430 | }\r |
1431 | else if (diff > diff_lim)\r |
1432 | {\r |
1433 | /* no time left for this frame - skip */\r |
54646a39 |
1434 | if (diff - diff_lim >= ms_to_ticks(200)) {\r |
b24e0f6c |
1435 | /* if too much behind, reset instead */\r |
1436 | reset_timing = 1;\r |
1437 | continue;\r |
1438 | }\r |
1439 | emu_update_input();\r |
1440 | skip_frame(diff < diff_lim + target_frametime * 2);\r |
1441 | pframes_done++; frames_done++;\r |
1442 | continue;\r |
1443 | }\r |
1444 | \r |
1445 | emu_update_input();\r |
1446 | PicoFrame();\r |
1447 | \r |
1448 | /* frame limiter */\r |
21ecaf23 |
1449 | if (!reset_timing && !(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT))\r |
b24e0f6c |
1450 | {\r |
1451 | timestamp = get_ticks();\r |
1452 | diff = timestamp - timestamp_base;\r |
1453 | \r |
1454 | // sleep or vsync if we are still too fast\r |
1455 | if (diff < diff_lim)\r |
1456 | {\r |
1457 | // we are too fast\r |
7b436906 |
1458 | plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);\r |
1459 | if (currentConfig.EmuOpt & EOPT_VSYNC)\r |
b24e0f6c |
1460 | plat_video_wait_vsync();\r |
b24e0f6c |
1461 | }\r |
1462 | }\r |
1463 | \r |
1464 | pemu_update_display(fpsbuff, notice_msg);\r |
1465 | \r |
1466 | pframes_done++; frames_done++; frames_shown++;\r |
1467 | }\r |
1468 | \r |
1469 | emu_set_fastforward(0);\r |
1470 | \r |
b24e0f6c |
1471 | // save SRAM\r |
1472 | if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r |
1473 | plat_status_msg_busy_first("Writing SRAM/BRAM...");\r |
1474 | emu_save_load_game(0, 1);\r |
1475 | SRam.changed = 0;\r |
1476 | }\r |
1477 | \r |
b24e0f6c |
1478 | pemu_loop_end();\r |
730259b7 |
1479 | \r |
1480 | // pemu_loop_end() might want to do 1 frame for bg image,\r |
1481 | // so free CD buffer here\r |
1482 | if (PicoAHW & PAHW_MCD)\r |
1483 | PicoCDBufferFree();\r |
b24e0f6c |
1484 | }\r |
1485 | \r |