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 | ||
0c732676 | 27 | #ifdef _3DS |
28 | #include "3ds/3ds_utils.h" | |
29 | #define MEMOP_PROT 6 | |
30 | int svcDuplicateHandle(unsigned int* out, unsigned int original); | |
31 | int svcCloseHandle(unsigned int handle); | |
32 | int svcControlProcessMemory(unsigned int process, void* addr0, void* addr1, | |
33 | unsigned int size, unsigned int type, unsigned int perm); | |
34 | #define MEMOP_MAP 4 | |
35 | #define MEMOP_UNMAP 5 | |
36 | ||
37 | static int ctr_svchack_successful = 0; | |
38 | #endif | |
39 | ||
2446536b | 40 | #include <pico/pico_int.h> |
86b38dc4 | 41 | #include <pico/state.h> |
5345c2b9 T |
42 | #include "../common/input_pico.h" |
43 | #include "../common/version.h" | |
2446536b | 44 | #include "libretro.h" |
45 | ||
f5d4045b | 46 | static retro_log_printf_t log_cb; |
2446536b | 47 | static retro_video_refresh_t video_cb; |
48 | static retro_input_poll_t input_poll_cb; | |
49 | static retro_input_state_t input_state_cb; | |
50 | static retro_environment_t environ_cb; | |
51 | static retro_audio_sample_batch_t audio_batch_cb; | |
52 | ||
2446536b | 53 | #define VOUT_MAX_WIDTH 320 |
54 | #define VOUT_MAX_HEIGHT 240 | |
55 | static void *vout_buf; | |
51c08950 | 56 | static int vout_width, vout_height, vout_offset; |
2446536b | 57 | |
ed06ffd3 T |
58 | #ifdef _MSC_VER |
59 | static short sndBuffer[2*44100/50]; | |
60 | #else | |
2446536b | 61 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50]; |
ed06ffd3 | 62 | #endif |
2446536b | 63 | |
2446536b | 64 | static void snd_write(int len); |
65 | ||
66 | #ifdef _WIN32 | |
67 | #define SLASH '\\' | |
68 | #else | |
69 | #define SLASH '/' | |
70 | #endif | |
71 | ||
72 | /* functions called by the core */ | |
73 | ||
74 | void cache_flush_d_inval_i(void *start, void *end) | |
75 | { | |
76 | #ifdef __arm__ | |
77 | #if defined(__BLACKBERRY_QNX__) | |
eac0e638 | 78 | msync(start, end - start, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); |
2446536b | 79 | #elif defined(__MACH__) |
eac0e638 | 80 | size_t len = (char *)end - (char *)start; |
81 | sys_dcache_flush(start, len); | |
82 | sys_icache_invalidate(start, len); | |
0c732676 | 83 | #elif defined(_3DS) |
84 | ctr_flush_invalidate_cache(); | |
2446536b | 85 | #else |
0c732676 | 86 | __clear_cache(start, end); |
2446536b | 87 | #endif |
88 | #endif | |
89 | } | |
90 | ||
e8b61936 | 91 | #ifdef _WIN32 |
6f1133bc T |
92 | /* mmap() replacement for Windows |
93 | * | |
94 | * Author: Mike Frysinger <vapier@gentoo.org> | |
95 | * Placed into the public domain | |
96 | */ | |
97 | ||
98 | /* References: | |
99 | * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx | |
100 | * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx | |
101 | * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx | |
102 | * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx | |
103 | */ | |
104 | ||
105 | #define PROT_READ 0x1 | |
106 | #define PROT_WRITE 0x2 | |
107 | /* This flag is only available in WinXP+ */ | |
108 | #ifdef FILE_MAP_EXECUTE | |
109 | #define PROT_EXEC 0x4 | |
110 | #else | |
111 | #define PROT_EXEC 0x0 | |
112 | #define FILE_MAP_EXECUTE 0 | |
113 | #endif | |
114 | ||
115 | #define MAP_SHARED 0x01 | |
116 | #define MAP_PRIVATE 0x02 | |
117 | #define MAP_ANONYMOUS 0x20 | |
118 | #define MAP_ANON MAP_ANONYMOUS | |
119 | #define MAP_FAILED ((void *) -1) | |
120 | ||
121 | #ifdef __USE_FILE_OFFSET64 | |
122 | # define DWORD_HI(x) (x >> 32) | |
123 | # define DWORD_LO(x) ((x) & 0xffffffff) | |
124 | #else | |
125 | # define DWORD_HI(x) (0) | |
126 | # define DWORD_LO(x) (x) | |
127 | #endif | |
128 | ||
129 | static void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) | |
2446536b | 130 | { |
eac0e638 | 131 | uint32_t flProtect, dwDesiredAccess; |
132 | off_t end; | |
133 | HANDLE mmap_fd, h; | |
134 | void *ret; | |
135 | ||
136 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) | |
137 | return MAP_FAILED; | |
138 | if (fd == -1) { | |
139 | if (!(flags & MAP_ANON) || offset) | |
140 | return MAP_FAILED; | |
141 | } else if (flags & MAP_ANON) | |
142 | return MAP_FAILED; | |
143 | ||
144 | if (prot & PROT_WRITE) { | |
145 | if (prot & PROT_EXEC) | |
146 | flProtect = PAGE_EXECUTE_READWRITE; | |
147 | else | |
148 | flProtect = PAGE_READWRITE; | |
149 | } else if (prot & PROT_EXEC) { | |
150 | if (prot & PROT_READ) | |
151 | flProtect = PAGE_EXECUTE_READ; | |
152 | else if (prot & PROT_EXEC) | |
153 | flProtect = PAGE_EXECUTE; | |
154 | } else | |
155 | flProtect = PAGE_READONLY; | |
156 | ||
157 | end = length + offset; | |
158 | ||
159 | if (fd == -1) | |
160 | mmap_fd = INVALID_HANDLE_VALUE; | |
161 | else | |
162 | mmap_fd = (HANDLE)_get_osfhandle(fd); | |
163 | h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL); | |
164 | if (h == NULL) | |
165 | return MAP_FAILED; | |
166 | ||
167 | if (prot & PROT_WRITE) | |
168 | dwDesiredAccess = FILE_MAP_WRITE; | |
169 | else | |
170 | dwDesiredAccess = FILE_MAP_READ; | |
171 | if (prot & PROT_EXEC) | |
172 | dwDesiredAccess |= FILE_MAP_EXECUTE; | |
173 | if (flags & MAP_PRIVATE) | |
174 | dwDesiredAccess |= FILE_MAP_COPY; | |
175 | ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length); | |
176 | if (ret == NULL) { | |
177 | CloseHandle(h); | |
178 | ret = MAP_FAILED; | |
179 | } | |
180 | return ret; | |
e8b61936 | 181 | } |
2446536b | 182 | |
6f1133bc | 183 | static void munmap(void *addr, size_t length) |
e8b61936 | 184 | { |
eac0e638 | 185 | UnmapViewOfFile(addr); |
186 | /* ruh-ro, we leaked handle from CreateFileMapping() ... */ | |
e8b61936 | 187 | } |
f18d0e08 | 188 | #elif defined(NO_MMAP) |
5345c2b9 | 189 | #define PROT_EXEC 0x04 |
f18d0e08 | 190 | #define MAP_FAILED 0 |
191 | #define PROT_READ 0 | |
192 | #define PROT_WRITE 0 | |
193 | #define MAP_PRIVATE 0 | |
194 | #define MAP_ANONYMOUS 0 | |
195 | ||
196 | void* mmap(void *desired_addr, size_t len, int mmap_prot, int mmap_flags, int fildes, size_t off) | |
197 | { | |
198 | return malloc(len); | |
199 | } | |
200 | ||
201 | void munmap(void *base_addr, size_t len) | |
202 | { | |
203 | free(base_addr); | |
204 | } | |
205 | ||
206 | int mprotect(void *addr, size_t len, int prot) | |
207 | { | |
eac0e638 | 208 | /* stub - not really needed at this point since this codepath has no dynarecs */ |
f18d0e08 | 209 | return 0; |
210 | } | |
211 | ||
e8b61936 | 212 | #endif |
8e5639bc | 213 | |
214 | #ifndef MAP_ANONYMOUS | |
215 | #define MAP_ANONYMOUS MAP_ANON | |
216 | #endif | |
217 | ||
0c732676 | 218 | #ifdef _3DS |
219 | typedef struct | |
220 | { | |
221 | unsigned int requested_map; | |
222 | void* buffer; | |
223 | }pico_mmap_t; | |
224 | ||
225 | pico_mmap_t pico_mmaps[] = { | |
226 | {0x02000000, 0}, | |
227 | {0x06000000, 0}, | |
228 | {NULL, 0} | |
229 | }; | |
230 | ||
231 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) | |
232 | { | |
233 | (void)is_fixed; | |
234 | ||
235 | if (ctr_svchack_successful) | |
236 | { | |
237 | pico_mmap_t* pico_mmap; | |
238 | ||
239 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
240 | { | |
241 | if ((pico_mmap->requested_map == addr)) | |
242 | { | |
243 | unsigned int ptr_aligned, tmp; | |
244 | unsigned int currentHandle; | |
245 | unsigned int perm = 0b011; | |
246 | ||
247 | if (need_exec) | |
248 | perm = 0b111; | |
249 | ||
250 | size = (size + 0xFFF) & ~0xFFF; | |
251 | pico_mmap->buffer = malloc(size + 0x1000); | |
252 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
253 | ||
254 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
255 | ||
256 | if(svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, size, MEMOP_MAP, perm) < 0) | |
257 | { | |
258 | if (log_cb) | |
259 | log_cb(RETRO_LOG_ERROR, "could not map memory @0x%08X\n", pico_mmap->requested_map); | |
260 | exit(1); | |
261 | } | |
262 | ||
263 | svcCloseHandle(currentHandle); | |
264 | return (void*)pico_mmap->requested_map; | |
265 | } | |
266 | } | |
267 | } | |
268 | ||
269 | return malloc(size); | |
270 | } | |
271 | ||
272 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
273 | { | |
274 | if (ctr_svchack_successful) | |
275 | { | |
276 | pico_mmap_t* pico_mmap; | |
277 | ||
278 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
279 | { | |
280 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
281 | { | |
282 | unsigned int ptr_aligned; | |
283 | unsigned int currentHandle; | |
284 | void* tmp; | |
285 | ||
286 | oldsize = (oldsize + 0xFFF) & ~0xFFF; | |
287 | newsize = (newsize + 0xFFF) & ~0xFFF; | |
288 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
289 | ||
290 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
291 | ||
292 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, oldsize, MEMOP_UNMAP, 0b011); | |
293 | ||
294 | tmp = realloc(pico_mmap->buffer, newsize + 0x1000); | |
295 | if(!tmp) | |
296 | return NULL; | |
297 | ||
298 | pico_mmap->buffer = tmp; | |
299 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
300 | ||
301 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, newsize, MEMOP_MAP, 0x3); | |
302 | ||
303 | svcCloseHandle(currentHandle); | |
304 | ||
305 | return ptr; | |
306 | } | |
307 | } | |
308 | } | |
309 | ||
310 | return realloc(ptr, newsize); | |
311 | ||
312 | } | |
313 | void plat_munmap(void *ptr, size_t size) | |
314 | { | |
315 | if (ctr_svchack_successful) | |
316 | { | |
317 | pico_mmap_t* pico_mmap; | |
318 | ||
319 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
320 | { | |
321 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
322 | { | |
323 | unsigned int ptr_aligned; | |
324 | unsigned int currentHandle; | |
325 | ||
326 | size = (size + 0xFFF) & ~0xFFF; | |
327 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
328 | ||
329 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
330 | ||
331 | svcControlProcessMemory(currentHandle, (void*)pico_mmap->requested_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0b011); | |
332 | ||
333 | svcCloseHandle(currentHandle); | |
334 | ||
335 | free(pico_mmap->buffer); | |
336 | pico_mmap->buffer = NULL; | |
337 | return; | |
338 | } | |
339 | } | |
340 | } | |
341 | ||
342 | free(ptr); | |
343 | } | |
344 | ||
345 | #else | |
e8b61936 | 346 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) |
347 | { | |
e8b61936 | 348 | int flags = MAP_PRIVATE | MAP_ANONYMOUS; |
349 | void *req, *ret; | |
350 | ||
351 | req = (void *)addr; | |
352 | ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0); | |
353 | if (ret == MAP_FAILED) { | |
f5d4045b | 354 | if (log_cb) |
355 | log_cb(RETRO_LOG_ERROR, "mmap(%08lx, %zd) failed: %d\n", addr, size, errno); | |
e8b61936 | 356 | return NULL; |
357 | } | |
358 | ||
359 | if (addr != 0 && ret != (void *)addr) { | |
f5d4045b | 360 | if (log_cb) |
361 | log_cb(RETRO_LOG_WARN, "warning: wanted to map @%08lx, got %p\n", | |
362 | addr, ret); | |
e8b61936 | 363 | |
364 | if (is_fixed) { | |
365 | munmap(ret, size); | |
366 | return NULL; | |
367 | } | |
368 | } | |
2446536b | 369 | |
eac0e638 | 370 | return ret; |
2446536b | 371 | } |
372 | ||
373 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
374 | { | |
8c8b7284 | 375 | #ifdef __linux__ |
eac0e638 | 376 | void *ret = mremap(ptr, oldsize, newsize, 0); |
377 | if (ret == MAP_FAILED) | |
378 | return NULL; | |
2446536b | 379 | |
eac0e638 | 380 | return ret; |
8c8b7284 | 381 | #else |
eac0e638 | 382 | void *tmp, *ret; |
383 | size_t preserve_size; | |
384 | ||
385 | preserve_size = oldsize; | |
386 | if (preserve_size > newsize) | |
387 | preserve_size = newsize; | |
388 | tmp = malloc(preserve_size); | |
389 | if (tmp == NULL) | |
390 | return NULL; | |
391 | memcpy(tmp, ptr, preserve_size); | |
392 | ||
393 | munmap(ptr, oldsize); | |
394 | ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE, | |
395 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); | |
396 | if (ret == MAP_FAILED) { | |
397 | free(tmp); | |
398 | return NULL; | |
399 | } | |
400 | memcpy(ret, tmp, preserve_size); | |
401 | free(tmp); | |
402 | return ret; | |
8c8b7284 | 403 | #endif |
2446536b | 404 | } |
405 | ||
406 | void plat_munmap(void *ptr, size_t size) | |
407 | { | |
eac0e638 | 408 | if (ptr != NULL) |
409 | munmap(ptr, size); | |
2446536b | 410 | } |
0c732676 | 411 | #endif |
2446536b | 412 | |
c25d78ee | 413 | int plat_mem_set_exec(void *ptr, size_t size) |
414 | { | |
e8b61936 | 415 | #ifdef _WIN32 |
416 | int ret = VirtualProtect(ptr,size,PAGE_EXECUTE_READWRITE,0); | |
f5d4045b | 417 | if (ret == 0 && log_cb) |
418 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, 0); | |
0c732676 | 419 | #elif defined(_3DS) |
420 | int ret = -1; | |
421 | if (ctr_svchack_successful) | |
422 | { | |
423 | unsigned int currentHandle; | |
424 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
425 | ret = svcControlProcessMemory(currentHandle, ptr, 0x0, | |
426 | size, MEMOP_PROT, 0b111); | |
427 | svcCloseHandle(currentHandle); | |
428 | ctr_flush_invalidate_cache(); | |
429 | ||
430 | } | |
431 | else | |
432 | { | |
433 | if (log_cb) | |
434 | log_cb(RETRO_LOG_ERROR, "plat_mem_set_exec called with no svcControlProcessMemory access\n"); | |
435 | exit(1); | |
436 | } | |
437 | ||
438 | ||
e8b61936 | 439 | #else |
440 | int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC); | |
f5d4045b | 441 | if (ret != 0 && log_cb) |
442 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, errno); | |
e8b61936 | 443 | #endif |
eac0e638 | 444 | return ret; |
c25d78ee | 445 | } |
446 | ||
2446536b | 447 | void emu_video_mode_change(int start_line, int line_count, int is_32cols) |
448 | { | |
eac0e638 | 449 | memset(vout_buf, 0, 320 * 240 * 2); |
450 | vout_width = is_32cols ? 256 : 320; | |
451 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
51c08950 | 452 | |
eac0e638 | 453 | vout_height = line_count; |
454 | vout_offset = vout_width * start_line; | |
2446536b | 455 | } |
456 | ||
457 | void emu_32x_startup(void) | |
458 | { | |
2446536b | 459 | } |
460 | ||
2446536b | 461 | void lprintf(const char *fmt, ...) |
462 | { | |
c681e48d | 463 | char buffer[256]; |
464 | va_list ap; | |
465 | va_start(ap, fmt); | |
466 | vsprintf(buffer, fmt, ap); | |
f5d4045b | 467 | /* TODO - add 'level' param for warning/error messages? */ |
468 | if (log_cb) | |
0c732676 | 469 | log_cb(RETRO_LOG_INFO, "%s\n", fmt, ap); |
470 | va_end(ap); | |
2446536b | 471 | } |
472 | ||
2446536b | 473 | /* libretro */ |
474 | void retro_set_environment(retro_environment_t cb) | |
475 | { | |
eac0e638 | 476 | static const struct retro_variable vars[] = { |
477 | //{ "region", "Region; Auto|NTSC|PAL" }, | |
478 | { "picodrive_input1", "Input device 1; 3 button pad|6 button pad|None" }, | |
479 | { "picodrive_input2", "Input device 2; 3 button pad|6 button pad|None" }, | |
480 | { "picodrive_sprlim", "No sprite limit; disabled|enabled" }, | |
481 | { "picodrive_ramcart", "MegaCD RAM cart; disabled|enabled" }, | |
482 | { "picodrive_region", "Region; Auto|Japan NTSC|Japan PAL|US|Europe" }, | |
0185b677 | 483 | #ifdef DRC_SH2 |
eac0e638 | 484 | { "picodrive_drc", "Dynamic recompilers; enabled|disabled" }, |
0185b677 | 485 | #endif |
eac0e638 | 486 | { NULL, NULL }, |
487 | }; | |
2446536b | 488 | |
eac0e638 | 489 | environ_cb = cb; |
2446536b | 490 | |
eac0e638 | 491 | cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars); |
2446536b | 492 | } |
493 | ||
494 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } | |
495 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } | |
496 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } | |
497 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } | |
498 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } | |
499 | ||
500 | unsigned retro_api_version(void) | |
501 | { | |
eac0e638 | 502 | return RETRO_API_VERSION; |
2446536b | 503 | } |
504 | ||
505 | void retro_set_controller_port_device(unsigned port, unsigned device) | |
506 | { | |
507 | } | |
508 | ||
509 | void retro_get_system_info(struct retro_system_info *info) | |
510 | { | |
eac0e638 | 511 | memset(info, 0, sizeof(*info)); |
512 | info->library_name = "PicoDrive"; | |
513 | info->library_version = VERSION; | |
514 | info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|sms"; | |
515 | info->need_fullpath = true; | |
2446536b | 516 | } |
517 | ||
518 | void retro_get_system_av_info(struct retro_system_av_info *info) | |
519 | { | |
eac0e638 | 520 | memset(info, 0, sizeof(*info)); |
521 | info->timing.fps = Pico.m.pal ? 50 : 60; | |
522 | info->timing.sample_rate = 44100; | |
523 | info->geometry.base_width = 320; | |
524 | info->geometry.base_height = vout_height; | |
525 | info->geometry.max_width = VOUT_MAX_WIDTH; | |
526 | info->geometry.max_height = VOUT_MAX_HEIGHT; | |
527 | info->geometry.aspect_ratio = 4.0f / 3.0f; | |
2446536b | 528 | } |
529 | ||
86b38dc4 | 530 | /* savestates */ |
531 | struct savestate_state { | |
eac0e638 | 532 | const char *load_buf; |
533 | char *save_buf; | |
534 | size_t size; | |
535 | size_t pos; | |
86b38dc4 | 536 | }; |
537 | ||
538 | size_t state_read(void *p, size_t size, size_t nmemb, void *file) | |
539 | { | |
eac0e638 | 540 | struct savestate_state *state = file; |
541 | size_t bsize = size * nmemb; | |
86b38dc4 | 542 | |
eac0e638 | 543 | if (state->pos + bsize > state->size) { |
f5d4045b | 544 | if (log_cb) |
545 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
546 | state->pos + bsize, state->size); | |
eac0e638 | 547 | bsize = state->size - state->pos; |
548 | if ((int)bsize <= 0) | |
549 | return 0; | |
550 | } | |
551 | ||
552 | memcpy(p, state->load_buf + state->pos, bsize); | |
553 | state->pos += bsize; | |
554 | return bsize; | |
86b38dc4 | 555 | } |
556 | ||
557 | size_t state_write(void *p, size_t size, size_t nmemb, void *file) | |
558 | { | |
eac0e638 | 559 | struct savestate_state *state = file; |
560 | size_t bsize = size * nmemb; | |
86b38dc4 | 561 | |
eac0e638 | 562 | if (state->pos + bsize > state->size) { |
f5d4045b | 563 | if (log_cb) |
564 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
565 | state->pos + bsize, state->size); | |
eac0e638 | 566 | bsize = state->size - state->pos; |
567 | if ((int)bsize <= 0) | |
568 | return 0; | |
569 | } | |
570 | ||
571 | memcpy(state->save_buf + state->pos, p, bsize); | |
572 | state->pos += bsize; | |
573 | return bsize; | |
86b38dc4 | 574 | } |
575 | ||
576 | size_t state_skip(void *p, size_t size, size_t nmemb, void *file) | |
577 | { | |
eac0e638 | 578 | struct savestate_state *state = file; |
579 | size_t bsize = size * nmemb; | |
86b38dc4 | 580 | |
eac0e638 | 581 | state->pos += bsize; |
582 | return bsize; | |
86b38dc4 | 583 | } |
584 | ||
585 | size_t state_eof(void *file) | |
586 | { | |
eac0e638 | 587 | struct savestate_state *state = file; |
86b38dc4 | 588 | |
eac0e638 | 589 | return state->pos >= state->size; |
86b38dc4 | 590 | } |
591 | ||
592 | int state_fseek(void *file, long offset, int whence) | |
593 | { | |
eac0e638 | 594 | struct savestate_state *state = file; |
595 | ||
596 | switch (whence) { | |
597 | case SEEK_SET: | |
598 | state->pos = offset; | |
599 | break; | |
600 | case SEEK_CUR: | |
601 | state->pos += offset; | |
602 | break; | |
603 | case SEEK_END: | |
604 | state->pos = state->size + offset; | |
605 | break; | |
606 | } | |
607 | return (int)state->pos; | |
86b38dc4 | 608 | } |
609 | ||
610 | /* savestate sizes vary wildly depending if cd/32x or | |
611 | * carthw is active, so run the whole thing to get size */ | |
eac0e638 | 612 | size_t retro_serialize_size(void) |
613 | { | |
614 | struct savestate_state state = { 0, }; | |
615 | int ret; | |
86b38dc4 | 616 | |
eac0e638 | 617 | ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek); |
618 | if (ret != 0) | |
619 | return 0; | |
86b38dc4 | 620 | |
eac0e638 | 621 | return state.pos; |
2446536b | 622 | } |
623 | ||
624 | bool retro_serialize(void *data, size_t size) | |
eac0e638 | 625 | { |
626 | struct savestate_state state = { 0, }; | |
627 | int ret; | |
86b38dc4 | 628 | |
eac0e638 | 629 | state.save_buf = data; |
630 | state.size = size; | |
631 | state.pos = 0; | |
86b38dc4 | 632 | |
eac0e638 | 633 | ret = PicoStateFP(&state, 1, NULL, state_write, |
634 | NULL, state_fseek); | |
635 | return ret == 0; | |
2446536b | 636 | } |
637 | ||
638 | bool retro_unserialize(const void *data, size_t size) | |
639 | { | |
eac0e638 | 640 | struct savestate_state state = { 0, }; |
641 | int ret; | |
86b38dc4 | 642 | |
eac0e638 | 643 | state.load_buf = data; |
644 | state.size = size; | |
645 | state.pos = 0; | |
86b38dc4 | 646 | |
eac0e638 | 647 | ret = PicoStateFP(&state, 0, state_read, NULL, |
648 | state_eof, state_fseek); | |
649 | return ret == 0; | |
2446536b | 650 | } |
651 | ||
652 | /* cheats - TODO */ | |
653 | void retro_cheat_reset(void) | |
654 | { | |
655 | } | |
656 | ||
657 | void retro_cheat_set(unsigned index, bool enabled, const char *code) | |
658 | { | |
659 | } | |
660 | ||
661 | /* multidisk support */ | |
662 | static bool disk_ejected; | |
663 | static unsigned int disk_current_index; | |
664 | static unsigned int disk_count; | |
665 | static struct disks_state { | |
eac0e638 | 666 | char *fname; |
2446536b | 667 | } disks[8]; |
668 | ||
669 | static bool disk_set_eject_state(bool ejected) | |
670 | { | |
eac0e638 | 671 | // TODO? |
672 | disk_ejected = ejected; | |
673 | return true; | |
2446536b | 674 | } |
675 | ||
676 | static bool disk_get_eject_state(void) | |
677 | { | |
eac0e638 | 678 | return disk_ejected; |
2446536b | 679 | } |
680 | ||
681 | static unsigned int disk_get_image_index(void) | |
682 | { | |
eac0e638 | 683 | return disk_current_index; |
2446536b | 684 | } |
685 | ||
686 | static bool disk_set_image_index(unsigned int index) | |
687 | { | |
eac0e638 | 688 | enum cd_img_type cd_type; |
689 | int ret; | |
2446536b | 690 | |
eac0e638 | 691 | if (index >= sizeof(disks) / sizeof(disks[0])) |
692 | return false; | |
2446536b | 693 | |
eac0e638 | 694 | if (disks[index].fname == NULL) { |
f5d4045b | 695 | if (log_cb) |
696 | log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index); | |
2446536b | 697 | |
eac0e638 | 698 | // RetroArch specifies "no disk" with index == count, |
699 | // so don't fail here.. | |
700 | disk_current_index = index; | |
701 | return true; | |
702 | } | |
2446536b | 703 | |
f5d4045b | 704 | if (log_cb) |
705 | log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index, | |
706 | disks[index].fname); | |
2446536b | 707 | |
eac0e638 | 708 | ret = -1; |
709 | cd_type = PicoCdCheck(disks[index].fname, NULL); | |
710 | if (cd_type != CIT_NOT_CD) | |
711 | ret = cdd_load(disks[index].fname, cd_type); | |
712 | if (ret != 0) { | |
f5d4045b | 713 | if (log_cb) |
714 | log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n"); | |
eac0e638 | 715 | return 0; |
716 | } | |
2446536b | 717 | |
eac0e638 | 718 | disk_current_index = index; |
719 | return true; | |
2446536b | 720 | } |
721 | ||
722 | static unsigned int disk_get_num_images(void) | |
723 | { | |
eac0e638 | 724 | return disk_count; |
2446536b | 725 | } |
726 | ||
727 | static bool disk_replace_image_index(unsigned index, | |
eac0e638 | 728 | const struct retro_game_info *info) |
2446536b | 729 | { |
eac0e638 | 730 | bool ret = true; |
2446536b | 731 | |
eac0e638 | 732 | if (index >= sizeof(disks) / sizeof(disks[0])) |
733 | return false; | |
2446536b | 734 | |
eac0e638 | 735 | if (disks[index].fname != NULL) |
736 | free(disks[index].fname); | |
737 | disks[index].fname = NULL; | |
2446536b | 738 | |
eac0e638 | 739 | if (info != NULL) { |
740 | disks[index].fname = strdup(info->path); | |
741 | if (index == disk_current_index) | |
742 | ret = disk_set_image_index(index); | |
743 | } | |
2446536b | 744 | |
eac0e638 | 745 | return ret; |
2446536b | 746 | } |
747 | ||
748 | static bool disk_add_image_index(void) | |
749 | { | |
eac0e638 | 750 | if (disk_count >= sizeof(disks) / sizeof(disks[0])) |
751 | return false; | |
2446536b | 752 | |
eac0e638 | 753 | disk_count++; |
754 | return true; | |
2446536b | 755 | } |
756 | ||
757 | static struct retro_disk_control_callback disk_control = { | |
eac0e638 | 758 | disk_set_eject_state, |
759 | disk_get_eject_state, | |
760 | disk_get_image_index, | |
761 | disk_set_image_index, | |
762 | disk_get_num_images, | |
763 | disk_replace_image_index, | |
764 | disk_add_image_index, | |
2446536b | 765 | }; |
766 | ||
767 | static void disk_tray_open(void) | |
768 | { | |
f5d4045b | 769 | if (log_cb) |
770 | log_cb(RETRO_LOG_INFO, "cd tray open\n"); | |
eac0e638 | 771 | disk_ejected = 1; |
2446536b | 772 | } |
773 | ||
774 | static void disk_tray_close(void) | |
775 | { | |
f5d4045b | 776 | if (log_cb) |
777 | log_cb(RETRO_LOG_INFO, "cd tray close\n"); | |
eac0e638 | 778 | disk_ejected = 0; |
2446536b | 779 | } |
780 | ||
781 | ||
782 | static const char * const biosfiles_us[] = { | |
eac0e638 | 783 | "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U" |
2446536b | 784 | }; |
785 | static const char * const biosfiles_eu[] = { | |
eac0e638 | 786 | "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E" |
2446536b | 787 | }; |
788 | static const char * const biosfiles_jp[] = { | |
eac0e638 | 789 | "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J" |
2446536b | 790 | }; |
791 | ||
792 | static void make_system_path(char *buf, size_t buf_size, | |
eac0e638 | 793 | const char *name, const char *ext) |
2446536b | 794 | { |
eac0e638 | 795 | const char *dir = NULL; |
796 | ||
797 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) { | |
798 | snprintf(buf, buf_size, "%s%c%s%s", dir, SLASH, name, ext); | |
799 | } | |
800 | else { | |
801 | snprintf(buf, buf_size, "%s%s", name, ext); | |
802 | } | |
2446536b | 803 | } |
804 | ||
805 | static const char *find_bios(int *region, const char *cd_fname) | |
806 | { | |
eac0e638 | 807 | const char * const *files; |
808 | static char path[256]; | |
809 | int i, count; | |
810 | FILE *f = NULL; | |
811 | ||
812 | if (*region == 4) { // US | |
813 | files = biosfiles_us; | |
814 | count = sizeof(biosfiles_us) / sizeof(char *); | |
815 | } else if (*region == 8) { // EU | |
816 | files = biosfiles_eu; | |
817 | count = sizeof(biosfiles_eu) / sizeof(char *); | |
818 | } else if (*region == 1 || *region == 2) { | |
819 | files = biosfiles_jp; | |
820 | count = sizeof(biosfiles_jp) / sizeof(char *); | |
821 | } else { | |
822 | return NULL; | |
823 | } | |
824 | ||
825 | for (i = 0; i < count; i++) | |
826 | { | |
827 | make_system_path(path, sizeof(path), files[i], ".bin"); | |
828 | f = fopen(path, "rb"); | |
829 | if (f != NULL) | |
830 | break; | |
831 | ||
832 | make_system_path(path, sizeof(path), files[i], ".zip"); | |
833 | f = fopen(path, "rb"); | |
834 | if (f != NULL) | |
835 | break; | |
836 | } | |
837 | ||
838 | if (f != NULL) { | |
f5d4045b | 839 | if (log_cb) |
840 | log_cb(RETRO_LOG_INFO, "using bios: %s\n", path); | |
eac0e638 | 841 | fclose(f); |
842 | return path; | |
843 | } | |
2446536b | 844 | |
eac0e638 | 845 | return NULL; |
2446536b | 846 | } |
847 | ||
848 | bool retro_load_game(const struct retro_game_info *info) | |
849 | { | |
eac0e638 | 850 | enum media_type_e media_type; |
851 | static char carthw_path[256]; | |
852 | size_t i; | |
2446536b | 853 | |
a1f2e1b1 | 854 | struct retro_input_descriptor desc[] = { |
855 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
856 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
857 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
858 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
859 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
860 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
861 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
862 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
863 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
864 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
865 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
866 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
867 | ||
868 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
869 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
870 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
871 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
872 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
873 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
874 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
875 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
876 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
877 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
878 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
879 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
880 | ||
881 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
882 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
883 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
884 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
885 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
886 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
887 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
888 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
889 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
890 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
891 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
892 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
893 | ||
894 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
895 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
896 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
897 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
898 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
899 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
900 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
901 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
902 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
903 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
904 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
905 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
906 | ||
907 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
908 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
909 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
910 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
911 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
912 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
913 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
914 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
915 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
916 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
917 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
918 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
919 | ||
920 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
921 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
922 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
923 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
924 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
925 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
926 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
927 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
928 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
929 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
930 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
931 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
932 | ||
933 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
934 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
935 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
936 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
937 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
938 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
939 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
940 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
941 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
942 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
943 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
944 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
945 | ||
946 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
947 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
948 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
949 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
950 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
951 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
952 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
953 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
954 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
955 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
956 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
957 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
958 | ||
959 | { 0 }, | |
960 | }; | |
961 | ||
962 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc); | |
963 | ||
eac0e638 | 964 | enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; |
965 | if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { | |
f5d4045b | 966 | if (log_cb) |
967 | log_cb(RETRO_LOG_ERROR, "RGB565 support required, sorry\n"); | |
eac0e638 | 968 | return false; |
969 | } | |
2446536b | 970 | |
eac0e638 | 971 | if (info == NULL || info->path == NULL) { |
f5d4045b | 972 | if (log_cb) |
973 | log_cb(RETRO_LOG_ERROR, "info->path required\n"); | |
eac0e638 | 974 | return false; |
975 | } | |
2446536b | 976 | |
eac0e638 | 977 | for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) { |
978 | if (disks[i].fname != NULL) { | |
979 | free(disks[i].fname); | |
980 | disks[i].fname = NULL; | |
981 | } | |
982 | } | |
2446536b | 983 | |
eac0e638 | 984 | disk_current_index = 0; |
985 | disk_count = 1; | |
986 | disks[0].fname = strdup(info->path); | |
2446536b | 987 | |
eac0e638 | 988 | make_system_path(carthw_path, sizeof(carthw_path), "carthw", ".cfg"); |
2446536b | 989 | |
eac0e638 | 990 | media_type = PicoLoadMedia(info->path, carthw_path, |
991 | find_bios, NULL); | |
2446536b | 992 | |
eac0e638 | 993 | switch (media_type) { |
994 | case PM_BAD_DETECT: | |
f5d4045b | 995 | if (log_cb) |
996 | log_cb(RETRO_LOG_ERROR, "Failed to detect ROM/CD image type.\n"); | |
eac0e638 | 997 | return false; |
998 | case PM_BAD_CD: | |
f5d4045b | 999 | if (log_cb) |
1000 | log_cb(RETRO_LOG_ERROR, "Invalid CD image\n"); | |
eac0e638 | 1001 | return false; |
1002 | case PM_BAD_CD_NO_BIOS: | |
f5d4045b | 1003 | if (log_cb) |
1004 | log_cb(RETRO_LOG_ERROR, "Missing BIOS\n"); | |
eac0e638 | 1005 | return false; |
1006 | case PM_ERROR: | |
f5d4045b | 1007 | if (log_cb) |
1008 | log_cb(RETRO_LOG_ERROR, "Load error\n"); | |
eac0e638 | 1009 | return false; |
1010 | default: | |
1011 | break; | |
1012 | } | |
2446536b | 1013 | |
eac0e638 | 1014 | PicoLoopPrepare(); |
2446536b | 1015 | |
eac0e638 | 1016 | PicoWriteSound = snd_write; |
1017 | memset(sndBuffer, 0, sizeof(sndBuffer)); | |
1018 | PsndOut = sndBuffer; | |
1019 | PsndRerate(0); | |
2446536b | 1020 | |
eac0e638 | 1021 | return true; |
2446536b | 1022 | } |
1023 | ||
1024 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) | |
1025 | { | |
eac0e638 | 1026 | return false; |
2446536b | 1027 | } |
1028 | ||
eac0e638 | 1029 | void retro_unload_game(void) |
2446536b | 1030 | { |
1031 | } | |
1032 | ||
1033 | unsigned retro_get_region(void) | |
1034 | { | |
eac0e638 | 1035 | return Pico.m.pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC; |
2446536b | 1036 | } |
1037 | ||
1038 | void *retro_get_memory_data(unsigned id) | |
1039 | { | |
eac0e638 | 1040 | if (id != RETRO_MEMORY_SAVE_RAM) |
1041 | return NULL; | |
2446536b | 1042 | |
eac0e638 | 1043 | if (PicoAHW & PAHW_MCD) |
1044 | return Pico_mcd->bram; | |
1045 | else | |
1046 | return SRam.data; | |
2446536b | 1047 | } |
1048 | ||
1049 | size_t retro_get_memory_size(unsigned id) | |
1050 | { | |
eac0e638 | 1051 | unsigned int i; |
1052 | int sum; | |
0fd6751d | 1053 | |
eac0e638 | 1054 | if (id != RETRO_MEMORY_SAVE_RAM) |
1055 | return 0; | |
2446536b | 1056 | |
eac0e638 | 1057 | if (PicoAHW & PAHW_MCD) |
1058 | // bram | |
1059 | return 0x2000; | |
0fd6751d | 1060 | |
eac0e638 | 1061 | if (Pico.m.frame_count == 0) |
1062 | return SRam.size; | |
0fd6751d | 1063 | |
eac0e638 | 1064 | // if game doesn't write to sram, don't report it to |
1065 | // libretro so that RA doesn't write out zeroed .srm | |
1066 | for (i = 0, sum = 0; i < SRam.size; i++) | |
1067 | sum |= SRam.data[i]; | |
0fd6751d | 1068 | |
eac0e638 | 1069 | return (sum != 0) ? SRam.size : 0; |
2446536b | 1070 | } |
1071 | ||
1072 | void retro_reset(void) | |
1073 | { | |
eac0e638 | 1074 | PicoReset(); |
2446536b | 1075 | } |
1076 | ||
1077 | static const unsigned short retro_pico_map[] = { | |
eac0e638 | 1078 | 1 << GBTN_B, |
1079 | 1 << GBTN_A, | |
1080 | 1 << GBTN_MODE, | |
1081 | 1 << GBTN_START, | |
1082 | 1 << GBTN_UP, | |
1083 | 1 << GBTN_DOWN, | |
1084 | 1 << GBTN_LEFT, | |
1085 | 1 << GBTN_RIGHT, | |
1086 | 1 << GBTN_C, | |
1087 | 1 << GBTN_Y, | |
1088 | 1 << GBTN_X, | |
1089 | 1 << GBTN_Z, | |
2446536b | 1090 | }; |
1091 | #define RETRO_PICO_MAP_LEN (sizeof(retro_pico_map) / sizeof(retro_pico_map[0])) | |
1092 | ||
1093 | static void snd_write(int len) | |
1094 | { | |
eac0e638 | 1095 | audio_batch_cb(PsndOut, len / 4); |
2446536b | 1096 | } |
1097 | ||
531a8f38 | 1098 | static enum input_device input_name_to_val(const char *name) |
1099 | { | |
eac0e638 | 1100 | if (strcmp(name, "3 button pad") == 0) |
1101 | return PICO_INPUT_PAD_3BTN; | |
1102 | if (strcmp(name, "6 button pad") == 0) | |
1103 | return PICO_INPUT_PAD_6BTN; | |
1104 | if (strcmp(name, "None") == 0) | |
1105 | return PICO_INPUT_NOTHING; | |
531a8f38 | 1106 | |
f5d4045b | 1107 | if (log_cb) |
1108 | log_cb(RETRO_LOG_WARN, "invalid picodrive_input: '%s'\n", name); | |
eac0e638 | 1109 | return PICO_INPUT_PAD_3BTN; |
531a8f38 | 1110 | } |
1111 | ||
1112 | static void update_variables(void) | |
1113 | { | |
eac0e638 | 1114 | struct retro_variable var; |
1115 | ||
1116 | var.value = NULL; | |
1117 | var.key = "picodrive_input1"; | |
1118 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1119 | PicoSetInputDevice(0, input_name_to_val(var.value)); | |
1120 | ||
1121 | var.value = NULL; | |
1122 | var.key = "picodrive_input2"; | |
1123 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1124 | PicoSetInputDevice(1, input_name_to_val(var.value)); | |
1125 | ||
1126 | var.value = NULL; | |
1127 | var.key = "picodrive_sprlim"; | |
1128 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1129 | if (strcmp(var.value, "enabled") == 0) | |
1130 | PicoOpt |= POPT_DIS_SPRITE_LIM; | |
1131 | else | |
1132 | PicoOpt &= ~POPT_DIS_SPRITE_LIM; | |
1133 | } | |
1134 | ||
1135 | var.value = NULL; | |
1136 | var.key = "picodrive_ramcart"; | |
1137 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1138 | if (strcmp(var.value, "enabled") == 0) | |
1139 | PicoOpt |= POPT_EN_MCD_RAMCART; | |
1140 | else | |
1141 | PicoOpt &= ~POPT_EN_MCD_RAMCART; | |
1142 | } | |
1143 | ||
1144 | var.value = NULL; | |
1145 | var.key = "picodrive_region"; | |
1146 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1147 | if (strcmp(var.value, "Auto") == 0) | |
1148 | PicoRegionOverride = 0; | |
1149 | else if (strcmp(var.value, "Japan NTSC") == 0) | |
1150 | PicoRegionOverride = 1; | |
1151 | else if (strcmp(var.value, "Japan PAL") == 0) | |
1152 | PicoRegionOverride = 2; | |
1153 | else if (strcmp(var.value, "US") == 0) | |
1154 | PicoRegionOverride = 4; | |
1155 | else if (strcmp(var.value, "Europe") == 0) | |
1156 | PicoRegionOverride = 8; | |
1157 | } | |
b38bccea | 1158 | |
0185b677 | 1159 | #ifdef DRC_SH2 |
eac0e638 | 1160 | var.value = NULL; |
1161 | var.key = "picodrive_drc"; | |
1162 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1163 | if (strcmp(var.value, "enabled") == 0) | |
1164 | PicoOpt |= POPT_EN_DRC; | |
1165 | else | |
1166 | PicoOpt &= ~POPT_EN_DRC; | |
1167 | } | |
0185b677 | 1168 | #endif |
0c732676 | 1169 | #ifdef _3DS |
1170 | if(!ctr_svchack_successful) | |
1171 | PicoOpt &= ~POPT_EN_DRC; | |
1172 | #endif | |
531a8f38 | 1173 | } |
1174 | ||
eac0e638 | 1175 | void retro_run(void) |
2446536b | 1176 | { |
eac0e638 | 1177 | bool updated = false; |
1178 | int pad, i; | |
2446536b | 1179 | |
eac0e638 | 1180 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) |
1181 | update_variables(); | |
2446536b | 1182 | |
0c732676 | 1183 | input_poll_cb(); |
2446536b | 1184 | |
eac0e638 | 1185 | PicoPad[0] = PicoPad[1] = 0; |
1186 | for (pad = 0; pad < 2; pad++) | |
1187 | for (i = 0; i < RETRO_PICO_MAP_LEN; i++) | |
1188 | if (input_state_cb(pad, RETRO_DEVICE_JOYPAD, 0, i)) | |
1189 | PicoPad[pad] |= retro_pico_map[i]; | |
2446536b | 1190 | |
eac0e638 | 1191 | PicoFrame(); |
2446536b | 1192 | |
eac0e638 | 1193 | video_cb((short *)vout_buf + vout_offset, |
1194 | vout_width, vout_height, vout_width * 2); | |
2446536b | 1195 | } |
1196 | ||
2f832b7f | 1197 | static void check_system_specs(void) |
1198 | { | |
1199 | /* TODO - set different performance level for 32X - 6 for ARM dynarec, higher for interpreter core */ | |
1200 | unsigned level = 5; | |
1201 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
1202 | } | |
1203 | ||
2446536b | 1204 | void retro_init(void) |
1205 | { | |
f5d4045b | 1206 | struct retro_log_callback log; |
eac0e638 | 1207 | int level; |
2446536b | 1208 | |
eac0e638 | 1209 | level = 0; |
1210 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
2446536b | 1211 | |
c681e48d | 1212 | if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) |
f5d4045b | 1213 | log_cb = log.log; |
c681e48d | 1214 | else |
1215 | log_cb = NULL; | |
f5d4045b | 1216 | |
eac0e638 | 1217 | environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control); |
2446536b | 1218 | |
0c732676 | 1219 | #ifdef _3DS |
1220 | ctr_svchack_successful = ctr_svchack_init(); | |
1221 | #endif | |
1222 | ||
eac0e638 | 1223 | PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |
1224 | | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX | |
1225 | | POPT_EN_32X|POPT_EN_PWM | |
1226 | | POPT_ACC_SPRITES|POPT_DIS_32C_BORDER; | |
720bfc5d | 1227 | #ifdef __arm__ |
0c732676 | 1228 | #ifdef _3DS |
1229 | if (ctr_svchack_successful) | |
1230 | #endif | |
1231 | PicoOpt |= POPT_EN_DRC; | |
720bfc5d | 1232 | #endif |
eac0e638 | 1233 | PsndRate = 44100; |
1234 | PicoAutoRgnOrder = 0x184; // US, EU, JP | |
2446536b | 1235 | |
eac0e638 | 1236 | vout_width = 320; |
0c732676 | 1237 | vout_height = 240; |
1238 | vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); | |
2446536b | 1239 | |
0c732676 | 1240 | PicoInit(); |
1241 | PicoDrawSetOutFormat(PDF_RGB555, 0); | |
1242 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
2446536b | 1243 | |
eac0e638 | 1244 | //PicoMessage = plat_status_msg_busy_next; |
1245 | PicoMCDopenTray = disk_tray_open; | |
1246 | PicoMCDcloseTray = disk_tray_close; | |
531a8f38 | 1247 | |
0c732676 | 1248 | update_variables(); |
2446536b | 1249 | } |
1250 | ||
1251 | void retro_deinit(void) | |
1252 | { | |
eac0e638 | 1253 | PicoExit(); |
2446536b | 1254 | } |