Commit | Line | Data |
---|---|---|
2446536b | 1 | /* |
2 | * libretro core glue for PicoDrive | |
3 | * (C) notaz, 2013 | |
4 | * | |
5 | * This work is licensed under the terms of MAME license. | |
6 | * See COPYING file in the top-level directory. | |
7 | */ | |
8 | ||
9 | #define _GNU_SOURCE 1 // mremap | |
10 | #include <stdio.h> | |
11 | #include <stdarg.h> | |
12 | #include <string.h> | |
e8b61936 | 13 | #ifndef _WIN32 |
f18d0e08 | 14 | #ifndef NO_MMAP |
2446536b | 15 | #include <sys/mman.h> |
f18d0e08 | 16 | #endif |
e8b61936 | 17 | #else |
6f1133bc | 18 | #include <io.h> |
e8b61936 | 19 | #include <windows.h> |
6f1133bc | 20 | #include <sys/types.h> |
e8b61936 | 21 | #endif |
c25d78ee | 22 | #include <errno.h> |
2446536b | 23 | #ifdef __MACH__ |
24 | #include <libkern/OSCacheControl.h> | |
25 | #endif | |
26 | ||
27 | #include <pico/pico_int.h> | |
86b38dc4 | 28 | #include <pico/state.h> |
5345c2b9 T |
29 | #include "../common/input_pico.h" |
30 | #include "../common/version.h" | |
2446536b | 31 | #include "libretro.h" |
32 | ||
f5d4045b | 33 | static retro_log_printf_t log_cb; |
2446536b | 34 | static retro_video_refresh_t video_cb; |
35 | static retro_input_poll_t input_poll_cb; | |
36 | static retro_input_state_t input_state_cb; | |
37 | static retro_environment_t environ_cb; | |
38 | static retro_audio_sample_batch_t audio_batch_cb; | |
39 | ||
2446536b | 40 | #define VOUT_MAX_WIDTH 320 |
41 | #define VOUT_MAX_HEIGHT 240 | |
42 | static void *vout_buf; | |
51c08950 | 43 | static int vout_width, vout_height, vout_offset; |
2446536b | 44 | |
ed06ffd3 T |
45 | #ifdef _MSC_VER |
46 | static short sndBuffer[2*44100/50]; | |
47 | #else | |
2446536b | 48 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50]; |
ed06ffd3 | 49 | #endif |
2446536b | 50 | |
2446536b | 51 | static void snd_write(int len); |
52 | ||
53 | #ifdef _WIN32 | |
54 | #define SLASH '\\' | |
55 | #else | |
56 | #define SLASH '/' | |
57 | #endif | |
58 | ||
59 | /* functions called by the core */ | |
60 | ||
61 | void cache_flush_d_inval_i(void *start, void *end) | |
62 | { | |
63 | #ifdef __arm__ | |
64 | #if defined(__BLACKBERRY_QNX__) | |
65 | msync(start, end - start, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); | |
66 | #elif defined(__MACH__) | |
67 | size_t len = (char *)end - (char *)start; | |
68 | sys_dcache_flush(start, len); | |
69 | sys_icache_invalidate(start, len); | |
70 | #else | |
71 | __clear_cache(start, end); | |
72 | #endif | |
73 | #endif | |
74 | } | |
75 | ||
e8b61936 | 76 | #ifdef _WIN32 |
6f1133bc T |
77 | /* mmap() replacement for Windows |
78 | * | |
79 | * Author: Mike Frysinger <vapier@gentoo.org> | |
80 | * Placed into the public domain | |
81 | */ | |
82 | ||
83 | /* References: | |
84 | * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx | |
85 | * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx | |
86 | * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx | |
87 | * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx | |
88 | */ | |
89 | ||
90 | #define PROT_READ 0x1 | |
91 | #define PROT_WRITE 0x2 | |
92 | /* This flag is only available in WinXP+ */ | |
93 | #ifdef FILE_MAP_EXECUTE | |
94 | #define PROT_EXEC 0x4 | |
95 | #else | |
96 | #define PROT_EXEC 0x0 | |
97 | #define FILE_MAP_EXECUTE 0 | |
98 | #endif | |
99 | ||
100 | #define MAP_SHARED 0x01 | |
101 | #define MAP_PRIVATE 0x02 | |
102 | #define MAP_ANONYMOUS 0x20 | |
103 | #define MAP_ANON MAP_ANONYMOUS | |
104 | #define MAP_FAILED ((void *) -1) | |
105 | ||
106 | #ifdef __USE_FILE_OFFSET64 | |
107 | # define DWORD_HI(x) (x >> 32) | |
108 | # define DWORD_LO(x) ((x) & 0xffffffff) | |
109 | #else | |
110 | # define DWORD_HI(x) (0) | |
111 | # define DWORD_LO(x) (x) | |
112 | #endif | |
113 | ||
114 | static void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) | |
2446536b | 115 | { |
ed06ffd3 T |
116 | uint32_t flProtect, dwDesiredAccess; |
117 | off_t end; | |
118 | HANDLE mmap_fd, h; | |
119 | void *ret; | |
120 | ||
6f1133bc T |
121 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) |
122 | return MAP_FAILED; | |
123 | if (fd == -1) { | |
124 | if (!(flags & MAP_ANON) || offset) | |
125 | return MAP_FAILED; | |
126 | } else if (flags & MAP_ANON) | |
127 | return MAP_FAILED; | |
128 | ||
6f1133bc T |
129 | if (prot & PROT_WRITE) { |
130 | if (prot & PROT_EXEC) | |
131 | flProtect = PAGE_EXECUTE_READWRITE; | |
132 | else | |
133 | flProtect = PAGE_READWRITE; | |
134 | } else if (prot & PROT_EXEC) { | |
135 | if (prot & PROT_READ) | |
136 | flProtect = PAGE_EXECUTE_READ; | |
137 | else if (prot & PROT_EXEC) | |
138 | flProtect = PAGE_EXECUTE; | |
139 | } else | |
140 | flProtect = PAGE_READONLY; | |
141 | ||
ed06ffd3 T |
142 | end = length + offset; |
143 | ||
6f1133bc T |
144 | if (fd == -1) |
145 | mmap_fd = INVALID_HANDLE_VALUE; | |
146 | else | |
147 | mmap_fd = (HANDLE)_get_osfhandle(fd); | |
148 | h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL); | |
149 | if (h == NULL) | |
150 | return MAP_FAILED; | |
151 | ||
6f1133bc T |
152 | if (prot & PROT_WRITE) |
153 | dwDesiredAccess = FILE_MAP_WRITE; | |
154 | else | |
155 | dwDesiredAccess = FILE_MAP_READ; | |
156 | if (prot & PROT_EXEC) | |
157 | dwDesiredAccess |= FILE_MAP_EXECUTE; | |
158 | if (flags & MAP_PRIVATE) | |
159 | dwDesiredAccess |= FILE_MAP_COPY; | |
ed06ffd3 | 160 | ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length); |
6f1133bc T |
161 | if (ret == NULL) { |
162 | CloseHandle(h); | |
163 | ret = MAP_FAILED; | |
164 | } | |
165 | return ret; | |
e8b61936 | 166 | } |
2446536b | 167 | |
6f1133bc | 168 | static void munmap(void *addr, size_t length) |
e8b61936 | 169 | { |
6f1133bc T |
170 | UnmapViewOfFile(addr); |
171 | /* ruh-ro, we leaked handle from CreateFileMapping() ... */ | |
e8b61936 | 172 | } |
f18d0e08 | 173 | #elif defined(NO_MMAP) |
5345c2b9 | 174 | #define PROT_EXEC 0x04 |
f18d0e08 | 175 | #define MAP_FAILED 0 |
176 | #define PROT_READ 0 | |
177 | #define PROT_WRITE 0 | |
178 | #define MAP_PRIVATE 0 | |
179 | #define MAP_ANONYMOUS 0 | |
180 | ||
181 | void* mmap(void *desired_addr, size_t len, int mmap_prot, int mmap_flags, int fildes, size_t off) | |
182 | { | |
183 | return malloc(len); | |
184 | } | |
185 | ||
186 | void munmap(void *base_addr, size_t len) | |
187 | { | |
188 | free(base_addr); | |
189 | } | |
190 | ||
191 | int mprotect(void *addr, size_t len, int prot) | |
192 | { | |
193 | /* stub - not really needed at this point since this codepath has no dynarecs */ | |
194 | return 0; | |
195 | } | |
196 | ||
e8b61936 | 197 | #endif |
8e5639bc | 198 | |
199 | #ifndef MAP_ANONYMOUS | |
200 | #define MAP_ANONYMOUS MAP_ANON | |
201 | #endif | |
202 | ||
e8b61936 | 203 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) |
204 | { | |
e8b61936 | 205 | int flags = MAP_PRIVATE | MAP_ANONYMOUS; |
206 | void *req, *ret; | |
207 | ||
208 | req = (void *)addr; | |
209 | ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0); | |
210 | if (ret == MAP_FAILED) { | |
f5d4045b | 211 | if (log_cb) |
212 | log_cb(RETRO_LOG_ERROR, "mmap(%08lx, %zd) failed: %d\n", addr, size, errno); | |
e8b61936 | 213 | return NULL; |
214 | } | |
215 | ||
216 | if (addr != 0 && ret != (void *)addr) { | |
f5d4045b | 217 | if (log_cb) |
218 | log_cb(RETRO_LOG_WARN, "warning: wanted to map @%08lx, got %p\n", | |
219 | addr, ret); | |
e8b61936 | 220 | |
221 | if (is_fixed) { | |
222 | munmap(ret, size); | |
223 | return NULL; | |
224 | } | |
225 | } | |
2446536b | 226 | |
227 | return ret; | |
228 | } | |
229 | ||
230 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
231 | { | |
8c8b7284 | 232 | #ifdef __linux__ |
2446536b | 233 | void *ret = mremap(ptr, oldsize, newsize, 0); |
234 | if (ret == MAP_FAILED) | |
235 | return NULL; | |
236 | ||
237 | return ret; | |
8c8b7284 | 238 | #else |
239 | void *tmp, *ret; | |
240 | size_t preserve_size; | |
241 | ||
242 | preserve_size = oldsize; | |
243 | if (preserve_size > newsize) | |
244 | preserve_size = newsize; | |
245 | tmp = malloc(preserve_size); | |
246 | if (tmp == NULL) | |
247 | return NULL; | |
248 | memcpy(tmp, ptr, preserve_size); | |
249 | ||
250 | munmap(ptr, oldsize); | |
251 | ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE, | |
252 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); | |
253 | if (ret == MAP_FAILED) { | |
254 | free(tmp); | |
255 | return NULL; | |
256 | } | |
257 | memcpy(ret, tmp, preserve_size); | |
258 | free(tmp); | |
259 | return ret; | |
260 | #endif | |
2446536b | 261 | } |
262 | ||
263 | void plat_munmap(void *ptr, size_t size) | |
264 | { | |
265 | if (ptr != NULL) | |
266 | munmap(ptr, size); | |
267 | } | |
268 | ||
c25d78ee | 269 | int plat_mem_set_exec(void *ptr, size_t size) |
270 | { | |
e8b61936 | 271 | #ifdef _WIN32 |
272 | int ret = VirtualProtect(ptr,size,PAGE_EXECUTE_READWRITE,0); | |
f5d4045b | 273 | if (ret == 0 && log_cb) |
274 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, 0); | |
e8b61936 | 275 | #else |
276 | int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC); | |
f5d4045b | 277 | if (ret != 0 && log_cb) |
278 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, errno); | |
e8b61936 | 279 | #endif |
c25d78ee | 280 | return ret; |
281 | } | |
282 | ||
2446536b | 283 | void emu_video_mode_change(int start_line, int line_count, int is_32cols) |
284 | { | |
285 | memset(vout_buf, 0, 320 * 240 * 2); | |
286 | vout_width = is_32cols ? 256 : 320; | |
287 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
51c08950 | 288 | |
289 | vout_height = line_count; | |
290 | vout_offset = vout_width * start_line; | |
2446536b | 291 | } |
292 | ||
293 | void emu_32x_startup(void) | |
294 | { | |
2446536b | 295 | } |
296 | ||
2446536b | 297 | void lprintf(const char *fmt, ...) |
298 | { | |
c681e48d | 299 | char buffer[256]; |
300 | va_list ap; | |
301 | va_start(ap, fmt); | |
302 | vsprintf(buffer, fmt, ap); | |
f5d4045b | 303 | /* TODO - add 'level' param for warning/error messages? */ |
304 | if (log_cb) | |
c681e48d | 305 | log_cb(RETRO_LOG_INFO, "%s\n", fmt); |
2446536b | 306 | } |
307 | ||
2446536b | 308 | /* libretro */ |
309 | void retro_set_environment(retro_environment_t cb) | |
310 | { | |
311 | static const struct retro_variable vars[] = { | |
312 | //{ "region", "Region; Auto|NTSC|PAL" }, | |
531a8f38 | 313 | { "picodrive_input1", "Input device 1; 3 button pad|6 button pad|None" }, |
314 | { "picodrive_input2", "Input device 2; 3 button pad|6 button pad|None" }, | |
27f190ea | 315 | { "picodrive_sprlim", "No sprite limit; disabled|enabled" }, |
316 | { "picodrive_ramcart", "MegaCD RAM cart; disabled|enabled" }, | |
b38bccea | 317 | { "picodrive_region", "Region; Auto|Japan NTSC|Japan PAL|US|Europe" }, |
0185b677 | 318 | #ifdef DRC_SH2 |
319 | { "picodrive_drc", "Dynamic recompilers; enabled|disabled" }, | |
320 | #endif | |
2446536b | 321 | { NULL, NULL }, |
322 | }; | |
323 | ||
324 | environ_cb = cb; | |
325 | ||
326 | cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars); | |
327 | } | |
328 | ||
329 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } | |
330 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } | |
331 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } | |
332 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } | |
333 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } | |
334 | ||
335 | unsigned retro_api_version(void) | |
336 | { | |
337 | return RETRO_API_VERSION; | |
338 | } | |
339 | ||
340 | void retro_set_controller_port_device(unsigned port, unsigned device) | |
341 | { | |
342 | } | |
343 | ||
344 | void retro_get_system_info(struct retro_system_info *info) | |
345 | { | |
346 | memset(info, 0, sizeof(*info)); | |
347 | info->library_name = "PicoDrive"; | |
348 | info->library_version = VERSION; | |
53b2e51c | 349 | info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|sms"; |
2446536b | 350 | info->need_fullpath = true; |
351 | } | |
352 | ||
353 | void retro_get_system_av_info(struct retro_system_av_info *info) | |
354 | { | |
355 | memset(info, 0, sizeof(*info)); | |
356 | info->timing.fps = Pico.m.pal ? 50 : 60; | |
357 | info->timing.sample_rate = 44100; | |
358 | info->geometry.base_width = 320; | |
51c08950 | 359 | info->geometry.base_height = vout_height; |
2446536b | 360 | info->geometry.max_width = VOUT_MAX_WIDTH; |
361 | info->geometry.max_height = VOUT_MAX_HEIGHT; | |
24a7ff72 | 362 | info->geometry.aspect_ratio = 4.0f / 3.0f; |
2446536b | 363 | } |
364 | ||
86b38dc4 | 365 | /* savestates */ |
366 | struct savestate_state { | |
367 | const char *load_buf; | |
368 | char *save_buf; | |
369 | size_t size; | |
370 | size_t pos; | |
371 | }; | |
372 | ||
373 | size_t state_read(void *p, size_t size, size_t nmemb, void *file) | |
374 | { | |
375 | struct savestate_state *state = file; | |
376 | size_t bsize = size * nmemb; | |
377 | ||
378 | if (state->pos + bsize > state->size) { | |
f5d4045b | 379 | if (log_cb) |
380 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
381 | state->pos + bsize, state->size); | |
86b38dc4 | 382 | bsize = state->size - state->pos; |
383 | if ((int)bsize <= 0) | |
384 | return 0; | |
385 | } | |
386 | ||
387 | memcpy(p, state->load_buf + state->pos, bsize); | |
388 | state->pos += bsize; | |
389 | return bsize; | |
390 | } | |
391 | ||
392 | size_t state_write(void *p, size_t size, size_t nmemb, void *file) | |
393 | { | |
394 | struct savestate_state *state = file; | |
395 | size_t bsize = size * nmemb; | |
396 | ||
397 | if (state->pos + bsize > state->size) { | |
f5d4045b | 398 | if (log_cb) |
399 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
400 | state->pos + bsize, state->size); | |
86b38dc4 | 401 | bsize = state->size - state->pos; |
402 | if ((int)bsize <= 0) | |
403 | return 0; | |
404 | } | |
405 | ||
406 | memcpy(state->save_buf + state->pos, p, bsize); | |
407 | state->pos += bsize; | |
408 | return bsize; | |
409 | } | |
410 | ||
411 | size_t state_skip(void *p, size_t size, size_t nmemb, void *file) | |
412 | { | |
413 | struct savestate_state *state = file; | |
414 | size_t bsize = size * nmemb; | |
415 | ||
416 | state->pos += bsize; | |
417 | return bsize; | |
418 | } | |
419 | ||
420 | size_t state_eof(void *file) | |
421 | { | |
422 | struct savestate_state *state = file; | |
423 | ||
424 | return state->pos >= state->size; | |
425 | } | |
426 | ||
427 | int state_fseek(void *file, long offset, int whence) | |
428 | { | |
429 | struct savestate_state *state = file; | |
430 | ||
431 | switch (whence) { | |
432 | case SEEK_SET: | |
433 | state->pos = offset; | |
434 | break; | |
435 | case SEEK_CUR: | |
436 | state->pos += offset; | |
437 | break; | |
438 | case SEEK_END: | |
439 | state->pos = state->size + offset; | |
440 | break; | |
441 | } | |
442 | return (int)state->pos; | |
443 | } | |
444 | ||
445 | /* savestate sizes vary wildly depending if cd/32x or | |
446 | * carthw is active, so run the whole thing to get size */ | |
2446536b | 447 | size_t retro_serialize_size(void) |
448 | { | |
86b38dc4 | 449 | struct savestate_state state = { 0, }; |
450 | int ret; | |
451 | ||
452 | ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek); | |
453 | if (ret != 0) | |
454 | return 0; | |
455 | ||
456 | return state.pos; | |
2446536b | 457 | } |
458 | ||
459 | bool retro_serialize(void *data, size_t size) | |
460 | { | |
86b38dc4 | 461 | struct savestate_state state = { 0, }; |
462 | int ret; | |
463 | ||
464 | state.save_buf = data; | |
465 | state.size = size; | |
466 | state.pos = 0; | |
467 | ||
468 | ret = PicoStateFP(&state, 1, NULL, state_write, | |
469 | NULL, state_fseek); | |
470 | return ret == 0; | |
2446536b | 471 | } |
472 | ||
473 | bool retro_unserialize(const void *data, size_t size) | |
474 | { | |
86b38dc4 | 475 | struct savestate_state state = { 0, }; |
476 | int ret; | |
477 | ||
478 | state.load_buf = data; | |
479 | state.size = size; | |
480 | state.pos = 0; | |
481 | ||
482 | ret = PicoStateFP(&state, 0, state_read, NULL, | |
483 | state_eof, state_fseek); | |
484 | return ret == 0; | |
2446536b | 485 | } |
486 | ||
487 | /* cheats - TODO */ | |
488 | void retro_cheat_reset(void) | |
489 | { | |
490 | } | |
491 | ||
492 | void retro_cheat_set(unsigned index, bool enabled, const char *code) | |
493 | { | |
494 | } | |
495 | ||
496 | /* multidisk support */ | |
497 | static bool disk_ejected; | |
498 | static unsigned int disk_current_index; | |
499 | static unsigned int disk_count; | |
500 | static struct disks_state { | |
501 | char *fname; | |
502 | } disks[8]; | |
503 | ||
504 | static bool disk_set_eject_state(bool ejected) | |
505 | { | |
506 | // TODO? | |
507 | disk_ejected = ejected; | |
508 | return true; | |
509 | } | |
510 | ||
511 | static bool disk_get_eject_state(void) | |
512 | { | |
513 | return disk_ejected; | |
514 | } | |
515 | ||
516 | static unsigned int disk_get_image_index(void) | |
517 | { | |
518 | return disk_current_index; | |
519 | } | |
520 | ||
521 | static bool disk_set_image_index(unsigned int index) | |
522 | { | |
274fcc35 | 523 | enum cd_img_type cd_type; |
2446536b | 524 | int ret; |
525 | ||
526 | if (index >= sizeof(disks) / sizeof(disks[0])) | |
527 | return false; | |
528 | ||
529 | if (disks[index].fname == NULL) { | |
f5d4045b | 530 | if (log_cb) |
531 | log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index); | |
2446536b | 532 | |
533 | // RetroArch specifies "no disk" with index == count, | |
534 | // so don't fail here.. | |
535 | disk_current_index = index; | |
536 | return true; | |
537 | } | |
538 | ||
f5d4045b | 539 | if (log_cb) |
540 | log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index, | |
541 | disks[index].fname); | |
2446536b | 542 | |
543 | ret = -1; | |
544 | cd_type = PicoCdCheck(disks[index].fname, NULL); | |
545 | if (cd_type != CIT_NOT_CD) | |
274fcc35 | 546 | ret = cdd_load(disks[index].fname, cd_type); |
2446536b | 547 | if (ret != 0) { |
f5d4045b | 548 | if (log_cb) |
549 | log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n"); | |
2446536b | 550 | return 0; |
551 | } | |
552 | ||
553 | disk_current_index = index; | |
554 | return true; | |
555 | } | |
556 | ||
557 | static unsigned int disk_get_num_images(void) | |
558 | { | |
559 | return disk_count; | |
560 | } | |
561 | ||
562 | static bool disk_replace_image_index(unsigned index, | |
563 | const struct retro_game_info *info) | |
564 | { | |
565 | bool ret = true; | |
566 | ||
567 | if (index >= sizeof(disks) / sizeof(disks[0])) | |
568 | return false; | |
569 | ||
570 | if (disks[index].fname != NULL) | |
571 | free(disks[index].fname); | |
572 | disks[index].fname = NULL; | |
573 | ||
574 | if (info != NULL) { | |
575 | disks[index].fname = strdup(info->path); | |
576 | if (index == disk_current_index) | |
577 | ret = disk_set_image_index(index); | |
578 | } | |
579 | ||
580 | return ret; | |
581 | } | |
582 | ||
583 | static bool disk_add_image_index(void) | |
584 | { | |
585 | if (disk_count >= sizeof(disks) / sizeof(disks[0])) | |
586 | return false; | |
587 | ||
588 | disk_count++; | |
589 | return true; | |
590 | } | |
591 | ||
592 | static struct retro_disk_control_callback disk_control = { | |
ed06ffd3 T |
593 | disk_set_eject_state, |
594 | disk_get_eject_state, | |
595 | disk_get_image_index, | |
596 | disk_set_image_index, | |
597 | disk_get_num_images, | |
598 | disk_replace_image_index, | |
599 | disk_add_image_index, | |
2446536b | 600 | }; |
601 | ||
602 | static void disk_tray_open(void) | |
603 | { | |
f5d4045b | 604 | if (log_cb) |
605 | log_cb(RETRO_LOG_INFO, "cd tray open\n"); | |
2446536b | 606 | disk_ejected = 1; |
607 | } | |
608 | ||
609 | static void disk_tray_close(void) | |
610 | { | |
f5d4045b | 611 | if (log_cb) |
612 | log_cb(RETRO_LOG_INFO, "cd tray close\n"); | |
2446536b | 613 | disk_ejected = 0; |
614 | } | |
615 | ||
616 | ||
617 | static const char * const biosfiles_us[] = { | |
b08a2950 | 618 | "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U" |
2446536b | 619 | }; |
620 | static const char * const biosfiles_eu[] = { | |
b08a2950 | 621 | "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E" |
2446536b | 622 | }; |
623 | static const char * const biosfiles_jp[] = { | |
b08a2950 | 624 | "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J" |
2446536b | 625 | }; |
626 | ||
627 | static void make_system_path(char *buf, size_t buf_size, | |
628 | const char *name, const char *ext) | |
629 | { | |
630 | const char *dir = NULL; | |
631 | ||
632 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) { | |
633 | snprintf(buf, buf_size, "%s%c%s%s", dir, SLASH, name, ext); | |
634 | } | |
635 | else { | |
636 | snprintf(buf, buf_size, "%s%s", name, ext); | |
637 | } | |
638 | } | |
639 | ||
640 | static const char *find_bios(int *region, const char *cd_fname) | |
641 | { | |
642 | const char * const *files; | |
643 | static char path[256]; | |
644 | int i, count; | |
645 | FILE *f = NULL; | |
646 | ||
647 | if (*region == 4) { // US | |
648 | files = biosfiles_us; | |
649 | count = sizeof(biosfiles_us) / sizeof(char *); | |
650 | } else if (*region == 8) { // EU | |
651 | files = biosfiles_eu; | |
652 | count = sizeof(biosfiles_eu) / sizeof(char *); | |
653 | } else if (*region == 1 || *region == 2) { | |
654 | files = biosfiles_jp; | |
655 | count = sizeof(biosfiles_jp) / sizeof(char *); | |
656 | } else { | |
657 | return NULL; | |
658 | } | |
659 | ||
660 | for (i = 0; i < count; i++) | |
661 | { | |
662 | make_system_path(path, sizeof(path), files[i], ".bin"); | |
663 | f = fopen(path, "rb"); | |
664 | if (f != NULL) | |
665 | break; | |
666 | ||
667 | make_system_path(path, sizeof(path), files[i], ".zip"); | |
668 | f = fopen(path, "rb"); | |
669 | if (f != NULL) | |
670 | break; | |
671 | } | |
672 | ||
673 | if (f != NULL) { | |
f5d4045b | 674 | if (log_cb) |
675 | log_cb(RETRO_LOG_INFO, "using bios: %s\n", path); | |
2446536b | 676 | fclose(f); |
677 | return path; | |
678 | } | |
679 | ||
680 | return NULL; | |
681 | } | |
682 | ||
683 | bool retro_load_game(const struct retro_game_info *info) | |
684 | { | |
685 | enum media_type_e media_type; | |
686 | static char carthw_path[256]; | |
687 | size_t i; | |
688 | ||
a1f2e1b1 | 689 | struct retro_input_descriptor desc[] = { |
690 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
691 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
692 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
693 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
694 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
695 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
696 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
697 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
698 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
699 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
700 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
701 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
702 | ||
703 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
704 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
705 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
706 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
707 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
708 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
709 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
710 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
711 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
712 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
713 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
714 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
715 | ||
716 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
717 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
718 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
719 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
720 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
721 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
722 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
723 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
724 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
725 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
726 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
727 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
728 | ||
729 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
730 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
731 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
732 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
733 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
734 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
735 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
736 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
737 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
738 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
739 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
740 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
741 | ||
742 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
743 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
744 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
745 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
746 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
747 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
748 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
749 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
750 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
751 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
752 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
753 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
754 | ||
755 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
756 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
757 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
758 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
759 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
760 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
761 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
762 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
763 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
764 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
765 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
766 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
767 | ||
768 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
769 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
770 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
771 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
772 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
773 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
774 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
775 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
776 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
777 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
778 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
779 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
780 | ||
781 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
782 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
783 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
784 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
785 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
786 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
787 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
788 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
789 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
790 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
791 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
792 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
793 | ||
794 | { 0 }, | |
795 | }; | |
796 | ||
797 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc); | |
798 | ||
2446536b | 799 | enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; |
800 | if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { | |
f5d4045b | 801 | if (log_cb) |
802 | log_cb(RETRO_LOG_ERROR, "RGB565 support required, sorry\n"); | |
2446536b | 803 | return false; |
804 | } | |
805 | ||
806 | if (info == NULL || info->path == NULL) { | |
f5d4045b | 807 | if (log_cb) |
808 | log_cb(RETRO_LOG_ERROR, "info->path required\n"); | |
2446536b | 809 | return false; |
810 | } | |
811 | ||
812 | for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) { | |
813 | if (disks[i].fname != NULL) { | |
814 | free(disks[i].fname); | |
815 | disks[i].fname = NULL; | |
816 | } | |
817 | } | |
818 | ||
819 | disk_current_index = 0; | |
820 | disk_count = 1; | |
821 | disks[0].fname = strdup(info->path); | |
822 | ||
823 | make_system_path(carthw_path, sizeof(carthw_path), "carthw", ".cfg"); | |
824 | ||
825 | media_type = PicoLoadMedia(info->path, carthw_path, | |
826 | find_bios, NULL); | |
827 | ||
828 | switch (media_type) { | |
829 | case PM_BAD_DETECT: | |
f5d4045b | 830 | if (log_cb) |
831 | log_cb(RETRO_LOG_ERROR, "Failed to detect ROM/CD image type.\n"); | |
2446536b | 832 | return false; |
833 | case PM_BAD_CD: | |
f5d4045b | 834 | if (log_cb) |
835 | log_cb(RETRO_LOG_ERROR, "Invalid CD image\n"); | |
2446536b | 836 | return false; |
837 | case PM_BAD_CD_NO_BIOS: | |
f5d4045b | 838 | if (log_cb) |
839 | log_cb(RETRO_LOG_ERROR, "Missing BIOS\n"); | |
2446536b | 840 | return false; |
841 | case PM_ERROR: | |
f5d4045b | 842 | if (log_cb) |
843 | log_cb(RETRO_LOG_ERROR, "Load error\n"); | |
2446536b | 844 | return false; |
845 | default: | |
846 | break; | |
847 | } | |
848 | ||
849 | PicoLoopPrepare(); | |
850 | ||
851 | PicoWriteSound = snd_write; | |
852 | memset(sndBuffer, 0, sizeof(sndBuffer)); | |
853 | PsndOut = sndBuffer; | |
27f190ea | 854 | PsndRerate(0); |
2446536b | 855 | |
856 | return true; | |
857 | } | |
858 | ||
859 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) | |
860 | { | |
861 | return false; | |
862 | } | |
863 | ||
864 | void retro_unload_game(void) | |
865 | { | |
866 | } | |
867 | ||
868 | unsigned retro_get_region(void) | |
869 | { | |
870 | return Pico.m.pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC; | |
871 | } | |
872 | ||
873 | void *retro_get_memory_data(unsigned id) | |
874 | { | |
875 | if (id != RETRO_MEMORY_SAVE_RAM) | |
876 | return NULL; | |
877 | ||
878 | if (PicoAHW & PAHW_MCD) | |
879 | return Pico_mcd->bram; | |
880 | else | |
881 | return SRam.data; | |
882 | } | |
883 | ||
884 | size_t retro_get_memory_size(unsigned id) | |
885 | { | |
0fd6751d | 886 | unsigned int i; |
887 | int sum; | |
888 | ||
2446536b | 889 | if (id != RETRO_MEMORY_SAVE_RAM) |
890 | return 0; | |
891 | ||
892 | if (PicoAHW & PAHW_MCD) | |
893 | // bram | |
894 | return 0x2000; | |
0fd6751d | 895 | |
896 | if (Pico.m.frame_count == 0) | |
2446536b | 897 | return SRam.size; |
0fd6751d | 898 | |
899 | // if game doesn't write to sram, don't report it to | |
900 | // libretro so that RA doesn't write out zeroed .srm | |
901 | for (i = 0, sum = 0; i < SRam.size; i++) | |
902 | sum |= SRam.data[i]; | |
903 | ||
904 | return (sum != 0) ? SRam.size : 0; | |
2446536b | 905 | } |
906 | ||
907 | void retro_reset(void) | |
908 | { | |
909 | PicoReset(); | |
910 | } | |
911 | ||
912 | static const unsigned short retro_pico_map[] = { | |
ed06ffd3 T |
913 | 1 << GBTN_B, |
914 | 1 << GBTN_A, | |
915 | 1 << GBTN_MODE, | |
916 | 1 << GBTN_START, | |
917 | 1 << GBTN_UP, | |
918 | 1 << GBTN_DOWN, | |
919 | 1 << GBTN_LEFT, | |
920 | 1 << GBTN_RIGHT, | |
921 | 1 << GBTN_C, | |
922 | 1 << GBTN_Y, | |
923 | 1 << GBTN_X, | |
924 | 1 << GBTN_Z, | |
2446536b | 925 | }; |
926 | #define RETRO_PICO_MAP_LEN (sizeof(retro_pico_map) / sizeof(retro_pico_map[0])) | |
927 | ||
928 | static void snd_write(int len) | |
929 | { | |
930 | audio_batch_cb(PsndOut, len / 4); | |
931 | } | |
932 | ||
531a8f38 | 933 | static enum input_device input_name_to_val(const char *name) |
934 | { | |
935 | if (strcmp(name, "3 button pad") == 0) | |
936 | return PICO_INPUT_PAD_3BTN; | |
937 | if (strcmp(name, "6 button pad") == 0) | |
938 | return PICO_INPUT_PAD_6BTN; | |
939 | if (strcmp(name, "None") == 0) | |
940 | return PICO_INPUT_NOTHING; | |
941 | ||
f5d4045b | 942 | if (log_cb) |
943 | log_cb(RETRO_LOG_WARN, "invalid picodrive_input: '%s'\n", name); | |
531a8f38 | 944 | return PICO_INPUT_PAD_3BTN; |
945 | } | |
946 | ||
947 | static void update_variables(void) | |
948 | { | |
949 | struct retro_variable var; | |
950 | ||
951 | var.value = NULL; | |
952 | var.key = "picodrive_input1"; | |
953 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
954 | PicoSetInputDevice(0, input_name_to_val(var.value)); | |
955 | ||
956 | var.value = NULL; | |
957 | var.key = "picodrive_input2"; | |
958 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
959 | PicoSetInputDevice(1, input_name_to_val(var.value)); | |
0185b677 | 960 | |
27f190ea | 961 | var.value = NULL; |
962 | var.key = "picodrive_sprlim"; | |
963 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
964 | if (strcmp(var.value, "enabled") == 0) | |
965 | PicoOpt |= POPT_DIS_SPRITE_LIM; | |
966 | else | |
967 | PicoOpt &= ~POPT_DIS_SPRITE_LIM; | |
968 | } | |
969 | ||
970 | var.value = NULL; | |
971 | var.key = "picodrive_ramcart"; | |
972 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
973 | if (strcmp(var.value, "enabled") == 0) | |
974 | PicoOpt |= POPT_EN_MCD_RAMCART; | |
975 | else | |
976 | PicoOpt &= ~POPT_EN_MCD_RAMCART; | |
977 | } | |
978 | ||
b38bccea O |
979 | var.value = NULL; |
980 | var.key = "picodrive_region"; | |
981 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
982 | if (strcmp(var.value, "Auto") == 0) | |
983 | PicoRegionOverride = 0; | |
984 | else if (strcmp(var.value, "Japan NTSC") == 0) | |
985 | PicoRegionOverride = 1; | |
986 | else if (strcmp(var.value, "Japan PAL") == 0) | |
987 | PicoRegionOverride = 2; | |
988 | else if (strcmp(var.value, "US") == 0) | |
989 | PicoRegionOverride = 4; | |
990 | else if (strcmp(var.value, "Europe") == 0) | |
991 | PicoRegionOverride = 8; | |
992 | } | |
993 | ||
0185b677 | 994 | #ifdef DRC_SH2 |
995 | var.value = NULL; | |
996 | var.key = "picodrive_drc"; | |
997 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
998 | if (strcmp(var.value, "enabled") == 0) | |
999 | PicoOpt |= POPT_EN_DRC; | |
1000 | else | |
1001 | PicoOpt &= ~POPT_EN_DRC; | |
1002 | } | |
1003 | #endif | |
531a8f38 | 1004 | } |
1005 | ||
2446536b | 1006 | void retro_run(void) |
1007 | { | |
1008 | bool updated = false; | |
1009 | int pad, i; | |
1010 | ||
1011 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) | |
531a8f38 | 1012 | update_variables(); |
2446536b | 1013 | |
1014 | input_poll_cb(); | |
1015 | ||
1016 | PicoPad[0] = PicoPad[1] = 0; | |
1017 | for (pad = 0; pad < 2; pad++) | |
1018 | for (i = 0; i < RETRO_PICO_MAP_LEN; i++) | |
1019 | if (input_state_cb(pad, RETRO_DEVICE_JOYPAD, 0, i)) | |
1020 | PicoPad[pad] |= retro_pico_map[i]; | |
1021 | ||
1022 | PicoFrame(); | |
1023 | ||
51c08950 | 1024 | video_cb((short *)vout_buf + vout_offset, |
1025 | vout_width, vout_height, vout_width * 2); | |
2446536b | 1026 | } |
1027 | ||
2f832b7f | 1028 | static void check_system_specs(void) |
1029 | { | |
1030 | /* TODO - set different performance level for 32X - 6 for ARM dynarec, higher for interpreter core */ | |
1031 | unsigned level = 5; | |
1032 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
1033 | } | |
1034 | ||
2446536b | 1035 | void retro_init(void) |
1036 | { | |
f5d4045b | 1037 | struct retro_log_callback log; |
2446536b | 1038 | int level; |
1039 | ||
2446536b | 1040 | level = 0; |
1041 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
1042 | ||
c681e48d | 1043 | if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) |
f5d4045b | 1044 | log_cb = log.log; |
c681e48d | 1045 | else |
1046 | log_cb = NULL; | |
f5d4045b | 1047 | |
2446536b | 1048 | environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control); |
1049 | ||
1050 | PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 | |
720bfc5d | 1051 | | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX |
1052 | | POPT_EN_32X|POPT_EN_PWM | |
1053 | | POPT_ACC_SPRITES|POPT_DIS_32C_BORDER; | |
1054 | #ifdef __arm__ | |
92dfd9af | 1055 | PicoOpt |= POPT_EN_DRC; |
720bfc5d | 1056 | #endif |
2446536b | 1057 | PsndRate = 44100; |
1058 | PicoAutoRgnOrder = 0x184; // US, EU, JP | |
2446536b | 1059 | |
2446536b | 1060 | vout_width = 320; |
1061 | vout_height = 240; | |
1062 | vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); | |
1063 | ||
1064 | PicoInit(); | |
41946d70 | 1065 | PicoDrawSetOutFormat(PDF_RGB555, 0); |
2446536b | 1066 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); |
1067 | ||
1068 | //PicoMessage = plat_status_msg_busy_next; | |
1069 | PicoMCDopenTray = disk_tray_open; | |
1070 | PicoMCDcloseTray = disk_tray_close; | |
531a8f38 | 1071 | |
1072 | update_variables(); | |
2446536b | 1073 | } |
1074 | ||
1075 | void retro_deinit(void) | |
1076 | { | |
1077 | PicoExit(); | |
1078 | } |